5 Changes between 1.0.1c and 1.0.1d [xx XXX xxxx]
7 *) Make openssl verify return errors.
8 [Chris Palmer <palmer@google.com> and Ben Laurie]
10 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
11 the right response is stapled. Also change SSL_get_certificate()
12 so it returns the certificate actually sent.
13 See http://rt.openssl.org/Ticket/Display.html?id=2836.
14 [Rob Stradling <rob.stradling@comodo.com>]
16 *) Fix possible deadlock when decoding public keys.
19 *) Don't use TLS 1.0 record version number in initial client hello
23 Changes between 1.0.1b and 1.0.1c [10 May 2012]
25 *) Sanity check record length before skipping explicit IV in TLS
26 1.2, 1.1 and DTLS to fix DoS attack.
28 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
29 fuzzing as a service testing platform.
33 *) Initialise tkeylen properly when encrypting CMS messages.
34 Thanks to Solar Designer of Openwall for reporting this issue.
37 *) In FIPS mode don't try to use composite ciphers as they are not
41 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
43 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
44 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
45 mean any application compiled against OpenSSL 1.0.0 headers setting
46 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
47 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
48 0x10000000L Any application which was previously compiled against
49 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
50 will need to be recompiled as a result. Letting be results in
51 inability to disable specifically TLS 1.1 and in client context,
52 in unlike event, limit maximum offered version to TLS 1.0 [see below].
55 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
56 disable just protocol X, but all protocols above X *if* there are
57 protocols *below* X still enabled. In more practical terms it means
58 that if application wants to disable TLS1.0 in favor of TLS1.1 and
59 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
60 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
64 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
66 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
67 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
68 in CRYPTO_realloc_clean.
70 Thanks to Tavis Ormandy, Google Security Team, for discovering this
71 issue and to Adam Langley <agl@chromium.org> for fixing it.
73 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
75 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
78 *) Workarounds for some broken servers that "hang" if a client hello
79 record length exceeds 255 bytes.
81 1. Do not use record version number > TLS 1.0 in initial client
82 hello: some (but not all) hanging servers will now work.
83 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
84 the number of ciphers sent in the client hello. This should be
85 set to an even number, such as 50, for example by passing:
86 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
87 Most broken servers should now work.
88 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
89 TLS 1.2 client support entirely.
92 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
95 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
97 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
98 STRING form instead of a DigestInfo.
101 *) The format used for MDC2 RSA signatures is inconsistent between EVP
102 and the RSA_sign/RSA_verify functions. This was made more apparent when
103 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
104 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
105 the correct format in RSA_verify so both forms transparently work.
108 *) Some servers which support TLS 1.0 can choke if we initially indicate
109 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
110 encrypted premaster secret. As a workaround use the maximum pemitted
111 client version in client hello, this should keep such servers happy
112 and still work with previous versions of OpenSSL.
115 *) Add support for TLS/DTLS heartbeats.
116 [Robin Seggelmann <seggelmann@fh-muenster.de>]
118 *) Add support for SCTP.
119 [Robin Seggelmann <seggelmann@fh-muenster.de>]
121 *) Improved PRNG seeding for VOS.
122 [Paul Green <Paul.Green@stratus.com>]
124 *) Extensive assembler packs updates, most notably:
126 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
127 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
128 - x86_64: bit-sliced AES implementation;
129 - ARM: NEON support, contemporary platforms optimizations;
130 - s390x: z196 support;
131 - *: GHASH and GF(2^m) multiplication implementations;
135 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
136 (removal of unnecessary code)
137 [Peter Sylvester <peter.sylvester@edelweb.fr>]
139 *) Add TLS key material exporter from RFC 5705.
142 *) Add DTLS-SRTP negotiation from RFC 5764.
145 *) Add Next Protocol Negotiation,
146 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
147 disabled with a no-npn flag to config or Configure. Code donated
149 [Adam Langley <agl@google.com> and Ben Laurie]
151 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
152 NIST-P256, NIST-P521, with constant-time single point multiplication on
153 typical inputs. Compiler support for the nonstandard type __uint128_t is
154 required to use this (present in gcc 4.4 and later, for 64-bit builds).
155 Code made available under Apache License version 2.0.
157 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
158 line to include this in your build of OpenSSL, and run "make depend" (or
159 "make update"). This enables the following EC_METHODs:
161 EC_GFp_nistp224_method()
162 EC_GFp_nistp256_method()
163 EC_GFp_nistp521_method()
165 EC_GROUP_new_by_curve_name() will automatically use these (while
166 EC_GROUP_new_curve_GFp() currently prefers the more flexible
168 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
170 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
171 all platforms. Move ssize_t definition from e_os.h to the public
172 header file e_os2.h as it now appears in public header file cms.h
175 *) New -sigopt option to the ca, req and x509 utilities. Additional
176 signature parameters can be passed using this option and in
180 *) Add RSA PSS signing function. This will generate and set the
181 appropriate AlgorithmIdentifiers for PSS based on those in the
182 corresponding EVP_MD_CTX structure. No application support yet.
185 *) Support for companion algorithm specific ASN1 signing routines.
186 New function ASN1_item_sign_ctx() signs a pre-initialised
187 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
188 the appropriate parameters.
191 *) Add new algorithm specific ASN1 verification initialisation function
192 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
193 handling will be the same no matter what EVP_PKEY_METHOD is used.
194 Add a PSS handler to support verification of PSS signatures: checked
195 against a number of sample certificates.
198 *) Add signature printing for PSS. Add PSS OIDs.
199 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
201 *) Add algorithm specific signature printing. An individual ASN1 method
202 can now print out signatures instead of the standard hex dump.
204 More complex signatures (e.g. PSS) can print out more meaningful
205 information. Include DSA version that prints out the signature
209 *) Password based recipient info support for CMS library: implementing
213 *) Split password based encryption into PBES2 and PBKDF2 functions. This
214 neatly separates the code into cipher and PBE sections and is required
215 for some algorithms that split PBES2 into separate pieces (such as
219 *) Session-handling fixes:
220 - Fix handling of connections that are resuming with a session ID,
221 but also support Session Tickets.
222 - Fix a bug that suppressed issuing of a new ticket if the client
223 presented a ticket with an expired session.
224 - Try to set the ticket lifetime hint to something reasonable.
225 - Make tickets shorter by excluding irrelevant information.
226 - On the client side, don't ignore renewed tickets.
227 [Adam Langley, Bodo Moeller (Google)]
229 *) Fix PSK session representation.
232 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
234 This work was sponsored by Intel.
237 *) Add GCM support to TLS library. Some custom code is needed to split
238 the IV between the fixed (from PRF) and explicit (from TLS record)
239 portions. This adds all GCM ciphersuites supported by RFC5288 and
240 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
241 add a special AESGCM string for GCM only.
244 *) Expand range of ctrls for AES GCM. Permit setting invocation
245 field on decrypt and retrieval of invocation field only on encrypt.
248 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
249 As required by RFC5289 these ciphersuites cannot be used if for
250 versions of TLS earlier than 1.2.
253 *) For FIPS capable OpenSSL interpret a NULL default public key method
254 as unset and return the appopriate default but do *not* set the default.
255 This means we can return the appopriate method in applications that
256 swicth between FIPS and non-FIPS modes.
259 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
260 ENGINE is used then we cannot handle that in the FIPS module so we
261 keep original code iff non-FIPS operations are allowed.
264 *) Add -attime option to openssl utilities.
265 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
267 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
270 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
271 FIPS EC methods unconditionally for now.
274 *) New build option no-ec2m to disable characteristic 2 code.
277 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
278 all cases can be covered as some introduce binary incompatibilities.
281 *) Redirect RSA operations to FIPS module including keygen,
282 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
285 *) Add similar low level API blocking to ciphers.
288 *) Low level digest APIs are not approved in FIPS mode: any attempt
289 to use these will cause a fatal error. Applications that *really* want
290 to use them can use the private_* version instead.
293 *) Redirect cipher operations to FIPS module for FIPS builds.
296 *) Redirect digest operations to FIPS module for FIPS builds.
299 *) Update build system to add "fips" flag which will link in fipscanister.o
300 for static and shared library builds embedding a signature if needed.
303 *) Output TLS supported curves in preference order instead of numerical
304 order. This is currently hardcoded for the highest order curves first.
305 This should be configurable so applications can judge speed vs strength.
308 *) Add TLS v1.2 server support for client authentication.
311 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
315 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
316 FIPS modules versions.
319 *) Add TLS v1.2 client side support for client authentication. Keep cache
320 of handshake records longer as we don't know the hash algorithm to use
321 until after the certificate request message is received.
324 *) Initial TLS v1.2 client support. Add a default signature algorithms
325 extension including all the algorithms we support. Parse new signature
326 format in client key exchange. Relax some ECC signing restrictions for
327 TLS v1.2 as indicated in RFC5246.
330 *) Add server support for TLS v1.2 signature algorithms extension. Switch
331 to new signature format when needed using client digest preference.
332 All server ciphersuites should now work correctly in TLS v1.2. No client
333 support yet and no support for client certificates.
336 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
337 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
338 ciphersuites. At present only RSA key exchange ciphersuites work with
339 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
340 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
341 and version checking.
344 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
345 with this defined it will not be affected by any changes to ssl internal
346 structures. Add several utility functions to allow openssl application
347 to work with OPENSSL_NO_SSL_INTERN defined.
351 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
353 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
356 *) Permit abbreviated handshakes when renegotiating using the function
357 SSL_renegotiate_abbreviated().
358 [Robin Seggelmann <seggelmann@fh-muenster.de>]
360 *) Add call to ENGINE_register_all_complete() to
361 ENGINE_load_builtin_engines(), so some implementations get used
362 automatically instead of needing explicit application support.
365 *) Add support for TLS key exporter as described in RFC5705.
366 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
368 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
369 a few changes are required:
371 Add SSL_OP_NO_TLSv1_1 flag.
373 Update version checking logic to handle version 1.1.
374 Add explicit IV handling (ported from DTLS code).
375 Add command line options to s_client/s_server.
378 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
380 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
381 in CMS and PKCS7 code. When RSA decryption fails use a random key for
382 content decryption and always return the same error. Note: this attack
383 needs on average 2^20 messages so it only affects automated senders. The
384 old behaviour can be reenabled in the CMS code by setting the
385 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
386 an MMA defence is not necessary.
387 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
388 this issue. (CVE-2012-0884)
391 *) Fix CVE-2011-4619: make sure we really are receiving a
392 client hello before rejecting multiple SGC restarts. Thanks to
393 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
396 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
398 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
399 Thanks to Antonio Martin, Enterprise Secure Access Research and
400 Development, Cisco Systems, Inc. for discovering this bug and
401 preparing a fix. (CVE-2012-0050)
404 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
406 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
407 of the Vaudenay padding oracle attack on CBC mode encryption
408 which enables an efficient plaintext recovery attack against
409 the OpenSSL implementation of DTLS. Their attack exploits timing
410 differences arising during decryption processing. A research
411 paper describing this attack can be found at:
412 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
413 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
414 Security Group at Royal Holloway, University of London
415 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
416 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
417 for preparing the fix. (CVE-2011-4108)
418 [Robin Seggelmann, Michael Tuexen]
420 *) Clear bytes used for block padding of SSL 3.0 records.
422 [Adam Langley (Google)]
424 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
425 Kadianakis <desnacked@gmail.com> for discovering this issue and
426 Adam Langley for preparing the fix. (CVE-2011-4619)
427 [Adam Langley (Google)]
429 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
430 [Andrey Kulikov <amdeich@gmail.com>]
432 *) Prevent malformed RFC3779 data triggering an assertion failure.
433 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
434 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
435 [Rob Austein <sra@hactrn.net>]
437 *) Improved PRNG seeding for VOS.
438 [Paul Green <Paul.Green@stratus.com>]
440 *) Fix ssl_ciph.c set-up race.
441 [Adam Langley (Google)]
443 *) Fix spurious failures in ecdsatest.c.
444 [Emilia Käsper (Google)]
446 *) Fix the BIO_f_buffer() implementation (which was mixing different
447 interpretations of the '..._len' fields).
448 [Adam Langley (Google)]
450 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
451 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
452 threads won't reuse the same blinding coefficients.
454 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
455 lock to call BN_BLINDING_invert_ex, and avoids one use of
456 BN_BLINDING_update for each BN_BLINDING structure (previously,
457 the last update always remained unused).
458 [Emilia Käsper (Google)]
460 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
461 [Bob Buckholz (Google)]
463 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
465 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
466 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
467 [Kaspar Brand <ossl@velox.ch>]
469 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
470 for multi-threaded use of ECDH. (CVE-2011-3210)
471 [Adam Langley (Google)]
473 *) Fix x509_name_ex_d2i memory leak on bad inputs.
476 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
477 signature public key algorithm by using OID xref utilities instead.
478 Before this you could only use some ECC ciphersuites with SHA1 only.
481 *) Add protection against ECDSA timing attacks as mentioned in the paper
482 by Billy Bob Brumley and Nicola Tuveri, see:
484 http://eprint.iacr.org/2011/232.pdf
486 [Billy Bob Brumley and Nicola Tuveri]
488 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
490 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
491 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
493 *) Fix bug in string printing code: if *any* escaping is enabled we must
494 escape the escape character (backslash) or the resulting string is
498 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
500 *) Disable code workaround for ancient and obsolete Netscape browsers
501 and servers: an attacker can use it in a ciphersuite downgrade attack.
502 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
505 *) Fixed J-PAKE implementation error, originally discovered by
506 Sebastien Martini, further info and confirmation from Stefan
507 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
510 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
512 *) Fix extension code to avoid race conditions which can result in a buffer
513 overrun vulnerability: resumed sessions must not be modified as they can
514 be shared by multiple threads. CVE-2010-3864
517 *) Fix WIN32 build system to correctly link an ENGINE directory into
521 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
523 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
525 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
527 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
529 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
530 context. The operation can be customised via the ctrl mechanism in
531 case ENGINEs want to include additional functionality.
534 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
537 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
538 output hashes compatible with older versions of OpenSSL.
539 [Willy Weisz <weisz@vcpc.univie.ac.at>]
541 *) Fix compression algorithm handling: if resuming a session use the
542 compression algorithm of the resumed session instead of determining
543 it from client hello again. Don't allow server to change algorithm.
546 *) Add load_crls() function to apps tidying load_certs() too. Add option
547 to verify utility to allow additional CRLs to be included.
550 *) Update OCSP request code to permit adding custom headers to the request:
551 some responders need this.
554 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
556 [Julia Lawall <julia@diku.dk>]
558 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
559 needlessly dereferenced structures, used obsolete functions and
560 didn't handle all updated verify codes correctly.
563 *) Disable MD2 in the default configuration.
566 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
567 indicate the initial BIO being pushed or popped. This makes it possible
568 to determine whether the BIO is the one explicitly called or as a result
569 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
570 it handles reference counts correctly and doesn't zero out the I/O bio
571 when it is not being explicitly popped. WARNING: applications which
572 included workarounds for the old buggy behaviour will need to be modified
573 or they could free up already freed BIOs.
576 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
577 renaming to all platforms (within the 0.9.8 branch, this was
578 done conditionally on Netware platforms to avoid a name clash).
579 [Guenter <lists@gknw.net>]
581 *) Add ECDHE and PSK support to DTLS.
582 [Michael Tuexen <tuexen@fh-muenster.de>]
584 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
588 *) Add "missing" function EVP_MD_flags() (without this the only way to
589 retrieve a digest flags is by accessing the structure directly. Update
590 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
591 or cipher is registered as in the "from" argument. Print out all
592 registered digests in the dgst usage message instead of manually
593 attempting to work them out.
596 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
597 this allows the use of compression and extensions. Change default cipher
598 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
599 by default unless an application cipher string requests it.
602 *) Alter match criteria in PKCS12_parse(). It used to try to use local
603 key ids to find matching certificates and keys but some PKCS#12 files
604 don't follow the (somewhat unwritten) rules and this strategy fails.
605 Now just gather all certificates together and the first private key
606 then look for the first certificate that matches the key.
609 *) Support use of registered digest and cipher names for dgst and cipher
610 commands instead of having to add each one as a special case. So now
617 openssl dgst -sha256 foo
619 and this works for ENGINE based algorithms too.
623 *) Update Gost ENGINE to support parameter files.
624 [Victor B. Wagner <vitus@cryptocom.ru>]
626 *) Support GeneralizedTime in ca utility.
627 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
629 *) Enhance the hash format used for certificate directory links. The new
630 form uses the canonical encoding (meaning equivalent names will work
631 even if they aren't identical) and uses SHA1 instead of MD5. This form
632 is incompatible with the older format and as a result c_rehash should
633 be used to rebuild symbolic links.
636 *) Make PKCS#8 the default write format for private keys, replacing the
637 traditional format. This form is standardised, more secure and doesn't
638 include an implicit MD5 dependency.
641 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
642 committed to OpenSSL should pass this lot as a minimum.
645 *) Add session ticket override functionality for use by EAP-FAST.
646 [Jouni Malinen <j@w1.fi>]
648 *) Modify HMAC functions to return a value. Since these can be implemented
649 in an ENGINE errors can occur.
652 *) Type-checked OBJ_bsearch_ex.
655 *) Type-checked OBJ_bsearch. Also some constification necessitated
656 by type-checking. Still to come: TXT_DB, bsearch(?),
657 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
661 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
662 seconds to a tm structure directly, instead of going through OS
663 specific date routines. This avoids any issues with OS routines such
664 as the year 2038 bug. New *_adj() functions for ASN1 time structures
665 and X509_time_adj_ex() to cover the extended range. The existing
666 X509_time_adj() is still usable and will no longer have any date issues.
669 *) Delta CRL support. New use deltas option which will attempt to locate
670 and search any appropriate delta CRLs available.
672 This work was sponsored by Google.
675 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
676 code and add additional score elements. Validate alternate CRL paths
677 as part of the CRL checking and indicate a new error "CRL path validation
678 error" in this case. Applications wanting additional details can use
679 the verify callback and check the new "parent" field. If this is not
680 NULL CRL path validation is taking place. Existing applications wont
681 see this because it requires extended CRL support which is off by
684 This work was sponsored by Google.
687 *) Support for freshest CRL extension.
689 This work was sponsored by Google.
692 *) Initial indirect CRL support. Currently only supported in the CRLs
693 passed directly and not via lookup. Process certificate issuer
694 CRL entry extension and lookup CRL entries by bother issuer name
695 and serial number. Check and process CRL issuer entry in IDP extension.
697 This work was sponsored by Google.
700 *) Add support for distinct certificate and CRL paths. The CRL issuer
701 certificate is validated separately in this case. Only enabled if
702 an extended CRL support flag is set: this flag will enable additional
703 CRL functionality in future.
705 This work was sponsored by Google.
708 *) Add support for policy mappings extension.
710 This work was sponsored by Google.
713 *) Fixes to pathlength constraint, self issued certificate handling,
714 policy processing to align with RFC3280 and PKITS tests.
716 This work was sponsored by Google.
719 *) Support for name constraints certificate extension. DN, email, DNS
720 and URI types are currently supported.
722 This work was sponsored by Google.
725 *) To cater for systems that provide a pointer-based thread ID rather
726 than numeric, deprecate the current numeric thread ID mechanism and
727 replace it with a structure and associated callback type. This
728 mechanism allows a numeric "hash" to be extracted from a thread ID in
729 either case, and on platforms where pointers are larger than 'long',
730 mixing is done to help ensure the numeric 'hash' is usable even if it
731 can't be guaranteed unique. The default mechanism is to use "&errno"
732 as a pointer-based thread ID to distinguish between threads.
734 Applications that want to provide their own thread IDs should now use
735 CRYPTO_THREADID_set_callback() to register a callback that will call
736 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
738 Note that ERR_remove_state() is now deprecated, because it is tied
739 to the assumption that thread IDs are numeric. ERR_remove_state(0)
740 to free the current thread's error state should be replaced by
741 ERR_remove_thread_state(NULL).
743 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
744 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
745 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
746 application was previously providing a numeric thread callback that
747 was inappropriate for distinguishing threads, then uniqueness might
748 have been obtained with &errno that happened immediately in the
749 intermediate development versions of OpenSSL; this is no longer the
750 case, the numeric thread callback will now override the automatic use
752 [Geoff Thorpe, with help from Bodo Moeller]
754 *) Initial support for different CRL issuing certificates. This covers a
755 simple case where the self issued certificates in the chain exist and
756 the real CRL issuer is higher in the existing chain.
758 This work was sponsored by Google.
761 *) Removed effectively defunct crypto/store from the build.
764 *) Revamp of STACK to provide stronger type-checking. Still to come:
765 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
766 ASN1_STRING, CONF_VALUE.
769 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
770 RAM on SSL connections. This option can save about 34k per idle SSL.
773 *) Revamp of LHASH to provide stronger type-checking. Still to come:
774 STACK, TXT_DB, bsearch, qsort.
777 *) Initial support for Cryptographic Message Syntax (aka CMS) based
778 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
779 support for data, signedData, compressedData, digestedData and
780 encryptedData, envelopedData types included. Scripts to check against
781 RFC4134 examples draft and interop and consistency checks of many
782 content types and variants.
785 *) Add options to enc utility to support use of zlib compression BIO.
788 *) Extend mk1mf to support importing of options and assembly language
789 files from Configure script, currently only included in VC-WIN32.
790 The assembly language rules can now optionally generate the source
791 files from the associated perl scripts.
794 *) Implement remaining functionality needed to support GOST ciphersuites.
795 Interop testing has been performed using CryptoPro implementations.
796 [Victor B. Wagner <vitus@cryptocom.ru>]
798 *) s390x assembler pack.
801 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
805 *) Implement Opaque PRF Input TLS extension as specified in
806 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
807 official specification yet and no extension type assignment by
808 IANA exists, this extension (for now) will have to be explicitly
809 enabled when building OpenSSL by providing the extension number
810 to use. For example, specify an option
812 -DTLSEXT_TYPE_opaque_prf_input=0x9527
814 to the "config" or "Configure" script to enable the extension,
815 assuming extension number 0x9527 (which is a completely arbitrary
816 and unofficial assignment based on the MD5 hash of the Internet
817 Draft). Note that by doing so, you potentially lose
818 interoperability with other TLS implementations since these might
819 be using the same extension number for other purposes.
821 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
822 opaque PRF input value to use in the handshake. This will create
823 an interal copy of the length-'len' string at 'src', and will
824 return non-zero for success.
826 To get more control and flexibility, provide a callback function
829 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
830 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
834 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
837 Callback function 'cb' will be called in handshakes, and is
838 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
839 Argument 'arg' is for application purposes (the value as given to
840 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
841 be provided to the callback function). The callback function
842 has to return non-zero to report success: usually 1 to use opaque
843 PRF input just if possible, or 2 to enforce use of the opaque PRF
844 input. In the latter case, the library will abort the handshake
845 if opaque PRF input is not successfully negotiated.
847 Arguments 'peerinput' and 'len' given to the callback function
848 will always be NULL and 0 in the case of a client. A server will
849 see the client's opaque PRF input through these variables if
850 available (NULL and 0 otherwise). Note that if the server
851 provides an opaque PRF input, the length must be the same as the
852 length of the client's opaque PRF input.
854 Note that the callback function will only be called when creating
855 a new session (session resumption can resume whatever was
856 previously negotiated), and will not be called in SSL 2.0
857 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
858 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
859 for applications that need to enforce opaque PRF input.
863 *) Update ssl code to support digests other than SHA1+MD5 for handshake
866 [Victor B. Wagner <vitus@cryptocom.ru>]
868 *) Add RFC4507 support to OpenSSL. This includes the corrections in
869 RFC4507bis. The encrypted ticket format is an encrypted encoded
870 SSL_SESSION structure, that way new session features are automatically
873 If a client application caches session in an SSL_SESSION structure
874 support is transparent because tickets are now stored in the encoded
877 The SSL_CTX structure automatically generates keys for ticket
878 protection in servers so again support should be possible
879 with no application modification.
881 If a client or server wishes to disable RFC4507 support then the option
882 SSL_OP_NO_TICKET can be set.
884 Add a TLS extension debugging callback to allow the contents of any client
885 or server extensions to be examined.
887 This work was sponsored by Google.
890 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
891 OpenSSL should now compile cleanly on gcc 4.2
892 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
894 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
895 support including streaming MAC support: this is required for GOST
897 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
899 *) Add option -stream to use PKCS#7 streaming in smime utility. New
900 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
901 to output in BER and PEM format.
904 *) Experimental support for use of HMAC via EVP_PKEY interface. This
905 allows HMAC to be handled via the EVP_DigestSign*() interface. The
906 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
907 ENGINE support for HMAC keys which are unextractable. New -mac and
908 -macopt options to dgst utility.
911 *) New option -sigopt to dgst utility. Update dgst to use
912 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
913 alternative signing paramaters such as X9.31 or PSS in the dgst
917 *) Change ssl_cipher_apply_rule(), the internal function that does
918 the work each time a ciphersuite string requests enabling
919 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
920 removing ("!foo+bar") a class of ciphersuites: Now it maintains
921 the order of disabled ciphersuites such that those ciphersuites
922 that most recently went from enabled to disabled not only stay
923 in order with respect to each other, but also have higher priority
924 than other disabled ciphersuites the next time ciphersuites are
927 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
928 the same ciphersuites as with "HIGH" alone, but in a specific
929 order where the PSK ciphersuites come first (since they are the
930 most recently disabled ciphersuites when "HIGH" is parsed).
932 Also, change ssl_create_cipher_list() (using this new
933 funcionality) such that between otherwise identical
934 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
938 *) Change ssl_create_cipher_list() so that it automatically
939 arranges the ciphersuites in reasonable order before starting
940 to process the rule string. Thus, the definition for "DEFAULT"
941 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
942 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
943 This makes it much easier to arrive at a reasonable default order
944 in applications for which anonymous ciphers are OK (meaning
945 that you can't actually use DEFAULT).
946 [Bodo Moeller; suggested by Victor Duchovni]
948 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
949 processing) into multiple integers instead of setting
950 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
951 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
952 (These masks as well as the individual bit definitions are hidden
953 away into the non-exported interface ssl/ssl_locl.h, so this
954 change to the definition of the SSL_CIPHER structure shouldn't
955 affect applications.) This give us more bits for each of these
956 categories, so there is no longer a need to coagulate AES128 and
957 AES256 into a single algorithm bit, and to coagulate Camellia128
958 and Camellia256 into a single algorithm bit, which has led to all
961 Thus, among other things, the kludge introduced in 0.9.7m and
962 0.9.8e for masking out AES256 independently of AES128 or masking
963 out Camellia256 independently of AES256 is not needed here in 0.9.9.
965 With the change, we also introduce new ciphersuite aliases that
966 so far were missing: "AES128", "AES256", "CAMELLIA128", and
970 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
971 Use the leftmost N bytes of the signature input if the input is
972 larger than the prime q (with N being the size in bytes of q).
975 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
976 it yet and it is largely untested.
979 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
982 *) Initial incomplete changes to avoid need for function casts in OpenSSL
983 some compilers (gcc 4.2 and later) reject their use. Safestack is
984 reimplemented. Update ASN1 to avoid use of legacy functions.
987 *) Win32/64 targets are linked with Winsock2.
990 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
991 to external functions. This can be used to increase CRL handling
992 efficiency especially when CRLs are very large by (for example) storing
993 the CRL revoked certificates in a database.
996 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
997 new CRLs added to a directory can be used. New command line option
998 -verify_return_error to s_client and s_server. This causes real errors
999 to be returned by the verify callback instead of carrying on no matter
1000 what. This reflects the way a "real world" verify callback would behave.
1003 *) GOST engine, supporting several GOST algorithms and public key formats.
1004 Kindly donated by Cryptocom.
1007 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1008 partitioned by DP are handled but no indirect CRL or reason partitioning
1009 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1010 selected via a scoring technique which handles IDP and AKID in CRLs.
1013 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1014 will ultimately be used for all verify operations: this will remove the
1015 X509_STORE dependency on certificate verification and allow alternative
1016 lookup methods. X509_STORE based implementations of these two callbacks.
1019 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1020 Modify get_crl() to find a valid (unexpired) CRL if possible.
1023 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1024 this would be called X509_CRL_cmp() but that name is already used by
1025 a function that just compares CRL issuer names. Cache several CRL
1026 extensions in X509_CRL structure and cache CRLDP in X509.
1029 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1030 this maps equivalent X509_NAME structures into a consistent structure.
1031 Name comparison can then be performed rapidly using memcmp().
1034 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1038 *) Allow digests to supply their own micalg string for S/MIME type using
1039 the ctrl EVP_MD_CTRL_MICALG.
1042 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1043 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1044 ctrl. It can then customise the structure before and/or after signing
1048 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1049 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1050 to free up any added signature OIDs.
1053 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1054 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1055 digest and cipher tables. New options added to openssl utility:
1056 list-message-digest-algorithms and list-cipher-algorithms.
1059 *) Change the array representation of binary polynomials: the list
1060 of degrees of non-zero coefficients is now terminated with -1.
1061 Previously it was terminated with 0, which was also part of the
1062 value; thus, the array representation was not applicable to
1063 polynomials where t^0 has coefficient zero. This change makes
1064 the array representation useful in a more general context.
1067 *) Various modifications and fixes to SSL/TLS cipher string
1068 handling. For ECC, the code now distinguishes between fixed ECDH
1069 with RSA certificates on the one hand and with ECDSA certificates
1070 on the other hand, since these are separate ciphersuites. The
1071 unused code for Fortezza ciphersuites has been removed.
1073 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1074 (not "ECDHE"). For consistency with the code for DH
1075 certificates, use of ECDH certificates is now considered ECDH
1076 authentication, not RSA or ECDSA authentication (the latter is
1077 merely the CA's signing algorithm and not actively used in the
1080 The temporary ciphersuite alias "ECCdraft" is no longer
1081 available, and ECC ciphersuites are no longer excluded from "ALL"
1082 and "DEFAULT". The following aliases now exist for RFC 4492
1083 ciphersuites, most of these by analogy with the DH case:
1085 kECDHr - ECDH cert, signed with RSA
1086 kECDHe - ECDH cert, signed with ECDSA
1087 kECDH - ECDH cert (signed with either RSA or ECDSA)
1088 kEECDH - ephemeral ECDH
1089 ECDH - ECDH cert or ephemeral ECDH
1095 AECDH - anonymous ECDH
1096 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1100 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1101 Use correct micalg parameters depending on digest(s) in signed message.
1104 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1105 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1108 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1109 an engine to register a method. Add ENGINE lookups for methods and
1110 functional reference processing.
1113 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1114 EVP_{Sign,Verify}* which allow an application to customise the signature
1118 *) New -resign option to smime utility. This adds one or more signers
1119 to an existing PKCS#7 signedData structure. Also -md option to use an
1120 alternative message digest algorithm for signing.
1123 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1124 create PKCS7 structures containing multiple signers. Update smime
1125 application to support multiple signers.
1128 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1132 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1133 Reorganize PBE internals to lookup from a static table using NIDs,
1134 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1135 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1136 PRF which will be automatically used with PBES2.
1139 *) Replace the algorithm specific calls to generate keys in "req" with the
1143 *) Update PKCS#7 enveloped data routines to use new API. This is now
1144 supported by any public key method supporting the encrypt operation. A
1145 ctrl is added to allow the public key algorithm to examine or modify
1146 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1150 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1151 a default digest type to use. In most cases this will be SHA1 but some
1152 algorithms (such as GOST) need to specify an alternative digest. The
1153 return value indicates how strong the prefernce is 1 means optional and
1154 2 is mandatory (that is it is the only supported type). Modify
1155 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1156 use the default md. Update openssl utilities to use the default digest
1157 type for signing if it is not explicitly indicated.
1160 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1161 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1162 signing method from the key type. This effectively removes the link
1163 between digests and public key types.
1166 *) Add an OID cross reference table and utility functions. Its purpose is to
1167 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1168 rsaEncryption. This will allow some of the algorithm specific hackery
1169 needed to use the correct OID to be removed.
1172 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1173 structures for PKCS7_sign(). They are now set up by the relevant public
1177 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1180 *) Add support for key derivation (agreement) in the API, DH method and
1184 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1185 public and private key formats. As a side effect these add additional
1186 command line functionality not previously available: DSA signatures can be
1187 generated and verified using pkeyutl and DH key support and generation in
1192 [Oliver Tappe <zooey@hirschkaefer.de>]
1194 *) New make target "install_html_docs" installs HTML renditions of the
1196 [Oliver Tappe <zooey@hirschkaefer.de>]
1198 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1199 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1200 support key and parameter generation and add initial key generation
1201 functionality for RSA.
1204 *) Add functions for main EVP_PKEY_method operations. The undocumented
1205 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1206 EVP_PKEY_{encrypt,decrypt}_old.
1209 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1210 key API, doesn't do much yet.
1213 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1214 public key algorithms. New option to openssl utility:
1215 "list-public-key-algorithms" to print out info.
1218 *) Implement the Supported Elliptic Curves Extension for
1219 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1222 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1223 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1226 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1227 utilities such as rsa, dsa, dsaparam etc except they process any key
1231 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1232 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1233 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1237 *) Initial support for pluggable public key ASN1.
1238 De-spaghettify the public key ASN1 handling. Move public and private
1239 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1240 algorithm specific handling to a single module within the relevant
1241 algorithm directory. Add functions to allow (near) opaque processing
1242 of public and private key structures.
1245 *) Implement the Supported Point Formats Extension for
1246 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1249 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1250 for the psk identity [hint] and the psk callback functions to the
1251 SSL_SESSION, SSL and SSL_CTX structure.
1254 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1258 SSL_CTX_use_psk_identity_hint
1259 SSL_get_psk_identity_hint
1260 SSL_get_psk_identity
1261 SSL_use_psk_identity_hint
1263 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1265 *) Add RFC 3161 compliant time stamp request creation, response generation
1266 and response verification functionality.
1267 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1269 *) Add initial support for TLS extensions, specifically for the server_name
1270 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1271 have new members for a host name. The SSL data structure has an
1272 additional member SSL_CTX *initial_ctx so that new sessions can be
1273 stored in that context to allow for session resumption, even after the
1274 SSL has been switched to a new SSL_CTX in reaction to a client's
1275 server_name extension.
1277 New functions (subject to change):
1279 SSL_get_servername()
1280 SSL_get_servername_type()
1283 New CTRL codes and macros (subject to change):
1285 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1286 - SSL_CTX_set_tlsext_servername_callback()
1287 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1288 - SSL_CTX_set_tlsext_servername_arg()
1289 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1291 openssl s_client has a new '-servername ...' option.
1293 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1294 '-key2 ...', '-servername_fatal' (subject to change). This allows
1295 testing the HostName extension for a specific single host name ('-cert'
1296 and '-key' remain fallbacks for handshakes without HostName
1297 negotiation). If the unrecogninzed_name alert has to be sent, this by
1298 default is a warning; it becomes fatal with the '-servername_fatal'
1301 [Peter Sylvester, Remy Allais, Christophe Renou]
1303 *) Whirlpool hash implementation is added.
1306 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1307 bn(64,32). Because of instruction set limitations it doesn't have
1308 any negative impact on performance. This was done mostly in order
1309 to make it possible to share assembler modules, such as bn_mul_mont
1310 implementations, between 32- and 64-bit builds without hassle.
1313 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1314 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1318 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1319 dedicated Montgomery multiplication procedure, is introduced.
1320 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1321 "64-bit" performance on certain 32-bit targets.
1324 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1325 in SSL structures. New SSL ctrl to set maximum send fragment size.
1326 Save memory by seeting the I/O buffer sizes dynamically instead of
1327 using the maximum available value.
1330 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1331 in addition to the text details.
1334 *) Very, very preliminary EXPERIMENTAL support for printing of general
1335 ASN1 structures. This currently produces rather ugly output and doesn't
1336 handle several customised structures at all.
1339 *) Integrated support for PVK file format and some related formats such
1340 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1341 these in the 'rsa' and 'dsa' utilities.
1344 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1347 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1348 place for the (very old) "NETSCAPE" format certificates which are now
1349 handled using new ASN1 code equivalents.
1352 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1353 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1354 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1357 *) Modify CRL distribution points extension code to print out previously
1358 unsupported fields. Enhance extension setting code to allow setting of
1362 *) Add print and set support for Issuing Distribution Point CRL extension.
1365 *) Change 'Configure' script to enable Camellia by default.
1368 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1370 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1371 Thanks to Antonio Martin, Enterprise Secure Access Research and
1372 Development, Cisco Systems, Inc. for discovering this bug and
1373 preparing a fix. (CVE-2012-0050)
1376 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1378 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1379 of the Vaudenay padding oracle attack on CBC mode encryption
1380 which enables an efficient plaintext recovery attack against
1381 the OpenSSL implementation of DTLS. Their attack exploits timing
1382 differences arising during decryption processing. A research
1383 paper describing this attack can be found at:
1384 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1385 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1386 Security Group at Royal Holloway, University of London
1387 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1388 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1389 for preparing the fix. (CVE-2011-4108)
1390 [Robin Seggelmann, Michael Tuexen]
1392 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1393 [Ben Laurie, Kasper <ekasper@google.com>]
1395 *) Clear bytes used for block padding of SSL 3.0 records.
1397 [Adam Langley (Google)]
1399 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1400 Kadianakis <desnacked@gmail.com> for discovering this issue and
1401 Adam Langley for preparing the fix. (CVE-2011-4619)
1402 [Adam Langley (Google)]
1404 *) Prevent malformed RFC3779 data triggering an assertion failure.
1405 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1406 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1407 [Rob Austein <sra@hactrn.net>]
1409 *) Fix ssl_ciph.c set-up race.
1410 [Adam Langley (Google)]
1412 *) Fix spurious failures in ecdsatest.c.
1413 [Emilia Käsper (Google)]
1415 *) Fix the BIO_f_buffer() implementation (which was mixing different
1416 interpretations of the '..._len' fields).
1417 [Adam Langley (Google)]
1419 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1420 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1421 threads won't reuse the same blinding coefficients.
1423 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1424 lock to call BN_BLINDING_invert_ex, and avoids one use of
1425 BN_BLINDING_update for each BN_BLINDING structure (previously,
1426 the last update always remained unused).
1427 [Emilia Käsper (Google)]
1429 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1430 for multi-threaded use of ECDH.
1431 [Adam Langley (Google)]
1433 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1436 *) Add protection against ECDSA timing attacks as mentioned in the paper
1437 by Billy Bob Brumley and Nicola Tuveri, see:
1439 http://eprint.iacr.org/2011/232.pdf
1441 [Billy Bob Brumley and Nicola Tuveri]
1443 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1445 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1446 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1448 *) Fix bug in string printing code: if *any* escaping is enabled we must
1449 escape the escape character (backslash) or the resulting string is
1453 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1455 *) Disable code workaround for ancient and obsolete Netscape browsers
1456 and servers: an attacker can use it in a ciphersuite downgrade attack.
1457 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1460 *) Fixed J-PAKE implementation error, originally discovered by
1461 Sebastien Martini, further info and confirmation from Stefan
1462 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1465 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1467 *) Fix extension code to avoid race conditions which can result in a buffer
1468 overrun vulnerability: resumed sessions must not be modified as they can
1469 be shared by multiple threads. CVE-2010-3864
1472 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1475 *) Don't reencode certificate when calculating signature: cache and use
1476 the original encoding instead. This makes signature verification of
1477 some broken encodings work correctly.
1480 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1481 is also one of the inputs.
1482 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1484 *) Don't repeatedly append PBE algorithms to table if they already exist.
1485 Sort table on each new add. This effectively makes the table read only
1486 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1490 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1492 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1495 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1496 access or freeing data twice (CVE-2010-0742)
1497 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1499 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1500 common in certificates and some applications which only call
1501 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1505 Reduce copying into .apps and .test in makevms.com
1506 Don't try to use blank CA certificate in CA.com
1507 Allow use of C files from original directories in maketests.com
1508 [Steven M. Schweda" <sms@antinode.info>]
1510 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1512 *) When rejecting SSL/TLS records due to an incorrect version number, never
1513 update s->server with a new major version number. As of
1514 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1515 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1516 the previous behavior could result in a read attempt at NULL when
1517 receiving specific incorrect SSL/TLS records once record payload
1518 protection is active. (CVE-2010-0740)
1519 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1521 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1522 could be crashed if the relevant tables were not present (e.g. chrooted).
1523 [Tomas Hoger <thoger@redhat.com>]
1525 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1527 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1528 [Martin Olsson, Neel Mehta]
1530 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1531 accommodate for stack sorting, always a write lock!).
1534 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1535 excessive delays in the RAND_poll(): over a minute. As a workaround
1536 include a time check in the inner Heap32Next loop too.
1539 *) The code that handled flushing of data in SSL/TLS originally used the
1540 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1541 the problem outlined in PR#1949. The fix suggested there however can
1542 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1543 of Apache). So instead simplify the code to flush unconditionally.
1544 This should be fine since flushing with no data to flush is a no op.
1547 *) Handle TLS versions 2.0 and later properly and correctly use the
1548 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1549 off ancient servers have a habit of sticking around for a while...
1552 *) Modify compression code so it frees up structures without using the
1553 ex_data callbacks. This works around a problem where some applications
1554 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1555 restarting) then use compression (e.g. SSL with compression) later.
1556 This results in significant per-connection memory leaks and
1557 has caused some security issues including CVE-2008-1678 and
1561 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1562 change when encrypting or decrypting.
1565 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1566 connect and renegotiate with servers which do not support RI.
1567 Until RI is more widely deployed this option is enabled by default.
1570 *) Add "missing" ssl ctrls to clear options and mode.
1573 *) If client attempts to renegotiate and doesn't support RI respond with
1574 a no_renegotiation alert as required by RFC5746. Some renegotiating
1575 TLS clients will continue a connection gracefully when they receive
1576 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1577 waiting for a server hello which it will never receive. Now we treat a
1578 received no_renegotiation alert as a fatal error. This is because
1579 applications requesting a renegotiation might well expect it to succeed
1580 and would have no code in place to handle the server denying it so the
1581 only safe thing to do is to terminate the connection.
1584 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1585 peer supports secure renegotiation and 0 otherwise. Print out peer
1586 renegotiation support in s_client/s_server.
1589 *) Replace the highly broken and deprecated SPKAC certification method with
1590 the updated NID creation version. This should correctly handle UTF8.
1593 *) Implement RFC5746. Re-enable renegotiation but require the extension
1594 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1595 turns out to be a bad idea. It has been replaced by
1596 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1597 SSL_CTX_set_options(). This is really not recommended unless you
1598 know what you are doing.
1599 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1601 *) Fixes to stateless session resumption handling. Use initial_ctx when
1602 issuing and attempting to decrypt tickets in case it has changed during
1603 servername handling. Use a non-zero length session ID when attempting
1604 stateless session resumption: this makes it possible to determine if
1605 a resumption has occurred immediately after receiving server hello
1606 (several places in OpenSSL subtly assume this) instead of later in
1610 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1611 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1612 fixes for a few places where the return code is not checked
1614 [Julia Lawall <julia@diku.dk>]
1616 *) Add --strict-warnings option to Configure script to include devteam
1617 warnings in other configurations.
1620 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1621 makes it possible to install openssl libraries in locations which
1622 have names other than "lib", for example "/usr/lib64" which some
1624 [Steve Henson, based on patch from Jeremy Utley]
1626 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1627 X690 8.9.12 and can produce some misleading textual output of OIDs.
1628 [Steve Henson, reported by Dan Kaminsky]
1630 *) Delete MD2 from algorithm tables. This follows the recommendation in
1631 several standards that it is not used in new applications due to
1632 several cryptographic weaknesses. For binary compatibility reasons
1633 the MD2 API is still compiled in by default.
1636 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1640 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1641 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1643 [Guenter <lists@gknw.net>]
1645 *) Fix the server certificate chain building code to use X509_verify_cert(),
1646 it used to have an ad-hoc builder which was unable to cope with anything
1647 other than a simple chain.
1648 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1650 *) Don't check self signed certificate signatures in X509_verify_cert()
1651 by default (a flag can override this): it just wastes time without
1652 adding any security. As a useful side effect self signed root CAs
1653 with non-FIPS digests are now usable in FIPS mode.
1656 *) In dtls1_process_out_of_seq_message() the check if the current message
1657 is already buffered was missing. For every new message was memory
1658 allocated, allowing an attacker to perform an denial of service attack
1659 with sending out of seq handshake messages until there is no memory
1660 left. Additionally every future messege was buffered, even if the
1661 sequence number made no sense and would be part of another handshake.
1662 So only messages with sequence numbers less than 10 in advance will be
1663 buffered. (CVE-2009-1378)
1664 [Robin Seggelmann, discovered by Daniel Mentz]
1666 *) Records are buffered if they arrive with a future epoch to be
1667 processed after finishing the corresponding handshake. There is
1668 currently no limitation to this buffer allowing an attacker to perform
1669 a DOS attack with sending records with future epochs until there is no
1670 memory left. This patch adds the pqueue_size() function to detemine
1671 the size of a buffer and limits the record buffer to 100 entries.
1673 [Robin Seggelmann, discovered by Daniel Mentz]
1675 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1676 parent structure is freed. (CVE-2009-1379)
1679 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1680 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1683 [Ilya O. <vrghost@gmail.com>]
1685 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1687 *) Disable renegotiation completely - this fixes a severe security
1688 problem (CVE-2009-3555) at the cost of breaking all
1689 renegotiation. Renegotiation can be re-enabled by setting
1690 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1691 run-time. This is really not recommended unless you know what
1695 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1697 *) Don't set val to NULL when freeing up structures, it is freed up by
1698 underlying code. If sizeof(void *) > sizeof(long) this can result in
1699 zeroing past the valid field. (CVE-2009-0789)
1700 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1702 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1703 checked correctly. This would allow some invalid signed attributes to
1704 appear to verify correctly. (CVE-2009-0591)
1705 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1707 *) Reject UniversalString and BMPString types with invalid lengths. This
1708 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1709 a legal length. (CVE-2009-0590)
1712 *) Set S/MIME signing as the default purpose rather than setting it
1713 unconditionally. This allows applications to override it at the store
1717 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1718 to handle some structures.
1721 *) Improve efficiency of mem_gets: don't search whole buffer each time
1723 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1725 *) New -hex option for openssl rand.
1728 *) Print out UTF8String and NumericString when parsing ASN1.
1731 *) Support NumericString type for name components.
1734 *) Allow CC in the environment to override the automatically chosen
1735 compiler. Note that nothing is done to ensure flags work with the
1739 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1741 *) Properly check EVP_VerifyFinal() and similar return values
1743 [Ben Laurie, Bodo Moeller, Google Security Team]
1745 *) Enable TLS extensions by default.
1748 *) Allow the CHIL engine to be loaded, whether the application is
1749 multithreaded or not. (This does not release the developer from the
1750 obligation to set up the dynamic locking callbacks.)
1751 [Sander Temme <sander@temme.net>]
1753 *) Use correct exit code if there is an error in dgst command.
1754 [Steve Henson; problem pointed out by Roland Dirlewanger]
1756 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1757 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1760 *) Add experimental JPAKE support, including demo authentication in
1761 s_client and s_server.
1764 *) Set the comparison function in v3_addr_canonize().
1765 [Rob Austein <sra@hactrn.net>]
1767 *) Add support for XMPP STARTTLS in s_client.
1768 [Philip Paeps <philip@freebsd.org>]
1770 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1771 to ensure that even with this option, only ciphersuites in the
1772 server's preference list will be accepted. (Note that the option
1773 applies only when resuming a session, so the earlier behavior was
1774 just about the algorithm choice for symmetric cryptography.)
1777 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1779 *) Fix NULL pointer dereference if a DTLS server received
1780 ChangeCipherSpec as first record (CVE-2009-1386).
1783 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1784 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1787 *) The fix in 0.9.8c that supposedly got rid of unsafe
1788 double-checked locking was incomplete for RSA blinding,
1789 addressing just one layer of what turns out to have been
1790 doubly unsafe triple-checked locking.
1792 So now fix this for real by retiring the MONT_HELPER macro
1793 in crypto/rsa/rsa_eay.c.
1795 [Bodo Moeller; problem pointed out by Marius Schilder]
1797 *) Various precautionary measures:
1799 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1801 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1802 (NB: This would require knowledge of the secret session ticket key
1803 to exploit, in which case you'd be SOL either way.)
1805 - Change bn_nist.c so that it will properly handle input BIGNUMs
1806 outside the expected range.
1808 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1811 [Neel Mehta, Bodo Moeller]
1813 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1814 the load fails. Useful for distros.
1815 [Ben Laurie and the FreeBSD team]
1817 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1820 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1823 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1825 This work was sponsored by Logica.
1828 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1829 keystores. Support for SSL/TLS client authentication too.
1830 Not compiled unless enable-capieng specified to Configure.
1832 This work was sponsored by Logica.
1835 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1836 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1837 attribute creation routines such as certifcate requests and PKCS#12
1841 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1843 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1844 handshake which could lead to a cilent crash as found using the
1845 Codenomicon TLS test suite (CVE-2008-1672)
1846 [Steve Henson, Mark Cox]
1848 *) Fix double free in TLS server name extensions which could lead to
1849 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1852 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1854 Clear the error queue to ensure that error entries left from
1855 older function calls do not interfere with the correct operation.
1856 [Lutz Jaenicke, Erik de Castro Lopo]
1858 *) Remove root CA certificates of commercial CAs:
1860 The OpenSSL project does not recommend any specific CA and does not
1861 have any policy with respect to including or excluding any CA.
1862 Therefore it does not make any sense to ship an arbitrary selection
1863 of root CA certificates with the OpenSSL software.
1866 *) RSA OAEP patches to fix two separate invalid memory reads.
1867 The first one involves inputs when 'lzero' is greater than
1868 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1869 before the beginning of from). The second one involves inputs where
1870 the 'db' section contains nothing but zeroes (there is a one-byte
1871 invalid read after the end of 'db').
1872 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1874 *) Partial backport from 0.9.9-dev:
1876 Introduce bn_mul_mont (dedicated Montgomery multiplication
1877 procedure) as a candidate for BIGNUM assembler implementation.
1878 While 0.9.9-dev uses assembler for various architectures, only
1879 x86_64 is available by default here in the 0.9.8 branch, and
1880 32-bit x86 is available through a compile-time setting.
1882 To try the 32-bit x86 assembler implementation, use Configure
1883 option "enable-montasm" (which exists only for this backport).
1885 As "enable-montasm" for 32-bit x86 disclaims code stability
1886 anyway, in this constellation we activate additional code
1887 backported from 0.9.9-dev for further performance improvements,
1888 namely BN_from_montgomery_word. (To enable this otherwise,
1889 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1891 [Andy Polyakov (backport partially by Bodo Moeller)]
1893 *) Add TLS session ticket callback. This allows an application to set
1894 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1895 values. This is useful for key rollover for example where several key
1896 sets may exist with different names.
1899 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1900 This was broken until now in 0.9.8 releases, such that the only way
1901 a registered ENGINE could be used (assuming it initialises
1902 successfully on the host) was to explicitly set it as the default
1903 for the relevant algorithms. This is in contradiction with 0.9.7
1904 behaviour and the documentation. With this fix, when an ENGINE is
1905 registered into a given algorithm's table of implementations, the
1906 'uptodate' flag is reset so that auto-discovery will be used next
1907 time a new context for that algorithm attempts to select an
1909 [Ian Lister (tweaked by Geoff Thorpe)]
1911 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1912 implemention in the following ways:
1914 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1917 Lack of BER streaming support means one pass streaming processing is
1918 only supported if data is detached: setting the streaming flag is
1919 ignored for embedded content.
1921 CMS support is disabled by default and must be explicitly enabled
1922 with the enable-cms configuration option.
1925 *) Update the GMP engine glue to do direct copies between BIGNUM and
1926 mpz_t when openssl and GMP use the same limb size. Otherwise the
1927 existing "conversion via a text string export" trick is still used.
1928 [Paul Sheer <paulsheer@gmail.com>]
1930 *) Zlib compression BIO. This is a filter BIO which compressed and
1931 uncompresses any data passed through it.
1934 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1935 RFC3394 compatible AES key wrapping.
1938 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1939 sets string data without copying. X509_ALGOR_set0() and
1940 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1941 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1942 from an X509_ATTRIBUTE structure optionally checking it occurs only
1943 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1947 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1948 to get the expected BN_FLG_CONSTTIME behavior.
1949 [Bodo Moeller (Google)]
1953 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1954 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1955 - added some more tests to do_tests.pl
1956 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1957 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1958 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1959 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1960 - various changes to netware.pl to enable gcc-cross builds on Win32
1962 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1963 - various changes to fix missing prototype warnings
1964 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1965 - added AES, WHIRLPOOL and CPUID assembler code to build files
1966 - added missing AES assembler make rules to mk1mf.pl
1967 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1968 [Guenter Knauf <eflash@gmx.net>]
1970 *) Implement certificate status request TLS extension defined in RFC3546.
1971 A client can set the appropriate parameters and receive the encoded
1972 OCSP response via a callback. A server can query the supplied parameters
1973 and set the encoded OCSP response in the callback. Add simplified examples
1974 to s_client and s_server.
1977 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1979 *) Fix various bugs:
1980 + Binary incompatibility of ssl_ctx_st structure
1981 + DTLS interoperation with non-compliant servers
1982 + Don't call get_session_cb() without proposed session
1983 + Fix ia64 assembler code
1984 [Andy Polyakov, Steve Henson]
1986 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1988 *) DTLS Handshake overhaul. There were longstanding issues with
1989 OpenSSL DTLS implementation, which were making it impossible for
1990 RFC 4347 compliant client to communicate with OpenSSL server.
1991 Unfortunately just fixing these incompatibilities would "cut off"
1992 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1993 server keeps tolerating non RFC compliant syntax. The opposite is
1994 not true, 0.9.8f client can not communicate with earlier server.
1995 This update even addresses CVE-2007-4995.
1998 *) Changes to avoid need for function casts in OpenSSL: some compilers
1999 (gcc 4.2 and later) reject their use.
2000 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2003 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2004 RFC4507bis. The encrypted ticket format is an encrypted encoded
2005 SSL_SESSION structure, that way new session features are automatically
2008 If a client application caches session in an SSL_SESSION structure
2009 support is transparent because tickets are now stored in the encoded
2012 The SSL_CTX structure automatically generates keys for ticket
2013 protection in servers so again support should be possible
2014 with no application modification.
2016 If a client or server wishes to disable RFC4507 support then the option
2017 SSL_OP_NO_TICKET can be set.
2019 Add a TLS extension debugging callback to allow the contents of any client
2020 or server extensions to be examined.
2022 This work was sponsored by Google.
2025 *) Add initial support for TLS extensions, specifically for the server_name
2026 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2027 have new members for a host name. The SSL data structure has an
2028 additional member SSL_CTX *initial_ctx so that new sessions can be
2029 stored in that context to allow for session resumption, even after the
2030 SSL has been switched to a new SSL_CTX in reaction to a client's
2031 server_name extension.
2033 New functions (subject to change):
2035 SSL_get_servername()
2036 SSL_get_servername_type()
2039 New CTRL codes and macros (subject to change):
2041 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2042 - SSL_CTX_set_tlsext_servername_callback()
2043 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2044 - SSL_CTX_set_tlsext_servername_arg()
2045 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2047 openssl s_client has a new '-servername ...' option.
2049 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2050 '-key2 ...', '-servername_fatal' (subject to change). This allows
2051 testing the HostName extension for a specific single host name ('-cert'
2052 and '-key' remain fallbacks for handshakes without HostName
2053 negotiation). If the unrecogninzed_name alert has to be sent, this by
2054 default is a warning; it becomes fatal with the '-servername_fatal'
2057 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2059 *) Add AES and SSE2 assembly language support to VC++ build.
2062 *) Mitigate attack on final subtraction in Montgomery reduction.
2065 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2066 (which previously caused an internal error).
2069 *) Squeeze another 10% out of IGE mode when in != out.
2072 *) AES IGE mode speedup.
2073 [Dean Gaudet (Google)]
2075 *) Add the Korean symmetric 128-bit cipher SEED (see
2076 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2077 add SEED ciphersuites from RFC 4162:
2079 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2080 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2081 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2082 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2084 To minimize changes between patchlevels in the OpenSSL 0.9.8
2085 series, SEED remains excluded from compilation unless OpenSSL
2086 is configured with 'enable-seed'.
2087 [KISA, Bodo Moeller]
2089 *) Mitigate branch prediction attacks, which can be practical if a
2090 single processor is shared, allowing a spy process to extract
2091 information. For detailed background information, see
2092 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2093 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2094 and Necessary Software Countermeasures"). The core of the change
2095 are new versions BN_div_no_branch() and
2096 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2097 respectively, which are slower, but avoid the security-relevant
2098 conditional branches. These are automatically called by BN_div()
2099 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2100 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2101 remove a conditional branch.
2103 BN_FLG_CONSTTIME is the new name for the previous
2104 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2105 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2106 in the exponent causes BN_mod_exp_mont() to use the alternative
2107 implementation in BN_mod_exp_mont_consttime().) The old name
2108 remains as a deprecated alias.
2110 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2111 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2112 constant-time implementations for more than just exponentiation.
2113 Here too the old name is kept as a deprecated alias.
2115 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2116 the BN_BLINDING structure gets an independent copy of the
2117 modulus. This means that the previous "BIGNUM *m" argument to
2118 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2119 essentially becomes "const BIGNUM *m", although we can't actually
2120 change this in the header file before 0.9.9. It allows
2121 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2122 enable BN_FLG_CONSTTIME.
2124 [Matthew D Wood (Intel Corp)]
2126 *) In the SSL/TLS server implementation, be strict about session ID
2127 context matching (which matters if an application uses a single
2128 external cache for different purposes). Previously,
2129 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2130 set. This did ensure strict client verification, but meant that,
2131 with applications using a single external cache for quite
2132 different requirements, clients could circumvent ciphersuite
2133 restrictions for a given session ID context by starting a session
2134 in a different context.
2137 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2138 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2139 authentication-only ciphersuites.
2142 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2143 not complete and could lead to a possible single byte overflow
2144 (CVE-2007-5135) [Ben Laurie]
2146 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2148 *) Since AES128 and AES256 (and similarly Camellia128 and
2149 Camellia256) share a single mask bit in the logic of
2150 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2151 kludge to work properly if AES128 is available and AES256 isn't
2152 (or if Camellia128 is available and Camellia256 isn't).
2155 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2156 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2157 When a point or a seed is encoded in a BIT STRING, we need to
2158 prevent the removal of trailing zero bits to get the proper DER
2159 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2160 of a NamedBitList, for which trailing 0 bits need to be removed.)
2163 *) Have SSL/TLS server implementation tolerate "mismatched" record
2164 protocol version while receiving ClientHello even if the
2165 ClientHello is fragmented. (The server can't insist on the
2166 particular protocol version it has chosen before the ServerHello
2167 message has informed the client about his choice.)
2170 *) Add RFC 3779 support.
2171 [Rob Austein for ARIN, Ben Laurie]
2173 *) Load error codes if they are not already present instead of using a
2174 static variable. This allows them to be cleanly unloaded and reloaded.
2175 Improve header file function name parsing.
2178 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2179 or CAPABILITY handshake as required by RFCs.
2182 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2184 *) Introduce limits to prevent malicious keys being able to
2185 cause a denial of service. (CVE-2006-2940)
2186 [Steve Henson, Bodo Moeller]
2188 *) Fix ASN.1 parsing of certain invalid structures that can result
2189 in a denial of service. (CVE-2006-2937) [Steve Henson]
2191 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2192 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2194 *) Fix SSL client code which could crash if connecting to a
2195 malicious SSLv2 server. (CVE-2006-4343)
2196 [Tavis Ormandy and Will Drewry, Google Security Team]
2198 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2199 match only those. Before that, "AES256-SHA" would be interpreted
2200 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2201 the same strength classification in 0.9.7h) as we currently only
2202 have a single AES bit in the ciphersuite description bitmap.
2203 That change, however, also applied to ciphersuite strings such as
2204 "RC4-MD5" that intentionally matched multiple ciphersuites --
2205 namely, SSL 2.0 ciphersuites in addition to the more common ones
2206 from SSL 3.0/TLS 1.0.
2208 So we change the selection algorithm again: Naming an explicit
2209 ciphersuite selects this one ciphersuite, and any other similar
2210 ciphersuite (same bitmap) from *other* protocol versions.
2211 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2212 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2214 Since SSL 2.0 does not have any ciphersuites for which the
2215 128/256 bit distinction would be relevant, this works for now.
2216 The proper fix will be to use different bits for AES128 and
2217 AES256, which would have avoided the problems from the beginning;
2218 however, bits are scarce, so we can only do this in a new release
2219 (not just a patchlevel) when we can change the SSL_CIPHER
2220 definition to split the single 'unsigned long mask' bitmap into
2221 multiple values to extend the available space.
2225 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2227 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2228 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2230 *) Add AES IGE and biIGE modes.
2233 *) Change the Unix randomness entropy gathering to use poll() when
2234 possible instead of select(), since the latter has some
2235 undesirable limitations.
2236 [Darryl Miles via Richard Levitte and Bodo Moeller]
2238 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2239 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2240 cannot be implicitly activated as part of, e.g., the "AES" alias.
2241 However, please upgrade to OpenSSL 0.9.9[-dev] for
2242 non-experimental use of the ECC ciphersuites to get TLS extension
2243 support, which is required for curve and point format negotiation
2244 to avoid potential handshake problems.
2247 *) Disable rogue ciphersuites:
2249 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2250 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2251 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2253 The latter two were purportedly from
2254 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2257 Also deactivate the remaining ciphersuites from
2258 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2259 unofficial, and the ID has long expired.
2262 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2263 dual-core machines) and other potential thread-safety issues.
2266 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2267 versions), which is now available for royalty-free use
2268 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2269 Also, add Camellia TLS ciphersuites from RFC 4132.
2271 To minimize changes between patchlevels in the OpenSSL 0.9.8
2272 series, Camellia remains excluded from compilation unless OpenSSL
2273 is configured with 'enable-camellia'.
2276 *) Disable the padding bug check when compression is in use. The padding
2277 bug check assumes the first packet is of even length, this is not
2278 necessarily true if compresssion is enabled and can result in false
2279 positives causing handshake failure. The actual bug test is ancient
2280 code so it is hoped that implementations will either have fixed it by
2281 now or any which still have the bug do not support compression.
2284 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2286 *) When applying a cipher rule check to see if string match is an explicit
2287 cipher suite and only match that one cipher suite if it is.
2290 *) Link in manifests for VC++ if needed.
2291 [Austin Ziegler <halostatue@gmail.com>]
2293 *) Update support for ECC-based TLS ciphersuites according to
2294 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2295 TLS extensions, which are supported starting with the 0.9.9
2296 branch, not in the OpenSSL 0.9.8 branch).
2299 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2300 opaque EVP_CIPHER_CTX handling.
2303 *) Fixes and enhancements to zlib compression code. We now only use
2304 "zlib1.dll" and use the default __cdecl calling convention on Win32
2305 to conform with the standards mentioned here:
2306 http://www.zlib.net/DLL_FAQ.txt
2307 Static zlib linking now works on Windows and the new --with-zlib-include
2308 --with-zlib-lib options to Configure can be used to supply the location
2309 of the headers and library. Gracefully handle case where zlib library
2313 *) Several fixes and enhancements to the OID generation code. The old code
2314 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2315 handle numbers larger than ULONG_MAX, truncated printing and had a
2316 non standard OBJ_obj2txt() behaviour.
2319 *) Add support for building of engines under engine/ as shared libraries
2320 under VC++ build system.
2323 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2324 Hopefully, we will not see any false combination of paths any more.
2327 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2329 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2330 (part of SSL_OP_ALL). This option used to disable the
2331 countermeasure against man-in-the-middle protocol-version
2332 rollback in the SSL 2.0 server implementation, which is a bad
2333 idea. (CVE-2005-2969)
2335 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2336 for Information Security, National Institute of Advanced Industrial
2337 Science and Technology [AIST], Japan)]
2339 *) Add two function to clear and return the verify parameter flags.
2342 *) Keep cipherlists sorted in the source instead of sorting them at
2343 runtime, thus removing the need for a lock.
2346 *) Avoid some small subgroup attacks in Diffie-Hellman.
2347 [Nick Mathewson and Ben Laurie]
2349 *) Add functions for well-known primes.
2352 *) Extended Windows CE support.
2353 [Satoshi Nakamura and Andy Polyakov]
2355 *) Initialize SSL_METHOD structures at compile time instead of during
2356 runtime, thus removing the need for a lock.
2359 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2360 attempting to decrypt each encrypted key in turn. Add support to
2364 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2366 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2369 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2372 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2373 key into the same file any more.
2376 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2379 *) Add -utf8 command line and config file option to 'ca'.
2380 [Stefan <stf@udoma.org]
2382 *) Removed the macro des_crypt(), as it seems to conflict with some
2383 libraries. Use DES_crypt().
2386 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2387 involves renaming the source and generated shared-libs for
2388 both. The engines will accept the corrected or legacy ids
2389 ('ncipher' and '4758_cca' respectively) when binding. NB,
2390 this only applies when building 'shared'.
2391 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2393 *) Add attribute functions to EVP_PKEY structure. Modify
2394 PKCS12_create() to recognize a CSP name attribute and
2395 use it. Make -CSP option work again in pkcs12 utility.
2398 *) Add new functionality to the bn blinding code:
2399 - automatic re-creation of the BN_BLINDING parameters after
2400 a fixed number of uses (currently 32)
2401 - add new function for parameter creation
2402 - introduce flags to control the update behaviour of the
2403 BN_BLINDING parameters
2404 - hide BN_BLINDING structure
2405 Add a second BN_BLINDING slot to the RSA structure to improve
2406 performance when a single RSA object is shared among several
2410 *) Add support for DTLS.
2411 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2413 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2414 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2417 *) Remove buggy and incompletet DH cert support from
2418 ssl/ssl_rsa.c and ssl/s3_both.c
2421 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2422 the apps/openssl applications.
2425 *) Compile clean with "-Wall -Wmissing-prototypes
2426 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2427 DEBUG_SAFESTACK must also be set.
2430 *) Change ./Configure so that certain algorithms can be disabled by default.
2431 The new counterpiece to "no-xxx" is "enable-xxx".
2433 The patented RC5 and MDC2 algorithms will now be disabled unless
2434 "enable-rc5" and "enable-mdc2", respectively, are specified.
2436 (IDEA remains enabled despite being patented. This is because IDEA
2437 is frequently required for interoperability, and there is no license
2438 fee for non-commercial use. As before, "no-idea" can be used to
2439 avoid this algorithm.)
2443 *) Add processing of proxy certificates (see RFC 3820). This work was
2444 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2445 EGEE (Enabling Grids for E-science in Europe).
2448 *) RC4 performance overhaul on modern architectures/implementations, such
2449 as Intel P4, IA-64 and AMD64.
2452 *) New utility extract-section.pl. This can be used specify an alternative
2453 section number in a pod file instead of having to treat each file as
2454 a separate case in Makefile. This can be done by adding two lines to the
2457 =for comment openssl_section:XXX
2459 The blank line is mandatory.
2463 *) New arguments -certform, -keyform and -pass for s_client and s_server
2464 to allow alternative format key and certificate files and passphrase
2468 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2469 update associated structures and add various utility functions.
2471 Add new policy related verify parameters, include policy checking in
2472 standard verify code. Enhance 'smime' application with extra parameters
2473 to support policy checking and print out.
2476 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2477 Nehemiah processors. These extensions support AES encryption in hardware
2478 as well as RNG (though RNG support is currently disabled).
2479 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2481 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2484 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2485 [Andy Polyakov and a number of other people]
2487 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2488 implementation contributed by IBM.
2489 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2491 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2492 exponent rather than 'unsigned long'. There is a corresponding change to
2493 the new 'rsa_keygen' element of the RSA_METHOD structure.
2494 [Jelte Jansen, Geoff Thorpe]
2496 *) Functionality for creating the initial serial number file is now
2497 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2499 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2500 number file to 1, which is bound to cause problems. To avoid
2501 the problems while respecting compatibility between different 0.9.7
2502 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2503 CA.pl for serial number initialization. With the new release 0.9.8,
2504 we can fix the problem directly in the 'ca' utility.)
2507 *) Reduced header interdepencies by declaring more opaque objects in
2508 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2509 give fewer recursive includes, which could break lazy source code - so
2510 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2511 developers should define this symbol when building and using openssl to
2512 ensure they track the recommended behaviour, interfaces, [etc], but
2513 backwards-compatible behaviour prevails when this isn't defined.
2516 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2519 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2520 This will generate a random key of the appropriate length based on the
2521 cipher context. The EVP_CIPHER can provide its own random key generation
2522 routine to support keys of a specific form. This is used in the des and
2523 3des routines to generate a key of the correct parity. Update S/MIME
2524 code to use new functions and hence generate correct parity DES keys.
2525 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2526 valid (weak or incorrect parity).
2529 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2530 as looking them up. This is useful when the verified structure may contain
2531 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2532 present unless the new PKCS7_NO_CRL flag is asserted.
2535 *) Extend ASN1 oid configuration module. It now additionally accepts the
2538 shortName = some long name, 1.2.3.4
2541 *) Reimplemented the BN_CTX implementation. There is now no more static
2542 limitation on the number of variables it can handle nor the depth of the
2543 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2544 information can now expand as required, and rather than having a single
2545 static array of bignums, BN_CTX now uses a linked-list of such arrays
2546 allowing it to expand on demand whilst maintaining the usefulness of
2547 BN_CTX's "bundling".
2550 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2551 to allow all RSA operations to function using a single BN_CTX.
2554 *) Preliminary support for certificate policy evaluation and checking. This
2555 is initially intended to pass the tests outlined in "Conformance Testing
2556 of Relying Party Client Certificate Path Processing Logic" v1.07.
2559 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2560 remained unused and not that useful. A variety of other little bignum
2561 tweaks and fixes have also been made continuing on from the audit (see
2565 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2566 associated ASN1, EVP and SSL functions and old ASN1 macros.
2569 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2570 and this should never fail. So the return value from the use of
2571 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2572 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2575 *) BN_CTX_get() should return zero-valued bignums, providing the same
2576 initialised value as BN_new().
2577 [Geoff Thorpe, suggested by Ulf Möller]
2579 *) Support for inhibitAnyPolicy certificate extension.
2582 *) An audit of the BIGNUM code is underway, for which debugging code is
2583 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2584 is considered valid when processing BIGNUMs, and causes execution to
2585 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2586 further steps are taken to deliberately pollute unused data in BIGNUM
2587 structures to try and expose faulty code further on. For now, openssl will
2588 (in its default mode of operation) continue to tolerate the inconsistent
2589 forms that it has tolerated in the past, but authors and packagers should
2590 consider trying openssl and their own applications when compiled with
2591 these debugging symbols defined. It will help highlight potential bugs in
2592 their own code, and will improve the test coverage for OpenSSL itself. At
2593 some point, these tighter rules will become openssl's default to improve
2594 maintainability, though the assert()s and other overheads will remain only
2595 in debugging configurations. See bn.h for more details.
2596 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2598 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2599 that can only be obtained through BN_CTX_new() (which implicitly
2600 initialises it). The presence of this function only made it possible
2601 to overwrite an existing structure (and cause memory leaks).
2604 *) Because of the callback-based approach for implementing LHASH as a
2605 template type, lh_insert() adds opaque objects to hash-tables and
2606 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2607 to clean up those corresponding objects before destroying the hash table
2608 (and losing the object pointers). So some over-zealous constifications in
2609 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2610 objects as "const" and the lh_doall[_arg] callback wrappers are not
2611 prototyped to have "const" restrictions on the object pointers they are
2612 given (and so aren't required to cast them away any more).
2615 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2616 (speed) prefers to use its own implementation. The two implementations
2617 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2618 its object type properly exposed (MS_TM) instead of casting to/from "char
2619 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2620 aren't necessarily the greatest nomenclatures - but this is what was used
2621 internally to the implementation so I've used that for now.
2624 *) Ensure that deprecated functions do not get compiled when
2625 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2626 the self-tests were still using deprecated key-generation functions so
2627 these have been updated also.
2630 *) Reorganise PKCS#7 code to separate the digest location functionality
2631 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2632 New function PKCS7_set_digest() to set the digest type for PKCS#7
2633 digestedData type. Add additional code to correctly generate the
2634 digestedData type and add support for this type in PKCS7 initialization
2638 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2639 structure of type "other".
2642 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2643 sure the loop does correctly stop and breaking ("division by zero")
2644 modulus operations are not performed. The (pre-generated) prime
2645 table crypto/bn/bn_prime.h was already correct, but it could not be
2646 re-generated on some platforms because of the "division by zero"
2647 situation in the script.
2648 [Ralf S. Engelschall]
2650 *) Update support for ECC-based TLS ciphersuites according to
2651 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2652 SHA-1 now is only used for "small" curves (where the
2653 representation of a field element takes up to 24 bytes); for
2654 larger curves, the field element resulting from ECDH is directly
2655 used as premaster secret.
2656 [Douglas Stebila (Sun Microsystems Laboratories)]
2658 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2659 curve secp160r1 to the tests.
2660 [Douglas Stebila (Sun Microsystems Laboratories)]
2662 *) Add the possibility to load symbols globally with DSO.
2663 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2665 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2666 control of the error stack.
2669 *) Add support for STORE in ENGINE.
2672 *) Add the STORE type. The intention is to provide a common interface
2673 to certificate and key stores, be they simple file-based stores, or
2674 HSM-type store, or LDAP stores, or...
2675 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2678 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2679 pass a list of arguments to any function as well as provide a way
2680 for a function to pass data back to the caller.
2683 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2684 works like BUF_strdup() but can be used to duplicate a portion of
2685 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2689 *) Add the function sk_find_ex() which works like sk_find(), but will
2690 return an index to an element even if an exact match couldn't be
2691 found. The index is guaranteed to point at the element where the
2692 searched-for key would be inserted to preserve sorting order.
2695 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2696 takes an extra flags argument for optional functionality. Currently,
2697 the following flags are defined:
2699 OBJ_BSEARCH_VALUE_ON_NOMATCH
2700 This one gets OBJ_bsearch_ex() to return a pointer to the first
2701 element where the comparing function returns a negative or zero
2704 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2705 This one gets OBJ_bsearch_ex() to return a pointer to the first
2706 element where the comparing function returns zero. This is useful
2707 if there are more than one element where the comparing function
2711 *) Make it possible to create self-signed certificates with 'openssl ca'
2712 in such a way that the self-signed certificate becomes part of the
2713 CA database and uses the same mechanisms for serial number generation
2714 as all other certificate signing. The new flag '-selfsign' enables
2715 this functionality. Adapt CA.sh and CA.pl.in.
2718 *) Add functionality to check the public key of a certificate request
2719 against a given private. This is useful to check that a certificate
2720 request can be signed by that key (self-signing).
2723 *) Make it possible to have multiple active certificates with the same
2724 subject in the CA index file. This is done only if the keyword
2725 'unique_subject' is set to 'no' in the main CA section (default
2726 if 'CA_default') of the configuration file. The value is saved
2727 with the database itself in a separate index attribute file,
2728 named like the index file with '.attr' appended to the name.
2731 *) Generate muti valued AVAs using '+' notation in config files for
2735 *) Support for nameConstraints certificate extension.
2738 *) Support for policyConstraints certificate extension.
2741 *) Support for policyMappings certificate extension.
2744 *) Make sure the default DSA_METHOD implementation only uses its
2745 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2746 and change its own handlers to be NULL so as to remove unnecessary
2747 indirection. This lets alternative implementations fallback to the
2748 default implementation more easily.
2751 *) Support for directoryName in GeneralName related extensions
2755 *) Make it possible to link applications using Makefile.shared.
2756 Make that possible even when linking against static libraries!
2759 *) Support for single pass processing for S/MIME signing. This now
2760 means that S/MIME signing can be done from a pipe, in addition
2761 cleartext signing (multipart/signed type) is effectively streaming
2762 and the signed data does not need to be all held in memory.
2764 This is done with a new flag PKCS7_STREAM. When this flag is set
2765 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2766 is done after the data is output (and digests calculated) in
2767 SMIME_write_PKCS7().
2770 *) Add full support for -rpath/-R, both in shared libraries and
2771 applications, at least on the platforms where it's known how
2775 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2776 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2777 will now compute a table of multiples of the generator that
2778 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2779 faster (notably in the case of a single point multiplication,
2780 scalar * generator).
2781 [Nils Larsch, Bodo Moeller]
2783 *) IPv6 support for certificate extensions. The various extensions
2784 which use the IP:a.b.c.d can now take IPv6 addresses using the
2785 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2789 *) Added an ENGINE that implements RSA by performing private key
2790 exponentiations with the GMP library. The conversions to and from
2791 GMP's mpz_t format aren't optimised nor are any montgomery forms
2792 cached, and on x86 it appears OpenSSL's own performance has caught up.
2793 However there are likely to be other architectures where GMP could
2794 provide a boost. This ENGINE is not built in by default, but it can be
2795 specified at Configure time and should be accompanied by the necessary
2796 linker additions, eg;
2797 ./config -DOPENSSL_USE_GMP -lgmp
2800 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2801 testing availability of engines with "-t" - the old behaviour is
2802 produced by increasing the feature's verbosity with "-tt".
2805 *) ECDSA routines: under certain error conditions uninitialized BN objects
2806 could be freed. Solution: make sure initialization is performed early
2807 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2811 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2812 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2813 software implementations. For DSA and DH, parameter generation can
2814 also be overriden by providing the appropriate method callbacks.
2817 *) Change the "progress" mechanism used in key-generation and
2818 primality testing to functions that take a new BN_GENCB pointer in
2819 place of callback/argument pairs. The new API functions have "_ex"
2820 postfixes and the older functions are reimplemented as wrappers for
2821 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2822 declarations of the old functions to help (graceful) attempts to
2823 migrate to the new functions. Also, the new key-generation API
2824 functions operate on a caller-supplied key-structure and return
2825 success/failure rather than returning a key or NULL - this is to
2826 help make "keygen" another member function of RSA_METHOD etc.
2828 Example for using the new callback interface:
2830 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2834 BN_GENCB_set(&my_cb, my_callback, my_arg);
2836 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2837 /* For the meaning of a, b in calls to my_callback(), see the
2838 * documentation of the function that calls the callback.
2839 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2840 * my_callback should return 1 if it wants BN_is_prime_ex()
2841 * to continue, or 0 to stop.
2846 *) Change the ZLIB compression method to be stateful, and make it
2847 available to TLS with the number defined in
2848 draft-ietf-tls-compression-04.txt.
2851 *) Add the ASN.1 structures and functions for CertificatePair, which
2852 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2854 CertificatePair ::= SEQUENCE {
2855 forward [0] Certificate OPTIONAL,
2856 reverse [1] Certificate OPTIONAL,
2857 -- at least one of the pair shall be present -- }
2859 Also implement the PEM functions to read and write certificate
2860 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2862 This needed to be defined, mostly for the sake of the LDAP
2863 attribute crossCertificatePair, but may prove useful elsewhere as
2867 *) Make it possible to inhibit symlinking of shared libraries in
2868 Makefile.shared, for Cygwin's sake.
2871 *) Extend the BIGNUM API by creating a function
2872 void BN_set_negative(BIGNUM *a, int neg);
2873 and a macro that behave like
2874 int BN_is_negative(const BIGNUM *a);
2876 to avoid the need to access 'a->neg' directly in applications.
2879 *) Implement fast modular reduction for pseudo-Mersenne primes
2880 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2881 EC_GROUP_new_curve_GFp() will now automatically use this
2883 [Nils Larsch <nla@trustcenter.de>]
2885 *) Add new lock type (CRYPTO_LOCK_BN).
2888 *) Change the ENGINE framework to automatically load engines
2889 dynamically from specific directories unless they could be
2890 found to already be built in or loaded. Move all the
2891 current engines except for the cryptodev one to a new
2893 The engines in engines/ are built as shared libraries if
2894 the "shared" options was given to ./Configure or ./config.
2895 Otherwise, they are inserted in libcrypto.a.
2896 /usr/local/ssl/engines is the default directory for dynamic
2897 engines, but that can be overriden at configure time through
2898 the usual use of --prefix and/or --openssldir, and at run
2899 time with the environment variable OPENSSL_ENGINES.
2900 [Geoff Thorpe and Richard Levitte]
2902 *) Add Makefile.shared, a helper makefile to build shared
2903 libraries. Addapt Makefile.org.
2906 *) Add version info to Win32 DLLs.
2907 [Peter 'Luna' Runestig" <peter@runestig.com>]
2909 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2910 can be added using this API to created arbitrary PKCS#12
2911 files while avoiding the low level API.
2913 New options to PKCS12_create(), key or cert can be NULL and
2914 will then be omitted from the output file. The encryption
2915 algorithm NIDs can be set to -1 for no encryption, the mac
2916 iteration count can be set to 0 to omit the mac.
2918 Enhance pkcs12 utility by making the -nokeys and -nocerts
2919 options work when creating a PKCS#12 file. New option -nomac
2920 to omit the mac, NONE can be set for an encryption algorithm.
2921 New code is modified to use the enhanced PKCS12_create()
2922 instead of the low level API.
2925 *) Extend ASN1 encoder to support indefinite length constructed
2926 encoding. This can output sequences tags and octet strings in
2927 this form. Modify pk7_asn1.c to support indefinite length
2928 encoding. This is experimental and needs additional code to
2929 be useful, such as an ASN1 bio and some enhanced streaming
2932 Extend template encode functionality so that tagging is passed
2933 down to the template encoder.
2936 *) Let 'openssl req' fail if an argument to '-newkey' is not
2937 recognized instead of using RSA as a default.
2940 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2941 As these are not official, they are not included in "ALL";
2942 the "ECCdraft" ciphersuite group alias can be used to select them.
2943 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2945 *) Add ECDH engine support.
2946 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2948 *) Add ECDH in new directory crypto/ecdh/.
2949 [Douglas Stebila (Sun Microsystems Laboratories)]
2951 *) Let BN_rand_range() abort with an error after 100 iterations
2952 without success (which indicates a broken PRNG).
2955 *) Change BN_mod_sqrt() so that it verifies that the input value
2956 is really the square of the return value. (Previously,
2957 BN_mod_sqrt would show GIGO behaviour.)
2960 *) Add named elliptic curves over binary fields from X9.62, SECG,
2961 and WAP/WTLS; add OIDs that were still missing.
2963 [Sheueling Chang Shantz and Douglas Stebila
2964 (Sun Microsystems Laboratories)]
2966 *) Extend the EC library for elliptic curves over binary fields
2967 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2970 EC_GF2m_simple_method
2974 EC_GROUP_new_curve_GF2m
2975 EC_GROUP_set_curve_GF2m
2976 EC_GROUP_get_curve_GF2m
2977 EC_POINT_set_affine_coordinates_GF2m
2978 EC_POINT_get_affine_coordinates_GF2m
2979 EC_POINT_set_compressed_coordinates_GF2m
2981 Point compression for binary fields is disabled by default for
2982 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2985 As binary polynomials are represented as BIGNUMs, various members
2986 of the EC_GROUP and EC_POINT data structures can be shared
2987 between the implementations for prime fields and binary fields;
2988 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2989 are essentially identical to their ..._GFp counterparts.
2990 (For simplicity, the '..._GFp' prefix has been dropped from
2991 various internal method names.)
2993 An internal 'field_div' method (similar to 'field_mul' and
2994 'field_sqr') has been added; this is used only for binary fields.
2996 [Sheueling Chang Shantz and Douglas Stebila
2997 (Sun Microsystems Laboratories)]
2999 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3000 through methods ('mul', 'precompute_mult').
3002 The generic implementations (now internally called 'ec_wNAF_mul'
3003 and 'ec_wNAF_precomputed_mult') remain the default if these
3004 methods are undefined.
3006 [Sheueling Chang Shantz and Douglas Stebila
3007 (Sun Microsystems Laboratories)]
3009 *) New function EC_GROUP_get_degree, which is defined through
3010 EC_METHOD. For curves over prime fields, this returns the bit
3011 length of the modulus.
3013 [Sheueling Chang Shantz and Douglas Stebila
3014 (Sun Microsystems Laboratories)]
3016 *) New functions EC_GROUP_dup, EC_POINT_dup.
3017 (These simply call ..._new and ..._copy).
3019 [Sheueling Chang Shantz and Douglas Stebila
3020 (Sun Microsystems Laboratories)]
3022 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3023 Polynomials are represented as BIGNUMs (where the sign bit is not
3024 used) in the following functions [macros]:
3027 BN_GF2m_sub [= BN_GF2m_add]
3028 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3029 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3030 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3032 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3033 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3034 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3035 BN_GF2m_cmp [= BN_ucmp]
3037 (Note that only the 'mod' functions are actually for fields GF(2^m).
3038 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3040 For some functions, an the irreducible polynomial defining a
3041 field can be given as an 'unsigned int[]' with strictly
3042 decreasing elements giving the indices of those bits that are set;
3043 i.e., p[] represents the polynomial
3044 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3046 p[0] > p[1] > ... > p[k] = 0.
3047 This applies to the following functions:
3052 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3053 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3055 BN_GF2m_mod_sqrt_arr
3056 BN_GF2m_mod_solve_quad_arr
3060 Conversion can be performed by the following functions:
3065 bntest.c has additional tests for binary polynomial arithmetic.
3067 Two implementations for BN_GF2m_mod_div() are available.
3068 The default algorithm simply uses BN_GF2m_mod_inv() and
3069 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3070 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3071 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3073 [Sheueling Chang Shantz and Douglas Stebila
3074 (Sun Microsystems Laboratories)]
3076 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3077 functionality is disabled at compile-time.
3078 [Douglas Stebila <douglas.stebila@sun.com>]
3080 *) Change default behaviour of 'openssl asn1parse' so that more
3081 information is visible when viewing, e.g., a certificate:
3083 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3084 mode the content of non-printable OCTET STRINGs is output in a
3085 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3086 avoid the appearance of a printable string.
3087 [Nils Larsch <nla@trustcenter.de>]
3089 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3091 EC_GROUP_set_asn1_flag()
3092 EC_GROUP_get_asn1_flag()
3093 EC_GROUP_set_point_conversion_form()
3094 EC_GROUP_get_point_conversion_form()
3095 These control ASN1 encoding details:
3096 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3097 has been set to OPENSSL_EC_NAMED_CURVE.
3098 - Points are encoded in uncompressed form by default; options for
3099 asn1_for are as for point2oct, namely
3100 POINT_CONVERSION_COMPRESSED
3101 POINT_CONVERSION_UNCOMPRESSED
3102 POINT_CONVERSION_HYBRID
3104 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3107 EC_GROUP_get0_seed()
3108 EC_GROUP_get_seed_len()
3109 This is used only for ASN1 purposes (so far).
3110 [Nils Larsch <nla@trustcenter.de>]
3112 *) Add 'field_type' member to EC_METHOD, which holds the NID
3113 of the appropriate field type OID. The new function
3114 EC_METHOD_get_field_type() returns this value.
3115 [Nils Larsch <nla@trustcenter.de>]
3120 EC_POINT_point2hex()
3121 EC_POINT_hex2point()
3122 providing useful interfaces to EC_POINT_point2oct() and
3123 EC_POINT_oct2point().
3124 [Nils Larsch <nla@trustcenter.de>]
3126 *) Change internals of the EC library so that the functions
3127 EC_GROUP_set_generator()
3128 EC_GROUP_get_generator()
3129 EC_GROUP_get_order()
3130 EC_GROUP_get_cofactor()
3131 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3132 to methods, which would lead to unnecessary code duplication when
3133 adding different types of curves.
3134 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3136 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3137 arithmetic, and such that modified wNAFs are generated
3138 (which avoid length expansion in many cases).
3141 *) Add a function EC_GROUP_check_discriminant() (defined via
3142 EC_METHOD) that verifies that the curve discriminant is non-zero.
3144 Add a function EC_GROUP_check() that makes some sanity tests
3145 on a EC_GROUP, its generator and order. This includes
3146 EC_GROUP_check_discriminant().
3147 [Nils Larsch <nla@trustcenter.de>]
3149 *) Add ECDSA in new directory crypto/ecdsa/.
3151 Add applications 'openssl ecparam' and 'openssl ecdsa'
3152 (these are based on 'openssl dsaparam' and 'openssl dsa').
3154 ECDSA support is also included in various other files across the
3155 library. Most notably,
3156 - 'openssl req' now has a '-newkey ecdsa:file' option;
3157 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3158 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3159 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3160 them suitable for ECDSA where domain parameters must be
3161 extracted before the specific public key;
3162 - ECDSA engine support has been added.
3163 [Nils Larsch <nla@trustcenter.de>]
3165 *) Include some named elliptic curves, and add OIDs from X9.62,
3166 SECG, and WAP/WTLS. Each curve can be obtained from the new
3168 EC_GROUP_new_by_curve_name(),
3169 and the list of available named curves can be obtained with
3170 EC_get_builtin_curves().
3171 Also add a 'curve_name' member to EC_GROUP objects, which can be
3173 EC_GROUP_set_curve_name()
3174 EC_GROUP_get_curve_name()
3175 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3177 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3178 was actually never needed) and in BN_mul(). The removal in BN_mul()
3179 required a small change in bn_mul_part_recursive() and the addition
3180 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3181 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3182 bn_sub_words() and bn_add_words() except they take arrays with
3186 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3188 *) Cleanse PEM buffers before freeing them since they may contain
3190 [Benjamin Bennett <ben@psc.edu>]
3192 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3193 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3194 authentication-only ciphersuites.
3197 *) Since AES128 and AES256 share a single mask bit in the logic of
3198 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3199 kludge to work properly if AES128 is available and AES256 isn't.
3202 *) Expand security boundary to match 1.1.1 module.
3205 *) Remove redundant features: hash file source, editing of test vectors
3206 modify fipsld to use external fips_premain.c signature.
3209 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3210 run algorithm test programs.
3213 *) Make algorithm test programs more tolerant of whitespace.
3216 *) Have SSL/TLS server implementation tolerate "mismatched" record
3217 protocol version while receiving ClientHello even if the
3218 ClientHello is fragmented. (The server can't insist on the
3219 particular protocol version it has chosen before the ServerHello
3220 message has informed the client about his choice.)
3223 *) Load error codes if they are not already present instead of using a
3224 static variable. This allows them to be cleanly unloaded and reloaded.
3227 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3229 *) Introduce limits to prevent malicious keys being able to
3230 cause a denial of service. (CVE-2006-2940)
3231 [Steve Henson, Bodo Moeller]
3233 *) Fix ASN.1 parsing of certain invalid structures that can result
3234 in a denial of service. (CVE-2006-2937) [Steve Henson]
3236 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3237 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3239 *) Fix SSL client code which could crash if connecting to a
3240 malicious SSLv2 server. (CVE-2006-4343)
3241 [Tavis Ormandy and Will Drewry, Google Security Team]
3243 *) Change ciphersuite string processing so that an explicit
3244 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3245 will no longer include "AES128-SHA"), and any other similar
3246 ciphersuite (same bitmap) from *other* protocol versions (so that
3247 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3248 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3249 changes from 0.9.8b and 0.9.8d.
3252 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3254 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3255 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3257 *) Change the Unix randomness entropy gathering to use poll() when
3258 possible instead of select(), since the latter has some
3259 undesirable limitations.
3260 [Darryl Miles via Richard Levitte and Bodo Moeller]
3262 *) Disable rogue ciphersuites:
3264 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3265 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3266 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3268 The latter two were purportedly from
3269 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3272 Also deactive the remaining ciphersuites from
3273 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3274 unofficial, and the ID has long expired.
3277 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3278 dual-core machines) and other potential thread-safety issues.
3281 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3283 *) Adapt fipsld and the build system to link against the validated FIPS
3284 module in FIPS mode.
3287 *) Fixes for VC++ 2005 build under Windows.
3290 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3291 from a Windows bash shell such as MSYS. It is autodetected from the
3292 "config" script when run from a VC++ environment. Modify standard VC++
3293 build to use fipscanister.o from the GNU make build.
3296 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3298 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3299 The value now differs depending on if you build for FIPS or not.
3300 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3301 safely run with a non-FIPSed libcrypto, as it may crash because of
3302 the difference induced by this change.
3305 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3307 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3308 (part of SSL_OP_ALL). This option used to disable the
3309 countermeasure against man-in-the-middle protocol-version
3310 rollback in the SSL 2.0 server implementation, which is a bad
3311 idea. (CVE-2005-2969)
3313 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3314 for Information Security, National Institute of Advanced Industrial
3315 Science and Technology [AIST], Japan)]
3317 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3318 mainly for FIPS compliance and not fully integrated at this stage.
3321 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3322 the exponentiation using a fixed-length exponent. (Otherwise,
3323 the information leaked through timing could expose the secret key
3324 after many signatures; cf. Bleichenbacher's attack on DSA with
3328 *) Make a new fixed-window mod_exp implementation the default for
3329 RSA, DSA, and DH private-key operations so that the sequence of
3330 squares and multiplies and the memory access pattern are
3331 independent of the particular secret key. This will mitigate
3332 cache-timing and potential related attacks.
3334 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3335 and this is automatically used by BN_mod_exp_mont() if the new flag
3336 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3337 will use this BN flag for private exponents unless the flag
3338 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3339 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3341 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3343 *) Change the client implementation for SSLv23_method() and
3344 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3345 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3346 (Previously, the SSL 2.0 backwards compatible Client Hello
3347 message format would be used even with SSL_OP_NO_SSLv2.)
3350 *) Add support for smime-type MIME parameter in S/MIME messages which some
3354 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3355 a threadsafe manner. Modify rsa code to use new function and add calls
3356 to dsa and dh code (which had race conditions before).
3359 *) Include the fixed error library code in the C error file definitions
3360 instead of fixing them up at runtime. This keeps the error code
3361 structures constant.
3364 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3366 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3369 *) Fixes for newer kerberos headers. NB: the casts are needed because
3370 the 'length' field is signed on one version and unsigned on another
3371 with no (?) obvious way to tell the difference, without these VC++
3372 complains. Also the "definition" of FAR (blank) is no longer included
3373 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3374 some needed definitions.
3377 *) Undo Cygwin change.
3380 *) Added support for proxy certificates according to RFC 3820.
3381 Because they may be a security thread to unaware applications,
3382 they must be explicitely allowed in run-time. See
3383 docs/HOWTO/proxy_certificates.txt for further information.
3386 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3388 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3389 server and client random values. Previously
3390 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3391 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3393 This change has negligible security impact because:
3395 1. Server and client random values still have 24 bytes of pseudo random
3398 2. Server and client random values are sent in the clear in the initial
3401 3. The master secret is derived using the premaster secret (48 bytes in
3402 size for static RSA ciphersuites) as well as client server and random
3405 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3408 [Stephen Henson, reported by UK NISCC]
3410 *) Use Windows randomness collection on Cygwin.
3413 *) Fix hang in EGD/PRNGD query when communication socket is closed
3414 prematurely by EGD/PRNGD.
3415 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3417 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3420 *) Back-port of selected performance improvements from development
3421 branch, as well as improved support for PowerPC platforms.
3424 *) Add lots of checks for memory allocation failure, error codes to indicate
3425 failure and freeing up memory if a failure occurs.
3426 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3428 *) Add new -passin argument to dgst.
3431 *) Perform some character comparisons of different types in X509_NAME_cmp:
3432 this is needed for some certificates that reencode DNs into UTF8Strings
3433 (in violation of RFC3280) and can't or wont issue name rollover
3437 *) Make an explicit check during certificate validation to see that
3438 the CA setting in each certificate on the chain is correct. As a
3439 side effect always do the following basic checks on extensions,
3440 not just when there's an associated purpose to the check:
3442 - if there is an unhandled critical extension (unless the user
3443 has chosen to ignore this fault)
3444 - if the path length has been exceeded (if one is set at all)
3445 - that certain extensions fit the associated purpose (if one has
3449 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3451 *) Avoid a race condition when CRLs are checked in a multi threaded
3452 environment. This would happen due to the reordering of the revoked
3453 entries during signature checking and serial number lookup. Now the
3454 encoding is cached and the serial number sort performed under a lock.
3455 Add new STACK function sk_is_sorted().
3458 *) Add Delta CRL to the extension code.
3461 *) Various fixes to s3_pkt.c so alerts are sent properly.
3462 [David Holmes <d.holmes@f5.com>]
3464 *) Reduce the chances of duplicate issuer name and serial numbers (in
3465 violation of RFC3280) using the OpenSSL certificate creation utilities.
3466 This is done by creating a random 64 bit value for the initial serial
3467 number when a serial number file is created or when a self signed
3468 certificate is created using 'openssl req -x509'. The initial serial
3469 number file is created using 'openssl x509 -next_serial' in CA.pl
3470 rather than being initialized to 1.
3473 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3475 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3476 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3477 [Joe Orton, Steve Henson]
3479 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3481 [Joe Orton, Steve Henson]
3483 *) Make it possible to have multiple active certificates with the same
3484 subject in the CA index file. This is done only if the keyword
3485 'unique_subject' is set to 'no' in the main CA section (default
3486 if 'CA_default') of the configuration file. The value is saved
3487 with the database itself in a separate index attribute file,
3488 named like the index file with '.attr' appended to the name.
3491 *) X509 verify fixes. Disable broken certificate workarounds when
3492 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3493 keyUsage extension present. Don't accept CRLs with unhandled critical
3494 extensions: since verify currently doesn't process CRL extensions this
3495 rejects a CRL with *any* critical extensions. Add new verify error codes
3499 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3500 A clarification of RFC2560 will require the use of OCTET STRINGs and
3501 some implementations cannot handle the current raw format. Since OpenSSL
3502 copies and compares OCSP nonces as opaque blobs without any attempt at
3503 parsing them this should not create any compatibility issues.
3506 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3507 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3508 this HMAC (and other) operations are several times slower than OpenSSL
3512 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3513 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3515 *) Use the correct content when signing type "other".
3518 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3520 *) Fix various bugs revealed by running the NISCC test suite:
3522 Stop out of bounds reads in the ASN1 code when presented with
3523 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3525 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3527 If verify callback ignores invalid public key errors don't try to check
3528 certificate signature with the NULL public key.
3532 *) New -ignore_err option in ocsp application to stop the server
3533 exiting on the first error in a request.
3536 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3537 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3541 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3542 extra data after the compression methods not only for TLS 1.0
3543 but also for SSL 3.0 (as required by the specification).
3544 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3546 *) Change X509_certificate_type() to mark the key as exported/exportable
3547 when it's 512 *bits* long, not 512 bytes.
3550 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3551 blocks during encryption.
3554 *) Various fixes to base64 BIO and non blocking I/O. On write
3555 flushes were not handled properly if the BIO retried. On read
3556 data was not being buffered properly and had various logic bugs.
3557 This also affects blocking I/O when the data being decoded is a
3561 *) Various S/MIME bugfixes and compatibility changes:
3562 output correct application/pkcs7 MIME type if
3563 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3564 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3565 of files as .eml work). Correctly handle very long lines in MIME
3569 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3571 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3572 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3573 a protocol version number mismatch like a decryption error
3574 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3577 *) Turn on RSA blinding by default in the default implementation
3578 to avoid a timing attack. Applications that don't want it can call
3579 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3580 They would be ill-advised to do so in most cases.
3581 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3583 *) Change RSA blinding code so that it works when the PRNG is not
3584 seeded (in this case, the secret RSA exponent is abused as
3585 an unpredictable seed -- if it is not unpredictable, there
3586 is no point in blinding anyway). Make RSA blinding thread-safe
3587 by remembering the creator's thread ID in rsa->blinding and
3588 having all other threads use local one-time blinding factors
3589 (this requires more computation than sharing rsa->blinding, but
3590 avoids excessive locking; and if an RSA object is not shared
3591 between threads, blinding will still be very fast).
3594 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3595 ENGINE as defaults for all supported algorithms irrespective of
3596 the 'flags' parameter. 'flags' is now honoured, so applications
3597 should make sure they are passing it correctly.
3600 *) Target "mingw" now allows native Windows code to be generated in
3601 the Cygwin environment as well as with the MinGW compiler.
3604 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3606 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3607 via timing by performing a MAC computation even if incorrrect
3608 block cipher padding has been found. This is a countermeasure
3609 against active attacks where the attacker has to distinguish
3610 between bad padding and a MAC verification error. (CVE-2003-0078)
3612 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3613 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3614 Martin Vuagnoux (EPFL, Ilion)]
3616 *) Make the no-err option work as intended. The intention with no-err
3617 is not to have the whole error stack handling routines removed from
3618 libcrypto, it's only intended to remove all the function name and
3619 reason texts, thereby removing some of the footprint that may not
3620 be interesting if those errors aren't displayed anyway.
3622 NOTE: it's still possible for any application or module to have it's
3623 own set of error texts inserted. The routines are there, just not
3624 used by default when no-err is given.
3627 *) Add support for FreeBSD on IA64.
3628 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3630 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3631 Kerberos function mit_des_cbc_cksum(). Before this change,
3632 the value returned by DES_cbc_cksum() was like the one from
3633 mit_des_cbc_cksum(), except the bytes were swapped.
3634 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3636 *) Allow an application to disable the automatic SSL chain building.
3637 Before this a rather primitive chain build was always performed in
3638 ssl3_output_cert_chain(): an application had no way to send the
3639 correct chain if the automatic operation produced an incorrect result.
3641 Now the chain builder is disabled if either:
3643 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3645 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3647 The reasoning behind this is that an application would not want the
3648 auto chain building to take place if extra chain certificates are
3649 present and it might also want a means of sending no additional
3650 certificates (for example the chain has two certificates and the
3654 *) Add the possibility to build without the ENGINE framework.
3655 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3657 *) Under Win32 gmtime() can return NULL: check return value in
3658 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3661 *) DSA routines: under certain error conditions uninitialized BN objects
3662 could be freed. Solution: make sure initialization is performed early
3663 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3664 Nils Larsch <nla@trustcenter.de> via PR#459)
3667 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3668 checked on reconnect on the client side, therefore session resumption
3669 could still fail with a "ssl session id is different" error. This
3670 behaviour is masked when SSL_OP_ALL is used due to
3671 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3672 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3673 followup to PR #377.
3676 *) IA-32 assembler support enhancements: unified ELF targets, support
3677 for SCO/Caldera platforms, fix for Cygwin shared build.
3680 *) Add support for FreeBSD on sparc64. As a consequence, support for
3681 FreeBSD on non-x86 processors is separate from x86 processors on
3682 the config script, much like the NetBSD support.
3683 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3685 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3687 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3690 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3691 code (06) was taken as the first octet of the session ID and the last
3692 octet was ignored consequently. As a result SSLv2 client side session
3693 caching could not have worked due to the session ID mismatch between
3695 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3699 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3700 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3704 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3705 seems that in spite of existing for more than a year, many application
3706 author have done nothing to provide the necessary callbacks, which
3707 means that this particular engine will not work properly anywhere.
3708 This is a very unfortunate situation which forces us, in the name
3709 of usability, to give the hw_ncipher.c a static lock, which is part
3711 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3712 appear in 0.9.8 or later. We EXPECT application authors to have
3713 dealt properly with this when 0.9.8 is released (unless we actually
3714 make such changes in the libcrypto locking code that changes will
3715 have to be made anyway).
3718 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3719 octets have been read, EOF or an error occurs. Without this change
3720 some truncated ASN1 structures will not produce an error.
3723 *) Disable Heimdal support, since it hasn't been fully implemented.
3724 Still give the possibility to force the use of Heimdal, but with
3725 warnings and a request that patches get sent to openssl-dev.
3728 *) Add the VC-CE target, introduce the WINCE sysname, and add
3729 INSTALL.WCE and appropriate conditionals to make it build.
3730 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3732 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3733 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3734 edit numbers of the version.
3735 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3737 *) Introduce safe string copy and catenation functions
3738 (BUF_strlcpy() and BUF_strlcat()).
3739 [Ben Laurie (CHATS) and Richard Levitte]
3741 *) Avoid using fixed-size buffers for one-line DNs.
3742 [Ben Laurie (CHATS)]
3744 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3745 resizing buffers containing secrets, and use where appropriate.
3746 [Ben Laurie (CHATS)]
3748 *) Avoid using fixed size buffers for configuration file location.
3749 [Ben Laurie (CHATS)]
3751 *) Avoid filename truncation for various CA files.
3752 [Ben Laurie (CHATS)]
3754 *) Use sizeof in preference to magic numbers.
3755 [Ben Laurie (CHATS)]
3757 *) Avoid filename truncation in cert requests.
3758 [Ben Laurie (CHATS)]
3760 *) Add assertions to check for (supposedly impossible) buffer
3762 [Ben Laurie (CHATS)]
3764 *) Don't cache truncated DNS entries in the local cache (this could
3765 potentially lead to a spoofing attack).
3766 [Ben Laurie (CHATS)]
3768 *) Fix various buffers to be large enough for hex/decimal
3769 representations in a platform independent manner.
3770 [Ben Laurie (CHATS)]
3772 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3773 resizing buffers containing secrets, and use where appropriate.
3774 [Ben Laurie (CHATS)]
3776 *) Add BIO_indent() to avoid much slightly worrying code to do
3778 [Ben Laurie (CHATS)]
3780 *) Convert sprintf()/BIO_puts() to BIO_printf().
3781 [Ben Laurie (CHATS)]
3783 *) buffer_gets() could terminate with the buffer only half
3785 [Ben Laurie (CHATS)]
3787 *) Add assertions to prevent user-supplied crypto functions from
3788 overflowing internal buffers by having large block sizes, etc.
3789 [Ben Laurie (CHATS)]
3791 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3793 [Ben Laurie (CHATS)]
3795 *) Eliminate unused copy of key in RC4.
3796 [Ben Laurie (CHATS)]
3798 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3799 [Ben Laurie (CHATS)]
3801 *) Fix off-by-one error in EGD path.
3802 [Ben Laurie (CHATS)]
3804 *) If RANDFILE path is too long, ignore instead of truncating.
3805 [Ben Laurie (CHATS)]
3807 *) Eliminate unused and incorrectly sized X.509 structure
3809 [Ben Laurie (CHATS)]
3811 *) Eliminate unused and dangerous function knumber().
3812 [Ben Laurie (CHATS)]
3814 *) Eliminate unused and dangerous structure, KSSL_ERR.
3815 [Ben Laurie (CHATS)]
3817 *) Protect against overlong session ID context length in an encoded
3818 session object. Since these are local, this does not appear to be
3820 [Ben Laurie (CHATS)]
3822 *) Change from security patch (see 0.9.6e below) that did not affect
3823 the 0.9.6 release series:
3825 Remote buffer overflow in SSL3 protocol - an attacker could
3826 supply an oversized master key in Kerberos-enabled versions.
3828 [Ben Laurie (CHATS)]
3830 *) Change the SSL kerb5 codes to match RFC 2712.
3833 *) Make -nameopt work fully for req and add -reqopt switch.
3834 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3836 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3837 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3839 *) Make sure tests can be performed even if the corresponding algorithms
3840 have been removed entirely. This was also the last step to make
3841 OpenSSL compilable with DJGPP under all reasonable conditions.
3842 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3844 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3845 to allow version independent disabling of normally unselected ciphers,
3846 which may be activated as a side-effect of selecting a single cipher.
3848 (E.g., cipher list string "RSA" enables ciphersuites that are left
3849 out of "ALL" because they do not provide symmetric encryption.
3850 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3851 [Lutz Jaenicke, Bodo Moeller]
3853 *) Add appropriate support for separate platform-dependent build
3854 directories. The recommended way to make a platform-dependent
3855 build directory is the following (tested on Linux), maybe with
3858 # Place yourself outside of the OpenSSL source tree. In
3859 # this example, the environment variable OPENSSL_SOURCE
3860 # is assumed to contain the absolute OpenSSL source directory.
3861 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3862 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3863 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3864 mkdir -p `dirname $F`
3865 ln -s $OPENSSL_SOURCE/$F $F
3868 To be absolutely sure not to disturb the source tree, a "make clean"
3869 is a good thing. If it isn't successfull, don't worry about it,
3870 it probably means the source directory is very clean.
3873 *) Make sure any ENGINE control commands make local copies of string
3874 pointers passed to them whenever necessary. Otherwise it is possible
3875 the caller may have overwritten (or deallocated) the original string
3876 data when a later ENGINE operation tries to use the stored values.
3877 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3879 *) Improve diagnostics in file reading and command-line digests.
3880 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3882 *) Add AES modes CFB and OFB to the object database. Correct an
3883 error in AES-CFB decryption.
3886 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3887 allows existing EVP_CIPHER_CTX structures to be reused after
3888 calling EVP_*Final(). This behaviour is used by encryption
3889 BIOs and some applications. This has the side effect that
3890 applications must explicitly clean up cipher contexts with
3891 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3894 *) Check the values of dna and dnb in bn_mul_recursive before calling
3895 bn_mul_comba (a non zero value means the a or b arrays do not contain
3896 n2 elements) and fallback to bn_mul_normal if either is not zero.
3899 *) Fix escaping of non-ASCII characters when using the -subj option
3900 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3903 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3904 form for "surname", serialNumber has no short form.
3905 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3906 therefore remove "mail" short name for "internet 7".
3907 The OID for unique identifiers in X509 certificates is
3908 x500UniqueIdentifier, not uniqueIdentifier.
3909 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3912 *) Add an "init" command to the ENGINE config module and auto initialize
3913 ENGINEs. Without any "init" command the ENGINE will be initialized
3914 after all ctrl commands have been executed on it. If init=1 the
3915 ENGINE is initailized at that point (ctrls before that point are run
3916 on the uninitialized ENGINE and after on the initialized one). If
3917 init=0 then the ENGINE will not be iniatialized at all.
3920 *) Fix the 'app_verify_callback' interface so that the user-defined
3921 argument is actually passed to the callback: In the
3922 SSL_CTX_set_cert_verify_callback() prototype, the callback
3923 declaration has been changed from
3926 int (*cb)(X509_STORE_CTX *,void *);
3927 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3928 i=s->ctx->app_verify_callback(&ctx)
3929 has been changed into
3930 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3932 To update applications using SSL_CTX_set_cert_verify_callback(),
3933 a dummy argument can be added to their callback functions.
3934 [D. K. Smetters <smetters@parc.xerox.com>]
3936 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3937 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3939 *) Add and OPENSSL_LOAD_CONF define which will cause
3940 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3941 This allows older applications to transparently support certain
3942 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3943 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3944 load the config file and OPENSSL_add_all_algorithms_conf() which will
3945 always load it have also been added.
3948 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3949 Adjust NIDs and EVP layer.
3950 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3952 *) Config modules support in openssl utility.
3954 Most commands now load modules from the config file,
3955 though in a few (such as version) this isn't done
3956 because it couldn't be used for anything.
3958 In the case of ca and req the config file used is
3959 the same as the utility itself: that is the -config
3960 command line option can be used to specify an
3964 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3965 use "openssl_conf" if filename is NULL use default openssl config file.
3968 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3969 config section name. Add a new flag to tolerate a missing config file
3970 and move code to CONF_modules_load_file().
3973 *) Support for crypto accelerator cards from Accelerated Encryption
3974 Processing, www.aep.ie. (Use engine 'aep')
3975 The support was copied from 0.9.6c [engine] and adapted/corrected
3976 to work with the new engine framework.
3977 [AEP Inc. and Richard Levitte]
3979 *) Support for SureWare crypto accelerator cards from Baltimore
3980 Technologies. (Use engine 'sureware')
3981 The support was copied from 0.9.6c [engine] and adapted
3982 to work with the new engine framework.
3985 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3986 make the newer ENGINE framework commands for the CHIL engine work.
3987 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3989 *) Make it possible to produce shared libraries on ReliantUNIX.
3990 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3992 *) Add the configuration target debug-linux-ppro.
3993 Make 'openssl rsa' use the general key loading routines
3994 implemented in apps.c, and make those routines able to
3995 handle the key format FORMAT_NETSCAPE and the variant
3997 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3999 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4000 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4002 *) Add -keyform to rsautl, and document -engine.
4003 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4005 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4006 BIO_R_NO_SUCH_FILE error code rather than the generic
4007 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4010 *) Add new functions
4012 ERR_peek_last_error_line
4013 ERR_peek_last_error_line_data.
4014 These are similar to
4017 ERR_peek_error_line_data,
4018 but report on the latest error recorded rather than the first one
4019 still in the error queue.
4020 [Ben Laurie, Bodo Moeller]
4022 *) default_algorithms option in ENGINE config module. This allows things
4024 default_algorithms = ALL
4025 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4028 *) Prelminary ENGINE config module.
4031 *) New experimental application configuration code.
4034 *) Change the AES code to follow the same name structure as all other
4035 symmetric ciphers, and behave the same way. Move everything to
4036 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4037 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4039 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4040 [Ben Laurie and Theo de Raadt]
4042 *) Add option to output public keys in req command.
4043 [Massimiliano Pala madwolf@openca.org]
4045 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4046 (up to about 10% better than before for P-192 and P-224).
4049 *) New functions/macros
4051 SSL_CTX_set_msg_callback(ctx, cb)
4052 SSL_CTX_set_msg_callback_arg(ctx, arg)
4053 SSL_set_msg_callback(ssl, cb)
4054 SSL_set_msg_callback_arg(ssl, arg)
4056 to request calling a callback function
4058 void cb(int write_p, int version, int content_type,
4059 const void *buf, size_t len, SSL *ssl, void *arg)
4061 whenever a protocol message has been completely received
4062 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4063 protocol version according to which the SSL library interprets
4064 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4065 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4066 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4067 specification (change_cipher_spec(20), alert(21), handshake(22)).
4068 'buf' and 'len' point to the actual message, 'ssl' to the
4069 SSL object, and 'arg' is the application-defined value set by
4070 SSL[_CTX]_set_msg_callback_arg().
4072 'openssl s_client' and 'openssl s_server' have new '-msg' options
4073 to enable a callback that displays all protocol messages.
4076 *) Change the shared library support so shared libraries are built as
4077 soon as the corresponding static library is finished, and thereby get
4078 openssl and the test programs linked against the shared library.
4079 This still only happens when the keyword "shard" has been given to
4080 the configuration scripts.
4082 NOTE: shared library support is still an experimental thing, and
4083 backward binary compatibility is still not guaranteed.
4084 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4086 *) Add support for Subject Information Access extension.
4087 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4089 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4090 additional bytes when new memory had to be allocated, not just
4091 when reusing an existing buffer.
4094 *) New command line and configuration option 'utf8' for the req command.
4095 This allows field values to be specified as UTF8 strings.
4098 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4099 runs for the former and machine-readable output for the latter.
4102 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4103 of the e-mail address in the DN (i.e., it will go into a certificate
4104 extension only). The new configuration file option 'email_in_dn = no'
4105 has the same effect.
4106 [Massimiliano Pala madwolf@openca.org]
4108 *) Change all functions with names starting with des_ to be starting
4109 with DES_ instead. Add wrappers that are compatible with libdes,
4110 but are named _ossl_old_des_*. Finally, add macros that map the
4111 des_* symbols to the corresponding _ossl_old_des_* if libdes
4112 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4113 desired, the des_* symbols will be mapped to DES_*, with one
4116 Since we provide two compatibility mappings, the user needs to
4117 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4118 compatibility is desired. The default (i.e., when that macro
4119 isn't defined) is OpenSSL 0.9.6c compatibility.
4121 There are also macros that enable and disable the support of old
4122 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4123 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4124 are defined, the default will apply: to support the old des routines.
4126 In either case, one must include openssl/des.h to get the correct
4127 definitions. Do not try to just include openssl/des_old.h, that
4130 NOTE: This is a major break of an old API into a new one. Software
4131 authors are encouraged to switch to the DES_ style functions. Some
4132 time in the future, des_old.h and the libdes compatibility functions
4133 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4134 default), and then completely removed.
4137 *) Test for certificates which contain unsupported critical extensions.
4138 If such a certificate is found during a verify operation it is
4139 rejected by default: this behaviour can be overridden by either
4140 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4141 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4142 X509_supported_extension() has also been added which returns 1 if a
4143 particular extension is supported.
4146 *) Modify the behaviour of EVP cipher functions in similar way to digests
4147 to retain compatibility with existing code.
4150 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4151 compatibility with existing code. In particular the 'ctx' parameter does
4152 not have to be to be initialized before the call to EVP_DigestInit() and
4153 it is tidied up after a call to EVP_DigestFinal(). New function
4154 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4155 EVP_MD_CTX_copy() changed to not require the destination to be
4156 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4157 requires the destination to be valid.
4159 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4160 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4163 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4164 so that complete 'Handshake' protocol structures are kept in memory
4165 instead of overwriting 'msg_type' and 'length' with 'body' data.
4168 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4169 [Massimo Santin via Richard Levitte]
4171 *) Major restructuring to the underlying ENGINE code. This includes
4172 reduction of linker bloat, separation of pure "ENGINE" manipulation
4173 (initialisation, etc) from functionality dealing with implementations
4174 of specific crypto iterfaces. This change also introduces integrated
4175 support for symmetric ciphers and digest implementations - so ENGINEs
4176 can now accelerate these by providing EVP_CIPHER and EVP_MD
4177 implementations of their own. This is detailed in crypto/engine/README
4178 as it couldn't be adequately described here. However, there are a few
4179 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4180 were changed in the original introduction of ENGINE code have now
4181 reverted back - the hooking from this code to ENGINE is now a good
4182 deal more passive and at run-time, operations deal directly with
4183 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4184 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4185 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4186 they were not being used by the framework as there is no concept of a
4187 BIGNUM_METHOD and they could not be generalised to the new
4188 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4189 ENGINE_cpy() has been removed as it cannot be consistently defined in
4193 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4196 *) Change mkdef.pl to sort symbols that get the same entry number,
4197 and make sure the automatically generated functions ERR_load_*
4198 become part of libeay.num as well.
4201 *) New function SSL_renegotiate_pending(). This returns true once
4202 renegotiation has been requested (either SSL_renegotiate() call
4203 or HelloRequest/ClientHello receveived from the peer) and becomes
4204 false once a handshake has been completed.
4205 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4206 sends a HelloRequest, but does not ensure that a handshake takes
4207 place. SSL_renegotiate_pending() is useful for checking if the
4208 client has followed the request.)
4211 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4212 By default, clients may request session resumption even during
4213 renegotiation (if session ID contexts permit); with this option,
4214 session resumption is possible only in the first handshake.
4216 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4217 more bits available for options that should not be part of
4218 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4221 *) Add some demos for certificate and certificate request creation.
4224 *) Make maximum certificate chain size accepted from the peer application
4225 settable (SSL*_get/set_max_cert_list()), as proposed by
4226 "Douglas E. Engert" <deengert@anl.gov>.
4229 *) Add support for shared libraries for Unixware-7
4230 (Boyd Lynn Gerber <gerberb@zenez.com>).
4233 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4234 be done prior to destruction. Use this to unload error strings from
4235 ENGINEs that load their own error strings. NB: This adds two new API
4236 functions to "get" and "set" this destroy handler in an ENGINE.
4239 *) Alter all existing ENGINE implementations (except "openssl" and
4240 "openbsd") to dynamically instantiate their own error strings. This
4241 makes them more flexible to be built both as statically-linked ENGINEs
4242 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4243 Also, add stub code to each that makes building them as self-contained
4244 shared-libraries easier (see README.ENGINE).
4247 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4248 implementations into applications that are completely implemented in
4249 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4250 commands that can be used to configure what shared-library to load and
4251 to control aspects of the way it is handled. Also, made an update to
4252 the README.ENGINE file that brings its information up-to-date and
4253 provides some information and instructions on the "dynamic" ENGINE
4254 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4257 *) Make it possible to unload ranges of ERR strings with a new
4258 "ERR_unload_strings" function.
4261 *) Add a copy() function to EVP_MD.
4264 *) Make EVP_MD routines take a context pointer instead of just the
4265 md_data void pointer.
4268 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4269 that the digest can only process a single chunk of data
4270 (typically because it is provided by a piece of
4271 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4272 is only going to provide a single chunk of data, and hence the
4273 framework needn't accumulate the data for oneshot drivers.
4276 *) As with "ERR", make it possible to replace the underlying "ex_data"
4277 functions. This change also alters the storage and management of global
4278 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4279 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4280 index counters. The API functions that use this state have been changed
4281 to take a "class_index" rather than pointers to the class's local STACK
4282 and counter, and there is now an API function to dynamically create new
4283 classes. This centralisation allows us to (a) plug a lot of the
4284 thread-safety problems that existed, and (b) makes it possible to clean
4285 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4286 such data would previously have always leaked in application code and
4287 workarounds were in place to make the memory debugging turn a blind eye
4288 to it. Application code that doesn't use this new function will still
4289 leak as before, but their memory debugging output will announce it now
4290 rather than letting it slide.
4292 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4293 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4294 has a return value to indicate success or failure.
4297 *) Make it possible to replace the underlying "ERR" functions such that the
4298 global state (2 LHASH tables and 2 locks) is only used by the "default"
4299 implementation. This change also adds two functions to "get" and "set"
4300 the implementation prior to it being automatically set the first time
4301 any other ERR function takes place. Ie. an application can call "get",
4302 pass the return value to a module it has just loaded, and that module
4303 can call its own "set" function using that value. This means the
4304 module's "ERR" operations will use (and modify) the error state in the
4305 application and not in its own statically linked copy of OpenSSL code.
4308 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4309 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4310 the operation, and provides a more encapsulated way for external code
4311 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4312 to use these functions rather than manually incrementing the counts.
4314 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4317 *) Add EVP test program.
4320 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4323 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4324 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4325 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4326 These allow a CRL to be built without having to access X509_CRL fields
4327 directly. Modify 'ca' application to use new functions.
4330 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4331 bug workarounds. Rollback attack detection is a security feature.
4332 The problem will only arise on OpenSSL servers when TLSv1 is not
4333 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4334 Software authors not wanting to support TLSv1 will have special reasons
4335 for their choice and can explicitly enable this option.
4336 [Bodo Moeller, Lutz Jaenicke]
4338 *) Rationalise EVP so it can be extended: don't include a union of
4339 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4340 (similar to those existing for EVP_CIPHER_CTX).
4345 EVP_MD_CTX_init(&md); /* new function call */
4346 EVP_DigestInit(&md, EVP_sha1());
4347 EVP_DigestUpdate(&md, in, len);
4348 EVP_DigestFinal(&md, out, NULL);
4349 EVP_MD_CTX_cleanup(&md); /* new function call */
4353 *) Make DES key schedule conform to the usual scheme, as well as
4354 correcting its structure. This means that calls to DES functions
4355 now have to pass a pointer to a des_key_schedule instead of a
4356 plain des_key_schedule (which was actually always a pointer
4359 des_key_schedule ks;
4361 des_set_key_checked(..., &ks);
4362 des_ncbc_encrypt(..., &ks, ...);
4364 (Note that a later change renames 'des_...' into 'DES_...'.)
4367 *) Initial reduction of linker bloat: the use of some functions, such as
4368 PEM causes large amounts of unused functions to be linked in due to
4369 poor organisation. For example pem_all.c contains every PEM function
4370 which has a knock on effect of linking in large amounts of (unused)
4371 ASN1 code. Grouping together similar functions and splitting unrelated
4372 functions prevents this.
4375 *) Cleanup of EVP macros.
4378 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4379 correct _ecb suffix.
4382 *) Add initial OCSP responder support to ocsp application. The
4383 revocation information is handled using the text based index
4384 use by the ca application. The responder can either handle
4385 requests generated internally, supplied in files (for example
4386 via a CGI script) or using an internal minimal server.
4389 *) Add configuration choices to get zlib compression for TLS.
4392 *) Changes to Kerberos SSL for RFC 2712 compliance:
4393 1. Implemented real KerberosWrapper, instead of just using
4394 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4395 2. Implemented optional authenticator field of KerberosWrapper.
4397 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4398 and authenticator structs; see crypto/krb5/.
4400 Generalized Kerberos calls to support multiple Kerberos libraries.
4401 [Vern Staats <staatsvr@asc.hpc.mil>,
4402 Jeffrey Altman <jaltman@columbia.edu>
4403 via Richard Levitte]
4405 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4406 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4407 values for each of the key sizes rather than having just
4408 parameters (and 'speed' generating keys each time).
4411 *) Speed up EVP routines.
4414 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4415 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4416 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4417 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4419 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4420 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4421 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4424 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4426 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4429 *) Added the OS2-EMX target.
4430 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4432 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4433 to support NCONF routines in extension code. New function CONF_set_nconf()
4434 to allow functions which take an NCONF to also handle the old LHASH
4435 structure: this means that the old CONF compatible routines can be
4436 retained (in particular wrt extensions) without having to duplicate the
4437 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4440 *) Enhance the general user interface with mechanisms for inner control
4441 and with possibilities to have yes/no kind of prompts.
4444 *) Change all calls to low level digest routines in the library and
4445 applications to use EVP. Add missing calls to HMAC_cleanup() and
4446 don't assume HMAC_CTX can be copied using memcpy().
4447 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4449 *) Add the possibility to control engines through control names but with
4450 arbitrary arguments instead of just a string.
4451 Change the key loaders to take a UI_METHOD instead of a callback
4452 function pointer. NOTE: this breaks binary compatibility with earlier
4453 versions of OpenSSL [engine].
4454 Adapt the nCipher code for these new conditions and add a card insertion
4458 *) Enhance the general user interface with mechanisms to better support
4459 dialog box interfaces, application-defined prompts, the possibility
4460 to use defaults (for example default passwords from somewhere else)
4461 and interrupts/cancellations.
4464 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4465 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4468 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4469 tidy up some unnecessarily weird code in 'sk_new()').
4470 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4472 *) Change the key loading routines for ENGINEs to use the same kind
4473 callback (pem_password_cb) as all other routines that need this
4477 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4478 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4479 than this minimum value is recommended.
4482 *) New random seeder for OpenVMS, using the system process statistics
4483 that are easily reachable.
4486 *) Windows apparently can't transparently handle global
4487 variables defined in DLLs. Initialisations such as:
4489 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4491 wont compile. This is used by the any applications that need to
4492 declare their own ASN1 modules. This was fixed by adding the option
4493 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4494 needed for static libraries under Win32.
4497 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4498 setting of purpose and trust fields. New X509_STORE trust and
4499 purpose functions and tidy up setting in other SSL functions.
4502 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4503 structure. These are inherited by X509_STORE_CTX when it is
4504 initialised. This allows various defaults to be set in the
4505 X509_STORE structure (such as flags for CRL checking and custom
4506 purpose or trust settings) for functions which only use X509_STORE_CTX
4507 internally such as S/MIME.
4509 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4510 trust settings if they are not set in X509_STORE. This allows X509_STORE
4511 purposes and trust (in S/MIME for example) to override any set by default.
4513 Add command line options for CRL checking to smime, s_client and s_server
4517 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4518 are set then the CRL is looked up in the X509_STORE structure and
4519 its validity and signature checked, then if the certificate is found
4520 in the CRL the verify fails with a revoked error.
4522 Various new CRL related callbacks added to X509_STORE_CTX structure.
4524 Command line options added to 'verify' application to support this.
4526 This needs some additional work, such as being able to handle multiple
4527 CRLs with different times, extension based lookup (rather than just
4528 by subject name) and ultimately more complete V2 CRL extension
4532 *) Add a general user interface API (crypto/ui/). This is designed
4533 to replace things like des_read_password and friends (backward
4534 compatibility functions using this new API are provided).
4535 The purpose is to remove prompting functions from the DES code
4536 section as well as provide for prompting through dialog boxes in
4537 a window system and the like.
4540 *) Add "ex_data" support to ENGINE so implementations can add state at a
4541 per-structure level rather than having to store it globally.
4544 *) Make it possible for ENGINE structures to be copied when retrieved by
4545 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4546 This causes the "original" ENGINE structure to act like a template,
4547 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4548 operational state can be localised to each ENGINE structure, despite the
4549 fact they all share the same "methods". New ENGINE structures returned in
4550 this case have no functional references and the return value is the single
4551 structural reference. This matches the single structural reference returned
4552 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4556 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4557 needs to match any other type at all we need to manually clear the
4561 *) Changes to the "openssl engine" utility to include;
4562 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4563 about an ENGINE's available control commands.
4564 - executing control commands from command line arguments using the
4565 '-pre' and '-post' switches. '-post' is only used if '-t' is
4566 specified and the ENGINE is successfully initialised. The syntax for
4567 the individual commands are colon-separated, for example;
4568 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4571 *) New dynamic control command support for ENGINEs. ENGINEs can now
4572 declare their own commands (numbers), names (strings), descriptions,
4573 and input types for run-time discovery by calling applications. A
4574 subset of these commands are implicitly classed as "executable"
4575 depending on their input type, and only these can be invoked through
4576 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4577 can be based on user input, config files, etc). The distinction is
4578 that "executable" commands cannot return anything other than a boolean
4579 result and can only support numeric or string input, whereas some
4580 discoverable commands may only be for direct use through
4581 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4582 pointers, or other custom uses. The "executable" commands are to
4583 support parameterisations of ENGINE behaviour that can be
4584 unambiguously defined by ENGINEs and used consistently across any
4585 OpenSSL-based application. Commands have been added to all the
4586 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4587 control over shared-library paths without source code alterations.
4590 *) Changed all ENGINE implementations to dynamically allocate their
4591 ENGINEs rather than declaring them statically. Apart from this being
4592 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4593 this also allows the implementations to compile without using the
4594 internal engine_int.h header.
4597 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4598 'const' value. Any code that should be able to modify a RAND_METHOD
4599 should already have non-const pointers to it (ie. they should only
4600 modify their own ones).
4603 *) Made a variety of little tweaks to the ENGINE code.
4604 - "atalla" and "ubsec" string definitions were moved from header files
4605 to C code. "nuron" string definitions were placed in variables
4606 rather than hard-coded - allowing parameterisation of these values
4607 later on via ctrl() commands.
4608 - Removed unused "#if 0"'d code.
4609 - Fixed engine list iteration code so it uses ENGINE_free() to release
4610 structural references.
4611 - Constified the RAND_METHOD element of ENGINE structures.
4612 - Constified various get/set functions as appropriate and added
4613 missing functions (including a catch-all ENGINE_cpy that duplicates
4614 all ENGINE values onto a new ENGINE except reference counts/state).
4615 - Removed NULL parameter checks in get/set functions. Setting a method
4616 or function to NULL is a way of cancelling out a previously set
4617 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4618 and doesn't justify the extra error symbols and code.
4619 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4620 flags from engine_int.h to engine.h.
4621 - Changed prototypes for ENGINE handler functions (init(), finish(),
4622 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4625 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4626 to the algorithm using long division. The binary algorithm can be
4627 used only if the modulus is odd. On 32-bit systems, it is faster
4628 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4629 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4630 up to 450 bits. In 64-bit environments, the binary algorithm
4631 appears to be advantageous for much longer moduli; here we use it
4632 for moduli up to 2048 bits.
4635 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4636 could not support the combine flag in choice fields.
4639 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4640 extensions from a certificate request to the certificate.
4643 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4644 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4645 file: this allows the display of the certificate about to be
4646 signed to be customised, to allow certain fields to be included
4647 or excluded and extension details. The old system didn't display
4648 multicharacter strings properly, omitted fields not in the policy
4649 and couldn't display additional details such as extensions.
4652 *) Function EC_POINTs_mul for multiple scalar multiplication
4653 of an arbitrary number of elliptic curve points
4654 \sum scalars[i]*points[i],
4655 optionally including the generator defined for the EC_GROUP:
4656 scalar*generator + \sum scalars[i]*points[i].
4658 EC_POINT_mul is a simple wrapper function for the typical case
4659 that the point list has just one item (besides the optional
4663 *) First EC_METHODs for curves over GF(p):
4665 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4666 operations and provides various method functions that can also
4667 operate with faster implementations of modular arithmetic.
4669 EC_GFp_mont_method() reuses most functions that are part of
4670 EC_GFp_simple_method, but uses Montgomery arithmetic.
4672 [Bodo Moeller; point addition and point doubling
4673 implementation directly derived from source code provided by
4674 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4676 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4677 crypto/ec/ec_lib.c):
4679 Curves are EC_GROUP objects (with an optional group generator)
4680 based on EC_METHODs that are built into the library.
4682 Points are EC_POINT objects based on EC_GROUP objects.
4684 Most of the framework would be able to handle curves over arbitrary
4685 finite fields, but as there are no obvious types for fields other
4686 than GF(p), some functions are limited to that for now.
4689 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4690 that the file contains a complete HTTP response.
4693 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4694 change the def and num file printf format specifier from "%-40sXXX"
4695 to "%-39s XXX". The latter will always guarantee a space after the
4696 field while the former will cause them to run together if the field
4697 is 40 of more characters long.
4700 *) Constify the cipher and digest 'method' functions and structures
4701 and modify related functions to take constant EVP_MD and EVP_CIPHER
4705 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4706 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4709 *) Modify EVP_Digest*() routines so they now return values. Although the
4710 internal software routines can never fail additional hardware versions
4714 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4716 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4717 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4720 ERR_R_NESTED_ASN1_ERROR
4722 ERR_R_MISSING_ASN1_EOS
4723 were 4 .. 9, conflicting with
4724 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4726 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4727 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4729 Add new error code 'ERR_R_INTERNAL_ERROR'.
4732 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4736 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4737 sets the subject name for a new request or supersedes the
4738 subject name in a given request. Formats that can be parsed are
4739 'CN=Some Name, OU=myOU, C=IT'
4741 'CN=Some Name/OU=myOU/C=IT'.
4743 Add options '-batch' and '-verbose' to 'openssl req'.
4744 [Massimiliano Pala <madwolf@hackmasters.net>]
4746 *) Introduce the possibility to access global variables through
4747 functions on platform were that's the best way to handle exporting
4748 global variables in shared libraries. To enable this functionality,
4749 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4750 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4751 is normally done by Configure or something similar).
4753 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4754 in the source file (foo.c) like this:
4756 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4757 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4759 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4760 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4762 OPENSSL_DECLARE_GLOBAL(int,foo);
4763 #define foo OPENSSL_GLOBAL_REF(foo)
4764 OPENSSL_DECLARE_GLOBAL(double,bar);
4765 #define bar OPENSSL_GLOBAL_REF(bar)
4767 The #defines are very important, and therefore so is including the
4768 header file everywhere where the defined globals are used.
4770 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4771 of ASN.1 items, but that structure is a bit different.
4773 The largest change is in util/mkdef.pl which has been enhanced with
4774 better and easier to understand logic to choose which symbols should
4775 go into the Windows .def files as well as a number of fixes and code
4776 cleanup (among others, algorithm keywords are now sorted
4777 lexicographically to avoid constant rewrites).
4780 *) In BN_div() keep a copy of the sign of 'num' before writing the
4781 result to 'rm' because if rm==num the value will be overwritten
4782 and produce the wrong result if 'num' is negative: this caused
4783 problems with BN_mod() and BN_nnmod().
4786 *) Function OCSP_request_verify(). This checks the signature on an
4787 OCSP request and verifies the signer certificate. The signer
4788 certificate is just checked for a generic purpose and OCSP request
4792 *) Add OCSP_check_validity() function to check the validity of OCSP
4793 responses. OCSP responses are prepared in real time and may only
4794 be a few seconds old. Simply checking that the current time lies
4795 between thisUpdate and nextUpdate max reject otherwise valid responses
4796 caused by either OCSP responder or client clock inaccuracy. Instead
4797 we allow thisUpdate and nextUpdate to fall within a certain period of
4798 the current time. The age of the response can also optionally be
4799 checked. Two new options -validity_period and -status_age added to
4803 *) If signature or public key algorithm is unrecognized print out its
4804 OID rather that just UNKNOWN.
4807 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4808 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4809 ID to be generated from the issuer certificate alone which can then be
4810 passed to OCSP_id_issuer_cmp().
4813 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4814 ASN1 modules to export functions returning ASN1_ITEM pointers
4815 instead of the ASN1_ITEM structures themselves. This adds several
4816 new macros which allow the underlying ASN1 function/structure to
4817 be accessed transparently. As a result code should not use ASN1_ITEM
4818 references directly (such as &X509_it) but instead use the relevant
4819 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4820 use of the new ASN1 code on platforms where exporting structures
4821 is problematical (for example in shared libraries) but exporting
4822 functions returning pointers to structures is not.
4825 *) Add support for overriding the generation of SSL/TLS session IDs.
4826 These callbacks can be registered either in an SSL_CTX or per SSL.
4827 The purpose of this is to allow applications to control, if they wish,
4828 the arbitrary values chosen for use as session IDs, particularly as it
4829 can be useful for session caching in multiple-server environments. A
4830 command-line switch for testing this (and any client code that wishes
4831 to use such a feature) has been added to "s_server".
4832 [Geoff Thorpe, Lutz Jaenicke]
4834 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4835 of the form '#if defined(...) || defined(...) || ...' and
4836 '#if !defined(...) && !defined(...) && ...'. This also avoids
4837 the growing number of special cases it was previously handling.
4840 *) Make all configuration macros available for application by making
4841 sure they are available in opensslconf.h, by giving them names starting
4842 with "OPENSSL_" to avoid conflicts with other packages and by making
4843 sure e_os2.h will cover all platform-specific cases together with
4845 Additionally, it is now possible to define configuration/platform-
4846 specific names (called "system identities"). In the C code, these
4847 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4848 macro with the name beginning with "OPENSSL_SYS_", which is determined
4849 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4853 *) New option -set_serial to 'req' and 'x509' this allows the serial
4854 number to use to be specified on the command line. Previously self
4855 signed certificates were hard coded with serial number 0 and the
4856 CA options of 'x509' had to use a serial number in a file which was
4860 *) New options to 'ca' utility to support V2 CRL entry extensions.
4861 Currently CRL reason, invalidity date and hold instruction are
4862 supported. Add new CRL extensions to V3 code and some new objects.
4865 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4866 disable standard block padding (aka PKCS#5 padding) in the EVP
4867 API, which was previously mandatory. This means that the data is
4868 not padded in any way and so the total length much be a multiple
4869 of the block size, otherwise an error occurs.
4872 *) Initial (incomplete) OCSP SSL support.
4875 *) New function OCSP_parse_url(). This splits up a URL into its host,
4876 port and path components: primarily to parse OCSP URLs. New -url
4877 option to ocsp utility.
4880 *) New nonce behavior. The return value of OCSP_check_nonce() now
4881 reflects the various checks performed. Applications can decide
4882 whether to tolerate certain situations such as an absent nonce
4883 in a response when one was present in a request: the ocsp application
4884 just prints out a warning. New function OCSP_add1_basic_nonce()
4885 this is to allow responders to include a nonce in a response even if
4886 the request is nonce-less.
4889 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4890 skipped when using openssl x509 multiple times on a single input file,
4891 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4894 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4895 set string type: to handle setting ASN1_TIME structures. Fix ca
4896 utility to correctly initialize revocation date of CRLs.
4899 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4900 the clients preferred ciphersuites and rather use its own preferences.
4901 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4902 Internet Explorer by ensuring unchanged hash method during stepup.
4903 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4906 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4907 to aes and add a new 'exist' option to print out symbols that don't
4911 *) Additional options to ocsp utility to allow flags to be set and
4912 additional certificates supplied.
4915 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4916 OCSP client a number of certificate to only verify the response
4920 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4921 handle the new API. Currently only ECB, CBC modes supported. Add new
4924 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4925 Encryption Standard (AES) Ciphersuites for Transport Layer
4926 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4927 not enabled by default and were not part of the "ALL" ciphersuite
4928 alias because they were not yet official; they could be
4929 explicitly requested by specifying the "AESdraft" ciphersuite
4930 group alias. In the final release of OpenSSL 0.9.7, the group
4931 alias is called "AES" and is part of "ALL".)
4932 [Ben Laurie, Steve Henson, Bodo Moeller]
4934 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4935 request to response.
4938 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4939 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4940 extract information from a certificate request. OCSP_response_create()
4941 creates a response and optionally adds a basic response structure.
4942 OCSP_basic_add1_status() adds a complete single response to a basic
4943 response and returns the OCSP_SINGLERESP structure just added (to allow
4944 extensions to be included for example). OCSP_basic_add1_cert() adds a
4945 certificate to a basic response and OCSP_basic_sign() signs a basic
4946 response with various flags. New helper functions ASN1_TIME_check()
4947 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4948 (converts ASN1_TIME to GeneralizedTime).
4951 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4952 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4953 structure from a certificate. X509_pubkey_digest() digests the public_key
4954 contents: this is used in various key identifiers.
4957 *) Make sk_sort() tolerate a NULL argument.
4958 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4960 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4961 passed by the function are trusted implicitly. If any of them signed the
4962 response then it is assumed to be valid and is not verified.
4965 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4966 to data. This was previously part of the PKCS7 ASN1 code. This
4967 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4968 [Steve Henson, reported by Kenneth R. Robinette
4969 <support@securenetterm.com>]
4971 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4972 routines: without these tracing memory leaks is very painful.
4973 Fix leaks in PKCS12 and PKCS7 routines.
4976 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4977 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4978 effectively meant GeneralizedTime would never be used. Now it
4979 is initialised to -1 but X509_time_adj() now has to check the value
4980 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4981 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4982 [Steve Henson, reported by Kenneth R. Robinette
4983 <support@securenetterm.com>]
4985 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4986 result in a zero length in the ASN1_INTEGER structure which was
4987 not consistent with the structure when d2i_ASN1_INTEGER() was used
4988 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4989 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4990 where it did not print out a minus for negative ASN1_INTEGER.
4993 *) Add summary printout to ocsp utility. The various functions which
4994 convert status values to strings have been renamed to:
4995 OCSP_response_status_str(), OCSP_cert_status_str() and
4996 OCSP_crl_reason_str() and are no longer static. New options
4997 to verify nonce values and to disable verification. OCSP response
4998 printout format cleaned up.
5001 *) Add additional OCSP certificate checks. These are those specified
5002 in RFC2560. This consists of two separate checks: the CA of the
5003 certificate being checked must either be the OCSP signer certificate
5004 or the issuer of the OCSP signer certificate. In the latter case the
5005 OCSP signer certificate must contain the OCSP signing extended key
5006 usage. This check is performed by attempting to match the OCSP
5007 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5008 in the OCSP_CERTID structures of the response.
5011 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5012 and related routines. This uses the standard OpenSSL certificate
5013 verify routines to perform initial checks (just CA validity) and
5014 to obtain the certificate chain. Then additional checks will be
5015 performed on the chain. Currently the root CA is checked to see
5016 if it is explicitly trusted for OCSP signing. This is used to set
5017 a root CA as a global signing root: that is any certificate that
5018 chains to that CA is an acceptable OCSP signing certificate.
5021 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5022 extensions from a separate configuration file.
5023 As when reading extensions from the main configuration file,
5024 the '-extensions ...' option may be used for specifying the
5026 [Massimiliano Pala <madwolf@comune.modena.it>]
5028 *) New OCSP utility. Allows OCSP requests to be generated or
5029 read. The request can be sent to a responder and the output
5030 parsed, outputed or printed in text form. Not complete yet:
5031 still needs to check the OCSP response validity.
5034 *) New subcommands for 'openssl ca':
5035 'openssl ca -status <serial>' prints the status of the cert with
5036 the given serial number (according to the index file).
5037 'openssl ca -updatedb' updates the expiry status of certificates
5039 [Massimiliano Pala <madwolf@comune.modena.it>]
5041 *) New '-newreq-nodes' command option to CA.pl. This is like
5042 '-newreq', but calls 'openssl req' with the '-nodes' option
5043 so that the resulting key is not encrypted.
5044 [Damien Miller <djm@mindrot.org>]
5046 *) New configuration for the GNU Hurd.
5047 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5049 *) Initial code to implement OCSP basic response verify. This
5050 is currently incomplete. Currently just finds the signer's
5051 certificate and verifies the signature on the response.
5054 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5055 value of OPENSSLDIR. This is available via the new '-d' option
5056 to 'openssl version', and is also included in 'openssl version -a'.
5059 *) Allowing defining memory allocation callbacks that will be given
5060 file name and line number information in additional arguments
5061 (a const char* and an int). The basic functionality remains, as
5062 well as the original possibility to just replace malloc(),
5063 realloc() and free() by functions that do not know about these
5064 additional arguments. To register and find out the current
5065 settings for extended allocation functions, the following
5066 functions are provided:
5068 CRYPTO_set_mem_ex_functions
5069 CRYPTO_set_locked_mem_ex_functions
5070 CRYPTO_get_mem_ex_functions
5071 CRYPTO_get_locked_mem_ex_functions
5073 These work the same way as CRYPTO_set_mem_functions and friends.
5074 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5075 extended allocation function is enabled.
5076 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5077 a conventional allocation function is enabled.
5078 [Richard Levitte, Bodo Moeller]
5080 *) Finish off removing the remaining LHASH function pointer casts.
5081 There should no longer be any prototype-casting required when using
5082 the LHASH abstraction, and any casts that remain are "bugs". See
5083 the callback types and macros at the head of lhash.h for details
5084 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5087 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5088 If /dev/[u]random devices are not available or do not return enough
5089 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5091 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5092 /etc/entropy will be queried once each in this sequence, quering stops
5093 when enough entropy was collected without querying more sockets.
5096 *) Change the Unix RAND_poll() variant to be able to poll several
5097 random devices, as specified by DEVRANDOM, until a sufficient amount
5098 of data has been collected. We spend at most 10 ms on each file
5099 (select timeout) and read in non-blocking mode. DEVRANDOM now
5100 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5101 (previously it was just the string "/dev/urandom"), so on typical
5102 platforms the 10 ms delay will never occur.
5103 Also separate out the Unix variant to its own file, rand_unix.c.
5104 For VMS, there's a currently-empty rand_vms.c.
5107 *) Move OCSP client related routines to ocsp_cl.c. These
5108 provide utility functions which an application needing
5109 to issue a request to an OCSP responder and analyse the
5110 response will typically need: as opposed to those which an
5111 OCSP responder itself would need which will be added later.
5113 OCSP_request_sign() signs an OCSP request with an API similar
5114 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5115 response. OCSP_response_get1_basic() extracts basic response
5116 from response. OCSP_resp_find_status(): finds and extracts status
5117 information from an OCSP_CERTID structure (which will be created
5118 when the request structure is built). These are built from lower
5119 level functions which work on OCSP_SINGLERESP structures but
5120 wont normally be used unless the application wishes to examine
5121 extensions in the OCSP response for example.
5123 Replace nonce routines with a pair of functions.
5124 OCSP_request_add1_nonce() adds a nonce value and optionally
5125 generates a random value. OCSP_check_nonce() checks the
5126 validity of the nonce in an OCSP response.
5129 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5130 This doesn't copy the supplied OCSP_CERTID and avoids the
5131 need to free up the newly created id. Change return type
5132 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5133 This can then be used to add extensions to the request.
5134 Deleted OCSP_request_new(), since most of its functionality
5135 is now in OCSP_REQUEST_new() (and the case insensitive name
5136 clash) apart from the ability to set the request name which
5137 will be added elsewhere.
5140 *) Update OCSP API. Remove obsolete extensions argument from
5141 various functions. Extensions are now handled using the new
5142 OCSP extension code. New simple OCSP HTTP function which
5143 can be used to send requests and parse the response.
5146 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5147 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5148 uses the special reorder version of SET OF to sort the attributes
5149 and reorder them to match the encoded order. This resolves a long
5150 standing problem: a verify on a PKCS7 structure just after signing
5151 it used to fail because the attribute order did not match the
5152 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5153 it uses the received order. This is necessary to tolerate some broken
5154 software that does not order SET OF. This is handled by encoding
5155 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5156 to produce the required SET OF.
5159 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5160 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5161 files to get correct declarations of the ASN.1 item variables.
5164 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5165 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5166 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5167 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5168 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5169 ASN1_ITEM and no wrapper functions.
5172 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5173 replace the old function pointer based I/O routines. Change most of
5174 the *_d2i_bio() and *_d2i_fp() functions to use these.
5177 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5178 lines, recognice more "algorithms" that can be deselected, and make
5179 it complain about algorithm deselection that isn't recognised.
5182 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5183 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5184 to use new functions. Add NO_ASN1_OLD which can be set to remove
5185 some old style ASN1 functions: this can be used to determine if old
5186 code will still work when these eventually go away.
5189 *) New extension functions for OCSP structures, these follow the
5190 same conventions as certificates and CRLs.
5193 *) New function X509V3_add1_i2d(). This automatically encodes and
5194 adds an extension. Its behaviour can be customised with various
5195 flags to append, replace or delete. Various wrappers added for
5196 certifcates and CRLs.
5199 *) Fix to avoid calling the underlying ASN1 print routine when
5200 an extension cannot be parsed. Correct a typo in the
5201 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5204 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5205 entries for variables.
5208 *) Add functionality to apps/openssl.c for detecting locking
5209 problems: As the program is single-threaded, all we have
5210 to do is register a locking callback using an array for
5211 storing which locks are currently held by the program.
5214 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5215 SSL_get_ex_data_X509_STORE_idx(), which is used in
5216 ssl_verify_cert_chain() and thus can be called at any time
5217 during TLS/SSL handshakes so that thread-safety is essential.
5218 Unfortunately, the ex_data design is not at all suited
5219 for multi-threaded use, so it probably should be abolished.
5222 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5223 [Broadcom, tweaked and integrated by Geoff Thorpe]
5225 *) Move common extension printing code to new function
5226 X509V3_print_extensions(). Reorganise OCSP print routines and
5227 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5230 *) New function X509_signature_print() to remove duplication in some
5234 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5235 set (this was treated exactly the same as SET OF previously). This
5236 is used to reorder the STACK representing the structure to match the
5237 encoding. This will be used to get round a problem where a PKCS7
5238 structure which was signed could not be verified because the STACK
5239 order did not reflect the encoded order.
5242 *) Reimplement the OCSP ASN1 module using the new code.
5245 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5246 for its ASN1 operations. The old style function pointers still exist
5247 for now but they will eventually go away.
5250 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5251 completely replaces the old ASN1 functionality with a table driven
5252 encoder and decoder which interprets an ASN1_ITEM structure describing
5253 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5254 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5255 has also been converted to the new form.
5258 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5259 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5260 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5261 for negative moduli.
5264 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5265 of not touching the result's sign bit.
5268 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5272 *) Changed the LHASH code to use prototypes for callbacks, and created
5273 macros to declare and implement thin (optionally static) functions
5274 that provide type-safety and avoid function pointer casting for the
5275 type-specific callbacks.
5278 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5280 [Veers Staats <staatsvr@asc.hpc.mil>,
5281 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5283 *) Reformat the FAQ so the different questions and answers can be divided
5284 in sections depending on the subject.
5287 *) Have the zlib compression code load ZLIB.DLL dynamically under
5291 *) New function BN_mod_sqrt for computing square roots modulo a prime
5292 (using the probabilistic Tonelli-Shanks algorithm unless
5293 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5294 be handled deterministically).
5295 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5297 *) Make BN_mod_inverse faster by explicitly handling small quotients
5298 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5299 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5302 *) New function BN_kronecker.
5305 *) Fix BN_gcd so that it works on negative inputs; the result is
5306 positive unless both parameters are zero.
5307 Previously something reasonably close to an infinite loop was
5308 possible because numbers could be growing instead of shrinking
5309 in the implementation of Euclid's algorithm.
5312 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5313 sign of the number in question.
5315 Fix BN_is_word(a,w) to work correctly for w == 0.
5317 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5318 because its test if the absolute value of 'a' equals 'w'.
5319 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5320 it exists mostly for use in the implementations of BN_is_zero(),
5321 BN_is_one(), and BN_is_word().
5324 *) New function BN_swap.
5327 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5328 the exponentiation functions are more likely to produce reasonable
5329 results on negative inputs.
5332 *) Change BN_mod_mul so that the result is always non-negative.
5333 Previously, it could be negative if one of the factors was negative;
5334 I don't think anyone really wanted that behaviour.
5337 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5338 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5339 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5340 and add new functions:
5349 BN_mod_lshift1_quick
5353 These functions always generate non-negative results.
5355 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5356 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5358 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5359 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5360 be reduced modulo m.
5361 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5364 The following entry accidentily appeared in the CHANGES file
5365 distributed with OpenSSL 0.9.7. The modifications described in
5366 it do *not* apply to OpenSSL 0.9.7.
5368 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5369 was actually never needed) and in BN_mul(). The removal in BN_mul()
5370 required a small change in bn_mul_part_recursive() and the addition
5371 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5372 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5373 bn_sub_words() and bn_add_words() except they take arrays with
5378 *) In 'openssl passwd', verify passwords read from the terminal
5379 unless the '-salt' option is used (which usually means that
5380 verification would just waste user's time since the resulting
5381 hash is going to be compared with some given password hash)
5382 or the new '-noverify' option is used.
5384 This is an incompatible change, but it does not affect
5385 non-interactive use of 'openssl passwd' (passwords on the command
5386 line, '-stdin' option, '-in ...' option) and thus should not
5390 *) Remove all references to RSAref, since there's no more need for it.
5393 *) Make DSO load along a path given through an environment variable
5394 (SHLIB_PATH) with shl_load().
5397 *) Constify the ENGINE code as a result of BIGNUM constification.
5398 Also constify the RSA code and most things related to it. In a
5399 few places, most notable in the depth of the ASN.1 code, ugly
5400 casts back to non-const were required (to be solved at a later
5404 *) Make it so the openssl application has all engines loaded by default.
5407 *) Constify the BIGNUM routines a little more.
5410 *) Add the following functions:
5412 ENGINE_load_cswift()
5414 ENGINE_load_atalla()
5416 ENGINE_load_builtin_engines()
5418 That way, an application can itself choose if external engines that
5419 are built-in in OpenSSL shall ever be used or not. The benefit is
5420 that applications won't have to be linked with libdl or other dso
5421 libraries unless it's really needed.
5423 Changed 'openssl engine' to load all engines on demand.
5424 Changed the engine header files to avoid the duplication of some
5425 declarations (they differed!).
5428 *) 'openssl engine' can now list capabilities.
5431 *) Better error reporting in 'openssl engine'.
5434 *) Never call load_dh_param(NULL) in s_server.
5437 *) Add engine application. It can currently list engines by name and
5438 identity, and test if they are actually available.
5441 *) Improve RPM specification file by forcing symbolic linking and making
5442 sure the installed documentation is also owned by root.root.
5443 [Damien Miller <djm@mindrot.org>]
5445 *) Give the OpenSSL applications more possibilities to make use of
5446 keys (public as well as private) handled by engines.
5449 *) Add OCSP code that comes from CertCo.
5452 *) Add VMS support for the Rijndael code.
5455 *) Added untested support for Nuron crypto accelerator.
5458 *) Add support for external cryptographic devices. This code was
5459 previously distributed separately as the "engine" branch.
5460 [Geoff Thorpe, Richard Levitte]
5462 *) Rework the filename-translation in the DSO code. It is now possible to
5463 have far greater control over how a "name" is turned into a filename
5464 depending on the operating environment and any oddities about the
5465 different shared library filenames on each system.
5468 *) Support threads on FreeBSD-elf in Configure.
5471 *) Fix for SHA1 assembly problem with MASM: it produces
5472 warnings about corrupt line number information when assembling
5473 with debugging information. This is caused by the overlapping
5475 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5478 NCONF_get_number() has no error checking at all. As a replacement,
5479 NCONF_get_number_e() is defined (_e for "error checking") and is
5480 promoted strongly. The old NCONF_get_number is kept around for
5481 binary backward compatibility.
5482 Make it possible for methods to load from something other than a BIO,
5483 by providing a function pointer that is given a name instead of a BIO.
5484 For example, this could be used to load configuration data from an
5488 *) Fix for non blocking accept BIOs. Added new I/O special reason
5489 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5490 with non blocking I/O was not possible because no retry code was
5491 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5495 *) Added the beginnings of Rijndael support.
5498 *) Fix for bug in DirectoryString mask setting. Add support for
5499 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5500 to allow certificate printing to more controllable, additional
5501 'certopt' option to 'x509' to allow new printing options to be
5505 *) Clean old EAY MD5 hack from e_os.h.
5508 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5510 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5511 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5512 [Joe Orton, Steve Henson]
5514 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5516 *) Fix additional bug revealed by the NISCC test suite:
5518 Stop bug triggering large recursion when presented with
5519 certain ASN.1 tags (CVE-2003-0851)
5522 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5524 *) Fix various bugs revealed by running the NISCC test suite:
5526 Stop out of bounds reads in the ASN1 code when presented with
5527 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5529 If verify callback ignores invalid public key errors don't try to check
5530 certificate signature with the NULL public key.
5534 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5535 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5539 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5540 extra data after the compression methods not only for TLS 1.0
5541 but also for SSL 3.0 (as required by the specification).
5542 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5544 *) Change X509_certificate_type() to mark the key as exported/exportable
5545 when it's 512 *bits* long, not 512 bytes.
5548 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5550 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5551 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5552 a protocol version number mismatch like a decryption error
5553 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5556 *) Turn on RSA blinding by default in the default implementation
5557 to avoid a timing attack. Applications that don't want it can call
5558 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5559 They would be ill-advised to do so in most cases.
5560 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5562 *) Change RSA blinding code so that it works when the PRNG is not
5563 seeded (in this case, the secret RSA exponent is abused as
5564 an unpredictable seed -- if it is not unpredictable, there
5565 is no point in blinding anyway). Make RSA blinding thread-safe
5566 by remembering the creator's thread ID in rsa->blinding and
5567 having all other threads use local one-time blinding factors
5568 (this requires more computation than sharing rsa->blinding, but
5569 avoids excessive locking; and if an RSA object is not shared
5570 between threads, blinding will still be very fast).
5573 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5575 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5576 via timing by performing a MAC computation even if incorrrect
5577 block cipher padding has been found. This is a countermeasure
5578 against active attacks where the attacker has to distinguish
5579 between bad padding and a MAC verification error. (CVE-2003-0078)
5581 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5582 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5583 Martin Vuagnoux (EPFL, Ilion)]
5585 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5587 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5588 memory from it's contents. This is done with a counter that will
5589 place alternating values in each byte. This can be used to solve
5590 two issues: 1) the removal of calls to memset() by highly optimizing
5591 compilers, and 2) cleansing with other values than 0, since those can
5592 be read through on certain media, for example a swap space on disk.
5595 *) Bugfix: client side session caching did not work with external caching,
5596 because the session->cipher setting was not restored when reloading
5597 from the external cache. This problem was masked, when
5598 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5599 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5602 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5603 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5604 [Zeev Lieber <zeev-l@yahoo.com>]
5606 *) Undo an undocumented change introduced in 0.9.6e which caused
5607 repeated calls to OpenSSL_add_all_ciphers() and
5608 OpenSSL_add_all_digests() to be ignored, even after calling
5612 *) Change the default configuration reader to deal with last line not
5613 being properly terminated.
5616 *) Change X509_NAME_cmp() so it applies the special rules on handling
5617 DN values that are of type PrintableString, as well as RDNs of type
5618 emailAddress where the value has the type ia5String.
5619 [stefank@valicert.com via Richard Levitte]
5621 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5622 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5623 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5624 the bitwise-OR of the two for use by the majority of applications
5625 wanting this behaviour, and update the docs. The documented
5626 behaviour and actual behaviour were inconsistent and had been
5627 changing anyway, so this is more a bug-fix than a behavioural
5629 [Geoff Thorpe, diagnosed by Nadav Har'El]
5631 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5632 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5635 *) Fix initialization code race conditions in
5636 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5637 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5638 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5639 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5640 ssl2_get_cipher_by_char(),
5641 ssl3_get_cipher_by_char().
5642 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5644 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5645 the cached sessions are flushed, as the remove_cb() might use ex_data
5646 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5647 (see [openssl.org #212]).
5648 [Geoff Thorpe, Lutz Jaenicke]
5650 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5651 length, instead of the encoding length to d2i_ASN1_OBJECT.
5654 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5656 *) [In 0.9.6g-engine release:]
5657 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5658 [Lynn Gazis <lgazis@rainbow.com>]
5660 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5662 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5663 and get fix the header length calculation.
5664 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5665 Alon Kantor <alonk@checkpoint.com> (and others),
5668 *) Use proper error handling instead of 'assertions' in buffer
5669 overflow checks added in 0.9.6e. This prevents DoS (the
5670 assertions could call abort()).
5671 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5673 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5675 *) Add various sanity checks to asn1_get_length() to reject
5676 the ASN1 length bytes if they exceed sizeof(long), will appear
5677 negative or the content length exceeds the length of the
5679 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5681 *) Fix cipher selection routines: ciphers without encryption had no flags
5682 for the cipher strength set and where therefore not handled correctly
5683 by the selection routines (PR #130).
5686 *) Fix EVP_dsa_sha macro.
5690 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5691 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5692 that was added in OpenSSL 0.9.6d.
5694 As the countermeasure turned out to be incompatible with some
5695 broken SSL implementations, the new option is part of SSL_OP_ALL.
5696 SSL_OP_ALL is usually employed when compatibility with weird SSL
5697 implementations is desired (e.g. '-bugs' option to 's_client' and
5698 's_server'), so the new option is automatically set in many
5702 *) Changes in security patch:
5704 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5705 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5706 Air Force Materiel Command, USAF, under agreement number
5709 *) Add various sanity checks to asn1_get_length() to reject
5710 the ASN1 length bytes if they exceed sizeof(long), will appear
5711 negative or the content length exceeds the length of the
5712 supplied buffer. (CVE-2002-0659)
5713 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5715 *) Assertions for various potential buffer overflows, not known to
5717 [Ben Laurie (CHATS)]
5719 *) Various temporary buffers to hold ASCII versions of integers were
5720 too small for 64 bit platforms. (CVE-2002-0655)
5721 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5723 *) Remote buffer overflow in SSL3 protocol - an attacker could
5724 supply an oversized session ID to a client. (CVE-2002-0656)
5725 [Ben Laurie (CHATS)]
5727 *) Remote buffer overflow in SSL2 protocol - an attacker could
5728 supply an oversized client master key. (CVE-2002-0656)
5729 [Ben Laurie (CHATS)]
5731 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5733 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5734 encoded as NULL) with id-dsa-with-sha1.
5735 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5737 *) Check various X509_...() return values in apps/req.c.
5738 [Nils Larsch <nla@trustcenter.de>]
5740 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5741 an end-of-file condition would erronously be flagged, when the CRLF
5742 was just at the end of a processed block. The bug was discovered when
5743 processing data through a buffering memory BIO handing the data to a
5744 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5745 <ptsekov@syntrex.com> and Nedelcho Stanev.
5748 *) Implement a countermeasure against a vulnerability recently found
5749 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5750 before application data chunks to avoid the use of known IVs
5751 with data potentially chosen by the attacker.
5754 *) Fix length checks in ssl3_get_client_hello().
5757 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5758 to prevent ssl3_read_internal() from incorrectly assuming that
5759 ssl3_read_bytes() found application data while handshake
5760 processing was enabled when in fact s->s3->in_read_app_data was
5761 merely automatically cleared during the initial handshake.
5762 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5764 *) Fix object definitions for Private and Enterprise: they were not
5765 recognized in their shortname (=lowercase) representation. Extend
5766 obj_dat.pl to issue an error when using undefined keywords instead
5767 of silently ignoring the problem (Svenning Sorensen
5768 <sss@sss.dnsalias.net>).
5771 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5772 generators, i.e. generators other than 2 and 5. (Previously, the
5773 code did not properly initialise the 'add' and 'rem' values to
5774 BN_generate_prime().)
5776 In the new general case, we do not insist that 'generator' is
5777 actually a primitive root: This requirement is rather pointless;
5778 a generator of the order-q subgroup is just as good, if not
5782 *) Map new X509 verification errors to alerts. Discovered and submitted by
5783 Tom Wu <tom@arcot.com>.
5786 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5787 returning non-zero before the data has been completely received
5788 when using non-blocking I/O.
5789 [Bodo Moeller; problem pointed out by John Hughes]
5791 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5792 [Ben Laurie, Lutz Jaenicke]
5794 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5795 Yoram Zahavi <YoramZ@gilian.com>).
5798 *) Add information about CygWin 1.3 and on, and preserve proper
5799 configuration for the versions before that.
5800 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5802 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5803 check whether we deal with a copy of a session and do not delete from
5804 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5805 <izhar@checkpoint.com>.
5808 *) Do not store session data into the internal session cache, if it
5809 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5810 flag is set). Proposed by Aslam <aslam@funk.com>.
5813 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5817 *) [In 0.9.6d-engine release:]
5818 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5819 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5821 *) Add the configuration target linux-s390x.
5822 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5824 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5825 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5826 variable as an indication that a ClientHello message has been
5827 received. As the flag value will be lost between multiple
5828 invocations of ssl3_accept when using non-blocking I/O, the
5829 function may not be aware that a handshake has actually taken
5830 place, thus preventing a new session from being added to the
5833 To avoid this problem, we now set s->new_session to 2 instead of
5834 using a local variable.
5835 [Lutz Jaenicke, Bodo Moeller]
5837 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5838 if the SSL_R_LENGTH_MISMATCH error is detected.
5839 [Geoff Thorpe, Bodo Moeller]
5841 *) New 'shared_ldflag' column in Configure platform table.
5844 *) Fix EVP_CIPHER_mode macro.
5845 ["Dan S. Camper" <dan@bti.net>]
5847 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5848 type, we must throw them away by setting rr->length to 0.
5849 [D P Chang <dpc@qualys.com>]
5851 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5853 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5854 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5855 worked incorrectly for those cases where range = 10..._2 and
5856 3*range is two bits longer than range.)
5859 *) Only add signing time to PKCS7 structures if it is not already
5863 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5864 OBJ_ld_ce should be OBJ_id_ce.
5865 Also some ip-pda OIDs in crypto/objects/objects.txt were
5866 incorrect (cf. RFC 3039).
5867 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5869 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5870 returns early because it has nothing to do.
5871 [Andy Schneider <andy.schneider@bjss.co.uk>]
5873 *) [In 0.9.6c-engine release:]
5874 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5875 [Andy Schneider <andy.schneider@bjss.co.uk>]
5877 *) [In 0.9.6c-engine release:]
5878 Add support for Cryptographic Appliance's keyserver technology.
5879 (Use engine 'keyclient')
5880 [Cryptographic Appliances and Geoff Thorpe]
5882 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5883 is called via tools/c89.sh because arguments have to be
5884 rearranged (all '-L' options must appear before the first object
5886 [Richard Shapiro <rshapiro@abinitio.com>]
5888 *) [In 0.9.6c-engine release:]
5889 Add support for Broadcom crypto accelerator cards, backported
5891 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5893 *) [In 0.9.6c-engine release:]
5894 Add support for SureWare crypto accelerator cards from
5895 Baltimore Technologies. (Use engine 'sureware')
5896 [Baltimore Technologies and Mark Cox]
5898 *) [In 0.9.6c-engine release:]
5899 Add support for crypto accelerator cards from Accelerated
5900 Encryption Processing, www.aep.ie. (Use engine 'aep')
5901 [AEP Inc. and Mark Cox]
5903 *) Add a configuration entry for gcc on UnixWare.
5904 [Gary Benson <gbenson@redhat.com>]
5906 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5907 messages are stored in a single piece (fixed-length part and
5908 variable-length part combined) and fix various bugs found on the way.
5911 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5912 instead. BIO_gethostbyname() does not know what timeouts are
5913 appropriate, so entries would stay in cache even when they have
5915 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5917 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5918 faced with a pathologically small ClientHello fragment that does
5919 not contain client_version: Instead of aborting with an error,
5920 simply choose the highest available protocol version (i.e.,
5921 TLS 1.0 unless it is disabled). In practice, ClientHello
5922 messages are never sent like this, but this change gives us
5923 strictly correct behaviour at least for TLS.
5926 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5927 never resets s->method to s->ctx->method when called from within
5928 one of the SSL handshake functions.
5929 [Bodo Moeller; problem pointed out by Niko Baric]
5931 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5932 (sent using the client's version number) if client_version is
5933 smaller than the protocol version in use. Also change
5934 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5935 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5936 the client will at least see that alert.
5939 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5943 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5944 client receives HelloRequest while in a handshake.
5945 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5947 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5948 should end in 'break', not 'goto end' which circuments various
5949 cleanups done in state SSL_ST_OK. But session related stuff
5950 must be disabled for SSL_ST_OK in the case that we just sent a
5953 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5954 before just sending a HelloRequest.
5955 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5957 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5958 reveal whether illegal block cipher padding was found or a MAC
5959 verification error occured. (Neither SSLerr() codes nor alerts
5960 are directly visible to potential attackers, but the information
5961 may leak via logfiles.)
5963 Similar changes are not required for the SSL 2.0 implementation
5964 because the number of padding bytes is sent in clear for SSL 2.0,
5965 and the extra bytes are just ignored. However ssl/s2_pkt.c
5966 failed to verify that the purported number of padding bytes is in
5970 *) Add OpenUNIX-8 support including shared libraries
5971 (Boyd Lynn Gerber <gerberb@zenez.com>).
5974 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5975 'wristwatch attack' using huge encoding parameters (cf.
5976 James H. Manger's CRYPTO 2001 paper). Note that the
5977 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5978 encoding parameters and hence was not vulnerable.
5981 *) BN_sqr() bug fix.
5982 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5984 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5985 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5986 followed by modular reduction.
5987 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5989 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5990 equivalent based on BN_pseudo_rand() instead of BN_rand().
5993 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5994 This function was broken, as the check for a new client hello message
5995 to handle SGC did not allow these large messages.
5996 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5999 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6002 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6003 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6006 *) Rework the configuration and shared library support for Tru64 Unix.
6007 The configuration part makes use of modern compiler features and
6008 still retains old compiler behavior for those that run older versions
6009 of the OS. The shared library support part includes a variant that
6010 uses the RPATH feature, and is available through the special
6011 configuration target "alpha-cc-rpath", which will never be selected
6013 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6015 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6016 with the same message size as in ssl3_get_certificate_request().
6017 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6018 messages might inadvertently be reject as too long.
6019 [Petr Lampa <lampa@fee.vutbr.cz>]
6021 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6024 *) Modified SSL library such that the verify_callback that has been set
6025 specificly for an SSL object with SSL_set_verify() is actually being
6026 used. Before the change, a verify_callback set with this function was
6027 ignored and the verify_callback() set in the SSL_CTX at the time of
6028 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6029 to allow the necessary settings.
6032 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6033 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6034 done automatically (in contradiction to the requirements of the C
6035 standard). This made problems when used from OpenSSH.
6038 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6039 dh->length and always used
6041 BN_rand_range(priv_key, dh->p).
6043 BN_rand_range() is not necessary for Diffie-Hellman, and this
6044 specific range makes Diffie-Hellman unnecessarily inefficient if
6045 dh->length (recommended exponent length) is much smaller than the
6046 length of dh->p. We could use BN_rand_range() if the order of
6047 the subgroup was stored in the DH structure, but we only have
6052 BN_rand(priv_key, l, ...)
6054 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6060 RSA_eay_public_encrypt
6061 RSA_eay_private_decrypt
6062 RSA_eay_private_encrypt (signing)
6063 RSA_eay_public_decrypt (signature verification)
6065 (default implementations for RSA_public_encrypt,
6066 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6067 always reject numbers >= n.
6070 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6071 to synchronize access to 'locking_thread'. This is necessary on
6072 systems where access to 'locking_thread' (an 'unsigned long'
6073 variable) is not atomic.
6076 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6077 *before* setting the 'crypto_lock_rand' flag. The previous code had
6078 a race condition if 0 is a valid thread ID.
6079 [Travis Vitek <vitek@roguewave.com>]
6081 *) Add support for shared libraries under Irix.
6082 [Albert Chin-A-Young <china@thewrittenword.com>]
6084 *) Add configuration option to build on Linux on both big-endian and
6086 [Ralf Baechle <ralf@uni-koblenz.de>]
6088 *) Add the possibility to create shared libraries on HP-UX.
6091 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6093 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6094 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6095 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6096 PRNG state recovery was possible based on the output of
6097 one PRNG request appropriately sized to gain knowledge on
6098 'md' followed by enough consecutive 1-byte PRNG requests
6099 to traverse all of 'state'.
6101 1. When updating 'md_local' (the current thread's copy of 'md')
6102 during PRNG output generation, hash all of the previous
6103 'md_local' value, not just the half used for PRNG output.
6105 2. Make the number of bytes from 'state' included into the hash
6106 independent from the number of PRNG bytes requested.
6108 The first measure alone would be sufficient to avoid
6109 Markku-Juhani's attack. (Actually it had never occurred
6110 to me that the half of 'md_local' used for chaining was the
6111 half from which PRNG output bytes were taken -- I had always
6112 assumed that the secret half would be used.) The second
6113 measure makes sure that additional data from 'state' is never
6114 mixed into 'md_local' in small portions; this heuristically
6115 further strengthens the PRNG.
6118 *) Fix crypto/bn/asm/mips3.s.
6121 *) When only the key is given to "enc", the IV is undefined. Print out
6122 an error message in this case.
6125 *) Handle special case when X509_NAME is empty in X509 printing routines.
6128 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6129 positive and less than q.
6132 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6133 used: it isn't thread safe and the add_lock_callback should handle
6135 [Paul Rose <Paul.Rose@bridge.com>]
6137 *) Verify that incoming data obeys the block size in
6138 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6142 [Ulf Möller, Bodo Möller]
6144 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6145 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6146 when fixing the server behaviour for backwards-compatible 'client
6147 hello' messages. (Note that the attack is impractical against
6148 SSL 3.0 and TLS 1.0 anyway because length and version checking
6149 means that the probability of guessing a valid ciphertext is
6150 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6153 Before 0.9.5, the countermeasure (hide the error by generating a
6154 random 'decryption result') did not work properly because
6155 ERR_clear_error() was missing, meaning that SSL_get_error() would
6156 detect the supposedly ignored error.
6158 Both problems are now fixed.
6161 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6162 (previously it was 1024).
6165 *) Fix for compatibility mode trust settings: ignore trust settings
6166 unless some valid trust or reject settings are present.
6169 *) Fix for blowfish EVP: its a variable length cipher.
6172 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6173 parameters in DSA public key structures and return an error in the
6174 DSA routines if parameters are absent.
6177 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6178 in the current directory if neither $RANDFILE nor $HOME was set.
6179 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6180 caused some confusion to Windows users who haven't defined $HOME.
6181 Thus RAND_file_name() is changed again: e_os.h can define a
6182 DEFAULT_HOME, which will be used if $HOME is not set.
6183 For Windows, we use "C:"; on other platforms, we still require
6184 environment variables.
6186 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6187 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6188 having multiple threads call RAND_poll() concurrently.
6191 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6192 combination of a flag and a thread ID variable.
6193 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6194 flag), *other* threads can enter ssleay_add_bytes without obeying
6195 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6196 that they do not hold after the first thread unsets add_do_not_lock).
6199 *) Change bctest again: '-x' expressions are not available in all
6203 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6205 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6206 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6208 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6209 the default extension for executables, if any. Also, make the perl
6210 scripts that use symlink() to test if it really exists and use "cp"
6211 if it doesn't. All this made OpenSSL compilable and installable in
6215 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6216 If SEQUENCE is length is indefinite just set c->slen to the total
6217 amount of data available.
6218 [Steve Henson, reported by shige@FreeBSD.org]
6219 [This change does not apply to 0.9.7.]
6221 *) Change bctest to avoid here-documents inside command substitution
6222 (workaround for FreeBSD /bin/sh bug).
6223 For compatibility with Ultrix, avoid shell functions (introduced
6224 in the bctest version that searches along $PATH).
6227 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6228 with des_encrypt() defined on some operating systems, like Solaris
6232 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6233 On the Importance of Eliminating Errors in Cryptographic
6234 Computations, J. Cryptology 14 (2001) 2, 101-119,
6235 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6238 *) MIPS assembler BIGNUM division bug fix.
6241 *) Disabled incorrect Alpha assembler code.
6244 *) Fix PKCS#7 decode routines so they correctly update the length
6245 after reading an EOC for the EXPLICIT tag.
6247 [This change does not apply to 0.9.7.]
6249 *) Fix bug in PKCS#12 key generation routines. This was triggered
6250 if a 3DES key was generated with a 0 initial byte. Include
6251 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6252 (but broken) behaviour.
6255 *) Enhance bctest to search for a working bc along $PATH and print
6257 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6259 *) Fix memory leaks in err.c: free err_data string if necessary;
6260 don't write to the wrong index in ERR_set_error_data.
6263 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6267 *) Replace rdtsc with _emit statements for VC++ version 5.
6268 [Jeremy Cooper <jeremy@baymoo.org>]
6270 *) Make it possible to reuse SSLv2 sessions.
6273 *) In copy_email() check for >= 0 as a return value for
6274 X509_NAME_get_index_by_NID() since 0 is a valid index.
6275 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6277 *) Avoid coredump with unsupported or invalid public keys by checking if
6278 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6279 PKCS7_verify() fails with non detached data.
6282 *) Don't use getenv in library functions when run as setuid/setgid.
6283 New function OPENSSL_issetugid().
6286 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6287 due to incorrect handling of multi-threading:
6289 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6291 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6293 3. Count how many times MemCheck_off() has been called so that
6294 nested use can be treated correctly. This also avoids
6295 inband-signalling in the previous code (which relied on the
6296 assumption that thread ID 0 is impossible).
6299 *) Add "-rand" option also to s_client and s_server.
6302 *) Fix CPU detection on Irix 6.x.
6303 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6304 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6306 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6309 [This change does not apply to 0.9.7.]
6311 *) Use the cached encoding of an X509_NAME structure rather than
6312 copying it. This is apparently the reason for the libsafe "errors"
6313 but the code is actually correct.
6316 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6317 Bleichenbacher's DSA attack.
6318 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6319 to be set and top=0 forces the highest bit to be set; top=-1 is new
6320 and leaves the highest bit random.
6321 [Ulf Moeller, Bodo Moeller]
6323 *) In the NCONF_...-based implementations for CONF_... queries
6324 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6325 a temporary CONF structure with the data component set to NULL
6326 (which gives segmentation faults in lh_retrieve).
6327 Instead, use NULL for the CONF pointer in CONF_get_string and
6328 CONF_get_number (which may use environment variables) and directly
6329 return NULL from CONF_get_section.
6332 *) Fix potential buffer overrun for EBCDIC.
6335 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6336 keyUsage if basicConstraints absent for a CA.
6339 *) Make SMIME_write_PKCS7() write mail header values with a format that
6340 is more generally accepted (no spaces before the semicolon), since
6341 some programs can't parse those values properly otherwise. Also make
6342 sure BIO's that break lines after each write do not create invalid
6346 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6347 macros previously used would not encode an empty SEQUENCE OF
6348 and break the signature.
6350 [This change does not apply to 0.9.7.]
6352 *) Zero the premaster secret after deriving the master secret in
6356 *) Add some EVP_add_digest_alias registrations (as found in
6357 OpenSSL_add_all_digests()) to SSL_library_init()
6358 aka OpenSSL_add_ssl_algorithms(). This provides improved
6359 compatibility with peers using X.509 certificates
6360 with unconventional AlgorithmIdentifier OIDs.
6363 *) Fix for Irix with NO_ASM.
6364 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6366 *) ./config script fixes.
6367 [Ulf Moeller, Richard Levitte]
6369 *) Fix 'openssl passwd -1'.
6372 *) Change PKCS12_key_gen_asc() so it can cope with non null
6373 terminated strings whose length is passed in the passlen
6374 parameter, for example from PEM callbacks. This was done
6375 by adding an extra length parameter to asc2uni().
6376 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6378 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6379 call failed, free the DSA structure.
6382 *) Fix to uni2asc() to cope with zero length Unicode strings.
6383 These are present in some PKCS#12 files.
6386 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6387 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6388 when writing a 32767 byte record.
6389 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6391 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6392 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6394 (RSA objects have a reference count access to which is protected
6395 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6396 so they are meant to be shared between threads.)
6397 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6398 "Reddie, Steven" <Steven.Reddie@ca.com>]
6400 *) Fix a deadlock in CRYPTO_mem_leaks().
6403 *) Use better test patterns in bntest.
6406 *) rand_win.c fix for Borland C.
6409 *) BN_rshift bugfix for n == 0.
6412 *) Add a 'bctest' script that checks for some known 'bc' bugs
6413 so that 'make test' does not abort just because 'bc' is broken.
6416 *) Store verify_result within SSL_SESSION also for client side to
6417 avoid potential security hole. (Re-used sessions on the client side
6418 always resulted in verify_result==X509_V_OK, not using the original
6419 result of the server certificate verification.)
6422 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6423 SSL3_RT_APPLICATION_DATA, return 0.
6424 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6428 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6429 releases, have been re-implemented by renaming the previous
6430 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6431 and ssl3_read_internal, respectively, and adding 'peek' parameters
6432 to them. The new ssl[23]_{read,peek} functions are calls to
6433 ssl[23]_read_internal with the 'peek' flag set appropriately.
6434 A 'peek' parameter has also been added to ssl3_read_bytes, which
6435 does the actual work for ssl3_read_internal.
6438 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6439 the method-specific "init()" handler. Also clean up ex_data after
6440 calling the method-specific "finish()" handler. Previously, this was
6441 happening the other way round.
6444 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6445 The previous value, 12, was not always sufficient for BN_mod_exp().
6448 *) Make sure that shared libraries get the internal name engine with
6449 the full version number and not just 0. This should mark the
6450 shared libraries as not backward compatible. Of course, this should
6451 be changed again when we can guarantee backward binary compatibility.
6454 *) Fix typo in get_cert_by_subject() in by_dir.c
6455 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6457 *) Rework the system to generate shared libraries:
6459 - Make note of the expected extension for the shared libraries and
6460 if there is a need for symbolic links from for example libcrypto.so.0
6461 to libcrypto.so.0.9.7. There is extended info in Configure for
6464 - Make as few rebuilds of the shared libraries as possible.
6466 - Still avoid linking the OpenSSL programs with the shared libraries.
6468 - When installing, install the shared libraries separately from the
6472 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6474 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6475 and not in SSL_clear because the latter is also used by the
6476 accept/connect functions; previously, the settings made by
6477 SSL_set_read_ahead would be lost during the handshake.
6478 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6480 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6481 Previously, it would create entries for disableed algorithms no
6485 *) Added several new manual pages for SSL_* function.
6488 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6490 *) In ssl23_get_client_hello, generate an error message when faced
6491 with an initial SSL 3.0/TLS record that is too small to contain the
6492 first two bytes of the ClientHello message, i.e. client_version.
6493 (Note that this is a pathologic case that probably has never happened
6494 in real life.) The previous approach was to use the version number
6495 from the record header as a substitute; but our protocol choice
6496 should not depend on that one because it is not authenticated
6497 by the Finished messages.
6500 *) More robust randomness gathering functions for Windows.
6501 [Jeffrey Altman <jaltman@columbia.edu>]
6503 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6504 not set then we don't setup the error code for issuer check errors
6505 to avoid possibly overwriting other errors which the callback does
6506 handle. If an application does set the flag then we assume it knows
6507 what it is doing and can handle the new informational codes
6511 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6512 a general "ANY" type, as such it should be able to decode anything
6513 including tagged types. However it didn't check the class so it would
6514 wrongly interpret tagged types in the same way as their universal
6515 counterpart and unknown types were just rejected. Changed so that the
6516 tagged and unknown types are handled in the same way as a SEQUENCE:
6517 that is the encoding is stored intact. There is also a new type
6518 "V_ASN1_OTHER" which is used when the class is not universal, in this
6519 case we have no idea what the actual type is so we just lump them all
6523 *) On VMS, stdout may very well lead to a file that is written to
6524 in a record-oriented fashion. That means that every write() will
6525 write a separate record, which will be read separately by the
6526 programs trying to read from it. This can be very confusing.
6528 The solution is to put a BIO filter in the way that will buffer
6529 text until a linefeed is reached, and then write everything a
6530 line at a time, so every record written will be an actual line,
6531 not chunks of lines and not (usually doesn't happen, but I've
6532 seen it once) several lines in one record. BIO_f_linebuffer() is
6535 Currently, it's a VMS-only method, because that's where it has
6536 been tested well enough.
6539 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6540 it can return incorrect results.
6541 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6542 but it was in 0.9.6-beta[12].)
6545 *) Disable the check for content being present when verifying detached
6546 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6547 include zero length content when signing messages.
6550 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6551 BIO_ctrl (for BIO pairs).
6554 *) Add DSO method for VMS.
6557 *) Bug fix: Montgomery multiplication could produce results with the
6561 *) Add RPM specification openssl.spec and modify it to build three
6562 packages. The default package contains applications, application
6563 documentation and run-time libraries. The devel package contains
6564 include files, static libraries and function documentation. The
6565 doc package contains the contents of the doc directory. The original
6566 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6569 *) Add a large number of documentation files for many SSL routines.
6570 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6572 *) Add a configuration entry for Sony News 4.
6573 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6575 *) Don't set the two most significant bits to one when generating a
6576 random number < q in the DSA library.
6579 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6580 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6581 the underlying transport is blocking) if a handshake took place.
6582 (The default behaviour is needed by applications such as s_client
6583 and s_server that use select() to determine when to use SSL_read;
6584 but for applications that know in advance when to expect data, it
6585 just makes things more complicated.)
6588 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6592 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6593 work better on such systems.
6594 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6596 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6597 Update PKCS12_parse() so it copies the friendlyName and the
6598 keyid to the certificates aux info.
6601 *) Fix bug in PKCS7_verify() which caused an infinite loop
6602 if there was more than one signature.
6603 [Sven Uszpelkat <su@celocom.de>]
6605 *) Major change in util/mkdef.pl to include extra information
6606 about each symbol, as well as presentig variables as well
6607 as functions. This change means that there's n more need
6608 to rebuild the .num files when some algorithms are excluded.
6611 *) Allow the verify time to be set by an application,
6612 rather than always using the current time.
6615 *) Phase 2 verify code reorganisation. The certificate
6616 verify code now looks up an issuer certificate by a
6617 number of criteria: subject name, authority key id
6618 and key usage. It also verifies self signed certificates
6619 by the same criteria. The main comparison function is
6620 X509_check_issued() which performs these checks.
6622 Lot of changes were necessary in order to support this
6623 without completely rewriting the lookup code.
6625 Authority and subject key identifier are now cached.
6627 The LHASH 'certs' is X509_STORE has now been replaced
6628 by a STACK_OF(X509_OBJECT). This is mainly because an
6629 LHASH can't store or retrieve multiple objects with
6630 the same hash value.
6632 As a result various functions (which were all internal
6633 use only) have changed to handle the new X509_STORE
6634 structure. This will break anything that messed round
6635 with X509_STORE internally.
6637 The functions X509_STORE_add_cert() now checks for an
6638 exact match, rather than just subject name.
6640 The X509_STORE API doesn't directly support the retrieval
6641 of multiple certificates matching a given criteria, however
6642 this can be worked round by performing a lookup first
6643 (which will fill the cache with candidate certificates)
6644 and then examining the cache for matches. This is probably
6645 the best we can do without throwing out X509_LOOKUP
6646 entirely (maybe later...).
6648 The X509_VERIFY_CTX structure has been enhanced considerably.
6650 All certificate lookup operations now go via a get_issuer()
6651 callback. Although this currently uses an X509_STORE it
6652 can be replaced by custom lookups. This is a simple way
6653 to bypass the X509_STORE hackery necessary to make this
6654 work and makes it possible to use more efficient techniques
6655 in future. A very simple version which uses a simple
6656 STACK for its trusted certificate store is also provided
6657 using X509_STORE_CTX_trusted_stack().
6659 The verify_cb() and verify() callbacks now have equivalents
6660 in the X509_STORE_CTX structure.
6662 X509_STORE_CTX also has a 'flags' field which can be used
6663 to customise the verify behaviour.
6666 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6667 excludes S/MIME capabilities.
6670 *) When a certificate request is read in keep a copy of the
6671 original encoding of the signed data and use it when outputing
6672 again. Signatures then use the original encoding rather than
6673 a decoded, encoded version which may cause problems if the
6674 request is improperly encoded.
6677 *) For consistency with other BIO_puts implementations, call
6678 buffer_write(b, ...) directly in buffer_puts instead of calling
6681 In BIO_puts, increment b->num_write as in BIO_write.
6682 [Peter.Sylvester@EdelWeb.fr]
6684 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6685 BN_zero, we may not return a BIGNUM with an array consisting of
6689 *) Avoid calling abort() from within the library when problems are
6690 detected, except if preprocessor symbols have been defined
6691 (such as REF_CHECK, BN_DEBUG etc.).
6694 *) New openssl application 'rsautl'. This utility can be
6695 used for low level RSA operations. DER public key
6696 BIO/fp routines also added.
6699 *) New Configure entry and patches for compiling on QNX 4.
6700 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6702 *) A demo state-machine implementation was sponsored by
6703 Nuron (http://www.nuron.com/) and is now available in
6704 demos/state_machine.
6707 *) New options added to the 'dgst' utility for signature
6708 generation and verification.
6711 *) Unrecognized PKCS#7 content types are now handled via a
6712 catch all ASN1_TYPE structure. This allows unsupported
6713 types to be stored as a "blob" and an application can
6714 encode and decode it manually.
6717 *) Fix various signed/unsigned issues to make a_strex.c
6719 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6721 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6722 length if passed a buffer. ASN1_INTEGER_to_BN failed
6723 if passed a NULL BN and its argument was negative.
6724 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6726 *) Modification to PKCS#7 encoding routines to output definite
6727 length encoding. Since currently the whole structures are in
6728 memory there's not real point in using indefinite length
6729 constructed encoding. However if OpenSSL is compiled with
6730 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6733 *) Added BIO_vprintf() and BIO_vsnprintf().
6736 *) Added more prefixes to parse for in the the strings written
6737 through a logging bio, to cover all the levels that are available
6738 through syslog. The prefixes are now:
6740 PANIC, EMERG, EMR => LOG_EMERG
6741 ALERT, ALR => LOG_ALERT
6742 CRIT, CRI => LOG_CRIT
6743 ERROR, ERR => LOG_ERR
6744 WARNING, WARN, WAR => LOG_WARNING
6745 NOTICE, NOTE, NOT => LOG_NOTICE
6746 INFO, INF => LOG_INFO
6747 DEBUG, DBG => LOG_DEBUG
6749 and as before, if none of those prefixes are present at the
6750 beginning of the string, LOG_ERR is chosen.
6752 On Win32, the LOG_* levels are mapped according to this:
6754 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6755 LOG_WARNING => EVENTLOG_WARNING_TYPE
6756 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6760 *) Made it possible to reconfigure with just the configuration
6761 argument "reconf" or "reconfigure". The command line arguments
6762 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6763 and are retrieved from there when reconfiguring.
6767 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6769 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6772 *) The obj_dat.pl script was messing up the sorting of object
6773 names. The reason was that it compared the quoted version
6774 of strings as a result "OCSP" > "OCSP Signing" because
6775 " > SPACE. Changed script to store unquoted versions of
6776 names and add quotes on output. It was also omitting some
6777 names from the lookup table if they were given a default
6778 value (that is if SN is missing it is given the same
6779 value as LN and vice versa), these are now added on the
6780 grounds that if an object has a name we should be able to
6781 look it up. Finally added warning output when duplicate
6782 short or long names are found.
6785 *) Changes needed for Tandem NSK.
6786 [Scott Uroff <scott@xypro.com>]
6788 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6789 RSA_padding_check_SSLv23(), special padding was never detected
6790 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6791 version rollback attacks was not effective.
6793 In s23_clnt.c, don't use special rollback-attack detection padding
6794 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6795 client; similarly, in s23_srvr.c, don't do the rollback check if
6796 SSL 2.0 is the only protocol enabled in the server.
6799 *) Make it possible to get hexdumps of unprintable data with 'openssl
6800 asn1parse'. By implication, the functions ASN1_parse_dump() and
6801 BIO_dump_indent() are added.
6804 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6805 these print out strings and name structures based on various
6806 flags including RFC2253 support and proper handling of
6807 multibyte characters. Added options to the 'x509' utility
6808 to allow the various flags to be set.
6811 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6812 Also change the functions X509_cmp_current_time() and
6813 X509_gmtime_adj() work with an ASN1_TIME structure,
6814 this will enable certificates using GeneralizedTime in validity
6815 dates to be checked.
6818 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6819 negative public key encodings) on by default,
6820 NO_NEG_PUBKEY_BUG can be set to disable it.
6823 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6824 content octets. An i2c_ASN1_OBJECT is unnecessary because
6825 the encoding can be trivially obtained from the structure.
6828 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6829 not read locks (CRYPTO_r_[un]lock).
6832 *) A first attempt at creating official support for shared
6833 libraries through configuration. I've kept it so the
6834 default is static libraries only, and the OpenSSL programs
6835 are always statically linked for now, but there are
6836 preparations for dynamic linking in place.
6837 This has been tested on Linux and Tru64.
6840 *) Randomness polling function for Win9x, as described in:
6841 Peter Gutmann, Software Generation of Practically Strong
6845 *) Fix so PRNG is seeded in req if using an already existing
6849 *) New options to smime application. -inform and -outform
6850 allow alternative formats for the S/MIME message including
6851 PEM and DER. The -content option allows the content to be
6852 specified separately. This should allow things like Netscape
6853 form signing output easier to verify.
6856 *) Fix the ASN1 encoding of tags using the 'long form'.
6859 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6860 STRING types. These convert content octets to and from the
6861 underlying type. The actual tag and length octets are
6862 already assumed to have been read in and checked. These
6863 are needed because all other string types have virtually
6864 identical handling apart from the tag. By having versions
6865 of the ASN1 functions that just operate on content octets
6866 IMPLICIT tagging can be handled properly. It also allows
6867 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6868 and ASN1_INTEGER are identical apart from the tag.
6871 *) Change the handling of OID objects as follows:
6873 - New object identifiers are inserted in objects.txt, following
6874 the syntax given in objects.README.
6875 - objects.pl is used to process obj_mac.num and create a new
6877 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6880 This is currently kind of a hack, and the perl code in objects.pl
6881 isn't very elegant, but it works as I intended. The simplest way
6882 to check that it worked correctly is to look in obj_dat.h and
6883 check the array nid_objs and make sure the objects haven't moved
6884 around (this is important!). Additions are OK, as well as
6885 consistent name changes.
6888 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6891 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6892 The given file adds to whatever has already been seeded into the
6893 random pool through the RANDFILE configuration file option or
6894 environment variable, or the default random state file.
6897 *) mkstack.pl now sorts each macro group into lexical order.
6898 Previously the output order depended on the order the files
6899 appeared in the directory, resulting in needless rewriting
6903 *) Patches to make OpenSSL compile under Win32 again. Mostly
6904 work arounds for the VC++ problem that it treats func() as
6905 func(void). Also stripped out the parts of mkdef.pl that
6906 added extra typesafe functions: these no longer exist.
6909 *) Reorganisation of the stack code. The macros are now all
6910 collected in safestack.h . Each macro is defined in terms of
6911 a "stack macro" of the form SKM_<name>(type, a, b). The
6912 DEBUG_SAFESTACK is now handled in terms of function casts,
6913 this has the advantage of retaining type safety without the
6914 use of additional functions. If DEBUG_SAFESTACK is not defined
6915 then the non typesafe macros are used instead. Also modified the
6916 mkstack.pl script to handle the new form. Needs testing to see
6917 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6918 the default if no major problems. Similar behaviour for ASN1_SET_OF
6919 and PKCS12_STACK_OF.
6922 *) When some versions of IIS use the 'NET' form of private key the
6923 key derivation algorithm is different. Normally MD5(password) is
6924 used as a 128 bit RC4 key. In the modified case
6925 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6926 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6927 as the old Netscape_RSA functions except they have an additional
6928 'sgckey' parameter which uses the modified algorithm. Also added
6929 an -sgckey command line option to the rsa utility. Thanks to
6930 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6931 algorithm to openssl-dev.
6934 *) The evp_local.h macros were using 'c.##kname' which resulted in
6935 invalid expansion on some systems (SCO 5.0.5 for example).
6936 Corrected to 'c.kname'.
6937 [Phillip Porch <root@theporch.com>]
6939 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6940 a STACK of email addresses from a certificate or request, these look
6941 in the subject name and the subject alternative name extensions and
6942 omit any duplicate addresses.
6945 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6946 This makes DSA verification about 2 % faster.
6949 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6950 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6951 plus overhead for 1024 bit moduli).
6952 This makes exponentiations about 0.5 % faster for 1024 bit
6953 exponents (as measured by "openssl speed rsa2048").
6956 *) Rename memory handling macros to avoid conflicts with other
6958 Malloc => OPENSSL_malloc
6959 Malloc_locked => OPENSSL_malloc_locked
6960 Realloc => OPENSSL_realloc
6961 Free => OPENSSL_free
6964 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6965 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6968 *) CygWin32 support.
6969 [John Jarvie <jjarvie@newsguy.com>]
6971 *) The type-safe stack code has been rejigged. It is now only compiled
6972 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6973 by default all type-specific stack functions are "#define"d back to
6974 standard stack functions. This results in more streamlined output
6975 but retains the type-safety checking possibilities of the original
6979 *) The STACK code has been cleaned up, and certain type declarations
6980 that didn't make a lot of sense have been brought in line. This has
6981 also involved a cleanup of sorts in safestack.h to more correctly
6982 map type-safe stack functions onto their plain stack counterparts.
6983 This work has also resulted in a variety of "const"ifications of
6984 lots of the code, especially "_cmp" operations which should normally
6985 be prototyped with "const" parameters anyway.
6988 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6989 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6990 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6991 where all of 'md' is used each time the PRNG is used, but 'state'
6992 is used only indexed by a cyclic counter. As entropy may not be
6993 well distributed from the beginning, 'md' is important as a
6994 chaining variable. However, the output function chains only half
6995 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6996 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6997 in all of 'state' being rewritten, with the new values depending
6998 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7001 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7002 the handshake is continued after ssl_verify_cert_chain();
7003 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7004 can lead to 'unexplainable' connection aborts later.
7005 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7007 *) Major EVP API cipher revision.
7008 Add hooks for extra EVP features. This allows various cipher
7009 parameters to be set in the EVP interface. Support added for variable
7010 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7011 setting of RC2 and RC5 parameters.
7013 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7016 Remove lots of duplicated code from the EVP library. For example *every*
7017 cipher init() function handles the 'iv' in the same way according to the
7018 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7019 for CFB and OFB modes they zero ctx->num.
7021 New functionality allows removal of S/MIME code RC2 hack.
7023 Most of the routines have the same form and so can be declared in terms
7026 By shifting this to the top level EVP_CipherInit() it can be removed from
7027 all individual ciphers. If the cipher wants to handle IVs or keys
7028 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7031 Change lots of functions like EVP_EncryptUpdate() to now return a
7032 value: although software versions of the algorithms cannot fail
7033 any installed hardware versions can.
7036 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7037 this option is set, tolerate broken clients that send the negotiated
7038 protocol version number instead of the requested protocol version
7042 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7043 i.e. non-zero for export ciphersuites, zero otherwise.
7044 Previous versions had this flag inverted, inconsistent with
7045 rsa_tmp_cb (..._TMP_RSA_CB).
7046 [Bodo Moeller; problem reported by Amit Chopra]
7048 *) Add missing DSA library text string. Work around for some IIS
7049 key files with invalid SEQUENCE encoding.
7052 *) Add a document (doc/standards.txt) that list all kinds of standards
7053 and so on that are implemented in OpenSSL.
7056 *) Enhance c_rehash script. Old version would mishandle certificates
7057 with the same subject name hash and wouldn't handle CRLs at all.
7058 Added -fingerprint option to crl utility, to support new c_rehash
7062 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7065 *) Fix for SSL server purpose checking. Server checking was
7066 rejecting certificates which had extended key usage present
7067 but no ssl client purpose.
7068 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7070 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7071 is a little unclear about how a blank password is handled.
7072 Since the password in encoded as a BMPString with terminating
7073 double NULL a zero length password would end up as just the
7074 double NULL. However no password at all is different and is
7075 handled differently in the PKCS#12 key generation code. NS
7076 treats a blank password as zero length. MSIE treats it as no
7077 password on export: but it will try both on import. We now do
7078 the same: PKCS12_parse() tries zero length and no password if
7079 the password is set to "" or NULL (NULL is now a valid password:
7080 it wasn't before) as does the pkcs12 application.
7083 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7084 perror when PEM_read_bio_X509_REQ fails, the error message must
7085 be obtained from the error queue.
7088 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7089 it in ERR_remove_state if appropriate, and change ERR_get_state
7090 accordingly to avoid race conditions (this is necessary because
7091 thread_hash is no longer constant once set).
7094 *) Bugfix for linux-elf makefile.one.
7097 *) RSA_get_default_method() will now cause a default
7098 RSA_METHOD to be chosen if one doesn't exist already.
7099 Previously this was only set during a call to RSA_new()
7100 or RSA_new_method(NULL) meaning it was possible for
7101 RSA_get_default_method() to return NULL.
7104 *) Added native name translation to the existing DSO code
7105 that will convert (if the flag to do so is set) filenames
7106 that are sufficiently small and have no path information
7107 into a canonical native form. Eg. "blah" converted to
7108 "libblah.so" or "blah.dll" etc.
7111 *) New function ERR_error_string_n(e, buf, len) which is like
7112 ERR_error_string(e, buf), but writes at most 'len' bytes
7113 including the 0 terminator. For ERR_error_string_n, 'buf'
7115 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7117 *) CONF library reworked to become more general. A new CONF
7118 configuration file reader "class" is implemented as well as a
7119 new functions (NCONF_*, for "New CONF") to handle it. The now
7120 old CONF_* functions are still there, but are reimplemented to
7121 work in terms of the new functions. Also, a set of functions
7122 to handle the internal storage of the configuration data is
7123 provided to make it easier to write new configuration file
7124 reader "classes" (I can definitely see something reading a
7125 configuration file in XML format, for example), called _CONF_*,
7126 or "the configuration storage API"...
7128 The new configuration file reading functions are:
7130 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7131 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7133 NCONF_default, NCONF_WIN32
7135 NCONF_dump_fp, NCONF_dump_bio
7137 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7138 NCONF_new creates a new CONF object. This works in the same way
7139 as other interfaces in OpenSSL, like the BIO interface.
7140 NCONF_dump_* dump the internal storage of the configuration file,
7141 which is useful for debugging. All other functions take the same
7142 arguments as the old CONF_* functions wth the exception of the
7143 first that must be a `CONF *' instead of a `LHASH *'.
7145 To make it easer to use the new classes with the old CONF_* functions,
7146 the function CONF_set_default_method is provided.
7149 *) Add '-tls1' option to 'openssl ciphers', which was already
7150 mentioned in the documentation but had not been implemented.
7151 (This option is not yet really useful because even the additional
7152 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7155 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7156 OpenSSL-based applications) load shared libraries and bind to
7157 them in a portable way.
7158 [Geoff Thorpe, with contributions from Richard Levitte]
7160 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7162 *) Make sure _lrotl and _lrotr are only used with MSVC.
7164 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7165 (the default implementation of RAND_status).
7167 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7168 to '-clrext' (= clear extensions), as intended and documented.
7169 [Bodo Moeller; inconsistency pointed out by Michael Attili
7172 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7173 was larger than the MD block size.
7174 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7176 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7177 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7178 using the passed key: if the passed key was a private key the result
7179 of X509_print(), for example, would be to print out all the private key
7183 *) des_quad_cksum() byte order bug fix.
7184 [Ulf Möller, using the problem description in krb4-0.9.7, where
7185 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7187 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7189 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7191 *) For easily testing in shell scripts whether some command
7192 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7193 returns with exit code 0 iff no command of the given name is available.
7194 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7195 the output goes to stdout and nothing is printed to stderr.
7196 Additional arguments are always ignored.
7198 Since for each cipher there is a command of the same name,
7199 the 'no-cipher' compilation switches can be tested this way.
7201 ('openssl no-XXX' is not able to detect pseudo-commands such
7202 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7205 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7208 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7209 is set; it will be thrown away anyway because each handshake creates
7211 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7212 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7213 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7214 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7217 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7218 'Q' and 'R' lose their special meanings (quit/renegotiate).
7219 This is part of what -quiet does; unlike -quiet, -ign_eof
7220 does not suppress any output.
7223 *) Add compatibility options to the purpose and trust code. The
7224 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7225 accepts a certificate or CA, this was the previous behaviour,
7226 with all the associated security issues.
7228 X509_TRUST_COMPAT is the old trust behaviour: only and
7229 automatically trust self signed roots in certificate store. A
7230 new trust setting X509_TRUST_DEFAULT is used to specify that
7231 a purpose has no associated trust setting and it should instead
7232 use the value in the default purpose.
7235 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7236 and fix a memory leak.
7239 *) In util/mkerr.pl (which implements 'make errors'), preserve
7240 reason strings from the previous version of the .c file, as
7241 the default to have only downcase letters (and digits) in
7242 automatically generated reasons codes is not always appropriate.
7245 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7246 using strerror. Previously, ERR_reason_error_string() returned
7247 library names as reason strings for SYSerr; but SYSerr is a special
7248 case where small numbers are errno values, not library numbers.
7251 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7252 converts DSA parameters into DH parameters. (When creating parameters,
7253 DSA_generate_parameters is used.)
7256 *) Include 'length' (recommended exponent length) in C code generated
7257 by 'openssl dhparam -C'.
7260 *) The second argument to set_label in perlasm was already being used
7261 so couldn't be used as a "file scope" flag. Moved to third argument
7265 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7266 instead of RAND_bytes for encryption IVs and salts.
7269 *) Include RAND_status() into RAND_METHOD instead of implementing
7270 it only for md_rand.c Otherwise replacing the PRNG by calling
7271 RAND_set_rand_method would be impossible.
7274 *) Don't let DSA_generate_key() enter an infinite loop if the random
7275 number generation fails.
7278 *) New 'rand' application for creating pseudo-random output.
7281 *) Added configuration support for Linux/IA64
7282 [Rolf Haberrecker <rolf@suse.de>]
7284 *) Assembler module support for Mingw32.
7287 *) Shared library support for HPUX (in shlib/).
7288 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7290 *) Shared library support for Solaris gcc.
7291 [Lutz Behnke <behnke@trustcenter.de>]
7293 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7295 *) PKCS7_encrypt() was adding text MIME headers twice because they
7296 were added manually and by SMIME_crlf_copy().
7299 *) In bntest.c don't call BN_rand with zero bits argument.
7300 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7302 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7303 case was implemented. This caused BN_div_recp() to fail occasionally.
7306 *) Add an optional second argument to the set_label() in the perl
7307 assembly language builder. If this argument exists and is set
7308 to 1 it signals that the assembler should use a symbol whose
7309 scope is the entire file, not just the current function. This
7310 is needed with MASM which uses the format label:: for this scope.
7311 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7313 *) Change the ASN1 types so they are typedefs by default. Before
7314 almost all types were #define'd to ASN1_STRING which was causing
7315 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7319 *) Change names of new functions to the new get1/get0 naming
7320 convention: After 'get1', the caller owns a reference count
7321 and has to call ..._free; 'get0' returns a pointer to some
7322 data structure without incrementing reference counters.
7323 (Some of the existing 'get' functions increment a reference
7324 counter, some don't.)
7325 Similarly, 'set1' and 'add1' functions increase reference
7326 counters or duplicate objects.
7329 *) Allow for the possibility of temp RSA key generation failure:
7330 the code used to assume it always worked and crashed on failure.
7333 *) Fix potential buffer overrun problem in BIO_printf().
7334 [Ulf Möller, using public domain code by Patrick Powell; problem
7335 pointed out by David Sacerdote <das33@cornell.edu>]
7337 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7338 RAND_egd() and RAND_status(). In the command line application,
7339 the EGD socket can be specified like a seed file using RANDFILE
7343 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7344 Some CAs (e.g. Verisign) distribute certificates in this form.
7347 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7348 list to exclude them. This means that no special compilation option
7349 is needed to use anonymous DH: it just needs to be included in the
7353 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7354 EVP_MD_type. The old functionality is available in a new macro called
7355 EVP_MD_md(). Change code that uses it and update docs.
7358 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7359 where the 'void *' argument is replaced by a function pointer argument.
7360 Previously 'void *' was abused to point to functions, which works on
7361 many platforms, but is not correct. As these functions are usually
7362 called by macros defined in OpenSSL header files, most source code
7363 should work without changes.
7366 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7367 sections with information on -D... compiler switches used for
7368 compiling the library so that applications can see them. To enable
7369 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7370 must be defined. E.g.,
7371 #define OPENSSL_ALGORITHM_DEFINES
7372 #include <openssl/opensslconf.h>
7373 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7374 [Richard Levitte, Ulf and Bodo Möller]
7376 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7380 *) Change the 'other' type in certificate aux info to a STACK_OF
7381 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7382 the required ASN1 format: arbitrary types determined by an OID.
7385 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7386 argument to 'req'. This is not because the function is newer or
7387 better than others it just uses the work 'NEW' in the certificate
7388 request header lines. Some software needs this.
7391 *) Reorganise password command line arguments: now passwords can be
7392 obtained from various sources. Delete the PEM_cb function and make
7393 it the default behaviour: i.e. if the callback is NULL and the
7394 usrdata argument is not NULL interpret it as a null terminated pass
7395 phrase. If usrdata and the callback are NULL then the pass phrase
7396 is prompted for as usual.
7399 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7400 the support is automatically enabled. The resulting binaries will
7401 autodetect the card and use it if present.
7402 [Ben Laurie and Compaq Inc.]
7404 *) Work around for Netscape hang bug. This sends certificate request
7405 and server done in one record. Since this is perfectly legal in the
7406 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7407 the bugs/SSLv3 entry for more info.
7410 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7413 *) Add -rand argument to smime and pkcs12 applications and read/write
7417 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7420 *) Add command line password options to the remaining applications.
7423 *) Bug fix for BN_div_recp() for numerators with an even number of
7427 *) More tests in bntest.c, and changed test_bn output.
7430 *) ./config recognizes MacOS X now.
7433 *) Bug fix for BN_div() when the first words of num and divsor are
7434 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7437 *) Add support for various broken PKCS#8 formats, and command line
7438 options to produce them.
7441 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7442 get temporary BIGNUMs from a BN_CTX.
7445 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7449 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7450 include a #define from the old name to the new. The original intent
7451 was that statically linked binaries could for example just call
7452 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7453 link with digests. This never worked becayse SSLeay_add_all_digests()
7454 and SSLeay_add_all_ciphers() were in the same source file so calling
7455 one would link with the other. They are now in separate source files.
7458 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7461 *) Use a less unusual form of the Miller-Rabin primality test (it used
7462 a binary algorithm for exponentiation integrated into the Miller-Rabin
7463 loop, our standard modexp algorithms are faster).
7466 *) Support for the EBCDIC character set completed.
7467 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7469 *) Source code cleanups: use const where appropriate, eliminate casts,
7470 use void * instead of char * in lhash.
7473 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7474 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7475 this the server could overwrite ephemeral keys that the client
7479 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7480 using 50 iterations of the Rabin-Miller test.
7482 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7483 iterations of the Rabin-Miller test as required by the appendix
7484 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7485 As BN_is_prime_fasttest includes trial division, DSA parameter
7486 generation becomes much faster.
7488 This implies a change for the callback functions in DSA_is_prime
7489 and DSA_generate_parameters: The callback function is called once
7490 for each positive witness in the Rabin-Miller test, not just
7491 occasionally in the inner loop; and the parameters to the
7492 callback function now provide an iteration count for the outer
7493 loop rather than for the current invocation of the inner loop.
7494 DSA_generate_parameters additionally can call the callback
7495 function with an 'iteration count' of -1, meaning that a
7496 candidate has passed the trial division test (when q is generated
7497 from an application-provided seed, trial division is skipped).
7500 *) New function BN_is_prime_fasttest that optionally does trial
7501 division before starting the Rabin-Miller test and has
7502 an additional BN_CTX * argument (whereas BN_is_prime always
7503 has to allocate at least one BN_CTX).
7504 'callback(1, -1, cb_arg)' is called when a number has passed the
7505 trial division stage.
7508 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7512 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7515 *) New function BN_pseudo_rand().
7518 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7519 bignum version of BN_from_montgomery() with the working code from
7520 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7524 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7525 made it impossible to use the same SSL_SESSION data structure in
7526 SSL2 clients in multiple threads.
7529 *) The return value of RAND_load_file() no longer counts bytes obtained
7530 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7531 to seed the PRNG (previously an explicit byte count was required).
7532 [Ulf Möller, Bodo Möller]
7534 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7535 used (char *) instead of (void *) and had casts all over the place.
7538 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7541 *) Retain source code compatibility for BN_prime_checks macro:
7542 BN_is_prime(..., BN_prime_checks, ...) now uses
7543 BN_prime_checks_for_size to determine the appropriate number of
7544 Rabin-Miller iterations.
7547 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7548 DH_CHECK_P_NOT_SAFE_PRIME.
7549 (Check if this is true? OpenPGP calls them "strong".)
7552 *) Merge the functionality of "dh" and "gendh" programs into a new program
7553 "dhparam". The old programs are retained for now but will handle DH keys
7554 (instead of parameters) in future.
7557 *) Make the ciphers, s_server and s_client programs check the return values
7558 when a new cipher list is set.
7561 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7562 ciphers. Before when the 56bit ciphers were enabled the sorting was
7565 The syntax for the cipher sorting has been extended to support sorting by
7566 cipher-strength (using the strength_bits hard coded in the tables).
7567 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7569 Fix a bug in the cipher-command parser: when supplying a cipher command
7570 string with an "undefined" symbol (neither command nor alphanumeric
7571 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7572 an error is flagged.
7574 Due to the strength-sorting extension, the code of the
7575 ssl_create_cipher_list() function was completely rearranged. I hope that
7576 the readability was also increased :-)
7577 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7579 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7580 for the first serial number and places 2 in the serial number file. This
7581 avoids problems when the root CA is created with serial number zero and
7582 the first user certificate has the same issuer name and serial number
7586 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7587 the new code. Add documentation for this stuff.
7590 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7591 X509_*() to X509at_*() on the grounds that they don't handle X509
7592 structures and behave in an analagous way to the X509v3 functions:
7593 they shouldn't be called directly but wrapper functions should be used
7596 So we also now have some wrapper functions that call the X509at functions
7597 when passed certificate requests. (TO DO: similar things can be done with
7598 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7599 things. Some of these need some d2i or i2d and print functionality
7600 because they handle more complex structures.)
7603 *) Add missing #ifndefs that caused missing symbols when building libssl
7604 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7605 NO_RSA in ssl/s2*.c.
7606 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7608 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7609 has a return value which indicates the quality of the random data
7610 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7611 error queue. New function RAND_pseudo_bytes() generates output that is
7612 guaranteed to be unique but not unpredictable. RAND_add is like
7613 RAND_seed, but takes an extra argument for an entropy estimate
7614 (RAND_seed always assumes full entropy).
7617 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7618 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7619 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7620 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7621 false-positive rate of at most 2^-80 for random input.
7624 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7627 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7628 in the 0.9.5 release), this returns the chain
7629 from an X509_CTX structure with a dup of the stack and all
7630 the X509 reference counts upped: so the stack will exist
7631 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7634 Also make SSL_SESSION_print() print out the verify return
7638 *) Add manpage for the pkcs12 command. Also change the default
7639 behaviour so MAC iteration counts are used unless the new
7640 -nomaciter option is used. This improves file security and
7641 only older versions of MSIE (4.0 for example) need it.
7644 *) Honor the no-xxx Configure options when creating .DEF files.
7647 *) Add PKCS#10 attributes to field table: challengePassword,
7648 unstructuredName and unstructuredAddress. These are taken from
7649 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7650 international characters are used.
7652 More changes to X509_ATTRIBUTE code: allow the setting of types
7653 based on strings. Remove the 'loc' parameter when adding
7654 attributes because these will be a SET OF encoding which is sorted
7658 *) Initial changes to the 'req' utility to allow request generation
7659 automation. This will allow an application to just generate a template
7660 file containing all the field values and have req construct the
7663 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7664 used all over the place including certificate requests and PKCS#7
7665 structures. They are currently handled manually where necessary with
7666 some primitive wrappers for PKCS#7. The new functions behave in a
7667 manner analogous to the X509 extension functions: they allow
7668 attributes to be looked up by NID and added.
7670 Later something similar to the X509V3 code would be desirable to
7671 automatically handle the encoding, decoding and printing of the
7672 more complex types. The string types like challengePassword can
7673 be handled by the string table functions.
7675 Also modified the multi byte string table handling. Now there is
7676 a 'global mask' which masks out certain types. The table itself
7677 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7678 is useful when for example there is only one permissible type
7679 (as in countryName) and using the mask might result in no valid
7683 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7684 SSL_get_peer_finished to allow applications to obtain the latest
7685 Finished messages sent to the peer or expected from the peer,
7686 respectively. (SSL_get_peer_finished is usually the Finished message
7687 actually received from the peer, otherwise the protocol will be aborted.)
7689 As the Finished message are message digests of the complete handshake
7690 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7691 be used for external authentication procedures when the authentication
7692 provided by SSL/TLS is not desired or is not enough.
7695 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7696 the host supports BWX extension and if Compaq C is present on the
7697 $PATH. Just exploiting of the BWX extension results in 20-30%
7698 performance kick for some algorithms, e.g. DES and RC4 to mention
7699 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7703 *) Add support for MS "fast SGC". This is arguably a violation of the
7704 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7705 weak crypto and after checking the certificate is SGC a second one
7706 with strong crypto. MS SGC stops the first handshake after receiving
7707 the server certificate message and sends a second client hello. Since
7708 a server will typically do all the time consuming operations before
7709 expecting any further messages from the client (server key exchange
7710 is the most expensive) there is little difference between the two.
7712 To get OpenSSL to support MS SGC we have to permit a second client
7713 hello message after we have sent server done. In addition we have to
7714 reset the MAC if we do get this second client hello.
7717 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7718 if a DER encoded private key is RSA or DSA traditional format. Changed
7719 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7720 format DER encoded private key. Newer code should use PKCS#8 format which
7721 has the key type encoded in the ASN1 structure. Added DER private key
7722 support to pkcs8 application.
7725 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7726 ciphersuites has been selected (as required by the SSL 3/TLS 1
7727 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7728 is set, we interpret this as a request to violate the specification
7729 (the worst that can happen is a handshake failure, and 'correct'
7730 behaviour would result in a handshake failure anyway).
7733 *) In SSL_CTX_add_session, take into account that there might be multiple
7734 SSL_SESSION structures with the same session ID (e.g. when two threads
7735 concurrently obtain them from an external cache).
7736 The internal cache can handle only one SSL_SESSION with a given ID,
7737 so if there's a conflict, we now throw out the old one to achieve
7741 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7742 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7743 some routines that use cipher OIDs: some ciphers do not have OIDs
7744 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7748 *) Simplify the trust setting structure and code. Now we just have
7749 two sequences of OIDs for trusted and rejected settings. These will
7750 typically have values the same as the extended key usage extension
7751 and any application specific purposes.
7753 The trust checking code now has a default behaviour: it will just
7754 check for an object with the same NID as the passed id. Functions can
7755 be provided to override either the default behaviour or the behaviour
7756 for a given id. SSL client, server and email already have functions
7757 in place for compatibility: they check the NID and also return "trusted"
7758 if the certificate is self signed.
7761 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7762 traditional format into an EVP_PKEY structure.
7765 *) Add a password callback function PEM_cb() which either prompts for
7766 a password if usr_data is NULL or otherwise assumes it is a null
7767 terminated password. Allow passwords to be passed on command line
7768 environment or config files in a few more utilities.
7771 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7772 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7773 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7774 Update documentation.
7777 *) Support for ASN1 "NULL" type. This could be handled before by using
7778 ASN1_TYPE but there wasn't any function that would try to read a NULL
7779 and produce an error if it couldn't. For compatibility we also have
7780 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7781 don't allocate anything because they don't need to.
7784 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7786 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7788 *) Rebuild of the memory allocation routines used by OpenSSL code and
7789 possibly others as well. The purpose is to make an interface that
7790 provide hooks so anyone can build a separate set of allocation and
7791 deallocation routines to be used by OpenSSL, for example memory
7792 pool implementations, or something else, which was previously hard
7793 since Malloc(), Realloc() and Free() were defined as macros having
7794 the values malloc, realloc and free, respectively (except for Win32
7795 compilations). The same is provided for memory debugging code.
7796 OpenSSL already comes with functionality to find memory leaks, but
7797 this gives people a chance to debug other memory problems.
7799 With these changes, a new set of functions and macros have appeared:
7801 CRYPTO_set_mem_debug_functions() [F]
7802 CRYPTO_get_mem_debug_functions() [F]
7803 CRYPTO_dbg_set_options() [F]
7804 CRYPTO_dbg_get_options() [F]
7805 CRYPTO_malloc_debug_init() [M]
7807 The memory debug functions are NULL by default, unless the library
7808 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7809 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7810 gives the standard debugging functions that come with OpenSSL) or
7811 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7812 provided by the library user) must be used. When the standard
7813 debugging functions are used, CRYPTO_dbg_set_options can be used to
7814 request additional information:
7815 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7816 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7818 Also, things like CRYPTO_set_mem_functions will always give the
7819 expected result (the new set of functions is used for allocation
7820 and deallocation) at all times, regardless of platform and compiler
7823 To finish it up, some functions that were never use in any other
7824 way than through macros have a new API and new semantic:
7827 CRYPTO_dbg_realloc()
7830 All macros of value have retained their old syntax.
7831 [Richard Levitte and Bodo Moeller]
7833 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7834 ordering of SMIMECapabilities wasn't in "strength order" and there
7835 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7839 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7840 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7841 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7843 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7844 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7845 functionality to handle multipart/signed properly) and a utility
7846 called 'smime' to call all this stuff. This is based on code I
7847 originally wrote for Celo who have kindly allowed it to be
7848 included in OpenSSL.
7851 *) Add variants des_set_key_checked and des_set_key_unchecked of
7852 des_set_key (aka des_key_sched). Global variable des_check_key
7853 decides which of these is called by des_set_key; this way
7854 des_check_key behaves as it always did, but applications and
7855 the library itself, which was buggy for des_check_key == 1,
7856 have a cleaner way to pick the version they need.
7859 *) New function PKCS12_newpass() which changes the password of a
7863 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7864 dynamic mix. In both cases the ids can be used as an index into the
7865 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7866 functions so they accept a list of the field values and the
7867 application doesn't need to directly manipulate the X509_TRUST
7871 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7875 *) Modify the way the V3 extension code looks up extensions. This now
7876 works in a similar way to the object code: we have some "standard"
7877 extensions in a static table which is searched with OBJ_bsearch()
7878 and the application can add dynamic ones if needed. The file
7879 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7880 updated whenever a new extension is added to the core code and kept
7881 in ext_nid order. There is a simple program 'tabtest.c' which checks
7882 this. New extensions are not added too often so this file can readily
7883 be maintained manually.
7885 There are two big advantages in doing things this way. The extensions
7886 can be looked up immediately and no longer need to be "added" using
7887 X509V3_add_standard_extensions(): this function now does nothing.
7888 [Side note: I get *lots* of email saying the extension code doesn't
7889 work because people forget to call this function]
7890 Also no dynamic allocation is done unless new extensions are added:
7891 so if we don't add custom extensions there is no need to call
7892 X509V3_EXT_cleanup().
7895 *) Modify enc utility's salting as follows: make salting the default. Add a
7896 magic header, so unsalted files fail gracefully instead of just decrypting
7897 to garbage. This is because not salting is a big security hole, so people
7898 should be discouraged from doing it.
7901 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7902 digest to be passed on the command line but it only used this
7903 parameter when signing a certificate. Modified so all relevant
7904 operations are affected by the digest parameter including the
7905 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7906 DSA key was used because it didn't fix the digest.
7909 *) Initial certificate chain verify code. Currently tests the untrusted
7910 certificates for consistency with the verify purpose (which is set
7911 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7913 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7914 this is because it will reject chains with invalid extensions whereas
7915 every previous version of OpenSSL and SSLeay made no checks at all.
7917 Trust code: checks the root CA for the relevant trust settings. Trust
7918 settings have an initial value consistent with the verify purpose: e.g.
7919 if the verify purpose is for SSL client use it expects the CA to be
7920 trusted for SSL client use. However the default value can be changed to
7921 permit custom trust settings: one example of this would be to only trust
7922 certificates from a specific "secure" set of CAs.
7924 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7925 which should be used for version portability: especially since the
7926 verify structure is likely to change more often now.
7928 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7929 to set them. If not set then assume SSL clients will verify SSL servers
7932 Two new options to the verify program: -untrusted allows a set of
7933 untrusted certificates to be passed in and -purpose which sets the
7934 intended purpose of the certificate. If a purpose is set then the
7935 new chain verify code is used to check extension consistency.
7938 *) Support for the authority information access extension.
7941 *) Modify RSA and DSA PEM read routines to transparently handle
7942 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7943 public keys in a format compatible with certificate
7944 SubjectPublicKeyInfo structures. Unfortunately there were already
7945 functions called *_PublicKey_* which used various odd formats so
7946 these are retained for compatibility: however the DSA variants were
7947 never in a public release so they have been deleted. Changed dsa/rsa
7948 utilities to handle the new format: note no releases ever handled public
7949 keys so we should be OK.
7951 The primary motivation for this change is to avoid the same fiasco
7952 that dogs private keys: there are several incompatible private key
7953 formats some of which are standard and some OpenSSL specific and
7954 require various evil hacks to allow partial transparent handling and
7955 even then it doesn't work with DER formats. Given the option anything
7956 other than PKCS#8 should be dumped: but the other formats have to
7957 stay in the name of compatibility.
7959 With public keys and the benefit of hindsight one standard format
7960 is used which works with EVP_PKEY, RSA or DSA structures: though
7961 it clearly returns an error if you try to read the wrong kind of key.
7963 Added a -pubkey option to the 'x509' utility to output the public key.
7964 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7965 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7966 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7967 that do the same as the EVP_PKEY_assign_*() except they up the
7968 reference count of the added key (they don't "swallow" the
7972 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7973 CRLs would fail if the file contained no certificates or no CRLs:
7974 added a new function to read in both types and return the number
7975 read: this means that if none are read it will be an error. The
7976 DER versions of the certificate and CRL reader would always fail
7977 because it isn't possible to mix certificates and CRLs in DER format
7978 without choking one or the other routine. Changed this to just read
7979 a certificate: this is the best we can do. Also modified the code
7980 in apps/verify.c to take notice of return codes: it was previously
7981 attempting to read in certificates from NULL pointers and ignoring
7982 any errors: this is one reason why the cert and CRL reader seemed
7983 to work. It doesn't check return codes from the default certificate
7984 routines: these may well fail if the certificates aren't installed.
7987 *) Code to support otherName option in GeneralName.
7990 *) First update to verify code. Change the verify utility
7991 so it warns if it is passed a self signed certificate:
7992 for consistency with the normal behaviour. X509_verify
7993 has been modified to it will now verify a self signed
7994 certificate if *exactly* the same certificate appears
7995 in the store: it was previously impossible to trust a
7996 single self signed certificate. This means that:
7997 openssl verify ss.pem
7998 now gives a warning about a self signed certificate but
7999 openssl verify -CAfile ss.pem ss.pem
8003 *) For servers, store verify_result in SSL_SESSION data structure
8004 (and add it to external session representation).
8005 This is needed when client certificate verifications fails,
8006 but an application-provided verification callback (set by
8007 SSL_CTX_set_cert_verify_callback) allows accepting the session
8008 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8009 but returns 1): When the session is reused, we have to set
8010 ssl->verify_result to the appropriate error code to avoid
8012 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8014 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8015 case in PKCS7_dataInit() where the signed PKCS7 structure
8016 didn't contain any existing data because it was being created.
8017 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8019 *) Add a salt to the key derivation routines in enc.c. This
8020 forms the first 8 bytes of the encrypted file. Also add a
8021 -S option to allow a salt to be input on the command line.
8024 *) New function X509_cmp(). Oddly enough there wasn't a function
8025 to compare two certificates. We do this by working out the SHA1
8026 hash and comparing that. X509_cmp() will be needed by the trust
8030 *) SSL_get1_session() is like SSL_get_session(), but increments
8031 the reference count in the SSL_SESSION returned.
8032 [Geoff Thorpe <geoff@eu.c2.net>]
8034 *) Fix for 'req': it was adding a null to request attributes.
8035 Also change the X509_LOOKUP and X509_INFO code to handle
8036 certificate auxiliary information.
8039 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8043 *) Add the possibility to add extra information to the memory leak
8044 detecting output, to form tracebacks, showing from where each
8045 allocation was originated: CRYPTO_push_info("constant string") adds
8046 the string plus current file name and line number to a per-thread
8047 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8048 is like calling CYRPTO_pop_info() until the stack is empty.
8049 Also updated memory leak detection code to be multi-thread-safe.
8052 *) Add options -text and -noout to pkcs7 utility and delete the
8053 encryption options which never did anything. Update docs.
8056 *) Add options to some of the utilities to allow the pass phrase
8057 to be included on either the command line (not recommended on
8058 OSes like Unix) or read from the environment. Update the
8059 manpages and fix a few bugs.
8062 *) Add a few manpages for some of the openssl commands.
8065 *) Fix the -revoke option in ca. It was freeing up memory twice,
8066 leaking and not finding already revoked certificates.
8069 *) Extensive changes to support certificate auxiliary information.
8070 This involves the use of X509_CERT_AUX structure and X509_AUX
8071 functions. An X509_AUX function such as PEM_read_X509_AUX()
8072 can still read in a certificate file in the usual way but it
8073 will also read in any additional "auxiliary information". By
8074 doing things this way a fair degree of compatibility can be
8075 retained: existing certificates can have this information added
8076 using the new 'x509' options.
8078 Current auxiliary information includes an "alias" and some trust
8079 settings. The trust settings will ultimately be used in enhanced
8080 certificate chain verification routines: currently a certificate
8081 can only be trusted if it is self signed and then it is trusted
8085 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8086 The problem was that one of the replacement routines had not been working
8087 since SSLeay releases. For now the offending routine has been replaced
8088 with non-optimised assembler. Even so, this now gives around 95%
8089 performance improvement for 1024 bit RSA signs.
8092 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8093 handling. Most clients have the effective key size in bits equal to
8094 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8095 A few however don't do this and instead use the size of the decrypted key
8096 to determine the RC2 key length and the AlgorithmIdentifier to determine
8097 the effective key length. In this case the effective key length can still
8098 be 40 bits but the key length can be 168 bits for example. This is fixed
8099 by manually forcing an RC2 key into the EVP_PKEY structure because the
8100 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8101 the key length and effective key length are equal.
8104 *) Add a bunch of functions that should simplify the creation of
8105 X509_NAME structures. Now you should be able to do:
8106 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8107 and have it automatically work out the correct field type and fill in
8108 the structures. The more adventurous can try:
8109 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8110 and it will (hopefully) work out the correct multibyte encoding.
8113 *) Change the 'req' utility to use the new field handling and multibyte
8114 copy routines. Before the DN field creation was handled in an ad hoc
8115 way in req, ca, and x509 which was rather broken and didn't support
8116 BMPStrings or UTF8Strings. Since some software doesn't implement
8117 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8118 using the dirstring_type option. See the new comment in the default
8119 openssl.cnf for more info.
8122 *) Make crypto/rand/md_rand.c more robust:
8123 - Assure unique random numbers after fork().
8124 - Make sure that concurrent threads access the global counter and
8125 md serializably so that we never lose entropy in them
8126 or use exactly the same state in multiple threads.
8127 Access to the large state is not always serializable because
8128 the additional locking could be a performance killer, and
8129 md should be large enough anyway.
8132 *) New file apps/app_rand.c with commonly needed functionality
8133 for handling the random seed file.
8135 Use the random seed file in some applications that previously did not:
8137 dsaparam -genkey (which also ignored its '-rand' option),
8140 x509 (when signing).
8141 Except on systems with /dev/urandom, it is crucial to have a random
8142 seed file at least for key creation, DSA signing, and for DH exchanges;
8143 for RSA signatures we could do without one.
8145 gendh and gendsa (unlike genrsa) used to read only the first byte
8146 of each file listed in the '-rand' option. The function as previously
8147 found in genrsa is now in app_rand.c and is used by all programs
8148 that support '-rand'.
8151 *) In RAND_write_file, use mode 0600 for creating files;
8152 don't just chmod when it may be too late.
8155 *) Report an error from X509_STORE_load_locations
8156 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8159 *) New function ASN1_mbstring_copy() this copies a string in either
8160 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8161 into an ASN1_STRING type. A mask of permissible types is passed
8162 and it chooses the "minimal" type to use or an error if not type
8166 *) Add function equivalents to the various macros in asn1.h. The old
8167 macros are retained with an M_ prefix. Code inside the library can
8168 use the M_ macros. External code (including the openssl utility)
8169 should *NOT* in order to be "shared library friendly".
8172 *) Add various functions that can check a certificate's extensions
8173 to see if it usable for various purposes such as SSL client,
8174 server or S/MIME and CAs of these types. This is currently
8175 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8176 verification. Also added a -purpose flag to x509 utility to
8177 print out all the purposes.
8180 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8184 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8185 for, obtain and decode and extension and obtain its critical flag.
8186 This allows all the necessary extension code to be handled in a
8187 single function call.
8190 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8191 platforms. See crypto/rc4/rc4_enc.c for further details.
8194 *) New -noout option to asn1parse. This causes no output to be produced
8195 its main use is when combined with -strparse and -out to extract data
8196 from a file (which may not be in ASN.1 format).
8199 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8200 when producing the local key id.
8201 [Richard Levitte <levitte@stacken.kth.se>]
8203 *) New option -dhparam in s_server. This allows a DH parameter file to be
8204 stated explicitly. If it is not stated then it tries the first server
8205 certificate file. The previous behaviour hard coded the filename
8209 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8210 a public key to be input or output. For example:
8211 openssl rsa -in key.pem -pubout -out pubkey.pem
8212 Also added necessary DSA public key functions to handle this.
8215 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8216 in the message. This was handled by allowing
8217 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8218 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8220 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8221 to the end of the strings whereas this didn't. This would cause problems
8222 if strings read with d2i_ASN1_bytes() were later modified.
8223 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8225 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8226 data and it contains EOF it will end up returning an error. This is
8227 caused by input 46 bytes long. The cause is due to the way base64
8228 BIOs find the start of base64 encoded data. They do this by trying a
8229 trial decode on each line until they find one that works. When they
8230 do a flag is set and it starts again knowing it can pass all the
8231 data directly through the decoder. Unfortunately it doesn't reset
8232 the context it uses. This means that if EOF is reached an attempt
8233 is made to pass two EOFs through the context and this causes the
8234 resulting error. This can also cause other problems as well. As is
8235 usual with these problems it takes *ages* to find and the fix is
8236 trivial: move one line.
8237 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8239 *) Ugly workaround to get s_client and s_server working under Windows. The
8240 old code wouldn't work because it needed to select() on sockets and the
8241 tty (for keypresses and to see if data could be written). Win32 only
8242 supports select() on sockets so we select() with a 1s timeout on the
8243 sockets and then see if any characters are waiting to be read, if none
8244 are present then we retry, we also assume we can always write data to
8245 the tty. This isn't nice because the code then blocks until we've
8246 received a complete line of data and it is effectively polling the
8247 keyboard at 1s intervals: however it's quite a bit better than not
8248 working at all :-) A dedicated Windows application might handle this
8249 with an event loop for example.
8252 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8253 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8254 will be called when RSA_sign() and RSA_verify() are used. This is useful
8255 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8256 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8257 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8258 This necessitated the support of an extra signature type NID_md5_sha1
8259 for SSL signatures and modifications to the SSL library to use it instead
8260 of calling RSA_public_decrypt() and RSA_private_encrypt().
8263 *) Add new -verify -CAfile and -CApath options to the crl program, these
8264 will lookup a CRL issuers certificate and verify the signature in a
8265 similar way to the verify program. Tidy up the crl program so it
8266 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8267 less strict. It will now permit CRL extensions even if it is not
8268 a V2 CRL: this will allow it to tolerate some broken CRLs.
8271 *) Initialize all non-automatic variables each time one of the openssl
8272 sub-programs is started (this is necessary as they may be started
8273 multiple times from the "OpenSSL>" prompt).
8274 [Lennart Bang, Bodo Moeller]
8276 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8277 removing all other RSA functionality (this is what NO_RSA does). This
8278 is so (for example) those in the US can disable those operations covered
8279 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8283 *) Non-copying interface to BIO pairs.
8284 (still largely untested)
8287 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8288 ASCII string. This was handled independently in various places before.
8291 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8292 UTF8 strings a character at a time.
8295 *) Use client_version from client hello to select the protocol
8296 (s23_srvr.c) and for RSA client key exchange verification
8297 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8300 *) Add various utility functions to handle SPKACs, these were previously
8301 handled by poking round in the structure internals. Added new function
8302 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8303 print, verify and generate SPKACs. Based on an original idea from
8304 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8307 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8310 *) Allow the config file extension section to be overwritten on the
8311 command line. Based on an original idea from Massimiliano Pala
8312 <madwolf@comune.modena.it>. The new option is called -extensions
8313 and can be applied to ca, req and x509. Also -reqexts to override
8314 the request extensions in req and -crlexts to override the crl extensions
8318 *) Add new feature to the SPKAC handling in ca. Now you can include
8319 the same field multiple times by preceding it by "XXXX." for example:
8322 this is the same syntax as used in the req config file.
8325 *) Allow certificate extensions to be added to certificate requests. These
8326 are specified in a 'req_extensions' option of the req section of the
8327 config file. They can be printed out with the -text option to req but
8328 are otherwise ignored at present.
8331 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8332 data read consists of only the final block it would not decrypted because
8333 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8334 A misplaced 'break' also meant the decrypted final block might not be
8335 copied until the next read.
8338 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8339 a few extra parameters to the DH structure: these will be useful if
8340 for example we want the value of 'q' or implement X9.42 DH.
8343 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8344 provides hooks that allow the default DSA functions or functions on a
8345 "per key" basis to be replaced. This allows hardware acceleration and
8346 hardware key storage to be handled without major modification to the
8347 library. Also added low level modexp hooks and CRYPTO_EX structure and
8348 associated functions.
8351 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8352 as "read only": it can't be written to and the buffer it points to will
8353 not be freed. Reading from a read only BIO is much more efficient than
8354 a normal memory BIO. This was added because there are several times when
8355 an area of memory needs to be read from a BIO. The previous method was
8356 to create a memory BIO and write the data to it, this results in two
8357 copies of the data and an O(n^2) reading algorithm. There is a new
8358 function BIO_new_mem_buf() which creates a read only memory BIO from
8359 an area of memory. Also modified the PKCS#7 routines to use read only
8363 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8364 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8365 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8366 but a retry condition occured while trying to read the rest.
8369 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8370 NID_pkcs7_encrypted by default: this was wrong since this should almost
8371 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8372 the encrypted data type: this is a more sensible place to put it and it
8373 allows the PKCS#12 code to be tidied up that duplicated this
8377 *) Changed obj_dat.pl script so it takes its input and output files on
8378 the command line. This should avoid shell escape redirection problems
8382 *) Initial support for certificate extension requests, these are included
8383 in things like Xenroll certificate requests. Included functions to allow
8384 extensions to be obtained and added.
8387 *) -crlf option to s_client and s_server for sending newlines as
8388 CRLF (as required by many protocols).
8391 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8393 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8394 [Ralf S. Engelschall]
8396 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8397 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8399 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8403 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8404 DH parameters/keys (q is lost during that conversion, but the resulting
8405 DH parameters contain its length).
8407 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8408 much faster than DH_generate_parameters (which creates parameters
8409 where p = 2*q + 1), and also the smaller q makes DH computations
8410 much more efficient (160-bit exponentiation instead of 1024-bit
8411 exponentiation); so this provides a convenient way to support DHE
8412 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8413 utter importance to use
8414 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8416 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8417 when such DH parameters are used, because otherwise small subgroup
8418 attacks may become possible!
8421 *) Avoid memory leak in i2d_DHparams.
8424 *) Allow the -k option to be used more than once in the enc program:
8425 this allows the same encrypted message to be read by multiple recipients.
8428 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8429 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8430 it will always use the numerical form of the OID, even if it has a short
8434 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8435 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8436 otherwise bn_mod_exp was called. In the case of hardware keys for example
8437 no private key components need be present and it might store extra data
8438 in the RSA structure, which cannot be accessed from bn_mod_exp.
8439 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8440 private key operations.
8443 *) Added support for SPARC Linux.
8446 *) pem_password_cb function type incompatibly changed from
8447 typedef int pem_password_cb(char *buf, int size, int rwflag);
8449 ....(char *buf, int size, int rwflag, void *userdata);
8450 so that applications can pass data to their callbacks:
8451 The PEM[_ASN1]_{read,write}... functions and macros now take an
8452 additional void * argument, which is just handed through whenever
8453 the password callback is called.
8454 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8456 New function SSL_CTX_set_default_passwd_cb_userdata.
8458 Compatibility note: As many C implementations push function arguments
8459 onto the stack in reverse order, the new library version is likely to
8460 interoperate with programs that have been compiled with the old
8461 pem_password_cb definition (PEM_whatever takes some data that
8462 happens to be on the stack as its last argument, and the callback
8463 just ignores this garbage); but there is no guarantee whatsoever that
8466 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8467 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8468 problems not only on Windows, but also on some Unix platforms.
8469 To avoid problematic command lines, these definitions are now in an
8470 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8471 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8474 *) MIPS III/IV assembler module is reimplemented.
8477 *) More DES library cleanups: remove references to srand/rand and
8478 delete an unused file.
8481 *) Add support for the the free Netwide assembler (NASM) under Win32,
8482 since not many people have MASM (ml) and it can be hard to obtain.
8483 This is currently experimental but it seems to work OK and pass all
8484 the tests. Check out INSTALL.W32 for info.
8487 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8488 without temporary keys kept an extra copy of the server key,
8489 and connections with temporary keys did not free everything in case
8493 *) New function RSA_check_key and new openssl rsa option -check
8494 for verifying the consistency of RSA keys.
8495 [Ulf Moeller, Bodo Moeller]
8497 *) Various changes to make Win32 compile work:
8498 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8499 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8500 comparison" warnings.
8501 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8504 *) Add a debugging option to PKCS#5 v2 key generation function: when
8505 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8506 derived keys are printed to stderr.
8509 *) Copy the flags in ASN1_STRING_dup().
8510 [Roman E. Pavlov <pre@mo.msk.ru>]
8512 *) The x509 application mishandled signing requests containing DSA
8513 keys when the signing key was also DSA and the parameters didn't match.
8515 It was supposed to omit the parameters when they matched the signing key:
8516 the verifying software was then supposed to automatically use the CA's
8517 parameters if they were absent from the end user certificate.
8519 Omitting parameters is no longer recommended. The test was also
8520 the wrong way round! This was probably due to unusual behaviour in
8521 EVP_cmp_parameters() which returns 1 if the parameters match.
8522 This meant that parameters were omitted when they *didn't* match and
8523 the certificate was useless. Certificates signed with 'ca' didn't have
8525 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8527 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8528 The interface is as follows:
8529 Applications can use
8530 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8531 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8532 "off" is now the default.
8533 The library internally uses
8534 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8535 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8536 to disable memory-checking temporarily.
8538 Some inconsistent states that previously were possible (and were
8539 even the default) are now avoided.
8541 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8542 with each memory chunk allocated; this is occasionally more helpful
8543 than just having a counter.
8545 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8547 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8551 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8552 which largely parallels "options", but is for changing API behaviour,
8553 whereas "options" are about protocol behaviour.
8554 Initial "mode" flags are:
8556 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8557 a single record has been written.
8558 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8559 retries use the same buffer location.
8560 (But all of the contents must be
8564 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8567 *) Fix problems with no-hmac etc.
8568 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8570 *) New functions RSA_get_default_method(), RSA_set_method() and
8571 RSA_get_method(). These allows replacement of RSA_METHODs without having
8572 to mess around with the internals of an RSA structure.
8575 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8576 Also really enable memory leak checks in openssl.c and in some
8578 [Chad C. Mulligan, Bodo Moeller]
8580 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8581 up the length of negative integers. This has now been simplified to just
8582 store the length when it is first determined and use it later, rather
8583 than trying to keep track of where data is copied and updating it to
8585 [Steve Henson, reported by Brien Wheeler
8586 <bwheeler@authentica-security.com>]
8588 *) Add a new function PKCS7_signatureVerify. This allows the verification
8589 of a PKCS#7 signature but with the signing certificate passed to the
8590 function itself. This contrasts with PKCS7_dataVerify which assumes the
8591 certificate is present in the PKCS#7 structure. This isn't always the
8592 case: certificates can be omitted from a PKCS#7 structure and be
8593 distributed by "out of band" means (such as a certificate database).
8596 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8597 function prototypes in pem.h, also change util/mkdef.pl to add the
8598 necessary function names.
8601 *) mk1mf.pl (used by Windows builds) did not properly read the
8602 options set by Configure in the top level Makefile, and Configure
8603 was not even able to write more than one option correctly.
8604 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8607 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8608 file to be loaded from a BIO or FILE pointer. The BIO version will
8609 for example allow memory BIOs to contain config info.
8612 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8613 Whoever hopes to achieve shared-library compatibility across versions
8614 must use this, not the compile-time macro.
8615 (Exercise 0.9.4: Which is the minimum library version required by
8617 Note: All this applies only to multi-threaded programs, others don't
8621 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8622 through a BIO pair triggered the default case, i.e.
8623 SSLerr(...,SSL_R_UNKNOWN_STATE).
8626 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8627 can use the SSL library even if none of the specific BIOs is
8631 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8632 for the encoded length.
8633 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8635 *) Add initial documentation of the X509V3 functions.
8638 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8639 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8640 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8641 secure PKCS#8 private key format with a high iteration count.
8644 *) Fix determination of Perl interpreter: A perl or perl5
8645 _directory_ in $PATH was also accepted as the interpreter.
8646 [Ralf S. Engelschall]
8648 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8649 wrong with it but it was very old and did things like calling
8650 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8654 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8655 to use the new extension code.
8658 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8659 with macros. This should make it easier to change their form, add extra
8660 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8664 *) Add to configuration table a new entry that can specify an alternative
8665 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8666 according to Mark Crispin <MRC@Panda.COM>.
8670 *) DES CBC did not update the IV. Weird.
8673 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8674 Changing the behaviour of the former might break existing programs --
8675 where IV updating is needed, des_ncbc_encrypt can be used.
8678 *) When bntest is run from "make test" it drives bc to check its
8679 calculations, as well as internally checking them. If an internal check
8680 fails, it needs to cause bc to give a non-zero result or make test carries
8681 on without noticing the failure. Fixed.
8684 *) DES library cleanups.
8687 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8688 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8689 ciphers. NOTE: although the key derivation function has been verified
8690 against some published test vectors it has not been extensively tested
8691 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8695 *) Instead of "mkdir -p", which is not fully portable, use new
8696 Perl script "util/mkdir-p.pl".
8699 *) Rewrite the way password based encryption (PBE) is handled. It used to
8700 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8701 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8702 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8703 the 'parameter' field of the AlgorithmIdentifier is passed to the
8704 underlying key generation function so it must do its own ASN1 parsing.
8705 This has also changed the EVP_PBE_CipherInit() function which now has a
8706 'parameter' argument instead of literal salt and iteration count values
8707 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8710 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8711 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8712 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8713 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8714 value was just used as a "magic string" and not used directly its
8715 value doesn't matter.
8718 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8722 *) "linux-sparc64" configuration (ultrapenguin).
8723 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8724 "linux-sparc" configuration.
8725 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8727 *) config now generates no-xxx options for missing ciphers.
8730 *) Support the EBCDIC character set (work in progress).
8731 File ebcdic.c not yet included because it has a different license.
8732 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8734 *) Support BS2000/OSD-POSIX.
8735 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8737 *) Make callbacks for key generation use void * instead of char *.
8740 *) Make S/MIME samples compile (not yet tested).
8743 *) Additional typesafe stacks.
8746 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8750 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8752 *) New configuration variant "sco5-gcc".
8754 *) Updated some demos.
8755 [Sean O Riordain, Wade Scholine]
8757 *) Add missing BIO_free at exit of pkcs12 application.
8760 *) Fix memory leak in conf.c.
8763 *) Updates for Win32 to assembler version of MD5.
8766 *) Set #! path to perl in apps/der_chop to where we found it
8767 instead of using a fixed path.
8770 *) SHA library changes for irix64-mips4-cc.
8773 *) Improvements for VMS support.
8777 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8779 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8780 This also avoids the problems with SC4.2 and unpatched SC5.
8781 [Andy Polyakov <appro@fy.chalmers.se>]
8783 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8784 These are required because of the typesafe stack would otherwise break
8785 existing code. If old code used a structure member which used to be STACK
8786 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8787 sk_num or sk_value it would produce an error because the num, data members
8788 are not present in STACK_OF. Now it just produces a warning. sk_set
8789 replaces the old method of assigning a value to sk_value
8790 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8791 that does this will no longer work (and should use sk_set instead) but
8792 this could be regarded as a "questionable" behaviour anyway.
8795 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8796 correctly handle encrypted S/MIME data.
8799 *) Change type of various DES function arguments from des_cblock
8800 (which means, in function argument declarations, pointer to char)
8801 to des_cblock * (meaning pointer to array with 8 char elements),
8802 which allows the compiler to do more typechecking; it was like
8803 that back in SSLeay, but with lots of ugly casts.
8805 Introduce new type const_des_cblock.
8808 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8809 problems: find RecipientInfo structure that matches recipient certificate
8810 and initialise the ASN1 structures properly based on passed cipher.
8813 *) Belatedly make the BN tests actually check the results.
8816 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8817 to and from BNs: it was completely broken. New compilation option
8818 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8819 key elements as negative integers.
8822 *) Reorganize and speed up MD5.
8823 [Andy Polyakov <appro@fy.chalmers.se>]
8826 [Richard Levitte <richard@levitte.org>]
8828 *) New option -out to asn1parse to allow the parsed structure to be
8829 output to a file. This is most useful when combined with the -strparse
8830 option to examine the output of things like OCTET STRINGS.
8833 *) Make SSL library a little more fool-proof by not requiring any longer
8834 that SSL_set_{accept,connect}_state be called before
8835 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8836 in many applications because usually everything *appeared* to work as
8837 intended anyway -- now it really works as intended).
8840 *) Move openssl.cnf out of lib/.
8843 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8844 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8845 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8846 [Ralf S. Engelschall]
8848 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8849 handle PKCS#7 enveloped data properly.
8850 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8852 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8853 copying pointers. The cert_st handling is changed by this in
8854 various ways (and thus what used to be known as ctx->default_cert
8855 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8856 any longer when s->cert does not give us what we need).
8857 ssl_cert_instantiate becomes obsolete by this change.
8858 As soon as we've got the new code right (possibly it already is?),
8859 we have solved a couple of bugs of the earlier code where s->cert
8860 was used as if it could not have been shared with other SSL structures.
8862 Note that using the SSL API in certain dirty ways now will result
8863 in different behaviour than observed with earlier library versions:
8864 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8865 does not influence s as it used to.
8867 In order to clean up things more thoroughly, inside SSL_SESSION
8868 we don't use CERT any longer, but a new structure SESS_CERT
8869 that holds per-session data (if available); currently, this is
8870 the peer's certificate chain and, for clients, the server's certificate
8871 and temporary key. CERT holds only those values that can have
8872 meaningful defaults in an SSL_CTX.
8875 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8876 from the internal representation. Various PKCS#7 fixes: remove some
8877 evil casts and set the enc_dig_alg field properly based on the signing
8881 *) Allow PKCS#12 password to be set from the command line or the
8882 environment. Let 'ca' get its config file name from the environment
8883 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8887 *) Allow certificate policies extension to use an IA5STRING for the
8888 organization field. This is contrary to the PKIX definition but
8889 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8893 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8894 without disallowing inline assembler and the like for non-pedantic builds.
8897 *) Support Borland C++ builder.
8898 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8903 *) SHA-1 cleanups and performance enhancements.
8904 [Andy Polyakov <appro@fy.chalmers.se>]
8906 *) Sparc v8plus assembler for the bignum library.
8907 [Andy Polyakov <appro@fy.chalmers.se>]
8909 *) Accept any -xxx and +xxx compiler options in Configure.
8912 *) Update HPUX configuration.
8915 *) Add missing sk_<type>_unshift() function to safestack.h
8916 [Ralf S. Engelschall]
8918 *) New function SSL_CTX_use_certificate_chain_file that sets the
8919 "extra_cert"s in addition to the certificate. (This makes sense
8920 only for "PEM" format files, as chains as a whole are not
8924 *) Support verify_depth from the SSL API.
8925 x509_vfy.c had what can be considered an off-by-one-error:
8926 Its depth (which was not part of the external interface)
8927 was actually counting the number of certificates in a chain;
8928 now it really counts the depth.
8931 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8932 instead of X509err, which often resulted in confusing error
8933 messages since the error codes are not globally unique
8934 (e.g. an alleged error in ssl3_accept when a certificate
8935 didn't match the private key).
8937 *) New function SSL_CTX_set_session_id_context that allows to set a default
8938 value (so that you don't need SSL_set_session_id_context for each
8939 connection using the SSL_CTX).
8942 *) OAEP decoding bug fix.
8945 *) Support INSTALL_PREFIX for package builders, as proposed by
8949 *) New Configure options "threads" and "no-threads". For systems
8950 where the proper compiler options are known (currently Solaris
8951 and Linux), "threads" is the default.
8954 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8957 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8958 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8959 such as /usr/local/bin.
8962 *) "make linux-shared" to build shared libraries.
8963 [Niels Poppe <niels@netbox.org>]
8965 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8968 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8969 extension adding in x509 utility.
8972 *) Remove NOPROTO sections and error code comments.
8975 *) Partial rewrite of the DEF file generator to now parse the ANSI
8979 *) New Configure options --prefix=DIR and --openssldir=DIR.
8982 *) Complete rewrite of the error code script(s). It is all now handled
8983 by one script at the top level which handles error code gathering,
8984 header rewriting and C source file generation. It should be much better
8985 than the old method: it now uses a modified version of Ulf's parser to
8986 read the ANSI prototypes in all header files (thus the old K&R definitions
8987 aren't needed for error creation any more) and do a better job of
8988 translating function codes into names. The old 'ASN1 error code imbedded
8989 in a comment' is no longer necessary and it doesn't use .err files which
8990 have now been deleted. Also the error code call doesn't have to appear all
8991 on one line (which resulted in some large lines...).
8994 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8997 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8998 0 (which usually indicates a closed connection), but continue reading.
9001 *) Fix some race conditions.
9004 *) Add support for CRL distribution points extension. Add Certificate
9005 Policies and CRL distribution points documentation.
9008 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9011 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9012 8 of keying material. Merlin has also confirmed interop with this fix
9013 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9014 [Merlin Hughes <merlin@baltimore.ie>]
9016 *) Fix lots of warnings.
9017 [Richard Levitte <levitte@stacken.kth.se>]
9019 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9020 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9021 [Richard Levitte <levitte@stacken.kth.se>]
9023 *) Fix problems with sizeof(long) == 8.
9024 [Andy Polyakov <appro@fy.chalmers.se>]
9026 *) Change functions to ANSI C.
9029 *) Fix typos in error codes.
9030 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9032 *) Remove defunct assembler files from Configure.
9035 *) SPARC v8 assembler BIGNUM implementation.
9036 [Andy Polyakov <appro@fy.chalmers.se>]
9038 *) Support for Certificate Policies extension: both print and set.
9039 Various additions to support the r2i method this uses.
9042 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9043 return a const string when you are expecting an allocated buffer.
9046 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9047 types DirectoryString and DisplayText.
9050 *) Add code to allow r2i extensions to access the configuration database,
9051 add an LHASH database driver and add several ctx helper functions.
9054 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9055 fail when they extended the size of a BIGNUM.
9058 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9059 support typesafe stack.
9062 *) Fix typo in SSL_[gs]et_options().
9063 [Nils Frostberg <nils@medcom.se>]
9065 *) Delete various functions and files that belonged to the (now obsolete)
9066 old X509V3 handling code.
9069 *) New Configure option "rsaref".
9072 *) Don't auto-generate pem.h.
9075 *) Introduce type-safe ASN.1 SETs.
9078 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9079 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9081 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9082 that links with OpenSSL (well at least cause lots of warnings), but fear
9083 not: the conversion is trivial, and it eliminates loads of evil casts. A
9084 few STACKed things have been converted already. Feel free to convert more.
9085 In the fullness of time, I'll do away with the STACK type altogether.
9088 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9089 specified in <certfile> by updating the entry in the index.txt file.
9090 This way one no longer has to edit the index.txt file manually for
9091 revoking a certificate. The -revoke option does the gory details now.
9092 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9094 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9095 `-text' option at all and this way the `-noout -text' combination was
9096 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9097 [Ralf S. Engelschall]
9099 *) Make sure a corresponding plain text error message exists for the
9100 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9101 verify callback function determined that a certificate was revoked.
9102 [Ralf S. Engelschall]
9104 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9105 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9106 all available cipers including rc5, which was forgotten until now.
9107 In order to let the testing shell script know which algorithms
9108 are available, a new (up to now undocumented) command
9109 "openssl list-cipher-commands" is used.
9112 *) Bugfix: s_client occasionally would sleep in select() when
9113 it should have checked SSL_pending() first.
9116 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9117 the raw DSA values prior to ASN.1 encoding.
9120 *) Tweaks to Configure
9121 [Niels Poppe <niels@netbox.org>]
9123 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9127 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9130 *) New config option to avoid instructions that are illegal on the 80386.
9131 The default code is faster, but requires at least a 486.
9134 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9135 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9136 same as SSL2_VERSION anyway.
9139 *) New "-showcerts" option for s_client.
9142 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9143 application. Various cleanups and fixes.
9146 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9147 modify error routines to work internally. Add error codes and PBE init
9148 to library startup routines.
9151 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9152 packing functions to asn1 and evp. Changed function names and error
9153 codes along the way.
9156 *) PKCS12 integration: and so it begins... First of several patches to
9157 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9158 objects to objects.h
9161 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9162 and display support for Thawte strong extranet extension.
9165 *) Add LinuxPPC support.
9166 [Jeff Dubrule <igor@pobox.org>]
9168 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9169 bn_div_words in alpha.s.
9170 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9172 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9173 OAEP isn't supported when OpenSSL is built with RSAref.
9174 [Ulf Moeller <ulf@fitug.de>]
9176 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9177 so they no longer are missing under -DNOPROTO.
9178 [Soren S. Jorvang <soren@t.dk>]
9181 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9183 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9184 doesn't work when the session is reused. Coming soon!
9187 *) Fix a security hole, that allows sessions to be reused in the wrong
9188 context thus bypassing client cert protection! All software that uses
9189 client certs and session caches in multiple contexts NEEDS PATCHING to
9190 allow session reuse! A fuller solution is in the works.
9191 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9193 *) Some more source tree cleanups (removed obsolete files
9194 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9195 permission on "config" script to be executable) and a fix for the INSTALL
9197 [Ulf Moeller <ulf@fitug.de>]
9199 *) Remove some legacy and erroneous uses of malloc, free instead of
9201 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9203 *) Make rsa_oaep_test return non-zero on error.
9204 [Ulf Moeller <ulf@fitug.de>]
9206 *) Add support for native Solaris shared libraries. Configure
9207 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9208 if someone would make that last step automatic.
9209 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9211 *) ctx_size was not built with the right compiler during "make links". Fixed.
9214 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9215 except NULL ciphers". This means the default cipher list will no longer
9216 enable NULL ciphers. They need to be specifically enabled e.g. with
9217 the string "DEFAULT:eNULL".
9220 *) Fix to RSA private encryption routines: if p < q then it would
9221 occasionally produce an invalid result. This will only happen with
9222 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9225 *) Be less restrictive and allow also `perl util/perlpath.pl
9226 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9227 because this way one can also use an interpreter named `perl5' (which is
9228 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9229 installed as `perl').
9230 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9232 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9233 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9235 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9236 advapi32.lib to Win32 build and change the pem test comparision
9237 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9238 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9239 and crypto/des/ede_cbcm_enc.c.
9242 *) DES quad checksum was broken on big-endian architectures. Fixed.
9245 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9246 Win32 test batch file so it (might) work again. The Win32 test batch file
9247 is horrible: I feel ill....
9250 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9251 in e_os.h. Audit of header files to check ANSI and non ANSI
9252 sections: 10 functions were absent from non ANSI section and not exported
9253 from Windows DLLs. Fixed up libeay.num for new functions.
9256 *) Make `openssl version' output lines consistent.
9257 [Ralf S. Engelschall]
9259 *) Fix Win32 symbol export lists for BIO functions: Added
9260 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9261 to ms/libeay{16,32}.def.
9262 [Ralf S. Engelschall]
9264 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9265 fine under Unix and passes some trivial tests I've now added. But the
9266 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9267 added to make sure no one expects that this stuff really works in the
9268 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9269 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9271 [Ralf S. Engelschall]
9273 *) Fix the generation of two part addresses in perl.
9274 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9276 *) Add config entry for Linux on MIPS.
9277 [John Tobey <jtobey@channel1.com>]
9279 *) Make links whenever Configure is run, unless we are on Windoze.
9282 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9283 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9287 *) Add a useful kludge to allow package maintainers to specify compiler and
9288 other platforms details on the command line without having to patch the
9289 Configure script everytime: One now can use ``perl Configure
9290 <id>:<details>'', i.e. platform ids are allowed to have details appended
9291 to them (seperated by colons). This is treated as there would be a static
9292 pre-configured entry in Configure's %table under key <id> with value
9293 <details> and ``perl Configure <id>'' is called. So, when you want to
9294 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9295 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9296 now, which overrides the FreeBSD-elf entry on-the-fly.
9297 [Ralf S. Engelschall]
9299 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9302 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9303 on the `perl Configure ...' command line. This way one can compile
9304 OpenSSL libraries with Position Independent Code (PIC) which is needed
9305 for linking it into DSOs.
9306 [Ralf S. Engelschall]
9308 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9312 *) Cleaned up the LICENSE document: The official contact for any license
9313 questions now is the OpenSSL core team under openssl-core@openssl.org.
9314 And add a paragraph about the dual-license situation to make sure people
9315 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9316 to the OpenSSL toolkit.
9317 [Ralf S. Engelschall]
9319 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9320 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9321 Additonally cleaned up the `make links' target: Remove unnecessary
9322 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9323 to speed processing and no longer clutter the display with confusing
9324 stuff. Instead only the actually done links are displayed.
9325 [Ralf S. Engelschall]
9327 *) Permit null encryption ciphersuites, used for authentication only. It used
9328 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9329 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9333 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9334 signed attributes when verifying signatures (this would break them),
9335 the detached data encoding was wrong and public keys obtained using
9336 X509_get_pubkey() weren't freed.
9339 *) Add text documentation for the BUFFER functions. Also added a work around
9340 to a Win95 console bug. This was triggered by the password read stuff: the
9341 last character typed gets carried over to the next fread(). If you were
9342 generating a new cert request using 'req' for example then the last
9343 character of the passphrase would be CR which would then enter the first
9347 *) Added the new `Includes OpenSSL Cryptography Software' button as
9348 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9349 button and can be used by applications based on OpenSSL to show the
9350 relationship to the OpenSSL project.
9351 [Ralf S. Engelschall]
9353 *) Remove confusing variables in function signatures in files
9354 ssl/ssl_lib.c and ssl/ssl.h.
9355 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9357 *) Don't install bss_file.c under PREFIX/include/
9358 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9360 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9361 functions that return function pointers and has support for NT specific
9362 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9363 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9364 unsigned to signed types: this was killing the Win32 compile.
9367 *) Add new certificate file to stack functions,
9368 SSL_add_dir_cert_subjects_to_stack() and
9369 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9370 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9371 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9372 This means that Apache-SSL and similar packages don't have to mess around
9373 to add as many CAs as they want to the preferred list.
9376 *) Experiment with doxygen documentation. Currently only partially applied to
9378 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9379 openssl.doxy as the configuration file.
9382 *) Get rid of remaining C++-style comments which strict C compilers hate.
9383 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9385 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9386 compiled in by default: it has problems with large keys.
9389 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9390 DH private keys and/or callback functions which directly correspond to
9391 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9392 is needed for applications which have to configure certificates on a
9393 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9395 For the RSA certificate situation is makes no difference, but
9396 for the DSA certificate situation this fixes the "no shared cipher"
9397 problem where the OpenSSL cipher selection procedure failed because the
9398 temporary keys were not overtaken from the context and the API provided
9399 no way to reconfigure them.
9400 The new functions now let applications reconfigure the stuff and they
9401 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9402 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9403 non-public-API function ssl_cert_instantiate() is used as a helper
9404 function and also to reduce code redundancy inside ssl_rsa.c.
9405 [Ralf S. Engelschall]
9407 *) Move s_server -dcert and -dkey options out of the undocumented feature
9408 area because they are useful for the DSA situation and should be
9409 recognized by the users.
9410 [Ralf S. Engelschall]
9412 *) Fix the cipher decision scheme for export ciphers: the export bits are
9413 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9414 SSL_EXP_MASK. So, the original variable has to be used instead of the
9415 already masked variable.
9416 [Richard Levitte <levitte@stacken.kth.se>]
9418 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9419 [Richard Levitte <levitte@stacken.kth.se>]
9421 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9422 from `int' to `unsigned int' because it's a length and initialized by
9423 EVP_DigestFinal() which expects an `unsigned int *'.
9424 [Richard Levitte <levitte@stacken.kth.se>]
9426 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9427 script. Instead use the usual Shell->Perl transition trick.
9428 [Ralf S. Engelschall]
9430 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9431 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9432 -noout -modulus' as it's already the case for `openssl rsa -noout
9433 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9434 currently the public key is printed (a decision which was already done by
9435 `openssl dsa -modulus' in the past) which serves a similar purpose.
9436 Additionally the NO_RSA no longer completely removes the whole -modulus
9437 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9439 [Ralf S. Engelschall]
9441 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9442 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9443 [Arne Ansper <arne@ats.cyber.ee>]
9445 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9446 to be added. Now both 'req' and 'ca' can use new objects defined in the
9450 *) Add cool BIO that does syslog (or event log on NT).
9451 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9453 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9454 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9455 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9456 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9459 *) Add preliminary config info for new extension code.
9462 *) Make RSA_NO_PADDING really use no padding.
9463 [Ulf Moeller <ulf@fitug.de>]
9465 *) Generate errors when private/public key check is done.
9468 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9469 for some CRL extensions and new objects added.
9472 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9473 key usage extension and fuller support for authority key id.
9476 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9477 padding method for RSA, which is recommended for new applications in PKCS
9478 #1 v2.0 (RFC 2437, October 1998).
9479 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9480 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9481 against Bleichbacher's attack on RSA.
9482 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9485 *) Updates to the new SSL compression code
9486 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9488 *) Fix so that the version number in the master secret, when passed
9489 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9490 (because the server will not accept higher), that the version number
9491 is 0x03,0x01, not 0x03,0x00
9492 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9494 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9495 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9496 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9499 *) Support for RAW extensions where an arbitrary extension can be
9500 created by including its DER encoding. See apps/openssl.cnf for
9504 *) Make sure latest Perl versions don't interpret some generated C array
9505 code as Perl array code in the crypto/err/err_genc.pl script.
9506 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9508 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9509 not many people have the assembler. Various Win32 compilation fixes and
9510 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9514 *) Modify configure script 'Configure' to automatically create crypto/date.h
9515 file under Win32 and also build pem.h from pem.org. New script
9516 util/mkfiles.pl to create the MINFO file on environments that can't do a
9517 'make files': perl util/mkfiles.pl >MINFO should work.
9520 *) Major rework of DES function declarations, in the pursuit of correctness
9521 and purity. As a result, many evil casts evaporated, and some weirdness,
9522 too. You may find this causes warnings in your code. Zapping your evil
9523 casts will probably fix them. Mostly.
9526 *) Fix for a typo in asn1.h. Bug fix to object creation script
9527 obj_dat.pl. It considered a zero in an object definition to mean
9528 "end of object": none of the objects in objects.h have any zeros
9529 so it wasn't spotted.
9530 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9532 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9533 Masking (CBCM). In the absence of test vectors, the best I have been able
9534 to do is check that the decrypt undoes the encrypt, so far. Send me test
9535 vectors if you have them.
9538 *) Correct calculation of key length for export ciphers (too much space was
9539 allocated for null ciphers). This has not been tested!
9542 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9543 message is now correct (it understands "crypto" and "ssl" on its
9544 command line). There is also now an "update" option. This will update
9545 the util/ssleay.num and util/libeay.num files with any new functions.
9547 perl util/mkdef.pl crypto ssl update
9548 it will update them.
9551 *) Overhauled the Perl interface (perl/*):
9552 - ported BN stuff to OpenSSL's different BN library
9553 - made the perl/ source tree CVS-aware
9554 - renamed the package from SSLeay to OpenSSL (the files still contain
9555 their history because I've copied them in the repository)
9556 - removed obsolete files (the test scripts will be replaced
9557 by better Test::Harness variants in the future)
9558 [Ralf S. Engelschall]
9560 *) First cut for a very conservative source tree cleanup:
9561 1. merge various obsolete readme texts into doc/ssleay.txt
9562 where we collect the old documents and readme texts.
9563 2. remove the first part of files where I'm already sure that we no
9564 longer need them because of three reasons: either they are just temporary
9565 files which were left by Eric or they are preserved original files where
9566 I've verified that the diff is also available in the CVS via "cvs diff
9567 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9568 the crypto/md/ stuff).
9569 [Ralf S. Engelschall]
9571 *) More extension code. Incomplete support for subject and issuer alt
9572 name, issuer and authority key id. Change the i2v function parameters
9573 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9574 what that's for :-) Fix to ASN1 macro which messed up
9575 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9578 *) Preliminary support for ENUMERATED type. This is largely copied from the
9582 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9583 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9585 *) Make sure `make rehash' target really finds the `openssl' program.
9586 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9588 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9589 like to hear about it if this slows down other processors.
9592 *) Add CygWin32 platform information to Configure script.
9593 [Alan Batie <batie@aahz.jf.intel.com>]
9595 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9596 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9598 *) New program nseq to manipulate netscape certificate sequences
9601 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9605 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9606 but the BN code had some problems that would cause failures when
9607 doing certificate verification and some other functions.
9608 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9610 *) Add ASN1 and PEM code to support netscape certificate sequences.
9613 *) Add ASN1 and PEM code to support netscape certificate sequences.
9616 *) Add several PKIX and private extended key usage OIDs.
9619 *) Modify the 'ca' program to handle the new extension code. Modify
9620 openssl.cnf for new extension format, add comments.
9623 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9624 and add a sample to openssl.cnf so req -x509 now adds appropriate
9628 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9629 error code, add initial support to X509_print() and x509 application.
9632 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9633 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9634 stuff is currently isolated and isn't even compiled yet.
9637 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9638 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9639 Removed the versions check from X509 routines when loading extensions:
9640 this allows certain broken certificates that don't set the version
9641 properly to be processed.
9644 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9645 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9646 can still be regenerated with "make depend".
9649 *) Spelling mistake in C version of CAST-128.
9650 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9652 *) Changes to the error generation code. The perl script err-code.pl
9653 now reads in the old error codes and retains the old numbers, only
9654 adding new ones if necessary. It also only changes the .err files if new
9655 codes are added. The makefiles have been modified to only insert errors
9656 when needed (to avoid needlessly modifying header files). This is done
9657 by only inserting errors if the .err file is newer than the auto generated
9658 C file. To rebuild all the error codes from scratch (the old behaviour)
9659 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9660 or delete all the .err files.
9663 *) CAST-128 was incorrectly implemented for short keys. The C version has
9664 been fixed, but is untested. The assembler versions are also fixed, but
9665 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9666 to regenerate it if needed.
9667 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9668 Hagino <itojun@kame.net>]
9670 *) File was opened incorrectly in randfile.c.
9671 [Ulf Möller <ulf@fitug.de>]
9673 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9674 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9675 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9676 al: it's just almost always a UTCTime. Note this patch adds new error
9677 codes so do a "make errors" if there are problems.
9680 *) Correct Linux 1 recognition in config.
9681 [Ulf Möller <ulf@fitug.de>]
9683 *) Remove pointless MD5 hash when using DSA keys in ca.
9684 [Anonymous <nobody@replay.com>]
9686 *) Generate an error if given an empty string as a cert directory. Also
9687 generate an error if handed NULL (previously returned 0 to indicate an
9688 error, but didn't set one).
9689 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9691 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9694 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9695 parameters. This was causing a warning which killed off the Win32 compile.
9698 *) Remove C++ style comments from crypto/bn/bn_local.h.
9699 [Neil Costigan <neil.costigan@celocom.com>]
9701 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9702 based on a text string, looking up short and long names and finally
9703 "dot" format. The "dot" format stuff didn't work. Added new function
9704 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9705 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9706 OID is not part of the table.
9709 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9710 X509_LOOKUP_by_alias().
9713 *) Sort openssl functions by name.
9716 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9717 encryption from sample DSA keys (in case anyone is interested the password
9721 *) Make _all_ *_free functions accept a NULL pointer.
9722 [Frans Heymans <fheymans@isaserver.be>]
9724 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9726 [Anonymous <nobody@replay.com>]
9728 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9729 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9731 *) Don't blow it for numeric -newkey arguments to apps/req.
9732 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9734 *) Temp key "for export" tests were wrong in s3_srvr.c.
9735 [Anonymous <nobody@replay.com>]
9737 *) Add prototype for temp key callback functions
9738 SSL_CTX_set_tmp_{rsa,dh}_callback().
9741 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9742 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9745 *) X509_name_add_entry() freed the wrong thing after an error.
9746 [Arne Ansper <arne@ats.cyber.ee>]
9748 *) rsa_eay.c would attempt to free a NULL context.
9749 [Arne Ansper <arne@ats.cyber.ee>]
9751 *) BIO_s_socket() had a broken should_retry() on Windoze.
9752 [Arne Ansper <arne@ats.cyber.ee>]
9754 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9755 [Arne Ansper <arne@ats.cyber.ee>]
9757 *) Make sure the already existing X509_STORE->depth variable is initialized
9758 in X509_STORE_new(), but document the fact that this variable is still
9759 unused in the certificate verification process.
9760 [Ralf S. Engelschall]
9762 *) Fix the various library and apps files to free up pkeys obtained from
9763 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9766 *) Fix reference counting in X509_PUBKEY_get(). This makes
9767 demos/maurice/example2.c work, amongst others, probably.
9768 [Steve Henson and Ben Laurie]
9770 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9771 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9772 are no longer created. This way we have a single and consistent command
9773 line interface `openssl <command>', similar to `cvs <command>'.
9774 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9776 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9777 BIT STRING wrapper always have zero unused bits.
9780 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9783 *) Make the top-level INSTALL documentation easier to understand.
9786 *) Makefiles updated to exit if an error occurs in a sub-directory
9787 make (including if user presses ^C) [Paul Sutton]
9789 *) Make Montgomery context stuff explicit in RSA data structure.
9792 *) Fix build order of pem and err to allow for generated pem.h.
9795 *) Fix renumbering bug in X509_NAME_delete_entry().
9798 *) Enhanced the err-ins.pl script so it makes the error library number
9799 global and can add a library name. This is needed for external ASN1 and
9800 other error libraries.
9803 *) Fixed sk_insert which never worked properly.
9806 *) Fix ASN1 macros so they can handle indefinite length construted
9807 EXPLICIT tags. Some non standard certificates use these: they can now
9811 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9812 into a single doc/ssleay.txt bundle. This way the information is still
9813 preserved but no longer messes up this directory. Now it's new room for
9814 the new set of documenation files.
9815 [Ralf S. Engelschall]
9817 *) SETs were incorrectly DER encoded. This was a major pain, because they
9818 shared code with SEQUENCEs, which aren't coded the same. This means that
9819 almost everything to do with SETs or SEQUENCEs has either changed name or
9820 number of arguments.
9821 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9823 *) Fix test data to work with the above.
9826 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9827 was already fixed by Eric for 0.9.1 it seems.
9828 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9830 *) Autodetect FreeBSD3.
9833 *) Fix various bugs in Configure. This affects the following platforms:
9837 unixware-2.0-pentium
9841 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9842 before they are needed.
9845 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9849 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9851 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9852 changed SSLeay to OpenSSL in version strings.
9853 [Ralf S. Engelschall]
9855 *) Some fixups to the top-level documents.
9858 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9859 because the symlink to include/ was missing.
9860 [Ralf S. Engelschall]
9862 *) Incorporated the popular no-RSA/DSA-only patches
9863 which allow to compile a RSA-free SSLeay.
9864 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9866 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9867 when "ssleay" is still not found.
9868 [Ralf S. Engelschall]
9870 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9871 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9873 *) Updated the README file.
9874 [Ralf S. Engelschall]
9876 *) Added various .cvsignore files in the CVS repository subdirs
9877 to make a "cvs update" really silent.
9878 [Ralf S. Engelschall]
9880 *) Recompiled the error-definition header files and added
9881 missing symbols to the Win32 linker tables.
9882 [Ralf S. Engelschall]
9884 *) Cleaned up the top-level documents;
9885 o new files: CHANGES and LICENSE
9886 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9887 o merged COPYRIGHT into LICENSE
9888 o removed obsolete TODO file
9889 o renamed MICROSOFT to INSTALL.W32
9890 [Ralf S. Engelschall]
9892 *) Removed dummy files from the 0.9.1b source tree:
9893 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9894 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9895 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9896 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9897 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9898 [Ralf S. Engelschall]
9900 *) Added various platform portability fixes.
9903 *) The Genesis of the OpenSSL rpject:
9904 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9905 Young and Tim J. Hudson created while they were working for C2Net until
9907 [The OpenSSL Project]
9910 Changes between 0.9.0b and 0.9.1b [not released]
9912 *) Updated a few CA certificates under certs/
9915 *) Changed some BIGNUM api stuff.
9918 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9919 DGUX x86, Linux Alpha, etc.
9922 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9923 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9927 *) Add -strparse option to asn1pars program which parses nested
9929 [Dr Stephen Henson <shenson@bigfoot.com>]
9931 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9934 *) DSA fix for "ca" program.
9937 *) Added "-genkey" option to "dsaparam" program.
9940 *) Added RIPE MD160 (rmd160) message digest.
9943 *) Added -a (all) option to "ssleay version" command.
9946 *) Added PLATFORM define which is the id given to Configure.
9949 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9952 *) Extended the ASN.1 parser routines.
9955 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9958 *) Added a BN_CTX to the BN library.
9961 *) Fixed the weak key values in DES library
9964 *) Changed API in EVP library for cipher aliases.
9967 *) Added support for RC2/64bit cipher.
9970 *) Converted the lhash library to the crypto/mem.c functions.
9973 *) Added more recognized ASN.1 object ids.
9976 *) Added more RSA padding checks for SSL/TLS.
9979 *) Added BIO proxy/filter functionality.
9982 *) Added extra_certs to SSL_CTX which can be used
9983 send extra CA certificates to the client in the CA cert chain sending
9984 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9987 *) Now Fortezza is denied in the authentication phase because
9988 this is key exchange mechanism is not supported by SSLeay at all.
9991 *) Additional PKCS1 checks.
9994 *) Support the string "TLSv1" for all TLS v1 ciphers.
9997 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9998 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10001 *) Fixed a few memory leaks.
10004 *) Fixed various code and comment typos.
10007 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10008 bytes sent in the client random.
10009 [Edward Bishop <ebishop@spyglass.com>]