5 Changes between 1.0.1f and 1.0.2 [xx XXX xxxx]
7 *) A missing bounds check in the handling of the TLS heartbeat extension
8 can be used to reveal up to 64k of memory to a connected client or
11 Thanks for Neel Mehta of Google Security for discovering this bug and to
12 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
13 preparing the fix (CVE-2014-0160)
14 [Adam Langley, Bodo Moeller]
16 *) Fix for the attack described in the paper "Recovering OpenSSL
17 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
18 by Yuval Yarom and Naomi Benger. Details can be obtained from:
19 http://eprint.iacr.org/2014/140
21 Thanks to Yuval Yarom and Naomi Benger for discovering this
22 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
23 [Yuval Yarom and Naomi Benger]
25 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
26 this fixes a limiation in previous versions of OpenSSL.
29 *) TLS pad extension: draft-agl-tls-padding-03
31 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the
32 TLS client Hello record length value would otherwise be > 255 and
33 less that 512 pad with a dummy extension containing zeroes so it
34 is at least 512 bytes long.
36 [Adam Langley, Steve Henson]
38 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
39 MGF1 digest and OAEP label.
42 *) Add callbacks supporting generation and retrieval of supplemental
44 [Scott Deboy <sdeboy@apache.org>, Trevor Perrin and Ben Laurie]
46 *) Add EVP support for key wrapping algorithms, to avoid problems with
47 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
48 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
49 algorithms and include tests cases.
52 *) Add functions to allocate and set the fields of an ECDSA_METHOD
54 [Douglas E. Engert, Steve Henson]
56 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
57 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
58 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
59 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
60 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
61 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
62 [Rob Stradling, Adam Langley]
64 *) New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the
65 difference in days and seconds between two tm or ASN1_TIME structures.
68 *) Add -rev test option to s_server to just reverse order of characters
69 received by client and send back to server. Also prints an abbreviated
70 summary of the connection parameters.
73 *) New option -brief for s_client and s_server to print out a brief summary
74 of connection parameters.
77 *) Add callbacks for arbitrary TLS extensions.
78 [Trevor Perrin <trevp@trevp.net> and Ben Laurie]
80 *) New option -crl_download in several openssl utilities to download CRLs
81 from CRLDP extension in certificates.
84 *) New options -CRL and -CRLform for s_client and s_server for CRLs.
87 *) New function X509_CRL_diff to generate a delta CRL from the difference
88 of two full CRLs. Add support to "crl" utility.
91 *) New functions to set lookup_crls function and to retrieve
92 X509_STORE from X509_STORE_CTX.
95 *) Print out deprecated issuer and subject unique ID fields in
99 *) Extend OCSP I/O functions so they can be used for simple general purpose
100 HTTP as well as OCSP. New wrapper function which can be used to download
101 CRLs using the OCSP API.
104 *) Delegate command line handling in s_client/s_server to SSL_CONF APIs.
107 *) SSL_CONF* functions. These provide a common framework for application
108 configuration using configuration files or command lines.
111 *) SSL/TLS tracing code. This parses out SSL/TLS records using the
112 message callback and prints the results. Needs compile time option
113 "enable-ssl-trace". New options to s_client and s_server to enable
117 *) New ctrl and macro to retrieve supported points extensions.
118 Print out extension in s_server and s_client.
121 *) New functions to retrieve certificate signature and signature
125 *) Add functions to retrieve and manipulate the raw cipherlist sent by a
129 *) New Suite B modes for TLS code. These use and enforce the requirements
130 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and
131 only use Suite B curves. The Suite B modes can be set by using the
132 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring.
135 *) New chain verification flags for Suite B levels of security. Check
136 algorithms are acceptable when flags are set in X509_verify_cert.
139 *) Make tls1_check_chain return a set of flags indicating checks passed
140 by a certificate chain. Add additional tests to handle client
141 certificates: checks for matching certificate type and issuer name
145 *) If an attempt is made to use a signature algorithm not in the peer
146 preference list abort the handshake. If client has no suitable
147 signature algorithms in response to a certificate request do not
151 *) If server EC tmp key is not in client preference list abort handshake.
154 *) Add support for certificate stores in CERT structure. This makes it
155 possible to have different stores per SSL structure or one store in
156 the parent SSL_CTX. Include distint stores for certificate chain
157 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN
158 to build and store a certificate chain in CERT structure: returing
159 an error if the chain cannot be built: this will allow applications
160 to test if a chain is correctly configured.
162 Note: if the CERT based stores are not set then the parent SSL_CTX
163 store is used to retain compatibility with existing behaviour.
167 *) New function ssl_set_client_disabled to set a ciphersuite disabled
168 mask based on the current session, check mask when sending client
169 hello and checking the requested ciphersuite.
172 *) New ctrls to retrieve and set certificate types in a certificate
173 request message. Print out received values in s_client. If certificate
174 types is not set with custom values set sensible values based on
175 supported signature algorithms.
178 *) Support for distinct client and server supported signature algorithms.
181 *) Add certificate callback. If set this is called whenever a certificate
182 is required by client or server. An application can decide which
183 certificate chain to present based on arbitrary criteria: for example
184 supported signature algorithms. Add very simple example to s_server.
185 This fixes many of the problems and restrictions of the existing client
186 certificate callback: for example you can now clear an existing
187 certificate and specify the whole chain.
190 *) Add new "valid_flags" field to CERT_PKEY structure which determines what
191 the certificate can be used for (if anything). Set valid_flags field
192 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
193 to have similar checks in it.
195 Add new "cert_flags" field to CERT structure and include a "strict mode".
196 This enforces some TLS certificate requirements (such as only permitting
197 certificate signature algorithms contained in the supported algorithms
198 extension) which some implementations ignore: this option should be used
199 with caution as it could cause interoperability issues.
202 *) Update and tidy signature algorithm extension processing. Work out
203 shared signature algorithms based on preferences and peer algorithms
204 and print them out in s_client and s_server. Abort handshake if no
205 shared signature algorithms.
208 *) Add new functions to allow customised supported signature algorithms
209 for SSL and SSL_CTX structures. Add options to s_client and s_server
213 *) New function SSL_certs_clear() to delete all references to certificates
214 from an SSL structure. Before this once a certificate had been added
215 it couldn't be removed.
218 *) Integrate hostname, email address and IP address checking with certificate
219 verification. New verify options supporting checking in opensl utility.
222 *) Fixes and wildcard matching support to hostname and email checking
223 functions. Add manual page.
224 [Florian Weimer (Red Hat Product Security Team)]
226 *) New functions to check a hostname email or IP address against a
227 certificate. Add options x509 utility to print results of checks against
231 *) Fix OCSP checking.
232 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie]
234 *) Initial experimental support for explicitly trusted non-root CAs.
235 OpenSSL still tries to build a complete chain to a root but if an
236 intermediate CA has a trust setting included that is used. The first
237 setting is used: whether to trust (e.g., -addtrust option to the x509
241 *) Add -trusted_first option which attempts to find certificates in the
242 trusted store even if an untrusted chain is also supplied.
245 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE,
246 platform support for Linux and Android.
249 *) Support for linux-x32, ILP32 environment in x86_64 framework.
252 *) RFC 5878 (TLS Authorization Extensions) support.
253 [Emilia Kasper, Adam Langley, Ben Laurie (Google)]
255 *) Experimental multi-implementation support for FIPS capable OpenSSL.
256 When in FIPS mode the approved implementations are used as normal,
257 when not in FIPS mode the internal unapproved versions are used instead.
258 This means that the FIPS capable OpenSSL isn't forced to use the
259 (often lower perfomance) FIPS implementations outside FIPS mode.
262 *) Transparently support X9.42 DH parameters when calling
263 PEM_read_bio_DHparameters. This means existing applications can handle
264 the new parameter format automatically.
267 *) Initial experimental support for X9.42 DH parameter format: mainly
268 to support use of 'q' parameter for RFC5114 parameters.
271 *) Add DH parameters from RFC5114 including test data to dhtest.
274 *) Support for automatic EC temporary key parameter selection. If enabled
275 the most preferred EC parameters are automatically used instead of
276 hardcoded fixed parameters. Now a server just has to call:
277 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
278 support ECDH and use the most appropriate parameters.
281 *) Enhance and tidy EC curve and point format TLS extension code. Use
282 static structures instead of allocation if default values are used.
283 New ctrls to set curves we wish to support and to retrieve shared curves.
284 Print out shared curves in s_server. New options to s_server and s_client
285 to set list of supported curves.
288 *) New ctrls to retrieve supported signature algorithms and
289 supported curve values as an array of NIDs. Extend openssl utility
290 to print out received values.
293 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
294 between NIDs and the more common NIST names such as "P-256". Enhance
295 ecparam utility and ECC method to recognise the NIST names for curves.
298 *) Enhance SSL/TLS certificate chain handling to support different
299 chains for each certificate instead of one chain in the parent SSL_CTX.
302 *) Support for fixed DH ciphersuite client authentication: where both
303 server and client use DH certificates with common parameters.
306 *) Support for fixed DH ciphersuites: those requiring DH server
310 Changes between 1.0.1e and 1.0.1f [6 Jan 2014]
312 *) Fix for TLS record tampering bug. A carefully crafted invalid
313 handshake could crash OpenSSL with a NULL pointer exception.
314 Thanks to Anton Johansson for reporting this issues.
317 *) Keep original DTLS digest and encryption contexts in retransmission
318 structures so we can use the previous session parameters if they need
319 to be resent. (CVE-2013-6450)
322 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
323 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
324 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
325 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
326 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
327 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
328 [Rob Stradling, Adam Langley]
330 Changes between 1.0.1d and 1.0.1e [11 Feb 2013]
332 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI
333 supporting platforms or when small records were transferred.
334 [Andy Polyakov, Steve Henson]
336 Changes between 1.0.1c and 1.0.1d [5 Feb 2013]
338 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
340 This addresses the flaw in CBC record processing discovered by
341 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
342 at: http://www.isg.rhul.ac.uk/tls/
344 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
345 Security Group at Royal Holloway, University of London
346 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
347 Emilia Käsper for the initial patch.
349 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
351 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode
352 ciphersuites which can be exploited in a denial of service attack.
353 Thanks go to and to Adam Langley <agl@chromium.org> for discovering
354 and detecting this bug and to Wolfgang Ettlinger
355 <wolfgang.ettlinger@gmail.com> for independently discovering this issue.
359 *) Return an error when checking OCSP signatures when key is NULL.
360 This fixes a DoS attack. (CVE-2013-0166)
363 *) Make openssl verify return errors.
364 [Chris Palmer <palmer@google.com> and Ben Laurie]
366 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
367 the right response is stapled. Also change SSL_get_certificate()
368 so it returns the certificate actually sent.
369 See http://rt.openssl.org/Ticket/Display.html?id=2836.
370 [Rob Stradling <rob.stradling@comodo.com>]
372 *) Fix possible deadlock when decoding public keys.
375 *) Don't use TLS 1.0 record version number in initial client hello
379 Changes between 1.0.1b and 1.0.1c [10 May 2012]
381 *) Sanity check record length before skipping explicit IV in TLS
382 1.2, 1.1 and DTLS to fix DoS attack.
384 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
385 fuzzing as a service testing platform.
389 *) Initialise tkeylen properly when encrypting CMS messages.
390 Thanks to Solar Designer of Openwall for reporting this issue.
393 *) In FIPS mode don't try to use composite ciphers as they are not
397 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
399 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
400 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
401 mean any application compiled against OpenSSL 1.0.0 headers setting
402 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
403 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
404 0x10000000L Any application which was previously compiled against
405 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
406 will need to be recompiled as a result. Letting be results in
407 inability to disable specifically TLS 1.1 and in client context,
408 in unlike event, limit maximum offered version to TLS 1.0 [see below].
411 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
412 disable just protocol X, but all protocols above X *if* there are
413 protocols *below* X still enabled. In more practical terms it means
414 that if application wants to disable TLS1.0 in favor of TLS1.1 and
415 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
416 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
420 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
422 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
423 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
424 in CRYPTO_realloc_clean.
426 Thanks to Tavis Ormandy, Google Security Team, for discovering this
427 issue and to Adam Langley <agl@chromium.org> for fixing it.
429 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
431 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
434 *) Workarounds for some broken servers that "hang" if a client hello
435 record length exceeds 255 bytes.
437 1. Do not use record version number > TLS 1.0 in initial client
438 hello: some (but not all) hanging servers will now work.
439 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
440 the number of ciphers sent in the client hello. This should be
441 set to an even number, such as 50, for example by passing:
442 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
443 Most broken servers should now work.
444 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
445 TLS 1.2 client support entirely.
448 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
451 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
453 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
454 STRING form instead of a DigestInfo.
457 *) The format used for MDC2 RSA signatures is inconsistent between EVP
458 and the RSA_sign/RSA_verify functions. This was made more apparent when
459 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
460 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
461 the correct format in RSA_verify so both forms transparently work.
464 *) Some servers which support TLS 1.0 can choke if we initially indicate
465 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
466 encrypted premaster secret. As a workaround use the maximum pemitted
467 client version in client hello, this should keep such servers happy
468 and still work with previous versions of OpenSSL.
471 *) Add support for TLS/DTLS heartbeats.
472 [Robin Seggelmann <seggelmann@fh-muenster.de>]
474 *) Add support for SCTP.
475 [Robin Seggelmann <seggelmann@fh-muenster.de>]
477 *) Improved PRNG seeding for VOS.
478 [Paul Green <Paul.Green@stratus.com>]
480 *) Extensive assembler packs updates, most notably:
482 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
483 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
484 - x86_64: bit-sliced AES implementation;
485 - ARM: NEON support, contemporary platforms optimizations;
486 - s390x: z196 support;
487 - *: GHASH and GF(2^m) multiplication implementations;
491 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
492 (removal of unnecessary code)
493 [Peter Sylvester <peter.sylvester@edelweb.fr>]
495 *) Add TLS key material exporter from RFC 5705.
498 *) Add DTLS-SRTP negotiation from RFC 5764.
501 *) Add Next Protocol Negotiation,
502 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
503 disabled with a no-npn flag to config or Configure. Code donated
505 [Adam Langley <agl@google.com> and Ben Laurie]
507 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
508 NIST-P256, NIST-P521, with constant-time single point multiplication on
509 typical inputs. Compiler support for the nonstandard type __uint128_t is
510 required to use this (present in gcc 4.4 and later, for 64-bit builds).
511 Code made available under Apache License version 2.0.
513 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
514 line to include this in your build of OpenSSL, and run "make depend" (or
515 "make update"). This enables the following EC_METHODs:
517 EC_GFp_nistp224_method()
518 EC_GFp_nistp256_method()
519 EC_GFp_nistp521_method()
521 EC_GROUP_new_by_curve_name() will automatically use these (while
522 EC_GROUP_new_curve_GFp() currently prefers the more flexible
524 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
526 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
527 all platforms. Move ssize_t definition from e_os.h to the public
528 header file e_os2.h as it now appears in public header file cms.h
531 *) New -sigopt option to the ca, req and x509 utilities. Additional
532 signature parameters can be passed using this option and in
536 *) Add RSA PSS signing function. This will generate and set the
537 appropriate AlgorithmIdentifiers for PSS based on those in the
538 corresponding EVP_MD_CTX structure. No application support yet.
541 *) Support for companion algorithm specific ASN1 signing routines.
542 New function ASN1_item_sign_ctx() signs a pre-initialised
543 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
544 the appropriate parameters.
547 *) Add new algorithm specific ASN1 verification initialisation function
548 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
549 handling will be the same no matter what EVP_PKEY_METHOD is used.
550 Add a PSS handler to support verification of PSS signatures: checked
551 against a number of sample certificates.
554 *) Add signature printing for PSS. Add PSS OIDs.
555 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
557 *) Add algorithm specific signature printing. An individual ASN1 method
558 can now print out signatures instead of the standard hex dump.
560 More complex signatures (e.g. PSS) can print out more meaningful
561 information. Include DSA version that prints out the signature
565 *) Password based recipient info support for CMS library: implementing
569 *) Split password based encryption into PBES2 and PBKDF2 functions. This
570 neatly separates the code into cipher and PBE sections and is required
571 for some algorithms that split PBES2 into separate pieces (such as
575 *) Session-handling fixes:
576 - Fix handling of connections that are resuming with a session ID,
577 but also support Session Tickets.
578 - Fix a bug that suppressed issuing of a new ticket if the client
579 presented a ticket with an expired session.
580 - Try to set the ticket lifetime hint to something reasonable.
581 - Make tickets shorter by excluding irrelevant information.
582 - On the client side, don't ignore renewed tickets.
583 [Adam Langley, Bodo Moeller (Google)]
585 *) Fix PSK session representation.
588 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
590 This work was sponsored by Intel.
593 *) Add GCM support to TLS library. Some custom code is needed to split
594 the IV between the fixed (from PRF) and explicit (from TLS record)
595 portions. This adds all GCM ciphersuites supported by RFC5288 and
596 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
597 add a special AESGCM string for GCM only.
600 *) Expand range of ctrls for AES GCM. Permit setting invocation
601 field on decrypt and retrieval of invocation field only on encrypt.
604 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
605 As required by RFC5289 these ciphersuites cannot be used if for
606 versions of TLS earlier than 1.2.
609 *) For FIPS capable OpenSSL interpret a NULL default public key method
610 as unset and return the appopriate default but do *not* set the default.
611 This means we can return the appopriate method in applications that
612 swicth between FIPS and non-FIPS modes.
615 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
616 ENGINE is used then we cannot handle that in the FIPS module so we
617 keep original code iff non-FIPS operations are allowed.
620 *) Add -attime option to openssl utilities.
621 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
623 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
626 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
627 FIPS EC methods unconditionally for now.
630 *) New build option no-ec2m to disable characteristic 2 code.
633 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
634 all cases can be covered as some introduce binary incompatibilities.
637 *) Redirect RSA operations to FIPS module including keygen,
638 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
641 *) Add similar low level API blocking to ciphers.
644 *) Low level digest APIs are not approved in FIPS mode: any attempt
645 to use these will cause a fatal error. Applications that *really* want
646 to use them can use the private_* version instead.
649 *) Redirect cipher operations to FIPS module for FIPS builds.
652 *) Redirect digest operations to FIPS module for FIPS builds.
655 *) Update build system to add "fips" flag which will link in fipscanister.o
656 for static and shared library builds embedding a signature if needed.
659 *) Output TLS supported curves in preference order instead of numerical
660 order. This is currently hardcoded for the highest order curves first.
661 This should be configurable so applications can judge speed vs strength.
664 *) Add TLS v1.2 server support for client authentication.
667 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
671 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
672 FIPS modules versions.
675 *) Add TLS v1.2 client side support for client authentication. Keep cache
676 of handshake records longer as we don't know the hash algorithm to use
677 until after the certificate request message is received.
680 *) Initial TLS v1.2 client support. Add a default signature algorithms
681 extension including all the algorithms we support. Parse new signature
682 format in client key exchange. Relax some ECC signing restrictions for
683 TLS v1.2 as indicated in RFC5246.
686 *) Add server support for TLS v1.2 signature algorithms extension. Switch
687 to new signature format when needed using client digest preference.
688 All server ciphersuites should now work correctly in TLS v1.2. No client
689 support yet and no support for client certificates.
692 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
693 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
694 ciphersuites. At present only RSA key exchange ciphersuites work with
695 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
696 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
697 and version checking.
700 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
701 with this defined it will not be affected by any changes to ssl internal
702 structures. Add several utility functions to allow openssl application
703 to work with OPENSSL_NO_SSL_INTERN defined.
707 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
709 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
712 *) Permit abbreviated handshakes when renegotiating using the function
713 SSL_renegotiate_abbreviated().
714 [Robin Seggelmann <seggelmann@fh-muenster.de>]
716 *) Add call to ENGINE_register_all_complete() to
717 ENGINE_load_builtin_engines(), so some implementations get used
718 automatically instead of needing explicit application support.
721 *) Add support for TLS key exporter as described in RFC5705.
722 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
724 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
725 a few changes are required:
727 Add SSL_OP_NO_TLSv1_1 flag.
729 Update version checking logic to handle version 1.1.
730 Add explicit IV handling (ported from DTLS code).
731 Add command line options to s_client/s_server.
734 Changes between 1.0.0j and 1.0.0k [5 Feb 2013]
736 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
738 This addresses the flaw in CBC record processing discovered by
739 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
740 at: http://www.isg.rhul.ac.uk/tls/
742 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
743 Security Group at Royal Holloway, University of London
744 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
745 Emilia Käsper for the initial patch.
747 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
749 *) Return an error when checking OCSP signatures when key is NULL.
750 This fixes a DoS attack. (CVE-2013-0166)
753 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
754 the right response is stapled. Also change SSL_get_certificate()
755 so it returns the certificate actually sent.
756 See http://rt.openssl.org/Ticket/Display.html?id=2836.
758 [Rob Stradling <rob.stradling@comodo.com>]
760 *) Fix possible deadlock when decoding public keys.
763 Changes between 1.0.0i and 1.0.0j [10 May 2012]
765 [NB: OpenSSL 1.0.0i and later 1.0.0 patch levels were released after
768 *) Sanity check record length before skipping explicit IV in DTLS
771 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
772 fuzzing as a service testing platform.
776 *) Initialise tkeylen properly when encrypting CMS messages.
777 Thanks to Solar Designer of Openwall for reporting this issue.
780 Changes between 1.0.0h and 1.0.0i [19 Apr 2012]
782 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
783 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
784 in CRYPTO_realloc_clean.
786 Thanks to Tavis Ormandy, Google Security Team, for discovering this
787 issue and to Adam Langley <agl@chromium.org> for fixing it.
789 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
791 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
793 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
794 in CMS and PKCS7 code. When RSA decryption fails use a random key for
795 content decryption and always return the same error. Note: this attack
796 needs on average 2^20 messages so it only affects automated senders. The
797 old behaviour can be reenabled in the CMS code by setting the
798 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
799 an MMA defence is not necessary.
800 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
801 this issue. (CVE-2012-0884)
804 *) Fix CVE-2011-4619: make sure we really are receiving a
805 client hello before rejecting multiple SGC restarts. Thanks to
806 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
809 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
811 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
812 Thanks to Antonio Martin, Enterprise Secure Access Research and
813 Development, Cisco Systems, Inc. for discovering this bug and
814 preparing a fix. (CVE-2012-0050)
817 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
819 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
820 of the Vaudenay padding oracle attack on CBC mode encryption
821 which enables an efficient plaintext recovery attack against
822 the OpenSSL implementation of DTLS. Their attack exploits timing
823 differences arising during decryption processing. A research
824 paper describing this attack can be found at:
825 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
826 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
827 Security Group at Royal Holloway, University of London
828 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
829 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
830 for preparing the fix. (CVE-2011-4108)
831 [Robin Seggelmann, Michael Tuexen]
833 *) Clear bytes used for block padding of SSL 3.0 records.
835 [Adam Langley (Google)]
837 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
838 Kadianakis <desnacked@gmail.com> for discovering this issue and
839 Adam Langley for preparing the fix. (CVE-2011-4619)
840 [Adam Langley (Google)]
842 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
843 [Andrey Kulikov <amdeich@gmail.com>]
845 *) Prevent malformed RFC3779 data triggering an assertion failure.
846 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
847 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
848 [Rob Austein <sra@hactrn.net>]
850 *) Improved PRNG seeding for VOS.
851 [Paul Green <Paul.Green@stratus.com>]
853 *) Fix ssl_ciph.c set-up race.
854 [Adam Langley (Google)]
856 *) Fix spurious failures in ecdsatest.c.
857 [Emilia Käsper (Google)]
859 *) Fix the BIO_f_buffer() implementation (which was mixing different
860 interpretations of the '..._len' fields).
861 [Adam Langley (Google)]
863 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
864 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
865 threads won't reuse the same blinding coefficients.
867 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
868 lock to call BN_BLINDING_invert_ex, and avoids one use of
869 BN_BLINDING_update for each BN_BLINDING structure (previously,
870 the last update always remained unused).
871 [Emilia Käsper (Google)]
873 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
874 [Bob Buckholz (Google)]
876 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
878 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
879 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
880 [Kaspar Brand <ossl@velox.ch>]
882 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
883 for multi-threaded use of ECDH. (CVE-2011-3210)
884 [Adam Langley (Google)]
886 *) Fix x509_name_ex_d2i memory leak on bad inputs.
889 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
890 signature public key algorithm by using OID xref utilities instead.
891 Before this you could only use some ECC ciphersuites with SHA1 only.
894 *) Add protection against ECDSA timing attacks as mentioned in the paper
895 by Billy Bob Brumley and Nicola Tuveri, see:
897 http://eprint.iacr.org/2011/232.pdf
899 [Billy Bob Brumley and Nicola Tuveri]
901 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
903 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
904 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
906 *) Fix bug in string printing code: if *any* escaping is enabled we must
907 escape the escape character (backslash) or the resulting string is
911 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
913 *) Disable code workaround for ancient and obsolete Netscape browsers
914 and servers: an attacker can use it in a ciphersuite downgrade attack.
915 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
918 *) Fixed J-PAKE implementation error, originally discovered by
919 Sebastien Martini, further info and confirmation from Stefan
920 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
923 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
925 *) Fix extension code to avoid race conditions which can result in a buffer
926 overrun vulnerability: resumed sessions must not be modified as they can
927 be shared by multiple threads. CVE-2010-3864
930 *) Fix WIN32 build system to correctly link an ENGINE directory into
934 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
936 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
938 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
940 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
942 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
943 context. The operation can be customised via the ctrl mechanism in
944 case ENGINEs want to include additional functionality.
947 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
950 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
951 output hashes compatible with older versions of OpenSSL.
952 [Willy Weisz <weisz@vcpc.univie.ac.at>]
954 *) Fix compression algorithm handling: if resuming a session use the
955 compression algorithm of the resumed session instead of determining
956 it from client hello again. Don't allow server to change algorithm.
959 *) Add load_crls() function to apps tidying load_certs() too. Add option
960 to verify utility to allow additional CRLs to be included.
963 *) Update OCSP request code to permit adding custom headers to the request:
964 some responders need this.
967 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
969 [Julia Lawall <julia@diku.dk>]
971 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
972 needlessly dereferenced structures, used obsolete functions and
973 didn't handle all updated verify codes correctly.
976 *) Disable MD2 in the default configuration.
979 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
980 indicate the initial BIO being pushed or popped. This makes it possible
981 to determine whether the BIO is the one explicitly called or as a result
982 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
983 it handles reference counts correctly and doesn't zero out the I/O bio
984 when it is not being explicitly popped. WARNING: applications which
985 included workarounds for the old buggy behaviour will need to be modified
986 or they could free up already freed BIOs.
989 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
990 renaming to all platforms (within the 0.9.8 branch, this was
991 done conditionally on Netware platforms to avoid a name clash).
992 [Guenter <lists@gknw.net>]
994 *) Add ECDHE and PSK support to DTLS.
995 [Michael Tuexen <tuexen@fh-muenster.de>]
997 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
1001 *) Add "missing" function EVP_MD_flags() (without this the only way to
1002 retrieve a digest flags is by accessing the structure directly. Update
1003 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
1004 or cipher is registered as in the "from" argument. Print out all
1005 registered digests in the dgst usage message instead of manually
1006 attempting to work them out.
1009 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
1010 this allows the use of compression and extensions. Change default cipher
1011 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
1012 by default unless an application cipher string requests it.
1015 *) Alter match criteria in PKCS12_parse(). It used to try to use local
1016 key ids to find matching certificates and keys but some PKCS#12 files
1017 don't follow the (somewhat unwritten) rules and this strategy fails.
1018 Now just gather all certificates together and the first private key
1019 then look for the first certificate that matches the key.
1022 *) Support use of registered digest and cipher names for dgst and cipher
1023 commands instead of having to add each one as a special case. So now
1030 openssl dgst -sha256 foo
1032 and this works for ENGINE based algorithms too.
1036 *) Update Gost ENGINE to support parameter files.
1037 [Victor B. Wagner <vitus@cryptocom.ru>]
1039 *) Support GeneralizedTime in ca utility.
1040 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
1042 *) Enhance the hash format used for certificate directory links. The new
1043 form uses the canonical encoding (meaning equivalent names will work
1044 even if they aren't identical) and uses SHA1 instead of MD5. This form
1045 is incompatible with the older format and as a result c_rehash should
1046 be used to rebuild symbolic links.
1049 *) Make PKCS#8 the default write format for private keys, replacing the
1050 traditional format. This form is standardised, more secure and doesn't
1051 include an implicit MD5 dependency.
1054 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
1055 committed to OpenSSL should pass this lot as a minimum.
1058 *) Add session ticket override functionality for use by EAP-FAST.
1059 [Jouni Malinen <j@w1.fi>]
1061 *) Modify HMAC functions to return a value. Since these can be implemented
1062 in an ENGINE errors can occur.
1065 *) Type-checked OBJ_bsearch_ex.
1068 *) Type-checked OBJ_bsearch. Also some constification necessitated
1069 by type-checking. Still to come: TXT_DB, bsearch(?),
1070 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
1074 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
1075 seconds to a tm structure directly, instead of going through OS
1076 specific date routines. This avoids any issues with OS routines such
1077 as the year 2038 bug. New *_adj() functions for ASN1 time structures
1078 and X509_time_adj_ex() to cover the extended range. The existing
1079 X509_time_adj() is still usable and will no longer have any date issues.
1082 *) Delta CRL support. New use deltas option which will attempt to locate
1083 and search any appropriate delta CRLs available.
1085 This work was sponsored by Google.
1088 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
1089 code and add additional score elements. Validate alternate CRL paths
1090 as part of the CRL checking and indicate a new error "CRL path validation
1091 error" in this case. Applications wanting additional details can use
1092 the verify callback and check the new "parent" field. If this is not
1093 NULL CRL path validation is taking place. Existing applications wont
1094 see this because it requires extended CRL support which is off by
1097 This work was sponsored by Google.
1100 *) Support for freshest CRL extension.
1102 This work was sponsored by Google.
1105 *) Initial indirect CRL support. Currently only supported in the CRLs
1106 passed directly and not via lookup. Process certificate issuer
1107 CRL entry extension and lookup CRL entries by bother issuer name
1108 and serial number. Check and process CRL issuer entry in IDP extension.
1110 This work was sponsored by Google.
1113 *) Add support for distinct certificate and CRL paths. The CRL issuer
1114 certificate is validated separately in this case. Only enabled if
1115 an extended CRL support flag is set: this flag will enable additional
1116 CRL functionality in future.
1118 This work was sponsored by Google.
1121 *) Add support for policy mappings extension.
1123 This work was sponsored by Google.
1126 *) Fixes to pathlength constraint, self issued certificate handling,
1127 policy processing to align with RFC3280 and PKITS tests.
1129 This work was sponsored by Google.
1132 *) Support for name constraints certificate extension. DN, email, DNS
1133 and URI types are currently supported.
1135 This work was sponsored by Google.
1138 *) To cater for systems that provide a pointer-based thread ID rather
1139 than numeric, deprecate the current numeric thread ID mechanism and
1140 replace it with a structure and associated callback type. This
1141 mechanism allows a numeric "hash" to be extracted from a thread ID in
1142 either case, and on platforms where pointers are larger than 'long',
1143 mixing is done to help ensure the numeric 'hash' is usable even if it
1144 can't be guaranteed unique. The default mechanism is to use "&errno"
1145 as a pointer-based thread ID to distinguish between threads.
1147 Applications that want to provide their own thread IDs should now use
1148 CRYPTO_THREADID_set_callback() to register a callback that will call
1149 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
1151 Note that ERR_remove_state() is now deprecated, because it is tied
1152 to the assumption that thread IDs are numeric. ERR_remove_state(0)
1153 to free the current thread's error state should be replaced by
1154 ERR_remove_thread_state(NULL).
1156 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
1157 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
1158 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
1159 application was previously providing a numeric thread callback that
1160 was inappropriate for distinguishing threads, then uniqueness might
1161 have been obtained with &errno that happened immediately in the
1162 intermediate development versions of OpenSSL; this is no longer the
1163 case, the numeric thread callback will now override the automatic use
1165 [Geoff Thorpe, with help from Bodo Moeller]
1167 *) Initial support for different CRL issuing certificates. This covers a
1168 simple case where the self issued certificates in the chain exist and
1169 the real CRL issuer is higher in the existing chain.
1171 This work was sponsored by Google.
1174 *) Removed effectively defunct crypto/store from the build.
1177 *) Revamp of STACK to provide stronger type-checking. Still to come:
1178 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
1179 ASN1_STRING, CONF_VALUE.
1182 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
1183 RAM on SSL connections. This option can save about 34k per idle SSL.
1186 *) Revamp of LHASH to provide stronger type-checking. Still to come:
1187 STACK, TXT_DB, bsearch, qsort.
1190 *) Initial support for Cryptographic Message Syntax (aka CMS) based
1191 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
1192 support for data, signedData, compressedData, digestedData and
1193 encryptedData, envelopedData types included. Scripts to check against
1194 RFC4134 examples draft and interop and consistency checks of many
1195 content types and variants.
1198 *) Add options to enc utility to support use of zlib compression BIO.
1201 *) Extend mk1mf to support importing of options and assembly language
1202 files from Configure script, currently only included in VC-WIN32.
1203 The assembly language rules can now optionally generate the source
1204 files from the associated perl scripts.
1207 *) Implement remaining functionality needed to support GOST ciphersuites.
1208 Interop testing has been performed using CryptoPro implementations.
1209 [Victor B. Wagner <vitus@cryptocom.ru>]
1211 *) s390x assembler pack.
1214 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
1218 *) Implement Opaque PRF Input TLS extension as specified in
1219 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
1220 official specification yet and no extension type assignment by
1221 IANA exists, this extension (for now) will have to be explicitly
1222 enabled when building OpenSSL by providing the extension number
1223 to use. For example, specify an option
1225 -DTLSEXT_TYPE_opaque_prf_input=0x9527
1227 to the "config" or "Configure" script to enable the extension,
1228 assuming extension number 0x9527 (which is a completely arbitrary
1229 and unofficial assignment based on the MD5 hash of the Internet
1230 Draft). Note that by doing so, you potentially lose
1231 interoperability with other TLS implementations since these might
1232 be using the same extension number for other purposes.
1234 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
1235 opaque PRF input value to use in the handshake. This will create
1236 an interal copy of the length-'len' string at 'src', and will
1237 return non-zero for success.
1239 To get more control and flexibility, provide a callback function
1242 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
1243 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
1247 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
1250 Callback function 'cb' will be called in handshakes, and is
1251 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
1252 Argument 'arg' is for application purposes (the value as given to
1253 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
1254 be provided to the callback function). The callback function
1255 has to return non-zero to report success: usually 1 to use opaque
1256 PRF input just if possible, or 2 to enforce use of the opaque PRF
1257 input. In the latter case, the library will abort the handshake
1258 if opaque PRF input is not successfully negotiated.
1260 Arguments 'peerinput' and 'len' given to the callback function
1261 will always be NULL and 0 in the case of a client. A server will
1262 see the client's opaque PRF input through these variables if
1263 available (NULL and 0 otherwise). Note that if the server
1264 provides an opaque PRF input, the length must be the same as the
1265 length of the client's opaque PRF input.
1267 Note that the callback function will only be called when creating
1268 a new session (session resumption can resume whatever was
1269 previously negotiated), and will not be called in SSL 2.0
1270 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1271 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1272 for applications that need to enforce opaque PRF input.
1276 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1279 [Victor B. Wagner <vitus@cryptocom.ru>]
1281 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1282 RFC4507bis. The encrypted ticket format is an encrypted encoded
1283 SSL_SESSION structure, that way new session features are automatically
1286 If a client application caches session in an SSL_SESSION structure
1287 support is transparent because tickets are now stored in the encoded
1290 The SSL_CTX structure automatically generates keys for ticket
1291 protection in servers so again support should be possible
1292 with no application modification.
1294 If a client or server wishes to disable RFC4507 support then the option
1295 SSL_OP_NO_TICKET can be set.
1297 Add a TLS extension debugging callback to allow the contents of any client
1298 or server extensions to be examined.
1300 This work was sponsored by Google.
1303 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1304 OpenSSL should now compile cleanly on gcc 4.2
1305 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1307 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1308 support including streaming MAC support: this is required for GOST
1309 ciphersuite support.
1310 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1312 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1313 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1314 to output in BER and PEM format.
1317 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1318 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1319 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1320 ENGINE support for HMAC keys which are unextractable. New -mac and
1321 -macopt options to dgst utility.
1324 *) New option -sigopt to dgst utility. Update dgst to use
1325 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1326 alternative signing paramaters such as X9.31 or PSS in the dgst
1330 *) Change ssl_cipher_apply_rule(), the internal function that does
1331 the work each time a ciphersuite string requests enabling
1332 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1333 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1334 the order of disabled ciphersuites such that those ciphersuites
1335 that most recently went from enabled to disabled not only stay
1336 in order with respect to each other, but also have higher priority
1337 than other disabled ciphersuites the next time ciphersuites are
1340 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1341 the same ciphersuites as with "HIGH" alone, but in a specific
1342 order where the PSK ciphersuites come first (since they are the
1343 most recently disabled ciphersuites when "HIGH" is parsed).
1345 Also, change ssl_create_cipher_list() (using this new
1346 funcionality) such that between otherwise identical
1347 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1351 *) Change ssl_create_cipher_list() so that it automatically
1352 arranges the ciphersuites in reasonable order before starting
1353 to process the rule string. Thus, the definition for "DEFAULT"
1354 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1355 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1356 This makes it much easier to arrive at a reasonable default order
1357 in applications for which anonymous ciphers are OK (meaning
1358 that you can't actually use DEFAULT).
1359 [Bodo Moeller; suggested by Victor Duchovni]
1361 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1362 processing) into multiple integers instead of setting
1363 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1364 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1365 (These masks as well as the individual bit definitions are hidden
1366 away into the non-exported interface ssl/ssl_locl.h, so this
1367 change to the definition of the SSL_CIPHER structure shouldn't
1368 affect applications.) This give us more bits for each of these
1369 categories, so there is no longer a need to coagulate AES128 and
1370 AES256 into a single algorithm bit, and to coagulate Camellia128
1371 and Camellia256 into a single algorithm bit, which has led to all
1374 Thus, among other things, the kludge introduced in 0.9.7m and
1375 0.9.8e for masking out AES256 independently of AES128 or masking
1376 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1378 With the change, we also introduce new ciphersuite aliases that
1379 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1383 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1384 Use the leftmost N bytes of the signature input if the input is
1385 larger than the prime q (with N being the size in bytes of q).
1388 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1389 it yet and it is largely untested.
1392 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1395 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1396 some compilers (gcc 4.2 and later) reject their use. Safestack is
1397 reimplemented. Update ASN1 to avoid use of legacy functions.
1400 *) Win32/64 targets are linked with Winsock2.
1403 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1404 to external functions. This can be used to increase CRL handling
1405 efficiency especially when CRLs are very large by (for example) storing
1406 the CRL revoked certificates in a database.
1409 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1410 new CRLs added to a directory can be used. New command line option
1411 -verify_return_error to s_client and s_server. This causes real errors
1412 to be returned by the verify callback instead of carrying on no matter
1413 what. This reflects the way a "real world" verify callback would behave.
1416 *) GOST engine, supporting several GOST algorithms and public key formats.
1417 Kindly donated by Cryptocom.
1420 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1421 partitioned by DP are handled but no indirect CRL or reason partitioning
1422 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1423 selected via a scoring technique which handles IDP and AKID in CRLs.
1426 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1427 will ultimately be used for all verify operations: this will remove the
1428 X509_STORE dependency on certificate verification and allow alternative
1429 lookup methods. X509_STORE based implementations of these two callbacks.
1432 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1433 Modify get_crl() to find a valid (unexpired) CRL if possible.
1436 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1437 this would be called X509_CRL_cmp() but that name is already used by
1438 a function that just compares CRL issuer names. Cache several CRL
1439 extensions in X509_CRL structure and cache CRLDP in X509.
1442 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1443 this maps equivalent X509_NAME structures into a consistent structure.
1444 Name comparison can then be performed rapidly using memcmp().
1447 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1451 *) Allow digests to supply their own micalg string for S/MIME type using
1452 the ctrl EVP_MD_CTRL_MICALG.
1455 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1456 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1457 ctrl. It can then customise the structure before and/or after signing
1461 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1462 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1463 to free up any added signature OIDs.
1466 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1467 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1468 digest and cipher tables. New options added to openssl utility:
1469 list-message-digest-algorithms and list-cipher-algorithms.
1472 *) Change the array representation of binary polynomials: the list
1473 of degrees of non-zero coefficients is now terminated with -1.
1474 Previously it was terminated with 0, which was also part of the
1475 value; thus, the array representation was not applicable to
1476 polynomials where t^0 has coefficient zero. This change makes
1477 the array representation useful in a more general context.
1480 *) Various modifications and fixes to SSL/TLS cipher string
1481 handling. For ECC, the code now distinguishes between fixed ECDH
1482 with RSA certificates on the one hand and with ECDSA certificates
1483 on the other hand, since these are separate ciphersuites. The
1484 unused code for Fortezza ciphersuites has been removed.
1486 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1487 (not "ECDHE"). For consistency with the code for DH
1488 certificates, use of ECDH certificates is now considered ECDH
1489 authentication, not RSA or ECDSA authentication (the latter is
1490 merely the CA's signing algorithm and not actively used in the
1493 The temporary ciphersuite alias "ECCdraft" is no longer
1494 available, and ECC ciphersuites are no longer excluded from "ALL"
1495 and "DEFAULT". The following aliases now exist for RFC 4492
1496 ciphersuites, most of these by analogy with the DH case:
1498 kECDHr - ECDH cert, signed with RSA
1499 kECDHe - ECDH cert, signed with ECDSA
1500 kECDH - ECDH cert (signed with either RSA or ECDSA)
1501 kEECDH - ephemeral ECDH
1502 ECDH - ECDH cert or ephemeral ECDH
1508 AECDH - anonymous ECDH
1509 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1513 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1514 Use correct micalg parameters depending on digest(s) in signed message.
1517 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1518 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1521 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1522 an engine to register a method. Add ENGINE lookups for methods and
1523 functional reference processing.
1526 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1527 EVP_{Sign,Verify}* which allow an application to customise the signature
1531 *) New -resign option to smime utility. This adds one or more signers
1532 to an existing PKCS#7 signedData structure. Also -md option to use an
1533 alternative message digest algorithm for signing.
1536 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1537 create PKCS7 structures containing multiple signers. Update smime
1538 application to support multiple signers.
1541 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1545 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1546 Reorganize PBE internals to lookup from a static table using NIDs,
1547 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1548 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1549 PRF which will be automatically used with PBES2.
1552 *) Replace the algorithm specific calls to generate keys in "req" with the
1556 *) Update PKCS#7 enveloped data routines to use new API. This is now
1557 supported by any public key method supporting the encrypt operation. A
1558 ctrl is added to allow the public key algorithm to examine or modify
1559 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1563 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1564 a default digest type to use. In most cases this will be SHA1 but some
1565 algorithms (such as GOST) need to specify an alternative digest. The
1566 return value indicates how strong the prefernce is 1 means optional and
1567 2 is mandatory (that is it is the only supported type). Modify
1568 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1569 use the default md. Update openssl utilities to use the default digest
1570 type for signing if it is not explicitly indicated.
1573 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1574 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1575 signing method from the key type. This effectively removes the link
1576 between digests and public key types.
1579 *) Add an OID cross reference table and utility functions. Its purpose is to
1580 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1581 rsaEncryption. This will allow some of the algorithm specific hackery
1582 needed to use the correct OID to be removed.
1585 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1586 structures for PKCS7_sign(). They are now set up by the relevant public
1590 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1593 *) Add support for key derivation (agreement) in the API, DH method and
1597 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1598 public and private key formats. As a side effect these add additional
1599 command line functionality not previously available: DSA signatures can be
1600 generated and verified using pkeyutl and DH key support and generation in
1605 [Oliver Tappe <zooey@hirschkaefer.de>]
1607 *) New make target "install_html_docs" installs HTML renditions of the
1609 [Oliver Tappe <zooey@hirschkaefer.de>]
1611 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1612 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1613 support key and parameter generation and add initial key generation
1614 functionality for RSA.
1617 *) Add functions for main EVP_PKEY_method operations. The undocumented
1618 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1619 EVP_PKEY_{encrypt,decrypt}_old.
1622 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1623 key API, doesn't do much yet.
1626 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1627 public key algorithms. New option to openssl utility:
1628 "list-public-key-algorithms" to print out info.
1631 *) Implement the Supported Elliptic Curves Extension for
1632 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1635 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1636 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1639 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1640 utilities such as rsa, dsa, dsaparam etc except they process any key
1644 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1645 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1646 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1650 *) Initial support for pluggable public key ASN1.
1651 De-spaghettify the public key ASN1 handling. Move public and private
1652 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1653 algorithm specific handling to a single module within the relevant
1654 algorithm directory. Add functions to allow (near) opaque processing
1655 of public and private key structures.
1658 *) Implement the Supported Point Formats Extension for
1659 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1662 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1663 for the psk identity [hint] and the psk callback functions to the
1664 SSL_SESSION, SSL and SSL_CTX structure.
1667 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1671 SSL_CTX_use_psk_identity_hint
1672 SSL_get_psk_identity_hint
1673 SSL_get_psk_identity
1674 SSL_use_psk_identity_hint
1676 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1678 *) Add RFC 3161 compliant time stamp request creation, response generation
1679 and response verification functionality.
1680 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1682 *) Add initial support for TLS extensions, specifically for the server_name
1683 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1684 have new members for a host name. The SSL data structure has an
1685 additional member SSL_CTX *initial_ctx so that new sessions can be
1686 stored in that context to allow for session resumption, even after the
1687 SSL has been switched to a new SSL_CTX in reaction to a client's
1688 server_name extension.
1690 New functions (subject to change):
1692 SSL_get_servername()
1693 SSL_get_servername_type()
1696 New CTRL codes and macros (subject to change):
1698 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1699 - SSL_CTX_set_tlsext_servername_callback()
1700 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1701 - SSL_CTX_set_tlsext_servername_arg()
1702 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1704 openssl s_client has a new '-servername ...' option.
1706 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1707 '-key2 ...', '-servername_fatal' (subject to change). This allows
1708 testing the HostName extension for a specific single host name ('-cert'
1709 and '-key' remain fallbacks for handshakes without HostName
1710 negotiation). If the unrecogninzed_name alert has to be sent, this by
1711 default is a warning; it becomes fatal with the '-servername_fatal'
1714 [Peter Sylvester, Remy Allais, Christophe Renou]
1716 *) Whirlpool hash implementation is added.
1719 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1720 bn(64,32). Because of instruction set limitations it doesn't have
1721 any negative impact on performance. This was done mostly in order
1722 to make it possible to share assembler modules, such as bn_mul_mont
1723 implementations, between 32- and 64-bit builds without hassle.
1726 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1727 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1731 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1732 dedicated Montgomery multiplication procedure, is introduced.
1733 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1734 "64-bit" performance on certain 32-bit targets.
1737 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1738 in SSL structures. New SSL ctrl to set maximum send fragment size.
1739 Save memory by seeting the I/O buffer sizes dynamically instead of
1740 using the maximum available value.
1743 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1744 in addition to the text details.
1747 *) Very, very preliminary EXPERIMENTAL support for printing of general
1748 ASN1 structures. This currently produces rather ugly output and doesn't
1749 handle several customised structures at all.
1752 *) Integrated support for PVK file format and some related formats such
1753 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1754 these in the 'rsa' and 'dsa' utilities.
1757 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1760 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1761 place for the (very old) "NETSCAPE" format certificates which are now
1762 handled using new ASN1 code equivalents.
1765 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1766 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1767 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1770 *) Modify CRL distribution points extension code to print out previously
1771 unsupported fields. Enhance extension setting code to allow setting of
1775 *) Add print and set support for Issuing Distribution Point CRL extension.
1778 *) Change 'Configure' script to enable Camellia by default.
1781 Changes between 0.9.8x and 0.9.8y [5 Feb 2013]
1783 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
1785 This addresses the flaw in CBC record processing discovered by
1786 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
1787 at: http://www.isg.rhul.ac.uk/tls/
1789 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1790 Security Group at Royal Holloway, University of London
1791 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
1792 Emilia Käsper for the initial patch.
1794 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
1796 *) Return an error when checking OCSP signatures when key is NULL.
1797 This fixes a DoS attack. (CVE-2013-0166)
1800 *) Return an error when checking OCSP signatures when key is NULL.
1801 This fixes a DoS attack. (CVE-2013-0166)
1804 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
1805 the right response is stapled. Also change SSL_get_certificate()
1806 so it returns the certificate actually sent.
1807 See http://rt.openssl.org/Ticket/Display.html?id=2836.
1808 (This is a backport)
1809 [Rob Stradling <rob.stradling@comodo.com>]
1811 *) Fix possible deadlock when decoding public keys.
1814 Changes between 0.9.8w and 0.9.8x [10 May 2012]
1816 *) Sanity check record length before skipping explicit IV in DTLS
1819 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
1820 fuzzing as a service testing platform.
1824 *) Initialise tkeylen properly when encrypting CMS messages.
1825 Thanks to Solar Designer of Openwall for reporting this issue.
1828 Changes between 0.9.8v and 0.9.8w [23 Apr 2012]
1830 *) The fix for CVE-2012-2110 did not take into account that the
1831 'len' argument to BUF_MEM_grow and BUF_MEM_grow_clean is an
1832 int in OpenSSL 0.9.8, making it still vulnerable. Fix by
1833 rejecting negative len parameter. (CVE-2012-2131)
1834 [Tomas Hoger <thoger@redhat.com>]
1836 Changes between 0.9.8u and 0.9.8v [19 Apr 2012]
1838 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
1839 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
1840 in CRYPTO_realloc_clean.
1842 Thanks to Tavis Ormandy, Google Security Team, for discovering this
1843 issue and to Adam Langley <agl@chromium.org> for fixing it.
1845 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
1847 Changes between 0.9.8t and 0.9.8u [12 Mar 2012]
1849 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
1850 in CMS and PKCS7 code. When RSA decryption fails use a random key for
1851 content decryption and always return the same error. Note: this attack
1852 needs on average 2^20 messages so it only affects automated senders. The
1853 old behaviour can be reenabled in the CMS code by setting the
1854 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
1855 an MMA defence is not necessary.
1856 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
1857 this issue. (CVE-2012-0884)
1860 *) Fix CVE-2011-4619: make sure we really are receiving a
1861 client hello before rejecting multiple SGC restarts. Thanks to
1862 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
1865 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1867 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1868 Thanks to Antonio Martin, Enterprise Secure Access Research and
1869 Development, Cisco Systems, Inc. for discovering this bug and
1870 preparing a fix. (CVE-2012-0050)
1873 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1875 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1876 of the Vaudenay padding oracle attack on CBC mode encryption
1877 which enables an efficient plaintext recovery attack against
1878 the OpenSSL implementation of DTLS. Their attack exploits timing
1879 differences arising during decryption processing. A research
1880 paper describing this attack can be found at:
1881 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1882 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1883 Security Group at Royal Holloway, University of London
1884 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1885 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1886 for preparing the fix. (CVE-2011-4108)
1887 [Robin Seggelmann, Michael Tuexen]
1889 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1890 [Ben Laurie, Kasper <ekasper@google.com>]
1892 *) Clear bytes used for block padding of SSL 3.0 records.
1894 [Adam Langley (Google)]
1896 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1897 Kadianakis <desnacked@gmail.com> for discovering this issue and
1898 Adam Langley for preparing the fix. (CVE-2011-4619)
1899 [Adam Langley (Google)]
1901 *) Prevent malformed RFC3779 data triggering an assertion failure.
1902 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1903 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1904 [Rob Austein <sra@hactrn.net>]
1906 *) Fix ssl_ciph.c set-up race.
1907 [Adam Langley (Google)]
1909 *) Fix spurious failures in ecdsatest.c.
1910 [Emilia Käsper (Google)]
1912 *) Fix the BIO_f_buffer() implementation (which was mixing different
1913 interpretations of the '..._len' fields).
1914 [Adam Langley (Google)]
1916 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1917 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1918 threads won't reuse the same blinding coefficients.
1920 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1921 lock to call BN_BLINDING_invert_ex, and avoids one use of
1922 BN_BLINDING_update for each BN_BLINDING structure (previously,
1923 the last update always remained unused).
1924 [Emilia Käsper (Google)]
1926 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1927 for multi-threaded use of ECDH.
1928 [Adam Langley (Google)]
1930 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1933 *) Add protection against ECDSA timing attacks as mentioned in the paper
1934 by Billy Bob Brumley and Nicola Tuveri, see:
1936 http://eprint.iacr.org/2011/232.pdf
1938 [Billy Bob Brumley and Nicola Tuveri]
1940 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1942 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1943 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1945 *) Fix bug in string printing code: if *any* escaping is enabled we must
1946 escape the escape character (backslash) or the resulting string is
1950 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1952 *) Disable code workaround for ancient and obsolete Netscape browsers
1953 and servers: an attacker can use it in a ciphersuite downgrade attack.
1954 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1957 *) Fixed J-PAKE implementation error, originally discovered by
1958 Sebastien Martini, further info and confirmation from Stefan
1959 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1962 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1964 *) Fix extension code to avoid race conditions which can result in a buffer
1965 overrun vulnerability: resumed sessions must not be modified as they can
1966 be shared by multiple threads. CVE-2010-3864
1969 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1972 *) Don't reencode certificate when calculating signature: cache and use
1973 the original encoding instead. This makes signature verification of
1974 some broken encodings work correctly.
1977 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1978 is also one of the inputs.
1979 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1981 *) Don't repeatedly append PBE algorithms to table if they already exist.
1982 Sort table on each new add. This effectively makes the table read only
1983 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1987 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1989 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1992 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1993 access or freeing data twice (CVE-2010-0742)
1994 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1996 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1997 common in certificates and some applications which only call
1998 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
2002 Reduce copying into .apps and .test in makevms.com
2003 Don't try to use blank CA certificate in CA.com
2004 Allow use of C files from original directories in maketests.com
2005 [Steven M. Schweda" <sms@antinode.info>]
2007 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
2009 *) When rejecting SSL/TLS records due to an incorrect version number, never
2010 update s->server with a new major version number. As of
2011 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
2012 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
2013 the previous behavior could result in a read attempt at NULL when
2014 receiving specific incorrect SSL/TLS records once record payload
2015 protection is active. (CVE-2010-0740)
2016 [Bodo Moeller, Adam Langley <agl@chromium.org>]
2018 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
2019 could be crashed if the relevant tables were not present (e.g. chrooted).
2020 [Tomas Hoger <thoger@redhat.com>]
2022 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
2024 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
2025 [Martin Olsson, Neel Mehta]
2027 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
2028 accommodate for stack sorting, always a write lock!).
2031 *) On some versions of WIN32 Heap32Next is very slow. This can cause
2032 excessive delays in the RAND_poll(): over a minute. As a workaround
2033 include a time check in the inner Heap32Next loop too.
2036 *) The code that handled flushing of data in SSL/TLS originally used the
2037 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
2038 the problem outlined in PR#1949. The fix suggested there however can
2039 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
2040 of Apache). So instead simplify the code to flush unconditionally.
2041 This should be fine since flushing with no data to flush is a no op.
2044 *) Handle TLS versions 2.0 and later properly and correctly use the
2045 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
2046 off ancient servers have a habit of sticking around for a while...
2049 *) Modify compression code so it frees up structures without using the
2050 ex_data callbacks. This works around a problem where some applications
2051 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
2052 restarting) then use compression (e.g. SSL with compression) later.
2053 This results in significant per-connection memory leaks and
2054 has caused some security issues including CVE-2008-1678 and
2058 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
2059 change when encrypting or decrypting.
2062 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
2063 connect and renegotiate with servers which do not support RI.
2064 Until RI is more widely deployed this option is enabled by default.
2067 *) Add "missing" ssl ctrls to clear options and mode.
2070 *) If client attempts to renegotiate and doesn't support RI respond with
2071 a no_renegotiation alert as required by RFC5746. Some renegotiating
2072 TLS clients will continue a connection gracefully when they receive
2073 the alert. Unfortunately OpenSSL mishandled this alert and would hang
2074 waiting for a server hello which it will never receive. Now we treat a
2075 received no_renegotiation alert as a fatal error. This is because
2076 applications requesting a renegotiation might well expect it to succeed
2077 and would have no code in place to handle the server denying it so the
2078 only safe thing to do is to terminate the connection.
2081 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
2082 peer supports secure renegotiation and 0 otherwise. Print out peer
2083 renegotiation support in s_client/s_server.
2086 *) Replace the highly broken and deprecated SPKAC certification method with
2087 the updated NID creation version. This should correctly handle UTF8.
2090 *) Implement RFC5746. Re-enable renegotiation but require the extension
2091 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
2092 turns out to be a bad idea. It has been replaced by
2093 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
2094 SSL_CTX_set_options(). This is really not recommended unless you
2095 know what you are doing.
2096 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
2098 *) Fixes to stateless session resumption handling. Use initial_ctx when
2099 issuing and attempting to decrypt tickets in case it has changed during
2100 servername handling. Use a non-zero length session ID when attempting
2101 stateless session resumption: this makes it possible to determine if
2102 a resumption has occurred immediately after receiving server hello
2103 (several places in OpenSSL subtly assume this) instead of later in
2107 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
2108 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
2109 fixes for a few places where the return code is not checked
2111 [Julia Lawall <julia@diku.dk>]
2113 *) Add --strict-warnings option to Configure script to include devteam
2114 warnings in other configurations.
2117 *) Add support for --libdir option and LIBDIR variable in makefiles. This
2118 makes it possible to install openssl libraries in locations which
2119 have names other than "lib", for example "/usr/lib64" which some
2121 [Steve Henson, based on patch from Jeremy Utley]
2123 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
2124 X690 8.9.12 and can produce some misleading textual output of OIDs.
2125 [Steve Henson, reported by Dan Kaminsky]
2127 *) Delete MD2 from algorithm tables. This follows the recommendation in
2128 several standards that it is not used in new applications due to
2129 several cryptographic weaknesses. For binary compatibility reasons
2130 the MD2 API is still compiled in by default.
2133 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
2137 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
2138 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
2140 [Guenter <lists@gknw.net>]
2142 *) Fix the server certificate chain building code to use X509_verify_cert(),
2143 it used to have an ad-hoc builder which was unable to cope with anything
2144 other than a simple chain.
2145 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
2147 *) Don't check self signed certificate signatures in X509_verify_cert()
2148 by default (a flag can override this): it just wastes time without
2149 adding any security. As a useful side effect self signed root CAs
2150 with non-FIPS digests are now usable in FIPS mode.
2153 *) In dtls1_process_out_of_seq_message() the check if the current message
2154 is already buffered was missing. For every new message was memory
2155 allocated, allowing an attacker to perform an denial of service attack
2156 with sending out of seq handshake messages until there is no memory
2157 left. Additionally every future messege was buffered, even if the
2158 sequence number made no sense and would be part of another handshake.
2159 So only messages with sequence numbers less than 10 in advance will be
2160 buffered. (CVE-2009-1378)
2161 [Robin Seggelmann, discovered by Daniel Mentz]
2163 *) Records are buffered if they arrive with a future epoch to be
2164 processed after finishing the corresponding handshake. There is
2165 currently no limitation to this buffer allowing an attacker to perform
2166 a DOS attack with sending records with future epochs until there is no
2167 memory left. This patch adds the pqueue_size() function to detemine
2168 the size of a buffer and limits the record buffer to 100 entries.
2170 [Robin Seggelmann, discovered by Daniel Mentz]
2172 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
2173 parent structure is freed. (CVE-2009-1379)
2176 *) Handle non-blocking I/O properly in SSL_shutdown() call.
2177 [Darryl Miles <darryl-mailinglists@netbauds.net>]
2180 [Ilya O. <vrghost@gmail.com>]
2182 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
2184 *) Disable renegotiation completely - this fixes a severe security
2185 problem (CVE-2009-3555) at the cost of breaking all
2186 renegotiation. Renegotiation can be re-enabled by setting
2187 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
2188 run-time. This is really not recommended unless you know what
2192 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
2194 *) Don't set val to NULL when freeing up structures, it is freed up by
2195 underlying code. If sizeof(void *) > sizeof(long) this can result in
2196 zeroing past the valid field. (CVE-2009-0789)
2197 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
2199 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
2200 checked correctly. This would allow some invalid signed attributes to
2201 appear to verify correctly. (CVE-2009-0591)
2202 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2204 *) Reject UniversalString and BMPString types with invalid lengths. This
2205 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
2206 a legal length. (CVE-2009-0590)
2209 *) Set S/MIME signing as the default purpose rather than setting it
2210 unconditionally. This allows applications to override it at the store
2214 *) Permit restricted recursion of ASN1 strings. This is needed in practice
2215 to handle some structures.
2218 *) Improve efficiency of mem_gets: don't search whole buffer each time
2220 [Jeremy Shapiro <jnshapir@us.ibm.com>]
2222 *) New -hex option for openssl rand.
2225 *) Print out UTF8String and NumericString when parsing ASN1.
2228 *) Support NumericString type for name components.
2231 *) Allow CC in the environment to override the automatically chosen
2232 compiler. Note that nothing is done to ensure flags work with the
2236 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
2238 *) Properly check EVP_VerifyFinal() and similar return values
2240 [Ben Laurie, Bodo Moeller, Google Security Team]
2242 *) Enable TLS extensions by default.
2245 *) Allow the CHIL engine to be loaded, whether the application is
2246 multithreaded or not. (This does not release the developer from the
2247 obligation to set up the dynamic locking callbacks.)
2248 [Sander Temme <sander@temme.net>]
2250 *) Use correct exit code if there is an error in dgst command.
2251 [Steve Henson; problem pointed out by Roland Dirlewanger]
2253 *) Tweak Configure so that you need to say "experimental-jpake" to enable
2254 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
2257 *) Add experimental JPAKE support, including demo authentication in
2258 s_client and s_server.
2261 *) Set the comparison function in v3_addr_canonize().
2262 [Rob Austein <sra@hactrn.net>]
2264 *) Add support for XMPP STARTTLS in s_client.
2265 [Philip Paeps <philip@freebsd.org>]
2267 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
2268 to ensure that even with this option, only ciphersuites in the
2269 server's preference list will be accepted. (Note that the option
2270 applies only when resuming a session, so the earlier behavior was
2271 just about the algorithm choice for symmetric cryptography.)
2274 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
2276 *) Fix NULL pointer dereference if a DTLS server received
2277 ChangeCipherSpec as first record (CVE-2009-1386).
2280 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
2281 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
2284 *) The fix in 0.9.8c that supposedly got rid of unsafe
2285 double-checked locking was incomplete for RSA blinding,
2286 addressing just one layer of what turns out to have been
2287 doubly unsafe triple-checked locking.
2289 So now fix this for real by retiring the MONT_HELPER macro
2290 in crypto/rsa/rsa_eay.c.
2292 [Bodo Moeller; problem pointed out by Marius Schilder]
2294 *) Various precautionary measures:
2296 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
2298 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
2299 (NB: This would require knowledge of the secret session ticket key
2300 to exploit, in which case you'd be SOL either way.)
2302 - Change bn_nist.c so that it will properly handle input BIGNUMs
2303 outside the expected range.
2305 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
2308 [Neel Mehta, Bodo Moeller]
2310 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
2311 the load fails. Useful for distros.
2312 [Ben Laurie and the FreeBSD team]
2314 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
2317 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
2320 *) Expand ENGINE to support engine supplied SSL client certificate functions.
2322 This work was sponsored by Logica.
2325 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
2326 keystores. Support for SSL/TLS client authentication too.
2327 Not compiled unless enable-capieng specified to Configure.
2329 This work was sponsored by Logica.
2332 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
2333 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
2334 attribute creation routines such as certifcate requests and PKCS#12
2338 Changes between 0.9.8g and 0.9.8h [28 May 2008]
2340 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
2341 handshake which could lead to a cilent crash as found using the
2342 Codenomicon TLS test suite (CVE-2008-1672)
2343 [Steve Henson, Mark Cox]
2345 *) Fix double free in TLS server name extensions which could lead to
2346 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2349 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2351 Clear the error queue to ensure that error entries left from
2352 older function calls do not interfere with the correct operation.
2353 [Lutz Jaenicke, Erik de Castro Lopo]
2355 *) Remove root CA certificates of commercial CAs:
2357 The OpenSSL project does not recommend any specific CA and does not
2358 have any policy with respect to including or excluding any CA.
2359 Therefore it does not make any sense to ship an arbitrary selection
2360 of root CA certificates with the OpenSSL software.
2363 *) RSA OAEP patches to fix two separate invalid memory reads.
2364 The first one involves inputs when 'lzero' is greater than
2365 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2366 before the beginning of from). The second one involves inputs where
2367 the 'db' section contains nothing but zeroes (there is a one-byte
2368 invalid read after the end of 'db').
2369 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2371 *) Partial backport from 0.9.9-dev:
2373 Introduce bn_mul_mont (dedicated Montgomery multiplication
2374 procedure) as a candidate for BIGNUM assembler implementation.
2375 While 0.9.9-dev uses assembler for various architectures, only
2376 x86_64 is available by default here in the 0.9.8 branch, and
2377 32-bit x86 is available through a compile-time setting.
2379 To try the 32-bit x86 assembler implementation, use Configure
2380 option "enable-montasm" (which exists only for this backport).
2382 As "enable-montasm" for 32-bit x86 disclaims code stability
2383 anyway, in this constellation we activate additional code
2384 backported from 0.9.9-dev for further performance improvements,
2385 namely BN_from_montgomery_word. (To enable this otherwise,
2386 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2388 [Andy Polyakov (backport partially by Bodo Moeller)]
2390 *) Add TLS session ticket callback. This allows an application to set
2391 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2392 values. This is useful for key rollover for example where several key
2393 sets may exist with different names.
2396 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2397 This was broken until now in 0.9.8 releases, such that the only way
2398 a registered ENGINE could be used (assuming it initialises
2399 successfully on the host) was to explicitly set it as the default
2400 for the relevant algorithms. This is in contradiction with 0.9.7
2401 behaviour and the documentation. With this fix, when an ENGINE is
2402 registered into a given algorithm's table of implementations, the
2403 'uptodate' flag is reset so that auto-discovery will be used next
2404 time a new context for that algorithm attempts to select an
2406 [Ian Lister (tweaked by Geoff Thorpe)]
2408 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2409 implemention in the following ways:
2411 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2414 Lack of BER streaming support means one pass streaming processing is
2415 only supported if data is detached: setting the streaming flag is
2416 ignored for embedded content.
2418 CMS support is disabled by default and must be explicitly enabled
2419 with the enable-cms configuration option.
2422 *) Update the GMP engine glue to do direct copies between BIGNUM and
2423 mpz_t when openssl and GMP use the same limb size. Otherwise the
2424 existing "conversion via a text string export" trick is still used.
2425 [Paul Sheer <paulsheer@gmail.com>]
2427 *) Zlib compression BIO. This is a filter BIO which compressed and
2428 uncompresses any data passed through it.
2431 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2432 RFC3394 compatible AES key wrapping.
2435 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2436 sets string data without copying. X509_ALGOR_set0() and
2437 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2438 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2439 from an X509_ATTRIBUTE structure optionally checking it occurs only
2440 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2444 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2445 to get the expected BN_FLG_CONSTTIME behavior.
2446 [Bodo Moeller (Google)]
2450 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2451 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2452 - added some more tests to do_tests.pl
2453 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2454 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2455 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2456 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2457 - various changes to netware.pl to enable gcc-cross builds on Win32
2459 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2460 - various changes to fix missing prototype warnings
2461 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2462 - added AES, WHIRLPOOL and CPUID assembler code to build files
2463 - added missing AES assembler make rules to mk1mf.pl
2464 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2465 [Guenter Knauf <eflash@gmx.net>]
2467 *) Implement certificate status request TLS extension defined in RFC3546.
2468 A client can set the appropriate parameters and receive the encoded
2469 OCSP response via a callback. A server can query the supplied parameters
2470 and set the encoded OCSP response in the callback. Add simplified examples
2471 to s_client and s_server.
2474 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2476 *) Fix various bugs:
2477 + Binary incompatibility of ssl_ctx_st structure
2478 + DTLS interoperation with non-compliant servers
2479 + Don't call get_session_cb() without proposed session
2480 + Fix ia64 assembler code
2481 [Andy Polyakov, Steve Henson]
2483 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2485 *) DTLS Handshake overhaul. There were longstanding issues with
2486 OpenSSL DTLS implementation, which were making it impossible for
2487 RFC 4347 compliant client to communicate with OpenSSL server.
2488 Unfortunately just fixing these incompatibilities would "cut off"
2489 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2490 server keeps tolerating non RFC compliant syntax. The opposite is
2491 not true, 0.9.8f client can not communicate with earlier server.
2492 This update even addresses CVE-2007-4995.
2495 *) Changes to avoid need for function casts in OpenSSL: some compilers
2496 (gcc 4.2 and later) reject their use.
2497 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2500 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2501 RFC4507bis. The encrypted ticket format is an encrypted encoded
2502 SSL_SESSION structure, that way new session features are automatically
2505 If a client application caches session in an SSL_SESSION structure
2506 support is transparent because tickets are now stored in the encoded
2509 The SSL_CTX structure automatically generates keys for ticket
2510 protection in servers so again support should be possible
2511 with no application modification.
2513 If a client or server wishes to disable RFC4507 support then the option
2514 SSL_OP_NO_TICKET can be set.
2516 Add a TLS extension debugging callback to allow the contents of any client
2517 or server extensions to be examined.
2519 This work was sponsored by Google.
2522 *) Add initial support for TLS extensions, specifically for the server_name
2523 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2524 have new members for a host name. The SSL data structure has an
2525 additional member SSL_CTX *initial_ctx so that new sessions can be
2526 stored in that context to allow for session resumption, even after the
2527 SSL has been switched to a new SSL_CTX in reaction to a client's
2528 server_name extension.
2530 New functions (subject to change):
2532 SSL_get_servername()
2533 SSL_get_servername_type()
2536 New CTRL codes and macros (subject to change):
2538 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2539 - SSL_CTX_set_tlsext_servername_callback()
2540 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2541 - SSL_CTX_set_tlsext_servername_arg()
2542 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2544 openssl s_client has a new '-servername ...' option.
2546 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2547 '-key2 ...', '-servername_fatal' (subject to change). This allows
2548 testing the HostName extension for a specific single host name ('-cert'
2549 and '-key' remain fallbacks for handshakes without HostName
2550 negotiation). If the unrecogninzed_name alert has to be sent, this by
2551 default is a warning; it becomes fatal with the '-servername_fatal'
2554 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2556 *) Add AES and SSE2 assembly language support to VC++ build.
2559 *) Mitigate attack on final subtraction in Montgomery reduction.
2562 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2563 (which previously caused an internal error).
2566 *) Squeeze another 10% out of IGE mode when in != out.
2569 *) AES IGE mode speedup.
2570 [Dean Gaudet (Google)]
2572 *) Add the Korean symmetric 128-bit cipher SEED (see
2573 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2574 add SEED ciphersuites from RFC 4162:
2576 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2577 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2578 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2579 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2581 To minimize changes between patchlevels in the OpenSSL 0.9.8
2582 series, SEED remains excluded from compilation unless OpenSSL
2583 is configured with 'enable-seed'.
2584 [KISA, Bodo Moeller]
2586 *) Mitigate branch prediction attacks, which can be practical if a
2587 single processor is shared, allowing a spy process to extract
2588 information. For detailed background information, see
2589 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2590 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2591 and Necessary Software Countermeasures"). The core of the change
2592 are new versions BN_div_no_branch() and
2593 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2594 respectively, which are slower, but avoid the security-relevant
2595 conditional branches. These are automatically called by BN_div()
2596 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2597 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2598 remove a conditional branch.
2600 BN_FLG_CONSTTIME is the new name for the previous
2601 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2602 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2603 in the exponent causes BN_mod_exp_mont() to use the alternative
2604 implementation in BN_mod_exp_mont_consttime().) The old name
2605 remains as a deprecated alias.
2607 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2608 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2609 constant-time implementations for more than just exponentiation.
2610 Here too the old name is kept as a deprecated alias.
2612 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2613 the BN_BLINDING structure gets an independent copy of the
2614 modulus. This means that the previous "BIGNUM *m" argument to
2615 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2616 essentially becomes "const BIGNUM *m", although we can't actually
2617 change this in the header file before 0.9.9. It allows
2618 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2619 enable BN_FLG_CONSTTIME.
2621 [Matthew D Wood (Intel Corp)]
2623 *) In the SSL/TLS server implementation, be strict about session ID
2624 context matching (which matters if an application uses a single
2625 external cache for different purposes). Previously,
2626 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2627 set. This did ensure strict client verification, but meant that,
2628 with applications using a single external cache for quite
2629 different requirements, clients could circumvent ciphersuite
2630 restrictions for a given session ID context by starting a session
2631 in a different context.
2634 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2635 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2636 authentication-only ciphersuites.
2639 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2640 not complete and could lead to a possible single byte overflow
2641 (CVE-2007-5135) [Ben Laurie]
2643 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2645 *) Since AES128 and AES256 (and similarly Camellia128 and
2646 Camellia256) share a single mask bit in the logic of
2647 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2648 kludge to work properly if AES128 is available and AES256 isn't
2649 (or if Camellia128 is available and Camellia256 isn't).
2652 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2653 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2654 When a point or a seed is encoded in a BIT STRING, we need to
2655 prevent the removal of trailing zero bits to get the proper DER
2656 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2657 of a NamedBitList, for which trailing 0 bits need to be removed.)
2660 *) Have SSL/TLS server implementation tolerate "mismatched" record
2661 protocol version while receiving ClientHello even if the
2662 ClientHello is fragmented. (The server can't insist on the
2663 particular protocol version it has chosen before the ServerHello
2664 message has informed the client about his choice.)
2667 *) Add RFC 3779 support.
2668 [Rob Austein for ARIN, Ben Laurie]
2670 *) Load error codes if they are not already present instead of using a
2671 static variable. This allows them to be cleanly unloaded and reloaded.
2672 Improve header file function name parsing.
2675 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2676 or CAPABILITY handshake as required by RFCs.
2679 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2681 *) Introduce limits to prevent malicious keys being able to
2682 cause a denial of service. (CVE-2006-2940)
2683 [Steve Henson, Bodo Moeller]
2685 *) Fix ASN.1 parsing of certain invalid structures that can result
2686 in a denial of service. (CVE-2006-2937) [Steve Henson]
2688 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2689 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2691 *) Fix SSL client code which could crash if connecting to a
2692 malicious SSLv2 server. (CVE-2006-4343)
2693 [Tavis Ormandy and Will Drewry, Google Security Team]
2695 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2696 match only those. Before that, "AES256-SHA" would be interpreted
2697 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2698 the same strength classification in 0.9.7h) as we currently only
2699 have a single AES bit in the ciphersuite description bitmap.
2700 That change, however, also applied to ciphersuite strings such as
2701 "RC4-MD5" that intentionally matched multiple ciphersuites --
2702 namely, SSL 2.0 ciphersuites in addition to the more common ones
2703 from SSL 3.0/TLS 1.0.
2705 So we change the selection algorithm again: Naming an explicit
2706 ciphersuite selects this one ciphersuite, and any other similar
2707 ciphersuite (same bitmap) from *other* protocol versions.
2708 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2709 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2711 Since SSL 2.0 does not have any ciphersuites for which the
2712 128/256 bit distinction would be relevant, this works for now.
2713 The proper fix will be to use different bits for AES128 and
2714 AES256, which would have avoided the problems from the beginning;
2715 however, bits are scarce, so we can only do this in a new release
2716 (not just a patchlevel) when we can change the SSL_CIPHER
2717 definition to split the single 'unsigned long mask' bitmap into
2718 multiple values to extend the available space.
2722 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2724 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2725 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2727 *) Add AES IGE and biIGE modes.
2730 *) Change the Unix randomness entropy gathering to use poll() when
2731 possible instead of select(), since the latter has some
2732 undesirable limitations.
2733 [Darryl Miles via Richard Levitte and Bodo Moeller]
2735 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2736 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2737 cannot be implicitly activated as part of, e.g., the "AES" alias.
2738 However, please upgrade to OpenSSL 0.9.9[-dev] for
2739 non-experimental use of the ECC ciphersuites to get TLS extension
2740 support, which is required for curve and point format negotiation
2741 to avoid potential handshake problems.
2744 *) Disable rogue ciphersuites:
2746 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2747 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2748 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2750 The latter two were purportedly from
2751 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2754 Also deactivate the remaining ciphersuites from
2755 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2756 unofficial, and the ID has long expired.
2759 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2760 dual-core machines) and other potential thread-safety issues.
2763 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2764 versions), which is now available for royalty-free use
2765 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2766 Also, add Camellia TLS ciphersuites from RFC 4132.
2768 To minimize changes between patchlevels in the OpenSSL 0.9.8
2769 series, Camellia remains excluded from compilation unless OpenSSL
2770 is configured with 'enable-camellia'.
2773 *) Disable the padding bug check when compression is in use. The padding
2774 bug check assumes the first packet is of even length, this is not
2775 necessarily true if compresssion is enabled and can result in false
2776 positives causing handshake failure. The actual bug test is ancient
2777 code so it is hoped that implementations will either have fixed it by
2778 now or any which still have the bug do not support compression.
2781 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2783 *) When applying a cipher rule check to see if string match is an explicit
2784 cipher suite and only match that one cipher suite if it is.
2787 *) Link in manifests for VC++ if needed.
2788 [Austin Ziegler <halostatue@gmail.com>]
2790 *) Update support for ECC-based TLS ciphersuites according to
2791 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2792 TLS extensions, which are supported starting with the 0.9.9
2793 branch, not in the OpenSSL 0.9.8 branch).
2796 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2797 opaque EVP_CIPHER_CTX handling.
2800 *) Fixes and enhancements to zlib compression code. We now only use
2801 "zlib1.dll" and use the default __cdecl calling convention on Win32
2802 to conform with the standards mentioned here:
2803 http://www.zlib.net/DLL_FAQ.txt
2804 Static zlib linking now works on Windows and the new --with-zlib-include
2805 --with-zlib-lib options to Configure can be used to supply the location
2806 of the headers and library. Gracefully handle case where zlib library
2810 *) Several fixes and enhancements to the OID generation code. The old code
2811 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2812 handle numbers larger than ULONG_MAX, truncated printing and had a
2813 non standard OBJ_obj2txt() behaviour.
2816 *) Add support for building of engines under engine/ as shared libraries
2817 under VC++ build system.
2820 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2821 Hopefully, we will not see any false combination of paths any more.
2824 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2826 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2827 (part of SSL_OP_ALL). This option used to disable the
2828 countermeasure against man-in-the-middle protocol-version
2829 rollback in the SSL 2.0 server implementation, which is a bad
2830 idea. (CVE-2005-2969)
2832 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2833 for Information Security, National Institute of Advanced Industrial
2834 Science and Technology [AIST], Japan)]
2836 *) Add two function to clear and return the verify parameter flags.
2839 *) Keep cipherlists sorted in the source instead of sorting them at
2840 runtime, thus removing the need for a lock.
2843 *) Avoid some small subgroup attacks in Diffie-Hellman.
2844 [Nick Mathewson and Ben Laurie]
2846 *) Add functions for well-known primes.
2849 *) Extended Windows CE support.
2850 [Satoshi Nakamura and Andy Polyakov]
2852 *) Initialize SSL_METHOD structures at compile time instead of during
2853 runtime, thus removing the need for a lock.
2856 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2857 attempting to decrypt each encrypted key in turn. Add support to
2861 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2863 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2866 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2869 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2870 key into the same file any more.
2873 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2876 *) Add -utf8 command line and config file option to 'ca'.
2877 [Stefan <stf@udoma.org]
2879 *) Removed the macro des_crypt(), as it seems to conflict with some
2880 libraries. Use DES_crypt().
2883 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2884 involves renaming the source and generated shared-libs for
2885 both. The engines will accept the corrected or legacy ids
2886 ('ncipher' and '4758_cca' respectively) when binding. NB,
2887 this only applies when building 'shared'.
2888 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2890 *) Add attribute functions to EVP_PKEY structure. Modify
2891 PKCS12_create() to recognize a CSP name attribute and
2892 use it. Make -CSP option work again in pkcs12 utility.
2895 *) Add new functionality to the bn blinding code:
2896 - automatic re-creation of the BN_BLINDING parameters after
2897 a fixed number of uses (currently 32)
2898 - add new function for parameter creation
2899 - introduce flags to control the update behaviour of the
2900 BN_BLINDING parameters
2901 - hide BN_BLINDING structure
2902 Add a second BN_BLINDING slot to the RSA structure to improve
2903 performance when a single RSA object is shared among several
2907 *) Add support for DTLS.
2908 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2910 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2911 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2914 *) Remove buggy and incompletet DH cert support from
2915 ssl/ssl_rsa.c and ssl/s3_both.c
2918 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2919 the apps/openssl applications.
2922 *) Compile clean with "-Wall -Wmissing-prototypes
2923 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2924 DEBUG_SAFESTACK must also be set.
2927 *) Change ./Configure so that certain algorithms can be disabled by default.
2928 The new counterpiece to "no-xxx" is "enable-xxx".
2930 The patented RC5 and MDC2 algorithms will now be disabled unless
2931 "enable-rc5" and "enable-mdc2", respectively, are specified.
2933 (IDEA remains enabled despite being patented. This is because IDEA
2934 is frequently required for interoperability, and there is no license
2935 fee for non-commercial use. As before, "no-idea" can be used to
2936 avoid this algorithm.)
2940 *) Add processing of proxy certificates (see RFC 3820). This work was
2941 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2942 EGEE (Enabling Grids for E-science in Europe).
2945 *) RC4 performance overhaul on modern architectures/implementations, such
2946 as Intel P4, IA-64 and AMD64.
2949 *) New utility extract-section.pl. This can be used specify an alternative
2950 section number in a pod file instead of having to treat each file as
2951 a separate case in Makefile. This can be done by adding two lines to the
2954 =for comment openssl_section:XXX
2956 The blank line is mandatory.
2960 *) New arguments -certform, -keyform and -pass for s_client and s_server
2961 to allow alternative format key and certificate files and passphrase
2965 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2966 update associated structures and add various utility functions.
2968 Add new policy related verify parameters, include policy checking in
2969 standard verify code. Enhance 'smime' application with extra parameters
2970 to support policy checking and print out.
2973 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2974 Nehemiah processors. These extensions support AES encryption in hardware
2975 as well as RNG (though RNG support is currently disabled).
2976 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2978 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2981 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2982 [Andy Polyakov and a number of other people]
2984 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2985 implementation contributed by IBM.
2986 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2988 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2989 exponent rather than 'unsigned long'. There is a corresponding change to
2990 the new 'rsa_keygen' element of the RSA_METHOD structure.
2991 [Jelte Jansen, Geoff Thorpe]
2993 *) Functionality for creating the initial serial number file is now
2994 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2996 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2997 number file to 1, which is bound to cause problems. To avoid
2998 the problems while respecting compatibility between different 0.9.7
2999 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
3000 CA.pl for serial number initialization. With the new release 0.9.8,
3001 we can fix the problem directly in the 'ca' utility.)
3004 *) Reduced header interdepencies by declaring more opaque objects in
3005 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
3006 give fewer recursive includes, which could break lazy source code - so
3007 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
3008 developers should define this symbol when building and using openssl to
3009 ensure they track the recommended behaviour, interfaces, [etc], but
3010 backwards-compatible behaviour prevails when this isn't defined.
3013 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
3016 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
3017 This will generate a random key of the appropriate length based on the
3018 cipher context. The EVP_CIPHER can provide its own random key generation
3019 routine to support keys of a specific form. This is used in the des and
3020 3des routines to generate a key of the correct parity. Update S/MIME
3021 code to use new functions and hence generate correct parity DES keys.
3022 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
3023 valid (weak or incorrect parity).
3026 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
3027 as looking them up. This is useful when the verified structure may contain
3028 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
3029 present unless the new PKCS7_NO_CRL flag is asserted.
3032 *) Extend ASN1 oid configuration module. It now additionally accepts the
3035 shortName = some long name, 1.2.3.4
3038 *) Reimplemented the BN_CTX implementation. There is now no more static
3039 limitation on the number of variables it can handle nor the depth of the
3040 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
3041 information can now expand as required, and rather than having a single
3042 static array of bignums, BN_CTX now uses a linked-list of such arrays
3043 allowing it to expand on demand whilst maintaining the usefulness of
3044 BN_CTX's "bundling".
3047 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
3048 to allow all RSA operations to function using a single BN_CTX.
3051 *) Preliminary support for certificate policy evaluation and checking. This
3052 is initially intended to pass the tests outlined in "Conformance Testing
3053 of Relying Party Client Certificate Path Processing Logic" v1.07.
3056 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
3057 remained unused and not that useful. A variety of other little bignum
3058 tweaks and fixes have also been made continuing on from the audit (see
3062 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
3063 associated ASN1, EVP and SSL functions and old ASN1 macros.
3066 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
3067 and this should never fail. So the return value from the use of
3068 BN_set_word() (which can fail due to needless expansion) is now deprecated;
3069 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
3072 *) BN_CTX_get() should return zero-valued bignums, providing the same
3073 initialised value as BN_new().
3074 [Geoff Thorpe, suggested by Ulf Möller]
3076 *) Support for inhibitAnyPolicy certificate extension.
3079 *) An audit of the BIGNUM code is underway, for which debugging code is
3080 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
3081 is considered valid when processing BIGNUMs, and causes execution to
3082 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
3083 further steps are taken to deliberately pollute unused data in BIGNUM
3084 structures to try and expose faulty code further on. For now, openssl will
3085 (in its default mode of operation) continue to tolerate the inconsistent
3086 forms that it has tolerated in the past, but authors and packagers should
3087 consider trying openssl and their own applications when compiled with
3088 these debugging symbols defined. It will help highlight potential bugs in
3089 their own code, and will improve the test coverage for OpenSSL itself. At
3090 some point, these tighter rules will become openssl's default to improve
3091 maintainability, though the assert()s and other overheads will remain only
3092 in debugging configurations. See bn.h for more details.
3093 [Geoff Thorpe, Nils Larsch, Ulf Möller]
3095 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
3096 that can only be obtained through BN_CTX_new() (which implicitly
3097 initialises it). The presence of this function only made it possible
3098 to overwrite an existing structure (and cause memory leaks).
3101 *) Because of the callback-based approach for implementing LHASH as a
3102 template type, lh_insert() adds opaque objects to hash-tables and
3103 lh_doall() or lh_doall_arg() are typically used with a destructor callback
3104 to clean up those corresponding objects before destroying the hash table
3105 (and losing the object pointers). So some over-zealous constifications in
3106 LHASH have been relaxed so that lh_insert() does not take (nor store) the
3107 objects as "const" and the lh_doall[_arg] callback wrappers are not
3108 prototyped to have "const" restrictions on the object pointers they are
3109 given (and so aren't required to cast them away any more).
3112 *) The tmdiff.h API was so ugly and minimal that our own timing utility
3113 (speed) prefers to use its own implementation. The two implementations
3114 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
3115 its object type properly exposed (MS_TM) instead of casting to/from "char
3116 *". This may still change yet if someone realises MS_TM and "ms_time_***"
3117 aren't necessarily the greatest nomenclatures - but this is what was used
3118 internally to the implementation so I've used that for now.
3121 *) Ensure that deprecated functions do not get compiled when
3122 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
3123 the self-tests were still using deprecated key-generation functions so
3124 these have been updated also.
3127 *) Reorganise PKCS#7 code to separate the digest location functionality
3128 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
3129 New function PKCS7_set_digest() to set the digest type for PKCS#7
3130 digestedData type. Add additional code to correctly generate the
3131 digestedData type and add support for this type in PKCS7 initialization
3135 *) New function PKCS7_set0_type_other() this initializes a PKCS7
3136 structure of type "other".
3139 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
3140 sure the loop does correctly stop and breaking ("division by zero")
3141 modulus operations are not performed. The (pre-generated) prime
3142 table crypto/bn/bn_prime.h was already correct, but it could not be
3143 re-generated on some platforms because of the "division by zero"
3144 situation in the script.
3145 [Ralf S. Engelschall]
3147 *) Update support for ECC-based TLS ciphersuites according to
3148 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
3149 SHA-1 now is only used for "small" curves (where the
3150 representation of a field element takes up to 24 bytes); for
3151 larger curves, the field element resulting from ECDH is directly
3152 used as premaster secret.
3153 [Douglas Stebila (Sun Microsystems Laboratories)]
3155 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
3156 curve secp160r1 to the tests.
3157 [Douglas Stebila (Sun Microsystems Laboratories)]
3159 *) Add the possibility to load symbols globally with DSO.
3160 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
3162 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
3163 control of the error stack.
3166 *) Add support for STORE in ENGINE.
3169 *) Add the STORE type. The intention is to provide a common interface
3170 to certificate and key stores, be they simple file-based stores, or
3171 HSM-type store, or LDAP stores, or...
3172 NOTE: The code is currently UNTESTED and isn't really used anywhere.
3175 *) Add a generic structure called OPENSSL_ITEM. This can be used to
3176 pass a list of arguments to any function as well as provide a way
3177 for a function to pass data back to the caller.
3180 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
3181 works like BUF_strdup() but can be used to duplicate a portion of
3182 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
3186 *) Add the function sk_find_ex() which works like sk_find(), but will
3187 return an index to an element even if an exact match couldn't be
3188 found. The index is guaranteed to point at the element where the
3189 searched-for key would be inserted to preserve sorting order.
3192 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
3193 takes an extra flags argument for optional functionality. Currently,
3194 the following flags are defined:
3196 OBJ_BSEARCH_VALUE_ON_NOMATCH
3197 This one gets OBJ_bsearch_ex() to return a pointer to the first
3198 element where the comparing function returns a negative or zero
3201 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
3202 This one gets OBJ_bsearch_ex() to return a pointer to the first
3203 element where the comparing function returns zero. This is useful
3204 if there are more than one element where the comparing function
3208 *) Make it possible to create self-signed certificates with 'openssl ca'
3209 in such a way that the self-signed certificate becomes part of the
3210 CA database and uses the same mechanisms for serial number generation
3211 as all other certificate signing. The new flag '-selfsign' enables
3212 this functionality. Adapt CA.sh and CA.pl.in.
3215 *) Add functionality to check the public key of a certificate request
3216 against a given private. This is useful to check that a certificate
3217 request can be signed by that key (self-signing).
3220 *) Make it possible to have multiple active certificates with the same
3221 subject in the CA index file. This is done only if the keyword
3222 'unique_subject' is set to 'no' in the main CA section (default
3223 if 'CA_default') of the configuration file. The value is saved
3224 with the database itself in a separate index attribute file,
3225 named like the index file with '.attr' appended to the name.
3228 *) Generate muti valued AVAs using '+' notation in config files for
3232 *) Support for nameConstraints certificate extension.
3235 *) Support for policyConstraints certificate extension.
3238 *) Support for policyMappings certificate extension.
3241 *) Make sure the default DSA_METHOD implementation only uses its
3242 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
3243 and change its own handlers to be NULL so as to remove unnecessary
3244 indirection. This lets alternative implementations fallback to the
3245 default implementation more easily.
3248 *) Support for directoryName in GeneralName related extensions
3252 *) Make it possible to link applications using Makefile.shared.
3253 Make that possible even when linking against static libraries!
3256 *) Support for single pass processing for S/MIME signing. This now
3257 means that S/MIME signing can be done from a pipe, in addition
3258 cleartext signing (multipart/signed type) is effectively streaming
3259 and the signed data does not need to be all held in memory.
3261 This is done with a new flag PKCS7_STREAM. When this flag is set
3262 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
3263 is done after the data is output (and digests calculated) in
3264 SMIME_write_PKCS7().
3267 *) Add full support for -rpath/-R, both in shared libraries and
3268 applications, at least on the platforms where it's known how
3272 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
3273 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
3274 will now compute a table of multiples of the generator that
3275 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
3276 faster (notably in the case of a single point multiplication,
3277 scalar * generator).
3278 [Nils Larsch, Bodo Moeller]
3280 *) IPv6 support for certificate extensions. The various extensions
3281 which use the IP:a.b.c.d can now take IPv6 addresses using the
3282 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
3286 *) Added an ENGINE that implements RSA by performing private key
3287 exponentiations with the GMP library. The conversions to and from
3288 GMP's mpz_t format aren't optimised nor are any montgomery forms
3289 cached, and on x86 it appears OpenSSL's own performance has caught up.
3290 However there are likely to be other architectures where GMP could
3291 provide a boost. This ENGINE is not built in by default, but it can be
3292 specified at Configure time and should be accompanied by the necessary
3293 linker additions, eg;
3294 ./config -DOPENSSL_USE_GMP -lgmp
3297 *) "openssl engine" will not display ENGINE/DSO load failure errors when
3298 testing availability of engines with "-t" - the old behaviour is
3299 produced by increasing the feature's verbosity with "-tt".
3302 *) ECDSA routines: under certain error conditions uninitialized BN objects
3303 could be freed. Solution: make sure initialization is performed early
3304 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
3308 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
3309 and DH_METHOD (eg. by ENGINE implementations) to override the normal
3310 software implementations. For DSA and DH, parameter generation can
3311 also be overriden by providing the appropriate method callbacks.
3314 *) Change the "progress" mechanism used in key-generation and
3315 primality testing to functions that take a new BN_GENCB pointer in
3316 place of callback/argument pairs. The new API functions have "_ex"
3317 postfixes and the older functions are reimplemented as wrappers for
3318 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
3319 declarations of the old functions to help (graceful) attempts to
3320 migrate to the new functions. Also, the new key-generation API
3321 functions operate on a caller-supplied key-structure and return
3322 success/failure rather than returning a key or NULL - this is to
3323 help make "keygen" another member function of RSA_METHOD etc.
3325 Example for using the new callback interface:
3327 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
3331 BN_GENCB_set(&my_cb, my_callback, my_arg);
3333 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
3334 /* For the meaning of a, b in calls to my_callback(), see the
3335 * documentation of the function that calls the callback.
3336 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
3337 * my_callback should return 1 if it wants BN_is_prime_ex()
3338 * to continue, or 0 to stop.
3343 *) Change the ZLIB compression method to be stateful, and make it
3344 available to TLS with the number defined in
3345 draft-ietf-tls-compression-04.txt.
3348 *) Add the ASN.1 structures and functions for CertificatePair, which
3349 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3351 CertificatePair ::= SEQUENCE {
3352 forward [0] Certificate OPTIONAL,
3353 reverse [1] Certificate OPTIONAL,
3354 -- at least one of the pair shall be present -- }
3356 Also implement the PEM functions to read and write certificate
3357 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3359 This needed to be defined, mostly for the sake of the LDAP
3360 attribute crossCertificatePair, but may prove useful elsewhere as
3364 *) Make it possible to inhibit symlinking of shared libraries in
3365 Makefile.shared, for Cygwin's sake.
3368 *) Extend the BIGNUM API by creating a function
3369 void BN_set_negative(BIGNUM *a, int neg);
3370 and a macro that behave like
3371 int BN_is_negative(const BIGNUM *a);
3373 to avoid the need to access 'a->neg' directly in applications.
3376 *) Implement fast modular reduction for pseudo-Mersenne primes
3377 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3378 EC_GROUP_new_curve_GFp() will now automatically use this
3380 [Nils Larsch <nla@trustcenter.de>]
3382 *) Add new lock type (CRYPTO_LOCK_BN).
3385 *) Change the ENGINE framework to automatically load engines
3386 dynamically from specific directories unless they could be
3387 found to already be built in or loaded. Move all the
3388 current engines except for the cryptodev one to a new
3390 The engines in engines/ are built as shared libraries if
3391 the "shared" options was given to ./Configure or ./config.
3392 Otherwise, they are inserted in libcrypto.a.
3393 /usr/local/ssl/engines is the default directory for dynamic
3394 engines, but that can be overriden at configure time through
3395 the usual use of --prefix and/or --openssldir, and at run
3396 time with the environment variable OPENSSL_ENGINES.
3397 [Geoff Thorpe and Richard Levitte]
3399 *) Add Makefile.shared, a helper makefile to build shared
3400 libraries. Addapt Makefile.org.
3403 *) Add version info to Win32 DLLs.
3404 [Peter 'Luna' Runestig" <peter@runestig.com>]
3406 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3407 can be added using this API to created arbitrary PKCS#12
3408 files while avoiding the low level API.
3410 New options to PKCS12_create(), key or cert can be NULL and
3411 will then be omitted from the output file. The encryption
3412 algorithm NIDs can be set to -1 for no encryption, the mac
3413 iteration count can be set to 0 to omit the mac.
3415 Enhance pkcs12 utility by making the -nokeys and -nocerts
3416 options work when creating a PKCS#12 file. New option -nomac
3417 to omit the mac, NONE can be set for an encryption algorithm.
3418 New code is modified to use the enhanced PKCS12_create()
3419 instead of the low level API.
3422 *) Extend ASN1 encoder to support indefinite length constructed
3423 encoding. This can output sequences tags and octet strings in
3424 this form. Modify pk7_asn1.c to support indefinite length
3425 encoding. This is experimental and needs additional code to
3426 be useful, such as an ASN1 bio and some enhanced streaming
3429 Extend template encode functionality so that tagging is passed
3430 down to the template encoder.
3433 *) Let 'openssl req' fail if an argument to '-newkey' is not
3434 recognized instead of using RSA as a default.
3437 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3438 As these are not official, they are not included in "ALL";
3439 the "ECCdraft" ciphersuite group alias can be used to select them.
3440 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3442 *) Add ECDH engine support.
3443 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3445 *) Add ECDH in new directory crypto/ecdh/.
3446 [Douglas Stebila (Sun Microsystems Laboratories)]
3448 *) Let BN_rand_range() abort with an error after 100 iterations
3449 without success (which indicates a broken PRNG).
3452 *) Change BN_mod_sqrt() so that it verifies that the input value
3453 is really the square of the return value. (Previously,
3454 BN_mod_sqrt would show GIGO behaviour.)
3457 *) Add named elliptic curves over binary fields from X9.62, SECG,
3458 and WAP/WTLS; add OIDs that were still missing.
3460 [Sheueling Chang Shantz and Douglas Stebila
3461 (Sun Microsystems Laboratories)]
3463 *) Extend the EC library for elliptic curves over binary fields
3464 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3467 EC_GF2m_simple_method
3471 EC_GROUP_new_curve_GF2m
3472 EC_GROUP_set_curve_GF2m
3473 EC_GROUP_get_curve_GF2m
3474 EC_POINT_set_affine_coordinates_GF2m
3475 EC_POINT_get_affine_coordinates_GF2m
3476 EC_POINT_set_compressed_coordinates_GF2m
3478 Point compression for binary fields is disabled by default for
3479 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3482 As binary polynomials are represented as BIGNUMs, various members
3483 of the EC_GROUP and EC_POINT data structures can be shared
3484 between the implementations for prime fields and binary fields;
3485 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3486 are essentially identical to their ..._GFp counterparts.
3487 (For simplicity, the '..._GFp' prefix has been dropped from
3488 various internal method names.)
3490 An internal 'field_div' method (similar to 'field_mul' and
3491 'field_sqr') has been added; this is used only for binary fields.
3493 [Sheueling Chang Shantz and Douglas Stebila
3494 (Sun Microsystems Laboratories)]
3496 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3497 through methods ('mul', 'precompute_mult').
3499 The generic implementations (now internally called 'ec_wNAF_mul'
3500 and 'ec_wNAF_precomputed_mult') remain the default if these
3501 methods are undefined.
3503 [Sheueling Chang Shantz and Douglas Stebila
3504 (Sun Microsystems Laboratories)]
3506 *) New function EC_GROUP_get_degree, which is defined through
3507 EC_METHOD. For curves over prime fields, this returns the bit
3508 length of the modulus.
3510 [Sheueling Chang Shantz and Douglas Stebila
3511 (Sun Microsystems Laboratories)]
3513 *) New functions EC_GROUP_dup, EC_POINT_dup.
3514 (These simply call ..._new and ..._copy).
3516 [Sheueling Chang Shantz and Douglas Stebila
3517 (Sun Microsystems Laboratories)]
3519 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3520 Polynomials are represented as BIGNUMs (where the sign bit is not
3521 used) in the following functions [macros]:
3524 BN_GF2m_sub [= BN_GF2m_add]
3525 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3526 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3527 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3529 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3530 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3531 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3532 BN_GF2m_cmp [= BN_ucmp]
3534 (Note that only the 'mod' functions are actually for fields GF(2^m).
3535 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3537 For some functions, an the irreducible polynomial defining a
3538 field can be given as an 'unsigned int[]' with strictly
3539 decreasing elements giving the indices of those bits that are set;
3540 i.e., p[] represents the polynomial
3541 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3543 p[0] > p[1] > ... > p[k] = 0.
3544 This applies to the following functions:
3549 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3550 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3552 BN_GF2m_mod_sqrt_arr
3553 BN_GF2m_mod_solve_quad_arr
3557 Conversion can be performed by the following functions:
3562 bntest.c has additional tests for binary polynomial arithmetic.
3564 Two implementations for BN_GF2m_mod_div() are available.
3565 The default algorithm simply uses BN_GF2m_mod_inv() and
3566 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3567 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3568 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3570 [Sheueling Chang Shantz and Douglas Stebila
3571 (Sun Microsystems Laboratories)]
3573 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3574 functionality is disabled at compile-time.
3575 [Douglas Stebila <douglas.stebila@sun.com>]
3577 *) Change default behaviour of 'openssl asn1parse' so that more
3578 information is visible when viewing, e.g., a certificate:
3580 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3581 mode the content of non-printable OCTET STRINGs is output in a
3582 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3583 avoid the appearance of a printable string.
3584 [Nils Larsch <nla@trustcenter.de>]
3586 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3588 EC_GROUP_set_asn1_flag()
3589 EC_GROUP_get_asn1_flag()
3590 EC_GROUP_set_point_conversion_form()
3591 EC_GROUP_get_point_conversion_form()
3592 These control ASN1 encoding details:
3593 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3594 has been set to OPENSSL_EC_NAMED_CURVE.
3595 - Points are encoded in uncompressed form by default; options for
3596 asn1_for are as for point2oct, namely
3597 POINT_CONVERSION_COMPRESSED
3598 POINT_CONVERSION_UNCOMPRESSED
3599 POINT_CONVERSION_HYBRID
3601 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3604 EC_GROUP_get0_seed()
3605 EC_GROUP_get_seed_len()
3606 This is used only for ASN1 purposes (so far).
3607 [Nils Larsch <nla@trustcenter.de>]
3609 *) Add 'field_type' member to EC_METHOD, which holds the NID
3610 of the appropriate field type OID. The new function
3611 EC_METHOD_get_field_type() returns this value.
3612 [Nils Larsch <nla@trustcenter.de>]
3617 EC_POINT_point2hex()
3618 EC_POINT_hex2point()
3619 providing useful interfaces to EC_POINT_point2oct() and
3620 EC_POINT_oct2point().
3621 [Nils Larsch <nla@trustcenter.de>]
3623 *) Change internals of the EC library so that the functions
3624 EC_GROUP_set_generator()
3625 EC_GROUP_get_generator()
3626 EC_GROUP_get_order()
3627 EC_GROUP_get_cofactor()
3628 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3629 to methods, which would lead to unnecessary code duplication when
3630 adding different types of curves.
3631 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3633 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3634 arithmetic, and such that modified wNAFs are generated
3635 (which avoid length expansion in many cases).
3638 *) Add a function EC_GROUP_check_discriminant() (defined via
3639 EC_METHOD) that verifies that the curve discriminant is non-zero.
3641 Add a function EC_GROUP_check() that makes some sanity tests
3642 on a EC_GROUP, its generator and order. This includes
3643 EC_GROUP_check_discriminant().
3644 [Nils Larsch <nla@trustcenter.de>]
3646 *) Add ECDSA in new directory crypto/ecdsa/.
3648 Add applications 'openssl ecparam' and 'openssl ecdsa'
3649 (these are based on 'openssl dsaparam' and 'openssl dsa').
3651 ECDSA support is also included in various other files across the
3652 library. Most notably,
3653 - 'openssl req' now has a '-newkey ecdsa:file' option;
3654 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3655 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3656 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3657 them suitable for ECDSA where domain parameters must be
3658 extracted before the specific public key;
3659 - ECDSA engine support has been added.
3660 [Nils Larsch <nla@trustcenter.de>]
3662 *) Include some named elliptic curves, and add OIDs from X9.62,
3663 SECG, and WAP/WTLS. Each curve can be obtained from the new
3665 EC_GROUP_new_by_curve_name(),
3666 and the list of available named curves can be obtained with
3667 EC_get_builtin_curves().
3668 Also add a 'curve_name' member to EC_GROUP objects, which can be
3670 EC_GROUP_set_curve_name()
3671 EC_GROUP_get_curve_name()
3672 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3674 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3675 was actually never needed) and in BN_mul(). The removal in BN_mul()
3676 required a small change in bn_mul_part_recursive() and the addition
3677 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3678 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3679 bn_sub_words() and bn_add_words() except they take arrays with
3683 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3685 *) Cleanse PEM buffers before freeing them since they may contain
3687 [Benjamin Bennett <ben@psc.edu>]
3689 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3690 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3691 authentication-only ciphersuites.
3694 *) Since AES128 and AES256 share a single mask bit in the logic of
3695 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3696 kludge to work properly if AES128 is available and AES256 isn't.
3699 *) Expand security boundary to match 1.1.1 module.
3702 *) Remove redundant features: hash file source, editing of test vectors
3703 modify fipsld to use external fips_premain.c signature.
3706 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3707 run algorithm test programs.
3710 *) Make algorithm test programs more tolerant of whitespace.
3713 *) Have SSL/TLS server implementation tolerate "mismatched" record
3714 protocol version while receiving ClientHello even if the
3715 ClientHello is fragmented. (The server can't insist on the
3716 particular protocol version it has chosen before the ServerHello
3717 message has informed the client about his choice.)
3720 *) Load error codes if they are not already present instead of using a
3721 static variable. This allows them to be cleanly unloaded and reloaded.
3724 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3726 *) Introduce limits to prevent malicious keys being able to
3727 cause a denial of service. (CVE-2006-2940)
3728 [Steve Henson, Bodo Moeller]
3730 *) Fix ASN.1 parsing of certain invalid structures that can result
3731 in a denial of service. (CVE-2006-2937) [Steve Henson]
3733 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3734 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3736 *) Fix SSL client code which could crash if connecting to a
3737 malicious SSLv2 server. (CVE-2006-4343)
3738 [Tavis Ormandy and Will Drewry, Google Security Team]
3740 *) Change ciphersuite string processing so that an explicit
3741 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3742 will no longer include "AES128-SHA"), and any other similar
3743 ciphersuite (same bitmap) from *other* protocol versions (so that
3744 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3745 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3746 changes from 0.9.8b and 0.9.8d.
3749 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3751 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3752 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3754 *) Change the Unix randomness entropy gathering to use poll() when
3755 possible instead of select(), since the latter has some
3756 undesirable limitations.
3757 [Darryl Miles via Richard Levitte and Bodo Moeller]
3759 *) Disable rogue ciphersuites:
3761 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3762 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3763 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3765 The latter two were purportedly from
3766 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3769 Also deactive the remaining ciphersuites from
3770 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3771 unofficial, and the ID has long expired.
3774 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3775 dual-core machines) and other potential thread-safety issues.
3778 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3780 *) Adapt fipsld and the build system to link against the validated FIPS
3781 module in FIPS mode.
3784 *) Fixes for VC++ 2005 build under Windows.
3787 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3788 from a Windows bash shell such as MSYS. It is autodetected from the
3789 "config" script when run from a VC++ environment. Modify standard VC++
3790 build to use fipscanister.o from the GNU make build.
3793 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3795 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3796 The value now differs depending on if you build for FIPS or not.
3797 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3798 safely run with a non-FIPSed libcrypto, as it may crash because of
3799 the difference induced by this change.
3802 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3804 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3805 (part of SSL_OP_ALL). This option used to disable the
3806 countermeasure against man-in-the-middle protocol-version
3807 rollback in the SSL 2.0 server implementation, which is a bad
3808 idea. (CVE-2005-2969)
3810 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3811 for Information Security, National Institute of Advanced Industrial
3812 Science and Technology [AIST], Japan)]
3814 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3815 mainly for FIPS compliance and not fully integrated at this stage.
3818 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3819 the exponentiation using a fixed-length exponent. (Otherwise,
3820 the information leaked through timing could expose the secret key
3821 after many signatures; cf. Bleichenbacher's attack on DSA with
3825 *) Make a new fixed-window mod_exp implementation the default for
3826 RSA, DSA, and DH private-key operations so that the sequence of
3827 squares and multiplies and the memory access pattern are
3828 independent of the particular secret key. This will mitigate
3829 cache-timing and potential related attacks.
3831 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3832 and this is automatically used by BN_mod_exp_mont() if the new flag
3833 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3834 will use this BN flag for private exponents unless the flag
3835 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3836 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3838 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3840 *) Change the client implementation for SSLv23_method() and
3841 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3842 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3843 (Previously, the SSL 2.0 backwards compatible Client Hello
3844 message format would be used even with SSL_OP_NO_SSLv2.)
3847 *) Add support for smime-type MIME parameter in S/MIME messages which some
3851 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3852 a threadsafe manner. Modify rsa code to use new function and add calls
3853 to dsa and dh code (which had race conditions before).
3856 *) Include the fixed error library code in the C error file definitions
3857 instead of fixing them up at runtime. This keeps the error code
3858 structures constant.
3861 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3863 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3866 *) Fixes for newer kerberos headers. NB: the casts are needed because
3867 the 'length' field is signed on one version and unsigned on another
3868 with no (?) obvious way to tell the difference, without these VC++
3869 complains. Also the "definition" of FAR (blank) is no longer included
3870 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3871 some needed definitions.
3874 *) Undo Cygwin change.
3877 *) Added support for proxy certificates according to RFC 3820.
3878 Because they may be a security thread to unaware applications,
3879 they must be explicitely allowed in run-time. See
3880 docs/HOWTO/proxy_certificates.txt for further information.
3883 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3885 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3886 server and client random values. Previously
3887 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3888 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3890 This change has negligible security impact because:
3892 1. Server and client random values still have 24 bytes of pseudo random
3895 2. Server and client random values are sent in the clear in the initial
3898 3. The master secret is derived using the premaster secret (48 bytes in
3899 size for static RSA ciphersuites) as well as client server and random
3902 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3905 [Stephen Henson, reported by UK NISCC]
3907 *) Use Windows randomness collection on Cygwin.
3910 *) Fix hang in EGD/PRNGD query when communication socket is closed
3911 prematurely by EGD/PRNGD.
3912 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3914 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3917 *) Back-port of selected performance improvements from development
3918 branch, as well as improved support for PowerPC platforms.
3921 *) Add lots of checks for memory allocation failure, error codes to indicate
3922 failure and freeing up memory if a failure occurs.
3923 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3925 *) Add new -passin argument to dgst.
3928 *) Perform some character comparisons of different types in X509_NAME_cmp:
3929 this is needed for some certificates that reencode DNs into UTF8Strings
3930 (in violation of RFC3280) and can't or wont issue name rollover
3934 *) Make an explicit check during certificate validation to see that
3935 the CA setting in each certificate on the chain is correct. As a
3936 side effect always do the following basic checks on extensions,
3937 not just when there's an associated purpose to the check:
3939 - if there is an unhandled critical extension (unless the user
3940 has chosen to ignore this fault)
3941 - if the path length has been exceeded (if one is set at all)
3942 - that certain extensions fit the associated purpose (if one has
3946 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3948 *) Avoid a race condition when CRLs are checked in a multi threaded
3949 environment. This would happen due to the reordering of the revoked
3950 entries during signature checking and serial number lookup. Now the
3951 encoding is cached and the serial number sort performed under a lock.
3952 Add new STACK function sk_is_sorted().
3955 *) Add Delta CRL to the extension code.
3958 *) Various fixes to s3_pkt.c so alerts are sent properly.
3959 [David Holmes <d.holmes@f5.com>]
3961 *) Reduce the chances of duplicate issuer name and serial numbers (in
3962 violation of RFC3280) using the OpenSSL certificate creation utilities.
3963 This is done by creating a random 64 bit value for the initial serial
3964 number when a serial number file is created or when a self signed
3965 certificate is created using 'openssl req -x509'. The initial serial
3966 number file is created using 'openssl x509 -next_serial' in CA.pl
3967 rather than being initialized to 1.
3970 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3972 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3973 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3974 [Joe Orton, Steve Henson]
3976 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3978 [Joe Orton, Steve Henson]
3980 *) Make it possible to have multiple active certificates with the same
3981 subject in the CA index file. This is done only if the keyword
3982 'unique_subject' is set to 'no' in the main CA section (default
3983 if 'CA_default') of the configuration file. The value is saved
3984 with the database itself in a separate index attribute file,
3985 named like the index file with '.attr' appended to the name.
3988 *) X509 verify fixes. Disable broken certificate workarounds when
3989 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3990 keyUsage extension present. Don't accept CRLs with unhandled critical
3991 extensions: since verify currently doesn't process CRL extensions this
3992 rejects a CRL with *any* critical extensions. Add new verify error codes
3996 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3997 A clarification of RFC2560 will require the use of OCTET STRINGs and
3998 some implementations cannot handle the current raw format. Since OpenSSL
3999 copies and compares OCSP nonces as opaque blobs without any attempt at
4000 parsing them this should not create any compatibility issues.
4003 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
4004 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
4005 this HMAC (and other) operations are several times slower than OpenSSL
4009 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
4010 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4012 *) Use the correct content when signing type "other".
4015 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
4017 *) Fix various bugs revealed by running the NISCC test suite:
4019 Stop out of bounds reads in the ASN1 code when presented with
4020 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4022 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
4024 If verify callback ignores invalid public key errors don't try to check
4025 certificate signature with the NULL public key.
4029 *) New -ignore_err option in ocsp application to stop the server
4030 exiting on the first error in a request.
4033 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4034 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4038 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4039 extra data after the compression methods not only for TLS 1.0
4040 but also for SSL 3.0 (as required by the specification).
4041 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4043 *) Change X509_certificate_type() to mark the key as exported/exportable
4044 when it's 512 *bits* long, not 512 bytes.
4047 *) Change AES_cbc_encrypt() so it outputs exact multiple of
4048 blocks during encryption.
4051 *) Various fixes to base64 BIO and non blocking I/O. On write
4052 flushes were not handled properly if the BIO retried. On read
4053 data was not being buffered properly and had various logic bugs.
4054 This also affects blocking I/O when the data being decoded is a
4058 *) Various S/MIME bugfixes and compatibility changes:
4059 output correct application/pkcs7 MIME type if
4060 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
4061 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
4062 of files as .eml work). Correctly handle very long lines in MIME
4066 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
4068 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4069 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4070 a protocol version number mismatch like a decryption error
4071 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4074 *) Turn on RSA blinding by default in the default implementation
4075 to avoid a timing attack. Applications that don't want it can call
4076 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4077 They would be ill-advised to do so in most cases.
4078 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4080 *) Change RSA blinding code so that it works when the PRNG is not
4081 seeded (in this case, the secret RSA exponent is abused as
4082 an unpredictable seed -- if it is not unpredictable, there
4083 is no point in blinding anyway). Make RSA blinding thread-safe
4084 by remembering the creator's thread ID in rsa->blinding and
4085 having all other threads use local one-time blinding factors
4086 (this requires more computation than sharing rsa->blinding, but
4087 avoids excessive locking; and if an RSA object is not shared
4088 between threads, blinding will still be very fast).
4091 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
4092 ENGINE as defaults for all supported algorithms irrespective of
4093 the 'flags' parameter. 'flags' is now honoured, so applications
4094 should make sure they are passing it correctly.
4097 *) Target "mingw" now allows native Windows code to be generated in
4098 the Cygwin environment as well as with the MinGW compiler.
4101 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
4103 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4104 via timing by performing a MAC computation even if incorrrect
4105 block cipher padding has been found. This is a countermeasure
4106 against active attacks where the attacker has to distinguish
4107 between bad padding and a MAC verification error. (CVE-2003-0078)
4109 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4110 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4111 Martin Vuagnoux (EPFL, Ilion)]
4113 *) Make the no-err option work as intended. The intention with no-err
4114 is not to have the whole error stack handling routines removed from
4115 libcrypto, it's only intended to remove all the function name and
4116 reason texts, thereby removing some of the footprint that may not
4117 be interesting if those errors aren't displayed anyway.
4119 NOTE: it's still possible for any application or module to have it's
4120 own set of error texts inserted. The routines are there, just not
4121 used by default when no-err is given.
4124 *) Add support for FreeBSD on IA64.
4125 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
4127 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
4128 Kerberos function mit_des_cbc_cksum(). Before this change,
4129 the value returned by DES_cbc_cksum() was like the one from
4130 mit_des_cbc_cksum(), except the bytes were swapped.
4131 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
4133 *) Allow an application to disable the automatic SSL chain building.
4134 Before this a rather primitive chain build was always performed in
4135 ssl3_output_cert_chain(): an application had no way to send the
4136 correct chain if the automatic operation produced an incorrect result.
4138 Now the chain builder is disabled if either:
4140 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
4142 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
4144 The reasoning behind this is that an application would not want the
4145 auto chain building to take place if extra chain certificates are
4146 present and it might also want a means of sending no additional
4147 certificates (for example the chain has two certificates and the
4151 *) Add the possibility to build without the ENGINE framework.
4152 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4154 *) Under Win32 gmtime() can return NULL: check return value in
4155 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
4158 *) DSA routines: under certain error conditions uninitialized BN objects
4159 could be freed. Solution: make sure initialization is performed early
4160 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
4161 Nils Larsch <nla@trustcenter.de> via PR#459)
4164 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
4165 checked on reconnect on the client side, therefore session resumption
4166 could still fail with a "ssl session id is different" error. This
4167 behaviour is masked when SSL_OP_ALL is used due to
4168 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
4169 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4170 followup to PR #377.
4173 *) IA-32 assembler support enhancements: unified ELF targets, support
4174 for SCO/Caldera platforms, fix for Cygwin shared build.
4177 *) Add support for FreeBSD on sparc64. As a consequence, support for
4178 FreeBSD on non-x86 processors is separate from x86 processors on
4179 the config script, much like the NetBSD support.
4180 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
4182 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
4184 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
4187 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
4188 code (06) was taken as the first octet of the session ID and the last
4189 octet was ignored consequently. As a result SSLv2 client side session
4190 caching could not have worked due to the session ID mismatch between
4192 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4196 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
4197 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
4201 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
4202 seems that in spite of existing for more than a year, many application
4203 author have done nothing to provide the necessary callbacks, which
4204 means that this particular engine will not work properly anywhere.
4205 This is a very unfortunate situation which forces us, in the name
4206 of usability, to give the hw_ncipher.c a static lock, which is part
4208 NOTE: This is for the 0.9.7 series ONLY. This hack will never
4209 appear in 0.9.8 or later. We EXPECT application authors to have
4210 dealt properly with this when 0.9.8 is released (unless we actually
4211 make such changes in the libcrypto locking code that changes will
4212 have to be made anyway).
4215 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
4216 octets have been read, EOF or an error occurs. Without this change
4217 some truncated ASN1 structures will not produce an error.
4220 *) Disable Heimdal support, since it hasn't been fully implemented.
4221 Still give the possibility to force the use of Heimdal, but with
4222 warnings and a request that patches get sent to openssl-dev.
4225 *) Add the VC-CE target, introduce the WINCE sysname, and add
4226 INSTALL.WCE and appropriate conditionals to make it build.
4227 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4229 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
4230 cygssl-x.y.z.dll, where x, y and z are the major, minor and
4231 edit numbers of the version.
4232 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4234 *) Introduce safe string copy and catenation functions
4235 (BUF_strlcpy() and BUF_strlcat()).
4236 [Ben Laurie (CHATS) and Richard Levitte]
4238 *) Avoid using fixed-size buffers for one-line DNs.
4239 [Ben Laurie (CHATS)]
4241 *) Add BUF_MEM_grow_clean() to avoid information leakage when
4242 resizing buffers containing secrets, and use where appropriate.
4243 [Ben Laurie (CHATS)]
4245 *) Avoid using fixed size buffers for configuration file location.
4246 [Ben Laurie (CHATS)]
4248 *) Avoid filename truncation for various CA files.
4249 [Ben Laurie (CHATS)]
4251 *) Use sizeof in preference to magic numbers.
4252 [Ben Laurie (CHATS)]
4254 *) Avoid filename truncation in cert requests.
4255 [Ben Laurie (CHATS)]
4257 *) Add assertions to check for (supposedly impossible) buffer
4259 [Ben Laurie (CHATS)]
4261 *) Don't cache truncated DNS entries in the local cache (this could
4262 potentially lead to a spoofing attack).
4263 [Ben Laurie (CHATS)]
4265 *) Fix various buffers to be large enough for hex/decimal
4266 representations in a platform independent manner.
4267 [Ben Laurie (CHATS)]
4269 *) Add CRYPTO_realloc_clean() to avoid information leakage when
4270 resizing buffers containing secrets, and use where appropriate.
4271 [Ben Laurie (CHATS)]
4273 *) Add BIO_indent() to avoid much slightly worrying code to do
4275 [Ben Laurie (CHATS)]
4277 *) Convert sprintf()/BIO_puts() to BIO_printf().
4278 [Ben Laurie (CHATS)]
4280 *) buffer_gets() could terminate with the buffer only half
4282 [Ben Laurie (CHATS)]
4284 *) Add assertions to prevent user-supplied crypto functions from
4285 overflowing internal buffers by having large block sizes, etc.
4286 [Ben Laurie (CHATS)]
4288 *) New OPENSSL_assert() macro (similar to assert(), but enabled
4290 [Ben Laurie (CHATS)]
4292 *) Eliminate unused copy of key in RC4.
4293 [Ben Laurie (CHATS)]
4295 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
4296 [Ben Laurie (CHATS)]
4298 *) Fix off-by-one error in EGD path.
4299 [Ben Laurie (CHATS)]
4301 *) If RANDFILE path is too long, ignore instead of truncating.
4302 [Ben Laurie (CHATS)]
4304 *) Eliminate unused and incorrectly sized X.509 structure
4306 [Ben Laurie (CHATS)]
4308 *) Eliminate unused and dangerous function knumber().
4309 [Ben Laurie (CHATS)]
4311 *) Eliminate unused and dangerous structure, KSSL_ERR.
4312 [Ben Laurie (CHATS)]
4314 *) Protect against overlong session ID context length in an encoded
4315 session object. Since these are local, this does not appear to be
4317 [Ben Laurie (CHATS)]
4319 *) Change from security patch (see 0.9.6e below) that did not affect
4320 the 0.9.6 release series:
4322 Remote buffer overflow in SSL3 protocol - an attacker could
4323 supply an oversized master key in Kerberos-enabled versions.
4325 [Ben Laurie (CHATS)]
4327 *) Change the SSL kerb5 codes to match RFC 2712.
4330 *) Make -nameopt work fully for req and add -reqopt switch.
4331 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
4333 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
4334 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
4336 *) Make sure tests can be performed even if the corresponding algorithms
4337 have been removed entirely. This was also the last step to make
4338 OpenSSL compilable with DJGPP under all reasonable conditions.
4339 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
4341 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4342 to allow version independent disabling of normally unselected ciphers,
4343 which may be activated as a side-effect of selecting a single cipher.
4345 (E.g., cipher list string "RSA" enables ciphersuites that are left
4346 out of "ALL" because they do not provide symmetric encryption.
4347 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4348 [Lutz Jaenicke, Bodo Moeller]
4350 *) Add appropriate support for separate platform-dependent build
4351 directories. The recommended way to make a platform-dependent
4352 build directory is the following (tested on Linux), maybe with
4355 # Place yourself outside of the OpenSSL source tree. In
4356 # this example, the environment variable OPENSSL_SOURCE
4357 # is assumed to contain the absolute OpenSSL source directory.
4358 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4359 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4360 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4361 mkdir -p `dirname $F`
4362 ln -s $OPENSSL_SOURCE/$F $F
4365 To be absolutely sure not to disturb the source tree, a "make clean"
4366 is a good thing. If it isn't successfull, don't worry about it,
4367 it probably means the source directory is very clean.
4370 *) Make sure any ENGINE control commands make local copies of string
4371 pointers passed to them whenever necessary. Otherwise it is possible
4372 the caller may have overwritten (or deallocated) the original string
4373 data when a later ENGINE operation tries to use the stored values.
4374 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4376 *) Improve diagnostics in file reading and command-line digests.
4377 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4379 *) Add AES modes CFB and OFB to the object database. Correct an
4380 error in AES-CFB decryption.
4383 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4384 allows existing EVP_CIPHER_CTX structures to be reused after
4385 calling EVP_*Final(). This behaviour is used by encryption
4386 BIOs and some applications. This has the side effect that
4387 applications must explicitly clean up cipher contexts with
4388 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4391 *) Check the values of dna and dnb in bn_mul_recursive before calling
4392 bn_mul_comba (a non zero value means the a or b arrays do not contain
4393 n2 elements) and fallback to bn_mul_normal if either is not zero.
4396 *) Fix escaping of non-ASCII characters when using the -subj option
4397 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4400 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4401 form for "surname", serialNumber has no short form.
4402 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4403 therefore remove "mail" short name for "internet 7".
4404 The OID for unique identifiers in X509 certificates is
4405 x500UniqueIdentifier, not uniqueIdentifier.
4406 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4409 *) Add an "init" command to the ENGINE config module and auto initialize
4410 ENGINEs. Without any "init" command the ENGINE will be initialized
4411 after all ctrl commands have been executed on it. If init=1 the
4412 ENGINE is initailized at that point (ctrls before that point are run
4413 on the uninitialized ENGINE and after on the initialized one). If
4414 init=0 then the ENGINE will not be iniatialized at all.
4417 *) Fix the 'app_verify_callback' interface so that the user-defined
4418 argument is actually passed to the callback: In the
4419 SSL_CTX_set_cert_verify_callback() prototype, the callback
4420 declaration has been changed from
4423 int (*cb)(X509_STORE_CTX *,void *);
4424 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4425 i=s->ctx->app_verify_callback(&ctx)
4426 has been changed into
4427 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4429 To update applications using SSL_CTX_set_cert_verify_callback(),
4430 a dummy argument can be added to their callback functions.
4431 [D. K. Smetters <smetters@parc.xerox.com>]
4433 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4434 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4436 *) Add and OPENSSL_LOAD_CONF define which will cause
4437 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4438 This allows older applications to transparently support certain
4439 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4440 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4441 load the config file and OPENSSL_add_all_algorithms_conf() which will
4442 always load it have also been added.
4445 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4446 Adjust NIDs and EVP layer.
4447 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4449 *) Config modules support in openssl utility.
4451 Most commands now load modules from the config file,
4452 though in a few (such as version) this isn't done
4453 because it couldn't be used for anything.
4455 In the case of ca and req the config file used is
4456 the same as the utility itself: that is the -config
4457 command line option can be used to specify an
4461 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4462 use "openssl_conf" if filename is NULL use default openssl config file.
4465 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4466 config section name. Add a new flag to tolerate a missing config file
4467 and move code to CONF_modules_load_file().
4470 *) Support for crypto accelerator cards from Accelerated Encryption
4471 Processing, www.aep.ie. (Use engine 'aep')
4472 The support was copied from 0.9.6c [engine] and adapted/corrected
4473 to work with the new engine framework.
4474 [AEP Inc. and Richard Levitte]
4476 *) Support for SureWare crypto accelerator cards from Baltimore
4477 Technologies. (Use engine 'sureware')
4478 The support was copied from 0.9.6c [engine] and adapted
4479 to work with the new engine framework.
4482 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4483 make the newer ENGINE framework commands for the CHIL engine work.
4484 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4486 *) Make it possible to produce shared libraries on ReliantUNIX.
4487 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4489 *) Add the configuration target debug-linux-ppro.
4490 Make 'openssl rsa' use the general key loading routines
4491 implemented in apps.c, and make those routines able to
4492 handle the key format FORMAT_NETSCAPE and the variant
4494 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4496 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4497 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4499 *) Add -keyform to rsautl, and document -engine.
4500 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4502 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4503 BIO_R_NO_SUCH_FILE error code rather than the generic
4504 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4507 *) Add new functions
4509 ERR_peek_last_error_line
4510 ERR_peek_last_error_line_data.
4511 These are similar to
4514 ERR_peek_error_line_data,
4515 but report on the latest error recorded rather than the first one
4516 still in the error queue.
4517 [Ben Laurie, Bodo Moeller]
4519 *) default_algorithms option in ENGINE config module. This allows things
4521 default_algorithms = ALL
4522 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4525 *) Prelminary ENGINE config module.
4528 *) New experimental application configuration code.
4531 *) Change the AES code to follow the same name structure as all other
4532 symmetric ciphers, and behave the same way. Move everything to
4533 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4534 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4536 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4537 [Ben Laurie and Theo de Raadt]
4539 *) Add option to output public keys in req command.
4540 [Massimiliano Pala madwolf@openca.org]
4542 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4543 (up to about 10% better than before for P-192 and P-224).
4546 *) New functions/macros
4548 SSL_CTX_set_msg_callback(ctx, cb)
4549 SSL_CTX_set_msg_callback_arg(ctx, arg)
4550 SSL_set_msg_callback(ssl, cb)
4551 SSL_set_msg_callback_arg(ssl, arg)
4553 to request calling a callback function
4555 void cb(int write_p, int version, int content_type,
4556 const void *buf, size_t len, SSL *ssl, void *arg)
4558 whenever a protocol message has been completely received
4559 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4560 protocol version according to which the SSL library interprets
4561 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4562 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4563 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4564 specification (change_cipher_spec(20), alert(21), handshake(22)).
4565 'buf' and 'len' point to the actual message, 'ssl' to the
4566 SSL object, and 'arg' is the application-defined value set by
4567 SSL[_CTX]_set_msg_callback_arg().
4569 'openssl s_client' and 'openssl s_server' have new '-msg' options
4570 to enable a callback that displays all protocol messages.
4573 *) Change the shared library support so shared libraries are built as
4574 soon as the corresponding static library is finished, and thereby get
4575 openssl and the test programs linked against the shared library.
4576 This still only happens when the keyword "shard" has been given to
4577 the configuration scripts.
4579 NOTE: shared library support is still an experimental thing, and
4580 backward binary compatibility is still not guaranteed.
4581 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4583 *) Add support for Subject Information Access extension.
4584 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4586 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4587 additional bytes when new memory had to be allocated, not just
4588 when reusing an existing buffer.
4591 *) New command line and configuration option 'utf8' for the req command.
4592 This allows field values to be specified as UTF8 strings.
4595 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4596 runs for the former and machine-readable output for the latter.
4599 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4600 of the e-mail address in the DN (i.e., it will go into a certificate
4601 extension only). The new configuration file option 'email_in_dn = no'
4602 has the same effect.
4603 [Massimiliano Pala madwolf@openca.org]
4605 *) Change all functions with names starting with des_ to be starting
4606 with DES_ instead. Add wrappers that are compatible with libdes,
4607 but are named _ossl_old_des_*. Finally, add macros that map the
4608 des_* symbols to the corresponding _ossl_old_des_* if libdes
4609 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4610 desired, the des_* symbols will be mapped to DES_*, with one
4613 Since we provide two compatibility mappings, the user needs to
4614 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4615 compatibility is desired. The default (i.e., when that macro
4616 isn't defined) is OpenSSL 0.9.6c compatibility.
4618 There are also macros that enable and disable the support of old
4619 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4620 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4621 are defined, the default will apply: to support the old des routines.
4623 In either case, one must include openssl/des.h to get the correct
4624 definitions. Do not try to just include openssl/des_old.h, that
4627 NOTE: This is a major break of an old API into a new one. Software
4628 authors are encouraged to switch to the DES_ style functions. Some
4629 time in the future, des_old.h and the libdes compatibility functions
4630 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4631 default), and then completely removed.
4634 *) Test for certificates which contain unsupported critical extensions.
4635 If such a certificate is found during a verify operation it is
4636 rejected by default: this behaviour can be overridden by either
4637 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4638 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4639 X509_supported_extension() has also been added which returns 1 if a
4640 particular extension is supported.
4643 *) Modify the behaviour of EVP cipher functions in similar way to digests
4644 to retain compatibility with existing code.
4647 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4648 compatibility with existing code. In particular the 'ctx' parameter does
4649 not have to be to be initialized before the call to EVP_DigestInit() and
4650 it is tidied up after a call to EVP_DigestFinal(). New function
4651 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4652 EVP_MD_CTX_copy() changed to not require the destination to be
4653 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4654 requires the destination to be valid.
4656 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4657 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4660 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4661 so that complete 'Handshake' protocol structures are kept in memory
4662 instead of overwriting 'msg_type' and 'length' with 'body' data.
4665 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4666 [Massimo Santin via Richard Levitte]
4668 *) Major restructuring to the underlying ENGINE code. This includes
4669 reduction of linker bloat, separation of pure "ENGINE" manipulation
4670 (initialisation, etc) from functionality dealing with implementations
4671 of specific crypto iterfaces. This change also introduces integrated
4672 support for symmetric ciphers and digest implementations - so ENGINEs
4673 can now accelerate these by providing EVP_CIPHER and EVP_MD
4674 implementations of their own. This is detailed in crypto/engine/README
4675 as it couldn't be adequately described here. However, there are a few
4676 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4677 were changed in the original introduction of ENGINE code have now
4678 reverted back - the hooking from this code to ENGINE is now a good
4679 deal more passive and at run-time, operations deal directly with
4680 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4681 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4682 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4683 they were not being used by the framework as there is no concept of a
4684 BIGNUM_METHOD and they could not be generalised to the new
4685 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4686 ENGINE_cpy() has been removed as it cannot be consistently defined in
4690 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4693 *) Change mkdef.pl to sort symbols that get the same entry number,
4694 and make sure the automatically generated functions ERR_load_*
4695 become part of libeay.num as well.
4698 *) New function SSL_renegotiate_pending(). This returns true once
4699 renegotiation has been requested (either SSL_renegotiate() call
4700 or HelloRequest/ClientHello receveived from the peer) and becomes
4701 false once a handshake has been completed.
4702 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4703 sends a HelloRequest, but does not ensure that a handshake takes
4704 place. SSL_renegotiate_pending() is useful for checking if the
4705 client has followed the request.)
4708 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4709 By default, clients may request session resumption even during
4710 renegotiation (if session ID contexts permit); with this option,
4711 session resumption is possible only in the first handshake.
4713 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4714 more bits available for options that should not be part of
4715 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4718 *) Add some demos for certificate and certificate request creation.
4721 *) Make maximum certificate chain size accepted from the peer application
4722 settable (SSL*_get/set_max_cert_list()), as proposed by
4723 "Douglas E. Engert" <deengert@anl.gov>.
4726 *) Add support for shared libraries for Unixware-7
4727 (Boyd Lynn Gerber <gerberb@zenez.com>).
4730 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4731 be done prior to destruction. Use this to unload error strings from
4732 ENGINEs that load their own error strings. NB: This adds two new API
4733 functions to "get" and "set" this destroy handler in an ENGINE.
4736 *) Alter all existing ENGINE implementations (except "openssl" and
4737 "openbsd") to dynamically instantiate their own error strings. This
4738 makes them more flexible to be built both as statically-linked ENGINEs
4739 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4740 Also, add stub code to each that makes building them as self-contained
4741 shared-libraries easier (see README.ENGINE).
4744 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4745 implementations into applications that are completely implemented in
4746 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4747 commands that can be used to configure what shared-library to load and
4748 to control aspects of the way it is handled. Also, made an update to
4749 the README.ENGINE file that brings its information up-to-date and
4750 provides some information and instructions on the "dynamic" ENGINE
4751 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4754 *) Make it possible to unload ranges of ERR strings with a new
4755 "ERR_unload_strings" function.
4758 *) Add a copy() function to EVP_MD.
4761 *) Make EVP_MD routines take a context pointer instead of just the
4762 md_data void pointer.
4765 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4766 that the digest can only process a single chunk of data
4767 (typically because it is provided by a piece of
4768 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4769 is only going to provide a single chunk of data, and hence the
4770 framework needn't accumulate the data for oneshot drivers.
4773 *) As with "ERR", make it possible to replace the underlying "ex_data"
4774 functions. This change also alters the storage and management of global
4775 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4776 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4777 index counters. The API functions that use this state have been changed
4778 to take a "class_index" rather than pointers to the class's local STACK
4779 and counter, and there is now an API function to dynamically create new
4780 classes. This centralisation allows us to (a) plug a lot of the
4781 thread-safety problems that existed, and (b) makes it possible to clean
4782 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4783 such data would previously have always leaked in application code and
4784 workarounds were in place to make the memory debugging turn a blind eye
4785 to it. Application code that doesn't use this new function will still
4786 leak as before, but their memory debugging output will announce it now
4787 rather than letting it slide.
4789 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4790 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4791 has a return value to indicate success or failure.
4794 *) Make it possible to replace the underlying "ERR" functions such that the
4795 global state (2 LHASH tables and 2 locks) is only used by the "default"
4796 implementation. This change also adds two functions to "get" and "set"
4797 the implementation prior to it being automatically set the first time
4798 any other ERR function takes place. Ie. an application can call "get",
4799 pass the return value to a module it has just loaded, and that module
4800 can call its own "set" function using that value. This means the
4801 module's "ERR" operations will use (and modify) the error state in the
4802 application and not in its own statically linked copy of OpenSSL code.
4805 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4806 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4807 the operation, and provides a more encapsulated way for external code
4808 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4809 to use these functions rather than manually incrementing the counts.
4811 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4814 *) Add EVP test program.
4817 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4820 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4821 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4822 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4823 These allow a CRL to be built without having to access X509_CRL fields
4824 directly. Modify 'ca' application to use new functions.
4827 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4828 bug workarounds. Rollback attack detection is a security feature.
4829 The problem will only arise on OpenSSL servers when TLSv1 is not
4830 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4831 Software authors not wanting to support TLSv1 will have special reasons
4832 for their choice and can explicitly enable this option.
4833 [Bodo Moeller, Lutz Jaenicke]
4835 *) Rationalise EVP so it can be extended: don't include a union of
4836 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4837 (similar to those existing for EVP_CIPHER_CTX).
4842 EVP_MD_CTX_init(&md); /* new function call */
4843 EVP_DigestInit(&md, EVP_sha1());
4844 EVP_DigestUpdate(&md, in, len);
4845 EVP_DigestFinal(&md, out, NULL);
4846 EVP_MD_CTX_cleanup(&md); /* new function call */
4850 *) Make DES key schedule conform to the usual scheme, as well as
4851 correcting its structure. This means that calls to DES functions
4852 now have to pass a pointer to a des_key_schedule instead of a
4853 plain des_key_schedule (which was actually always a pointer
4856 des_key_schedule ks;
4858 des_set_key_checked(..., &ks);
4859 des_ncbc_encrypt(..., &ks, ...);
4861 (Note that a later change renames 'des_...' into 'DES_...'.)
4864 *) Initial reduction of linker bloat: the use of some functions, such as
4865 PEM causes large amounts of unused functions to be linked in due to
4866 poor organisation. For example pem_all.c contains every PEM function
4867 which has a knock on effect of linking in large amounts of (unused)
4868 ASN1 code. Grouping together similar functions and splitting unrelated
4869 functions prevents this.
4872 *) Cleanup of EVP macros.
4875 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4876 correct _ecb suffix.
4879 *) Add initial OCSP responder support to ocsp application. The
4880 revocation information is handled using the text based index
4881 use by the ca application. The responder can either handle
4882 requests generated internally, supplied in files (for example
4883 via a CGI script) or using an internal minimal server.
4886 *) Add configuration choices to get zlib compression for TLS.
4889 *) Changes to Kerberos SSL for RFC 2712 compliance:
4890 1. Implemented real KerberosWrapper, instead of just using
4891 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4892 2. Implemented optional authenticator field of KerberosWrapper.
4894 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4895 and authenticator structs; see crypto/krb5/.
4897 Generalized Kerberos calls to support multiple Kerberos libraries.
4898 [Vern Staats <staatsvr@asc.hpc.mil>,
4899 Jeffrey Altman <jaltman@columbia.edu>
4900 via Richard Levitte]
4902 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4903 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4904 values for each of the key sizes rather than having just
4905 parameters (and 'speed' generating keys each time).
4908 *) Speed up EVP routines.
4911 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4912 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4913 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4914 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4916 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4917 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4918 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4921 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4923 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4926 *) Added the OS2-EMX target.
4927 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4929 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4930 to support NCONF routines in extension code. New function CONF_set_nconf()
4931 to allow functions which take an NCONF to also handle the old LHASH
4932 structure: this means that the old CONF compatible routines can be
4933 retained (in particular wrt extensions) without having to duplicate the
4934 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4937 *) Enhance the general user interface with mechanisms for inner control
4938 and with possibilities to have yes/no kind of prompts.
4941 *) Change all calls to low level digest routines in the library and
4942 applications to use EVP. Add missing calls to HMAC_cleanup() and
4943 don't assume HMAC_CTX can be copied using memcpy().
4944 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4946 *) Add the possibility to control engines through control names but with
4947 arbitrary arguments instead of just a string.
4948 Change the key loaders to take a UI_METHOD instead of a callback
4949 function pointer. NOTE: this breaks binary compatibility with earlier
4950 versions of OpenSSL [engine].
4951 Adapt the nCipher code for these new conditions and add a card insertion
4955 *) Enhance the general user interface with mechanisms to better support
4956 dialog box interfaces, application-defined prompts, the possibility
4957 to use defaults (for example default passwords from somewhere else)
4958 and interrupts/cancellations.
4961 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4962 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4965 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4966 tidy up some unnecessarily weird code in 'sk_new()').
4967 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4969 *) Change the key loading routines for ENGINEs to use the same kind
4970 callback (pem_password_cb) as all other routines that need this
4974 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4975 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4976 than this minimum value is recommended.
4979 *) New random seeder for OpenVMS, using the system process statistics
4980 that are easily reachable.
4983 *) Windows apparently can't transparently handle global
4984 variables defined in DLLs. Initialisations such as:
4986 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4988 wont compile. This is used by the any applications that need to
4989 declare their own ASN1 modules. This was fixed by adding the option
4990 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4991 needed for static libraries under Win32.
4994 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4995 setting of purpose and trust fields. New X509_STORE trust and
4996 purpose functions and tidy up setting in other SSL functions.
4999 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
5000 structure. These are inherited by X509_STORE_CTX when it is
5001 initialised. This allows various defaults to be set in the
5002 X509_STORE structure (such as flags for CRL checking and custom
5003 purpose or trust settings) for functions which only use X509_STORE_CTX
5004 internally such as S/MIME.
5006 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
5007 trust settings if they are not set in X509_STORE. This allows X509_STORE
5008 purposes and trust (in S/MIME for example) to override any set by default.
5010 Add command line options for CRL checking to smime, s_client and s_server
5014 *) Initial CRL based revocation checking. If the CRL checking flag(s)
5015 are set then the CRL is looked up in the X509_STORE structure and
5016 its validity and signature checked, then if the certificate is found
5017 in the CRL the verify fails with a revoked error.
5019 Various new CRL related callbacks added to X509_STORE_CTX structure.
5021 Command line options added to 'verify' application to support this.
5023 This needs some additional work, such as being able to handle multiple
5024 CRLs with different times, extension based lookup (rather than just
5025 by subject name) and ultimately more complete V2 CRL extension
5029 *) Add a general user interface API (crypto/ui/). This is designed
5030 to replace things like des_read_password and friends (backward
5031 compatibility functions using this new API are provided).
5032 The purpose is to remove prompting functions from the DES code
5033 section as well as provide for prompting through dialog boxes in
5034 a window system and the like.
5037 *) Add "ex_data" support to ENGINE so implementations can add state at a
5038 per-structure level rather than having to store it globally.
5041 *) Make it possible for ENGINE structures to be copied when retrieved by
5042 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
5043 This causes the "original" ENGINE structure to act like a template,
5044 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
5045 operational state can be localised to each ENGINE structure, despite the
5046 fact they all share the same "methods". New ENGINE structures returned in
5047 this case have no functional references and the return value is the single
5048 structural reference. This matches the single structural reference returned
5049 by ENGINE_by_id() normally, when it is incremented on the pre-existing
5053 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
5054 needs to match any other type at all we need to manually clear the
5058 *) Changes to the "openssl engine" utility to include;
5059 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
5060 about an ENGINE's available control commands.
5061 - executing control commands from command line arguments using the
5062 '-pre' and '-post' switches. '-post' is only used if '-t' is
5063 specified and the ENGINE is successfully initialised. The syntax for
5064 the individual commands are colon-separated, for example;
5065 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
5068 *) New dynamic control command support for ENGINEs. ENGINEs can now
5069 declare their own commands (numbers), names (strings), descriptions,
5070 and input types for run-time discovery by calling applications. A
5071 subset of these commands are implicitly classed as "executable"
5072 depending on their input type, and only these can be invoked through
5073 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
5074 can be based on user input, config files, etc). The distinction is
5075 that "executable" commands cannot return anything other than a boolean
5076 result and can only support numeric or string input, whereas some
5077 discoverable commands may only be for direct use through
5078 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
5079 pointers, or other custom uses. The "executable" commands are to
5080 support parameterisations of ENGINE behaviour that can be
5081 unambiguously defined by ENGINEs and used consistently across any
5082 OpenSSL-based application. Commands have been added to all the
5083 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
5084 control over shared-library paths without source code alterations.
5087 *) Changed all ENGINE implementations to dynamically allocate their
5088 ENGINEs rather than declaring them statically. Apart from this being
5089 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
5090 this also allows the implementations to compile without using the
5091 internal engine_int.h header.
5094 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
5095 'const' value. Any code that should be able to modify a RAND_METHOD
5096 should already have non-const pointers to it (ie. they should only
5097 modify their own ones).
5100 *) Made a variety of little tweaks to the ENGINE code.
5101 - "atalla" and "ubsec" string definitions were moved from header files
5102 to C code. "nuron" string definitions were placed in variables
5103 rather than hard-coded - allowing parameterisation of these values
5104 later on via ctrl() commands.
5105 - Removed unused "#if 0"'d code.
5106 - Fixed engine list iteration code so it uses ENGINE_free() to release
5107 structural references.
5108 - Constified the RAND_METHOD element of ENGINE structures.
5109 - Constified various get/set functions as appropriate and added
5110 missing functions (including a catch-all ENGINE_cpy that duplicates
5111 all ENGINE values onto a new ENGINE except reference counts/state).
5112 - Removed NULL parameter checks in get/set functions. Setting a method
5113 or function to NULL is a way of cancelling out a previously set
5114 value. Passing a NULL ENGINE parameter is just plain stupid anyway
5115 and doesn't justify the extra error symbols and code.
5116 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
5117 flags from engine_int.h to engine.h.
5118 - Changed prototypes for ENGINE handler functions (init(), finish(),
5119 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
5122 *) Implement binary inversion algorithm for BN_mod_inverse in addition
5123 to the algorithm using long division. The binary algorithm can be
5124 used only if the modulus is odd. On 32-bit systems, it is faster
5125 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
5126 roughly 5-15% for 256-bit moduli), so we use it only for moduli
5127 up to 450 bits. In 64-bit environments, the binary algorithm
5128 appears to be advantageous for much longer moduli; here we use it
5129 for moduli up to 2048 bits.
5132 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
5133 could not support the combine flag in choice fields.
5136 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
5137 extensions from a certificate request to the certificate.
5140 *) Allow multiple 'certopt' and 'nameopt' options to be separated
5141 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
5142 file: this allows the display of the certificate about to be
5143 signed to be customised, to allow certain fields to be included
5144 or excluded and extension details. The old system didn't display
5145 multicharacter strings properly, omitted fields not in the policy
5146 and couldn't display additional details such as extensions.
5149 *) Function EC_POINTs_mul for multiple scalar multiplication
5150 of an arbitrary number of elliptic curve points
5151 \sum scalars[i]*points[i],
5152 optionally including the generator defined for the EC_GROUP:
5153 scalar*generator + \sum scalars[i]*points[i].
5155 EC_POINT_mul is a simple wrapper function for the typical case
5156 that the point list has just one item (besides the optional
5160 *) First EC_METHODs for curves over GF(p):
5162 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
5163 operations and provides various method functions that can also
5164 operate with faster implementations of modular arithmetic.
5166 EC_GFp_mont_method() reuses most functions that are part of
5167 EC_GFp_simple_method, but uses Montgomery arithmetic.
5169 [Bodo Moeller; point addition and point doubling
5170 implementation directly derived from source code provided by
5171 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
5173 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
5174 crypto/ec/ec_lib.c):
5176 Curves are EC_GROUP objects (with an optional group generator)
5177 based on EC_METHODs that are built into the library.
5179 Points are EC_POINT objects based on EC_GROUP objects.
5181 Most of the framework would be able to handle curves over arbitrary
5182 finite fields, but as there are no obvious types for fields other
5183 than GF(p), some functions are limited to that for now.
5186 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
5187 that the file contains a complete HTTP response.
5190 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
5191 change the def and num file printf format specifier from "%-40sXXX"
5192 to "%-39s XXX". The latter will always guarantee a space after the
5193 field while the former will cause them to run together if the field
5194 is 40 of more characters long.
5197 *) Constify the cipher and digest 'method' functions and structures
5198 and modify related functions to take constant EVP_MD and EVP_CIPHER
5202 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
5203 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
5206 *) Modify EVP_Digest*() routines so they now return values. Although the
5207 internal software routines can never fail additional hardware versions
5211 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
5213 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
5214 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
5217 ERR_R_NESTED_ASN1_ERROR
5219 ERR_R_MISSING_ASN1_EOS
5220 were 4 .. 9, conflicting with
5221 ERR_LIB_RSA (= ERR_R_RSA_LIB)
5223 ERR_LIB_PEM (= ERR_R_PEM_LIB).
5224 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
5226 Add new error code 'ERR_R_INTERNAL_ERROR'.
5229 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
5233 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
5234 sets the subject name for a new request or supersedes the
5235 subject name in a given request. Formats that can be parsed are
5236 'CN=Some Name, OU=myOU, C=IT'
5238 'CN=Some Name/OU=myOU/C=IT'.
5240 Add options '-batch' and '-verbose' to 'openssl req'.
5241 [Massimiliano Pala <madwolf@hackmasters.net>]
5243 *) Introduce the possibility to access global variables through
5244 functions on platform were that's the best way to handle exporting
5245 global variables in shared libraries. To enable this functionality,
5246 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
5247 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
5248 is normally done by Configure or something similar).
5250 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
5251 in the source file (foo.c) like this:
5253 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
5254 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
5256 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
5257 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
5259 OPENSSL_DECLARE_GLOBAL(int,foo);
5260 #define foo OPENSSL_GLOBAL_REF(foo)
5261 OPENSSL_DECLARE_GLOBAL(double,bar);
5262 #define bar OPENSSL_GLOBAL_REF(bar)
5264 The #defines are very important, and therefore so is including the
5265 header file everywhere where the defined globals are used.
5267 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
5268 of ASN.1 items, but that structure is a bit different.
5270 The largest change is in util/mkdef.pl which has been enhanced with
5271 better and easier to understand logic to choose which symbols should
5272 go into the Windows .def files as well as a number of fixes and code
5273 cleanup (among others, algorithm keywords are now sorted
5274 lexicographically to avoid constant rewrites).
5277 *) In BN_div() keep a copy of the sign of 'num' before writing the
5278 result to 'rm' because if rm==num the value will be overwritten
5279 and produce the wrong result if 'num' is negative: this caused
5280 problems with BN_mod() and BN_nnmod().
5283 *) Function OCSP_request_verify(). This checks the signature on an
5284 OCSP request and verifies the signer certificate. The signer
5285 certificate is just checked for a generic purpose and OCSP request
5289 *) Add OCSP_check_validity() function to check the validity of OCSP
5290 responses. OCSP responses are prepared in real time and may only
5291 be a few seconds old. Simply checking that the current time lies
5292 between thisUpdate and nextUpdate max reject otherwise valid responses
5293 caused by either OCSP responder or client clock inaccuracy. Instead
5294 we allow thisUpdate and nextUpdate to fall within a certain period of
5295 the current time. The age of the response can also optionally be
5296 checked. Two new options -validity_period and -status_age added to
5300 *) If signature or public key algorithm is unrecognized print out its
5301 OID rather that just UNKNOWN.
5304 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
5305 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
5306 ID to be generated from the issuer certificate alone which can then be
5307 passed to OCSP_id_issuer_cmp().
5310 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
5311 ASN1 modules to export functions returning ASN1_ITEM pointers
5312 instead of the ASN1_ITEM structures themselves. This adds several
5313 new macros which allow the underlying ASN1 function/structure to
5314 be accessed transparently. As a result code should not use ASN1_ITEM
5315 references directly (such as &X509_it) but instead use the relevant
5316 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
5317 use of the new ASN1 code on platforms where exporting structures
5318 is problematical (for example in shared libraries) but exporting
5319 functions returning pointers to structures is not.
5322 *) Add support for overriding the generation of SSL/TLS session IDs.
5323 These callbacks can be registered either in an SSL_CTX or per SSL.
5324 The purpose of this is to allow applications to control, if they wish,
5325 the arbitrary values chosen for use as session IDs, particularly as it
5326 can be useful for session caching in multiple-server environments. A
5327 command-line switch for testing this (and any client code that wishes
5328 to use such a feature) has been added to "s_server".
5329 [Geoff Thorpe, Lutz Jaenicke]
5331 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
5332 of the form '#if defined(...) || defined(...) || ...' and
5333 '#if !defined(...) && !defined(...) && ...'. This also avoids
5334 the growing number of special cases it was previously handling.
5337 *) Make all configuration macros available for application by making
5338 sure they are available in opensslconf.h, by giving them names starting
5339 with "OPENSSL_" to avoid conflicts with other packages and by making
5340 sure e_os2.h will cover all platform-specific cases together with
5342 Additionally, it is now possible to define configuration/platform-
5343 specific names (called "system identities"). In the C code, these
5344 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
5345 macro with the name beginning with "OPENSSL_SYS_", which is determined
5346 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
5350 *) New option -set_serial to 'req' and 'x509' this allows the serial
5351 number to use to be specified on the command line. Previously self
5352 signed certificates were hard coded with serial number 0 and the
5353 CA options of 'x509' had to use a serial number in a file which was
5357 *) New options to 'ca' utility to support V2 CRL entry extensions.
5358 Currently CRL reason, invalidity date and hold instruction are
5359 supported. Add new CRL extensions to V3 code and some new objects.
5362 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5363 disable standard block padding (aka PKCS#5 padding) in the EVP
5364 API, which was previously mandatory. This means that the data is
5365 not padded in any way and so the total length much be a multiple
5366 of the block size, otherwise an error occurs.
5369 *) Initial (incomplete) OCSP SSL support.
5372 *) New function OCSP_parse_url(). This splits up a URL into its host,
5373 port and path components: primarily to parse OCSP URLs. New -url
5374 option to ocsp utility.
5377 *) New nonce behavior. The return value of OCSP_check_nonce() now
5378 reflects the various checks performed. Applications can decide
5379 whether to tolerate certain situations such as an absent nonce
5380 in a response when one was present in a request: the ocsp application
5381 just prints out a warning. New function OCSP_add1_basic_nonce()
5382 this is to allow responders to include a nonce in a response even if
5383 the request is nonce-less.
5386 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5387 skipped when using openssl x509 multiple times on a single input file,
5388 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5391 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5392 set string type: to handle setting ASN1_TIME structures. Fix ca
5393 utility to correctly initialize revocation date of CRLs.
5396 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5397 the clients preferred ciphersuites and rather use its own preferences.
5398 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5399 Internet Explorer by ensuring unchanged hash method during stepup.
5400 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5403 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5404 to aes and add a new 'exist' option to print out symbols that don't
5408 *) Additional options to ocsp utility to allow flags to be set and
5409 additional certificates supplied.
5412 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5413 OCSP client a number of certificate to only verify the response
5417 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5418 handle the new API. Currently only ECB, CBC modes supported. Add new
5421 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5422 Encryption Standard (AES) Ciphersuites for Transport Layer
5423 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5424 not enabled by default and were not part of the "ALL" ciphersuite
5425 alias because they were not yet official; they could be
5426 explicitly requested by specifying the "AESdraft" ciphersuite
5427 group alias. In the final release of OpenSSL 0.9.7, the group
5428 alias is called "AES" and is part of "ALL".)
5429 [Ben Laurie, Steve Henson, Bodo Moeller]
5431 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5432 request to response.
5435 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5436 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5437 extract information from a certificate request. OCSP_response_create()
5438 creates a response and optionally adds a basic response structure.
5439 OCSP_basic_add1_status() adds a complete single response to a basic
5440 response and returns the OCSP_SINGLERESP structure just added (to allow
5441 extensions to be included for example). OCSP_basic_add1_cert() adds a
5442 certificate to a basic response and OCSP_basic_sign() signs a basic
5443 response with various flags. New helper functions ASN1_TIME_check()
5444 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5445 (converts ASN1_TIME to GeneralizedTime).
5448 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5449 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5450 structure from a certificate. X509_pubkey_digest() digests the public_key
5451 contents: this is used in various key identifiers.
5454 *) Make sk_sort() tolerate a NULL argument.
5455 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5457 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5458 passed by the function are trusted implicitly. If any of them signed the
5459 response then it is assumed to be valid and is not verified.
5462 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5463 to data. This was previously part of the PKCS7 ASN1 code. This
5464 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5465 [Steve Henson, reported by Kenneth R. Robinette
5466 <support@securenetterm.com>]
5468 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5469 routines: without these tracing memory leaks is very painful.
5470 Fix leaks in PKCS12 and PKCS7 routines.
5473 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5474 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5475 effectively meant GeneralizedTime would never be used. Now it
5476 is initialised to -1 but X509_time_adj() now has to check the value
5477 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5478 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5479 [Steve Henson, reported by Kenneth R. Robinette
5480 <support@securenetterm.com>]
5482 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5483 result in a zero length in the ASN1_INTEGER structure which was
5484 not consistent with the structure when d2i_ASN1_INTEGER() was used
5485 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5486 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5487 where it did not print out a minus for negative ASN1_INTEGER.
5490 *) Add summary printout to ocsp utility. The various functions which
5491 convert status values to strings have been renamed to:
5492 OCSP_response_status_str(), OCSP_cert_status_str() and
5493 OCSP_crl_reason_str() and are no longer static. New options
5494 to verify nonce values and to disable verification. OCSP response
5495 printout format cleaned up.
5498 *) Add additional OCSP certificate checks. These are those specified
5499 in RFC2560. This consists of two separate checks: the CA of the
5500 certificate being checked must either be the OCSP signer certificate
5501 or the issuer of the OCSP signer certificate. In the latter case the
5502 OCSP signer certificate must contain the OCSP signing extended key
5503 usage. This check is performed by attempting to match the OCSP
5504 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5505 in the OCSP_CERTID structures of the response.
5508 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5509 and related routines. This uses the standard OpenSSL certificate
5510 verify routines to perform initial checks (just CA validity) and
5511 to obtain the certificate chain. Then additional checks will be
5512 performed on the chain. Currently the root CA is checked to see
5513 if it is explicitly trusted for OCSP signing. This is used to set
5514 a root CA as a global signing root: that is any certificate that
5515 chains to that CA is an acceptable OCSP signing certificate.
5518 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5519 extensions from a separate configuration file.
5520 As when reading extensions from the main configuration file,
5521 the '-extensions ...' option may be used for specifying the
5523 [Massimiliano Pala <madwolf@comune.modena.it>]
5525 *) New OCSP utility. Allows OCSP requests to be generated or
5526 read. The request can be sent to a responder and the output
5527 parsed, outputed or printed in text form. Not complete yet:
5528 still needs to check the OCSP response validity.
5531 *) New subcommands for 'openssl ca':
5532 'openssl ca -status <serial>' prints the status of the cert with
5533 the given serial number (according to the index file).
5534 'openssl ca -updatedb' updates the expiry status of certificates
5536 [Massimiliano Pala <madwolf@comune.modena.it>]
5538 *) New '-newreq-nodes' command option to CA.pl. This is like
5539 '-newreq', but calls 'openssl req' with the '-nodes' option
5540 so that the resulting key is not encrypted.
5541 [Damien Miller <djm@mindrot.org>]
5543 *) New configuration for the GNU Hurd.
5544 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5546 *) Initial code to implement OCSP basic response verify. This
5547 is currently incomplete. Currently just finds the signer's
5548 certificate and verifies the signature on the response.
5551 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5552 value of OPENSSLDIR. This is available via the new '-d' option
5553 to 'openssl version', and is also included in 'openssl version -a'.
5556 *) Allowing defining memory allocation callbacks that will be given
5557 file name and line number information in additional arguments
5558 (a const char* and an int). The basic functionality remains, as
5559 well as the original possibility to just replace malloc(),
5560 realloc() and free() by functions that do not know about these
5561 additional arguments. To register and find out the current
5562 settings for extended allocation functions, the following
5563 functions are provided:
5565 CRYPTO_set_mem_ex_functions
5566 CRYPTO_set_locked_mem_ex_functions
5567 CRYPTO_get_mem_ex_functions
5568 CRYPTO_get_locked_mem_ex_functions
5570 These work the same way as CRYPTO_set_mem_functions and friends.
5571 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5572 extended allocation function is enabled.
5573 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5574 a conventional allocation function is enabled.
5575 [Richard Levitte, Bodo Moeller]
5577 *) Finish off removing the remaining LHASH function pointer casts.
5578 There should no longer be any prototype-casting required when using
5579 the LHASH abstraction, and any casts that remain are "bugs". See
5580 the callback types and macros at the head of lhash.h for details
5581 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5584 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5585 If /dev/[u]random devices are not available or do not return enough
5586 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5588 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5589 /etc/entropy will be queried once each in this sequence, quering stops
5590 when enough entropy was collected without querying more sockets.
5593 *) Change the Unix RAND_poll() variant to be able to poll several
5594 random devices, as specified by DEVRANDOM, until a sufficient amount
5595 of data has been collected. We spend at most 10 ms on each file
5596 (select timeout) and read in non-blocking mode. DEVRANDOM now
5597 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5598 (previously it was just the string "/dev/urandom"), so on typical
5599 platforms the 10 ms delay will never occur.
5600 Also separate out the Unix variant to its own file, rand_unix.c.
5601 For VMS, there's a currently-empty rand_vms.c.
5604 *) Move OCSP client related routines to ocsp_cl.c. These
5605 provide utility functions which an application needing
5606 to issue a request to an OCSP responder and analyse the
5607 response will typically need: as opposed to those which an
5608 OCSP responder itself would need which will be added later.
5610 OCSP_request_sign() signs an OCSP request with an API similar
5611 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5612 response. OCSP_response_get1_basic() extracts basic response
5613 from response. OCSP_resp_find_status(): finds and extracts status
5614 information from an OCSP_CERTID structure (which will be created
5615 when the request structure is built). These are built from lower
5616 level functions which work on OCSP_SINGLERESP structures but
5617 wont normally be used unless the application wishes to examine
5618 extensions in the OCSP response for example.
5620 Replace nonce routines with a pair of functions.
5621 OCSP_request_add1_nonce() adds a nonce value and optionally
5622 generates a random value. OCSP_check_nonce() checks the
5623 validity of the nonce in an OCSP response.
5626 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5627 This doesn't copy the supplied OCSP_CERTID and avoids the
5628 need to free up the newly created id. Change return type
5629 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5630 This can then be used to add extensions to the request.
5631 Deleted OCSP_request_new(), since most of its functionality
5632 is now in OCSP_REQUEST_new() (and the case insensitive name
5633 clash) apart from the ability to set the request name which
5634 will be added elsewhere.
5637 *) Update OCSP API. Remove obsolete extensions argument from
5638 various functions. Extensions are now handled using the new
5639 OCSP extension code. New simple OCSP HTTP function which
5640 can be used to send requests and parse the response.
5643 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5644 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5645 uses the special reorder version of SET OF to sort the attributes
5646 and reorder them to match the encoded order. This resolves a long
5647 standing problem: a verify on a PKCS7 structure just after signing
5648 it used to fail because the attribute order did not match the
5649 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5650 it uses the received order. This is necessary to tolerate some broken
5651 software that does not order SET OF. This is handled by encoding
5652 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5653 to produce the required SET OF.
5656 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5657 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5658 files to get correct declarations of the ASN.1 item variables.
5661 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5662 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5663 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5664 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5665 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5666 ASN1_ITEM and no wrapper functions.
5669 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5670 replace the old function pointer based I/O routines. Change most of
5671 the *_d2i_bio() and *_d2i_fp() functions to use these.
5674 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5675 lines, recognice more "algorithms" that can be deselected, and make
5676 it complain about algorithm deselection that isn't recognised.
5679 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5680 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5681 to use new functions. Add NO_ASN1_OLD which can be set to remove
5682 some old style ASN1 functions: this can be used to determine if old
5683 code will still work when these eventually go away.
5686 *) New extension functions for OCSP structures, these follow the
5687 same conventions as certificates and CRLs.
5690 *) New function X509V3_add1_i2d(). This automatically encodes and
5691 adds an extension. Its behaviour can be customised with various
5692 flags to append, replace or delete. Various wrappers added for
5693 certifcates and CRLs.
5696 *) Fix to avoid calling the underlying ASN1 print routine when
5697 an extension cannot be parsed. Correct a typo in the
5698 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5701 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5702 entries for variables.
5705 *) Add functionality to apps/openssl.c for detecting locking
5706 problems: As the program is single-threaded, all we have
5707 to do is register a locking callback using an array for
5708 storing which locks are currently held by the program.
5711 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5712 SSL_get_ex_data_X509_STORE_idx(), which is used in
5713 ssl_verify_cert_chain() and thus can be called at any time
5714 during TLS/SSL handshakes so that thread-safety is essential.
5715 Unfortunately, the ex_data design is not at all suited
5716 for multi-threaded use, so it probably should be abolished.
5719 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5720 [Broadcom, tweaked and integrated by Geoff Thorpe]
5722 *) Move common extension printing code to new function
5723 X509V3_print_extensions(). Reorganise OCSP print routines and
5724 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5727 *) New function X509_signature_print() to remove duplication in some
5731 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5732 set (this was treated exactly the same as SET OF previously). This
5733 is used to reorder the STACK representing the structure to match the
5734 encoding. This will be used to get round a problem where a PKCS7
5735 structure which was signed could not be verified because the STACK
5736 order did not reflect the encoded order.
5739 *) Reimplement the OCSP ASN1 module using the new code.
5742 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5743 for its ASN1 operations. The old style function pointers still exist
5744 for now but they will eventually go away.
5747 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5748 completely replaces the old ASN1 functionality with a table driven
5749 encoder and decoder which interprets an ASN1_ITEM structure describing
5750 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5751 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5752 has also been converted to the new form.
5755 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5756 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5757 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5758 for negative moduli.
5761 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5762 of not touching the result's sign bit.
5765 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5769 *) Changed the LHASH code to use prototypes for callbacks, and created
5770 macros to declare and implement thin (optionally static) functions
5771 that provide type-safety and avoid function pointer casting for the
5772 type-specific callbacks.
5775 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5777 [Veers Staats <staatsvr@asc.hpc.mil>,
5778 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5780 *) Reformat the FAQ so the different questions and answers can be divided
5781 in sections depending on the subject.
5784 *) Have the zlib compression code load ZLIB.DLL dynamically under
5788 *) New function BN_mod_sqrt for computing square roots modulo a prime
5789 (using the probabilistic Tonelli-Shanks algorithm unless
5790 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5791 be handled deterministically).
5792 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5794 *) Make BN_mod_inverse faster by explicitly handling small quotients
5795 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5796 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5799 *) New function BN_kronecker.
5802 *) Fix BN_gcd so that it works on negative inputs; the result is
5803 positive unless both parameters are zero.
5804 Previously something reasonably close to an infinite loop was
5805 possible because numbers could be growing instead of shrinking
5806 in the implementation of Euclid's algorithm.
5809 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5810 sign of the number in question.
5812 Fix BN_is_word(a,w) to work correctly for w == 0.
5814 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5815 because its test if the absolute value of 'a' equals 'w'.
5816 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5817 it exists mostly for use in the implementations of BN_is_zero(),
5818 BN_is_one(), and BN_is_word().
5821 *) New function BN_swap.
5824 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5825 the exponentiation functions are more likely to produce reasonable
5826 results on negative inputs.
5829 *) Change BN_mod_mul so that the result is always non-negative.
5830 Previously, it could be negative if one of the factors was negative;
5831 I don't think anyone really wanted that behaviour.
5834 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5835 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5836 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5837 and add new functions:
5846 BN_mod_lshift1_quick
5850 These functions always generate non-negative results.
5852 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5853 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5855 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5856 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5857 be reduced modulo m.
5858 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5861 The following entry accidentily appeared in the CHANGES file
5862 distributed with OpenSSL 0.9.7. The modifications described in
5863 it do *not* apply to OpenSSL 0.9.7.
5865 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5866 was actually never needed) and in BN_mul(). The removal in BN_mul()
5867 required a small change in bn_mul_part_recursive() and the addition
5868 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5869 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5870 bn_sub_words() and bn_add_words() except they take arrays with
5875 *) In 'openssl passwd', verify passwords read from the terminal
5876 unless the '-salt' option is used (which usually means that
5877 verification would just waste user's time since the resulting
5878 hash is going to be compared with some given password hash)
5879 or the new '-noverify' option is used.
5881 This is an incompatible change, but it does not affect
5882 non-interactive use of 'openssl passwd' (passwords on the command
5883 line, '-stdin' option, '-in ...' option) and thus should not
5887 *) Remove all references to RSAref, since there's no more need for it.
5890 *) Make DSO load along a path given through an environment variable
5891 (SHLIB_PATH) with shl_load().
5894 *) Constify the ENGINE code as a result of BIGNUM constification.
5895 Also constify the RSA code and most things related to it. In a
5896 few places, most notable in the depth of the ASN.1 code, ugly
5897 casts back to non-const were required (to be solved at a later
5901 *) Make it so the openssl application has all engines loaded by default.
5904 *) Constify the BIGNUM routines a little more.
5907 *) Add the following functions:
5909 ENGINE_load_cswift()
5911 ENGINE_load_atalla()
5913 ENGINE_load_builtin_engines()
5915 That way, an application can itself choose if external engines that
5916 are built-in in OpenSSL shall ever be used or not. The benefit is
5917 that applications won't have to be linked with libdl or other dso
5918 libraries unless it's really needed.
5920 Changed 'openssl engine' to load all engines on demand.
5921 Changed the engine header files to avoid the duplication of some
5922 declarations (they differed!).
5925 *) 'openssl engine' can now list capabilities.
5928 *) Better error reporting in 'openssl engine'.
5931 *) Never call load_dh_param(NULL) in s_server.
5934 *) Add engine application. It can currently list engines by name and
5935 identity, and test if they are actually available.
5938 *) Improve RPM specification file by forcing symbolic linking and making
5939 sure the installed documentation is also owned by root.root.
5940 [Damien Miller <djm@mindrot.org>]
5942 *) Give the OpenSSL applications more possibilities to make use of
5943 keys (public as well as private) handled by engines.
5946 *) Add OCSP code that comes from CertCo.
5949 *) Add VMS support for the Rijndael code.
5952 *) Added untested support for Nuron crypto accelerator.
5955 *) Add support for external cryptographic devices. This code was
5956 previously distributed separately as the "engine" branch.
5957 [Geoff Thorpe, Richard Levitte]
5959 *) Rework the filename-translation in the DSO code. It is now possible to
5960 have far greater control over how a "name" is turned into a filename
5961 depending on the operating environment and any oddities about the
5962 different shared library filenames on each system.
5965 *) Support threads on FreeBSD-elf in Configure.
5968 *) Fix for SHA1 assembly problem with MASM: it produces
5969 warnings about corrupt line number information when assembling
5970 with debugging information. This is caused by the overlapping
5972 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5975 NCONF_get_number() has no error checking at all. As a replacement,
5976 NCONF_get_number_e() is defined (_e for "error checking") and is
5977 promoted strongly. The old NCONF_get_number is kept around for
5978 binary backward compatibility.
5979 Make it possible for methods to load from something other than a BIO,
5980 by providing a function pointer that is given a name instead of a BIO.
5981 For example, this could be used to load configuration data from an
5985 *) Fix for non blocking accept BIOs. Added new I/O special reason
5986 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5987 with non blocking I/O was not possible because no retry code was
5988 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5992 *) Added the beginnings of Rijndael support.
5995 *) Fix for bug in DirectoryString mask setting. Add support for
5996 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5997 to allow certificate printing to more controllable, additional
5998 'certopt' option to 'x509' to allow new printing options to be
6002 *) Clean old EAY MD5 hack from e_os.h.
6005 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
6007 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
6008 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
6009 [Joe Orton, Steve Henson]
6011 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
6013 *) Fix additional bug revealed by the NISCC test suite:
6015 Stop bug triggering large recursion when presented with
6016 certain ASN.1 tags (CVE-2003-0851)
6019 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
6021 *) Fix various bugs revealed by running the NISCC test suite:
6023 Stop out of bounds reads in the ASN1 code when presented with
6024 invalid tags (CVE-2003-0543 and CVE-2003-0544).
6026 If verify callback ignores invalid public key errors don't try to check
6027 certificate signature with the NULL public key.
6031 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
6032 if the server requested one: as stated in TLS 1.0 and SSL 3.0
6036 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
6037 extra data after the compression methods not only for TLS 1.0
6038 but also for SSL 3.0 (as required by the specification).
6039 [Bodo Moeller; problem pointed out by Matthias Loepfe]
6041 *) Change X509_certificate_type() to mark the key as exported/exportable
6042 when it's 512 *bits* long, not 512 bytes.
6045 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
6047 *) Countermeasure against the Klima-Pokorny-Rosa extension of
6048 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
6049 a protocol version number mismatch like a decryption error
6050 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
6053 *) Turn on RSA blinding by default in the default implementation
6054 to avoid a timing attack. Applications that don't want it can call
6055 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
6056 They would be ill-advised to do so in most cases.
6057 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
6059 *) Change RSA blinding code so that it works when the PRNG is not
6060 seeded (in this case, the secret RSA exponent is abused as
6061 an unpredictable seed -- if it is not unpredictable, there
6062 is no point in blinding anyway). Make RSA blinding thread-safe
6063 by remembering the creator's thread ID in rsa->blinding and
6064 having all other threads use local one-time blinding factors
6065 (this requires more computation than sharing rsa->blinding, but
6066 avoids excessive locking; and if an RSA object is not shared
6067 between threads, blinding will still be very fast).
6070 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
6072 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
6073 via timing by performing a MAC computation even if incorrrect
6074 block cipher padding has been found. This is a countermeasure
6075 against active attacks where the attacker has to distinguish
6076 between bad padding and a MAC verification error. (CVE-2003-0078)
6078 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
6079 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
6080 Martin Vuagnoux (EPFL, Ilion)]
6082 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
6084 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
6085 memory from it's contents. This is done with a counter that will
6086 place alternating values in each byte. This can be used to solve
6087 two issues: 1) the removal of calls to memset() by highly optimizing
6088 compilers, and 2) cleansing with other values than 0, since those can
6089 be read through on certain media, for example a swap space on disk.
6092 *) Bugfix: client side session caching did not work with external caching,
6093 because the session->cipher setting was not restored when reloading
6094 from the external cache. This problem was masked, when
6095 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
6096 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
6099 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
6100 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
6101 [Zeev Lieber <zeev-l@yahoo.com>]
6103 *) Undo an undocumented change introduced in 0.9.6e which caused
6104 repeated calls to OpenSSL_add_all_ciphers() and
6105 OpenSSL_add_all_digests() to be ignored, even after calling
6109 *) Change the default configuration reader to deal with last line not
6110 being properly terminated.
6113 *) Change X509_NAME_cmp() so it applies the special rules on handling
6114 DN values that are of type PrintableString, as well as RDNs of type
6115 emailAddress where the value has the type ia5String.
6116 [stefank@valicert.com via Richard Levitte]
6118 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
6119 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
6120 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
6121 the bitwise-OR of the two for use by the majority of applications
6122 wanting this behaviour, and update the docs. The documented
6123 behaviour and actual behaviour were inconsistent and had been
6124 changing anyway, so this is more a bug-fix than a behavioural
6126 [Geoff Thorpe, diagnosed by Nadav Har'El]
6128 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
6129 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
6132 *) Fix initialization code race conditions in
6133 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
6134 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
6135 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
6136 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
6137 ssl2_get_cipher_by_char(),
6138 ssl3_get_cipher_by_char().
6139 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
6141 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
6142 the cached sessions are flushed, as the remove_cb() might use ex_data
6143 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
6144 (see [openssl.org #212]).
6145 [Geoff Thorpe, Lutz Jaenicke]
6147 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
6148 length, instead of the encoding length to d2i_ASN1_OBJECT.
6151 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
6153 *) [In 0.9.6g-engine release:]
6154 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
6155 [Lynn Gazis <lgazis@rainbow.com>]
6157 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
6159 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
6160 and get fix the header length calculation.
6161 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
6162 Alon Kantor <alonk@checkpoint.com> (and others),
6165 *) Use proper error handling instead of 'assertions' in buffer
6166 overflow checks added in 0.9.6e. This prevents DoS (the
6167 assertions could call abort()).
6168 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
6170 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
6172 *) Add various sanity checks to asn1_get_length() to reject
6173 the ASN1 length bytes if they exceed sizeof(long), will appear
6174 negative or the content length exceeds the length of the
6176 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6178 *) Fix cipher selection routines: ciphers without encryption had no flags
6179 for the cipher strength set and where therefore not handled correctly
6180 by the selection routines (PR #130).
6183 *) Fix EVP_dsa_sha macro.
6187 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
6188 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
6189 that was added in OpenSSL 0.9.6d.
6191 As the countermeasure turned out to be incompatible with some
6192 broken SSL implementations, the new option is part of SSL_OP_ALL.
6193 SSL_OP_ALL is usually employed when compatibility with weird SSL
6194 implementations is desired (e.g. '-bugs' option to 's_client' and
6195 's_server'), so the new option is automatically set in many
6199 *) Changes in security patch:
6201 Changes marked "(CHATS)" were sponsored by the Defense Advanced
6202 Research Projects Agency (DARPA) and Air Force Research Laboratory,
6203 Air Force Materiel Command, USAF, under agreement number
6206 *) Add various sanity checks to asn1_get_length() to reject
6207 the ASN1 length bytes if they exceed sizeof(long), will appear
6208 negative or the content length exceeds the length of the
6209 supplied buffer. (CVE-2002-0659)
6210 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6212 *) Assertions for various potential buffer overflows, not known to
6214 [Ben Laurie (CHATS)]
6216 *) Various temporary buffers to hold ASCII versions of integers were
6217 too small for 64 bit platforms. (CVE-2002-0655)
6218 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
6220 *) Remote buffer overflow in SSL3 protocol - an attacker could
6221 supply an oversized session ID to a client. (CVE-2002-0656)
6222 [Ben Laurie (CHATS)]
6224 *) Remote buffer overflow in SSL2 protocol - an attacker could
6225 supply an oversized client master key. (CVE-2002-0656)
6226 [Ben Laurie (CHATS)]
6228 Changes between 0.9.6c and 0.9.6d [9 May 2002]
6230 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
6231 encoded as NULL) with id-dsa-with-sha1.
6232 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
6234 *) Check various X509_...() return values in apps/req.c.
6235 [Nils Larsch <nla@trustcenter.de>]
6237 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
6238 an end-of-file condition would erronously be flagged, when the CRLF
6239 was just at the end of a processed block. The bug was discovered when
6240 processing data through a buffering memory BIO handing the data to a
6241 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
6242 <ptsekov@syntrex.com> and Nedelcho Stanev.
6245 *) Implement a countermeasure against a vulnerability recently found
6246 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
6247 before application data chunks to avoid the use of known IVs
6248 with data potentially chosen by the attacker.
6251 *) Fix length checks in ssl3_get_client_hello().
6254 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
6255 to prevent ssl3_read_internal() from incorrectly assuming that
6256 ssl3_read_bytes() found application data while handshake
6257 processing was enabled when in fact s->s3->in_read_app_data was
6258 merely automatically cleared during the initial handshake.
6259 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
6261 *) Fix object definitions for Private and Enterprise: they were not
6262 recognized in their shortname (=lowercase) representation. Extend
6263 obj_dat.pl to issue an error when using undefined keywords instead
6264 of silently ignoring the problem (Svenning Sorensen
6265 <sss@sss.dnsalias.net>).
6268 *) Fix DH_generate_parameters() so that it works for 'non-standard'
6269 generators, i.e. generators other than 2 and 5. (Previously, the
6270 code did not properly initialise the 'add' and 'rem' values to
6271 BN_generate_prime().)
6273 In the new general case, we do not insist that 'generator' is
6274 actually a primitive root: This requirement is rather pointless;
6275 a generator of the order-q subgroup is just as good, if not
6279 *) Map new X509 verification errors to alerts. Discovered and submitted by
6280 Tom Wu <tom@arcot.com>.
6283 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
6284 returning non-zero before the data has been completely received
6285 when using non-blocking I/O.
6286 [Bodo Moeller; problem pointed out by John Hughes]
6288 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
6289 [Ben Laurie, Lutz Jaenicke]
6291 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
6292 Yoram Zahavi <YoramZ@gilian.com>).
6295 *) Add information about CygWin 1.3 and on, and preserve proper
6296 configuration for the versions before that.
6297 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
6299 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
6300 check whether we deal with a copy of a session and do not delete from
6301 the cache in this case. Problem reported by "Izhar Shoshani Levi"
6302 <izhar@checkpoint.com>.
6305 *) Do not store session data into the internal session cache, if it
6306 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
6307 flag is set). Proposed by Aslam <aslam@funk.com>.
6310 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
6314 *) [In 0.9.6d-engine release:]
6315 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
6316 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
6318 *) Add the configuration target linux-s390x.
6319 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
6321 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
6322 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
6323 variable as an indication that a ClientHello message has been
6324 received. As the flag value will be lost between multiple
6325 invocations of ssl3_accept when using non-blocking I/O, the
6326 function may not be aware that a handshake has actually taken
6327 place, thus preventing a new session from being added to the
6330 To avoid this problem, we now set s->new_session to 2 instead of
6331 using a local variable.
6332 [Lutz Jaenicke, Bodo Moeller]
6334 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
6335 if the SSL_R_LENGTH_MISMATCH error is detected.
6336 [Geoff Thorpe, Bodo Moeller]
6338 *) New 'shared_ldflag' column in Configure platform table.
6341 *) Fix EVP_CIPHER_mode macro.
6342 ["Dan S. Camper" <dan@bti.net>]
6344 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
6345 type, we must throw them away by setting rr->length to 0.
6346 [D P Chang <dpc@qualys.com>]
6348 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
6350 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
6351 <Dominikus.Scherkl@biodata.com>. (The previous implementation
6352 worked incorrectly for those cases where range = 10..._2 and
6353 3*range is two bits longer than range.)
6356 *) Only add signing time to PKCS7 structures if it is not already
6360 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
6361 OBJ_ld_ce should be OBJ_id_ce.
6362 Also some ip-pda OIDs in crypto/objects/objects.txt were
6363 incorrect (cf. RFC 3039).
6364 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6366 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6367 returns early because it has nothing to do.
6368 [Andy Schneider <andy.schneider@bjss.co.uk>]
6370 *) [In 0.9.6c-engine release:]
6371 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6372 [Andy Schneider <andy.schneider@bjss.co.uk>]
6374 *) [In 0.9.6c-engine release:]
6375 Add support for Cryptographic Appliance's keyserver technology.
6376 (Use engine 'keyclient')
6377 [Cryptographic Appliances and Geoff Thorpe]
6379 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6380 is called via tools/c89.sh because arguments have to be
6381 rearranged (all '-L' options must appear before the first object
6383 [Richard Shapiro <rshapiro@abinitio.com>]
6385 *) [In 0.9.6c-engine release:]
6386 Add support for Broadcom crypto accelerator cards, backported
6388 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6390 *) [In 0.9.6c-engine release:]
6391 Add support for SureWare crypto accelerator cards from
6392 Baltimore Technologies. (Use engine 'sureware')
6393 [Baltimore Technologies and Mark Cox]
6395 *) [In 0.9.6c-engine release:]
6396 Add support for crypto accelerator cards from Accelerated
6397 Encryption Processing, www.aep.ie. (Use engine 'aep')
6398 [AEP Inc. and Mark Cox]
6400 *) Add a configuration entry for gcc on UnixWare.
6401 [Gary Benson <gbenson@redhat.com>]
6403 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6404 messages are stored in a single piece (fixed-length part and
6405 variable-length part combined) and fix various bugs found on the way.
6408 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6409 instead. BIO_gethostbyname() does not know what timeouts are
6410 appropriate, so entries would stay in cache even when they have
6412 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6414 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6415 faced with a pathologically small ClientHello fragment that does
6416 not contain client_version: Instead of aborting with an error,
6417 simply choose the highest available protocol version (i.e.,
6418 TLS 1.0 unless it is disabled). In practice, ClientHello
6419 messages are never sent like this, but this change gives us
6420 strictly correct behaviour at least for TLS.
6423 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6424 never resets s->method to s->ctx->method when called from within
6425 one of the SSL handshake functions.
6426 [Bodo Moeller; problem pointed out by Niko Baric]
6428 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6429 (sent using the client's version number) if client_version is
6430 smaller than the protocol version in use. Also change
6431 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6432 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6433 the client will at least see that alert.
6436 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6440 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6441 client receives HelloRequest while in a handshake.
6442 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6444 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6445 should end in 'break', not 'goto end' which circuments various
6446 cleanups done in state SSL_ST_OK. But session related stuff
6447 must be disabled for SSL_ST_OK in the case that we just sent a
6450 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6451 before just sending a HelloRequest.
6452 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6454 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6455 reveal whether illegal block cipher padding was found or a MAC
6456 verification error occured. (Neither SSLerr() codes nor alerts
6457 are directly visible to potential attackers, but the information
6458 may leak via logfiles.)
6460 Similar changes are not required for the SSL 2.0 implementation
6461 because the number of padding bytes is sent in clear for SSL 2.0,
6462 and the extra bytes are just ignored. However ssl/s2_pkt.c
6463 failed to verify that the purported number of padding bytes is in
6467 *) Add OpenUNIX-8 support including shared libraries
6468 (Boyd Lynn Gerber <gerberb@zenez.com>).
6471 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6472 'wristwatch attack' using huge encoding parameters (cf.
6473 James H. Manger's CRYPTO 2001 paper). Note that the
6474 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6475 encoding parameters and hence was not vulnerable.
6478 *) BN_sqr() bug fix.
6479 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6481 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6482 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6483 followed by modular reduction.
6484 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6486 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6487 equivalent based on BN_pseudo_rand() instead of BN_rand().
6490 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6491 This function was broken, as the check for a new client hello message
6492 to handle SGC did not allow these large messages.
6493 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6496 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6499 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6500 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6503 *) Rework the configuration and shared library support for Tru64 Unix.
6504 The configuration part makes use of modern compiler features and
6505 still retains old compiler behavior for those that run older versions
6506 of the OS. The shared library support part includes a variant that
6507 uses the RPATH feature, and is available through the special
6508 configuration target "alpha-cc-rpath", which will never be selected
6510 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6512 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6513 with the same message size as in ssl3_get_certificate_request().
6514 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6515 messages might inadvertently be reject as too long.
6516 [Petr Lampa <lampa@fee.vutbr.cz>]
6518 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6521 *) Modified SSL library such that the verify_callback that has been set
6522 specificly for an SSL object with SSL_set_verify() is actually being
6523 used. Before the change, a verify_callback set with this function was
6524 ignored and the verify_callback() set in the SSL_CTX at the time of
6525 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6526 to allow the necessary settings.
6529 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6530 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6531 done automatically (in contradiction to the requirements of the C
6532 standard). This made problems when used from OpenSSH.
6535 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6536 dh->length and always used
6538 BN_rand_range(priv_key, dh->p).
6540 BN_rand_range() is not necessary for Diffie-Hellman, and this
6541 specific range makes Diffie-Hellman unnecessarily inefficient if
6542 dh->length (recommended exponent length) is much smaller than the
6543 length of dh->p. We could use BN_rand_range() if the order of
6544 the subgroup was stored in the DH structure, but we only have
6549 BN_rand(priv_key, l, ...)
6551 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6557 RSA_eay_public_encrypt
6558 RSA_eay_private_decrypt
6559 RSA_eay_private_encrypt (signing)
6560 RSA_eay_public_decrypt (signature verification)
6562 (default implementations for RSA_public_encrypt,
6563 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6564 always reject numbers >= n.
6567 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6568 to synchronize access to 'locking_thread'. This is necessary on
6569 systems where access to 'locking_thread' (an 'unsigned long'
6570 variable) is not atomic.
6573 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6574 *before* setting the 'crypto_lock_rand' flag. The previous code had
6575 a race condition if 0 is a valid thread ID.
6576 [Travis Vitek <vitek@roguewave.com>]
6578 *) Add support for shared libraries under Irix.
6579 [Albert Chin-A-Young <china@thewrittenword.com>]
6581 *) Add configuration option to build on Linux on both big-endian and
6583 [Ralf Baechle <ralf@uni-koblenz.de>]
6585 *) Add the possibility to create shared libraries on HP-UX.
6588 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6590 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6591 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6592 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6593 PRNG state recovery was possible based on the output of
6594 one PRNG request appropriately sized to gain knowledge on
6595 'md' followed by enough consecutive 1-byte PRNG requests
6596 to traverse all of 'state'.
6598 1. When updating 'md_local' (the current thread's copy of 'md')
6599 during PRNG output generation, hash all of the previous
6600 'md_local' value, not just the half used for PRNG output.
6602 2. Make the number of bytes from 'state' included into the hash
6603 independent from the number of PRNG bytes requested.
6605 The first measure alone would be sufficient to avoid
6606 Markku-Juhani's attack. (Actually it had never occurred
6607 to me that the half of 'md_local' used for chaining was the
6608 half from which PRNG output bytes were taken -- I had always
6609 assumed that the secret half would be used.) The second
6610 measure makes sure that additional data from 'state' is never
6611 mixed into 'md_local' in small portions; this heuristically
6612 further strengthens the PRNG.
6615 *) Fix crypto/bn/asm/mips3.s.
6618 *) When only the key is given to "enc", the IV is undefined. Print out
6619 an error message in this case.
6622 *) Handle special case when X509_NAME is empty in X509 printing routines.
6625 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6626 positive and less than q.
6629 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6630 used: it isn't thread safe and the add_lock_callback should handle
6632 [Paul Rose <Paul.Rose@bridge.com>]
6634 *) Verify that incoming data obeys the block size in
6635 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6639 [Ulf Möller, Bodo Möller]
6641 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6642 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6643 when fixing the server behaviour for backwards-compatible 'client
6644 hello' messages. (Note that the attack is impractical against
6645 SSL 3.0 and TLS 1.0 anyway because length and version checking
6646 means that the probability of guessing a valid ciphertext is
6647 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6650 Before 0.9.5, the countermeasure (hide the error by generating a
6651 random 'decryption result') did not work properly because
6652 ERR_clear_error() was missing, meaning that SSL_get_error() would
6653 detect the supposedly ignored error.
6655 Both problems are now fixed.
6658 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6659 (previously it was 1024).
6662 *) Fix for compatibility mode trust settings: ignore trust settings
6663 unless some valid trust or reject settings are present.
6666 *) Fix for blowfish EVP: its a variable length cipher.
6669 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6670 parameters in DSA public key structures and return an error in the
6671 DSA routines if parameters are absent.
6674 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6675 in the current directory if neither $RANDFILE nor $HOME was set.
6676 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6677 caused some confusion to Windows users who haven't defined $HOME.
6678 Thus RAND_file_name() is changed again: e_os.h can define a
6679 DEFAULT_HOME, which will be used if $HOME is not set.
6680 For Windows, we use "C:"; on other platforms, we still require
6681 environment variables.
6683 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6684 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6685 having multiple threads call RAND_poll() concurrently.
6688 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6689 combination of a flag and a thread ID variable.
6690 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6691 flag), *other* threads can enter ssleay_add_bytes without obeying
6692 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6693 that they do not hold after the first thread unsets add_do_not_lock).
6696 *) Change bctest again: '-x' expressions are not available in all
6700 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6702 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6703 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6705 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6706 the default extension for executables, if any. Also, make the perl
6707 scripts that use symlink() to test if it really exists and use "cp"
6708 if it doesn't. All this made OpenSSL compilable and installable in
6712 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6713 If SEQUENCE is length is indefinite just set c->slen to the total
6714 amount of data available.
6715 [Steve Henson, reported by shige@FreeBSD.org]
6716 [This change does not apply to 0.9.7.]
6718 *) Change bctest to avoid here-documents inside command substitution
6719 (workaround for FreeBSD /bin/sh bug).
6720 For compatibility with Ultrix, avoid shell functions (introduced
6721 in the bctest version that searches along $PATH).
6724 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6725 with des_encrypt() defined on some operating systems, like Solaris
6729 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6730 On the Importance of Eliminating Errors in Cryptographic
6731 Computations, J. Cryptology 14 (2001) 2, 101-119,
6732 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6735 *) MIPS assembler BIGNUM division bug fix.
6738 *) Disabled incorrect Alpha assembler code.
6741 *) Fix PKCS#7 decode routines so they correctly update the length
6742 after reading an EOC for the EXPLICIT tag.
6744 [This change does not apply to 0.9.7.]
6746 *) Fix bug in PKCS#12 key generation routines. This was triggered
6747 if a 3DES key was generated with a 0 initial byte. Include
6748 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6749 (but broken) behaviour.
6752 *) Enhance bctest to search for a working bc along $PATH and print
6754 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6756 *) Fix memory leaks in err.c: free err_data string if necessary;
6757 don't write to the wrong index in ERR_set_error_data.
6760 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6764 *) Replace rdtsc with _emit statements for VC++ version 5.
6765 [Jeremy Cooper <jeremy@baymoo.org>]
6767 *) Make it possible to reuse SSLv2 sessions.
6770 *) In copy_email() check for >= 0 as a return value for
6771 X509_NAME_get_index_by_NID() since 0 is a valid index.
6772 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6774 *) Avoid coredump with unsupported or invalid public keys by checking if
6775 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6776 PKCS7_verify() fails with non detached data.
6779 *) Don't use getenv in library functions when run as setuid/setgid.
6780 New function OPENSSL_issetugid().
6783 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6784 due to incorrect handling of multi-threading:
6786 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6788 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6790 3. Count how many times MemCheck_off() has been called so that
6791 nested use can be treated correctly. This also avoids
6792 inband-signalling in the previous code (which relied on the
6793 assumption that thread ID 0 is impossible).
6796 *) Add "-rand" option also to s_client and s_server.
6799 *) Fix CPU detection on Irix 6.x.
6800 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6801 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6803 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6806 [This change does not apply to 0.9.7.]
6808 *) Use the cached encoding of an X509_NAME structure rather than
6809 copying it. This is apparently the reason for the libsafe "errors"
6810 but the code is actually correct.
6813 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6814 Bleichenbacher's DSA attack.
6815 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6816 to be set and top=0 forces the highest bit to be set; top=-1 is new
6817 and leaves the highest bit random.
6818 [Ulf Moeller, Bodo Moeller]
6820 *) In the NCONF_...-based implementations for CONF_... queries
6821 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6822 a temporary CONF structure with the data component set to NULL
6823 (which gives segmentation faults in lh_retrieve).
6824 Instead, use NULL for the CONF pointer in CONF_get_string and
6825 CONF_get_number (which may use environment variables) and directly
6826 return NULL from CONF_get_section.
6829 *) Fix potential buffer overrun for EBCDIC.
6832 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6833 keyUsage if basicConstraints absent for a CA.
6836 *) Make SMIME_write_PKCS7() write mail header values with a format that
6837 is more generally accepted (no spaces before the semicolon), since
6838 some programs can't parse those values properly otherwise. Also make
6839 sure BIO's that break lines after each write do not create invalid
6843 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6844 macros previously used would not encode an empty SEQUENCE OF
6845 and break the signature.
6847 [This change does not apply to 0.9.7.]
6849 *) Zero the premaster secret after deriving the master secret in
6853 *) Add some EVP_add_digest_alias registrations (as found in
6854 OpenSSL_add_all_digests()) to SSL_library_init()
6855 aka OpenSSL_add_ssl_algorithms(). This provides improved
6856 compatibility with peers using X.509 certificates
6857 with unconventional AlgorithmIdentifier OIDs.
6860 *) Fix for Irix with NO_ASM.
6861 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6863 *) ./config script fixes.
6864 [Ulf Moeller, Richard Levitte]
6866 *) Fix 'openssl passwd -1'.
6869 *) Change PKCS12_key_gen_asc() so it can cope with non null
6870 terminated strings whose length is passed in the passlen
6871 parameter, for example from PEM callbacks. This was done
6872 by adding an extra length parameter to asc2uni().
6873 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6875 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6876 call failed, free the DSA structure.
6879 *) Fix to uni2asc() to cope with zero length Unicode strings.
6880 These are present in some PKCS#12 files.
6883 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6884 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6885 when writing a 32767 byte record.
6886 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6888 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6889 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6891 (RSA objects have a reference count access to which is protected
6892 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6893 so they are meant to be shared between threads.)
6894 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6895 "Reddie, Steven" <Steven.Reddie@ca.com>]
6897 *) Fix a deadlock in CRYPTO_mem_leaks().
6900 *) Use better test patterns in bntest.
6903 *) rand_win.c fix for Borland C.
6906 *) BN_rshift bugfix for n == 0.
6909 *) Add a 'bctest' script that checks for some known 'bc' bugs
6910 so that 'make test' does not abort just because 'bc' is broken.
6913 *) Store verify_result within SSL_SESSION also for client side to
6914 avoid potential security hole. (Re-used sessions on the client side
6915 always resulted in verify_result==X509_V_OK, not using the original
6916 result of the server certificate verification.)
6919 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6920 SSL3_RT_APPLICATION_DATA, return 0.
6921 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6925 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6926 releases, have been re-implemented by renaming the previous
6927 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6928 and ssl3_read_internal, respectively, and adding 'peek' parameters
6929 to them. The new ssl[23]_{read,peek} functions are calls to
6930 ssl[23]_read_internal with the 'peek' flag set appropriately.
6931 A 'peek' parameter has also been added to ssl3_read_bytes, which
6932 does the actual work for ssl3_read_internal.
6935 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6936 the method-specific "init()" handler. Also clean up ex_data after
6937 calling the method-specific "finish()" handler. Previously, this was
6938 happening the other way round.
6941 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6942 The previous value, 12, was not always sufficient for BN_mod_exp().
6945 *) Make sure that shared libraries get the internal name engine with
6946 the full version number and not just 0. This should mark the
6947 shared libraries as not backward compatible. Of course, this should
6948 be changed again when we can guarantee backward binary compatibility.
6951 *) Fix typo in get_cert_by_subject() in by_dir.c
6952 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6954 *) Rework the system to generate shared libraries:
6956 - Make note of the expected extension for the shared libraries and
6957 if there is a need for symbolic links from for example libcrypto.so.0
6958 to libcrypto.so.0.9.7. There is extended info in Configure for
6961 - Make as few rebuilds of the shared libraries as possible.
6963 - Still avoid linking the OpenSSL programs with the shared libraries.
6965 - When installing, install the shared libraries separately from the
6969 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6971 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6972 and not in SSL_clear because the latter is also used by the
6973 accept/connect functions; previously, the settings made by
6974 SSL_set_read_ahead would be lost during the handshake.
6975 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6977 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6978 Previously, it would create entries for disableed algorithms no
6982 *) Added several new manual pages for SSL_* function.
6985 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6987 *) In ssl23_get_client_hello, generate an error message when faced
6988 with an initial SSL 3.0/TLS record that is too small to contain the
6989 first two bytes of the ClientHello message, i.e. client_version.
6990 (Note that this is a pathologic case that probably has never happened
6991 in real life.) The previous approach was to use the version number
6992 from the record header as a substitute; but our protocol choice
6993 should not depend on that one because it is not authenticated
6994 by the Finished messages.
6997 *) More robust randomness gathering functions for Windows.
6998 [Jeffrey Altman <jaltman@columbia.edu>]
7000 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
7001 not set then we don't setup the error code for issuer check errors
7002 to avoid possibly overwriting other errors which the callback does
7003 handle. If an application does set the flag then we assume it knows
7004 what it is doing and can handle the new informational codes
7008 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
7009 a general "ANY" type, as such it should be able to decode anything
7010 including tagged types. However it didn't check the class so it would
7011 wrongly interpret tagged types in the same way as their universal
7012 counterpart and unknown types were just rejected. Changed so that the
7013 tagged and unknown types are handled in the same way as a SEQUENCE:
7014 that is the encoding is stored intact. There is also a new type
7015 "V_ASN1_OTHER" which is used when the class is not universal, in this
7016 case we have no idea what the actual type is so we just lump them all
7020 *) On VMS, stdout may very well lead to a file that is written to
7021 in a record-oriented fashion. That means that every write() will
7022 write a separate record, which will be read separately by the
7023 programs trying to read from it. This can be very confusing.
7025 The solution is to put a BIO filter in the way that will buffer
7026 text until a linefeed is reached, and then write everything a
7027 line at a time, so every record written will be an actual line,
7028 not chunks of lines and not (usually doesn't happen, but I've
7029 seen it once) several lines in one record. BIO_f_linebuffer() is
7032 Currently, it's a VMS-only method, because that's where it has
7033 been tested well enough.
7036 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
7037 it can return incorrect results.
7038 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
7039 but it was in 0.9.6-beta[12].)
7042 *) Disable the check for content being present when verifying detached
7043 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
7044 include zero length content when signing messages.
7047 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
7048 BIO_ctrl (for BIO pairs).
7051 *) Add DSO method for VMS.
7054 *) Bug fix: Montgomery multiplication could produce results with the
7058 *) Add RPM specification openssl.spec and modify it to build three
7059 packages. The default package contains applications, application
7060 documentation and run-time libraries. The devel package contains
7061 include files, static libraries and function documentation. The
7062 doc package contains the contents of the doc directory. The original
7063 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
7066 *) Add a large number of documentation files for many SSL routines.
7067 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7069 *) Add a configuration entry for Sony News 4.
7070 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
7072 *) Don't set the two most significant bits to one when generating a
7073 random number < q in the DSA library.
7076 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
7077 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
7078 the underlying transport is blocking) if a handshake took place.
7079 (The default behaviour is needed by applications such as s_client
7080 and s_server that use select() to determine when to use SSL_read;
7081 but for applications that know in advance when to expect data, it
7082 just makes things more complicated.)
7085 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
7089 *) Add a few more EBCDIC conditionals that make `req' and `x509'
7090 work better on such systems.
7091 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7093 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
7094 Update PKCS12_parse() so it copies the friendlyName and the
7095 keyid to the certificates aux info.
7098 *) Fix bug in PKCS7_verify() which caused an infinite loop
7099 if there was more than one signature.
7100 [Sven Uszpelkat <su@celocom.de>]
7102 *) Major change in util/mkdef.pl to include extra information
7103 about each symbol, as well as presentig variables as well
7104 as functions. This change means that there's n more need
7105 to rebuild the .num files when some algorithms are excluded.
7108 *) Allow the verify time to be set by an application,
7109 rather than always using the current time.
7112 *) Phase 2 verify code reorganisation. The certificate
7113 verify code now looks up an issuer certificate by a
7114 number of criteria: subject name, authority key id
7115 and key usage. It also verifies self signed certificates
7116 by the same criteria. The main comparison function is
7117 X509_check_issued() which performs these checks.
7119 Lot of changes were necessary in order to support this
7120 without completely rewriting the lookup code.
7122 Authority and subject key identifier are now cached.
7124 The LHASH 'certs' is X509_STORE has now been replaced
7125 by a STACK_OF(X509_OBJECT). This is mainly because an
7126 LHASH can't store or retrieve multiple objects with
7127 the same hash value.
7129 As a result various functions (which were all internal
7130 use only) have changed to handle the new X509_STORE
7131 structure. This will break anything that messed round
7132 with X509_STORE internally.
7134 The functions X509_STORE_add_cert() now checks for an
7135 exact match, rather than just subject name.
7137 The X509_STORE API doesn't directly support the retrieval
7138 of multiple certificates matching a given criteria, however
7139 this can be worked round by performing a lookup first
7140 (which will fill the cache with candidate certificates)
7141 and then examining the cache for matches. This is probably
7142 the best we can do without throwing out X509_LOOKUP
7143 entirely (maybe later...).
7145 The X509_VERIFY_CTX structure has been enhanced considerably.
7147 All certificate lookup operations now go via a get_issuer()
7148 callback. Although this currently uses an X509_STORE it
7149 can be replaced by custom lookups. This is a simple way
7150 to bypass the X509_STORE hackery necessary to make this
7151 work and makes it possible to use more efficient techniques
7152 in future. A very simple version which uses a simple
7153 STACK for its trusted certificate store is also provided
7154 using X509_STORE_CTX_trusted_stack().
7156 The verify_cb() and verify() callbacks now have equivalents
7157 in the X509_STORE_CTX structure.
7159 X509_STORE_CTX also has a 'flags' field which can be used
7160 to customise the verify behaviour.
7163 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
7164 excludes S/MIME capabilities.
7167 *) When a certificate request is read in keep a copy of the
7168 original encoding of the signed data and use it when outputing
7169 again. Signatures then use the original encoding rather than
7170 a decoded, encoded version which may cause problems if the
7171 request is improperly encoded.
7174 *) For consistency with other BIO_puts implementations, call
7175 buffer_write(b, ...) directly in buffer_puts instead of calling
7178 In BIO_puts, increment b->num_write as in BIO_write.
7179 [Peter.Sylvester@EdelWeb.fr]
7181 *) Fix BN_mul_word for the case where the word is 0. (We have to use
7182 BN_zero, we may not return a BIGNUM with an array consisting of
7186 *) Avoid calling abort() from within the library when problems are
7187 detected, except if preprocessor symbols have been defined
7188 (such as REF_CHECK, BN_DEBUG etc.).
7191 *) New openssl application 'rsautl'. This utility can be
7192 used for low level RSA operations. DER public key
7193 BIO/fp routines also added.
7196 *) New Configure entry and patches for compiling on QNX 4.
7197 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
7199 *) A demo state-machine implementation was sponsored by
7200 Nuron (http://www.nuron.com/) and is now available in
7201 demos/state_machine.
7204 *) New options added to the 'dgst' utility for signature
7205 generation and verification.
7208 *) Unrecognized PKCS#7 content types are now handled via a
7209 catch all ASN1_TYPE structure. This allows unsupported
7210 types to be stored as a "blob" and an application can
7211 encode and decode it manually.
7214 *) Fix various signed/unsigned issues to make a_strex.c
7216 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
7218 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
7219 length if passed a buffer. ASN1_INTEGER_to_BN failed
7220 if passed a NULL BN and its argument was negative.
7221 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
7223 *) Modification to PKCS#7 encoding routines to output definite
7224 length encoding. Since currently the whole structures are in
7225 memory there's not real point in using indefinite length
7226 constructed encoding. However if OpenSSL is compiled with
7227 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
7230 *) Added BIO_vprintf() and BIO_vsnprintf().
7233 *) Added more prefixes to parse for in the the strings written
7234 through a logging bio, to cover all the levels that are available
7235 through syslog. The prefixes are now:
7237 PANIC, EMERG, EMR => LOG_EMERG
7238 ALERT, ALR => LOG_ALERT
7239 CRIT, CRI => LOG_CRIT
7240 ERROR, ERR => LOG_ERR
7241 WARNING, WARN, WAR => LOG_WARNING
7242 NOTICE, NOTE, NOT => LOG_NOTICE
7243 INFO, INF => LOG_INFO
7244 DEBUG, DBG => LOG_DEBUG
7246 and as before, if none of those prefixes are present at the
7247 beginning of the string, LOG_ERR is chosen.
7249 On Win32, the LOG_* levels are mapped according to this:
7251 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
7252 LOG_WARNING => EVENTLOG_WARNING_TYPE
7253 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
7257 *) Made it possible to reconfigure with just the configuration
7258 argument "reconf" or "reconfigure". The command line arguments
7259 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
7260 and are retrieved from there when reconfiguring.
7264 [Assar Westerlund <assar@sics.se>, Richard Levitte]
7266 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
7269 *) The obj_dat.pl script was messing up the sorting of object
7270 names. The reason was that it compared the quoted version
7271 of strings as a result "OCSP" > "OCSP Signing" because
7272 " > SPACE. Changed script to store unquoted versions of
7273 names and add quotes on output. It was also omitting some
7274 names from the lookup table if they were given a default
7275 value (that is if SN is missing it is given the same
7276 value as LN and vice versa), these are now added on the
7277 grounds that if an object has a name we should be able to
7278 look it up. Finally added warning output when duplicate
7279 short or long names are found.
7282 *) Changes needed for Tandem NSK.
7283 [Scott Uroff <scott@xypro.com>]
7285 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
7286 RSA_padding_check_SSLv23(), special padding was never detected
7287 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
7288 version rollback attacks was not effective.
7290 In s23_clnt.c, don't use special rollback-attack detection padding
7291 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
7292 client; similarly, in s23_srvr.c, don't do the rollback check if
7293 SSL 2.0 is the only protocol enabled in the server.
7296 *) Make it possible to get hexdumps of unprintable data with 'openssl
7297 asn1parse'. By implication, the functions ASN1_parse_dump() and
7298 BIO_dump_indent() are added.
7301 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
7302 these print out strings and name structures based on various
7303 flags including RFC2253 support and proper handling of
7304 multibyte characters. Added options to the 'x509' utility
7305 to allow the various flags to be set.
7308 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
7309 Also change the functions X509_cmp_current_time() and
7310 X509_gmtime_adj() work with an ASN1_TIME structure,
7311 this will enable certificates using GeneralizedTime in validity
7312 dates to be checked.
7315 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
7316 negative public key encodings) on by default,
7317 NO_NEG_PUBKEY_BUG can be set to disable it.
7320 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
7321 content octets. An i2c_ASN1_OBJECT is unnecessary because
7322 the encoding can be trivially obtained from the structure.
7325 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
7326 not read locks (CRYPTO_r_[un]lock).
7329 *) A first attempt at creating official support for shared
7330 libraries through configuration. I've kept it so the
7331 default is static libraries only, and the OpenSSL programs
7332 are always statically linked for now, but there are
7333 preparations for dynamic linking in place.
7334 This has been tested on Linux and Tru64.
7337 *) Randomness polling function for Win9x, as described in:
7338 Peter Gutmann, Software Generation of Practically Strong
7342 *) Fix so PRNG is seeded in req if using an already existing
7346 *) New options to smime application. -inform and -outform
7347 allow alternative formats for the S/MIME message including
7348 PEM and DER. The -content option allows the content to be
7349 specified separately. This should allow things like Netscape
7350 form signing output easier to verify.
7353 *) Fix the ASN1 encoding of tags using the 'long form'.
7356 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
7357 STRING types. These convert content octets to and from the
7358 underlying type. The actual tag and length octets are
7359 already assumed to have been read in and checked. These
7360 are needed because all other string types have virtually
7361 identical handling apart from the tag. By having versions
7362 of the ASN1 functions that just operate on content octets
7363 IMPLICIT tagging can be handled properly. It also allows
7364 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7365 and ASN1_INTEGER are identical apart from the tag.
7368 *) Change the handling of OID objects as follows:
7370 - New object identifiers are inserted in objects.txt, following
7371 the syntax given in objects.README.
7372 - objects.pl is used to process obj_mac.num and create a new
7374 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7377 This is currently kind of a hack, and the perl code in objects.pl
7378 isn't very elegant, but it works as I intended. The simplest way
7379 to check that it worked correctly is to look in obj_dat.h and
7380 check the array nid_objs and make sure the objects haven't moved
7381 around (this is important!). Additions are OK, as well as
7382 consistent name changes.
7385 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7388 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7389 The given file adds to whatever has already been seeded into the
7390 random pool through the RANDFILE configuration file option or
7391 environment variable, or the default random state file.
7394 *) mkstack.pl now sorts each macro group into lexical order.
7395 Previously the output order depended on the order the files
7396 appeared in the directory, resulting in needless rewriting
7400 *) Patches to make OpenSSL compile under Win32 again. Mostly
7401 work arounds for the VC++ problem that it treats func() as
7402 func(void). Also stripped out the parts of mkdef.pl that
7403 added extra typesafe functions: these no longer exist.
7406 *) Reorganisation of the stack code. The macros are now all
7407 collected in safestack.h . Each macro is defined in terms of
7408 a "stack macro" of the form SKM_<name>(type, a, b). The
7409 DEBUG_SAFESTACK is now handled in terms of function casts,
7410 this has the advantage of retaining type safety without the
7411 use of additional functions. If DEBUG_SAFESTACK is not defined
7412 then the non typesafe macros are used instead. Also modified the
7413 mkstack.pl script to handle the new form. Needs testing to see
7414 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7415 the default if no major problems. Similar behaviour for ASN1_SET_OF
7416 and PKCS12_STACK_OF.
7419 *) When some versions of IIS use the 'NET' form of private key the
7420 key derivation algorithm is different. Normally MD5(password) is
7421 used as a 128 bit RC4 key. In the modified case
7422 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
7423 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7424 as the old Netscape_RSA functions except they have an additional
7425 'sgckey' parameter which uses the modified algorithm. Also added
7426 an -sgckey command line option to the rsa utility. Thanks to
7427 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7428 algorithm to openssl-dev.
7431 *) The evp_local.h macros were using 'c.##kname' which resulted in
7432 invalid expansion on some systems (SCO 5.0.5 for example).
7433 Corrected to 'c.kname'.
7434 [Phillip Porch <root@theporch.com>]
7436 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7437 a STACK of email addresses from a certificate or request, these look
7438 in the subject name and the subject alternative name extensions and
7439 omit any duplicate addresses.
7442 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7443 This makes DSA verification about 2 % faster.
7446 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7447 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7448 plus overhead for 1024 bit moduli).
7449 This makes exponentiations about 0.5 % faster for 1024 bit
7450 exponents (as measured by "openssl speed rsa2048").
7453 *) Rename memory handling macros to avoid conflicts with other
7455 Malloc => OPENSSL_malloc
7456 Malloc_locked => OPENSSL_malloc_locked
7457 Realloc => OPENSSL_realloc
7458 Free => OPENSSL_free
7461 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7462 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7465 *) CygWin32 support.
7466 [John Jarvie <jjarvie@newsguy.com>]
7468 *) The type-safe stack code has been rejigged. It is now only compiled
7469 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7470 by default all type-specific stack functions are "#define"d back to
7471 standard stack functions. This results in more streamlined output
7472 but retains the type-safety checking possibilities of the original
7476 *) The STACK code has been cleaned up, and certain type declarations
7477 that didn't make a lot of sense have been brought in line. This has
7478 also involved a cleanup of sorts in safestack.h to more correctly
7479 map type-safe stack functions onto their plain stack counterparts.
7480 This work has also resulted in a variety of "const"ifications of
7481 lots of the code, especially "_cmp" operations which should normally
7482 be prototyped with "const" parameters anyway.
7485 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7486 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7487 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7488 where all of 'md' is used each time the PRNG is used, but 'state'
7489 is used only indexed by a cyclic counter. As entropy may not be
7490 well distributed from the beginning, 'md' is important as a
7491 chaining variable. However, the output function chains only half
7492 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7493 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7494 in all of 'state' being rewritten, with the new values depending
7495 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7498 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7499 the handshake is continued after ssl_verify_cert_chain();
7500 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7501 can lead to 'unexplainable' connection aborts later.
7502 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7504 *) Major EVP API cipher revision.
7505 Add hooks for extra EVP features. This allows various cipher
7506 parameters to be set in the EVP interface. Support added for variable
7507 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7508 setting of RC2 and RC5 parameters.
7510 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7513 Remove lots of duplicated code from the EVP library. For example *every*
7514 cipher init() function handles the 'iv' in the same way according to the
7515 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7516 for CFB and OFB modes they zero ctx->num.
7518 New functionality allows removal of S/MIME code RC2 hack.
7520 Most of the routines have the same form and so can be declared in terms
7523 By shifting this to the top level EVP_CipherInit() it can be removed from
7524 all individual ciphers. If the cipher wants to handle IVs or keys
7525 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7528 Change lots of functions like EVP_EncryptUpdate() to now return a
7529 value: although software versions of the algorithms cannot fail
7530 any installed hardware versions can.
7533 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7534 this option is set, tolerate broken clients that send the negotiated
7535 protocol version number instead of the requested protocol version
7539 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7540 i.e. non-zero for export ciphersuites, zero otherwise.
7541 Previous versions had this flag inverted, inconsistent with
7542 rsa_tmp_cb (..._TMP_RSA_CB).
7543 [Bodo Moeller; problem reported by Amit Chopra]
7545 *) Add missing DSA library text string. Work around for some IIS
7546 key files with invalid SEQUENCE encoding.
7549 *) Add a document (doc/standards.txt) that list all kinds of standards
7550 and so on that are implemented in OpenSSL.
7553 *) Enhance c_rehash script. Old version would mishandle certificates
7554 with the same subject name hash and wouldn't handle CRLs at all.
7555 Added -fingerprint option to crl utility, to support new c_rehash
7559 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7562 *) Fix for SSL server purpose checking. Server checking was
7563 rejecting certificates which had extended key usage present
7564 but no ssl client purpose.
7565 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7567 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7568 is a little unclear about how a blank password is handled.
7569 Since the password in encoded as a BMPString with terminating
7570 double NULL a zero length password would end up as just the
7571 double NULL. However no password at all is different and is
7572 handled differently in the PKCS#12 key generation code. NS
7573 treats a blank password as zero length. MSIE treats it as no
7574 password on export: but it will try both on import. We now do
7575 the same: PKCS12_parse() tries zero length and no password if
7576 the password is set to "" or NULL (NULL is now a valid password:
7577 it wasn't before) as does the pkcs12 application.
7580 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7581 perror when PEM_read_bio_X509_REQ fails, the error message must
7582 be obtained from the error queue.
7585 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7586 it in ERR_remove_state if appropriate, and change ERR_get_state
7587 accordingly to avoid race conditions (this is necessary because
7588 thread_hash is no longer constant once set).
7591 *) Bugfix for linux-elf makefile.one.
7594 *) RSA_get_default_method() will now cause a default
7595 RSA_METHOD to be chosen if one doesn't exist already.
7596 Previously this was only set during a call to RSA_new()
7597 or RSA_new_method(NULL) meaning it was possible for
7598 RSA_get_default_method() to return NULL.
7601 *) Added native name translation to the existing DSO code
7602 that will convert (if the flag to do so is set) filenames
7603 that are sufficiently small and have no path information
7604 into a canonical native form. Eg. "blah" converted to
7605 "libblah.so" or "blah.dll" etc.
7608 *) New function ERR_error_string_n(e, buf, len) which is like
7609 ERR_error_string(e, buf), but writes at most 'len' bytes
7610 including the 0 terminator. For ERR_error_string_n, 'buf'
7612 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7614 *) CONF library reworked to become more general. A new CONF
7615 configuration file reader "class" is implemented as well as a
7616 new functions (NCONF_*, for "New CONF") to handle it. The now
7617 old CONF_* functions are still there, but are reimplemented to
7618 work in terms of the new functions. Also, a set of functions
7619 to handle the internal storage of the configuration data is
7620 provided to make it easier to write new configuration file
7621 reader "classes" (I can definitely see something reading a
7622 configuration file in XML format, for example), called _CONF_*,
7623 or "the configuration storage API"...
7625 The new configuration file reading functions are:
7627 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7628 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7630 NCONF_default, NCONF_WIN32
7632 NCONF_dump_fp, NCONF_dump_bio
7634 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7635 NCONF_new creates a new CONF object. This works in the same way
7636 as other interfaces in OpenSSL, like the BIO interface.
7637 NCONF_dump_* dump the internal storage of the configuration file,
7638 which is useful for debugging. All other functions take the same
7639 arguments as the old CONF_* functions wth the exception of the
7640 first that must be a `CONF *' instead of a `LHASH *'.
7642 To make it easer to use the new classes with the old CONF_* functions,
7643 the function CONF_set_default_method is provided.
7646 *) Add '-tls1' option to 'openssl ciphers', which was already
7647 mentioned in the documentation but had not been implemented.
7648 (This option is not yet really useful because even the additional
7649 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7652 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7653 OpenSSL-based applications) load shared libraries and bind to
7654 them in a portable way.
7655 [Geoff Thorpe, with contributions from Richard Levitte]
7657 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7659 *) Make sure _lrotl and _lrotr are only used with MSVC.
7661 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7662 (the default implementation of RAND_status).
7664 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7665 to '-clrext' (= clear extensions), as intended and documented.
7666 [Bodo Moeller; inconsistency pointed out by Michael Attili
7669 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7670 was larger than the MD block size.
7671 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7673 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7674 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7675 using the passed key: if the passed key was a private key the result
7676 of X509_print(), for example, would be to print out all the private key
7680 *) des_quad_cksum() byte order bug fix.
7681 [Ulf Möller, using the problem description in krb4-0.9.7, where
7682 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7684 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7686 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7688 *) For easily testing in shell scripts whether some command
7689 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7690 returns with exit code 0 iff no command of the given name is available.
7691 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7692 the output goes to stdout and nothing is printed to stderr.
7693 Additional arguments are always ignored.
7695 Since for each cipher there is a command of the same name,
7696 the 'no-cipher' compilation switches can be tested this way.
7698 ('openssl no-XXX' is not able to detect pseudo-commands such
7699 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7702 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7705 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7706 is set; it will be thrown away anyway because each handshake creates
7708 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7709 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7710 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7711 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7714 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7715 'Q' and 'R' lose their special meanings (quit/renegotiate).
7716 This is part of what -quiet does; unlike -quiet, -ign_eof
7717 does not suppress any output.
7720 *) Add compatibility options to the purpose and trust code. The
7721 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7722 accepts a certificate or CA, this was the previous behaviour,
7723 with all the associated security issues.
7725 X509_TRUST_COMPAT is the old trust behaviour: only and
7726 automatically trust self signed roots in certificate store. A
7727 new trust setting X509_TRUST_DEFAULT is used to specify that
7728 a purpose has no associated trust setting and it should instead
7729 use the value in the default purpose.
7732 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7733 and fix a memory leak.
7736 *) In util/mkerr.pl (which implements 'make errors'), preserve
7737 reason strings from the previous version of the .c file, as
7738 the default to have only downcase letters (and digits) in
7739 automatically generated reasons codes is not always appropriate.
7742 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7743 using strerror. Previously, ERR_reason_error_string() returned
7744 library names as reason strings for SYSerr; but SYSerr is a special
7745 case where small numbers are errno values, not library numbers.
7748 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7749 converts DSA parameters into DH parameters. (When creating parameters,
7750 DSA_generate_parameters is used.)
7753 *) Include 'length' (recommended exponent length) in C code generated
7754 by 'openssl dhparam -C'.
7757 *) The second argument to set_label in perlasm was already being used
7758 so couldn't be used as a "file scope" flag. Moved to third argument
7762 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7763 instead of RAND_bytes for encryption IVs and salts.
7766 *) Include RAND_status() into RAND_METHOD instead of implementing
7767 it only for md_rand.c Otherwise replacing the PRNG by calling
7768 RAND_set_rand_method would be impossible.
7771 *) Don't let DSA_generate_key() enter an infinite loop if the random
7772 number generation fails.
7775 *) New 'rand' application for creating pseudo-random output.
7778 *) Added configuration support for Linux/IA64
7779 [Rolf Haberrecker <rolf@suse.de>]
7781 *) Assembler module support for Mingw32.
7784 *) Shared library support for HPUX (in shlib/).
7785 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7787 *) Shared library support for Solaris gcc.
7788 [Lutz Behnke <behnke@trustcenter.de>]
7790 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7792 *) PKCS7_encrypt() was adding text MIME headers twice because they
7793 were added manually and by SMIME_crlf_copy().
7796 *) In bntest.c don't call BN_rand with zero bits argument.
7797 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7799 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7800 case was implemented. This caused BN_div_recp() to fail occasionally.
7803 *) Add an optional second argument to the set_label() in the perl
7804 assembly language builder. If this argument exists and is set
7805 to 1 it signals that the assembler should use a symbol whose
7806 scope is the entire file, not just the current function. This
7807 is needed with MASM which uses the format label:: for this scope.
7808 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7810 *) Change the ASN1 types so they are typedefs by default. Before
7811 almost all types were #define'd to ASN1_STRING which was causing
7812 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7816 *) Change names of new functions to the new get1/get0 naming
7817 convention: After 'get1', the caller owns a reference count
7818 and has to call ..._free; 'get0' returns a pointer to some
7819 data structure without incrementing reference counters.
7820 (Some of the existing 'get' functions increment a reference
7821 counter, some don't.)
7822 Similarly, 'set1' and 'add1' functions increase reference
7823 counters or duplicate objects.
7826 *) Allow for the possibility of temp RSA key generation failure:
7827 the code used to assume it always worked and crashed on failure.
7830 *) Fix potential buffer overrun problem in BIO_printf().
7831 [Ulf Möller, using public domain code by Patrick Powell; problem
7832 pointed out by David Sacerdote <das33@cornell.edu>]
7834 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7835 RAND_egd() and RAND_status(). In the command line application,
7836 the EGD socket can be specified like a seed file using RANDFILE
7840 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7841 Some CAs (e.g. Verisign) distribute certificates in this form.
7844 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7845 list to exclude them. This means that no special compilation option
7846 is needed to use anonymous DH: it just needs to be included in the
7850 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7851 EVP_MD_type. The old functionality is available in a new macro called
7852 EVP_MD_md(). Change code that uses it and update docs.
7855 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7856 where the 'void *' argument is replaced by a function pointer argument.
7857 Previously 'void *' was abused to point to functions, which works on
7858 many platforms, but is not correct. As these functions are usually
7859 called by macros defined in OpenSSL header files, most source code
7860 should work without changes.
7863 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7864 sections with information on -D... compiler switches used for
7865 compiling the library so that applications can see them. To enable
7866 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7867 must be defined. E.g.,
7868 #define OPENSSL_ALGORITHM_DEFINES
7869 #include <openssl/opensslconf.h>
7870 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7871 [Richard Levitte, Ulf and Bodo Möller]
7873 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7877 *) Change the 'other' type in certificate aux info to a STACK_OF
7878 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7879 the required ASN1 format: arbitrary types determined by an OID.
7882 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7883 argument to 'req'. This is not because the function is newer or
7884 better than others it just uses the work 'NEW' in the certificate
7885 request header lines. Some software needs this.
7888 *) Reorganise password command line arguments: now passwords can be
7889 obtained from various sources. Delete the PEM_cb function and make
7890 it the default behaviour: i.e. if the callback is NULL and the
7891 usrdata argument is not NULL interpret it as a null terminated pass
7892 phrase. If usrdata and the callback are NULL then the pass phrase
7893 is prompted for as usual.
7896 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7897 the support is automatically enabled. The resulting binaries will
7898 autodetect the card and use it if present.
7899 [Ben Laurie and Compaq Inc.]
7901 *) Work around for Netscape hang bug. This sends certificate request
7902 and server done in one record. Since this is perfectly legal in the
7903 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7904 the bugs/SSLv3 entry for more info.
7907 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7910 *) Add -rand argument to smime and pkcs12 applications and read/write
7914 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7917 *) Add command line password options to the remaining applications.
7920 *) Bug fix for BN_div_recp() for numerators with an even number of
7924 *) More tests in bntest.c, and changed test_bn output.
7927 *) ./config recognizes MacOS X now.
7930 *) Bug fix for BN_div() when the first words of num and divsor are
7931 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7934 *) Add support for various broken PKCS#8 formats, and command line
7935 options to produce them.
7938 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7939 get temporary BIGNUMs from a BN_CTX.
7942 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7946 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7947 include a #define from the old name to the new. The original intent
7948 was that statically linked binaries could for example just call
7949 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7950 link with digests. This never worked becayse SSLeay_add_all_digests()
7951 and SSLeay_add_all_ciphers() were in the same source file so calling
7952 one would link with the other. They are now in separate source files.
7955 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7958 *) Use a less unusual form of the Miller-Rabin primality test (it used
7959 a binary algorithm for exponentiation integrated into the Miller-Rabin
7960 loop, our standard modexp algorithms are faster).
7963 *) Support for the EBCDIC character set completed.
7964 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7966 *) Source code cleanups: use const where appropriate, eliminate casts,
7967 use void * instead of char * in lhash.
7970 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7971 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7972 this the server could overwrite ephemeral keys that the client
7976 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7977 using 50 iterations of the Rabin-Miller test.
7979 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7980 iterations of the Rabin-Miller test as required by the appendix
7981 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7982 As BN_is_prime_fasttest includes trial division, DSA parameter
7983 generation becomes much faster.
7985 This implies a change for the callback functions in DSA_is_prime
7986 and DSA_generate_parameters: The callback function is called once
7987 for each positive witness in the Rabin-Miller test, not just
7988 occasionally in the inner loop; and the parameters to the
7989 callback function now provide an iteration count for the outer
7990 loop rather than for the current invocation of the inner loop.
7991 DSA_generate_parameters additionally can call the callback
7992 function with an 'iteration count' of -1, meaning that a
7993 candidate has passed the trial division test (when q is generated
7994 from an application-provided seed, trial division is skipped).
7997 *) New function BN_is_prime_fasttest that optionally does trial
7998 division before starting the Rabin-Miller test and has
7999 an additional BN_CTX * argument (whereas BN_is_prime always
8000 has to allocate at least one BN_CTX).
8001 'callback(1, -1, cb_arg)' is called when a number has passed the
8002 trial division stage.
8005 *) Fix for bug in CRL encoding. The validity dates weren't being handled
8009 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
8012 *) New function BN_pseudo_rand().
8015 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
8016 bignum version of BN_from_montgomery() with the working code from
8017 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
8021 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
8022 made it impossible to use the same SSL_SESSION data structure in
8023 SSL2 clients in multiple threads.
8026 *) The return value of RAND_load_file() no longer counts bytes obtained
8027 by stat(). RAND_load_file(..., -1) is new and uses the complete file
8028 to seed the PRNG (previously an explicit byte count was required).
8029 [Ulf Möller, Bodo Möller]
8031 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
8032 used (char *) instead of (void *) and had casts all over the place.
8035 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
8038 *) Retain source code compatibility for BN_prime_checks macro:
8039 BN_is_prime(..., BN_prime_checks, ...) now uses
8040 BN_prime_checks_for_size to determine the appropriate number of
8041 Rabin-Miller iterations.
8044 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
8045 DH_CHECK_P_NOT_SAFE_PRIME.
8046 (Check if this is true? OpenPGP calls them "strong".)
8049 *) Merge the functionality of "dh" and "gendh" programs into a new program
8050 "dhparam". The old programs are retained for now but will handle DH keys
8051 (instead of parameters) in future.
8054 *) Make the ciphers, s_server and s_client programs check the return values
8055 when a new cipher list is set.
8058 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
8059 ciphers. Before when the 56bit ciphers were enabled the sorting was
8062 The syntax for the cipher sorting has been extended to support sorting by
8063 cipher-strength (using the strength_bits hard coded in the tables).
8064 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
8066 Fix a bug in the cipher-command parser: when supplying a cipher command
8067 string with an "undefined" symbol (neither command nor alphanumeric
8068 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
8069 an error is flagged.
8071 Due to the strength-sorting extension, the code of the
8072 ssl_create_cipher_list() function was completely rearranged. I hope that
8073 the readability was also increased :-)
8074 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
8076 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
8077 for the first serial number and places 2 in the serial number file. This
8078 avoids problems when the root CA is created with serial number zero and
8079 the first user certificate has the same issuer name and serial number
8083 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
8084 the new code. Add documentation for this stuff.
8087 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
8088 X509_*() to X509at_*() on the grounds that they don't handle X509
8089 structures and behave in an analagous way to the X509v3 functions:
8090 they shouldn't be called directly but wrapper functions should be used
8093 So we also now have some wrapper functions that call the X509at functions
8094 when passed certificate requests. (TO DO: similar things can be done with
8095 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
8096 things. Some of these need some d2i or i2d and print functionality
8097 because they handle more complex structures.)
8100 *) Add missing #ifndefs that caused missing symbols when building libssl
8101 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
8102 NO_RSA in ssl/s2*.c.
8103 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
8105 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
8106 has a return value which indicates the quality of the random data
8107 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
8108 error queue. New function RAND_pseudo_bytes() generates output that is
8109 guaranteed to be unique but not unpredictable. RAND_add is like
8110 RAND_seed, but takes an extra argument for an entropy estimate
8111 (RAND_seed always assumes full entropy).
8114 *) Do more iterations of Rabin-Miller probable prime test (specifically,
8115 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
8116 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
8117 in crypto/bn/bn_prime.c for the complete table). This guarantees a
8118 false-positive rate of at most 2^-80 for random input.
8121 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
8124 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
8125 in the 0.9.5 release), this returns the chain
8126 from an X509_CTX structure with a dup of the stack and all
8127 the X509 reference counts upped: so the stack will exist
8128 after X509_CTX_cleanup() has been called. Modify pkcs12.c
8131 Also make SSL_SESSION_print() print out the verify return
8135 *) Add manpage for the pkcs12 command. Also change the default
8136 behaviour so MAC iteration counts are used unless the new
8137 -nomaciter option is used. This improves file security and
8138 only older versions of MSIE (4.0 for example) need it.
8141 *) Honor the no-xxx Configure options when creating .DEF files.
8144 *) Add PKCS#10 attributes to field table: challengePassword,
8145 unstructuredName and unstructuredAddress. These are taken from
8146 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
8147 international characters are used.
8149 More changes to X509_ATTRIBUTE code: allow the setting of types
8150 based on strings. Remove the 'loc' parameter when adding
8151 attributes because these will be a SET OF encoding which is sorted
8155 *) Initial changes to the 'req' utility to allow request generation
8156 automation. This will allow an application to just generate a template
8157 file containing all the field values and have req construct the
8160 Initial support for X509_ATTRIBUTE handling. Stacks of these are
8161 used all over the place including certificate requests and PKCS#7
8162 structures. They are currently handled manually where necessary with
8163 some primitive wrappers for PKCS#7. The new functions behave in a
8164 manner analogous to the X509 extension functions: they allow
8165 attributes to be looked up by NID and added.
8167 Later something similar to the X509V3 code would be desirable to
8168 automatically handle the encoding, decoding and printing of the
8169 more complex types. The string types like challengePassword can
8170 be handled by the string table functions.
8172 Also modified the multi byte string table handling. Now there is
8173 a 'global mask' which masks out certain types. The table itself
8174 can use the flag STABLE_NO_MASK to ignore the mask setting: this
8175 is useful when for example there is only one permissible type
8176 (as in countryName) and using the mask might result in no valid
8180 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
8181 SSL_get_peer_finished to allow applications to obtain the latest
8182 Finished messages sent to the peer or expected from the peer,
8183 respectively. (SSL_get_peer_finished is usually the Finished message
8184 actually received from the peer, otherwise the protocol will be aborted.)
8186 As the Finished message are message digests of the complete handshake
8187 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
8188 be used for external authentication procedures when the authentication
8189 provided by SSL/TLS is not desired or is not enough.
8192 *) Enhanced support for Alpha Linux is added. Now ./config checks if
8193 the host supports BWX extension and if Compaq C is present on the
8194 $PATH. Just exploiting of the BWX extension results in 20-30%
8195 performance kick for some algorithms, e.g. DES and RC4 to mention
8196 a couple. Compaq C in turn generates ~20% faster code for MD5 and
8200 *) Add support for MS "fast SGC". This is arguably a violation of the
8201 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
8202 weak crypto and after checking the certificate is SGC a second one
8203 with strong crypto. MS SGC stops the first handshake after receiving
8204 the server certificate message and sends a second client hello. Since
8205 a server will typically do all the time consuming operations before
8206 expecting any further messages from the client (server key exchange
8207 is the most expensive) there is little difference between the two.
8209 To get OpenSSL to support MS SGC we have to permit a second client
8210 hello message after we have sent server done. In addition we have to
8211 reset the MAC if we do get this second client hello.
8214 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
8215 if a DER encoded private key is RSA or DSA traditional format. Changed
8216 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
8217 format DER encoded private key. Newer code should use PKCS#8 format which
8218 has the key type encoded in the ASN1 structure. Added DER private key
8219 support to pkcs8 application.
8222 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
8223 ciphersuites has been selected (as required by the SSL 3/TLS 1
8224 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
8225 is set, we interpret this as a request to violate the specification
8226 (the worst that can happen is a handshake failure, and 'correct'
8227 behaviour would result in a handshake failure anyway).
8230 *) In SSL_CTX_add_session, take into account that there might be multiple
8231 SSL_SESSION structures with the same session ID (e.g. when two threads
8232 concurrently obtain them from an external cache).
8233 The internal cache can handle only one SSL_SESSION with a given ID,
8234 so if there's a conflict, we now throw out the old one to achieve
8238 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
8239 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
8240 some routines that use cipher OIDs: some ciphers do not have OIDs
8241 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
8245 *) Simplify the trust setting structure and code. Now we just have
8246 two sequences of OIDs for trusted and rejected settings. These will
8247 typically have values the same as the extended key usage extension
8248 and any application specific purposes.
8250 The trust checking code now has a default behaviour: it will just
8251 check for an object with the same NID as the passed id. Functions can
8252 be provided to override either the default behaviour or the behaviour
8253 for a given id. SSL client, server and email already have functions
8254 in place for compatibility: they check the NID and also return "trusted"
8255 if the certificate is self signed.
8258 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
8259 traditional format into an EVP_PKEY structure.
8262 *) Add a password callback function PEM_cb() which either prompts for
8263 a password if usr_data is NULL or otherwise assumes it is a null
8264 terminated password. Allow passwords to be passed on command line
8265 environment or config files in a few more utilities.
8268 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
8269 keys. Add some short names for PKCS#8 PBE algorithms and allow them
8270 to be specified on the command line for the pkcs8 and pkcs12 utilities.
8271 Update documentation.
8274 *) Support for ASN1 "NULL" type. This could be handled before by using
8275 ASN1_TYPE but there wasn't any function that would try to read a NULL
8276 and produce an error if it couldn't. For compatibility we also have
8277 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
8278 don't allocate anything because they don't need to.
8281 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
8283 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
8285 *) Rebuild of the memory allocation routines used by OpenSSL code and
8286 possibly others as well. The purpose is to make an interface that
8287 provide hooks so anyone can build a separate set of allocation and
8288 deallocation routines to be used by OpenSSL, for example memory
8289 pool implementations, or something else, which was previously hard
8290 since Malloc(), Realloc() and Free() were defined as macros having
8291 the values malloc, realloc and free, respectively (except for Win32
8292 compilations). The same is provided for memory debugging code.
8293 OpenSSL already comes with functionality to find memory leaks, but
8294 this gives people a chance to debug other memory problems.
8296 With these changes, a new set of functions and macros have appeared:
8298 CRYPTO_set_mem_debug_functions() [F]
8299 CRYPTO_get_mem_debug_functions() [F]
8300 CRYPTO_dbg_set_options() [F]
8301 CRYPTO_dbg_get_options() [F]
8302 CRYPTO_malloc_debug_init() [M]
8304 The memory debug functions are NULL by default, unless the library
8305 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
8306 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
8307 gives the standard debugging functions that come with OpenSSL) or
8308 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
8309 provided by the library user) must be used. When the standard
8310 debugging functions are used, CRYPTO_dbg_set_options can be used to
8311 request additional information:
8312 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
8313 the CRYPTO_MDEBUG_xxx macro when compiling the library.
8315 Also, things like CRYPTO_set_mem_functions will always give the
8316 expected result (the new set of functions is used for allocation
8317 and deallocation) at all times, regardless of platform and compiler
8320 To finish it up, some functions that were never use in any other
8321 way than through macros have a new API and new semantic:
8324 CRYPTO_dbg_realloc()
8327 All macros of value have retained their old syntax.
8328 [Richard Levitte and Bodo Moeller]
8330 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
8331 ordering of SMIMECapabilities wasn't in "strength order" and there
8332 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
8336 *) Some ASN1 types with illegal zero length encoding (INTEGER,
8337 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
8338 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
8340 *) Merge in my S/MIME library for OpenSSL. This provides a simple
8341 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
8342 functionality to handle multipart/signed properly) and a utility
8343 called 'smime' to call all this stuff. This is based on code I
8344 originally wrote for Celo who have kindly allowed it to be
8345 included in OpenSSL.
8348 *) Add variants des_set_key_checked and des_set_key_unchecked of
8349 des_set_key (aka des_key_sched). Global variable des_check_key
8350 decides which of these is called by des_set_key; this way
8351 des_check_key behaves as it always did, but applications and
8352 the library itself, which was buggy for des_check_key == 1,
8353 have a cleaner way to pick the version they need.
8356 *) New function PKCS12_newpass() which changes the password of a
8360 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
8361 dynamic mix. In both cases the ids can be used as an index into the
8362 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8363 functions so they accept a list of the field values and the
8364 application doesn't need to directly manipulate the X509_TRUST
8368 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8372 *) Modify the way the V3 extension code looks up extensions. This now
8373 works in a similar way to the object code: we have some "standard"
8374 extensions in a static table which is searched with OBJ_bsearch()
8375 and the application can add dynamic ones if needed. The file
8376 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8377 updated whenever a new extension is added to the core code and kept
8378 in ext_nid order. There is a simple program 'tabtest.c' which checks
8379 this. New extensions are not added too often so this file can readily
8380 be maintained manually.
8382 There are two big advantages in doing things this way. The extensions
8383 can be looked up immediately and no longer need to be "added" using
8384 X509V3_add_standard_extensions(): this function now does nothing.
8385 [Side note: I get *lots* of email saying the extension code doesn't
8386 work because people forget to call this function]
8387 Also no dynamic allocation is done unless new extensions are added:
8388 so if we don't add custom extensions there is no need to call
8389 X509V3_EXT_cleanup().
8392 *) Modify enc utility's salting as follows: make salting the default. Add a
8393 magic header, so unsalted files fail gracefully instead of just decrypting
8394 to garbage. This is because not salting is a big security hole, so people
8395 should be discouraged from doing it.
8398 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8399 digest to be passed on the command line but it only used this
8400 parameter when signing a certificate. Modified so all relevant
8401 operations are affected by the digest parameter including the
8402 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8403 DSA key was used because it didn't fix the digest.
8406 *) Initial certificate chain verify code. Currently tests the untrusted
8407 certificates for consistency with the verify purpose (which is set
8408 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8410 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8411 this is because it will reject chains with invalid extensions whereas
8412 every previous version of OpenSSL and SSLeay made no checks at all.
8414 Trust code: checks the root CA for the relevant trust settings. Trust
8415 settings have an initial value consistent with the verify purpose: e.g.
8416 if the verify purpose is for SSL client use it expects the CA to be
8417 trusted for SSL client use. However the default value can be changed to
8418 permit custom trust settings: one example of this would be to only trust
8419 certificates from a specific "secure" set of CAs.
8421 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8422 which should be used for version portability: especially since the
8423 verify structure is likely to change more often now.
8425 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8426 to set them. If not set then assume SSL clients will verify SSL servers
8429 Two new options to the verify program: -untrusted allows a set of
8430 untrusted certificates to be passed in and -purpose which sets the
8431 intended purpose of the certificate. If a purpose is set then the
8432 new chain verify code is used to check extension consistency.
8435 *) Support for the authority information access extension.
8438 *) Modify RSA and DSA PEM read routines to transparently handle
8439 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8440 public keys in a format compatible with certificate
8441 SubjectPublicKeyInfo structures. Unfortunately there were already
8442 functions called *_PublicKey_* which used various odd formats so
8443 these are retained for compatibility: however the DSA variants were
8444 never in a public release so they have been deleted. Changed dsa/rsa
8445 utilities to handle the new format: note no releases ever handled public
8446 keys so we should be OK.
8448 The primary motivation for this change is to avoid the same fiasco
8449 that dogs private keys: there are several incompatible private key
8450 formats some of which are standard and some OpenSSL specific and
8451 require various evil hacks to allow partial transparent handling and
8452 even then it doesn't work with DER formats. Given the option anything
8453 other than PKCS#8 should be dumped: but the other formats have to
8454 stay in the name of compatibility.
8456 With public keys and the benefit of hindsight one standard format
8457 is used which works with EVP_PKEY, RSA or DSA structures: though
8458 it clearly returns an error if you try to read the wrong kind of key.
8460 Added a -pubkey option to the 'x509' utility to output the public key.
8461 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8462 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8463 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8464 that do the same as the EVP_PKEY_assign_*() except they up the
8465 reference count of the added key (they don't "swallow" the
8469 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8470 CRLs would fail if the file contained no certificates or no CRLs:
8471 added a new function to read in both types and return the number
8472 read: this means that if none are read it will be an error. The
8473 DER versions of the certificate and CRL reader would always fail
8474 because it isn't possible to mix certificates and CRLs in DER format
8475 without choking one or the other routine. Changed this to just read
8476 a certificate: this is the best we can do. Also modified the code
8477 in apps/verify.c to take notice of return codes: it was previously
8478 attempting to read in certificates from NULL pointers and ignoring
8479 any errors: this is one reason why the cert and CRL reader seemed
8480 to work. It doesn't check return codes from the default certificate
8481 routines: these may well fail if the certificates aren't installed.
8484 *) Code to support otherName option in GeneralName.
8487 *) First update to verify code. Change the verify utility
8488 so it warns if it is passed a self signed certificate:
8489 for consistency with the normal behaviour. X509_verify
8490 has been modified to it will now verify a self signed
8491 certificate if *exactly* the same certificate appears
8492 in the store: it was previously impossible to trust a
8493 single self signed certificate. This means that:
8494 openssl verify ss.pem
8495 now gives a warning about a self signed certificate but
8496 openssl verify -CAfile ss.pem ss.pem
8500 *) For servers, store verify_result in SSL_SESSION data structure
8501 (and add it to external session representation).
8502 This is needed when client certificate verifications fails,
8503 but an application-provided verification callback (set by
8504 SSL_CTX_set_cert_verify_callback) allows accepting the session
8505 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8506 but returns 1): When the session is reused, we have to set
8507 ssl->verify_result to the appropriate error code to avoid
8509 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8511 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8512 case in PKCS7_dataInit() where the signed PKCS7 structure
8513 didn't contain any existing data because it was being created.
8514 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8516 *) Add a salt to the key derivation routines in enc.c. This
8517 forms the first 8 bytes of the encrypted file. Also add a
8518 -S option to allow a salt to be input on the command line.
8521 *) New function X509_cmp(). Oddly enough there wasn't a function
8522 to compare two certificates. We do this by working out the SHA1
8523 hash and comparing that. X509_cmp() will be needed by the trust
8527 *) SSL_get1_session() is like SSL_get_session(), but increments
8528 the reference count in the SSL_SESSION returned.
8529 [Geoff Thorpe <geoff@eu.c2.net>]
8531 *) Fix for 'req': it was adding a null to request attributes.
8532 Also change the X509_LOOKUP and X509_INFO code to handle
8533 certificate auxiliary information.
8536 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8540 *) Add the possibility to add extra information to the memory leak
8541 detecting output, to form tracebacks, showing from where each
8542 allocation was originated: CRYPTO_push_info("constant string") adds
8543 the string plus current file name and line number to a per-thread
8544 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8545 is like calling CYRPTO_pop_info() until the stack is empty.
8546 Also updated memory leak detection code to be multi-thread-safe.
8549 *) Add options -text and -noout to pkcs7 utility and delete the
8550 encryption options which never did anything. Update docs.
8553 *) Add options to some of the utilities to allow the pass phrase
8554 to be included on either the command line (not recommended on
8555 OSes like Unix) or read from the environment. Update the
8556 manpages and fix a few bugs.
8559 *) Add a few manpages for some of the openssl commands.
8562 *) Fix the -revoke option in ca. It was freeing up memory twice,
8563 leaking and not finding already revoked certificates.
8566 *) Extensive changes to support certificate auxiliary information.
8567 This involves the use of X509_CERT_AUX structure and X509_AUX
8568 functions. An X509_AUX function such as PEM_read_X509_AUX()
8569 can still read in a certificate file in the usual way but it
8570 will also read in any additional "auxiliary information". By
8571 doing things this way a fair degree of compatibility can be
8572 retained: existing certificates can have this information added
8573 using the new 'x509' options.
8575 Current auxiliary information includes an "alias" and some trust
8576 settings. The trust settings will ultimately be used in enhanced
8577 certificate chain verification routines: currently a certificate
8578 can only be trusted if it is self signed and then it is trusted
8582 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8583 The problem was that one of the replacement routines had not been working
8584 since SSLeay releases. For now the offending routine has been replaced
8585 with non-optimised assembler. Even so, this now gives around 95%
8586 performance improvement for 1024 bit RSA signs.
8589 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8590 handling. Most clients have the effective key size in bits equal to
8591 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8592 A few however don't do this and instead use the size of the decrypted key
8593 to determine the RC2 key length and the AlgorithmIdentifier to determine
8594 the effective key length. In this case the effective key length can still
8595 be 40 bits but the key length can be 168 bits for example. This is fixed
8596 by manually forcing an RC2 key into the EVP_PKEY structure because the
8597 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8598 the key length and effective key length are equal.
8601 *) Add a bunch of functions that should simplify the creation of
8602 X509_NAME structures. Now you should be able to do:
8603 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8604 and have it automatically work out the correct field type and fill in
8605 the structures. The more adventurous can try:
8606 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8607 and it will (hopefully) work out the correct multibyte encoding.
8610 *) Change the 'req' utility to use the new field handling and multibyte
8611 copy routines. Before the DN field creation was handled in an ad hoc
8612 way in req, ca, and x509 which was rather broken and didn't support
8613 BMPStrings or UTF8Strings. Since some software doesn't implement
8614 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8615 using the dirstring_type option. See the new comment in the default
8616 openssl.cnf for more info.
8619 *) Make crypto/rand/md_rand.c more robust:
8620 - Assure unique random numbers after fork().
8621 - Make sure that concurrent threads access the global counter and
8622 md serializably so that we never lose entropy in them
8623 or use exactly the same state in multiple threads.
8624 Access to the large state is not always serializable because
8625 the additional locking could be a performance killer, and
8626 md should be large enough anyway.
8629 *) New file apps/app_rand.c with commonly needed functionality
8630 for handling the random seed file.
8632 Use the random seed file in some applications that previously did not:
8634 dsaparam -genkey (which also ignored its '-rand' option),
8637 x509 (when signing).
8638 Except on systems with /dev/urandom, it is crucial to have a random
8639 seed file at least for key creation, DSA signing, and for DH exchanges;
8640 for RSA signatures we could do without one.
8642 gendh and gendsa (unlike genrsa) used to read only the first byte
8643 of each file listed in the '-rand' option. The function as previously
8644 found in genrsa is now in app_rand.c and is used by all programs
8645 that support '-rand'.
8648 *) In RAND_write_file, use mode 0600 for creating files;
8649 don't just chmod when it may be too late.
8652 *) Report an error from X509_STORE_load_locations
8653 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8656 *) New function ASN1_mbstring_copy() this copies a string in either
8657 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8658 into an ASN1_STRING type. A mask of permissible types is passed
8659 and it chooses the "minimal" type to use or an error if not type
8663 *) Add function equivalents to the various macros in asn1.h. The old
8664 macros are retained with an M_ prefix. Code inside the library can
8665 use the M_ macros. External code (including the openssl utility)
8666 should *NOT* in order to be "shared library friendly".
8669 *) Add various functions that can check a certificate's extensions
8670 to see if it usable for various purposes such as SSL client,
8671 server or S/MIME and CAs of these types. This is currently
8672 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8673 verification. Also added a -purpose flag to x509 utility to
8674 print out all the purposes.
8677 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8681 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8682 for, obtain and decode and extension and obtain its critical flag.
8683 This allows all the necessary extension code to be handled in a
8684 single function call.
8687 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8688 platforms. See crypto/rc4/rc4_enc.c for further details.
8691 *) New -noout option to asn1parse. This causes no output to be produced
8692 its main use is when combined with -strparse and -out to extract data
8693 from a file (which may not be in ASN.1 format).
8696 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8697 when producing the local key id.
8698 [Richard Levitte <levitte@stacken.kth.se>]
8700 *) New option -dhparam in s_server. This allows a DH parameter file to be
8701 stated explicitly. If it is not stated then it tries the first server
8702 certificate file. The previous behaviour hard coded the filename
8706 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8707 a public key to be input or output. For example:
8708 openssl rsa -in key.pem -pubout -out pubkey.pem
8709 Also added necessary DSA public key functions to handle this.
8712 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8713 in the message. This was handled by allowing
8714 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8715 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8717 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8718 to the end of the strings whereas this didn't. This would cause problems
8719 if strings read with d2i_ASN1_bytes() were later modified.
8720 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8722 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8723 data and it contains EOF it will end up returning an error. This is
8724 caused by input 46 bytes long. The cause is due to the way base64
8725 BIOs find the start of base64 encoded data. They do this by trying a
8726 trial decode on each line until they find one that works. When they
8727 do a flag is set and it starts again knowing it can pass all the
8728 data directly through the decoder. Unfortunately it doesn't reset
8729 the context it uses. This means that if EOF is reached an attempt
8730 is made to pass two EOFs through the context and this causes the
8731 resulting error. This can also cause other problems as well. As is
8732 usual with these problems it takes *ages* to find and the fix is
8733 trivial: move one line.
8734 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8736 *) Ugly workaround to get s_client and s_server working under Windows. The
8737 old code wouldn't work because it needed to select() on sockets and the
8738 tty (for keypresses and to see if data could be written). Win32 only
8739 supports select() on sockets so we select() with a 1s timeout on the
8740 sockets and then see if any characters are waiting to be read, if none
8741 are present then we retry, we also assume we can always write data to
8742 the tty. This isn't nice because the code then blocks until we've
8743 received a complete line of data and it is effectively polling the
8744 keyboard at 1s intervals: however it's quite a bit better than not
8745 working at all :-) A dedicated Windows application might handle this
8746 with an event loop for example.
8749 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8750 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8751 will be called when RSA_sign() and RSA_verify() are used. This is useful
8752 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8753 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8754 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8755 This necessitated the support of an extra signature type NID_md5_sha1
8756 for SSL signatures and modifications to the SSL library to use it instead
8757 of calling RSA_public_decrypt() and RSA_private_encrypt().
8760 *) Add new -verify -CAfile and -CApath options to the crl program, these
8761 will lookup a CRL issuers certificate and verify the signature in a
8762 similar way to the verify program. Tidy up the crl program so it
8763 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8764 less strict. It will now permit CRL extensions even if it is not
8765 a V2 CRL: this will allow it to tolerate some broken CRLs.
8768 *) Initialize all non-automatic variables each time one of the openssl
8769 sub-programs is started (this is necessary as they may be started
8770 multiple times from the "OpenSSL>" prompt).
8771 [Lennart Bang, Bodo Moeller]
8773 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8774 removing all other RSA functionality (this is what NO_RSA does). This
8775 is so (for example) those in the US can disable those operations covered
8776 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8780 *) Non-copying interface to BIO pairs.
8781 (still largely untested)
8784 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8785 ASCII string. This was handled independently in various places before.
8788 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8789 UTF8 strings a character at a time.
8792 *) Use client_version from client hello to select the protocol
8793 (s23_srvr.c) and for RSA client key exchange verification
8794 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8797 *) Add various utility functions to handle SPKACs, these were previously
8798 handled by poking round in the structure internals. Added new function
8799 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8800 print, verify and generate SPKACs. Based on an original idea from
8801 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8804 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8807 *) Allow the config file extension section to be overwritten on the
8808 command line. Based on an original idea from Massimiliano Pala
8809 <madwolf@comune.modena.it>. The new option is called -extensions
8810 and can be applied to ca, req and x509. Also -reqexts to override
8811 the request extensions in req and -crlexts to override the crl extensions
8815 *) Add new feature to the SPKAC handling in ca. Now you can include
8816 the same field multiple times by preceding it by "XXXX." for example:
8819 this is the same syntax as used in the req config file.
8822 *) Allow certificate extensions to be added to certificate requests. These
8823 are specified in a 'req_extensions' option of the req section of the
8824 config file. They can be printed out with the -text option to req but
8825 are otherwise ignored at present.
8828 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8829 data read consists of only the final block it would not decrypted because
8830 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8831 A misplaced 'break' also meant the decrypted final block might not be
8832 copied until the next read.
8835 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8836 a few extra parameters to the DH structure: these will be useful if
8837 for example we want the value of 'q' or implement X9.42 DH.
8840 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8841 provides hooks that allow the default DSA functions or functions on a
8842 "per key" basis to be replaced. This allows hardware acceleration and
8843 hardware key storage to be handled without major modification to the
8844 library. Also added low level modexp hooks and CRYPTO_EX structure and
8845 associated functions.
8848 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8849 as "read only": it can't be written to and the buffer it points to will
8850 not be freed. Reading from a read only BIO is much more efficient than
8851 a normal memory BIO. This was added because there are several times when
8852 an area of memory needs to be read from a BIO. The previous method was
8853 to create a memory BIO and write the data to it, this results in two
8854 copies of the data and an O(n^2) reading algorithm. There is a new
8855 function BIO_new_mem_buf() which creates a read only memory BIO from
8856 an area of memory. Also modified the PKCS#7 routines to use read only
8860 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8861 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8862 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8863 but a retry condition occured while trying to read the rest.
8866 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8867 NID_pkcs7_encrypted by default: this was wrong since this should almost
8868 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8869 the encrypted data type: this is a more sensible place to put it and it
8870 allows the PKCS#12 code to be tidied up that duplicated this
8874 *) Changed obj_dat.pl script so it takes its input and output files on
8875 the command line. This should avoid shell escape redirection problems
8879 *) Initial support for certificate extension requests, these are included
8880 in things like Xenroll certificate requests. Included functions to allow
8881 extensions to be obtained and added.
8884 *) -crlf option to s_client and s_server for sending newlines as
8885 CRLF (as required by many protocols).
8888 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8890 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8891 [Ralf S. Engelschall]
8893 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8894 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8896 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8900 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8901 DH parameters/keys (q is lost during that conversion, but the resulting
8902 DH parameters contain its length).
8904 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8905 much faster than DH_generate_parameters (which creates parameters
8906 where p = 2*q + 1), and also the smaller q makes DH computations
8907 much more efficient (160-bit exponentiation instead of 1024-bit
8908 exponentiation); so this provides a convenient way to support DHE
8909 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8910 utter importance to use
8911 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8913 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8914 when such DH parameters are used, because otherwise small subgroup
8915 attacks may become possible!
8918 *) Avoid memory leak in i2d_DHparams.
8921 *) Allow the -k option to be used more than once in the enc program:
8922 this allows the same encrypted message to be read by multiple recipients.
8925 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8926 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8927 it will always use the numerical form of the OID, even if it has a short
8931 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8932 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8933 otherwise bn_mod_exp was called. In the case of hardware keys for example
8934 no private key components need be present and it might store extra data
8935 in the RSA structure, which cannot be accessed from bn_mod_exp.
8936 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8937 private key operations.
8940 *) Added support for SPARC Linux.
8943 *) pem_password_cb function type incompatibly changed from
8944 typedef int pem_password_cb(char *buf, int size, int rwflag);
8946 ....(char *buf, int size, int rwflag, void *userdata);
8947 so that applications can pass data to their callbacks:
8948 The PEM[_ASN1]_{read,write}... functions and macros now take an
8949 additional void * argument, which is just handed through whenever
8950 the password callback is called.
8951 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8953 New function SSL_CTX_set_default_passwd_cb_userdata.
8955 Compatibility note: As many C implementations push function arguments
8956 onto the stack in reverse order, the new library version is likely to
8957 interoperate with programs that have been compiled with the old
8958 pem_password_cb definition (PEM_whatever takes some data that
8959 happens to be on the stack as its last argument, and the callback
8960 just ignores this garbage); but there is no guarantee whatsoever that
8963 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8964 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8965 problems not only on Windows, but also on some Unix platforms.
8966 To avoid problematic command lines, these definitions are now in an
8967 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8968 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8971 *) MIPS III/IV assembler module is reimplemented.
8974 *) More DES library cleanups: remove references to srand/rand and
8975 delete an unused file.
8978 *) Add support for the the free Netwide assembler (NASM) under Win32,
8979 since not many people have MASM (ml) and it can be hard to obtain.
8980 This is currently experimental but it seems to work OK and pass all
8981 the tests. Check out INSTALL.W32 for info.
8984 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8985 without temporary keys kept an extra copy of the server key,
8986 and connections with temporary keys did not free everything in case
8990 *) New function RSA_check_key and new openssl rsa option -check
8991 for verifying the consistency of RSA keys.
8992 [Ulf Moeller, Bodo Moeller]
8994 *) Various changes to make Win32 compile work:
8995 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8996 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8997 comparison" warnings.
8998 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
9001 *) Add a debugging option to PKCS#5 v2 key generation function: when
9002 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
9003 derived keys are printed to stderr.
9006 *) Copy the flags in ASN1_STRING_dup().
9007 [Roman E. Pavlov <pre@mo.msk.ru>]
9009 *) The x509 application mishandled signing requests containing DSA
9010 keys when the signing key was also DSA and the parameters didn't match.
9012 It was supposed to omit the parameters when they matched the signing key:
9013 the verifying software was then supposed to automatically use the CA's
9014 parameters if they were absent from the end user certificate.
9016 Omitting parameters is no longer recommended. The test was also
9017 the wrong way round! This was probably due to unusual behaviour in
9018 EVP_cmp_parameters() which returns 1 if the parameters match.
9019 This meant that parameters were omitted when they *didn't* match and
9020 the certificate was useless. Certificates signed with 'ca' didn't have
9022 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
9024 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
9025 The interface is as follows:
9026 Applications can use
9027 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
9028 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
9029 "off" is now the default.
9030 The library internally uses
9031 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
9032 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
9033 to disable memory-checking temporarily.
9035 Some inconsistent states that previously were possible (and were
9036 even the default) are now avoided.
9038 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
9039 with each memory chunk allocated; this is occasionally more helpful
9040 than just having a counter.
9042 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
9044 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
9048 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
9049 which largely parallels "options", but is for changing API behaviour,
9050 whereas "options" are about protocol behaviour.
9051 Initial "mode" flags are:
9053 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
9054 a single record has been written.
9055 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
9056 retries use the same buffer location.
9057 (But all of the contents must be
9061 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
9064 *) Fix problems with no-hmac etc.
9065 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
9067 *) New functions RSA_get_default_method(), RSA_set_method() and
9068 RSA_get_method(). These allows replacement of RSA_METHODs without having
9069 to mess around with the internals of an RSA structure.
9072 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
9073 Also really enable memory leak checks in openssl.c and in some
9075 [Chad C. Mulligan, Bodo Moeller]
9077 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
9078 up the length of negative integers. This has now been simplified to just
9079 store the length when it is first determined and use it later, rather
9080 than trying to keep track of where data is copied and updating it to
9082 [Steve Henson, reported by Brien Wheeler
9083 <bwheeler@authentica-security.com>]
9085 *) Add a new function PKCS7_signatureVerify. This allows the verification
9086 of a PKCS#7 signature but with the signing certificate passed to the
9087 function itself. This contrasts with PKCS7_dataVerify which assumes the
9088 certificate is present in the PKCS#7 structure. This isn't always the
9089 case: certificates can be omitted from a PKCS#7 structure and be
9090 distributed by "out of band" means (such as a certificate database).
9093 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
9094 function prototypes in pem.h, also change util/mkdef.pl to add the
9095 necessary function names.
9098 *) mk1mf.pl (used by Windows builds) did not properly read the
9099 options set by Configure in the top level Makefile, and Configure
9100 was not even able to write more than one option correctly.
9101 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
9104 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
9105 file to be loaded from a BIO or FILE pointer. The BIO version will
9106 for example allow memory BIOs to contain config info.
9109 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
9110 Whoever hopes to achieve shared-library compatibility across versions
9111 must use this, not the compile-time macro.
9112 (Exercise 0.9.4: Which is the minimum library version required by
9114 Note: All this applies only to multi-threaded programs, others don't
9118 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
9119 through a BIO pair triggered the default case, i.e.
9120 SSLerr(...,SSL_R_UNKNOWN_STATE).
9123 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
9124 can use the SSL library even if none of the specific BIOs is
9128 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
9129 for the encoded length.
9130 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
9132 *) Add initial documentation of the X509V3 functions.
9135 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
9136 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
9137 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
9138 secure PKCS#8 private key format with a high iteration count.
9141 *) Fix determination of Perl interpreter: A perl or perl5
9142 _directory_ in $PATH was also accepted as the interpreter.
9143 [Ralf S. Engelschall]
9145 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
9146 wrong with it but it was very old and did things like calling
9147 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
9151 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
9152 to use the new extension code.
9155 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
9156 with macros. This should make it easier to change their form, add extra
9157 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
9161 *) Add to configuration table a new entry that can specify an alternative
9162 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
9163 according to Mark Crispin <MRC@Panda.COM>.
9167 *) DES CBC did not update the IV. Weird.
9170 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
9171 Changing the behaviour of the former might break existing programs --
9172 where IV updating is needed, des_ncbc_encrypt can be used.
9175 *) When bntest is run from "make test" it drives bc to check its
9176 calculations, as well as internally checking them. If an internal check
9177 fails, it needs to cause bc to give a non-zero result or make test carries
9178 on without noticing the failure. Fixed.
9181 *) DES library cleanups.
9184 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
9185 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
9186 ciphers. NOTE: although the key derivation function has been verified
9187 against some published test vectors it has not been extensively tested
9188 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
9192 *) Instead of "mkdir -p", which is not fully portable, use new
9193 Perl script "util/mkdir-p.pl".
9196 *) Rewrite the way password based encryption (PBE) is handled. It used to
9197 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
9198 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
9199 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
9200 the 'parameter' field of the AlgorithmIdentifier is passed to the
9201 underlying key generation function so it must do its own ASN1 parsing.
9202 This has also changed the EVP_PBE_CipherInit() function which now has a
9203 'parameter' argument instead of literal salt and iteration count values
9204 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
9207 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
9208 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
9209 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
9210 KEY" because this clashed with PKCS#8 unencrypted string. Since this
9211 value was just used as a "magic string" and not used directly its
9212 value doesn't matter.
9215 *) Introduce some semblance of const correctness to BN. Shame C doesn't
9219 *) "linux-sparc64" configuration (ultrapenguin).
9220 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
9221 "linux-sparc" configuration.
9222 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
9224 *) config now generates no-xxx options for missing ciphers.
9227 *) Support the EBCDIC character set (work in progress).
9228 File ebcdic.c not yet included because it has a different license.
9229 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9231 *) Support BS2000/OSD-POSIX.
9232 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9234 *) Make callbacks for key generation use void * instead of char *.
9237 *) Make S/MIME samples compile (not yet tested).
9240 *) Additional typesafe stacks.
9243 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
9247 Changes between 0.9.3 and 0.9.3a [29 May 1999]
9249 *) New configuration variant "sco5-gcc".
9251 *) Updated some demos.
9252 [Sean O Riordain, Wade Scholine]
9254 *) Add missing BIO_free at exit of pkcs12 application.
9257 *) Fix memory leak in conf.c.
9260 *) Updates for Win32 to assembler version of MD5.
9263 *) Set #! path to perl in apps/der_chop to where we found it
9264 instead of using a fixed path.
9267 *) SHA library changes for irix64-mips4-cc.
9270 *) Improvements for VMS support.
9274 Changes between 0.9.2b and 0.9.3 [24 May 1999]
9276 *) Bignum library bug fix. IRIX 6 passes "make test" now!
9277 This also avoids the problems with SC4.2 and unpatched SC5.
9278 [Andy Polyakov <appro@fy.chalmers.se>]
9280 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
9281 These are required because of the typesafe stack would otherwise break
9282 existing code. If old code used a structure member which used to be STACK
9283 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
9284 sk_num or sk_value it would produce an error because the num, data members
9285 are not present in STACK_OF. Now it just produces a warning. sk_set
9286 replaces the old method of assigning a value to sk_value
9287 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
9288 that does this will no longer work (and should use sk_set instead) but
9289 this could be regarded as a "questionable" behaviour anyway.
9292 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
9293 correctly handle encrypted S/MIME data.
9296 *) Change type of various DES function arguments from des_cblock
9297 (which means, in function argument declarations, pointer to char)
9298 to des_cblock * (meaning pointer to array with 8 char elements),
9299 which allows the compiler to do more typechecking; it was like
9300 that back in SSLeay, but with lots of ugly casts.
9302 Introduce new type const_des_cblock.
9305 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
9306 problems: find RecipientInfo structure that matches recipient certificate
9307 and initialise the ASN1 structures properly based on passed cipher.
9310 *) Belatedly make the BN tests actually check the results.
9313 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
9314 to and from BNs: it was completely broken. New compilation option
9315 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
9316 key elements as negative integers.
9319 *) Reorganize and speed up MD5.
9320 [Andy Polyakov <appro@fy.chalmers.se>]
9323 [Richard Levitte <richard@levitte.org>]
9325 *) New option -out to asn1parse to allow the parsed structure to be
9326 output to a file. This is most useful when combined with the -strparse
9327 option to examine the output of things like OCTET STRINGS.
9330 *) Make SSL library a little more fool-proof by not requiring any longer
9331 that SSL_set_{accept,connect}_state be called before
9332 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
9333 in many applications because usually everything *appeared* to work as
9334 intended anyway -- now it really works as intended).
9337 *) Move openssl.cnf out of lib/.
9340 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
9341 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
9342 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
9343 [Ralf S. Engelschall]
9345 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
9346 handle PKCS#7 enveloped data properly.
9347 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
9349 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
9350 copying pointers. The cert_st handling is changed by this in
9351 various ways (and thus what used to be known as ctx->default_cert
9352 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
9353 any longer when s->cert does not give us what we need).
9354 ssl_cert_instantiate becomes obsolete by this change.
9355 As soon as we've got the new code right (possibly it already is?),
9356 we have solved a couple of bugs of the earlier code where s->cert
9357 was used as if it could not have been shared with other SSL structures.
9359 Note that using the SSL API in certain dirty ways now will result
9360 in different behaviour than observed with earlier library versions:
9361 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9362 does not influence s as it used to.
9364 In order to clean up things more thoroughly, inside SSL_SESSION
9365 we don't use CERT any longer, but a new structure SESS_CERT
9366 that holds per-session data (if available); currently, this is
9367 the peer's certificate chain and, for clients, the server's certificate
9368 and temporary key. CERT holds only those values that can have
9369 meaningful defaults in an SSL_CTX.
9372 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9373 from the internal representation. Various PKCS#7 fixes: remove some
9374 evil casts and set the enc_dig_alg field properly based on the signing
9378 *) Allow PKCS#12 password to be set from the command line or the
9379 environment. Let 'ca' get its config file name from the environment
9380 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9384 *) Allow certificate policies extension to use an IA5STRING for the
9385 organization field. This is contrary to the PKIX definition but
9386 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9390 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9391 without disallowing inline assembler and the like for non-pedantic builds.
9394 *) Support Borland C++ builder.
9395 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9400 *) SHA-1 cleanups and performance enhancements.
9401 [Andy Polyakov <appro@fy.chalmers.se>]
9403 *) Sparc v8plus assembler for the bignum library.
9404 [Andy Polyakov <appro@fy.chalmers.se>]
9406 *) Accept any -xxx and +xxx compiler options in Configure.
9409 *) Update HPUX configuration.
9412 *) Add missing sk_<type>_unshift() function to safestack.h
9413 [Ralf S. Engelschall]
9415 *) New function SSL_CTX_use_certificate_chain_file that sets the
9416 "extra_cert"s in addition to the certificate. (This makes sense
9417 only for "PEM" format files, as chains as a whole are not
9421 *) Support verify_depth from the SSL API.
9422 x509_vfy.c had what can be considered an off-by-one-error:
9423 Its depth (which was not part of the external interface)
9424 was actually counting the number of certificates in a chain;
9425 now it really counts the depth.
9428 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9429 instead of X509err, which often resulted in confusing error
9430 messages since the error codes are not globally unique
9431 (e.g. an alleged error in ssl3_accept when a certificate
9432 didn't match the private key).
9434 *) New function SSL_CTX_set_session_id_context that allows to set a default
9435 value (so that you don't need SSL_set_session_id_context for each
9436 connection using the SSL_CTX).
9439 *) OAEP decoding bug fix.
9442 *) Support INSTALL_PREFIX for package builders, as proposed by
9446 *) New Configure options "threads" and "no-threads". For systems
9447 where the proper compiler options are known (currently Solaris
9448 and Linux), "threads" is the default.
9451 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9454 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9455 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9456 such as /usr/local/bin.
9459 *) "make linux-shared" to build shared libraries.
9460 [Niels Poppe <niels@netbox.org>]
9462 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9465 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9466 extension adding in x509 utility.
9469 *) Remove NOPROTO sections and error code comments.
9472 *) Partial rewrite of the DEF file generator to now parse the ANSI
9476 *) New Configure options --prefix=DIR and --openssldir=DIR.
9479 *) Complete rewrite of the error code script(s). It is all now handled
9480 by one script at the top level which handles error code gathering,
9481 header rewriting and C source file generation. It should be much better
9482 than the old method: it now uses a modified version of Ulf's parser to
9483 read the ANSI prototypes in all header files (thus the old K&R definitions
9484 aren't needed for error creation any more) and do a better job of
9485 translating function codes into names. The old 'ASN1 error code imbedded
9486 in a comment' is no longer necessary and it doesn't use .err files which
9487 have now been deleted. Also the error code call doesn't have to appear all
9488 on one line (which resulted in some large lines...).
9491 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9494 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9495 0 (which usually indicates a closed connection), but continue reading.
9498 *) Fix some race conditions.
9501 *) Add support for CRL distribution points extension. Add Certificate
9502 Policies and CRL distribution points documentation.
9505 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9508 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9509 8 of keying material. Merlin has also confirmed interop with this fix
9510 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9511 [Merlin Hughes <merlin@baltimore.ie>]
9513 *) Fix lots of warnings.
9514 [Richard Levitte <levitte@stacken.kth.se>]
9516 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9517 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9518 [Richard Levitte <levitte@stacken.kth.se>]
9520 *) Fix problems with sizeof(long) == 8.
9521 [Andy Polyakov <appro@fy.chalmers.se>]
9523 *) Change functions to ANSI C.
9526 *) Fix typos in error codes.
9527 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9529 *) Remove defunct assembler files from Configure.
9532 *) SPARC v8 assembler BIGNUM implementation.
9533 [Andy Polyakov <appro@fy.chalmers.se>]
9535 *) Support for Certificate Policies extension: both print and set.
9536 Various additions to support the r2i method this uses.
9539 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9540 return a const string when you are expecting an allocated buffer.
9543 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9544 types DirectoryString and DisplayText.
9547 *) Add code to allow r2i extensions to access the configuration database,
9548 add an LHASH database driver and add several ctx helper functions.
9551 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9552 fail when they extended the size of a BIGNUM.
9555 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9556 support typesafe stack.
9559 *) Fix typo in SSL_[gs]et_options().
9560 [Nils Frostberg <nils@medcom.se>]
9562 *) Delete various functions and files that belonged to the (now obsolete)
9563 old X509V3 handling code.
9566 *) New Configure option "rsaref".
9569 *) Don't auto-generate pem.h.
9572 *) Introduce type-safe ASN.1 SETs.
9575 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9576 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9578 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9579 that links with OpenSSL (well at least cause lots of warnings), but fear
9580 not: the conversion is trivial, and it eliminates loads of evil casts. A
9581 few STACKed things have been converted already. Feel free to convert more.
9582 In the fullness of time, I'll do away with the STACK type altogether.
9585 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9586 specified in <certfile> by updating the entry in the index.txt file.
9587 This way one no longer has to edit the index.txt file manually for
9588 revoking a certificate. The -revoke option does the gory details now.
9589 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9591 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9592 `-text' option at all and this way the `-noout -text' combination was
9593 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9594 [Ralf S. Engelschall]
9596 *) Make sure a corresponding plain text error message exists for the
9597 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9598 verify callback function determined that a certificate was revoked.
9599 [Ralf S. Engelschall]
9601 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9602 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9603 all available cipers including rc5, which was forgotten until now.
9604 In order to let the testing shell script know which algorithms
9605 are available, a new (up to now undocumented) command
9606 "openssl list-cipher-commands" is used.
9609 *) Bugfix: s_client occasionally would sleep in select() when
9610 it should have checked SSL_pending() first.
9613 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9614 the raw DSA values prior to ASN.1 encoding.
9617 *) Tweaks to Configure
9618 [Niels Poppe <niels@netbox.org>]
9620 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9624 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9627 *) New config option to avoid instructions that are illegal on the 80386.
9628 The default code is faster, but requires at least a 486.
9631 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9632 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9633 same as SSL2_VERSION anyway.
9636 *) New "-showcerts" option for s_client.
9639 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9640 application. Various cleanups and fixes.
9643 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9644 modify error routines to work internally. Add error codes and PBE init
9645 to library startup routines.
9648 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9649 packing functions to asn1 and evp. Changed function names and error
9650 codes along the way.
9653 *) PKCS12 integration: and so it begins... First of several patches to
9654 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9655 objects to objects.h
9658 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9659 and display support for Thawte strong extranet extension.
9662 *) Add LinuxPPC support.
9663 [Jeff Dubrule <igor@pobox.org>]
9665 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9666 bn_div_words in alpha.s.
9667 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9669 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9670 OAEP isn't supported when OpenSSL is built with RSAref.
9671 [Ulf Moeller <ulf@fitug.de>]
9673 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9674 so they no longer are missing under -DNOPROTO.
9675 [Soren S. Jorvang <soren@t.dk>]
9678 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9680 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9681 doesn't work when the session is reused. Coming soon!
9684 *) Fix a security hole, that allows sessions to be reused in the wrong
9685 context thus bypassing client cert protection! All software that uses
9686 client certs and session caches in multiple contexts NEEDS PATCHING to
9687 allow session reuse! A fuller solution is in the works.
9688 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9690 *) Some more source tree cleanups (removed obsolete files
9691 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9692 permission on "config" script to be executable) and a fix for the INSTALL
9694 [Ulf Moeller <ulf@fitug.de>]
9696 *) Remove some legacy and erroneous uses of malloc, free instead of
9698 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9700 *) Make rsa_oaep_test return non-zero on error.
9701 [Ulf Moeller <ulf@fitug.de>]
9703 *) Add support for native Solaris shared libraries. Configure
9704 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9705 if someone would make that last step automatic.
9706 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9708 *) ctx_size was not built with the right compiler during "make links". Fixed.
9711 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9712 except NULL ciphers". This means the default cipher list will no longer
9713 enable NULL ciphers. They need to be specifically enabled e.g. with
9714 the string "DEFAULT:eNULL".
9717 *) Fix to RSA private encryption routines: if p < q then it would
9718 occasionally produce an invalid result. This will only happen with
9719 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9722 *) Be less restrictive and allow also `perl util/perlpath.pl
9723 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9724 because this way one can also use an interpreter named `perl5' (which is
9725 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9726 installed as `perl').
9727 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9729 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9730 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9732 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9733 advapi32.lib to Win32 build and change the pem test comparision
9734 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9735 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9736 and crypto/des/ede_cbcm_enc.c.
9739 *) DES quad checksum was broken on big-endian architectures. Fixed.
9742 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9743 Win32 test batch file so it (might) work again. The Win32 test batch file
9744 is horrible: I feel ill....
9747 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9748 in e_os.h. Audit of header files to check ANSI and non ANSI
9749 sections: 10 functions were absent from non ANSI section and not exported
9750 from Windows DLLs. Fixed up libeay.num for new functions.
9753 *) Make `openssl version' output lines consistent.
9754 [Ralf S. Engelschall]
9756 *) Fix Win32 symbol export lists for BIO functions: Added
9757 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9758 to ms/libeay{16,32}.def.
9759 [Ralf S. Engelschall]
9761 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9762 fine under Unix and passes some trivial tests I've now added. But the
9763 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9764 added to make sure no one expects that this stuff really works in the
9765 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9766 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9768 [Ralf S. Engelschall]
9770 *) Fix the generation of two part addresses in perl.
9771 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9773 *) Add config entry for Linux on MIPS.
9774 [John Tobey <jtobey@channel1.com>]
9776 *) Make links whenever Configure is run, unless we are on Windoze.
9779 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9780 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9784 *) Add a useful kludge to allow package maintainers to specify compiler and
9785 other platforms details on the command line without having to patch the
9786 Configure script everytime: One now can use ``perl Configure
9787 <id>:<details>'', i.e. platform ids are allowed to have details appended
9788 to them (seperated by colons). This is treated as there would be a static
9789 pre-configured entry in Configure's %table under key <id> with value
9790 <details> and ``perl Configure <id>'' is called. So, when you want to
9791 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9792 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9793 now, which overrides the FreeBSD-elf entry on-the-fly.
9794 [Ralf S. Engelschall]
9796 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9799 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9800 on the `perl Configure ...' command line. This way one can compile
9801 OpenSSL libraries with Position Independent Code (PIC) which is needed
9802 for linking it into DSOs.
9803 [Ralf S. Engelschall]
9805 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9809 *) Cleaned up the LICENSE document: The official contact for any license
9810 questions now is the OpenSSL core team under openssl-core@openssl.org.
9811 And add a paragraph about the dual-license situation to make sure people
9812 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9813 to the OpenSSL toolkit.
9814 [Ralf S. Engelschall]
9816 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9817 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9818 Additonally cleaned up the `make links' target: Remove unnecessary
9819 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9820 to speed processing and no longer clutter the display with confusing
9821 stuff. Instead only the actually done links are displayed.
9822 [Ralf S. Engelschall]
9824 *) Permit null encryption ciphersuites, used for authentication only. It used
9825 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9826 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9830 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9831 signed attributes when verifying signatures (this would break them),
9832 the detached data encoding was wrong and public keys obtained using
9833 X509_get_pubkey() weren't freed.
9836 *) Add text documentation for the BUFFER functions. Also added a work around
9837 to a Win95 console bug. This was triggered by the password read stuff: the
9838 last character typed gets carried over to the next fread(). If you were
9839 generating a new cert request using 'req' for example then the last
9840 character of the passphrase would be CR which would then enter the first
9844 *) Added the new `Includes OpenSSL Cryptography Software' button as
9845 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9846 button and can be used by applications based on OpenSSL to show the
9847 relationship to the OpenSSL project.
9848 [Ralf S. Engelschall]
9850 *) Remove confusing variables in function signatures in files
9851 ssl/ssl_lib.c and ssl/ssl.h.
9852 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9854 *) Don't install bss_file.c under PREFIX/include/
9855 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9857 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9858 functions that return function pointers and has support for NT specific
9859 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9860 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9861 unsigned to signed types: this was killing the Win32 compile.
9864 *) Add new certificate file to stack functions,
9865 SSL_add_dir_cert_subjects_to_stack() and
9866 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9867 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9868 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9869 This means that Apache-SSL and similar packages don't have to mess around
9870 to add as many CAs as they want to the preferred list.
9873 *) Experiment with doxygen documentation. Currently only partially applied to
9875 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9876 openssl.doxy as the configuration file.
9879 *) Get rid of remaining C++-style comments which strict C compilers hate.
9880 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9882 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9883 compiled in by default: it has problems with large keys.
9886 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9887 DH private keys and/or callback functions which directly correspond to
9888 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9889 is needed for applications which have to configure certificates on a
9890 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9892 For the RSA certificate situation is makes no difference, but
9893 for the DSA certificate situation this fixes the "no shared cipher"
9894 problem where the OpenSSL cipher selection procedure failed because the
9895 temporary keys were not overtaken from the context and the API provided
9896 no way to reconfigure them.
9897 The new functions now let applications reconfigure the stuff and they
9898 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9899 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9900 non-public-API function ssl_cert_instantiate() is used as a helper
9901 function and also to reduce code redundancy inside ssl_rsa.c.
9902 [Ralf S. Engelschall]
9904 *) Move s_server -dcert and -dkey options out of the undocumented feature
9905 area because they are useful for the DSA situation and should be
9906 recognized by the users.
9907 [Ralf S. Engelschall]
9909 *) Fix the cipher decision scheme for export ciphers: the export bits are
9910 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9911 SSL_EXP_MASK. So, the original variable has to be used instead of the
9912 already masked variable.
9913 [Richard Levitte <levitte@stacken.kth.se>]
9915 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9916 [Richard Levitte <levitte@stacken.kth.se>]
9918 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9919 from `int' to `unsigned int' because it's a length and initialized by
9920 EVP_DigestFinal() which expects an `unsigned int *'.
9921 [Richard Levitte <levitte@stacken.kth.se>]
9923 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9924 script. Instead use the usual Shell->Perl transition trick.
9925 [Ralf S. Engelschall]
9927 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9928 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9929 -noout -modulus' as it's already the case for `openssl rsa -noout
9930 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9931 currently the public key is printed (a decision which was already done by
9932 `openssl dsa -modulus' in the past) which serves a similar purpose.
9933 Additionally the NO_RSA no longer completely removes the whole -modulus
9934 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9936 [Ralf S. Engelschall]
9938 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9939 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9940 [Arne Ansper <arne@ats.cyber.ee>]
9942 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9943 to be added. Now both 'req' and 'ca' can use new objects defined in the
9947 *) Add cool BIO that does syslog (or event log on NT).
9948 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9950 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9951 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9952 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9953 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9956 *) Add preliminary config info for new extension code.
9959 *) Make RSA_NO_PADDING really use no padding.
9960 [Ulf Moeller <ulf@fitug.de>]
9962 *) Generate errors when private/public key check is done.
9965 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9966 for some CRL extensions and new objects added.
9969 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9970 key usage extension and fuller support for authority key id.
9973 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9974 padding method for RSA, which is recommended for new applications in PKCS
9975 #1 v2.0 (RFC 2437, October 1998).
9976 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9977 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9978 against Bleichbacher's attack on RSA.
9979 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9982 *) Updates to the new SSL compression code
9983 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9985 *) Fix so that the version number in the master secret, when passed
9986 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9987 (because the server will not accept higher), that the version number
9988 is 0x03,0x01, not 0x03,0x00
9989 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9991 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9992 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9993 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9996 *) Support for RAW extensions where an arbitrary extension can be
9997 created by including its DER encoding. See apps/openssl.cnf for
10001 *) Make sure latest Perl versions don't interpret some generated C array
10002 code as Perl array code in the crypto/err/err_genc.pl script.
10003 [Lars Weber <3weber@informatik.uni-hamburg.de>]
10005 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
10006 not many people have the assembler. Various Win32 compilation fixes and
10007 update to the INSTALL.W32 file with (hopefully) more accurate Win32
10008 build instructions.
10011 *) Modify configure script 'Configure' to automatically create crypto/date.h
10012 file under Win32 and also build pem.h from pem.org. New script
10013 util/mkfiles.pl to create the MINFO file on environments that can't do a
10014 'make files': perl util/mkfiles.pl >MINFO should work.
10017 *) Major rework of DES function declarations, in the pursuit of correctness
10018 and purity. As a result, many evil casts evaporated, and some weirdness,
10019 too. You may find this causes warnings in your code. Zapping your evil
10020 casts will probably fix them. Mostly.
10023 *) Fix for a typo in asn1.h. Bug fix to object creation script
10024 obj_dat.pl. It considered a zero in an object definition to mean
10025 "end of object": none of the objects in objects.h have any zeros
10026 so it wasn't spotted.
10027 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
10029 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
10030 Masking (CBCM). In the absence of test vectors, the best I have been able
10031 to do is check that the decrypt undoes the encrypt, so far. Send me test
10032 vectors if you have them.
10035 *) Correct calculation of key length for export ciphers (too much space was
10036 allocated for null ciphers). This has not been tested!
10039 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
10040 message is now correct (it understands "crypto" and "ssl" on its
10041 command line). There is also now an "update" option. This will update
10042 the util/ssleay.num and util/libeay.num files with any new functions.
10044 perl util/mkdef.pl crypto ssl update
10045 it will update them.
10048 *) Overhauled the Perl interface (perl/*):
10049 - ported BN stuff to OpenSSL's different BN library
10050 - made the perl/ source tree CVS-aware
10051 - renamed the package from SSLeay to OpenSSL (the files still contain
10052 their history because I've copied them in the repository)
10053 - removed obsolete files (the test scripts will be replaced
10054 by better Test::Harness variants in the future)
10055 [Ralf S. Engelschall]
10057 *) First cut for a very conservative source tree cleanup:
10058 1. merge various obsolete readme texts into doc/ssleay.txt
10059 where we collect the old documents and readme texts.
10060 2. remove the first part of files where I'm already sure that we no
10061 longer need them because of three reasons: either they are just temporary
10062 files which were left by Eric or they are preserved original files where
10063 I've verified that the diff is also available in the CVS via "cvs diff
10064 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
10065 the crypto/md/ stuff).
10066 [Ralf S. Engelschall]
10068 *) More extension code. Incomplete support for subject and issuer alt
10069 name, issuer and authority key id. Change the i2v function parameters
10070 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
10071 what that's for :-) Fix to ASN1 macro which messed up
10072 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
10075 *) Preliminary support for ENUMERATED type. This is largely copied from the
10079 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
10080 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10082 *) Make sure `make rehash' target really finds the `openssl' program.
10083 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10085 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
10086 like to hear about it if this slows down other processors.
10089 *) Add CygWin32 platform information to Configure script.
10090 [Alan Batie <batie@aahz.jf.intel.com>]
10092 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
10093 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
10095 *) New program nseq to manipulate netscape certificate sequences
10098 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
10102 *) Fixes to BN code. Previously the default was to define BN_RECURSION
10103 but the BN code had some problems that would cause failures when
10104 doing certificate verification and some other functions.
10105 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10107 *) Add ASN1 and PEM code to support netscape certificate sequences.
10110 *) Add ASN1 and PEM code to support netscape certificate sequences.
10113 *) Add several PKIX and private extended key usage OIDs.
10116 *) Modify the 'ca' program to handle the new extension code. Modify
10117 openssl.cnf for new extension format, add comments.
10120 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
10121 and add a sample to openssl.cnf so req -x509 now adds appropriate
10125 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
10126 error code, add initial support to X509_print() and x509 application.
10129 *) Takes a deep breath and start addding X509 V3 extension support code. Add
10130 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
10131 stuff is currently isolated and isn't even compiled yet.
10134 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
10135 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
10136 Removed the versions check from X509 routines when loading extensions:
10137 this allows certain broken certificates that don't set the version
10138 properly to be processed.
10141 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
10142 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
10143 can still be regenerated with "make depend".
10146 *) Spelling mistake in C version of CAST-128.
10147 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
10149 *) Changes to the error generation code. The perl script err-code.pl
10150 now reads in the old error codes and retains the old numbers, only
10151 adding new ones if necessary. It also only changes the .err files if new
10152 codes are added. The makefiles have been modified to only insert errors
10153 when needed (to avoid needlessly modifying header files). This is done
10154 by only inserting errors if the .err file is newer than the auto generated
10155 C file. To rebuild all the error codes from scratch (the old behaviour)
10156 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
10157 or delete all the .err files.
10160 *) CAST-128 was incorrectly implemented for short keys. The C version has
10161 been fixed, but is untested. The assembler versions are also fixed, but
10162 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
10163 to regenerate it if needed.
10164 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
10165 Hagino <itojun@kame.net>]
10167 *) File was opened incorrectly in randfile.c.
10168 [Ulf Möller <ulf@fitug.de>]
10170 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
10171 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
10172 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
10173 al: it's just almost always a UTCTime. Note this patch adds new error
10174 codes so do a "make errors" if there are problems.
10177 *) Correct Linux 1 recognition in config.
10178 [Ulf Möller <ulf@fitug.de>]
10180 *) Remove pointless MD5 hash when using DSA keys in ca.
10181 [Anonymous <nobody@replay.com>]
10183 *) Generate an error if given an empty string as a cert directory. Also
10184 generate an error if handed NULL (previously returned 0 to indicate an
10185 error, but didn't set one).
10186 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
10188 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
10191 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
10192 parameters. This was causing a warning which killed off the Win32 compile.
10195 *) Remove C++ style comments from crypto/bn/bn_local.h.
10196 [Neil Costigan <neil.costigan@celocom.com>]
10198 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
10199 based on a text string, looking up short and long names and finally
10200 "dot" format. The "dot" format stuff didn't work. Added new function
10201 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
10202 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
10203 OID is not part of the table.
10206 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
10207 X509_LOOKUP_by_alias().
10210 *) Sort openssl functions by name.
10213 *) Get the gendsa program working (hopefully) and add it to app list. Remove
10214 encryption from sample DSA keys (in case anyone is interested the password
10218 *) Make _all_ *_free functions accept a NULL pointer.
10219 [Frans Heymans <fheymans@isaserver.be>]
10221 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
10223 [Anonymous <nobody@replay.com>]
10225 *) s_server should send the CAfile as acceptable CAs, not its own cert.
10226 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10228 *) Don't blow it for numeric -newkey arguments to apps/req.
10229 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10231 *) Temp key "for export" tests were wrong in s3_srvr.c.
10232 [Anonymous <nobody@replay.com>]
10234 *) Add prototype for temp key callback functions
10235 SSL_CTX_set_tmp_{rsa,dh}_callback().
10238 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
10239 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
10242 *) X509_name_add_entry() freed the wrong thing after an error.
10243 [Arne Ansper <arne@ats.cyber.ee>]
10245 *) rsa_eay.c would attempt to free a NULL context.
10246 [Arne Ansper <arne@ats.cyber.ee>]
10248 *) BIO_s_socket() had a broken should_retry() on Windoze.
10249 [Arne Ansper <arne@ats.cyber.ee>]
10251 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
10252 [Arne Ansper <arne@ats.cyber.ee>]
10254 *) Make sure the already existing X509_STORE->depth variable is initialized
10255 in X509_STORE_new(), but document the fact that this variable is still
10256 unused in the certificate verification process.
10257 [Ralf S. Engelschall]
10259 *) Fix the various library and apps files to free up pkeys obtained from
10260 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
10263 *) Fix reference counting in X509_PUBKEY_get(). This makes
10264 demos/maurice/example2.c work, amongst others, probably.
10265 [Steve Henson and Ben Laurie]
10267 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
10268 `openssl' and second, the shortcut symlinks for the `openssl <command>'
10269 are no longer created. This way we have a single and consistent command
10270 line interface `openssl <command>', similar to `cvs <command>'.
10271 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
10273 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
10274 BIT STRING wrapper always have zero unused bits.
10277 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
10280 *) Make the top-level INSTALL documentation easier to understand.
10283 *) Makefiles updated to exit if an error occurs in a sub-directory
10284 make (including if user presses ^C) [Paul Sutton]
10286 *) Make Montgomery context stuff explicit in RSA data structure.
10289 *) Fix build order of pem and err to allow for generated pem.h.
10292 *) Fix renumbering bug in X509_NAME_delete_entry().
10295 *) Enhanced the err-ins.pl script so it makes the error library number
10296 global and can add a library name. This is needed for external ASN1 and
10297 other error libraries.
10300 *) Fixed sk_insert which never worked properly.
10303 *) Fix ASN1 macros so they can handle indefinite length construted
10304 EXPLICIT tags. Some non standard certificates use these: they can now
10308 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
10309 into a single doc/ssleay.txt bundle. This way the information is still
10310 preserved but no longer messes up this directory. Now it's new room for
10311 the new set of documenation files.
10312 [Ralf S. Engelschall]
10314 *) SETs were incorrectly DER encoded. This was a major pain, because they
10315 shared code with SEQUENCEs, which aren't coded the same. This means that
10316 almost everything to do with SETs or SEQUENCEs has either changed name or
10317 number of arguments.
10318 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
10320 *) Fix test data to work with the above.
10323 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
10324 was already fixed by Eric for 0.9.1 it seems.
10325 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
10327 *) Autodetect FreeBSD3.
10330 *) Fix various bugs in Configure. This affects the following platforms:
10334 unixware-2.0-pentium
10338 *) Eliminate generated files from CVS. Reorder tests to regenerate files
10339 before they are needed.
10342 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
10346 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
10348 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
10349 changed SSLeay to OpenSSL in version strings.
10350 [Ralf S. Engelschall]
10352 *) Some fixups to the top-level documents.
10355 *) Fixed the nasty bug where rsaref.h was not found under compile-time
10356 because the symlink to include/ was missing.
10357 [Ralf S. Engelschall]
10359 *) Incorporated the popular no-RSA/DSA-only patches
10360 which allow to compile a RSA-free SSLeay.
10361 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10363 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10364 when "ssleay" is still not found.
10365 [Ralf S. Engelschall]
10367 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10368 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10370 *) Updated the README file.
10371 [Ralf S. Engelschall]
10373 *) Added various .cvsignore files in the CVS repository subdirs
10374 to make a "cvs update" really silent.
10375 [Ralf S. Engelschall]
10377 *) Recompiled the error-definition header files and added
10378 missing symbols to the Win32 linker tables.
10379 [Ralf S. Engelschall]
10381 *) Cleaned up the top-level documents;
10382 o new files: CHANGES and LICENSE
10383 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10384 o merged COPYRIGHT into LICENSE
10385 o removed obsolete TODO file
10386 o renamed MICROSOFT to INSTALL.W32
10387 [Ralf S. Engelschall]
10389 *) Removed dummy files from the 0.9.1b source tree:
10390 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10391 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10392 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10393 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10394 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10395 [Ralf S. Engelschall]
10397 *) Added various platform portability fixes.
10400 *) The Genesis of the OpenSSL rpject:
10401 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10402 Young and Tim J. Hudson created while they were working for C2Net until
10404 [The OpenSSL Project]
10407 Changes between 0.9.0b and 0.9.1b [not released]
10409 *) Updated a few CA certificates under certs/
10412 *) Changed some BIGNUM api stuff.
10415 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10416 DGUX x86, Linux Alpha, etc.
10419 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10420 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10424 *) Add -strparse option to asn1pars program which parses nested
10426 [Dr Stephen Henson <shenson@bigfoot.com>]
10428 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10431 *) DSA fix for "ca" program.
10434 *) Added "-genkey" option to "dsaparam" program.
10437 *) Added RIPE MD160 (rmd160) message digest.
10440 *) Added -a (all) option to "ssleay version" command.
10443 *) Added PLATFORM define which is the id given to Configure.
10446 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10449 *) Extended the ASN.1 parser routines.
10452 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10455 *) Added a BN_CTX to the BN library.
10458 *) Fixed the weak key values in DES library
10461 *) Changed API in EVP library for cipher aliases.
10464 *) Added support for RC2/64bit cipher.
10467 *) Converted the lhash library to the crypto/mem.c functions.
10470 *) Added more recognized ASN.1 object ids.
10473 *) Added more RSA padding checks for SSL/TLS.
10476 *) Added BIO proxy/filter functionality.
10479 *) Added extra_certs to SSL_CTX which can be used
10480 send extra CA certificates to the client in the CA cert chain sending
10481 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10484 *) Now Fortezza is denied in the authentication phase because
10485 this is key exchange mechanism is not supported by SSLeay at all.
10488 *) Additional PKCS1 checks.
10491 *) Support the string "TLSv1" for all TLS v1 ciphers.
10494 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10495 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10498 *) Fixed a few memory leaks.
10501 *) Fixed various code and comment typos.
10504 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10505 bytes sent in the client random.
10506 [Edward Bishop <ebishop@spyglass.com>]