5 Changes between 1.0.1 and 1.0.2 [xx XXX xxxx]
7 *) Support for fixed DH ciphersuite client authentication: where both
8 server and client use DH certificates with common parameters.
11 *) Support for fixed DH ciphersuites: those requiring DH server
15 Changes between 1.0.1 and 1.0.1a [xx XXX xxxx]
17 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
20 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
22 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
23 STRING form instead of a DigestInfo.
26 *) The format used for MDC2 RSA signatures is inconsistent between EVP
27 and the RSA_sign/RSA_verify functions. This was made more apparent when
28 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
29 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
30 the correct format in RSA_verify so both forms transparently work.
33 *) Some servers which support TLS 1.0 can choke if we initially indicate
34 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
35 encrypted premaster secret. As a workaround use the maximum pemitted
36 client version in client hello, this should keep such servers happy
37 and still work with previous versions of OpenSSL.
40 *) Add support for TLS/DTLS heartbeats.
41 [Robin Seggelmann <seggelmann@fh-muenster.de>]
43 *) Add support for SCTP.
44 [Robin Seggelmann <seggelmann@fh-muenster.de>]
46 *) Improved PRNG seeding for VOS.
47 [Paul Green <Paul.Green@stratus.com>]
49 *) Extensive assembler packs updates, most notably:
51 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
52 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
53 - x86_64: bit-sliced AES implementation;
54 - ARM: NEON support, contemporary platforms optimizations;
55 - s390x: z196 support;
56 - *: GHASH and GF(2^m) multiplication implementations;
60 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
61 (removal of unnecessary code)
62 [Peter Sylvester <peter.sylvester@edelweb.fr>]
64 *) Add TLS key material exporter from RFC 5705.
67 *) Add DTLS-SRTP negotiation from RFC 5764.
70 *) Add Next Protocol Negotiation,
71 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
72 disabled with a no-npn flag to config or Configure. Code donated
74 [Adam Langley <agl@google.com> and Ben Laurie]
76 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
77 NIST-P256, NIST-P521, with constant-time single point multiplication on
78 typical inputs. Compiler support for the nonstandard type __uint128_t is
79 required to use this (present in gcc 4.4 and later, for 64-bit builds).
80 Code made available under Apache License version 2.0.
82 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
83 line to include this in your build of OpenSSL, and run "make depend" (or
84 "make update"). This enables the following EC_METHODs:
86 EC_GFp_nistp224_method()
87 EC_GFp_nistp256_method()
88 EC_GFp_nistp521_method()
90 EC_GROUP_new_by_curve_name() will automatically use these (while
91 EC_GROUP_new_curve_GFp() currently prefers the more flexible
93 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
95 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
96 all platforms. Move ssize_t definition from e_os.h to the public
97 header file e_os2.h as it now appears in public header file cms.h
100 *) New -sigopt option to the ca, req and x509 utilities. Additional
101 signature parameters can be passed using this option and in
105 *) Add RSA PSS signing function. This will generate and set the
106 appropriate AlgorithmIdentifiers for PSS based on those in the
107 corresponding EVP_MD_CTX structure. No application support yet.
110 *) Support for companion algorithm specific ASN1 signing routines.
111 New function ASN1_item_sign_ctx() signs a pre-initialised
112 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
113 the appropriate parameters.
116 *) Add new algorithm specific ASN1 verification initialisation function
117 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
118 handling will be the same no matter what EVP_PKEY_METHOD is used.
119 Add a PSS handler to support verification of PSS signatures: checked
120 against a number of sample certificates.
123 *) Add signature printing for PSS. Add PSS OIDs.
124 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
126 *) Add algorithm specific signature printing. An individual ASN1 method
127 can now print out signatures instead of the standard hex dump.
129 More complex signatures (e.g. PSS) can print out more meaningful
130 information. Include DSA version that prints out the signature
134 *) Password based recipient info support for CMS library: implementing
138 *) Split password based encryption into PBES2 and PBKDF2 functions. This
139 neatly separates the code into cipher and PBE sections and is required
140 for some algorithms that split PBES2 into separate pieces (such as
144 *) Session-handling fixes:
145 - Fix handling of connections that are resuming with a session ID,
146 but also support Session Tickets.
147 - Fix a bug that suppressed issuing of a new ticket if the client
148 presented a ticket with an expired session.
149 - Try to set the ticket lifetime hint to something reasonable.
150 - Make tickets shorter by excluding irrelevant information.
151 - On the client side, don't ignore renewed tickets.
152 [Adam Langley, Bodo Moeller (Google)]
154 *) Fix PSK session representation.
157 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
159 This work was sponsored by Intel.
162 *) Add GCM support to TLS library. Some custom code is needed to split
163 the IV between the fixed (from PRF) and explicit (from TLS record)
164 portions. This adds all GCM ciphersuites supported by RFC5288 and
165 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
166 add a special AESGCM string for GCM only.
169 *) Expand range of ctrls for AES GCM. Permit setting invocation
170 field on decrypt and retrieval of invocation field only on encrypt.
173 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
174 As required by RFC5289 these ciphersuites cannot be used if for
175 versions of TLS earlier than 1.2.
178 *) For FIPS capable OpenSSL interpret a NULL default public key method
179 as unset and return the appopriate default but do *not* set the default.
180 This means we can return the appopriate method in applications that
181 swicth between FIPS and non-FIPS modes.
184 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
185 ENGINE is used then we cannot handle that in the FIPS module so we
186 keep original code iff non-FIPS operations are allowed.
189 *) Add -attime option to openssl utilities.
190 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
192 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
195 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
196 FIPS EC methods unconditionally for now.
199 *) New build option no-ec2m to disable characteristic 2 code.
202 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
203 all cases can be covered as some introduce binary incompatibilities.
206 *) Redirect RSA operations to FIPS module including keygen,
207 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
210 *) Add similar low level API blocking to ciphers.
213 *) Low level digest APIs are not approved in FIPS mode: any attempt
214 to use these will cause a fatal error. Applications that *really* want
215 to use them can use the private_* version instead.
218 *) Redirect cipher operations to FIPS module for FIPS builds.
221 *) Redirect digest operations to FIPS module for FIPS builds.
224 *) Update build system to add "fips" flag which will link in fipscanister.o
225 for static and shared library builds embedding a signature if needed.
228 *) Output TLS supported curves in preference order instead of numerical
229 order. This is currently hardcoded for the highest order curves first.
230 This should be configurable so applications can judge speed vs strength.
233 *) Add TLS v1.2 server support for client authentication.
236 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
240 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
241 FIPS modules versions.
244 *) Add TLS v1.2 client side support for client authentication. Keep cache
245 of handshake records longer as we don't know the hash algorithm to use
246 until after the certificate request message is received.
249 *) Initial TLS v1.2 client support. Add a default signature algorithms
250 extension including all the algorithms we support. Parse new signature
251 format in client key exchange. Relax some ECC signing restrictions for
252 TLS v1.2 as indicated in RFC5246.
255 *) Add server support for TLS v1.2 signature algorithms extension. Switch
256 to new signature format when needed using client digest preference.
257 All server ciphersuites should now work correctly in TLS v1.2. No client
258 support yet and no support for client certificates.
261 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
262 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
263 ciphersuites. At present only RSA key exchange ciphersuites work with
264 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
265 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
266 and version checking.
269 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
270 with this defined it will not be affected by any changes to ssl internal
271 structures. Add several utility functions to allow openssl application
272 to work with OPENSSL_NO_SSL_INTERN defined.
276 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
278 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
281 *) Permit abbreviated handshakes when renegotiating using the function
282 SSL_renegotiate_abbreviated().
283 [Robin Seggelmann <seggelmann@fh-muenster.de>]
285 *) Add call to ENGINE_register_all_complete() to
286 ENGINE_load_builtin_engines(), so some implementations get used
287 automatically instead of needing explicit application support.
290 *) Add support for TLS key exporter as described in RFC5705.
291 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
293 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
294 a few changes are required:
296 Add SSL_OP_NO_TLSv1_1 flag.
298 Update version checking logic to handle version 1.1.
299 Add explicit IV handling (ported from DTLS code).
300 Add command line options to s_client/s_server.
303 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
305 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
306 in CMS and PKCS7 code. When RSA decryption fails use a random key for
307 content decryption and always return the same error. Note: this attack
308 needs on average 2^20 messages so it only affects automated senders. The
309 old behaviour can be reenabled in the CMS code by setting the
310 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
311 an MMA defence is not necessary.
312 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
313 this issue. (CVE-2012-0884)
316 *) Fix CVE-2011-4619: make sure we really are receiving a
317 client hello before rejecting multiple SGC restarts. Thanks to
318 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
321 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
323 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
324 Thanks to Antonio Martin, Enterprise Secure Access Research and
325 Development, Cisco Systems, Inc. for discovering this bug and
326 preparing a fix. (CVE-2012-0050)
329 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
331 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
332 of the Vaudenay padding oracle attack on CBC mode encryption
333 which enables an efficient plaintext recovery attack against
334 the OpenSSL implementation of DTLS. Their attack exploits timing
335 differences arising during decryption processing. A research
336 paper describing this attack can be found at:
337 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
338 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
339 Security Group at Royal Holloway, University of London
340 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
341 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
342 for preparing the fix. (CVE-2011-4108)
343 [Robin Seggelmann, Michael Tuexen]
345 *) Clear bytes used for block padding of SSL 3.0 records.
347 [Adam Langley (Google)]
349 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
350 Kadianakis <desnacked@gmail.com> for discovering this issue and
351 Adam Langley for preparing the fix. (CVE-2011-4619)
352 [Adam Langley (Google)]
354 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
355 [Andrey Kulikov <amdeich@gmail.com>]
357 *) Prevent malformed RFC3779 data triggering an assertion failure.
358 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
359 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
360 [Rob Austein <sra@hactrn.net>]
362 *) Improved PRNG seeding for VOS.
363 [Paul Green <Paul.Green@stratus.com>]
365 *) Fix ssl_ciph.c set-up race.
366 [Adam Langley (Google)]
368 *) Fix spurious failures in ecdsatest.c.
369 [Emilia Käsper (Google)]
371 *) Fix the BIO_f_buffer() implementation (which was mixing different
372 interpretations of the '..._len' fields).
373 [Adam Langley (Google)]
375 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
376 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
377 threads won't reuse the same blinding coefficients.
379 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
380 lock to call BN_BLINDING_invert_ex, and avoids one use of
381 BN_BLINDING_update for each BN_BLINDING structure (previously,
382 the last update always remained unused).
383 [Emilia Käsper (Google)]
385 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
386 [Bob Buckholz (Google)]
388 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
390 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
391 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
392 [Kaspar Brand <ossl@velox.ch>]
394 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
395 for multi-threaded use of ECDH. (CVE-2011-3210)
396 [Adam Langley (Google)]
398 *) Fix x509_name_ex_d2i memory leak on bad inputs.
401 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
402 signature public key algorithm by using OID xref utilities instead.
403 Before this you could only use some ECC ciphersuites with SHA1 only.
406 *) Add protection against ECDSA timing attacks as mentioned in the paper
407 by Billy Bob Brumley and Nicola Tuveri, see:
409 http://eprint.iacr.org/2011/232.pdf
411 [Billy Bob Brumley and Nicola Tuveri]
413 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
415 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
416 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
418 *) Fix bug in string printing code: if *any* escaping is enabled we must
419 escape the escape character (backslash) or the resulting string is
423 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
425 *) Disable code workaround for ancient and obsolete Netscape browsers
426 and servers: an attacker can use it in a ciphersuite downgrade attack.
427 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
430 *) Fixed J-PAKE implementation error, originally discovered by
431 Sebastien Martini, further info and confirmation from Stefan
432 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
435 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
437 *) Fix extension code to avoid race conditions which can result in a buffer
438 overrun vulnerability: resumed sessions must not be modified as they can
439 be shared by multiple threads. CVE-2010-3864
442 *) Fix WIN32 build system to correctly link an ENGINE directory into
446 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
448 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
450 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
452 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
454 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
455 context. The operation can be customised via the ctrl mechanism in
456 case ENGINEs want to include additional functionality.
459 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
462 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
463 output hashes compatible with older versions of OpenSSL.
464 [Willy Weisz <weisz@vcpc.univie.ac.at>]
466 *) Fix compression algorithm handling: if resuming a session use the
467 compression algorithm of the resumed session instead of determining
468 it from client hello again. Don't allow server to change algorithm.
471 *) Add load_crls() function to apps tidying load_certs() too. Add option
472 to verify utility to allow additional CRLs to be included.
475 *) Update OCSP request code to permit adding custom headers to the request:
476 some responders need this.
479 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
481 [Julia Lawall <julia@diku.dk>]
483 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
484 needlessly dereferenced structures, used obsolete functions and
485 didn't handle all updated verify codes correctly.
488 *) Disable MD2 in the default configuration.
491 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
492 indicate the initial BIO being pushed or popped. This makes it possible
493 to determine whether the BIO is the one explicitly called or as a result
494 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
495 it handles reference counts correctly and doesn't zero out the I/O bio
496 when it is not being explicitly popped. WARNING: applications which
497 included workarounds for the old buggy behaviour will need to be modified
498 or they could free up already freed BIOs.
501 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
502 renaming to all platforms (within the 0.9.8 branch, this was
503 done conditionally on Netware platforms to avoid a name clash).
504 [Guenter <lists@gknw.net>]
506 *) Add ECDHE and PSK support to DTLS.
507 [Michael Tuexen <tuexen@fh-muenster.de>]
509 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
513 *) Add "missing" function EVP_MD_flags() (without this the only way to
514 retrieve a digest flags is by accessing the structure directly. Update
515 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
516 or cipher is registered as in the "from" argument. Print out all
517 registered digests in the dgst usage message instead of manually
518 attempting to work them out.
521 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
522 this allows the use of compression and extensions. Change default cipher
523 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
524 by default unless an application cipher string requests it.
527 *) Alter match criteria in PKCS12_parse(). It used to try to use local
528 key ids to find matching certificates and keys but some PKCS#12 files
529 don't follow the (somewhat unwritten) rules and this strategy fails.
530 Now just gather all certificates together and the first private key
531 then look for the first certificate that matches the key.
534 *) Support use of registered digest and cipher names for dgst and cipher
535 commands instead of having to add each one as a special case. So now
542 openssl dgst -sha256 foo
544 and this works for ENGINE based algorithms too.
548 *) Update Gost ENGINE to support parameter files.
549 [Victor B. Wagner <vitus@cryptocom.ru>]
551 *) Support GeneralizedTime in ca utility.
552 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
554 *) Enhance the hash format used for certificate directory links. The new
555 form uses the canonical encoding (meaning equivalent names will work
556 even if they aren't identical) and uses SHA1 instead of MD5. This form
557 is incompatible with the older format and as a result c_rehash should
558 be used to rebuild symbolic links.
561 *) Make PKCS#8 the default write format for private keys, replacing the
562 traditional format. This form is standardised, more secure and doesn't
563 include an implicit MD5 dependency.
566 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
567 committed to OpenSSL should pass this lot as a minimum.
570 *) Add session ticket override functionality for use by EAP-FAST.
571 [Jouni Malinen <j@w1.fi>]
573 *) Modify HMAC functions to return a value. Since these can be implemented
574 in an ENGINE errors can occur.
577 *) Type-checked OBJ_bsearch_ex.
580 *) Type-checked OBJ_bsearch. Also some constification necessitated
581 by type-checking. Still to come: TXT_DB, bsearch(?),
582 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
586 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
587 seconds to a tm structure directly, instead of going through OS
588 specific date routines. This avoids any issues with OS routines such
589 as the year 2038 bug. New *_adj() functions for ASN1 time structures
590 and X509_time_adj_ex() to cover the extended range. The existing
591 X509_time_adj() is still usable and will no longer have any date issues.
594 *) Delta CRL support. New use deltas option which will attempt to locate
595 and search any appropriate delta CRLs available.
597 This work was sponsored by Google.
600 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
601 code and add additional score elements. Validate alternate CRL paths
602 as part of the CRL checking and indicate a new error "CRL path validation
603 error" in this case. Applications wanting additional details can use
604 the verify callback and check the new "parent" field. If this is not
605 NULL CRL path validation is taking place. Existing applications wont
606 see this because it requires extended CRL support which is off by
609 This work was sponsored by Google.
612 *) Support for freshest CRL extension.
614 This work was sponsored by Google.
617 *) Initial indirect CRL support. Currently only supported in the CRLs
618 passed directly and not via lookup. Process certificate issuer
619 CRL entry extension and lookup CRL entries by bother issuer name
620 and serial number. Check and process CRL issuer entry in IDP extension.
622 This work was sponsored by Google.
625 *) Add support for distinct certificate and CRL paths. The CRL issuer
626 certificate is validated separately in this case. Only enabled if
627 an extended CRL support flag is set: this flag will enable additional
628 CRL functionality in future.
630 This work was sponsored by Google.
633 *) Add support for policy mappings extension.
635 This work was sponsored by Google.
638 *) Fixes to pathlength constraint, self issued certificate handling,
639 policy processing to align with RFC3280 and PKITS tests.
641 This work was sponsored by Google.
644 *) Support for name constraints certificate extension. DN, email, DNS
645 and URI types are currently supported.
647 This work was sponsored by Google.
650 *) To cater for systems that provide a pointer-based thread ID rather
651 than numeric, deprecate the current numeric thread ID mechanism and
652 replace it with a structure and associated callback type. This
653 mechanism allows a numeric "hash" to be extracted from a thread ID in
654 either case, and on platforms where pointers are larger than 'long',
655 mixing is done to help ensure the numeric 'hash' is usable even if it
656 can't be guaranteed unique. The default mechanism is to use "&errno"
657 as a pointer-based thread ID to distinguish between threads.
659 Applications that want to provide their own thread IDs should now use
660 CRYPTO_THREADID_set_callback() to register a callback that will call
661 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
663 Note that ERR_remove_state() is now deprecated, because it is tied
664 to the assumption that thread IDs are numeric. ERR_remove_state(0)
665 to free the current thread's error state should be replaced by
666 ERR_remove_thread_state(NULL).
668 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
669 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
670 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
671 application was previously providing a numeric thread callback that
672 was inappropriate for distinguishing threads, then uniqueness might
673 have been obtained with &errno that happened immediately in the
674 intermediate development versions of OpenSSL; this is no longer the
675 case, the numeric thread callback will now override the automatic use
677 [Geoff Thorpe, with help from Bodo Moeller]
679 *) Initial support for different CRL issuing certificates. This covers a
680 simple case where the self issued certificates in the chain exist and
681 the real CRL issuer is higher in the existing chain.
683 This work was sponsored by Google.
686 *) Removed effectively defunct crypto/store from the build.
689 *) Revamp of STACK to provide stronger type-checking. Still to come:
690 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
691 ASN1_STRING, CONF_VALUE.
694 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
695 RAM on SSL connections. This option can save about 34k per idle SSL.
698 *) Revamp of LHASH to provide stronger type-checking. Still to come:
699 STACK, TXT_DB, bsearch, qsort.
702 *) Initial support for Cryptographic Message Syntax (aka CMS) based
703 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
704 support for data, signedData, compressedData, digestedData and
705 encryptedData, envelopedData types included. Scripts to check against
706 RFC4134 examples draft and interop and consistency checks of many
707 content types and variants.
710 *) Add options to enc utility to support use of zlib compression BIO.
713 *) Extend mk1mf to support importing of options and assembly language
714 files from Configure script, currently only included in VC-WIN32.
715 The assembly language rules can now optionally generate the source
716 files from the associated perl scripts.
719 *) Implement remaining functionality needed to support GOST ciphersuites.
720 Interop testing has been performed using CryptoPro implementations.
721 [Victor B. Wagner <vitus@cryptocom.ru>]
723 *) s390x assembler pack.
726 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
730 *) Implement Opaque PRF Input TLS extension as specified in
731 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
732 official specification yet and no extension type assignment by
733 IANA exists, this extension (for now) will have to be explicitly
734 enabled when building OpenSSL by providing the extension number
735 to use. For example, specify an option
737 -DTLSEXT_TYPE_opaque_prf_input=0x9527
739 to the "config" or "Configure" script to enable the extension,
740 assuming extension number 0x9527 (which is a completely arbitrary
741 and unofficial assignment based on the MD5 hash of the Internet
742 Draft). Note that by doing so, you potentially lose
743 interoperability with other TLS implementations since these might
744 be using the same extension number for other purposes.
746 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
747 opaque PRF input value to use in the handshake. This will create
748 an interal copy of the length-'len' string at 'src', and will
749 return non-zero for success.
751 To get more control and flexibility, provide a callback function
754 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
755 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
759 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
762 Callback function 'cb' will be called in handshakes, and is
763 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
764 Argument 'arg' is for application purposes (the value as given to
765 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
766 be provided to the callback function). The callback function
767 has to return non-zero to report success: usually 1 to use opaque
768 PRF input just if possible, or 2 to enforce use of the opaque PRF
769 input. In the latter case, the library will abort the handshake
770 if opaque PRF input is not successfully negotiated.
772 Arguments 'peerinput' and 'len' given to the callback function
773 will always be NULL and 0 in the case of a client. A server will
774 see the client's opaque PRF input through these variables if
775 available (NULL and 0 otherwise). Note that if the server
776 provides an opaque PRF input, the length must be the same as the
777 length of the client's opaque PRF input.
779 Note that the callback function will only be called when creating
780 a new session (session resumption can resume whatever was
781 previously negotiated), and will not be called in SSL 2.0
782 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
783 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
784 for applications that need to enforce opaque PRF input.
788 *) Update ssl code to support digests other than SHA1+MD5 for handshake
791 [Victor B. Wagner <vitus@cryptocom.ru>]
793 *) Add RFC4507 support to OpenSSL. This includes the corrections in
794 RFC4507bis. The encrypted ticket format is an encrypted encoded
795 SSL_SESSION structure, that way new session features are automatically
798 If a client application caches session in an SSL_SESSION structure
799 support is transparent because tickets are now stored in the encoded
802 The SSL_CTX structure automatically generates keys for ticket
803 protection in servers so again support should be possible
804 with no application modification.
806 If a client or server wishes to disable RFC4507 support then the option
807 SSL_OP_NO_TICKET can be set.
809 Add a TLS extension debugging callback to allow the contents of any client
810 or server extensions to be examined.
812 This work was sponsored by Google.
815 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
816 OpenSSL should now compile cleanly on gcc 4.2
817 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
819 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
820 support including streaming MAC support: this is required for GOST
822 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
824 *) Add option -stream to use PKCS#7 streaming in smime utility. New
825 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
826 to output in BER and PEM format.
829 *) Experimental support for use of HMAC via EVP_PKEY interface. This
830 allows HMAC to be handled via the EVP_DigestSign*() interface. The
831 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
832 ENGINE support for HMAC keys which are unextractable. New -mac and
833 -macopt options to dgst utility.
836 *) New option -sigopt to dgst utility. Update dgst to use
837 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
838 alternative signing paramaters such as X9.31 or PSS in the dgst
842 *) Change ssl_cipher_apply_rule(), the internal function that does
843 the work each time a ciphersuite string requests enabling
844 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
845 removing ("!foo+bar") a class of ciphersuites: Now it maintains
846 the order of disabled ciphersuites such that those ciphersuites
847 that most recently went from enabled to disabled not only stay
848 in order with respect to each other, but also have higher priority
849 than other disabled ciphersuites the next time ciphersuites are
852 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
853 the same ciphersuites as with "HIGH" alone, but in a specific
854 order where the PSK ciphersuites come first (since they are the
855 most recently disabled ciphersuites when "HIGH" is parsed).
857 Also, change ssl_create_cipher_list() (using this new
858 funcionality) such that between otherwise identical
859 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
863 *) Change ssl_create_cipher_list() so that it automatically
864 arranges the ciphersuites in reasonable order before starting
865 to process the rule string. Thus, the definition for "DEFAULT"
866 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
867 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
868 This makes it much easier to arrive at a reasonable default order
869 in applications for which anonymous ciphers are OK (meaning
870 that you can't actually use DEFAULT).
871 [Bodo Moeller; suggested by Victor Duchovni]
873 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
874 processing) into multiple integers instead of setting
875 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
876 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
877 (These masks as well as the individual bit definitions are hidden
878 away into the non-exported interface ssl/ssl_locl.h, so this
879 change to the definition of the SSL_CIPHER structure shouldn't
880 affect applications.) This give us more bits for each of these
881 categories, so there is no longer a need to coagulate AES128 and
882 AES256 into a single algorithm bit, and to coagulate Camellia128
883 and Camellia256 into a single algorithm bit, which has led to all
886 Thus, among other things, the kludge introduced in 0.9.7m and
887 0.9.8e for masking out AES256 independently of AES128 or masking
888 out Camellia256 independently of AES256 is not needed here in 0.9.9.
890 With the change, we also introduce new ciphersuite aliases that
891 so far were missing: "AES128", "AES256", "CAMELLIA128", and
895 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
896 Use the leftmost N bytes of the signature input if the input is
897 larger than the prime q (with N being the size in bytes of q).
900 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
901 it yet and it is largely untested.
904 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
907 *) Initial incomplete changes to avoid need for function casts in OpenSSL
908 some compilers (gcc 4.2 and later) reject their use. Safestack is
909 reimplemented. Update ASN1 to avoid use of legacy functions.
912 *) Win32/64 targets are linked with Winsock2.
915 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
916 to external functions. This can be used to increase CRL handling
917 efficiency especially when CRLs are very large by (for example) storing
918 the CRL revoked certificates in a database.
921 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
922 new CRLs added to a directory can be used. New command line option
923 -verify_return_error to s_client and s_server. This causes real errors
924 to be returned by the verify callback instead of carrying on no matter
925 what. This reflects the way a "real world" verify callback would behave.
928 *) GOST engine, supporting several GOST algorithms and public key formats.
929 Kindly donated by Cryptocom.
932 *) Partial support for Issuing Distribution Point CRL extension. CRLs
933 partitioned by DP are handled but no indirect CRL or reason partitioning
934 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
935 selected via a scoring technique which handles IDP and AKID in CRLs.
938 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
939 will ultimately be used for all verify operations: this will remove the
940 X509_STORE dependency on certificate verification and allow alternative
941 lookup methods. X509_STORE based implementations of these two callbacks.
944 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
945 Modify get_crl() to find a valid (unexpired) CRL if possible.
948 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
949 this would be called X509_CRL_cmp() but that name is already used by
950 a function that just compares CRL issuer names. Cache several CRL
951 extensions in X509_CRL structure and cache CRLDP in X509.
954 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
955 this maps equivalent X509_NAME structures into a consistent structure.
956 Name comparison can then be performed rapidly using memcmp().
959 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
963 *) Allow digests to supply their own micalg string for S/MIME type using
964 the ctrl EVP_MD_CTRL_MICALG.
967 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
968 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
969 ctrl. It can then customise the structure before and/or after signing
973 *) New function OBJ_add_sigid() to allow application defined signature OIDs
974 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
975 to free up any added signature OIDs.
978 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
979 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
980 digest and cipher tables. New options added to openssl utility:
981 list-message-digest-algorithms and list-cipher-algorithms.
984 *) Change the array representation of binary polynomials: the list
985 of degrees of non-zero coefficients is now terminated with -1.
986 Previously it was terminated with 0, which was also part of the
987 value; thus, the array representation was not applicable to
988 polynomials where t^0 has coefficient zero. This change makes
989 the array representation useful in a more general context.
992 *) Various modifications and fixes to SSL/TLS cipher string
993 handling. For ECC, the code now distinguishes between fixed ECDH
994 with RSA certificates on the one hand and with ECDSA certificates
995 on the other hand, since these are separate ciphersuites. The
996 unused code for Fortezza ciphersuites has been removed.
998 For consistency with EDH, ephemeral ECDH is now called "EECDH"
999 (not "ECDHE"). For consistency with the code for DH
1000 certificates, use of ECDH certificates is now considered ECDH
1001 authentication, not RSA or ECDSA authentication (the latter is
1002 merely the CA's signing algorithm and not actively used in the
1005 The temporary ciphersuite alias "ECCdraft" is no longer
1006 available, and ECC ciphersuites are no longer excluded from "ALL"
1007 and "DEFAULT". The following aliases now exist for RFC 4492
1008 ciphersuites, most of these by analogy with the DH case:
1010 kECDHr - ECDH cert, signed with RSA
1011 kECDHe - ECDH cert, signed with ECDSA
1012 kECDH - ECDH cert (signed with either RSA or ECDSA)
1013 kEECDH - ephemeral ECDH
1014 ECDH - ECDH cert or ephemeral ECDH
1020 AECDH - anonymous ECDH
1021 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1025 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1026 Use correct micalg parameters depending on digest(s) in signed message.
1029 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1030 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1033 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1034 an engine to register a method. Add ENGINE lookups for methods and
1035 functional reference processing.
1038 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1039 EVP_{Sign,Verify}* which allow an application to customise the signature
1043 *) New -resign option to smime utility. This adds one or more signers
1044 to an existing PKCS#7 signedData structure. Also -md option to use an
1045 alternative message digest algorithm for signing.
1048 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1049 create PKCS7 structures containing multiple signers. Update smime
1050 application to support multiple signers.
1053 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1057 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1058 Reorganize PBE internals to lookup from a static table using NIDs,
1059 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1060 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1061 PRF which will be automatically used with PBES2.
1064 *) Replace the algorithm specific calls to generate keys in "req" with the
1068 *) Update PKCS#7 enveloped data routines to use new API. This is now
1069 supported by any public key method supporting the encrypt operation. A
1070 ctrl is added to allow the public key algorithm to examine or modify
1071 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1075 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1076 a default digest type to use. In most cases this will be SHA1 but some
1077 algorithms (such as GOST) need to specify an alternative digest. The
1078 return value indicates how strong the prefernce is 1 means optional and
1079 2 is mandatory (that is it is the only supported type). Modify
1080 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1081 use the default md. Update openssl utilities to use the default digest
1082 type for signing if it is not explicitly indicated.
1085 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1086 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1087 signing method from the key type. This effectively removes the link
1088 between digests and public key types.
1091 *) Add an OID cross reference table and utility functions. Its purpose is to
1092 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1093 rsaEncryption. This will allow some of the algorithm specific hackery
1094 needed to use the correct OID to be removed.
1097 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1098 structures for PKCS7_sign(). They are now set up by the relevant public
1102 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1105 *) Add support for key derivation (agreement) in the API, DH method and
1109 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1110 public and private key formats. As a side effect these add additional
1111 command line functionality not previously available: DSA signatures can be
1112 generated and verified using pkeyutl and DH key support and generation in
1117 [Oliver Tappe <zooey@hirschkaefer.de>]
1119 *) New make target "install_html_docs" installs HTML renditions of the
1121 [Oliver Tappe <zooey@hirschkaefer.de>]
1123 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1124 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1125 support key and parameter generation and add initial key generation
1126 functionality for RSA.
1129 *) Add functions for main EVP_PKEY_method operations. The undocumented
1130 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1131 EVP_PKEY_{encrypt,decrypt}_old.
1134 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1135 key API, doesn't do much yet.
1138 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1139 public key algorithms. New option to openssl utility:
1140 "list-public-key-algorithms" to print out info.
1143 *) Implement the Supported Elliptic Curves Extension for
1144 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1147 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1148 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1151 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1152 utilities such as rsa, dsa, dsaparam etc except they process any key
1156 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1157 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1158 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1162 *) Initial support for pluggable public key ASN1.
1163 De-spaghettify the public key ASN1 handling. Move public and private
1164 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1165 algorithm specific handling to a single module within the relevant
1166 algorithm directory. Add functions to allow (near) opaque processing
1167 of public and private key structures.
1170 *) Implement the Supported Point Formats Extension for
1171 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1174 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1175 for the psk identity [hint] and the psk callback functions to the
1176 SSL_SESSION, SSL and SSL_CTX structure.
1179 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1183 SSL_CTX_use_psk_identity_hint
1184 SSL_get_psk_identity_hint
1185 SSL_get_psk_identity
1186 SSL_use_psk_identity_hint
1188 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1190 *) Add RFC 3161 compliant time stamp request creation, response generation
1191 and response verification functionality.
1192 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1194 *) Add initial support for TLS extensions, specifically for the server_name
1195 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1196 have new members for a host name. The SSL data structure has an
1197 additional member SSL_CTX *initial_ctx so that new sessions can be
1198 stored in that context to allow for session resumption, even after the
1199 SSL has been switched to a new SSL_CTX in reaction to a client's
1200 server_name extension.
1202 New functions (subject to change):
1204 SSL_get_servername()
1205 SSL_get_servername_type()
1208 New CTRL codes and macros (subject to change):
1210 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1211 - SSL_CTX_set_tlsext_servername_callback()
1212 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1213 - SSL_CTX_set_tlsext_servername_arg()
1214 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1216 openssl s_client has a new '-servername ...' option.
1218 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1219 '-key2 ...', '-servername_fatal' (subject to change). This allows
1220 testing the HostName extension for a specific single host name ('-cert'
1221 and '-key' remain fallbacks for handshakes without HostName
1222 negotiation). If the unrecogninzed_name alert has to be sent, this by
1223 default is a warning; it becomes fatal with the '-servername_fatal'
1226 [Peter Sylvester, Remy Allais, Christophe Renou]
1228 *) Whirlpool hash implementation is added.
1231 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1232 bn(64,32). Because of instruction set limitations it doesn't have
1233 any negative impact on performance. This was done mostly in order
1234 to make it possible to share assembler modules, such as bn_mul_mont
1235 implementations, between 32- and 64-bit builds without hassle.
1238 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1239 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1243 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1244 dedicated Montgomery multiplication procedure, is introduced.
1245 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1246 "64-bit" performance on certain 32-bit targets.
1249 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1250 in SSL structures. New SSL ctrl to set maximum send fragment size.
1251 Save memory by seeting the I/O buffer sizes dynamically instead of
1252 using the maximum available value.
1255 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1256 in addition to the text details.
1259 *) Very, very preliminary EXPERIMENTAL support for printing of general
1260 ASN1 structures. This currently produces rather ugly output and doesn't
1261 handle several customised structures at all.
1264 *) Integrated support for PVK file format and some related formats such
1265 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1266 these in the 'rsa' and 'dsa' utilities.
1269 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1272 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1273 place for the (very old) "NETSCAPE" format certificates which are now
1274 handled using new ASN1 code equivalents.
1277 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1278 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1279 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1282 *) Modify CRL distribution points extension code to print out previously
1283 unsupported fields. Enhance extension setting code to allow setting of
1287 *) Add print and set support for Issuing Distribution Point CRL extension.
1290 *) Change 'Configure' script to enable Camellia by default.
1293 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1295 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1296 Thanks to Antonio Martin, Enterprise Secure Access Research and
1297 Development, Cisco Systems, Inc. for discovering this bug and
1298 preparing a fix. (CVE-2012-0050)
1301 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1303 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1304 of the Vaudenay padding oracle attack on CBC mode encryption
1305 which enables an efficient plaintext recovery attack against
1306 the OpenSSL implementation of DTLS. Their attack exploits timing
1307 differences arising during decryption processing. A research
1308 paper describing this attack can be found at:
1309 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1310 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1311 Security Group at Royal Holloway, University of London
1312 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1313 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1314 for preparing the fix. (CVE-2011-4108)
1315 [Robin Seggelmann, Michael Tuexen]
1317 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1318 [Ben Laurie, Kasper <ekasper@google.com>]
1320 *) Clear bytes used for block padding of SSL 3.0 records.
1322 [Adam Langley (Google)]
1324 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1325 Kadianakis <desnacked@gmail.com> for discovering this issue and
1326 Adam Langley for preparing the fix. (CVE-2011-4619)
1327 [Adam Langley (Google)]
1329 *) Prevent malformed RFC3779 data triggering an assertion failure.
1330 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1331 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1332 [Rob Austein <sra@hactrn.net>]
1334 *) Fix ssl_ciph.c set-up race.
1335 [Adam Langley (Google)]
1337 *) Fix spurious failures in ecdsatest.c.
1338 [Emilia Käsper (Google)]
1340 *) Fix the BIO_f_buffer() implementation (which was mixing different
1341 interpretations of the '..._len' fields).
1342 [Adam Langley (Google)]
1344 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1345 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1346 threads won't reuse the same blinding coefficients.
1348 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1349 lock to call BN_BLINDING_invert_ex, and avoids one use of
1350 BN_BLINDING_update for each BN_BLINDING structure (previously,
1351 the last update always remained unused).
1352 [Emilia Käsper (Google)]
1354 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1355 for multi-threaded use of ECDH.
1356 [Adam Langley (Google)]
1358 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1361 *) Add protection against ECDSA timing attacks as mentioned in the paper
1362 by Billy Bob Brumley and Nicola Tuveri, see:
1364 http://eprint.iacr.org/2011/232.pdf
1366 [Billy Bob Brumley and Nicola Tuveri]
1368 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1370 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1371 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1373 *) Fix bug in string printing code: if *any* escaping is enabled we must
1374 escape the escape character (backslash) or the resulting string is
1378 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1380 *) Disable code workaround for ancient and obsolete Netscape browsers
1381 and servers: an attacker can use it in a ciphersuite downgrade attack.
1382 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1385 *) Fixed J-PAKE implementation error, originally discovered by
1386 Sebastien Martini, further info and confirmation from Stefan
1387 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1390 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1392 *) Fix extension code to avoid race conditions which can result in a buffer
1393 overrun vulnerability: resumed sessions must not be modified as they can
1394 be shared by multiple threads. CVE-2010-3864
1397 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1400 *) Don't reencode certificate when calculating signature: cache and use
1401 the original encoding instead. This makes signature verification of
1402 some broken encodings work correctly.
1405 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1406 is also one of the inputs.
1407 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1409 *) Don't repeatedly append PBE algorithms to table if they already exist.
1410 Sort table on each new add. This effectively makes the table read only
1411 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1415 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1417 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1420 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1421 access or freeing data twice (CVE-2010-0742)
1422 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1424 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1425 common in certificates and some applications which only call
1426 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1430 Reduce copying into .apps and .test in makevms.com
1431 Don't try to use blank CA certificate in CA.com
1432 Allow use of C files from original directories in maketests.com
1433 [Steven M. Schweda" <sms@antinode.info>]
1435 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1437 *) When rejecting SSL/TLS records due to an incorrect version number, never
1438 update s->server with a new major version number. As of
1439 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1440 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1441 the previous behavior could result in a read attempt at NULL when
1442 receiving specific incorrect SSL/TLS records once record payload
1443 protection is active. (CVE-2010-0740)
1444 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1446 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1447 could be crashed if the relevant tables were not present (e.g. chrooted).
1448 [Tomas Hoger <thoger@redhat.com>]
1450 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1452 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1453 [Martin Olsson, Neel Mehta]
1455 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1456 accommodate for stack sorting, always a write lock!).
1459 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1460 excessive delays in the RAND_poll(): over a minute. As a workaround
1461 include a time check in the inner Heap32Next loop too.
1464 *) The code that handled flushing of data in SSL/TLS originally used the
1465 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1466 the problem outlined in PR#1949. The fix suggested there however can
1467 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1468 of Apache). So instead simplify the code to flush unconditionally.
1469 This should be fine since flushing with no data to flush is a no op.
1472 *) Handle TLS versions 2.0 and later properly and correctly use the
1473 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1474 off ancient servers have a habit of sticking around for a while...
1477 *) Modify compression code so it frees up structures without using the
1478 ex_data callbacks. This works around a problem where some applications
1479 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1480 restarting) then use compression (e.g. SSL with compression) later.
1481 This results in significant per-connection memory leaks and
1482 has caused some security issues including CVE-2008-1678 and
1486 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1487 change when encrypting or decrypting.
1490 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1491 connect and renegotiate with servers which do not support RI.
1492 Until RI is more widely deployed this option is enabled by default.
1495 *) Add "missing" ssl ctrls to clear options and mode.
1498 *) If client attempts to renegotiate and doesn't support RI respond with
1499 a no_renegotiation alert as required by RFC5746. Some renegotiating
1500 TLS clients will continue a connection gracefully when they receive
1501 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1502 waiting for a server hello which it will never receive. Now we treat a
1503 received no_renegotiation alert as a fatal error. This is because
1504 applications requesting a renegotiation might well expect it to succeed
1505 and would have no code in place to handle the server denying it so the
1506 only safe thing to do is to terminate the connection.
1509 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1510 peer supports secure renegotiation and 0 otherwise. Print out peer
1511 renegotiation support in s_client/s_server.
1514 *) Replace the highly broken and deprecated SPKAC certification method with
1515 the updated NID creation version. This should correctly handle UTF8.
1518 *) Implement RFC5746. Re-enable renegotiation but require the extension
1519 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1520 turns out to be a bad idea. It has been replaced by
1521 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1522 SSL_CTX_set_options(). This is really not recommended unless you
1523 know what you are doing.
1524 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1526 *) Fixes to stateless session resumption handling. Use initial_ctx when
1527 issuing and attempting to decrypt tickets in case it has changed during
1528 servername handling. Use a non-zero length session ID when attempting
1529 stateless session resumption: this makes it possible to determine if
1530 a resumption has occurred immediately after receiving server hello
1531 (several places in OpenSSL subtly assume this) instead of later in
1535 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1536 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1537 fixes for a few places where the return code is not checked
1539 [Julia Lawall <julia@diku.dk>]
1541 *) Add --strict-warnings option to Configure script to include devteam
1542 warnings in other configurations.
1545 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1546 makes it possible to install openssl libraries in locations which
1547 have names other than "lib", for example "/usr/lib64" which some
1549 [Steve Henson, based on patch from Jeremy Utley]
1551 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1552 X690 8.9.12 and can produce some misleading textual output of OIDs.
1553 [Steve Henson, reported by Dan Kaminsky]
1555 *) Delete MD2 from algorithm tables. This follows the recommendation in
1556 several standards that it is not used in new applications due to
1557 several cryptographic weaknesses. For binary compatibility reasons
1558 the MD2 API is still compiled in by default.
1561 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1565 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1566 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1568 [Guenter <lists@gknw.net>]
1570 *) Fix the server certificate chain building code to use X509_verify_cert(),
1571 it used to have an ad-hoc builder which was unable to cope with anything
1572 other than a simple chain.
1573 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1575 *) Don't check self signed certificate signatures in X509_verify_cert()
1576 by default (a flag can override this): it just wastes time without
1577 adding any security. As a useful side effect self signed root CAs
1578 with non-FIPS digests are now usable in FIPS mode.
1581 *) In dtls1_process_out_of_seq_message() the check if the current message
1582 is already buffered was missing. For every new message was memory
1583 allocated, allowing an attacker to perform an denial of service attack
1584 with sending out of seq handshake messages until there is no memory
1585 left. Additionally every future messege was buffered, even if the
1586 sequence number made no sense and would be part of another handshake.
1587 So only messages with sequence numbers less than 10 in advance will be
1588 buffered. (CVE-2009-1378)
1589 [Robin Seggelmann, discovered by Daniel Mentz]
1591 *) Records are buffered if they arrive with a future epoch to be
1592 processed after finishing the corresponding handshake. There is
1593 currently no limitation to this buffer allowing an attacker to perform
1594 a DOS attack with sending records with future epochs until there is no
1595 memory left. This patch adds the pqueue_size() function to detemine
1596 the size of a buffer and limits the record buffer to 100 entries.
1598 [Robin Seggelmann, discovered by Daniel Mentz]
1600 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1601 parent structure is freed. (CVE-2009-1379)
1604 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1605 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1608 [Ilya O. <vrghost@gmail.com>]
1610 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1612 *) Disable renegotiation completely - this fixes a severe security
1613 problem (CVE-2009-3555) at the cost of breaking all
1614 renegotiation. Renegotiation can be re-enabled by setting
1615 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1616 run-time. This is really not recommended unless you know what
1620 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1622 *) Don't set val to NULL when freeing up structures, it is freed up by
1623 underlying code. If sizeof(void *) > sizeof(long) this can result in
1624 zeroing past the valid field. (CVE-2009-0789)
1625 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1627 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1628 checked correctly. This would allow some invalid signed attributes to
1629 appear to verify correctly. (CVE-2009-0591)
1630 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1632 *) Reject UniversalString and BMPString types with invalid lengths. This
1633 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1634 a legal length. (CVE-2009-0590)
1637 *) Set S/MIME signing as the default purpose rather than setting it
1638 unconditionally. This allows applications to override it at the store
1642 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1643 to handle some structures.
1646 *) Improve efficiency of mem_gets: don't search whole buffer each time
1648 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1650 *) New -hex option for openssl rand.
1653 *) Print out UTF8String and NumericString when parsing ASN1.
1656 *) Support NumericString type for name components.
1659 *) Allow CC in the environment to override the automatically chosen
1660 compiler. Note that nothing is done to ensure flags work with the
1664 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1666 *) Properly check EVP_VerifyFinal() and similar return values
1668 [Ben Laurie, Bodo Moeller, Google Security Team]
1670 *) Enable TLS extensions by default.
1673 *) Allow the CHIL engine to be loaded, whether the application is
1674 multithreaded or not. (This does not release the developer from the
1675 obligation to set up the dynamic locking callbacks.)
1676 [Sander Temme <sander@temme.net>]
1678 *) Use correct exit code if there is an error in dgst command.
1679 [Steve Henson; problem pointed out by Roland Dirlewanger]
1681 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1682 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1685 *) Add experimental JPAKE support, including demo authentication in
1686 s_client and s_server.
1689 *) Set the comparison function in v3_addr_canonize().
1690 [Rob Austein <sra@hactrn.net>]
1692 *) Add support for XMPP STARTTLS in s_client.
1693 [Philip Paeps <philip@freebsd.org>]
1695 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1696 to ensure that even with this option, only ciphersuites in the
1697 server's preference list will be accepted. (Note that the option
1698 applies only when resuming a session, so the earlier behavior was
1699 just about the algorithm choice for symmetric cryptography.)
1702 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1704 *) Fix NULL pointer dereference if a DTLS server received
1705 ChangeCipherSpec as first record (CVE-2009-1386).
1708 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1709 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1712 *) The fix in 0.9.8c that supposedly got rid of unsafe
1713 double-checked locking was incomplete for RSA blinding,
1714 addressing just one layer of what turns out to have been
1715 doubly unsafe triple-checked locking.
1717 So now fix this for real by retiring the MONT_HELPER macro
1718 in crypto/rsa/rsa_eay.c.
1720 [Bodo Moeller; problem pointed out by Marius Schilder]
1722 *) Various precautionary measures:
1724 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1726 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1727 (NB: This would require knowledge of the secret session ticket key
1728 to exploit, in which case you'd be SOL either way.)
1730 - Change bn_nist.c so that it will properly handle input BIGNUMs
1731 outside the expected range.
1733 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1736 [Neel Mehta, Bodo Moeller]
1738 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1739 the load fails. Useful for distros.
1740 [Ben Laurie and the FreeBSD team]
1742 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1745 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1748 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1750 This work was sponsored by Logica.
1753 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1754 keystores. Support for SSL/TLS client authentication too.
1755 Not compiled unless enable-capieng specified to Configure.
1757 This work was sponsored by Logica.
1760 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1761 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1762 attribute creation routines such as certifcate requests and PKCS#12
1766 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1768 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1769 handshake which could lead to a cilent crash as found using the
1770 Codenomicon TLS test suite (CVE-2008-1672)
1771 [Steve Henson, Mark Cox]
1773 *) Fix double free in TLS server name extensions which could lead to
1774 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1777 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1779 Clear the error queue to ensure that error entries left from
1780 older function calls do not interfere with the correct operation.
1781 [Lutz Jaenicke, Erik de Castro Lopo]
1783 *) Remove root CA certificates of commercial CAs:
1785 The OpenSSL project does not recommend any specific CA and does not
1786 have any policy with respect to including or excluding any CA.
1787 Therefore it does not make any sense to ship an arbitrary selection
1788 of root CA certificates with the OpenSSL software.
1791 *) RSA OAEP patches to fix two separate invalid memory reads.
1792 The first one involves inputs when 'lzero' is greater than
1793 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1794 before the beginning of from). The second one involves inputs where
1795 the 'db' section contains nothing but zeroes (there is a one-byte
1796 invalid read after the end of 'db').
1797 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1799 *) Partial backport from 0.9.9-dev:
1801 Introduce bn_mul_mont (dedicated Montgomery multiplication
1802 procedure) as a candidate for BIGNUM assembler implementation.
1803 While 0.9.9-dev uses assembler for various architectures, only
1804 x86_64 is available by default here in the 0.9.8 branch, and
1805 32-bit x86 is available through a compile-time setting.
1807 To try the 32-bit x86 assembler implementation, use Configure
1808 option "enable-montasm" (which exists only for this backport).
1810 As "enable-montasm" for 32-bit x86 disclaims code stability
1811 anyway, in this constellation we activate additional code
1812 backported from 0.9.9-dev for further performance improvements,
1813 namely BN_from_montgomery_word. (To enable this otherwise,
1814 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1816 [Andy Polyakov (backport partially by Bodo Moeller)]
1818 *) Add TLS session ticket callback. This allows an application to set
1819 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1820 values. This is useful for key rollover for example where several key
1821 sets may exist with different names.
1824 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1825 This was broken until now in 0.9.8 releases, such that the only way
1826 a registered ENGINE could be used (assuming it initialises
1827 successfully on the host) was to explicitly set it as the default
1828 for the relevant algorithms. This is in contradiction with 0.9.7
1829 behaviour and the documentation. With this fix, when an ENGINE is
1830 registered into a given algorithm's table of implementations, the
1831 'uptodate' flag is reset so that auto-discovery will be used next
1832 time a new context for that algorithm attempts to select an
1834 [Ian Lister (tweaked by Geoff Thorpe)]
1836 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1837 implemention in the following ways:
1839 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1842 Lack of BER streaming support means one pass streaming processing is
1843 only supported if data is detached: setting the streaming flag is
1844 ignored for embedded content.
1846 CMS support is disabled by default and must be explicitly enabled
1847 with the enable-cms configuration option.
1850 *) Update the GMP engine glue to do direct copies between BIGNUM and
1851 mpz_t when openssl and GMP use the same limb size. Otherwise the
1852 existing "conversion via a text string export" trick is still used.
1853 [Paul Sheer <paulsheer@gmail.com>]
1855 *) Zlib compression BIO. This is a filter BIO which compressed and
1856 uncompresses any data passed through it.
1859 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1860 RFC3394 compatible AES key wrapping.
1863 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1864 sets string data without copying. X509_ALGOR_set0() and
1865 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1866 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1867 from an X509_ATTRIBUTE structure optionally checking it occurs only
1868 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1872 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1873 to get the expected BN_FLG_CONSTTIME behavior.
1874 [Bodo Moeller (Google)]
1878 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1879 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1880 - added some more tests to do_tests.pl
1881 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1882 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1883 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1884 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1885 - various changes to netware.pl to enable gcc-cross builds on Win32
1887 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1888 - various changes to fix missing prototype warnings
1889 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1890 - added AES, WHIRLPOOL and CPUID assembler code to build files
1891 - added missing AES assembler make rules to mk1mf.pl
1892 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1893 [Guenter Knauf <eflash@gmx.net>]
1895 *) Implement certificate status request TLS extension defined in RFC3546.
1896 A client can set the appropriate parameters and receive the encoded
1897 OCSP response via a callback. A server can query the supplied parameters
1898 and set the encoded OCSP response in the callback. Add simplified examples
1899 to s_client and s_server.
1902 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1904 *) Fix various bugs:
1905 + Binary incompatibility of ssl_ctx_st structure
1906 + DTLS interoperation with non-compliant servers
1907 + Don't call get_session_cb() without proposed session
1908 + Fix ia64 assembler code
1909 [Andy Polyakov, Steve Henson]
1911 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1913 *) DTLS Handshake overhaul. There were longstanding issues with
1914 OpenSSL DTLS implementation, which were making it impossible for
1915 RFC 4347 compliant client to communicate with OpenSSL server.
1916 Unfortunately just fixing these incompatibilities would "cut off"
1917 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1918 server keeps tolerating non RFC compliant syntax. The opposite is
1919 not true, 0.9.8f client can not communicate with earlier server.
1920 This update even addresses CVE-2007-4995.
1923 *) Changes to avoid need for function casts in OpenSSL: some compilers
1924 (gcc 4.2 and later) reject their use.
1925 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1928 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1929 RFC4507bis. The encrypted ticket format is an encrypted encoded
1930 SSL_SESSION structure, that way new session features are automatically
1933 If a client application caches session in an SSL_SESSION structure
1934 support is transparent because tickets are now stored in the encoded
1937 The SSL_CTX structure automatically generates keys for ticket
1938 protection in servers so again support should be possible
1939 with no application modification.
1941 If a client or server wishes to disable RFC4507 support then the option
1942 SSL_OP_NO_TICKET can be set.
1944 Add a TLS extension debugging callback to allow the contents of any client
1945 or server extensions to be examined.
1947 This work was sponsored by Google.
1950 *) Add initial support for TLS extensions, specifically for the server_name
1951 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1952 have new members for a host name. The SSL data structure has an
1953 additional member SSL_CTX *initial_ctx so that new sessions can be
1954 stored in that context to allow for session resumption, even after the
1955 SSL has been switched to a new SSL_CTX in reaction to a client's
1956 server_name extension.
1958 New functions (subject to change):
1960 SSL_get_servername()
1961 SSL_get_servername_type()
1964 New CTRL codes and macros (subject to change):
1966 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1967 - SSL_CTX_set_tlsext_servername_callback()
1968 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1969 - SSL_CTX_set_tlsext_servername_arg()
1970 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1972 openssl s_client has a new '-servername ...' option.
1974 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1975 '-key2 ...', '-servername_fatal' (subject to change). This allows
1976 testing the HostName extension for a specific single host name ('-cert'
1977 and '-key' remain fallbacks for handshakes without HostName
1978 negotiation). If the unrecogninzed_name alert has to be sent, this by
1979 default is a warning; it becomes fatal with the '-servername_fatal'
1982 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1984 *) Add AES and SSE2 assembly language support to VC++ build.
1987 *) Mitigate attack on final subtraction in Montgomery reduction.
1990 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1991 (which previously caused an internal error).
1994 *) Squeeze another 10% out of IGE mode when in != out.
1997 *) AES IGE mode speedup.
1998 [Dean Gaudet (Google)]
2000 *) Add the Korean symmetric 128-bit cipher SEED (see
2001 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2002 add SEED ciphersuites from RFC 4162:
2004 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2005 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2006 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2007 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2009 To minimize changes between patchlevels in the OpenSSL 0.9.8
2010 series, SEED remains excluded from compilation unless OpenSSL
2011 is configured with 'enable-seed'.
2012 [KISA, Bodo Moeller]
2014 *) Mitigate branch prediction attacks, which can be practical if a
2015 single processor is shared, allowing a spy process to extract
2016 information. For detailed background information, see
2017 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2018 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2019 and Necessary Software Countermeasures"). The core of the change
2020 are new versions BN_div_no_branch() and
2021 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2022 respectively, which are slower, but avoid the security-relevant
2023 conditional branches. These are automatically called by BN_div()
2024 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2025 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2026 remove a conditional branch.
2028 BN_FLG_CONSTTIME is the new name for the previous
2029 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2030 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2031 in the exponent causes BN_mod_exp_mont() to use the alternative
2032 implementation in BN_mod_exp_mont_consttime().) The old name
2033 remains as a deprecated alias.
2035 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2036 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2037 constant-time implementations for more than just exponentiation.
2038 Here too the old name is kept as a deprecated alias.
2040 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2041 the BN_BLINDING structure gets an independent copy of the
2042 modulus. This means that the previous "BIGNUM *m" argument to
2043 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2044 essentially becomes "const BIGNUM *m", although we can't actually
2045 change this in the header file before 0.9.9. It allows
2046 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2047 enable BN_FLG_CONSTTIME.
2049 [Matthew D Wood (Intel Corp)]
2051 *) In the SSL/TLS server implementation, be strict about session ID
2052 context matching (which matters if an application uses a single
2053 external cache for different purposes). Previously,
2054 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2055 set. This did ensure strict client verification, but meant that,
2056 with applications using a single external cache for quite
2057 different requirements, clients could circumvent ciphersuite
2058 restrictions for a given session ID context by starting a session
2059 in a different context.
2062 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2063 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2064 authentication-only ciphersuites.
2067 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2068 not complete and could lead to a possible single byte overflow
2069 (CVE-2007-5135) [Ben Laurie]
2071 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2073 *) Since AES128 and AES256 (and similarly Camellia128 and
2074 Camellia256) share a single mask bit in the logic of
2075 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2076 kludge to work properly if AES128 is available and AES256 isn't
2077 (or if Camellia128 is available and Camellia256 isn't).
2080 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2081 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2082 When a point or a seed is encoded in a BIT STRING, we need to
2083 prevent the removal of trailing zero bits to get the proper DER
2084 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2085 of a NamedBitList, for which trailing 0 bits need to be removed.)
2088 *) Have SSL/TLS server implementation tolerate "mismatched" record
2089 protocol version while receiving ClientHello even if the
2090 ClientHello is fragmented. (The server can't insist on the
2091 particular protocol version it has chosen before the ServerHello
2092 message has informed the client about his choice.)
2095 *) Add RFC 3779 support.
2096 [Rob Austein for ARIN, Ben Laurie]
2098 *) Load error codes if they are not already present instead of using a
2099 static variable. This allows them to be cleanly unloaded and reloaded.
2100 Improve header file function name parsing.
2103 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2104 or CAPABILITY handshake as required by RFCs.
2107 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2109 *) Introduce limits to prevent malicious keys being able to
2110 cause a denial of service. (CVE-2006-2940)
2111 [Steve Henson, Bodo Moeller]
2113 *) Fix ASN.1 parsing of certain invalid structures that can result
2114 in a denial of service. (CVE-2006-2937) [Steve Henson]
2116 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2117 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2119 *) Fix SSL client code which could crash if connecting to a
2120 malicious SSLv2 server. (CVE-2006-4343)
2121 [Tavis Ormandy and Will Drewry, Google Security Team]
2123 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2124 match only those. Before that, "AES256-SHA" would be interpreted
2125 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2126 the same strength classification in 0.9.7h) as we currently only
2127 have a single AES bit in the ciphersuite description bitmap.
2128 That change, however, also applied to ciphersuite strings such as
2129 "RC4-MD5" that intentionally matched multiple ciphersuites --
2130 namely, SSL 2.0 ciphersuites in addition to the more common ones
2131 from SSL 3.0/TLS 1.0.
2133 So we change the selection algorithm again: Naming an explicit
2134 ciphersuite selects this one ciphersuite, and any other similar
2135 ciphersuite (same bitmap) from *other* protocol versions.
2136 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2137 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2139 Since SSL 2.0 does not have any ciphersuites for which the
2140 128/256 bit distinction would be relevant, this works for now.
2141 The proper fix will be to use different bits for AES128 and
2142 AES256, which would have avoided the problems from the beginning;
2143 however, bits are scarce, so we can only do this in a new release
2144 (not just a patchlevel) when we can change the SSL_CIPHER
2145 definition to split the single 'unsigned long mask' bitmap into
2146 multiple values to extend the available space.
2150 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2152 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2153 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2155 *) Add AES IGE and biIGE modes.
2158 *) Change the Unix randomness entropy gathering to use poll() when
2159 possible instead of select(), since the latter has some
2160 undesirable limitations.
2161 [Darryl Miles via Richard Levitte and Bodo Moeller]
2163 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2164 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2165 cannot be implicitly activated as part of, e.g., the "AES" alias.
2166 However, please upgrade to OpenSSL 0.9.9[-dev] for
2167 non-experimental use of the ECC ciphersuites to get TLS extension
2168 support, which is required for curve and point format negotiation
2169 to avoid potential handshake problems.
2172 *) Disable rogue ciphersuites:
2174 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2175 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2176 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2178 The latter two were purportedly from
2179 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2182 Also deactivate the remaining ciphersuites from
2183 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2184 unofficial, and the ID has long expired.
2187 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2188 dual-core machines) and other potential thread-safety issues.
2191 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2192 versions), which is now available for royalty-free use
2193 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2194 Also, add Camellia TLS ciphersuites from RFC 4132.
2196 To minimize changes between patchlevels in the OpenSSL 0.9.8
2197 series, Camellia remains excluded from compilation unless OpenSSL
2198 is configured with 'enable-camellia'.
2201 *) Disable the padding bug check when compression is in use. The padding
2202 bug check assumes the first packet is of even length, this is not
2203 necessarily true if compresssion is enabled and can result in false
2204 positives causing handshake failure. The actual bug test is ancient
2205 code so it is hoped that implementations will either have fixed it by
2206 now or any which still have the bug do not support compression.
2209 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2211 *) When applying a cipher rule check to see if string match is an explicit
2212 cipher suite and only match that one cipher suite if it is.
2215 *) Link in manifests for VC++ if needed.
2216 [Austin Ziegler <halostatue@gmail.com>]
2218 *) Update support for ECC-based TLS ciphersuites according to
2219 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2220 TLS extensions, which are supported starting with the 0.9.9
2221 branch, not in the OpenSSL 0.9.8 branch).
2224 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2225 opaque EVP_CIPHER_CTX handling.
2228 *) Fixes and enhancements to zlib compression code. We now only use
2229 "zlib1.dll" and use the default __cdecl calling convention on Win32
2230 to conform with the standards mentioned here:
2231 http://www.zlib.net/DLL_FAQ.txt
2232 Static zlib linking now works on Windows and the new --with-zlib-include
2233 --with-zlib-lib options to Configure can be used to supply the location
2234 of the headers and library. Gracefully handle case where zlib library
2238 *) Several fixes and enhancements to the OID generation code. The old code
2239 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2240 handle numbers larger than ULONG_MAX, truncated printing and had a
2241 non standard OBJ_obj2txt() behaviour.
2244 *) Add support for building of engines under engine/ as shared libraries
2245 under VC++ build system.
2248 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2249 Hopefully, we will not see any false combination of paths any more.
2252 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2254 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2255 (part of SSL_OP_ALL). This option used to disable the
2256 countermeasure against man-in-the-middle protocol-version
2257 rollback in the SSL 2.0 server implementation, which is a bad
2258 idea. (CVE-2005-2969)
2260 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2261 for Information Security, National Institute of Advanced Industrial
2262 Science and Technology [AIST], Japan)]
2264 *) Add two function to clear and return the verify parameter flags.
2267 *) Keep cipherlists sorted in the source instead of sorting them at
2268 runtime, thus removing the need for a lock.
2271 *) Avoid some small subgroup attacks in Diffie-Hellman.
2272 [Nick Mathewson and Ben Laurie]
2274 *) Add functions for well-known primes.
2277 *) Extended Windows CE support.
2278 [Satoshi Nakamura and Andy Polyakov]
2280 *) Initialize SSL_METHOD structures at compile time instead of during
2281 runtime, thus removing the need for a lock.
2284 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2285 attempting to decrypt each encrypted key in turn. Add support to
2289 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2291 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2294 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2297 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2298 key into the same file any more.
2301 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2304 *) Add -utf8 command line and config file option to 'ca'.
2305 [Stefan <stf@udoma.org]
2307 *) Removed the macro des_crypt(), as it seems to conflict with some
2308 libraries. Use DES_crypt().
2311 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2312 involves renaming the source and generated shared-libs for
2313 both. The engines will accept the corrected or legacy ids
2314 ('ncipher' and '4758_cca' respectively) when binding. NB,
2315 this only applies when building 'shared'.
2316 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2318 *) Add attribute functions to EVP_PKEY structure. Modify
2319 PKCS12_create() to recognize a CSP name attribute and
2320 use it. Make -CSP option work again in pkcs12 utility.
2323 *) Add new functionality to the bn blinding code:
2324 - automatic re-creation of the BN_BLINDING parameters after
2325 a fixed number of uses (currently 32)
2326 - add new function for parameter creation
2327 - introduce flags to control the update behaviour of the
2328 BN_BLINDING parameters
2329 - hide BN_BLINDING structure
2330 Add a second BN_BLINDING slot to the RSA structure to improve
2331 performance when a single RSA object is shared among several
2335 *) Add support for DTLS.
2336 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2338 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2339 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2342 *) Remove buggy and incompletet DH cert support from
2343 ssl/ssl_rsa.c and ssl/s3_both.c
2346 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2347 the apps/openssl applications.
2350 *) Compile clean with "-Wall -Wmissing-prototypes
2351 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2352 DEBUG_SAFESTACK must also be set.
2355 *) Change ./Configure so that certain algorithms can be disabled by default.
2356 The new counterpiece to "no-xxx" is "enable-xxx".
2358 The patented RC5 and MDC2 algorithms will now be disabled unless
2359 "enable-rc5" and "enable-mdc2", respectively, are specified.
2361 (IDEA remains enabled despite being patented. This is because IDEA
2362 is frequently required for interoperability, and there is no license
2363 fee for non-commercial use. As before, "no-idea" can be used to
2364 avoid this algorithm.)
2368 *) Add processing of proxy certificates (see RFC 3820). This work was
2369 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2370 EGEE (Enabling Grids for E-science in Europe).
2373 *) RC4 performance overhaul on modern architectures/implementations, such
2374 as Intel P4, IA-64 and AMD64.
2377 *) New utility extract-section.pl. This can be used specify an alternative
2378 section number in a pod file instead of having to treat each file as
2379 a separate case in Makefile. This can be done by adding two lines to the
2382 =for comment openssl_section:XXX
2384 The blank line is mandatory.
2388 *) New arguments -certform, -keyform and -pass for s_client and s_server
2389 to allow alternative format key and certificate files and passphrase
2393 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2394 update associated structures and add various utility functions.
2396 Add new policy related verify parameters, include policy checking in
2397 standard verify code. Enhance 'smime' application with extra parameters
2398 to support policy checking and print out.
2401 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2402 Nehemiah processors. These extensions support AES encryption in hardware
2403 as well as RNG (though RNG support is currently disabled).
2404 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2406 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2409 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2410 [Andy Polyakov and a number of other people]
2412 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2413 implementation contributed by IBM.
2414 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2416 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2417 exponent rather than 'unsigned long'. There is a corresponding change to
2418 the new 'rsa_keygen' element of the RSA_METHOD structure.
2419 [Jelte Jansen, Geoff Thorpe]
2421 *) Functionality for creating the initial serial number file is now
2422 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2424 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2425 number file to 1, which is bound to cause problems. To avoid
2426 the problems while respecting compatibility between different 0.9.7
2427 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2428 CA.pl for serial number initialization. With the new release 0.9.8,
2429 we can fix the problem directly in the 'ca' utility.)
2432 *) Reduced header interdepencies by declaring more opaque objects in
2433 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2434 give fewer recursive includes, which could break lazy source code - so
2435 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2436 developers should define this symbol when building and using openssl to
2437 ensure they track the recommended behaviour, interfaces, [etc], but
2438 backwards-compatible behaviour prevails when this isn't defined.
2441 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2444 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2445 This will generate a random key of the appropriate length based on the
2446 cipher context. The EVP_CIPHER can provide its own random key generation
2447 routine to support keys of a specific form. This is used in the des and
2448 3des routines to generate a key of the correct parity. Update S/MIME
2449 code to use new functions and hence generate correct parity DES keys.
2450 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2451 valid (weak or incorrect parity).
2454 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2455 as looking them up. This is useful when the verified structure may contain
2456 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2457 present unless the new PKCS7_NO_CRL flag is asserted.
2460 *) Extend ASN1 oid configuration module. It now additionally accepts the
2463 shortName = some long name, 1.2.3.4
2466 *) Reimplemented the BN_CTX implementation. There is now no more static
2467 limitation on the number of variables it can handle nor the depth of the
2468 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2469 information can now expand as required, and rather than having a single
2470 static array of bignums, BN_CTX now uses a linked-list of such arrays
2471 allowing it to expand on demand whilst maintaining the usefulness of
2472 BN_CTX's "bundling".
2475 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2476 to allow all RSA operations to function using a single BN_CTX.
2479 *) Preliminary support for certificate policy evaluation and checking. This
2480 is initially intended to pass the tests outlined in "Conformance Testing
2481 of Relying Party Client Certificate Path Processing Logic" v1.07.
2484 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2485 remained unused and not that useful. A variety of other little bignum
2486 tweaks and fixes have also been made continuing on from the audit (see
2490 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2491 associated ASN1, EVP and SSL functions and old ASN1 macros.
2494 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2495 and this should never fail. So the return value from the use of
2496 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2497 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2500 *) BN_CTX_get() should return zero-valued bignums, providing the same
2501 initialised value as BN_new().
2502 [Geoff Thorpe, suggested by Ulf Möller]
2504 *) Support for inhibitAnyPolicy certificate extension.
2507 *) An audit of the BIGNUM code is underway, for which debugging code is
2508 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2509 is considered valid when processing BIGNUMs, and causes execution to
2510 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2511 further steps are taken to deliberately pollute unused data in BIGNUM
2512 structures to try and expose faulty code further on. For now, openssl will
2513 (in its default mode of operation) continue to tolerate the inconsistent
2514 forms that it has tolerated in the past, but authors and packagers should
2515 consider trying openssl and their own applications when compiled with
2516 these debugging symbols defined. It will help highlight potential bugs in
2517 their own code, and will improve the test coverage for OpenSSL itself. At
2518 some point, these tighter rules will become openssl's default to improve
2519 maintainability, though the assert()s and other overheads will remain only
2520 in debugging configurations. See bn.h for more details.
2521 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2523 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2524 that can only be obtained through BN_CTX_new() (which implicitly
2525 initialises it). The presence of this function only made it possible
2526 to overwrite an existing structure (and cause memory leaks).
2529 *) Because of the callback-based approach for implementing LHASH as a
2530 template type, lh_insert() adds opaque objects to hash-tables and
2531 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2532 to clean up those corresponding objects before destroying the hash table
2533 (and losing the object pointers). So some over-zealous constifications in
2534 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2535 objects as "const" and the lh_doall[_arg] callback wrappers are not
2536 prototyped to have "const" restrictions on the object pointers they are
2537 given (and so aren't required to cast them away any more).
2540 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2541 (speed) prefers to use its own implementation. The two implementations
2542 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2543 its object type properly exposed (MS_TM) instead of casting to/from "char
2544 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2545 aren't necessarily the greatest nomenclatures - but this is what was used
2546 internally to the implementation so I've used that for now.
2549 *) Ensure that deprecated functions do not get compiled when
2550 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2551 the self-tests were still using deprecated key-generation functions so
2552 these have been updated also.
2555 *) Reorganise PKCS#7 code to separate the digest location functionality
2556 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2557 New function PKCS7_set_digest() to set the digest type for PKCS#7
2558 digestedData type. Add additional code to correctly generate the
2559 digestedData type and add support for this type in PKCS7 initialization
2563 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2564 structure of type "other".
2567 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2568 sure the loop does correctly stop and breaking ("division by zero")
2569 modulus operations are not performed. The (pre-generated) prime
2570 table crypto/bn/bn_prime.h was already correct, but it could not be
2571 re-generated on some platforms because of the "division by zero"
2572 situation in the script.
2573 [Ralf S. Engelschall]
2575 *) Update support for ECC-based TLS ciphersuites according to
2576 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2577 SHA-1 now is only used for "small" curves (where the
2578 representation of a field element takes up to 24 bytes); for
2579 larger curves, the field element resulting from ECDH is directly
2580 used as premaster secret.
2581 [Douglas Stebila (Sun Microsystems Laboratories)]
2583 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2584 curve secp160r1 to the tests.
2585 [Douglas Stebila (Sun Microsystems Laboratories)]
2587 *) Add the possibility to load symbols globally with DSO.
2588 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2590 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2591 control of the error stack.
2594 *) Add support for STORE in ENGINE.
2597 *) Add the STORE type. The intention is to provide a common interface
2598 to certificate and key stores, be they simple file-based stores, or
2599 HSM-type store, or LDAP stores, or...
2600 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2603 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2604 pass a list of arguments to any function as well as provide a way
2605 for a function to pass data back to the caller.
2608 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2609 works like BUF_strdup() but can be used to duplicate a portion of
2610 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2614 *) Add the function sk_find_ex() which works like sk_find(), but will
2615 return an index to an element even if an exact match couldn't be
2616 found. The index is guaranteed to point at the element where the
2617 searched-for key would be inserted to preserve sorting order.
2620 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2621 takes an extra flags argument for optional functionality. Currently,
2622 the following flags are defined:
2624 OBJ_BSEARCH_VALUE_ON_NOMATCH
2625 This one gets OBJ_bsearch_ex() to return a pointer to the first
2626 element where the comparing function returns a negative or zero
2629 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2630 This one gets OBJ_bsearch_ex() to return a pointer to the first
2631 element where the comparing function returns zero. This is useful
2632 if there are more than one element where the comparing function
2636 *) Make it possible to create self-signed certificates with 'openssl ca'
2637 in such a way that the self-signed certificate becomes part of the
2638 CA database and uses the same mechanisms for serial number generation
2639 as all other certificate signing. The new flag '-selfsign' enables
2640 this functionality. Adapt CA.sh and CA.pl.in.
2643 *) Add functionality to check the public key of a certificate request
2644 against a given private. This is useful to check that a certificate
2645 request can be signed by that key (self-signing).
2648 *) Make it possible to have multiple active certificates with the same
2649 subject in the CA index file. This is done only if the keyword
2650 'unique_subject' is set to 'no' in the main CA section (default
2651 if 'CA_default') of the configuration file. The value is saved
2652 with the database itself in a separate index attribute file,
2653 named like the index file with '.attr' appended to the name.
2656 *) Generate muti valued AVAs using '+' notation in config files for
2660 *) Support for nameConstraints certificate extension.
2663 *) Support for policyConstraints certificate extension.
2666 *) Support for policyMappings certificate extension.
2669 *) Make sure the default DSA_METHOD implementation only uses its
2670 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2671 and change its own handlers to be NULL so as to remove unnecessary
2672 indirection. This lets alternative implementations fallback to the
2673 default implementation more easily.
2676 *) Support for directoryName in GeneralName related extensions
2680 *) Make it possible to link applications using Makefile.shared.
2681 Make that possible even when linking against static libraries!
2684 *) Support for single pass processing for S/MIME signing. This now
2685 means that S/MIME signing can be done from a pipe, in addition
2686 cleartext signing (multipart/signed type) is effectively streaming
2687 and the signed data does not need to be all held in memory.
2689 This is done with a new flag PKCS7_STREAM. When this flag is set
2690 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2691 is done after the data is output (and digests calculated) in
2692 SMIME_write_PKCS7().
2695 *) Add full support for -rpath/-R, both in shared libraries and
2696 applications, at least on the platforms where it's known how
2700 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2701 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2702 will now compute a table of multiples of the generator that
2703 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2704 faster (notably in the case of a single point multiplication,
2705 scalar * generator).
2706 [Nils Larsch, Bodo Moeller]
2708 *) IPv6 support for certificate extensions. The various extensions
2709 which use the IP:a.b.c.d can now take IPv6 addresses using the
2710 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2714 *) Added an ENGINE that implements RSA by performing private key
2715 exponentiations with the GMP library. The conversions to and from
2716 GMP's mpz_t format aren't optimised nor are any montgomery forms
2717 cached, and on x86 it appears OpenSSL's own performance has caught up.
2718 However there are likely to be other architectures where GMP could
2719 provide a boost. This ENGINE is not built in by default, but it can be
2720 specified at Configure time and should be accompanied by the necessary
2721 linker additions, eg;
2722 ./config -DOPENSSL_USE_GMP -lgmp
2725 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2726 testing availability of engines with "-t" - the old behaviour is
2727 produced by increasing the feature's verbosity with "-tt".
2730 *) ECDSA routines: under certain error conditions uninitialized BN objects
2731 could be freed. Solution: make sure initialization is performed early
2732 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2736 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2737 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2738 software implementations. For DSA and DH, parameter generation can
2739 also be overriden by providing the appropriate method callbacks.
2742 *) Change the "progress" mechanism used in key-generation and
2743 primality testing to functions that take a new BN_GENCB pointer in
2744 place of callback/argument pairs. The new API functions have "_ex"
2745 postfixes and the older functions are reimplemented as wrappers for
2746 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2747 declarations of the old functions to help (graceful) attempts to
2748 migrate to the new functions. Also, the new key-generation API
2749 functions operate on a caller-supplied key-structure and return
2750 success/failure rather than returning a key or NULL - this is to
2751 help make "keygen" another member function of RSA_METHOD etc.
2753 Example for using the new callback interface:
2755 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2759 BN_GENCB_set(&my_cb, my_callback, my_arg);
2761 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2762 /* For the meaning of a, b in calls to my_callback(), see the
2763 * documentation of the function that calls the callback.
2764 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2765 * my_callback should return 1 if it wants BN_is_prime_ex()
2766 * to continue, or 0 to stop.
2771 *) Change the ZLIB compression method to be stateful, and make it
2772 available to TLS with the number defined in
2773 draft-ietf-tls-compression-04.txt.
2776 *) Add the ASN.1 structures and functions for CertificatePair, which
2777 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2779 CertificatePair ::= SEQUENCE {
2780 forward [0] Certificate OPTIONAL,
2781 reverse [1] Certificate OPTIONAL,
2782 -- at least one of the pair shall be present -- }
2784 Also implement the PEM functions to read and write certificate
2785 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2787 This needed to be defined, mostly for the sake of the LDAP
2788 attribute crossCertificatePair, but may prove useful elsewhere as
2792 *) Make it possible to inhibit symlinking of shared libraries in
2793 Makefile.shared, for Cygwin's sake.
2796 *) Extend the BIGNUM API by creating a function
2797 void BN_set_negative(BIGNUM *a, int neg);
2798 and a macro that behave like
2799 int BN_is_negative(const BIGNUM *a);
2801 to avoid the need to access 'a->neg' directly in applications.
2804 *) Implement fast modular reduction for pseudo-Mersenne primes
2805 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2806 EC_GROUP_new_curve_GFp() will now automatically use this
2808 [Nils Larsch <nla@trustcenter.de>]
2810 *) Add new lock type (CRYPTO_LOCK_BN).
2813 *) Change the ENGINE framework to automatically load engines
2814 dynamically from specific directories unless they could be
2815 found to already be built in or loaded. Move all the
2816 current engines except for the cryptodev one to a new
2818 The engines in engines/ are built as shared libraries if
2819 the "shared" options was given to ./Configure or ./config.
2820 Otherwise, they are inserted in libcrypto.a.
2821 /usr/local/ssl/engines is the default directory for dynamic
2822 engines, but that can be overriden at configure time through
2823 the usual use of --prefix and/or --openssldir, and at run
2824 time with the environment variable OPENSSL_ENGINES.
2825 [Geoff Thorpe and Richard Levitte]
2827 *) Add Makefile.shared, a helper makefile to build shared
2828 libraries. Addapt Makefile.org.
2831 *) Add version info to Win32 DLLs.
2832 [Peter 'Luna' Runestig" <peter@runestig.com>]
2834 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2835 can be added using this API to created arbitrary PKCS#12
2836 files while avoiding the low level API.
2838 New options to PKCS12_create(), key or cert can be NULL and
2839 will then be omitted from the output file. The encryption
2840 algorithm NIDs can be set to -1 for no encryption, the mac
2841 iteration count can be set to 0 to omit the mac.
2843 Enhance pkcs12 utility by making the -nokeys and -nocerts
2844 options work when creating a PKCS#12 file. New option -nomac
2845 to omit the mac, NONE can be set for an encryption algorithm.
2846 New code is modified to use the enhanced PKCS12_create()
2847 instead of the low level API.
2850 *) Extend ASN1 encoder to support indefinite length constructed
2851 encoding. This can output sequences tags and octet strings in
2852 this form. Modify pk7_asn1.c to support indefinite length
2853 encoding. This is experimental and needs additional code to
2854 be useful, such as an ASN1 bio and some enhanced streaming
2857 Extend template encode functionality so that tagging is passed
2858 down to the template encoder.
2861 *) Let 'openssl req' fail if an argument to '-newkey' is not
2862 recognized instead of using RSA as a default.
2865 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2866 As these are not official, they are not included in "ALL";
2867 the "ECCdraft" ciphersuite group alias can be used to select them.
2868 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2870 *) Add ECDH engine support.
2871 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2873 *) Add ECDH in new directory crypto/ecdh/.
2874 [Douglas Stebila (Sun Microsystems Laboratories)]
2876 *) Let BN_rand_range() abort with an error after 100 iterations
2877 without success (which indicates a broken PRNG).
2880 *) Change BN_mod_sqrt() so that it verifies that the input value
2881 is really the square of the return value. (Previously,
2882 BN_mod_sqrt would show GIGO behaviour.)
2885 *) Add named elliptic curves over binary fields from X9.62, SECG,
2886 and WAP/WTLS; add OIDs that were still missing.
2888 [Sheueling Chang Shantz and Douglas Stebila
2889 (Sun Microsystems Laboratories)]
2891 *) Extend the EC library for elliptic curves over binary fields
2892 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2895 EC_GF2m_simple_method
2899 EC_GROUP_new_curve_GF2m
2900 EC_GROUP_set_curve_GF2m
2901 EC_GROUP_get_curve_GF2m
2902 EC_POINT_set_affine_coordinates_GF2m
2903 EC_POINT_get_affine_coordinates_GF2m
2904 EC_POINT_set_compressed_coordinates_GF2m
2906 Point compression for binary fields is disabled by default for
2907 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2910 As binary polynomials are represented as BIGNUMs, various members
2911 of the EC_GROUP and EC_POINT data structures can be shared
2912 between the implementations for prime fields and binary fields;
2913 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2914 are essentially identical to their ..._GFp counterparts.
2915 (For simplicity, the '..._GFp' prefix has been dropped from
2916 various internal method names.)
2918 An internal 'field_div' method (similar to 'field_mul' and
2919 'field_sqr') has been added; this is used only for binary fields.
2921 [Sheueling Chang Shantz and Douglas Stebila
2922 (Sun Microsystems Laboratories)]
2924 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2925 through methods ('mul', 'precompute_mult').
2927 The generic implementations (now internally called 'ec_wNAF_mul'
2928 and 'ec_wNAF_precomputed_mult') remain the default if these
2929 methods are undefined.
2931 [Sheueling Chang Shantz and Douglas Stebila
2932 (Sun Microsystems Laboratories)]
2934 *) New function EC_GROUP_get_degree, which is defined through
2935 EC_METHOD. For curves over prime fields, this returns the bit
2936 length of the modulus.
2938 [Sheueling Chang Shantz and Douglas Stebila
2939 (Sun Microsystems Laboratories)]
2941 *) New functions EC_GROUP_dup, EC_POINT_dup.
2942 (These simply call ..._new and ..._copy).
2944 [Sheueling Chang Shantz and Douglas Stebila
2945 (Sun Microsystems Laboratories)]
2947 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2948 Polynomials are represented as BIGNUMs (where the sign bit is not
2949 used) in the following functions [macros]:
2952 BN_GF2m_sub [= BN_GF2m_add]
2953 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2954 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2955 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2957 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2958 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2959 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2960 BN_GF2m_cmp [= BN_ucmp]
2962 (Note that only the 'mod' functions are actually for fields GF(2^m).
2963 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2965 For some functions, an the irreducible polynomial defining a
2966 field can be given as an 'unsigned int[]' with strictly
2967 decreasing elements giving the indices of those bits that are set;
2968 i.e., p[] represents the polynomial
2969 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2971 p[0] > p[1] > ... > p[k] = 0.
2972 This applies to the following functions:
2977 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2978 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2980 BN_GF2m_mod_sqrt_arr
2981 BN_GF2m_mod_solve_quad_arr
2985 Conversion can be performed by the following functions:
2990 bntest.c has additional tests for binary polynomial arithmetic.
2992 Two implementations for BN_GF2m_mod_div() are available.
2993 The default algorithm simply uses BN_GF2m_mod_inv() and
2994 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2995 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2996 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2998 [Sheueling Chang Shantz and Douglas Stebila
2999 (Sun Microsystems Laboratories)]
3001 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3002 functionality is disabled at compile-time.
3003 [Douglas Stebila <douglas.stebila@sun.com>]
3005 *) Change default behaviour of 'openssl asn1parse' so that more
3006 information is visible when viewing, e.g., a certificate:
3008 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3009 mode the content of non-printable OCTET STRINGs is output in a
3010 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3011 avoid the appearance of a printable string.
3012 [Nils Larsch <nla@trustcenter.de>]
3014 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3016 EC_GROUP_set_asn1_flag()
3017 EC_GROUP_get_asn1_flag()
3018 EC_GROUP_set_point_conversion_form()
3019 EC_GROUP_get_point_conversion_form()
3020 These control ASN1 encoding details:
3021 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3022 has been set to OPENSSL_EC_NAMED_CURVE.
3023 - Points are encoded in uncompressed form by default; options for
3024 asn1_for are as for point2oct, namely
3025 POINT_CONVERSION_COMPRESSED
3026 POINT_CONVERSION_UNCOMPRESSED
3027 POINT_CONVERSION_HYBRID
3029 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3032 EC_GROUP_get0_seed()
3033 EC_GROUP_get_seed_len()
3034 This is used only for ASN1 purposes (so far).
3035 [Nils Larsch <nla@trustcenter.de>]
3037 *) Add 'field_type' member to EC_METHOD, which holds the NID
3038 of the appropriate field type OID. The new function
3039 EC_METHOD_get_field_type() returns this value.
3040 [Nils Larsch <nla@trustcenter.de>]
3045 EC_POINT_point2hex()
3046 EC_POINT_hex2point()
3047 providing useful interfaces to EC_POINT_point2oct() and
3048 EC_POINT_oct2point().
3049 [Nils Larsch <nla@trustcenter.de>]
3051 *) Change internals of the EC library so that the functions
3052 EC_GROUP_set_generator()
3053 EC_GROUP_get_generator()
3054 EC_GROUP_get_order()
3055 EC_GROUP_get_cofactor()
3056 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3057 to methods, which would lead to unnecessary code duplication when
3058 adding different types of curves.
3059 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3061 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3062 arithmetic, and such that modified wNAFs are generated
3063 (which avoid length expansion in many cases).
3066 *) Add a function EC_GROUP_check_discriminant() (defined via
3067 EC_METHOD) that verifies that the curve discriminant is non-zero.
3069 Add a function EC_GROUP_check() that makes some sanity tests
3070 on a EC_GROUP, its generator and order. This includes
3071 EC_GROUP_check_discriminant().
3072 [Nils Larsch <nla@trustcenter.de>]
3074 *) Add ECDSA in new directory crypto/ecdsa/.
3076 Add applications 'openssl ecparam' and 'openssl ecdsa'
3077 (these are based on 'openssl dsaparam' and 'openssl dsa').
3079 ECDSA support is also included in various other files across the
3080 library. Most notably,
3081 - 'openssl req' now has a '-newkey ecdsa:file' option;
3082 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3083 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3084 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3085 them suitable for ECDSA where domain parameters must be
3086 extracted before the specific public key;
3087 - ECDSA engine support has been added.
3088 [Nils Larsch <nla@trustcenter.de>]
3090 *) Include some named elliptic curves, and add OIDs from X9.62,
3091 SECG, and WAP/WTLS. Each curve can be obtained from the new
3093 EC_GROUP_new_by_curve_name(),
3094 and the list of available named curves can be obtained with
3095 EC_get_builtin_curves().
3096 Also add a 'curve_name' member to EC_GROUP objects, which can be
3098 EC_GROUP_set_curve_name()
3099 EC_GROUP_get_curve_name()
3100 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3102 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3103 was actually never needed) and in BN_mul(). The removal in BN_mul()
3104 required a small change in bn_mul_part_recursive() and the addition
3105 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3106 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3107 bn_sub_words() and bn_add_words() except they take arrays with
3111 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3113 *) Cleanse PEM buffers before freeing them since they may contain
3115 [Benjamin Bennett <ben@psc.edu>]
3117 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3118 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3119 authentication-only ciphersuites.
3122 *) Since AES128 and AES256 share a single mask bit in the logic of
3123 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3124 kludge to work properly if AES128 is available and AES256 isn't.
3127 *) Expand security boundary to match 1.1.1 module.
3130 *) Remove redundant features: hash file source, editing of test vectors
3131 modify fipsld to use external fips_premain.c signature.
3134 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3135 run algorithm test programs.
3138 *) Make algorithm test programs more tolerant of whitespace.
3141 *) Have SSL/TLS server implementation tolerate "mismatched" record
3142 protocol version while receiving ClientHello even if the
3143 ClientHello is fragmented. (The server can't insist on the
3144 particular protocol version it has chosen before the ServerHello
3145 message has informed the client about his choice.)
3148 *) Load error codes if they are not already present instead of using a
3149 static variable. This allows them to be cleanly unloaded and reloaded.
3152 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3154 *) Introduce limits to prevent malicious keys being able to
3155 cause a denial of service. (CVE-2006-2940)
3156 [Steve Henson, Bodo Moeller]
3158 *) Fix ASN.1 parsing of certain invalid structures that can result
3159 in a denial of service. (CVE-2006-2937) [Steve Henson]
3161 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3162 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3164 *) Fix SSL client code which could crash if connecting to a
3165 malicious SSLv2 server. (CVE-2006-4343)
3166 [Tavis Ormandy and Will Drewry, Google Security Team]
3168 *) Change ciphersuite string processing so that an explicit
3169 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3170 will no longer include "AES128-SHA"), and any other similar
3171 ciphersuite (same bitmap) from *other* protocol versions (so that
3172 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3173 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3174 changes from 0.9.8b and 0.9.8d.
3177 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3179 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3180 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3182 *) Change the Unix randomness entropy gathering to use poll() when
3183 possible instead of select(), since the latter has some
3184 undesirable limitations.
3185 [Darryl Miles via Richard Levitte and Bodo Moeller]
3187 *) Disable rogue ciphersuites:
3189 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3190 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3191 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3193 The latter two were purportedly from
3194 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3197 Also deactive the remaining ciphersuites from
3198 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3199 unofficial, and the ID has long expired.
3202 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3203 dual-core machines) and other potential thread-safety issues.
3206 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3208 *) Adapt fipsld and the build system to link against the validated FIPS
3209 module in FIPS mode.
3212 *) Fixes for VC++ 2005 build under Windows.
3215 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3216 from a Windows bash shell such as MSYS. It is autodetected from the
3217 "config" script when run from a VC++ environment. Modify standard VC++
3218 build to use fipscanister.o from the GNU make build.
3221 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3223 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3224 The value now differs depending on if you build for FIPS or not.
3225 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3226 safely run with a non-FIPSed libcrypto, as it may crash because of
3227 the difference induced by this change.
3230 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3232 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3233 (part of SSL_OP_ALL). This option used to disable the
3234 countermeasure against man-in-the-middle protocol-version
3235 rollback in the SSL 2.0 server implementation, which is a bad
3236 idea. (CVE-2005-2969)
3238 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3239 for Information Security, National Institute of Advanced Industrial
3240 Science and Technology [AIST], Japan)]
3242 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3243 mainly for FIPS compliance and not fully integrated at this stage.
3246 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3247 the exponentiation using a fixed-length exponent. (Otherwise,
3248 the information leaked through timing could expose the secret key
3249 after many signatures; cf. Bleichenbacher's attack on DSA with
3253 *) Make a new fixed-window mod_exp implementation the default for
3254 RSA, DSA, and DH private-key operations so that the sequence of
3255 squares and multiplies and the memory access pattern are
3256 independent of the particular secret key. This will mitigate
3257 cache-timing and potential related attacks.
3259 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3260 and this is automatically used by BN_mod_exp_mont() if the new flag
3261 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3262 will use this BN flag for private exponents unless the flag
3263 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3264 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3266 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3268 *) Change the client implementation for SSLv23_method() and
3269 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3270 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3271 (Previously, the SSL 2.0 backwards compatible Client Hello
3272 message format would be used even with SSL_OP_NO_SSLv2.)
3275 *) Add support for smime-type MIME parameter in S/MIME messages which some
3279 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3280 a threadsafe manner. Modify rsa code to use new function and add calls
3281 to dsa and dh code (which had race conditions before).
3284 *) Include the fixed error library code in the C error file definitions
3285 instead of fixing them up at runtime. This keeps the error code
3286 structures constant.
3289 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3291 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3294 *) Fixes for newer kerberos headers. NB: the casts are needed because
3295 the 'length' field is signed on one version and unsigned on another
3296 with no (?) obvious way to tell the difference, without these VC++
3297 complains. Also the "definition" of FAR (blank) is no longer included
3298 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3299 some needed definitions.
3302 *) Undo Cygwin change.
3305 *) Added support for proxy certificates according to RFC 3820.
3306 Because they may be a security thread to unaware applications,
3307 they must be explicitely allowed in run-time. See
3308 docs/HOWTO/proxy_certificates.txt for further information.
3311 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3313 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3314 server and client random values. Previously
3315 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3316 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3318 This change has negligible security impact because:
3320 1. Server and client random values still have 24 bytes of pseudo random
3323 2. Server and client random values are sent in the clear in the initial
3326 3. The master secret is derived using the premaster secret (48 bytes in
3327 size for static RSA ciphersuites) as well as client server and random
3330 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3333 [Stephen Henson, reported by UK NISCC]
3335 *) Use Windows randomness collection on Cygwin.
3338 *) Fix hang in EGD/PRNGD query when communication socket is closed
3339 prematurely by EGD/PRNGD.
3340 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3342 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3345 *) Back-port of selected performance improvements from development
3346 branch, as well as improved support for PowerPC platforms.
3349 *) Add lots of checks for memory allocation failure, error codes to indicate
3350 failure and freeing up memory if a failure occurs.
3351 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3353 *) Add new -passin argument to dgst.
3356 *) Perform some character comparisons of different types in X509_NAME_cmp:
3357 this is needed for some certificates that reencode DNs into UTF8Strings
3358 (in violation of RFC3280) and can't or wont issue name rollover
3362 *) Make an explicit check during certificate validation to see that
3363 the CA setting in each certificate on the chain is correct. As a
3364 side effect always do the following basic checks on extensions,
3365 not just when there's an associated purpose to the check:
3367 - if there is an unhandled critical extension (unless the user
3368 has chosen to ignore this fault)
3369 - if the path length has been exceeded (if one is set at all)
3370 - that certain extensions fit the associated purpose (if one has
3374 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3376 *) Avoid a race condition when CRLs are checked in a multi threaded
3377 environment. This would happen due to the reordering of the revoked
3378 entries during signature checking and serial number lookup. Now the
3379 encoding is cached and the serial number sort performed under a lock.
3380 Add new STACK function sk_is_sorted().
3383 *) Add Delta CRL to the extension code.
3386 *) Various fixes to s3_pkt.c so alerts are sent properly.
3387 [David Holmes <d.holmes@f5.com>]
3389 *) Reduce the chances of duplicate issuer name and serial numbers (in
3390 violation of RFC3280) using the OpenSSL certificate creation utilities.
3391 This is done by creating a random 64 bit value for the initial serial
3392 number when a serial number file is created or when a self signed
3393 certificate is created using 'openssl req -x509'. The initial serial
3394 number file is created using 'openssl x509 -next_serial' in CA.pl
3395 rather than being initialized to 1.
3398 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3400 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3401 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3402 [Joe Orton, Steve Henson]
3404 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3406 [Joe Orton, Steve Henson]
3408 *) Make it possible to have multiple active certificates with the same
3409 subject in the CA index file. This is done only if the keyword
3410 'unique_subject' is set to 'no' in the main CA section (default
3411 if 'CA_default') of the configuration file. The value is saved
3412 with the database itself in a separate index attribute file,
3413 named like the index file with '.attr' appended to the name.
3416 *) X509 verify fixes. Disable broken certificate workarounds when
3417 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3418 keyUsage extension present. Don't accept CRLs with unhandled critical
3419 extensions: since verify currently doesn't process CRL extensions this
3420 rejects a CRL with *any* critical extensions. Add new verify error codes
3424 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3425 A clarification of RFC2560 will require the use of OCTET STRINGs and
3426 some implementations cannot handle the current raw format. Since OpenSSL
3427 copies and compares OCSP nonces as opaque blobs without any attempt at
3428 parsing them this should not create any compatibility issues.
3431 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3432 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3433 this HMAC (and other) operations are several times slower than OpenSSL
3437 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3438 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3440 *) Use the correct content when signing type "other".
3443 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3445 *) Fix various bugs revealed by running the NISCC test suite:
3447 Stop out of bounds reads in the ASN1 code when presented with
3448 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3450 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3452 If verify callback ignores invalid public key errors don't try to check
3453 certificate signature with the NULL public key.
3457 *) New -ignore_err option in ocsp application to stop the server
3458 exiting on the first error in a request.
3461 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3462 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3466 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3467 extra data after the compression methods not only for TLS 1.0
3468 but also for SSL 3.0 (as required by the specification).
3469 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3471 *) Change X509_certificate_type() to mark the key as exported/exportable
3472 when it's 512 *bits* long, not 512 bytes.
3475 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3476 blocks during encryption.
3479 *) Various fixes to base64 BIO and non blocking I/O. On write
3480 flushes were not handled properly if the BIO retried. On read
3481 data was not being buffered properly and had various logic bugs.
3482 This also affects blocking I/O when the data being decoded is a
3486 *) Various S/MIME bugfixes and compatibility changes:
3487 output correct application/pkcs7 MIME type if
3488 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3489 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3490 of files as .eml work). Correctly handle very long lines in MIME
3494 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3496 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3497 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3498 a protocol version number mismatch like a decryption error
3499 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3502 *) Turn on RSA blinding by default in the default implementation
3503 to avoid a timing attack. Applications that don't want it can call
3504 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3505 They would be ill-advised to do so in most cases.
3506 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3508 *) Change RSA blinding code so that it works when the PRNG is not
3509 seeded (in this case, the secret RSA exponent is abused as
3510 an unpredictable seed -- if it is not unpredictable, there
3511 is no point in blinding anyway). Make RSA blinding thread-safe
3512 by remembering the creator's thread ID in rsa->blinding and
3513 having all other threads use local one-time blinding factors
3514 (this requires more computation than sharing rsa->blinding, but
3515 avoids excessive locking; and if an RSA object is not shared
3516 between threads, blinding will still be very fast).
3519 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3520 ENGINE as defaults for all supported algorithms irrespective of
3521 the 'flags' parameter. 'flags' is now honoured, so applications
3522 should make sure they are passing it correctly.
3525 *) Target "mingw" now allows native Windows code to be generated in
3526 the Cygwin environment as well as with the MinGW compiler.
3529 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3531 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3532 via timing by performing a MAC computation even if incorrrect
3533 block cipher padding has been found. This is a countermeasure
3534 against active attacks where the attacker has to distinguish
3535 between bad padding and a MAC verification error. (CVE-2003-0078)
3537 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3538 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3539 Martin Vuagnoux (EPFL, Ilion)]
3541 *) Make the no-err option work as intended. The intention with no-err
3542 is not to have the whole error stack handling routines removed from
3543 libcrypto, it's only intended to remove all the function name and
3544 reason texts, thereby removing some of the footprint that may not
3545 be interesting if those errors aren't displayed anyway.
3547 NOTE: it's still possible for any application or module to have it's
3548 own set of error texts inserted. The routines are there, just not
3549 used by default when no-err is given.
3552 *) Add support for FreeBSD on IA64.
3553 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3555 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3556 Kerberos function mit_des_cbc_cksum(). Before this change,
3557 the value returned by DES_cbc_cksum() was like the one from
3558 mit_des_cbc_cksum(), except the bytes were swapped.
3559 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3561 *) Allow an application to disable the automatic SSL chain building.
3562 Before this a rather primitive chain build was always performed in
3563 ssl3_output_cert_chain(): an application had no way to send the
3564 correct chain if the automatic operation produced an incorrect result.
3566 Now the chain builder is disabled if either:
3568 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3570 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3572 The reasoning behind this is that an application would not want the
3573 auto chain building to take place if extra chain certificates are
3574 present and it might also want a means of sending no additional
3575 certificates (for example the chain has two certificates and the
3579 *) Add the possibility to build without the ENGINE framework.
3580 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3582 *) Under Win32 gmtime() can return NULL: check return value in
3583 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3586 *) DSA routines: under certain error conditions uninitialized BN objects
3587 could be freed. Solution: make sure initialization is performed early
3588 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3589 Nils Larsch <nla@trustcenter.de> via PR#459)
3592 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3593 checked on reconnect on the client side, therefore session resumption
3594 could still fail with a "ssl session id is different" error. This
3595 behaviour is masked when SSL_OP_ALL is used due to
3596 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3597 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3598 followup to PR #377.
3601 *) IA-32 assembler support enhancements: unified ELF targets, support
3602 for SCO/Caldera platforms, fix for Cygwin shared build.
3605 *) Add support for FreeBSD on sparc64. As a consequence, support for
3606 FreeBSD on non-x86 processors is separate from x86 processors on
3607 the config script, much like the NetBSD support.
3608 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3610 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3612 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3615 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3616 code (06) was taken as the first octet of the session ID and the last
3617 octet was ignored consequently. As a result SSLv2 client side session
3618 caching could not have worked due to the session ID mismatch between
3620 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3624 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3625 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3629 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3630 seems that in spite of existing for more than a year, many application
3631 author have done nothing to provide the necessary callbacks, which
3632 means that this particular engine will not work properly anywhere.
3633 This is a very unfortunate situation which forces us, in the name
3634 of usability, to give the hw_ncipher.c a static lock, which is part
3636 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3637 appear in 0.9.8 or later. We EXPECT application authors to have
3638 dealt properly with this when 0.9.8 is released (unless we actually
3639 make such changes in the libcrypto locking code that changes will
3640 have to be made anyway).
3643 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3644 octets have been read, EOF or an error occurs. Without this change
3645 some truncated ASN1 structures will not produce an error.
3648 *) Disable Heimdal support, since it hasn't been fully implemented.
3649 Still give the possibility to force the use of Heimdal, but with
3650 warnings and a request that patches get sent to openssl-dev.
3653 *) Add the VC-CE target, introduce the WINCE sysname, and add
3654 INSTALL.WCE and appropriate conditionals to make it build.
3655 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3657 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3658 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3659 edit numbers of the version.
3660 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3662 *) Introduce safe string copy and catenation functions
3663 (BUF_strlcpy() and BUF_strlcat()).
3664 [Ben Laurie (CHATS) and Richard Levitte]
3666 *) Avoid using fixed-size buffers for one-line DNs.
3667 [Ben Laurie (CHATS)]
3669 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3670 resizing buffers containing secrets, and use where appropriate.
3671 [Ben Laurie (CHATS)]
3673 *) Avoid using fixed size buffers for configuration file location.
3674 [Ben Laurie (CHATS)]
3676 *) Avoid filename truncation for various CA files.
3677 [Ben Laurie (CHATS)]
3679 *) Use sizeof in preference to magic numbers.
3680 [Ben Laurie (CHATS)]
3682 *) Avoid filename truncation in cert requests.
3683 [Ben Laurie (CHATS)]
3685 *) Add assertions to check for (supposedly impossible) buffer
3687 [Ben Laurie (CHATS)]
3689 *) Don't cache truncated DNS entries in the local cache (this could
3690 potentially lead to a spoofing attack).
3691 [Ben Laurie (CHATS)]
3693 *) Fix various buffers to be large enough for hex/decimal
3694 representations in a platform independent manner.
3695 [Ben Laurie (CHATS)]
3697 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3698 resizing buffers containing secrets, and use where appropriate.
3699 [Ben Laurie (CHATS)]
3701 *) Add BIO_indent() to avoid much slightly worrying code to do
3703 [Ben Laurie (CHATS)]
3705 *) Convert sprintf()/BIO_puts() to BIO_printf().
3706 [Ben Laurie (CHATS)]
3708 *) buffer_gets() could terminate with the buffer only half
3710 [Ben Laurie (CHATS)]
3712 *) Add assertions to prevent user-supplied crypto functions from
3713 overflowing internal buffers by having large block sizes, etc.
3714 [Ben Laurie (CHATS)]
3716 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3718 [Ben Laurie (CHATS)]
3720 *) Eliminate unused copy of key in RC4.
3721 [Ben Laurie (CHATS)]
3723 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3724 [Ben Laurie (CHATS)]
3726 *) Fix off-by-one error in EGD path.
3727 [Ben Laurie (CHATS)]
3729 *) If RANDFILE path is too long, ignore instead of truncating.
3730 [Ben Laurie (CHATS)]
3732 *) Eliminate unused and incorrectly sized X.509 structure
3734 [Ben Laurie (CHATS)]
3736 *) Eliminate unused and dangerous function knumber().
3737 [Ben Laurie (CHATS)]
3739 *) Eliminate unused and dangerous structure, KSSL_ERR.
3740 [Ben Laurie (CHATS)]
3742 *) Protect against overlong session ID context length in an encoded
3743 session object. Since these are local, this does not appear to be
3745 [Ben Laurie (CHATS)]
3747 *) Change from security patch (see 0.9.6e below) that did not affect
3748 the 0.9.6 release series:
3750 Remote buffer overflow in SSL3 protocol - an attacker could
3751 supply an oversized master key in Kerberos-enabled versions.
3753 [Ben Laurie (CHATS)]
3755 *) Change the SSL kerb5 codes to match RFC 2712.
3758 *) Make -nameopt work fully for req and add -reqopt switch.
3759 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3761 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3762 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3764 *) Make sure tests can be performed even if the corresponding algorithms
3765 have been removed entirely. This was also the last step to make
3766 OpenSSL compilable with DJGPP under all reasonable conditions.
3767 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3769 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3770 to allow version independent disabling of normally unselected ciphers,
3771 which may be activated as a side-effect of selecting a single cipher.
3773 (E.g., cipher list string "RSA" enables ciphersuites that are left
3774 out of "ALL" because they do not provide symmetric encryption.
3775 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3776 [Lutz Jaenicke, Bodo Moeller]
3778 *) Add appropriate support for separate platform-dependent build
3779 directories. The recommended way to make a platform-dependent
3780 build directory is the following (tested on Linux), maybe with
3783 # Place yourself outside of the OpenSSL source tree. In
3784 # this example, the environment variable OPENSSL_SOURCE
3785 # is assumed to contain the absolute OpenSSL source directory.
3786 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3787 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3788 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3789 mkdir -p `dirname $F`
3790 ln -s $OPENSSL_SOURCE/$F $F
3793 To be absolutely sure not to disturb the source tree, a "make clean"
3794 is a good thing. If it isn't successfull, don't worry about it,
3795 it probably means the source directory is very clean.
3798 *) Make sure any ENGINE control commands make local copies of string
3799 pointers passed to them whenever necessary. Otherwise it is possible
3800 the caller may have overwritten (or deallocated) the original string
3801 data when a later ENGINE operation tries to use the stored values.
3802 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3804 *) Improve diagnostics in file reading and command-line digests.
3805 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3807 *) Add AES modes CFB and OFB to the object database. Correct an
3808 error in AES-CFB decryption.
3811 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3812 allows existing EVP_CIPHER_CTX structures to be reused after
3813 calling EVP_*Final(). This behaviour is used by encryption
3814 BIOs and some applications. This has the side effect that
3815 applications must explicitly clean up cipher contexts with
3816 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3819 *) Check the values of dna and dnb in bn_mul_recursive before calling
3820 bn_mul_comba (a non zero value means the a or b arrays do not contain
3821 n2 elements) and fallback to bn_mul_normal if either is not zero.
3824 *) Fix escaping of non-ASCII characters when using the -subj option
3825 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3828 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3829 form for "surname", serialNumber has no short form.
3830 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3831 therefore remove "mail" short name for "internet 7".
3832 The OID for unique identifiers in X509 certificates is
3833 x500UniqueIdentifier, not uniqueIdentifier.
3834 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3837 *) Add an "init" command to the ENGINE config module and auto initialize
3838 ENGINEs. Without any "init" command the ENGINE will be initialized
3839 after all ctrl commands have been executed on it. If init=1 the
3840 ENGINE is initailized at that point (ctrls before that point are run
3841 on the uninitialized ENGINE and after on the initialized one). If
3842 init=0 then the ENGINE will not be iniatialized at all.
3845 *) Fix the 'app_verify_callback' interface so that the user-defined
3846 argument is actually passed to the callback: In the
3847 SSL_CTX_set_cert_verify_callback() prototype, the callback
3848 declaration has been changed from
3851 int (*cb)(X509_STORE_CTX *,void *);
3852 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3853 i=s->ctx->app_verify_callback(&ctx)
3854 has been changed into
3855 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3857 To update applications using SSL_CTX_set_cert_verify_callback(),
3858 a dummy argument can be added to their callback functions.
3859 [D. K. Smetters <smetters@parc.xerox.com>]
3861 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3862 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3864 *) Add and OPENSSL_LOAD_CONF define which will cause
3865 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3866 This allows older applications to transparently support certain
3867 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3868 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3869 load the config file and OPENSSL_add_all_algorithms_conf() which will
3870 always load it have also been added.
3873 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3874 Adjust NIDs and EVP layer.
3875 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3877 *) Config modules support in openssl utility.
3879 Most commands now load modules from the config file,
3880 though in a few (such as version) this isn't done
3881 because it couldn't be used for anything.
3883 In the case of ca and req the config file used is
3884 the same as the utility itself: that is the -config
3885 command line option can be used to specify an
3889 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3890 use "openssl_conf" if filename is NULL use default openssl config file.
3893 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3894 config section name. Add a new flag to tolerate a missing config file
3895 and move code to CONF_modules_load_file().
3898 *) Support for crypto accelerator cards from Accelerated Encryption
3899 Processing, www.aep.ie. (Use engine 'aep')
3900 The support was copied from 0.9.6c [engine] and adapted/corrected
3901 to work with the new engine framework.
3902 [AEP Inc. and Richard Levitte]
3904 *) Support for SureWare crypto accelerator cards from Baltimore
3905 Technologies. (Use engine 'sureware')
3906 The support was copied from 0.9.6c [engine] and adapted
3907 to work with the new engine framework.
3910 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3911 make the newer ENGINE framework commands for the CHIL engine work.
3912 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3914 *) Make it possible to produce shared libraries on ReliantUNIX.
3915 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3917 *) Add the configuration target debug-linux-ppro.
3918 Make 'openssl rsa' use the general key loading routines
3919 implemented in apps.c, and make those routines able to
3920 handle the key format FORMAT_NETSCAPE and the variant
3922 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3924 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3925 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3927 *) Add -keyform to rsautl, and document -engine.
3928 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3930 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3931 BIO_R_NO_SUCH_FILE error code rather than the generic
3932 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3935 *) Add new functions
3937 ERR_peek_last_error_line
3938 ERR_peek_last_error_line_data.
3939 These are similar to
3942 ERR_peek_error_line_data,
3943 but report on the latest error recorded rather than the first one
3944 still in the error queue.
3945 [Ben Laurie, Bodo Moeller]
3947 *) default_algorithms option in ENGINE config module. This allows things
3949 default_algorithms = ALL
3950 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3953 *) Prelminary ENGINE config module.
3956 *) New experimental application configuration code.
3959 *) Change the AES code to follow the same name structure as all other
3960 symmetric ciphers, and behave the same way. Move everything to
3961 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3962 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3964 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3965 [Ben Laurie and Theo de Raadt]
3967 *) Add option to output public keys in req command.
3968 [Massimiliano Pala madwolf@openca.org]
3970 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3971 (up to about 10% better than before for P-192 and P-224).
3974 *) New functions/macros
3976 SSL_CTX_set_msg_callback(ctx, cb)
3977 SSL_CTX_set_msg_callback_arg(ctx, arg)
3978 SSL_set_msg_callback(ssl, cb)
3979 SSL_set_msg_callback_arg(ssl, arg)
3981 to request calling a callback function
3983 void cb(int write_p, int version, int content_type,
3984 const void *buf, size_t len, SSL *ssl, void *arg)
3986 whenever a protocol message has been completely received
3987 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3988 protocol version according to which the SSL library interprets
3989 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3990 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3991 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3992 specification (change_cipher_spec(20), alert(21), handshake(22)).
3993 'buf' and 'len' point to the actual message, 'ssl' to the
3994 SSL object, and 'arg' is the application-defined value set by
3995 SSL[_CTX]_set_msg_callback_arg().
3997 'openssl s_client' and 'openssl s_server' have new '-msg' options
3998 to enable a callback that displays all protocol messages.
4001 *) Change the shared library support so shared libraries are built as
4002 soon as the corresponding static library is finished, and thereby get
4003 openssl and the test programs linked against the shared library.
4004 This still only happens when the keyword "shard" has been given to
4005 the configuration scripts.
4007 NOTE: shared library support is still an experimental thing, and
4008 backward binary compatibility is still not guaranteed.
4009 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4011 *) Add support for Subject Information Access extension.
4012 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4014 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4015 additional bytes when new memory had to be allocated, not just
4016 when reusing an existing buffer.
4019 *) New command line and configuration option 'utf8' for the req command.
4020 This allows field values to be specified as UTF8 strings.
4023 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4024 runs for the former and machine-readable output for the latter.
4027 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4028 of the e-mail address in the DN (i.e., it will go into a certificate
4029 extension only). The new configuration file option 'email_in_dn = no'
4030 has the same effect.
4031 [Massimiliano Pala madwolf@openca.org]
4033 *) Change all functions with names starting with des_ to be starting
4034 with DES_ instead. Add wrappers that are compatible with libdes,
4035 but are named _ossl_old_des_*. Finally, add macros that map the
4036 des_* symbols to the corresponding _ossl_old_des_* if libdes
4037 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4038 desired, the des_* symbols will be mapped to DES_*, with one
4041 Since we provide two compatibility mappings, the user needs to
4042 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4043 compatibility is desired. The default (i.e., when that macro
4044 isn't defined) is OpenSSL 0.9.6c compatibility.
4046 There are also macros that enable and disable the support of old
4047 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4048 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4049 are defined, the default will apply: to support the old des routines.
4051 In either case, one must include openssl/des.h to get the correct
4052 definitions. Do not try to just include openssl/des_old.h, that
4055 NOTE: This is a major break of an old API into a new one. Software
4056 authors are encouraged to switch to the DES_ style functions. Some
4057 time in the future, des_old.h and the libdes compatibility functions
4058 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4059 default), and then completely removed.
4062 *) Test for certificates which contain unsupported critical extensions.
4063 If such a certificate is found during a verify operation it is
4064 rejected by default: this behaviour can be overridden by either
4065 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4066 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4067 X509_supported_extension() has also been added which returns 1 if a
4068 particular extension is supported.
4071 *) Modify the behaviour of EVP cipher functions in similar way to digests
4072 to retain compatibility with existing code.
4075 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4076 compatibility with existing code. In particular the 'ctx' parameter does
4077 not have to be to be initialized before the call to EVP_DigestInit() and
4078 it is tidied up after a call to EVP_DigestFinal(). New function
4079 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4080 EVP_MD_CTX_copy() changed to not require the destination to be
4081 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4082 requires the destination to be valid.
4084 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4085 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4088 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4089 so that complete 'Handshake' protocol structures are kept in memory
4090 instead of overwriting 'msg_type' and 'length' with 'body' data.
4093 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4094 [Massimo Santin via Richard Levitte]
4096 *) Major restructuring to the underlying ENGINE code. This includes
4097 reduction of linker bloat, separation of pure "ENGINE" manipulation
4098 (initialisation, etc) from functionality dealing with implementations
4099 of specific crypto iterfaces. This change also introduces integrated
4100 support for symmetric ciphers and digest implementations - so ENGINEs
4101 can now accelerate these by providing EVP_CIPHER and EVP_MD
4102 implementations of their own. This is detailed in crypto/engine/README
4103 as it couldn't be adequately described here. However, there are a few
4104 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4105 were changed in the original introduction of ENGINE code have now
4106 reverted back - the hooking from this code to ENGINE is now a good
4107 deal more passive and at run-time, operations deal directly with
4108 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4109 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4110 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4111 they were not being used by the framework as there is no concept of a
4112 BIGNUM_METHOD and they could not be generalised to the new
4113 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4114 ENGINE_cpy() has been removed as it cannot be consistently defined in
4118 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4121 *) Change mkdef.pl to sort symbols that get the same entry number,
4122 and make sure the automatically generated functions ERR_load_*
4123 become part of libeay.num as well.
4126 *) New function SSL_renegotiate_pending(). This returns true once
4127 renegotiation has been requested (either SSL_renegotiate() call
4128 or HelloRequest/ClientHello receveived from the peer) and becomes
4129 false once a handshake has been completed.
4130 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4131 sends a HelloRequest, but does not ensure that a handshake takes
4132 place. SSL_renegotiate_pending() is useful for checking if the
4133 client has followed the request.)
4136 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4137 By default, clients may request session resumption even during
4138 renegotiation (if session ID contexts permit); with this option,
4139 session resumption is possible only in the first handshake.
4141 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4142 more bits available for options that should not be part of
4143 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4146 *) Add some demos for certificate and certificate request creation.
4149 *) Make maximum certificate chain size accepted from the peer application
4150 settable (SSL*_get/set_max_cert_list()), as proposed by
4151 "Douglas E. Engert" <deengert@anl.gov>.
4154 *) Add support for shared libraries for Unixware-7
4155 (Boyd Lynn Gerber <gerberb@zenez.com>).
4158 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4159 be done prior to destruction. Use this to unload error strings from
4160 ENGINEs that load their own error strings. NB: This adds two new API
4161 functions to "get" and "set" this destroy handler in an ENGINE.
4164 *) Alter all existing ENGINE implementations (except "openssl" and
4165 "openbsd") to dynamically instantiate their own error strings. This
4166 makes them more flexible to be built both as statically-linked ENGINEs
4167 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4168 Also, add stub code to each that makes building them as self-contained
4169 shared-libraries easier (see README.ENGINE).
4172 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4173 implementations into applications that are completely implemented in
4174 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4175 commands that can be used to configure what shared-library to load and
4176 to control aspects of the way it is handled. Also, made an update to
4177 the README.ENGINE file that brings its information up-to-date and
4178 provides some information and instructions on the "dynamic" ENGINE
4179 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4182 *) Make it possible to unload ranges of ERR strings with a new
4183 "ERR_unload_strings" function.
4186 *) Add a copy() function to EVP_MD.
4189 *) Make EVP_MD routines take a context pointer instead of just the
4190 md_data void pointer.
4193 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4194 that the digest can only process a single chunk of data
4195 (typically because it is provided by a piece of
4196 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4197 is only going to provide a single chunk of data, and hence the
4198 framework needn't accumulate the data for oneshot drivers.
4201 *) As with "ERR", make it possible to replace the underlying "ex_data"
4202 functions. This change also alters the storage and management of global
4203 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4204 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4205 index counters. The API functions that use this state have been changed
4206 to take a "class_index" rather than pointers to the class's local STACK
4207 and counter, and there is now an API function to dynamically create new
4208 classes. This centralisation allows us to (a) plug a lot of the
4209 thread-safety problems that existed, and (b) makes it possible to clean
4210 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4211 such data would previously have always leaked in application code and
4212 workarounds were in place to make the memory debugging turn a blind eye
4213 to it. Application code that doesn't use this new function will still
4214 leak as before, but their memory debugging output will announce it now
4215 rather than letting it slide.
4217 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4218 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4219 has a return value to indicate success or failure.
4222 *) Make it possible to replace the underlying "ERR" functions such that the
4223 global state (2 LHASH tables and 2 locks) is only used by the "default"
4224 implementation. This change also adds two functions to "get" and "set"
4225 the implementation prior to it being automatically set the first time
4226 any other ERR function takes place. Ie. an application can call "get",
4227 pass the return value to a module it has just loaded, and that module
4228 can call its own "set" function using that value. This means the
4229 module's "ERR" operations will use (and modify) the error state in the
4230 application and not in its own statically linked copy of OpenSSL code.
4233 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4234 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4235 the operation, and provides a more encapsulated way for external code
4236 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4237 to use these functions rather than manually incrementing the counts.
4239 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4242 *) Add EVP test program.
4245 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4248 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4249 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4250 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4251 These allow a CRL to be built without having to access X509_CRL fields
4252 directly. Modify 'ca' application to use new functions.
4255 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4256 bug workarounds. Rollback attack detection is a security feature.
4257 The problem will only arise on OpenSSL servers when TLSv1 is not
4258 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4259 Software authors not wanting to support TLSv1 will have special reasons
4260 for their choice and can explicitly enable this option.
4261 [Bodo Moeller, Lutz Jaenicke]
4263 *) Rationalise EVP so it can be extended: don't include a union of
4264 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4265 (similar to those existing for EVP_CIPHER_CTX).
4270 EVP_MD_CTX_init(&md); /* new function call */
4271 EVP_DigestInit(&md, EVP_sha1());
4272 EVP_DigestUpdate(&md, in, len);
4273 EVP_DigestFinal(&md, out, NULL);
4274 EVP_MD_CTX_cleanup(&md); /* new function call */
4278 *) Make DES key schedule conform to the usual scheme, as well as
4279 correcting its structure. This means that calls to DES functions
4280 now have to pass a pointer to a des_key_schedule instead of a
4281 plain des_key_schedule (which was actually always a pointer
4284 des_key_schedule ks;
4286 des_set_key_checked(..., &ks);
4287 des_ncbc_encrypt(..., &ks, ...);
4289 (Note that a later change renames 'des_...' into 'DES_...'.)
4292 *) Initial reduction of linker bloat: the use of some functions, such as
4293 PEM causes large amounts of unused functions to be linked in due to
4294 poor organisation. For example pem_all.c contains every PEM function
4295 which has a knock on effect of linking in large amounts of (unused)
4296 ASN1 code. Grouping together similar functions and splitting unrelated
4297 functions prevents this.
4300 *) Cleanup of EVP macros.
4303 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4304 correct _ecb suffix.
4307 *) Add initial OCSP responder support to ocsp application. The
4308 revocation information is handled using the text based index
4309 use by the ca application. The responder can either handle
4310 requests generated internally, supplied in files (for example
4311 via a CGI script) or using an internal minimal server.
4314 *) Add configuration choices to get zlib compression for TLS.
4317 *) Changes to Kerberos SSL for RFC 2712 compliance:
4318 1. Implemented real KerberosWrapper, instead of just using
4319 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4320 2. Implemented optional authenticator field of KerberosWrapper.
4322 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4323 and authenticator structs; see crypto/krb5/.
4325 Generalized Kerberos calls to support multiple Kerberos libraries.
4326 [Vern Staats <staatsvr@asc.hpc.mil>,
4327 Jeffrey Altman <jaltman@columbia.edu>
4328 via Richard Levitte]
4330 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4331 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4332 values for each of the key sizes rather than having just
4333 parameters (and 'speed' generating keys each time).
4336 *) Speed up EVP routines.
4339 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4340 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4341 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4342 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4344 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4345 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4346 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4349 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4351 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4354 *) Added the OS2-EMX target.
4355 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4357 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4358 to support NCONF routines in extension code. New function CONF_set_nconf()
4359 to allow functions which take an NCONF to also handle the old LHASH
4360 structure: this means that the old CONF compatible routines can be
4361 retained (in particular wrt extensions) without having to duplicate the
4362 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4365 *) Enhance the general user interface with mechanisms for inner control
4366 and with possibilities to have yes/no kind of prompts.
4369 *) Change all calls to low level digest routines in the library and
4370 applications to use EVP. Add missing calls to HMAC_cleanup() and
4371 don't assume HMAC_CTX can be copied using memcpy().
4372 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4374 *) Add the possibility to control engines through control names but with
4375 arbitrary arguments instead of just a string.
4376 Change the key loaders to take a UI_METHOD instead of a callback
4377 function pointer. NOTE: this breaks binary compatibility with earlier
4378 versions of OpenSSL [engine].
4379 Adapt the nCipher code for these new conditions and add a card insertion
4383 *) Enhance the general user interface with mechanisms to better support
4384 dialog box interfaces, application-defined prompts, the possibility
4385 to use defaults (for example default passwords from somewhere else)
4386 and interrupts/cancellations.
4389 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4390 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4393 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4394 tidy up some unnecessarily weird code in 'sk_new()').
4395 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4397 *) Change the key loading routines for ENGINEs to use the same kind
4398 callback (pem_password_cb) as all other routines that need this
4402 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4403 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4404 than this minimum value is recommended.
4407 *) New random seeder for OpenVMS, using the system process statistics
4408 that are easily reachable.
4411 *) Windows apparently can't transparently handle global
4412 variables defined in DLLs. Initialisations such as:
4414 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4416 wont compile. This is used by the any applications that need to
4417 declare their own ASN1 modules. This was fixed by adding the option
4418 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4419 needed for static libraries under Win32.
4422 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4423 setting of purpose and trust fields. New X509_STORE trust and
4424 purpose functions and tidy up setting in other SSL functions.
4427 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4428 structure. These are inherited by X509_STORE_CTX when it is
4429 initialised. This allows various defaults to be set in the
4430 X509_STORE structure (such as flags for CRL checking and custom
4431 purpose or trust settings) for functions which only use X509_STORE_CTX
4432 internally such as S/MIME.
4434 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4435 trust settings if they are not set in X509_STORE. This allows X509_STORE
4436 purposes and trust (in S/MIME for example) to override any set by default.
4438 Add command line options for CRL checking to smime, s_client and s_server
4442 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4443 are set then the CRL is looked up in the X509_STORE structure and
4444 its validity and signature checked, then if the certificate is found
4445 in the CRL the verify fails with a revoked error.
4447 Various new CRL related callbacks added to X509_STORE_CTX structure.
4449 Command line options added to 'verify' application to support this.
4451 This needs some additional work, such as being able to handle multiple
4452 CRLs with different times, extension based lookup (rather than just
4453 by subject name) and ultimately more complete V2 CRL extension
4457 *) Add a general user interface API (crypto/ui/). This is designed
4458 to replace things like des_read_password and friends (backward
4459 compatibility functions using this new API are provided).
4460 The purpose is to remove prompting functions from the DES code
4461 section as well as provide for prompting through dialog boxes in
4462 a window system and the like.
4465 *) Add "ex_data" support to ENGINE so implementations can add state at a
4466 per-structure level rather than having to store it globally.
4469 *) Make it possible for ENGINE structures to be copied when retrieved by
4470 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4471 This causes the "original" ENGINE structure to act like a template,
4472 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4473 operational state can be localised to each ENGINE structure, despite the
4474 fact they all share the same "methods". New ENGINE structures returned in
4475 this case have no functional references and the return value is the single
4476 structural reference. This matches the single structural reference returned
4477 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4481 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4482 needs to match any other type at all we need to manually clear the
4486 *) Changes to the "openssl engine" utility to include;
4487 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4488 about an ENGINE's available control commands.
4489 - executing control commands from command line arguments using the
4490 '-pre' and '-post' switches. '-post' is only used if '-t' is
4491 specified and the ENGINE is successfully initialised. The syntax for
4492 the individual commands are colon-separated, for example;
4493 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4496 *) New dynamic control command support for ENGINEs. ENGINEs can now
4497 declare their own commands (numbers), names (strings), descriptions,
4498 and input types for run-time discovery by calling applications. A
4499 subset of these commands are implicitly classed as "executable"
4500 depending on their input type, and only these can be invoked through
4501 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4502 can be based on user input, config files, etc). The distinction is
4503 that "executable" commands cannot return anything other than a boolean
4504 result and can only support numeric or string input, whereas some
4505 discoverable commands may only be for direct use through
4506 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4507 pointers, or other custom uses. The "executable" commands are to
4508 support parameterisations of ENGINE behaviour that can be
4509 unambiguously defined by ENGINEs and used consistently across any
4510 OpenSSL-based application. Commands have been added to all the
4511 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4512 control over shared-library paths without source code alterations.
4515 *) Changed all ENGINE implementations to dynamically allocate their
4516 ENGINEs rather than declaring them statically. Apart from this being
4517 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4518 this also allows the implementations to compile without using the
4519 internal engine_int.h header.
4522 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4523 'const' value. Any code that should be able to modify a RAND_METHOD
4524 should already have non-const pointers to it (ie. they should only
4525 modify their own ones).
4528 *) Made a variety of little tweaks to the ENGINE code.
4529 - "atalla" and "ubsec" string definitions were moved from header files
4530 to C code. "nuron" string definitions were placed in variables
4531 rather than hard-coded - allowing parameterisation of these values
4532 later on via ctrl() commands.
4533 - Removed unused "#if 0"'d code.
4534 - Fixed engine list iteration code so it uses ENGINE_free() to release
4535 structural references.
4536 - Constified the RAND_METHOD element of ENGINE structures.
4537 - Constified various get/set functions as appropriate and added
4538 missing functions (including a catch-all ENGINE_cpy that duplicates
4539 all ENGINE values onto a new ENGINE except reference counts/state).
4540 - Removed NULL parameter checks in get/set functions. Setting a method
4541 or function to NULL is a way of cancelling out a previously set
4542 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4543 and doesn't justify the extra error symbols and code.
4544 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4545 flags from engine_int.h to engine.h.
4546 - Changed prototypes for ENGINE handler functions (init(), finish(),
4547 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4550 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4551 to the algorithm using long division. The binary algorithm can be
4552 used only if the modulus is odd. On 32-bit systems, it is faster
4553 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4554 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4555 up to 450 bits. In 64-bit environments, the binary algorithm
4556 appears to be advantageous for much longer moduli; here we use it
4557 for moduli up to 2048 bits.
4560 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4561 could not support the combine flag in choice fields.
4564 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4565 extensions from a certificate request to the certificate.
4568 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4569 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4570 file: this allows the display of the certificate about to be
4571 signed to be customised, to allow certain fields to be included
4572 or excluded and extension details. The old system didn't display
4573 multicharacter strings properly, omitted fields not in the policy
4574 and couldn't display additional details such as extensions.
4577 *) Function EC_POINTs_mul for multiple scalar multiplication
4578 of an arbitrary number of elliptic curve points
4579 \sum scalars[i]*points[i],
4580 optionally including the generator defined for the EC_GROUP:
4581 scalar*generator + \sum scalars[i]*points[i].
4583 EC_POINT_mul is a simple wrapper function for the typical case
4584 that the point list has just one item (besides the optional
4588 *) First EC_METHODs for curves over GF(p):
4590 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4591 operations and provides various method functions that can also
4592 operate with faster implementations of modular arithmetic.
4594 EC_GFp_mont_method() reuses most functions that are part of
4595 EC_GFp_simple_method, but uses Montgomery arithmetic.
4597 [Bodo Moeller; point addition and point doubling
4598 implementation directly derived from source code provided by
4599 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4601 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4602 crypto/ec/ec_lib.c):
4604 Curves are EC_GROUP objects (with an optional group generator)
4605 based on EC_METHODs that are built into the library.
4607 Points are EC_POINT objects based on EC_GROUP objects.
4609 Most of the framework would be able to handle curves over arbitrary
4610 finite fields, but as there are no obvious types for fields other
4611 than GF(p), some functions are limited to that for now.
4614 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4615 that the file contains a complete HTTP response.
4618 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4619 change the def and num file printf format specifier from "%-40sXXX"
4620 to "%-39s XXX". The latter will always guarantee a space after the
4621 field while the former will cause them to run together if the field
4622 is 40 of more characters long.
4625 *) Constify the cipher and digest 'method' functions and structures
4626 and modify related functions to take constant EVP_MD and EVP_CIPHER
4630 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4631 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4634 *) Modify EVP_Digest*() routines so they now return values. Although the
4635 internal software routines can never fail additional hardware versions
4639 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4641 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4642 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4645 ERR_R_NESTED_ASN1_ERROR
4647 ERR_R_MISSING_ASN1_EOS
4648 were 4 .. 9, conflicting with
4649 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4651 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4652 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4654 Add new error code 'ERR_R_INTERNAL_ERROR'.
4657 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4661 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4662 sets the subject name for a new request or supersedes the
4663 subject name in a given request. Formats that can be parsed are
4664 'CN=Some Name, OU=myOU, C=IT'
4666 'CN=Some Name/OU=myOU/C=IT'.
4668 Add options '-batch' and '-verbose' to 'openssl req'.
4669 [Massimiliano Pala <madwolf@hackmasters.net>]
4671 *) Introduce the possibility to access global variables through
4672 functions on platform were that's the best way to handle exporting
4673 global variables in shared libraries. To enable this functionality,
4674 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4675 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4676 is normally done by Configure or something similar).
4678 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4679 in the source file (foo.c) like this:
4681 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4682 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4684 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4685 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4687 OPENSSL_DECLARE_GLOBAL(int,foo);
4688 #define foo OPENSSL_GLOBAL_REF(foo)
4689 OPENSSL_DECLARE_GLOBAL(double,bar);
4690 #define bar OPENSSL_GLOBAL_REF(bar)
4692 The #defines are very important, and therefore so is including the
4693 header file everywhere where the defined globals are used.
4695 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4696 of ASN.1 items, but that structure is a bit different.
4698 The largest change is in util/mkdef.pl which has been enhanced with
4699 better and easier to understand logic to choose which symbols should
4700 go into the Windows .def files as well as a number of fixes and code
4701 cleanup (among others, algorithm keywords are now sorted
4702 lexicographically to avoid constant rewrites).
4705 *) In BN_div() keep a copy of the sign of 'num' before writing the
4706 result to 'rm' because if rm==num the value will be overwritten
4707 and produce the wrong result if 'num' is negative: this caused
4708 problems with BN_mod() and BN_nnmod().
4711 *) Function OCSP_request_verify(). This checks the signature on an
4712 OCSP request and verifies the signer certificate. The signer
4713 certificate is just checked for a generic purpose and OCSP request
4717 *) Add OCSP_check_validity() function to check the validity of OCSP
4718 responses. OCSP responses are prepared in real time and may only
4719 be a few seconds old. Simply checking that the current time lies
4720 between thisUpdate and nextUpdate max reject otherwise valid responses
4721 caused by either OCSP responder or client clock inaccuracy. Instead
4722 we allow thisUpdate and nextUpdate to fall within a certain period of
4723 the current time. The age of the response can also optionally be
4724 checked. Two new options -validity_period and -status_age added to
4728 *) If signature or public key algorithm is unrecognized print out its
4729 OID rather that just UNKNOWN.
4732 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4733 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4734 ID to be generated from the issuer certificate alone which can then be
4735 passed to OCSP_id_issuer_cmp().
4738 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4739 ASN1 modules to export functions returning ASN1_ITEM pointers
4740 instead of the ASN1_ITEM structures themselves. This adds several
4741 new macros which allow the underlying ASN1 function/structure to
4742 be accessed transparently. As a result code should not use ASN1_ITEM
4743 references directly (such as &X509_it) but instead use the relevant
4744 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4745 use of the new ASN1 code on platforms where exporting structures
4746 is problematical (for example in shared libraries) but exporting
4747 functions returning pointers to structures is not.
4750 *) Add support for overriding the generation of SSL/TLS session IDs.
4751 These callbacks can be registered either in an SSL_CTX or per SSL.
4752 The purpose of this is to allow applications to control, if they wish,
4753 the arbitrary values chosen for use as session IDs, particularly as it
4754 can be useful for session caching in multiple-server environments. A
4755 command-line switch for testing this (and any client code that wishes
4756 to use such a feature) has been added to "s_server".
4757 [Geoff Thorpe, Lutz Jaenicke]
4759 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4760 of the form '#if defined(...) || defined(...) || ...' and
4761 '#if !defined(...) && !defined(...) && ...'. This also avoids
4762 the growing number of special cases it was previously handling.
4765 *) Make all configuration macros available for application by making
4766 sure they are available in opensslconf.h, by giving them names starting
4767 with "OPENSSL_" to avoid conflicts with other packages and by making
4768 sure e_os2.h will cover all platform-specific cases together with
4770 Additionally, it is now possible to define configuration/platform-
4771 specific names (called "system identities"). In the C code, these
4772 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4773 macro with the name beginning with "OPENSSL_SYS_", which is determined
4774 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4778 *) New option -set_serial to 'req' and 'x509' this allows the serial
4779 number to use to be specified on the command line. Previously self
4780 signed certificates were hard coded with serial number 0 and the
4781 CA options of 'x509' had to use a serial number in a file which was
4785 *) New options to 'ca' utility to support V2 CRL entry extensions.
4786 Currently CRL reason, invalidity date and hold instruction are
4787 supported. Add new CRL extensions to V3 code and some new objects.
4790 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4791 disable standard block padding (aka PKCS#5 padding) in the EVP
4792 API, which was previously mandatory. This means that the data is
4793 not padded in any way and so the total length much be a multiple
4794 of the block size, otherwise an error occurs.
4797 *) Initial (incomplete) OCSP SSL support.
4800 *) New function OCSP_parse_url(). This splits up a URL into its host,
4801 port and path components: primarily to parse OCSP URLs. New -url
4802 option to ocsp utility.
4805 *) New nonce behavior. The return value of OCSP_check_nonce() now
4806 reflects the various checks performed. Applications can decide
4807 whether to tolerate certain situations such as an absent nonce
4808 in a response when one was present in a request: the ocsp application
4809 just prints out a warning. New function OCSP_add1_basic_nonce()
4810 this is to allow responders to include a nonce in a response even if
4811 the request is nonce-less.
4814 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4815 skipped when using openssl x509 multiple times on a single input file,
4816 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4819 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4820 set string type: to handle setting ASN1_TIME structures. Fix ca
4821 utility to correctly initialize revocation date of CRLs.
4824 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4825 the clients preferred ciphersuites and rather use its own preferences.
4826 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4827 Internet Explorer by ensuring unchanged hash method during stepup.
4828 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4831 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4832 to aes and add a new 'exist' option to print out symbols that don't
4836 *) Additional options to ocsp utility to allow flags to be set and
4837 additional certificates supplied.
4840 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4841 OCSP client a number of certificate to only verify the response
4845 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4846 handle the new API. Currently only ECB, CBC modes supported. Add new
4849 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4850 Encryption Standard (AES) Ciphersuites for Transport Layer
4851 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4852 not enabled by default and were not part of the "ALL" ciphersuite
4853 alias because they were not yet official; they could be
4854 explicitly requested by specifying the "AESdraft" ciphersuite
4855 group alias. In the final release of OpenSSL 0.9.7, the group
4856 alias is called "AES" and is part of "ALL".)
4857 [Ben Laurie, Steve Henson, Bodo Moeller]
4859 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4860 request to response.
4863 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4864 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4865 extract information from a certificate request. OCSP_response_create()
4866 creates a response and optionally adds a basic response structure.
4867 OCSP_basic_add1_status() adds a complete single response to a basic
4868 response and returns the OCSP_SINGLERESP structure just added (to allow
4869 extensions to be included for example). OCSP_basic_add1_cert() adds a
4870 certificate to a basic response and OCSP_basic_sign() signs a basic
4871 response with various flags. New helper functions ASN1_TIME_check()
4872 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4873 (converts ASN1_TIME to GeneralizedTime).
4876 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4877 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4878 structure from a certificate. X509_pubkey_digest() digests the public_key
4879 contents: this is used in various key identifiers.
4882 *) Make sk_sort() tolerate a NULL argument.
4883 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4885 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4886 passed by the function are trusted implicitly. If any of them signed the
4887 response then it is assumed to be valid and is not verified.
4890 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4891 to data. This was previously part of the PKCS7 ASN1 code. This
4892 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4893 [Steve Henson, reported by Kenneth R. Robinette
4894 <support@securenetterm.com>]
4896 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4897 routines: without these tracing memory leaks is very painful.
4898 Fix leaks in PKCS12 and PKCS7 routines.
4901 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4902 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4903 effectively meant GeneralizedTime would never be used. Now it
4904 is initialised to -1 but X509_time_adj() now has to check the value
4905 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4906 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4907 [Steve Henson, reported by Kenneth R. Robinette
4908 <support@securenetterm.com>]
4910 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4911 result in a zero length in the ASN1_INTEGER structure which was
4912 not consistent with the structure when d2i_ASN1_INTEGER() was used
4913 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4914 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4915 where it did not print out a minus for negative ASN1_INTEGER.
4918 *) Add summary printout to ocsp utility. The various functions which
4919 convert status values to strings have been renamed to:
4920 OCSP_response_status_str(), OCSP_cert_status_str() and
4921 OCSP_crl_reason_str() and are no longer static. New options
4922 to verify nonce values and to disable verification. OCSP response
4923 printout format cleaned up.
4926 *) Add additional OCSP certificate checks. These are those specified
4927 in RFC2560. This consists of two separate checks: the CA of the
4928 certificate being checked must either be the OCSP signer certificate
4929 or the issuer of the OCSP signer certificate. In the latter case the
4930 OCSP signer certificate must contain the OCSP signing extended key
4931 usage. This check is performed by attempting to match the OCSP
4932 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4933 in the OCSP_CERTID structures of the response.
4936 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4937 and related routines. This uses the standard OpenSSL certificate
4938 verify routines to perform initial checks (just CA validity) and
4939 to obtain the certificate chain. Then additional checks will be
4940 performed on the chain. Currently the root CA is checked to see
4941 if it is explicitly trusted for OCSP signing. This is used to set
4942 a root CA as a global signing root: that is any certificate that
4943 chains to that CA is an acceptable OCSP signing certificate.
4946 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4947 extensions from a separate configuration file.
4948 As when reading extensions from the main configuration file,
4949 the '-extensions ...' option may be used for specifying the
4951 [Massimiliano Pala <madwolf@comune.modena.it>]
4953 *) New OCSP utility. Allows OCSP requests to be generated or
4954 read. The request can be sent to a responder and the output
4955 parsed, outputed or printed in text form. Not complete yet:
4956 still needs to check the OCSP response validity.
4959 *) New subcommands for 'openssl ca':
4960 'openssl ca -status <serial>' prints the status of the cert with
4961 the given serial number (according to the index file).
4962 'openssl ca -updatedb' updates the expiry status of certificates
4964 [Massimiliano Pala <madwolf@comune.modena.it>]
4966 *) New '-newreq-nodes' command option to CA.pl. This is like
4967 '-newreq', but calls 'openssl req' with the '-nodes' option
4968 so that the resulting key is not encrypted.
4969 [Damien Miller <djm@mindrot.org>]
4971 *) New configuration for the GNU Hurd.
4972 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4974 *) Initial code to implement OCSP basic response verify. This
4975 is currently incomplete. Currently just finds the signer's
4976 certificate and verifies the signature on the response.
4979 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4980 value of OPENSSLDIR. This is available via the new '-d' option
4981 to 'openssl version', and is also included in 'openssl version -a'.
4984 *) Allowing defining memory allocation callbacks that will be given
4985 file name and line number information in additional arguments
4986 (a const char* and an int). The basic functionality remains, as
4987 well as the original possibility to just replace malloc(),
4988 realloc() and free() by functions that do not know about these
4989 additional arguments. To register and find out the current
4990 settings for extended allocation functions, the following
4991 functions are provided:
4993 CRYPTO_set_mem_ex_functions
4994 CRYPTO_set_locked_mem_ex_functions
4995 CRYPTO_get_mem_ex_functions
4996 CRYPTO_get_locked_mem_ex_functions
4998 These work the same way as CRYPTO_set_mem_functions and friends.
4999 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5000 extended allocation function is enabled.
5001 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5002 a conventional allocation function is enabled.
5003 [Richard Levitte, Bodo Moeller]
5005 *) Finish off removing the remaining LHASH function pointer casts.
5006 There should no longer be any prototype-casting required when using
5007 the LHASH abstraction, and any casts that remain are "bugs". See
5008 the callback types and macros at the head of lhash.h for details
5009 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5012 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5013 If /dev/[u]random devices are not available or do not return enough
5014 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5016 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5017 /etc/entropy will be queried once each in this sequence, quering stops
5018 when enough entropy was collected without querying more sockets.
5021 *) Change the Unix RAND_poll() variant to be able to poll several
5022 random devices, as specified by DEVRANDOM, until a sufficient amount
5023 of data has been collected. We spend at most 10 ms on each file
5024 (select timeout) and read in non-blocking mode. DEVRANDOM now
5025 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5026 (previously it was just the string "/dev/urandom"), so on typical
5027 platforms the 10 ms delay will never occur.
5028 Also separate out the Unix variant to its own file, rand_unix.c.
5029 For VMS, there's a currently-empty rand_vms.c.
5032 *) Move OCSP client related routines to ocsp_cl.c. These
5033 provide utility functions which an application needing
5034 to issue a request to an OCSP responder and analyse the
5035 response will typically need: as opposed to those which an
5036 OCSP responder itself would need which will be added later.
5038 OCSP_request_sign() signs an OCSP request with an API similar
5039 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5040 response. OCSP_response_get1_basic() extracts basic response
5041 from response. OCSP_resp_find_status(): finds and extracts status
5042 information from an OCSP_CERTID structure (which will be created
5043 when the request structure is built). These are built from lower
5044 level functions which work on OCSP_SINGLERESP structures but
5045 wont normally be used unless the application wishes to examine
5046 extensions in the OCSP response for example.
5048 Replace nonce routines with a pair of functions.
5049 OCSP_request_add1_nonce() adds a nonce value and optionally
5050 generates a random value. OCSP_check_nonce() checks the
5051 validity of the nonce in an OCSP response.
5054 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5055 This doesn't copy the supplied OCSP_CERTID and avoids the
5056 need to free up the newly created id. Change return type
5057 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5058 This can then be used to add extensions to the request.
5059 Deleted OCSP_request_new(), since most of its functionality
5060 is now in OCSP_REQUEST_new() (and the case insensitive name
5061 clash) apart from the ability to set the request name which
5062 will be added elsewhere.
5065 *) Update OCSP API. Remove obsolete extensions argument from
5066 various functions. Extensions are now handled using the new
5067 OCSP extension code. New simple OCSP HTTP function which
5068 can be used to send requests and parse the response.
5071 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5072 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5073 uses the special reorder version of SET OF to sort the attributes
5074 and reorder them to match the encoded order. This resolves a long
5075 standing problem: a verify on a PKCS7 structure just after signing
5076 it used to fail because the attribute order did not match the
5077 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5078 it uses the received order. This is necessary to tolerate some broken
5079 software that does not order SET OF. This is handled by encoding
5080 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5081 to produce the required SET OF.
5084 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5085 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5086 files to get correct declarations of the ASN.1 item variables.
5089 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5090 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5091 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5092 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5093 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5094 ASN1_ITEM and no wrapper functions.
5097 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5098 replace the old function pointer based I/O routines. Change most of
5099 the *_d2i_bio() and *_d2i_fp() functions to use these.
5102 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5103 lines, recognice more "algorithms" that can be deselected, and make
5104 it complain about algorithm deselection that isn't recognised.
5107 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5108 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5109 to use new functions. Add NO_ASN1_OLD which can be set to remove
5110 some old style ASN1 functions: this can be used to determine if old
5111 code will still work when these eventually go away.
5114 *) New extension functions for OCSP structures, these follow the
5115 same conventions as certificates and CRLs.
5118 *) New function X509V3_add1_i2d(). This automatically encodes and
5119 adds an extension. Its behaviour can be customised with various
5120 flags to append, replace or delete. Various wrappers added for
5121 certifcates and CRLs.
5124 *) Fix to avoid calling the underlying ASN1 print routine when
5125 an extension cannot be parsed. Correct a typo in the
5126 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5129 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5130 entries for variables.
5133 *) Add functionality to apps/openssl.c for detecting locking
5134 problems: As the program is single-threaded, all we have
5135 to do is register a locking callback using an array for
5136 storing which locks are currently held by the program.
5139 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5140 SSL_get_ex_data_X509_STORE_idx(), which is used in
5141 ssl_verify_cert_chain() and thus can be called at any time
5142 during TLS/SSL handshakes so that thread-safety is essential.
5143 Unfortunately, the ex_data design is not at all suited
5144 for multi-threaded use, so it probably should be abolished.
5147 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5148 [Broadcom, tweaked and integrated by Geoff Thorpe]
5150 *) Move common extension printing code to new function
5151 X509V3_print_extensions(). Reorganise OCSP print routines and
5152 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5155 *) New function X509_signature_print() to remove duplication in some
5159 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5160 set (this was treated exactly the same as SET OF previously). This
5161 is used to reorder the STACK representing the structure to match the
5162 encoding. This will be used to get round a problem where a PKCS7
5163 structure which was signed could not be verified because the STACK
5164 order did not reflect the encoded order.
5167 *) Reimplement the OCSP ASN1 module using the new code.
5170 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5171 for its ASN1 operations. The old style function pointers still exist
5172 for now but they will eventually go away.
5175 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5176 completely replaces the old ASN1 functionality with a table driven
5177 encoder and decoder which interprets an ASN1_ITEM structure describing
5178 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5179 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5180 has also been converted to the new form.
5183 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5184 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5185 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5186 for negative moduli.
5189 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5190 of not touching the result's sign bit.
5193 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5197 *) Changed the LHASH code to use prototypes for callbacks, and created
5198 macros to declare and implement thin (optionally static) functions
5199 that provide type-safety and avoid function pointer casting for the
5200 type-specific callbacks.
5203 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5205 [Veers Staats <staatsvr@asc.hpc.mil>,
5206 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5208 *) Reformat the FAQ so the different questions and answers can be divided
5209 in sections depending on the subject.
5212 *) Have the zlib compression code load ZLIB.DLL dynamically under
5216 *) New function BN_mod_sqrt for computing square roots modulo a prime
5217 (using the probabilistic Tonelli-Shanks algorithm unless
5218 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5219 be handled deterministically).
5220 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5222 *) Make BN_mod_inverse faster by explicitly handling small quotients
5223 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5224 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5227 *) New function BN_kronecker.
5230 *) Fix BN_gcd so that it works on negative inputs; the result is
5231 positive unless both parameters are zero.
5232 Previously something reasonably close to an infinite loop was
5233 possible because numbers could be growing instead of shrinking
5234 in the implementation of Euclid's algorithm.
5237 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5238 sign of the number in question.
5240 Fix BN_is_word(a,w) to work correctly for w == 0.
5242 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5243 because its test if the absolute value of 'a' equals 'w'.
5244 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5245 it exists mostly for use in the implementations of BN_is_zero(),
5246 BN_is_one(), and BN_is_word().
5249 *) New function BN_swap.
5252 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5253 the exponentiation functions are more likely to produce reasonable
5254 results on negative inputs.
5257 *) Change BN_mod_mul so that the result is always non-negative.
5258 Previously, it could be negative if one of the factors was negative;
5259 I don't think anyone really wanted that behaviour.
5262 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5263 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5264 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5265 and add new functions:
5274 BN_mod_lshift1_quick
5278 These functions always generate non-negative results.
5280 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5281 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5283 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5284 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5285 be reduced modulo m.
5286 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5289 The following entry accidentily appeared in the CHANGES file
5290 distributed with OpenSSL 0.9.7. The modifications described in
5291 it do *not* apply to OpenSSL 0.9.7.
5293 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5294 was actually never needed) and in BN_mul(). The removal in BN_mul()
5295 required a small change in bn_mul_part_recursive() and the addition
5296 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5297 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5298 bn_sub_words() and bn_add_words() except they take arrays with
5303 *) In 'openssl passwd', verify passwords read from the terminal
5304 unless the '-salt' option is used (which usually means that
5305 verification would just waste user's time since the resulting
5306 hash is going to be compared with some given password hash)
5307 or the new '-noverify' option is used.
5309 This is an incompatible change, but it does not affect
5310 non-interactive use of 'openssl passwd' (passwords on the command
5311 line, '-stdin' option, '-in ...' option) and thus should not
5315 *) Remove all references to RSAref, since there's no more need for it.
5318 *) Make DSO load along a path given through an environment variable
5319 (SHLIB_PATH) with shl_load().
5322 *) Constify the ENGINE code as a result of BIGNUM constification.
5323 Also constify the RSA code and most things related to it. In a
5324 few places, most notable in the depth of the ASN.1 code, ugly
5325 casts back to non-const were required (to be solved at a later
5329 *) Make it so the openssl application has all engines loaded by default.
5332 *) Constify the BIGNUM routines a little more.
5335 *) Add the following functions:
5337 ENGINE_load_cswift()
5339 ENGINE_load_atalla()
5341 ENGINE_load_builtin_engines()
5343 That way, an application can itself choose if external engines that
5344 are built-in in OpenSSL shall ever be used or not. The benefit is
5345 that applications won't have to be linked with libdl or other dso
5346 libraries unless it's really needed.
5348 Changed 'openssl engine' to load all engines on demand.
5349 Changed the engine header files to avoid the duplication of some
5350 declarations (they differed!).
5353 *) 'openssl engine' can now list capabilities.
5356 *) Better error reporting in 'openssl engine'.
5359 *) Never call load_dh_param(NULL) in s_server.
5362 *) Add engine application. It can currently list engines by name and
5363 identity, and test if they are actually available.
5366 *) Improve RPM specification file by forcing symbolic linking and making
5367 sure the installed documentation is also owned by root.root.
5368 [Damien Miller <djm@mindrot.org>]
5370 *) Give the OpenSSL applications more possibilities to make use of
5371 keys (public as well as private) handled by engines.
5374 *) Add OCSP code that comes from CertCo.
5377 *) Add VMS support for the Rijndael code.
5380 *) Added untested support for Nuron crypto accelerator.
5383 *) Add support for external cryptographic devices. This code was
5384 previously distributed separately as the "engine" branch.
5385 [Geoff Thorpe, Richard Levitte]
5387 *) Rework the filename-translation in the DSO code. It is now possible to
5388 have far greater control over how a "name" is turned into a filename
5389 depending on the operating environment and any oddities about the
5390 different shared library filenames on each system.
5393 *) Support threads on FreeBSD-elf in Configure.
5396 *) Fix for SHA1 assembly problem with MASM: it produces
5397 warnings about corrupt line number information when assembling
5398 with debugging information. This is caused by the overlapping
5400 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5403 NCONF_get_number() has no error checking at all. As a replacement,
5404 NCONF_get_number_e() is defined (_e for "error checking") and is
5405 promoted strongly. The old NCONF_get_number is kept around for
5406 binary backward compatibility.
5407 Make it possible for methods to load from something other than a BIO,
5408 by providing a function pointer that is given a name instead of a BIO.
5409 For example, this could be used to load configuration data from an
5413 *) Fix for non blocking accept BIOs. Added new I/O special reason
5414 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5415 with non blocking I/O was not possible because no retry code was
5416 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5420 *) Added the beginnings of Rijndael support.
5423 *) Fix for bug in DirectoryString mask setting. Add support for
5424 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5425 to allow certificate printing to more controllable, additional
5426 'certopt' option to 'x509' to allow new printing options to be
5430 *) Clean old EAY MD5 hack from e_os.h.
5433 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5435 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5436 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5437 [Joe Orton, Steve Henson]
5439 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5441 *) Fix additional bug revealed by the NISCC test suite:
5443 Stop bug triggering large recursion when presented with
5444 certain ASN.1 tags (CVE-2003-0851)
5447 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5449 *) Fix various bugs revealed by running the NISCC test suite:
5451 Stop out of bounds reads in the ASN1 code when presented with
5452 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5454 If verify callback ignores invalid public key errors don't try to check
5455 certificate signature with the NULL public key.
5459 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5460 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5464 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5465 extra data after the compression methods not only for TLS 1.0
5466 but also for SSL 3.0 (as required by the specification).
5467 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5469 *) Change X509_certificate_type() to mark the key as exported/exportable
5470 when it's 512 *bits* long, not 512 bytes.
5473 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5475 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5476 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5477 a protocol version number mismatch like a decryption error
5478 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5481 *) Turn on RSA blinding by default in the default implementation
5482 to avoid a timing attack. Applications that don't want it can call
5483 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5484 They would be ill-advised to do so in most cases.
5485 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5487 *) Change RSA blinding code so that it works when the PRNG is not
5488 seeded (in this case, the secret RSA exponent is abused as
5489 an unpredictable seed -- if it is not unpredictable, there
5490 is no point in blinding anyway). Make RSA blinding thread-safe
5491 by remembering the creator's thread ID in rsa->blinding and
5492 having all other threads use local one-time blinding factors
5493 (this requires more computation than sharing rsa->blinding, but
5494 avoids excessive locking; and if an RSA object is not shared
5495 between threads, blinding will still be very fast).
5498 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5500 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5501 via timing by performing a MAC computation even if incorrrect
5502 block cipher padding has been found. This is a countermeasure
5503 against active attacks where the attacker has to distinguish
5504 between bad padding and a MAC verification error. (CVE-2003-0078)
5506 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5507 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5508 Martin Vuagnoux (EPFL, Ilion)]
5510 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5512 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5513 memory from it's contents. This is done with a counter that will
5514 place alternating values in each byte. This can be used to solve
5515 two issues: 1) the removal of calls to memset() by highly optimizing
5516 compilers, and 2) cleansing with other values than 0, since those can
5517 be read through on certain media, for example a swap space on disk.
5520 *) Bugfix: client side session caching did not work with external caching,
5521 because the session->cipher setting was not restored when reloading
5522 from the external cache. This problem was masked, when
5523 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5524 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5527 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5528 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5529 [Zeev Lieber <zeev-l@yahoo.com>]
5531 *) Undo an undocumented change introduced in 0.9.6e which caused
5532 repeated calls to OpenSSL_add_all_ciphers() and
5533 OpenSSL_add_all_digests() to be ignored, even after calling
5537 *) Change the default configuration reader to deal with last line not
5538 being properly terminated.
5541 *) Change X509_NAME_cmp() so it applies the special rules on handling
5542 DN values that are of type PrintableString, as well as RDNs of type
5543 emailAddress where the value has the type ia5String.
5544 [stefank@valicert.com via Richard Levitte]
5546 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5547 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5548 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5549 the bitwise-OR of the two for use by the majority of applications
5550 wanting this behaviour, and update the docs. The documented
5551 behaviour and actual behaviour were inconsistent and had been
5552 changing anyway, so this is more a bug-fix than a behavioural
5554 [Geoff Thorpe, diagnosed by Nadav Har'El]
5556 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5557 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5560 *) Fix initialization code race conditions in
5561 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5562 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5563 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5564 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5565 ssl2_get_cipher_by_char(),
5566 ssl3_get_cipher_by_char().
5567 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5569 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5570 the cached sessions are flushed, as the remove_cb() might use ex_data
5571 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5572 (see [openssl.org #212]).
5573 [Geoff Thorpe, Lutz Jaenicke]
5575 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5576 length, instead of the encoding length to d2i_ASN1_OBJECT.
5579 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5581 *) [In 0.9.6g-engine release:]
5582 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5583 [Lynn Gazis <lgazis@rainbow.com>]
5585 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5587 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5588 and get fix the header length calculation.
5589 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5590 Alon Kantor <alonk@checkpoint.com> (and others),
5593 *) Use proper error handling instead of 'assertions' in buffer
5594 overflow checks added in 0.9.6e. This prevents DoS (the
5595 assertions could call abort()).
5596 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5598 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5600 *) Add various sanity checks to asn1_get_length() to reject
5601 the ASN1 length bytes if they exceed sizeof(long), will appear
5602 negative or the content length exceeds the length of the
5604 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5606 *) Fix cipher selection routines: ciphers without encryption had no flags
5607 for the cipher strength set and where therefore not handled correctly
5608 by the selection routines (PR #130).
5611 *) Fix EVP_dsa_sha macro.
5615 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5616 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5617 that was added in OpenSSL 0.9.6d.
5619 As the countermeasure turned out to be incompatible with some
5620 broken SSL implementations, the new option is part of SSL_OP_ALL.
5621 SSL_OP_ALL is usually employed when compatibility with weird SSL
5622 implementations is desired (e.g. '-bugs' option to 's_client' and
5623 's_server'), so the new option is automatically set in many
5627 *) Changes in security patch:
5629 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5630 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5631 Air Force Materiel Command, USAF, under agreement number
5634 *) Add various sanity checks to asn1_get_length() to reject
5635 the ASN1 length bytes if they exceed sizeof(long), will appear
5636 negative or the content length exceeds the length of the
5637 supplied buffer. (CVE-2002-0659)
5638 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5640 *) Assertions for various potential buffer overflows, not known to
5642 [Ben Laurie (CHATS)]
5644 *) Various temporary buffers to hold ASCII versions of integers were
5645 too small for 64 bit platforms. (CVE-2002-0655)
5646 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5648 *) Remote buffer overflow in SSL3 protocol - an attacker could
5649 supply an oversized session ID to a client. (CVE-2002-0656)
5650 [Ben Laurie (CHATS)]
5652 *) Remote buffer overflow in SSL2 protocol - an attacker could
5653 supply an oversized client master key. (CVE-2002-0656)
5654 [Ben Laurie (CHATS)]
5656 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5658 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5659 encoded as NULL) with id-dsa-with-sha1.
5660 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5662 *) Check various X509_...() return values in apps/req.c.
5663 [Nils Larsch <nla@trustcenter.de>]
5665 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5666 an end-of-file condition would erronously be flagged, when the CRLF
5667 was just at the end of a processed block. The bug was discovered when
5668 processing data through a buffering memory BIO handing the data to a
5669 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5670 <ptsekov@syntrex.com> and Nedelcho Stanev.
5673 *) Implement a countermeasure against a vulnerability recently found
5674 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5675 before application data chunks to avoid the use of known IVs
5676 with data potentially chosen by the attacker.
5679 *) Fix length checks in ssl3_get_client_hello().
5682 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5683 to prevent ssl3_read_internal() from incorrectly assuming that
5684 ssl3_read_bytes() found application data while handshake
5685 processing was enabled when in fact s->s3->in_read_app_data was
5686 merely automatically cleared during the initial handshake.
5687 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5689 *) Fix object definitions for Private and Enterprise: they were not
5690 recognized in their shortname (=lowercase) representation. Extend
5691 obj_dat.pl to issue an error when using undefined keywords instead
5692 of silently ignoring the problem (Svenning Sorensen
5693 <sss@sss.dnsalias.net>).
5696 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5697 generators, i.e. generators other than 2 and 5. (Previously, the
5698 code did not properly initialise the 'add' and 'rem' values to
5699 BN_generate_prime().)
5701 In the new general case, we do not insist that 'generator' is
5702 actually a primitive root: This requirement is rather pointless;
5703 a generator of the order-q subgroup is just as good, if not
5707 *) Map new X509 verification errors to alerts. Discovered and submitted by
5708 Tom Wu <tom@arcot.com>.
5711 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5712 returning non-zero before the data has been completely received
5713 when using non-blocking I/O.
5714 [Bodo Moeller; problem pointed out by John Hughes]
5716 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5717 [Ben Laurie, Lutz Jaenicke]
5719 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5720 Yoram Zahavi <YoramZ@gilian.com>).
5723 *) Add information about CygWin 1.3 and on, and preserve proper
5724 configuration for the versions before that.
5725 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5727 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5728 check whether we deal with a copy of a session and do not delete from
5729 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5730 <izhar@checkpoint.com>.
5733 *) Do not store session data into the internal session cache, if it
5734 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5735 flag is set). Proposed by Aslam <aslam@funk.com>.
5738 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5742 *) [In 0.9.6d-engine release:]
5743 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5744 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5746 *) Add the configuration target linux-s390x.
5747 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5749 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5750 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5751 variable as an indication that a ClientHello message has been
5752 received. As the flag value will be lost between multiple
5753 invocations of ssl3_accept when using non-blocking I/O, the
5754 function may not be aware that a handshake has actually taken
5755 place, thus preventing a new session from being added to the
5758 To avoid this problem, we now set s->new_session to 2 instead of
5759 using a local variable.
5760 [Lutz Jaenicke, Bodo Moeller]
5762 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5763 if the SSL_R_LENGTH_MISMATCH error is detected.
5764 [Geoff Thorpe, Bodo Moeller]
5766 *) New 'shared_ldflag' column in Configure platform table.
5769 *) Fix EVP_CIPHER_mode macro.
5770 ["Dan S. Camper" <dan@bti.net>]
5772 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5773 type, we must throw them away by setting rr->length to 0.
5774 [D P Chang <dpc@qualys.com>]
5776 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5778 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5779 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5780 worked incorrectly for those cases where range = 10..._2 and
5781 3*range is two bits longer than range.)
5784 *) Only add signing time to PKCS7 structures if it is not already
5788 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5789 OBJ_ld_ce should be OBJ_id_ce.
5790 Also some ip-pda OIDs in crypto/objects/objects.txt were
5791 incorrect (cf. RFC 3039).
5792 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5794 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5795 returns early because it has nothing to do.
5796 [Andy Schneider <andy.schneider@bjss.co.uk>]
5798 *) [In 0.9.6c-engine release:]
5799 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5800 [Andy Schneider <andy.schneider@bjss.co.uk>]
5802 *) [In 0.9.6c-engine release:]
5803 Add support for Cryptographic Appliance's keyserver technology.
5804 (Use engine 'keyclient')
5805 [Cryptographic Appliances and Geoff Thorpe]
5807 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5808 is called via tools/c89.sh because arguments have to be
5809 rearranged (all '-L' options must appear before the first object
5811 [Richard Shapiro <rshapiro@abinitio.com>]
5813 *) [In 0.9.6c-engine release:]
5814 Add support for Broadcom crypto accelerator cards, backported
5816 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5818 *) [In 0.9.6c-engine release:]
5819 Add support for SureWare crypto accelerator cards from
5820 Baltimore Technologies. (Use engine 'sureware')
5821 [Baltimore Technologies and Mark Cox]
5823 *) [In 0.9.6c-engine release:]
5824 Add support for crypto accelerator cards from Accelerated
5825 Encryption Processing, www.aep.ie. (Use engine 'aep')
5826 [AEP Inc. and Mark Cox]
5828 *) Add a configuration entry for gcc on UnixWare.
5829 [Gary Benson <gbenson@redhat.com>]
5831 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5832 messages are stored in a single piece (fixed-length part and
5833 variable-length part combined) and fix various bugs found on the way.
5836 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5837 instead. BIO_gethostbyname() does not know what timeouts are
5838 appropriate, so entries would stay in cache even when they have
5840 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5842 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5843 faced with a pathologically small ClientHello fragment that does
5844 not contain client_version: Instead of aborting with an error,
5845 simply choose the highest available protocol version (i.e.,
5846 TLS 1.0 unless it is disabled). In practice, ClientHello
5847 messages are never sent like this, but this change gives us
5848 strictly correct behaviour at least for TLS.
5851 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5852 never resets s->method to s->ctx->method when called from within
5853 one of the SSL handshake functions.
5854 [Bodo Moeller; problem pointed out by Niko Baric]
5856 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5857 (sent using the client's version number) if client_version is
5858 smaller than the protocol version in use. Also change
5859 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5860 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5861 the client will at least see that alert.
5864 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5868 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5869 client receives HelloRequest while in a handshake.
5870 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5872 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5873 should end in 'break', not 'goto end' which circuments various
5874 cleanups done in state SSL_ST_OK. But session related stuff
5875 must be disabled for SSL_ST_OK in the case that we just sent a
5878 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5879 before just sending a HelloRequest.
5880 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5882 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5883 reveal whether illegal block cipher padding was found or a MAC
5884 verification error occured. (Neither SSLerr() codes nor alerts
5885 are directly visible to potential attackers, but the information
5886 may leak via logfiles.)
5888 Similar changes are not required for the SSL 2.0 implementation
5889 because the number of padding bytes is sent in clear for SSL 2.0,
5890 and the extra bytes are just ignored. However ssl/s2_pkt.c
5891 failed to verify that the purported number of padding bytes is in
5895 *) Add OpenUNIX-8 support including shared libraries
5896 (Boyd Lynn Gerber <gerberb@zenez.com>).
5899 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5900 'wristwatch attack' using huge encoding parameters (cf.
5901 James H. Manger's CRYPTO 2001 paper). Note that the
5902 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5903 encoding parameters and hence was not vulnerable.
5906 *) BN_sqr() bug fix.
5907 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5909 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5910 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5911 followed by modular reduction.
5912 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5914 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5915 equivalent based on BN_pseudo_rand() instead of BN_rand().
5918 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5919 This function was broken, as the check for a new client hello message
5920 to handle SGC did not allow these large messages.
5921 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5924 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5927 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5928 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5931 *) Rework the configuration and shared library support for Tru64 Unix.
5932 The configuration part makes use of modern compiler features and
5933 still retains old compiler behavior for those that run older versions
5934 of the OS. The shared library support part includes a variant that
5935 uses the RPATH feature, and is available through the special
5936 configuration target "alpha-cc-rpath", which will never be selected
5938 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5940 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5941 with the same message size as in ssl3_get_certificate_request().
5942 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5943 messages might inadvertently be reject as too long.
5944 [Petr Lampa <lampa@fee.vutbr.cz>]
5946 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5949 *) Modified SSL library such that the verify_callback that has been set
5950 specificly for an SSL object with SSL_set_verify() is actually being
5951 used. Before the change, a verify_callback set with this function was
5952 ignored and the verify_callback() set in the SSL_CTX at the time of
5953 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5954 to allow the necessary settings.
5957 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5958 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5959 done automatically (in contradiction to the requirements of the C
5960 standard). This made problems when used from OpenSSH.
5963 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5964 dh->length and always used
5966 BN_rand_range(priv_key, dh->p).
5968 BN_rand_range() is not necessary for Diffie-Hellman, and this
5969 specific range makes Diffie-Hellman unnecessarily inefficient if
5970 dh->length (recommended exponent length) is much smaller than the
5971 length of dh->p. We could use BN_rand_range() if the order of
5972 the subgroup was stored in the DH structure, but we only have
5977 BN_rand(priv_key, l, ...)
5979 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5985 RSA_eay_public_encrypt
5986 RSA_eay_private_decrypt
5987 RSA_eay_private_encrypt (signing)
5988 RSA_eay_public_decrypt (signature verification)
5990 (default implementations for RSA_public_encrypt,
5991 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5992 always reject numbers >= n.
5995 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5996 to synchronize access to 'locking_thread'. This is necessary on
5997 systems where access to 'locking_thread' (an 'unsigned long'
5998 variable) is not atomic.
6001 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6002 *before* setting the 'crypto_lock_rand' flag. The previous code had
6003 a race condition if 0 is a valid thread ID.
6004 [Travis Vitek <vitek@roguewave.com>]
6006 *) Add support for shared libraries under Irix.
6007 [Albert Chin-A-Young <china@thewrittenword.com>]
6009 *) Add configuration option to build on Linux on both big-endian and
6011 [Ralf Baechle <ralf@uni-koblenz.de>]
6013 *) Add the possibility to create shared libraries on HP-UX.
6016 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6018 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6019 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6020 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6021 PRNG state recovery was possible based on the output of
6022 one PRNG request appropriately sized to gain knowledge on
6023 'md' followed by enough consecutive 1-byte PRNG requests
6024 to traverse all of 'state'.
6026 1. When updating 'md_local' (the current thread's copy of 'md')
6027 during PRNG output generation, hash all of the previous
6028 'md_local' value, not just the half used for PRNG output.
6030 2. Make the number of bytes from 'state' included into the hash
6031 independent from the number of PRNG bytes requested.
6033 The first measure alone would be sufficient to avoid
6034 Markku-Juhani's attack. (Actually it had never occurred
6035 to me that the half of 'md_local' used for chaining was the
6036 half from which PRNG output bytes were taken -- I had always
6037 assumed that the secret half would be used.) The second
6038 measure makes sure that additional data from 'state' is never
6039 mixed into 'md_local' in small portions; this heuristically
6040 further strengthens the PRNG.
6043 *) Fix crypto/bn/asm/mips3.s.
6046 *) When only the key is given to "enc", the IV is undefined. Print out
6047 an error message in this case.
6050 *) Handle special case when X509_NAME is empty in X509 printing routines.
6053 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6054 positive and less than q.
6057 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6058 used: it isn't thread safe and the add_lock_callback should handle
6060 [Paul Rose <Paul.Rose@bridge.com>]
6062 *) Verify that incoming data obeys the block size in
6063 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6067 [Ulf Möller, Bodo Möller]
6069 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6070 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6071 when fixing the server behaviour for backwards-compatible 'client
6072 hello' messages. (Note that the attack is impractical against
6073 SSL 3.0 and TLS 1.0 anyway because length and version checking
6074 means that the probability of guessing a valid ciphertext is
6075 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6078 Before 0.9.5, the countermeasure (hide the error by generating a
6079 random 'decryption result') did not work properly because
6080 ERR_clear_error() was missing, meaning that SSL_get_error() would
6081 detect the supposedly ignored error.
6083 Both problems are now fixed.
6086 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6087 (previously it was 1024).
6090 *) Fix for compatibility mode trust settings: ignore trust settings
6091 unless some valid trust or reject settings are present.
6094 *) Fix for blowfish EVP: its a variable length cipher.
6097 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6098 parameters in DSA public key structures and return an error in the
6099 DSA routines if parameters are absent.
6102 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6103 in the current directory if neither $RANDFILE nor $HOME was set.
6104 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6105 caused some confusion to Windows users who haven't defined $HOME.
6106 Thus RAND_file_name() is changed again: e_os.h can define a
6107 DEFAULT_HOME, which will be used if $HOME is not set.
6108 For Windows, we use "C:"; on other platforms, we still require
6109 environment variables.
6111 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6112 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6113 having multiple threads call RAND_poll() concurrently.
6116 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6117 combination of a flag and a thread ID variable.
6118 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6119 flag), *other* threads can enter ssleay_add_bytes without obeying
6120 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6121 that they do not hold after the first thread unsets add_do_not_lock).
6124 *) Change bctest again: '-x' expressions are not available in all
6128 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6130 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6131 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6133 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6134 the default extension for executables, if any. Also, make the perl
6135 scripts that use symlink() to test if it really exists and use "cp"
6136 if it doesn't. All this made OpenSSL compilable and installable in
6140 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6141 If SEQUENCE is length is indefinite just set c->slen to the total
6142 amount of data available.
6143 [Steve Henson, reported by shige@FreeBSD.org]
6144 [This change does not apply to 0.9.7.]
6146 *) Change bctest to avoid here-documents inside command substitution
6147 (workaround for FreeBSD /bin/sh bug).
6148 For compatibility with Ultrix, avoid shell functions (introduced
6149 in the bctest version that searches along $PATH).
6152 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6153 with des_encrypt() defined on some operating systems, like Solaris
6157 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6158 On the Importance of Eliminating Errors in Cryptographic
6159 Computations, J. Cryptology 14 (2001) 2, 101-119,
6160 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6163 *) MIPS assembler BIGNUM division bug fix.
6166 *) Disabled incorrect Alpha assembler code.
6169 *) Fix PKCS#7 decode routines so they correctly update the length
6170 after reading an EOC for the EXPLICIT tag.
6172 [This change does not apply to 0.9.7.]
6174 *) Fix bug in PKCS#12 key generation routines. This was triggered
6175 if a 3DES key was generated with a 0 initial byte. Include
6176 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6177 (but broken) behaviour.
6180 *) Enhance bctest to search for a working bc along $PATH and print
6182 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6184 *) Fix memory leaks in err.c: free err_data string if necessary;
6185 don't write to the wrong index in ERR_set_error_data.
6188 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6192 *) Replace rdtsc with _emit statements for VC++ version 5.
6193 [Jeremy Cooper <jeremy@baymoo.org>]
6195 *) Make it possible to reuse SSLv2 sessions.
6198 *) In copy_email() check for >= 0 as a return value for
6199 X509_NAME_get_index_by_NID() since 0 is a valid index.
6200 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6202 *) Avoid coredump with unsupported or invalid public keys by checking if
6203 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6204 PKCS7_verify() fails with non detached data.
6207 *) Don't use getenv in library functions when run as setuid/setgid.
6208 New function OPENSSL_issetugid().
6211 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6212 due to incorrect handling of multi-threading:
6214 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6216 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6218 3. Count how many times MemCheck_off() has been called so that
6219 nested use can be treated correctly. This also avoids
6220 inband-signalling in the previous code (which relied on the
6221 assumption that thread ID 0 is impossible).
6224 *) Add "-rand" option also to s_client and s_server.
6227 *) Fix CPU detection on Irix 6.x.
6228 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6229 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6231 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6234 [This change does not apply to 0.9.7.]
6236 *) Use the cached encoding of an X509_NAME structure rather than
6237 copying it. This is apparently the reason for the libsafe "errors"
6238 but the code is actually correct.
6241 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6242 Bleichenbacher's DSA attack.
6243 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6244 to be set and top=0 forces the highest bit to be set; top=-1 is new
6245 and leaves the highest bit random.
6246 [Ulf Moeller, Bodo Moeller]
6248 *) In the NCONF_...-based implementations for CONF_... queries
6249 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6250 a temporary CONF structure with the data component set to NULL
6251 (which gives segmentation faults in lh_retrieve).
6252 Instead, use NULL for the CONF pointer in CONF_get_string and
6253 CONF_get_number (which may use environment variables) and directly
6254 return NULL from CONF_get_section.
6257 *) Fix potential buffer overrun for EBCDIC.
6260 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6261 keyUsage if basicConstraints absent for a CA.
6264 *) Make SMIME_write_PKCS7() write mail header values with a format that
6265 is more generally accepted (no spaces before the semicolon), since
6266 some programs can't parse those values properly otherwise. Also make
6267 sure BIO's that break lines after each write do not create invalid
6271 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6272 macros previously used would not encode an empty SEQUENCE OF
6273 and break the signature.
6275 [This change does not apply to 0.9.7.]
6277 *) Zero the premaster secret after deriving the master secret in
6281 *) Add some EVP_add_digest_alias registrations (as found in
6282 OpenSSL_add_all_digests()) to SSL_library_init()
6283 aka OpenSSL_add_ssl_algorithms(). This provides improved
6284 compatibility with peers using X.509 certificates
6285 with unconventional AlgorithmIdentifier OIDs.
6288 *) Fix for Irix with NO_ASM.
6289 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6291 *) ./config script fixes.
6292 [Ulf Moeller, Richard Levitte]
6294 *) Fix 'openssl passwd -1'.
6297 *) Change PKCS12_key_gen_asc() so it can cope with non null
6298 terminated strings whose length is passed in the passlen
6299 parameter, for example from PEM callbacks. This was done
6300 by adding an extra length parameter to asc2uni().
6301 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6303 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6304 call failed, free the DSA structure.
6307 *) Fix to uni2asc() to cope with zero length Unicode strings.
6308 These are present in some PKCS#12 files.
6311 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6312 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6313 when writing a 32767 byte record.
6314 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6316 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6317 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6319 (RSA objects have a reference count access to which is protected
6320 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6321 so they are meant to be shared between threads.)
6322 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6323 "Reddie, Steven" <Steven.Reddie@ca.com>]
6325 *) Fix a deadlock in CRYPTO_mem_leaks().
6328 *) Use better test patterns in bntest.
6331 *) rand_win.c fix for Borland C.
6334 *) BN_rshift bugfix for n == 0.
6337 *) Add a 'bctest' script that checks for some known 'bc' bugs
6338 so that 'make test' does not abort just because 'bc' is broken.
6341 *) Store verify_result within SSL_SESSION also for client side to
6342 avoid potential security hole. (Re-used sessions on the client side
6343 always resulted in verify_result==X509_V_OK, not using the original
6344 result of the server certificate verification.)
6347 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6348 SSL3_RT_APPLICATION_DATA, return 0.
6349 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6353 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6354 releases, have been re-implemented by renaming the previous
6355 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6356 and ssl3_read_internal, respectively, and adding 'peek' parameters
6357 to them. The new ssl[23]_{read,peek} functions are calls to
6358 ssl[23]_read_internal with the 'peek' flag set appropriately.
6359 A 'peek' parameter has also been added to ssl3_read_bytes, which
6360 does the actual work for ssl3_read_internal.
6363 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6364 the method-specific "init()" handler. Also clean up ex_data after
6365 calling the method-specific "finish()" handler. Previously, this was
6366 happening the other way round.
6369 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6370 The previous value, 12, was not always sufficient for BN_mod_exp().
6373 *) Make sure that shared libraries get the internal name engine with
6374 the full version number and not just 0. This should mark the
6375 shared libraries as not backward compatible. Of course, this should
6376 be changed again when we can guarantee backward binary compatibility.
6379 *) Fix typo in get_cert_by_subject() in by_dir.c
6380 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6382 *) Rework the system to generate shared libraries:
6384 - Make note of the expected extension for the shared libraries and
6385 if there is a need for symbolic links from for example libcrypto.so.0
6386 to libcrypto.so.0.9.7. There is extended info in Configure for
6389 - Make as few rebuilds of the shared libraries as possible.
6391 - Still avoid linking the OpenSSL programs with the shared libraries.
6393 - When installing, install the shared libraries separately from the
6397 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6399 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6400 and not in SSL_clear because the latter is also used by the
6401 accept/connect functions; previously, the settings made by
6402 SSL_set_read_ahead would be lost during the handshake.
6403 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6405 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6406 Previously, it would create entries for disableed algorithms no
6410 *) Added several new manual pages for SSL_* function.
6413 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6415 *) In ssl23_get_client_hello, generate an error message when faced
6416 with an initial SSL 3.0/TLS record that is too small to contain the
6417 first two bytes of the ClientHello message, i.e. client_version.
6418 (Note that this is a pathologic case that probably has never happened
6419 in real life.) The previous approach was to use the version number
6420 from the record header as a substitute; but our protocol choice
6421 should not depend on that one because it is not authenticated
6422 by the Finished messages.
6425 *) More robust randomness gathering functions for Windows.
6426 [Jeffrey Altman <jaltman@columbia.edu>]
6428 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6429 not set then we don't setup the error code for issuer check errors
6430 to avoid possibly overwriting other errors which the callback does
6431 handle. If an application does set the flag then we assume it knows
6432 what it is doing and can handle the new informational codes
6436 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6437 a general "ANY" type, as such it should be able to decode anything
6438 including tagged types. However it didn't check the class so it would
6439 wrongly interpret tagged types in the same way as their universal
6440 counterpart and unknown types were just rejected. Changed so that the
6441 tagged and unknown types are handled in the same way as a SEQUENCE:
6442 that is the encoding is stored intact. There is also a new type
6443 "V_ASN1_OTHER" which is used when the class is not universal, in this
6444 case we have no idea what the actual type is so we just lump them all
6448 *) On VMS, stdout may very well lead to a file that is written to
6449 in a record-oriented fashion. That means that every write() will
6450 write a separate record, which will be read separately by the
6451 programs trying to read from it. This can be very confusing.
6453 The solution is to put a BIO filter in the way that will buffer
6454 text until a linefeed is reached, and then write everything a
6455 line at a time, so every record written will be an actual line,
6456 not chunks of lines and not (usually doesn't happen, but I've
6457 seen it once) several lines in one record. BIO_f_linebuffer() is
6460 Currently, it's a VMS-only method, because that's where it has
6461 been tested well enough.
6464 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6465 it can return incorrect results.
6466 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6467 but it was in 0.9.6-beta[12].)
6470 *) Disable the check for content being present when verifying detached
6471 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6472 include zero length content when signing messages.
6475 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6476 BIO_ctrl (for BIO pairs).
6479 *) Add DSO method for VMS.
6482 *) Bug fix: Montgomery multiplication could produce results with the
6486 *) Add RPM specification openssl.spec and modify it to build three
6487 packages. The default package contains applications, application
6488 documentation and run-time libraries. The devel package contains
6489 include files, static libraries and function documentation. The
6490 doc package contains the contents of the doc directory. The original
6491 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6494 *) Add a large number of documentation files for many SSL routines.
6495 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6497 *) Add a configuration entry for Sony News 4.
6498 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6500 *) Don't set the two most significant bits to one when generating a
6501 random number < q in the DSA library.
6504 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6505 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6506 the underlying transport is blocking) if a handshake took place.
6507 (The default behaviour is needed by applications such as s_client
6508 and s_server that use select() to determine when to use SSL_read;
6509 but for applications that know in advance when to expect data, it
6510 just makes things more complicated.)
6513 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6517 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6518 work better on such systems.
6519 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6521 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6522 Update PKCS12_parse() so it copies the friendlyName and the
6523 keyid to the certificates aux info.
6526 *) Fix bug in PKCS7_verify() which caused an infinite loop
6527 if there was more than one signature.
6528 [Sven Uszpelkat <su@celocom.de>]
6530 *) Major change in util/mkdef.pl to include extra information
6531 about each symbol, as well as presentig variables as well
6532 as functions. This change means that there's n more need
6533 to rebuild the .num files when some algorithms are excluded.
6536 *) Allow the verify time to be set by an application,
6537 rather than always using the current time.
6540 *) Phase 2 verify code reorganisation. The certificate
6541 verify code now looks up an issuer certificate by a
6542 number of criteria: subject name, authority key id
6543 and key usage. It also verifies self signed certificates
6544 by the same criteria. The main comparison function is
6545 X509_check_issued() which performs these checks.
6547 Lot of changes were necessary in order to support this
6548 without completely rewriting the lookup code.
6550 Authority and subject key identifier are now cached.
6552 The LHASH 'certs' is X509_STORE has now been replaced
6553 by a STACK_OF(X509_OBJECT). This is mainly because an
6554 LHASH can't store or retrieve multiple objects with
6555 the same hash value.
6557 As a result various functions (which were all internal
6558 use only) have changed to handle the new X509_STORE
6559 structure. This will break anything that messed round
6560 with X509_STORE internally.
6562 The functions X509_STORE_add_cert() now checks for an
6563 exact match, rather than just subject name.
6565 The X509_STORE API doesn't directly support the retrieval
6566 of multiple certificates matching a given criteria, however
6567 this can be worked round by performing a lookup first
6568 (which will fill the cache with candidate certificates)
6569 and then examining the cache for matches. This is probably
6570 the best we can do without throwing out X509_LOOKUP
6571 entirely (maybe later...).
6573 The X509_VERIFY_CTX structure has been enhanced considerably.
6575 All certificate lookup operations now go via a get_issuer()
6576 callback. Although this currently uses an X509_STORE it
6577 can be replaced by custom lookups. This is a simple way
6578 to bypass the X509_STORE hackery necessary to make this
6579 work and makes it possible to use more efficient techniques
6580 in future. A very simple version which uses a simple
6581 STACK for its trusted certificate store is also provided
6582 using X509_STORE_CTX_trusted_stack().
6584 The verify_cb() and verify() callbacks now have equivalents
6585 in the X509_STORE_CTX structure.
6587 X509_STORE_CTX also has a 'flags' field which can be used
6588 to customise the verify behaviour.
6591 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6592 excludes S/MIME capabilities.
6595 *) When a certificate request is read in keep a copy of the
6596 original encoding of the signed data and use it when outputing
6597 again. Signatures then use the original encoding rather than
6598 a decoded, encoded version which may cause problems if the
6599 request is improperly encoded.
6602 *) For consistency with other BIO_puts implementations, call
6603 buffer_write(b, ...) directly in buffer_puts instead of calling
6606 In BIO_puts, increment b->num_write as in BIO_write.
6607 [Peter.Sylvester@EdelWeb.fr]
6609 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6610 BN_zero, we may not return a BIGNUM with an array consisting of
6614 *) Avoid calling abort() from within the library when problems are
6615 detected, except if preprocessor symbols have been defined
6616 (such as REF_CHECK, BN_DEBUG etc.).
6619 *) New openssl application 'rsautl'. This utility can be
6620 used for low level RSA operations. DER public key
6621 BIO/fp routines also added.
6624 *) New Configure entry and patches for compiling on QNX 4.
6625 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6627 *) A demo state-machine implementation was sponsored by
6628 Nuron (http://www.nuron.com/) and is now available in
6629 demos/state_machine.
6632 *) New options added to the 'dgst' utility for signature
6633 generation and verification.
6636 *) Unrecognized PKCS#7 content types are now handled via a
6637 catch all ASN1_TYPE structure. This allows unsupported
6638 types to be stored as a "blob" and an application can
6639 encode and decode it manually.
6642 *) Fix various signed/unsigned issues to make a_strex.c
6644 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6646 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6647 length if passed a buffer. ASN1_INTEGER_to_BN failed
6648 if passed a NULL BN and its argument was negative.
6649 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6651 *) Modification to PKCS#7 encoding routines to output definite
6652 length encoding. Since currently the whole structures are in
6653 memory there's not real point in using indefinite length
6654 constructed encoding. However if OpenSSL is compiled with
6655 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6658 *) Added BIO_vprintf() and BIO_vsnprintf().
6661 *) Added more prefixes to parse for in the the strings written
6662 through a logging bio, to cover all the levels that are available
6663 through syslog. The prefixes are now:
6665 PANIC, EMERG, EMR => LOG_EMERG
6666 ALERT, ALR => LOG_ALERT
6667 CRIT, CRI => LOG_CRIT
6668 ERROR, ERR => LOG_ERR
6669 WARNING, WARN, WAR => LOG_WARNING
6670 NOTICE, NOTE, NOT => LOG_NOTICE
6671 INFO, INF => LOG_INFO
6672 DEBUG, DBG => LOG_DEBUG
6674 and as before, if none of those prefixes are present at the
6675 beginning of the string, LOG_ERR is chosen.
6677 On Win32, the LOG_* levels are mapped according to this:
6679 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6680 LOG_WARNING => EVENTLOG_WARNING_TYPE
6681 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6685 *) Made it possible to reconfigure with just the configuration
6686 argument "reconf" or "reconfigure". The command line arguments
6687 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6688 and are retrieved from there when reconfiguring.
6692 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6694 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6697 *) The obj_dat.pl script was messing up the sorting of object
6698 names. The reason was that it compared the quoted version
6699 of strings as a result "OCSP" > "OCSP Signing" because
6700 " > SPACE. Changed script to store unquoted versions of
6701 names and add quotes on output. It was also omitting some
6702 names from the lookup table if they were given a default
6703 value (that is if SN is missing it is given the same
6704 value as LN and vice versa), these are now added on the
6705 grounds that if an object has a name we should be able to
6706 look it up. Finally added warning output when duplicate
6707 short or long names are found.
6710 *) Changes needed for Tandem NSK.
6711 [Scott Uroff <scott@xypro.com>]
6713 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6714 RSA_padding_check_SSLv23(), special padding was never detected
6715 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6716 version rollback attacks was not effective.
6718 In s23_clnt.c, don't use special rollback-attack detection padding
6719 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6720 client; similarly, in s23_srvr.c, don't do the rollback check if
6721 SSL 2.0 is the only protocol enabled in the server.
6724 *) Make it possible to get hexdumps of unprintable data with 'openssl
6725 asn1parse'. By implication, the functions ASN1_parse_dump() and
6726 BIO_dump_indent() are added.
6729 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6730 these print out strings and name structures based on various
6731 flags including RFC2253 support and proper handling of
6732 multibyte characters. Added options to the 'x509' utility
6733 to allow the various flags to be set.
6736 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6737 Also change the functions X509_cmp_current_time() and
6738 X509_gmtime_adj() work with an ASN1_TIME structure,
6739 this will enable certificates using GeneralizedTime in validity
6740 dates to be checked.
6743 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6744 negative public key encodings) on by default,
6745 NO_NEG_PUBKEY_BUG can be set to disable it.
6748 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6749 content octets. An i2c_ASN1_OBJECT is unnecessary because
6750 the encoding can be trivially obtained from the structure.
6753 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6754 not read locks (CRYPTO_r_[un]lock).
6757 *) A first attempt at creating official support for shared
6758 libraries through configuration. I've kept it so the
6759 default is static libraries only, and the OpenSSL programs
6760 are always statically linked for now, but there are
6761 preparations for dynamic linking in place.
6762 This has been tested on Linux and Tru64.
6765 *) Randomness polling function for Win9x, as described in:
6766 Peter Gutmann, Software Generation of Practically Strong
6770 *) Fix so PRNG is seeded in req if using an already existing
6774 *) New options to smime application. -inform and -outform
6775 allow alternative formats for the S/MIME message including
6776 PEM and DER. The -content option allows the content to be
6777 specified separately. This should allow things like Netscape
6778 form signing output easier to verify.
6781 *) Fix the ASN1 encoding of tags using the 'long form'.
6784 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6785 STRING types. These convert content octets to and from the
6786 underlying type. The actual tag and length octets are
6787 already assumed to have been read in and checked. These
6788 are needed because all other string types have virtually
6789 identical handling apart from the tag. By having versions
6790 of the ASN1 functions that just operate on content octets
6791 IMPLICIT tagging can be handled properly. It also allows
6792 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6793 and ASN1_INTEGER are identical apart from the tag.
6796 *) Change the handling of OID objects as follows:
6798 - New object identifiers are inserted in objects.txt, following
6799 the syntax given in objects.README.
6800 - objects.pl is used to process obj_mac.num and create a new
6802 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6805 This is currently kind of a hack, and the perl code in objects.pl
6806 isn't very elegant, but it works as I intended. The simplest way
6807 to check that it worked correctly is to look in obj_dat.h and
6808 check the array nid_objs and make sure the objects haven't moved
6809 around (this is important!). Additions are OK, as well as
6810 consistent name changes.
6813 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6816 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6817 The given file adds to whatever has already been seeded into the
6818 random pool through the RANDFILE configuration file option or
6819 environment variable, or the default random state file.
6822 *) mkstack.pl now sorts each macro group into lexical order.
6823 Previously the output order depended on the order the files
6824 appeared in the directory, resulting in needless rewriting
6828 *) Patches to make OpenSSL compile under Win32 again. Mostly
6829 work arounds for the VC++ problem that it treats func() as
6830 func(void). Also stripped out the parts of mkdef.pl that
6831 added extra typesafe functions: these no longer exist.
6834 *) Reorganisation of the stack code. The macros are now all
6835 collected in safestack.h . Each macro is defined in terms of
6836 a "stack macro" of the form SKM_<name>(type, a, b). The
6837 DEBUG_SAFESTACK is now handled in terms of function casts,
6838 this has the advantage of retaining type safety without the
6839 use of additional functions. If DEBUG_SAFESTACK is not defined
6840 then the non typesafe macros are used instead. Also modified the
6841 mkstack.pl script to handle the new form. Needs testing to see
6842 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6843 the default if no major problems. Similar behaviour for ASN1_SET_OF
6844 and PKCS12_STACK_OF.
6847 *) When some versions of IIS use the 'NET' form of private key the
6848 key derivation algorithm is different. Normally MD5(password) is
6849 used as a 128 bit RC4 key. In the modified case
6850 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6851 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6852 as the old Netscape_RSA functions except they have an additional
6853 'sgckey' parameter which uses the modified algorithm. Also added
6854 an -sgckey command line option to the rsa utility. Thanks to
6855 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6856 algorithm to openssl-dev.
6859 *) The evp_local.h macros were using 'c.##kname' which resulted in
6860 invalid expansion on some systems (SCO 5.0.5 for example).
6861 Corrected to 'c.kname'.
6862 [Phillip Porch <root@theporch.com>]
6864 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6865 a STACK of email addresses from a certificate or request, these look
6866 in the subject name and the subject alternative name extensions and
6867 omit any duplicate addresses.
6870 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6871 This makes DSA verification about 2 % faster.
6874 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6875 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6876 plus overhead for 1024 bit moduli).
6877 This makes exponentiations about 0.5 % faster for 1024 bit
6878 exponents (as measured by "openssl speed rsa2048").
6881 *) Rename memory handling macros to avoid conflicts with other
6883 Malloc => OPENSSL_malloc
6884 Malloc_locked => OPENSSL_malloc_locked
6885 Realloc => OPENSSL_realloc
6886 Free => OPENSSL_free
6889 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6890 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6893 *) CygWin32 support.
6894 [John Jarvie <jjarvie@newsguy.com>]
6896 *) The type-safe stack code has been rejigged. It is now only compiled
6897 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6898 by default all type-specific stack functions are "#define"d back to
6899 standard stack functions. This results in more streamlined output
6900 but retains the type-safety checking possibilities of the original
6904 *) The STACK code has been cleaned up, and certain type declarations
6905 that didn't make a lot of sense have been brought in line. This has
6906 also involved a cleanup of sorts in safestack.h to more correctly
6907 map type-safe stack functions onto their plain stack counterparts.
6908 This work has also resulted in a variety of "const"ifications of
6909 lots of the code, especially "_cmp" operations which should normally
6910 be prototyped with "const" parameters anyway.
6913 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6914 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6915 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6916 where all of 'md' is used each time the PRNG is used, but 'state'
6917 is used only indexed by a cyclic counter. As entropy may not be
6918 well distributed from the beginning, 'md' is important as a
6919 chaining variable. However, the output function chains only half
6920 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6921 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6922 in all of 'state' being rewritten, with the new values depending
6923 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6926 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6927 the handshake is continued after ssl_verify_cert_chain();
6928 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6929 can lead to 'unexplainable' connection aborts later.
6930 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6932 *) Major EVP API cipher revision.
6933 Add hooks for extra EVP features. This allows various cipher
6934 parameters to be set in the EVP interface. Support added for variable
6935 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6936 setting of RC2 and RC5 parameters.
6938 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6941 Remove lots of duplicated code from the EVP library. For example *every*
6942 cipher init() function handles the 'iv' in the same way according to the
6943 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6944 for CFB and OFB modes they zero ctx->num.
6946 New functionality allows removal of S/MIME code RC2 hack.
6948 Most of the routines have the same form and so can be declared in terms
6951 By shifting this to the top level EVP_CipherInit() it can be removed from
6952 all individual ciphers. If the cipher wants to handle IVs or keys
6953 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6956 Change lots of functions like EVP_EncryptUpdate() to now return a
6957 value: although software versions of the algorithms cannot fail
6958 any installed hardware versions can.
6961 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6962 this option is set, tolerate broken clients that send the negotiated
6963 protocol version number instead of the requested protocol version
6967 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6968 i.e. non-zero for export ciphersuites, zero otherwise.
6969 Previous versions had this flag inverted, inconsistent with
6970 rsa_tmp_cb (..._TMP_RSA_CB).
6971 [Bodo Moeller; problem reported by Amit Chopra]
6973 *) Add missing DSA library text string. Work around for some IIS
6974 key files with invalid SEQUENCE encoding.
6977 *) Add a document (doc/standards.txt) that list all kinds of standards
6978 and so on that are implemented in OpenSSL.
6981 *) Enhance c_rehash script. Old version would mishandle certificates
6982 with the same subject name hash and wouldn't handle CRLs at all.
6983 Added -fingerprint option to crl utility, to support new c_rehash
6987 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6990 *) Fix for SSL server purpose checking. Server checking was
6991 rejecting certificates which had extended key usage present
6992 but no ssl client purpose.
6993 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6995 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6996 is a little unclear about how a blank password is handled.
6997 Since the password in encoded as a BMPString with terminating
6998 double NULL a zero length password would end up as just the
6999 double NULL. However no password at all is different and is
7000 handled differently in the PKCS#12 key generation code. NS
7001 treats a blank password as zero length. MSIE treats it as no
7002 password on export: but it will try both on import. We now do
7003 the same: PKCS12_parse() tries zero length and no password if
7004 the password is set to "" or NULL (NULL is now a valid password:
7005 it wasn't before) as does the pkcs12 application.
7008 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7009 perror when PEM_read_bio_X509_REQ fails, the error message must
7010 be obtained from the error queue.
7013 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7014 it in ERR_remove_state if appropriate, and change ERR_get_state
7015 accordingly to avoid race conditions (this is necessary because
7016 thread_hash is no longer constant once set).
7019 *) Bugfix for linux-elf makefile.one.
7022 *) RSA_get_default_method() will now cause a default
7023 RSA_METHOD to be chosen if one doesn't exist already.
7024 Previously this was only set during a call to RSA_new()
7025 or RSA_new_method(NULL) meaning it was possible for
7026 RSA_get_default_method() to return NULL.
7029 *) Added native name translation to the existing DSO code
7030 that will convert (if the flag to do so is set) filenames
7031 that are sufficiently small and have no path information
7032 into a canonical native form. Eg. "blah" converted to
7033 "libblah.so" or "blah.dll" etc.
7036 *) New function ERR_error_string_n(e, buf, len) which is like
7037 ERR_error_string(e, buf), but writes at most 'len' bytes
7038 including the 0 terminator. For ERR_error_string_n, 'buf'
7040 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7042 *) CONF library reworked to become more general. A new CONF
7043 configuration file reader "class" is implemented as well as a
7044 new functions (NCONF_*, for "New CONF") to handle it. The now
7045 old CONF_* functions are still there, but are reimplemented to
7046 work in terms of the new functions. Also, a set of functions
7047 to handle the internal storage of the configuration data is
7048 provided to make it easier to write new configuration file
7049 reader "classes" (I can definitely see something reading a
7050 configuration file in XML format, for example), called _CONF_*,
7051 or "the configuration storage API"...
7053 The new configuration file reading functions are:
7055 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7056 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7058 NCONF_default, NCONF_WIN32
7060 NCONF_dump_fp, NCONF_dump_bio
7062 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7063 NCONF_new creates a new CONF object. This works in the same way
7064 as other interfaces in OpenSSL, like the BIO interface.
7065 NCONF_dump_* dump the internal storage of the configuration file,
7066 which is useful for debugging. All other functions take the same
7067 arguments as the old CONF_* functions wth the exception of the
7068 first that must be a `CONF *' instead of a `LHASH *'.
7070 To make it easer to use the new classes with the old CONF_* functions,
7071 the function CONF_set_default_method is provided.
7074 *) Add '-tls1' option to 'openssl ciphers', which was already
7075 mentioned in the documentation but had not been implemented.
7076 (This option is not yet really useful because even the additional
7077 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7080 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7081 OpenSSL-based applications) load shared libraries and bind to
7082 them in a portable way.
7083 [Geoff Thorpe, with contributions from Richard Levitte]
7085 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7087 *) Make sure _lrotl and _lrotr are only used with MSVC.
7089 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7090 (the default implementation of RAND_status).
7092 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7093 to '-clrext' (= clear extensions), as intended and documented.
7094 [Bodo Moeller; inconsistency pointed out by Michael Attili
7097 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7098 was larger than the MD block size.
7099 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7101 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7102 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7103 using the passed key: if the passed key was a private key the result
7104 of X509_print(), for example, would be to print out all the private key
7108 *) des_quad_cksum() byte order bug fix.
7109 [Ulf Möller, using the problem description in krb4-0.9.7, where
7110 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7112 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7114 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7116 *) For easily testing in shell scripts whether some command
7117 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7118 returns with exit code 0 iff no command of the given name is available.
7119 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7120 the output goes to stdout and nothing is printed to stderr.
7121 Additional arguments are always ignored.
7123 Since for each cipher there is a command of the same name,
7124 the 'no-cipher' compilation switches can be tested this way.
7126 ('openssl no-XXX' is not able to detect pseudo-commands such
7127 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7130 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7133 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7134 is set; it will be thrown away anyway because each handshake creates
7136 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7137 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7138 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7139 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7142 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7143 'Q' and 'R' lose their special meanings (quit/renegotiate).
7144 This is part of what -quiet does; unlike -quiet, -ign_eof
7145 does not suppress any output.
7148 *) Add compatibility options to the purpose and trust code. The
7149 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7150 accepts a certificate or CA, this was the previous behaviour,
7151 with all the associated security issues.
7153 X509_TRUST_COMPAT is the old trust behaviour: only and
7154 automatically trust self signed roots in certificate store. A
7155 new trust setting X509_TRUST_DEFAULT is used to specify that
7156 a purpose has no associated trust setting and it should instead
7157 use the value in the default purpose.
7160 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7161 and fix a memory leak.
7164 *) In util/mkerr.pl (which implements 'make errors'), preserve
7165 reason strings from the previous version of the .c file, as
7166 the default to have only downcase letters (and digits) in
7167 automatically generated reasons codes is not always appropriate.
7170 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7171 using strerror. Previously, ERR_reason_error_string() returned
7172 library names as reason strings for SYSerr; but SYSerr is a special
7173 case where small numbers are errno values, not library numbers.
7176 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7177 converts DSA parameters into DH parameters. (When creating parameters,
7178 DSA_generate_parameters is used.)
7181 *) Include 'length' (recommended exponent length) in C code generated
7182 by 'openssl dhparam -C'.
7185 *) The second argument to set_label in perlasm was already being used
7186 so couldn't be used as a "file scope" flag. Moved to third argument
7190 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7191 instead of RAND_bytes for encryption IVs and salts.
7194 *) Include RAND_status() into RAND_METHOD instead of implementing
7195 it only for md_rand.c Otherwise replacing the PRNG by calling
7196 RAND_set_rand_method would be impossible.
7199 *) Don't let DSA_generate_key() enter an infinite loop if the random
7200 number generation fails.
7203 *) New 'rand' application for creating pseudo-random output.
7206 *) Added configuration support for Linux/IA64
7207 [Rolf Haberrecker <rolf@suse.de>]
7209 *) Assembler module support for Mingw32.
7212 *) Shared library support for HPUX (in shlib/).
7213 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7215 *) Shared library support for Solaris gcc.
7216 [Lutz Behnke <behnke@trustcenter.de>]
7218 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7220 *) PKCS7_encrypt() was adding text MIME headers twice because they
7221 were added manually and by SMIME_crlf_copy().
7224 *) In bntest.c don't call BN_rand with zero bits argument.
7225 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7227 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7228 case was implemented. This caused BN_div_recp() to fail occasionally.
7231 *) Add an optional second argument to the set_label() in the perl
7232 assembly language builder. If this argument exists and is set
7233 to 1 it signals that the assembler should use a symbol whose
7234 scope is the entire file, not just the current function. This
7235 is needed with MASM which uses the format label:: for this scope.
7236 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7238 *) Change the ASN1 types so they are typedefs by default. Before
7239 almost all types were #define'd to ASN1_STRING which was causing
7240 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7244 *) Change names of new functions to the new get1/get0 naming
7245 convention: After 'get1', the caller owns a reference count
7246 and has to call ..._free; 'get0' returns a pointer to some
7247 data structure without incrementing reference counters.
7248 (Some of the existing 'get' functions increment a reference
7249 counter, some don't.)
7250 Similarly, 'set1' and 'add1' functions increase reference
7251 counters or duplicate objects.
7254 *) Allow for the possibility of temp RSA key generation failure:
7255 the code used to assume it always worked and crashed on failure.
7258 *) Fix potential buffer overrun problem in BIO_printf().
7259 [Ulf Möller, using public domain code by Patrick Powell; problem
7260 pointed out by David Sacerdote <das33@cornell.edu>]
7262 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7263 RAND_egd() and RAND_status(). In the command line application,
7264 the EGD socket can be specified like a seed file using RANDFILE
7268 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7269 Some CAs (e.g. Verisign) distribute certificates in this form.
7272 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7273 list to exclude them. This means that no special compilation option
7274 is needed to use anonymous DH: it just needs to be included in the
7278 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7279 EVP_MD_type. The old functionality is available in a new macro called
7280 EVP_MD_md(). Change code that uses it and update docs.
7283 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7284 where the 'void *' argument is replaced by a function pointer argument.
7285 Previously 'void *' was abused to point to functions, which works on
7286 many platforms, but is not correct. As these functions are usually
7287 called by macros defined in OpenSSL header files, most source code
7288 should work without changes.
7291 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7292 sections with information on -D... compiler switches used for
7293 compiling the library so that applications can see them. To enable
7294 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7295 must be defined. E.g.,
7296 #define OPENSSL_ALGORITHM_DEFINES
7297 #include <openssl/opensslconf.h>
7298 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7299 [Richard Levitte, Ulf and Bodo Möller]
7301 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7305 *) Change the 'other' type in certificate aux info to a STACK_OF
7306 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7307 the required ASN1 format: arbitrary types determined by an OID.
7310 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7311 argument to 'req'. This is not because the function is newer or
7312 better than others it just uses the work 'NEW' in the certificate
7313 request header lines. Some software needs this.
7316 *) Reorganise password command line arguments: now passwords can be
7317 obtained from various sources. Delete the PEM_cb function and make
7318 it the default behaviour: i.e. if the callback is NULL and the
7319 usrdata argument is not NULL interpret it as a null terminated pass
7320 phrase. If usrdata and the callback are NULL then the pass phrase
7321 is prompted for as usual.
7324 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7325 the support is automatically enabled. The resulting binaries will
7326 autodetect the card and use it if present.
7327 [Ben Laurie and Compaq Inc.]
7329 *) Work around for Netscape hang bug. This sends certificate request
7330 and server done in one record. Since this is perfectly legal in the
7331 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7332 the bugs/SSLv3 entry for more info.
7335 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7338 *) Add -rand argument to smime and pkcs12 applications and read/write
7342 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7345 *) Add command line password options to the remaining applications.
7348 *) Bug fix for BN_div_recp() for numerators with an even number of
7352 *) More tests in bntest.c, and changed test_bn output.
7355 *) ./config recognizes MacOS X now.
7358 *) Bug fix for BN_div() when the first words of num and divsor are
7359 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7362 *) Add support for various broken PKCS#8 formats, and command line
7363 options to produce them.
7366 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7367 get temporary BIGNUMs from a BN_CTX.
7370 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7374 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7375 include a #define from the old name to the new. The original intent
7376 was that statically linked binaries could for example just call
7377 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7378 link with digests. This never worked becayse SSLeay_add_all_digests()
7379 and SSLeay_add_all_ciphers() were in the same source file so calling
7380 one would link with the other. They are now in separate source files.
7383 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7386 *) Use a less unusual form of the Miller-Rabin primality test (it used
7387 a binary algorithm for exponentiation integrated into the Miller-Rabin
7388 loop, our standard modexp algorithms are faster).
7391 *) Support for the EBCDIC character set completed.
7392 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7394 *) Source code cleanups: use const where appropriate, eliminate casts,
7395 use void * instead of char * in lhash.
7398 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7399 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7400 this the server could overwrite ephemeral keys that the client
7404 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7405 using 50 iterations of the Rabin-Miller test.
7407 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7408 iterations of the Rabin-Miller test as required by the appendix
7409 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7410 As BN_is_prime_fasttest includes trial division, DSA parameter
7411 generation becomes much faster.
7413 This implies a change for the callback functions in DSA_is_prime
7414 and DSA_generate_parameters: The callback function is called once
7415 for each positive witness in the Rabin-Miller test, not just
7416 occasionally in the inner loop; and the parameters to the
7417 callback function now provide an iteration count for the outer
7418 loop rather than for the current invocation of the inner loop.
7419 DSA_generate_parameters additionally can call the callback
7420 function with an 'iteration count' of -1, meaning that a
7421 candidate has passed the trial division test (when q is generated
7422 from an application-provided seed, trial division is skipped).
7425 *) New function BN_is_prime_fasttest that optionally does trial
7426 division before starting the Rabin-Miller test and has
7427 an additional BN_CTX * argument (whereas BN_is_prime always
7428 has to allocate at least one BN_CTX).
7429 'callback(1, -1, cb_arg)' is called when a number has passed the
7430 trial division stage.
7433 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7437 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7440 *) New function BN_pseudo_rand().
7443 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7444 bignum version of BN_from_montgomery() with the working code from
7445 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7449 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7450 made it impossible to use the same SSL_SESSION data structure in
7451 SSL2 clients in multiple threads.
7454 *) The return value of RAND_load_file() no longer counts bytes obtained
7455 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7456 to seed the PRNG (previously an explicit byte count was required).
7457 [Ulf Möller, Bodo Möller]
7459 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7460 used (char *) instead of (void *) and had casts all over the place.
7463 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7466 *) Retain source code compatibility for BN_prime_checks macro:
7467 BN_is_prime(..., BN_prime_checks, ...) now uses
7468 BN_prime_checks_for_size to determine the appropriate number of
7469 Rabin-Miller iterations.
7472 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7473 DH_CHECK_P_NOT_SAFE_PRIME.
7474 (Check if this is true? OpenPGP calls them "strong".)
7477 *) Merge the functionality of "dh" and "gendh" programs into a new program
7478 "dhparam". The old programs are retained for now but will handle DH keys
7479 (instead of parameters) in future.
7482 *) Make the ciphers, s_server and s_client programs check the return values
7483 when a new cipher list is set.
7486 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7487 ciphers. Before when the 56bit ciphers were enabled the sorting was
7490 The syntax for the cipher sorting has been extended to support sorting by
7491 cipher-strength (using the strength_bits hard coded in the tables).
7492 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7494 Fix a bug in the cipher-command parser: when supplying a cipher command
7495 string with an "undefined" symbol (neither command nor alphanumeric
7496 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7497 an error is flagged.
7499 Due to the strength-sorting extension, the code of the
7500 ssl_create_cipher_list() function was completely rearranged. I hope that
7501 the readability was also increased :-)
7502 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7504 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7505 for the first serial number and places 2 in the serial number file. This
7506 avoids problems when the root CA is created with serial number zero and
7507 the first user certificate has the same issuer name and serial number
7511 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7512 the new code. Add documentation for this stuff.
7515 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7516 X509_*() to X509at_*() on the grounds that they don't handle X509
7517 structures and behave in an analagous way to the X509v3 functions:
7518 they shouldn't be called directly but wrapper functions should be used
7521 So we also now have some wrapper functions that call the X509at functions
7522 when passed certificate requests. (TO DO: similar things can be done with
7523 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7524 things. Some of these need some d2i or i2d and print functionality
7525 because they handle more complex structures.)
7528 *) Add missing #ifndefs that caused missing symbols when building libssl
7529 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7530 NO_RSA in ssl/s2*.c.
7531 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7533 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7534 has a return value which indicates the quality of the random data
7535 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7536 error queue. New function RAND_pseudo_bytes() generates output that is
7537 guaranteed to be unique but not unpredictable. RAND_add is like
7538 RAND_seed, but takes an extra argument for an entropy estimate
7539 (RAND_seed always assumes full entropy).
7542 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7543 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7544 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7545 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7546 false-positive rate of at most 2^-80 for random input.
7549 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7552 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7553 in the 0.9.5 release), this returns the chain
7554 from an X509_CTX structure with a dup of the stack and all
7555 the X509 reference counts upped: so the stack will exist
7556 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7559 Also make SSL_SESSION_print() print out the verify return
7563 *) Add manpage for the pkcs12 command. Also change the default
7564 behaviour so MAC iteration counts are used unless the new
7565 -nomaciter option is used. This improves file security and
7566 only older versions of MSIE (4.0 for example) need it.
7569 *) Honor the no-xxx Configure options when creating .DEF files.
7572 *) Add PKCS#10 attributes to field table: challengePassword,
7573 unstructuredName and unstructuredAddress. These are taken from
7574 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7575 international characters are used.
7577 More changes to X509_ATTRIBUTE code: allow the setting of types
7578 based on strings. Remove the 'loc' parameter when adding
7579 attributes because these will be a SET OF encoding which is sorted
7583 *) Initial changes to the 'req' utility to allow request generation
7584 automation. This will allow an application to just generate a template
7585 file containing all the field values and have req construct the
7588 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7589 used all over the place including certificate requests and PKCS#7
7590 structures. They are currently handled manually where necessary with
7591 some primitive wrappers for PKCS#7. The new functions behave in a
7592 manner analogous to the X509 extension functions: they allow
7593 attributes to be looked up by NID and added.
7595 Later something similar to the X509V3 code would be desirable to
7596 automatically handle the encoding, decoding and printing of the
7597 more complex types. The string types like challengePassword can
7598 be handled by the string table functions.
7600 Also modified the multi byte string table handling. Now there is
7601 a 'global mask' which masks out certain types. The table itself
7602 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7603 is useful when for example there is only one permissible type
7604 (as in countryName) and using the mask might result in no valid
7608 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7609 SSL_get_peer_finished to allow applications to obtain the latest
7610 Finished messages sent to the peer or expected from the peer,
7611 respectively. (SSL_get_peer_finished is usually the Finished message
7612 actually received from the peer, otherwise the protocol will be aborted.)
7614 As the Finished message are message digests of the complete handshake
7615 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7616 be used for external authentication procedures when the authentication
7617 provided by SSL/TLS is not desired or is not enough.
7620 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7621 the host supports BWX extension and if Compaq C is present on the
7622 $PATH. Just exploiting of the BWX extension results in 20-30%
7623 performance kick for some algorithms, e.g. DES and RC4 to mention
7624 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7628 *) Add support for MS "fast SGC". This is arguably a violation of the
7629 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7630 weak crypto and after checking the certificate is SGC a second one
7631 with strong crypto. MS SGC stops the first handshake after receiving
7632 the server certificate message and sends a second client hello. Since
7633 a server will typically do all the time consuming operations before
7634 expecting any further messages from the client (server key exchange
7635 is the most expensive) there is little difference between the two.
7637 To get OpenSSL to support MS SGC we have to permit a second client
7638 hello message after we have sent server done. In addition we have to
7639 reset the MAC if we do get this second client hello.
7642 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7643 if a DER encoded private key is RSA or DSA traditional format. Changed
7644 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7645 format DER encoded private key. Newer code should use PKCS#8 format which
7646 has the key type encoded in the ASN1 structure. Added DER private key
7647 support to pkcs8 application.
7650 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7651 ciphersuites has been selected (as required by the SSL 3/TLS 1
7652 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7653 is set, we interpret this as a request to violate the specification
7654 (the worst that can happen is a handshake failure, and 'correct'
7655 behaviour would result in a handshake failure anyway).
7658 *) In SSL_CTX_add_session, take into account that there might be multiple
7659 SSL_SESSION structures with the same session ID (e.g. when two threads
7660 concurrently obtain them from an external cache).
7661 The internal cache can handle only one SSL_SESSION with a given ID,
7662 so if there's a conflict, we now throw out the old one to achieve
7666 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7667 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7668 some routines that use cipher OIDs: some ciphers do not have OIDs
7669 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7673 *) Simplify the trust setting structure and code. Now we just have
7674 two sequences of OIDs for trusted and rejected settings. These will
7675 typically have values the same as the extended key usage extension
7676 and any application specific purposes.
7678 The trust checking code now has a default behaviour: it will just
7679 check for an object with the same NID as the passed id. Functions can
7680 be provided to override either the default behaviour or the behaviour
7681 for a given id. SSL client, server and email already have functions
7682 in place for compatibility: they check the NID and also return "trusted"
7683 if the certificate is self signed.
7686 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7687 traditional format into an EVP_PKEY structure.
7690 *) Add a password callback function PEM_cb() which either prompts for
7691 a password if usr_data is NULL or otherwise assumes it is a null
7692 terminated password. Allow passwords to be passed on command line
7693 environment or config files in a few more utilities.
7696 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7697 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7698 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7699 Update documentation.
7702 *) Support for ASN1 "NULL" type. This could be handled before by using
7703 ASN1_TYPE but there wasn't any function that would try to read a NULL
7704 and produce an error if it couldn't. For compatibility we also have
7705 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7706 don't allocate anything because they don't need to.
7709 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7711 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7713 *) Rebuild of the memory allocation routines used by OpenSSL code and
7714 possibly others as well. The purpose is to make an interface that
7715 provide hooks so anyone can build a separate set of allocation and
7716 deallocation routines to be used by OpenSSL, for example memory
7717 pool implementations, or something else, which was previously hard
7718 since Malloc(), Realloc() and Free() were defined as macros having
7719 the values malloc, realloc and free, respectively (except for Win32
7720 compilations). The same is provided for memory debugging code.
7721 OpenSSL already comes with functionality to find memory leaks, but
7722 this gives people a chance to debug other memory problems.
7724 With these changes, a new set of functions and macros have appeared:
7726 CRYPTO_set_mem_debug_functions() [F]
7727 CRYPTO_get_mem_debug_functions() [F]
7728 CRYPTO_dbg_set_options() [F]
7729 CRYPTO_dbg_get_options() [F]
7730 CRYPTO_malloc_debug_init() [M]
7732 The memory debug functions are NULL by default, unless the library
7733 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7734 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7735 gives the standard debugging functions that come with OpenSSL) or
7736 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7737 provided by the library user) must be used. When the standard
7738 debugging functions are used, CRYPTO_dbg_set_options can be used to
7739 request additional information:
7740 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7741 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7743 Also, things like CRYPTO_set_mem_functions will always give the
7744 expected result (the new set of functions is used for allocation
7745 and deallocation) at all times, regardless of platform and compiler
7748 To finish it up, some functions that were never use in any other
7749 way than through macros have a new API and new semantic:
7752 CRYPTO_dbg_realloc()
7755 All macros of value have retained their old syntax.
7756 [Richard Levitte and Bodo Moeller]
7758 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7759 ordering of SMIMECapabilities wasn't in "strength order" and there
7760 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7764 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7765 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7766 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7768 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7769 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7770 functionality to handle multipart/signed properly) and a utility
7771 called 'smime' to call all this stuff. This is based on code I
7772 originally wrote for Celo who have kindly allowed it to be
7773 included in OpenSSL.
7776 *) Add variants des_set_key_checked and des_set_key_unchecked of
7777 des_set_key (aka des_key_sched). Global variable des_check_key
7778 decides which of these is called by des_set_key; this way
7779 des_check_key behaves as it always did, but applications and
7780 the library itself, which was buggy for des_check_key == 1,
7781 have a cleaner way to pick the version they need.
7784 *) New function PKCS12_newpass() which changes the password of a
7788 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7789 dynamic mix. In both cases the ids can be used as an index into the
7790 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7791 functions so they accept a list of the field values and the
7792 application doesn't need to directly manipulate the X509_TRUST
7796 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7800 *) Modify the way the V3 extension code looks up extensions. This now
7801 works in a similar way to the object code: we have some "standard"
7802 extensions in a static table which is searched with OBJ_bsearch()
7803 and the application can add dynamic ones if needed. The file
7804 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7805 updated whenever a new extension is added to the core code and kept
7806 in ext_nid order. There is a simple program 'tabtest.c' which checks
7807 this. New extensions are not added too often so this file can readily
7808 be maintained manually.
7810 There are two big advantages in doing things this way. The extensions
7811 can be looked up immediately and no longer need to be "added" using
7812 X509V3_add_standard_extensions(): this function now does nothing.
7813 [Side note: I get *lots* of email saying the extension code doesn't
7814 work because people forget to call this function]
7815 Also no dynamic allocation is done unless new extensions are added:
7816 so if we don't add custom extensions there is no need to call
7817 X509V3_EXT_cleanup().
7820 *) Modify enc utility's salting as follows: make salting the default. Add a
7821 magic header, so unsalted files fail gracefully instead of just decrypting
7822 to garbage. This is because not salting is a big security hole, so people
7823 should be discouraged from doing it.
7826 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7827 digest to be passed on the command line but it only used this
7828 parameter when signing a certificate. Modified so all relevant
7829 operations are affected by the digest parameter including the
7830 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7831 DSA key was used because it didn't fix the digest.
7834 *) Initial certificate chain verify code. Currently tests the untrusted
7835 certificates for consistency with the verify purpose (which is set
7836 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7838 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7839 this is because it will reject chains with invalid extensions whereas
7840 every previous version of OpenSSL and SSLeay made no checks at all.
7842 Trust code: checks the root CA for the relevant trust settings. Trust
7843 settings have an initial value consistent with the verify purpose: e.g.
7844 if the verify purpose is for SSL client use it expects the CA to be
7845 trusted for SSL client use. However the default value can be changed to
7846 permit custom trust settings: one example of this would be to only trust
7847 certificates from a specific "secure" set of CAs.
7849 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7850 which should be used for version portability: especially since the
7851 verify structure is likely to change more often now.
7853 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7854 to set them. If not set then assume SSL clients will verify SSL servers
7857 Two new options to the verify program: -untrusted allows a set of
7858 untrusted certificates to be passed in and -purpose which sets the
7859 intended purpose of the certificate. If a purpose is set then the
7860 new chain verify code is used to check extension consistency.
7863 *) Support for the authority information access extension.
7866 *) Modify RSA and DSA PEM read routines to transparently handle
7867 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7868 public keys in a format compatible with certificate
7869 SubjectPublicKeyInfo structures. Unfortunately there were already
7870 functions called *_PublicKey_* which used various odd formats so
7871 these are retained for compatibility: however the DSA variants were
7872 never in a public release so they have been deleted. Changed dsa/rsa
7873 utilities to handle the new format: note no releases ever handled public
7874 keys so we should be OK.
7876 The primary motivation for this change is to avoid the same fiasco
7877 that dogs private keys: there are several incompatible private key
7878 formats some of which are standard and some OpenSSL specific and
7879 require various evil hacks to allow partial transparent handling and
7880 even then it doesn't work with DER formats. Given the option anything
7881 other than PKCS#8 should be dumped: but the other formats have to
7882 stay in the name of compatibility.
7884 With public keys and the benefit of hindsight one standard format
7885 is used which works with EVP_PKEY, RSA or DSA structures: though
7886 it clearly returns an error if you try to read the wrong kind of key.
7888 Added a -pubkey option to the 'x509' utility to output the public key.
7889 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7890 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7891 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7892 that do the same as the EVP_PKEY_assign_*() except they up the
7893 reference count of the added key (they don't "swallow" the
7897 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7898 CRLs would fail if the file contained no certificates or no CRLs:
7899 added a new function to read in both types and return the number
7900 read: this means that if none are read it will be an error. The
7901 DER versions of the certificate and CRL reader would always fail
7902 because it isn't possible to mix certificates and CRLs in DER format
7903 without choking one or the other routine. Changed this to just read
7904 a certificate: this is the best we can do. Also modified the code
7905 in apps/verify.c to take notice of return codes: it was previously
7906 attempting to read in certificates from NULL pointers and ignoring
7907 any errors: this is one reason why the cert and CRL reader seemed
7908 to work. It doesn't check return codes from the default certificate
7909 routines: these may well fail if the certificates aren't installed.
7912 *) Code to support otherName option in GeneralName.
7915 *) First update to verify code. Change the verify utility
7916 so it warns if it is passed a self signed certificate:
7917 for consistency with the normal behaviour. X509_verify
7918 has been modified to it will now verify a self signed
7919 certificate if *exactly* the same certificate appears
7920 in the store: it was previously impossible to trust a
7921 single self signed certificate. This means that:
7922 openssl verify ss.pem
7923 now gives a warning about a self signed certificate but
7924 openssl verify -CAfile ss.pem ss.pem
7928 *) For servers, store verify_result in SSL_SESSION data structure
7929 (and add it to external session representation).
7930 This is needed when client certificate verifications fails,
7931 but an application-provided verification callback (set by
7932 SSL_CTX_set_cert_verify_callback) allows accepting the session
7933 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7934 but returns 1): When the session is reused, we have to set
7935 ssl->verify_result to the appropriate error code to avoid
7937 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7939 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7940 case in PKCS7_dataInit() where the signed PKCS7 structure
7941 didn't contain any existing data because it was being created.
7942 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7944 *) Add a salt to the key derivation routines in enc.c. This
7945 forms the first 8 bytes of the encrypted file. Also add a
7946 -S option to allow a salt to be input on the command line.
7949 *) New function X509_cmp(). Oddly enough there wasn't a function
7950 to compare two certificates. We do this by working out the SHA1
7951 hash and comparing that. X509_cmp() will be needed by the trust
7955 *) SSL_get1_session() is like SSL_get_session(), but increments
7956 the reference count in the SSL_SESSION returned.
7957 [Geoff Thorpe <geoff@eu.c2.net>]
7959 *) Fix for 'req': it was adding a null to request attributes.
7960 Also change the X509_LOOKUP and X509_INFO code to handle
7961 certificate auxiliary information.
7964 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7968 *) Add the possibility to add extra information to the memory leak
7969 detecting output, to form tracebacks, showing from where each
7970 allocation was originated: CRYPTO_push_info("constant string") adds
7971 the string plus current file name and line number to a per-thread
7972 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7973 is like calling CYRPTO_pop_info() until the stack is empty.
7974 Also updated memory leak detection code to be multi-thread-safe.
7977 *) Add options -text and -noout to pkcs7 utility and delete the
7978 encryption options which never did anything. Update docs.
7981 *) Add options to some of the utilities to allow the pass phrase
7982 to be included on either the command line (not recommended on
7983 OSes like Unix) or read from the environment. Update the
7984 manpages and fix a few bugs.
7987 *) Add a few manpages for some of the openssl commands.
7990 *) Fix the -revoke option in ca. It was freeing up memory twice,
7991 leaking and not finding already revoked certificates.
7994 *) Extensive changes to support certificate auxiliary information.
7995 This involves the use of X509_CERT_AUX structure and X509_AUX
7996 functions. An X509_AUX function such as PEM_read_X509_AUX()
7997 can still read in a certificate file in the usual way but it
7998 will also read in any additional "auxiliary information". By
7999 doing things this way a fair degree of compatibility can be
8000 retained: existing certificates can have this information added
8001 using the new 'x509' options.
8003 Current auxiliary information includes an "alias" and some trust
8004 settings. The trust settings will ultimately be used in enhanced
8005 certificate chain verification routines: currently a certificate
8006 can only be trusted if it is self signed and then it is trusted
8010 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8011 The problem was that one of the replacement routines had not been working
8012 since SSLeay releases. For now the offending routine has been replaced
8013 with non-optimised assembler. Even so, this now gives around 95%
8014 performance improvement for 1024 bit RSA signs.
8017 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8018 handling. Most clients have the effective key size in bits equal to
8019 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8020 A few however don't do this and instead use the size of the decrypted key
8021 to determine the RC2 key length and the AlgorithmIdentifier to determine
8022 the effective key length. In this case the effective key length can still
8023 be 40 bits but the key length can be 168 bits for example. This is fixed
8024 by manually forcing an RC2 key into the EVP_PKEY structure because the
8025 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8026 the key length and effective key length are equal.
8029 *) Add a bunch of functions that should simplify the creation of
8030 X509_NAME structures. Now you should be able to do:
8031 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8032 and have it automatically work out the correct field type and fill in
8033 the structures. The more adventurous can try:
8034 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8035 and it will (hopefully) work out the correct multibyte encoding.
8038 *) Change the 'req' utility to use the new field handling and multibyte
8039 copy routines. Before the DN field creation was handled in an ad hoc
8040 way in req, ca, and x509 which was rather broken and didn't support
8041 BMPStrings or UTF8Strings. Since some software doesn't implement
8042 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8043 using the dirstring_type option. See the new comment in the default
8044 openssl.cnf for more info.
8047 *) Make crypto/rand/md_rand.c more robust:
8048 - Assure unique random numbers after fork().
8049 - Make sure that concurrent threads access the global counter and
8050 md serializably so that we never lose entropy in them
8051 or use exactly the same state in multiple threads.
8052 Access to the large state is not always serializable because
8053 the additional locking could be a performance killer, and
8054 md should be large enough anyway.
8057 *) New file apps/app_rand.c with commonly needed functionality
8058 for handling the random seed file.
8060 Use the random seed file in some applications that previously did not:
8062 dsaparam -genkey (which also ignored its '-rand' option),
8065 x509 (when signing).
8066 Except on systems with /dev/urandom, it is crucial to have a random
8067 seed file at least for key creation, DSA signing, and for DH exchanges;
8068 for RSA signatures we could do without one.
8070 gendh and gendsa (unlike genrsa) used to read only the first byte
8071 of each file listed in the '-rand' option. The function as previously
8072 found in genrsa is now in app_rand.c and is used by all programs
8073 that support '-rand'.
8076 *) In RAND_write_file, use mode 0600 for creating files;
8077 don't just chmod when it may be too late.
8080 *) Report an error from X509_STORE_load_locations
8081 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8084 *) New function ASN1_mbstring_copy() this copies a string in either
8085 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8086 into an ASN1_STRING type. A mask of permissible types is passed
8087 and it chooses the "minimal" type to use or an error if not type
8091 *) Add function equivalents to the various macros in asn1.h. The old
8092 macros are retained with an M_ prefix. Code inside the library can
8093 use the M_ macros. External code (including the openssl utility)
8094 should *NOT* in order to be "shared library friendly".
8097 *) Add various functions that can check a certificate's extensions
8098 to see if it usable for various purposes such as SSL client,
8099 server or S/MIME and CAs of these types. This is currently
8100 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8101 verification. Also added a -purpose flag to x509 utility to
8102 print out all the purposes.
8105 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8109 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8110 for, obtain and decode and extension and obtain its critical flag.
8111 This allows all the necessary extension code to be handled in a
8112 single function call.
8115 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8116 platforms. See crypto/rc4/rc4_enc.c for further details.
8119 *) New -noout option to asn1parse. This causes no output to be produced
8120 its main use is when combined with -strparse and -out to extract data
8121 from a file (which may not be in ASN.1 format).
8124 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8125 when producing the local key id.
8126 [Richard Levitte <levitte@stacken.kth.se>]
8128 *) New option -dhparam in s_server. This allows a DH parameter file to be
8129 stated explicitly. If it is not stated then it tries the first server
8130 certificate file. The previous behaviour hard coded the filename
8134 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8135 a public key to be input or output. For example:
8136 openssl rsa -in key.pem -pubout -out pubkey.pem
8137 Also added necessary DSA public key functions to handle this.
8140 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8141 in the message. This was handled by allowing
8142 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8143 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8145 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8146 to the end of the strings whereas this didn't. This would cause problems
8147 if strings read with d2i_ASN1_bytes() were later modified.
8148 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8150 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8151 data and it contains EOF it will end up returning an error. This is
8152 caused by input 46 bytes long. The cause is due to the way base64
8153 BIOs find the start of base64 encoded data. They do this by trying a
8154 trial decode on each line until they find one that works. When they
8155 do a flag is set and it starts again knowing it can pass all the
8156 data directly through the decoder. Unfortunately it doesn't reset
8157 the context it uses. This means that if EOF is reached an attempt
8158 is made to pass two EOFs through the context and this causes the
8159 resulting error. This can also cause other problems as well. As is
8160 usual with these problems it takes *ages* to find and the fix is
8161 trivial: move one line.
8162 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8164 *) Ugly workaround to get s_client and s_server working under Windows. The
8165 old code wouldn't work because it needed to select() on sockets and the
8166 tty (for keypresses and to see if data could be written). Win32 only
8167 supports select() on sockets so we select() with a 1s timeout on the
8168 sockets and then see if any characters are waiting to be read, if none
8169 are present then we retry, we also assume we can always write data to
8170 the tty. This isn't nice because the code then blocks until we've
8171 received a complete line of data and it is effectively polling the
8172 keyboard at 1s intervals: however it's quite a bit better than not
8173 working at all :-) A dedicated Windows application might handle this
8174 with an event loop for example.
8177 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8178 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8179 will be called when RSA_sign() and RSA_verify() are used. This is useful
8180 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8181 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8182 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8183 This necessitated the support of an extra signature type NID_md5_sha1
8184 for SSL signatures and modifications to the SSL library to use it instead
8185 of calling RSA_public_decrypt() and RSA_private_encrypt().
8188 *) Add new -verify -CAfile and -CApath options to the crl program, these
8189 will lookup a CRL issuers certificate and verify the signature in a
8190 similar way to the verify program. Tidy up the crl program so it
8191 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8192 less strict. It will now permit CRL extensions even if it is not
8193 a V2 CRL: this will allow it to tolerate some broken CRLs.
8196 *) Initialize all non-automatic variables each time one of the openssl
8197 sub-programs is started (this is necessary as they may be started
8198 multiple times from the "OpenSSL>" prompt).
8199 [Lennart Bang, Bodo Moeller]
8201 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8202 removing all other RSA functionality (this is what NO_RSA does). This
8203 is so (for example) those in the US can disable those operations covered
8204 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8208 *) Non-copying interface to BIO pairs.
8209 (still largely untested)
8212 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8213 ASCII string. This was handled independently in various places before.
8216 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8217 UTF8 strings a character at a time.
8220 *) Use client_version from client hello to select the protocol
8221 (s23_srvr.c) and for RSA client key exchange verification
8222 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8225 *) Add various utility functions to handle SPKACs, these were previously
8226 handled by poking round in the structure internals. Added new function
8227 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8228 print, verify and generate SPKACs. Based on an original idea from
8229 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8232 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8235 *) Allow the config file extension section to be overwritten on the
8236 command line. Based on an original idea from Massimiliano Pala
8237 <madwolf@comune.modena.it>. The new option is called -extensions
8238 and can be applied to ca, req and x509. Also -reqexts to override
8239 the request extensions in req and -crlexts to override the crl extensions
8243 *) Add new feature to the SPKAC handling in ca. Now you can include
8244 the same field multiple times by preceding it by "XXXX." for example:
8247 this is the same syntax as used in the req config file.
8250 *) Allow certificate extensions to be added to certificate requests. These
8251 are specified in a 'req_extensions' option of the req section of the
8252 config file. They can be printed out with the -text option to req but
8253 are otherwise ignored at present.
8256 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8257 data read consists of only the final block it would not decrypted because
8258 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8259 A misplaced 'break' also meant the decrypted final block might not be
8260 copied until the next read.
8263 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8264 a few extra parameters to the DH structure: these will be useful if
8265 for example we want the value of 'q' or implement X9.42 DH.
8268 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8269 provides hooks that allow the default DSA functions or functions on a
8270 "per key" basis to be replaced. This allows hardware acceleration and
8271 hardware key storage to be handled without major modification to the
8272 library. Also added low level modexp hooks and CRYPTO_EX structure and
8273 associated functions.
8276 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8277 as "read only": it can't be written to and the buffer it points to will
8278 not be freed. Reading from a read only BIO is much more efficient than
8279 a normal memory BIO. This was added because there are several times when
8280 an area of memory needs to be read from a BIO. The previous method was
8281 to create a memory BIO and write the data to it, this results in two
8282 copies of the data and an O(n^2) reading algorithm. There is a new
8283 function BIO_new_mem_buf() which creates a read only memory BIO from
8284 an area of memory. Also modified the PKCS#7 routines to use read only
8288 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8289 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8290 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8291 but a retry condition occured while trying to read the rest.
8294 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8295 NID_pkcs7_encrypted by default: this was wrong since this should almost
8296 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8297 the encrypted data type: this is a more sensible place to put it and it
8298 allows the PKCS#12 code to be tidied up that duplicated this
8302 *) Changed obj_dat.pl script so it takes its input and output files on
8303 the command line. This should avoid shell escape redirection problems
8307 *) Initial support for certificate extension requests, these are included
8308 in things like Xenroll certificate requests. Included functions to allow
8309 extensions to be obtained and added.
8312 *) -crlf option to s_client and s_server for sending newlines as
8313 CRLF (as required by many protocols).
8316 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8318 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8319 [Ralf S. Engelschall]
8321 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8322 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8324 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8328 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8329 DH parameters/keys (q is lost during that conversion, but the resulting
8330 DH parameters contain its length).
8332 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8333 much faster than DH_generate_parameters (which creates parameters
8334 where p = 2*q + 1), and also the smaller q makes DH computations
8335 much more efficient (160-bit exponentiation instead of 1024-bit
8336 exponentiation); so this provides a convenient way to support DHE
8337 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8338 utter importance to use
8339 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8341 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8342 when such DH parameters are used, because otherwise small subgroup
8343 attacks may become possible!
8346 *) Avoid memory leak in i2d_DHparams.
8349 *) Allow the -k option to be used more than once in the enc program:
8350 this allows the same encrypted message to be read by multiple recipients.
8353 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8354 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8355 it will always use the numerical form of the OID, even if it has a short
8359 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8360 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8361 otherwise bn_mod_exp was called. In the case of hardware keys for example
8362 no private key components need be present and it might store extra data
8363 in the RSA structure, which cannot be accessed from bn_mod_exp.
8364 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8365 private key operations.
8368 *) Added support for SPARC Linux.
8371 *) pem_password_cb function type incompatibly changed from
8372 typedef int pem_password_cb(char *buf, int size, int rwflag);
8374 ....(char *buf, int size, int rwflag, void *userdata);
8375 so that applications can pass data to their callbacks:
8376 The PEM[_ASN1]_{read,write}... functions and macros now take an
8377 additional void * argument, which is just handed through whenever
8378 the password callback is called.
8379 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8381 New function SSL_CTX_set_default_passwd_cb_userdata.
8383 Compatibility note: As many C implementations push function arguments
8384 onto the stack in reverse order, the new library version is likely to
8385 interoperate with programs that have been compiled with the old
8386 pem_password_cb definition (PEM_whatever takes some data that
8387 happens to be on the stack as its last argument, and the callback
8388 just ignores this garbage); but there is no guarantee whatsoever that
8391 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8392 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8393 problems not only on Windows, but also on some Unix platforms.
8394 To avoid problematic command lines, these definitions are now in an
8395 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8396 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8399 *) MIPS III/IV assembler module is reimplemented.
8402 *) More DES library cleanups: remove references to srand/rand and
8403 delete an unused file.
8406 *) Add support for the the free Netwide assembler (NASM) under Win32,
8407 since not many people have MASM (ml) and it can be hard to obtain.
8408 This is currently experimental but it seems to work OK and pass all
8409 the tests. Check out INSTALL.W32 for info.
8412 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8413 without temporary keys kept an extra copy of the server key,
8414 and connections with temporary keys did not free everything in case
8418 *) New function RSA_check_key and new openssl rsa option -check
8419 for verifying the consistency of RSA keys.
8420 [Ulf Moeller, Bodo Moeller]
8422 *) Various changes to make Win32 compile work:
8423 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8424 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8425 comparison" warnings.
8426 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8429 *) Add a debugging option to PKCS#5 v2 key generation function: when
8430 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8431 derived keys are printed to stderr.
8434 *) Copy the flags in ASN1_STRING_dup().
8435 [Roman E. Pavlov <pre@mo.msk.ru>]
8437 *) The x509 application mishandled signing requests containing DSA
8438 keys when the signing key was also DSA and the parameters didn't match.
8440 It was supposed to omit the parameters when they matched the signing key:
8441 the verifying software was then supposed to automatically use the CA's
8442 parameters if they were absent from the end user certificate.
8444 Omitting parameters is no longer recommended. The test was also
8445 the wrong way round! This was probably due to unusual behaviour in
8446 EVP_cmp_parameters() which returns 1 if the parameters match.
8447 This meant that parameters were omitted when they *didn't* match and
8448 the certificate was useless. Certificates signed with 'ca' didn't have
8450 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8452 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8453 The interface is as follows:
8454 Applications can use
8455 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8456 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8457 "off" is now the default.
8458 The library internally uses
8459 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8460 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8461 to disable memory-checking temporarily.
8463 Some inconsistent states that previously were possible (and were
8464 even the default) are now avoided.
8466 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8467 with each memory chunk allocated; this is occasionally more helpful
8468 than just having a counter.
8470 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8472 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8476 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8477 which largely parallels "options", but is for changing API behaviour,
8478 whereas "options" are about protocol behaviour.
8479 Initial "mode" flags are:
8481 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8482 a single record has been written.
8483 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8484 retries use the same buffer location.
8485 (But all of the contents must be
8489 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8492 *) Fix problems with no-hmac etc.
8493 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8495 *) New functions RSA_get_default_method(), RSA_set_method() and
8496 RSA_get_method(). These allows replacement of RSA_METHODs without having
8497 to mess around with the internals of an RSA structure.
8500 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8501 Also really enable memory leak checks in openssl.c and in some
8503 [Chad C. Mulligan, Bodo Moeller]
8505 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8506 up the length of negative integers. This has now been simplified to just
8507 store the length when it is first determined and use it later, rather
8508 than trying to keep track of where data is copied and updating it to
8510 [Steve Henson, reported by Brien Wheeler
8511 <bwheeler@authentica-security.com>]
8513 *) Add a new function PKCS7_signatureVerify. This allows the verification
8514 of a PKCS#7 signature but with the signing certificate passed to the
8515 function itself. This contrasts with PKCS7_dataVerify which assumes the
8516 certificate is present in the PKCS#7 structure. This isn't always the
8517 case: certificates can be omitted from a PKCS#7 structure and be
8518 distributed by "out of band" means (such as a certificate database).
8521 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8522 function prototypes in pem.h, also change util/mkdef.pl to add the
8523 necessary function names.
8526 *) mk1mf.pl (used by Windows builds) did not properly read the
8527 options set by Configure in the top level Makefile, and Configure
8528 was not even able to write more than one option correctly.
8529 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8532 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8533 file to be loaded from a BIO or FILE pointer. The BIO version will
8534 for example allow memory BIOs to contain config info.
8537 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8538 Whoever hopes to achieve shared-library compatibility across versions
8539 must use this, not the compile-time macro.
8540 (Exercise 0.9.4: Which is the minimum library version required by
8542 Note: All this applies only to multi-threaded programs, others don't
8546 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8547 through a BIO pair triggered the default case, i.e.
8548 SSLerr(...,SSL_R_UNKNOWN_STATE).
8551 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8552 can use the SSL library even if none of the specific BIOs is
8556 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8557 for the encoded length.
8558 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8560 *) Add initial documentation of the X509V3 functions.
8563 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8564 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8565 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8566 secure PKCS#8 private key format with a high iteration count.
8569 *) Fix determination of Perl interpreter: A perl or perl5
8570 _directory_ in $PATH was also accepted as the interpreter.
8571 [Ralf S. Engelschall]
8573 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8574 wrong with it but it was very old and did things like calling
8575 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8579 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8580 to use the new extension code.
8583 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8584 with macros. This should make it easier to change their form, add extra
8585 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8589 *) Add to configuration table a new entry that can specify an alternative
8590 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8591 according to Mark Crispin <MRC@Panda.COM>.
8595 *) DES CBC did not update the IV. Weird.
8598 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8599 Changing the behaviour of the former might break existing programs --
8600 where IV updating is needed, des_ncbc_encrypt can be used.
8603 *) When bntest is run from "make test" it drives bc to check its
8604 calculations, as well as internally checking them. If an internal check
8605 fails, it needs to cause bc to give a non-zero result or make test carries
8606 on without noticing the failure. Fixed.
8609 *) DES library cleanups.
8612 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8613 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8614 ciphers. NOTE: although the key derivation function has been verified
8615 against some published test vectors it has not been extensively tested
8616 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8620 *) Instead of "mkdir -p", which is not fully portable, use new
8621 Perl script "util/mkdir-p.pl".
8624 *) Rewrite the way password based encryption (PBE) is handled. It used to
8625 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8626 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8627 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8628 the 'parameter' field of the AlgorithmIdentifier is passed to the
8629 underlying key generation function so it must do its own ASN1 parsing.
8630 This has also changed the EVP_PBE_CipherInit() function which now has a
8631 'parameter' argument instead of literal salt and iteration count values
8632 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8635 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8636 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8637 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8638 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8639 value was just used as a "magic string" and not used directly its
8640 value doesn't matter.
8643 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8647 *) "linux-sparc64" configuration (ultrapenguin).
8648 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8649 "linux-sparc" configuration.
8650 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8652 *) config now generates no-xxx options for missing ciphers.
8655 *) Support the EBCDIC character set (work in progress).
8656 File ebcdic.c not yet included because it has a different license.
8657 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8659 *) Support BS2000/OSD-POSIX.
8660 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8662 *) Make callbacks for key generation use void * instead of char *.
8665 *) Make S/MIME samples compile (not yet tested).
8668 *) Additional typesafe stacks.
8671 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8675 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8677 *) New configuration variant "sco5-gcc".
8679 *) Updated some demos.
8680 [Sean O Riordain, Wade Scholine]
8682 *) Add missing BIO_free at exit of pkcs12 application.
8685 *) Fix memory leak in conf.c.
8688 *) Updates for Win32 to assembler version of MD5.
8691 *) Set #! path to perl in apps/der_chop to where we found it
8692 instead of using a fixed path.
8695 *) SHA library changes for irix64-mips4-cc.
8698 *) Improvements for VMS support.
8702 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8704 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8705 This also avoids the problems with SC4.2 and unpatched SC5.
8706 [Andy Polyakov <appro@fy.chalmers.se>]
8708 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8709 These are required because of the typesafe stack would otherwise break
8710 existing code. If old code used a structure member which used to be STACK
8711 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8712 sk_num or sk_value it would produce an error because the num, data members
8713 are not present in STACK_OF. Now it just produces a warning. sk_set
8714 replaces the old method of assigning a value to sk_value
8715 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8716 that does this will no longer work (and should use sk_set instead) but
8717 this could be regarded as a "questionable" behaviour anyway.
8720 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8721 correctly handle encrypted S/MIME data.
8724 *) Change type of various DES function arguments from des_cblock
8725 (which means, in function argument declarations, pointer to char)
8726 to des_cblock * (meaning pointer to array with 8 char elements),
8727 which allows the compiler to do more typechecking; it was like
8728 that back in SSLeay, but with lots of ugly casts.
8730 Introduce new type const_des_cblock.
8733 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8734 problems: find RecipientInfo structure that matches recipient certificate
8735 and initialise the ASN1 structures properly based on passed cipher.
8738 *) Belatedly make the BN tests actually check the results.
8741 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8742 to and from BNs: it was completely broken. New compilation option
8743 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8744 key elements as negative integers.
8747 *) Reorganize and speed up MD5.
8748 [Andy Polyakov <appro@fy.chalmers.se>]
8751 [Richard Levitte <richard@levitte.org>]
8753 *) New option -out to asn1parse to allow the parsed structure to be
8754 output to a file. This is most useful when combined with the -strparse
8755 option to examine the output of things like OCTET STRINGS.
8758 *) Make SSL library a little more fool-proof by not requiring any longer
8759 that SSL_set_{accept,connect}_state be called before
8760 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8761 in many applications because usually everything *appeared* to work as
8762 intended anyway -- now it really works as intended).
8765 *) Move openssl.cnf out of lib/.
8768 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8769 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8770 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8771 [Ralf S. Engelschall]
8773 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8774 handle PKCS#7 enveloped data properly.
8775 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8777 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8778 copying pointers. The cert_st handling is changed by this in
8779 various ways (and thus what used to be known as ctx->default_cert
8780 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8781 any longer when s->cert does not give us what we need).
8782 ssl_cert_instantiate becomes obsolete by this change.
8783 As soon as we've got the new code right (possibly it already is?),
8784 we have solved a couple of bugs of the earlier code where s->cert
8785 was used as if it could not have been shared with other SSL structures.
8787 Note that using the SSL API in certain dirty ways now will result
8788 in different behaviour than observed with earlier library versions:
8789 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8790 does not influence s as it used to.
8792 In order to clean up things more thoroughly, inside SSL_SESSION
8793 we don't use CERT any longer, but a new structure SESS_CERT
8794 that holds per-session data (if available); currently, this is
8795 the peer's certificate chain and, for clients, the server's certificate
8796 and temporary key. CERT holds only those values that can have
8797 meaningful defaults in an SSL_CTX.
8800 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8801 from the internal representation. Various PKCS#7 fixes: remove some
8802 evil casts and set the enc_dig_alg field properly based on the signing
8806 *) Allow PKCS#12 password to be set from the command line or the
8807 environment. Let 'ca' get its config file name from the environment
8808 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8812 *) Allow certificate policies extension to use an IA5STRING for the
8813 organization field. This is contrary to the PKIX definition but
8814 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8818 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8819 without disallowing inline assembler and the like for non-pedantic builds.
8822 *) Support Borland C++ builder.
8823 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8828 *) SHA-1 cleanups and performance enhancements.
8829 [Andy Polyakov <appro@fy.chalmers.se>]
8831 *) Sparc v8plus assembler for the bignum library.
8832 [Andy Polyakov <appro@fy.chalmers.se>]
8834 *) Accept any -xxx and +xxx compiler options in Configure.
8837 *) Update HPUX configuration.
8840 *) Add missing sk_<type>_unshift() function to safestack.h
8841 [Ralf S. Engelschall]
8843 *) New function SSL_CTX_use_certificate_chain_file that sets the
8844 "extra_cert"s in addition to the certificate. (This makes sense
8845 only for "PEM" format files, as chains as a whole are not
8849 *) Support verify_depth from the SSL API.
8850 x509_vfy.c had what can be considered an off-by-one-error:
8851 Its depth (which was not part of the external interface)
8852 was actually counting the number of certificates in a chain;
8853 now it really counts the depth.
8856 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8857 instead of X509err, which often resulted in confusing error
8858 messages since the error codes are not globally unique
8859 (e.g. an alleged error in ssl3_accept when a certificate
8860 didn't match the private key).
8862 *) New function SSL_CTX_set_session_id_context that allows to set a default
8863 value (so that you don't need SSL_set_session_id_context for each
8864 connection using the SSL_CTX).
8867 *) OAEP decoding bug fix.
8870 *) Support INSTALL_PREFIX for package builders, as proposed by
8874 *) New Configure options "threads" and "no-threads". For systems
8875 where the proper compiler options are known (currently Solaris
8876 and Linux), "threads" is the default.
8879 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8882 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8883 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8884 such as /usr/local/bin.
8887 *) "make linux-shared" to build shared libraries.
8888 [Niels Poppe <niels@netbox.org>]
8890 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8893 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8894 extension adding in x509 utility.
8897 *) Remove NOPROTO sections and error code comments.
8900 *) Partial rewrite of the DEF file generator to now parse the ANSI
8904 *) New Configure options --prefix=DIR and --openssldir=DIR.
8907 *) Complete rewrite of the error code script(s). It is all now handled
8908 by one script at the top level which handles error code gathering,
8909 header rewriting and C source file generation. It should be much better
8910 than the old method: it now uses a modified version of Ulf's parser to
8911 read the ANSI prototypes in all header files (thus the old K&R definitions
8912 aren't needed for error creation any more) and do a better job of
8913 translating function codes into names. The old 'ASN1 error code imbedded
8914 in a comment' is no longer necessary and it doesn't use .err files which
8915 have now been deleted. Also the error code call doesn't have to appear all
8916 on one line (which resulted in some large lines...).
8919 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8922 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8923 0 (which usually indicates a closed connection), but continue reading.
8926 *) Fix some race conditions.
8929 *) Add support for CRL distribution points extension. Add Certificate
8930 Policies and CRL distribution points documentation.
8933 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8936 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8937 8 of keying material. Merlin has also confirmed interop with this fix
8938 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8939 [Merlin Hughes <merlin@baltimore.ie>]
8941 *) Fix lots of warnings.
8942 [Richard Levitte <levitte@stacken.kth.se>]
8944 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8945 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8946 [Richard Levitte <levitte@stacken.kth.se>]
8948 *) Fix problems with sizeof(long) == 8.
8949 [Andy Polyakov <appro@fy.chalmers.se>]
8951 *) Change functions to ANSI C.
8954 *) Fix typos in error codes.
8955 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8957 *) Remove defunct assembler files from Configure.
8960 *) SPARC v8 assembler BIGNUM implementation.
8961 [Andy Polyakov <appro@fy.chalmers.se>]
8963 *) Support for Certificate Policies extension: both print and set.
8964 Various additions to support the r2i method this uses.
8967 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8968 return a const string when you are expecting an allocated buffer.
8971 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8972 types DirectoryString and DisplayText.
8975 *) Add code to allow r2i extensions to access the configuration database,
8976 add an LHASH database driver and add several ctx helper functions.
8979 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8980 fail when they extended the size of a BIGNUM.
8983 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8984 support typesafe stack.
8987 *) Fix typo in SSL_[gs]et_options().
8988 [Nils Frostberg <nils@medcom.se>]
8990 *) Delete various functions and files that belonged to the (now obsolete)
8991 old X509V3 handling code.
8994 *) New Configure option "rsaref".
8997 *) Don't auto-generate pem.h.
9000 *) Introduce type-safe ASN.1 SETs.
9003 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9004 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9006 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9007 that links with OpenSSL (well at least cause lots of warnings), but fear
9008 not: the conversion is trivial, and it eliminates loads of evil casts. A
9009 few STACKed things have been converted already. Feel free to convert more.
9010 In the fullness of time, I'll do away with the STACK type altogether.
9013 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9014 specified in <certfile> by updating the entry in the index.txt file.
9015 This way one no longer has to edit the index.txt file manually for
9016 revoking a certificate. The -revoke option does the gory details now.
9017 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9019 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9020 `-text' option at all and this way the `-noout -text' combination was
9021 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9022 [Ralf S. Engelschall]
9024 *) Make sure a corresponding plain text error message exists for the
9025 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9026 verify callback function determined that a certificate was revoked.
9027 [Ralf S. Engelschall]
9029 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9030 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9031 all available cipers including rc5, which was forgotten until now.
9032 In order to let the testing shell script know which algorithms
9033 are available, a new (up to now undocumented) command
9034 "openssl list-cipher-commands" is used.
9037 *) Bugfix: s_client occasionally would sleep in select() when
9038 it should have checked SSL_pending() first.
9041 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9042 the raw DSA values prior to ASN.1 encoding.
9045 *) Tweaks to Configure
9046 [Niels Poppe <niels@netbox.org>]
9048 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9052 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9055 *) New config option to avoid instructions that are illegal on the 80386.
9056 The default code is faster, but requires at least a 486.
9059 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9060 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9061 same as SSL2_VERSION anyway.
9064 *) New "-showcerts" option for s_client.
9067 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9068 application. Various cleanups and fixes.
9071 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9072 modify error routines to work internally. Add error codes and PBE init
9073 to library startup routines.
9076 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9077 packing functions to asn1 and evp. Changed function names and error
9078 codes along the way.
9081 *) PKCS12 integration: and so it begins... First of several patches to
9082 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9083 objects to objects.h
9086 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9087 and display support for Thawte strong extranet extension.
9090 *) Add LinuxPPC support.
9091 [Jeff Dubrule <igor@pobox.org>]
9093 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9094 bn_div_words in alpha.s.
9095 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9097 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9098 OAEP isn't supported when OpenSSL is built with RSAref.
9099 [Ulf Moeller <ulf@fitug.de>]
9101 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9102 so they no longer are missing under -DNOPROTO.
9103 [Soren S. Jorvang <soren@t.dk>]
9106 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9108 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9109 doesn't work when the session is reused. Coming soon!
9112 *) Fix a security hole, that allows sessions to be reused in the wrong
9113 context thus bypassing client cert protection! All software that uses
9114 client certs and session caches in multiple contexts NEEDS PATCHING to
9115 allow session reuse! A fuller solution is in the works.
9116 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9118 *) Some more source tree cleanups (removed obsolete files
9119 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9120 permission on "config" script to be executable) and a fix for the INSTALL
9122 [Ulf Moeller <ulf@fitug.de>]
9124 *) Remove some legacy and erroneous uses of malloc, free instead of
9126 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9128 *) Make rsa_oaep_test return non-zero on error.
9129 [Ulf Moeller <ulf@fitug.de>]
9131 *) Add support for native Solaris shared libraries. Configure
9132 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9133 if someone would make that last step automatic.
9134 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9136 *) ctx_size was not built with the right compiler during "make links". Fixed.
9139 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9140 except NULL ciphers". This means the default cipher list will no longer
9141 enable NULL ciphers. They need to be specifically enabled e.g. with
9142 the string "DEFAULT:eNULL".
9145 *) Fix to RSA private encryption routines: if p < q then it would
9146 occasionally produce an invalid result. This will only happen with
9147 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9150 *) Be less restrictive and allow also `perl util/perlpath.pl
9151 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9152 because this way one can also use an interpreter named `perl5' (which is
9153 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9154 installed as `perl').
9155 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9157 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9158 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9160 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9161 advapi32.lib to Win32 build and change the pem test comparision
9162 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9163 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9164 and crypto/des/ede_cbcm_enc.c.
9167 *) DES quad checksum was broken on big-endian architectures. Fixed.
9170 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9171 Win32 test batch file so it (might) work again. The Win32 test batch file
9172 is horrible: I feel ill....
9175 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9176 in e_os.h. Audit of header files to check ANSI and non ANSI
9177 sections: 10 functions were absent from non ANSI section and not exported
9178 from Windows DLLs. Fixed up libeay.num for new functions.
9181 *) Make `openssl version' output lines consistent.
9182 [Ralf S. Engelschall]
9184 *) Fix Win32 symbol export lists for BIO functions: Added
9185 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9186 to ms/libeay{16,32}.def.
9187 [Ralf S. Engelschall]
9189 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9190 fine under Unix and passes some trivial tests I've now added. But the
9191 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9192 added to make sure no one expects that this stuff really works in the
9193 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9194 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9196 [Ralf S. Engelschall]
9198 *) Fix the generation of two part addresses in perl.
9199 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9201 *) Add config entry for Linux on MIPS.
9202 [John Tobey <jtobey@channel1.com>]
9204 *) Make links whenever Configure is run, unless we are on Windoze.
9207 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9208 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9212 *) Add a useful kludge to allow package maintainers to specify compiler and
9213 other platforms details on the command line without having to patch the
9214 Configure script everytime: One now can use ``perl Configure
9215 <id>:<details>'', i.e. platform ids are allowed to have details appended
9216 to them (seperated by colons). This is treated as there would be a static
9217 pre-configured entry in Configure's %table under key <id> with value
9218 <details> and ``perl Configure <id>'' is called. So, when you want to
9219 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9220 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9221 now, which overrides the FreeBSD-elf entry on-the-fly.
9222 [Ralf S. Engelschall]
9224 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9227 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9228 on the `perl Configure ...' command line. This way one can compile
9229 OpenSSL libraries with Position Independent Code (PIC) which is needed
9230 for linking it into DSOs.
9231 [Ralf S. Engelschall]
9233 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9237 *) Cleaned up the LICENSE document: The official contact for any license
9238 questions now is the OpenSSL core team under openssl-core@openssl.org.
9239 And add a paragraph about the dual-license situation to make sure people
9240 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9241 to the OpenSSL toolkit.
9242 [Ralf S. Engelschall]
9244 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9245 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9246 Additonally cleaned up the `make links' target: Remove unnecessary
9247 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9248 to speed processing and no longer clutter the display with confusing
9249 stuff. Instead only the actually done links are displayed.
9250 [Ralf S. Engelschall]
9252 *) Permit null encryption ciphersuites, used for authentication only. It used
9253 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9254 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9258 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9259 signed attributes when verifying signatures (this would break them),
9260 the detached data encoding was wrong and public keys obtained using
9261 X509_get_pubkey() weren't freed.
9264 *) Add text documentation for the BUFFER functions. Also added a work around
9265 to a Win95 console bug. This was triggered by the password read stuff: the
9266 last character typed gets carried over to the next fread(). If you were
9267 generating a new cert request using 'req' for example then the last
9268 character of the passphrase would be CR which would then enter the first
9272 *) Added the new `Includes OpenSSL Cryptography Software' button as
9273 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9274 button and can be used by applications based on OpenSSL to show the
9275 relationship to the OpenSSL project.
9276 [Ralf S. Engelschall]
9278 *) Remove confusing variables in function signatures in files
9279 ssl/ssl_lib.c and ssl/ssl.h.
9280 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9282 *) Don't install bss_file.c under PREFIX/include/
9283 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9285 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9286 functions that return function pointers and has support for NT specific
9287 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9288 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9289 unsigned to signed types: this was killing the Win32 compile.
9292 *) Add new certificate file to stack functions,
9293 SSL_add_dir_cert_subjects_to_stack() and
9294 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9295 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9296 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9297 This means that Apache-SSL and similar packages don't have to mess around
9298 to add as many CAs as they want to the preferred list.
9301 *) Experiment with doxygen documentation. Currently only partially applied to
9303 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9304 openssl.doxy as the configuration file.
9307 *) Get rid of remaining C++-style comments which strict C compilers hate.
9308 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9310 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9311 compiled in by default: it has problems with large keys.
9314 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9315 DH private keys and/or callback functions which directly correspond to
9316 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9317 is needed for applications which have to configure certificates on a
9318 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9320 For the RSA certificate situation is makes no difference, but
9321 for the DSA certificate situation this fixes the "no shared cipher"
9322 problem where the OpenSSL cipher selection procedure failed because the
9323 temporary keys were not overtaken from the context and the API provided
9324 no way to reconfigure them.
9325 The new functions now let applications reconfigure the stuff and they
9326 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9327 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9328 non-public-API function ssl_cert_instantiate() is used as a helper
9329 function and also to reduce code redundancy inside ssl_rsa.c.
9330 [Ralf S. Engelschall]
9332 *) Move s_server -dcert and -dkey options out of the undocumented feature
9333 area because they are useful for the DSA situation and should be
9334 recognized by the users.
9335 [Ralf S. Engelschall]
9337 *) Fix the cipher decision scheme for export ciphers: the export bits are
9338 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9339 SSL_EXP_MASK. So, the original variable has to be used instead of the
9340 already masked variable.
9341 [Richard Levitte <levitte@stacken.kth.se>]
9343 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9344 [Richard Levitte <levitte@stacken.kth.se>]
9346 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9347 from `int' to `unsigned int' because it's a length and initialized by
9348 EVP_DigestFinal() which expects an `unsigned int *'.
9349 [Richard Levitte <levitte@stacken.kth.se>]
9351 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9352 script. Instead use the usual Shell->Perl transition trick.
9353 [Ralf S. Engelschall]
9355 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9356 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9357 -noout -modulus' as it's already the case for `openssl rsa -noout
9358 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9359 currently the public key is printed (a decision which was already done by
9360 `openssl dsa -modulus' in the past) which serves a similar purpose.
9361 Additionally the NO_RSA no longer completely removes the whole -modulus
9362 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9364 [Ralf S. Engelschall]
9366 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9367 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9368 [Arne Ansper <arne@ats.cyber.ee>]
9370 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9371 to be added. Now both 'req' and 'ca' can use new objects defined in the
9375 *) Add cool BIO that does syslog (or event log on NT).
9376 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9378 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9379 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9380 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9381 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9384 *) Add preliminary config info for new extension code.
9387 *) Make RSA_NO_PADDING really use no padding.
9388 [Ulf Moeller <ulf@fitug.de>]
9390 *) Generate errors when private/public key check is done.
9393 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9394 for some CRL extensions and new objects added.
9397 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9398 key usage extension and fuller support for authority key id.
9401 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9402 padding method for RSA, which is recommended for new applications in PKCS
9403 #1 v2.0 (RFC 2437, October 1998).
9404 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9405 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9406 against Bleichbacher's attack on RSA.
9407 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9410 *) Updates to the new SSL compression code
9411 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9413 *) Fix so that the version number in the master secret, when passed
9414 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9415 (because the server will not accept higher), that the version number
9416 is 0x03,0x01, not 0x03,0x00
9417 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9419 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9420 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9421 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9424 *) Support for RAW extensions where an arbitrary extension can be
9425 created by including its DER encoding. See apps/openssl.cnf for
9429 *) Make sure latest Perl versions don't interpret some generated C array
9430 code as Perl array code in the crypto/err/err_genc.pl script.
9431 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9433 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9434 not many people have the assembler. Various Win32 compilation fixes and
9435 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9439 *) Modify configure script 'Configure' to automatically create crypto/date.h
9440 file under Win32 and also build pem.h from pem.org. New script
9441 util/mkfiles.pl to create the MINFO file on environments that can't do a
9442 'make files': perl util/mkfiles.pl >MINFO should work.
9445 *) Major rework of DES function declarations, in the pursuit of correctness
9446 and purity. As a result, many evil casts evaporated, and some weirdness,
9447 too. You may find this causes warnings in your code. Zapping your evil
9448 casts will probably fix them. Mostly.
9451 *) Fix for a typo in asn1.h. Bug fix to object creation script
9452 obj_dat.pl. It considered a zero in an object definition to mean
9453 "end of object": none of the objects in objects.h have any zeros
9454 so it wasn't spotted.
9455 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9457 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9458 Masking (CBCM). In the absence of test vectors, the best I have been able
9459 to do is check that the decrypt undoes the encrypt, so far. Send me test
9460 vectors if you have them.
9463 *) Correct calculation of key length for export ciphers (too much space was
9464 allocated for null ciphers). This has not been tested!
9467 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9468 message is now correct (it understands "crypto" and "ssl" on its
9469 command line). There is also now an "update" option. This will update
9470 the util/ssleay.num and util/libeay.num files with any new functions.
9472 perl util/mkdef.pl crypto ssl update
9473 it will update them.
9476 *) Overhauled the Perl interface (perl/*):
9477 - ported BN stuff to OpenSSL's different BN library
9478 - made the perl/ source tree CVS-aware
9479 - renamed the package from SSLeay to OpenSSL (the files still contain
9480 their history because I've copied them in the repository)
9481 - removed obsolete files (the test scripts will be replaced
9482 by better Test::Harness variants in the future)
9483 [Ralf S. Engelschall]
9485 *) First cut for a very conservative source tree cleanup:
9486 1. merge various obsolete readme texts into doc/ssleay.txt
9487 where we collect the old documents and readme texts.
9488 2. remove the first part of files where I'm already sure that we no
9489 longer need them because of three reasons: either they are just temporary
9490 files which were left by Eric or they are preserved original files where
9491 I've verified that the diff is also available in the CVS via "cvs diff
9492 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9493 the crypto/md/ stuff).
9494 [Ralf S. Engelschall]
9496 *) More extension code. Incomplete support for subject and issuer alt
9497 name, issuer and authority key id. Change the i2v function parameters
9498 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9499 what that's for :-) Fix to ASN1 macro which messed up
9500 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9503 *) Preliminary support for ENUMERATED type. This is largely copied from the
9507 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9508 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9510 *) Make sure `make rehash' target really finds the `openssl' program.
9511 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9513 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9514 like to hear about it if this slows down other processors.
9517 *) Add CygWin32 platform information to Configure script.
9518 [Alan Batie <batie@aahz.jf.intel.com>]
9520 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9521 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9523 *) New program nseq to manipulate netscape certificate sequences
9526 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9530 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9531 but the BN code had some problems that would cause failures when
9532 doing certificate verification and some other functions.
9533 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9535 *) Add ASN1 and PEM code to support netscape certificate sequences.
9538 *) Add ASN1 and PEM code to support netscape certificate sequences.
9541 *) Add several PKIX and private extended key usage OIDs.
9544 *) Modify the 'ca' program to handle the new extension code. Modify
9545 openssl.cnf for new extension format, add comments.
9548 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9549 and add a sample to openssl.cnf so req -x509 now adds appropriate
9553 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9554 error code, add initial support to X509_print() and x509 application.
9557 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9558 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9559 stuff is currently isolated and isn't even compiled yet.
9562 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9563 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9564 Removed the versions check from X509 routines when loading extensions:
9565 this allows certain broken certificates that don't set the version
9566 properly to be processed.
9569 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9570 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9571 can still be regenerated with "make depend".
9574 *) Spelling mistake in C version of CAST-128.
9575 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9577 *) Changes to the error generation code. The perl script err-code.pl
9578 now reads in the old error codes and retains the old numbers, only
9579 adding new ones if necessary. It also only changes the .err files if new
9580 codes are added. The makefiles have been modified to only insert errors
9581 when needed (to avoid needlessly modifying header files). This is done
9582 by only inserting errors if the .err file is newer than the auto generated
9583 C file. To rebuild all the error codes from scratch (the old behaviour)
9584 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9585 or delete all the .err files.
9588 *) CAST-128 was incorrectly implemented for short keys. The C version has
9589 been fixed, but is untested. The assembler versions are also fixed, but
9590 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9591 to regenerate it if needed.
9592 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9593 Hagino <itojun@kame.net>]
9595 *) File was opened incorrectly in randfile.c.
9596 [Ulf Möller <ulf@fitug.de>]
9598 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9599 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9600 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9601 al: it's just almost always a UTCTime. Note this patch adds new error
9602 codes so do a "make errors" if there are problems.
9605 *) Correct Linux 1 recognition in config.
9606 [Ulf Möller <ulf@fitug.de>]
9608 *) Remove pointless MD5 hash when using DSA keys in ca.
9609 [Anonymous <nobody@replay.com>]
9611 *) Generate an error if given an empty string as a cert directory. Also
9612 generate an error if handed NULL (previously returned 0 to indicate an
9613 error, but didn't set one).
9614 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9616 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9619 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9620 parameters. This was causing a warning which killed off the Win32 compile.
9623 *) Remove C++ style comments from crypto/bn/bn_local.h.
9624 [Neil Costigan <neil.costigan@celocom.com>]
9626 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9627 based on a text string, looking up short and long names and finally
9628 "dot" format. The "dot" format stuff didn't work. Added new function
9629 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9630 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9631 OID is not part of the table.
9634 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9635 X509_LOOKUP_by_alias().
9638 *) Sort openssl functions by name.
9641 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9642 encryption from sample DSA keys (in case anyone is interested the password
9646 *) Make _all_ *_free functions accept a NULL pointer.
9647 [Frans Heymans <fheymans@isaserver.be>]
9649 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9651 [Anonymous <nobody@replay.com>]
9653 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9654 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9656 *) Don't blow it for numeric -newkey arguments to apps/req.
9657 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9659 *) Temp key "for export" tests were wrong in s3_srvr.c.
9660 [Anonymous <nobody@replay.com>]
9662 *) Add prototype for temp key callback functions
9663 SSL_CTX_set_tmp_{rsa,dh}_callback().
9666 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9667 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9670 *) X509_name_add_entry() freed the wrong thing after an error.
9671 [Arne Ansper <arne@ats.cyber.ee>]
9673 *) rsa_eay.c would attempt to free a NULL context.
9674 [Arne Ansper <arne@ats.cyber.ee>]
9676 *) BIO_s_socket() had a broken should_retry() on Windoze.
9677 [Arne Ansper <arne@ats.cyber.ee>]
9679 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9680 [Arne Ansper <arne@ats.cyber.ee>]
9682 *) Make sure the already existing X509_STORE->depth variable is initialized
9683 in X509_STORE_new(), but document the fact that this variable is still
9684 unused in the certificate verification process.
9685 [Ralf S. Engelschall]
9687 *) Fix the various library and apps files to free up pkeys obtained from
9688 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9691 *) Fix reference counting in X509_PUBKEY_get(). This makes
9692 demos/maurice/example2.c work, amongst others, probably.
9693 [Steve Henson and Ben Laurie]
9695 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9696 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9697 are no longer created. This way we have a single and consistent command
9698 line interface `openssl <command>', similar to `cvs <command>'.
9699 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9701 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9702 BIT STRING wrapper always have zero unused bits.
9705 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9708 *) Make the top-level INSTALL documentation easier to understand.
9711 *) Makefiles updated to exit if an error occurs in a sub-directory
9712 make (including if user presses ^C) [Paul Sutton]
9714 *) Make Montgomery context stuff explicit in RSA data structure.
9717 *) Fix build order of pem and err to allow for generated pem.h.
9720 *) Fix renumbering bug in X509_NAME_delete_entry().
9723 *) Enhanced the err-ins.pl script so it makes the error library number
9724 global and can add a library name. This is needed for external ASN1 and
9725 other error libraries.
9728 *) Fixed sk_insert which never worked properly.
9731 *) Fix ASN1 macros so they can handle indefinite length construted
9732 EXPLICIT tags. Some non standard certificates use these: they can now
9736 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9737 into a single doc/ssleay.txt bundle. This way the information is still
9738 preserved but no longer messes up this directory. Now it's new room for
9739 the new set of documenation files.
9740 [Ralf S. Engelschall]
9742 *) SETs were incorrectly DER encoded. This was a major pain, because they
9743 shared code with SEQUENCEs, which aren't coded the same. This means that
9744 almost everything to do with SETs or SEQUENCEs has either changed name or
9745 number of arguments.
9746 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9748 *) Fix test data to work with the above.
9751 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9752 was already fixed by Eric for 0.9.1 it seems.
9753 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9755 *) Autodetect FreeBSD3.
9758 *) Fix various bugs in Configure. This affects the following platforms:
9762 unixware-2.0-pentium
9766 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9767 before they are needed.
9770 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9774 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9776 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9777 changed SSLeay to OpenSSL in version strings.
9778 [Ralf S. Engelschall]
9780 *) Some fixups to the top-level documents.
9783 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9784 because the symlink to include/ was missing.
9785 [Ralf S. Engelschall]
9787 *) Incorporated the popular no-RSA/DSA-only patches
9788 which allow to compile a RSA-free SSLeay.
9789 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9791 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9792 when "ssleay" is still not found.
9793 [Ralf S. Engelschall]
9795 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9796 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9798 *) Updated the README file.
9799 [Ralf S. Engelschall]
9801 *) Added various .cvsignore files in the CVS repository subdirs
9802 to make a "cvs update" really silent.
9803 [Ralf S. Engelschall]
9805 *) Recompiled the error-definition header files and added
9806 missing symbols to the Win32 linker tables.
9807 [Ralf S. Engelschall]
9809 *) Cleaned up the top-level documents;
9810 o new files: CHANGES and LICENSE
9811 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9812 o merged COPYRIGHT into LICENSE
9813 o removed obsolete TODO file
9814 o renamed MICROSOFT to INSTALL.W32
9815 [Ralf S. Engelschall]
9817 *) Removed dummy files from the 0.9.1b source tree:
9818 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9819 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9820 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9821 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9822 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9823 [Ralf S. Engelschall]
9825 *) Added various platform portability fixes.
9828 *) The Genesis of the OpenSSL rpject:
9829 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9830 Young and Tim J. Hudson created while they were working for C2Net until
9832 [The OpenSSL Project]
9835 Changes between 0.9.0b and 0.9.1b [not released]
9837 *) Updated a few CA certificates under certs/
9840 *) Changed some BIGNUM api stuff.
9843 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9844 DGUX x86, Linux Alpha, etc.
9847 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9848 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9852 *) Add -strparse option to asn1pars program which parses nested
9854 [Dr Stephen Henson <shenson@bigfoot.com>]
9856 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9859 *) DSA fix for "ca" program.
9862 *) Added "-genkey" option to "dsaparam" program.
9865 *) Added RIPE MD160 (rmd160) message digest.
9868 *) Added -a (all) option to "ssleay version" command.
9871 *) Added PLATFORM define which is the id given to Configure.
9874 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9877 *) Extended the ASN.1 parser routines.
9880 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9883 *) Added a BN_CTX to the BN library.
9886 *) Fixed the weak key values in DES library
9889 *) Changed API in EVP library for cipher aliases.
9892 *) Added support for RC2/64bit cipher.
9895 *) Converted the lhash library to the crypto/mem.c functions.
9898 *) Added more recognized ASN.1 object ids.
9901 *) Added more RSA padding checks for SSL/TLS.
9904 *) Added BIO proxy/filter functionality.
9907 *) Added extra_certs to SSL_CTX which can be used
9908 send extra CA certificates to the client in the CA cert chain sending
9909 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9912 *) Now Fortezza is denied in the authentication phase because
9913 this is key exchange mechanism is not supported by SSLeay at all.
9916 *) Additional PKCS1 checks.
9919 *) Support the string "TLSv1" for all TLS v1 ciphers.
9922 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9923 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9926 *) Fixed a few memory leaks.
9929 *) Fixed various code and comment typos.
9932 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9933 bytes sent in the client random.
9934 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob