5 Changes between 1.0.1 and 1.0.2 [xx XXX xxxx]
8 [Emilia Kasper, Adam Langley, Ben Laurie (Google)]
10 *) Experimental multi-implementation support for FIPS capable OpenSSL.
11 When in FIPS mode the approved implementations are used as normal,
12 when not in FIPS mode the internal unapproved versions are used instead.
13 This means that the FIPS capable OpenSSL isn't forced to use the
14 (often lower perfomance) FIPS implementations outside FIPS mode.
17 *) Transparently support X9.42 DH parameters when calling
18 PEM_read_bio_DHparameters. This means existing applications can handle
19 the new parameter format automatically.
22 *) Initial experimental support for X9.42 DH parameter format: mainly
23 to support use of 'q' parameter for RFC5114 parameters.
26 *) Add DH parameters from RFC5114 including test data to dhtest.
29 *) Support for automatic EC temporary key parameter selection. If enabled
30 the most preferred EC parameters are automatically used instead of
31 hardcoded fixed parameters. Now a server just has to call:
32 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
33 support ECDH and use the most appropriate parameters.
36 *) Enhance and tidy EC curve and point format TLS extension code. Use
37 static structures instead of allocation if default values are used.
38 New ctrls to set curves we wish to support and to retrieve shared curves.
39 Print out shared curves in s_server. New options to s_server and s_client
40 to set list of supported curves.
43 *) New ctrls to retrieve supported signature algorithms and
44 supported curve values as an array of NIDs. Extend openssl utility
45 to print out received values.
48 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
49 between NIDs and the more common NIST names such as "P-256". Enhance
50 ecparam utility and ECC method to recognise the NIST names for curves.
53 *) Enhance SSL/TLS certificate chain handling to support different
54 chains for each certificate instead of one chain in the parent SSL_CTX.
57 *) Support for fixed DH ciphersuite client authentication: where both
58 server and client use DH certificates with common parameters.
61 *) Support for fixed DH ciphersuites: those requiring DH server
65 Changes between 1.0.1c and 1.0.1d [xx XXX xxxx]
67 *) Fix possible deadlock when decoding public keys.
70 *) Don't use TLS 1.0 record version number in initial client hello
74 Changes between 1.0.1b and 1.0.1c [10 May 2012]
76 *) Sanity check record length before skipping explicit IV in TLS
77 1.2, 1.1 and DTLS to avoid DoS attack.
79 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
80 fuzzing as a service testing platform.
84 *) Initialise tkeylen properly when encrypting CMS messages.
85 Thanks to Solar Designer of Openwall for reporting this issue.
88 *) In FIPS mode don't try to use composite ciphers as they are not
92 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
94 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
95 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
96 mean any application compiled against OpenSSL 1.0.0 headers setting
97 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
98 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
99 0x10000000L Any application which was previously compiled against
100 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
101 will need to be recompiled as a result. Letting be results in
102 inability to disable specifically TLS 1.1 and in client context,
103 in unlike event, limit maximum offered version to TLS 1.0 [see below].
106 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
107 disable just protocol X, but all protocols above X *if* there are
108 protocols *below* X still enabled. In more practical terms it means
109 that if application wants to disable TLS1.0 in favor of TLS1.1 and
110 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
111 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
115 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
117 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
118 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
119 in CRYPTO_realloc_clean.
121 Thanks to Tavis Ormandy, Google Security Team, for discovering this
122 issue and to Adam Langley <agl@chromium.org> for fixing it.
124 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
126 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
129 *) Workarounds for some broken servers that "hang" if a client hello
130 record length exceeds 255 bytes:
132 1. Do not use record version number > TLS 1.0 in initial client
133 hello: some (but not all) hanging servers will now work.
134 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
135 the number of ciphers sent in the client hello. This should be
136 set to an even number, such as 50, for example by passing:
137 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
138 Most broken servers should now work.
139 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
140 TLS 1.2 client support entirely.
143 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
146 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
148 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
149 STRING form instead of a DigestInfo.
152 *) The format used for MDC2 RSA signatures is inconsistent between EVP
153 and the RSA_sign/RSA_verify functions. This was made more apparent when
154 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
155 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
156 the correct format in RSA_verify so both forms transparently work.
159 *) Some servers which support TLS 1.0 can choke if we initially indicate
160 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
161 encrypted premaster secret. As a workaround use the maximum pemitted
162 client version in client hello, this should keep such servers happy
163 and still work with previous versions of OpenSSL.
166 *) Add support for TLS/DTLS heartbeats.
167 [Robin Seggelmann <seggelmann@fh-muenster.de>]
169 *) Add support for SCTP.
170 [Robin Seggelmann <seggelmann@fh-muenster.de>]
172 *) Improved PRNG seeding for VOS.
173 [Paul Green <Paul.Green@stratus.com>]
175 *) Extensive assembler packs updates, most notably:
177 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
178 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
179 - x86_64: bit-sliced AES implementation;
180 - ARM: NEON support, contemporary platforms optimizations;
181 - s390x: z196 support;
182 - *: GHASH and GF(2^m) multiplication implementations;
186 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
187 (removal of unnecessary code)
188 [Peter Sylvester <peter.sylvester@edelweb.fr>]
190 *) Add TLS key material exporter from RFC 5705.
193 *) Add DTLS-SRTP negotiation from RFC 5764.
196 *) Add Next Protocol Negotiation,
197 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
198 disabled with a no-npn flag to config or Configure. Code donated
200 [Adam Langley <agl@google.com> and Ben Laurie]
202 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
203 NIST-P256, NIST-P521, with constant-time single point multiplication on
204 typical inputs. Compiler support for the nonstandard type __uint128_t is
205 required to use this (present in gcc 4.4 and later, for 64-bit builds).
206 Code made available under Apache License version 2.0.
208 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
209 line to include this in your build of OpenSSL, and run "make depend" (or
210 "make update"). This enables the following EC_METHODs:
212 EC_GFp_nistp224_method()
213 EC_GFp_nistp256_method()
214 EC_GFp_nistp521_method()
216 EC_GROUP_new_by_curve_name() will automatically use these (while
217 EC_GROUP_new_curve_GFp() currently prefers the more flexible
219 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
221 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
222 all platforms. Move ssize_t definition from e_os.h to the public
223 header file e_os2.h as it now appears in public header file cms.h
226 *) New -sigopt option to the ca, req and x509 utilities. Additional
227 signature parameters can be passed using this option and in
231 *) Add RSA PSS signing function. This will generate and set the
232 appropriate AlgorithmIdentifiers for PSS based on those in the
233 corresponding EVP_MD_CTX structure. No application support yet.
236 *) Support for companion algorithm specific ASN1 signing routines.
237 New function ASN1_item_sign_ctx() signs a pre-initialised
238 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
239 the appropriate parameters.
242 *) Add new algorithm specific ASN1 verification initialisation function
243 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
244 handling will be the same no matter what EVP_PKEY_METHOD is used.
245 Add a PSS handler to support verification of PSS signatures: checked
246 against a number of sample certificates.
249 *) Add signature printing for PSS. Add PSS OIDs.
250 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
252 *) Add algorithm specific signature printing. An individual ASN1 method
253 can now print out signatures instead of the standard hex dump.
255 More complex signatures (e.g. PSS) can print out more meaningful
256 information. Include DSA version that prints out the signature
260 *) Password based recipient info support for CMS library: implementing
264 *) Split password based encryption into PBES2 and PBKDF2 functions. This
265 neatly separates the code into cipher and PBE sections and is required
266 for some algorithms that split PBES2 into separate pieces (such as
270 *) Session-handling fixes:
271 - Fix handling of connections that are resuming with a session ID,
272 but also support Session Tickets.
273 - Fix a bug that suppressed issuing of a new ticket if the client
274 presented a ticket with an expired session.
275 - Try to set the ticket lifetime hint to something reasonable.
276 - Make tickets shorter by excluding irrelevant information.
277 - On the client side, don't ignore renewed tickets.
278 [Adam Langley, Bodo Moeller (Google)]
280 *) Fix PSK session representation.
283 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
285 This work was sponsored by Intel.
288 *) Add GCM support to TLS library. Some custom code is needed to split
289 the IV between the fixed (from PRF) and explicit (from TLS record)
290 portions. This adds all GCM ciphersuites supported by RFC5288 and
291 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
292 add a special AESGCM string for GCM only.
295 *) Expand range of ctrls for AES GCM. Permit setting invocation
296 field on decrypt and retrieval of invocation field only on encrypt.
299 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
300 As required by RFC5289 these ciphersuites cannot be used if for
301 versions of TLS earlier than 1.2.
304 *) For FIPS capable OpenSSL interpret a NULL default public key method
305 as unset and return the appopriate default but do *not* set the default.
306 This means we can return the appopriate method in applications that
307 swicth between FIPS and non-FIPS modes.
310 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
311 ENGINE is used then we cannot handle that in the FIPS module so we
312 keep original code iff non-FIPS operations are allowed.
315 *) Add -attime option to openssl utilities.
316 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
318 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
321 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
322 FIPS EC methods unconditionally for now.
325 *) New build option no-ec2m to disable characteristic 2 code.
328 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
329 all cases can be covered as some introduce binary incompatibilities.
332 *) Redirect RSA operations to FIPS module including keygen,
333 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
336 *) Add similar low level API blocking to ciphers.
339 *) Low level digest APIs are not approved in FIPS mode: any attempt
340 to use these will cause a fatal error. Applications that *really* want
341 to use them can use the private_* version instead.
344 *) Redirect cipher operations to FIPS module for FIPS builds.
347 *) Redirect digest operations to FIPS module for FIPS builds.
350 *) Update build system to add "fips" flag which will link in fipscanister.o
351 for static and shared library builds embedding a signature if needed.
354 *) Output TLS supported curves in preference order instead of numerical
355 order. This is currently hardcoded for the highest order curves first.
356 This should be configurable so applications can judge speed vs strength.
359 *) Add TLS v1.2 server support for client authentication.
362 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
366 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
367 FIPS modules versions.
370 *) Add TLS v1.2 client side support for client authentication. Keep cache
371 of handshake records longer as we don't know the hash algorithm to use
372 until after the certificate request message is received.
375 *) Initial TLS v1.2 client support. Add a default signature algorithms
376 extension including all the algorithms we support. Parse new signature
377 format in client key exchange. Relax some ECC signing restrictions for
378 TLS v1.2 as indicated in RFC5246.
381 *) Add server support for TLS v1.2 signature algorithms extension. Switch
382 to new signature format when needed using client digest preference.
383 All server ciphersuites should now work correctly in TLS v1.2. No client
384 support yet and no support for client certificates.
387 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
388 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
389 ciphersuites. At present only RSA key exchange ciphersuites work with
390 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
391 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
392 and version checking.
395 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
396 with this defined it will not be affected by any changes to ssl internal
397 structures. Add several utility functions to allow openssl application
398 to work with OPENSSL_NO_SSL_INTERN defined.
402 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
404 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
407 *) Permit abbreviated handshakes when renegotiating using the function
408 SSL_renegotiate_abbreviated().
409 [Robin Seggelmann <seggelmann@fh-muenster.de>]
411 *) Add call to ENGINE_register_all_complete() to
412 ENGINE_load_builtin_engines(), so some implementations get used
413 automatically instead of needing explicit application support.
416 *) Add support for TLS key exporter as described in RFC5705.
417 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
419 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
420 a few changes are required:
422 Add SSL_OP_NO_TLSv1_1 flag.
424 Update version checking logic to handle version 1.1.
425 Add explicit IV handling (ported from DTLS code).
426 Add command line options to s_client/s_server.
429 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
431 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
432 in CMS and PKCS7 code. When RSA decryption fails use a random key for
433 content decryption and always return the same error. Note: this attack
434 needs on average 2^20 messages so it only affects automated senders. The
435 old behaviour can be reenabled in the CMS code by setting the
436 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
437 an MMA defence is not necessary.
438 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
439 this issue. (CVE-2012-0884)
442 *) Fix CVE-2011-4619: make sure we really are receiving a
443 client hello before rejecting multiple SGC restarts. Thanks to
444 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
447 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
449 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
450 Thanks to Antonio Martin, Enterprise Secure Access Research and
451 Development, Cisco Systems, Inc. for discovering this bug and
452 preparing a fix. (CVE-2012-0050)
455 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
457 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
458 of the Vaudenay padding oracle attack on CBC mode encryption
459 which enables an efficient plaintext recovery attack against
460 the OpenSSL implementation of DTLS. Their attack exploits timing
461 differences arising during decryption processing. A research
462 paper describing this attack can be found at:
463 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
464 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
465 Security Group at Royal Holloway, University of London
466 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
467 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
468 for preparing the fix. (CVE-2011-4108)
469 [Robin Seggelmann, Michael Tuexen]
471 *) Clear bytes used for block padding of SSL 3.0 records.
473 [Adam Langley (Google)]
475 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
476 Kadianakis <desnacked@gmail.com> for discovering this issue and
477 Adam Langley for preparing the fix. (CVE-2011-4619)
478 [Adam Langley (Google)]
480 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
481 [Andrey Kulikov <amdeich@gmail.com>]
483 *) Prevent malformed RFC3779 data triggering an assertion failure.
484 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
485 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
486 [Rob Austein <sra@hactrn.net>]
488 *) Improved PRNG seeding for VOS.
489 [Paul Green <Paul.Green@stratus.com>]
491 *) Fix ssl_ciph.c set-up race.
492 [Adam Langley (Google)]
494 *) Fix spurious failures in ecdsatest.c.
495 [Emilia Käsper (Google)]
497 *) Fix the BIO_f_buffer() implementation (which was mixing different
498 interpretations of the '..._len' fields).
499 [Adam Langley (Google)]
501 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
502 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
503 threads won't reuse the same blinding coefficients.
505 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
506 lock to call BN_BLINDING_invert_ex, and avoids one use of
507 BN_BLINDING_update for each BN_BLINDING structure (previously,
508 the last update always remained unused).
509 [Emilia Käsper (Google)]
511 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
512 [Bob Buckholz (Google)]
514 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
516 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
517 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
518 [Kaspar Brand <ossl@velox.ch>]
520 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
521 for multi-threaded use of ECDH. (CVE-2011-3210)
522 [Adam Langley (Google)]
524 *) Fix x509_name_ex_d2i memory leak on bad inputs.
527 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
528 signature public key algorithm by using OID xref utilities instead.
529 Before this you could only use some ECC ciphersuites with SHA1 only.
532 *) Add protection against ECDSA timing attacks as mentioned in the paper
533 by Billy Bob Brumley and Nicola Tuveri, see:
535 http://eprint.iacr.org/2011/232.pdf
537 [Billy Bob Brumley and Nicola Tuveri]
539 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
541 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
542 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
544 *) Fix bug in string printing code: if *any* escaping is enabled we must
545 escape the escape character (backslash) or the resulting string is
549 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
551 *) Disable code workaround for ancient and obsolete Netscape browsers
552 and servers: an attacker can use it in a ciphersuite downgrade attack.
553 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
556 *) Fixed J-PAKE implementation error, originally discovered by
557 Sebastien Martini, further info and confirmation from Stefan
558 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
561 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
563 *) Fix extension code to avoid race conditions which can result in a buffer
564 overrun vulnerability: resumed sessions must not be modified as they can
565 be shared by multiple threads. CVE-2010-3864
568 *) Fix WIN32 build system to correctly link an ENGINE directory into
572 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
574 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
576 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
578 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
580 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
581 context. The operation can be customised via the ctrl mechanism in
582 case ENGINEs want to include additional functionality.
585 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
588 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
589 output hashes compatible with older versions of OpenSSL.
590 [Willy Weisz <weisz@vcpc.univie.ac.at>]
592 *) Fix compression algorithm handling: if resuming a session use the
593 compression algorithm of the resumed session instead of determining
594 it from client hello again. Don't allow server to change algorithm.
597 *) Add load_crls() function to apps tidying load_certs() too. Add option
598 to verify utility to allow additional CRLs to be included.
601 *) Update OCSP request code to permit adding custom headers to the request:
602 some responders need this.
605 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
607 [Julia Lawall <julia@diku.dk>]
609 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
610 needlessly dereferenced structures, used obsolete functions and
611 didn't handle all updated verify codes correctly.
614 *) Disable MD2 in the default configuration.
617 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
618 indicate the initial BIO being pushed or popped. This makes it possible
619 to determine whether the BIO is the one explicitly called or as a result
620 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
621 it handles reference counts correctly and doesn't zero out the I/O bio
622 when it is not being explicitly popped. WARNING: applications which
623 included workarounds for the old buggy behaviour will need to be modified
624 or they could free up already freed BIOs.
627 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
628 renaming to all platforms (within the 0.9.8 branch, this was
629 done conditionally on Netware platforms to avoid a name clash).
630 [Guenter <lists@gknw.net>]
632 *) Add ECDHE and PSK support to DTLS.
633 [Michael Tuexen <tuexen@fh-muenster.de>]
635 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
639 *) Add "missing" function EVP_MD_flags() (without this the only way to
640 retrieve a digest flags is by accessing the structure directly. Update
641 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
642 or cipher is registered as in the "from" argument. Print out all
643 registered digests in the dgst usage message instead of manually
644 attempting to work them out.
647 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
648 this allows the use of compression and extensions. Change default cipher
649 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
650 by default unless an application cipher string requests it.
653 *) Alter match criteria in PKCS12_parse(). It used to try to use local
654 key ids to find matching certificates and keys but some PKCS#12 files
655 don't follow the (somewhat unwritten) rules and this strategy fails.
656 Now just gather all certificates together and the first private key
657 then look for the first certificate that matches the key.
660 *) Support use of registered digest and cipher names for dgst and cipher
661 commands instead of having to add each one as a special case. So now
668 openssl dgst -sha256 foo
670 and this works for ENGINE based algorithms too.
674 *) Update Gost ENGINE to support parameter files.
675 [Victor B. Wagner <vitus@cryptocom.ru>]
677 *) Support GeneralizedTime in ca utility.
678 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
680 *) Enhance the hash format used for certificate directory links. The new
681 form uses the canonical encoding (meaning equivalent names will work
682 even if they aren't identical) and uses SHA1 instead of MD5. This form
683 is incompatible with the older format and as a result c_rehash should
684 be used to rebuild symbolic links.
687 *) Make PKCS#8 the default write format for private keys, replacing the
688 traditional format. This form is standardised, more secure and doesn't
689 include an implicit MD5 dependency.
692 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
693 committed to OpenSSL should pass this lot as a minimum.
696 *) Add session ticket override functionality for use by EAP-FAST.
697 [Jouni Malinen <j@w1.fi>]
699 *) Modify HMAC functions to return a value. Since these can be implemented
700 in an ENGINE errors can occur.
703 *) Type-checked OBJ_bsearch_ex.
706 *) Type-checked OBJ_bsearch. Also some constification necessitated
707 by type-checking. Still to come: TXT_DB, bsearch(?),
708 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
712 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
713 seconds to a tm structure directly, instead of going through OS
714 specific date routines. This avoids any issues with OS routines such
715 as the year 2038 bug. New *_adj() functions for ASN1 time structures
716 and X509_time_adj_ex() to cover the extended range. The existing
717 X509_time_adj() is still usable and will no longer have any date issues.
720 *) Delta CRL support. New use deltas option which will attempt to locate
721 and search any appropriate delta CRLs available.
723 This work was sponsored by Google.
726 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
727 code and add additional score elements. Validate alternate CRL paths
728 as part of the CRL checking and indicate a new error "CRL path validation
729 error" in this case. Applications wanting additional details can use
730 the verify callback and check the new "parent" field. If this is not
731 NULL CRL path validation is taking place. Existing applications wont
732 see this because it requires extended CRL support which is off by
735 This work was sponsored by Google.
738 *) Support for freshest CRL extension.
740 This work was sponsored by Google.
743 *) Initial indirect CRL support. Currently only supported in the CRLs
744 passed directly and not via lookup. Process certificate issuer
745 CRL entry extension and lookup CRL entries by bother issuer name
746 and serial number. Check and process CRL issuer entry in IDP extension.
748 This work was sponsored by Google.
751 *) Add support for distinct certificate and CRL paths. The CRL issuer
752 certificate is validated separately in this case. Only enabled if
753 an extended CRL support flag is set: this flag will enable additional
754 CRL functionality in future.
756 This work was sponsored by Google.
759 *) Add support for policy mappings extension.
761 This work was sponsored by Google.
764 *) Fixes to pathlength constraint, self issued certificate handling,
765 policy processing to align with RFC3280 and PKITS tests.
767 This work was sponsored by Google.
770 *) Support for name constraints certificate extension. DN, email, DNS
771 and URI types are currently supported.
773 This work was sponsored by Google.
776 *) To cater for systems that provide a pointer-based thread ID rather
777 than numeric, deprecate the current numeric thread ID mechanism and
778 replace it with a structure and associated callback type. This
779 mechanism allows a numeric "hash" to be extracted from a thread ID in
780 either case, and on platforms where pointers are larger than 'long',
781 mixing is done to help ensure the numeric 'hash' is usable even if it
782 can't be guaranteed unique. The default mechanism is to use "&errno"
783 as a pointer-based thread ID to distinguish between threads.
785 Applications that want to provide their own thread IDs should now use
786 CRYPTO_THREADID_set_callback() to register a callback that will call
787 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
789 Note that ERR_remove_state() is now deprecated, because it is tied
790 to the assumption that thread IDs are numeric. ERR_remove_state(0)
791 to free the current thread's error state should be replaced by
792 ERR_remove_thread_state(NULL).
794 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
795 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
796 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
797 application was previously providing a numeric thread callback that
798 was inappropriate for distinguishing threads, then uniqueness might
799 have been obtained with &errno that happened immediately in the
800 intermediate development versions of OpenSSL; this is no longer the
801 case, the numeric thread callback will now override the automatic use
803 [Geoff Thorpe, with help from Bodo Moeller]
805 *) Initial support for different CRL issuing certificates. This covers a
806 simple case where the self issued certificates in the chain exist and
807 the real CRL issuer is higher in the existing chain.
809 This work was sponsored by Google.
812 *) Removed effectively defunct crypto/store from the build.
815 *) Revamp of STACK to provide stronger type-checking. Still to come:
816 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
817 ASN1_STRING, CONF_VALUE.
820 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
821 RAM on SSL connections. This option can save about 34k per idle SSL.
824 *) Revamp of LHASH to provide stronger type-checking. Still to come:
825 STACK, TXT_DB, bsearch, qsort.
828 *) Initial support for Cryptographic Message Syntax (aka CMS) based
829 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
830 support for data, signedData, compressedData, digestedData and
831 encryptedData, envelopedData types included. Scripts to check against
832 RFC4134 examples draft and interop and consistency checks of many
833 content types and variants.
836 *) Add options to enc utility to support use of zlib compression BIO.
839 *) Extend mk1mf to support importing of options and assembly language
840 files from Configure script, currently only included in VC-WIN32.
841 The assembly language rules can now optionally generate the source
842 files from the associated perl scripts.
845 *) Implement remaining functionality needed to support GOST ciphersuites.
846 Interop testing has been performed using CryptoPro implementations.
847 [Victor B. Wagner <vitus@cryptocom.ru>]
849 *) s390x assembler pack.
852 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
856 *) Implement Opaque PRF Input TLS extension as specified in
857 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
858 official specification yet and no extension type assignment by
859 IANA exists, this extension (for now) will have to be explicitly
860 enabled when building OpenSSL by providing the extension number
861 to use. For example, specify an option
863 -DTLSEXT_TYPE_opaque_prf_input=0x9527
865 to the "config" or "Configure" script to enable the extension,
866 assuming extension number 0x9527 (which is a completely arbitrary
867 and unofficial assignment based on the MD5 hash of the Internet
868 Draft). Note that by doing so, you potentially lose
869 interoperability with other TLS implementations since these might
870 be using the same extension number for other purposes.
872 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
873 opaque PRF input value to use in the handshake. This will create
874 an interal copy of the length-'len' string at 'src', and will
875 return non-zero for success.
877 To get more control and flexibility, provide a callback function
880 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
881 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
885 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
888 Callback function 'cb' will be called in handshakes, and is
889 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
890 Argument 'arg' is for application purposes (the value as given to
891 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
892 be provided to the callback function). The callback function
893 has to return non-zero to report success: usually 1 to use opaque
894 PRF input just if possible, or 2 to enforce use of the opaque PRF
895 input. In the latter case, the library will abort the handshake
896 if opaque PRF input is not successfully negotiated.
898 Arguments 'peerinput' and 'len' given to the callback function
899 will always be NULL and 0 in the case of a client. A server will
900 see the client's opaque PRF input through these variables if
901 available (NULL and 0 otherwise). Note that if the server
902 provides an opaque PRF input, the length must be the same as the
903 length of the client's opaque PRF input.
905 Note that the callback function will only be called when creating
906 a new session (session resumption can resume whatever was
907 previously negotiated), and will not be called in SSL 2.0
908 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
909 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
910 for applications that need to enforce opaque PRF input.
914 *) Update ssl code to support digests other than SHA1+MD5 for handshake
917 [Victor B. Wagner <vitus@cryptocom.ru>]
919 *) Add RFC4507 support to OpenSSL. This includes the corrections in
920 RFC4507bis. The encrypted ticket format is an encrypted encoded
921 SSL_SESSION structure, that way new session features are automatically
924 If a client application caches session in an SSL_SESSION structure
925 support is transparent because tickets are now stored in the encoded
928 The SSL_CTX structure automatically generates keys for ticket
929 protection in servers so again support should be possible
930 with no application modification.
932 If a client or server wishes to disable RFC4507 support then the option
933 SSL_OP_NO_TICKET can be set.
935 Add a TLS extension debugging callback to allow the contents of any client
936 or server extensions to be examined.
938 This work was sponsored by Google.
941 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
942 OpenSSL should now compile cleanly on gcc 4.2
943 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
945 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
946 support including streaming MAC support: this is required for GOST
948 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
950 *) Add option -stream to use PKCS#7 streaming in smime utility. New
951 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
952 to output in BER and PEM format.
955 *) Experimental support for use of HMAC via EVP_PKEY interface. This
956 allows HMAC to be handled via the EVP_DigestSign*() interface. The
957 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
958 ENGINE support for HMAC keys which are unextractable. New -mac and
959 -macopt options to dgst utility.
962 *) New option -sigopt to dgst utility. Update dgst to use
963 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
964 alternative signing paramaters such as X9.31 or PSS in the dgst
968 *) Change ssl_cipher_apply_rule(), the internal function that does
969 the work each time a ciphersuite string requests enabling
970 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
971 removing ("!foo+bar") a class of ciphersuites: Now it maintains
972 the order of disabled ciphersuites such that those ciphersuites
973 that most recently went from enabled to disabled not only stay
974 in order with respect to each other, but also have higher priority
975 than other disabled ciphersuites the next time ciphersuites are
978 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
979 the same ciphersuites as with "HIGH" alone, but in a specific
980 order where the PSK ciphersuites come first (since they are the
981 most recently disabled ciphersuites when "HIGH" is parsed).
983 Also, change ssl_create_cipher_list() (using this new
984 funcionality) such that between otherwise identical
985 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
989 *) Change ssl_create_cipher_list() so that it automatically
990 arranges the ciphersuites in reasonable order before starting
991 to process the rule string. Thus, the definition for "DEFAULT"
992 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
993 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
994 This makes it much easier to arrive at a reasonable default order
995 in applications for which anonymous ciphers are OK (meaning
996 that you can't actually use DEFAULT).
997 [Bodo Moeller; suggested by Victor Duchovni]
999 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1000 processing) into multiple integers instead of setting
1001 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1002 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1003 (These masks as well as the individual bit definitions are hidden
1004 away into the non-exported interface ssl/ssl_locl.h, so this
1005 change to the definition of the SSL_CIPHER structure shouldn't
1006 affect applications.) This give us more bits for each of these
1007 categories, so there is no longer a need to coagulate AES128 and
1008 AES256 into a single algorithm bit, and to coagulate Camellia128
1009 and Camellia256 into a single algorithm bit, which has led to all
1012 Thus, among other things, the kludge introduced in 0.9.7m and
1013 0.9.8e for masking out AES256 independently of AES128 or masking
1014 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1016 With the change, we also introduce new ciphersuite aliases that
1017 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1021 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1022 Use the leftmost N bytes of the signature input if the input is
1023 larger than the prime q (with N being the size in bytes of q).
1026 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1027 it yet and it is largely untested.
1030 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1033 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1034 some compilers (gcc 4.2 and later) reject their use. Safestack is
1035 reimplemented. Update ASN1 to avoid use of legacy functions.
1038 *) Win32/64 targets are linked with Winsock2.
1041 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1042 to external functions. This can be used to increase CRL handling
1043 efficiency especially when CRLs are very large by (for example) storing
1044 the CRL revoked certificates in a database.
1047 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1048 new CRLs added to a directory can be used. New command line option
1049 -verify_return_error to s_client and s_server. This causes real errors
1050 to be returned by the verify callback instead of carrying on no matter
1051 what. This reflects the way a "real world" verify callback would behave.
1054 *) GOST engine, supporting several GOST algorithms and public key formats.
1055 Kindly donated by Cryptocom.
1058 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1059 partitioned by DP are handled but no indirect CRL or reason partitioning
1060 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1061 selected via a scoring technique which handles IDP and AKID in CRLs.
1064 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1065 will ultimately be used for all verify operations: this will remove the
1066 X509_STORE dependency on certificate verification and allow alternative
1067 lookup methods. X509_STORE based implementations of these two callbacks.
1070 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1071 Modify get_crl() to find a valid (unexpired) CRL if possible.
1074 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1075 this would be called X509_CRL_cmp() but that name is already used by
1076 a function that just compares CRL issuer names. Cache several CRL
1077 extensions in X509_CRL structure and cache CRLDP in X509.
1080 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1081 this maps equivalent X509_NAME structures into a consistent structure.
1082 Name comparison can then be performed rapidly using memcmp().
1085 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1089 *) Allow digests to supply their own micalg string for S/MIME type using
1090 the ctrl EVP_MD_CTRL_MICALG.
1093 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1094 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1095 ctrl. It can then customise the structure before and/or after signing
1099 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1100 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1101 to free up any added signature OIDs.
1104 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1105 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1106 digest and cipher tables. New options added to openssl utility:
1107 list-message-digest-algorithms and list-cipher-algorithms.
1110 *) Change the array representation of binary polynomials: the list
1111 of degrees of non-zero coefficients is now terminated with -1.
1112 Previously it was terminated with 0, which was also part of the
1113 value; thus, the array representation was not applicable to
1114 polynomials where t^0 has coefficient zero. This change makes
1115 the array representation useful in a more general context.
1118 *) Various modifications and fixes to SSL/TLS cipher string
1119 handling. For ECC, the code now distinguishes between fixed ECDH
1120 with RSA certificates on the one hand and with ECDSA certificates
1121 on the other hand, since these are separate ciphersuites. The
1122 unused code for Fortezza ciphersuites has been removed.
1124 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1125 (not "ECDHE"). For consistency with the code for DH
1126 certificates, use of ECDH certificates is now considered ECDH
1127 authentication, not RSA or ECDSA authentication (the latter is
1128 merely the CA's signing algorithm and not actively used in the
1131 The temporary ciphersuite alias "ECCdraft" is no longer
1132 available, and ECC ciphersuites are no longer excluded from "ALL"
1133 and "DEFAULT". The following aliases now exist for RFC 4492
1134 ciphersuites, most of these by analogy with the DH case:
1136 kECDHr - ECDH cert, signed with RSA
1137 kECDHe - ECDH cert, signed with ECDSA
1138 kECDH - ECDH cert (signed with either RSA or ECDSA)
1139 kEECDH - ephemeral ECDH
1140 ECDH - ECDH cert or ephemeral ECDH
1146 AECDH - anonymous ECDH
1147 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1151 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1152 Use correct micalg parameters depending on digest(s) in signed message.
1155 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1156 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1159 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1160 an engine to register a method. Add ENGINE lookups for methods and
1161 functional reference processing.
1164 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1165 EVP_{Sign,Verify}* which allow an application to customise the signature
1169 *) New -resign option to smime utility. This adds one or more signers
1170 to an existing PKCS#7 signedData structure. Also -md option to use an
1171 alternative message digest algorithm for signing.
1174 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1175 create PKCS7 structures containing multiple signers. Update smime
1176 application to support multiple signers.
1179 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1183 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1184 Reorganize PBE internals to lookup from a static table using NIDs,
1185 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1186 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1187 PRF which will be automatically used with PBES2.
1190 *) Replace the algorithm specific calls to generate keys in "req" with the
1194 *) Update PKCS#7 enveloped data routines to use new API. This is now
1195 supported by any public key method supporting the encrypt operation. A
1196 ctrl is added to allow the public key algorithm to examine or modify
1197 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1201 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1202 a default digest type to use. In most cases this will be SHA1 but some
1203 algorithms (such as GOST) need to specify an alternative digest. The
1204 return value indicates how strong the prefernce is 1 means optional and
1205 2 is mandatory (that is it is the only supported type). Modify
1206 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1207 use the default md. Update openssl utilities to use the default digest
1208 type for signing if it is not explicitly indicated.
1211 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1212 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1213 signing method from the key type. This effectively removes the link
1214 between digests and public key types.
1217 *) Add an OID cross reference table and utility functions. Its purpose is to
1218 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1219 rsaEncryption. This will allow some of the algorithm specific hackery
1220 needed to use the correct OID to be removed.
1223 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1224 structures for PKCS7_sign(). They are now set up by the relevant public
1228 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1231 *) Add support for key derivation (agreement) in the API, DH method and
1235 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1236 public and private key formats. As a side effect these add additional
1237 command line functionality not previously available: DSA signatures can be
1238 generated and verified using pkeyutl and DH key support and generation in
1243 [Oliver Tappe <zooey@hirschkaefer.de>]
1245 *) New make target "install_html_docs" installs HTML renditions of the
1247 [Oliver Tappe <zooey@hirschkaefer.de>]
1249 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1250 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1251 support key and parameter generation and add initial key generation
1252 functionality for RSA.
1255 *) Add functions for main EVP_PKEY_method operations. The undocumented
1256 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1257 EVP_PKEY_{encrypt,decrypt}_old.
1260 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1261 key API, doesn't do much yet.
1264 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1265 public key algorithms. New option to openssl utility:
1266 "list-public-key-algorithms" to print out info.
1269 *) Implement the Supported Elliptic Curves Extension for
1270 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1273 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1274 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1277 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1278 utilities such as rsa, dsa, dsaparam etc except they process any key
1282 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1283 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1284 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1288 *) Initial support for pluggable public key ASN1.
1289 De-spaghettify the public key ASN1 handling. Move public and private
1290 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1291 algorithm specific handling to a single module within the relevant
1292 algorithm directory. Add functions to allow (near) opaque processing
1293 of public and private key structures.
1296 *) Implement the Supported Point Formats Extension for
1297 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1300 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1301 for the psk identity [hint] and the psk callback functions to the
1302 SSL_SESSION, SSL and SSL_CTX structure.
1305 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1309 SSL_CTX_use_psk_identity_hint
1310 SSL_get_psk_identity_hint
1311 SSL_get_psk_identity
1312 SSL_use_psk_identity_hint
1314 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1316 *) Add RFC 3161 compliant time stamp request creation, response generation
1317 and response verification functionality.
1318 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1320 *) Add initial support for TLS extensions, specifically for the server_name
1321 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1322 have new members for a host name. The SSL data structure has an
1323 additional member SSL_CTX *initial_ctx so that new sessions can be
1324 stored in that context to allow for session resumption, even after the
1325 SSL has been switched to a new SSL_CTX in reaction to a client's
1326 server_name extension.
1328 New functions (subject to change):
1330 SSL_get_servername()
1331 SSL_get_servername_type()
1334 New CTRL codes and macros (subject to change):
1336 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1337 - SSL_CTX_set_tlsext_servername_callback()
1338 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1339 - SSL_CTX_set_tlsext_servername_arg()
1340 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1342 openssl s_client has a new '-servername ...' option.
1344 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1345 '-key2 ...', '-servername_fatal' (subject to change). This allows
1346 testing the HostName extension for a specific single host name ('-cert'
1347 and '-key' remain fallbacks for handshakes without HostName
1348 negotiation). If the unrecogninzed_name alert has to be sent, this by
1349 default is a warning; it becomes fatal with the '-servername_fatal'
1352 [Peter Sylvester, Remy Allais, Christophe Renou]
1354 *) Whirlpool hash implementation is added.
1357 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1358 bn(64,32). Because of instruction set limitations it doesn't have
1359 any negative impact on performance. This was done mostly in order
1360 to make it possible to share assembler modules, such as bn_mul_mont
1361 implementations, between 32- and 64-bit builds without hassle.
1364 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1365 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1369 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1370 dedicated Montgomery multiplication procedure, is introduced.
1371 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1372 "64-bit" performance on certain 32-bit targets.
1375 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1376 in SSL structures. New SSL ctrl to set maximum send fragment size.
1377 Save memory by seeting the I/O buffer sizes dynamically instead of
1378 using the maximum available value.
1381 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1382 in addition to the text details.
1385 *) Very, very preliminary EXPERIMENTAL support for printing of general
1386 ASN1 structures. This currently produces rather ugly output and doesn't
1387 handle several customised structures at all.
1390 *) Integrated support for PVK file format and some related formats such
1391 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1392 these in the 'rsa' and 'dsa' utilities.
1395 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1398 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1399 place for the (very old) "NETSCAPE" format certificates which are now
1400 handled using new ASN1 code equivalents.
1403 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1404 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1405 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1408 *) Modify CRL distribution points extension code to print out previously
1409 unsupported fields. Enhance extension setting code to allow setting of
1413 *) Add print and set support for Issuing Distribution Point CRL extension.
1416 *) Change 'Configure' script to enable Camellia by default.
1419 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1421 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1422 Thanks to Antonio Martin, Enterprise Secure Access Research and
1423 Development, Cisco Systems, Inc. for discovering this bug and
1424 preparing a fix. (CVE-2012-0050)
1427 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1429 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1430 of the Vaudenay padding oracle attack on CBC mode encryption
1431 which enables an efficient plaintext recovery attack against
1432 the OpenSSL implementation of DTLS. Their attack exploits timing
1433 differences arising during decryption processing. A research
1434 paper describing this attack can be found at:
1435 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1436 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1437 Security Group at Royal Holloway, University of London
1438 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1439 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1440 for preparing the fix. (CVE-2011-4108)
1441 [Robin Seggelmann, Michael Tuexen]
1443 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1444 [Ben Laurie, Kasper <ekasper@google.com>]
1446 *) Clear bytes used for block padding of SSL 3.0 records.
1448 [Adam Langley (Google)]
1450 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1451 Kadianakis <desnacked@gmail.com> for discovering this issue and
1452 Adam Langley for preparing the fix. (CVE-2011-4619)
1453 [Adam Langley (Google)]
1455 *) Prevent malformed RFC3779 data triggering an assertion failure.
1456 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1457 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1458 [Rob Austein <sra@hactrn.net>]
1460 *) Fix ssl_ciph.c set-up race.
1461 [Adam Langley (Google)]
1463 *) Fix spurious failures in ecdsatest.c.
1464 [Emilia Käsper (Google)]
1466 *) Fix the BIO_f_buffer() implementation (which was mixing different
1467 interpretations of the '..._len' fields).
1468 [Adam Langley (Google)]
1470 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1471 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1472 threads won't reuse the same blinding coefficients.
1474 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1475 lock to call BN_BLINDING_invert_ex, and avoids one use of
1476 BN_BLINDING_update for each BN_BLINDING structure (previously,
1477 the last update always remained unused).
1478 [Emilia Käsper (Google)]
1480 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1481 for multi-threaded use of ECDH.
1482 [Adam Langley (Google)]
1484 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1487 *) Add protection against ECDSA timing attacks as mentioned in the paper
1488 by Billy Bob Brumley and Nicola Tuveri, see:
1490 http://eprint.iacr.org/2011/232.pdf
1492 [Billy Bob Brumley and Nicola Tuveri]
1494 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1496 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1497 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1499 *) Fix bug in string printing code: if *any* escaping is enabled we must
1500 escape the escape character (backslash) or the resulting string is
1504 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1506 *) Disable code workaround for ancient and obsolete Netscape browsers
1507 and servers: an attacker can use it in a ciphersuite downgrade attack.
1508 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1511 *) Fixed J-PAKE implementation error, originally discovered by
1512 Sebastien Martini, further info and confirmation from Stefan
1513 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1516 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1518 *) Fix extension code to avoid race conditions which can result in a buffer
1519 overrun vulnerability: resumed sessions must not be modified as they can
1520 be shared by multiple threads. CVE-2010-3864
1523 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1526 *) Don't reencode certificate when calculating signature: cache and use
1527 the original encoding instead. This makes signature verification of
1528 some broken encodings work correctly.
1531 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1532 is also one of the inputs.
1533 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1535 *) Don't repeatedly append PBE algorithms to table if they already exist.
1536 Sort table on each new add. This effectively makes the table read only
1537 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1541 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1543 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1546 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1547 access or freeing data twice (CVE-2010-0742)
1548 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1550 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1551 common in certificates and some applications which only call
1552 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1556 Reduce copying into .apps and .test in makevms.com
1557 Don't try to use blank CA certificate in CA.com
1558 Allow use of C files from original directories in maketests.com
1559 [Steven M. Schweda" <sms@antinode.info>]
1561 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1563 *) When rejecting SSL/TLS records due to an incorrect version number, never
1564 update s->server with a new major version number. As of
1565 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1566 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1567 the previous behavior could result in a read attempt at NULL when
1568 receiving specific incorrect SSL/TLS records once record payload
1569 protection is active. (CVE-2010-0740)
1570 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1572 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1573 could be crashed if the relevant tables were not present (e.g. chrooted).
1574 [Tomas Hoger <thoger@redhat.com>]
1576 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1578 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1579 [Martin Olsson, Neel Mehta]
1581 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1582 accommodate for stack sorting, always a write lock!).
1585 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1586 excessive delays in the RAND_poll(): over a minute. As a workaround
1587 include a time check in the inner Heap32Next loop too.
1590 *) The code that handled flushing of data in SSL/TLS originally used the
1591 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1592 the problem outlined in PR#1949. The fix suggested there however can
1593 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1594 of Apache). So instead simplify the code to flush unconditionally.
1595 This should be fine since flushing with no data to flush is a no op.
1598 *) Handle TLS versions 2.0 and later properly and correctly use the
1599 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1600 off ancient servers have a habit of sticking around for a while...
1603 *) Modify compression code so it frees up structures without using the
1604 ex_data callbacks. This works around a problem where some applications
1605 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1606 restarting) then use compression (e.g. SSL with compression) later.
1607 This results in significant per-connection memory leaks and
1608 has caused some security issues including CVE-2008-1678 and
1612 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1613 change when encrypting or decrypting.
1616 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1617 connect and renegotiate with servers which do not support RI.
1618 Until RI is more widely deployed this option is enabled by default.
1621 *) Add "missing" ssl ctrls to clear options and mode.
1624 *) If client attempts to renegotiate and doesn't support RI respond with
1625 a no_renegotiation alert as required by RFC5746. Some renegotiating
1626 TLS clients will continue a connection gracefully when they receive
1627 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1628 waiting for a server hello which it will never receive. Now we treat a
1629 received no_renegotiation alert as a fatal error. This is because
1630 applications requesting a renegotiation might well expect it to succeed
1631 and would have no code in place to handle the server denying it so the
1632 only safe thing to do is to terminate the connection.
1635 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1636 peer supports secure renegotiation and 0 otherwise. Print out peer
1637 renegotiation support in s_client/s_server.
1640 *) Replace the highly broken and deprecated SPKAC certification method with
1641 the updated NID creation version. This should correctly handle UTF8.
1644 *) Implement RFC5746. Re-enable renegotiation but require the extension
1645 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1646 turns out to be a bad idea. It has been replaced by
1647 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1648 SSL_CTX_set_options(). This is really not recommended unless you
1649 know what you are doing.
1650 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1652 *) Fixes to stateless session resumption handling. Use initial_ctx when
1653 issuing and attempting to decrypt tickets in case it has changed during
1654 servername handling. Use a non-zero length session ID when attempting
1655 stateless session resumption: this makes it possible to determine if
1656 a resumption has occurred immediately after receiving server hello
1657 (several places in OpenSSL subtly assume this) instead of later in
1661 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1662 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1663 fixes for a few places where the return code is not checked
1665 [Julia Lawall <julia@diku.dk>]
1667 *) Add --strict-warnings option to Configure script to include devteam
1668 warnings in other configurations.
1671 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1672 makes it possible to install openssl libraries in locations which
1673 have names other than "lib", for example "/usr/lib64" which some
1675 [Steve Henson, based on patch from Jeremy Utley]
1677 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1678 X690 8.9.12 and can produce some misleading textual output of OIDs.
1679 [Steve Henson, reported by Dan Kaminsky]
1681 *) Delete MD2 from algorithm tables. This follows the recommendation in
1682 several standards that it is not used in new applications due to
1683 several cryptographic weaknesses. For binary compatibility reasons
1684 the MD2 API is still compiled in by default.
1687 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1691 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1692 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1694 [Guenter <lists@gknw.net>]
1696 *) Fix the server certificate chain building code to use X509_verify_cert(),
1697 it used to have an ad-hoc builder which was unable to cope with anything
1698 other than a simple chain.
1699 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1701 *) Don't check self signed certificate signatures in X509_verify_cert()
1702 by default (a flag can override this): it just wastes time without
1703 adding any security. As a useful side effect self signed root CAs
1704 with non-FIPS digests are now usable in FIPS mode.
1707 *) In dtls1_process_out_of_seq_message() the check if the current message
1708 is already buffered was missing. For every new message was memory
1709 allocated, allowing an attacker to perform an denial of service attack
1710 with sending out of seq handshake messages until there is no memory
1711 left. Additionally every future messege was buffered, even if the
1712 sequence number made no sense and would be part of another handshake.
1713 So only messages with sequence numbers less than 10 in advance will be
1714 buffered. (CVE-2009-1378)
1715 [Robin Seggelmann, discovered by Daniel Mentz]
1717 *) Records are buffered if they arrive with a future epoch to be
1718 processed after finishing the corresponding handshake. There is
1719 currently no limitation to this buffer allowing an attacker to perform
1720 a DOS attack with sending records with future epochs until there is no
1721 memory left. This patch adds the pqueue_size() function to detemine
1722 the size of a buffer and limits the record buffer to 100 entries.
1724 [Robin Seggelmann, discovered by Daniel Mentz]
1726 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1727 parent structure is freed. (CVE-2009-1379)
1730 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1731 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1734 [Ilya O. <vrghost@gmail.com>]
1736 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1738 *) Disable renegotiation completely - this fixes a severe security
1739 problem (CVE-2009-3555) at the cost of breaking all
1740 renegotiation. Renegotiation can be re-enabled by setting
1741 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1742 run-time. This is really not recommended unless you know what
1746 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1748 *) Don't set val to NULL when freeing up structures, it is freed up by
1749 underlying code. If sizeof(void *) > sizeof(long) this can result in
1750 zeroing past the valid field. (CVE-2009-0789)
1751 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1753 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1754 checked correctly. This would allow some invalid signed attributes to
1755 appear to verify correctly. (CVE-2009-0591)
1756 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1758 *) Reject UniversalString and BMPString types with invalid lengths. This
1759 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1760 a legal length. (CVE-2009-0590)
1763 *) Set S/MIME signing as the default purpose rather than setting it
1764 unconditionally. This allows applications to override it at the store
1768 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1769 to handle some structures.
1772 *) Improve efficiency of mem_gets: don't search whole buffer each time
1774 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1776 *) New -hex option for openssl rand.
1779 *) Print out UTF8String and NumericString when parsing ASN1.
1782 *) Support NumericString type for name components.
1785 *) Allow CC in the environment to override the automatically chosen
1786 compiler. Note that nothing is done to ensure flags work with the
1790 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1792 *) Properly check EVP_VerifyFinal() and similar return values
1794 [Ben Laurie, Bodo Moeller, Google Security Team]
1796 *) Enable TLS extensions by default.
1799 *) Allow the CHIL engine to be loaded, whether the application is
1800 multithreaded or not. (This does not release the developer from the
1801 obligation to set up the dynamic locking callbacks.)
1802 [Sander Temme <sander@temme.net>]
1804 *) Use correct exit code if there is an error in dgst command.
1805 [Steve Henson; problem pointed out by Roland Dirlewanger]
1807 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1808 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1811 *) Add experimental JPAKE support, including demo authentication in
1812 s_client and s_server.
1815 *) Set the comparison function in v3_addr_canonize().
1816 [Rob Austein <sra@hactrn.net>]
1818 *) Add support for XMPP STARTTLS in s_client.
1819 [Philip Paeps <philip@freebsd.org>]
1821 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1822 to ensure that even with this option, only ciphersuites in the
1823 server's preference list will be accepted. (Note that the option
1824 applies only when resuming a session, so the earlier behavior was
1825 just about the algorithm choice for symmetric cryptography.)
1828 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1830 *) Fix NULL pointer dereference if a DTLS server received
1831 ChangeCipherSpec as first record (CVE-2009-1386).
1834 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1835 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1838 *) The fix in 0.9.8c that supposedly got rid of unsafe
1839 double-checked locking was incomplete for RSA blinding,
1840 addressing just one layer of what turns out to have been
1841 doubly unsafe triple-checked locking.
1843 So now fix this for real by retiring the MONT_HELPER macro
1844 in crypto/rsa/rsa_eay.c.
1846 [Bodo Moeller; problem pointed out by Marius Schilder]
1848 *) Various precautionary measures:
1850 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1852 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1853 (NB: This would require knowledge of the secret session ticket key
1854 to exploit, in which case you'd be SOL either way.)
1856 - Change bn_nist.c so that it will properly handle input BIGNUMs
1857 outside the expected range.
1859 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1862 [Neel Mehta, Bodo Moeller]
1864 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1865 the load fails. Useful for distros.
1866 [Ben Laurie and the FreeBSD team]
1868 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1871 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1874 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1876 This work was sponsored by Logica.
1879 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1880 keystores. Support for SSL/TLS client authentication too.
1881 Not compiled unless enable-capieng specified to Configure.
1883 This work was sponsored by Logica.
1886 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1887 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1888 attribute creation routines such as certifcate requests and PKCS#12
1892 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1894 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1895 handshake which could lead to a cilent crash as found using the
1896 Codenomicon TLS test suite (CVE-2008-1672)
1897 [Steve Henson, Mark Cox]
1899 *) Fix double free in TLS server name extensions which could lead to
1900 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1903 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1905 Clear the error queue to ensure that error entries left from
1906 older function calls do not interfere with the correct operation.
1907 [Lutz Jaenicke, Erik de Castro Lopo]
1909 *) Remove root CA certificates of commercial CAs:
1911 The OpenSSL project does not recommend any specific CA and does not
1912 have any policy with respect to including or excluding any CA.
1913 Therefore it does not make any sense to ship an arbitrary selection
1914 of root CA certificates with the OpenSSL software.
1917 *) RSA OAEP patches to fix two separate invalid memory reads.
1918 The first one involves inputs when 'lzero' is greater than
1919 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1920 before the beginning of from). The second one involves inputs where
1921 the 'db' section contains nothing but zeroes (there is a one-byte
1922 invalid read after the end of 'db').
1923 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1925 *) Partial backport from 0.9.9-dev:
1927 Introduce bn_mul_mont (dedicated Montgomery multiplication
1928 procedure) as a candidate for BIGNUM assembler implementation.
1929 While 0.9.9-dev uses assembler for various architectures, only
1930 x86_64 is available by default here in the 0.9.8 branch, and
1931 32-bit x86 is available through a compile-time setting.
1933 To try the 32-bit x86 assembler implementation, use Configure
1934 option "enable-montasm" (which exists only for this backport).
1936 As "enable-montasm" for 32-bit x86 disclaims code stability
1937 anyway, in this constellation we activate additional code
1938 backported from 0.9.9-dev for further performance improvements,
1939 namely BN_from_montgomery_word. (To enable this otherwise,
1940 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1942 [Andy Polyakov (backport partially by Bodo Moeller)]
1944 *) Add TLS session ticket callback. This allows an application to set
1945 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1946 values. This is useful for key rollover for example where several key
1947 sets may exist with different names.
1950 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1951 This was broken until now in 0.9.8 releases, such that the only way
1952 a registered ENGINE could be used (assuming it initialises
1953 successfully on the host) was to explicitly set it as the default
1954 for the relevant algorithms. This is in contradiction with 0.9.7
1955 behaviour and the documentation. With this fix, when an ENGINE is
1956 registered into a given algorithm's table of implementations, the
1957 'uptodate' flag is reset so that auto-discovery will be used next
1958 time a new context for that algorithm attempts to select an
1960 [Ian Lister (tweaked by Geoff Thorpe)]
1962 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1963 implemention in the following ways:
1965 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1968 Lack of BER streaming support means one pass streaming processing is
1969 only supported if data is detached: setting the streaming flag is
1970 ignored for embedded content.
1972 CMS support is disabled by default and must be explicitly enabled
1973 with the enable-cms configuration option.
1976 *) Update the GMP engine glue to do direct copies between BIGNUM and
1977 mpz_t when openssl and GMP use the same limb size. Otherwise the
1978 existing "conversion via a text string export" trick is still used.
1979 [Paul Sheer <paulsheer@gmail.com>]
1981 *) Zlib compression BIO. This is a filter BIO which compressed and
1982 uncompresses any data passed through it.
1985 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1986 RFC3394 compatible AES key wrapping.
1989 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1990 sets string data without copying. X509_ALGOR_set0() and
1991 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1992 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1993 from an X509_ATTRIBUTE structure optionally checking it occurs only
1994 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1998 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1999 to get the expected BN_FLG_CONSTTIME behavior.
2000 [Bodo Moeller (Google)]
2004 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2005 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2006 - added some more tests to do_tests.pl
2007 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2008 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2009 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2010 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2011 - various changes to netware.pl to enable gcc-cross builds on Win32
2013 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2014 - various changes to fix missing prototype warnings
2015 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2016 - added AES, WHIRLPOOL and CPUID assembler code to build files
2017 - added missing AES assembler make rules to mk1mf.pl
2018 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2019 [Guenter Knauf <eflash@gmx.net>]
2021 *) Implement certificate status request TLS extension defined in RFC3546.
2022 A client can set the appropriate parameters and receive the encoded
2023 OCSP response via a callback. A server can query the supplied parameters
2024 and set the encoded OCSP response in the callback. Add simplified examples
2025 to s_client and s_server.
2028 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2030 *) Fix various bugs:
2031 + Binary incompatibility of ssl_ctx_st structure
2032 + DTLS interoperation with non-compliant servers
2033 + Don't call get_session_cb() without proposed session
2034 + Fix ia64 assembler code
2035 [Andy Polyakov, Steve Henson]
2037 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2039 *) DTLS Handshake overhaul. There were longstanding issues with
2040 OpenSSL DTLS implementation, which were making it impossible for
2041 RFC 4347 compliant client to communicate with OpenSSL server.
2042 Unfortunately just fixing these incompatibilities would "cut off"
2043 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2044 server keeps tolerating non RFC compliant syntax. The opposite is
2045 not true, 0.9.8f client can not communicate with earlier server.
2046 This update even addresses CVE-2007-4995.
2049 *) Changes to avoid need for function casts in OpenSSL: some compilers
2050 (gcc 4.2 and later) reject their use.
2051 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2054 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2055 RFC4507bis. The encrypted ticket format is an encrypted encoded
2056 SSL_SESSION structure, that way new session features are automatically
2059 If a client application caches session in an SSL_SESSION structure
2060 support is transparent because tickets are now stored in the encoded
2063 The SSL_CTX structure automatically generates keys for ticket
2064 protection in servers so again support should be possible
2065 with no application modification.
2067 If a client or server wishes to disable RFC4507 support then the option
2068 SSL_OP_NO_TICKET can be set.
2070 Add a TLS extension debugging callback to allow the contents of any client
2071 or server extensions to be examined.
2073 This work was sponsored by Google.
2076 *) Add initial support for TLS extensions, specifically for the server_name
2077 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2078 have new members for a host name. The SSL data structure has an
2079 additional member SSL_CTX *initial_ctx so that new sessions can be
2080 stored in that context to allow for session resumption, even after the
2081 SSL has been switched to a new SSL_CTX in reaction to a client's
2082 server_name extension.
2084 New functions (subject to change):
2086 SSL_get_servername()
2087 SSL_get_servername_type()
2090 New CTRL codes and macros (subject to change):
2092 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2093 - SSL_CTX_set_tlsext_servername_callback()
2094 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2095 - SSL_CTX_set_tlsext_servername_arg()
2096 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2098 openssl s_client has a new '-servername ...' option.
2100 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2101 '-key2 ...', '-servername_fatal' (subject to change). This allows
2102 testing the HostName extension for a specific single host name ('-cert'
2103 and '-key' remain fallbacks for handshakes without HostName
2104 negotiation). If the unrecogninzed_name alert has to be sent, this by
2105 default is a warning; it becomes fatal with the '-servername_fatal'
2108 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2110 *) Add AES and SSE2 assembly language support to VC++ build.
2113 *) Mitigate attack on final subtraction in Montgomery reduction.
2116 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2117 (which previously caused an internal error).
2120 *) Squeeze another 10% out of IGE mode when in != out.
2123 *) AES IGE mode speedup.
2124 [Dean Gaudet (Google)]
2126 *) Add the Korean symmetric 128-bit cipher SEED (see
2127 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2128 add SEED ciphersuites from RFC 4162:
2130 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2131 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2132 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2133 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2135 To minimize changes between patchlevels in the OpenSSL 0.9.8
2136 series, SEED remains excluded from compilation unless OpenSSL
2137 is configured with 'enable-seed'.
2138 [KISA, Bodo Moeller]
2140 *) Mitigate branch prediction attacks, which can be practical if a
2141 single processor is shared, allowing a spy process to extract
2142 information. For detailed background information, see
2143 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2144 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2145 and Necessary Software Countermeasures"). The core of the change
2146 are new versions BN_div_no_branch() and
2147 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2148 respectively, which are slower, but avoid the security-relevant
2149 conditional branches. These are automatically called by BN_div()
2150 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2151 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2152 remove a conditional branch.
2154 BN_FLG_CONSTTIME is the new name for the previous
2155 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2156 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2157 in the exponent causes BN_mod_exp_mont() to use the alternative
2158 implementation in BN_mod_exp_mont_consttime().) The old name
2159 remains as a deprecated alias.
2161 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2162 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2163 constant-time implementations for more than just exponentiation.
2164 Here too the old name is kept as a deprecated alias.
2166 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2167 the BN_BLINDING structure gets an independent copy of the
2168 modulus. This means that the previous "BIGNUM *m" argument to
2169 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2170 essentially becomes "const BIGNUM *m", although we can't actually
2171 change this in the header file before 0.9.9. It allows
2172 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2173 enable BN_FLG_CONSTTIME.
2175 [Matthew D Wood (Intel Corp)]
2177 *) In the SSL/TLS server implementation, be strict about session ID
2178 context matching (which matters if an application uses a single
2179 external cache for different purposes). Previously,
2180 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2181 set. This did ensure strict client verification, but meant that,
2182 with applications using a single external cache for quite
2183 different requirements, clients could circumvent ciphersuite
2184 restrictions for a given session ID context by starting a session
2185 in a different context.
2188 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2189 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2190 authentication-only ciphersuites.
2193 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2194 not complete and could lead to a possible single byte overflow
2195 (CVE-2007-5135) [Ben Laurie]
2197 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2199 *) Since AES128 and AES256 (and similarly Camellia128 and
2200 Camellia256) share a single mask bit in the logic of
2201 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2202 kludge to work properly if AES128 is available and AES256 isn't
2203 (or if Camellia128 is available and Camellia256 isn't).
2206 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2207 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2208 When a point or a seed is encoded in a BIT STRING, we need to
2209 prevent the removal of trailing zero bits to get the proper DER
2210 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2211 of a NamedBitList, for which trailing 0 bits need to be removed.)
2214 *) Have SSL/TLS server implementation tolerate "mismatched" record
2215 protocol version while receiving ClientHello even if the
2216 ClientHello is fragmented. (The server can't insist on the
2217 particular protocol version it has chosen before the ServerHello
2218 message has informed the client about his choice.)
2221 *) Add RFC 3779 support.
2222 [Rob Austein for ARIN, Ben Laurie]
2224 *) Load error codes if they are not already present instead of using a
2225 static variable. This allows them to be cleanly unloaded and reloaded.
2226 Improve header file function name parsing.
2229 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2230 or CAPABILITY handshake as required by RFCs.
2233 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2235 *) Introduce limits to prevent malicious keys being able to
2236 cause a denial of service. (CVE-2006-2940)
2237 [Steve Henson, Bodo Moeller]
2239 *) Fix ASN.1 parsing of certain invalid structures that can result
2240 in a denial of service. (CVE-2006-2937) [Steve Henson]
2242 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2243 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2245 *) Fix SSL client code which could crash if connecting to a
2246 malicious SSLv2 server. (CVE-2006-4343)
2247 [Tavis Ormandy and Will Drewry, Google Security Team]
2249 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2250 match only those. Before that, "AES256-SHA" would be interpreted
2251 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2252 the same strength classification in 0.9.7h) as we currently only
2253 have a single AES bit in the ciphersuite description bitmap.
2254 That change, however, also applied to ciphersuite strings such as
2255 "RC4-MD5" that intentionally matched multiple ciphersuites --
2256 namely, SSL 2.0 ciphersuites in addition to the more common ones
2257 from SSL 3.0/TLS 1.0.
2259 So we change the selection algorithm again: Naming an explicit
2260 ciphersuite selects this one ciphersuite, and any other similar
2261 ciphersuite (same bitmap) from *other* protocol versions.
2262 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2263 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2265 Since SSL 2.0 does not have any ciphersuites for which the
2266 128/256 bit distinction would be relevant, this works for now.
2267 The proper fix will be to use different bits for AES128 and
2268 AES256, which would have avoided the problems from the beginning;
2269 however, bits are scarce, so we can only do this in a new release
2270 (not just a patchlevel) when we can change the SSL_CIPHER
2271 definition to split the single 'unsigned long mask' bitmap into
2272 multiple values to extend the available space.
2276 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2278 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2279 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2281 *) Add AES IGE and biIGE modes.
2284 *) Change the Unix randomness entropy gathering to use poll() when
2285 possible instead of select(), since the latter has some
2286 undesirable limitations.
2287 [Darryl Miles via Richard Levitte and Bodo Moeller]
2289 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2290 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2291 cannot be implicitly activated as part of, e.g., the "AES" alias.
2292 However, please upgrade to OpenSSL 0.9.9[-dev] for
2293 non-experimental use of the ECC ciphersuites to get TLS extension
2294 support, which is required for curve and point format negotiation
2295 to avoid potential handshake problems.
2298 *) Disable rogue ciphersuites:
2300 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2301 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2302 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2304 The latter two were purportedly from
2305 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2308 Also deactivate the remaining ciphersuites from
2309 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2310 unofficial, and the ID has long expired.
2313 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2314 dual-core machines) and other potential thread-safety issues.
2317 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2318 versions), which is now available for royalty-free use
2319 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2320 Also, add Camellia TLS ciphersuites from RFC 4132.
2322 To minimize changes between patchlevels in the OpenSSL 0.9.8
2323 series, Camellia remains excluded from compilation unless OpenSSL
2324 is configured with 'enable-camellia'.
2327 *) Disable the padding bug check when compression is in use. The padding
2328 bug check assumes the first packet is of even length, this is not
2329 necessarily true if compresssion is enabled and can result in false
2330 positives causing handshake failure. The actual bug test is ancient
2331 code so it is hoped that implementations will either have fixed it by
2332 now or any which still have the bug do not support compression.
2335 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2337 *) When applying a cipher rule check to see if string match is an explicit
2338 cipher suite and only match that one cipher suite if it is.
2341 *) Link in manifests for VC++ if needed.
2342 [Austin Ziegler <halostatue@gmail.com>]
2344 *) Update support for ECC-based TLS ciphersuites according to
2345 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2346 TLS extensions, which are supported starting with the 0.9.9
2347 branch, not in the OpenSSL 0.9.8 branch).
2350 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2351 opaque EVP_CIPHER_CTX handling.
2354 *) Fixes and enhancements to zlib compression code. We now only use
2355 "zlib1.dll" and use the default __cdecl calling convention on Win32
2356 to conform with the standards mentioned here:
2357 http://www.zlib.net/DLL_FAQ.txt
2358 Static zlib linking now works on Windows and the new --with-zlib-include
2359 --with-zlib-lib options to Configure can be used to supply the location
2360 of the headers and library. Gracefully handle case where zlib library
2364 *) Several fixes and enhancements to the OID generation code. The old code
2365 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2366 handle numbers larger than ULONG_MAX, truncated printing and had a
2367 non standard OBJ_obj2txt() behaviour.
2370 *) Add support for building of engines under engine/ as shared libraries
2371 under VC++ build system.
2374 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2375 Hopefully, we will not see any false combination of paths any more.
2378 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2380 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2381 (part of SSL_OP_ALL). This option used to disable the
2382 countermeasure against man-in-the-middle protocol-version
2383 rollback in the SSL 2.0 server implementation, which is a bad
2384 idea. (CVE-2005-2969)
2386 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2387 for Information Security, National Institute of Advanced Industrial
2388 Science and Technology [AIST], Japan)]
2390 *) Add two function to clear and return the verify parameter flags.
2393 *) Keep cipherlists sorted in the source instead of sorting them at
2394 runtime, thus removing the need for a lock.
2397 *) Avoid some small subgroup attacks in Diffie-Hellman.
2398 [Nick Mathewson and Ben Laurie]
2400 *) Add functions for well-known primes.
2403 *) Extended Windows CE support.
2404 [Satoshi Nakamura and Andy Polyakov]
2406 *) Initialize SSL_METHOD structures at compile time instead of during
2407 runtime, thus removing the need for a lock.
2410 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2411 attempting to decrypt each encrypted key in turn. Add support to
2415 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2417 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2420 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2423 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2424 key into the same file any more.
2427 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2430 *) Add -utf8 command line and config file option to 'ca'.
2431 [Stefan <stf@udoma.org]
2433 *) Removed the macro des_crypt(), as it seems to conflict with some
2434 libraries. Use DES_crypt().
2437 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2438 involves renaming the source and generated shared-libs for
2439 both. The engines will accept the corrected or legacy ids
2440 ('ncipher' and '4758_cca' respectively) when binding. NB,
2441 this only applies when building 'shared'.
2442 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2444 *) Add attribute functions to EVP_PKEY structure. Modify
2445 PKCS12_create() to recognize a CSP name attribute and
2446 use it. Make -CSP option work again in pkcs12 utility.
2449 *) Add new functionality to the bn blinding code:
2450 - automatic re-creation of the BN_BLINDING parameters after
2451 a fixed number of uses (currently 32)
2452 - add new function for parameter creation
2453 - introduce flags to control the update behaviour of the
2454 BN_BLINDING parameters
2455 - hide BN_BLINDING structure
2456 Add a second BN_BLINDING slot to the RSA structure to improve
2457 performance when a single RSA object is shared among several
2461 *) Add support for DTLS.
2462 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2464 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2465 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2468 *) Remove buggy and incompletet DH cert support from
2469 ssl/ssl_rsa.c and ssl/s3_both.c
2472 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2473 the apps/openssl applications.
2476 *) Compile clean with "-Wall -Wmissing-prototypes
2477 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2478 DEBUG_SAFESTACK must also be set.
2481 *) Change ./Configure so that certain algorithms can be disabled by default.
2482 The new counterpiece to "no-xxx" is "enable-xxx".
2484 The patented RC5 and MDC2 algorithms will now be disabled unless
2485 "enable-rc5" and "enable-mdc2", respectively, are specified.
2487 (IDEA remains enabled despite being patented. This is because IDEA
2488 is frequently required for interoperability, and there is no license
2489 fee for non-commercial use. As before, "no-idea" can be used to
2490 avoid this algorithm.)
2494 *) Add processing of proxy certificates (see RFC 3820). This work was
2495 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2496 EGEE (Enabling Grids for E-science in Europe).
2499 *) RC4 performance overhaul on modern architectures/implementations, such
2500 as Intel P4, IA-64 and AMD64.
2503 *) New utility extract-section.pl. This can be used specify an alternative
2504 section number in a pod file instead of having to treat each file as
2505 a separate case in Makefile. This can be done by adding two lines to the
2508 =for comment openssl_section:XXX
2510 The blank line is mandatory.
2514 *) New arguments -certform, -keyform and -pass for s_client and s_server
2515 to allow alternative format key and certificate files and passphrase
2519 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2520 update associated structures and add various utility functions.
2522 Add new policy related verify parameters, include policy checking in
2523 standard verify code. Enhance 'smime' application with extra parameters
2524 to support policy checking and print out.
2527 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2528 Nehemiah processors. These extensions support AES encryption in hardware
2529 as well as RNG (though RNG support is currently disabled).
2530 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2532 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2535 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2536 [Andy Polyakov and a number of other people]
2538 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2539 implementation contributed by IBM.
2540 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2542 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2543 exponent rather than 'unsigned long'. There is a corresponding change to
2544 the new 'rsa_keygen' element of the RSA_METHOD structure.
2545 [Jelte Jansen, Geoff Thorpe]
2547 *) Functionality for creating the initial serial number file is now
2548 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2550 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2551 number file to 1, which is bound to cause problems. To avoid
2552 the problems while respecting compatibility between different 0.9.7
2553 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2554 CA.pl for serial number initialization. With the new release 0.9.8,
2555 we can fix the problem directly in the 'ca' utility.)
2558 *) Reduced header interdepencies by declaring more opaque objects in
2559 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2560 give fewer recursive includes, which could break lazy source code - so
2561 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2562 developers should define this symbol when building and using openssl to
2563 ensure they track the recommended behaviour, interfaces, [etc], but
2564 backwards-compatible behaviour prevails when this isn't defined.
2567 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2570 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2571 This will generate a random key of the appropriate length based on the
2572 cipher context. The EVP_CIPHER can provide its own random key generation
2573 routine to support keys of a specific form. This is used in the des and
2574 3des routines to generate a key of the correct parity. Update S/MIME
2575 code to use new functions and hence generate correct parity DES keys.
2576 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2577 valid (weak or incorrect parity).
2580 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2581 as looking them up. This is useful when the verified structure may contain
2582 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2583 present unless the new PKCS7_NO_CRL flag is asserted.
2586 *) Extend ASN1 oid configuration module. It now additionally accepts the
2589 shortName = some long name, 1.2.3.4
2592 *) Reimplemented the BN_CTX implementation. There is now no more static
2593 limitation on the number of variables it can handle nor the depth of the
2594 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2595 information can now expand as required, and rather than having a single
2596 static array of bignums, BN_CTX now uses a linked-list of such arrays
2597 allowing it to expand on demand whilst maintaining the usefulness of
2598 BN_CTX's "bundling".
2601 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2602 to allow all RSA operations to function using a single BN_CTX.
2605 *) Preliminary support for certificate policy evaluation and checking. This
2606 is initially intended to pass the tests outlined in "Conformance Testing
2607 of Relying Party Client Certificate Path Processing Logic" v1.07.
2610 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2611 remained unused and not that useful. A variety of other little bignum
2612 tweaks and fixes have also been made continuing on from the audit (see
2616 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2617 associated ASN1, EVP and SSL functions and old ASN1 macros.
2620 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2621 and this should never fail. So the return value from the use of
2622 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2623 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2626 *) BN_CTX_get() should return zero-valued bignums, providing the same
2627 initialised value as BN_new().
2628 [Geoff Thorpe, suggested by Ulf Möller]
2630 *) Support for inhibitAnyPolicy certificate extension.
2633 *) An audit of the BIGNUM code is underway, for which debugging code is
2634 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2635 is considered valid when processing BIGNUMs, and causes execution to
2636 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2637 further steps are taken to deliberately pollute unused data in BIGNUM
2638 structures to try and expose faulty code further on. For now, openssl will
2639 (in its default mode of operation) continue to tolerate the inconsistent
2640 forms that it has tolerated in the past, but authors and packagers should
2641 consider trying openssl and their own applications when compiled with
2642 these debugging symbols defined. It will help highlight potential bugs in
2643 their own code, and will improve the test coverage for OpenSSL itself. At
2644 some point, these tighter rules will become openssl's default to improve
2645 maintainability, though the assert()s and other overheads will remain only
2646 in debugging configurations. See bn.h for more details.
2647 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2649 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2650 that can only be obtained through BN_CTX_new() (which implicitly
2651 initialises it). The presence of this function only made it possible
2652 to overwrite an existing structure (and cause memory leaks).
2655 *) Because of the callback-based approach for implementing LHASH as a
2656 template type, lh_insert() adds opaque objects to hash-tables and
2657 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2658 to clean up those corresponding objects before destroying the hash table
2659 (and losing the object pointers). So some over-zealous constifications in
2660 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2661 objects as "const" and the lh_doall[_arg] callback wrappers are not
2662 prototyped to have "const" restrictions on the object pointers they are
2663 given (and so aren't required to cast them away any more).
2666 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2667 (speed) prefers to use its own implementation. The two implementations
2668 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2669 its object type properly exposed (MS_TM) instead of casting to/from "char
2670 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2671 aren't necessarily the greatest nomenclatures - but this is what was used
2672 internally to the implementation so I've used that for now.
2675 *) Ensure that deprecated functions do not get compiled when
2676 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2677 the self-tests were still using deprecated key-generation functions so
2678 these have been updated also.
2681 *) Reorganise PKCS#7 code to separate the digest location functionality
2682 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2683 New function PKCS7_set_digest() to set the digest type for PKCS#7
2684 digestedData type. Add additional code to correctly generate the
2685 digestedData type and add support for this type in PKCS7 initialization
2689 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2690 structure of type "other".
2693 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2694 sure the loop does correctly stop and breaking ("division by zero")
2695 modulus operations are not performed. The (pre-generated) prime
2696 table crypto/bn/bn_prime.h was already correct, but it could not be
2697 re-generated on some platforms because of the "division by zero"
2698 situation in the script.
2699 [Ralf S. Engelschall]
2701 *) Update support for ECC-based TLS ciphersuites according to
2702 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2703 SHA-1 now is only used for "small" curves (where the
2704 representation of a field element takes up to 24 bytes); for
2705 larger curves, the field element resulting from ECDH is directly
2706 used as premaster secret.
2707 [Douglas Stebila (Sun Microsystems Laboratories)]
2709 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2710 curve secp160r1 to the tests.
2711 [Douglas Stebila (Sun Microsystems Laboratories)]
2713 *) Add the possibility to load symbols globally with DSO.
2714 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2716 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2717 control of the error stack.
2720 *) Add support for STORE in ENGINE.
2723 *) Add the STORE type. The intention is to provide a common interface
2724 to certificate and key stores, be they simple file-based stores, or
2725 HSM-type store, or LDAP stores, or...
2726 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2729 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2730 pass a list of arguments to any function as well as provide a way
2731 for a function to pass data back to the caller.
2734 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2735 works like BUF_strdup() but can be used to duplicate a portion of
2736 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2740 *) Add the function sk_find_ex() which works like sk_find(), but will
2741 return an index to an element even if an exact match couldn't be
2742 found. The index is guaranteed to point at the element where the
2743 searched-for key would be inserted to preserve sorting order.
2746 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2747 takes an extra flags argument for optional functionality. Currently,
2748 the following flags are defined:
2750 OBJ_BSEARCH_VALUE_ON_NOMATCH
2751 This one gets OBJ_bsearch_ex() to return a pointer to the first
2752 element where the comparing function returns a negative or zero
2755 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2756 This one gets OBJ_bsearch_ex() to return a pointer to the first
2757 element where the comparing function returns zero. This is useful
2758 if there are more than one element where the comparing function
2762 *) Make it possible to create self-signed certificates with 'openssl ca'
2763 in such a way that the self-signed certificate becomes part of the
2764 CA database and uses the same mechanisms for serial number generation
2765 as all other certificate signing. The new flag '-selfsign' enables
2766 this functionality. Adapt CA.sh and CA.pl.in.
2769 *) Add functionality to check the public key of a certificate request
2770 against a given private. This is useful to check that a certificate
2771 request can be signed by that key (self-signing).
2774 *) Make it possible to have multiple active certificates with the same
2775 subject in the CA index file. This is done only if the keyword
2776 'unique_subject' is set to 'no' in the main CA section (default
2777 if 'CA_default') of the configuration file. The value is saved
2778 with the database itself in a separate index attribute file,
2779 named like the index file with '.attr' appended to the name.
2782 *) Generate muti valued AVAs using '+' notation in config files for
2786 *) Support for nameConstraints certificate extension.
2789 *) Support for policyConstraints certificate extension.
2792 *) Support for policyMappings certificate extension.
2795 *) Make sure the default DSA_METHOD implementation only uses its
2796 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2797 and change its own handlers to be NULL so as to remove unnecessary
2798 indirection. This lets alternative implementations fallback to the
2799 default implementation more easily.
2802 *) Support for directoryName in GeneralName related extensions
2806 *) Make it possible to link applications using Makefile.shared.
2807 Make that possible even when linking against static libraries!
2810 *) Support for single pass processing for S/MIME signing. This now
2811 means that S/MIME signing can be done from a pipe, in addition
2812 cleartext signing (multipart/signed type) is effectively streaming
2813 and the signed data does not need to be all held in memory.
2815 This is done with a new flag PKCS7_STREAM. When this flag is set
2816 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2817 is done after the data is output (and digests calculated) in
2818 SMIME_write_PKCS7().
2821 *) Add full support for -rpath/-R, both in shared libraries and
2822 applications, at least on the platforms where it's known how
2826 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2827 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2828 will now compute a table of multiples of the generator that
2829 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2830 faster (notably in the case of a single point multiplication,
2831 scalar * generator).
2832 [Nils Larsch, Bodo Moeller]
2834 *) IPv6 support for certificate extensions. The various extensions
2835 which use the IP:a.b.c.d can now take IPv6 addresses using the
2836 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2840 *) Added an ENGINE that implements RSA by performing private key
2841 exponentiations with the GMP library. The conversions to and from
2842 GMP's mpz_t format aren't optimised nor are any montgomery forms
2843 cached, and on x86 it appears OpenSSL's own performance has caught up.
2844 However there are likely to be other architectures where GMP could
2845 provide a boost. This ENGINE is not built in by default, but it can be
2846 specified at Configure time and should be accompanied by the necessary
2847 linker additions, eg;
2848 ./config -DOPENSSL_USE_GMP -lgmp
2851 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2852 testing availability of engines with "-t" - the old behaviour is
2853 produced by increasing the feature's verbosity with "-tt".
2856 *) ECDSA routines: under certain error conditions uninitialized BN objects
2857 could be freed. Solution: make sure initialization is performed early
2858 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2862 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2863 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2864 software implementations. For DSA and DH, parameter generation can
2865 also be overriden by providing the appropriate method callbacks.
2868 *) Change the "progress" mechanism used in key-generation and
2869 primality testing to functions that take a new BN_GENCB pointer in
2870 place of callback/argument pairs. The new API functions have "_ex"
2871 postfixes and the older functions are reimplemented as wrappers for
2872 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2873 declarations of the old functions to help (graceful) attempts to
2874 migrate to the new functions. Also, the new key-generation API
2875 functions operate on a caller-supplied key-structure and return
2876 success/failure rather than returning a key or NULL - this is to
2877 help make "keygen" another member function of RSA_METHOD etc.
2879 Example for using the new callback interface:
2881 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2885 BN_GENCB_set(&my_cb, my_callback, my_arg);
2887 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2888 /* For the meaning of a, b in calls to my_callback(), see the
2889 * documentation of the function that calls the callback.
2890 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2891 * my_callback should return 1 if it wants BN_is_prime_ex()
2892 * to continue, or 0 to stop.
2897 *) Change the ZLIB compression method to be stateful, and make it
2898 available to TLS with the number defined in
2899 draft-ietf-tls-compression-04.txt.
2902 *) Add the ASN.1 structures and functions for CertificatePair, which
2903 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2905 CertificatePair ::= SEQUENCE {
2906 forward [0] Certificate OPTIONAL,
2907 reverse [1] Certificate OPTIONAL,
2908 -- at least one of the pair shall be present -- }
2910 Also implement the PEM functions to read and write certificate
2911 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2913 This needed to be defined, mostly for the sake of the LDAP
2914 attribute crossCertificatePair, but may prove useful elsewhere as
2918 *) Make it possible to inhibit symlinking of shared libraries in
2919 Makefile.shared, for Cygwin's sake.
2922 *) Extend the BIGNUM API by creating a function
2923 void BN_set_negative(BIGNUM *a, int neg);
2924 and a macro that behave like
2925 int BN_is_negative(const BIGNUM *a);
2927 to avoid the need to access 'a->neg' directly in applications.
2930 *) Implement fast modular reduction for pseudo-Mersenne primes
2931 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2932 EC_GROUP_new_curve_GFp() will now automatically use this
2934 [Nils Larsch <nla@trustcenter.de>]
2936 *) Add new lock type (CRYPTO_LOCK_BN).
2939 *) Change the ENGINE framework to automatically load engines
2940 dynamically from specific directories unless they could be
2941 found to already be built in or loaded. Move all the
2942 current engines except for the cryptodev one to a new
2944 The engines in engines/ are built as shared libraries if
2945 the "shared" options was given to ./Configure or ./config.
2946 Otherwise, they are inserted in libcrypto.a.
2947 /usr/local/ssl/engines is the default directory for dynamic
2948 engines, but that can be overriden at configure time through
2949 the usual use of --prefix and/or --openssldir, and at run
2950 time with the environment variable OPENSSL_ENGINES.
2951 [Geoff Thorpe and Richard Levitte]
2953 *) Add Makefile.shared, a helper makefile to build shared
2954 libraries. Addapt Makefile.org.
2957 *) Add version info to Win32 DLLs.
2958 [Peter 'Luna' Runestig" <peter@runestig.com>]
2960 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2961 can be added using this API to created arbitrary PKCS#12
2962 files while avoiding the low level API.
2964 New options to PKCS12_create(), key or cert can be NULL and
2965 will then be omitted from the output file. The encryption
2966 algorithm NIDs can be set to -1 for no encryption, the mac
2967 iteration count can be set to 0 to omit the mac.
2969 Enhance pkcs12 utility by making the -nokeys and -nocerts
2970 options work when creating a PKCS#12 file. New option -nomac
2971 to omit the mac, NONE can be set for an encryption algorithm.
2972 New code is modified to use the enhanced PKCS12_create()
2973 instead of the low level API.
2976 *) Extend ASN1 encoder to support indefinite length constructed
2977 encoding. This can output sequences tags and octet strings in
2978 this form. Modify pk7_asn1.c to support indefinite length
2979 encoding. This is experimental and needs additional code to
2980 be useful, such as an ASN1 bio and some enhanced streaming
2983 Extend template encode functionality so that tagging is passed
2984 down to the template encoder.
2987 *) Let 'openssl req' fail if an argument to '-newkey' is not
2988 recognized instead of using RSA as a default.
2991 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2992 As these are not official, they are not included in "ALL";
2993 the "ECCdraft" ciphersuite group alias can be used to select them.
2994 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2996 *) Add ECDH engine support.
2997 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2999 *) Add ECDH in new directory crypto/ecdh/.
3000 [Douglas Stebila (Sun Microsystems Laboratories)]
3002 *) Let BN_rand_range() abort with an error after 100 iterations
3003 without success (which indicates a broken PRNG).
3006 *) Change BN_mod_sqrt() so that it verifies that the input value
3007 is really the square of the return value. (Previously,
3008 BN_mod_sqrt would show GIGO behaviour.)
3011 *) Add named elliptic curves over binary fields from X9.62, SECG,
3012 and WAP/WTLS; add OIDs that were still missing.
3014 [Sheueling Chang Shantz and Douglas Stebila
3015 (Sun Microsystems Laboratories)]
3017 *) Extend the EC library for elliptic curves over binary fields
3018 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3021 EC_GF2m_simple_method
3025 EC_GROUP_new_curve_GF2m
3026 EC_GROUP_set_curve_GF2m
3027 EC_GROUP_get_curve_GF2m
3028 EC_POINT_set_affine_coordinates_GF2m
3029 EC_POINT_get_affine_coordinates_GF2m
3030 EC_POINT_set_compressed_coordinates_GF2m
3032 Point compression for binary fields is disabled by default for
3033 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3036 As binary polynomials are represented as BIGNUMs, various members
3037 of the EC_GROUP and EC_POINT data structures can be shared
3038 between the implementations for prime fields and binary fields;
3039 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3040 are essentially identical to their ..._GFp counterparts.
3041 (For simplicity, the '..._GFp' prefix has been dropped from
3042 various internal method names.)
3044 An internal 'field_div' method (similar to 'field_mul' and
3045 'field_sqr') has been added; this is used only for binary fields.
3047 [Sheueling Chang Shantz and Douglas Stebila
3048 (Sun Microsystems Laboratories)]
3050 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3051 through methods ('mul', 'precompute_mult').
3053 The generic implementations (now internally called 'ec_wNAF_mul'
3054 and 'ec_wNAF_precomputed_mult') remain the default if these
3055 methods are undefined.
3057 [Sheueling Chang Shantz and Douglas Stebila
3058 (Sun Microsystems Laboratories)]
3060 *) New function EC_GROUP_get_degree, which is defined through
3061 EC_METHOD. For curves over prime fields, this returns the bit
3062 length of the modulus.
3064 [Sheueling Chang Shantz and Douglas Stebila
3065 (Sun Microsystems Laboratories)]
3067 *) New functions EC_GROUP_dup, EC_POINT_dup.
3068 (These simply call ..._new and ..._copy).
3070 [Sheueling Chang Shantz and Douglas Stebila
3071 (Sun Microsystems Laboratories)]
3073 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3074 Polynomials are represented as BIGNUMs (where the sign bit is not
3075 used) in the following functions [macros]:
3078 BN_GF2m_sub [= BN_GF2m_add]
3079 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3080 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3081 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3083 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3084 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3085 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3086 BN_GF2m_cmp [= BN_ucmp]
3088 (Note that only the 'mod' functions are actually for fields GF(2^m).
3089 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3091 For some functions, an the irreducible polynomial defining a
3092 field can be given as an 'unsigned int[]' with strictly
3093 decreasing elements giving the indices of those bits that are set;
3094 i.e., p[] represents the polynomial
3095 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3097 p[0] > p[1] > ... > p[k] = 0.
3098 This applies to the following functions:
3103 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3104 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3106 BN_GF2m_mod_sqrt_arr
3107 BN_GF2m_mod_solve_quad_arr
3111 Conversion can be performed by the following functions:
3116 bntest.c has additional tests for binary polynomial arithmetic.
3118 Two implementations for BN_GF2m_mod_div() are available.
3119 The default algorithm simply uses BN_GF2m_mod_inv() and
3120 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3121 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3122 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3124 [Sheueling Chang Shantz and Douglas Stebila
3125 (Sun Microsystems Laboratories)]
3127 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3128 functionality is disabled at compile-time.
3129 [Douglas Stebila <douglas.stebila@sun.com>]
3131 *) Change default behaviour of 'openssl asn1parse' so that more
3132 information is visible when viewing, e.g., a certificate:
3134 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3135 mode the content of non-printable OCTET STRINGs is output in a
3136 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3137 avoid the appearance of a printable string.
3138 [Nils Larsch <nla@trustcenter.de>]
3140 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3142 EC_GROUP_set_asn1_flag()
3143 EC_GROUP_get_asn1_flag()
3144 EC_GROUP_set_point_conversion_form()
3145 EC_GROUP_get_point_conversion_form()
3146 These control ASN1 encoding details:
3147 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3148 has been set to OPENSSL_EC_NAMED_CURVE.
3149 - Points are encoded in uncompressed form by default; options for
3150 asn1_for are as for point2oct, namely
3151 POINT_CONVERSION_COMPRESSED
3152 POINT_CONVERSION_UNCOMPRESSED
3153 POINT_CONVERSION_HYBRID
3155 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3158 EC_GROUP_get0_seed()
3159 EC_GROUP_get_seed_len()
3160 This is used only for ASN1 purposes (so far).
3161 [Nils Larsch <nla@trustcenter.de>]
3163 *) Add 'field_type' member to EC_METHOD, which holds the NID
3164 of the appropriate field type OID. The new function
3165 EC_METHOD_get_field_type() returns this value.
3166 [Nils Larsch <nla@trustcenter.de>]
3171 EC_POINT_point2hex()
3172 EC_POINT_hex2point()
3173 providing useful interfaces to EC_POINT_point2oct() and
3174 EC_POINT_oct2point().
3175 [Nils Larsch <nla@trustcenter.de>]
3177 *) Change internals of the EC library so that the functions
3178 EC_GROUP_set_generator()
3179 EC_GROUP_get_generator()
3180 EC_GROUP_get_order()
3181 EC_GROUP_get_cofactor()
3182 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3183 to methods, which would lead to unnecessary code duplication when
3184 adding different types of curves.
3185 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3187 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3188 arithmetic, and such that modified wNAFs are generated
3189 (which avoid length expansion in many cases).
3192 *) Add a function EC_GROUP_check_discriminant() (defined via
3193 EC_METHOD) that verifies that the curve discriminant is non-zero.
3195 Add a function EC_GROUP_check() that makes some sanity tests
3196 on a EC_GROUP, its generator and order. This includes
3197 EC_GROUP_check_discriminant().
3198 [Nils Larsch <nla@trustcenter.de>]
3200 *) Add ECDSA in new directory crypto/ecdsa/.
3202 Add applications 'openssl ecparam' and 'openssl ecdsa'
3203 (these are based on 'openssl dsaparam' and 'openssl dsa').
3205 ECDSA support is also included in various other files across the
3206 library. Most notably,
3207 - 'openssl req' now has a '-newkey ecdsa:file' option;
3208 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3209 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3210 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3211 them suitable for ECDSA where domain parameters must be
3212 extracted before the specific public key;
3213 - ECDSA engine support has been added.
3214 [Nils Larsch <nla@trustcenter.de>]
3216 *) Include some named elliptic curves, and add OIDs from X9.62,
3217 SECG, and WAP/WTLS. Each curve can be obtained from the new
3219 EC_GROUP_new_by_curve_name(),
3220 and the list of available named curves can be obtained with
3221 EC_get_builtin_curves().
3222 Also add a 'curve_name' member to EC_GROUP objects, which can be
3224 EC_GROUP_set_curve_name()
3225 EC_GROUP_get_curve_name()
3226 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3228 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3229 was actually never needed) and in BN_mul(). The removal in BN_mul()
3230 required a small change in bn_mul_part_recursive() and the addition
3231 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3232 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3233 bn_sub_words() and bn_add_words() except they take arrays with
3237 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3239 *) Cleanse PEM buffers before freeing them since they may contain
3241 [Benjamin Bennett <ben@psc.edu>]
3243 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3244 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3245 authentication-only ciphersuites.
3248 *) Since AES128 and AES256 share a single mask bit in the logic of
3249 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3250 kludge to work properly if AES128 is available and AES256 isn't.
3253 *) Expand security boundary to match 1.1.1 module.
3256 *) Remove redundant features: hash file source, editing of test vectors
3257 modify fipsld to use external fips_premain.c signature.
3260 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3261 run algorithm test programs.
3264 *) Make algorithm test programs more tolerant of whitespace.
3267 *) Have SSL/TLS server implementation tolerate "mismatched" record
3268 protocol version while receiving ClientHello even if the
3269 ClientHello is fragmented. (The server can't insist on the
3270 particular protocol version it has chosen before the ServerHello
3271 message has informed the client about his choice.)
3274 *) Load error codes if they are not already present instead of using a
3275 static variable. This allows them to be cleanly unloaded and reloaded.
3278 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3280 *) Introduce limits to prevent malicious keys being able to
3281 cause a denial of service. (CVE-2006-2940)
3282 [Steve Henson, Bodo Moeller]
3284 *) Fix ASN.1 parsing of certain invalid structures that can result
3285 in a denial of service. (CVE-2006-2937) [Steve Henson]
3287 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3288 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3290 *) Fix SSL client code which could crash if connecting to a
3291 malicious SSLv2 server. (CVE-2006-4343)
3292 [Tavis Ormandy and Will Drewry, Google Security Team]
3294 *) Change ciphersuite string processing so that an explicit
3295 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3296 will no longer include "AES128-SHA"), and any other similar
3297 ciphersuite (same bitmap) from *other* protocol versions (so that
3298 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3299 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3300 changes from 0.9.8b and 0.9.8d.
3303 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3305 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3306 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3308 *) Change the Unix randomness entropy gathering to use poll() when
3309 possible instead of select(), since the latter has some
3310 undesirable limitations.
3311 [Darryl Miles via Richard Levitte and Bodo Moeller]
3313 *) Disable rogue ciphersuites:
3315 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3316 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3317 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3319 The latter two were purportedly from
3320 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3323 Also deactive the remaining ciphersuites from
3324 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3325 unofficial, and the ID has long expired.
3328 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3329 dual-core machines) and other potential thread-safety issues.
3332 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3334 *) Adapt fipsld and the build system to link against the validated FIPS
3335 module in FIPS mode.
3338 *) Fixes for VC++ 2005 build under Windows.
3341 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3342 from a Windows bash shell such as MSYS. It is autodetected from the
3343 "config" script when run from a VC++ environment. Modify standard VC++
3344 build to use fipscanister.o from the GNU make build.
3347 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3349 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3350 The value now differs depending on if you build for FIPS or not.
3351 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3352 safely run with a non-FIPSed libcrypto, as it may crash because of
3353 the difference induced by this change.
3356 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3358 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3359 (part of SSL_OP_ALL). This option used to disable the
3360 countermeasure against man-in-the-middle protocol-version
3361 rollback in the SSL 2.0 server implementation, which is a bad
3362 idea. (CVE-2005-2969)
3364 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3365 for Information Security, National Institute of Advanced Industrial
3366 Science and Technology [AIST], Japan)]
3368 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3369 mainly for FIPS compliance and not fully integrated at this stage.
3372 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3373 the exponentiation using a fixed-length exponent. (Otherwise,
3374 the information leaked through timing could expose the secret key
3375 after many signatures; cf. Bleichenbacher's attack on DSA with
3379 *) Make a new fixed-window mod_exp implementation the default for
3380 RSA, DSA, and DH private-key operations so that the sequence of
3381 squares and multiplies and the memory access pattern are
3382 independent of the particular secret key. This will mitigate
3383 cache-timing and potential related attacks.
3385 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3386 and this is automatically used by BN_mod_exp_mont() if the new flag
3387 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3388 will use this BN flag for private exponents unless the flag
3389 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3390 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3392 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3394 *) Change the client implementation for SSLv23_method() and
3395 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3396 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3397 (Previously, the SSL 2.0 backwards compatible Client Hello
3398 message format would be used even with SSL_OP_NO_SSLv2.)
3401 *) Add support for smime-type MIME parameter in S/MIME messages which some
3405 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3406 a threadsafe manner. Modify rsa code to use new function and add calls
3407 to dsa and dh code (which had race conditions before).
3410 *) Include the fixed error library code in the C error file definitions
3411 instead of fixing them up at runtime. This keeps the error code
3412 structures constant.
3415 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3417 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3420 *) Fixes for newer kerberos headers. NB: the casts are needed because
3421 the 'length' field is signed on one version and unsigned on another
3422 with no (?) obvious way to tell the difference, without these VC++
3423 complains. Also the "definition" of FAR (blank) is no longer included
3424 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3425 some needed definitions.
3428 *) Undo Cygwin change.
3431 *) Added support for proxy certificates according to RFC 3820.
3432 Because they may be a security thread to unaware applications,
3433 they must be explicitely allowed in run-time. See
3434 docs/HOWTO/proxy_certificates.txt for further information.
3437 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3439 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3440 server and client random values. Previously
3441 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3442 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3444 This change has negligible security impact because:
3446 1. Server and client random values still have 24 bytes of pseudo random
3449 2. Server and client random values are sent in the clear in the initial
3452 3. The master secret is derived using the premaster secret (48 bytes in
3453 size for static RSA ciphersuites) as well as client server and random
3456 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3459 [Stephen Henson, reported by UK NISCC]
3461 *) Use Windows randomness collection on Cygwin.
3464 *) Fix hang in EGD/PRNGD query when communication socket is closed
3465 prematurely by EGD/PRNGD.
3466 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3468 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3471 *) Back-port of selected performance improvements from development
3472 branch, as well as improved support for PowerPC platforms.
3475 *) Add lots of checks for memory allocation failure, error codes to indicate
3476 failure and freeing up memory if a failure occurs.
3477 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3479 *) Add new -passin argument to dgst.
3482 *) Perform some character comparisons of different types in X509_NAME_cmp:
3483 this is needed for some certificates that reencode DNs into UTF8Strings
3484 (in violation of RFC3280) and can't or wont issue name rollover
3488 *) Make an explicit check during certificate validation to see that
3489 the CA setting in each certificate on the chain is correct. As a
3490 side effect always do the following basic checks on extensions,
3491 not just when there's an associated purpose to the check:
3493 - if there is an unhandled critical extension (unless the user
3494 has chosen to ignore this fault)
3495 - if the path length has been exceeded (if one is set at all)
3496 - that certain extensions fit the associated purpose (if one has
3500 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3502 *) Avoid a race condition when CRLs are checked in a multi threaded
3503 environment. This would happen due to the reordering of the revoked
3504 entries during signature checking and serial number lookup. Now the
3505 encoding is cached and the serial number sort performed under a lock.
3506 Add new STACK function sk_is_sorted().
3509 *) Add Delta CRL to the extension code.
3512 *) Various fixes to s3_pkt.c so alerts are sent properly.
3513 [David Holmes <d.holmes@f5.com>]
3515 *) Reduce the chances of duplicate issuer name and serial numbers (in
3516 violation of RFC3280) using the OpenSSL certificate creation utilities.
3517 This is done by creating a random 64 bit value for the initial serial
3518 number when a serial number file is created or when a self signed
3519 certificate is created using 'openssl req -x509'. The initial serial
3520 number file is created using 'openssl x509 -next_serial' in CA.pl
3521 rather than being initialized to 1.
3524 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3526 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3527 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3528 [Joe Orton, Steve Henson]
3530 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3532 [Joe Orton, Steve Henson]
3534 *) Make it possible to have multiple active certificates with the same
3535 subject in the CA index file. This is done only if the keyword
3536 'unique_subject' is set to 'no' in the main CA section (default
3537 if 'CA_default') of the configuration file. The value is saved
3538 with the database itself in a separate index attribute file,
3539 named like the index file with '.attr' appended to the name.
3542 *) X509 verify fixes. Disable broken certificate workarounds when
3543 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3544 keyUsage extension present. Don't accept CRLs with unhandled critical
3545 extensions: since verify currently doesn't process CRL extensions this
3546 rejects a CRL with *any* critical extensions. Add new verify error codes
3550 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3551 A clarification of RFC2560 will require the use of OCTET STRINGs and
3552 some implementations cannot handle the current raw format. Since OpenSSL
3553 copies and compares OCSP nonces as opaque blobs without any attempt at
3554 parsing them this should not create any compatibility issues.
3557 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3558 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3559 this HMAC (and other) operations are several times slower than OpenSSL
3563 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3564 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3566 *) Use the correct content when signing type "other".
3569 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3571 *) Fix various bugs revealed by running the NISCC test suite:
3573 Stop out of bounds reads in the ASN1 code when presented with
3574 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3576 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3578 If verify callback ignores invalid public key errors don't try to check
3579 certificate signature with the NULL public key.
3583 *) New -ignore_err option in ocsp application to stop the server
3584 exiting on the first error in a request.
3587 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3588 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3592 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3593 extra data after the compression methods not only for TLS 1.0
3594 but also for SSL 3.0 (as required by the specification).
3595 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3597 *) Change X509_certificate_type() to mark the key as exported/exportable
3598 when it's 512 *bits* long, not 512 bytes.
3601 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3602 blocks during encryption.
3605 *) Various fixes to base64 BIO and non blocking I/O. On write
3606 flushes were not handled properly if the BIO retried. On read
3607 data was not being buffered properly and had various logic bugs.
3608 This also affects blocking I/O when the data being decoded is a
3612 *) Various S/MIME bugfixes and compatibility changes:
3613 output correct application/pkcs7 MIME type if
3614 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3615 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3616 of files as .eml work). Correctly handle very long lines in MIME
3620 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3622 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3623 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3624 a protocol version number mismatch like a decryption error
3625 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3628 *) Turn on RSA blinding by default in the default implementation
3629 to avoid a timing attack. Applications that don't want it can call
3630 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3631 They would be ill-advised to do so in most cases.
3632 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3634 *) Change RSA blinding code so that it works when the PRNG is not
3635 seeded (in this case, the secret RSA exponent is abused as
3636 an unpredictable seed -- if it is not unpredictable, there
3637 is no point in blinding anyway). Make RSA blinding thread-safe
3638 by remembering the creator's thread ID in rsa->blinding and
3639 having all other threads use local one-time blinding factors
3640 (this requires more computation than sharing rsa->blinding, but
3641 avoids excessive locking; and if an RSA object is not shared
3642 between threads, blinding will still be very fast).
3645 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3646 ENGINE as defaults for all supported algorithms irrespective of
3647 the 'flags' parameter. 'flags' is now honoured, so applications
3648 should make sure they are passing it correctly.
3651 *) Target "mingw" now allows native Windows code to be generated in
3652 the Cygwin environment as well as with the MinGW compiler.
3655 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3657 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3658 via timing by performing a MAC computation even if incorrrect
3659 block cipher padding has been found. This is a countermeasure
3660 against active attacks where the attacker has to distinguish
3661 between bad padding and a MAC verification error. (CVE-2003-0078)
3663 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3664 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3665 Martin Vuagnoux (EPFL, Ilion)]
3667 *) Make the no-err option work as intended. The intention with no-err
3668 is not to have the whole error stack handling routines removed from
3669 libcrypto, it's only intended to remove all the function name and
3670 reason texts, thereby removing some of the footprint that may not
3671 be interesting if those errors aren't displayed anyway.
3673 NOTE: it's still possible for any application or module to have it's
3674 own set of error texts inserted. The routines are there, just not
3675 used by default when no-err is given.
3678 *) Add support for FreeBSD on IA64.
3679 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3681 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3682 Kerberos function mit_des_cbc_cksum(). Before this change,
3683 the value returned by DES_cbc_cksum() was like the one from
3684 mit_des_cbc_cksum(), except the bytes were swapped.
3685 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3687 *) Allow an application to disable the automatic SSL chain building.
3688 Before this a rather primitive chain build was always performed in
3689 ssl3_output_cert_chain(): an application had no way to send the
3690 correct chain if the automatic operation produced an incorrect result.
3692 Now the chain builder is disabled if either:
3694 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3696 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3698 The reasoning behind this is that an application would not want the
3699 auto chain building to take place if extra chain certificates are
3700 present and it might also want a means of sending no additional
3701 certificates (for example the chain has two certificates and the
3705 *) Add the possibility to build without the ENGINE framework.
3706 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3708 *) Under Win32 gmtime() can return NULL: check return value in
3709 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3712 *) DSA routines: under certain error conditions uninitialized BN objects
3713 could be freed. Solution: make sure initialization is performed early
3714 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3715 Nils Larsch <nla@trustcenter.de> via PR#459)
3718 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3719 checked on reconnect on the client side, therefore session resumption
3720 could still fail with a "ssl session id is different" error. This
3721 behaviour is masked when SSL_OP_ALL is used due to
3722 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3723 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3724 followup to PR #377.
3727 *) IA-32 assembler support enhancements: unified ELF targets, support
3728 for SCO/Caldera platforms, fix for Cygwin shared build.
3731 *) Add support for FreeBSD on sparc64. As a consequence, support for
3732 FreeBSD on non-x86 processors is separate from x86 processors on
3733 the config script, much like the NetBSD support.
3734 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3736 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3738 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3741 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3742 code (06) was taken as the first octet of the session ID and the last
3743 octet was ignored consequently. As a result SSLv2 client side session
3744 caching could not have worked due to the session ID mismatch between
3746 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3750 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3751 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3755 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3756 seems that in spite of existing for more than a year, many application
3757 author have done nothing to provide the necessary callbacks, which
3758 means that this particular engine will not work properly anywhere.
3759 This is a very unfortunate situation which forces us, in the name
3760 of usability, to give the hw_ncipher.c a static lock, which is part
3762 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3763 appear in 0.9.8 or later. We EXPECT application authors to have
3764 dealt properly with this when 0.9.8 is released (unless we actually
3765 make such changes in the libcrypto locking code that changes will
3766 have to be made anyway).
3769 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3770 octets have been read, EOF or an error occurs. Without this change
3771 some truncated ASN1 structures will not produce an error.
3774 *) Disable Heimdal support, since it hasn't been fully implemented.
3775 Still give the possibility to force the use of Heimdal, but with
3776 warnings and a request that patches get sent to openssl-dev.
3779 *) Add the VC-CE target, introduce the WINCE sysname, and add
3780 INSTALL.WCE and appropriate conditionals to make it build.
3781 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3783 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3784 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3785 edit numbers of the version.
3786 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3788 *) Introduce safe string copy and catenation functions
3789 (BUF_strlcpy() and BUF_strlcat()).
3790 [Ben Laurie (CHATS) and Richard Levitte]
3792 *) Avoid using fixed-size buffers for one-line DNs.
3793 [Ben Laurie (CHATS)]
3795 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3796 resizing buffers containing secrets, and use where appropriate.
3797 [Ben Laurie (CHATS)]
3799 *) Avoid using fixed size buffers for configuration file location.
3800 [Ben Laurie (CHATS)]
3802 *) Avoid filename truncation for various CA files.
3803 [Ben Laurie (CHATS)]
3805 *) Use sizeof in preference to magic numbers.
3806 [Ben Laurie (CHATS)]
3808 *) Avoid filename truncation in cert requests.
3809 [Ben Laurie (CHATS)]
3811 *) Add assertions to check for (supposedly impossible) buffer
3813 [Ben Laurie (CHATS)]
3815 *) Don't cache truncated DNS entries in the local cache (this could
3816 potentially lead to a spoofing attack).
3817 [Ben Laurie (CHATS)]
3819 *) Fix various buffers to be large enough for hex/decimal
3820 representations in a platform independent manner.
3821 [Ben Laurie (CHATS)]
3823 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3824 resizing buffers containing secrets, and use where appropriate.
3825 [Ben Laurie (CHATS)]
3827 *) Add BIO_indent() to avoid much slightly worrying code to do
3829 [Ben Laurie (CHATS)]
3831 *) Convert sprintf()/BIO_puts() to BIO_printf().
3832 [Ben Laurie (CHATS)]
3834 *) buffer_gets() could terminate with the buffer only half
3836 [Ben Laurie (CHATS)]
3838 *) Add assertions to prevent user-supplied crypto functions from
3839 overflowing internal buffers by having large block sizes, etc.
3840 [Ben Laurie (CHATS)]
3842 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3844 [Ben Laurie (CHATS)]
3846 *) Eliminate unused copy of key in RC4.
3847 [Ben Laurie (CHATS)]
3849 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3850 [Ben Laurie (CHATS)]
3852 *) Fix off-by-one error in EGD path.
3853 [Ben Laurie (CHATS)]
3855 *) If RANDFILE path is too long, ignore instead of truncating.
3856 [Ben Laurie (CHATS)]
3858 *) Eliminate unused and incorrectly sized X.509 structure
3860 [Ben Laurie (CHATS)]
3862 *) Eliminate unused and dangerous function knumber().
3863 [Ben Laurie (CHATS)]
3865 *) Eliminate unused and dangerous structure, KSSL_ERR.
3866 [Ben Laurie (CHATS)]
3868 *) Protect against overlong session ID context length in an encoded
3869 session object. Since these are local, this does not appear to be
3871 [Ben Laurie (CHATS)]
3873 *) Change from security patch (see 0.9.6e below) that did not affect
3874 the 0.9.6 release series:
3876 Remote buffer overflow in SSL3 protocol - an attacker could
3877 supply an oversized master key in Kerberos-enabled versions.
3879 [Ben Laurie (CHATS)]
3881 *) Change the SSL kerb5 codes to match RFC 2712.
3884 *) Make -nameopt work fully for req and add -reqopt switch.
3885 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3887 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3888 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3890 *) Make sure tests can be performed even if the corresponding algorithms
3891 have been removed entirely. This was also the last step to make
3892 OpenSSL compilable with DJGPP under all reasonable conditions.
3893 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3895 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3896 to allow version independent disabling of normally unselected ciphers,
3897 which may be activated as a side-effect of selecting a single cipher.
3899 (E.g., cipher list string "RSA" enables ciphersuites that are left
3900 out of "ALL" because they do not provide symmetric encryption.
3901 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3902 [Lutz Jaenicke, Bodo Moeller]
3904 *) Add appropriate support for separate platform-dependent build
3905 directories. The recommended way to make a platform-dependent
3906 build directory is the following (tested on Linux), maybe with
3909 # Place yourself outside of the OpenSSL source tree. In
3910 # this example, the environment variable OPENSSL_SOURCE
3911 # is assumed to contain the absolute OpenSSL source directory.
3912 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3913 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3914 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3915 mkdir -p `dirname $F`
3916 ln -s $OPENSSL_SOURCE/$F $F
3919 To be absolutely sure not to disturb the source tree, a "make clean"
3920 is a good thing. If it isn't successfull, don't worry about it,
3921 it probably means the source directory is very clean.
3924 *) Make sure any ENGINE control commands make local copies of string
3925 pointers passed to them whenever necessary. Otherwise it is possible
3926 the caller may have overwritten (or deallocated) the original string
3927 data when a later ENGINE operation tries to use the stored values.
3928 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3930 *) Improve diagnostics in file reading and command-line digests.
3931 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3933 *) Add AES modes CFB and OFB to the object database. Correct an
3934 error in AES-CFB decryption.
3937 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3938 allows existing EVP_CIPHER_CTX structures to be reused after
3939 calling EVP_*Final(). This behaviour is used by encryption
3940 BIOs and some applications. This has the side effect that
3941 applications must explicitly clean up cipher contexts with
3942 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3945 *) Check the values of dna and dnb in bn_mul_recursive before calling
3946 bn_mul_comba (a non zero value means the a or b arrays do not contain
3947 n2 elements) and fallback to bn_mul_normal if either is not zero.
3950 *) Fix escaping of non-ASCII characters when using the -subj option
3951 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3954 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3955 form for "surname", serialNumber has no short form.
3956 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3957 therefore remove "mail" short name for "internet 7".
3958 The OID for unique identifiers in X509 certificates is
3959 x500UniqueIdentifier, not uniqueIdentifier.
3960 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3963 *) Add an "init" command to the ENGINE config module and auto initialize
3964 ENGINEs. Without any "init" command the ENGINE will be initialized
3965 after all ctrl commands have been executed on it. If init=1 the
3966 ENGINE is initailized at that point (ctrls before that point are run
3967 on the uninitialized ENGINE and after on the initialized one). If
3968 init=0 then the ENGINE will not be iniatialized at all.
3971 *) Fix the 'app_verify_callback' interface so that the user-defined
3972 argument is actually passed to the callback: In the
3973 SSL_CTX_set_cert_verify_callback() prototype, the callback
3974 declaration has been changed from
3977 int (*cb)(X509_STORE_CTX *,void *);
3978 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3979 i=s->ctx->app_verify_callback(&ctx)
3980 has been changed into
3981 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3983 To update applications using SSL_CTX_set_cert_verify_callback(),
3984 a dummy argument can be added to their callback functions.
3985 [D. K. Smetters <smetters@parc.xerox.com>]
3987 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3988 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3990 *) Add and OPENSSL_LOAD_CONF define which will cause
3991 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3992 This allows older applications to transparently support certain
3993 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3994 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3995 load the config file and OPENSSL_add_all_algorithms_conf() which will
3996 always load it have also been added.
3999 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4000 Adjust NIDs and EVP layer.
4001 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4003 *) Config modules support in openssl utility.
4005 Most commands now load modules from the config file,
4006 though in a few (such as version) this isn't done
4007 because it couldn't be used for anything.
4009 In the case of ca and req the config file used is
4010 the same as the utility itself: that is the -config
4011 command line option can be used to specify an
4015 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4016 use "openssl_conf" if filename is NULL use default openssl config file.
4019 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4020 config section name. Add a new flag to tolerate a missing config file
4021 and move code to CONF_modules_load_file().
4024 *) Support for crypto accelerator cards from Accelerated Encryption
4025 Processing, www.aep.ie. (Use engine 'aep')
4026 The support was copied from 0.9.6c [engine] and adapted/corrected
4027 to work with the new engine framework.
4028 [AEP Inc. and Richard Levitte]
4030 *) Support for SureWare crypto accelerator cards from Baltimore
4031 Technologies. (Use engine 'sureware')
4032 The support was copied from 0.9.6c [engine] and adapted
4033 to work with the new engine framework.
4036 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4037 make the newer ENGINE framework commands for the CHIL engine work.
4038 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4040 *) Make it possible to produce shared libraries on ReliantUNIX.
4041 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4043 *) Add the configuration target debug-linux-ppro.
4044 Make 'openssl rsa' use the general key loading routines
4045 implemented in apps.c, and make those routines able to
4046 handle the key format FORMAT_NETSCAPE and the variant
4048 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4050 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4051 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4053 *) Add -keyform to rsautl, and document -engine.
4054 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4056 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4057 BIO_R_NO_SUCH_FILE error code rather than the generic
4058 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4061 *) Add new functions
4063 ERR_peek_last_error_line
4064 ERR_peek_last_error_line_data.
4065 These are similar to
4068 ERR_peek_error_line_data,
4069 but report on the latest error recorded rather than the first one
4070 still in the error queue.
4071 [Ben Laurie, Bodo Moeller]
4073 *) default_algorithms option in ENGINE config module. This allows things
4075 default_algorithms = ALL
4076 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4079 *) Prelminary ENGINE config module.
4082 *) New experimental application configuration code.
4085 *) Change the AES code to follow the same name structure as all other
4086 symmetric ciphers, and behave the same way. Move everything to
4087 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4088 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4090 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4091 [Ben Laurie and Theo de Raadt]
4093 *) Add option to output public keys in req command.
4094 [Massimiliano Pala madwolf@openca.org]
4096 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4097 (up to about 10% better than before for P-192 and P-224).
4100 *) New functions/macros
4102 SSL_CTX_set_msg_callback(ctx, cb)
4103 SSL_CTX_set_msg_callback_arg(ctx, arg)
4104 SSL_set_msg_callback(ssl, cb)
4105 SSL_set_msg_callback_arg(ssl, arg)
4107 to request calling a callback function
4109 void cb(int write_p, int version, int content_type,
4110 const void *buf, size_t len, SSL *ssl, void *arg)
4112 whenever a protocol message has been completely received
4113 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4114 protocol version according to which the SSL library interprets
4115 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4116 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4117 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4118 specification (change_cipher_spec(20), alert(21), handshake(22)).
4119 'buf' and 'len' point to the actual message, 'ssl' to the
4120 SSL object, and 'arg' is the application-defined value set by
4121 SSL[_CTX]_set_msg_callback_arg().
4123 'openssl s_client' and 'openssl s_server' have new '-msg' options
4124 to enable a callback that displays all protocol messages.
4127 *) Change the shared library support so shared libraries are built as
4128 soon as the corresponding static library is finished, and thereby get
4129 openssl and the test programs linked against the shared library.
4130 This still only happens when the keyword "shard" has been given to
4131 the configuration scripts.
4133 NOTE: shared library support is still an experimental thing, and
4134 backward binary compatibility is still not guaranteed.
4135 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4137 *) Add support for Subject Information Access extension.
4138 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4140 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4141 additional bytes when new memory had to be allocated, not just
4142 when reusing an existing buffer.
4145 *) New command line and configuration option 'utf8' for the req command.
4146 This allows field values to be specified as UTF8 strings.
4149 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4150 runs for the former and machine-readable output for the latter.
4153 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4154 of the e-mail address in the DN (i.e., it will go into a certificate
4155 extension only). The new configuration file option 'email_in_dn = no'
4156 has the same effect.
4157 [Massimiliano Pala madwolf@openca.org]
4159 *) Change all functions with names starting with des_ to be starting
4160 with DES_ instead. Add wrappers that are compatible with libdes,
4161 but are named _ossl_old_des_*. Finally, add macros that map the
4162 des_* symbols to the corresponding _ossl_old_des_* if libdes
4163 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4164 desired, the des_* symbols will be mapped to DES_*, with one
4167 Since we provide two compatibility mappings, the user needs to
4168 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4169 compatibility is desired. The default (i.e., when that macro
4170 isn't defined) is OpenSSL 0.9.6c compatibility.
4172 There are also macros that enable and disable the support of old
4173 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4174 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4175 are defined, the default will apply: to support the old des routines.
4177 In either case, one must include openssl/des.h to get the correct
4178 definitions. Do not try to just include openssl/des_old.h, that
4181 NOTE: This is a major break of an old API into a new one. Software
4182 authors are encouraged to switch to the DES_ style functions. Some
4183 time in the future, des_old.h and the libdes compatibility functions
4184 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4185 default), and then completely removed.
4188 *) Test for certificates which contain unsupported critical extensions.
4189 If such a certificate is found during a verify operation it is
4190 rejected by default: this behaviour can be overridden by either
4191 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4192 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4193 X509_supported_extension() has also been added which returns 1 if a
4194 particular extension is supported.
4197 *) Modify the behaviour of EVP cipher functions in similar way to digests
4198 to retain compatibility with existing code.
4201 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4202 compatibility with existing code. In particular the 'ctx' parameter does
4203 not have to be to be initialized before the call to EVP_DigestInit() and
4204 it is tidied up after a call to EVP_DigestFinal(). New function
4205 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4206 EVP_MD_CTX_copy() changed to not require the destination to be
4207 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4208 requires the destination to be valid.
4210 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4211 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4214 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4215 so that complete 'Handshake' protocol structures are kept in memory
4216 instead of overwriting 'msg_type' and 'length' with 'body' data.
4219 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4220 [Massimo Santin via Richard Levitte]
4222 *) Major restructuring to the underlying ENGINE code. This includes
4223 reduction of linker bloat, separation of pure "ENGINE" manipulation
4224 (initialisation, etc) from functionality dealing with implementations
4225 of specific crypto iterfaces. This change also introduces integrated
4226 support for symmetric ciphers and digest implementations - so ENGINEs
4227 can now accelerate these by providing EVP_CIPHER and EVP_MD
4228 implementations of their own. This is detailed in crypto/engine/README
4229 as it couldn't be adequately described here. However, there are a few
4230 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4231 were changed in the original introduction of ENGINE code have now
4232 reverted back - the hooking from this code to ENGINE is now a good
4233 deal more passive and at run-time, operations deal directly with
4234 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4235 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4236 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4237 they were not being used by the framework as there is no concept of a
4238 BIGNUM_METHOD and they could not be generalised to the new
4239 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4240 ENGINE_cpy() has been removed as it cannot be consistently defined in
4244 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4247 *) Change mkdef.pl to sort symbols that get the same entry number,
4248 and make sure the automatically generated functions ERR_load_*
4249 become part of libeay.num as well.
4252 *) New function SSL_renegotiate_pending(). This returns true once
4253 renegotiation has been requested (either SSL_renegotiate() call
4254 or HelloRequest/ClientHello receveived from the peer) and becomes
4255 false once a handshake has been completed.
4256 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4257 sends a HelloRequest, but does not ensure that a handshake takes
4258 place. SSL_renegotiate_pending() is useful for checking if the
4259 client has followed the request.)
4262 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4263 By default, clients may request session resumption even during
4264 renegotiation (if session ID contexts permit); with this option,
4265 session resumption is possible only in the first handshake.
4267 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4268 more bits available for options that should not be part of
4269 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4272 *) Add some demos for certificate and certificate request creation.
4275 *) Make maximum certificate chain size accepted from the peer application
4276 settable (SSL*_get/set_max_cert_list()), as proposed by
4277 "Douglas E. Engert" <deengert@anl.gov>.
4280 *) Add support for shared libraries for Unixware-7
4281 (Boyd Lynn Gerber <gerberb@zenez.com>).
4284 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4285 be done prior to destruction. Use this to unload error strings from
4286 ENGINEs that load their own error strings. NB: This adds two new API
4287 functions to "get" and "set" this destroy handler in an ENGINE.
4290 *) Alter all existing ENGINE implementations (except "openssl" and
4291 "openbsd") to dynamically instantiate their own error strings. This
4292 makes them more flexible to be built both as statically-linked ENGINEs
4293 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4294 Also, add stub code to each that makes building them as self-contained
4295 shared-libraries easier (see README.ENGINE).
4298 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4299 implementations into applications that are completely implemented in
4300 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4301 commands that can be used to configure what shared-library to load and
4302 to control aspects of the way it is handled. Also, made an update to
4303 the README.ENGINE file that brings its information up-to-date and
4304 provides some information and instructions on the "dynamic" ENGINE
4305 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4308 *) Make it possible to unload ranges of ERR strings with a new
4309 "ERR_unload_strings" function.
4312 *) Add a copy() function to EVP_MD.
4315 *) Make EVP_MD routines take a context pointer instead of just the
4316 md_data void pointer.
4319 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4320 that the digest can only process a single chunk of data
4321 (typically because it is provided by a piece of
4322 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4323 is only going to provide a single chunk of data, and hence the
4324 framework needn't accumulate the data for oneshot drivers.
4327 *) As with "ERR", make it possible to replace the underlying "ex_data"
4328 functions. This change also alters the storage and management of global
4329 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4330 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4331 index counters. The API functions that use this state have been changed
4332 to take a "class_index" rather than pointers to the class's local STACK
4333 and counter, and there is now an API function to dynamically create new
4334 classes. This centralisation allows us to (a) plug a lot of the
4335 thread-safety problems that existed, and (b) makes it possible to clean
4336 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4337 such data would previously have always leaked in application code and
4338 workarounds were in place to make the memory debugging turn a blind eye
4339 to it. Application code that doesn't use this new function will still
4340 leak as before, but their memory debugging output will announce it now
4341 rather than letting it slide.
4343 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4344 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4345 has a return value to indicate success or failure.
4348 *) Make it possible to replace the underlying "ERR" functions such that the
4349 global state (2 LHASH tables and 2 locks) is only used by the "default"
4350 implementation. This change also adds two functions to "get" and "set"
4351 the implementation prior to it being automatically set the first time
4352 any other ERR function takes place. Ie. an application can call "get",
4353 pass the return value to a module it has just loaded, and that module
4354 can call its own "set" function using that value. This means the
4355 module's "ERR" operations will use (and modify) the error state in the
4356 application and not in its own statically linked copy of OpenSSL code.
4359 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4360 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4361 the operation, and provides a more encapsulated way for external code
4362 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4363 to use these functions rather than manually incrementing the counts.
4365 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4368 *) Add EVP test program.
4371 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4374 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4375 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4376 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4377 These allow a CRL to be built without having to access X509_CRL fields
4378 directly. Modify 'ca' application to use new functions.
4381 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4382 bug workarounds. Rollback attack detection is a security feature.
4383 The problem will only arise on OpenSSL servers when TLSv1 is not
4384 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4385 Software authors not wanting to support TLSv1 will have special reasons
4386 for their choice and can explicitly enable this option.
4387 [Bodo Moeller, Lutz Jaenicke]
4389 *) Rationalise EVP so it can be extended: don't include a union of
4390 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4391 (similar to those existing for EVP_CIPHER_CTX).
4396 EVP_MD_CTX_init(&md); /* new function call */
4397 EVP_DigestInit(&md, EVP_sha1());
4398 EVP_DigestUpdate(&md, in, len);
4399 EVP_DigestFinal(&md, out, NULL);
4400 EVP_MD_CTX_cleanup(&md); /* new function call */
4404 *) Make DES key schedule conform to the usual scheme, as well as
4405 correcting its structure. This means that calls to DES functions
4406 now have to pass a pointer to a des_key_schedule instead of a
4407 plain des_key_schedule (which was actually always a pointer
4410 des_key_schedule ks;
4412 des_set_key_checked(..., &ks);
4413 des_ncbc_encrypt(..., &ks, ...);
4415 (Note that a later change renames 'des_...' into 'DES_...'.)
4418 *) Initial reduction of linker bloat: the use of some functions, such as
4419 PEM causes large amounts of unused functions to be linked in due to
4420 poor organisation. For example pem_all.c contains every PEM function
4421 which has a knock on effect of linking in large amounts of (unused)
4422 ASN1 code. Grouping together similar functions and splitting unrelated
4423 functions prevents this.
4426 *) Cleanup of EVP macros.
4429 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4430 correct _ecb suffix.
4433 *) Add initial OCSP responder support to ocsp application. The
4434 revocation information is handled using the text based index
4435 use by the ca application. The responder can either handle
4436 requests generated internally, supplied in files (for example
4437 via a CGI script) or using an internal minimal server.
4440 *) Add configuration choices to get zlib compression for TLS.
4443 *) Changes to Kerberos SSL for RFC 2712 compliance:
4444 1. Implemented real KerberosWrapper, instead of just using
4445 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4446 2. Implemented optional authenticator field of KerberosWrapper.
4448 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4449 and authenticator structs; see crypto/krb5/.
4451 Generalized Kerberos calls to support multiple Kerberos libraries.
4452 [Vern Staats <staatsvr@asc.hpc.mil>,
4453 Jeffrey Altman <jaltman@columbia.edu>
4454 via Richard Levitte]
4456 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4457 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4458 values for each of the key sizes rather than having just
4459 parameters (and 'speed' generating keys each time).
4462 *) Speed up EVP routines.
4465 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4466 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4467 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4468 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4470 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4471 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4472 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4475 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4477 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4480 *) Added the OS2-EMX target.
4481 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4483 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4484 to support NCONF routines in extension code. New function CONF_set_nconf()
4485 to allow functions which take an NCONF to also handle the old LHASH
4486 structure: this means that the old CONF compatible routines can be
4487 retained (in particular wrt extensions) without having to duplicate the
4488 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4491 *) Enhance the general user interface with mechanisms for inner control
4492 and with possibilities to have yes/no kind of prompts.
4495 *) Change all calls to low level digest routines in the library and
4496 applications to use EVP. Add missing calls to HMAC_cleanup() and
4497 don't assume HMAC_CTX can be copied using memcpy().
4498 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4500 *) Add the possibility to control engines through control names but with
4501 arbitrary arguments instead of just a string.
4502 Change the key loaders to take a UI_METHOD instead of a callback
4503 function pointer. NOTE: this breaks binary compatibility with earlier
4504 versions of OpenSSL [engine].
4505 Adapt the nCipher code for these new conditions and add a card insertion
4509 *) Enhance the general user interface with mechanisms to better support
4510 dialog box interfaces, application-defined prompts, the possibility
4511 to use defaults (for example default passwords from somewhere else)
4512 and interrupts/cancellations.
4515 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4516 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4519 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4520 tidy up some unnecessarily weird code in 'sk_new()').
4521 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4523 *) Change the key loading routines for ENGINEs to use the same kind
4524 callback (pem_password_cb) as all other routines that need this
4528 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4529 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4530 than this minimum value is recommended.
4533 *) New random seeder for OpenVMS, using the system process statistics
4534 that are easily reachable.
4537 *) Windows apparently can't transparently handle global
4538 variables defined in DLLs. Initialisations such as:
4540 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4542 wont compile. This is used by the any applications that need to
4543 declare their own ASN1 modules. This was fixed by adding the option
4544 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4545 needed for static libraries under Win32.
4548 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4549 setting of purpose and trust fields. New X509_STORE trust and
4550 purpose functions and tidy up setting in other SSL functions.
4553 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4554 structure. These are inherited by X509_STORE_CTX when it is
4555 initialised. This allows various defaults to be set in the
4556 X509_STORE structure (such as flags for CRL checking and custom
4557 purpose or trust settings) for functions which only use X509_STORE_CTX
4558 internally such as S/MIME.
4560 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4561 trust settings if they are not set in X509_STORE. This allows X509_STORE
4562 purposes and trust (in S/MIME for example) to override any set by default.
4564 Add command line options for CRL checking to smime, s_client and s_server
4568 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4569 are set then the CRL is looked up in the X509_STORE structure and
4570 its validity and signature checked, then if the certificate is found
4571 in the CRL the verify fails with a revoked error.
4573 Various new CRL related callbacks added to X509_STORE_CTX structure.
4575 Command line options added to 'verify' application to support this.
4577 This needs some additional work, such as being able to handle multiple
4578 CRLs with different times, extension based lookup (rather than just
4579 by subject name) and ultimately more complete V2 CRL extension
4583 *) Add a general user interface API (crypto/ui/). This is designed
4584 to replace things like des_read_password and friends (backward
4585 compatibility functions using this new API are provided).
4586 The purpose is to remove prompting functions from the DES code
4587 section as well as provide for prompting through dialog boxes in
4588 a window system and the like.
4591 *) Add "ex_data" support to ENGINE so implementations can add state at a
4592 per-structure level rather than having to store it globally.
4595 *) Make it possible for ENGINE structures to be copied when retrieved by
4596 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4597 This causes the "original" ENGINE structure to act like a template,
4598 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4599 operational state can be localised to each ENGINE structure, despite the
4600 fact they all share the same "methods". New ENGINE structures returned in
4601 this case have no functional references and the return value is the single
4602 structural reference. This matches the single structural reference returned
4603 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4607 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4608 needs to match any other type at all we need to manually clear the
4612 *) Changes to the "openssl engine" utility to include;
4613 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4614 about an ENGINE's available control commands.
4615 - executing control commands from command line arguments using the
4616 '-pre' and '-post' switches. '-post' is only used if '-t' is
4617 specified and the ENGINE is successfully initialised. The syntax for
4618 the individual commands are colon-separated, for example;
4619 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4622 *) New dynamic control command support for ENGINEs. ENGINEs can now
4623 declare their own commands (numbers), names (strings), descriptions,
4624 and input types for run-time discovery by calling applications. A
4625 subset of these commands are implicitly classed as "executable"
4626 depending on their input type, and only these can be invoked through
4627 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4628 can be based on user input, config files, etc). The distinction is
4629 that "executable" commands cannot return anything other than a boolean
4630 result and can only support numeric or string input, whereas some
4631 discoverable commands may only be for direct use through
4632 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4633 pointers, or other custom uses. The "executable" commands are to
4634 support parameterisations of ENGINE behaviour that can be
4635 unambiguously defined by ENGINEs and used consistently across any
4636 OpenSSL-based application. Commands have been added to all the
4637 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4638 control over shared-library paths without source code alterations.
4641 *) Changed all ENGINE implementations to dynamically allocate their
4642 ENGINEs rather than declaring them statically. Apart from this being
4643 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4644 this also allows the implementations to compile without using the
4645 internal engine_int.h header.
4648 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4649 'const' value. Any code that should be able to modify a RAND_METHOD
4650 should already have non-const pointers to it (ie. they should only
4651 modify their own ones).
4654 *) Made a variety of little tweaks to the ENGINE code.
4655 - "atalla" and "ubsec" string definitions were moved from header files
4656 to C code. "nuron" string definitions were placed in variables
4657 rather than hard-coded - allowing parameterisation of these values
4658 later on via ctrl() commands.
4659 - Removed unused "#if 0"'d code.
4660 - Fixed engine list iteration code so it uses ENGINE_free() to release
4661 structural references.
4662 - Constified the RAND_METHOD element of ENGINE structures.
4663 - Constified various get/set functions as appropriate and added
4664 missing functions (including a catch-all ENGINE_cpy that duplicates
4665 all ENGINE values onto a new ENGINE except reference counts/state).
4666 - Removed NULL parameter checks in get/set functions. Setting a method
4667 or function to NULL is a way of cancelling out a previously set
4668 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4669 and doesn't justify the extra error symbols and code.
4670 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4671 flags from engine_int.h to engine.h.
4672 - Changed prototypes for ENGINE handler functions (init(), finish(),
4673 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4676 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4677 to the algorithm using long division. The binary algorithm can be
4678 used only if the modulus is odd. On 32-bit systems, it is faster
4679 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4680 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4681 up to 450 bits. In 64-bit environments, the binary algorithm
4682 appears to be advantageous for much longer moduli; here we use it
4683 for moduli up to 2048 bits.
4686 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4687 could not support the combine flag in choice fields.
4690 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4691 extensions from a certificate request to the certificate.
4694 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4695 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4696 file: this allows the display of the certificate about to be
4697 signed to be customised, to allow certain fields to be included
4698 or excluded and extension details. The old system didn't display
4699 multicharacter strings properly, omitted fields not in the policy
4700 and couldn't display additional details such as extensions.
4703 *) Function EC_POINTs_mul for multiple scalar multiplication
4704 of an arbitrary number of elliptic curve points
4705 \sum scalars[i]*points[i],
4706 optionally including the generator defined for the EC_GROUP:
4707 scalar*generator + \sum scalars[i]*points[i].
4709 EC_POINT_mul is a simple wrapper function for the typical case
4710 that the point list has just one item (besides the optional
4714 *) First EC_METHODs for curves over GF(p):
4716 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4717 operations and provides various method functions that can also
4718 operate with faster implementations of modular arithmetic.
4720 EC_GFp_mont_method() reuses most functions that are part of
4721 EC_GFp_simple_method, but uses Montgomery arithmetic.
4723 [Bodo Moeller; point addition and point doubling
4724 implementation directly derived from source code provided by
4725 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4727 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4728 crypto/ec/ec_lib.c):
4730 Curves are EC_GROUP objects (with an optional group generator)
4731 based on EC_METHODs that are built into the library.
4733 Points are EC_POINT objects based on EC_GROUP objects.
4735 Most of the framework would be able to handle curves over arbitrary
4736 finite fields, but as there are no obvious types for fields other
4737 than GF(p), some functions are limited to that for now.
4740 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4741 that the file contains a complete HTTP response.
4744 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4745 change the def and num file printf format specifier from "%-40sXXX"
4746 to "%-39s XXX". The latter will always guarantee a space after the
4747 field while the former will cause them to run together if the field
4748 is 40 of more characters long.
4751 *) Constify the cipher and digest 'method' functions and structures
4752 and modify related functions to take constant EVP_MD and EVP_CIPHER
4756 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4757 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4760 *) Modify EVP_Digest*() routines so they now return values. Although the
4761 internal software routines can never fail additional hardware versions
4765 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4767 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4768 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4771 ERR_R_NESTED_ASN1_ERROR
4773 ERR_R_MISSING_ASN1_EOS
4774 were 4 .. 9, conflicting with
4775 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4777 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4778 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4780 Add new error code 'ERR_R_INTERNAL_ERROR'.
4783 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4787 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4788 sets the subject name for a new request or supersedes the
4789 subject name in a given request. Formats that can be parsed are
4790 'CN=Some Name, OU=myOU, C=IT'
4792 'CN=Some Name/OU=myOU/C=IT'.
4794 Add options '-batch' and '-verbose' to 'openssl req'.
4795 [Massimiliano Pala <madwolf@hackmasters.net>]
4797 *) Introduce the possibility to access global variables through
4798 functions on platform were that's the best way to handle exporting
4799 global variables in shared libraries. To enable this functionality,
4800 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4801 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4802 is normally done by Configure or something similar).
4804 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4805 in the source file (foo.c) like this:
4807 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4808 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4810 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4811 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4813 OPENSSL_DECLARE_GLOBAL(int,foo);
4814 #define foo OPENSSL_GLOBAL_REF(foo)
4815 OPENSSL_DECLARE_GLOBAL(double,bar);
4816 #define bar OPENSSL_GLOBAL_REF(bar)
4818 The #defines are very important, and therefore so is including the
4819 header file everywhere where the defined globals are used.
4821 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4822 of ASN.1 items, but that structure is a bit different.
4824 The largest change is in util/mkdef.pl which has been enhanced with
4825 better and easier to understand logic to choose which symbols should
4826 go into the Windows .def files as well as a number of fixes and code
4827 cleanup (among others, algorithm keywords are now sorted
4828 lexicographically to avoid constant rewrites).
4831 *) In BN_div() keep a copy of the sign of 'num' before writing the
4832 result to 'rm' because if rm==num the value will be overwritten
4833 and produce the wrong result if 'num' is negative: this caused
4834 problems with BN_mod() and BN_nnmod().
4837 *) Function OCSP_request_verify(). This checks the signature on an
4838 OCSP request and verifies the signer certificate. The signer
4839 certificate is just checked for a generic purpose and OCSP request
4843 *) Add OCSP_check_validity() function to check the validity of OCSP
4844 responses. OCSP responses are prepared in real time and may only
4845 be a few seconds old. Simply checking that the current time lies
4846 between thisUpdate and nextUpdate max reject otherwise valid responses
4847 caused by either OCSP responder or client clock inaccuracy. Instead
4848 we allow thisUpdate and nextUpdate to fall within a certain period of
4849 the current time. The age of the response can also optionally be
4850 checked. Two new options -validity_period and -status_age added to
4854 *) If signature or public key algorithm is unrecognized print out its
4855 OID rather that just UNKNOWN.
4858 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4859 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4860 ID to be generated from the issuer certificate alone which can then be
4861 passed to OCSP_id_issuer_cmp().
4864 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4865 ASN1 modules to export functions returning ASN1_ITEM pointers
4866 instead of the ASN1_ITEM structures themselves. This adds several
4867 new macros which allow the underlying ASN1 function/structure to
4868 be accessed transparently. As a result code should not use ASN1_ITEM
4869 references directly (such as &X509_it) but instead use the relevant
4870 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4871 use of the new ASN1 code on platforms where exporting structures
4872 is problematical (for example in shared libraries) but exporting
4873 functions returning pointers to structures is not.
4876 *) Add support for overriding the generation of SSL/TLS session IDs.
4877 These callbacks can be registered either in an SSL_CTX or per SSL.
4878 The purpose of this is to allow applications to control, if they wish,
4879 the arbitrary values chosen for use as session IDs, particularly as it
4880 can be useful for session caching in multiple-server environments. A
4881 command-line switch for testing this (and any client code that wishes
4882 to use such a feature) has been added to "s_server".
4883 [Geoff Thorpe, Lutz Jaenicke]
4885 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4886 of the form '#if defined(...) || defined(...) || ...' and
4887 '#if !defined(...) && !defined(...) && ...'. This also avoids
4888 the growing number of special cases it was previously handling.
4891 *) Make all configuration macros available for application by making
4892 sure they are available in opensslconf.h, by giving them names starting
4893 with "OPENSSL_" to avoid conflicts with other packages and by making
4894 sure e_os2.h will cover all platform-specific cases together with
4896 Additionally, it is now possible to define configuration/platform-
4897 specific names (called "system identities"). In the C code, these
4898 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4899 macro with the name beginning with "OPENSSL_SYS_", which is determined
4900 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4904 *) New option -set_serial to 'req' and 'x509' this allows the serial
4905 number to use to be specified on the command line. Previously self
4906 signed certificates were hard coded with serial number 0 and the
4907 CA options of 'x509' had to use a serial number in a file which was
4911 *) New options to 'ca' utility to support V2 CRL entry extensions.
4912 Currently CRL reason, invalidity date and hold instruction are
4913 supported. Add new CRL extensions to V3 code and some new objects.
4916 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4917 disable standard block padding (aka PKCS#5 padding) in the EVP
4918 API, which was previously mandatory. This means that the data is
4919 not padded in any way and so the total length much be a multiple
4920 of the block size, otherwise an error occurs.
4923 *) Initial (incomplete) OCSP SSL support.
4926 *) New function OCSP_parse_url(). This splits up a URL into its host,
4927 port and path components: primarily to parse OCSP URLs. New -url
4928 option to ocsp utility.
4931 *) New nonce behavior. The return value of OCSP_check_nonce() now
4932 reflects the various checks performed. Applications can decide
4933 whether to tolerate certain situations such as an absent nonce
4934 in a response when one was present in a request: the ocsp application
4935 just prints out a warning. New function OCSP_add1_basic_nonce()
4936 this is to allow responders to include a nonce in a response even if
4937 the request is nonce-less.
4940 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4941 skipped when using openssl x509 multiple times on a single input file,
4942 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4945 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4946 set string type: to handle setting ASN1_TIME structures. Fix ca
4947 utility to correctly initialize revocation date of CRLs.
4950 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4951 the clients preferred ciphersuites and rather use its own preferences.
4952 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4953 Internet Explorer by ensuring unchanged hash method during stepup.
4954 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4957 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4958 to aes and add a new 'exist' option to print out symbols that don't
4962 *) Additional options to ocsp utility to allow flags to be set and
4963 additional certificates supplied.
4966 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4967 OCSP client a number of certificate to only verify the response
4971 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4972 handle the new API. Currently only ECB, CBC modes supported. Add new
4975 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4976 Encryption Standard (AES) Ciphersuites for Transport Layer
4977 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4978 not enabled by default and were not part of the "ALL" ciphersuite
4979 alias because they were not yet official; they could be
4980 explicitly requested by specifying the "AESdraft" ciphersuite
4981 group alias. In the final release of OpenSSL 0.9.7, the group
4982 alias is called "AES" and is part of "ALL".)
4983 [Ben Laurie, Steve Henson, Bodo Moeller]
4985 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4986 request to response.
4989 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4990 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4991 extract information from a certificate request. OCSP_response_create()
4992 creates a response and optionally adds a basic response structure.
4993 OCSP_basic_add1_status() adds a complete single response to a basic
4994 response and returns the OCSP_SINGLERESP structure just added (to allow
4995 extensions to be included for example). OCSP_basic_add1_cert() adds a
4996 certificate to a basic response and OCSP_basic_sign() signs a basic
4997 response with various flags. New helper functions ASN1_TIME_check()
4998 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4999 (converts ASN1_TIME to GeneralizedTime).
5002 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5003 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5004 structure from a certificate. X509_pubkey_digest() digests the public_key
5005 contents: this is used in various key identifiers.
5008 *) Make sk_sort() tolerate a NULL argument.
5009 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5011 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5012 passed by the function are trusted implicitly. If any of them signed the
5013 response then it is assumed to be valid and is not verified.
5016 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5017 to data. This was previously part of the PKCS7 ASN1 code. This
5018 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5019 [Steve Henson, reported by Kenneth R. Robinette
5020 <support@securenetterm.com>]
5022 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5023 routines: without these tracing memory leaks is very painful.
5024 Fix leaks in PKCS12 and PKCS7 routines.
5027 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5028 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5029 effectively meant GeneralizedTime would never be used. Now it
5030 is initialised to -1 but X509_time_adj() now has to check the value
5031 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5032 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5033 [Steve Henson, reported by Kenneth R. Robinette
5034 <support@securenetterm.com>]
5036 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5037 result in a zero length in the ASN1_INTEGER structure which was
5038 not consistent with the structure when d2i_ASN1_INTEGER() was used
5039 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5040 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5041 where it did not print out a minus for negative ASN1_INTEGER.
5044 *) Add summary printout to ocsp utility. The various functions which
5045 convert status values to strings have been renamed to:
5046 OCSP_response_status_str(), OCSP_cert_status_str() and
5047 OCSP_crl_reason_str() and are no longer static. New options
5048 to verify nonce values and to disable verification. OCSP response
5049 printout format cleaned up.
5052 *) Add additional OCSP certificate checks. These are those specified
5053 in RFC2560. This consists of two separate checks: the CA of the
5054 certificate being checked must either be the OCSP signer certificate
5055 or the issuer of the OCSP signer certificate. In the latter case the
5056 OCSP signer certificate must contain the OCSP signing extended key
5057 usage. This check is performed by attempting to match the OCSP
5058 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5059 in the OCSP_CERTID structures of the response.
5062 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5063 and related routines. This uses the standard OpenSSL certificate
5064 verify routines to perform initial checks (just CA validity) and
5065 to obtain the certificate chain. Then additional checks will be
5066 performed on the chain. Currently the root CA is checked to see
5067 if it is explicitly trusted for OCSP signing. This is used to set
5068 a root CA as a global signing root: that is any certificate that
5069 chains to that CA is an acceptable OCSP signing certificate.
5072 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5073 extensions from a separate configuration file.
5074 As when reading extensions from the main configuration file,
5075 the '-extensions ...' option may be used for specifying the
5077 [Massimiliano Pala <madwolf@comune.modena.it>]
5079 *) New OCSP utility. Allows OCSP requests to be generated or
5080 read. The request can be sent to a responder and the output
5081 parsed, outputed or printed in text form. Not complete yet:
5082 still needs to check the OCSP response validity.
5085 *) New subcommands for 'openssl ca':
5086 'openssl ca -status <serial>' prints the status of the cert with
5087 the given serial number (according to the index file).
5088 'openssl ca -updatedb' updates the expiry status of certificates
5090 [Massimiliano Pala <madwolf@comune.modena.it>]
5092 *) New '-newreq-nodes' command option to CA.pl. This is like
5093 '-newreq', but calls 'openssl req' with the '-nodes' option
5094 so that the resulting key is not encrypted.
5095 [Damien Miller <djm@mindrot.org>]
5097 *) New configuration for the GNU Hurd.
5098 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5100 *) Initial code to implement OCSP basic response verify. This
5101 is currently incomplete. Currently just finds the signer's
5102 certificate and verifies the signature on the response.
5105 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5106 value of OPENSSLDIR. This is available via the new '-d' option
5107 to 'openssl version', and is also included in 'openssl version -a'.
5110 *) Allowing defining memory allocation callbacks that will be given
5111 file name and line number information in additional arguments
5112 (a const char* and an int). The basic functionality remains, as
5113 well as the original possibility to just replace malloc(),
5114 realloc() and free() by functions that do not know about these
5115 additional arguments. To register and find out the current
5116 settings for extended allocation functions, the following
5117 functions are provided:
5119 CRYPTO_set_mem_ex_functions
5120 CRYPTO_set_locked_mem_ex_functions
5121 CRYPTO_get_mem_ex_functions
5122 CRYPTO_get_locked_mem_ex_functions
5124 These work the same way as CRYPTO_set_mem_functions and friends.
5125 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5126 extended allocation function is enabled.
5127 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5128 a conventional allocation function is enabled.
5129 [Richard Levitte, Bodo Moeller]
5131 *) Finish off removing the remaining LHASH function pointer casts.
5132 There should no longer be any prototype-casting required when using
5133 the LHASH abstraction, and any casts that remain are "bugs". See
5134 the callback types and macros at the head of lhash.h for details
5135 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5138 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5139 If /dev/[u]random devices are not available or do not return enough
5140 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5142 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5143 /etc/entropy will be queried once each in this sequence, quering stops
5144 when enough entropy was collected without querying more sockets.
5147 *) Change the Unix RAND_poll() variant to be able to poll several
5148 random devices, as specified by DEVRANDOM, until a sufficient amount
5149 of data has been collected. We spend at most 10 ms on each file
5150 (select timeout) and read in non-blocking mode. DEVRANDOM now
5151 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5152 (previously it was just the string "/dev/urandom"), so on typical
5153 platforms the 10 ms delay will never occur.
5154 Also separate out the Unix variant to its own file, rand_unix.c.
5155 For VMS, there's a currently-empty rand_vms.c.
5158 *) Move OCSP client related routines to ocsp_cl.c. These
5159 provide utility functions which an application needing
5160 to issue a request to an OCSP responder and analyse the
5161 response will typically need: as opposed to those which an
5162 OCSP responder itself would need which will be added later.
5164 OCSP_request_sign() signs an OCSP request with an API similar
5165 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5166 response. OCSP_response_get1_basic() extracts basic response
5167 from response. OCSP_resp_find_status(): finds and extracts status
5168 information from an OCSP_CERTID structure (which will be created
5169 when the request structure is built). These are built from lower
5170 level functions which work on OCSP_SINGLERESP structures but
5171 wont normally be used unless the application wishes to examine
5172 extensions in the OCSP response for example.
5174 Replace nonce routines with a pair of functions.
5175 OCSP_request_add1_nonce() adds a nonce value and optionally
5176 generates a random value. OCSP_check_nonce() checks the
5177 validity of the nonce in an OCSP response.
5180 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5181 This doesn't copy the supplied OCSP_CERTID and avoids the
5182 need to free up the newly created id. Change return type
5183 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5184 This can then be used to add extensions to the request.
5185 Deleted OCSP_request_new(), since most of its functionality
5186 is now in OCSP_REQUEST_new() (and the case insensitive name
5187 clash) apart from the ability to set the request name which
5188 will be added elsewhere.
5191 *) Update OCSP API. Remove obsolete extensions argument from
5192 various functions. Extensions are now handled using the new
5193 OCSP extension code. New simple OCSP HTTP function which
5194 can be used to send requests and parse the response.
5197 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5198 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5199 uses the special reorder version of SET OF to sort the attributes
5200 and reorder them to match the encoded order. This resolves a long
5201 standing problem: a verify on a PKCS7 structure just after signing
5202 it used to fail because the attribute order did not match the
5203 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5204 it uses the received order. This is necessary to tolerate some broken
5205 software that does not order SET OF. This is handled by encoding
5206 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5207 to produce the required SET OF.
5210 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5211 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5212 files to get correct declarations of the ASN.1 item variables.
5215 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5216 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5217 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5218 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5219 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5220 ASN1_ITEM and no wrapper functions.
5223 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5224 replace the old function pointer based I/O routines. Change most of
5225 the *_d2i_bio() and *_d2i_fp() functions to use these.
5228 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5229 lines, recognice more "algorithms" that can be deselected, and make
5230 it complain about algorithm deselection that isn't recognised.
5233 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5234 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5235 to use new functions. Add NO_ASN1_OLD which can be set to remove
5236 some old style ASN1 functions: this can be used to determine if old
5237 code will still work when these eventually go away.
5240 *) New extension functions for OCSP structures, these follow the
5241 same conventions as certificates and CRLs.
5244 *) New function X509V3_add1_i2d(). This automatically encodes and
5245 adds an extension. Its behaviour can be customised with various
5246 flags to append, replace or delete. Various wrappers added for
5247 certifcates and CRLs.
5250 *) Fix to avoid calling the underlying ASN1 print routine when
5251 an extension cannot be parsed. Correct a typo in the
5252 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5255 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5256 entries for variables.
5259 *) Add functionality to apps/openssl.c for detecting locking
5260 problems: As the program is single-threaded, all we have
5261 to do is register a locking callback using an array for
5262 storing which locks are currently held by the program.
5265 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5266 SSL_get_ex_data_X509_STORE_idx(), which is used in
5267 ssl_verify_cert_chain() and thus can be called at any time
5268 during TLS/SSL handshakes so that thread-safety is essential.
5269 Unfortunately, the ex_data design is not at all suited
5270 for multi-threaded use, so it probably should be abolished.
5273 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5274 [Broadcom, tweaked and integrated by Geoff Thorpe]
5276 *) Move common extension printing code to new function
5277 X509V3_print_extensions(). Reorganise OCSP print routines and
5278 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5281 *) New function X509_signature_print() to remove duplication in some
5285 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5286 set (this was treated exactly the same as SET OF previously). This
5287 is used to reorder the STACK representing the structure to match the
5288 encoding. This will be used to get round a problem where a PKCS7
5289 structure which was signed could not be verified because the STACK
5290 order did not reflect the encoded order.
5293 *) Reimplement the OCSP ASN1 module using the new code.
5296 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5297 for its ASN1 operations. The old style function pointers still exist
5298 for now but they will eventually go away.
5301 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5302 completely replaces the old ASN1 functionality with a table driven
5303 encoder and decoder which interprets an ASN1_ITEM structure describing
5304 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5305 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5306 has also been converted to the new form.
5309 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5310 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5311 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5312 for negative moduli.
5315 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5316 of not touching the result's sign bit.
5319 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5323 *) Changed the LHASH code to use prototypes for callbacks, and created
5324 macros to declare and implement thin (optionally static) functions
5325 that provide type-safety and avoid function pointer casting for the
5326 type-specific callbacks.
5329 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5331 [Veers Staats <staatsvr@asc.hpc.mil>,
5332 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5334 *) Reformat the FAQ so the different questions and answers can be divided
5335 in sections depending on the subject.
5338 *) Have the zlib compression code load ZLIB.DLL dynamically under
5342 *) New function BN_mod_sqrt for computing square roots modulo a prime
5343 (using the probabilistic Tonelli-Shanks algorithm unless
5344 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5345 be handled deterministically).
5346 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5348 *) Make BN_mod_inverse faster by explicitly handling small quotients
5349 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5350 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5353 *) New function BN_kronecker.
5356 *) Fix BN_gcd so that it works on negative inputs; the result is
5357 positive unless both parameters are zero.
5358 Previously something reasonably close to an infinite loop was
5359 possible because numbers could be growing instead of shrinking
5360 in the implementation of Euclid's algorithm.
5363 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5364 sign of the number in question.
5366 Fix BN_is_word(a,w) to work correctly for w == 0.
5368 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5369 because its test if the absolute value of 'a' equals 'w'.
5370 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5371 it exists mostly for use in the implementations of BN_is_zero(),
5372 BN_is_one(), and BN_is_word().
5375 *) New function BN_swap.
5378 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5379 the exponentiation functions are more likely to produce reasonable
5380 results on negative inputs.
5383 *) Change BN_mod_mul so that the result is always non-negative.
5384 Previously, it could be negative if one of the factors was negative;
5385 I don't think anyone really wanted that behaviour.
5388 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5389 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5390 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5391 and add new functions:
5400 BN_mod_lshift1_quick
5404 These functions always generate non-negative results.
5406 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5407 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5409 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5410 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5411 be reduced modulo m.
5412 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5415 The following entry accidentily appeared in the CHANGES file
5416 distributed with OpenSSL 0.9.7. The modifications described in
5417 it do *not* apply to OpenSSL 0.9.7.
5419 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5420 was actually never needed) and in BN_mul(). The removal in BN_mul()
5421 required a small change in bn_mul_part_recursive() and the addition
5422 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5423 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5424 bn_sub_words() and bn_add_words() except they take arrays with
5429 *) In 'openssl passwd', verify passwords read from the terminal
5430 unless the '-salt' option is used (which usually means that
5431 verification would just waste user's time since the resulting
5432 hash is going to be compared with some given password hash)
5433 or the new '-noverify' option is used.
5435 This is an incompatible change, but it does not affect
5436 non-interactive use of 'openssl passwd' (passwords on the command
5437 line, '-stdin' option, '-in ...' option) and thus should not
5441 *) Remove all references to RSAref, since there's no more need for it.
5444 *) Make DSO load along a path given through an environment variable
5445 (SHLIB_PATH) with shl_load().
5448 *) Constify the ENGINE code as a result of BIGNUM constification.
5449 Also constify the RSA code and most things related to it. In a
5450 few places, most notable in the depth of the ASN.1 code, ugly
5451 casts back to non-const were required (to be solved at a later
5455 *) Make it so the openssl application has all engines loaded by default.
5458 *) Constify the BIGNUM routines a little more.
5461 *) Add the following functions:
5463 ENGINE_load_cswift()
5465 ENGINE_load_atalla()
5467 ENGINE_load_builtin_engines()
5469 That way, an application can itself choose if external engines that
5470 are built-in in OpenSSL shall ever be used or not. The benefit is
5471 that applications won't have to be linked with libdl or other dso
5472 libraries unless it's really needed.
5474 Changed 'openssl engine' to load all engines on demand.
5475 Changed the engine header files to avoid the duplication of some
5476 declarations (they differed!).
5479 *) 'openssl engine' can now list capabilities.
5482 *) Better error reporting in 'openssl engine'.
5485 *) Never call load_dh_param(NULL) in s_server.
5488 *) Add engine application. It can currently list engines by name and
5489 identity, and test if they are actually available.
5492 *) Improve RPM specification file by forcing symbolic linking and making
5493 sure the installed documentation is also owned by root.root.
5494 [Damien Miller <djm@mindrot.org>]
5496 *) Give the OpenSSL applications more possibilities to make use of
5497 keys (public as well as private) handled by engines.
5500 *) Add OCSP code that comes from CertCo.
5503 *) Add VMS support for the Rijndael code.
5506 *) Added untested support for Nuron crypto accelerator.
5509 *) Add support for external cryptographic devices. This code was
5510 previously distributed separately as the "engine" branch.
5511 [Geoff Thorpe, Richard Levitte]
5513 *) Rework the filename-translation in the DSO code. It is now possible to
5514 have far greater control over how a "name" is turned into a filename
5515 depending on the operating environment and any oddities about the
5516 different shared library filenames on each system.
5519 *) Support threads on FreeBSD-elf in Configure.
5522 *) Fix for SHA1 assembly problem with MASM: it produces
5523 warnings about corrupt line number information when assembling
5524 with debugging information. This is caused by the overlapping
5526 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5529 NCONF_get_number() has no error checking at all. As a replacement,
5530 NCONF_get_number_e() is defined (_e for "error checking") and is
5531 promoted strongly. The old NCONF_get_number is kept around for
5532 binary backward compatibility.
5533 Make it possible for methods to load from something other than a BIO,
5534 by providing a function pointer that is given a name instead of a BIO.
5535 For example, this could be used to load configuration data from an
5539 *) Fix for non blocking accept BIOs. Added new I/O special reason
5540 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5541 with non blocking I/O was not possible because no retry code was
5542 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5546 *) Added the beginnings of Rijndael support.
5549 *) Fix for bug in DirectoryString mask setting. Add support for
5550 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5551 to allow certificate printing to more controllable, additional
5552 'certopt' option to 'x509' to allow new printing options to be
5556 *) Clean old EAY MD5 hack from e_os.h.
5559 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5561 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5562 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5563 [Joe Orton, Steve Henson]
5565 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5567 *) Fix additional bug revealed by the NISCC test suite:
5569 Stop bug triggering large recursion when presented with
5570 certain ASN.1 tags (CVE-2003-0851)
5573 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5575 *) Fix various bugs revealed by running the NISCC test suite:
5577 Stop out of bounds reads in the ASN1 code when presented with
5578 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5580 If verify callback ignores invalid public key errors don't try to check
5581 certificate signature with the NULL public key.
5585 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5586 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5590 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5591 extra data after the compression methods not only for TLS 1.0
5592 but also for SSL 3.0 (as required by the specification).
5593 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5595 *) Change X509_certificate_type() to mark the key as exported/exportable
5596 when it's 512 *bits* long, not 512 bytes.
5599 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5601 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5602 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5603 a protocol version number mismatch like a decryption error
5604 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5607 *) Turn on RSA blinding by default in the default implementation
5608 to avoid a timing attack. Applications that don't want it can call
5609 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5610 They would be ill-advised to do so in most cases.
5611 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5613 *) Change RSA blinding code so that it works when the PRNG is not
5614 seeded (in this case, the secret RSA exponent is abused as
5615 an unpredictable seed -- if it is not unpredictable, there
5616 is no point in blinding anyway). Make RSA blinding thread-safe
5617 by remembering the creator's thread ID in rsa->blinding and
5618 having all other threads use local one-time blinding factors
5619 (this requires more computation than sharing rsa->blinding, but
5620 avoids excessive locking; and if an RSA object is not shared
5621 between threads, blinding will still be very fast).
5624 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5626 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5627 via timing by performing a MAC computation even if incorrrect
5628 block cipher padding has been found. This is a countermeasure
5629 against active attacks where the attacker has to distinguish
5630 between bad padding and a MAC verification error. (CVE-2003-0078)
5632 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5633 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5634 Martin Vuagnoux (EPFL, Ilion)]
5636 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5638 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5639 memory from it's contents. This is done with a counter that will
5640 place alternating values in each byte. This can be used to solve
5641 two issues: 1) the removal of calls to memset() by highly optimizing
5642 compilers, and 2) cleansing with other values than 0, since those can
5643 be read through on certain media, for example a swap space on disk.
5646 *) Bugfix: client side session caching did not work with external caching,
5647 because the session->cipher setting was not restored when reloading
5648 from the external cache. This problem was masked, when
5649 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5650 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5653 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5654 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5655 [Zeev Lieber <zeev-l@yahoo.com>]
5657 *) Undo an undocumented change introduced in 0.9.6e which caused
5658 repeated calls to OpenSSL_add_all_ciphers() and
5659 OpenSSL_add_all_digests() to be ignored, even after calling
5663 *) Change the default configuration reader to deal with last line not
5664 being properly terminated.
5667 *) Change X509_NAME_cmp() so it applies the special rules on handling
5668 DN values that are of type PrintableString, as well as RDNs of type
5669 emailAddress where the value has the type ia5String.
5670 [stefank@valicert.com via Richard Levitte]
5672 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5673 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5674 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5675 the bitwise-OR of the two for use by the majority of applications
5676 wanting this behaviour, and update the docs. The documented
5677 behaviour and actual behaviour were inconsistent and had been
5678 changing anyway, so this is more a bug-fix than a behavioural
5680 [Geoff Thorpe, diagnosed by Nadav Har'El]
5682 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5683 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5686 *) Fix initialization code race conditions in
5687 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5688 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5689 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5690 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5691 ssl2_get_cipher_by_char(),
5692 ssl3_get_cipher_by_char().
5693 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5695 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5696 the cached sessions are flushed, as the remove_cb() might use ex_data
5697 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5698 (see [openssl.org #212]).
5699 [Geoff Thorpe, Lutz Jaenicke]
5701 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5702 length, instead of the encoding length to d2i_ASN1_OBJECT.
5705 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5707 *) [In 0.9.6g-engine release:]
5708 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5709 [Lynn Gazis <lgazis@rainbow.com>]
5711 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5713 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5714 and get fix the header length calculation.
5715 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5716 Alon Kantor <alonk@checkpoint.com> (and others),
5719 *) Use proper error handling instead of 'assertions' in buffer
5720 overflow checks added in 0.9.6e. This prevents DoS (the
5721 assertions could call abort()).
5722 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5724 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5726 *) Add various sanity checks to asn1_get_length() to reject
5727 the ASN1 length bytes if they exceed sizeof(long), will appear
5728 negative or the content length exceeds the length of the
5730 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5732 *) Fix cipher selection routines: ciphers without encryption had no flags
5733 for the cipher strength set and where therefore not handled correctly
5734 by the selection routines (PR #130).
5737 *) Fix EVP_dsa_sha macro.
5741 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5742 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5743 that was added in OpenSSL 0.9.6d.
5745 As the countermeasure turned out to be incompatible with some
5746 broken SSL implementations, the new option is part of SSL_OP_ALL.
5747 SSL_OP_ALL is usually employed when compatibility with weird SSL
5748 implementations is desired (e.g. '-bugs' option to 's_client' and
5749 's_server'), so the new option is automatically set in many
5753 *) Changes in security patch:
5755 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5756 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5757 Air Force Materiel Command, USAF, under agreement number
5760 *) Add various sanity checks to asn1_get_length() to reject
5761 the ASN1 length bytes if they exceed sizeof(long), will appear
5762 negative or the content length exceeds the length of the
5763 supplied buffer. (CVE-2002-0659)
5764 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5766 *) Assertions for various potential buffer overflows, not known to
5768 [Ben Laurie (CHATS)]
5770 *) Various temporary buffers to hold ASCII versions of integers were
5771 too small for 64 bit platforms. (CVE-2002-0655)
5772 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5774 *) Remote buffer overflow in SSL3 protocol - an attacker could
5775 supply an oversized session ID to a client. (CVE-2002-0656)
5776 [Ben Laurie (CHATS)]
5778 *) Remote buffer overflow in SSL2 protocol - an attacker could
5779 supply an oversized client master key. (CVE-2002-0656)
5780 [Ben Laurie (CHATS)]
5782 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5784 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5785 encoded as NULL) with id-dsa-with-sha1.
5786 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5788 *) Check various X509_...() return values in apps/req.c.
5789 [Nils Larsch <nla@trustcenter.de>]
5791 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5792 an end-of-file condition would erronously be flagged, when the CRLF
5793 was just at the end of a processed block. The bug was discovered when
5794 processing data through a buffering memory BIO handing the data to a
5795 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5796 <ptsekov@syntrex.com> and Nedelcho Stanev.
5799 *) Implement a countermeasure against a vulnerability recently found
5800 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5801 before application data chunks to avoid the use of known IVs
5802 with data potentially chosen by the attacker.
5805 *) Fix length checks in ssl3_get_client_hello().
5808 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5809 to prevent ssl3_read_internal() from incorrectly assuming that
5810 ssl3_read_bytes() found application data while handshake
5811 processing was enabled when in fact s->s3->in_read_app_data was
5812 merely automatically cleared during the initial handshake.
5813 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5815 *) Fix object definitions for Private and Enterprise: they were not
5816 recognized in their shortname (=lowercase) representation. Extend
5817 obj_dat.pl to issue an error when using undefined keywords instead
5818 of silently ignoring the problem (Svenning Sorensen
5819 <sss@sss.dnsalias.net>).
5822 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5823 generators, i.e. generators other than 2 and 5. (Previously, the
5824 code did not properly initialise the 'add' and 'rem' values to
5825 BN_generate_prime().)
5827 In the new general case, we do not insist that 'generator' is
5828 actually a primitive root: This requirement is rather pointless;
5829 a generator of the order-q subgroup is just as good, if not
5833 *) Map new X509 verification errors to alerts. Discovered and submitted by
5834 Tom Wu <tom@arcot.com>.
5837 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5838 returning non-zero before the data has been completely received
5839 when using non-blocking I/O.
5840 [Bodo Moeller; problem pointed out by John Hughes]
5842 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5843 [Ben Laurie, Lutz Jaenicke]
5845 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5846 Yoram Zahavi <YoramZ@gilian.com>).
5849 *) Add information about CygWin 1.3 and on, and preserve proper
5850 configuration for the versions before that.
5851 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5853 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5854 check whether we deal with a copy of a session and do not delete from
5855 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5856 <izhar@checkpoint.com>.
5859 *) Do not store session data into the internal session cache, if it
5860 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5861 flag is set). Proposed by Aslam <aslam@funk.com>.
5864 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5868 *) [In 0.9.6d-engine release:]
5869 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5870 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5872 *) Add the configuration target linux-s390x.
5873 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5875 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5876 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5877 variable as an indication that a ClientHello message has been
5878 received. As the flag value will be lost between multiple
5879 invocations of ssl3_accept when using non-blocking I/O, the
5880 function may not be aware that a handshake has actually taken
5881 place, thus preventing a new session from being added to the
5884 To avoid this problem, we now set s->new_session to 2 instead of
5885 using a local variable.
5886 [Lutz Jaenicke, Bodo Moeller]
5888 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5889 if the SSL_R_LENGTH_MISMATCH error is detected.
5890 [Geoff Thorpe, Bodo Moeller]
5892 *) New 'shared_ldflag' column in Configure platform table.
5895 *) Fix EVP_CIPHER_mode macro.
5896 ["Dan S. Camper" <dan@bti.net>]
5898 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5899 type, we must throw them away by setting rr->length to 0.
5900 [D P Chang <dpc@qualys.com>]
5902 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5904 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5905 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5906 worked incorrectly for those cases where range = 10..._2 and
5907 3*range is two bits longer than range.)
5910 *) Only add signing time to PKCS7 structures if it is not already
5914 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5915 OBJ_ld_ce should be OBJ_id_ce.
5916 Also some ip-pda OIDs in crypto/objects/objects.txt were
5917 incorrect (cf. RFC 3039).
5918 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5920 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5921 returns early because it has nothing to do.
5922 [Andy Schneider <andy.schneider@bjss.co.uk>]
5924 *) [In 0.9.6c-engine release:]
5925 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5926 [Andy Schneider <andy.schneider@bjss.co.uk>]
5928 *) [In 0.9.6c-engine release:]
5929 Add support for Cryptographic Appliance's keyserver technology.
5930 (Use engine 'keyclient')
5931 [Cryptographic Appliances and Geoff Thorpe]
5933 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5934 is called via tools/c89.sh because arguments have to be
5935 rearranged (all '-L' options must appear before the first object
5937 [Richard Shapiro <rshapiro@abinitio.com>]
5939 *) [In 0.9.6c-engine release:]
5940 Add support for Broadcom crypto accelerator cards, backported
5942 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5944 *) [In 0.9.6c-engine release:]
5945 Add support for SureWare crypto accelerator cards from
5946 Baltimore Technologies. (Use engine 'sureware')
5947 [Baltimore Technologies and Mark Cox]
5949 *) [In 0.9.6c-engine release:]
5950 Add support for crypto accelerator cards from Accelerated
5951 Encryption Processing, www.aep.ie. (Use engine 'aep')
5952 [AEP Inc. and Mark Cox]
5954 *) Add a configuration entry for gcc on UnixWare.
5955 [Gary Benson <gbenson@redhat.com>]
5957 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5958 messages are stored in a single piece (fixed-length part and
5959 variable-length part combined) and fix various bugs found on the way.
5962 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5963 instead. BIO_gethostbyname() does not know what timeouts are
5964 appropriate, so entries would stay in cache even when they have
5966 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5968 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5969 faced with a pathologically small ClientHello fragment that does
5970 not contain client_version: Instead of aborting with an error,
5971 simply choose the highest available protocol version (i.e.,
5972 TLS 1.0 unless it is disabled). In practice, ClientHello
5973 messages are never sent like this, but this change gives us
5974 strictly correct behaviour at least for TLS.
5977 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5978 never resets s->method to s->ctx->method when called from within
5979 one of the SSL handshake functions.
5980 [Bodo Moeller; problem pointed out by Niko Baric]
5982 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5983 (sent using the client's version number) if client_version is
5984 smaller than the protocol version in use. Also change
5985 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5986 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5987 the client will at least see that alert.
5990 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5994 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5995 client receives HelloRequest while in a handshake.
5996 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5998 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5999 should end in 'break', not 'goto end' which circuments various
6000 cleanups done in state SSL_ST_OK. But session related stuff
6001 must be disabled for SSL_ST_OK in the case that we just sent a
6004 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6005 before just sending a HelloRequest.
6006 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6008 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6009 reveal whether illegal block cipher padding was found or a MAC
6010 verification error occured. (Neither SSLerr() codes nor alerts
6011 are directly visible to potential attackers, but the information
6012 may leak via logfiles.)
6014 Similar changes are not required for the SSL 2.0 implementation
6015 because the number of padding bytes is sent in clear for SSL 2.0,
6016 and the extra bytes are just ignored. However ssl/s2_pkt.c
6017 failed to verify that the purported number of padding bytes is in
6021 *) Add OpenUNIX-8 support including shared libraries
6022 (Boyd Lynn Gerber <gerberb@zenez.com>).
6025 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6026 'wristwatch attack' using huge encoding parameters (cf.
6027 James H. Manger's CRYPTO 2001 paper). Note that the
6028 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6029 encoding parameters and hence was not vulnerable.
6032 *) BN_sqr() bug fix.
6033 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6035 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6036 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6037 followed by modular reduction.
6038 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6040 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6041 equivalent based on BN_pseudo_rand() instead of BN_rand().
6044 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6045 This function was broken, as the check for a new client hello message
6046 to handle SGC did not allow these large messages.
6047 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6050 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6053 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6054 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6057 *) Rework the configuration and shared library support for Tru64 Unix.
6058 The configuration part makes use of modern compiler features and
6059 still retains old compiler behavior for those that run older versions
6060 of the OS. The shared library support part includes a variant that
6061 uses the RPATH feature, and is available through the special
6062 configuration target "alpha-cc-rpath", which will never be selected
6064 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6066 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6067 with the same message size as in ssl3_get_certificate_request().
6068 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6069 messages might inadvertently be reject as too long.
6070 [Petr Lampa <lampa@fee.vutbr.cz>]
6072 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6075 *) Modified SSL library such that the verify_callback that has been set
6076 specificly for an SSL object with SSL_set_verify() is actually being
6077 used. Before the change, a verify_callback set with this function was
6078 ignored and the verify_callback() set in the SSL_CTX at the time of
6079 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6080 to allow the necessary settings.
6083 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6084 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6085 done automatically (in contradiction to the requirements of the C
6086 standard). This made problems when used from OpenSSH.
6089 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6090 dh->length and always used
6092 BN_rand_range(priv_key, dh->p).
6094 BN_rand_range() is not necessary for Diffie-Hellman, and this
6095 specific range makes Diffie-Hellman unnecessarily inefficient if
6096 dh->length (recommended exponent length) is much smaller than the
6097 length of dh->p. We could use BN_rand_range() if the order of
6098 the subgroup was stored in the DH structure, but we only have
6103 BN_rand(priv_key, l, ...)
6105 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6111 RSA_eay_public_encrypt
6112 RSA_eay_private_decrypt
6113 RSA_eay_private_encrypt (signing)
6114 RSA_eay_public_decrypt (signature verification)
6116 (default implementations for RSA_public_encrypt,
6117 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6118 always reject numbers >= n.
6121 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6122 to synchronize access to 'locking_thread'. This is necessary on
6123 systems where access to 'locking_thread' (an 'unsigned long'
6124 variable) is not atomic.
6127 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6128 *before* setting the 'crypto_lock_rand' flag. The previous code had
6129 a race condition if 0 is a valid thread ID.
6130 [Travis Vitek <vitek@roguewave.com>]
6132 *) Add support for shared libraries under Irix.
6133 [Albert Chin-A-Young <china@thewrittenword.com>]
6135 *) Add configuration option to build on Linux on both big-endian and
6137 [Ralf Baechle <ralf@uni-koblenz.de>]
6139 *) Add the possibility to create shared libraries on HP-UX.
6142 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6144 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6145 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6146 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6147 PRNG state recovery was possible based on the output of
6148 one PRNG request appropriately sized to gain knowledge on
6149 'md' followed by enough consecutive 1-byte PRNG requests
6150 to traverse all of 'state'.
6152 1. When updating 'md_local' (the current thread's copy of 'md')
6153 during PRNG output generation, hash all of the previous
6154 'md_local' value, not just the half used for PRNG output.
6156 2. Make the number of bytes from 'state' included into the hash
6157 independent from the number of PRNG bytes requested.
6159 The first measure alone would be sufficient to avoid
6160 Markku-Juhani's attack. (Actually it had never occurred
6161 to me that the half of 'md_local' used for chaining was the
6162 half from which PRNG output bytes were taken -- I had always
6163 assumed that the secret half would be used.) The second
6164 measure makes sure that additional data from 'state' is never
6165 mixed into 'md_local' in small portions; this heuristically
6166 further strengthens the PRNG.
6169 *) Fix crypto/bn/asm/mips3.s.
6172 *) When only the key is given to "enc", the IV is undefined. Print out
6173 an error message in this case.
6176 *) Handle special case when X509_NAME is empty in X509 printing routines.
6179 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6180 positive and less than q.
6183 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6184 used: it isn't thread safe and the add_lock_callback should handle
6186 [Paul Rose <Paul.Rose@bridge.com>]
6188 *) Verify that incoming data obeys the block size in
6189 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6193 [Ulf Möller, Bodo Möller]
6195 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6196 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6197 when fixing the server behaviour for backwards-compatible 'client
6198 hello' messages. (Note that the attack is impractical against
6199 SSL 3.0 and TLS 1.0 anyway because length and version checking
6200 means that the probability of guessing a valid ciphertext is
6201 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6204 Before 0.9.5, the countermeasure (hide the error by generating a
6205 random 'decryption result') did not work properly because
6206 ERR_clear_error() was missing, meaning that SSL_get_error() would
6207 detect the supposedly ignored error.
6209 Both problems are now fixed.
6212 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6213 (previously it was 1024).
6216 *) Fix for compatibility mode trust settings: ignore trust settings
6217 unless some valid trust or reject settings are present.
6220 *) Fix for blowfish EVP: its a variable length cipher.
6223 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6224 parameters in DSA public key structures and return an error in the
6225 DSA routines if parameters are absent.
6228 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6229 in the current directory if neither $RANDFILE nor $HOME was set.
6230 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6231 caused some confusion to Windows users who haven't defined $HOME.
6232 Thus RAND_file_name() is changed again: e_os.h can define a
6233 DEFAULT_HOME, which will be used if $HOME is not set.
6234 For Windows, we use "C:"; on other platforms, we still require
6235 environment variables.
6237 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6238 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6239 having multiple threads call RAND_poll() concurrently.
6242 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6243 combination of a flag and a thread ID variable.
6244 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6245 flag), *other* threads can enter ssleay_add_bytes without obeying
6246 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6247 that they do not hold after the first thread unsets add_do_not_lock).
6250 *) Change bctest again: '-x' expressions are not available in all
6254 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6256 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6257 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6259 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6260 the default extension for executables, if any. Also, make the perl
6261 scripts that use symlink() to test if it really exists and use "cp"
6262 if it doesn't. All this made OpenSSL compilable and installable in
6266 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6267 If SEQUENCE is length is indefinite just set c->slen to the total
6268 amount of data available.
6269 [Steve Henson, reported by shige@FreeBSD.org]
6270 [This change does not apply to 0.9.7.]
6272 *) Change bctest to avoid here-documents inside command substitution
6273 (workaround for FreeBSD /bin/sh bug).
6274 For compatibility with Ultrix, avoid shell functions (introduced
6275 in the bctest version that searches along $PATH).
6278 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6279 with des_encrypt() defined on some operating systems, like Solaris
6283 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6284 On the Importance of Eliminating Errors in Cryptographic
6285 Computations, J. Cryptology 14 (2001) 2, 101-119,
6286 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6289 *) MIPS assembler BIGNUM division bug fix.
6292 *) Disabled incorrect Alpha assembler code.
6295 *) Fix PKCS#7 decode routines so they correctly update the length
6296 after reading an EOC for the EXPLICIT tag.
6298 [This change does not apply to 0.9.7.]
6300 *) Fix bug in PKCS#12 key generation routines. This was triggered
6301 if a 3DES key was generated with a 0 initial byte. Include
6302 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6303 (but broken) behaviour.
6306 *) Enhance bctest to search for a working bc along $PATH and print
6308 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6310 *) Fix memory leaks in err.c: free err_data string if necessary;
6311 don't write to the wrong index in ERR_set_error_data.
6314 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6318 *) Replace rdtsc with _emit statements for VC++ version 5.
6319 [Jeremy Cooper <jeremy@baymoo.org>]
6321 *) Make it possible to reuse SSLv2 sessions.
6324 *) In copy_email() check for >= 0 as a return value for
6325 X509_NAME_get_index_by_NID() since 0 is a valid index.
6326 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6328 *) Avoid coredump with unsupported or invalid public keys by checking if
6329 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6330 PKCS7_verify() fails with non detached data.
6333 *) Don't use getenv in library functions when run as setuid/setgid.
6334 New function OPENSSL_issetugid().
6337 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6338 due to incorrect handling of multi-threading:
6340 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6342 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6344 3. Count how many times MemCheck_off() has been called so that
6345 nested use can be treated correctly. This also avoids
6346 inband-signalling in the previous code (which relied on the
6347 assumption that thread ID 0 is impossible).
6350 *) Add "-rand" option also to s_client and s_server.
6353 *) Fix CPU detection on Irix 6.x.
6354 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6355 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6357 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6360 [This change does not apply to 0.9.7.]
6362 *) Use the cached encoding of an X509_NAME structure rather than
6363 copying it. This is apparently the reason for the libsafe "errors"
6364 but the code is actually correct.
6367 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6368 Bleichenbacher's DSA attack.
6369 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6370 to be set and top=0 forces the highest bit to be set; top=-1 is new
6371 and leaves the highest bit random.
6372 [Ulf Moeller, Bodo Moeller]
6374 *) In the NCONF_...-based implementations for CONF_... queries
6375 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6376 a temporary CONF structure with the data component set to NULL
6377 (which gives segmentation faults in lh_retrieve).
6378 Instead, use NULL for the CONF pointer in CONF_get_string and
6379 CONF_get_number (which may use environment variables) and directly
6380 return NULL from CONF_get_section.
6383 *) Fix potential buffer overrun for EBCDIC.
6386 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6387 keyUsage if basicConstraints absent for a CA.
6390 *) Make SMIME_write_PKCS7() write mail header values with a format that
6391 is more generally accepted (no spaces before the semicolon), since
6392 some programs can't parse those values properly otherwise. Also make
6393 sure BIO's that break lines after each write do not create invalid
6397 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6398 macros previously used would not encode an empty SEQUENCE OF
6399 and break the signature.
6401 [This change does not apply to 0.9.7.]
6403 *) Zero the premaster secret after deriving the master secret in
6407 *) Add some EVP_add_digest_alias registrations (as found in
6408 OpenSSL_add_all_digests()) to SSL_library_init()
6409 aka OpenSSL_add_ssl_algorithms(). This provides improved
6410 compatibility with peers using X.509 certificates
6411 with unconventional AlgorithmIdentifier OIDs.
6414 *) Fix for Irix with NO_ASM.
6415 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6417 *) ./config script fixes.
6418 [Ulf Moeller, Richard Levitte]
6420 *) Fix 'openssl passwd -1'.
6423 *) Change PKCS12_key_gen_asc() so it can cope with non null
6424 terminated strings whose length is passed in the passlen
6425 parameter, for example from PEM callbacks. This was done
6426 by adding an extra length parameter to asc2uni().
6427 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6429 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6430 call failed, free the DSA structure.
6433 *) Fix to uni2asc() to cope with zero length Unicode strings.
6434 These are present in some PKCS#12 files.
6437 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6438 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6439 when writing a 32767 byte record.
6440 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6442 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6443 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6445 (RSA objects have a reference count access to which is protected
6446 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6447 so they are meant to be shared between threads.)
6448 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6449 "Reddie, Steven" <Steven.Reddie@ca.com>]
6451 *) Fix a deadlock in CRYPTO_mem_leaks().
6454 *) Use better test patterns in bntest.
6457 *) rand_win.c fix for Borland C.
6460 *) BN_rshift bugfix for n == 0.
6463 *) Add a 'bctest' script that checks for some known 'bc' bugs
6464 so that 'make test' does not abort just because 'bc' is broken.
6467 *) Store verify_result within SSL_SESSION also for client side to
6468 avoid potential security hole. (Re-used sessions on the client side
6469 always resulted in verify_result==X509_V_OK, not using the original
6470 result of the server certificate verification.)
6473 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6474 SSL3_RT_APPLICATION_DATA, return 0.
6475 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6479 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6480 releases, have been re-implemented by renaming the previous
6481 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6482 and ssl3_read_internal, respectively, and adding 'peek' parameters
6483 to them. The new ssl[23]_{read,peek} functions are calls to
6484 ssl[23]_read_internal with the 'peek' flag set appropriately.
6485 A 'peek' parameter has also been added to ssl3_read_bytes, which
6486 does the actual work for ssl3_read_internal.
6489 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6490 the method-specific "init()" handler. Also clean up ex_data after
6491 calling the method-specific "finish()" handler. Previously, this was
6492 happening the other way round.
6495 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6496 The previous value, 12, was not always sufficient for BN_mod_exp().
6499 *) Make sure that shared libraries get the internal name engine with
6500 the full version number and not just 0. This should mark the
6501 shared libraries as not backward compatible. Of course, this should
6502 be changed again when we can guarantee backward binary compatibility.
6505 *) Fix typo in get_cert_by_subject() in by_dir.c
6506 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6508 *) Rework the system to generate shared libraries:
6510 - Make note of the expected extension for the shared libraries and
6511 if there is a need for symbolic links from for example libcrypto.so.0
6512 to libcrypto.so.0.9.7. There is extended info in Configure for
6515 - Make as few rebuilds of the shared libraries as possible.
6517 - Still avoid linking the OpenSSL programs with the shared libraries.
6519 - When installing, install the shared libraries separately from the
6523 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6525 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6526 and not in SSL_clear because the latter is also used by the
6527 accept/connect functions; previously, the settings made by
6528 SSL_set_read_ahead would be lost during the handshake.
6529 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6531 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6532 Previously, it would create entries for disableed algorithms no
6536 *) Added several new manual pages for SSL_* function.
6539 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6541 *) In ssl23_get_client_hello, generate an error message when faced
6542 with an initial SSL 3.0/TLS record that is too small to contain the
6543 first two bytes of the ClientHello message, i.e. client_version.
6544 (Note that this is a pathologic case that probably has never happened
6545 in real life.) The previous approach was to use the version number
6546 from the record header as a substitute; but our protocol choice
6547 should not depend on that one because it is not authenticated
6548 by the Finished messages.
6551 *) More robust randomness gathering functions for Windows.
6552 [Jeffrey Altman <jaltman@columbia.edu>]
6554 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6555 not set then we don't setup the error code for issuer check errors
6556 to avoid possibly overwriting other errors which the callback does
6557 handle. If an application does set the flag then we assume it knows
6558 what it is doing and can handle the new informational codes
6562 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6563 a general "ANY" type, as such it should be able to decode anything
6564 including tagged types. However it didn't check the class so it would
6565 wrongly interpret tagged types in the same way as their universal
6566 counterpart and unknown types were just rejected. Changed so that the
6567 tagged and unknown types are handled in the same way as a SEQUENCE:
6568 that is the encoding is stored intact. There is also a new type
6569 "V_ASN1_OTHER" which is used when the class is not universal, in this
6570 case we have no idea what the actual type is so we just lump them all
6574 *) On VMS, stdout may very well lead to a file that is written to
6575 in a record-oriented fashion. That means that every write() will
6576 write a separate record, which will be read separately by the
6577 programs trying to read from it. This can be very confusing.
6579 The solution is to put a BIO filter in the way that will buffer
6580 text until a linefeed is reached, and then write everything a
6581 line at a time, so every record written will be an actual line,
6582 not chunks of lines and not (usually doesn't happen, but I've
6583 seen it once) several lines in one record. BIO_f_linebuffer() is
6586 Currently, it's a VMS-only method, because that's where it has
6587 been tested well enough.
6590 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6591 it can return incorrect results.
6592 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6593 but it was in 0.9.6-beta[12].)
6596 *) Disable the check for content being present when verifying detached
6597 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6598 include zero length content when signing messages.
6601 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6602 BIO_ctrl (for BIO pairs).
6605 *) Add DSO method for VMS.
6608 *) Bug fix: Montgomery multiplication could produce results with the
6612 *) Add RPM specification openssl.spec and modify it to build three
6613 packages. The default package contains applications, application
6614 documentation and run-time libraries. The devel package contains
6615 include files, static libraries and function documentation. The
6616 doc package contains the contents of the doc directory. The original
6617 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6620 *) Add a large number of documentation files for many SSL routines.
6621 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6623 *) Add a configuration entry for Sony News 4.
6624 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6626 *) Don't set the two most significant bits to one when generating a
6627 random number < q in the DSA library.
6630 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6631 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6632 the underlying transport is blocking) if a handshake took place.
6633 (The default behaviour is needed by applications such as s_client
6634 and s_server that use select() to determine when to use SSL_read;
6635 but for applications that know in advance when to expect data, it
6636 just makes things more complicated.)
6639 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6643 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6644 work better on such systems.
6645 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6647 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6648 Update PKCS12_parse() so it copies the friendlyName and the
6649 keyid to the certificates aux info.
6652 *) Fix bug in PKCS7_verify() which caused an infinite loop
6653 if there was more than one signature.
6654 [Sven Uszpelkat <su@celocom.de>]
6656 *) Major change in util/mkdef.pl to include extra information
6657 about each symbol, as well as presentig variables as well
6658 as functions. This change means that there's n more need
6659 to rebuild the .num files when some algorithms are excluded.
6662 *) Allow the verify time to be set by an application,
6663 rather than always using the current time.
6666 *) Phase 2 verify code reorganisation. The certificate
6667 verify code now looks up an issuer certificate by a
6668 number of criteria: subject name, authority key id
6669 and key usage. It also verifies self signed certificates
6670 by the same criteria. The main comparison function is
6671 X509_check_issued() which performs these checks.
6673 Lot of changes were necessary in order to support this
6674 without completely rewriting the lookup code.
6676 Authority and subject key identifier are now cached.
6678 The LHASH 'certs' is X509_STORE has now been replaced
6679 by a STACK_OF(X509_OBJECT). This is mainly because an
6680 LHASH can't store or retrieve multiple objects with
6681 the same hash value.
6683 As a result various functions (which were all internal
6684 use only) have changed to handle the new X509_STORE
6685 structure. This will break anything that messed round
6686 with X509_STORE internally.
6688 The functions X509_STORE_add_cert() now checks for an
6689 exact match, rather than just subject name.
6691 The X509_STORE API doesn't directly support the retrieval
6692 of multiple certificates matching a given criteria, however
6693 this can be worked round by performing a lookup first
6694 (which will fill the cache with candidate certificates)
6695 and then examining the cache for matches. This is probably
6696 the best we can do without throwing out X509_LOOKUP
6697 entirely (maybe later...).
6699 The X509_VERIFY_CTX structure has been enhanced considerably.
6701 All certificate lookup operations now go via a get_issuer()
6702 callback. Although this currently uses an X509_STORE it
6703 can be replaced by custom lookups. This is a simple way
6704 to bypass the X509_STORE hackery necessary to make this
6705 work and makes it possible to use more efficient techniques
6706 in future. A very simple version which uses a simple
6707 STACK for its trusted certificate store is also provided
6708 using X509_STORE_CTX_trusted_stack().
6710 The verify_cb() and verify() callbacks now have equivalents
6711 in the X509_STORE_CTX structure.
6713 X509_STORE_CTX also has a 'flags' field which can be used
6714 to customise the verify behaviour.
6717 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6718 excludes S/MIME capabilities.
6721 *) When a certificate request is read in keep a copy of the
6722 original encoding of the signed data and use it when outputing
6723 again. Signatures then use the original encoding rather than
6724 a decoded, encoded version which may cause problems if the
6725 request is improperly encoded.
6728 *) For consistency with other BIO_puts implementations, call
6729 buffer_write(b, ...) directly in buffer_puts instead of calling
6732 In BIO_puts, increment b->num_write as in BIO_write.
6733 [Peter.Sylvester@EdelWeb.fr]
6735 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6736 BN_zero, we may not return a BIGNUM with an array consisting of
6740 *) Avoid calling abort() from within the library when problems are
6741 detected, except if preprocessor symbols have been defined
6742 (such as REF_CHECK, BN_DEBUG etc.).
6745 *) New openssl application 'rsautl'. This utility can be
6746 used for low level RSA operations. DER public key
6747 BIO/fp routines also added.
6750 *) New Configure entry and patches for compiling on QNX 4.
6751 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6753 *) A demo state-machine implementation was sponsored by
6754 Nuron (http://www.nuron.com/) and is now available in
6755 demos/state_machine.
6758 *) New options added to the 'dgst' utility for signature
6759 generation and verification.
6762 *) Unrecognized PKCS#7 content types are now handled via a
6763 catch all ASN1_TYPE structure. This allows unsupported
6764 types to be stored as a "blob" and an application can
6765 encode and decode it manually.
6768 *) Fix various signed/unsigned issues to make a_strex.c
6770 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6772 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6773 length if passed a buffer. ASN1_INTEGER_to_BN failed
6774 if passed a NULL BN and its argument was negative.
6775 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6777 *) Modification to PKCS#7 encoding routines to output definite
6778 length encoding. Since currently the whole structures are in
6779 memory there's not real point in using indefinite length
6780 constructed encoding. However if OpenSSL is compiled with
6781 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6784 *) Added BIO_vprintf() and BIO_vsnprintf().
6787 *) Added more prefixes to parse for in the the strings written
6788 through a logging bio, to cover all the levels that are available
6789 through syslog. The prefixes are now:
6791 PANIC, EMERG, EMR => LOG_EMERG
6792 ALERT, ALR => LOG_ALERT
6793 CRIT, CRI => LOG_CRIT
6794 ERROR, ERR => LOG_ERR
6795 WARNING, WARN, WAR => LOG_WARNING
6796 NOTICE, NOTE, NOT => LOG_NOTICE
6797 INFO, INF => LOG_INFO
6798 DEBUG, DBG => LOG_DEBUG
6800 and as before, if none of those prefixes are present at the
6801 beginning of the string, LOG_ERR is chosen.
6803 On Win32, the LOG_* levels are mapped according to this:
6805 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6806 LOG_WARNING => EVENTLOG_WARNING_TYPE
6807 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6811 *) Made it possible to reconfigure with just the configuration
6812 argument "reconf" or "reconfigure". The command line arguments
6813 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6814 and are retrieved from there when reconfiguring.
6818 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6820 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6823 *) The obj_dat.pl script was messing up the sorting of object
6824 names. The reason was that it compared the quoted version
6825 of strings as a result "OCSP" > "OCSP Signing" because
6826 " > SPACE. Changed script to store unquoted versions of
6827 names and add quotes on output. It was also omitting some
6828 names from the lookup table if they were given a default
6829 value (that is if SN is missing it is given the same
6830 value as LN and vice versa), these are now added on the
6831 grounds that if an object has a name we should be able to
6832 look it up. Finally added warning output when duplicate
6833 short or long names are found.
6836 *) Changes needed for Tandem NSK.
6837 [Scott Uroff <scott@xypro.com>]
6839 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6840 RSA_padding_check_SSLv23(), special padding was never detected
6841 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6842 version rollback attacks was not effective.
6844 In s23_clnt.c, don't use special rollback-attack detection padding
6845 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6846 client; similarly, in s23_srvr.c, don't do the rollback check if
6847 SSL 2.0 is the only protocol enabled in the server.
6850 *) Make it possible to get hexdumps of unprintable data with 'openssl
6851 asn1parse'. By implication, the functions ASN1_parse_dump() and
6852 BIO_dump_indent() are added.
6855 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6856 these print out strings and name structures based on various
6857 flags including RFC2253 support and proper handling of
6858 multibyte characters. Added options to the 'x509' utility
6859 to allow the various flags to be set.
6862 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6863 Also change the functions X509_cmp_current_time() and
6864 X509_gmtime_adj() work with an ASN1_TIME structure,
6865 this will enable certificates using GeneralizedTime in validity
6866 dates to be checked.
6869 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6870 negative public key encodings) on by default,
6871 NO_NEG_PUBKEY_BUG can be set to disable it.
6874 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6875 content octets. An i2c_ASN1_OBJECT is unnecessary because
6876 the encoding can be trivially obtained from the structure.
6879 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6880 not read locks (CRYPTO_r_[un]lock).
6883 *) A first attempt at creating official support for shared
6884 libraries through configuration. I've kept it so the
6885 default is static libraries only, and the OpenSSL programs
6886 are always statically linked for now, but there are
6887 preparations for dynamic linking in place.
6888 This has been tested on Linux and Tru64.
6891 *) Randomness polling function for Win9x, as described in:
6892 Peter Gutmann, Software Generation of Practically Strong
6896 *) Fix so PRNG is seeded in req if using an already existing
6900 *) New options to smime application. -inform and -outform
6901 allow alternative formats for the S/MIME message including
6902 PEM and DER. The -content option allows the content to be
6903 specified separately. This should allow things like Netscape
6904 form signing output easier to verify.
6907 *) Fix the ASN1 encoding of tags using the 'long form'.
6910 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6911 STRING types. These convert content octets to and from the
6912 underlying type. The actual tag and length octets are
6913 already assumed to have been read in and checked. These
6914 are needed because all other string types have virtually
6915 identical handling apart from the tag. By having versions
6916 of the ASN1 functions that just operate on content octets
6917 IMPLICIT tagging can be handled properly. It also allows
6918 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6919 and ASN1_INTEGER are identical apart from the tag.
6922 *) Change the handling of OID objects as follows:
6924 - New object identifiers are inserted in objects.txt, following
6925 the syntax given in objects.README.
6926 - objects.pl is used to process obj_mac.num and create a new
6928 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6931 This is currently kind of a hack, and the perl code in objects.pl
6932 isn't very elegant, but it works as I intended. The simplest way
6933 to check that it worked correctly is to look in obj_dat.h and
6934 check the array nid_objs and make sure the objects haven't moved
6935 around (this is important!). Additions are OK, as well as
6936 consistent name changes.
6939 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6942 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6943 The given file adds to whatever has already been seeded into the
6944 random pool through the RANDFILE configuration file option or
6945 environment variable, or the default random state file.
6948 *) mkstack.pl now sorts each macro group into lexical order.
6949 Previously the output order depended on the order the files
6950 appeared in the directory, resulting in needless rewriting
6954 *) Patches to make OpenSSL compile under Win32 again. Mostly
6955 work arounds for the VC++ problem that it treats func() as
6956 func(void). Also stripped out the parts of mkdef.pl that
6957 added extra typesafe functions: these no longer exist.
6960 *) Reorganisation of the stack code. The macros are now all
6961 collected in safestack.h . Each macro is defined in terms of
6962 a "stack macro" of the form SKM_<name>(type, a, b). The
6963 DEBUG_SAFESTACK is now handled in terms of function casts,
6964 this has the advantage of retaining type safety without the
6965 use of additional functions. If DEBUG_SAFESTACK is not defined
6966 then the non typesafe macros are used instead. Also modified the
6967 mkstack.pl script to handle the new form. Needs testing to see
6968 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6969 the default if no major problems. Similar behaviour for ASN1_SET_OF
6970 and PKCS12_STACK_OF.
6973 *) When some versions of IIS use the 'NET' form of private key the
6974 key derivation algorithm is different. Normally MD5(password) is
6975 used as a 128 bit RC4 key. In the modified case
6976 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6977 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6978 as the old Netscape_RSA functions except they have an additional
6979 'sgckey' parameter which uses the modified algorithm. Also added
6980 an -sgckey command line option to the rsa utility. Thanks to
6981 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6982 algorithm to openssl-dev.
6985 *) The evp_local.h macros were using 'c.##kname' which resulted in
6986 invalid expansion on some systems (SCO 5.0.5 for example).
6987 Corrected to 'c.kname'.
6988 [Phillip Porch <root@theporch.com>]
6990 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6991 a STACK of email addresses from a certificate or request, these look
6992 in the subject name and the subject alternative name extensions and
6993 omit any duplicate addresses.
6996 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6997 This makes DSA verification about 2 % faster.
7000 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7001 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7002 plus overhead for 1024 bit moduli).
7003 This makes exponentiations about 0.5 % faster for 1024 bit
7004 exponents (as measured by "openssl speed rsa2048").
7007 *) Rename memory handling macros to avoid conflicts with other
7009 Malloc => OPENSSL_malloc
7010 Malloc_locked => OPENSSL_malloc_locked
7011 Realloc => OPENSSL_realloc
7012 Free => OPENSSL_free
7015 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7016 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7019 *) CygWin32 support.
7020 [John Jarvie <jjarvie@newsguy.com>]
7022 *) The type-safe stack code has been rejigged. It is now only compiled
7023 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7024 by default all type-specific stack functions are "#define"d back to
7025 standard stack functions. This results in more streamlined output
7026 but retains the type-safety checking possibilities of the original
7030 *) The STACK code has been cleaned up, and certain type declarations
7031 that didn't make a lot of sense have been brought in line. This has
7032 also involved a cleanup of sorts in safestack.h to more correctly
7033 map type-safe stack functions onto their plain stack counterparts.
7034 This work has also resulted in a variety of "const"ifications of
7035 lots of the code, especially "_cmp" operations which should normally
7036 be prototyped with "const" parameters anyway.
7039 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7040 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7041 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7042 where all of 'md' is used each time the PRNG is used, but 'state'
7043 is used only indexed by a cyclic counter. As entropy may not be
7044 well distributed from the beginning, 'md' is important as a
7045 chaining variable. However, the output function chains only half
7046 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7047 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7048 in all of 'state' being rewritten, with the new values depending
7049 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7052 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7053 the handshake is continued after ssl_verify_cert_chain();
7054 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7055 can lead to 'unexplainable' connection aborts later.
7056 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7058 *) Major EVP API cipher revision.
7059 Add hooks for extra EVP features. This allows various cipher
7060 parameters to be set in the EVP interface. Support added for variable
7061 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7062 setting of RC2 and RC5 parameters.
7064 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7067 Remove lots of duplicated code from the EVP library. For example *every*
7068 cipher init() function handles the 'iv' in the same way according to the
7069 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7070 for CFB and OFB modes they zero ctx->num.
7072 New functionality allows removal of S/MIME code RC2 hack.
7074 Most of the routines have the same form and so can be declared in terms
7077 By shifting this to the top level EVP_CipherInit() it can be removed from
7078 all individual ciphers. If the cipher wants to handle IVs or keys
7079 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7082 Change lots of functions like EVP_EncryptUpdate() to now return a
7083 value: although software versions of the algorithms cannot fail
7084 any installed hardware versions can.
7087 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7088 this option is set, tolerate broken clients that send the negotiated
7089 protocol version number instead of the requested protocol version
7093 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7094 i.e. non-zero for export ciphersuites, zero otherwise.
7095 Previous versions had this flag inverted, inconsistent with
7096 rsa_tmp_cb (..._TMP_RSA_CB).
7097 [Bodo Moeller; problem reported by Amit Chopra]
7099 *) Add missing DSA library text string. Work around for some IIS
7100 key files with invalid SEQUENCE encoding.
7103 *) Add a document (doc/standards.txt) that list all kinds of standards
7104 and so on that are implemented in OpenSSL.
7107 *) Enhance c_rehash script. Old version would mishandle certificates
7108 with the same subject name hash and wouldn't handle CRLs at all.
7109 Added -fingerprint option to crl utility, to support new c_rehash
7113 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7116 *) Fix for SSL server purpose checking. Server checking was
7117 rejecting certificates which had extended key usage present
7118 but no ssl client purpose.
7119 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7121 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7122 is a little unclear about how a blank password is handled.
7123 Since the password in encoded as a BMPString with terminating
7124 double NULL a zero length password would end up as just the
7125 double NULL. However no password at all is different and is
7126 handled differently in the PKCS#12 key generation code. NS
7127 treats a blank password as zero length. MSIE treats it as no
7128 password on export: but it will try both on import. We now do
7129 the same: PKCS12_parse() tries zero length and no password if
7130 the password is set to "" or NULL (NULL is now a valid password:
7131 it wasn't before) as does the pkcs12 application.
7134 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7135 perror when PEM_read_bio_X509_REQ fails, the error message must
7136 be obtained from the error queue.
7139 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7140 it in ERR_remove_state if appropriate, and change ERR_get_state
7141 accordingly to avoid race conditions (this is necessary because
7142 thread_hash is no longer constant once set).
7145 *) Bugfix for linux-elf makefile.one.
7148 *) RSA_get_default_method() will now cause a default
7149 RSA_METHOD to be chosen if one doesn't exist already.
7150 Previously this was only set during a call to RSA_new()
7151 or RSA_new_method(NULL) meaning it was possible for
7152 RSA_get_default_method() to return NULL.
7155 *) Added native name translation to the existing DSO code
7156 that will convert (if the flag to do so is set) filenames
7157 that are sufficiently small and have no path information
7158 into a canonical native form. Eg. "blah" converted to
7159 "libblah.so" or "blah.dll" etc.
7162 *) New function ERR_error_string_n(e, buf, len) which is like
7163 ERR_error_string(e, buf), but writes at most 'len' bytes
7164 including the 0 terminator. For ERR_error_string_n, 'buf'
7166 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7168 *) CONF library reworked to become more general. A new CONF
7169 configuration file reader "class" is implemented as well as a
7170 new functions (NCONF_*, for "New CONF") to handle it. The now
7171 old CONF_* functions are still there, but are reimplemented to
7172 work in terms of the new functions. Also, a set of functions
7173 to handle the internal storage of the configuration data is
7174 provided to make it easier to write new configuration file
7175 reader "classes" (I can definitely see something reading a
7176 configuration file in XML format, for example), called _CONF_*,
7177 or "the configuration storage API"...
7179 The new configuration file reading functions are:
7181 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7182 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7184 NCONF_default, NCONF_WIN32
7186 NCONF_dump_fp, NCONF_dump_bio
7188 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7189 NCONF_new creates a new CONF object. This works in the same way
7190 as other interfaces in OpenSSL, like the BIO interface.
7191 NCONF_dump_* dump the internal storage of the configuration file,
7192 which is useful for debugging. All other functions take the same
7193 arguments as the old CONF_* functions wth the exception of the
7194 first that must be a `CONF *' instead of a `LHASH *'.
7196 To make it easer to use the new classes with the old CONF_* functions,
7197 the function CONF_set_default_method is provided.
7200 *) Add '-tls1' option to 'openssl ciphers', which was already
7201 mentioned in the documentation but had not been implemented.
7202 (This option is not yet really useful because even the additional
7203 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7206 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7207 OpenSSL-based applications) load shared libraries and bind to
7208 them in a portable way.
7209 [Geoff Thorpe, with contributions from Richard Levitte]
7211 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7213 *) Make sure _lrotl and _lrotr are only used with MSVC.
7215 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7216 (the default implementation of RAND_status).
7218 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7219 to '-clrext' (= clear extensions), as intended and documented.
7220 [Bodo Moeller; inconsistency pointed out by Michael Attili
7223 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7224 was larger than the MD block size.
7225 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7227 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7228 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7229 using the passed key: if the passed key was a private key the result
7230 of X509_print(), for example, would be to print out all the private key
7234 *) des_quad_cksum() byte order bug fix.
7235 [Ulf Möller, using the problem description in krb4-0.9.7, where
7236 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7238 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7240 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7242 *) For easily testing in shell scripts whether some command
7243 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7244 returns with exit code 0 iff no command of the given name is available.
7245 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7246 the output goes to stdout and nothing is printed to stderr.
7247 Additional arguments are always ignored.
7249 Since for each cipher there is a command of the same name,
7250 the 'no-cipher' compilation switches can be tested this way.
7252 ('openssl no-XXX' is not able to detect pseudo-commands such
7253 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7256 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7259 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7260 is set; it will be thrown away anyway because each handshake creates
7262 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7263 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7264 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7265 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7268 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7269 'Q' and 'R' lose their special meanings (quit/renegotiate).
7270 This is part of what -quiet does; unlike -quiet, -ign_eof
7271 does not suppress any output.
7274 *) Add compatibility options to the purpose and trust code. The
7275 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7276 accepts a certificate or CA, this was the previous behaviour,
7277 with all the associated security issues.
7279 X509_TRUST_COMPAT is the old trust behaviour: only and
7280 automatically trust self signed roots in certificate store. A
7281 new trust setting X509_TRUST_DEFAULT is used to specify that
7282 a purpose has no associated trust setting and it should instead
7283 use the value in the default purpose.
7286 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7287 and fix a memory leak.
7290 *) In util/mkerr.pl (which implements 'make errors'), preserve
7291 reason strings from the previous version of the .c file, as
7292 the default to have only downcase letters (and digits) in
7293 automatically generated reasons codes is not always appropriate.
7296 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7297 using strerror. Previously, ERR_reason_error_string() returned
7298 library names as reason strings for SYSerr; but SYSerr is a special
7299 case where small numbers are errno values, not library numbers.
7302 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7303 converts DSA parameters into DH parameters. (When creating parameters,
7304 DSA_generate_parameters is used.)
7307 *) Include 'length' (recommended exponent length) in C code generated
7308 by 'openssl dhparam -C'.
7311 *) The second argument to set_label in perlasm was already being used
7312 so couldn't be used as a "file scope" flag. Moved to third argument
7316 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7317 instead of RAND_bytes for encryption IVs and salts.
7320 *) Include RAND_status() into RAND_METHOD instead of implementing
7321 it only for md_rand.c Otherwise replacing the PRNG by calling
7322 RAND_set_rand_method would be impossible.
7325 *) Don't let DSA_generate_key() enter an infinite loop if the random
7326 number generation fails.
7329 *) New 'rand' application for creating pseudo-random output.
7332 *) Added configuration support for Linux/IA64
7333 [Rolf Haberrecker <rolf@suse.de>]
7335 *) Assembler module support for Mingw32.
7338 *) Shared library support for HPUX (in shlib/).
7339 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7341 *) Shared library support for Solaris gcc.
7342 [Lutz Behnke <behnke@trustcenter.de>]
7344 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7346 *) PKCS7_encrypt() was adding text MIME headers twice because they
7347 were added manually and by SMIME_crlf_copy().
7350 *) In bntest.c don't call BN_rand with zero bits argument.
7351 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7353 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7354 case was implemented. This caused BN_div_recp() to fail occasionally.
7357 *) Add an optional second argument to the set_label() in the perl
7358 assembly language builder. If this argument exists and is set
7359 to 1 it signals that the assembler should use a symbol whose
7360 scope is the entire file, not just the current function. This
7361 is needed with MASM which uses the format label:: for this scope.
7362 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7364 *) Change the ASN1 types so they are typedefs by default. Before
7365 almost all types were #define'd to ASN1_STRING which was causing
7366 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7370 *) Change names of new functions to the new get1/get0 naming
7371 convention: After 'get1', the caller owns a reference count
7372 and has to call ..._free; 'get0' returns a pointer to some
7373 data structure without incrementing reference counters.
7374 (Some of the existing 'get' functions increment a reference
7375 counter, some don't.)
7376 Similarly, 'set1' and 'add1' functions increase reference
7377 counters or duplicate objects.
7380 *) Allow for the possibility of temp RSA key generation failure:
7381 the code used to assume it always worked and crashed on failure.
7384 *) Fix potential buffer overrun problem in BIO_printf().
7385 [Ulf Möller, using public domain code by Patrick Powell; problem
7386 pointed out by David Sacerdote <das33@cornell.edu>]
7388 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7389 RAND_egd() and RAND_status(). In the command line application,
7390 the EGD socket can be specified like a seed file using RANDFILE
7394 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7395 Some CAs (e.g. Verisign) distribute certificates in this form.
7398 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7399 list to exclude them. This means that no special compilation option
7400 is needed to use anonymous DH: it just needs to be included in the
7404 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7405 EVP_MD_type. The old functionality is available in a new macro called
7406 EVP_MD_md(). Change code that uses it and update docs.
7409 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7410 where the 'void *' argument is replaced by a function pointer argument.
7411 Previously 'void *' was abused to point to functions, which works on
7412 many platforms, but is not correct. As these functions are usually
7413 called by macros defined in OpenSSL header files, most source code
7414 should work without changes.
7417 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7418 sections with information on -D... compiler switches used for
7419 compiling the library so that applications can see them. To enable
7420 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7421 must be defined. E.g.,
7422 #define OPENSSL_ALGORITHM_DEFINES
7423 #include <openssl/opensslconf.h>
7424 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7425 [Richard Levitte, Ulf and Bodo Möller]
7427 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7431 *) Change the 'other' type in certificate aux info to a STACK_OF
7432 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7433 the required ASN1 format: arbitrary types determined by an OID.
7436 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7437 argument to 'req'. This is not because the function is newer or
7438 better than others it just uses the work 'NEW' in the certificate
7439 request header lines. Some software needs this.
7442 *) Reorganise password command line arguments: now passwords can be
7443 obtained from various sources. Delete the PEM_cb function and make
7444 it the default behaviour: i.e. if the callback is NULL and the
7445 usrdata argument is not NULL interpret it as a null terminated pass
7446 phrase. If usrdata and the callback are NULL then the pass phrase
7447 is prompted for as usual.
7450 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7451 the support is automatically enabled. The resulting binaries will
7452 autodetect the card and use it if present.
7453 [Ben Laurie and Compaq Inc.]
7455 *) Work around for Netscape hang bug. This sends certificate request
7456 and server done in one record. Since this is perfectly legal in the
7457 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7458 the bugs/SSLv3 entry for more info.
7461 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7464 *) Add -rand argument to smime and pkcs12 applications and read/write
7468 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7471 *) Add command line password options to the remaining applications.
7474 *) Bug fix for BN_div_recp() for numerators with an even number of
7478 *) More tests in bntest.c, and changed test_bn output.
7481 *) ./config recognizes MacOS X now.
7484 *) Bug fix for BN_div() when the first words of num and divsor are
7485 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7488 *) Add support for various broken PKCS#8 formats, and command line
7489 options to produce them.
7492 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7493 get temporary BIGNUMs from a BN_CTX.
7496 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7500 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7501 include a #define from the old name to the new. The original intent
7502 was that statically linked binaries could for example just call
7503 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7504 link with digests. This never worked becayse SSLeay_add_all_digests()
7505 and SSLeay_add_all_ciphers() were in the same source file so calling
7506 one would link with the other. They are now in separate source files.
7509 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7512 *) Use a less unusual form of the Miller-Rabin primality test (it used
7513 a binary algorithm for exponentiation integrated into the Miller-Rabin
7514 loop, our standard modexp algorithms are faster).
7517 *) Support for the EBCDIC character set completed.
7518 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7520 *) Source code cleanups: use const where appropriate, eliminate casts,
7521 use void * instead of char * in lhash.
7524 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7525 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7526 this the server could overwrite ephemeral keys that the client
7530 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7531 using 50 iterations of the Rabin-Miller test.
7533 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7534 iterations of the Rabin-Miller test as required by the appendix
7535 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7536 As BN_is_prime_fasttest includes trial division, DSA parameter
7537 generation becomes much faster.
7539 This implies a change for the callback functions in DSA_is_prime
7540 and DSA_generate_parameters: The callback function is called once
7541 for each positive witness in the Rabin-Miller test, not just
7542 occasionally in the inner loop; and the parameters to the
7543 callback function now provide an iteration count for the outer
7544 loop rather than for the current invocation of the inner loop.
7545 DSA_generate_parameters additionally can call the callback
7546 function with an 'iteration count' of -1, meaning that a
7547 candidate has passed the trial division test (when q is generated
7548 from an application-provided seed, trial division is skipped).
7551 *) New function BN_is_prime_fasttest that optionally does trial
7552 division before starting the Rabin-Miller test and has
7553 an additional BN_CTX * argument (whereas BN_is_prime always
7554 has to allocate at least one BN_CTX).
7555 'callback(1, -1, cb_arg)' is called when a number has passed the
7556 trial division stage.
7559 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7563 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7566 *) New function BN_pseudo_rand().
7569 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7570 bignum version of BN_from_montgomery() with the working code from
7571 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7575 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7576 made it impossible to use the same SSL_SESSION data structure in
7577 SSL2 clients in multiple threads.
7580 *) The return value of RAND_load_file() no longer counts bytes obtained
7581 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7582 to seed the PRNG (previously an explicit byte count was required).
7583 [Ulf Möller, Bodo Möller]
7585 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7586 used (char *) instead of (void *) and had casts all over the place.
7589 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7592 *) Retain source code compatibility for BN_prime_checks macro:
7593 BN_is_prime(..., BN_prime_checks, ...) now uses
7594 BN_prime_checks_for_size to determine the appropriate number of
7595 Rabin-Miller iterations.
7598 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7599 DH_CHECK_P_NOT_SAFE_PRIME.
7600 (Check if this is true? OpenPGP calls them "strong".)
7603 *) Merge the functionality of "dh" and "gendh" programs into a new program
7604 "dhparam". The old programs are retained for now but will handle DH keys
7605 (instead of parameters) in future.
7608 *) Make the ciphers, s_server and s_client programs check the return values
7609 when a new cipher list is set.
7612 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7613 ciphers. Before when the 56bit ciphers were enabled the sorting was
7616 The syntax for the cipher sorting has been extended to support sorting by
7617 cipher-strength (using the strength_bits hard coded in the tables).
7618 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7620 Fix a bug in the cipher-command parser: when supplying a cipher command
7621 string with an "undefined" symbol (neither command nor alphanumeric
7622 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7623 an error is flagged.
7625 Due to the strength-sorting extension, the code of the
7626 ssl_create_cipher_list() function was completely rearranged. I hope that
7627 the readability was also increased :-)
7628 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7630 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7631 for the first serial number and places 2 in the serial number file. This
7632 avoids problems when the root CA is created with serial number zero and
7633 the first user certificate has the same issuer name and serial number
7637 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7638 the new code. Add documentation for this stuff.
7641 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7642 X509_*() to X509at_*() on the grounds that they don't handle X509
7643 structures and behave in an analagous way to the X509v3 functions:
7644 they shouldn't be called directly but wrapper functions should be used
7647 So we also now have some wrapper functions that call the X509at functions
7648 when passed certificate requests. (TO DO: similar things can be done with
7649 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7650 things. Some of these need some d2i or i2d and print functionality
7651 because they handle more complex structures.)
7654 *) Add missing #ifndefs that caused missing symbols when building libssl
7655 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7656 NO_RSA in ssl/s2*.c.
7657 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7659 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7660 has a return value which indicates the quality of the random data
7661 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7662 error queue. New function RAND_pseudo_bytes() generates output that is
7663 guaranteed to be unique but not unpredictable. RAND_add is like
7664 RAND_seed, but takes an extra argument for an entropy estimate
7665 (RAND_seed always assumes full entropy).
7668 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7669 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7670 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7671 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7672 false-positive rate of at most 2^-80 for random input.
7675 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7678 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7679 in the 0.9.5 release), this returns the chain
7680 from an X509_CTX structure with a dup of the stack and all
7681 the X509 reference counts upped: so the stack will exist
7682 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7685 Also make SSL_SESSION_print() print out the verify return
7689 *) Add manpage for the pkcs12 command. Also change the default
7690 behaviour so MAC iteration counts are used unless the new
7691 -nomaciter option is used. This improves file security and
7692 only older versions of MSIE (4.0 for example) need it.
7695 *) Honor the no-xxx Configure options when creating .DEF files.
7698 *) Add PKCS#10 attributes to field table: challengePassword,
7699 unstructuredName and unstructuredAddress. These are taken from
7700 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7701 international characters are used.
7703 More changes to X509_ATTRIBUTE code: allow the setting of types
7704 based on strings. Remove the 'loc' parameter when adding
7705 attributes because these will be a SET OF encoding which is sorted
7709 *) Initial changes to the 'req' utility to allow request generation
7710 automation. This will allow an application to just generate a template
7711 file containing all the field values and have req construct the
7714 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7715 used all over the place including certificate requests and PKCS#7
7716 structures. They are currently handled manually where necessary with
7717 some primitive wrappers for PKCS#7. The new functions behave in a
7718 manner analogous to the X509 extension functions: they allow
7719 attributes to be looked up by NID and added.
7721 Later something similar to the X509V3 code would be desirable to
7722 automatically handle the encoding, decoding and printing of the
7723 more complex types. The string types like challengePassword can
7724 be handled by the string table functions.
7726 Also modified the multi byte string table handling. Now there is
7727 a 'global mask' which masks out certain types. The table itself
7728 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7729 is useful when for example there is only one permissible type
7730 (as in countryName) and using the mask might result in no valid
7734 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7735 SSL_get_peer_finished to allow applications to obtain the latest
7736 Finished messages sent to the peer or expected from the peer,
7737 respectively. (SSL_get_peer_finished is usually the Finished message
7738 actually received from the peer, otherwise the protocol will be aborted.)
7740 As the Finished message are message digests of the complete handshake
7741 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7742 be used for external authentication procedures when the authentication
7743 provided by SSL/TLS is not desired or is not enough.
7746 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7747 the host supports BWX extension and if Compaq C is present on the
7748 $PATH. Just exploiting of the BWX extension results in 20-30%
7749 performance kick for some algorithms, e.g. DES and RC4 to mention
7750 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7754 *) Add support for MS "fast SGC". This is arguably a violation of the
7755 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7756 weak crypto and after checking the certificate is SGC a second one
7757 with strong crypto. MS SGC stops the first handshake after receiving
7758 the server certificate message and sends a second client hello. Since
7759 a server will typically do all the time consuming operations before
7760 expecting any further messages from the client (server key exchange
7761 is the most expensive) there is little difference between the two.
7763 To get OpenSSL to support MS SGC we have to permit a second client
7764 hello message after we have sent server done. In addition we have to
7765 reset the MAC if we do get this second client hello.
7768 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7769 if a DER encoded private key is RSA or DSA traditional format. Changed
7770 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7771 format DER encoded private key. Newer code should use PKCS#8 format which
7772 has the key type encoded in the ASN1 structure. Added DER private key
7773 support to pkcs8 application.
7776 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7777 ciphersuites has been selected (as required by the SSL 3/TLS 1
7778 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7779 is set, we interpret this as a request to violate the specification
7780 (the worst that can happen is a handshake failure, and 'correct'
7781 behaviour would result in a handshake failure anyway).
7784 *) In SSL_CTX_add_session, take into account that there might be multiple
7785 SSL_SESSION structures with the same session ID (e.g. when two threads
7786 concurrently obtain them from an external cache).
7787 The internal cache can handle only one SSL_SESSION with a given ID,
7788 so if there's a conflict, we now throw out the old one to achieve
7792 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7793 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7794 some routines that use cipher OIDs: some ciphers do not have OIDs
7795 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7799 *) Simplify the trust setting structure and code. Now we just have
7800 two sequences of OIDs for trusted and rejected settings. These will
7801 typically have values the same as the extended key usage extension
7802 and any application specific purposes.
7804 The trust checking code now has a default behaviour: it will just
7805 check for an object with the same NID as the passed id. Functions can
7806 be provided to override either the default behaviour or the behaviour
7807 for a given id. SSL client, server and email already have functions
7808 in place for compatibility: they check the NID and also return "trusted"
7809 if the certificate is self signed.
7812 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7813 traditional format into an EVP_PKEY structure.
7816 *) Add a password callback function PEM_cb() which either prompts for
7817 a password if usr_data is NULL or otherwise assumes it is a null
7818 terminated password. Allow passwords to be passed on command line
7819 environment or config files in a few more utilities.
7822 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7823 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7824 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7825 Update documentation.
7828 *) Support for ASN1 "NULL" type. This could be handled before by using
7829 ASN1_TYPE but there wasn't any function that would try to read a NULL
7830 and produce an error if it couldn't. For compatibility we also have
7831 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7832 don't allocate anything because they don't need to.
7835 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7837 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7839 *) Rebuild of the memory allocation routines used by OpenSSL code and
7840 possibly others as well. The purpose is to make an interface that
7841 provide hooks so anyone can build a separate set of allocation and
7842 deallocation routines to be used by OpenSSL, for example memory
7843 pool implementations, or something else, which was previously hard
7844 since Malloc(), Realloc() and Free() were defined as macros having
7845 the values malloc, realloc and free, respectively (except for Win32
7846 compilations). The same is provided for memory debugging code.
7847 OpenSSL already comes with functionality to find memory leaks, but
7848 this gives people a chance to debug other memory problems.
7850 With these changes, a new set of functions and macros have appeared:
7852 CRYPTO_set_mem_debug_functions() [F]
7853 CRYPTO_get_mem_debug_functions() [F]
7854 CRYPTO_dbg_set_options() [F]
7855 CRYPTO_dbg_get_options() [F]
7856 CRYPTO_malloc_debug_init() [M]
7858 The memory debug functions are NULL by default, unless the library
7859 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7860 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7861 gives the standard debugging functions that come with OpenSSL) or
7862 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7863 provided by the library user) must be used. When the standard
7864 debugging functions are used, CRYPTO_dbg_set_options can be used to
7865 request additional information:
7866 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7867 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7869 Also, things like CRYPTO_set_mem_functions will always give the
7870 expected result (the new set of functions is used for allocation
7871 and deallocation) at all times, regardless of platform and compiler
7874 To finish it up, some functions that were never use in any other
7875 way than through macros have a new API and new semantic:
7878 CRYPTO_dbg_realloc()
7881 All macros of value have retained their old syntax.
7882 [Richard Levitte and Bodo Moeller]
7884 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7885 ordering of SMIMECapabilities wasn't in "strength order" and there
7886 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7890 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7891 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7892 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7894 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7895 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7896 functionality to handle multipart/signed properly) and a utility
7897 called 'smime' to call all this stuff. This is based on code I
7898 originally wrote for Celo who have kindly allowed it to be
7899 included in OpenSSL.
7902 *) Add variants des_set_key_checked and des_set_key_unchecked of
7903 des_set_key (aka des_key_sched). Global variable des_check_key
7904 decides which of these is called by des_set_key; this way
7905 des_check_key behaves as it always did, but applications and
7906 the library itself, which was buggy for des_check_key == 1,
7907 have a cleaner way to pick the version they need.
7910 *) New function PKCS12_newpass() which changes the password of a
7914 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7915 dynamic mix. In both cases the ids can be used as an index into the
7916 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7917 functions so they accept a list of the field values and the
7918 application doesn't need to directly manipulate the X509_TRUST
7922 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7926 *) Modify the way the V3 extension code looks up extensions. This now
7927 works in a similar way to the object code: we have some "standard"
7928 extensions in a static table which is searched with OBJ_bsearch()
7929 and the application can add dynamic ones if needed. The file
7930 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7931 updated whenever a new extension is added to the core code and kept
7932 in ext_nid order. There is a simple program 'tabtest.c' which checks
7933 this. New extensions are not added too often so this file can readily
7934 be maintained manually.
7936 There are two big advantages in doing things this way. The extensions
7937 can be looked up immediately and no longer need to be "added" using
7938 X509V3_add_standard_extensions(): this function now does nothing.
7939 [Side note: I get *lots* of email saying the extension code doesn't
7940 work because people forget to call this function]
7941 Also no dynamic allocation is done unless new extensions are added:
7942 so if we don't add custom extensions there is no need to call
7943 X509V3_EXT_cleanup().
7946 *) Modify enc utility's salting as follows: make salting the default. Add a
7947 magic header, so unsalted files fail gracefully instead of just decrypting
7948 to garbage. This is because not salting is a big security hole, so people
7949 should be discouraged from doing it.
7952 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7953 digest to be passed on the command line but it only used this
7954 parameter when signing a certificate. Modified so all relevant
7955 operations are affected by the digest parameter including the
7956 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7957 DSA key was used because it didn't fix the digest.
7960 *) Initial certificate chain verify code. Currently tests the untrusted
7961 certificates for consistency with the verify purpose (which is set
7962 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7964 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7965 this is because it will reject chains with invalid extensions whereas
7966 every previous version of OpenSSL and SSLeay made no checks at all.
7968 Trust code: checks the root CA for the relevant trust settings. Trust
7969 settings have an initial value consistent with the verify purpose: e.g.
7970 if the verify purpose is for SSL client use it expects the CA to be
7971 trusted for SSL client use. However the default value can be changed to
7972 permit custom trust settings: one example of this would be to only trust
7973 certificates from a specific "secure" set of CAs.
7975 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7976 which should be used for version portability: especially since the
7977 verify structure is likely to change more often now.
7979 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7980 to set them. If not set then assume SSL clients will verify SSL servers
7983 Two new options to the verify program: -untrusted allows a set of
7984 untrusted certificates to be passed in and -purpose which sets the
7985 intended purpose of the certificate. If a purpose is set then the
7986 new chain verify code is used to check extension consistency.
7989 *) Support for the authority information access extension.
7992 *) Modify RSA and DSA PEM read routines to transparently handle
7993 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7994 public keys in a format compatible with certificate
7995 SubjectPublicKeyInfo structures. Unfortunately there were already
7996 functions called *_PublicKey_* which used various odd formats so
7997 these are retained for compatibility: however the DSA variants were
7998 never in a public release so they have been deleted. Changed dsa/rsa
7999 utilities to handle the new format: note no releases ever handled public
8000 keys so we should be OK.
8002 The primary motivation for this change is to avoid the same fiasco
8003 that dogs private keys: there are several incompatible private key
8004 formats some of which are standard and some OpenSSL specific and
8005 require various evil hacks to allow partial transparent handling and
8006 even then it doesn't work with DER formats. Given the option anything
8007 other than PKCS#8 should be dumped: but the other formats have to
8008 stay in the name of compatibility.
8010 With public keys and the benefit of hindsight one standard format
8011 is used which works with EVP_PKEY, RSA or DSA structures: though
8012 it clearly returns an error if you try to read the wrong kind of key.
8014 Added a -pubkey option to the 'x509' utility to output the public key.
8015 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8016 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8017 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8018 that do the same as the EVP_PKEY_assign_*() except they up the
8019 reference count of the added key (they don't "swallow" the
8023 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8024 CRLs would fail if the file contained no certificates or no CRLs:
8025 added a new function to read in both types and return the number
8026 read: this means that if none are read it will be an error. The
8027 DER versions of the certificate and CRL reader would always fail
8028 because it isn't possible to mix certificates and CRLs in DER format
8029 without choking one or the other routine. Changed this to just read
8030 a certificate: this is the best we can do. Also modified the code
8031 in apps/verify.c to take notice of return codes: it was previously
8032 attempting to read in certificates from NULL pointers and ignoring
8033 any errors: this is one reason why the cert and CRL reader seemed
8034 to work. It doesn't check return codes from the default certificate
8035 routines: these may well fail if the certificates aren't installed.
8038 *) Code to support otherName option in GeneralName.
8041 *) First update to verify code. Change the verify utility
8042 so it warns if it is passed a self signed certificate:
8043 for consistency with the normal behaviour. X509_verify
8044 has been modified to it will now verify a self signed
8045 certificate if *exactly* the same certificate appears
8046 in the store: it was previously impossible to trust a
8047 single self signed certificate. This means that:
8048 openssl verify ss.pem
8049 now gives a warning about a self signed certificate but
8050 openssl verify -CAfile ss.pem ss.pem
8054 *) For servers, store verify_result in SSL_SESSION data structure
8055 (and add it to external session representation).
8056 This is needed when client certificate verifications fails,
8057 but an application-provided verification callback (set by
8058 SSL_CTX_set_cert_verify_callback) allows accepting the session
8059 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8060 but returns 1): When the session is reused, we have to set
8061 ssl->verify_result to the appropriate error code to avoid
8063 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8065 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8066 case in PKCS7_dataInit() where the signed PKCS7 structure
8067 didn't contain any existing data because it was being created.
8068 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8070 *) Add a salt to the key derivation routines in enc.c. This
8071 forms the first 8 bytes of the encrypted file. Also add a
8072 -S option to allow a salt to be input on the command line.
8075 *) New function X509_cmp(). Oddly enough there wasn't a function
8076 to compare two certificates. We do this by working out the SHA1
8077 hash and comparing that. X509_cmp() will be needed by the trust
8081 *) SSL_get1_session() is like SSL_get_session(), but increments
8082 the reference count in the SSL_SESSION returned.
8083 [Geoff Thorpe <geoff@eu.c2.net>]
8085 *) Fix for 'req': it was adding a null to request attributes.
8086 Also change the X509_LOOKUP and X509_INFO code to handle
8087 certificate auxiliary information.
8090 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8094 *) Add the possibility to add extra information to the memory leak
8095 detecting output, to form tracebacks, showing from where each
8096 allocation was originated: CRYPTO_push_info("constant string") adds
8097 the string plus current file name and line number to a per-thread
8098 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8099 is like calling CYRPTO_pop_info() until the stack is empty.
8100 Also updated memory leak detection code to be multi-thread-safe.
8103 *) Add options -text and -noout to pkcs7 utility and delete the
8104 encryption options which never did anything. Update docs.
8107 *) Add options to some of the utilities to allow the pass phrase
8108 to be included on either the command line (not recommended on
8109 OSes like Unix) or read from the environment. Update the
8110 manpages and fix a few bugs.
8113 *) Add a few manpages for some of the openssl commands.
8116 *) Fix the -revoke option in ca. It was freeing up memory twice,
8117 leaking and not finding already revoked certificates.
8120 *) Extensive changes to support certificate auxiliary information.
8121 This involves the use of X509_CERT_AUX structure and X509_AUX
8122 functions. An X509_AUX function such as PEM_read_X509_AUX()
8123 can still read in a certificate file in the usual way but it
8124 will also read in any additional "auxiliary information". By
8125 doing things this way a fair degree of compatibility can be
8126 retained: existing certificates can have this information added
8127 using the new 'x509' options.
8129 Current auxiliary information includes an "alias" and some trust
8130 settings. The trust settings will ultimately be used in enhanced
8131 certificate chain verification routines: currently a certificate
8132 can only be trusted if it is self signed and then it is trusted
8136 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8137 The problem was that one of the replacement routines had not been working
8138 since SSLeay releases. For now the offending routine has been replaced
8139 with non-optimised assembler. Even so, this now gives around 95%
8140 performance improvement for 1024 bit RSA signs.
8143 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8144 handling. Most clients have the effective key size in bits equal to
8145 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8146 A few however don't do this and instead use the size of the decrypted key
8147 to determine the RC2 key length and the AlgorithmIdentifier to determine
8148 the effective key length. In this case the effective key length can still
8149 be 40 bits but the key length can be 168 bits for example. This is fixed
8150 by manually forcing an RC2 key into the EVP_PKEY structure because the
8151 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8152 the key length and effective key length are equal.
8155 *) Add a bunch of functions that should simplify the creation of
8156 X509_NAME structures. Now you should be able to do:
8157 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8158 and have it automatically work out the correct field type and fill in
8159 the structures. The more adventurous can try:
8160 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8161 and it will (hopefully) work out the correct multibyte encoding.
8164 *) Change the 'req' utility to use the new field handling and multibyte
8165 copy routines. Before the DN field creation was handled in an ad hoc
8166 way in req, ca, and x509 which was rather broken and didn't support
8167 BMPStrings or UTF8Strings. Since some software doesn't implement
8168 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8169 using the dirstring_type option. See the new comment in the default
8170 openssl.cnf for more info.
8173 *) Make crypto/rand/md_rand.c more robust:
8174 - Assure unique random numbers after fork().
8175 - Make sure that concurrent threads access the global counter and
8176 md serializably so that we never lose entropy in them
8177 or use exactly the same state in multiple threads.
8178 Access to the large state is not always serializable because
8179 the additional locking could be a performance killer, and
8180 md should be large enough anyway.
8183 *) New file apps/app_rand.c with commonly needed functionality
8184 for handling the random seed file.
8186 Use the random seed file in some applications that previously did not:
8188 dsaparam -genkey (which also ignored its '-rand' option),
8191 x509 (when signing).
8192 Except on systems with /dev/urandom, it is crucial to have a random
8193 seed file at least for key creation, DSA signing, and for DH exchanges;
8194 for RSA signatures we could do without one.
8196 gendh and gendsa (unlike genrsa) used to read only the first byte
8197 of each file listed in the '-rand' option. The function as previously
8198 found in genrsa is now in app_rand.c and is used by all programs
8199 that support '-rand'.
8202 *) In RAND_write_file, use mode 0600 for creating files;
8203 don't just chmod when it may be too late.
8206 *) Report an error from X509_STORE_load_locations
8207 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8210 *) New function ASN1_mbstring_copy() this copies a string in either
8211 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8212 into an ASN1_STRING type. A mask of permissible types is passed
8213 and it chooses the "minimal" type to use or an error if not type
8217 *) Add function equivalents to the various macros in asn1.h. The old
8218 macros are retained with an M_ prefix. Code inside the library can
8219 use the M_ macros. External code (including the openssl utility)
8220 should *NOT* in order to be "shared library friendly".
8223 *) Add various functions that can check a certificate's extensions
8224 to see if it usable for various purposes such as SSL client,
8225 server or S/MIME and CAs of these types. This is currently
8226 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8227 verification. Also added a -purpose flag to x509 utility to
8228 print out all the purposes.
8231 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8235 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8236 for, obtain and decode and extension and obtain its critical flag.
8237 This allows all the necessary extension code to be handled in a
8238 single function call.
8241 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8242 platforms. See crypto/rc4/rc4_enc.c for further details.
8245 *) New -noout option to asn1parse. This causes no output to be produced
8246 its main use is when combined with -strparse and -out to extract data
8247 from a file (which may not be in ASN.1 format).
8250 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8251 when producing the local key id.
8252 [Richard Levitte <levitte@stacken.kth.se>]
8254 *) New option -dhparam in s_server. This allows a DH parameter file to be
8255 stated explicitly. If it is not stated then it tries the first server
8256 certificate file. The previous behaviour hard coded the filename
8260 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8261 a public key to be input or output. For example:
8262 openssl rsa -in key.pem -pubout -out pubkey.pem
8263 Also added necessary DSA public key functions to handle this.
8266 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8267 in the message. This was handled by allowing
8268 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8269 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8271 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8272 to the end of the strings whereas this didn't. This would cause problems
8273 if strings read with d2i_ASN1_bytes() were later modified.
8274 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8276 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8277 data and it contains EOF it will end up returning an error. This is
8278 caused by input 46 bytes long. The cause is due to the way base64
8279 BIOs find the start of base64 encoded data. They do this by trying a
8280 trial decode on each line until they find one that works. When they
8281 do a flag is set and it starts again knowing it can pass all the
8282 data directly through the decoder. Unfortunately it doesn't reset
8283 the context it uses. This means that if EOF is reached an attempt
8284 is made to pass two EOFs through the context and this causes the
8285 resulting error. This can also cause other problems as well. As is
8286 usual with these problems it takes *ages* to find and the fix is
8287 trivial: move one line.
8288 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8290 *) Ugly workaround to get s_client and s_server working under Windows. The
8291 old code wouldn't work because it needed to select() on sockets and the
8292 tty (for keypresses and to see if data could be written). Win32 only
8293 supports select() on sockets so we select() with a 1s timeout on the
8294 sockets and then see if any characters are waiting to be read, if none
8295 are present then we retry, we also assume we can always write data to
8296 the tty. This isn't nice because the code then blocks until we've
8297 received a complete line of data and it is effectively polling the
8298 keyboard at 1s intervals: however it's quite a bit better than not
8299 working at all :-) A dedicated Windows application might handle this
8300 with an event loop for example.
8303 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8304 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8305 will be called when RSA_sign() and RSA_verify() are used. This is useful
8306 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8307 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8308 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8309 This necessitated the support of an extra signature type NID_md5_sha1
8310 for SSL signatures and modifications to the SSL library to use it instead
8311 of calling RSA_public_decrypt() and RSA_private_encrypt().
8314 *) Add new -verify -CAfile and -CApath options to the crl program, these
8315 will lookup a CRL issuers certificate and verify the signature in a
8316 similar way to the verify program. Tidy up the crl program so it
8317 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8318 less strict. It will now permit CRL extensions even if it is not
8319 a V2 CRL: this will allow it to tolerate some broken CRLs.
8322 *) Initialize all non-automatic variables each time one of the openssl
8323 sub-programs is started (this is necessary as they may be started
8324 multiple times from the "OpenSSL>" prompt).
8325 [Lennart Bang, Bodo Moeller]
8327 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8328 removing all other RSA functionality (this is what NO_RSA does). This
8329 is so (for example) those in the US can disable those operations covered
8330 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8334 *) Non-copying interface to BIO pairs.
8335 (still largely untested)
8338 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8339 ASCII string. This was handled independently in various places before.
8342 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8343 UTF8 strings a character at a time.
8346 *) Use client_version from client hello to select the protocol
8347 (s23_srvr.c) and for RSA client key exchange verification
8348 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8351 *) Add various utility functions to handle SPKACs, these were previously
8352 handled by poking round in the structure internals. Added new function
8353 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8354 print, verify and generate SPKACs. Based on an original idea from
8355 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8358 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8361 *) Allow the config file extension section to be overwritten on the
8362 command line. Based on an original idea from Massimiliano Pala
8363 <madwolf@comune.modena.it>. The new option is called -extensions
8364 and can be applied to ca, req and x509. Also -reqexts to override
8365 the request extensions in req and -crlexts to override the crl extensions
8369 *) Add new feature to the SPKAC handling in ca. Now you can include
8370 the same field multiple times by preceding it by "XXXX." for example:
8373 this is the same syntax as used in the req config file.
8376 *) Allow certificate extensions to be added to certificate requests. These
8377 are specified in a 'req_extensions' option of the req section of the
8378 config file. They can be printed out with the -text option to req but
8379 are otherwise ignored at present.
8382 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8383 data read consists of only the final block it would not decrypted because
8384 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8385 A misplaced 'break' also meant the decrypted final block might not be
8386 copied until the next read.
8389 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8390 a few extra parameters to the DH structure: these will be useful if
8391 for example we want the value of 'q' or implement X9.42 DH.
8394 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8395 provides hooks that allow the default DSA functions or functions on a
8396 "per key" basis to be replaced. This allows hardware acceleration and
8397 hardware key storage to be handled without major modification to the
8398 library. Also added low level modexp hooks and CRYPTO_EX structure and
8399 associated functions.
8402 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8403 as "read only": it can't be written to and the buffer it points to will
8404 not be freed. Reading from a read only BIO is much more efficient than
8405 a normal memory BIO. This was added because there are several times when
8406 an area of memory needs to be read from a BIO. The previous method was
8407 to create a memory BIO and write the data to it, this results in two
8408 copies of the data and an O(n^2) reading algorithm. There is a new
8409 function BIO_new_mem_buf() which creates a read only memory BIO from
8410 an area of memory. Also modified the PKCS#7 routines to use read only
8414 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8415 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8416 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8417 but a retry condition occured while trying to read the rest.
8420 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8421 NID_pkcs7_encrypted by default: this was wrong since this should almost
8422 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8423 the encrypted data type: this is a more sensible place to put it and it
8424 allows the PKCS#12 code to be tidied up that duplicated this
8428 *) Changed obj_dat.pl script so it takes its input and output files on
8429 the command line. This should avoid shell escape redirection problems
8433 *) Initial support for certificate extension requests, these are included
8434 in things like Xenroll certificate requests. Included functions to allow
8435 extensions to be obtained and added.
8438 *) -crlf option to s_client and s_server for sending newlines as
8439 CRLF (as required by many protocols).
8442 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8444 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8445 [Ralf S. Engelschall]
8447 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8448 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8450 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8454 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8455 DH parameters/keys (q is lost during that conversion, but the resulting
8456 DH parameters contain its length).
8458 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8459 much faster than DH_generate_parameters (which creates parameters
8460 where p = 2*q + 1), and also the smaller q makes DH computations
8461 much more efficient (160-bit exponentiation instead of 1024-bit
8462 exponentiation); so this provides a convenient way to support DHE
8463 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8464 utter importance to use
8465 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8467 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8468 when such DH parameters are used, because otherwise small subgroup
8469 attacks may become possible!
8472 *) Avoid memory leak in i2d_DHparams.
8475 *) Allow the -k option to be used more than once in the enc program:
8476 this allows the same encrypted message to be read by multiple recipients.
8479 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8480 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8481 it will always use the numerical form of the OID, even if it has a short
8485 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8486 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8487 otherwise bn_mod_exp was called. In the case of hardware keys for example
8488 no private key components need be present and it might store extra data
8489 in the RSA structure, which cannot be accessed from bn_mod_exp.
8490 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8491 private key operations.
8494 *) Added support for SPARC Linux.
8497 *) pem_password_cb function type incompatibly changed from
8498 typedef int pem_password_cb(char *buf, int size, int rwflag);
8500 ....(char *buf, int size, int rwflag, void *userdata);
8501 so that applications can pass data to their callbacks:
8502 The PEM[_ASN1]_{read,write}... functions and macros now take an
8503 additional void * argument, which is just handed through whenever
8504 the password callback is called.
8505 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8507 New function SSL_CTX_set_default_passwd_cb_userdata.
8509 Compatibility note: As many C implementations push function arguments
8510 onto the stack in reverse order, the new library version is likely to
8511 interoperate with programs that have been compiled with the old
8512 pem_password_cb definition (PEM_whatever takes some data that
8513 happens to be on the stack as its last argument, and the callback
8514 just ignores this garbage); but there is no guarantee whatsoever that
8517 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8518 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8519 problems not only on Windows, but also on some Unix platforms.
8520 To avoid problematic command lines, these definitions are now in an
8521 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8522 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8525 *) MIPS III/IV assembler module is reimplemented.
8528 *) More DES library cleanups: remove references to srand/rand and
8529 delete an unused file.
8532 *) Add support for the the free Netwide assembler (NASM) under Win32,
8533 since not many people have MASM (ml) and it can be hard to obtain.
8534 This is currently experimental but it seems to work OK and pass all
8535 the tests. Check out INSTALL.W32 for info.
8538 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8539 without temporary keys kept an extra copy of the server key,
8540 and connections with temporary keys did not free everything in case
8544 *) New function RSA_check_key and new openssl rsa option -check
8545 for verifying the consistency of RSA keys.
8546 [Ulf Moeller, Bodo Moeller]
8548 *) Various changes to make Win32 compile work:
8549 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8550 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8551 comparison" warnings.
8552 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8555 *) Add a debugging option to PKCS#5 v2 key generation function: when
8556 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8557 derived keys are printed to stderr.
8560 *) Copy the flags in ASN1_STRING_dup().
8561 [Roman E. Pavlov <pre@mo.msk.ru>]
8563 *) The x509 application mishandled signing requests containing DSA
8564 keys when the signing key was also DSA and the parameters didn't match.
8566 It was supposed to omit the parameters when they matched the signing key:
8567 the verifying software was then supposed to automatically use the CA's
8568 parameters if they were absent from the end user certificate.
8570 Omitting parameters is no longer recommended. The test was also
8571 the wrong way round! This was probably due to unusual behaviour in
8572 EVP_cmp_parameters() which returns 1 if the parameters match.
8573 This meant that parameters were omitted when they *didn't* match and
8574 the certificate was useless. Certificates signed with 'ca' didn't have
8576 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8578 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8579 The interface is as follows:
8580 Applications can use
8581 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8582 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8583 "off" is now the default.
8584 The library internally uses
8585 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8586 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8587 to disable memory-checking temporarily.
8589 Some inconsistent states that previously were possible (and were
8590 even the default) are now avoided.
8592 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8593 with each memory chunk allocated; this is occasionally more helpful
8594 than just having a counter.
8596 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8598 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8602 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8603 which largely parallels "options", but is for changing API behaviour,
8604 whereas "options" are about protocol behaviour.
8605 Initial "mode" flags are:
8607 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8608 a single record has been written.
8609 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8610 retries use the same buffer location.
8611 (But all of the contents must be
8615 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8618 *) Fix problems with no-hmac etc.
8619 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8621 *) New functions RSA_get_default_method(), RSA_set_method() and
8622 RSA_get_method(). These allows replacement of RSA_METHODs without having
8623 to mess around with the internals of an RSA structure.
8626 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8627 Also really enable memory leak checks in openssl.c and in some
8629 [Chad C. Mulligan, Bodo Moeller]
8631 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8632 up the length of negative integers. This has now been simplified to just
8633 store the length when it is first determined and use it later, rather
8634 than trying to keep track of where data is copied and updating it to
8636 [Steve Henson, reported by Brien Wheeler
8637 <bwheeler@authentica-security.com>]
8639 *) Add a new function PKCS7_signatureVerify. This allows the verification
8640 of a PKCS#7 signature but with the signing certificate passed to the
8641 function itself. This contrasts with PKCS7_dataVerify which assumes the
8642 certificate is present in the PKCS#7 structure. This isn't always the
8643 case: certificates can be omitted from a PKCS#7 structure and be
8644 distributed by "out of band" means (such as a certificate database).
8647 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8648 function prototypes in pem.h, also change util/mkdef.pl to add the
8649 necessary function names.
8652 *) mk1mf.pl (used by Windows builds) did not properly read the
8653 options set by Configure in the top level Makefile, and Configure
8654 was not even able to write more than one option correctly.
8655 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8658 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8659 file to be loaded from a BIO or FILE pointer. The BIO version will
8660 for example allow memory BIOs to contain config info.
8663 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8664 Whoever hopes to achieve shared-library compatibility across versions
8665 must use this, not the compile-time macro.
8666 (Exercise 0.9.4: Which is the minimum library version required by
8668 Note: All this applies only to multi-threaded programs, others don't
8672 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8673 through a BIO pair triggered the default case, i.e.
8674 SSLerr(...,SSL_R_UNKNOWN_STATE).
8677 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8678 can use the SSL library even if none of the specific BIOs is
8682 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8683 for the encoded length.
8684 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8686 *) Add initial documentation of the X509V3 functions.
8689 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8690 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8691 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8692 secure PKCS#8 private key format with a high iteration count.
8695 *) Fix determination of Perl interpreter: A perl or perl5
8696 _directory_ in $PATH was also accepted as the interpreter.
8697 [Ralf S. Engelschall]
8699 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8700 wrong with it but it was very old and did things like calling
8701 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8705 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8706 to use the new extension code.
8709 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8710 with macros. This should make it easier to change their form, add extra
8711 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8715 *) Add to configuration table a new entry that can specify an alternative
8716 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8717 according to Mark Crispin <MRC@Panda.COM>.
8721 *) DES CBC did not update the IV. Weird.
8724 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8725 Changing the behaviour of the former might break existing programs --
8726 where IV updating is needed, des_ncbc_encrypt can be used.
8729 *) When bntest is run from "make test" it drives bc to check its
8730 calculations, as well as internally checking them. If an internal check
8731 fails, it needs to cause bc to give a non-zero result or make test carries
8732 on without noticing the failure. Fixed.
8735 *) DES library cleanups.
8738 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8739 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8740 ciphers. NOTE: although the key derivation function has been verified
8741 against some published test vectors it has not been extensively tested
8742 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8746 *) Instead of "mkdir -p", which is not fully portable, use new
8747 Perl script "util/mkdir-p.pl".
8750 *) Rewrite the way password based encryption (PBE) is handled. It used to
8751 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8752 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8753 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8754 the 'parameter' field of the AlgorithmIdentifier is passed to the
8755 underlying key generation function so it must do its own ASN1 parsing.
8756 This has also changed the EVP_PBE_CipherInit() function which now has a
8757 'parameter' argument instead of literal salt and iteration count values
8758 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8761 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8762 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8763 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8764 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8765 value was just used as a "magic string" and not used directly its
8766 value doesn't matter.
8769 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8773 *) "linux-sparc64" configuration (ultrapenguin).
8774 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8775 "linux-sparc" configuration.
8776 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8778 *) config now generates no-xxx options for missing ciphers.
8781 *) Support the EBCDIC character set (work in progress).
8782 File ebcdic.c not yet included because it has a different license.
8783 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8785 *) Support BS2000/OSD-POSIX.
8786 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8788 *) Make callbacks for key generation use void * instead of char *.
8791 *) Make S/MIME samples compile (not yet tested).
8794 *) Additional typesafe stacks.
8797 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8801 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8803 *) New configuration variant "sco5-gcc".
8805 *) Updated some demos.
8806 [Sean O Riordain, Wade Scholine]
8808 *) Add missing BIO_free at exit of pkcs12 application.
8811 *) Fix memory leak in conf.c.
8814 *) Updates for Win32 to assembler version of MD5.
8817 *) Set #! path to perl in apps/der_chop to where we found it
8818 instead of using a fixed path.
8821 *) SHA library changes for irix64-mips4-cc.
8824 *) Improvements for VMS support.
8828 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8830 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8831 This also avoids the problems with SC4.2 and unpatched SC5.
8832 [Andy Polyakov <appro@fy.chalmers.se>]
8834 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8835 These are required because of the typesafe stack would otherwise break
8836 existing code. If old code used a structure member which used to be STACK
8837 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8838 sk_num or sk_value it would produce an error because the num, data members
8839 are not present in STACK_OF. Now it just produces a warning. sk_set
8840 replaces the old method of assigning a value to sk_value
8841 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8842 that does this will no longer work (and should use sk_set instead) but
8843 this could be regarded as a "questionable" behaviour anyway.
8846 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8847 correctly handle encrypted S/MIME data.
8850 *) Change type of various DES function arguments from des_cblock
8851 (which means, in function argument declarations, pointer to char)
8852 to des_cblock * (meaning pointer to array with 8 char elements),
8853 which allows the compiler to do more typechecking; it was like
8854 that back in SSLeay, but with lots of ugly casts.
8856 Introduce new type const_des_cblock.
8859 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8860 problems: find RecipientInfo structure that matches recipient certificate
8861 and initialise the ASN1 structures properly based on passed cipher.
8864 *) Belatedly make the BN tests actually check the results.
8867 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8868 to and from BNs: it was completely broken. New compilation option
8869 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8870 key elements as negative integers.
8873 *) Reorganize and speed up MD5.
8874 [Andy Polyakov <appro@fy.chalmers.se>]
8877 [Richard Levitte <richard@levitte.org>]
8879 *) New option -out to asn1parse to allow the parsed structure to be
8880 output to a file. This is most useful when combined with the -strparse
8881 option to examine the output of things like OCTET STRINGS.
8884 *) Make SSL library a little more fool-proof by not requiring any longer
8885 that SSL_set_{accept,connect}_state be called before
8886 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8887 in many applications because usually everything *appeared* to work as
8888 intended anyway -- now it really works as intended).
8891 *) Move openssl.cnf out of lib/.
8894 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8895 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8896 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8897 [Ralf S. Engelschall]
8899 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8900 handle PKCS#7 enveloped data properly.
8901 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8903 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8904 copying pointers. The cert_st handling is changed by this in
8905 various ways (and thus what used to be known as ctx->default_cert
8906 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8907 any longer when s->cert does not give us what we need).
8908 ssl_cert_instantiate becomes obsolete by this change.
8909 As soon as we've got the new code right (possibly it already is?),
8910 we have solved a couple of bugs of the earlier code where s->cert
8911 was used as if it could not have been shared with other SSL structures.
8913 Note that using the SSL API in certain dirty ways now will result
8914 in different behaviour than observed with earlier library versions:
8915 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8916 does not influence s as it used to.
8918 In order to clean up things more thoroughly, inside SSL_SESSION
8919 we don't use CERT any longer, but a new structure SESS_CERT
8920 that holds per-session data (if available); currently, this is
8921 the peer's certificate chain and, for clients, the server's certificate
8922 and temporary key. CERT holds only those values that can have
8923 meaningful defaults in an SSL_CTX.
8926 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8927 from the internal representation. Various PKCS#7 fixes: remove some
8928 evil casts and set the enc_dig_alg field properly based on the signing
8932 *) Allow PKCS#12 password to be set from the command line or the
8933 environment. Let 'ca' get its config file name from the environment
8934 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8938 *) Allow certificate policies extension to use an IA5STRING for the
8939 organization field. This is contrary to the PKIX definition but
8940 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8944 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8945 without disallowing inline assembler and the like for non-pedantic builds.
8948 *) Support Borland C++ builder.
8949 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8954 *) SHA-1 cleanups and performance enhancements.
8955 [Andy Polyakov <appro@fy.chalmers.se>]
8957 *) Sparc v8plus assembler for the bignum library.
8958 [Andy Polyakov <appro@fy.chalmers.se>]
8960 *) Accept any -xxx and +xxx compiler options in Configure.
8963 *) Update HPUX configuration.
8966 *) Add missing sk_<type>_unshift() function to safestack.h
8967 [Ralf S. Engelschall]
8969 *) New function SSL_CTX_use_certificate_chain_file that sets the
8970 "extra_cert"s in addition to the certificate. (This makes sense
8971 only for "PEM" format files, as chains as a whole are not
8975 *) Support verify_depth from the SSL API.
8976 x509_vfy.c had what can be considered an off-by-one-error:
8977 Its depth (which was not part of the external interface)
8978 was actually counting the number of certificates in a chain;
8979 now it really counts the depth.
8982 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8983 instead of X509err, which often resulted in confusing error
8984 messages since the error codes are not globally unique
8985 (e.g. an alleged error in ssl3_accept when a certificate
8986 didn't match the private key).
8988 *) New function SSL_CTX_set_session_id_context that allows to set a default
8989 value (so that you don't need SSL_set_session_id_context for each
8990 connection using the SSL_CTX).
8993 *) OAEP decoding bug fix.
8996 *) Support INSTALL_PREFIX for package builders, as proposed by
9000 *) New Configure options "threads" and "no-threads". For systems
9001 where the proper compiler options are known (currently Solaris
9002 and Linux), "threads" is the default.
9005 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9008 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9009 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9010 such as /usr/local/bin.
9013 *) "make linux-shared" to build shared libraries.
9014 [Niels Poppe <niels@netbox.org>]
9016 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9019 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9020 extension adding in x509 utility.
9023 *) Remove NOPROTO sections and error code comments.
9026 *) Partial rewrite of the DEF file generator to now parse the ANSI
9030 *) New Configure options --prefix=DIR and --openssldir=DIR.
9033 *) Complete rewrite of the error code script(s). It is all now handled
9034 by one script at the top level which handles error code gathering,
9035 header rewriting and C source file generation. It should be much better
9036 than the old method: it now uses a modified version of Ulf's parser to
9037 read the ANSI prototypes in all header files (thus the old K&R definitions
9038 aren't needed for error creation any more) and do a better job of
9039 translating function codes into names. The old 'ASN1 error code imbedded
9040 in a comment' is no longer necessary and it doesn't use .err files which
9041 have now been deleted. Also the error code call doesn't have to appear all
9042 on one line (which resulted in some large lines...).
9045 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9048 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9049 0 (which usually indicates a closed connection), but continue reading.
9052 *) Fix some race conditions.
9055 *) Add support for CRL distribution points extension. Add Certificate
9056 Policies and CRL distribution points documentation.
9059 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9062 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9063 8 of keying material. Merlin has also confirmed interop with this fix
9064 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9065 [Merlin Hughes <merlin@baltimore.ie>]
9067 *) Fix lots of warnings.
9068 [Richard Levitte <levitte@stacken.kth.se>]
9070 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9071 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9072 [Richard Levitte <levitte@stacken.kth.se>]
9074 *) Fix problems with sizeof(long) == 8.
9075 [Andy Polyakov <appro@fy.chalmers.se>]
9077 *) Change functions to ANSI C.
9080 *) Fix typos in error codes.
9081 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9083 *) Remove defunct assembler files from Configure.
9086 *) SPARC v8 assembler BIGNUM implementation.
9087 [Andy Polyakov <appro@fy.chalmers.se>]
9089 *) Support for Certificate Policies extension: both print and set.
9090 Various additions to support the r2i method this uses.
9093 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9094 return a const string when you are expecting an allocated buffer.
9097 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9098 types DirectoryString and DisplayText.
9101 *) Add code to allow r2i extensions to access the configuration database,
9102 add an LHASH database driver and add several ctx helper functions.
9105 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9106 fail when they extended the size of a BIGNUM.
9109 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9110 support typesafe stack.
9113 *) Fix typo in SSL_[gs]et_options().
9114 [Nils Frostberg <nils@medcom.se>]
9116 *) Delete various functions and files that belonged to the (now obsolete)
9117 old X509V3 handling code.
9120 *) New Configure option "rsaref".
9123 *) Don't auto-generate pem.h.
9126 *) Introduce type-safe ASN.1 SETs.
9129 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9130 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9132 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9133 that links with OpenSSL (well at least cause lots of warnings), but fear
9134 not: the conversion is trivial, and it eliminates loads of evil casts. A
9135 few STACKed things have been converted already. Feel free to convert more.
9136 In the fullness of time, I'll do away with the STACK type altogether.
9139 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9140 specified in <certfile> by updating the entry in the index.txt file.
9141 This way one no longer has to edit the index.txt file manually for
9142 revoking a certificate. The -revoke option does the gory details now.
9143 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9145 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9146 `-text' option at all and this way the `-noout -text' combination was
9147 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9148 [Ralf S. Engelschall]
9150 *) Make sure a corresponding plain text error message exists for the
9151 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9152 verify callback function determined that a certificate was revoked.
9153 [Ralf S. Engelschall]
9155 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9156 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9157 all available cipers including rc5, which was forgotten until now.
9158 In order to let the testing shell script know which algorithms
9159 are available, a new (up to now undocumented) command
9160 "openssl list-cipher-commands" is used.
9163 *) Bugfix: s_client occasionally would sleep in select() when
9164 it should have checked SSL_pending() first.
9167 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9168 the raw DSA values prior to ASN.1 encoding.
9171 *) Tweaks to Configure
9172 [Niels Poppe <niels@netbox.org>]
9174 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9178 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9181 *) New config option to avoid instructions that are illegal on the 80386.
9182 The default code is faster, but requires at least a 486.
9185 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9186 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9187 same as SSL2_VERSION anyway.
9190 *) New "-showcerts" option for s_client.
9193 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9194 application. Various cleanups and fixes.
9197 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9198 modify error routines to work internally. Add error codes and PBE init
9199 to library startup routines.
9202 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9203 packing functions to asn1 and evp. Changed function names and error
9204 codes along the way.
9207 *) PKCS12 integration: and so it begins... First of several patches to
9208 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9209 objects to objects.h
9212 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9213 and display support for Thawte strong extranet extension.
9216 *) Add LinuxPPC support.
9217 [Jeff Dubrule <igor@pobox.org>]
9219 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9220 bn_div_words in alpha.s.
9221 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9223 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9224 OAEP isn't supported when OpenSSL is built with RSAref.
9225 [Ulf Moeller <ulf@fitug.de>]
9227 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9228 so they no longer are missing under -DNOPROTO.
9229 [Soren S. Jorvang <soren@t.dk>]
9232 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9234 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9235 doesn't work when the session is reused. Coming soon!
9238 *) Fix a security hole, that allows sessions to be reused in the wrong
9239 context thus bypassing client cert protection! All software that uses
9240 client certs and session caches in multiple contexts NEEDS PATCHING to
9241 allow session reuse! A fuller solution is in the works.
9242 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9244 *) Some more source tree cleanups (removed obsolete files
9245 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9246 permission on "config" script to be executable) and a fix for the INSTALL
9248 [Ulf Moeller <ulf@fitug.de>]
9250 *) Remove some legacy and erroneous uses of malloc, free instead of
9252 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9254 *) Make rsa_oaep_test return non-zero on error.
9255 [Ulf Moeller <ulf@fitug.de>]
9257 *) Add support for native Solaris shared libraries. Configure
9258 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9259 if someone would make that last step automatic.
9260 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9262 *) ctx_size was not built with the right compiler during "make links". Fixed.
9265 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9266 except NULL ciphers". This means the default cipher list will no longer
9267 enable NULL ciphers. They need to be specifically enabled e.g. with
9268 the string "DEFAULT:eNULL".
9271 *) Fix to RSA private encryption routines: if p < q then it would
9272 occasionally produce an invalid result. This will only happen with
9273 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9276 *) Be less restrictive and allow also `perl util/perlpath.pl
9277 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9278 because this way one can also use an interpreter named `perl5' (which is
9279 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9280 installed as `perl').
9281 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9283 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9284 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9286 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9287 advapi32.lib to Win32 build and change the pem test comparision
9288 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9289 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9290 and crypto/des/ede_cbcm_enc.c.
9293 *) DES quad checksum was broken on big-endian architectures. Fixed.
9296 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9297 Win32 test batch file so it (might) work again. The Win32 test batch file
9298 is horrible: I feel ill....
9301 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9302 in e_os.h. Audit of header files to check ANSI and non ANSI
9303 sections: 10 functions were absent from non ANSI section and not exported
9304 from Windows DLLs. Fixed up libeay.num for new functions.
9307 *) Make `openssl version' output lines consistent.
9308 [Ralf S. Engelschall]
9310 *) Fix Win32 symbol export lists for BIO functions: Added
9311 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9312 to ms/libeay{16,32}.def.
9313 [Ralf S. Engelschall]
9315 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9316 fine under Unix and passes some trivial tests I've now added. But the
9317 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9318 added to make sure no one expects that this stuff really works in the
9319 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9320 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9322 [Ralf S. Engelschall]
9324 *) Fix the generation of two part addresses in perl.
9325 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9327 *) Add config entry for Linux on MIPS.
9328 [John Tobey <jtobey@channel1.com>]
9330 *) Make links whenever Configure is run, unless we are on Windoze.
9333 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9334 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9338 *) Add a useful kludge to allow package maintainers to specify compiler and
9339 other platforms details on the command line without having to patch the
9340 Configure script everytime: One now can use ``perl Configure
9341 <id>:<details>'', i.e. platform ids are allowed to have details appended
9342 to them (seperated by colons). This is treated as there would be a static
9343 pre-configured entry in Configure's %table under key <id> with value
9344 <details> and ``perl Configure <id>'' is called. So, when you want to
9345 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9346 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9347 now, which overrides the FreeBSD-elf entry on-the-fly.
9348 [Ralf S. Engelschall]
9350 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9353 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9354 on the `perl Configure ...' command line. This way one can compile
9355 OpenSSL libraries with Position Independent Code (PIC) which is needed
9356 for linking it into DSOs.
9357 [Ralf S. Engelschall]
9359 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9363 *) Cleaned up the LICENSE document: The official contact for any license
9364 questions now is the OpenSSL core team under openssl-core@openssl.org.
9365 And add a paragraph about the dual-license situation to make sure people
9366 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9367 to the OpenSSL toolkit.
9368 [Ralf S. Engelschall]
9370 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9371 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9372 Additonally cleaned up the `make links' target: Remove unnecessary
9373 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9374 to speed processing and no longer clutter the display with confusing
9375 stuff. Instead only the actually done links are displayed.
9376 [Ralf S. Engelschall]
9378 *) Permit null encryption ciphersuites, used for authentication only. It used
9379 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9380 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9384 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9385 signed attributes when verifying signatures (this would break them),
9386 the detached data encoding was wrong and public keys obtained using
9387 X509_get_pubkey() weren't freed.
9390 *) Add text documentation for the BUFFER functions. Also added a work around
9391 to a Win95 console bug. This was triggered by the password read stuff: the
9392 last character typed gets carried over to the next fread(). If you were
9393 generating a new cert request using 'req' for example then the last
9394 character of the passphrase would be CR which would then enter the first
9398 *) Added the new `Includes OpenSSL Cryptography Software' button as
9399 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9400 button and can be used by applications based on OpenSSL to show the
9401 relationship to the OpenSSL project.
9402 [Ralf S. Engelschall]
9404 *) Remove confusing variables in function signatures in files
9405 ssl/ssl_lib.c and ssl/ssl.h.
9406 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9408 *) Don't install bss_file.c under PREFIX/include/
9409 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9411 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9412 functions that return function pointers and has support for NT specific
9413 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9414 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9415 unsigned to signed types: this was killing the Win32 compile.
9418 *) Add new certificate file to stack functions,
9419 SSL_add_dir_cert_subjects_to_stack() and
9420 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9421 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9422 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9423 This means that Apache-SSL and similar packages don't have to mess around
9424 to add as many CAs as they want to the preferred list.
9427 *) Experiment with doxygen documentation. Currently only partially applied to
9429 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9430 openssl.doxy as the configuration file.
9433 *) Get rid of remaining C++-style comments which strict C compilers hate.
9434 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9436 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9437 compiled in by default: it has problems with large keys.
9440 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9441 DH private keys and/or callback functions which directly correspond to
9442 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9443 is needed for applications which have to configure certificates on a
9444 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9446 For the RSA certificate situation is makes no difference, but
9447 for the DSA certificate situation this fixes the "no shared cipher"
9448 problem where the OpenSSL cipher selection procedure failed because the
9449 temporary keys were not overtaken from the context and the API provided
9450 no way to reconfigure them.
9451 The new functions now let applications reconfigure the stuff and they
9452 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9453 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9454 non-public-API function ssl_cert_instantiate() is used as a helper
9455 function and also to reduce code redundancy inside ssl_rsa.c.
9456 [Ralf S. Engelschall]
9458 *) Move s_server -dcert and -dkey options out of the undocumented feature
9459 area because they are useful for the DSA situation and should be
9460 recognized by the users.
9461 [Ralf S. Engelschall]
9463 *) Fix the cipher decision scheme for export ciphers: the export bits are
9464 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9465 SSL_EXP_MASK. So, the original variable has to be used instead of the
9466 already masked variable.
9467 [Richard Levitte <levitte@stacken.kth.se>]
9469 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9470 [Richard Levitte <levitte@stacken.kth.se>]
9472 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9473 from `int' to `unsigned int' because it's a length and initialized by
9474 EVP_DigestFinal() which expects an `unsigned int *'.
9475 [Richard Levitte <levitte@stacken.kth.se>]
9477 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9478 script. Instead use the usual Shell->Perl transition trick.
9479 [Ralf S. Engelschall]
9481 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9482 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9483 -noout -modulus' as it's already the case for `openssl rsa -noout
9484 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9485 currently the public key is printed (a decision which was already done by
9486 `openssl dsa -modulus' in the past) which serves a similar purpose.
9487 Additionally the NO_RSA no longer completely removes the whole -modulus
9488 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9490 [Ralf S. Engelschall]
9492 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9493 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9494 [Arne Ansper <arne@ats.cyber.ee>]
9496 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9497 to be added. Now both 'req' and 'ca' can use new objects defined in the
9501 *) Add cool BIO that does syslog (or event log on NT).
9502 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9504 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9505 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9506 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9507 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9510 *) Add preliminary config info for new extension code.
9513 *) Make RSA_NO_PADDING really use no padding.
9514 [Ulf Moeller <ulf@fitug.de>]
9516 *) Generate errors when private/public key check is done.
9519 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9520 for some CRL extensions and new objects added.
9523 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9524 key usage extension and fuller support for authority key id.
9527 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9528 padding method for RSA, which is recommended for new applications in PKCS
9529 #1 v2.0 (RFC 2437, October 1998).
9530 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9531 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9532 against Bleichbacher's attack on RSA.
9533 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9536 *) Updates to the new SSL compression code
9537 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9539 *) Fix so that the version number in the master secret, when passed
9540 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9541 (because the server will not accept higher), that the version number
9542 is 0x03,0x01, not 0x03,0x00
9543 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9545 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9546 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9547 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9550 *) Support for RAW extensions where an arbitrary extension can be
9551 created by including its DER encoding. See apps/openssl.cnf for
9555 *) Make sure latest Perl versions don't interpret some generated C array
9556 code as Perl array code in the crypto/err/err_genc.pl script.
9557 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9559 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9560 not many people have the assembler. Various Win32 compilation fixes and
9561 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9565 *) Modify configure script 'Configure' to automatically create crypto/date.h
9566 file under Win32 and also build pem.h from pem.org. New script
9567 util/mkfiles.pl to create the MINFO file on environments that can't do a
9568 'make files': perl util/mkfiles.pl >MINFO should work.
9571 *) Major rework of DES function declarations, in the pursuit of correctness
9572 and purity. As a result, many evil casts evaporated, and some weirdness,
9573 too. You may find this causes warnings in your code. Zapping your evil
9574 casts will probably fix them. Mostly.
9577 *) Fix for a typo in asn1.h. Bug fix to object creation script
9578 obj_dat.pl. It considered a zero in an object definition to mean
9579 "end of object": none of the objects in objects.h have any zeros
9580 so it wasn't spotted.
9581 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9583 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9584 Masking (CBCM). In the absence of test vectors, the best I have been able
9585 to do is check that the decrypt undoes the encrypt, so far. Send me test
9586 vectors if you have them.
9589 *) Correct calculation of key length for export ciphers (too much space was
9590 allocated for null ciphers). This has not been tested!
9593 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9594 message is now correct (it understands "crypto" and "ssl" on its
9595 command line). There is also now an "update" option. This will update
9596 the util/ssleay.num and util/libeay.num files with any new functions.
9598 perl util/mkdef.pl crypto ssl update
9599 it will update them.
9602 *) Overhauled the Perl interface (perl/*):
9603 - ported BN stuff to OpenSSL's different BN library
9604 - made the perl/ source tree CVS-aware
9605 - renamed the package from SSLeay to OpenSSL (the files still contain
9606 their history because I've copied them in the repository)
9607 - removed obsolete files (the test scripts will be replaced
9608 by better Test::Harness variants in the future)
9609 [Ralf S. Engelschall]
9611 *) First cut for a very conservative source tree cleanup:
9612 1. merge various obsolete readme texts into doc/ssleay.txt
9613 where we collect the old documents and readme texts.
9614 2. remove the first part of files where I'm already sure that we no
9615 longer need them because of three reasons: either they are just temporary
9616 files which were left by Eric or they are preserved original files where
9617 I've verified that the diff is also available in the CVS via "cvs diff
9618 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9619 the crypto/md/ stuff).
9620 [Ralf S. Engelschall]
9622 *) More extension code. Incomplete support for subject and issuer alt
9623 name, issuer and authority key id. Change the i2v function parameters
9624 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9625 what that's for :-) Fix to ASN1 macro which messed up
9626 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9629 *) Preliminary support for ENUMERATED type. This is largely copied from the
9633 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9634 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9636 *) Make sure `make rehash' target really finds the `openssl' program.
9637 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9639 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9640 like to hear about it if this slows down other processors.
9643 *) Add CygWin32 platform information to Configure script.
9644 [Alan Batie <batie@aahz.jf.intel.com>]
9646 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9647 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9649 *) New program nseq to manipulate netscape certificate sequences
9652 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9656 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9657 but the BN code had some problems that would cause failures when
9658 doing certificate verification and some other functions.
9659 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9661 *) Add ASN1 and PEM code to support netscape certificate sequences.
9664 *) Add ASN1 and PEM code to support netscape certificate sequences.
9667 *) Add several PKIX and private extended key usage OIDs.
9670 *) Modify the 'ca' program to handle the new extension code. Modify
9671 openssl.cnf for new extension format, add comments.
9674 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9675 and add a sample to openssl.cnf so req -x509 now adds appropriate
9679 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9680 error code, add initial support to X509_print() and x509 application.
9683 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9684 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9685 stuff is currently isolated and isn't even compiled yet.
9688 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9689 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9690 Removed the versions check from X509 routines when loading extensions:
9691 this allows certain broken certificates that don't set the version
9692 properly to be processed.
9695 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9696 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9697 can still be regenerated with "make depend".
9700 *) Spelling mistake in C version of CAST-128.
9701 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9703 *) Changes to the error generation code. The perl script err-code.pl
9704 now reads in the old error codes and retains the old numbers, only
9705 adding new ones if necessary. It also only changes the .err files if new
9706 codes are added. The makefiles have been modified to only insert errors
9707 when needed (to avoid needlessly modifying header files). This is done
9708 by only inserting errors if the .err file is newer than the auto generated
9709 C file. To rebuild all the error codes from scratch (the old behaviour)
9710 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9711 or delete all the .err files.
9714 *) CAST-128 was incorrectly implemented for short keys. The C version has
9715 been fixed, but is untested. The assembler versions are also fixed, but
9716 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9717 to regenerate it if needed.
9718 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9719 Hagino <itojun@kame.net>]
9721 *) File was opened incorrectly in randfile.c.
9722 [Ulf Möller <ulf@fitug.de>]
9724 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9725 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9726 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9727 al: it's just almost always a UTCTime. Note this patch adds new error
9728 codes so do a "make errors" if there are problems.
9731 *) Correct Linux 1 recognition in config.
9732 [Ulf Möller <ulf@fitug.de>]
9734 *) Remove pointless MD5 hash when using DSA keys in ca.
9735 [Anonymous <nobody@replay.com>]
9737 *) Generate an error if given an empty string as a cert directory. Also
9738 generate an error if handed NULL (previously returned 0 to indicate an
9739 error, but didn't set one).
9740 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9742 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9745 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9746 parameters. This was causing a warning which killed off the Win32 compile.
9749 *) Remove C++ style comments from crypto/bn/bn_local.h.
9750 [Neil Costigan <neil.costigan@celocom.com>]
9752 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9753 based on a text string, looking up short and long names and finally
9754 "dot" format. The "dot" format stuff didn't work. Added new function
9755 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9756 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9757 OID is not part of the table.
9760 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9761 X509_LOOKUP_by_alias().
9764 *) Sort openssl functions by name.
9767 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9768 encryption from sample DSA keys (in case anyone is interested the password
9772 *) Make _all_ *_free functions accept a NULL pointer.
9773 [Frans Heymans <fheymans@isaserver.be>]
9775 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9777 [Anonymous <nobody@replay.com>]
9779 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9780 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9782 *) Don't blow it for numeric -newkey arguments to apps/req.
9783 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9785 *) Temp key "for export" tests were wrong in s3_srvr.c.
9786 [Anonymous <nobody@replay.com>]
9788 *) Add prototype for temp key callback functions
9789 SSL_CTX_set_tmp_{rsa,dh}_callback().
9792 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9793 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9796 *) X509_name_add_entry() freed the wrong thing after an error.
9797 [Arne Ansper <arne@ats.cyber.ee>]
9799 *) rsa_eay.c would attempt to free a NULL context.
9800 [Arne Ansper <arne@ats.cyber.ee>]
9802 *) BIO_s_socket() had a broken should_retry() on Windoze.
9803 [Arne Ansper <arne@ats.cyber.ee>]
9805 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9806 [Arne Ansper <arne@ats.cyber.ee>]
9808 *) Make sure the already existing X509_STORE->depth variable is initialized
9809 in X509_STORE_new(), but document the fact that this variable is still
9810 unused in the certificate verification process.
9811 [Ralf S. Engelschall]
9813 *) Fix the various library and apps files to free up pkeys obtained from
9814 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9817 *) Fix reference counting in X509_PUBKEY_get(). This makes
9818 demos/maurice/example2.c work, amongst others, probably.
9819 [Steve Henson and Ben Laurie]
9821 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9822 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9823 are no longer created. This way we have a single and consistent command
9824 line interface `openssl <command>', similar to `cvs <command>'.
9825 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9827 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9828 BIT STRING wrapper always have zero unused bits.
9831 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9834 *) Make the top-level INSTALL documentation easier to understand.
9837 *) Makefiles updated to exit if an error occurs in a sub-directory
9838 make (including if user presses ^C) [Paul Sutton]
9840 *) Make Montgomery context stuff explicit in RSA data structure.
9843 *) Fix build order of pem and err to allow for generated pem.h.
9846 *) Fix renumbering bug in X509_NAME_delete_entry().
9849 *) Enhanced the err-ins.pl script so it makes the error library number
9850 global and can add a library name. This is needed for external ASN1 and
9851 other error libraries.
9854 *) Fixed sk_insert which never worked properly.
9857 *) Fix ASN1 macros so they can handle indefinite length construted
9858 EXPLICIT tags. Some non standard certificates use these: they can now
9862 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9863 into a single doc/ssleay.txt bundle. This way the information is still
9864 preserved but no longer messes up this directory. Now it's new room for
9865 the new set of documenation files.
9866 [Ralf S. Engelschall]
9868 *) SETs were incorrectly DER encoded. This was a major pain, because they
9869 shared code with SEQUENCEs, which aren't coded the same. This means that
9870 almost everything to do with SETs or SEQUENCEs has either changed name or
9871 number of arguments.
9872 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9874 *) Fix test data to work with the above.
9877 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9878 was already fixed by Eric for 0.9.1 it seems.
9879 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9881 *) Autodetect FreeBSD3.
9884 *) Fix various bugs in Configure. This affects the following platforms:
9888 unixware-2.0-pentium
9892 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9893 before they are needed.
9896 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9900 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9902 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9903 changed SSLeay to OpenSSL in version strings.
9904 [Ralf S. Engelschall]
9906 *) Some fixups to the top-level documents.
9909 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9910 because the symlink to include/ was missing.
9911 [Ralf S. Engelschall]
9913 *) Incorporated the popular no-RSA/DSA-only patches
9914 which allow to compile a RSA-free SSLeay.
9915 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9917 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9918 when "ssleay" is still not found.
9919 [Ralf S. Engelschall]
9921 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9922 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9924 *) Updated the README file.
9925 [Ralf S. Engelschall]
9927 *) Added various .cvsignore files in the CVS repository subdirs
9928 to make a "cvs update" really silent.
9929 [Ralf S. Engelschall]
9931 *) Recompiled the error-definition header files and added
9932 missing symbols to the Win32 linker tables.
9933 [Ralf S. Engelschall]
9935 *) Cleaned up the top-level documents;
9936 o new files: CHANGES and LICENSE
9937 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9938 o merged COPYRIGHT into LICENSE
9939 o removed obsolete TODO file
9940 o renamed MICROSOFT to INSTALL.W32
9941 [Ralf S. Engelschall]
9943 *) Removed dummy files from the 0.9.1b source tree:
9944 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9945 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9946 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9947 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9948 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9949 [Ralf S. Engelschall]
9951 *) Added various platform portability fixes.
9954 *) The Genesis of the OpenSSL rpject:
9955 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9956 Young and Tim J. Hudson created while they were working for C2Net until
9958 [The OpenSSL Project]
9961 Changes between 0.9.0b and 0.9.1b [not released]
9963 *) Updated a few CA certificates under certs/
9966 *) Changed some BIGNUM api stuff.
9969 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9970 DGUX x86, Linux Alpha, etc.
9973 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9974 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9978 *) Add -strparse option to asn1pars program which parses nested
9980 [Dr Stephen Henson <shenson@bigfoot.com>]
9982 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9985 *) DSA fix for "ca" program.
9988 *) Added "-genkey" option to "dsaparam" program.
9991 *) Added RIPE MD160 (rmd160) message digest.
9994 *) Added -a (all) option to "ssleay version" command.
9997 *) Added PLATFORM define which is the id given to Configure.
10000 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10003 *) Extended the ASN.1 parser routines.
10006 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10009 *) Added a BN_CTX to the BN library.
10012 *) Fixed the weak key values in DES library
10015 *) Changed API in EVP library for cipher aliases.
10018 *) Added support for RC2/64bit cipher.
10021 *) Converted the lhash library to the crypto/mem.c functions.
10024 *) Added more recognized ASN.1 object ids.
10027 *) Added more RSA padding checks for SSL/TLS.
10030 *) Added BIO proxy/filter functionality.
10033 *) Added extra_certs to SSL_CTX which can be used
10034 send extra CA certificates to the client in the CA cert chain sending
10035 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10038 *) Now Fortezza is denied in the authentication phase because
10039 this is key exchange mechanism is not supported by SSLeay at all.
10042 *) Additional PKCS1 checks.
10045 *) Support the string "TLSv1" for all TLS v1 ciphers.
10048 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10049 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10052 *) Fixed a few memory leaks.
10055 *) Fixed various code and comment typos.
10058 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10059 bytes sent in the client random.
10060 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob