5 Changes between 1.0.1 and 1.0.2 [xx XXX xxxx]
7 *) New functions to retrieve certificate signature and signature
11 *) Add certificate callback. If set this is called whenever a certificate
12 is required by client or server. An application can decide which
13 certificate chain to present based on arbitrary criteria: for example
14 supported signature algorithms. Add very simple example to s_server.
15 This fixes many of the problems and restrictions of the existing client
16 certificate callback: for example you can now clear an existing
17 certificate and specify the whole chain.
20 *) Add new "valid_flags" field to CERT_PKEY structure which determines what
21 the certificate can be used for (if anything). Set valid_flags field
22 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
23 to have similar checks in it.
25 Add new "cert_flags" field to CERT structure and include a "strict mode".
26 This enforces some TLS certificate requirements (such as only permitting
27 certificate signature algorithms contained in the supported algorithms
28 extension) which some implementations ignore: this option should be used
29 with caution as it could cause interoperability issues.
32 *) Update and tidy signature algorithm extension processing. Work out
33 shared signature algorithms based on preferences and peer algorithms
34 and print them out in s_client and s_server. Abort handshake if no
35 shared signature algorithms.
38 *) Add new functions to allow customised supported signature algorithms
39 for SSL and SSL_CTX structures. Add options to s_client and s_server
43 *) New function SSL_certs_clear() to delete all references to certificates
44 from an SSL structure. Before this once a certificate had been added
45 it couldn't be removed.
48 *) Integrate hostname, email address and IP address checking with certificate
49 verification. New verify options supporting checking in opensl utility.
52 *) Fixes and wildcard matching support to hostname and email checking
53 functions. Add manual page.
54 [Florian Weimer (Red Hat Product Security Team)]
56 *) New functions to check a hostname email or IP address against a
57 certificate. Add options x509 utility to print results of checks against
62 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie]
64 *) Backport support for partial chain verification: if an intermediate
65 certificate is explicitly trusted (using -addtrust option to x509
66 utility for example) the verification is sucessful even if the chain
68 The OCSP checking fix depends on this backport.
69 [Steve Henson and Rob Stradling <rob.stradling@comodo.com>]
71 *) Add -trusted_first option which attempts to find certificates in the
72 trusted store even if an untrusted chain is also supplied.
75 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE,
76 platform support for Linux and Android.
79 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
80 the right response is stapled. Also change current certificate to
81 the certificate actually sent.
82 See http://rt.openssl.org/Ticket/Display.html?id=2836.
83 [Rob Stradling <rob.stradling@comodo.com>]
85 *) Support for linux-x32, ILP32 environment in x86_64 framework.
89 [Emilia Kasper, Adam Langley, Ben Laurie (Google)]
91 *) Experimental multi-implementation support for FIPS capable OpenSSL.
92 When in FIPS mode the approved implementations are used as normal,
93 when not in FIPS mode the internal unapproved versions are used instead.
94 This means that the FIPS capable OpenSSL isn't forced to use the
95 (often lower perfomance) FIPS implementations outside FIPS mode.
98 *) Transparently support X9.42 DH parameters when calling
99 PEM_read_bio_DHparameters. This means existing applications can handle
100 the new parameter format automatically.
103 *) Initial experimental support for X9.42 DH parameter format: mainly
104 to support use of 'q' parameter for RFC5114 parameters.
107 *) Add DH parameters from RFC5114 including test data to dhtest.
110 *) Support for automatic EC temporary key parameter selection. If enabled
111 the most preferred EC parameters are automatically used instead of
112 hardcoded fixed parameters. Now a server just has to call:
113 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
114 support ECDH and use the most appropriate parameters.
117 *) Enhance and tidy EC curve and point format TLS extension code. Use
118 static structures instead of allocation if default values are used.
119 New ctrls to set curves we wish to support and to retrieve shared curves.
120 Print out shared curves in s_server. New options to s_server and s_client
121 to set list of supported curves.
124 *) New ctrls to retrieve supported signature algorithms and
125 supported curve values as an array of NIDs. Extend openssl utility
126 to print out received values.
129 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
130 between NIDs and the more common NIST names such as "P-256". Enhance
131 ecparam utility and ECC method to recognise the NIST names for curves.
134 *) Enhance SSL/TLS certificate chain handling to support different
135 chains for each certificate instead of one chain in the parent SSL_CTX.
138 *) Support for fixed DH ciphersuite client authentication: where both
139 server and client use DH certificates with common parameters.
142 *) Support for fixed DH ciphersuites: those requiring DH server
146 Changes between 1.0.1c and 1.0.1d [xx XXX xxxx]
148 *) Make openssl verify return errors.
149 [Chris Palmer <palmer@google.com> and Ben Laurie]
151 *) Fix possible deadlock when decoding public keys.
154 *) Don't use TLS 1.0 record version number in initial client hello
158 Changes between 1.0.1b and 1.0.1c [10 May 2012]
160 *) Sanity check record length before skipping explicit IV in TLS
161 1.2, 1.1 and DTLS to avoid DoS attack.
163 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
164 fuzzing as a service testing platform.
168 *) Initialise tkeylen properly when encrypting CMS messages.
169 Thanks to Solar Designer of Openwall for reporting this issue.
172 *) In FIPS mode don't try to use composite ciphers as they are not
176 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
178 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
179 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
180 mean any application compiled against OpenSSL 1.0.0 headers setting
181 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
182 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
183 0x10000000L Any application which was previously compiled against
184 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
185 will need to be recompiled as a result. Letting be results in
186 inability to disable specifically TLS 1.1 and in client context,
187 in unlike event, limit maximum offered version to TLS 1.0 [see below].
190 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
191 disable just protocol X, but all protocols above X *if* there are
192 protocols *below* X still enabled. In more practical terms it means
193 that if application wants to disable TLS1.0 in favor of TLS1.1 and
194 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
195 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
199 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
201 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
202 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
203 in CRYPTO_realloc_clean.
205 Thanks to Tavis Ormandy, Google Security Team, for discovering this
206 issue and to Adam Langley <agl@chromium.org> for fixing it.
208 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
210 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
213 *) Workarounds for some broken servers that "hang" if a client hello
214 record length exceeds 255 bytes:
216 1. Do not use record version number > TLS 1.0 in initial client
217 hello: some (but not all) hanging servers will now work.
218 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
219 the number of ciphers sent in the client hello. This should be
220 set to an even number, such as 50, for example by passing:
221 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
222 Most broken servers should now work.
223 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
224 TLS 1.2 client support entirely.
227 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
230 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
232 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
233 STRING form instead of a DigestInfo.
236 *) The format used for MDC2 RSA signatures is inconsistent between EVP
237 and the RSA_sign/RSA_verify functions. This was made more apparent when
238 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
239 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
240 the correct format in RSA_verify so both forms transparently work.
243 *) Some servers which support TLS 1.0 can choke if we initially indicate
244 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
245 encrypted premaster secret. As a workaround use the maximum pemitted
246 client version in client hello, this should keep such servers happy
247 and still work with previous versions of OpenSSL.
250 *) Add support for TLS/DTLS heartbeats.
251 [Robin Seggelmann <seggelmann@fh-muenster.de>]
253 *) Add support for SCTP.
254 [Robin Seggelmann <seggelmann@fh-muenster.de>]
256 *) Improved PRNG seeding for VOS.
257 [Paul Green <Paul.Green@stratus.com>]
259 *) Extensive assembler packs updates, most notably:
261 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
262 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
263 - x86_64: bit-sliced AES implementation;
264 - ARM: NEON support, contemporary platforms optimizations;
265 - s390x: z196 support;
266 - *: GHASH and GF(2^m) multiplication implementations;
270 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
271 (removal of unnecessary code)
272 [Peter Sylvester <peter.sylvester@edelweb.fr>]
274 *) Add TLS key material exporter from RFC 5705.
277 *) Add DTLS-SRTP negotiation from RFC 5764.
280 *) Add Next Protocol Negotiation,
281 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
282 disabled with a no-npn flag to config or Configure. Code donated
284 [Adam Langley <agl@google.com> and Ben Laurie]
286 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
287 NIST-P256, NIST-P521, with constant-time single point multiplication on
288 typical inputs. Compiler support for the nonstandard type __uint128_t is
289 required to use this (present in gcc 4.4 and later, for 64-bit builds).
290 Code made available under Apache License version 2.0.
292 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
293 line to include this in your build of OpenSSL, and run "make depend" (or
294 "make update"). This enables the following EC_METHODs:
296 EC_GFp_nistp224_method()
297 EC_GFp_nistp256_method()
298 EC_GFp_nistp521_method()
300 EC_GROUP_new_by_curve_name() will automatically use these (while
301 EC_GROUP_new_curve_GFp() currently prefers the more flexible
303 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
305 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
306 all platforms. Move ssize_t definition from e_os.h to the public
307 header file e_os2.h as it now appears in public header file cms.h
310 *) New -sigopt option to the ca, req and x509 utilities. Additional
311 signature parameters can be passed using this option and in
315 *) Add RSA PSS signing function. This will generate and set the
316 appropriate AlgorithmIdentifiers for PSS based on those in the
317 corresponding EVP_MD_CTX structure. No application support yet.
320 *) Support for companion algorithm specific ASN1 signing routines.
321 New function ASN1_item_sign_ctx() signs a pre-initialised
322 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
323 the appropriate parameters.
326 *) Add new algorithm specific ASN1 verification initialisation function
327 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
328 handling will be the same no matter what EVP_PKEY_METHOD is used.
329 Add a PSS handler to support verification of PSS signatures: checked
330 against a number of sample certificates.
333 *) Add signature printing for PSS. Add PSS OIDs.
334 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
336 *) Add algorithm specific signature printing. An individual ASN1 method
337 can now print out signatures instead of the standard hex dump.
339 More complex signatures (e.g. PSS) can print out more meaningful
340 information. Include DSA version that prints out the signature
344 *) Password based recipient info support for CMS library: implementing
348 *) Split password based encryption into PBES2 and PBKDF2 functions. This
349 neatly separates the code into cipher and PBE sections and is required
350 for some algorithms that split PBES2 into separate pieces (such as
354 *) Session-handling fixes:
355 - Fix handling of connections that are resuming with a session ID,
356 but also support Session Tickets.
357 - Fix a bug that suppressed issuing of a new ticket if the client
358 presented a ticket with an expired session.
359 - Try to set the ticket lifetime hint to something reasonable.
360 - Make tickets shorter by excluding irrelevant information.
361 - On the client side, don't ignore renewed tickets.
362 [Adam Langley, Bodo Moeller (Google)]
364 *) Fix PSK session representation.
367 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
369 This work was sponsored by Intel.
372 *) Add GCM support to TLS library. Some custom code is needed to split
373 the IV between the fixed (from PRF) and explicit (from TLS record)
374 portions. This adds all GCM ciphersuites supported by RFC5288 and
375 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
376 add a special AESGCM string for GCM only.
379 *) Expand range of ctrls for AES GCM. Permit setting invocation
380 field on decrypt and retrieval of invocation field only on encrypt.
383 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
384 As required by RFC5289 these ciphersuites cannot be used if for
385 versions of TLS earlier than 1.2.
388 *) For FIPS capable OpenSSL interpret a NULL default public key method
389 as unset and return the appopriate default but do *not* set the default.
390 This means we can return the appopriate method in applications that
391 swicth between FIPS and non-FIPS modes.
394 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
395 ENGINE is used then we cannot handle that in the FIPS module so we
396 keep original code iff non-FIPS operations are allowed.
399 *) Add -attime option to openssl utilities.
400 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
402 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
405 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
406 FIPS EC methods unconditionally for now.
409 *) New build option no-ec2m to disable characteristic 2 code.
412 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
413 all cases can be covered as some introduce binary incompatibilities.
416 *) Redirect RSA operations to FIPS module including keygen,
417 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
420 *) Add similar low level API blocking to ciphers.
423 *) Low level digest APIs are not approved in FIPS mode: any attempt
424 to use these will cause a fatal error. Applications that *really* want
425 to use them can use the private_* version instead.
428 *) Redirect cipher operations to FIPS module for FIPS builds.
431 *) Redirect digest operations to FIPS module for FIPS builds.
434 *) Update build system to add "fips" flag which will link in fipscanister.o
435 for static and shared library builds embedding a signature if needed.
438 *) Output TLS supported curves in preference order instead of numerical
439 order. This is currently hardcoded for the highest order curves first.
440 This should be configurable so applications can judge speed vs strength.
443 *) Add TLS v1.2 server support for client authentication.
446 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
450 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
451 FIPS modules versions.
454 *) Add TLS v1.2 client side support for client authentication. Keep cache
455 of handshake records longer as we don't know the hash algorithm to use
456 until after the certificate request message is received.
459 *) Initial TLS v1.2 client support. Add a default signature algorithms
460 extension including all the algorithms we support. Parse new signature
461 format in client key exchange. Relax some ECC signing restrictions for
462 TLS v1.2 as indicated in RFC5246.
465 *) Add server support for TLS v1.2 signature algorithms extension. Switch
466 to new signature format when needed using client digest preference.
467 All server ciphersuites should now work correctly in TLS v1.2. No client
468 support yet and no support for client certificates.
471 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
472 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
473 ciphersuites. At present only RSA key exchange ciphersuites work with
474 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
475 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
476 and version checking.
479 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
480 with this defined it will not be affected by any changes to ssl internal
481 structures. Add several utility functions to allow openssl application
482 to work with OPENSSL_NO_SSL_INTERN defined.
486 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
488 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
491 *) Permit abbreviated handshakes when renegotiating using the function
492 SSL_renegotiate_abbreviated().
493 [Robin Seggelmann <seggelmann@fh-muenster.de>]
495 *) Add call to ENGINE_register_all_complete() to
496 ENGINE_load_builtin_engines(), so some implementations get used
497 automatically instead of needing explicit application support.
500 *) Add support for TLS key exporter as described in RFC5705.
501 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
503 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
504 a few changes are required:
506 Add SSL_OP_NO_TLSv1_1 flag.
508 Update version checking logic to handle version 1.1.
509 Add explicit IV handling (ported from DTLS code).
510 Add command line options to s_client/s_server.
513 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
515 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
516 in CMS and PKCS7 code. When RSA decryption fails use a random key for
517 content decryption and always return the same error. Note: this attack
518 needs on average 2^20 messages so it only affects automated senders. The
519 old behaviour can be reenabled in the CMS code by setting the
520 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
521 an MMA defence is not necessary.
522 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
523 this issue. (CVE-2012-0884)
526 *) Fix CVE-2011-4619: make sure we really are receiving a
527 client hello before rejecting multiple SGC restarts. Thanks to
528 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
531 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
533 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
534 Thanks to Antonio Martin, Enterprise Secure Access Research and
535 Development, Cisco Systems, Inc. for discovering this bug and
536 preparing a fix. (CVE-2012-0050)
539 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
541 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
542 of the Vaudenay padding oracle attack on CBC mode encryption
543 which enables an efficient plaintext recovery attack against
544 the OpenSSL implementation of DTLS. Their attack exploits timing
545 differences arising during decryption processing. A research
546 paper describing this attack can be found at:
547 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
548 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
549 Security Group at Royal Holloway, University of London
550 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
551 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
552 for preparing the fix. (CVE-2011-4108)
553 [Robin Seggelmann, Michael Tuexen]
555 *) Clear bytes used for block padding of SSL 3.0 records.
557 [Adam Langley (Google)]
559 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
560 Kadianakis <desnacked@gmail.com> for discovering this issue and
561 Adam Langley for preparing the fix. (CVE-2011-4619)
562 [Adam Langley (Google)]
564 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
565 [Andrey Kulikov <amdeich@gmail.com>]
567 *) Prevent malformed RFC3779 data triggering an assertion failure.
568 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
569 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
570 [Rob Austein <sra@hactrn.net>]
572 *) Improved PRNG seeding for VOS.
573 [Paul Green <Paul.Green@stratus.com>]
575 *) Fix ssl_ciph.c set-up race.
576 [Adam Langley (Google)]
578 *) Fix spurious failures in ecdsatest.c.
579 [Emilia Käsper (Google)]
581 *) Fix the BIO_f_buffer() implementation (which was mixing different
582 interpretations of the '..._len' fields).
583 [Adam Langley (Google)]
585 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
586 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
587 threads won't reuse the same blinding coefficients.
589 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
590 lock to call BN_BLINDING_invert_ex, and avoids one use of
591 BN_BLINDING_update for each BN_BLINDING structure (previously,
592 the last update always remained unused).
593 [Emilia Käsper (Google)]
595 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
596 [Bob Buckholz (Google)]
598 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
600 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
601 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
602 [Kaspar Brand <ossl@velox.ch>]
604 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
605 for multi-threaded use of ECDH. (CVE-2011-3210)
606 [Adam Langley (Google)]
608 *) Fix x509_name_ex_d2i memory leak on bad inputs.
611 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
612 signature public key algorithm by using OID xref utilities instead.
613 Before this you could only use some ECC ciphersuites with SHA1 only.
616 *) Add protection against ECDSA timing attacks as mentioned in the paper
617 by Billy Bob Brumley and Nicola Tuveri, see:
619 http://eprint.iacr.org/2011/232.pdf
621 [Billy Bob Brumley and Nicola Tuveri]
623 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
625 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
626 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
628 *) Fix bug in string printing code: if *any* escaping is enabled we must
629 escape the escape character (backslash) or the resulting string is
633 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
635 *) Disable code workaround for ancient and obsolete Netscape browsers
636 and servers: an attacker can use it in a ciphersuite downgrade attack.
637 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
640 *) Fixed J-PAKE implementation error, originally discovered by
641 Sebastien Martini, further info and confirmation from Stefan
642 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
645 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
647 *) Fix extension code to avoid race conditions which can result in a buffer
648 overrun vulnerability: resumed sessions must not be modified as they can
649 be shared by multiple threads. CVE-2010-3864
652 *) Fix WIN32 build system to correctly link an ENGINE directory into
656 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
658 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
660 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
662 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
664 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
665 context. The operation can be customised via the ctrl mechanism in
666 case ENGINEs want to include additional functionality.
669 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
672 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
673 output hashes compatible with older versions of OpenSSL.
674 [Willy Weisz <weisz@vcpc.univie.ac.at>]
676 *) Fix compression algorithm handling: if resuming a session use the
677 compression algorithm of the resumed session instead of determining
678 it from client hello again. Don't allow server to change algorithm.
681 *) Add load_crls() function to apps tidying load_certs() too. Add option
682 to verify utility to allow additional CRLs to be included.
685 *) Update OCSP request code to permit adding custom headers to the request:
686 some responders need this.
689 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
691 [Julia Lawall <julia@diku.dk>]
693 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
694 needlessly dereferenced structures, used obsolete functions and
695 didn't handle all updated verify codes correctly.
698 *) Disable MD2 in the default configuration.
701 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
702 indicate the initial BIO being pushed or popped. This makes it possible
703 to determine whether the BIO is the one explicitly called or as a result
704 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
705 it handles reference counts correctly and doesn't zero out the I/O bio
706 when it is not being explicitly popped. WARNING: applications which
707 included workarounds for the old buggy behaviour will need to be modified
708 or they could free up already freed BIOs.
711 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
712 renaming to all platforms (within the 0.9.8 branch, this was
713 done conditionally on Netware platforms to avoid a name clash).
714 [Guenter <lists@gknw.net>]
716 *) Add ECDHE and PSK support to DTLS.
717 [Michael Tuexen <tuexen@fh-muenster.de>]
719 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
723 *) Add "missing" function EVP_MD_flags() (without this the only way to
724 retrieve a digest flags is by accessing the structure directly. Update
725 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
726 or cipher is registered as in the "from" argument. Print out all
727 registered digests in the dgst usage message instead of manually
728 attempting to work them out.
731 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
732 this allows the use of compression and extensions. Change default cipher
733 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
734 by default unless an application cipher string requests it.
737 *) Alter match criteria in PKCS12_parse(). It used to try to use local
738 key ids to find matching certificates and keys but some PKCS#12 files
739 don't follow the (somewhat unwritten) rules and this strategy fails.
740 Now just gather all certificates together and the first private key
741 then look for the first certificate that matches the key.
744 *) Support use of registered digest and cipher names for dgst and cipher
745 commands instead of having to add each one as a special case. So now
752 openssl dgst -sha256 foo
754 and this works for ENGINE based algorithms too.
758 *) Update Gost ENGINE to support parameter files.
759 [Victor B. Wagner <vitus@cryptocom.ru>]
761 *) Support GeneralizedTime in ca utility.
762 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
764 *) Enhance the hash format used for certificate directory links. The new
765 form uses the canonical encoding (meaning equivalent names will work
766 even if they aren't identical) and uses SHA1 instead of MD5. This form
767 is incompatible with the older format and as a result c_rehash should
768 be used to rebuild symbolic links.
771 *) Make PKCS#8 the default write format for private keys, replacing the
772 traditional format. This form is standardised, more secure and doesn't
773 include an implicit MD5 dependency.
776 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
777 committed to OpenSSL should pass this lot as a minimum.
780 *) Add session ticket override functionality for use by EAP-FAST.
781 [Jouni Malinen <j@w1.fi>]
783 *) Modify HMAC functions to return a value. Since these can be implemented
784 in an ENGINE errors can occur.
787 *) Type-checked OBJ_bsearch_ex.
790 *) Type-checked OBJ_bsearch. Also some constification necessitated
791 by type-checking. Still to come: TXT_DB, bsearch(?),
792 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
796 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
797 seconds to a tm structure directly, instead of going through OS
798 specific date routines. This avoids any issues with OS routines such
799 as the year 2038 bug. New *_adj() functions for ASN1 time structures
800 and X509_time_adj_ex() to cover the extended range. The existing
801 X509_time_adj() is still usable and will no longer have any date issues.
804 *) Delta CRL support. New use deltas option which will attempt to locate
805 and search any appropriate delta CRLs available.
807 This work was sponsored by Google.
810 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
811 code and add additional score elements. Validate alternate CRL paths
812 as part of the CRL checking and indicate a new error "CRL path validation
813 error" in this case. Applications wanting additional details can use
814 the verify callback and check the new "parent" field. If this is not
815 NULL CRL path validation is taking place. Existing applications wont
816 see this because it requires extended CRL support which is off by
819 This work was sponsored by Google.
822 *) Support for freshest CRL extension.
824 This work was sponsored by Google.
827 *) Initial indirect CRL support. Currently only supported in the CRLs
828 passed directly and not via lookup. Process certificate issuer
829 CRL entry extension and lookup CRL entries by bother issuer name
830 and serial number. Check and process CRL issuer entry in IDP extension.
832 This work was sponsored by Google.
835 *) Add support for distinct certificate and CRL paths. The CRL issuer
836 certificate is validated separately in this case. Only enabled if
837 an extended CRL support flag is set: this flag will enable additional
838 CRL functionality in future.
840 This work was sponsored by Google.
843 *) Add support for policy mappings extension.
845 This work was sponsored by Google.
848 *) Fixes to pathlength constraint, self issued certificate handling,
849 policy processing to align with RFC3280 and PKITS tests.
851 This work was sponsored by Google.
854 *) Support for name constraints certificate extension. DN, email, DNS
855 and URI types are currently supported.
857 This work was sponsored by Google.
860 *) To cater for systems that provide a pointer-based thread ID rather
861 than numeric, deprecate the current numeric thread ID mechanism and
862 replace it with a structure and associated callback type. This
863 mechanism allows a numeric "hash" to be extracted from a thread ID in
864 either case, and on platforms where pointers are larger than 'long',
865 mixing is done to help ensure the numeric 'hash' is usable even if it
866 can't be guaranteed unique. The default mechanism is to use "&errno"
867 as a pointer-based thread ID to distinguish between threads.
869 Applications that want to provide their own thread IDs should now use
870 CRYPTO_THREADID_set_callback() to register a callback that will call
871 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
873 Note that ERR_remove_state() is now deprecated, because it is tied
874 to the assumption that thread IDs are numeric. ERR_remove_state(0)
875 to free the current thread's error state should be replaced by
876 ERR_remove_thread_state(NULL).
878 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
879 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
880 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
881 application was previously providing a numeric thread callback that
882 was inappropriate for distinguishing threads, then uniqueness might
883 have been obtained with &errno that happened immediately in the
884 intermediate development versions of OpenSSL; this is no longer the
885 case, the numeric thread callback will now override the automatic use
887 [Geoff Thorpe, with help from Bodo Moeller]
889 *) Initial support for different CRL issuing certificates. This covers a
890 simple case where the self issued certificates in the chain exist and
891 the real CRL issuer is higher in the existing chain.
893 This work was sponsored by Google.
896 *) Removed effectively defunct crypto/store from the build.
899 *) Revamp of STACK to provide stronger type-checking. Still to come:
900 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
901 ASN1_STRING, CONF_VALUE.
904 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
905 RAM on SSL connections. This option can save about 34k per idle SSL.
908 *) Revamp of LHASH to provide stronger type-checking. Still to come:
909 STACK, TXT_DB, bsearch, qsort.
912 *) Initial support for Cryptographic Message Syntax (aka CMS) based
913 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
914 support for data, signedData, compressedData, digestedData and
915 encryptedData, envelopedData types included. Scripts to check against
916 RFC4134 examples draft and interop and consistency checks of many
917 content types and variants.
920 *) Add options to enc utility to support use of zlib compression BIO.
923 *) Extend mk1mf to support importing of options and assembly language
924 files from Configure script, currently only included in VC-WIN32.
925 The assembly language rules can now optionally generate the source
926 files from the associated perl scripts.
929 *) Implement remaining functionality needed to support GOST ciphersuites.
930 Interop testing has been performed using CryptoPro implementations.
931 [Victor B. Wagner <vitus@cryptocom.ru>]
933 *) s390x assembler pack.
936 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
940 *) Implement Opaque PRF Input TLS extension as specified in
941 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
942 official specification yet and no extension type assignment by
943 IANA exists, this extension (for now) will have to be explicitly
944 enabled when building OpenSSL by providing the extension number
945 to use. For example, specify an option
947 -DTLSEXT_TYPE_opaque_prf_input=0x9527
949 to the "config" or "Configure" script to enable the extension,
950 assuming extension number 0x9527 (which is a completely arbitrary
951 and unofficial assignment based on the MD5 hash of the Internet
952 Draft). Note that by doing so, you potentially lose
953 interoperability with other TLS implementations since these might
954 be using the same extension number for other purposes.
956 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
957 opaque PRF input value to use in the handshake. This will create
958 an interal copy of the length-'len' string at 'src', and will
959 return non-zero for success.
961 To get more control and flexibility, provide a callback function
964 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
965 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
969 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
972 Callback function 'cb' will be called in handshakes, and is
973 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
974 Argument 'arg' is for application purposes (the value as given to
975 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
976 be provided to the callback function). The callback function
977 has to return non-zero to report success: usually 1 to use opaque
978 PRF input just if possible, or 2 to enforce use of the opaque PRF
979 input. In the latter case, the library will abort the handshake
980 if opaque PRF input is not successfully negotiated.
982 Arguments 'peerinput' and 'len' given to the callback function
983 will always be NULL and 0 in the case of a client. A server will
984 see the client's opaque PRF input through these variables if
985 available (NULL and 0 otherwise). Note that if the server
986 provides an opaque PRF input, the length must be the same as the
987 length of the client's opaque PRF input.
989 Note that the callback function will only be called when creating
990 a new session (session resumption can resume whatever was
991 previously negotiated), and will not be called in SSL 2.0
992 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
993 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
994 for applications that need to enforce opaque PRF input.
998 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1001 [Victor B. Wagner <vitus@cryptocom.ru>]
1003 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1004 RFC4507bis. The encrypted ticket format is an encrypted encoded
1005 SSL_SESSION structure, that way new session features are automatically
1008 If a client application caches session in an SSL_SESSION structure
1009 support is transparent because tickets are now stored in the encoded
1012 The SSL_CTX structure automatically generates keys for ticket
1013 protection in servers so again support should be possible
1014 with no application modification.
1016 If a client or server wishes to disable RFC4507 support then the option
1017 SSL_OP_NO_TICKET can be set.
1019 Add a TLS extension debugging callback to allow the contents of any client
1020 or server extensions to be examined.
1022 This work was sponsored by Google.
1025 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1026 OpenSSL should now compile cleanly on gcc 4.2
1027 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1029 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1030 support including streaming MAC support: this is required for GOST
1031 ciphersuite support.
1032 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1034 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1035 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1036 to output in BER and PEM format.
1039 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1040 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1041 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1042 ENGINE support for HMAC keys which are unextractable. New -mac and
1043 -macopt options to dgst utility.
1046 *) New option -sigopt to dgst utility. Update dgst to use
1047 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1048 alternative signing paramaters such as X9.31 or PSS in the dgst
1052 *) Change ssl_cipher_apply_rule(), the internal function that does
1053 the work each time a ciphersuite string requests enabling
1054 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1055 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1056 the order of disabled ciphersuites such that those ciphersuites
1057 that most recently went from enabled to disabled not only stay
1058 in order with respect to each other, but also have higher priority
1059 than other disabled ciphersuites the next time ciphersuites are
1062 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1063 the same ciphersuites as with "HIGH" alone, but in a specific
1064 order where the PSK ciphersuites come first (since they are the
1065 most recently disabled ciphersuites when "HIGH" is parsed).
1067 Also, change ssl_create_cipher_list() (using this new
1068 funcionality) such that between otherwise identical
1069 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1073 *) Change ssl_create_cipher_list() so that it automatically
1074 arranges the ciphersuites in reasonable order before starting
1075 to process the rule string. Thus, the definition for "DEFAULT"
1076 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1077 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1078 This makes it much easier to arrive at a reasonable default order
1079 in applications for which anonymous ciphers are OK (meaning
1080 that you can't actually use DEFAULT).
1081 [Bodo Moeller; suggested by Victor Duchovni]
1083 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1084 processing) into multiple integers instead of setting
1085 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1086 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1087 (These masks as well as the individual bit definitions are hidden
1088 away into the non-exported interface ssl/ssl_locl.h, so this
1089 change to the definition of the SSL_CIPHER structure shouldn't
1090 affect applications.) This give us more bits for each of these
1091 categories, so there is no longer a need to coagulate AES128 and
1092 AES256 into a single algorithm bit, and to coagulate Camellia128
1093 and Camellia256 into a single algorithm bit, which has led to all
1096 Thus, among other things, the kludge introduced in 0.9.7m and
1097 0.9.8e for masking out AES256 independently of AES128 or masking
1098 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1100 With the change, we also introduce new ciphersuite aliases that
1101 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1105 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1106 Use the leftmost N bytes of the signature input if the input is
1107 larger than the prime q (with N being the size in bytes of q).
1110 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1111 it yet and it is largely untested.
1114 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1117 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1118 some compilers (gcc 4.2 and later) reject their use. Safestack is
1119 reimplemented. Update ASN1 to avoid use of legacy functions.
1122 *) Win32/64 targets are linked with Winsock2.
1125 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1126 to external functions. This can be used to increase CRL handling
1127 efficiency especially when CRLs are very large by (for example) storing
1128 the CRL revoked certificates in a database.
1131 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1132 new CRLs added to a directory can be used. New command line option
1133 -verify_return_error to s_client and s_server. This causes real errors
1134 to be returned by the verify callback instead of carrying on no matter
1135 what. This reflects the way a "real world" verify callback would behave.
1138 *) GOST engine, supporting several GOST algorithms and public key formats.
1139 Kindly donated by Cryptocom.
1142 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1143 partitioned by DP are handled but no indirect CRL or reason partitioning
1144 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1145 selected via a scoring technique which handles IDP and AKID in CRLs.
1148 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1149 will ultimately be used for all verify operations: this will remove the
1150 X509_STORE dependency on certificate verification and allow alternative
1151 lookup methods. X509_STORE based implementations of these two callbacks.
1154 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1155 Modify get_crl() to find a valid (unexpired) CRL if possible.
1158 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1159 this would be called X509_CRL_cmp() but that name is already used by
1160 a function that just compares CRL issuer names. Cache several CRL
1161 extensions in X509_CRL structure and cache CRLDP in X509.
1164 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1165 this maps equivalent X509_NAME structures into a consistent structure.
1166 Name comparison can then be performed rapidly using memcmp().
1169 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1173 *) Allow digests to supply their own micalg string for S/MIME type using
1174 the ctrl EVP_MD_CTRL_MICALG.
1177 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1178 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1179 ctrl. It can then customise the structure before and/or after signing
1183 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1184 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1185 to free up any added signature OIDs.
1188 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1189 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1190 digest and cipher tables. New options added to openssl utility:
1191 list-message-digest-algorithms and list-cipher-algorithms.
1194 *) Change the array representation of binary polynomials: the list
1195 of degrees of non-zero coefficients is now terminated with -1.
1196 Previously it was terminated with 0, which was also part of the
1197 value; thus, the array representation was not applicable to
1198 polynomials where t^0 has coefficient zero. This change makes
1199 the array representation useful in a more general context.
1202 *) Various modifications and fixes to SSL/TLS cipher string
1203 handling. For ECC, the code now distinguishes between fixed ECDH
1204 with RSA certificates on the one hand and with ECDSA certificates
1205 on the other hand, since these are separate ciphersuites. The
1206 unused code for Fortezza ciphersuites has been removed.
1208 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1209 (not "ECDHE"). For consistency with the code for DH
1210 certificates, use of ECDH certificates is now considered ECDH
1211 authentication, not RSA or ECDSA authentication (the latter is
1212 merely the CA's signing algorithm and not actively used in the
1215 The temporary ciphersuite alias "ECCdraft" is no longer
1216 available, and ECC ciphersuites are no longer excluded from "ALL"
1217 and "DEFAULT". The following aliases now exist for RFC 4492
1218 ciphersuites, most of these by analogy with the DH case:
1220 kECDHr - ECDH cert, signed with RSA
1221 kECDHe - ECDH cert, signed with ECDSA
1222 kECDH - ECDH cert (signed with either RSA or ECDSA)
1223 kEECDH - ephemeral ECDH
1224 ECDH - ECDH cert or ephemeral ECDH
1230 AECDH - anonymous ECDH
1231 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1235 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1236 Use correct micalg parameters depending on digest(s) in signed message.
1239 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1240 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1243 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1244 an engine to register a method. Add ENGINE lookups for methods and
1245 functional reference processing.
1248 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1249 EVP_{Sign,Verify}* which allow an application to customise the signature
1253 *) New -resign option to smime utility. This adds one or more signers
1254 to an existing PKCS#7 signedData structure. Also -md option to use an
1255 alternative message digest algorithm for signing.
1258 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1259 create PKCS7 structures containing multiple signers. Update smime
1260 application to support multiple signers.
1263 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1267 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1268 Reorganize PBE internals to lookup from a static table using NIDs,
1269 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1270 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1271 PRF which will be automatically used with PBES2.
1274 *) Replace the algorithm specific calls to generate keys in "req" with the
1278 *) Update PKCS#7 enveloped data routines to use new API. This is now
1279 supported by any public key method supporting the encrypt operation. A
1280 ctrl is added to allow the public key algorithm to examine or modify
1281 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1285 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1286 a default digest type to use. In most cases this will be SHA1 but some
1287 algorithms (such as GOST) need to specify an alternative digest. The
1288 return value indicates how strong the prefernce is 1 means optional and
1289 2 is mandatory (that is it is the only supported type). Modify
1290 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1291 use the default md. Update openssl utilities to use the default digest
1292 type for signing if it is not explicitly indicated.
1295 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1296 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1297 signing method from the key type. This effectively removes the link
1298 between digests and public key types.
1301 *) Add an OID cross reference table and utility functions. Its purpose is to
1302 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1303 rsaEncryption. This will allow some of the algorithm specific hackery
1304 needed to use the correct OID to be removed.
1307 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1308 structures for PKCS7_sign(). They are now set up by the relevant public
1312 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1315 *) Add support for key derivation (agreement) in the API, DH method and
1319 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1320 public and private key formats. As a side effect these add additional
1321 command line functionality not previously available: DSA signatures can be
1322 generated and verified using pkeyutl and DH key support and generation in
1327 [Oliver Tappe <zooey@hirschkaefer.de>]
1329 *) New make target "install_html_docs" installs HTML renditions of the
1331 [Oliver Tappe <zooey@hirschkaefer.de>]
1333 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1334 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1335 support key and parameter generation and add initial key generation
1336 functionality for RSA.
1339 *) Add functions for main EVP_PKEY_method operations. The undocumented
1340 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1341 EVP_PKEY_{encrypt,decrypt}_old.
1344 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1345 key API, doesn't do much yet.
1348 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1349 public key algorithms. New option to openssl utility:
1350 "list-public-key-algorithms" to print out info.
1353 *) Implement the Supported Elliptic Curves Extension for
1354 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1357 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1358 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1361 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1362 utilities such as rsa, dsa, dsaparam etc except they process any key
1366 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1367 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1368 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1372 *) Initial support for pluggable public key ASN1.
1373 De-spaghettify the public key ASN1 handling. Move public and private
1374 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1375 algorithm specific handling to a single module within the relevant
1376 algorithm directory. Add functions to allow (near) opaque processing
1377 of public and private key structures.
1380 *) Implement the Supported Point Formats Extension for
1381 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1384 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1385 for the psk identity [hint] and the psk callback functions to the
1386 SSL_SESSION, SSL and SSL_CTX structure.
1389 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1393 SSL_CTX_use_psk_identity_hint
1394 SSL_get_psk_identity_hint
1395 SSL_get_psk_identity
1396 SSL_use_psk_identity_hint
1398 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1400 *) Add RFC 3161 compliant time stamp request creation, response generation
1401 and response verification functionality.
1402 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1404 *) Add initial support for TLS extensions, specifically for the server_name
1405 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1406 have new members for a host name. The SSL data structure has an
1407 additional member SSL_CTX *initial_ctx so that new sessions can be
1408 stored in that context to allow for session resumption, even after the
1409 SSL has been switched to a new SSL_CTX in reaction to a client's
1410 server_name extension.
1412 New functions (subject to change):
1414 SSL_get_servername()
1415 SSL_get_servername_type()
1418 New CTRL codes and macros (subject to change):
1420 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1421 - SSL_CTX_set_tlsext_servername_callback()
1422 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1423 - SSL_CTX_set_tlsext_servername_arg()
1424 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1426 openssl s_client has a new '-servername ...' option.
1428 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1429 '-key2 ...', '-servername_fatal' (subject to change). This allows
1430 testing the HostName extension for a specific single host name ('-cert'
1431 and '-key' remain fallbacks for handshakes without HostName
1432 negotiation). If the unrecogninzed_name alert has to be sent, this by
1433 default is a warning; it becomes fatal with the '-servername_fatal'
1436 [Peter Sylvester, Remy Allais, Christophe Renou]
1438 *) Whirlpool hash implementation is added.
1441 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1442 bn(64,32). Because of instruction set limitations it doesn't have
1443 any negative impact on performance. This was done mostly in order
1444 to make it possible to share assembler modules, such as bn_mul_mont
1445 implementations, between 32- and 64-bit builds without hassle.
1448 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1449 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1453 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1454 dedicated Montgomery multiplication procedure, is introduced.
1455 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1456 "64-bit" performance on certain 32-bit targets.
1459 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1460 in SSL structures. New SSL ctrl to set maximum send fragment size.
1461 Save memory by seeting the I/O buffer sizes dynamically instead of
1462 using the maximum available value.
1465 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1466 in addition to the text details.
1469 *) Very, very preliminary EXPERIMENTAL support for printing of general
1470 ASN1 structures. This currently produces rather ugly output and doesn't
1471 handle several customised structures at all.
1474 *) Integrated support for PVK file format and some related formats such
1475 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1476 these in the 'rsa' and 'dsa' utilities.
1479 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1482 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1483 place for the (very old) "NETSCAPE" format certificates which are now
1484 handled using new ASN1 code equivalents.
1487 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1488 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1489 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1492 *) Modify CRL distribution points extension code to print out previously
1493 unsupported fields. Enhance extension setting code to allow setting of
1497 *) Add print and set support for Issuing Distribution Point CRL extension.
1500 *) Change 'Configure' script to enable Camellia by default.
1503 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1505 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1506 Thanks to Antonio Martin, Enterprise Secure Access Research and
1507 Development, Cisco Systems, Inc. for discovering this bug and
1508 preparing a fix. (CVE-2012-0050)
1511 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1513 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1514 of the Vaudenay padding oracle attack on CBC mode encryption
1515 which enables an efficient plaintext recovery attack against
1516 the OpenSSL implementation of DTLS. Their attack exploits timing
1517 differences arising during decryption processing. A research
1518 paper describing this attack can be found at:
1519 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1520 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1521 Security Group at Royal Holloway, University of London
1522 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1523 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1524 for preparing the fix. (CVE-2011-4108)
1525 [Robin Seggelmann, Michael Tuexen]
1527 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1528 [Ben Laurie, Kasper <ekasper@google.com>]
1530 *) Clear bytes used for block padding of SSL 3.0 records.
1532 [Adam Langley (Google)]
1534 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1535 Kadianakis <desnacked@gmail.com> for discovering this issue and
1536 Adam Langley for preparing the fix. (CVE-2011-4619)
1537 [Adam Langley (Google)]
1539 *) Prevent malformed RFC3779 data triggering an assertion failure.
1540 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1541 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1542 [Rob Austein <sra@hactrn.net>]
1544 *) Fix ssl_ciph.c set-up race.
1545 [Adam Langley (Google)]
1547 *) Fix spurious failures in ecdsatest.c.
1548 [Emilia Käsper (Google)]
1550 *) Fix the BIO_f_buffer() implementation (which was mixing different
1551 interpretations of the '..._len' fields).
1552 [Adam Langley (Google)]
1554 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1555 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1556 threads won't reuse the same blinding coefficients.
1558 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1559 lock to call BN_BLINDING_invert_ex, and avoids one use of
1560 BN_BLINDING_update for each BN_BLINDING structure (previously,
1561 the last update always remained unused).
1562 [Emilia Käsper (Google)]
1564 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1565 for multi-threaded use of ECDH.
1566 [Adam Langley (Google)]
1568 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1571 *) Add protection against ECDSA timing attacks as mentioned in the paper
1572 by Billy Bob Brumley and Nicola Tuveri, see:
1574 http://eprint.iacr.org/2011/232.pdf
1576 [Billy Bob Brumley and Nicola Tuveri]
1578 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1580 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1581 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1583 *) Fix bug in string printing code: if *any* escaping is enabled we must
1584 escape the escape character (backslash) or the resulting string is
1588 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1590 *) Disable code workaround for ancient and obsolete Netscape browsers
1591 and servers: an attacker can use it in a ciphersuite downgrade attack.
1592 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1595 *) Fixed J-PAKE implementation error, originally discovered by
1596 Sebastien Martini, further info and confirmation from Stefan
1597 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1600 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1602 *) Fix extension code to avoid race conditions which can result in a buffer
1603 overrun vulnerability: resumed sessions must not be modified as they can
1604 be shared by multiple threads. CVE-2010-3864
1607 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1610 *) Don't reencode certificate when calculating signature: cache and use
1611 the original encoding instead. This makes signature verification of
1612 some broken encodings work correctly.
1615 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1616 is also one of the inputs.
1617 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1619 *) Don't repeatedly append PBE algorithms to table if they already exist.
1620 Sort table on each new add. This effectively makes the table read only
1621 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1625 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1627 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1630 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1631 access or freeing data twice (CVE-2010-0742)
1632 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1634 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1635 common in certificates and some applications which only call
1636 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1640 Reduce copying into .apps and .test in makevms.com
1641 Don't try to use blank CA certificate in CA.com
1642 Allow use of C files from original directories in maketests.com
1643 [Steven M. Schweda" <sms@antinode.info>]
1645 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1647 *) When rejecting SSL/TLS records due to an incorrect version number, never
1648 update s->server with a new major version number. As of
1649 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1650 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1651 the previous behavior could result in a read attempt at NULL when
1652 receiving specific incorrect SSL/TLS records once record payload
1653 protection is active. (CVE-2010-0740)
1654 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1656 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1657 could be crashed if the relevant tables were not present (e.g. chrooted).
1658 [Tomas Hoger <thoger@redhat.com>]
1660 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1662 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1663 [Martin Olsson, Neel Mehta]
1665 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1666 accommodate for stack sorting, always a write lock!).
1669 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1670 excessive delays in the RAND_poll(): over a minute. As a workaround
1671 include a time check in the inner Heap32Next loop too.
1674 *) The code that handled flushing of data in SSL/TLS originally used the
1675 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1676 the problem outlined in PR#1949. The fix suggested there however can
1677 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1678 of Apache). So instead simplify the code to flush unconditionally.
1679 This should be fine since flushing with no data to flush is a no op.
1682 *) Handle TLS versions 2.0 and later properly and correctly use the
1683 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1684 off ancient servers have a habit of sticking around for a while...
1687 *) Modify compression code so it frees up structures without using the
1688 ex_data callbacks. This works around a problem where some applications
1689 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1690 restarting) then use compression (e.g. SSL with compression) later.
1691 This results in significant per-connection memory leaks and
1692 has caused some security issues including CVE-2008-1678 and
1696 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1697 change when encrypting or decrypting.
1700 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1701 connect and renegotiate with servers which do not support RI.
1702 Until RI is more widely deployed this option is enabled by default.
1705 *) Add "missing" ssl ctrls to clear options and mode.
1708 *) If client attempts to renegotiate and doesn't support RI respond with
1709 a no_renegotiation alert as required by RFC5746. Some renegotiating
1710 TLS clients will continue a connection gracefully when they receive
1711 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1712 waiting for a server hello which it will never receive. Now we treat a
1713 received no_renegotiation alert as a fatal error. This is because
1714 applications requesting a renegotiation might well expect it to succeed
1715 and would have no code in place to handle the server denying it so the
1716 only safe thing to do is to terminate the connection.
1719 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1720 peer supports secure renegotiation and 0 otherwise. Print out peer
1721 renegotiation support in s_client/s_server.
1724 *) Replace the highly broken and deprecated SPKAC certification method with
1725 the updated NID creation version. This should correctly handle UTF8.
1728 *) Implement RFC5746. Re-enable renegotiation but require the extension
1729 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1730 turns out to be a bad idea. It has been replaced by
1731 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1732 SSL_CTX_set_options(). This is really not recommended unless you
1733 know what you are doing.
1734 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1736 *) Fixes to stateless session resumption handling. Use initial_ctx when
1737 issuing and attempting to decrypt tickets in case it has changed during
1738 servername handling. Use a non-zero length session ID when attempting
1739 stateless session resumption: this makes it possible to determine if
1740 a resumption has occurred immediately after receiving server hello
1741 (several places in OpenSSL subtly assume this) instead of later in
1745 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1746 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1747 fixes for a few places where the return code is not checked
1749 [Julia Lawall <julia@diku.dk>]
1751 *) Add --strict-warnings option to Configure script to include devteam
1752 warnings in other configurations.
1755 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1756 makes it possible to install openssl libraries in locations which
1757 have names other than "lib", for example "/usr/lib64" which some
1759 [Steve Henson, based on patch from Jeremy Utley]
1761 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1762 X690 8.9.12 and can produce some misleading textual output of OIDs.
1763 [Steve Henson, reported by Dan Kaminsky]
1765 *) Delete MD2 from algorithm tables. This follows the recommendation in
1766 several standards that it is not used in new applications due to
1767 several cryptographic weaknesses. For binary compatibility reasons
1768 the MD2 API is still compiled in by default.
1771 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1775 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1776 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1778 [Guenter <lists@gknw.net>]
1780 *) Fix the server certificate chain building code to use X509_verify_cert(),
1781 it used to have an ad-hoc builder which was unable to cope with anything
1782 other than a simple chain.
1783 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1785 *) Don't check self signed certificate signatures in X509_verify_cert()
1786 by default (a flag can override this): it just wastes time without
1787 adding any security. As a useful side effect self signed root CAs
1788 with non-FIPS digests are now usable in FIPS mode.
1791 *) In dtls1_process_out_of_seq_message() the check if the current message
1792 is already buffered was missing. For every new message was memory
1793 allocated, allowing an attacker to perform an denial of service attack
1794 with sending out of seq handshake messages until there is no memory
1795 left. Additionally every future messege was buffered, even if the
1796 sequence number made no sense and would be part of another handshake.
1797 So only messages with sequence numbers less than 10 in advance will be
1798 buffered. (CVE-2009-1378)
1799 [Robin Seggelmann, discovered by Daniel Mentz]
1801 *) Records are buffered if they arrive with a future epoch to be
1802 processed after finishing the corresponding handshake. There is
1803 currently no limitation to this buffer allowing an attacker to perform
1804 a DOS attack with sending records with future epochs until there is no
1805 memory left. This patch adds the pqueue_size() function to detemine
1806 the size of a buffer and limits the record buffer to 100 entries.
1808 [Robin Seggelmann, discovered by Daniel Mentz]
1810 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1811 parent structure is freed. (CVE-2009-1379)
1814 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1815 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1818 [Ilya O. <vrghost@gmail.com>]
1820 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1822 *) Disable renegotiation completely - this fixes a severe security
1823 problem (CVE-2009-3555) at the cost of breaking all
1824 renegotiation. Renegotiation can be re-enabled by setting
1825 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1826 run-time. This is really not recommended unless you know what
1830 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1832 *) Don't set val to NULL when freeing up structures, it is freed up by
1833 underlying code. If sizeof(void *) > sizeof(long) this can result in
1834 zeroing past the valid field. (CVE-2009-0789)
1835 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1837 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1838 checked correctly. This would allow some invalid signed attributes to
1839 appear to verify correctly. (CVE-2009-0591)
1840 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1842 *) Reject UniversalString and BMPString types with invalid lengths. This
1843 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1844 a legal length. (CVE-2009-0590)
1847 *) Set S/MIME signing as the default purpose rather than setting it
1848 unconditionally. This allows applications to override it at the store
1852 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1853 to handle some structures.
1856 *) Improve efficiency of mem_gets: don't search whole buffer each time
1858 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1860 *) New -hex option for openssl rand.
1863 *) Print out UTF8String and NumericString when parsing ASN1.
1866 *) Support NumericString type for name components.
1869 *) Allow CC in the environment to override the automatically chosen
1870 compiler. Note that nothing is done to ensure flags work with the
1874 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1876 *) Properly check EVP_VerifyFinal() and similar return values
1878 [Ben Laurie, Bodo Moeller, Google Security Team]
1880 *) Enable TLS extensions by default.
1883 *) Allow the CHIL engine to be loaded, whether the application is
1884 multithreaded or not. (This does not release the developer from the
1885 obligation to set up the dynamic locking callbacks.)
1886 [Sander Temme <sander@temme.net>]
1888 *) Use correct exit code if there is an error in dgst command.
1889 [Steve Henson; problem pointed out by Roland Dirlewanger]
1891 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1892 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1895 *) Add experimental JPAKE support, including demo authentication in
1896 s_client and s_server.
1899 *) Set the comparison function in v3_addr_canonize().
1900 [Rob Austein <sra@hactrn.net>]
1902 *) Add support for XMPP STARTTLS in s_client.
1903 [Philip Paeps <philip@freebsd.org>]
1905 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1906 to ensure that even with this option, only ciphersuites in the
1907 server's preference list will be accepted. (Note that the option
1908 applies only when resuming a session, so the earlier behavior was
1909 just about the algorithm choice for symmetric cryptography.)
1912 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1914 *) Fix NULL pointer dereference if a DTLS server received
1915 ChangeCipherSpec as first record (CVE-2009-1386).
1918 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1919 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1922 *) The fix in 0.9.8c that supposedly got rid of unsafe
1923 double-checked locking was incomplete for RSA blinding,
1924 addressing just one layer of what turns out to have been
1925 doubly unsafe triple-checked locking.
1927 So now fix this for real by retiring the MONT_HELPER macro
1928 in crypto/rsa/rsa_eay.c.
1930 [Bodo Moeller; problem pointed out by Marius Schilder]
1932 *) Various precautionary measures:
1934 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1936 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1937 (NB: This would require knowledge of the secret session ticket key
1938 to exploit, in which case you'd be SOL either way.)
1940 - Change bn_nist.c so that it will properly handle input BIGNUMs
1941 outside the expected range.
1943 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1946 [Neel Mehta, Bodo Moeller]
1948 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1949 the load fails. Useful for distros.
1950 [Ben Laurie and the FreeBSD team]
1952 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1955 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1958 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1960 This work was sponsored by Logica.
1963 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1964 keystores. Support for SSL/TLS client authentication too.
1965 Not compiled unless enable-capieng specified to Configure.
1967 This work was sponsored by Logica.
1970 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1971 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1972 attribute creation routines such as certifcate requests and PKCS#12
1976 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1978 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1979 handshake which could lead to a cilent crash as found using the
1980 Codenomicon TLS test suite (CVE-2008-1672)
1981 [Steve Henson, Mark Cox]
1983 *) Fix double free in TLS server name extensions which could lead to
1984 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1987 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1989 Clear the error queue to ensure that error entries left from
1990 older function calls do not interfere with the correct operation.
1991 [Lutz Jaenicke, Erik de Castro Lopo]
1993 *) Remove root CA certificates of commercial CAs:
1995 The OpenSSL project does not recommend any specific CA and does not
1996 have any policy with respect to including or excluding any CA.
1997 Therefore it does not make any sense to ship an arbitrary selection
1998 of root CA certificates with the OpenSSL software.
2001 *) RSA OAEP patches to fix two separate invalid memory reads.
2002 The first one involves inputs when 'lzero' is greater than
2003 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2004 before the beginning of from). The second one involves inputs where
2005 the 'db' section contains nothing but zeroes (there is a one-byte
2006 invalid read after the end of 'db').
2007 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2009 *) Partial backport from 0.9.9-dev:
2011 Introduce bn_mul_mont (dedicated Montgomery multiplication
2012 procedure) as a candidate for BIGNUM assembler implementation.
2013 While 0.9.9-dev uses assembler for various architectures, only
2014 x86_64 is available by default here in the 0.9.8 branch, and
2015 32-bit x86 is available through a compile-time setting.
2017 To try the 32-bit x86 assembler implementation, use Configure
2018 option "enable-montasm" (which exists only for this backport).
2020 As "enable-montasm" for 32-bit x86 disclaims code stability
2021 anyway, in this constellation we activate additional code
2022 backported from 0.9.9-dev for further performance improvements,
2023 namely BN_from_montgomery_word. (To enable this otherwise,
2024 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2026 [Andy Polyakov (backport partially by Bodo Moeller)]
2028 *) Add TLS session ticket callback. This allows an application to set
2029 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2030 values. This is useful for key rollover for example where several key
2031 sets may exist with different names.
2034 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2035 This was broken until now in 0.9.8 releases, such that the only way
2036 a registered ENGINE could be used (assuming it initialises
2037 successfully on the host) was to explicitly set it as the default
2038 for the relevant algorithms. This is in contradiction with 0.9.7
2039 behaviour and the documentation. With this fix, when an ENGINE is
2040 registered into a given algorithm's table of implementations, the
2041 'uptodate' flag is reset so that auto-discovery will be used next
2042 time a new context for that algorithm attempts to select an
2044 [Ian Lister (tweaked by Geoff Thorpe)]
2046 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2047 implemention in the following ways:
2049 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2052 Lack of BER streaming support means one pass streaming processing is
2053 only supported if data is detached: setting the streaming flag is
2054 ignored for embedded content.
2056 CMS support is disabled by default and must be explicitly enabled
2057 with the enable-cms configuration option.
2060 *) Update the GMP engine glue to do direct copies between BIGNUM and
2061 mpz_t when openssl and GMP use the same limb size. Otherwise the
2062 existing "conversion via a text string export" trick is still used.
2063 [Paul Sheer <paulsheer@gmail.com>]
2065 *) Zlib compression BIO. This is a filter BIO which compressed and
2066 uncompresses any data passed through it.
2069 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2070 RFC3394 compatible AES key wrapping.
2073 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2074 sets string data without copying. X509_ALGOR_set0() and
2075 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2076 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2077 from an X509_ATTRIBUTE structure optionally checking it occurs only
2078 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2082 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2083 to get the expected BN_FLG_CONSTTIME behavior.
2084 [Bodo Moeller (Google)]
2088 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2089 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2090 - added some more tests to do_tests.pl
2091 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2092 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2093 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2094 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2095 - various changes to netware.pl to enable gcc-cross builds on Win32
2097 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2098 - various changes to fix missing prototype warnings
2099 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2100 - added AES, WHIRLPOOL and CPUID assembler code to build files
2101 - added missing AES assembler make rules to mk1mf.pl
2102 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2103 [Guenter Knauf <eflash@gmx.net>]
2105 *) Implement certificate status request TLS extension defined in RFC3546.
2106 A client can set the appropriate parameters and receive the encoded
2107 OCSP response via a callback. A server can query the supplied parameters
2108 and set the encoded OCSP response in the callback. Add simplified examples
2109 to s_client and s_server.
2112 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2114 *) Fix various bugs:
2115 + Binary incompatibility of ssl_ctx_st structure
2116 + DTLS interoperation with non-compliant servers
2117 + Don't call get_session_cb() without proposed session
2118 + Fix ia64 assembler code
2119 [Andy Polyakov, Steve Henson]
2121 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2123 *) DTLS Handshake overhaul. There were longstanding issues with
2124 OpenSSL DTLS implementation, which were making it impossible for
2125 RFC 4347 compliant client to communicate with OpenSSL server.
2126 Unfortunately just fixing these incompatibilities would "cut off"
2127 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2128 server keeps tolerating non RFC compliant syntax. The opposite is
2129 not true, 0.9.8f client can not communicate with earlier server.
2130 This update even addresses CVE-2007-4995.
2133 *) Changes to avoid need for function casts in OpenSSL: some compilers
2134 (gcc 4.2 and later) reject their use.
2135 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2138 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2139 RFC4507bis. The encrypted ticket format is an encrypted encoded
2140 SSL_SESSION structure, that way new session features are automatically
2143 If a client application caches session in an SSL_SESSION structure
2144 support is transparent because tickets are now stored in the encoded
2147 The SSL_CTX structure automatically generates keys for ticket
2148 protection in servers so again support should be possible
2149 with no application modification.
2151 If a client or server wishes to disable RFC4507 support then the option
2152 SSL_OP_NO_TICKET can be set.
2154 Add a TLS extension debugging callback to allow the contents of any client
2155 or server extensions to be examined.
2157 This work was sponsored by Google.
2160 *) Add initial support for TLS extensions, specifically for the server_name
2161 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2162 have new members for a host name. The SSL data structure has an
2163 additional member SSL_CTX *initial_ctx so that new sessions can be
2164 stored in that context to allow for session resumption, even after the
2165 SSL has been switched to a new SSL_CTX in reaction to a client's
2166 server_name extension.
2168 New functions (subject to change):
2170 SSL_get_servername()
2171 SSL_get_servername_type()
2174 New CTRL codes and macros (subject to change):
2176 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2177 - SSL_CTX_set_tlsext_servername_callback()
2178 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2179 - SSL_CTX_set_tlsext_servername_arg()
2180 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2182 openssl s_client has a new '-servername ...' option.
2184 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2185 '-key2 ...', '-servername_fatal' (subject to change). This allows
2186 testing the HostName extension for a specific single host name ('-cert'
2187 and '-key' remain fallbacks for handshakes without HostName
2188 negotiation). If the unrecogninzed_name alert has to be sent, this by
2189 default is a warning; it becomes fatal with the '-servername_fatal'
2192 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2194 *) Add AES and SSE2 assembly language support to VC++ build.
2197 *) Mitigate attack on final subtraction in Montgomery reduction.
2200 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2201 (which previously caused an internal error).
2204 *) Squeeze another 10% out of IGE mode when in != out.
2207 *) AES IGE mode speedup.
2208 [Dean Gaudet (Google)]
2210 *) Add the Korean symmetric 128-bit cipher SEED (see
2211 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2212 add SEED ciphersuites from RFC 4162:
2214 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2215 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2216 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2217 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2219 To minimize changes between patchlevels in the OpenSSL 0.9.8
2220 series, SEED remains excluded from compilation unless OpenSSL
2221 is configured with 'enable-seed'.
2222 [KISA, Bodo Moeller]
2224 *) Mitigate branch prediction attacks, which can be practical if a
2225 single processor is shared, allowing a spy process to extract
2226 information. For detailed background information, see
2227 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2228 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2229 and Necessary Software Countermeasures"). The core of the change
2230 are new versions BN_div_no_branch() and
2231 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2232 respectively, which are slower, but avoid the security-relevant
2233 conditional branches. These are automatically called by BN_div()
2234 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2235 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2236 remove a conditional branch.
2238 BN_FLG_CONSTTIME is the new name for the previous
2239 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2240 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2241 in the exponent causes BN_mod_exp_mont() to use the alternative
2242 implementation in BN_mod_exp_mont_consttime().) The old name
2243 remains as a deprecated alias.
2245 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2246 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2247 constant-time implementations for more than just exponentiation.
2248 Here too the old name is kept as a deprecated alias.
2250 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2251 the BN_BLINDING structure gets an independent copy of the
2252 modulus. This means that the previous "BIGNUM *m" argument to
2253 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2254 essentially becomes "const BIGNUM *m", although we can't actually
2255 change this in the header file before 0.9.9. It allows
2256 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2257 enable BN_FLG_CONSTTIME.
2259 [Matthew D Wood (Intel Corp)]
2261 *) In the SSL/TLS server implementation, be strict about session ID
2262 context matching (which matters if an application uses a single
2263 external cache for different purposes). Previously,
2264 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2265 set. This did ensure strict client verification, but meant that,
2266 with applications using a single external cache for quite
2267 different requirements, clients could circumvent ciphersuite
2268 restrictions for a given session ID context by starting a session
2269 in a different context.
2272 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2273 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2274 authentication-only ciphersuites.
2277 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2278 not complete and could lead to a possible single byte overflow
2279 (CVE-2007-5135) [Ben Laurie]
2281 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2283 *) Since AES128 and AES256 (and similarly Camellia128 and
2284 Camellia256) share a single mask bit in the logic of
2285 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2286 kludge to work properly if AES128 is available and AES256 isn't
2287 (or if Camellia128 is available and Camellia256 isn't).
2290 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2291 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2292 When a point or a seed is encoded in a BIT STRING, we need to
2293 prevent the removal of trailing zero bits to get the proper DER
2294 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2295 of a NamedBitList, for which trailing 0 bits need to be removed.)
2298 *) Have SSL/TLS server implementation tolerate "mismatched" record
2299 protocol version while receiving ClientHello even if the
2300 ClientHello is fragmented. (The server can't insist on the
2301 particular protocol version it has chosen before the ServerHello
2302 message has informed the client about his choice.)
2305 *) Add RFC 3779 support.
2306 [Rob Austein for ARIN, Ben Laurie]
2308 *) Load error codes if they are not already present instead of using a
2309 static variable. This allows them to be cleanly unloaded and reloaded.
2310 Improve header file function name parsing.
2313 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2314 or CAPABILITY handshake as required by RFCs.
2317 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2319 *) Introduce limits to prevent malicious keys being able to
2320 cause a denial of service. (CVE-2006-2940)
2321 [Steve Henson, Bodo Moeller]
2323 *) Fix ASN.1 parsing of certain invalid structures that can result
2324 in a denial of service. (CVE-2006-2937) [Steve Henson]
2326 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2327 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2329 *) Fix SSL client code which could crash if connecting to a
2330 malicious SSLv2 server. (CVE-2006-4343)
2331 [Tavis Ormandy and Will Drewry, Google Security Team]
2333 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2334 match only those. Before that, "AES256-SHA" would be interpreted
2335 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2336 the same strength classification in 0.9.7h) as we currently only
2337 have a single AES bit in the ciphersuite description bitmap.
2338 That change, however, also applied to ciphersuite strings such as
2339 "RC4-MD5" that intentionally matched multiple ciphersuites --
2340 namely, SSL 2.0 ciphersuites in addition to the more common ones
2341 from SSL 3.0/TLS 1.0.
2343 So we change the selection algorithm again: Naming an explicit
2344 ciphersuite selects this one ciphersuite, and any other similar
2345 ciphersuite (same bitmap) from *other* protocol versions.
2346 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2347 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2349 Since SSL 2.0 does not have any ciphersuites for which the
2350 128/256 bit distinction would be relevant, this works for now.
2351 The proper fix will be to use different bits for AES128 and
2352 AES256, which would have avoided the problems from the beginning;
2353 however, bits are scarce, so we can only do this in a new release
2354 (not just a patchlevel) when we can change the SSL_CIPHER
2355 definition to split the single 'unsigned long mask' bitmap into
2356 multiple values to extend the available space.
2360 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2362 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2363 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2365 *) Add AES IGE and biIGE modes.
2368 *) Change the Unix randomness entropy gathering to use poll() when
2369 possible instead of select(), since the latter has some
2370 undesirable limitations.
2371 [Darryl Miles via Richard Levitte and Bodo Moeller]
2373 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2374 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2375 cannot be implicitly activated as part of, e.g., the "AES" alias.
2376 However, please upgrade to OpenSSL 0.9.9[-dev] for
2377 non-experimental use of the ECC ciphersuites to get TLS extension
2378 support, which is required for curve and point format negotiation
2379 to avoid potential handshake problems.
2382 *) Disable rogue ciphersuites:
2384 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2385 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2386 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2388 The latter two were purportedly from
2389 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2392 Also deactivate the remaining ciphersuites from
2393 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2394 unofficial, and the ID has long expired.
2397 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2398 dual-core machines) and other potential thread-safety issues.
2401 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2402 versions), which is now available for royalty-free use
2403 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2404 Also, add Camellia TLS ciphersuites from RFC 4132.
2406 To minimize changes between patchlevels in the OpenSSL 0.9.8
2407 series, Camellia remains excluded from compilation unless OpenSSL
2408 is configured with 'enable-camellia'.
2411 *) Disable the padding bug check when compression is in use. The padding
2412 bug check assumes the first packet is of even length, this is not
2413 necessarily true if compresssion is enabled and can result in false
2414 positives causing handshake failure. The actual bug test is ancient
2415 code so it is hoped that implementations will either have fixed it by
2416 now or any which still have the bug do not support compression.
2419 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2421 *) When applying a cipher rule check to see if string match is an explicit
2422 cipher suite and only match that one cipher suite if it is.
2425 *) Link in manifests for VC++ if needed.
2426 [Austin Ziegler <halostatue@gmail.com>]
2428 *) Update support for ECC-based TLS ciphersuites according to
2429 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2430 TLS extensions, which are supported starting with the 0.9.9
2431 branch, not in the OpenSSL 0.9.8 branch).
2434 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2435 opaque EVP_CIPHER_CTX handling.
2438 *) Fixes and enhancements to zlib compression code. We now only use
2439 "zlib1.dll" and use the default __cdecl calling convention on Win32
2440 to conform with the standards mentioned here:
2441 http://www.zlib.net/DLL_FAQ.txt
2442 Static zlib linking now works on Windows and the new --with-zlib-include
2443 --with-zlib-lib options to Configure can be used to supply the location
2444 of the headers and library. Gracefully handle case where zlib library
2448 *) Several fixes and enhancements to the OID generation code. The old code
2449 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2450 handle numbers larger than ULONG_MAX, truncated printing and had a
2451 non standard OBJ_obj2txt() behaviour.
2454 *) Add support for building of engines under engine/ as shared libraries
2455 under VC++ build system.
2458 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2459 Hopefully, we will not see any false combination of paths any more.
2462 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2464 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2465 (part of SSL_OP_ALL). This option used to disable the
2466 countermeasure against man-in-the-middle protocol-version
2467 rollback in the SSL 2.0 server implementation, which is a bad
2468 idea. (CVE-2005-2969)
2470 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2471 for Information Security, National Institute of Advanced Industrial
2472 Science and Technology [AIST], Japan)]
2474 *) Add two function to clear and return the verify parameter flags.
2477 *) Keep cipherlists sorted in the source instead of sorting them at
2478 runtime, thus removing the need for a lock.
2481 *) Avoid some small subgroup attacks in Diffie-Hellman.
2482 [Nick Mathewson and Ben Laurie]
2484 *) Add functions for well-known primes.
2487 *) Extended Windows CE support.
2488 [Satoshi Nakamura and Andy Polyakov]
2490 *) Initialize SSL_METHOD structures at compile time instead of during
2491 runtime, thus removing the need for a lock.
2494 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2495 attempting to decrypt each encrypted key in turn. Add support to
2499 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2501 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2504 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2507 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2508 key into the same file any more.
2511 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2514 *) Add -utf8 command line and config file option to 'ca'.
2515 [Stefan <stf@udoma.org]
2517 *) Removed the macro des_crypt(), as it seems to conflict with some
2518 libraries. Use DES_crypt().
2521 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2522 involves renaming the source and generated shared-libs for
2523 both. The engines will accept the corrected or legacy ids
2524 ('ncipher' and '4758_cca' respectively) when binding. NB,
2525 this only applies when building 'shared'.
2526 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2528 *) Add attribute functions to EVP_PKEY structure. Modify
2529 PKCS12_create() to recognize a CSP name attribute and
2530 use it. Make -CSP option work again in pkcs12 utility.
2533 *) Add new functionality to the bn blinding code:
2534 - automatic re-creation of the BN_BLINDING parameters after
2535 a fixed number of uses (currently 32)
2536 - add new function for parameter creation
2537 - introduce flags to control the update behaviour of the
2538 BN_BLINDING parameters
2539 - hide BN_BLINDING structure
2540 Add a second BN_BLINDING slot to the RSA structure to improve
2541 performance when a single RSA object is shared among several
2545 *) Add support for DTLS.
2546 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2548 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2549 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2552 *) Remove buggy and incompletet DH cert support from
2553 ssl/ssl_rsa.c and ssl/s3_both.c
2556 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2557 the apps/openssl applications.
2560 *) Compile clean with "-Wall -Wmissing-prototypes
2561 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2562 DEBUG_SAFESTACK must also be set.
2565 *) Change ./Configure so that certain algorithms can be disabled by default.
2566 The new counterpiece to "no-xxx" is "enable-xxx".
2568 The patented RC5 and MDC2 algorithms will now be disabled unless
2569 "enable-rc5" and "enable-mdc2", respectively, are specified.
2571 (IDEA remains enabled despite being patented. This is because IDEA
2572 is frequently required for interoperability, and there is no license
2573 fee for non-commercial use. As before, "no-idea" can be used to
2574 avoid this algorithm.)
2578 *) Add processing of proxy certificates (see RFC 3820). This work was
2579 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2580 EGEE (Enabling Grids for E-science in Europe).
2583 *) RC4 performance overhaul on modern architectures/implementations, such
2584 as Intel P4, IA-64 and AMD64.
2587 *) New utility extract-section.pl. This can be used specify an alternative
2588 section number in a pod file instead of having to treat each file as
2589 a separate case in Makefile. This can be done by adding two lines to the
2592 =for comment openssl_section:XXX
2594 The blank line is mandatory.
2598 *) New arguments -certform, -keyform and -pass for s_client and s_server
2599 to allow alternative format key and certificate files and passphrase
2603 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2604 update associated structures and add various utility functions.
2606 Add new policy related verify parameters, include policy checking in
2607 standard verify code. Enhance 'smime' application with extra parameters
2608 to support policy checking and print out.
2611 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2612 Nehemiah processors. These extensions support AES encryption in hardware
2613 as well as RNG (though RNG support is currently disabled).
2614 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2616 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2619 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2620 [Andy Polyakov and a number of other people]
2622 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2623 implementation contributed by IBM.
2624 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2626 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2627 exponent rather than 'unsigned long'. There is a corresponding change to
2628 the new 'rsa_keygen' element of the RSA_METHOD structure.
2629 [Jelte Jansen, Geoff Thorpe]
2631 *) Functionality for creating the initial serial number file is now
2632 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2634 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2635 number file to 1, which is bound to cause problems. To avoid
2636 the problems while respecting compatibility between different 0.9.7
2637 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2638 CA.pl for serial number initialization. With the new release 0.9.8,
2639 we can fix the problem directly in the 'ca' utility.)
2642 *) Reduced header interdepencies by declaring more opaque objects in
2643 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2644 give fewer recursive includes, which could break lazy source code - so
2645 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2646 developers should define this symbol when building and using openssl to
2647 ensure they track the recommended behaviour, interfaces, [etc], but
2648 backwards-compatible behaviour prevails when this isn't defined.
2651 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2654 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2655 This will generate a random key of the appropriate length based on the
2656 cipher context. The EVP_CIPHER can provide its own random key generation
2657 routine to support keys of a specific form. This is used in the des and
2658 3des routines to generate a key of the correct parity. Update S/MIME
2659 code to use new functions and hence generate correct parity DES keys.
2660 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2661 valid (weak or incorrect parity).
2664 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2665 as looking them up. This is useful when the verified structure may contain
2666 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2667 present unless the new PKCS7_NO_CRL flag is asserted.
2670 *) Extend ASN1 oid configuration module. It now additionally accepts the
2673 shortName = some long name, 1.2.3.4
2676 *) Reimplemented the BN_CTX implementation. There is now no more static
2677 limitation on the number of variables it can handle nor the depth of the
2678 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2679 information can now expand as required, and rather than having a single
2680 static array of bignums, BN_CTX now uses a linked-list of such arrays
2681 allowing it to expand on demand whilst maintaining the usefulness of
2682 BN_CTX's "bundling".
2685 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2686 to allow all RSA operations to function using a single BN_CTX.
2689 *) Preliminary support for certificate policy evaluation and checking. This
2690 is initially intended to pass the tests outlined in "Conformance Testing
2691 of Relying Party Client Certificate Path Processing Logic" v1.07.
2694 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2695 remained unused and not that useful. A variety of other little bignum
2696 tweaks and fixes have also been made continuing on from the audit (see
2700 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2701 associated ASN1, EVP and SSL functions and old ASN1 macros.
2704 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2705 and this should never fail. So the return value from the use of
2706 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2707 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2710 *) BN_CTX_get() should return zero-valued bignums, providing the same
2711 initialised value as BN_new().
2712 [Geoff Thorpe, suggested by Ulf Möller]
2714 *) Support for inhibitAnyPolicy certificate extension.
2717 *) An audit of the BIGNUM code is underway, for which debugging code is
2718 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2719 is considered valid when processing BIGNUMs, and causes execution to
2720 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2721 further steps are taken to deliberately pollute unused data in BIGNUM
2722 structures to try and expose faulty code further on. For now, openssl will
2723 (in its default mode of operation) continue to tolerate the inconsistent
2724 forms that it has tolerated in the past, but authors and packagers should
2725 consider trying openssl and their own applications when compiled with
2726 these debugging symbols defined. It will help highlight potential bugs in
2727 their own code, and will improve the test coverage for OpenSSL itself. At
2728 some point, these tighter rules will become openssl's default to improve
2729 maintainability, though the assert()s and other overheads will remain only
2730 in debugging configurations. See bn.h for more details.
2731 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2733 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2734 that can only be obtained through BN_CTX_new() (which implicitly
2735 initialises it). The presence of this function only made it possible
2736 to overwrite an existing structure (and cause memory leaks).
2739 *) Because of the callback-based approach for implementing LHASH as a
2740 template type, lh_insert() adds opaque objects to hash-tables and
2741 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2742 to clean up those corresponding objects before destroying the hash table
2743 (and losing the object pointers). So some over-zealous constifications in
2744 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2745 objects as "const" and the lh_doall[_arg] callback wrappers are not
2746 prototyped to have "const" restrictions on the object pointers they are
2747 given (and so aren't required to cast them away any more).
2750 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2751 (speed) prefers to use its own implementation. The two implementations
2752 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2753 its object type properly exposed (MS_TM) instead of casting to/from "char
2754 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2755 aren't necessarily the greatest nomenclatures - but this is what was used
2756 internally to the implementation so I've used that for now.
2759 *) Ensure that deprecated functions do not get compiled when
2760 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2761 the self-tests were still using deprecated key-generation functions so
2762 these have been updated also.
2765 *) Reorganise PKCS#7 code to separate the digest location functionality
2766 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2767 New function PKCS7_set_digest() to set the digest type for PKCS#7
2768 digestedData type. Add additional code to correctly generate the
2769 digestedData type and add support for this type in PKCS7 initialization
2773 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2774 structure of type "other".
2777 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2778 sure the loop does correctly stop and breaking ("division by zero")
2779 modulus operations are not performed. The (pre-generated) prime
2780 table crypto/bn/bn_prime.h was already correct, but it could not be
2781 re-generated on some platforms because of the "division by zero"
2782 situation in the script.
2783 [Ralf S. Engelschall]
2785 *) Update support for ECC-based TLS ciphersuites according to
2786 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2787 SHA-1 now is only used for "small" curves (where the
2788 representation of a field element takes up to 24 bytes); for
2789 larger curves, the field element resulting from ECDH is directly
2790 used as premaster secret.
2791 [Douglas Stebila (Sun Microsystems Laboratories)]
2793 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2794 curve secp160r1 to the tests.
2795 [Douglas Stebila (Sun Microsystems Laboratories)]
2797 *) Add the possibility to load symbols globally with DSO.
2798 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2800 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2801 control of the error stack.
2804 *) Add support for STORE in ENGINE.
2807 *) Add the STORE type. The intention is to provide a common interface
2808 to certificate and key stores, be they simple file-based stores, or
2809 HSM-type store, or LDAP stores, or...
2810 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2813 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2814 pass a list of arguments to any function as well as provide a way
2815 for a function to pass data back to the caller.
2818 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2819 works like BUF_strdup() but can be used to duplicate a portion of
2820 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2824 *) Add the function sk_find_ex() which works like sk_find(), but will
2825 return an index to an element even if an exact match couldn't be
2826 found. The index is guaranteed to point at the element where the
2827 searched-for key would be inserted to preserve sorting order.
2830 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2831 takes an extra flags argument for optional functionality. Currently,
2832 the following flags are defined:
2834 OBJ_BSEARCH_VALUE_ON_NOMATCH
2835 This one gets OBJ_bsearch_ex() to return a pointer to the first
2836 element where the comparing function returns a negative or zero
2839 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2840 This one gets OBJ_bsearch_ex() to return a pointer to the first
2841 element where the comparing function returns zero. This is useful
2842 if there are more than one element where the comparing function
2846 *) Make it possible to create self-signed certificates with 'openssl ca'
2847 in such a way that the self-signed certificate becomes part of the
2848 CA database and uses the same mechanisms for serial number generation
2849 as all other certificate signing. The new flag '-selfsign' enables
2850 this functionality. Adapt CA.sh and CA.pl.in.
2853 *) Add functionality to check the public key of a certificate request
2854 against a given private. This is useful to check that a certificate
2855 request can be signed by that key (self-signing).
2858 *) Make it possible to have multiple active certificates with the same
2859 subject in the CA index file. This is done only if the keyword
2860 'unique_subject' is set to 'no' in the main CA section (default
2861 if 'CA_default') of the configuration file. The value is saved
2862 with the database itself in a separate index attribute file,
2863 named like the index file with '.attr' appended to the name.
2866 *) Generate muti valued AVAs using '+' notation in config files for
2870 *) Support for nameConstraints certificate extension.
2873 *) Support for policyConstraints certificate extension.
2876 *) Support for policyMappings certificate extension.
2879 *) Make sure the default DSA_METHOD implementation only uses its
2880 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2881 and change its own handlers to be NULL so as to remove unnecessary
2882 indirection. This lets alternative implementations fallback to the
2883 default implementation more easily.
2886 *) Support for directoryName in GeneralName related extensions
2890 *) Make it possible to link applications using Makefile.shared.
2891 Make that possible even when linking against static libraries!
2894 *) Support for single pass processing for S/MIME signing. This now
2895 means that S/MIME signing can be done from a pipe, in addition
2896 cleartext signing (multipart/signed type) is effectively streaming
2897 and the signed data does not need to be all held in memory.
2899 This is done with a new flag PKCS7_STREAM. When this flag is set
2900 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2901 is done after the data is output (and digests calculated) in
2902 SMIME_write_PKCS7().
2905 *) Add full support for -rpath/-R, both in shared libraries and
2906 applications, at least on the platforms where it's known how
2910 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2911 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2912 will now compute a table of multiples of the generator that
2913 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2914 faster (notably in the case of a single point multiplication,
2915 scalar * generator).
2916 [Nils Larsch, Bodo Moeller]
2918 *) IPv6 support for certificate extensions. The various extensions
2919 which use the IP:a.b.c.d can now take IPv6 addresses using the
2920 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2924 *) Added an ENGINE that implements RSA by performing private key
2925 exponentiations with the GMP library. The conversions to and from
2926 GMP's mpz_t format aren't optimised nor are any montgomery forms
2927 cached, and on x86 it appears OpenSSL's own performance has caught up.
2928 However there are likely to be other architectures where GMP could
2929 provide a boost. This ENGINE is not built in by default, but it can be
2930 specified at Configure time and should be accompanied by the necessary
2931 linker additions, eg;
2932 ./config -DOPENSSL_USE_GMP -lgmp
2935 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2936 testing availability of engines with "-t" - the old behaviour is
2937 produced by increasing the feature's verbosity with "-tt".
2940 *) ECDSA routines: under certain error conditions uninitialized BN objects
2941 could be freed. Solution: make sure initialization is performed early
2942 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2946 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2947 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2948 software implementations. For DSA and DH, parameter generation can
2949 also be overriden by providing the appropriate method callbacks.
2952 *) Change the "progress" mechanism used in key-generation and
2953 primality testing to functions that take a new BN_GENCB pointer in
2954 place of callback/argument pairs. The new API functions have "_ex"
2955 postfixes and the older functions are reimplemented as wrappers for
2956 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2957 declarations of the old functions to help (graceful) attempts to
2958 migrate to the new functions. Also, the new key-generation API
2959 functions operate on a caller-supplied key-structure and return
2960 success/failure rather than returning a key or NULL - this is to
2961 help make "keygen" another member function of RSA_METHOD etc.
2963 Example for using the new callback interface:
2965 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2969 BN_GENCB_set(&my_cb, my_callback, my_arg);
2971 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2972 /* For the meaning of a, b in calls to my_callback(), see the
2973 * documentation of the function that calls the callback.
2974 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2975 * my_callback should return 1 if it wants BN_is_prime_ex()
2976 * to continue, or 0 to stop.
2981 *) Change the ZLIB compression method to be stateful, and make it
2982 available to TLS with the number defined in
2983 draft-ietf-tls-compression-04.txt.
2986 *) Add the ASN.1 structures and functions for CertificatePair, which
2987 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2989 CertificatePair ::= SEQUENCE {
2990 forward [0] Certificate OPTIONAL,
2991 reverse [1] Certificate OPTIONAL,
2992 -- at least one of the pair shall be present -- }
2994 Also implement the PEM functions to read and write certificate
2995 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2997 This needed to be defined, mostly for the sake of the LDAP
2998 attribute crossCertificatePair, but may prove useful elsewhere as
3002 *) Make it possible to inhibit symlinking of shared libraries in
3003 Makefile.shared, for Cygwin's sake.
3006 *) Extend the BIGNUM API by creating a function
3007 void BN_set_negative(BIGNUM *a, int neg);
3008 and a macro that behave like
3009 int BN_is_negative(const BIGNUM *a);
3011 to avoid the need to access 'a->neg' directly in applications.
3014 *) Implement fast modular reduction for pseudo-Mersenne primes
3015 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3016 EC_GROUP_new_curve_GFp() will now automatically use this
3018 [Nils Larsch <nla@trustcenter.de>]
3020 *) Add new lock type (CRYPTO_LOCK_BN).
3023 *) Change the ENGINE framework to automatically load engines
3024 dynamically from specific directories unless they could be
3025 found to already be built in or loaded. Move all the
3026 current engines except for the cryptodev one to a new
3028 The engines in engines/ are built as shared libraries if
3029 the "shared" options was given to ./Configure or ./config.
3030 Otherwise, they are inserted in libcrypto.a.
3031 /usr/local/ssl/engines is the default directory for dynamic
3032 engines, but that can be overriden at configure time through
3033 the usual use of --prefix and/or --openssldir, and at run
3034 time with the environment variable OPENSSL_ENGINES.
3035 [Geoff Thorpe and Richard Levitte]
3037 *) Add Makefile.shared, a helper makefile to build shared
3038 libraries. Addapt Makefile.org.
3041 *) Add version info to Win32 DLLs.
3042 [Peter 'Luna' Runestig" <peter@runestig.com>]
3044 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3045 can be added using this API to created arbitrary PKCS#12
3046 files while avoiding the low level API.
3048 New options to PKCS12_create(), key or cert can be NULL and
3049 will then be omitted from the output file. The encryption
3050 algorithm NIDs can be set to -1 for no encryption, the mac
3051 iteration count can be set to 0 to omit the mac.
3053 Enhance pkcs12 utility by making the -nokeys and -nocerts
3054 options work when creating a PKCS#12 file. New option -nomac
3055 to omit the mac, NONE can be set for an encryption algorithm.
3056 New code is modified to use the enhanced PKCS12_create()
3057 instead of the low level API.
3060 *) Extend ASN1 encoder to support indefinite length constructed
3061 encoding. This can output sequences tags and octet strings in
3062 this form. Modify pk7_asn1.c to support indefinite length
3063 encoding. This is experimental and needs additional code to
3064 be useful, such as an ASN1 bio and some enhanced streaming
3067 Extend template encode functionality so that tagging is passed
3068 down to the template encoder.
3071 *) Let 'openssl req' fail if an argument to '-newkey' is not
3072 recognized instead of using RSA as a default.
3075 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3076 As these are not official, they are not included in "ALL";
3077 the "ECCdraft" ciphersuite group alias can be used to select them.
3078 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3080 *) Add ECDH engine support.
3081 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3083 *) Add ECDH in new directory crypto/ecdh/.
3084 [Douglas Stebila (Sun Microsystems Laboratories)]
3086 *) Let BN_rand_range() abort with an error after 100 iterations
3087 without success (which indicates a broken PRNG).
3090 *) Change BN_mod_sqrt() so that it verifies that the input value
3091 is really the square of the return value. (Previously,
3092 BN_mod_sqrt would show GIGO behaviour.)
3095 *) Add named elliptic curves over binary fields from X9.62, SECG,
3096 and WAP/WTLS; add OIDs that were still missing.
3098 [Sheueling Chang Shantz and Douglas Stebila
3099 (Sun Microsystems Laboratories)]
3101 *) Extend the EC library for elliptic curves over binary fields
3102 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3105 EC_GF2m_simple_method
3109 EC_GROUP_new_curve_GF2m
3110 EC_GROUP_set_curve_GF2m
3111 EC_GROUP_get_curve_GF2m
3112 EC_POINT_set_affine_coordinates_GF2m
3113 EC_POINT_get_affine_coordinates_GF2m
3114 EC_POINT_set_compressed_coordinates_GF2m
3116 Point compression for binary fields is disabled by default for
3117 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3120 As binary polynomials are represented as BIGNUMs, various members
3121 of the EC_GROUP and EC_POINT data structures can be shared
3122 between the implementations for prime fields and binary fields;
3123 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3124 are essentially identical to their ..._GFp counterparts.
3125 (For simplicity, the '..._GFp' prefix has been dropped from
3126 various internal method names.)
3128 An internal 'field_div' method (similar to 'field_mul' and
3129 'field_sqr') has been added; this is used only for binary fields.
3131 [Sheueling Chang Shantz and Douglas Stebila
3132 (Sun Microsystems Laboratories)]
3134 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3135 through methods ('mul', 'precompute_mult').
3137 The generic implementations (now internally called 'ec_wNAF_mul'
3138 and 'ec_wNAF_precomputed_mult') remain the default if these
3139 methods are undefined.
3141 [Sheueling Chang Shantz and Douglas Stebila
3142 (Sun Microsystems Laboratories)]
3144 *) New function EC_GROUP_get_degree, which is defined through
3145 EC_METHOD. For curves over prime fields, this returns the bit
3146 length of the modulus.
3148 [Sheueling Chang Shantz and Douglas Stebila
3149 (Sun Microsystems Laboratories)]
3151 *) New functions EC_GROUP_dup, EC_POINT_dup.
3152 (These simply call ..._new and ..._copy).
3154 [Sheueling Chang Shantz and Douglas Stebila
3155 (Sun Microsystems Laboratories)]
3157 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3158 Polynomials are represented as BIGNUMs (where the sign bit is not
3159 used) in the following functions [macros]:
3162 BN_GF2m_sub [= BN_GF2m_add]
3163 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3164 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3165 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3167 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3168 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3169 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3170 BN_GF2m_cmp [= BN_ucmp]
3172 (Note that only the 'mod' functions are actually for fields GF(2^m).
3173 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3175 For some functions, an the irreducible polynomial defining a
3176 field can be given as an 'unsigned int[]' with strictly
3177 decreasing elements giving the indices of those bits that are set;
3178 i.e., p[] represents the polynomial
3179 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3181 p[0] > p[1] > ... > p[k] = 0.
3182 This applies to the following functions:
3187 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3188 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3190 BN_GF2m_mod_sqrt_arr
3191 BN_GF2m_mod_solve_quad_arr
3195 Conversion can be performed by the following functions:
3200 bntest.c has additional tests for binary polynomial arithmetic.
3202 Two implementations for BN_GF2m_mod_div() are available.
3203 The default algorithm simply uses BN_GF2m_mod_inv() and
3204 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3205 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3206 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3208 [Sheueling Chang Shantz and Douglas Stebila
3209 (Sun Microsystems Laboratories)]
3211 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3212 functionality is disabled at compile-time.
3213 [Douglas Stebila <douglas.stebila@sun.com>]
3215 *) Change default behaviour of 'openssl asn1parse' so that more
3216 information is visible when viewing, e.g., a certificate:
3218 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3219 mode the content of non-printable OCTET STRINGs is output in a
3220 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3221 avoid the appearance of a printable string.
3222 [Nils Larsch <nla@trustcenter.de>]
3224 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3226 EC_GROUP_set_asn1_flag()
3227 EC_GROUP_get_asn1_flag()
3228 EC_GROUP_set_point_conversion_form()
3229 EC_GROUP_get_point_conversion_form()
3230 These control ASN1 encoding details:
3231 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3232 has been set to OPENSSL_EC_NAMED_CURVE.
3233 - Points are encoded in uncompressed form by default; options for
3234 asn1_for are as for point2oct, namely
3235 POINT_CONVERSION_COMPRESSED
3236 POINT_CONVERSION_UNCOMPRESSED
3237 POINT_CONVERSION_HYBRID
3239 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3242 EC_GROUP_get0_seed()
3243 EC_GROUP_get_seed_len()
3244 This is used only for ASN1 purposes (so far).
3245 [Nils Larsch <nla@trustcenter.de>]
3247 *) Add 'field_type' member to EC_METHOD, which holds the NID
3248 of the appropriate field type OID. The new function
3249 EC_METHOD_get_field_type() returns this value.
3250 [Nils Larsch <nla@trustcenter.de>]
3255 EC_POINT_point2hex()
3256 EC_POINT_hex2point()
3257 providing useful interfaces to EC_POINT_point2oct() and
3258 EC_POINT_oct2point().
3259 [Nils Larsch <nla@trustcenter.de>]
3261 *) Change internals of the EC library so that the functions
3262 EC_GROUP_set_generator()
3263 EC_GROUP_get_generator()
3264 EC_GROUP_get_order()
3265 EC_GROUP_get_cofactor()
3266 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3267 to methods, which would lead to unnecessary code duplication when
3268 adding different types of curves.
3269 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3271 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3272 arithmetic, and such that modified wNAFs are generated
3273 (which avoid length expansion in many cases).
3276 *) Add a function EC_GROUP_check_discriminant() (defined via
3277 EC_METHOD) that verifies that the curve discriminant is non-zero.
3279 Add a function EC_GROUP_check() that makes some sanity tests
3280 on a EC_GROUP, its generator and order. This includes
3281 EC_GROUP_check_discriminant().
3282 [Nils Larsch <nla@trustcenter.de>]
3284 *) Add ECDSA in new directory crypto/ecdsa/.
3286 Add applications 'openssl ecparam' and 'openssl ecdsa'
3287 (these are based on 'openssl dsaparam' and 'openssl dsa').
3289 ECDSA support is also included in various other files across the
3290 library. Most notably,
3291 - 'openssl req' now has a '-newkey ecdsa:file' option;
3292 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3293 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3294 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3295 them suitable for ECDSA where domain parameters must be
3296 extracted before the specific public key;
3297 - ECDSA engine support has been added.
3298 [Nils Larsch <nla@trustcenter.de>]
3300 *) Include some named elliptic curves, and add OIDs from X9.62,
3301 SECG, and WAP/WTLS. Each curve can be obtained from the new
3303 EC_GROUP_new_by_curve_name(),
3304 and the list of available named curves can be obtained with
3305 EC_get_builtin_curves().
3306 Also add a 'curve_name' member to EC_GROUP objects, which can be
3308 EC_GROUP_set_curve_name()
3309 EC_GROUP_get_curve_name()
3310 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3312 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3313 was actually never needed) and in BN_mul(). The removal in BN_mul()
3314 required a small change in bn_mul_part_recursive() and the addition
3315 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3316 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3317 bn_sub_words() and bn_add_words() except they take arrays with
3321 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3323 *) Cleanse PEM buffers before freeing them since they may contain
3325 [Benjamin Bennett <ben@psc.edu>]
3327 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3328 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3329 authentication-only ciphersuites.
3332 *) Since AES128 and AES256 share a single mask bit in the logic of
3333 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3334 kludge to work properly if AES128 is available and AES256 isn't.
3337 *) Expand security boundary to match 1.1.1 module.
3340 *) Remove redundant features: hash file source, editing of test vectors
3341 modify fipsld to use external fips_premain.c signature.
3344 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3345 run algorithm test programs.
3348 *) Make algorithm test programs more tolerant of whitespace.
3351 *) Have SSL/TLS server implementation tolerate "mismatched" record
3352 protocol version while receiving ClientHello even if the
3353 ClientHello is fragmented. (The server can't insist on the
3354 particular protocol version it has chosen before the ServerHello
3355 message has informed the client about his choice.)
3358 *) Load error codes if they are not already present instead of using a
3359 static variable. This allows them to be cleanly unloaded and reloaded.
3362 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3364 *) Introduce limits to prevent malicious keys being able to
3365 cause a denial of service. (CVE-2006-2940)
3366 [Steve Henson, Bodo Moeller]
3368 *) Fix ASN.1 parsing of certain invalid structures that can result
3369 in a denial of service. (CVE-2006-2937) [Steve Henson]
3371 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3372 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3374 *) Fix SSL client code which could crash if connecting to a
3375 malicious SSLv2 server. (CVE-2006-4343)
3376 [Tavis Ormandy and Will Drewry, Google Security Team]
3378 *) Change ciphersuite string processing so that an explicit
3379 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3380 will no longer include "AES128-SHA"), and any other similar
3381 ciphersuite (same bitmap) from *other* protocol versions (so that
3382 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3383 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3384 changes from 0.9.8b and 0.9.8d.
3387 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3389 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3390 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3392 *) Change the Unix randomness entropy gathering to use poll() when
3393 possible instead of select(), since the latter has some
3394 undesirable limitations.
3395 [Darryl Miles via Richard Levitte and Bodo Moeller]
3397 *) Disable rogue ciphersuites:
3399 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3400 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3401 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3403 The latter two were purportedly from
3404 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3407 Also deactive the remaining ciphersuites from
3408 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3409 unofficial, and the ID has long expired.
3412 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3413 dual-core machines) and other potential thread-safety issues.
3416 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3418 *) Adapt fipsld and the build system to link against the validated FIPS
3419 module in FIPS mode.
3422 *) Fixes for VC++ 2005 build under Windows.
3425 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3426 from a Windows bash shell such as MSYS. It is autodetected from the
3427 "config" script when run from a VC++ environment. Modify standard VC++
3428 build to use fipscanister.o from the GNU make build.
3431 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3433 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3434 The value now differs depending on if you build for FIPS or not.
3435 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3436 safely run with a non-FIPSed libcrypto, as it may crash because of
3437 the difference induced by this change.
3440 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3442 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3443 (part of SSL_OP_ALL). This option used to disable the
3444 countermeasure against man-in-the-middle protocol-version
3445 rollback in the SSL 2.0 server implementation, which is a bad
3446 idea. (CVE-2005-2969)
3448 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3449 for Information Security, National Institute of Advanced Industrial
3450 Science and Technology [AIST], Japan)]
3452 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3453 mainly for FIPS compliance and not fully integrated at this stage.
3456 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3457 the exponentiation using a fixed-length exponent. (Otherwise,
3458 the information leaked through timing could expose the secret key
3459 after many signatures; cf. Bleichenbacher's attack on DSA with
3463 *) Make a new fixed-window mod_exp implementation the default for
3464 RSA, DSA, and DH private-key operations so that the sequence of
3465 squares and multiplies and the memory access pattern are
3466 independent of the particular secret key. This will mitigate
3467 cache-timing and potential related attacks.
3469 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3470 and this is automatically used by BN_mod_exp_mont() if the new flag
3471 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3472 will use this BN flag for private exponents unless the flag
3473 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3474 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3476 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3478 *) Change the client implementation for SSLv23_method() and
3479 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3480 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3481 (Previously, the SSL 2.0 backwards compatible Client Hello
3482 message format would be used even with SSL_OP_NO_SSLv2.)
3485 *) Add support for smime-type MIME parameter in S/MIME messages which some
3489 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3490 a threadsafe manner. Modify rsa code to use new function and add calls
3491 to dsa and dh code (which had race conditions before).
3494 *) Include the fixed error library code in the C error file definitions
3495 instead of fixing them up at runtime. This keeps the error code
3496 structures constant.
3499 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3501 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3504 *) Fixes for newer kerberos headers. NB: the casts are needed because
3505 the 'length' field is signed on one version and unsigned on another
3506 with no (?) obvious way to tell the difference, without these VC++
3507 complains. Also the "definition" of FAR (blank) is no longer included
3508 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3509 some needed definitions.
3512 *) Undo Cygwin change.
3515 *) Added support for proxy certificates according to RFC 3820.
3516 Because they may be a security thread to unaware applications,
3517 they must be explicitely allowed in run-time. See
3518 docs/HOWTO/proxy_certificates.txt for further information.
3521 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3523 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3524 server and client random values. Previously
3525 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3526 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3528 This change has negligible security impact because:
3530 1. Server and client random values still have 24 bytes of pseudo random
3533 2. Server and client random values are sent in the clear in the initial
3536 3. The master secret is derived using the premaster secret (48 bytes in
3537 size for static RSA ciphersuites) as well as client server and random
3540 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3543 [Stephen Henson, reported by UK NISCC]
3545 *) Use Windows randomness collection on Cygwin.
3548 *) Fix hang in EGD/PRNGD query when communication socket is closed
3549 prematurely by EGD/PRNGD.
3550 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3552 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3555 *) Back-port of selected performance improvements from development
3556 branch, as well as improved support for PowerPC platforms.
3559 *) Add lots of checks for memory allocation failure, error codes to indicate
3560 failure and freeing up memory if a failure occurs.
3561 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3563 *) Add new -passin argument to dgst.
3566 *) Perform some character comparisons of different types in X509_NAME_cmp:
3567 this is needed for some certificates that reencode DNs into UTF8Strings
3568 (in violation of RFC3280) and can't or wont issue name rollover
3572 *) Make an explicit check during certificate validation to see that
3573 the CA setting in each certificate on the chain is correct. As a
3574 side effect always do the following basic checks on extensions,
3575 not just when there's an associated purpose to the check:
3577 - if there is an unhandled critical extension (unless the user
3578 has chosen to ignore this fault)
3579 - if the path length has been exceeded (if one is set at all)
3580 - that certain extensions fit the associated purpose (if one has
3584 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3586 *) Avoid a race condition when CRLs are checked in a multi threaded
3587 environment. This would happen due to the reordering of the revoked
3588 entries during signature checking and serial number lookup. Now the
3589 encoding is cached and the serial number sort performed under a lock.
3590 Add new STACK function sk_is_sorted().
3593 *) Add Delta CRL to the extension code.
3596 *) Various fixes to s3_pkt.c so alerts are sent properly.
3597 [David Holmes <d.holmes@f5.com>]
3599 *) Reduce the chances of duplicate issuer name and serial numbers (in
3600 violation of RFC3280) using the OpenSSL certificate creation utilities.
3601 This is done by creating a random 64 bit value for the initial serial
3602 number when a serial number file is created or when a self signed
3603 certificate is created using 'openssl req -x509'. The initial serial
3604 number file is created using 'openssl x509 -next_serial' in CA.pl
3605 rather than being initialized to 1.
3608 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3610 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3611 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3612 [Joe Orton, Steve Henson]
3614 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3616 [Joe Orton, Steve Henson]
3618 *) Make it possible to have multiple active certificates with the same
3619 subject in the CA index file. This is done only if the keyword
3620 'unique_subject' is set to 'no' in the main CA section (default
3621 if 'CA_default') of the configuration file. The value is saved
3622 with the database itself in a separate index attribute file,
3623 named like the index file with '.attr' appended to the name.
3626 *) X509 verify fixes. Disable broken certificate workarounds when
3627 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3628 keyUsage extension present. Don't accept CRLs with unhandled critical
3629 extensions: since verify currently doesn't process CRL extensions this
3630 rejects a CRL with *any* critical extensions. Add new verify error codes
3634 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3635 A clarification of RFC2560 will require the use of OCTET STRINGs and
3636 some implementations cannot handle the current raw format. Since OpenSSL
3637 copies and compares OCSP nonces as opaque blobs without any attempt at
3638 parsing them this should not create any compatibility issues.
3641 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3642 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3643 this HMAC (and other) operations are several times slower than OpenSSL
3647 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3648 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3650 *) Use the correct content when signing type "other".
3653 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3655 *) Fix various bugs revealed by running the NISCC test suite:
3657 Stop out of bounds reads in the ASN1 code when presented with
3658 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3660 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3662 If verify callback ignores invalid public key errors don't try to check
3663 certificate signature with the NULL public key.
3667 *) New -ignore_err option in ocsp application to stop the server
3668 exiting on the first error in a request.
3671 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3672 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3676 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3677 extra data after the compression methods not only for TLS 1.0
3678 but also for SSL 3.0 (as required by the specification).
3679 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3681 *) Change X509_certificate_type() to mark the key as exported/exportable
3682 when it's 512 *bits* long, not 512 bytes.
3685 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3686 blocks during encryption.
3689 *) Various fixes to base64 BIO and non blocking I/O. On write
3690 flushes were not handled properly if the BIO retried. On read
3691 data was not being buffered properly and had various logic bugs.
3692 This also affects blocking I/O when the data being decoded is a
3696 *) Various S/MIME bugfixes and compatibility changes:
3697 output correct application/pkcs7 MIME type if
3698 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3699 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3700 of files as .eml work). Correctly handle very long lines in MIME
3704 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3706 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3707 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3708 a protocol version number mismatch like a decryption error
3709 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3712 *) Turn on RSA blinding by default in the default implementation
3713 to avoid a timing attack. Applications that don't want it can call
3714 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3715 They would be ill-advised to do so in most cases.
3716 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3718 *) Change RSA blinding code so that it works when the PRNG is not
3719 seeded (in this case, the secret RSA exponent is abused as
3720 an unpredictable seed -- if it is not unpredictable, there
3721 is no point in blinding anyway). Make RSA blinding thread-safe
3722 by remembering the creator's thread ID in rsa->blinding and
3723 having all other threads use local one-time blinding factors
3724 (this requires more computation than sharing rsa->blinding, but
3725 avoids excessive locking; and if an RSA object is not shared
3726 between threads, blinding will still be very fast).
3729 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3730 ENGINE as defaults for all supported algorithms irrespective of
3731 the 'flags' parameter. 'flags' is now honoured, so applications
3732 should make sure they are passing it correctly.
3735 *) Target "mingw" now allows native Windows code to be generated in
3736 the Cygwin environment as well as with the MinGW compiler.
3739 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3741 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3742 via timing by performing a MAC computation even if incorrrect
3743 block cipher padding has been found. This is a countermeasure
3744 against active attacks where the attacker has to distinguish
3745 between bad padding and a MAC verification error. (CVE-2003-0078)
3747 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3748 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3749 Martin Vuagnoux (EPFL, Ilion)]
3751 *) Make the no-err option work as intended. The intention with no-err
3752 is not to have the whole error stack handling routines removed from
3753 libcrypto, it's only intended to remove all the function name and
3754 reason texts, thereby removing some of the footprint that may not
3755 be interesting if those errors aren't displayed anyway.
3757 NOTE: it's still possible for any application or module to have it's
3758 own set of error texts inserted. The routines are there, just not
3759 used by default when no-err is given.
3762 *) Add support for FreeBSD on IA64.
3763 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3765 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3766 Kerberos function mit_des_cbc_cksum(). Before this change,
3767 the value returned by DES_cbc_cksum() was like the one from
3768 mit_des_cbc_cksum(), except the bytes were swapped.
3769 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3771 *) Allow an application to disable the automatic SSL chain building.
3772 Before this a rather primitive chain build was always performed in
3773 ssl3_output_cert_chain(): an application had no way to send the
3774 correct chain if the automatic operation produced an incorrect result.
3776 Now the chain builder is disabled if either:
3778 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3780 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3782 The reasoning behind this is that an application would not want the
3783 auto chain building to take place if extra chain certificates are
3784 present and it might also want a means of sending no additional
3785 certificates (for example the chain has two certificates and the
3789 *) Add the possibility to build without the ENGINE framework.
3790 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3792 *) Under Win32 gmtime() can return NULL: check return value in
3793 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3796 *) DSA routines: under certain error conditions uninitialized BN objects
3797 could be freed. Solution: make sure initialization is performed early
3798 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3799 Nils Larsch <nla@trustcenter.de> via PR#459)
3802 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3803 checked on reconnect on the client side, therefore session resumption
3804 could still fail with a "ssl session id is different" error. This
3805 behaviour is masked when SSL_OP_ALL is used due to
3806 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3807 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3808 followup to PR #377.
3811 *) IA-32 assembler support enhancements: unified ELF targets, support
3812 for SCO/Caldera platforms, fix for Cygwin shared build.
3815 *) Add support for FreeBSD on sparc64. As a consequence, support for
3816 FreeBSD on non-x86 processors is separate from x86 processors on
3817 the config script, much like the NetBSD support.
3818 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3820 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3822 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3825 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3826 code (06) was taken as the first octet of the session ID and the last
3827 octet was ignored consequently. As a result SSLv2 client side session
3828 caching could not have worked due to the session ID mismatch between
3830 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3834 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3835 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3839 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3840 seems that in spite of existing for more than a year, many application
3841 author have done nothing to provide the necessary callbacks, which
3842 means that this particular engine will not work properly anywhere.
3843 This is a very unfortunate situation which forces us, in the name
3844 of usability, to give the hw_ncipher.c a static lock, which is part
3846 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3847 appear in 0.9.8 or later. We EXPECT application authors to have
3848 dealt properly with this when 0.9.8 is released (unless we actually
3849 make such changes in the libcrypto locking code that changes will
3850 have to be made anyway).
3853 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3854 octets have been read, EOF or an error occurs. Without this change
3855 some truncated ASN1 structures will not produce an error.
3858 *) Disable Heimdal support, since it hasn't been fully implemented.
3859 Still give the possibility to force the use of Heimdal, but with
3860 warnings and a request that patches get sent to openssl-dev.
3863 *) Add the VC-CE target, introduce the WINCE sysname, and add
3864 INSTALL.WCE and appropriate conditionals to make it build.
3865 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3867 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3868 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3869 edit numbers of the version.
3870 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3872 *) Introduce safe string copy and catenation functions
3873 (BUF_strlcpy() and BUF_strlcat()).
3874 [Ben Laurie (CHATS) and Richard Levitte]
3876 *) Avoid using fixed-size buffers for one-line DNs.
3877 [Ben Laurie (CHATS)]
3879 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3880 resizing buffers containing secrets, and use where appropriate.
3881 [Ben Laurie (CHATS)]
3883 *) Avoid using fixed size buffers for configuration file location.
3884 [Ben Laurie (CHATS)]
3886 *) Avoid filename truncation for various CA files.
3887 [Ben Laurie (CHATS)]
3889 *) Use sizeof in preference to magic numbers.
3890 [Ben Laurie (CHATS)]
3892 *) Avoid filename truncation in cert requests.
3893 [Ben Laurie (CHATS)]
3895 *) Add assertions to check for (supposedly impossible) buffer
3897 [Ben Laurie (CHATS)]
3899 *) Don't cache truncated DNS entries in the local cache (this could
3900 potentially lead to a spoofing attack).
3901 [Ben Laurie (CHATS)]
3903 *) Fix various buffers to be large enough for hex/decimal
3904 representations in a platform independent manner.
3905 [Ben Laurie (CHATS)]
3907 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3908 resizing buffers containing secrets, and use where appropriate.
3909 [Ben Laurie (CHATS)]
3911 *) Add BIO_indent() to avoid much slightly worrying code to do
3913 [Ben Laurie (CHATS)]
3915 *) Convert sprintf()/BIO_puts() to BIO_printf().
3916 [Ben Laurie (CHATS)]
3918 *) buffer_gets() could terminate with the buffer only half
3920 [Ben Laurie (CHATS)]
3922 *) Add assertions to prevent user-supplied crypto functions from
3923 overflowing internal buffers by having large block sizes, etc.
3924 [Ben Laurie (CHATS)]
3926 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3928 [Ben Laurie (CHATS)]
3930 *) Eliminate unused copy of key in RC4.
3931 [Ben Laurie (CHATS)]
3933 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3934 [Ben Laurie (CHATS)]
3936 *) Fix off-by-one error in EGD path.
3937 [Ben Laurie (CHATS)]
3939 *) If RANDFILE path is too long, ignore instead of truncating.
3940 [Ben Laurie (CHATS)]
3942 *) Eliminate unused and incorrectly sized X.509 structure
3944 [Ben Laurie (CHATS)]
3946 *) Eliminate unused and dangerous function knumber().
3947 [Ben Laurie (CHATS)]
3949 *) Eliminate unused and dangerous structure, KSSL_ERR.
3950 [Ben Laurie (CHATS)]
3952 *) Protect against overlong session ID context length in an encoded
3953 session object. Since these are local, this does not appear to be
3955 [Ben Laurie (CHATS)]
3957 *) Change from security patch (see 0.9.6e below) that did not affect
3958 the 0.9.6 release series:
3960 Remote buffer overflow in SSL3 protocol - an attacker could
3961 supply an oversized master key in Kerberos-enabled versions.
3963 [Ben Laurie (CHATS)]
3965 *) Change the SSL kerb5 codes to match RFC 2712.
3968 *) Make -nameopt work fully for req and add -reqopt switch.
3969 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3971 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3972 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3974 *) Make sure tests can be performed even if the corresponding algorithms
3975 have been removed entirely. This was also the last step to make
3976 OpenSSL compilable with DJGPP under all reasonable conditions.
3977 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3979 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3980 to allow version independent disabling of normally unselected ciphers,
3981 which may be activated as a side-effect of selecting a single cipher.
3983 (E.g., cipher list string "RSA" enables ciphersuites that are left
3984 out of "ALL" because they do not provide symmetric encryption.
3985 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3986 [Lutz Jaenicke, Bodo Moeller]
3988 *) Add appropriate support for separate platform-dependent build
3989 directories. The recommended way to make a platform-dependent
3990 build directory is the following (tested on Linux), maybe with
3993 # Place yourself outside of the OpenSSL source tree. In
3994 # this example, the environment variable OPENSSL_SOURCE
3995 # is assumed to contain the absolute OpenSSL source directory.
3996 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3997 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3998 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3999 mkdir -p `dirname $F`
4000 ln -s $OPENSSL_SOURCE/$F $F
4003 To be absolutely sure not to disturb the source tree, a "make clean"
4004 is a good thing. If it isn't successfull, don't worry about it,
4005 it probably means the source directory is very clean.
4008 *) Make sure any ENGINE control commands make local copies of string
4009 pointers passed to them whenever necessary. Otherwise it is possible
4010 the caller may have overwritten (or deallocated) the original string
4011 data when a later ENGINE operation tries to use the stored values.
4012 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4014 *) Improve diagnostics in file reading and command-line digests.
4015 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4017 *) Add AES modes CFB and OFB to the object database. Correct an
4018 error in AES-CFB decryption.
4021 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4022 allows existing EVP_CIPHER_CTX structures to be reused after
4023 calling EVP_*Final(). This behaviour is used by encryption
4024 BIOs and some applications. This has the side effect that
4025 applications must explicitly clean up cipher contexts with
4026 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4029 *) Check the values of dna and dnb in bn_mul_recursive before calling
4030 bn_mul_comba (a non zero value means the a or b arrays do not contain
4031 n2 elements) and fallback to bn_mul_normal if either is not zero.
4034 *) Fix escaping of non-ASCII characters when using the -subj option
4035 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4038 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4039 form for "surname", serialNumber has no short form.
4040 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4041 therefore remove "mail" short name for "internet 7".
4042 The OID for unique identifiers in X509 certificates is
4043 x500UniqueIdentifier, not uniqueIdentifier.
4044 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4047 *) Add an "init" command to the ENGINE config module and auto initialize
4048 ENGINEs. Without any "init" command the ENGINE will be initialized
4049 after all ctrl commands have been executed on it. If init=1 the
4050 ENGINE is initailized at that point (ctrls before that point are run
4051 on the uninitialized ENGINE and after on the initialized one). If
4052 init=0 then the ENGINE will not be iniatialized at all.
4055 *) Fix the 'app_verify_callback' interface so that the user-defined
4056 argument is actually passed to the callback: In the
4057 SSL_CTX_set_cert_verify_callback() prototype, the callback
4058 declaration has been changed from
4061 int (*cb)(X509_STORE_CTX *,void *);
4062 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4063 i=s->ctx->app_verify_callback(&ctx)
4064 has been changed into
4065 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4067 To update applications using SSL_CTX_set_cert_verify_callback(),
4068 a dummy argument can be added to their callback functions.
4069 [D. K. Smetters <smetters@parc.xerox.com>]
4071 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4072 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4074 *) Add and OPENSSL_LOAD_CONF define which will cause
4075 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4076 This allows older applications to transparently support certain
4077 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4078 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4079 load the config file and OPENSSL_add_all_algorithms_conf() which will
4080 always load it have also been added.
4083 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4084 Adjust NIDs and EVP layer.
4085 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4087 *) Config modules support in openssl utility.
4089 Most commands now load modules from the config file,
4090 though in a few (such as version) this isn't done
4091 because it couldn't be used for anything.
4093 In the case of ca and req the config file used is
4094 the same as the utility itself: that is the -config
4095 command line option can be used to specify an
4099 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4100 use "openssl_conf" if filename is NULL use default openssl config file.
4103 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4104 config section name. Add a new flag to tolerate a missing config file
4105 and move code to CONF_modules_load_file().
4108 *) Support for crypto accelerator cards from Accelerated Encryption
4109 Processing, www.aep.ie. (Use engine 'aep')
4110 The support was copied from 0.9.6c [engine] and adapted/corrected
4111 to work with the new engine framework.
4112 [AEP Inc. and Richard Levitte]
4114 *) Support for SureWare crypto accelerator cards from Baltimore
4115 Technologies. (Use engine 'sureware')
4116 The support was copied from 0.9.6c [engine] and adapted
4117 to work with the new engine framework.
4120 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4121 make the newer ENGINE framework commands for the CHIL engine work.
4122 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4124 *) Make it possible to produce shared libraries on ReliantUNIX.
4125 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4127 *) Add the configuration target debug-linux-ppro.
4128 Make 'openssl rsa' use the general key loading routines
4129 implemented in apps.c, and make those routines able to
4130 handle the key format FORMAT_NETSCAPE and the variant
4132 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4134 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4135 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4137 *) Add -keyform to rsautl, and document -engine.
4138 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4140 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4141 BIO_R_NO_SUCH_FILE error code rather than the generic
4142 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4145 *) Add new functions
4147 ERR_peek_last_error_line
4148 ERR_peek_last_error_line_data.
4149 These are similar to
4152 ERR_peek_error_line_data,
4153 but report on the latest error recorded rather than the first one
4154 still in the error queue.
4155 [Ben Laurie, Bodo Moeller]
4157 *) default_algorithms option in ENGINE config module. This allows things
4159 default_algorithms = ALL
4160 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4163 *) Prelminary ENGINE config module.
4166 *) New experimental application configuration code.
4169 *) Change the AES code to follow the same name structure as all other
4170 symmetric ciphers, and behave the same way. Move everything to
4171 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4172 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4174 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4175 [Ben Laurie and Theo de Raadt]
4177 *) Add option to output public keys in req command.
4178 [Massimiliano Pala madwolf@openca.org]
4180 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4181 (up to about 10% better than before for P-192 and P-224).
4184 *) New functions/macros
4186 SSL_CTX_set_msg_callback(ctx, cb)
4187 SSL_CTX_set_msg_callback_arg(ctx, arg)
4188 SSL_set_msg_callback(ssl, cb)
4189 SSL_set_msg_callback_arg(ssl, arg)
4191 to request calling a callback function
4193 void cb(int write_p, int version, int content_type,
4194 const void *buf, size_t len, SSL *ssl, void *arg)
4196 whenever a protocol message has been completely received
4197 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4198 protocol version according to which the SSL library interprets
4199 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4200 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4201 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4202 specification (change_cipher_spec(20), alert(21), handshake(22)).
4203 'buf' and 'len' point to the actual message, 'ssl' to the
4204 SSL object, and 'arg' is the application-defined value set by
4205 SSL[_CTX]_set_msg_callback_arg().
4207 'openssl s_client' and 'openssl s_server' have new '-msg' options
4208 to enable a callback that displays all protocol messages.
4211 *) Change the shared library support so shared libraries are built as
4212 soon as the corresponding static library is finished, and thereby get
4213 openssl and the test programs linked against the shared library.
4214 This still only happens when the keyword "shard" has been given to
4215 the configuration scripts.
4217 NOTE: shared library support is still an experimental thing, and
4218 backward binary compatibility is still not guaranteed.
4219 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4221 *) Add support for Subject Information Access extension.
4222 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4224 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4225 additional bytes when new memory had to be allocated, not just
4226 when reusing an existing buffer.
4229 *) New command line and configuration option 'utf8' for the req command.
4230 This allows field values to be specified as UTF8 strings.
4233 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4234 runs for the former and machine-readable output for the latter.
4237 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4238 of the e-mail address in the DN (i.e., it will go into a certificate
4239 extension only). The new configuration file option 'email_in_dn = no'
4240 has the same effect.
4241 [Massimiliano Pala madwolf@openca.org]
4243 *) Change all functions with names starting with des_ to be starting
4244 with DES_ instead. Add wrappers that are compatible with libdes,
4245 but are named _ossl_old_des_*. Finally, add macros that map the
4246 des_* symbols to the corresponding _ossl_old_des_* if libdes
4247 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4248 desired, the des_* symbols will be mapped to DES_*, with one
4251 Since we provide two compatibility mappings, the user needs to
4252 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4253 compatibility is desired. The default (i.e., when that macro
4254 isn't defined) is OpenSSL 0.9.6c compatibility.
4256 There are also macros that enable and disable the support of old
4257 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4258 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4259 are defined, the default will apply: to support the old des routines.
4261 In either case, one must include openssl/des.h to get the correct
4262 definitions. Do not try to just include openssl/des_old.h, that
4265 NOTE: This is a major break of an old API into a new one. Software
4266 authors are encouraged to switch to the DES_ style functions. Some
4267 time in the future, des_old.h and the libdes compatibility functions
4268 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4269 default), and then completely removed.
4272 *) Test for certificates which contain unsupported critical extensions.
4273 If such a certificate is found during a verify operation it is
4274 rejected by default: this behaviour can be overridden by either
4275 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4276 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4277 X509_supported_extension() has also been added which returns 1 if a
4278 particular extension is supported.
4281 *) Modify the behaviour of EVP cipher functions in similar way to digests
4282 to retain compatibility with existing code.
4285 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4286 compatibility with existing code. In particular the 'ctx' parameter does
4287 not have to be to be initialized before the call to EVP_DigestInit() and
4288 it is tidied up after a call to EVP_DigestFinal(). New function
4289 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4290 EVP_MD_CTX_copy() changed to not require the destination to be
4291 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4292 requires the destination to be valid.
4294 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4295 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4298 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4299 so that complete 'Handshake' protocol structures are kept in memory
4300 instead of overwriting 'msg_type' and 'length' with 'body' data.
4303 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4304 [Massimo Santin via Richard Levitte]
4306 *) Major restructuring to the underlying ENGINE code. This includes
4307 reduction of linker bloat, separation of pure "ENGINE" manipulation
4308 (initialisation, etc) from functionality dealing with implementations
4309 of specific crypto iterfaces. This change also introduces integrated
4310 support for symmetric ciphers and digest implementations - so ENGINEs
4311 can now accelerate these by providing EVP_CIPHER and EVP_MD
4312 implementations of their own. This is detailed in crypto/engine/README
4313 as it couldn't be adequately described here. However, there are a few
4314 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4315 were changed in the original introduction of ENGINE code have now
4316 reverted back - the hooking from this code to ENGINE is now a good
4317 deal more passive and at run-time, operations deal directly with
4318 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4319 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4320 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4321 they were not being used by the framework as there is no concept of a
4322 BIGNUM_METHOD and they could not be generalised to the new
4323 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4324 ENGINE_cpy() has been removed as it cannot be consistently defined in
4328 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4331 *) Change mkdef.pl to sort symbols that get the same entry number,
4332 and make sure the automatically generated functions ERR_load_*
4333 become part of libeay.num as well.
4336 *) New function SSL_renegotiate_pending(). This returns true once
4337 renegotiation has been requested (either SSL_renegotiate() call
4338 or HelloRequest/ClientHello receveived from the peer) and becomes
4339 false once a handshake has been completed.
4340 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4341 sends a HelloRequest, but does not ensure that a handshake takes
4342 place. SSL_renegotiate_pending() is useful for checking if the
4343 client has followed the request.)
4346 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4347 By default, clients may request session resumption even during
4348 renegotiation (if session ID contexts permit); with this option,
4349 session resumption is possible only in the first handshake.
4351 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4352 more bits available for options that should not be part of
4353 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4356 *) Add some demos for certificate and certificate request creation.
4359 *) Make maximum certificate chain size accepted from the peer application
4360 settable (SSL*_get/set_max_cert_list()), as proposed by
4361 "Douglas E. Engert" <deengert@anl.gov>.
4364 *) Add support for shared libraries for Unixware-7
4365 (Boyd Lynn Gerber <gerberb@zenez.com>).
4368 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4369 be done prior to destruction. Use this to unload error strings from
4370 ENGINEs that load their own error strings. NB: This adds two new API
4371 functions to "get" and "set" this destroy handler in an ENGINE.
4374 *) Alter all existing ENGINE implementations (except "openssl" and
4375 "openbsd") to dynamically instantiate their own error strings. This
4376 makes them more flexible to be built both as statically-linked ENGINEs
4377 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4378 Also, add stub code to each that makes building them as self-contained
4379 shared-libraries easier (see README.ENGINE).
4382 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4383 implementations into applications that are completely implemented in
4384 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4385 commands that can be used to configure what shared-library to load and
4386 to control aspects of the way it is handled. Also, made an update to
4387 the README.ENGINE file that brings its information up-to-date and
4388 provides some information and instructions on the "dynamic" ENGINE
4389 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4392 *) Make it possible to unload ranges of ERR strings with a new
4393 "ERR_unload_strings" function.
4396 *) Add a copy() function to EVP_MD.
4399 *) Make EVP_MD routines take a context pointer instead of just the
4400 md_data void pointer.
4403 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4404 that the digest can only process a single chunk of data
4405 (typically because it is provided by a piece of
4406 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4407 is only going to provide a single chunk of data, and hence the
4408 framework needn't accumulate the data for oneshot drivers.
4411 *) As with "ERR", make it possible to replace the underlying "ex_data"
4412 functions. This change also alters the storage and management of global
4413 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4414 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4415 index counters. The API functions that use this state have been changed
4416 to take a "class_index" rather than pointers to the class's local STACK
4417 and counter, and there is now an API function to dynamically create new
4418 classes. This centralisation allows us to (a) plug a lot of the
4419 thread-safety problems that existed, and (b) makes it possible to clean
4420 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4421 such data would previously have always leaked in application code and
4422 workarounds were in place to make the memory debugging turn a blind eye
4423 to it. Application code that doesn't use this new function will still
4424 leak as before, but their memory debugging output will announce it now
4425 rather than letting it slide.
4427 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4428 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4429 has a return value to indicate success or failure.
4432 *) Make it possible to replace the underlying "ERR" functions such that the
4433 global state (2 LHASH tables and 2 locks) is only used by the "default"
4434 implementation. This change also adds two functions to "get" and "set"
4435 the implementation prior to it being automatically set the first time
4436 any other ERR function takes place. Ie. an application can call "get",
4437 pass the return value to a module it has just loaded, and that module
4438 can call its own "set" function using that value. This means the
4439 module's "ERR" operations will use (and modify) the error state in the
4440 application and not in its own statically linked copy of OpenSSL code.
4443 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4444 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4445 the operation, and provides a more encapsulated way for external code
4446 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4447 to use these functions rather than manually incrementing the counts.
4449 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4452 *) Add EVP test program.
4455 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4458 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4459 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4460 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4461 These allow a CRL to be built without having to access X509_CRL fields
4462 directly. Modify 'ca' application to use new functions.
4465 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4466 bug workarounds. Rollback attack detection is a security feature.
4467 The problem will only arise on OpenSSL servers when TLSv1 is not
4468 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4469 Software authors not wanting to support TLSv1 will have special reasons
4470 for their choice and can explicitly enable this option.
4471 [Bodo Moeller, Lutz Jaenicke]
4473 *) Rationalise EVP so it can be extended: don't include a union of
4474 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4475 (similar to those existing for EVP_CIPHER_CTX).
4480 EVP_MD_CTX_init(&md); /* new function call */
4481 EVP_DigestInit(&md, EVP_sha1());
4482 EVP_DigestUpdate(&md, in, len);
4483 EVP_DigestFinal(&md, out, NULL);
4484 EVP_MD_CTX_cleanup(&md); /* new function call */
4488 *) Make DES key schedule conform to the usual scheme, as well as
4489 correcting its structure. This means that calls to DES functions
4490 now have to pass a pointer to a des_key_schedule instead of a
4491 plain des_key_schedule (which was actually always a pointer
4494 des_key_schedule ks;
4496 des_set_key_checked(..., &ks);
4497 des_ncbc_encrypt(..., &ks, ...);
4499 (Note that a later change renames 'des_...' into 'DES_...'.)
4502 *) Initial reduction of linker bloat: the use of some functions, such as
4503 PEM causes large amounts of unused functions to be linked in due to
4504 poor organisation. For example pem_all.c contains every PEM function
4505 which has a knock on effect of linking in large amounts of (unused)
4506 ASN1 code. Grouping together similar functions and splitting unrelated
4507 functions prevents this.
4510 *) Cleanup of EVP macros.
4513 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4514 correct _ecb suffix.
4517 *) Add initial OCSP responder support to ocsp application. The
4518 revocation information is handled using the text based index
4519 use by the ca application. The responder can either handle
4520 requests generated internally, supplied in files (for example
4521 via a CGI script) or using an internal minimal server.
4524 *) Add configuration choices to get zlib compression for TLS.
4527 *) Changes to Kerberos SSL for RFC 2712 compliance:
4528 1. Implemented real KerberosWrapper, instead of just using
4529 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4530 2. Implemented optional authenticator field of KerberosWrapper.
4532 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4533 and authenticator structs; see crypto/krb5/.
4535 Generalized Kerberos calls to support multiple Kerberos libraries.
4536 [Vern Staats <staatsvr@asc.hpc.mil>,
4537 Jeffrey Altman <jaltman@columbia.edu>
4538 via Richard Levitte]
4540 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4541 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4542 values for each of the key sizes rather than having just
4543 parameters (and 'speed' generating keys each time).
4546 *) Speed up EVP routines.
4549 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4550 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4551 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4552 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4554 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4555 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4556 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4559 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4561 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4564 *) Added the OS2-EMX target.
4565 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4567 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4568 to support NCONF routines in extension code. New function CONF_set_nconf()
4569 to allow functions which take an NCONF to also handle the old LHASH
4570 structure: this means that the old CONF compatible routines can be
4571 retained (in particular wrt extensions) without having to duplicate the
4572 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4575 *) Enhance the general user interface with mechanisms for inner control
4576 and with possibilities to have yes/no kind of prompts.
4579 *) Change all calls to low level digest routines in the library and
4580 applications to use EVP. Add missing calls to HMAC_cleanup() and
4581 don't assume HMAC_CTX can be copied using memcpy().
4582 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4584 *) Add the possibility to control engines through control names but with
4585 arbitrary arguments instead of just a string.
4586 Change the key loaders to take a UI_METHOD instead of a callback
4587 function pointer. NOTE: this breaks binary compatibility with earlier
4588 versions of OpenSSL [engine].
4589 Adapt the nCipher code for these new conditions and add a card insertion
4593 *) Enhance the general user interface with mechanisms to better support
4594 dialog box interfaces, application-defined prompts, the possibility
4595 to use defaults (for example default passwords from somewhere else)
4596 and interrupts/cancellations.
4599 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4600 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4603 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4604 tidy up some unnecessarily weird code in 'sk_new()').
4605 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4607 *) Change the key loading routines for ENGINEs to use the same kind
4608 callback (pem_password_cb) as all other routines that need this
4612 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4613 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4614 than this minimum value is recommended.
4617 *) New random seeder for OpenVMS, using the system process statistics
4618 that are easily reachable.
4621 *) Windows apparently can't transparently handle global
4622 variables defined in DLLs. Initialisations such as:
4624 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4626 wont compile. This is used by the any applications that need to
4627 declare their own ASN1 modules. This was fixed by adding the option
4628 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4629 needed for static libraries under Win32.
4632 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4633 setting of purpose and trust fields. New X509_STORE trust and
4634 purpose functions and tidy up setting in other SSL functions.
4637 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4638 structure. These are inherited by X509_STORE_CTX when it is
4639 initialised. This allows various defaults to be set in the
4640 X509_STORE structure (such as flags for CRL checking and custom
4641 purpose or trust settings) for functions which only use X509_STORE_CTX
4642 internally such as S/MIME.
4644 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4645 trust settings if they are not set in X509_STORE. This allows X509_STORE
4646 purposes and trust (in S/MIME for example) to override any set by default.
4648 Add command line options for CRL checking to smime, s_client and s_server
4652 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4653 are set then the CRL is looked up in the X509_STORE structure and
4654 its validity and signature checked, then if the certificate is found
4655 in the CRL the verify fails with a revoked error.
4657 Various new CRL related callbacks added to X509_STORE_CTX structure.
4659 Command line options added to 'verify' application to support this.
4661 This needs some additional work, such as being able to handle multiple
4662 CRLs with different times, extension based lookup (rather than just
4663 by subject name) and ultimately more complete V2 CRL extension
4667 *) Add a general user interface API (crypto/ui/). This is designed
4668 to replace things like des_read_password and friends (backward
4669 compatibility functions using this new API are provided).
4670 The purpose is to remove prompting functions from the DES code
4671 section as well as provide for prompting through dialog boxes in
4672 a window system and the like.
4675 *) Add "ex_data" support to ENGINE so implementations can add state at a
4676 per-structure level rather than having to store it globally.
4679 *) Make it possible for ENGINE structures to be copied when retrieved by
4680 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4681 This causes the "original" ENGINE structure to act like a template,
4682 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4683 operational state can be localised to each ENGINE structure, despite the
4684 fact they all share the same "methods". New ENGINE structures returned in
4685 this case have no functional references and the return value is the single
4686 structural reference. This matches the single structural reference returned
4687 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4691 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4692 needs to match any other type at all we need to manually clear the
4696 *) Changes to the "openssl engine" utility to include;
4697 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4698 about an ENGINE's available control commands.
4699 - executing control commands from command line arguments using the
4700 '-pre' and '-post' switches. '-post' is only used if '-t' is
4701 specified and the ENGINE is successfully initialised. The syntax for
4702 the individual commands are colon-separated, for example;
4703 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4706 *) New dynamic control command support for ENGINEs. ENGINEs can now
4707 declare their own commands (numbers), names (strings), descriptions,
4708 and input types for run-time discovery by calling applications. A
4709 subset of these commands are implicitly classed as "executable"
4710 depending on their input type, and only these can be invoked through
4711 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4712 can be based on user input, config files, etc). The distinction is
4713 that "executable" commands cannot return anything other than a boolean
4714 result and can only support numeric or string input, whereas some
4715 discoverable commands may only be for direct use through
4716 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4717 pointers, or other custom uses. The "executable" commands are to
4718 support parameterisations of ENGINE behaviour that can be
4719 unambiguously defined by ENGINEs and used consistently across any
4720 OpenSSL-based application. Commands have been added to all the
4721 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4722 control over shared-library paths without source code alterations.
4725 *) Changed all ENGINE implementations to dynamically allocate their
4726 ENGINEs rather than declaring them statically. Apart from this being
4727 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4728 this also allows the implementations to compile without using the
4729 internal engine_int.h header.
4732 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4733 'const' value. Any code that should be able to modify a RAND_METHOD
4734 should already have non-const pointers to it (ie. they should only
4735 modify their own ones).
4738 *) Made a variety of little tweaks to the ENGINE code.
4739 - "atalla" and "ubsec" string definitions were moved from header files
4740 to C code. "nuron" string definitions were placed in variables
4741 rather than hard-coded - allowing parameterisation of these values
4742 later on via ctrl() commands.
4743 - Removed unused "#if 0"'d code.
4744 - Fixed engine list iteration code so it uses ENGINE_free() to release
4745 structural references.
4746 - Constified the RAND_METHOD element of ENGINE structures.
4747 - Constified various get/set functions as appropriate and added
4748 missing functions (including a catch-all ENGINE_cpy that duplicates
4749 all ENGINE values onto a new ENGINE except reference counts/state).
4750 - Removed NULL parameter checks in get/set functions. Setting a method
4751 or function to NULL is a way of cancelling out a previously set
4752 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4753 and doesn't justify the extra error symbols and code.
4754 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4755 flags from engine_int.h to engine.h.
4756 - Changed prototypes for ENGINE handler functions (init(), finish(),
4757 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4760 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4761 to the algorithm using long division. The binary algorithm can be
4762 used only if the modulus is odd. On 32-bit systems, it is faster
4763 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4764 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4765 up to 450 bits. In 64-bit environments, the binary algorithm
4766 appears to be advantageous for much longer moduli; here we use it
4767 for moduli up to 2048 bits.
4770 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4771 could not support the combine flag in choice fields.
4774 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4775 extensions from a certificate request to the certificate.
4778 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4779 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4780 file: this allows the display of the certificate about to be
4781 signed to be customised, to allow certain fields to be included
4782 or excluded and extension details. The old system didn't display
4783 multicharacter strings properly, omitted fields not in the policy
4784 and couldn't display additional details such as extensions.
4787 *) Function EC_POINTs_mul for multiple scalar multiplication
4788 of an arbitrary number of elliptic curve points
4789 \sum scalars[i]*points[i],
4790 optionally including the generator defined for the EC_GROUP:
4791 scalar*generator + \sum scalars[i]*points[i].
4793 EC_POINT_mul is a simple wrapper function for the typical case
4794 that the point list has just one item (besides the optional
4798 *) First EC_METHODs for curves over GF(p):
4800 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4801 operations and provides various method functions that can also
4802 operate with faster implementations of modular arithmetic.
4804 EC_GFp_mont_method() reuses most functions that are part of
4805 EC_GFp_simple_method, but uses Montgomery arithmetic.
4807 [Bodo Moeller; point addition and point doubling
4808 implementation directly derived from source code provided by
4809 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4811 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4812 crypto/ec/ec_lib.c):
4814 Curves are EC_GROUP objects (with an optional group generator)
4815 based on EC_METHODs that are built into the library.
4817 Points are EC_POINT objects based on EC_GROUP objects.
4819 Most of the framework would be able to handle curves over arbitrary
4820 finite fields, but as there are no obvious types for fields other
4821 than GF(p), some functions are limited to that for now.
4824 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4825 that the file contains a complete HTTP response.
4828 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4829 change the def and num file printf format specifier from "%-40sXXX"
4830 to "%-39s XXX". The latter will always guarantee a space after the
4831 field while the former will cause them to run together if the field
4832 is 40 of more characters long.
4835 *) Constify the cipher and digest 'method' functions and structures
4836 and modify related functions to take constant EVP_MD and EVP_CIPHER
4840 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4841 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4844 *) Modify EVP_Digest*() routines so they now return values. Although the
4845 internal software routines can never fail additional hardware versions
4849 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4851 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4852 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4855 ERR_R_NESTED_ASN1_ERROR
4857 ERR_R_MISSING_ASN1_EOS
4858 were 4 .. 9, conflicting with
4859 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4861 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4862 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4864 Add new error code 'ERR_R_INTERNAL_ERROR'.
4867 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4871 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4872 sets the subject name for a new request or supersedes the
4873 subject name in a given request. Formats that can be parsed are
4874 'CN=Some Name, OU=myOU, C=IT'
4876 'CN=Some Name/OU=myOU/C=IT'.
4878 Add options '-batch' and '-verbose' to 'openssl req'.
4879 [Massimiliano Pala <madwolf@hackmasters.net>]
4881 *) Introduce the possibility to access global variables through
4882 functions on platform were that's the best way to handle exporting
4883 global variables in shared libraries. To enable this functionality,
4884 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4885 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4886 is normally done by Configure or something similar).
4888 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4889 in the source file (foo.c) like this:
4891 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4892 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4894 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4895 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4897 OPENSSL_DECLARE_GLOBAL(int,foo);
4898 #define foo OPENSSL_GLOBAL_REF(foo)
4899 OPENSSL_DECLARE_GLOBAL(double,bar);
4900 #define bar OPENSSL_GLOBAL_REF(bar)
4902 The #defines are very important, and therefore so is including the
4903 header file everywhere where the defined globals are used.
4905 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4906 of ASN.1 items, but that structure is a bit different.
4908 The largest change is in util/mkdef.pl which has been enhanced with
4909 better and easier to understand logic to choose which symbols should
4910 go into the Windows .def files as well as a number of fixes and code
4911 cleanup (among others, algorithm keywords are now sorted
4912 lexicographically to avoid constant rewrites).
4915 *) In BN_div() keep a copy of the sign of 'num' before writing the
4916 result to 'rm' because if rm==num the value will be overwritten
4917 and produce the wrong result if 'num' is negative: this caused
4918 problems with BN_mod() and BN_nnmod().
4921 *) Function OCSP_request_verify(). This checks the signature on an
4922 OCSP request and verifies the signer certificate. The signer
4923 certificate is just checked for a generic purpose and OCSP request
4927 *) Add OCSP_check_validity() function to check the validity of OCSP
4928 responses. OCSP responses are prepared in real time and may only
4929 be a few seconds old. Simply checking that the current time lies
4930 between thisUpdate and nextUpdate max reject otherwise valid responses
4931 caused by either OCSP responder or client clock inaccuracy. Instead
4932 we allow thisUpdate and nextUpdate to fall within a certain period of
4933 the current time. The age of the response can also optionally be
4934 checked. Two new options -validity_period and -status_age added to
4938 *) If signature or public key algorithm is unrecognized print out its
4939 OID rather that just UNKNOWN.
4942 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4943 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4944 ID to be generated from the issuer certificate alone which can then be
4945 passed to OCSP_id_issuer_cmp().
4948 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4949 ASN1 modules to export functions returning ASN1_ITEM pointers
4950 instead of the ASN1_ITEM structures themselves. This adds several
4951 new macros which allow the underlying ASN1 function/structure to
4952 be accessed transparently. As a result code should not use ASN1_ITEM
4953 references directly (such as &X509_it) but instead use the relevant
4954 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4955 use of the new ASN1 code on platforms where exporting structures
4956 is problematical (for example in shared libraries) but exporting
4957 functions returning pointers to structures is not.
4960 *) Add support for overriding the generation of SSL/TLS session IDs.
4961 These callbacks can be registered either in an SSL_CTX or per SSL.
4962 The purpose of this is to allow applications to control, if they wish,
4963 the arbitrary values chosen for use as session IDs, particularly as it
4964 can be useful for session caching in multiple-server environments. A
4965 command-line switch for testing this (and any client code that wishes
4966 to use such a feature) has been added to "s_server".
4967 [Geoff Thorpe, Lutz Jaenicke]
4969 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4970 of the form '#if defined(...) || defined(...) || ...' and
4971 '#if !defined(...) && !defined(...) && ...'. This also avoids
4972 the growing number of special cases it was previously handling.
4975 *) Make all configuration macros available for application by making
4976 sure they are available in opensslconf.h, by giving them names starting
4977 with "OPENSSL_" to avoid conflicts with other packages and by making
4978 sure e_os2.h will cover all platform-specific cases together with
4980 Additionally, it is now possible to define configuration/platform-
4981 specific names (called "system identities"). In the C code, these
4982 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4983 macro with the name beginning with "OPENSSL_SYS_", which is determined
4984 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4988 *) New option -set_serial to 'req' and 'x509' this allows the serial
4989 number to use to be specified on the command line. Previously self
4990 signed certificates were hard coded with serial number 0 and the
4991 CA options of 'x509' had to use a serial number in a file which was
4995 *) New options to 'ca' utility to support V2 CRL entry extensions.
4996 Currently CRL reason, invalidity date and hold instruction are
4997 supported. Add new CRL extensions to V3 code and some new objects.
5000 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5001 disable standard block padding (aka PKCS#5 padding) in the EVP
5002 API, which was previously mandatory. This means that the data is
5003 not padded in any way and so the total length much be a multiple
5004 of the block size, otherwise an error occurs.
5007 *) Initial (incomplete) OCSP SSL support.
5010 *) New function OCSP_parse_url(). This splits up a URL into its host,
5011 port and path components: primarily to parse OCSP URLs. New -url
5012 option to ocsp utility.
5015 *) New nonce behavior. The return value of OCSP_check_nonce() now
5016 reflects the various checks performed. Applications can decide
5017 whether to tolerate certain situations such as an absent nonce
5018 in a response when one was present in a request: the ocsp application
5019 just prints out a warning. New function OCSP_add1_basic_nonce()
5020 this is to allow responders to include a nonce in a response even if
5021 the request is nonce-less.
5024 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5025 skipped when using openssl x509 multiple times on a single input file,
5026 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5029 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5030 set string type: to handle setting ASN1_TIME structures. Fix ca
5031 utility to correctly initialize revocation date of CRLs.
5034 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5035 the clients preferred ciphersuites and rather use its own preferences.
5036 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5037 Internet Explorer by ensuring unchanged hash method during stepup.
5038 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5041 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5042 to aes and add a new 'exist' option to print out symbols that don't
5046 *) Additional options to ocsp utility to allow flags to be set and
5047 additional certificates supplied.
5050 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5051 OCSP client a number of certificate to only verify the response
5055 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5056 handle the new API. Currently only ECB, CBC modes supported. Add new
5059 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5060 Encryption Standard (AES) Ciphersuites for Transport Layer
5061 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5062 not enabled by default and were not part of the "ALL" ciphersuite
5063 alias because they were not yet official; they could be
5064 explicitly requested by specifying the "AESdraft" ciphersuite
5065 group alias. In the final release of OpenSSL 0.9.7, the group
5066 alias is called "AES" and is part of "ALL".)
5067 [Ben Laurie, Steve Henson, Bodo Moeller]
5069 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5070 request to response.
5073 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5074 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5075 extract information from a certificate request. OCSP_response_create()
5076 creates a response and optionally adds a basic response structure.
5077 OCSP_basic_add1_status() adds a complete single response to a basic
5078 response and returns the OCSP_SINGLERESP structure just added (to allow
5079 extensions to be included for example). OCSP_basic_add1_cert() adds a
5080 certificate to a basic response and OCSP_basic_sign() signs a basic
5081 response with various flags. New helper functions ASN1_TIME_check()
5082 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5083 (converts ASN1_TIME to GeneralizedTime).
5086 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5087 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5088 structure from a certificate. X509_pubkey_digest() digests the public_key
5089 contents: this is used in various key identifiers.
5092 *) Make sk_sort() tolerate a NULL argument.
5093 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5095 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5096 passed by the function are trusted implicitly. If any of them signed the
5097 response then it is assumed to be valid and is not verified.
5100 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5101 to data. This was previously part of the PKCS7 ASN1 code. This
5102 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5103 [Steve Henson, reported by Kenneth R. Robinette
5104 <support@securenetterm.com>]
5106 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5107 routines: without these tracing memory leaks is very painful.
5108 Fix leaks in PKCS12 and PKCS7 routines.
5111 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5112 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5113 effectively meant GeneralizedTime would never be used. Now it
5114 is initialised to -1 but X509_time_adj() now has to check the value
5115 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5116 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5117 [Steve Henson, reported by Kenneth R. Robinette
5118 <support@securenetterm.com>]
5120 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5121 result in a zero length in the ASN1_INTEGER structure which was
5122 not consistent with the structure when d2i_ASN1_INTEGER() was used
5123 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5124 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5125 where it did not print out a minus for negative ASN1_INTEGER.
5128 *) Add summary printout to ocsp utility. The various functions which
5129 convert status values to strings have been renamed to:
5130 OCSP_response_status_str(), OCSP_cert_status_str() and
5131 OCSP_crl_reason_str() and are no longer static. New options
5132 to verify nonce values and to disable verification. OCSP response
5133 printout format cleaned up.
5136 *) Add additional OCSP certificate checks. These are those specified
5137 in RFC2560. This consists of two separate checks: the CA of the
5138 certificate being checked must either be the OCSP signer certificate
5139 or the issuer of the OCSP signer certificate. In the latter case the
5140 OCSP signer certificate must contain the OCSP signing extended key
5141 usage. This check is performed by attempting to match the OCSP
5142 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5143 in the OCSP_CERTID structures of the response.
5146 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5147 and related routines. This uses the standard OpenSSL certificate
5148 verify routines to perform initial checks (just CA validity) and
5149 to obtain the certificate chain. Then additional checks will be
5150 performed on the chain. Currently the root CA is checked to see
5151 if it is explicitly trusted for OCSP signing. This is used to set
5152 a root CA as a global signing root: that is any certificate that
5153 chains to that CA is an acceptable OCSP signing certificate.
5156 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5157 extensions from a separate configuration file.
5158 As when reading extensions from the main configuration file,
5159 the '-extensions ...' option may be used for specifying the
5161 [Massimiliano Pala <madwolf@comune.modena.it>]
5163 *) New OCSP utility. Allows OCSP requests to be generated or
5164 read. The request can be sent to a responder and the output
5165 parsed, outputed or printed in text form. Not complete yet:
5166 still needs to check the OCSP response validity.
5169 *) New subcommands for 'openssl ca':
5170 'openssl ca -status <serial>' prints the status of the cert with
5171 the given serial number (according to the index file).
5172 'openssl ca -updatedb' updates the expiry status of certificates
5174 [Massimiliano Pala <madwolf@comune.modena.it>]
5176 *) New '-newreq-nodes' command option to CA.pl. This is like
5177 '-newreq', but calls 'openssl req' with the '-nodes' option
5178 so that the resulting key is not encrypted.
5179 [Damien Miller <djm@mindrot.org>]
5181 *) New configuration for the GNU Hurd.
5182 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5184 *) Initial code to implement OCSP basic response verify. This
5185 is currently incomplete. Currently just finds the signer's
5186 certificate and verifies the signature on the response.
5189 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5190 value of OPENSSLDIR. This is available via the new '-d' option
5191 to 'openssl version', and is also included in 'openssl version -a'.
5194 *) Allowing defining memory allocation callbacks that will be given
5195 file name and line number information in additional arguments
5196 (a const char* and an int). The basic functionality remains, as
5197 well as the original possibility to just replace malloc(),
5198 realloc() and free() by functions that do not know about these
5199 additional arguments. To register and find out the current
5200 settings for extended allocation functions, the following
5201 functions are provided:
5203 CRYPTO_set_mem_ex_functions
5204 CRYPTO_set_locked_mem_ex_functions
5205 CRYPTO_get_mem_ex_functions
5206 CRYPTO_get_locked_mem_ex_functions
5208 These work the same way as CRYPTO_set_mem_functions and friends.
5209 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5210 extended allocation function is enabled.
5211 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5212 a conventional allocation function is enabled.
5213 [Richard Levitte, Bodo Moeller]
5215 *) Finish off removing the remaining LHASH function pointer casts.
5216 There should no longer be any prototype-casting required when using
5217 the LHASH abstraction, and any casts that remain are "bugs". See
5218 the callback types and macros at the head of lhash.h for details
5219 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5222 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5223 If /dev/[u]random devices are not available or do not return enough
5224 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5226 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5227 /etc/entropy will be queried once each in this sequence, quering stops
5228 when enough entropy was collected without querying more sockets.
5231 *) Change the Unix RAND_poll() variant to be able to poll several
5232 random devices, as specified by DEVRANDOM, until a sufficient amount
5233 of data has been collected. We spend at most 10 ms on each file
5234 (select timeout) and read in non-blocking mode. DEVRANDOM now
5235 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5236 (previously it was just the string "/dev/urandom"), so on typical
5237 platforms the 10 ms delay will never occur.
5238 Also separate out the Unix variant to its own file, rand_unix.c.
5239 For VMS, there's a currently-empty rand_vms.c.
5242 *) Move OCSP client related routines to ocsp_cl.c. These
5243 provide utility functions which an application needing
5244 to issue a request to an OCSP responder and analyse the
5245 response will typically need: as opposed to those which an
5246 OCSP responder itself would need which will be added later.
5248 OCSP_request_sign() signs an OCSP request with an API similar
5249 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5250 response. OCSP_response_get1_basic() extracts basic response
5251 from response. OCSP_resp_find_status(): finds and extracts status
5252 information from an OCSP_CERTID structure (which will be created
5253 when the request structure is built). These are built from lower
5254 level functions which work on OCSP_SINGLERESP structures but
5255 wont normally be used unless the application wishes to examine
5256 extensions in the OCSP response for example.
5258 Replace nonce routines with a pair of functions.
5259 OCSP_request_add1_nonce() adds a nonce value and optionally
5260 generates a random value. OCSP_check_nonce() checks the
5261 validity of the nonce in an OCSP response.
5264 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5265 This doesn't copy the supplied OCSP_CERTID and avoids the
5266 need to free up the newly created id. Change return type
5267 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5268 This can then be used to add extensions to the request.
5269 Deleted OCSP_request_new(), since most of its functionality
5270 is now in OCSP_REQUEST_new() (and the case insensitive name
5271 clash) apart from the ability to set the request name which
5272 will be added elsewhere.
5275 *) Update OCSP API. Remove obsolete extensions argument from
5276 various functions. Extensions are now handled using the new
5277 OCSP extension code. New simple OCSP HTTP function which
5278 can be used to send requests and parse the response.
5281 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5282 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5283 uses the special reorder version of SET OF to sort the attributes
5284 and reorder them to match the encoded order. This resolves a long
5285 standing problem: a verify on a PKCS7 structure just after signing
5286 it used to fail because the attribute order did not match the
5287 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5288 it uses the received order. This is necessary to tolerate some broken
5289 software that does not order SET OF. This is handled by encoding
5290 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5291 to produce the required SET OF.
5294 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5295 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5296 files to get correct declarations of the ASN.1 item variables.
5299 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5300 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5301 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5302 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5303 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5304 ASN1_ITEM and no wrapper functions.
5307 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5308 replace the old function pointer based I/O routines. Change most of
5309 the *_d2i_bio() and *_d2i_fp() functions to use these.
5312 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5313 lines, recognice more "algorithms" that can be deselected, and make
5314 it complain about algorithm deselection that isn't recognised.
5317 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5318 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5319 to use new functions. Add NO_ASN1_OLD which can be set to remove
5320 some old style ASN1 functions: this can be used to determine if old
5321 code will still work when these eventually go away.
5324 *) New extension functions for OCSP structures, these follow the
5325 same conventions as certificates and CRLs.
5328 *) New function X509V3_add1_i2d(). This automatically encodes and
5329 adds an extension. Its behaviour can be customised with various
5330 flags to append, replace or delete. Various wrappers added for
5331 certifcates and CRLs.
5334 *) Fix to avoid calling the underlying ASN1 print routine when
5335 an extension cannot be parsed. Correct a typo in the
5336 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5339 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5340 entries for variables.
5343 *) Add functionality to apps/openssl.c for detecting locking
5344 problems: As the program is single-threaded, all we have
5345 to do is register a locking callback using an array for
5346 storing which locks are currently held by the program.
5349 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5350 SSL_get_ex_data_X509_STORE_idx(), which is used in
5351 ssl_verify_cert_chain() and thus can be called at any time
5352 during TLS/SSL handshakes so that thread-safety is essential.
5353 Unfortunately, the ex_data design is not at all suited
5354 for multi-threaded use, so it probably should be abolished.
5357 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5358 [Broadcom, tweaked and integrated by Geoff Thorpe]
5360 *) Move common extension printing code to new function
5361 X509V3_print_extensions(). Reorganise OCSP print routines and
5362 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5365 *) New function X509_signature_print() to remove duplication in some
5369 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5370 set (this was treated exactly the same as SET OF previously). This
5371 is used to reorder the STACK representing the structure to match the
5372 encoding. This will be used to get round a problem where a PKCS7
5373 structure which was signed could not be verified because the STACK
5374 order did not reflect the encoded order.
5377 *) Reimplement the OCSP ASN1 module using the new code.
5380 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5381 for its ASN1 operations. The old style function pointers still exist
5382 for now but they will eventually go away.
5385 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5386 completely replaces the old ASN1 functionality with a table driven
5387 encoder and decoder which interprets an ASN1_ITEM structure describing
5388 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5389 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5390 has also been converted to the new form.
5393 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5394 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5395 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5396 for negative moduli.
5399 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5400 of not touching the result's sign bit.
5403 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5407 *) Changed the LHASH code to use prototypes for callbacks, and created
5408 macros to declare and implement thin (optionally static) functions
5409 that provide type-safety and avoid function pointer casting for the
5410 type-specific callbacks.
5413 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5415 [Veers Staats <staatsvr@asc.hpc.mil>,
5416 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5418 *) Reformat the FAQ so the different questions and answers can be divided
5419 in sections depending on the subject.
5422 *) Have the zlib compression code load ZLIB.DLL dynamically under
5426 *) New function BN_mod_sqrt for computing square roots modulo a prime
5427 (using the probabilistic Tonelli-Shanks algorithm unless
5428 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5429 be handled deterministically).
5430 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5432 *) Make BN_mod_inverse faster by explicitly handling small quotients
5433 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5434 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5437 *) New function BN_kronecker.
5440 *) Fix BN_gcd so that it works on negative inputs; the result is
5441 positive unless both parameters are zero.
5442 Previously something reasonably close to an infinite loop was
5443 possible because numbers could be growing instead of shrinking
5444 in the implementation of Euclid's algorithm.
5447 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5448 sign of the number in question.
5450 Fix BN_is_word(a,w) to work correctly for w == 0.
5452 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5453 because its test if the absolute value of 'a' equals 'w'.
5454 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5455 it exists mostly for use in the implementations of BN_is_zero(),
5456 BN_is_one(), and BN_is_word().
5459 *) New function BN_swap.
5462 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5463 the exponentiation functions are more likely to produce reasonable
5464 results on negative inputs.
5467 *) Change BN_mod_mul so that the result is always non-negative.
5468 Previously, it could be negative if one of the factors was negative;
5469 I don't think anyone really wanted that behaviour.
5472 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5473 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5474 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5475 and add new functions:
5484 BN_mod_lshift1_quick
5488 These functions always generate non-negative results.
5490 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5491 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5493 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5494 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5495 be reduced modulo m.
5496 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5499 The following entry accidentily appeared in the CHANGES file
5500 distributed with OpenSSL 0.9.7. The modifications described in
5501 it do *not* apply to OpenSSL 0.9.7.
5503 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5504 was actually never needed) and in BN_mul(). The removal in BN_mul()
5505 required a small change in bn_mul_part_recursive() and the addition
5506 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5507 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5508 bn_sub_words() and bn_add_words() except they take arrays with
5513 *) In 'openssl passwd', verify passwords read from the terminal
5514 unless the '-salt' option is used (which usually means that
5515 verification would just waste user's time since the resulting
5516 hash is going to be compared with some given password hash)
5517 or the new '-noverify' option is used.
5519 This is an incompatible change, but it does not affect
5520 non-interactive use of 'openssl passwd' (passwords on the command
5521 line, '-stdin' option, '-in ...' option) and thus should not
5525 *) Remove all references to RSAref, since there's no more need for it.
5528 *) Make DSO load along a path given through an environment variable
5529 (SHLIB_PATH) with shl_load().
5532 *) Constify the ENGINE code as a result of BIGNUM constification.
5533 Also constify the RSA code and most things related to it. In a
5534 few places, most notable in the depth of the ASN.1 code, ugly
5535 casts back to non-const were required (to be solved at a later
5539 *) Make it so the openssl application has all engines loaded by default.
5542 *) Constify the BIGNUM routines a little more.
5545 *) Add the following functions:
5547 ENGINE_load_cswift()
5549 ENGINE_load_atalla()
5551 ENGINE_load_builtin_engines()
5553 That way, an application can itself choose if external engines that
5554 are built-in in OpenSSL shall ever be used or not. The benefit is
5555 that applications won't have to be linked with libdl or other dso
5556 libraries unless it's really needed.
5558 Changed 'openssl engine' to load all engines on demand.
5559 Changed the engine header files to avoid the duplication of some
5560 declarations (they differed!).
5563 *) 'openssl engine' can now list capabilities.
5566 *) Better error reporting in 'openssl engine'.
5569 *) Never call load_dh_param(NULL) in s_server.
5572 *) Add engine application. It can currently list engines by name and
5573 identity, and test if they are actually available.
5576 *) Improve RPM specification file by forcing symbolic linking and making
5577 sure the installed documentation is also owned by root.root.
5578 [Damien Miller <djm@mindrot.org>]
5580 *) Give the OpenSSL applications more possibilities to make use of
5581 keys (public as well as private) handled by engines.
5584 *) Add OCSP code that comes from CertCo.
5587 *) Add VMS support for the Rijndael code.
5590 *) Added untested support for Nuron crypto accelerator.
5593 *) Add support for external cryptographic devices. This code was
5594 previously distributed separately as the "engine" branch.
5595 [Geoff Thorpe, Richard Levitte]
5597 *) Rework the filename-translation in the DSO code. It is now possible to
5598 have far greater control over how a "name" is turned into a filename
5599 depending on the operating environment and any oddities about the
5600 different shared library filenames on each system.
5603 *) Support threads on FreeBSD-elf in Configure.
5606 *) Fix for SHA1 assembly problem with MASM: it produces
5607 warnings about corrupt line number information when assembling
5608 with debugging information. This is caused by the overlapping
5610 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5613 NCONF_get_number() has no error checking at all. As a replacement,
5614 NCONF_get_number_e() is defined (_e for "error checking") and is
5615 promoted strongly. The old NCONF_get_number is kept around for
5616 binary backward compatibility.
5617 Make it possible for methods to load from something other than a BIO,
5618 by providing a function pointer that is given a name instead of a BIO.
5619 For example, this could be used to load configuration data from an
5623 *) Fix for non blocking accept BIOs. Added new I/O special reason
5624 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5625 with non blocking I/O was not possible because no retry code was
5626 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5630 *) Added the beginnings of Rijndael support.
5633 *) Fix for bug in DirectoryString mask setting. Add support for
5634 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5635 to allow certificate printing to more controllable, additional
5636 'certopt' option to 'x509' to allow new printing options to be
5640 *) Clean old EAY MD5 hack from e_os.h.
5643 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5645 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5646 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5647 [Joe Orton, Steve Henson]
5649 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5651 *) Fix additional bug revealed by the NISCC test suite:
5653 Stop bug triggering large recursion when presented with
5654 certain ASN.1 tags (CVE-2003-0851)
5657 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5659 *) Fix various bugs revealed by running the NISCC test suite:
5661 Stop out of bounds reads in the ASN1 code when presented with
5662 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5664 If verify callback ignores invalid public key errors don't try to check
5665 certificate signature with the NULL public key.
5669 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5670 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5674 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5675 extra data after the compression methods not only for TLS 1.0
5676 but also for SSL 3.0 (as required by the specification).
5677 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5679 *) Change X509_certificate_type() to mark the key as exported/exportable
5680 when it's 512 *bits* long, not 512 bytes.
5683 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5685 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5686 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5687 a protocol version number mismatch like a decryption error
5688 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5691 *) Turn on RSA blinding by default in the default implementation
5692 to avoid a timing attack. Applications that don't want it can call
5693 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5694 They would be ill-advised to do so in most cases.
5695 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5697 *) Change RSA blinding code so that it works when the PRNG is not
5698 seeded (in this case, the secret RSA exponent is abused as
5699 an unpredictable seed -- if it is not unpredictable, there
5700 is no point in blinding anyway). Make RSA blinding thread-safe
5701 by remembering the creator's thread ID in rsa->blinding and
5702 having all other threads use local one-time blinding factors
5703 (this requires more computation than sharing rsa->blinding, but
5704 avoids excessive locking; and if an RSA object is not shared
5705 between threads, blinding will still be very fast).
5708 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5710 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5711 via timing by performing a MAC computation even if incorrrect
5712 block cipher padding has been found. This is a countermeasure
5713 against active attacks where the attacker has to distinguish
5714 between bad padding and a MAC verification error. (CVE-2003-0078)
5716 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5717 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5718 Martin Vuagnoux (EPFL, Ilion)]
5720 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5722 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5723 memory from it's contents. This is done with a counter that will
5724 place alternating values in each byte. This can be used to solve
5725 two issues: 1) the removal of calls to memset() by highly optimizing
5726 compilers, and 2) cleansing with other values than 0, since those can
5727 be read through on certain media, for example a swap space on disk.
5730 *) Bugfix: client side session caching did not work with external caching,
5731 because the session->cipher setting was not restored when reloading
5732 from the external cache. This problem was masked, when
5733 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5734 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5737 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5738 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5739 [Zeev Lieber <zeev-l@yahoo.com>]
5741 *) Undo an undocumented change introduced in 0.9.6e which caused
5742 repeated calls to OpenSSL_add_all_ciphers() and
5743 OpenSSL_add_all_digests() to be ignored, even after calling
5747 *) Change the default configuration reader to deal with last line not
5748 being properly terminated.
5751 *) Change X509_NAME_cmp() so it applies the special rules on handling
5752 DN values that are of type PrintableString, as well as RDNs of type
5753 emailAddress where the value has the type ia5String.
5754 [stefank@valicert.com via Richard Levitte]
5756 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5757 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5758 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5759 the bitwise-OR of the two for use by the majority of applications
5760 wanting this behaviour, and update the docs. The documented
5761 behaviour and actual behaviour were inconsistent and had been
5762 changing anyway, so this is more a bug-fix than a behavioural
5764 [Geoff Thorpe, diagnosed by Nadav Har'El]
5766 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5767 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5770 *) Fix initialization code race conditions in
5771 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5772 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5773 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5774 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5775 ssl2_get_cipher_by_char(),
5776 ssl3_get_cipher_by_char().
5777 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5779 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5780 the cached sessions are flushed, as the remove_cb() might use ex_data
5781 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5782 (see [openssl.org #212]).
5783 [Geoff Thorpe, Lutz Jaenicke]
5785 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5786 length, instead of the encoding length to d2i_ASN1_OBJECT.
5789 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5791 *) [In 0.9.6g-engine release:]
5792 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5793 [Lynn Gazis <lgazis@rainbow.com>]
5795 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5797 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5798 and get fix the header length calculation.
5799 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5800 Alon Kantor <alonk@checkpoint.com> (and others),
5803 *) Use proper error handling instead of 'assertions' in buffer
5804 overflow checks added in 0.9.6e. This prevents DoS (the
5805 assertions could call abort()).
5806 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5808 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5810 *) Add various sanity checks to asn1_get_length() to reject
5811 the ASN1 length bytes if they exceed sizeof(long), will appear
5812 negative or the content length exceeds the length of the
5814 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5816 *) Fix cipher selection routines: ciphers without encryption had no flags
5817 for the cipher strength set and where therefore not handled correctly
5818 by the selection routines (PR #130).
5821 *) Fix EVP_dsa_sha macro.
5825 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5826 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5827 that was added in OpenSSL 0.9.6d.
5829 As the countermeasure turned out to be incompatible with some
5830 broken SSL implementations, the new option is part of SSL_OP_ALL.
5831 SSL_OP_ALL is usually employed when compatibility with weird SSL
5832 implementations is desired (e.g. '-bugs' option to 's_client' and
5833 's_server'), so the new option is automatically set in many
5837 *) Changes in security patch:
5839 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5840 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5841 Air Force Materiel Command, USAF, under agreement number
5844 *) Add various sanity checks to asn1_get_length() to reject
5845 the ASN1 length bytes if they exceed sizeof(long), will appear
5846 negative or the content length exceeds the length of the
5847 supplied buffer. (CVE-2002-0659)
5848 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5850 *) Assertions for various potential buffer overflows, not known to
5852 [Ben Laurie (CHATS)]
5854 *) Various temporary buffers to hold ASCII versions of integers were
5855 too small for 64 bit platforms. (CVE-2002-0655)
5856 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5858 *) Remote buffer overflow in SSL3 protocol - an attacker could
5859 supply an oversized session ID to a client. (CVE-2002-0656)
5860 [Ben Laurie (CHATS)]
5862 *) Remote buffer overflow in SSL2 protocol - an attacker could
5863 supply an oversized client master key. (CVE-2002-0656)
5864 [Ben Laurie (CHATS)]
5866 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5868 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5869 encoded as NULL) with id-dsa-with-sha1.
5870 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5872 *) Check various X509_...() return values in apps/req.c.
5873 [Nils Larsch <nla@trustcenter.de>]
5875 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5876 an end-of-file condition would erronously be flagged, when the CRLF
5877 was just at the end of a processed block. The bug was discovered when
5878 processing data through a buffering memory BIO handing the data to a
5879 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5880 <ptsekov@syntrex.com> and Nedelcho Stanev.
5883 *) Implement a countermeasure against a vulnerability recently found
5884 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5885 before application data chunks to avoid the use of known IVs
5886 with data potentially chosen by the attacker.
5889 *) Fix length checks in ssl3_get_client_hello().
5892 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5893 to prevent ssl3_read_internal() from incorrectly assuming that
5894 ssl3_read_bytes() found application data while handshake
5895 processing was enabled when in fact s->s3->in_read_app_data was
5896 merely automatically cleared during the initial handshake.
5897 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5899 *) Fix object definitions for Private and Enterprise: they were not
5900 recognized in their shortname (=lowercase) representation. Extend
5901 obj_dat.pl to issue an error when using undefined keywords instead
5902 of silently ignoring the problem (Svenning Sorensen
5903 <sss@sss.dnsalias.net>).
5906 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5907 generators, i.e. generators other than 2 and 5. (Previously, the
5908 code did not properly initialise the 'add' and 'rem' values to
5909 BN_generate_prime().)
5911 In the new general case, we do not insist that 'generator' is
5912 actually a primitive root: This requirement is rather pointless;
5913 a generator of the order-q subgroup is just as good, if not
5917 *) Map new X509 verification errors to alerts. Discovered and submitted by
5918 Tom Wu <tom@arcot.com>.
5921 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5922 returning non-zero before the data has been completely received
5923 when using non-blocking I/O.
5924 [Bodo Moeller; problem pointed out by John Hughes]
5926 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5927 [Ben Laurie, Lutz Jaenicke]
5929 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5930 Yoram Zahavi <YoramZ@gilian.com>).
5933 *) Add information about CygWin 1.3 and on, and preserve proper
5934 configuration for the versions before that.
5935 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5937 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5938 check whether we deal with a copy of a session and do not delete from
5939 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5940 <izhar@checkpoint.com>.
5943 *) Do not store session data into the internal session cache, if it
5944 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5945 flag is set). Proposed by Aslam <aslam@funk.com>.
5948 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5952 *) [In 0.9.6d-engine release:]
5953 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5954 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5956 *) Add the configuration target linux-s390x.
5957 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5959 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5960 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5961 variable as an indication that a ClientHello message has been
5962 received. As the flag value will be lost between multiple
5963 invocations of ssl3_accept when using non-blocking I/O, the
5964 function may not be aware that a handshake has actually taken
5965 place, thus preventing a new session from being added to the
5968 To avoid this problem, we now set s->new_session to 2 instead of
5969 using a local variable.
5970 [Lutz Jaenicke, Bodo Moeller]
5972 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5973 if the SSL_R_LENGTH_MISMATCH error is detected.
5974 [Geoff Thorpe, Bodo Moeller]
5976 *) New 'shared_ldflag' column in Configure platform table.
5979 *) Fix EVP_CIPHER_mode macro.
5980 ["Dan S. Camper" <dan@bti.net>]
5982 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5983 type, we must throw them away by setting rr->length to 0.
5984 [D P Chang <dpc@qualys.com>]
5986 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5988 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5989 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5990 worked incorrectly for those cases where range = 10..._2 and
5991 3*range is two bits longer than range.)
5994 *) Only add signing time to PKCS7 structures if it is not already
5998 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5999 OBJ_ld_ce should be OBJ_id_ce.
6000 Also some ip-pda OIDs in crypto/objects/objects.txt were
6001 incorrect (cf. RFC 3039).
6002 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6004 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6005 returns early because it has nothing to do.
6006 [Andy Schneider <andy.schneider@bjss.co.uk>]
6008 *) [In 0.9.6c-engine release:]
6009 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6010 [Andy Schneider <andy.schneider@bjss.co.uk>]
6012 *) [In 0.9.6c-engine release:]
6013 Add support for Cryptographic Appliance's keyserver technology.
6014 (Use engine 'keyclient')
6015 [Cryptographic Appliances and Geoff Thorpe]
6017 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6018 is called via tools/c89.sh because arguments have to be
6019 rearranged (all '-L' options must appear before the first object
6021 [Richard Shapiro <rshapiro@abinitio.com>]
6023 *) [In 0.9.6c-engine release:]
6024 Add support for Broadcom crypto accelerator cards, backported
6026 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6028 *) [In 0.9.6c-engine release:]
6029 Add support for SureWare crypto accelerator cards from
6030 Baltimore Technologies. (Use engine 'sureware')
6031 [Baltimore Technologies and Mark Cox]
6033 *) [In 0.9.6c-engine release:]
6034 Add support for crypto accelerator cards from Accelerated
6035 Encryption Processing, www.aep.ie. (Use engine 'aep')
6036 [AEP Inc. and Mark Cox]
6038 *) Add a configuration entry for gcc on UnixWare.
6039 [Gary Benson <gbenson@redhat.com>]
6041 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6042 messages are stored in a single piece (fixed-length part and
6043 variable-length part combined) and fix various bugs found on the way.
6046 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6047 instead. BIO_gethostbyname() does not know what timeouts are
6048 appropriate, so entries would stay in cache even when they have
6050 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6052 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6053 faced with a pathologically small ClientHello fragment that does
6054 not contain client_version: Instead of aborting with an error,
6055 simply choose the highest available protocol version (i.e.,
6056 TLS 1.0 unless it is disabled). In practice, ClientHello
6057 messages are never sent like this, but this change gives us
6058 strictly correct behaviour at least for TLS.
6061 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6062 never resets s->method to s->ctx->method when called from within
6063 one of the SSL handshake functions.
6064 [Bodo Moeller; problem pointed out by Niko Baric]
6066 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6067 (sent using the client's version number) if client_version is
6068 smaller than the protocol version in use. Also change
6069 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6070 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6071 the client will at least see that alert.
6074 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6078 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6079 client receives HelloRequest while in a handshake.
6080 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6082 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6083 should end in 'break', not 'goto end' which circuments various
6084 cleanups done in state SSL_ST_OK. But session related stuff
6085 must be disabled for SSL_ST_OK in the case that we just sent a
6088 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6089 before just sending a HelloRequest.
6090 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6092 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6093 reveal whether illegal block cipher padding was found or a MAC
6094 verification error occured. (Neither SSLerr() codes nor alerts
6095 are directly visible to potential attackers, but the information
6096 may leak via logfiles.)
6098 Similar changes are not required for the SSL 2.0 implementation
6099 because the number of padding bytes is sent in clear for SSL 2.0,
6100 and the extra bytes are just ignored. However ssl/s2_pkt.c
6101 failed to verify that the purported number of padding bytes is in
6105 *) Add OpenUNIX-8 support including shared libraries
6106 (Boyd Lynn Gerber <gerberb@zenez.com>).
6109 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6110 'wristwatch attack' using huge encoding parameters (cf.
6111 James H. Manger's CRYPTO 2001 paper). Note that the
6112 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6113 encoding parameters and hence was not vulnerable.
6116 *) BN_sqr() bug fix.
6117 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6119 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6120 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6121 followed by modular reduction.
6122 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6124 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6125 equivalent based on BN_pseudo_rand() instead of BN_rand().
6128 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6129 This function was broken, as the check for a new client hello message
6130 to handle SGC did not allow these large messages.
6131 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6134 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6137 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6138 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6141 *) Rework the configuration and shared library support for Tru64 Unix.
6142 The configuration part makes use of modern compiler features and
6143 still retains old compiler behavior for those that run older versions
6144 of the OS. The shared library support part includes a variant that
6145 uses the RPATH feature, and is available through the special
6146 configuration target "alpha-cc-rpath", which will never be selected
6148 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6150 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6151 with the same message size as in ssl3_get_certificate_request().
6152 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6153 messages might inadvertently be reject as too long.
6154 [Petr Lampa <lampa@fee.vutbr.cz>]
6156 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6159 *) Modified SSL library such that the verify_callback that has been set
6160 specificly for an SSL object with SSL_set_verify() is actually being
6161 used. Before the change, a verify_callback set with this function was
6162 ignored and the verify_callback() set in the SSL_CTX at the time of
6163 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6164 to allow the necessary settings.
6167 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6168 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6169 done automatically (in contradiction to the requirements of the C
6170 standard). This made problems when used from OpenSSH.
6173 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6174 dh->length and always used
6176 BN_rand_range(priv_key, dh->p).
6178 BN_rand_range() is not necessary for Diffie-Hellman, and this
6179 specific range makes Diffie-Hellman unnecessarily inefficient if
6180 dh->length (recommended exponent length) is much smaller than the
6181 length of dh->p. We could use BN_rand_range() if the order of
6182 the subgroup was stored in the DH structure, but we only have
6187 BN_rand(priv_key, l, ...)
6189 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6195 RSA_eay_public_encrypt
6196 RSA_eay_private_decrypt
6197 RSA_eay_private_encrypt (signing)
6198 RSA_eay_public_decrypt (signature verification)
6200 (default implementations for RSA_public_encrypt,
6201 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6202 always reject numbers >= n.
6205 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6206 to synchronize access to 'locking_thread'. This is necessary on
6207 systems where access to 'locking_thread' (an 'unsigned long'
6208 variable) is not atomic.
6211 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6212 *before* setting the 'crypto_lock_rand' flag. The previous code had
6213 a race condition if 0 is a valid thread ID.
6214 [Travis Vitek <vitek@roguewave.com>]
6216 *) Add support for shared libraries under Irix.
6217 [Albert Chin-A-Young <china@thewrittenword.com>]
6219 *) Add configuration option to build on Linux on both big-endian and
6221 [Ralf Baechle <ralf@uni-koblenz.de>]
6223 *) Add the possibility to create shared libraries on HP-UX.
6226 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6228 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6229 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6230 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6231 PRNG state recovery was possible based on the output of
6232 one PRNG request appropriately sized to gain knowledge on
6233 'md' followed by enough consecutive 1-byte PRNG requests
6234 to traverse all of 'state'.
6236 1. When updating 'md_local' (the current thread's copy of 'md')
6237 during PRNG output generation, hash all of the previous
6238 'md_local' value, not just the half used for PRNG output.
6240 2. Make the number of bytes from 'state' included into the hash
6241 independent from the number of PRNG bytes requested.
6243 The first measure alone would be sufficient to avoid
6244 Markku-Juhani's attack. (Actually it had never occurred
6245 to me that the half of 'md_local' used for chaining was the
6246 half from which PRNG output bytes were taken -- I had always
6247 assumed that the secret half would be used.) The second
6248 measure makes sure that additional data from 'state' is never
6249 mixed into 'md_local' in small portions; this heuristically
6250 further strengthens the PRNG.
6253 *) Fix crypto/bn/asm/mips3.s.
6256 *) When only the key is given to "enc", the IV is undefined. Print out
6257 an error message in this case.
6260 *) Handle special case when X509_NAME is empty in X509 printing routines.
6263 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6264 positive and less than q.
6267 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6268 used: it isn't thread safe and the add_lock_callback should handle
6270 [Paul Rose <Paul.Rose@bridge.com>]
6272 *) Verify that incoming data obeys the block size in
6273 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6277 [Ulf Möller, Bodo Möller]
6279 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6280 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6281 when fixing the server behaviour for backwards-compatible 'client
6282 hello' messages. (Note that the attack is impractical against
6283 SSL 3.0 and TLS 1.0 anyway because length and version checking
6284 means that the probability of guessing a valid ciphertext is
6285 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6288 Before 0.9.5, the countermeasure (hide the error by generating a
6289 random 'decryption result') did not work properly because
6290 ERR_clear_error() was missing, meaning that SSL_get_error() would
6291 detect the supposedly ignored error.
6293 Both problems are now fixed.
6296 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6297 (previously it was 1024).
6300 *) Fix for compatibility mode trust settings: ignore trust settings
6301 unless some valid trust or reject settings are present.
6304 *) Fix for blowfish EVP: its a variable length cipher.
6307 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6308 parameters in DSA public key structures and return an error in the
6309 DSA routines if parameters are absent.
6312 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6313 in the current directory if neither $RANDFILE nor $HOME was set.
6314 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6315 caused some confusion to Windows users who haven't defined $HOME.
6316 Thus RAND_file_name() is changed again: e_os.h can define a
6317 DEFAULT_HOME, which will be used if $HOME is not set.
6318 For Windows, we use "C:"; on other platforms, we still require
6319 environment variables.
6321 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6322 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6323 having multiple threads call RAND_poll() concurrently.
6326 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6327 combination of a flag and a thread ID variable.
6328 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6329 flag), *other* threads can enter ssleay_add_bytes without obeying
6330 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6331 that they do not hold after the first thread unsets add_do_not_lock).
6334 *) Change bctest again: '-x' expressions are not available in all
6338 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6340 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6341 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6343 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6344 the default extension for executables, if any. Also, make the perl
6345 scripts that use symlink() to test if it really exists and use "cp"
6346 if it doesn't. All this made OpenSSL compilable and installable in
6350 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6351 If SEQUENCE is length is indefinite just set c->slen to the total
6352 amount of data available.
6353 [Steve Henson, reported by shige@FreeBSD.org]
6354 [This change does not apply to 0.9.7.]
6356 *) Change bctest to avoid here-documents inside command substitution
6357 (workaround for FreeBSD /bin/sh bug).
6358 For compatibility with Ultrix, avoid shell functions (introduced
6359 in the bctest version that searches along $PATH).
6362 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6363 with des_encrypt() defined on some operating systems, like Solaris
6367 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6368 On the Importance of Eliminating Errors in Cryptographic
6369 Computations, J. Cryptology 14 (2001) 2, 101-119,
6370 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6373 *) MIPS assembler BIGNUM division bug fix.
6376 *) Disabled incorrect Alpha assembler code.
6379 *) Fix PKCS#7 decode routines so they correctly update the length
6380 after reading an EOC for the EXPLICIT tag.
6382 [This change does not apply to 0.9.7.]
6384 *) Fix bug in PKCS#12 key generation routines. This was triggered
6385 if a 3DES key was generated with a 0 initial byte. Include
6386 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6387 (but broken) behaviour.
6390 *) Enhance bctest to search for a working bc along $PATH and print
6392 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6394 *) Fix memory leaks in err.c: free err_data string if necessary;
6395 don't write to the wrong index in ERR_set_error_data.
6398 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6402 *) Replace rdtsc with _emit statements for VC++ version 5.
6403 [Jeremy Cooper <jeremy@baymoo.org>]
6405 *) Make it possible to reuse SSLv2 sessions.
6408 *) In copy_email() check for >= 0 as a return value for
6409 X509_NAME_get_index_by_NID() since 0 is a valid index.
6410 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6412 *) Avoid coredump with unsupported or invalid public keys by checking if
6413 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6414 PKCS7_verify() fails with non detached data.
6417 *) Don't use getenv in library functions when run as setuid/setgid.
6418 New function OPENSSL_issetugid().
6421 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6422 due to incorrect handling of multi-threading:
6424 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6426 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6428 3. Count how many times MemCheck_off() has been called so that
6429 nested use can be treated correctly. This also avoids
6430 inband-signalling in the previous code (which relied on the
6431 assumption that thread ID 0 is impossible).
6434 *) Add "-rand" option also to s_client and s_server.
6437 *) Fix CPU detection on Irix 6.x.
6438 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6439 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6441 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6444 [This change does not apply to 0.9.7.]
6446 *) Use the cached encoding of an X509_NAME structure rather than
6447 copying it. This is apparently the reason for the libsafe "errors"
6448 but the code is actually correct.
6451 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6452 Bleichenbacher's DSA attack.
6453 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6454 to be set and top=0 forces the highest bit to be set; top=-1 is new
6455 and leaves the highest bit random.
6456 [Ulf Moeller, Bodo Moeller]
6458 *) In the NCONF_...-based implementations for CONF_... queries
6459 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6460 a temporary CONF structure with the data component set to NULL
6461 (which gives segmentation faults in lh_retrieve).
6462 Instead, use NULL for the CONF pointer in CONF_get_string and
6463 CONF_get_number (which may use environment variables) and directly
6464 return NULL from CONF_get_section.
6467 *) Fix potential buffer overrun for EBCDIC.
6470 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6471 keyUsage if basicConstraints absent for a CA.
6474 *) Make SMIME_write_PKCS7() write mail header values with a format that
6475 is more generally accepted (no spaces before the semicolon), since
6476 some programs can't parse those values properly otherwise. Also make
6477 sure BIO's that break lines after each write do not create invalid
6481 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6482 macros previously used would not encode an empty SEQUENCE OF
6483 and break the signature.
6485 [This change does not apply to 0.9.7.]
6487 *) Zero the premaster secret after deriving the master secret in
6491 *) Add some EVP_add_digest_alias registrations (as found in
6492 OpenSSL_add_all_digests()) to SSL_library_init()
6493 aka OpenSSL_add_ssl_algorithms(). This provides improved
6494 compatibility with peers using X.509 certificates
6495 with unconventional AlgorithmIdentifier OIDs.
6498 *) Fix for Irix with NO_ASM.
6499 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6501 *) ./config script fixes.
6502 [Ulf Moeller, Richard Levitte]
6504 *) Fix 'openssl passwd -1'.
6507 *) Change PKCS12_key_gen_asc() so it can cope with non null
6508 terminated strings whose length is passed in the passlen
6509 parameter, for example from PEM callbacks. This was done
6510 by adding an extra length parameter to asc2uni().
6511 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6513 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6514 call failed, free the DSA structure.
6517 *) Fix to uni2asc() to cope with zero length Unicode strings.
6518 These are present in some PKCS#12 files.
6521 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6522 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6523 when writing a 32767 byte record.
6524 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6526 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6527 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6529 (RSA objects have a reference count access to which is protected
6530 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6531 so they are meant to be shared between threads.)
6532 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6533 "Reddie, Steven" <Steven.Reddie@ca.com>]
6535 *) Fix a deadlock in CRYPTO_mem_leaks().
6538 *) Use better test patterns in bntest.
6541 *) rand_win.c fix for Borland C.
6544 *) BN_rshift bugfix for n == 0.
6547 *) Add a 'bctest' script that checks for some known 'bc' bugs
6548 so that 'make test' does not abort just because 'bc' is broken.
6551 *) Store verify_result within SSL_SESSION also for client side to
6552 avoid potential security hole. (Re-used sessions on the client side
6553 always resulted in verify_result==X509_V_OK, not using the original
6554 result of the server certificate verification.)
6557 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6558 SSL3_RT_APPLICATION_DATA, return 0.
6559 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6563 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6564 releases, have been re-implemented by renaming the previous
6565 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6566 and ssl3_read_internal, respectively, and adding 'peek' parameters
6567 to them. The new ssl[23]_{read,peek} functions are calls to
6568 ssl[23]_read_internal with the 'peek' flag set appropriately.
6569 A 'peek' parameter has also been added to ssl3_read_bytes, which
6570 does the actual work for ssl3_read_internal.
6573 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6574 the method-specific "init()" handler. Also clean up ex_data after
6575 calling the method-specific "finish()" handler. Previously, this was
6576 happening the other way round.
6579 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6580 The previous value, 12, was not always sufficient for BN_mod_exp().
6583 *) Make sure that shared libraries get the internal name engine with
6584 the full version number and not just 0. This should mark the
6585 shared libraries as not backward compatible. Of course, this should
6586 be changed again when we can guarantee backward binary compatibility.
6589 *) Fix typo in get_cert_by_subject() in by_dir.c
6590 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6592 *) Rework the system to generate shared libraries:
6594 - Make note of the expected extension for the shared libraries and
6595 if there is a need for symbolic links from for example libcrypto.so.0
6596 to libcrypto.so.0.9.7. There is extended info in Configure for
6599 - Make as few rebuilds of the shared libraries as possible.
6601 - Still avoid linking the OpenSSL programs with the shared libraries.
6603 - When installing, install the shared libraries separately from the
6607 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6609 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6610 and not in SSL_clear because the latter is also used by the
6611 accept/connect functions; previously, the settings made by
6612 SSL_set_read_ahead would be lost during the handshake.
6613 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6615 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6616 Previously, it would create entries for disableed algorithms no
6620 *) Added several new manual pages for SSL_* function.
6623 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6625 *) In ssl23_get_client_hello, generate an error message when faced
6626 with an initial SSL 3.0/TLS record that is too small to contain the
6627 first two bytes of the ClientHello message, i.e. client_version.
6628 (Note that this is a pathologic case that probably has never happened
6629 in real life.) The previous approach was to use the version number
6630 from the record header as a substitute; but our protocol choice
6631 should not depend on that one because it is not authenticated
6632 by the Finished messages.
6635 *) More robust randomness gathering functions for Windows.
6636 [Jeffrey Altman <jaltman@columbia.edu>]
6638 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6639 not set then we don't setup the error code for issuer check errors
6640 to avoid possibly overwriting other errors which the callback does
6641 handle. If an application does set the flag then we assume it knows
6642 what it is doing and can handle the new informational codes
6646 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6647 a general "ANY" type, as such it should be able to decode anything
6648 including tagged types. However it didn't check the class so it would
6649 wrongly interpret tagged types in the same way as their universal
6650 counterpart and unknown types were just rejected. Changed so that the
6651 tagged and unknown types are handled in the same way as a SEQUENCE:
6652 that is the encoding is stored intact. There is also a new type
6653 "V_ASN1_OTHER" which is used when the class is not universal, in this
6654 case we have no idea what the actual type is so we just lump them all
6658 *) On VMS, stdout may very well lead to a file that is written to
6659 in a record-oriented fashion. That means that every write() will
6660 write a separate record, which will be read separately by the
6661 programs trying to read from it. This can be very confusing.
6663 The solution is to put a BIO filter in the way that will buffer
6664 text until a linefeed is reached, and then write everything a
6665 line at a time, so every record written will be an actual line,
6666 not chunks of lines and not (usually doesn't happen, but I've
6667 seen it once) several lines in one record. BIO_f_linebuffer() is
6670 Currently, it's a VMS-only method, because that's where it has
6671 been tested well enough.
6674 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6675 it can return incorrect results.
6676 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6677 but it was in 0.9.6-beta[12].)
6680 *) Disable the check for content being present when verifying detached
6681 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6682 include zero length content when signing messages.
6685 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6686 BIO_ctrl (for BIO pairs).
6689 *) Add DSO method for VMS.
6692 *) Bug fix: Montgomery multiplication could produce results with the
6696 *) Add RPM specification openssl.spec and modify it to build three
6697 packages. The default package contains applications, application
6698 documentation and run-time libraries. The devel package contains
6699 include files, static libraries and function documentation. The
6700 doc package contains the contents of the doc directory. The original
6701 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6704 *) Add a large number of documentation files for many SSL routines.
6705 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6707 *) Add a configuration entry for Sony News 4.
6708 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6710 *) Don't set the two most significant bits to one when generating a
6711 random number < q in the DSA library.
6714 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6715 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6716 the underlying transport is blocking) if a handshake took place.
6717 (The default behaviour is needed by applications such as s_client
6718 and s_server that use select() to determine when to use SSL_read;
6719 but for applications that know in advance when to expect data, it
6720 just makes things more complicated.)
6723 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6727 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6728 work better on such systems.
6729 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6731 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6732 Update PKCS12_parse() so it copies the friendlyName and the
6733 keyid to the certificates aux info.
6736 *) Fix bug in PKCS7_verify() which caused an infinite loop
6737 if there was more than one signature.
6738 [Sven Uszpelkat <su@celocom.de>]
6740 *) Major change in util/mkdef.pl to include extra information
6741 about each symbol, as well as presentig variables as well
6742 as functions. This change means that there's n more need
6743 to rebuild the .num files when some algorithms are excluded.
6746 *) Allow the verify time to be set by an application,
6747 rather than always using the current time.
6750 *) Phase 2 verify code reorganisation. The certificate
6751 verify code now looks up an issuer certificate by a
6752 number of criteria: subject name, authority key id
6753 and key usage. It also verifies self signed certificates
6754 by the same criteria. The main comparison function is
6755 X509_check_issued() which performs these checks.
6757 Lot of changes were necessary in order to support this
6758 without completely rewriting the lookup code.
6760 Authority and subject key identifier are now cached.
6762 The LHASH 'certs' is X509_STORE has now been replaced
6763 by a STACK_OF(X509_OBJECT). This is mainly because an
6764 LHASH can't store or retrieve multiple objects with
6765 the same hash value.
6767 As a result various functions (which were all internal
6768 use only) have changed to handle the new X509_STORE
6769 structure. This will break anything that messed round
6770 with X509_STORE internally.
6772 The functions X509_STORE_add_cert() now checks for an
6773 exact match, rather than just subject name.
6775 The X509_STORE API doesn't directly support the retrieval
6776 of multiple certificates matching a given criteria, however
6777 this can be worked round by performing a lookup first
6778 (which will fill the cache with candidate certificates)
6779 and then examining the cache for matches. This is probably
6780 the best we can do without throwing out X509_LOOKUP
6781 entirely (maybe later...).
6783 The X509_VERIFY_CTX structure has been enhanced considerably.
6785 All certificate lookup operations now go via a get_issuer()
6786 callback. Although this currently uses an X509_STORE it
6787 can be replaced by custom lookups. This is a simple way
6788 to bypass the X509_STORE hackery necessary to make this
6789 work and makes it possible to use more efficient techniques
6790 in future. A very simple version which uses a simple
6791 STACK for its trusted certificate store is also provided
6792 using X509_STORE_CTX_trusted_stack().
6794 The verify_cb() and verify() callbacks now have equivalents
6795 in the X509_STORE_CTX structure.
6797 X509_STORE_CTX also has a 'flags' field which can be used
6798 to customise the verify behaviour.
6801 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6802 excludes S/MIME capabilities.
6805 *) When a certificate request is read in keep a copy of the
6806 original encoding of the signed data and use it when outputing
6807 again. Signatures then use the original encoding rather than
6808 a decoded, encoded version which may cause problems if the
6809 request is improperly encoded.
6812 *) For consistency with other BIO_puts implementations, call
6813 buffer_write(b, ...) directly in buffer_puts instead of calling
6816 In BIO_puts, increment b->num_write as in BIO_write.
6817 [Peter.Sylvester@EdelWeb.fr]
6819 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6820 BN_zero, we may not return a BIGNUM with an array consisting of
6824 *) Avoid calling abort() from within the library when problems are
6825 detected, except if preprocessor symbols have been defined
6826 (such as REF_CHECK, BN_DEBUG etc.).
6829 *) New openssl application 'rsautl'. This utility can be
6830 used for low level RSA operations. DER public key
6831 BIO/fp routines also added.
6834 *) New Configure entry and patches for compiling on QNX 4.
6835 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6837 *) A demo state-machine implementation was sponsored by
6838 Nuron (http://www.nuron.com/) and is now available in
6839 demos/state_machine.
6842 *) New options added to the 'dgst' utility for signature
6843 generation and verification.
6846 *) Unrecognized PKCS#7 content types are now handled via a
6847 catch all ASN1_TYPE structure. This allows unsupported
6848 types to be stored as a "blob" and an application can
6849 encode and decode it manually.
6852 *) Fix various signed/unsigned issues to make a_strex.c
6854 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6856 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6857 length if passed a buffer. ASN1_INTEGER_to_BN failed
6858 if passed a NULL BN and its argument was negative.
6859 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6861 *) Modification to PKCS#7 encoding routines to output definite
6862 length encoding. Since currently the whole structures are in
6863 memory there's not real point in using indefinite length
6864 constructed encoding. However if OpenSSL is compiled with
6865 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6868 *) Added BIO_vprintf() and BIO_vsnprintf().
6871 *) Added more prefixes to parse for in the the strings written
6872 through a logging bio, to cover all the levels that are available
6873 through syslog. The prefixes are now:
6875 PANIC, EMERG, EMR => LOG_EMERG
6876 ALERT, ALR => LOG_ALERT
6877 CRIT, CRI => LOG_CRIT
6878 ERROR, ERR => LOG_ERR
6879 WARNING, WARN, WAR => LOG_WARNING
6880 NOTICE, NOTE, NOT => LOG_NOTICE
6881 INFO, INF => LOG_INFO
6882 DEBUG, DBG => LOG_DEBUG
6884 and as before, if none of those prefixes are present at the
6885 beginning of the string, LOG_ERR is chosen.
6887 On Win32, the LOG_* levels are mapped according to this:
6889 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6890 LOG_WARNING => EVENTLOG_WARNING_TYPE
6891 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6895 *) Made it possible to reconfigure with just the configuration
6896 argument "reconf" or "reconfigure". The command line arguments
6897 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6898 and are retrieved from there when reconfiguring.
6902 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6904 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6907 *) The obj_dat.pl script was messing up the sorting of object
6908 names. The reason was that it compared the quoted version
6909 of strings as a result "OCSP" > "OCSP Signing" because
6910 " > SPACE. Changed script to store unquoted versions of
6911 names and add quotes on output. It was also omitting some
6912 names from the lookup table if they were given a default
6913 value (that is if SN is missing it is given the same
6914 value as LN and vice versa), these are now added on the
6915 grounds that if an object has a name we should be able to
6916 look it up. Finally added warning output when duplicate
6917 short or long names are found.
6920 *) Changes needed for Tandem NSK.
6921 [Scott Uroff <scott@xypro.com>]
6923 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6924 RSA_padding_check_SSLv23(), special padding was never detected
6925 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6926 version rollback attacks was not effective.
6928 In s23_clnt.c, don't use special rollback-attack detection padding
6929 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6930 client; similarly, in s23_srvr.c, don't do the rollback check if
6931 SSL 2.0 is the only protocol enabled in the server.
6934 *) Make it possible to get hexdumps of unprintable data with 'openssl
6935 asn1parse'. By implication, the functions ASN1_parse_dump() and
6936 BIO_dump_indent() are added.
6939 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6940 these print out strings and name structures based on various
6941 flags including RFC2253 support and proper handling of
6942 multibyte characters. Added options to the 'x509' utility
6943 to allow the various flags to be set.
6946 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6947 Also change the functions X509_cmp_current_time() and
6948 X509_gmtime_adj() work with an ASN1_TIME structure,
6949 this will enable certificates using GeneralizedTime in validity
6950 dates to be checked.
6953 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6954 negative public key encodings) on by default,
6955 NO_NEG_PUBKEY_BUG can be set to disable it.
6958 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6959 content octets. An i2c_ASN1_OBJECT is unnecessary because
6960 the encoding can be trivially obtained from the structure.
6963 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6964 not read locks (CRYPTO_r_[un]lock).
6967 *) A first attempt at creating official support for shared
6968 libraries through configuration. I've kept it so the
6969 default is static libraries only, and the OpenSSL programs
6970 are always statically linked for now, but there are
6971 preparations for dynamic linking in place.
6972 This has been tested on Linux and Tru64.
6975 *) Randomness polling function for Win9x, as described in:
6976 Peter Gutmann, Software Generation of Practically Strong
6980 *) Fix so PRNG is seeded in req if using an already existing
6984 *) New options to smime application. -inform and -outform
6985 allow alternative formats for the S/MIME message including
6986 PEM and DER. The -content option allows the content to be
6987 specified separately. This should allow things like Netscape
6988 form signing output easier to verify.
6991 *) Fix the ASN1 encoding of tags using the 'long form'.
6994 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6995 STRING types. These convert content octets to and from the
6996 underlying type. The actual tag and length octets are
6997 already assumed to have been read in and checked. These
6998 are needed because all other string types have virtually
6999 identical handling apart from the tag. By having versions
7000 of the ASN1 functions that just operate on content octets
7001 IMPLICIT tagging can be handled properly. It also allows
7002 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7003 and ASN1_INTEGER are identical apart from the tag.
7006 *) Change the handling of OID objects as follows:
7008 - New object identifiers are inserted in objects.txt, following
7009 the syntax given in objects.README.
7010 - objects.pl is used to process obj_mac.num and create a new
7012 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7015 This is currently kind of a hack, and the perl code in objects.pl
7016 isn't very elegant, but it works as I intended. The simplest way
7017 to check that it worked correctly is to look in obj_dat.h and
7018 check the array nid_objs and make sure the objects haven't moved
7019 around (this is important!). Additions are OK, as well as
7020 consistent name changes.
7023 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7026 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7027 The given file adds to whatever has already been seeded into the
7028 random pool through the RANDFILE configuration file option or
7029 environment variable, or the default random state file.
7032 *) mkstack.pl now sorts each macro group into lexical order.
7033 Previously the output order depended on the order the files
7034 appeared in the directory, resulting in needless rewriting
7038 *) Patches to make OpenSSL compile under Win32 again. Mostly
7039 work arounds for the VC++ problem that it treats func() as
7040 func(void). Also stripped out the parts of mkdef.pl that
7041 added extra typesafe functions: these no longer exist.
7044 *) Reorganisation of the stack code. The macros are now all
7045 collected in safestack.h . Each macro is defined in terms of
7046 a "stack macro" of the form SKM_<name>(type, a, b). The
7047 DEBUG_SAFESTACK is now handled in terms of function casts,
7048 this has the advantage of retaining type safety without the
7049 use of additional functions. If DEBUG_SAFESTACK is not defined
7050 then the non typesafe macros are used instead. Also modified the
7051 mkstack.pl script to handle the new form. Needs testing to see
7052 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7053 the default if no major problems. Similar behaviour for ASN1_SET_OF
7054 and PKCS12_STACK_OF.
7057 *) When some versions of IIS use the 'NET' form of private key the
7058 key derivation algorithm is different. Normally MD5(password) is
7059 used as a 128 bit RC4 key. In the modified case
7060 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
7061 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7062 as the old Netscape_RSA functions except they have an additional
7063 'sgckey' parameter which uses the modified algorithm. Also added
7064 an -sgckey command line option to the rsa utility. Thanks to
7065 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7066 algorithm to openssl-dev.
7069 *) The evp_local.h macros were using 'c.##kname' which resulted in
7070 invalid expansion on some systems (SCO 5.0.5 for example).
7071 Corrected to 'c.kname'.
7072 [Phillip Porch <root@theporch.com>]
7074 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7075 a STACK of email addresses from a certificate or request, these look
7076 in the subject name and the subject alternative name extensions and
7077 omit any duplicate addresses.
7080 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7081 This makes DSA verification about 2 % faster.
7084 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7085 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7086 plus overhead for 1024 bit moduli).
7087 This makes exponentiations about 0.5 % faster for 1024 bit
7088 exponents (as measured by "openssl speed rsa2048").
7091 *) Rename memory handling macros to avoid conflicts with other
7093 Malloc => OPENSSL_malloc
7094 Malloc_locked => OPENSSL_malloc_locked
7095 Realloc => OPENSSL_realloc
7096 Free => OPENSSL_free
7099 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7100 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7103 *) CygWin32 support.
7104 [John Jarvie <jjarvie@newsguy.com>]
7106 *) The type-safe stack code has been rejigged. It is now only compiled
7107 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7108 by default all type-specific stack functions are "#define"d back to
7109 standard stack functions. This results in more streamlined output
7110 but retains the type-safety checking possibilities of the original
7114 *) The STACK code has been cleaned up, and certain type declarations
7115 that didn't make a lot of sense have been brought in line. This has
7116 also involved a cleanup of sorts in safestack.h to more correctly
7117 map type-safe stack functions onto their plain stack counterparts.
7118 This work has also resulted in a variety of "const"ifications of
7119 lots of the code, especially "_cmp" operations which should normally
7120 be prototyped with "const" parameters anyway.
7123 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7124 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7125 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7126 where all of 'md' is used each time the PRNG is used, but 'state'
7127 is used only indexed by a cyclic counter. As entropy may not be
7128 well distributed from the beginning, 'md' is important as a
7129 chaining variable. However, the output function chains only half
7130 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7131 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7132 in all of 'state' being rewritten, with the new values depending
7133 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7136 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7137 the handshake is continued after ssl_verify_cert_chain();
7138 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7139 can lead to 'unexplainable' connection aborts later.
7140 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7142 *) Major EVP API cipher revision.
7143 Add hooks for extra EVP features. This allows various cipher
7144 parameters to be set in the EVP interface. Support added for variable
7145 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7146 setting of RC2 and RC5 parameters.
7148 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7151 Remove lots of duplicated code from the EVP library. For example *every*
7152 cipher init() function handles the 'iv' in the same way according to the
7153 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7154 for CFB and OFB modes they zero ctx->num.
7156 New functionality allows removal of S/MIME code RC2 hack.
7158 Most of the routines have the same form and so can be declared in terms
7161 By shifting this to the top level EVP_CipherInit() it can be removed from
7162 all individual ciphers. If the cipher wants to handle IVs or keys
7163 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7166 Change lots of functions like EVP_EncryptUpdate() to now return a
7167 value: although software versions of the algorithms cannot fail
7168 any installed hardware versions can.
7171 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7172 this option is set, tolerate broken clients that send the negotiated
7173 protocol version number instead of the requested protocol version
7177 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7178 i.e. non-zero for export ciphersuites, zero otherwise.
7179 Previous versions had this flag inverted, inconsistent with
7180 rsa_tmp_cb (..._TMP_RSA_CB).
7181 [Bodo Moeller; problem reported by Amit Chopra]
7183 *) Add missing DSA library text string. Work around for some IIS
7184 key files with invalid SEQUENCE encoding.
7187 *) Add a document (doc/standards.txt) that list all kinds of standards
7188 and so on that are implemented in OpenSSL.
7191 *) Enhance c_rehash script. Old version would mishandle certificates
7192 with the same subject name hash and wouldn't handle CRLs at all.
7193 Added -fingerprint option to crl utility, to support new c_rehash
7197 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7200 *) Fix for SSL server purpose checking. Server checking was
7201 rejecting certificates which had extended key usage present
7202 but no ssl client purpose.
7203 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7205 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7206 is a little unclear about how a blank password is handled.
7207 Since the password in encoded as a BMPString with terminating
7208 double NULL a zero length password would end up as just the
7209 double NULL. However no password at all is different and is
7210 handled differently in the PKCS#12 key generation code. NS
7211 treats a blank password as zero length. MSIE treats it as no
7212 password on export: but it will try both on import. We now do
7213 the same: PKCS12_parse() tries zero length and no password if
7214 the password is set to "" or NULL (NULL is now a valid password:
7215 it wasn't before) as does the pkcs12 application.
7218 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7219 perror when PEM_read_bio_X509_REQ fails, the error message must
7220 be obtained from the error queue.
7223 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7224 it in ERR_remove_state if appropriate, and change ERR_get_state
7225 accordingly to avoid race conditions (this is necessary because
7226 thread_hash is no longer constant once set).
7229 *) Bugfix for linux-elf makefile.one.
7232 *) RSA_get_default_method() will now cause a default
7233 RSA_METHOD to be chosen if one doesn't exist already.
7234 Previously this was only set during a call to RSA_new()
7235 or RSA_new_method(NULL) meaning it was possible for
7236 RSA_get_default_method() to return NULL.
7239 *) Added native name translation to the existing DSO code
7240 that will convert (if the flag to do so is set) filenames
7241 that are sufficiently small and have no path information
7242 into a canonical native form. Eg. "blah" converted to
7243 "libblah.so" or "blah.dll" etc.
7246 *) New function ERR_error_string_n(e, buf, len) which is like
7247 ERR_error_string(e, buf), but writes at most 'len' bytes
7248 including the 0 terminator. For ERR_error_string_n, 'buf'
7250 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7252 *) CONF library reworked to become more general. A new CONF
7253 configuration file reader "class" is implemented as well as a
7254 new functions (NCONF_*, for "New CONF") to handle it. The now
7255 old CONF_* functions are still there, but are reimplemented to
7256 work in terms of the new functions. Also, a set of functions
7257 to handle the internal storage of the configuration data is
7258 provided to make it easier to write new configuration file
7259 reader "classes" (I can definitely see something reading a
7260 configuration file in XML format, for example), called _CONF_*,
7261 or "the configuration storage API"...
7263 The new configuration file reading functions are:
7265 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7266 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7268 NCONF_default, NCONF_WIN32
7270 NCONF_dump_fp, NCONF_dump_bio
7272 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7273 NCONF_new creates a new CONF object. This works in the same way
7274 as other interfaces in OpenSSL, like the BIO interface.
7275 NCONF_dump_* dump the internal storage of the configuration file,
7276 which is useful for debugging. All other functions take the same
7277 arguments as the old CONF_* functions wth the exception of the
7278 first that must be a `CONF *' instead of a `LHASH *'.
7280 To make it easer to use the new classes with the old CONF_* functions,
7281 the function CONF_set_default_method is provided.
7284 *) Add '-tls1' option to 'openssl ciphers', which was already
7285 mentioned in the documentation but had not been implemented.
7286 (This option is not yet really useful because even the additional
7287 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7290 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7291 OpenSSL-based applications) load shared libraries and bind to
7292 them in a portable way.
7293 [Geoff Thorpe, with contributions from Richard Levitte]
7295 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7297 *) Make sure _lrotl and _lrotr are only used with MSVC.
7299 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7300 (the default implementation of RAND_status).
7302 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7303 to '-clrext' (= clear extensions), as intended and documented.
7304 [Bodo Moeller; inconsistency pointed out by Michael Attili
7307 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7308 was larger than the MD block size.
7309 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7311 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7312 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7313 using the passed key: if the passed key was a private key the result
7314 of X509_print(), for example, would be to print out all the private key
7318 *) des_quad_cksum() byte order bug fix.
7319 [Ulf Möller, using the problem description in krb4-0.9.7, where
7320 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7322 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7324 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7326 *) For easily testing in shell scripts whether some command
7327 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7328 returns with exit code 0 iff no command of the given name is available.
7329 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7330 the output goes to stdout and nothing is printed to stderr.
7331 Additional arguments are always ignored.
7333 Since for each cipher there is a command of the same name,
7334 the 'no-cipher' compilation switches can be tested this way.
7336 ('openssl no-XXX' is not able to detect pseudo-commands such
7337 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7340 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7343 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7344 is set; it will be thrown away anyway because each handshake creates
7346 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7347 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7348 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7349 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7352 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7353 'Q' and 'R' lose their special meanings (quit/renegotiate).
7354 This is part of what -quiet does; unlike -quiet, -ign_eof
7355 does not suppress any output.
7358 *) Add compatibility options to the purpose and trust code. The
7359 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7360 accepts a certificate or CA, this was the previous behaviour,
7361 with all the associated security issues.
7363 X509_TRUST_COMPAT is the old trust behaviour: only and
7364 automatically trust self signed roots in certificate store. A
7365 new trust setting X509_TRUST_DEFAULT is used to specify that
7366 a purpose has no associated trust setting and it should instead
7367 use the value in the default purpose.
7370 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7371 and fix a memory leak.
7374 *) In util/mkerr.pl (which implements 'make errors'), preserve
7375 reason strings from the previous version of the .c file, as
7376 the default to have only downcase letters (and digits) in
7377 automatically generated reasons codes is not always appropriate.
7380 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7381 using strerror. Previously, ERR_reason_error_string() returned
7382 library names as reason strings for SYSerr; but SYSerr is a special
7383 case where small numbers are errno values, not library numbers.
7386 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7387 converts DSA parameters into DH parameters. (When creating parameters,
7388 DSA_generate_parameters is used.)
7391 *) Include 'length' (recommended exponent length) in C code generated
7392 by 'openssl dhparam -C'.
7395 *) The second argument to set_label in perlasm was already being used
7396 so couldn't be used as a "file scope" flag. Moved to third argument
7400 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7401 instead of RAND_bytes for encryption IVs and salts.
7404 *) Include RAND_status() into RAND_METHOD instead of implementing
7405 it only for md_rand.c Otherwise replacing the PRNG by calling
7406 RAND_set_rand_method would be impossible.
7409 *) Don't let DSA_generate_key() enter an infinite loop if the random
7410 number generation fails.
7413 *) New 'rand' application for creating pseudo-random output.
7416 *) Added configuration support for Linux/IA64
7417 [Rolf Haberrecker <rolf@suse.de>]
7419 *) Assembler module support for Mingw32.
7422 *) Shared library support for HPUX (in shlib/).
7423 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7425 *) Shared library support for Solaris gcc.
7426 [Lutz Behnke <behnke@trustcenter.de>]
7428 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7430 *) PKCS7_encrypt() was adding text MIME headers twice because they
7431 were added manually and by SMIME_crlf_copy().
7434 *) In bntest.c don't call BN_rand with zero bits argument.
7435 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7437 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7438 case was implemented. This caused BN_div_recp() to fail occasionally.
7441 *) Add an optional second argument to the set_label() in the perl
7442 assembly language builder. If this argument exists and is set
7443 to 1 it signals that the assembler should use a symbol whose
7444 scope is the entire file, not just the current function. This
7445 is needed with MASM which uses the format label:: for this scope.
7446 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7448 *) Change the ASN1 types so they are typedefs by default. Before
7449 almost all types were #define'd to ASN1_STRING which was causing
7450 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7454 *) Change names of new functions to the new get1/get0 naming
7455 convention: After 'get1', the caller owns a reference count
7456 and has to call ..._free; 'get0' returns a pointer to some
7457 data structure without incrementing reference counters.
7458 (Some of the existing 'get' functions increment a reference
7459 counter, some don't.)
7460 Similarly, 'set1' and 'add1' functions increase reference
7461 counters or duplicate objects.
7464 *) Allow for the possibility of temp RSA key generation failure:
7465 the code used to assume it always worked and crashed on failure.
7468 *) Fix potential buffer overrun problem in BIO_printf().
7469 [Ulf Möller, using public domain code by Patrick Powell; problem
7470 pointed out by David Sacerdote <das33@cornell.edu>]
7472 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7473 RAND_egd() and RAND_status(). In the command line application,
7474 the EGD socket can be specified like a seed file using RANDFILE
7478 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7479 Some CAs (e.g. Verisign) distribute certificates in this form.
7482 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7483 list to exclude them. This means that no special compilation option
7484 is needed to use anonymous DH: it just needs to be included in the
7488 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7489 EVP_MD_type. The old functionality is available in a new macro called
7490 EVP_MD_md(). Change code that uses it and update docs.
7493 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7494 where the 'void *' argument is replaced by a function pointer argument.
7495 Previously 'void *' was abused to point to functions, which works on
7496 many platforms, but is not correct. As these functions are usually
7497 called by macros defined in OpenSSL header files, most source code
7498 should work without changes.
7501 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7502 sections with information on -D... compiler switches used for
7503 compiling the library so that applications can see them. To enable
7504 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7505 must be defined. E.g.,
7506 #define OPENSSL_ALGORITHM_DEFINES
7507 #include <openssl/opensslconf.h>
7508 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7509 [Richard Levitte, Ulf and Bodo Möller]
7511 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7515 *) Change the 'other' type in certificate aux info to a STACK_OF
7516 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7517 the required ASN1 format: arbitrary types determined by an OID.
7520 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7521 argument to 'req'. This is not because the function is newer or
7522 better than others it just uses the work 'NEW' in the certificate
7523 request header lines. Some software needs this.
7526 *) Reorganise password command line arguments: now passwords can be
7527 obtained from various sources. Delete the PEM_cb function and make
7528 it the default behaviour: i.e. if the callback is NULL and the
7529 usrdata argument is not NULL interpret it as a null terminated pass
7530 phrase. If usrdata and the callback are NULL then the pass phrase
7531 is prompted for as usual.
7534 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7535 the support is automatically enabled. The resulting binaries will
7536 autodetect the card and use it if present.
7537 [Ben Laurie and Compaq Inc.]
7539 *) Work around for Netscape hang bug. This sends certificate request
7540 and server done in one record. Since this is perfectly legal in the
7541 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7542 the bugs/SSLv3 entry for more info.
7545 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7548 *) Add -rand argument to smime and pkcs12 applications and read/write
7552 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7555 *) Add command line password options to the remaining applications.
7558 *) Bug fix for BN_div_recp() for numerators with an even number of
7562 *) More tests in bntest.c, and changed test_bn output.
7565 *) ./config recognizes MacOS X now.
7568 *) Bug fix for BN_div() when the first words of num and divsor are
7569 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7572 *) Add support for various broken PKCS#8 formats, and command line
7573 options to produce them.
7576 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7577 get temporary BIGNUMs from a BN_CTX.
7580 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7584 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7585 include a #define from the old name to the new. The original intent
7586 was that statically linked binaries could for example just call
7587 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7588 link with digests. This never worked becayse SSLeay_add_all_digests()
7589 and SSLeay_add_all_ciphers() were in the same source file so calling
7590 one would link with the other. They are now in separate source files.
7593 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7596 *) Use a less unusual form of the Miller-Rabin primality test (it used
7597 a binary algorithm for exponentiation integrated into the Miller-Rabin
7598 loop, our standard modexp algorithms are faster).
7601 *) Support for the EBCDIC character set completed.
7602 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7604 *) Source code cleanups: use const where appropriate, eliminate casts,
7605 use void * instead of char * in lhash.
7608 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7609 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7610 this the server could overwrite ephemeral keys that the client
7614 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7615 using 50 iterations of the Rabin-Miller test.
7617 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7618 iterations of the Rabin-Miller test as required by the appendix
7619 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7620 As BN_is_prime_fasttest includes trial division, DSA parameter
7621 generation becomes much faster.
7623 This implies a change for the callback functions in DSA_is_prime
7624 and DSA_generate_parameters: The callback function is called once
7625 for each positive witness in the Rabin-Miller test, not just
7626 occasionally in the inner loop; and the parameters to the
7627 callback function now provide an iteration count for the outer
7628 loop rather than for the current invocation of the inner loop.
7629 DSA_generate_parameters additionally can call the callback
7630 function with an 'iteration count' of -1, meaning that a
7631 candidate has passed the trial division test (when q is generated
7632 from an application-provided seed, trial division is skipped).
7635 *) New function BN_is_prime_fasttest that optionally does trial
7636 division before starting the Rabin-Miller test and has
7637 an additional BN_CTX * argument (whereas BN_is_prime always
7638 has to allocate at least one BN_CTX).
7639 'callback(1, -1, cb_arg)' is called when a number has passed the
7640 trial division stage.
7643 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7647 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7650 *) New function BN_pseudo_rand().
7653 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7654 bignum version of BN_from_montgomery() with the working code from
7655 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7659 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7660 made it impossible to use the same SSL_SESSION data structure in
7661 SSL2 clients in multiple threads.
7664 *) The return value of RAND_load_file() no longer counts bytes obtained
7665 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7666 to seed the PRNG (previously an explicit byte count was required).
7667 [Ulf Möller, Bodo Möller]
7669 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7670 used (char *) instead of (void *) and had casts all over the place.
7673 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7676 *) Retain source code compatibility for BN_prime_checks macro:
7677 BN_is_prime(..., BN_prime_checks, ...) now uses
7678 BN_prime_checks_for_size to determine the appropriate number of
7679 Rabin-Miller iterations.
7682 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7683 DH_CHECK_P_NOT_SAFE_PRIME.
7684 (Check if this is true? OpenPGP calls them "strong".)
7687 *) Merge the functionality of "dh" and "gendh" programs into a new program
7688 "dhparam". The old programs are retained for now but will handle DH keys
7689 (instead of parameters) in future.
7692 *) Make the ciphers, s_server and s_client programs check the return values
7693 when a new cipher list is set.
7696 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7697 ciphers. Before when the 56bit ciphers were enabled the sorting was
7700 The syntax for the cipher sorting has been extended to support sorting by
7701 cipher-strength (using the strength_bits hard coded in the tables).
7702 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7704 Fix a bug in the cipher-command parser: when supplying a cipher command
7705 string with an "undefined" symbol (neither command nor alphanumeric
7706 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7707 an error is flagged.
7709 Due to the strength-sorting extension, the code of the
7710 ssl_create_cipher_list() function was completely rearranged. I hope that
7711 the readability was also increased :-)
7712 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7714 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7715 for the first serial number and places 2 in the serial number file. This
7716 avoids problems when the root CA is created with serial number zero and
7717 the first user certificate has the same issuer name and serial number
7721 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7722 the new code. Add documentation for this stuff.
7725 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7726 X509_*() to X509at_*() on the grounds that they don't handle X509
7727 structures and behave in an analagous way to the X509v3 functions:
7728 they shouldn't be called directly but wrapper functions should be used
7731 So we also now have some wrapper functions that call the X509at functions
7732 when passed certificate requests. (TO DO: similar things can be done with
7733 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7734 things. Some of these need some d2i or i2d and print functionality
7735 because they handle more complex structures.)
7738 *) Add missing #ifndefs that caused missing symbols when building libssl
7739 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7740 NO_RSA in ssl/s2*.c.
7741 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7743 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7744 has a return value which indicates the quality of the random data
7745 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7746 error queue. New function RAND_pseudo_bytes() generates output that is
7747 guaranteed to be unique but not unpredictable. RAND_add is like
7748 RAND_seed, but takes an extra argument for an entropy estimate
7749 (RAND_seed always assumes full entropy).
7752 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7753 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7754 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7755 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7756 false-positive rate of at most 2^-80 for random input.
7759 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7762 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7763 in the 0.9.5 release), this returns the chain
7764 from an X509_CTX structure with a dup of the stack and all
7765 the X509 reference counts upped: so the stack will exist
7766 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7769 Also make SSL_SESSION_print() print out the verify return
7773 *) Add manpage for the pkcs12 command. Also change the default
7774 behaviour so MAC iteration counts are used unless the new
7775 -nomaciter option is used. This improves file security and
7776 only older versions of MSIE (4.0 for example) need it.
7779 *) Honor the no-xxx Configure options when creating .DEF files.
7782 *) Add PKCS#10 attributes to field table: challengePassword,
7783 unstructuredName and unstructuredAddress. These are taken from
7784 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7785 international characters are used.
7787 More changes to X509_ATTRIBUTE code: allow the setting of types
7788 based on strings. Remove the 'loc' parameter when adding
7789 attributes because these will be a SET OF encoding which is sorted
7793 *) Initial changes to the 'req' utility to allow request generation
7794 automation. This will allow an application to just generate a template
7795 file containing all the field values and have req construct the
7798 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7799 used all over the place including certificate requests and PKCS#7
7800 structures. They are currently handled manually where necessary with
7801 some primitive wrappers for PKCS#7. The new functions behave in a
7802 manner analogous to the X509 extension functions: they allow
7803 attributes to be looked up by NID and added.
7805 Later something similar to the X509V3 code would be desirable to
7806 automatically handle the encoding, decoding and printing of the
7807 more complex types. The string types like challengePassword can
7808 be handled by the string table functions.
7810 Also modified the multi byte string table handling. Now there is
7811 a 'global mask' which masks out certain types. The table itself
7812 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7813 is useful when for example there is only one permissible type
7814 (as in countryName) and using the mask might result in no valid
7818 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7819 SSL_get_peer_finished to allow applications to obtain the latest
7820 Finished messages sent to the peer or expected from the peer,
7821 respectively. (SSL_get_peer_finished is usually the Finished message
7822 actually received from the peer, otherwise the protocol will be aborted.)
7824 As the Finished message are message digests of the complete handshake
7825 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7826 be used for external authentication procedures when the authentication
7827 provided by SSL/TLS is not desired or is not enough.
7830 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7831 the host supports BWX extension and if Compaq C is present on the
7832 $PATH. Just exploiting of the BWX extension results in 20-30%
7833 performance kick for some algorithms, e.g. DES and RC4 to mention
7834 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7838 *) Add support for MS "fast SGC". This is arguably a violation of the
7839 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7840 weak crypto and after checking the certificate is SGC a second one
7841 with strong crypto. MS SGC stops the first handshake after receiving
7842 the server certificate message and sends a second client hello. Since
7843 a server will typically do all the time consuming operations before
7844 expecting any further messages from the client (server key exchange
7845 is the most expensive) there is little difference between the two.
7847 To get OpenSSL to support MS SGC we have to permit a second client
7848 hello message after we have sent server done. In addition we have to
7849 reset the MAC if we do get this second client hello.
7852 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7853 if a DER encoded private key is RSA or DSA traditional format. Changed
7854 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7855 format DER encoded private key. Newer code should use PKCS#8 format which
7856 has the key type encoded in the ASN1 structure. Added DER private key
7857 support to pkcs8 application.
7860 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7861 ciphersuites has been selected (as required by the SSL 3/TLS 1
7862 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7863 is set, we interpret this as a request to violate the specification
7864 (the worst that can happen is a handshake failure, and 'correct'
7865 behaviour would result in a handshake failure anyway).
7868 *) In SSL_CTX_add_session, take into account that there might be multiple
7869 SSL_SESSION structures with the same session ID (e.g. when two threads
7870 concurrently obtain them from an external cache).
7871 The internal cache can handle only one SSL_SESSION with a given ID,
7872 so if there's a conflict, we now throw out the old one to achieve
7876 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7877 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7878 some routines that use cipher OIDs: some ciphers do not have OIDs
7879 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7883 *) Simplify the trust setting structure and code. Now we just have
7884 two sequences of OIDs for trusted and rejected settings. These will
7885 typically have values the same as the extended key usage extension
7886 and any application specific purposes.
7888 The trust checking code now has a default behaviour: it will just
7889 check for an object with the same NID as the passed id. Functions can
7890 be provided to override either the default behaviour or the behaviour
7891 for a given id. SSL client, server and email already have functions
7892 in place for compatibility: they check the NID and also return "trusted"
7893 if the certificate is self signed.
7896 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7897 traditional format into an EVP_PKEY structure.
7900 *) Add a password callback function PEM_cb() which either prompts for
7901 a password if usr_data is NULL or otherwise assumes it is a null
7902 terminated password. Allow passwords to be passed on command line
7903 environment or config files in a few more utilities.
7906 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7907 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7908 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7909 Update documentation.
7912 *) Support for ASN1 "NULL" type. This could be handled before by using
7913 ASN1_TYPE but there wasn't any function that would try to read a NULL
7914 and produce an error if it couldn't. For compatibility we also have
7915 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7916 don't allocate anything because they don't need to.
7919 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7921 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7923 *) Rebuild of the memory allocation routines used by OpenSSL code and
7924 possibly others as well. The purpose is to make an interface that
7925 provide hooks so anyone can build a separate set of allocation and
7926 deallocation routines to be used by OpenSSL, for example memory
7927 pool implementations, or something else, which was previously hard
7928 since Malloc(), Realloc() and Free() were defined as macros having
7929 the values malloc, realloc and free, respectively (except for Win32
7930 compilations). The same is provided for memory debugging code.
7931 OpenSSL already comes with functionality to find memory leaks, but
7932 this gives people a chance to debug other memory problems.
7934 With these changes, a new set of functions and macros have appeared:
7936 CRYPTO_set_mem_debug_functions() [F]
7937 CRYPTO_get_mem_debug_functions() [F]
7938 CRYPTO_dbg_set_options() [F]
7939 CRYPTO_dbg_get_options() [F]
7940 CRYPTO_malloc_debug_init() [M]
7942 The memory debug functions are NULL by default, unless the library
7943 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7944 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7945 gives the standard debugging functions that come with OpenSSL) or
7946 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7947 provided by the library user) must be used. When the standard
7948 debugging functions are used, CRYPTO_dbg_set_options can be used to
7949 request additional information:
7950 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7951 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7953 Also, things like CRYPTO_set_mem_functions will always give the
7954 expected result (the new set of functions is used for allocation
7955 and deallocation) at all times, regardless of platform and compiler
7958 To finish it up, some functions that were never use in any other
7959 way than through macros have a new API and new semantic:
7962 CRYPTO_dbg_realloc()
7965 All macros of value have retained their old syntax.
7966 [Richard Levitte and Bodo Moeller]
7968 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7969 ordering of SMIMECapabilities wasn't in "strength order" and there
7970 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7974 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7975 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7976 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7978 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7979 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7980 functionality to handle multipart/signed properly) and a utility
7981 called 'smime' to call all this stuff. This is based on code I
7982 originally wrote for Celo who have kindly allowed it to be
7983 included in OpenSSL.
7986 *) Add variants des_set_key_checked and des_set_key_unchecked of
7987 des_set_key (aka des_key_sched). Global variable des_check_key
7988 decides which of these is called by des_set_key; this way
7989 des_check_key behaves as it always did, but applications and
7990 the library itself, which was buggy for des_check_key == 1,
7991 have a cleaner way to pick the version they need.
7994 *) New function PKCS12_newpass() which changes the password of a
7998 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7999 dynamic mix. In both cases the ids can be used as an index into the
8000 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8001 functions so they accept a list of the field values and the
8002 application doesn't need to directly manipulate the X509_TRUST
8006 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8010 *) Modify the way the V3 extension code looks up extensions. This now
8011 works in a similar way to the object code: we have some "standard"
8012 extensions in a static table which is searched with OBJ_bsearch()
8013 and the application can add dynamic ones if needed. The file
8014 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8015 updated whenever a new extension is added to the core code and kept
8016 in ext_nid order. There is a simple program 'tabtest.c' which checks
8017 this. New extensions are not added too often so this file can readily
8018 be maintained manually.
8020 There are two big advantages in doing things this way. The extensions
8021 can be looked up immediately and no longer need to be "added" using
8022 X509V3_add_standard_extensions(): this function now does nothing.
8023 [Side note: I get *lots* of email saying the extension code doesn't
8024 work because people forget to call this function]
8025 Also no dynamic allocation is done unless new extensions are added:
8026 so if we don't add custom extensions there is no need to call
8027 X509V3_EXT_cleanup().
8030 *) Modify enc utility's salting as follows: make salting the default. Add a
8031 magic header, so unsalted files fail gracefully instead of just decrypting
8032 to garbage. This is because not salting is a big security hole, so people
8033 should be discouraged from doing it.
8036 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8037 digest to be passed on the command line but it only used this
8038 parameter when signing a certificate. Modified so all relevant
8039 operations are affected by the digest parameter including the
8040 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8041 DSA key was used because it didn't fix the digest.
8044 *) Initial certificate chain verify code. Currently tests the untrusted
8045 certificates for consistency with the verify purpose (which is set
8046 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8048 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8049 this is because it will reject chains with invalid extensions whereas
8050 every previous version of OpenSSL and SSLeay made no checks at all.
8052 Trust code: checks the root CA for the relevant trust settings. Trust
8053 settings have an initial value consistent with the verify purpose: e.g.
8054 if the verify purpose is for SSL client use it expects the CA to be
8055 trusted for SSL client use. However the default value can be changed to
8056 permit custom trust settings: one example of this would be to only trust
8057 certificates from a specific "secure" set of CAs.
8059 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8060 which should be used for version portability: especially since the
8061 verify structure is likely to change more often now.
8063 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8064 to set them. If not set then assume SSL clients will verify SSL servers
8067 Two new options to the verify program: -untrusted allows a set of
8068 untrusted certificates to be passed in and -purpose which sets the
8069 intended purpose of the certificate. If a purpose is set then the
8070 new chain verify code is used to check extension consistency.
8073 *) Support for the authority information access extension.
8076 *) Modify RSA and DSA PEM read routines to transparently handle
8077 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8078 public keys in a format compatible with certificate
8079 SubjectPublicKeyInfo structures. Unfortunately there were already
8080 functions called *_PublicKey_* which used various odd formats so
8081 these are retained for compatibility: however the DSA variants were
8082 never in a public release so they have been deleted. Changed dsa/rsa
8083 utilities to handle the new format: note no releases ever handled public
8084 keys so we should be OK.
8086 The primary motivation for this change is to avoid the same fiasco
8087 that dogs private keys: there are several incompatible private key
8088 formats some of which are standard and some OpenSSL specific and
8089 require various evil hacks to allow partial transparent handling and
8090 even then it doesn't work with DER formats. Given the option anything
8091 other than PKCS#8 should be dumped: but the other formats have to
8092 stay in the name of compatibility.
8094 With public keys and the benefit of hindsight one standard format
8095 is used which works with EVP_PKEY, RSA or DSA structures: though
8096 it clearly returns an error if you try to read the wrong kind of key.
8098 Added a -pubkey option to the 'x509' utility to output the public key.
8099 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8100 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8101 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8102 that do the same as the EVP_PKEY_assign_*() except they up the
8103 reference count of the added key (they don't "swallow" the
8107 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8108 CRLs would fail if the file contained no certificates or no CRLs:
8109 added a new function to read in both types and return the number
8110 read: this means that if none are read it will be an error. The
8111 DER versions of the certificate and CRL reader would always fail
8112 because it isn't possible to mix certificates and CRLs in DER format
8113 without choking one or the other routine. Changed this to just read
8114 a certificate: this is the best we can do. Also modified the code
8115 in apps/verify.c to take notice of return codes: it was previously
8116 attempting to read in certificates from NULL pointers and ignoring
8117 any errors: this is one reason why the cert and CRL reader seemed
8118 to work. It doesn't check return codes from the default certificate
8119 routines: these may well fail if the certificates aren't installed.
8122 *) Code to support otherName option in GeneralName.
8125 *) First update to verify code. Change the verify utility
8126 so it warns if it is passed a self signed certificate:
8127 for consistency with the normal behaviour. X509_verify
8128 has been modified to it will now verify a self signed
8129 certificate if *exactly* the same certificate appears
8130 in the store: it was previously impossible to trust a
8131 single self signed certificate. This means that:
8132 openssl verify ss.pem
8133 now gives a warning about a self signed certificate but
8134 openssl verify -CAfile ss.pem ss.pem
8138 *) For servers, store verify_result in SSL_SESSION data structure
8139 (and add it to external session representation).
8140 This is needed when client certificate verifications fails,
8141 but an application-provided verification callback (set by
8142 SSL_CTX_set_cert_verify_callback) allows accepting the session
8143 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8144 but returns 1): When the session is reused, we have to set
8145 ssl->verify_result to the appropriate error code to avoid
8147 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8149 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8150 case in PKCS7_dataInit() where the signed PKCS7 structure
8151 didn't contain any existing data because it was being created.
8152 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8154 *) Add a salt to the key derivation routines in enc.c. This
8155 forms the first 8 bytes of the encrypted file. Also add a
8156 -S option to allow a salt to be input on the command line.
8159 *) New function X509_cmp(). Oddly enough there wasn't a function
8160 to compare two certificates. We do this by working out the SHA1
8161 hash and comparing that. X509_cmp() will be needed by the trust
8165 *) SSL_get1_session() is like SSL_get_session(), but increments
8166 the reference count in the SSL_SESSION returned.
8167 [Geoff Thorpe <geoff@eu.c2.net>]
8169 *) Fix for 'req': it was adding a null to request attributes.
8170 Also change the X509_LOOKUP and X509_INFO code to handle
8171 certificate auxiliary information.
8174 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8178 *) Add the possibility to add extra information to the memory leak
8179 detecting output, to form tracebacks, showing from where each
8180 allocation was originated: CRYPTO_push_info("constant string") adds
8181 the string plus current file name and line number to a per-thread
8182 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8183 is like calling CYRPTO_pop_info() until the stack is empty.
8184 Also updated memory leak detection code to be multi-thread-safe.
8187 *) Add options -text and -noout to pkcs7 utility and delete the
8188 encryption options which never did anything. Update docs.
8191 *) Add options to some of the utilities to allow the pass phrase
8192 to be included on either the command line (not recommended on
8193 OSes like Unix) or read from the environment. Update the
8194 manpages and fix a few bugs.
8197 *) Add a few manpages for some of the openssl commands.
8200 *) Fix the -revoke option in ca. It was freeing up memory twice,
8201 leaking and not finding already revoked certificates.
8204 *) Extensive changes to support certificate auxiliary information.
8205 This involves the use of X509_CERT_AUX structure and X509_AUX
8206 functions. An X509_AUX function such as PEM_read_X509_AUX()
8207 can still read in a certificate file in the usual way but it
8208 will also read in any additional "auxiliary information". By
8209 doing things this way a fair degree of compatibility can be
8210 retained: existing certificates can have this information added
8211 using the new 'x509' options.
8213 Current auxiliary information includes an "alias" and some trust
8214 settings. The trust settings will ultimately be used in enhanced
8215 certificate chain verification routines: currently a certificate
8216 can only be trusted if it is self signed and then it is trusted
8220 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8221 The problem was that one of the replacement routines had not been working
8222 since SSLeay releases. For now the offending routine has been replaced
8223 with non-optimised assembler. Even so, this now gives around 95%
8224 performance improvement for 1024 bit RSA signs.
8227 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8228 handling. Most clients have the effective key size in bits equal to
8229 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8230 A few however don't do this and instead use the size of the decrypted key
8231 to determine the RC2 key length and the AlgorithmIdentifier to determine
8232 the effective key length. In this case the effective key length can still
8233 be 40 bits but the key length can be 168 bits for example. This is fixed
8234 by manually forcing an RC2 key into the EVP_PKEY structure because the
8235 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8236 the key length and effective key length are equal.
8239 *) Add a bunch of functions that should simplify the creation of
8240 X509_NAME structures. Now you should be able to do:
8241 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8242 and have it automatically work out the correct field type and fill in
8243 the structures. The more adventurous can try:
8244 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8245 and it will (hopefully) work out the correct multibyte encoding.
8248 *) Change the 'req' utility to use the new field handling and multibyte
8249 copy routines. Before the DN field creation was handled in an ad hoc
8250 way in req, ca, and x509 which was rather broken and didn't support
8251 BMPStrings or UTF8Strings. Since some software doesn't implement
8252 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8253 using the dirstring_type option. See the new comment in the default
8254 openssl.cnf for more info.
8257 *) Make crypto/rand/md_rand.c more robust:
8258 - Assure unique random numbers after fork().
8259 - Make sure that concurrent threads access the global counter and
8260 md serializably so that we never lose entropy in them
8261 or use exactly the same state in multiple threads.
8262 Access to the large state is not always serializable because
8263 the additional locking could be a performance killer, and
8264 md should be large enough anyway.
8267 *) New file apps/app_rand.c with commonly needed functionality
8268 for handling the random seed file.
8270 Use the random seed file in some applications that previously did not:
8272 dsaparam -genkey (which also ignored its '-rand' option),
8275 x509 (when signing).
8276 Except on systems with /dev/urandom, it is crucial to have a random
8277 seed file at least for key creation, DSA signing, and for DH exchanges;
8278 for RSA signatures we could do without one.
8280 gendh and gendsa (unlike genrsa) used to read only the first byte
8281 of each file listed in the '-rand' option. The function as previously
8282 found in genrsa is now in app_rand.c and is used by all programs
8283 that support '-rand'.
8286 *) In RAND_write_file, use mode 0600 for creating files;
8287 don't just chmod when it may be too late.
8290 *) Report an error from X509_STORE_load_locations
8291 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8294 *) New function ASN1_mbstring_copy() this copies a string in either
8295 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8296 into an ASN1_STRING type. A mask of permissible types is passed
8297 and it chooses the "minimal" type to use or an error if not type
8301 *) Add function equivalents to the various macros in asn1.h. The old
8302 macros are retained with an M_ prefix. Code inside the library can
8303 use the M_ macros. External code (including the openssl utility)
8304 should *NOT* in order to be "shared library friendly".
8307 *) Add various functions that can check a certificate's extensions
8308 to see if it usable for various purposes such as SSL client,
8309 server or S/MIME and CAs of these types. This is currently
8310 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8311 verification. Also added a -purpose flag to x509 utility to
8312 print out all the purposes.
8315 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8319 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8320 for, obtain and decode and extension and obtain its critical flag.
8321 This allows all the necessary extension code to be handled in a
8322 single function call.
8325 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8326 platforms. See crypto/rc4/rc4_enc.c for further details.
8329 *) New -noout option to asn1parse. This causes no output to be produced
8330 its main use is when combined with -strparse and -out to extract data
8331 from a file (which may not be in ASN.1 format).
8334 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8335 when producing the local key id.
8336 [Richard Levitte <levitte@stacken.kth.se>]
8338 *) New option -dhparam in s_server. This allows a DH parameter file to be
8339 stated explicitly. If it is not stated then it tries the first server
8340 certificate file. The previous behaviour hard coded the filename
8344 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8345 a public key to be input or output. For example:
8346 openssl rsa -in key.pem -pubout -out pubkey.pem
8347 Also added necessary DSA public key functions to handle this.
8350 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8351 in the message. This was handled by allowing
8352 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8353 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8355 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8356 to the end of the strings whereas this didn't. This would cause problems
8357 if strings read with d2i_ASN1_bytes() were later modified.
8358 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8360 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8361 data and it contains EOF it will end up returning an error. This is
8362 caused by input 46 bytes long. The cause is due to the way base64
8363 BIOs find the start of base64 encoded data. They do this by trying a
8364 trial decode on each line until they find one that works. When they
8365 do a flag is set and it starts again knowing it can pass all the
8366 data directly through the decoder. Unfortunately it doesn't reset
8367 the context it uses. This means that if EOF is reached an attempt
8368 is made to pass two EOFs through the context and this causes the
8369 resulting error. This can also cause other problems as well. As is
8370 usual with these problems it takes *ages* to find and the fix is
8371 trivial: move one line.
8372 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8374 *) Ugly workaround to get s_client and s_server working under Windows. The
8375 old code wouldn't work because it needed to select() on sockets and the
8376 tty (for keypresses and to see if data could be written). Win32 only
8377 supports select() on sockets so we select() with a 1s timeout on the
8378 sockets and then see if any characters are waiting to be read, if none
8379 are present then we retry, we also assume we can always write data to
8380 the tty. This isn't nice because the code then blocks until we've
8381 received a complete line of data and it is effectively polling the
8382 keyboard at 1s intervals: however it's quite a bit better than not
8383 working at all :-) A dedicated Windows application might handle this
8384 with an event loop for example.
8387 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8388 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8389 will be called when RSA_sign() and RSA_verify() are used. This is useful
8390 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8391 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8392 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8393 This necessitated the support of an extra signature type NID_md5_sha1
8394 for SSL signatures and modifications to the SSL library to use it instead
8395 of calling RSA_public_decrypt() and RSA_private_encrypt().
8398 *) Add new -verify -CAfile and -CApath options to the crl program, these
8399 will lookup a CRL issuers certificate and verify the signature in a
8400 similar way to the verify program. Tidy up the crl program so it
8401 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8402 less strict. It will now permit CRL extensions even if it is not
8403 a V2 CRL: this will allow it to tolerate some broken CRLs.
8406 *) Initialize all non-automatic variables each time one of the openssl
8407 sub-programs is started (this is necessary as they may be started
8408 multiple times from the "OpenSSL>" prompt).
8409 [Lennart Bang, Bodo Moeller]
8411 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8412 removing all other RSA functionality (this is what NO_RSA does). This
8413 is so (for example) those in the US can disable those operations covered
8414 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8418 *) Non-copying interface to BIO pairs.
8419 (still largely untested)
8422 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8423 ASCII string. This was handled independently in various places before.
8426 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8427 UTF8 strings a character at a time.
8430 *) Use client_version from client hello to select the protocol
8431 (s23_srvr.c) and for RSA client key exchange verification
8432 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8435 *) Add various utility functions to handle SPKACs, these were previously
8436 handled by poking round in the structure internals. Added new function
8437 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8438 print, verify and generate SPKACs. Based on an original idea from
8439 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8442 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8445 *) Allow the config file extension section to be overwritten on the
8446 command line. Based on an original idea from Massimiliano Pala
8447 <madwolf@comune.modena.it>. The new option is called -extensions
8448 and can be applied to ca, req and x509. Also -reqexts to override
8449 the request extensions in req and -crlexts to override the crl extensions
8453 *) Add new feature to the SPKAC handling in ca. Now you can include
8454 the same field multiple times by preceding it by "XXXX." for example:
8457 this is the same syntax as used in the req config file.
8460 *) Allow certificate extensions to be added to certificate requests. These
8461 are specified in a 'req_extensions' option of the req section of the
8462 config file. They can be printed out with the -text option to req but
8463 are otherwise ignored at present.
8466 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8467 data read consists of only the final block it would not decrypted because
8468 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8469 A misplaced 'break' also meant the decrypted final block might not be
8470 copied until the next read.
8473 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8474 a few extra parameters to the DH structure: these will be useful if
8475 for example we want the value of 'q' or implement X9.42 DH.
8478 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8479 provides hooks that allow the default DSA functions or functions on a
8480 "per key" basis to be replaced. This allows hardware acceleration and
8481 hardware key storage to be handled without major modification to the
8482 library. Also added low level modexp hooks and CRYPTO_EX structure and
8483 associated functions.
8486 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8487 as "read only": it can't be written to and the buffer it points to will
8488 not be freed. Reading from a read only BIO is much more efficient than
8489 a normal memory BIO. This was added because there are several times when
8490 an area of memory needs to be read from a BIO. The previous method was
8491 to create a memory BIO and write the data to it, this results in two
8492 copies of the data and an O(n^2) reading algorithm. There is a new
8493 function BIO_new_mem_buf() which creates a read only memory BIO from
8494 an area of memory. Also modified the PKCS#7 routines to use read only
8498 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8499 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8500 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8501 but a retry condition occured while trying to read the rest.
8504 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8505 NID_pkcs7_encrypted by default: this was wrong since this should almost
8506 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8507 the encrypted data type: this is a more sensible place to put it and it
8508 allows the PKCS#12 code to be tidied up that duplicated this
8512 *) Changed obj_dat.pl script so it takes its input and output files on
8513 the command line. This should avoid shell escape redirection problems
8517 *) Initial support for certificate extension requests, these are included
8518 in things like Xenroll certificate requests. Included functions to allow
8519 extensions to be obtained and added.
8522 *) -crlf option to s_client and s_server for sending newlines as
8523 CRLF (as required by many protocols).
8526 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8528 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8529 [Ralf S. Engelschall]
8531 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8532 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8534 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8538 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8539 DH parameters/keys (q is lost during that conversion, but the resulting
8540 DH parameters contain its length).
8542 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8543 much faster than DH_generate_parameters (which creates parameters
8544 where p = 2*q + 1), and also the smaller q makes DH computations
8545 much more efficient (160-bit exponentiation instead of 1024-bit
8546 exponentiation); so this provides a convenient way to support DHE
8547 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8548 utter importance to use
8549 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8551 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8552 when such DH parameters are used, because otherwise small subgroup
8553 attacks may become possible!
8556 *) Avoid memory leak in i2d_DHparams.
8559 *) Allow the -k option to be used more than once in the enc program:
8560 this allows the same encrypted message to be read by multiple recipients.
8563 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8564 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8565 it will always use the numerical form of the OID, even if it has a short
8569 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8570 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8571 otherwise bn_mod_exp was called. In the case of hardware keys for example
8572 no private key components need be present and it might store extra data
8573 in the RSA structure, which cannot be accessed from bn_mod_exp.
8574 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8575 private key operations.
8578 *) Added support for SPARC Linux.
8581 *) pem_password_cb function type incompatibly changed from
8582 typedef int pem_password_cb(char *buf, int size, int rwflag);
8584 ....(char *buf, int size, int rwflag, void *userdata);
8585 so that applications can pass data to their callbacks:
8586 The PEM[_ASN1]_{read,write}... functions and macros now take an
8587 additional void * argument, which is just handed through whenever
8588 the password callback is called.
8589 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8591 New function SSL_CTX_set_default_passwd_cb_userdata.
8593 Compatibility note: As many C implementations push function arguments
8594 onto the stack in reverse order, the new library version is likely to
8595 interoperate with programs that have been compiled with the old
8596 pem_password_cb definition (PEM_whatever takes some data that
8597 happens to be on the stack as its last argument, and the callback
8598 just ignores this garbage); but there is no guarantee whatsoever that
8601 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8602 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8603 problems not only on Windows, but also on some Unix platforms.
8604 To avoid problematic command lines, these definitions are now in an
8605 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8606 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8609 *) MIPS III/IV assembler module is reimplemented.
8612 *) More DES library cleanups: remove references to srand/rand and
8613 delete an unused file.
8616 *) Add support for the the free Netwide assembler (NASM) under Win32,
8617 since not many people have MASM (ml) and it can be hard to obtain.
8618 This is currently experimental but it seems to work OK and pass all
8619 the tests. Check out INSTALL.W32 for info.
8622 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8623 without temporary keys kept an extra copy of the server key,
8624 and connections with temporary keys did not free everything in case
8628 *) New function RSA_check_key and new openssl rsa option -check
8629 for verifying the consistency of RSA keys.
8630 [Ulf Moeller, Bodo Moeller]
8632 *) Various changes to make Win32 compile work:
8633 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8634 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8635 comparison" warnings.
8636 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8639 *) Add a debugging option to PKCS#5 v2 key generation function: when
8640 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8641 derived keys are printed to stderr.
8644 *) Copy the flags in ASN1_STRING_dup().
8645 [Roman E. Pavlov <pre@mo.msk.ru>]
8647 *) The x509 application mishandled signing requests containing DSA
8648 keys when the signing key was also DSA and the parameters didn't match.
8650 It was supposed to omit the parameters when they matched the signing key:
8651 the verifying software was then supposed to automatically use the CA's
8652 parameters if they were absent from the end user certificate.
8654 Omitting parameters is no longer recommended. The test was also
8655 the wrong way round! This was probably due to unusual behaviour in
8656 EVP_cmp_parameters() which returns 1 if the parameters match.
8657 This meant that parameters were omitted when they *didn't* match and
8658 the certificate was useless. Certificates signed with 'ca' didn't have
8660 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8662 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8663 The interface is as follows:
8664 Applications can use
8665 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8666 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8667 "off" is now the default.
8668 The library internally uses
8669 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8670 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8671 to disable memory-checking temporarily.
8673 Some inconsistent states that previously were possible (and were
8674 even the default) are now avoided.
8676 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8677 with each memory chunk allocated; this is occasionally more helpful
8678 than just having a counter.
8680 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8682 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8686 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8687 which largely parallels "options", but is for changing API behaviour,
8688 whereas "options" are about protocol behaviour.
8689 Initial "mode" flags are:
8691 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8692 a single record has been written.
8693 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8694 retries use the same buffer location.
8695 (But all of the contents must be
8699 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8702 *) Fix problems with no-hmac etc.
8703 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8705 *) New functions RSA_get_default_method(), RSA_set_method() and
8706 RSA_get_method(). These allows replacement of RSA_METHODs without having
8707 to mess around with the internals of an RSA structure.
8710 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8711 Also really enable memory leak checks in openssl.c and in some
8713 [Chad C. Mulligan, Bodo Moeller]
8715 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8716 up the length of negative integers. This has now been simplified to just
8717 store the length when it is first determined and use it later, rather
8718 than trying to keep track of where data is copied and updating it to
8720 [Steve Henson, reported by Brien Wheeler
8721 <bwheeler@authentica-security.com>]
8723 *) Add a new function PKCS7_signatureVerify. This allows the verification
8724 of a PKCS#7 signature but with the signing certificate passed to the
8725 function itself. This contrasts with PKCS7_dataVerify which assumes the
8726 certificate is present in the PKCS#7 structure. This isn't always the
8727 case: certificates can be omitted from a PKCS#7 structure and be
8728 distributed by "out of band" means (such as a certificate database).
8731 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8732 function prototypes in pem.h, also change util/mkdef.pl to add the
8733 necessary function names.
8736 *) mk1mf.pl (used by Windows builds) did not properly read the
8737 options set by Configure in the top level Makefile, and Configure
8738 was not even able to write more than one option correctly.
8739 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8742 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8743 file to be loaded from a BIO or FILE pointer. The BIO version will
8744 for example allow memory BIOs to contain config info.
8747 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8748 Whoever hopes to achieve shared-library compatibility across versions
8749 must use this, not the compile-time macro.
8750 (Exercise 0.9.4: Which is the minimum library version required by
8752 Note: All this applies only to multi-threaded programs, others don't
8756 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8757 through a BIO pair triggered the default case, i.e.
8758 SSLerr(...,SSL_R_UNKNOWN_STATE).
8761 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8762 can use the SSL library even if none of the specific BIOs is
8766 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8767 for the encoded length.
8768 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8770 *) Add initial documentation of the X509V3 functions.
8773 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8774 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8775 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8776 secure PKCS#8 private key format with a high iteration count.
8779 *) Fix determination of Perl interpreter: A perl or perl5
8780 _directory_ in $PATH was also accepted as the interpreter.
8781 [Ralf S. Engelschall]
8783 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8784 wrong with it but it was very old and did things like calling
8785 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8789 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8790 to use the new extension code.
8793 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8794 with macros. This should make it easier to change their form, add extra
8795 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8799 *) Add to configuration table a new entry that can specify an alternative
8800 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8801 according to Mark Crispin <MRC@Panda.COM>.
8805 *) DES CBC did not update the IV. Weird.
8808 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8809 Changing the behaviour of the former might break existing programs --
8810 where IV updating is needed, des_ncbc_encrypt can be used.
8813 *) When bntest is run from "make test" it drives bc to check its
8814 calculations, as well as internally checking them. If an internal check
8815 fails, it needs to cause bc to give a non-zero result or make test carries
8816 on without noticing the failure. Fixed.
8819 *) DES library cleanups.
8822 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8823 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8824 ciphers. NOTE: although the key derivation function has been verified
8825 against some published test vectors it has not been extensively tested
8826 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8830 *) Instead of "mkdir -p", which is not fully portable, use new
8831 Perl script "util/mkdir-p.pl".
8834 *) Rewrite the way password based encryption (PBE) is handled. It used to
8835 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8836 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8837 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8838 the 'parameter' field of the AlgorithmIdentifier is passed to the
8839 underlying key generation function so it must do its own ASN1 parsing.
8840 This has also changed the EVP_PBE_CipherInit() function which now has a
8841 'parameter' argument instead of literal salt and iteration count values
8842 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8845 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8846 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8847 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8848 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8849 value was just used as a "magic string" and not used directly its
8850 value doesn't matter.
8853 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8857 *) "linux-sparc64" configuration (ultrapenguin).
8858 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8859 "linux-sparc" configuration.
8860 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8862 *) config now generates no-xxx options for missing ciphers.
8865 *) Support the EBCDIC character set (work in progress).
8866 File ebcdic.c not yet included because it has a different license.
8867 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8869 *) Support BS2000/OSD-POSIX.
8870 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8872 *) Make callbacks for key generation use void * instead of char *.
8875 *) Make S/MIME samples compile (not yet tested).
8878 *) Additional typesafe stacks.
8881 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8885 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8887 *) New configuration variant "sco5-gcc".
8889 *) Updated some demos.
8890 [Sean O Riordain, Wade Scholine]
8892 *) Add missing BIO_free at exit of pkcs12 application.
8895 *) Fix memory leak in conf.c.
8898 *) Updates for Win32 to assembler version of MD5.
8901 *) Set #! path to perl in apps/der_chop to where we found it
8902 instead of using a fixed path.
8905 *) SHA library changes for irix64-mips4-cc.
8908 *) Improvements for VMS support.
8912 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8914 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8915 This also avoids the problems with SC4.2 and unpatched SC5.
8916 [Andy Polyakov <appro@fy.chalmers.se>]
8918 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8919 These are required because of the typesafe stack would otherwise break
8920 existing code. If old code used a structure member which used to be STACK
8921 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8922 sk_num or sk_value it would produce an error because the num, data members
8923 are not present in STACK_OF. Now it just produces a warning. sk_set
8924 replaces the old method of assigning a value to sk_value
8925 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8926 that does this will no longer work (and should use sk_set instead) but
8927 this could be regarded as a "questionable" behaviour anyway.
8930 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8931 correctly handle encrypted S/MIME data.
8934 *) Change type of various DES function arguments from des_cblock
8935 (which means, in function argument declarations, pointer to char)
8936 to des_cblock * (meaning pointer to array with 8 char elements),
8937 which allows the compiler to do more typechecking; it was like
8938 that back in SSLeay, but with lots of ugly casts.
8940 Introduce new type const_des_cblock.
8943 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8944 problems: find RecipientInfo structure that matches recipient certificate
8945 and initialise the ASN1 structures properly based on passed cipher.
8948 *) Belatedly make the BN tests actually check the results.
8951 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8952 to and from BNs: it was completely broken. New compilation option
8953 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8954 key elements as negative integers.
8957 *) Reorganize and speed up MD5.
8958 [Andy Polyakov <appro@fy.chalmers.se>]
8961 [Richard Levitte <richard@levitte.org>]
8963 *) New option -out to asn1parse to allow the parsed structure to be
8964 output to a file. This is most useful when combined with the -strparse
8965 option to examine the output of things like OCTET STRINGS.
8968 *) Make SSL library a little more fool-proof by not requiring any longer
8969 that SSL_set_{accept,connect}_state be called before
8970 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8971 in many applications because usually everything *appeared* to work as
8972 intended anyway -- now it really works as intended).
8975 *) Move openssl.cnf out of lib/.
8978 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8979 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8980 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8981 [Ralf S. Engelschall]
8983 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8984 handle PKCS#7 enveloped data properly.
8985 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8987 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8988 copying pointers. The cert_st handling is changed by this in
8989 various ways (and thus what used to be known as ctx->default_cert
8990 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8991 any longer when s->cert does not give us what we need).
8992 ssl_cert_instantiate becomes obsolete by this change.
8993 As soon as we've got the new code right (possibly it already is?),
8994 we have solved a couple of bugs of the earlier code where s->cert
8995 was used as if it could not have been shared with other SSL structures.
8997 Note that using the SSL API in certain dirty ways now will result
8998 in different behaviour than observed with earlier library versions:
8999 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9000 does not influence s as it used to.
9002 In order to clean up things more thoroughly, inside SSL_SESSION
9003 we don't use CERT any longer, but a new structure SESS_CERT
9004 that holds per-session data (if available); currently, this is
9005 the peer's certificate chain and, for clients, the server's certificate
9006 and temporary key. CERT holds only those values that can have
9007 meaningful defaults in an SSL_CTX.
9010 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9011 from the internal representation. Various PKCS#7 fixes: remove some
9012 evil casts and set the enc_dig_alg field properly based on the signing
9016 *) Allow PKCS#12 password to be set from the command line or the
9017 environment. Let 'ca' get its config file name from the environment
9018 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9022 *) Allow certificate policies extension to use an IA5STRING for the
9023 organization field. This is contrary to the PKIX definition but
9024 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9028 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9029 without disallowing inline assembler and the like for non-pedantic builds.
9032 *) Support Borland C++ builder.
9033 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9038 *) SHA-1 cleanups and performance enhancements.
9039 [Andy Polyakov <appro@fy.chalmers.se>]
9041 *) Sparc v8plus assembler for the bignum library.
9042 [Andy Polyakov <appro@fy.chalmers.se>]
9044 *) Accept any -xxx and +xxx compiler options in Configure.
9047 *) Update HPUX configuration.
9050 *) Add missing sk_<type>_unshift() function to safestack.h
9051 [Ralf S. Engelschall]
9053 *) New function SSL_CTX_use_certificate_chain_file that sets the
9054 "extra_cert"s in addition to the certificate. (This makes sense
9055 only for "PEM" format files, as chains as a whole are not
9059 *) Support verify_depth from the SSL API.
9060 x509_vfy.c had what can be considered an off-by-one-error:
9061 Its depth (which was not part of the external interface)
9062 was actually counting the number of certificates in a chain;
9063 now it really counts the depth.
9066 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9067 instead of X509err, which often resulted in confusing error
9068 messages since the error codes are not globally unique
9069 (e.g. an alleged error in ssl3_accept when a certificate
9070 didn't match the private key).
9072 *) New function SSL_CTX_set_session_id_context that allows to set a default
9073 value (so that you don't need SSL_set_session_id_context for each
9074 connection using the SSL_CTX).
9077 *) OAEP decoding bug fix.
9080 *) Support INSTALL_PREFIX for package builders, as proposed by
9084 *) New Configure options "threads" and "no-threads". For systems
9085 where the proper compiler options are known (currently Solaris
9086 and Linux), "threads" is the default.
9089 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9092 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9093 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9094 such as /usr/local/bin.
9097 *) "make linux-shared" to build shared libraries.
9098 [Niels Poppe <niels@netbox.org>]
9100 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9103 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9104 extension adding in x509 utility.
9107 *) Remove NOPROTO sections and error code comments.
9110 *) Partial rewrite of the DEF file generator to now parse the ANSI
9114 *) New Configure options --prefix=DIR and --openssldir=DIR.
9117 *) Complete rewrite of the error code script(s). It is all now handled
9118 by one script at the top level which handles error code gathering,
9119 header rewriting and C source file generation. It should be much better
9120 than the old method: it now uses a modified version of Ulf's parser to
9121 read the ANSI prototypes in all header files (thus the old K&R definitions
9122 aren't needed for error creation any more) and do a better job of
9123 translating function codes into names. The old 'ASN1 error code imbedded
9124 in a comment' is no longer necessary and it doesn't use .err files which
9125 have now been deleted. Also the error code call doesn't have to appear all
9126 on one line (which resulted in some large lines...).
9129 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9132 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9133 0 (which usually indicates a closed connection), but continue reading.
9136 *) Fix some race conditions.
9139 *) Add support for CRL distribution points extension. Add Certificate
9140 Policies and CRL distribution points documentation.
9143 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9146 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9147 8 of keying material. Merlin has also confirmed interop with this fix
9148 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9149 [Merlin Hughes <merlin@baltimore.ie>]
9151 *) Fix lots of warnings.
9152 [Richard Levitte <levitte@stacken.kth.se>]
9154 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9155 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9156 [Richard Levitte <levitte@stacken.kth.se>]
9158 *) Fix problems with sizeof(long) == 8.
9159 [Andy Polyakov <appro@fy.chalmers.se>]
9161 *) Change functions to ANSI C.
9164 *) Fix typos in error codes.
9165 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9167 *) Remove defunct assembler files from Configure.
9170 *) SPARC v8 assembler BIGNUM implementation.
9171 [Andy Polyakov <appro@fy.chalmers.se>]
9173 *) Support for Certificate Policies extension: both print and set.
9174 Various additions to support the r2i method this uses.
9177 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9178 return a const string when you are expecting an allocated buffer.
9181 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9182 types DirectoryString and DisplayText.
9185 *) Add code to allow r2i extensions to access the configuration database,
9186 add an LHASH database driver and add several ctx helper functions.
9189 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9190 fail when they extended the size of a BIGNUM.
9193 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9194 support typesafe stack.
9197 *) Fix typo in SSL_[gs]et_options().
9198 [Nils Frostberg <nils@medcom.se>]
9200 *) Delete various functions and files that belonged to the (now obsolete)
9201 old X509V3 handling code.
9204 *) New Configure option "rsaref".
9207 *) Don't auto-generate pem.h.
9210 *) Introduce type-safe ASN.1 SETs.
9213 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9214 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9216 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9217 that links with OpenSSL (well at least cause lots of warnings), but fear
9218 not: the conversion is trivial, and it eliminates loads of evil casts. A
9219 few STACKed things have been converted already. Feel free to convert more.
9220 In the fullness of time, I'll do away with the STACK type altogether.
9223 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9224 specified in <certfile> by updating the entry in the index.txt file.
9225 This way one no longer has to edit the index.txt file manually for
9226 revoking a certificate. The -revoke option does the gory details now.
9227 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9229 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9230 `-text' option at all and this way the `-noout -text' combination was
9231 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9232 [Ralf S. Engelschall]
9234 *) Make sure a corresponding plain text error message exists for the
9235 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9236 verify callback function determined that a certificate was revoked.
9237 [Ralf S. Engelschall]
9239 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9240 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9241 all available cipers including rc5, which was forgotten until now.
9242 In order to let the testing shell script know which algorithms
9243 are available, a new (up to now undocumented) command
9244 "openssl list-cipher-commands" is used.
9247 *) Bugfix: s_client occasionally would sleep in select() when
9248 it should have checked SSL_pending() first.
9251 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9252 the raw DSA values prior to ASN.1 encoding.
9255 *) Tweaks to Configure
9256 [Niels Poppe <niels@netbox.org>]
9258 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9262 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9265 *) New config option to avoid instructions that are illegal on the 80386.
9266 The default code is faster, but requires at least a 486.
9269 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9270 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9271 same as SSL2_VERSION anyway.
9274 *) New "-showcerts" option for s_client.
9277 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9278 application. Various cleanups and fixes.
9281 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9282 modify error routines to work internally. Add error codes and PBE init
9283 to library startup routines.
9286 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9287 packing functions to asn1 and evp. Changed function names and error
9288 codes along the way.
9291 *) PKCS12 integration: and so it begins... First of several patches to
9292 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9293 objects to objects.h
9296 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9297 and display support for Thawte strong extranet extension.
9300 *) Add LinuxPPC support.
9301 [Jeff Dubrule <igor@pobox.org>]
9303 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9304 bn_div_words in alpha.s.
9305 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9307 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9308 OAEP isn't supported when OpenSSL is built with RSAref.
9309 [Ulf Moeller <ulf@fitug.de>]
9311 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9312 so they no longer are missing under -DNOPROTO.
9313 [Soren S. Jorvang <soren@t.dk>]
9316 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9318 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9319 doesn't work when the session is reused. Coming soon!
9322 *) Fix a security hole, that allows sessions to be reused in the wrong
9323 context thus bypassing client cert protection! All software that uses
9324 client certs and session caches in multiple contexts NEEDS PATCHING to
9325 allow session reuse! A fuller solution is in the works.
9326 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9328 *) Some more source tree cleanups (removed obsolete files
9329 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9330 permission on "config" script to be executable) and a fix for the INSTALL
9332 [Ulf Moeller <ulf@fitug.de>]
9334 *) Remove some legacy and erroneous uses of malloc, free instead of
9336 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9338 *) Make rsa_oaep_test return non-zero on error.
9339 [Ulf Moeller <ulf@fitug.de>]
9341 *) Add support for native Solaris shared libraries. Configure
9342 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9343 if someone would make that last step automatic.
9344 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9346 *) ctx_size was not built with the right compiler during "make links". Fixed.
9349 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9350 except NULL ciphers". This means the default cipher list will no longer
9351 enable NULL ciphers. They need to be specifically enabled e.g. with
9352 the string "DEFAULT:eNULL".
9355 *) Fix to RSA private encryption routines: if p < q then it would
9356 occasionally produce an invalid result. This will only happen with
9357 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9360 *) Be less restrictive and allow also `perl util/perlpath.pl
9361 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9362 because this way one can also use an interpreter named `perl5' (which is
9363 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9364 installed as `perl').
9365 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9367 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9368 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9370 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9371 advapi32.lib to Win32 build and change the pem test comparision
9372 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9373 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9374 and crypto/des/ede_cbcm_enc.c.
9377 *) DES quad checksum was broken on big-endian architectures. Fixed.
9380 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9381 Win32 test batch file so it (might) work again. The Win32 test batch file
9382 is horrible: I feel ill....
9385 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9386 in e_os.h. Audit of header files to check ANSI and non ANSI
9387 sections: 10 functions were absent from non ANSI section and not exported
9388 from Windows DLLs. Fixed up libeay.num for new functions.
9391 *) Make `openssl version' output lines consistent.
9392 [Ralf S. Engelschall]
9394 *) Fix Win32 symbol export lists for BIO functions: Added
9395 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9396 to ms/libeay{16,32}.def.
9397 [Ralf S. Engelschall]
9399 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9400 fine under Unix and passes some trivial tests I've now added. But the
9401 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9402 added to make sure no one expects that this stuff really works in the
9403 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9404 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9406 [Ralf S. Engelschall]
9408 *) Fix the generation of two part addresses in perl.
9409 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9411 *) Add config entry for Linux on MIPS.
9412 [John Tobey <jtobey@channel1.com>]
9414 *) Make links whenever Configure is run, unless we are on Windoze.
9417 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9418 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9422 *) Add a useful kludge to allow package maintainers to specify compiler and
9423 other platforms details on the command line without having to patch the
9424 Configure script everytime: One now can use ``perl Configure
9425 <id>:<details>'', i.e. platform ids are allowed to have details appended
9426 to them (seperated by colons). This is treated as there would be a static
9427 pre-configured entry in Configure's %table under key <id> with value
9428 <details> and ``perl Configure <id>'' is called. So, when you want to
9429 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9430 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9431 now, which overrides the FreeBSD-elf entry on-the-fly.
9432 [Ralf S. Engelschall]
9434 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9437 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9438 on the `perl Configure ...' command line. This way one can compile
9439 OpenSSL libraries with Position Independent Code (PIC) which is needed
9440 for linking it into DSOs.
9441 [Ralf S. Engelschall]
9443 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9447 *) Cleaned up the LICENSE document: The official contact for any license
9448 questions now is the OpenSSL core team under openssl-core@openssl.org.
9449 And add a paragraph about the dual-license situation to make sure people
9450 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9451 to the OpenSSL toolkit.
9452 [Ralf S. Engelschall]
9454 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9455 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9456 Additonally cleaned up the `make links' target: Remove unnecessary
9457 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9458 to speed processing and no longer clutter the display with confusing
9459 stuff. Instead only the actually done links are displayed.
9460 [Ralf S. Engelschall]
9462 *) Permit null encryption ciphersuites, used for authentication only. It used
9463 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9464 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9468 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9469 signed attributes when verifying signatures (this would break them),
9470 the detached data encoding was wrong and public keys obtained using
9471 X509_get_pubkey() weren't freed.
9474 *) Add text documentation for the BUFFER functions. Also added a work around
9475 to a Win95 console bug. This was triggered by the password read stuff: the
9476 last character typed gets carried over to the next fread(). If you were
9477 generating a new cert request using 'req' for example then the last
9478 character of the passphrase would be CR which would then enter the first
9482 *) Added the new `Includes OpenSSL Cryptography Software' button as
9483 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9484 button and can be used by applications based on OpenSSL to show the
9485 relationship to the OpenSSL project.
9486 [Ralf S. Engelschall]
9488 *) Remove confusing variables in function signatures in files
9489 ssl/ssl_lib.c and ssl/ssl.h.
9490 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9492 *) Don't install bss_file.c under PREFIX/include/
9493 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9495 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9496 functions that return function pointers and has support for NT specific
9497 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9498 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9499 unsigned to signed types: this was killing the Win32 compile.
9502 *) Add new certificate file to stack functions,
9503 SSL_add_dir_cert_subjects_to_stack() and
9504 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9505 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9506 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9507 This means that Apache-SSL and similar packages don't have to mess around
9508 to add as many CAs as they want to the preferred list.
9511 *) Experiment with doxygen documentation. Currently only partially applied to
9513 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9514 openssl.doxy as the configuration file.
9517 *) Get rid of remaining C++-style comments which strict C compilers hate.
9518 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9520 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9521 compiled in by default: it has problems with large keys.
9524 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9525 DH private keys and/or callback functions which directly correspond to
9526 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9527 is needed for applications which have to configure certificates on a
9528 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9530 For the RSA certificate situation is makes no difference, but
9531 for the DSA certificate situation this fixes the "no shared cipher"
9532 problem where the OpenSSL cipher selection procedure failed because the
9533 temporary keys were not overtaken from the context and the API provided
9534 no way to reconfigure them.
9535 The new functions now let applications reconfigure the stuff and they
9536 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9537 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9538 non-public-API function ssl_cert_instantiate() is used as a helper
9539 function and also to reduce code redundancy inside ssl_rsa.c.
9540 [Ralf S. Engelschall]
9542 *) Move s_server -dcert and -dkey options out of the undocumented feature
9543 area because they are useful for the DSA situation and should be
9544 recognized by the users.
9545 [Ralf S. Engelschall]
9547 *) Fix the cipher decision scheme for export ciphers: the export bits are
9548 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9549 SSL_EXP_MASK. So, the original variable has to be used instead of the
9550 already masked variable.
9551 [Richard Levitte <levitte@stacken.kth.se>]
9553 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9554 [Richard Levitte <levitte@stacken.kth.se>]
9556 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9557 from `int' to `unsigned int' because it's a length and initialized by
9558 EVP_DigestFinal() which expects an `unsigned int *'.
9559 [Richard Levitte <levitte@stacken.kth.se>]
9561 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9562 script. Instead use the usual Shell->Perl transition trick.
9563 [Ralf S. Engelschall]
9565 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9566 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9567 -noout -modulus' as it's already the case for `openssl rsa -noout
9568 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9569 currently the public key is printed (a decision which was already done by
9570 `openssl dsa -modulus' in the past) which serves a similar purpose.
9571 Additionally the NO_RSA no longer completely removes the whole -modulus
9572 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9574 [Ralf S. Engelschall]
9576 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9577 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9578 [Arne Ansper <arne@ats.cyber.ee>]
9580 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9581 to be added. Now both 'req' and 'ca' can use new objects defined in the
9585 *) Add cool BIO that does syslog (or event log on NT).
9586 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9588 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9589 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9590 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9591 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9594 *) Add preliminary config info for new extension code.
9597 *) Make RSA_NO_PADDING really use no padding.
9598 [Ulf Moeller <ulf@fitug.de>]
9600 *) Generate errors when private/public key check is done.
9603 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9604 for some CRL extensions and new objects added.
9607 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9608 key usage extension and fuller support for authority key id.
9611 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9612 padding method for RSA, which is recommended for new applications in PKCS
9613 #1 v2.0 (RFC 2437, October 1998).
9614 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9615 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9616 against Bleichbacher's attack on RSA.
9617 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9620 *) Updates to the new SSL compression code
9621 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9623 *) Fix so that the version number in the master secret, when passed
9624 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9625 (because the server will not accept higher), that the version number
9626 is 0x03,0x01, not 0x03,0x00
9627 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9629 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9630 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9631 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9634 *) Support for RAW extensions where an arbitrary extension can be
9635 created by including its DER encoding. See apps/openssl.cnf for
9639 *) Make sure latest Perl versions don't interpret some generated C array
9640 code as Perl array code in the crypto/err/err_genc.pl script.
9641 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9643 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9644 not many people have the assembler. Various Win32 compilation fixes and
9645 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9649 *) Modify configure script 'Configure' to automatically create crypto/date.h
9650 file under Win32 and also build pem.h from pem.org. New script
9651 util/mkfiles.pl to create the MINFO file on environments that can't do a
9652 'make files': perl util/mkfiles.pl >MINFO should work.
9655 *) Major rework of DES function declarations, in the pursuit of correctness
9656 and purity. As a result, many evil casts evaporated, and some weirdness,
9657 too. You may find this causes warnings in your code. Zapping your evil
9658 casts will probably fix them. Mostly.
9661 *) Fix for a typo in asn1.h. Bug fix to object creation script
9662 obj_dat.pl. It considered a zero in an object definition to mean
9663 "end of object": none of the objects in objects.h have any zeros
9664 so it wasn't spotted.
9665 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9667 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9668 Masking (CBCM). In the absence of test vectors, the best I have been able
9669 to do is check that the decrypt undoes the encrypt, so far. Send me test
9670 vectors if you have them.
9673 *) Correct calculation of key length for export ciphers (too much space was
9674 allocated for null ciphers). This has not been tested!
9677 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9678 message is now correct (it understands "crypto" and "ssl" on its
9679 command line). There is also now an "update" option. This will update
9680 the util/ssleay.num and util/libeay.num files with any new functions.
9682 perl util/mkdef.pl crypto ssl update
9683 it will update them.
9686 *) Overhauled the Perl interface (perl/*):
9687 - ported BN stuff to OpenSSL's different BN library
9688 - made the perl/ source tree CVS-aware
9689 - renamed the package from SSLeay to OpenSSL (the files still contain
9690 their history because I've copied them in the repository)
9691 - removed obsolete files (the test scripts will be replaced
9692 by better Test::Harness variants in the future)
9693 [Ralf S. Engelschall]
9695 *) First cut for a very conservative source tree cleanup:
9696 1. merge various obsolete readme texts into doc/ssleay.txt
9697 where we collect the old documents and readme texts.
9698 2. remove the first part of files where I'm already sure that we no
9699 longer need them because of three reasons: either they are just temporary
9700 files which were left by Eric or they are preserved original files where
9701 I've verified that the diff is also available in the CVS via "cvs diff
9702 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9703 the crypto/md/ stuff).
9704 [Ralf S. Engelschall]
9706 *) More extension code. Incomplete support for subject and issuer alt
9707 name, issuer and authority key id. Change the i2v function parameters
9708 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9709 what that's for :-) Fix to ASN1 macro which messed up
9710 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9713 *) Preliminary support for ENUMERATED type. This is largely copied from the
9717 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9718 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9720 *) Make sure `make rehash' target really finds the `openssl' program.
9721 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9723 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9724 like to hear about it if this slows down other processors.
9727 *) Add CygWin32 platform information to Configure script.
9728 [Alan Batie <batie@aahz.jf.intel.com>]
9730 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9731 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9733 *) New program nseq to manipulate netscape certificate sequences
9736 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9740 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9741 but the BN code had some problems that would cause failures when
9742 doing certificate verification and some other functions.
9743 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9745 *) Add ASN1 and PEM code to support netscape certificate sequences.
9748 *) Add ASN1 and PEM code to support netscape certificate sequences.
9751 *) Add several PKIX and private extended key usage OIDs.
9754 *) Modify the 'ca' program to handle the new extension code. Modify
9755 openssl.cnf for new extension format, add comments.
9758 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9759 and add a sample to openssl.cnf so req -x509 now adds appropriate
9763 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9764 error code, add initial support to X509_print() and x509 application.
9767 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9768 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9769 stuff is currently isolated and isn't even compiled yet.
9772 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9773 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9774 Removed the versions check from X509 routines when loading extensions:
9775 this allows certain broken certificates that don't set the version
9776 properly to be processed.
9779 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9780 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9781 can still be regenerated with "make depend".
9784 *) Spelling mistake in C version of CAST-128.
9785 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9787 *) Changes to the error generation code. The perl script err-code.pl
9788 now reads in the old error codes and retains the old numbers, only
9789 adding new ones if necessary. It also only changes the .err files if new
9790 codes are added. The makefiles have been modified to only insert errors
9791 when needed (to avoid needlessly modifying header files). This is done
9792 by only inserting errors if the .err file is newer than the auto generated
9793 C file. To rebuild all the error codes from scratch (the old behaviour)
9794 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9795 or delete all the .err files.
9798 *) CAST-128 was incorrectly implemented for short keys. The C version has
9799 been fixed, but is untested. The assembler versions are also fixed, but
9800 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9801 to regenerate it if needed.
9802 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9803 Hagino <itojun@kame.net>]
9805 *) File was opened incorrectly in randfile.c.
9806 [Ulf Möller <ulf@fitug.de>]
9808 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9809 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9810 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9811 al: it's just almost always a UTCTime. Note this patch adds new error
9812 codes so do a "make errors" if there are problems.
9815 *) Correct Linux 1 recognition in config.
9816 [Ulf Möller <ulf@fitug.de>]
9818 *) Remove pointless MD5 hash when using DSA keys in ca.
9819 [Anonymous <nobody@replay.com>]
9821 *) Generate an error if given an empty string as a cert directory. Also
9822 generate an error if handed NULL (previously returned 0 to indicate an
9823 error, but didn't set one).
9824 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9826 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9829 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9830 parameters. This was causing a warning which killed off the Win32 compile.
9833 *) Remove C++ style comments from crypto/bn/bn_local.h.
9834 [Neil Costigan <neil.costigan@celocom.com>]
9836 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9837 based on a text string, looking up short and long names and finally
9838 "dot" format. The "dot" format stuff didn't work. Added new function
9839 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9840 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9841 OID is not part of the table.
9844 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9845 X509_LOOKUP_by_alias().
9848 *) Sort openssl functions by name.
9851 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9852 encryption from sample DSA keys (in case anyone is interested the password
9856 *) Make _all_ *_free functions accept a NULL pointer.
9857 [Frans Heymans <fheymans@isaserver.be>]
9859 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9861 [Anonymous <nobody@replay.com>]
9863 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9864 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9866 *) Don't blow it for numeric -newkey arguments to apps/req.
9867 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9869 *) Temp key "for export" tests were wrong in s3_srvr.c.
9870 [Anonymous <nobody@replay.com>]
9872 *) Add prototype for temp key callback functions
9873 SSL_CTX_set_tmp_{rsa,dh}_callback().
9876 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9877 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9880 *) X509_name_add_entry() freed the wrong thing after an error.
9881 [Arne Ansper <arne@ats.cyber.ee>]
9883 *) rsa_eay.c would attempt to free a NULL context.
9884 [Arne Ansper <arne@ats.cyber.ee>]
9886 *) BIO_s_socket() had a broken should_retry() on Windoze.
9887 [Arne Ansper <arne@ats.cyber.ee>]
9889 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9890 [Arne Ansper <arne@ats.cyber.ee>]
9892 *) Make sure the already existing X509_STORE->depth variable is initialized
9893 in X509_STORE_new(), but document the fact that this variable is still
9894 unused in the certificate verification process.
9895 [Ralf S. Engelschall]
9897 *) Fix the various library and apps files to free up pkeys obtained from
9898 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9901 *) Fix reference counting in X509_PUBKEY_get(). This makes
9902 demos/maurice/example2.c work, amongst others, probably.
9903 [Steve Henson and Ben Laurie]
9905 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9906 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9907 are no longer created. This way we have a single and consistent command
9908 line interface `openssl <command>', similar to `cvs <command>'.
9909 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9911 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9912 BIT STRING wrapper always have zero unused bits.
9915 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9918 *) Make the top-level INSTALL documentation easier to understand.
9921 *) Makefiles updated to exit if an error occurs in a sub-directory
9922 make (including if user presses ^C) [Paul Sutton]
9924 *) Make Montgomery context stuff explicit in RSA data structure.
9927 *) Fix build order of pem and err to allow for generated pem.h.
9930 *) Fix renumbering bug in X509_NAME_delete_entry().
9933 *) Enhanced the err-ins.pl script so it makes the error library number
9934 global and can add a library name. This is needed for external ASN1 and
9935 other error libraries.
9938 *) Fixed sk_insert which never worked properly.
9941 *) Fix ASN1 macros so they can handle indefinite length construted
9942 EXPLICIT tags. Some non standard certificates use these: they can now
9946 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9947 into a single doc/ssleay.txt bundle. This way the information is still
9948 preserved but no longer messes up this directory. Now it's new room for
9949 the new set of documenation files.
9950 [Ralf S. Engelschall]
9952 *) SETs were incorrectly DER encoded. This was a major pain, because they
9953 shared code with SEQUENCEs, which aren't coded the same. This means that
9954 almost everything to do with SETs or SEQUENCEs has either changed name or
9955 number of arguments.
9956 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9958 *) Fix test data to work with the above.
9961 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9962 was already fixed by Eric for 0.9.1 it seems.
9963 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9965 *) Autodetect FreeBSD3.
9968 *) Fix various bugs in Configure. This affects the following platforms:
9972 unixware-2.0-pentium
9976 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9977 before they are needed.
9980 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9984 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9986 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9987 changed SSLeay to OpenSSL in version strings.
9988 [Ralf S. Engelschall]
9990 *) Some fixups to the top-level documents.
9993 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9994 because the symlink to include/ was missing.
9995 [Ralf S. Engelschall]
9997 *) Incorporated the popular no-RSA/DSA-only patches
9998 which allow to compile a RSA-free SSLeay.
9999 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10001 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10002 when "ssleay" is still not found.
10003 [Ralf S. Engelschall]
10005 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10006 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10008 *) Updated the README file.
10009 [Ralf S. Engelschall]
10011 *) Added various .cvsignore files in the CVS repository subdirs
10012 to make a "cvs update" really silent.
10013 [Ralf S. Engelschall]
10015 *) Recompiled the error-definition header files and added
10016 missing symbols to the Win32 linker tables.
10017 [Ralf S. Engelschall]
10019 *) Cleaned up the top-level documents;
10020 o new files: CHANGES and LICENSE
10021 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10022 o merged COPYRIGHT into LICENSE
10023 o removed obsolete TODO file
10024 o renamed MICROSOFT to INSTALL.W32
10025 [Ralf S. Engelschall]
10027 *) Removed dummy files from the 0.9.1b source tree:
10028 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10029 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10030 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10031 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10032 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10033 [Ralf S. Engelschall]
10035 *) Added various platform portability fixes.
10038 *) The Genesis of the OpenSSL rpject:
10039 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10040 Young and Tim J. Hudson created while they were working for C2Net until
10042 [The OpenSSL Project]
10045 Changes between 0.9.0b and 0.9.1b [not released]
10047 *) Updated a few CA certificates under certs/
10050 *) Changed some BIGNUM api stuff.
10053 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10054 DGUX x86, Linux Alpha, etc.
10057 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10058 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10062 *) Add -strparse option to asn1pars program which parses nested
10064 [Dr Stephen Henson <shenson@bigfoot.com>]
10066 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10069 *) DSA fix for "ca" program.
10072 *) Added "-genkey" option to "dsaparam" program.
10075 *) Added RIPE MD160 (rmd160) message digest.
10078 *) Added -a (all) option to "ssleay version" command.
10081 *) Added PLATFORM define which is the id given to Configure.
10084 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10087 *) Extended the ASN.1 parser routines.
10090 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10093 *) Added a BN_CTX to the BN library.
10096 *) Fixed the weak key values in DES library
10099 *) Changed API in EVP library for cipher aliases.
10102 *) Added support for RC2/64bit cipher.
10105 *) Converted the lhash library to the crypto/mem.c functions.
10108 *) Added more recognized ASN.1 object ids.
10111 *) Added more RSA padding checks for SSL/TLS.
10114 *) Added BIO proxy/filter functionality.
10117 *) Added extra_certs to SSL_CTX which can be used
10118 send extra CA certificates to the client in the CA cert chain sending
10119 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10122 *) Now Fortezza is denied in the authentication phase because
10123 this is key exchange mechanism is not supported by SSLeay at all.
10126 *) Additional PKCS1 checks.
10129 *) Support the string "TLSv1" for all TLS v1 ciphers.
10132 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10133 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10136 *) Fixed a few memory leaks.
10139 *) Fixed various code and comment typos.
10142 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10143 bytes sent in the client random.
10144 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob