5 Changes between 0.9.8j and 0.9.8k [xx XXX xxxx]
7 *) New -hex option for openssl rand.
10 *) Print out UTF8String and NumericString when parsing ASN1.
13 *) Support NumericString type for name components.
16 *) Allow CC in the environment to override the automatically chosen
17 compiler. Note that nothing is done to ensure flags work with the
21 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
23 *) Properly check EVP_VerifyFinal() and similar return values
25 [Ben Laurie, Bodo Moeller, Google Security Team]
27 *) Enable TLS extensions by default.
30 *) Allow the CHIL engine to be loaded, whether the application is
31 multithreaded or not. (This does not release the developer from the
32 obligation to set up the dynamic locking callbacks.)
33 [Sander Temme <sander@temme.net>]
35 *) Use correct exit code if there is an error in dgst command.
36 [Steve Henson; problem pointed out by Roland Dirlewanger]
38 *) Tweak Configure so that you need to say "experimental-jpake" to enable
39 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
42 *) Add experimental JPAKE support, including demo authentication in
43 s_client and s_server.
46 *) Set the comparison function in v3_addr_canonize().
47 [Rob Austein <sra@hactrn.net>]
49 *) Add support for XMPP STARTTLS in s_client.
50 [Philip Paeps <philip@freebsd.org>]
52 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
53 to ensure that even with this option, only ciphersuites in the
54 server's preference list will be accepted. (Note that the option
55 applies only when resuming a session, so the earlier behavior was
56 just about the algorithm choice for symmetric cryptography.)
59 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
61 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
62 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
65 *) The fix in 0.9.8c that supposedly got rid of unsafe
66 double-checked locking was incomplete for RSA blinding,
67 addressing just one layer of what turns out to have been
68 doubly unsafe triple-checked locking.
70 So now fix this for real by retiring the MONT_HELPER macro
71 in crypto/rsa/rsa_eay.c.
73 [Bodo Moeller; problem pointed out by Marius Schilder]
75 *) Various precautionary measures:
77 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
79 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
80 (NB: This would require knowledge of the secret session ticket key
81 to exploit, in which case you'd be SOL either way.)
83 - Change bn_nist.c so that it will properly handle input BIGNUMs
84 outside the expected range.
86 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
89 [Neel Mehta, Bodo Moeller]
91 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
92 the load fails. Useful for distros.
93 [Ben Laurie and the FreeBSD team]
95 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
98 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
101 *) Expand ENGINE to support engine supplied SSL client certificate functions.
103 This work was sponsored by Logica.
106 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
107 keystores. Support for SSL/TLS client authentication too.
108 Not compiled unless enable-capieng specified to Configure.
110 This work was sponsored by Logica.
113 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
114 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
115 attribute creation routines such as certifcate requests and PKCS#12
119 Changes between 0.9.8g and 0.9.8h [28 May 2008]
121 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
122 handshake which could lead to a cilent crash as found using the
123 Codenomicon TLS test suite (CVE-2008-1672)
124 [Steve Henson, Mark Cox]
126 *) Fix double free in TLS server name extensions which could lead to
127 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
130 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
132 Clear the error queue to ensure that error entries left from
133 older function calls do not interfere with the correct operation.
134 [Lutz Jaenicke, Erik de Castro Lopo]
136 *) Remove root CA certificates of commercial CAs:
138 The OpenSSL project does not recommend any specific CA and does not
139 have any policy with respect to including or excluding any CA.
140 Therefore it does not make any sense to ship an arbitrary selection
141 of root CA certificates with the OpenSSL software.
144 *) RSA OAEP patches to fix two separate invalid memory reads.
145 The first one involves inputs when 'lzero' is greater than
146 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
147 before the beginning of from). The second one involves inputs where
148 the 'db' section contains nothing but zeroes (there is a one-byte
149 invalid read after the end of 'db').
150 [Ivan Nestlerode <inestlerode@us.ibm.com>]
152 *) Partial backport from 0.9.9-dev:
154 Introduce bn_mul_mont (dedicated Montgomery multiplication
155 procedure) as a candidate for BIGNUM assembler implementation.
156 While 0.9.9-dev uses assembler for various architectures, only
157 x86_64 is available by default here in the 0.9.8 branch, and
158 32-bit x86 is available through a compile-time setting.
160 To try the 32-bit x86 assembler implementation, use Configure
161 option "enable-montasm" (which exists only for this backport).
163 As "enable-montasm" for 32-bit x86 disclaims code stability
164 anyway, in this constellation we activate additional code
165 backported from 0.9.9-dev for further performance improvements,
166 namely BN_from_montgomery_word. (To enable this otherwise,
167 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
169 [Andy Polyakov (backport partially by Bodo Moeller)]
171 *) Add TLS session ticket callback. This allows an application to set
172 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
173 values. This is useful for key rollover for example where several key
174 sets may exist with different names.
177 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
178 This was broken until now in 0.9.8 releases, such that the only way
179 a registered ENGINE could be used (assuming it initialises
180 successfully on the host) was to explicitly set it as the default
181 for the relevant algorithms. This is in contradiction with 0.9.7
182 behaviour and the documentation. With this fix, when an ENGINE is
183 registered into a given algorithm's table of implementations, the
184 'uptodate' flag is reset so that auto-discovery will be used next
185 time a new context for that algorithm attempts to select an
187 [Ian Lister (tweaked by Geoff Thorpe)]
189 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
190 implemention in the following ways:
192 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
195 Lack of BER streaming support means one pass streaming processing is
196 only supported if data is detached: setting the streaming flag is
197 ignored for embedded content.
199 CMS support is disabled by default and must be explicitly enabled
200 with the enable-cms configuration option.
203 *) Update the GMP engine glue to do direct copies between BIGNUM and
204 mpz_t when openssl and GMP use the same limb size. Otherwise the
205 existing "conversion via a text string export" trick is still used.
206 [Paul Sheer <paulsheer@gmail.com>]
208 *) Zlib compression BIO. This is a filter BIO which compressed and
209 uncompresses any data passed through it.
212 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
213 RFC3394 compatible AES key wrapping.
216 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
217 sets string data without copying. X509_ALGOR_set0() and
218 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
219 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
220 from an X509_ATTRIBUTE structure optionally checking it occurs only
221 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
225 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
226 to get the expected BN_FLG_CONSTTIME behavior.
227 [Bodo Moeller (Google)]
231 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
232 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
233 - added some more tests to do_tests.pl
234 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
235 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
236 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
237 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
238 - various changes to netware.pl to enable gcc-cross builds on Win32
240 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
241 - various changes to fix missing prototype warnings
242 - fixed x86nasm.pl to create correct asm files for NASM COFF output
243 - added AES, WHIRLPOOL and CPUID assembler code to build files
244 - added missing AES assembler make rules to mk1mf.pl
245 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
246 [Guenter Knauf <eflash@gmx.net>]
248 *) Implement certificate status request TLS extension defined in RFC3546.
249 A client can set the appropriate parameters and receive the encoded
250 OCSP response via a callback. A server can query the supplied parameters
251 and set the encoded OCSP response in the callback. Add simplified examples
252 to s_client and s_server.
255 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
258 + Binary incompatibility of ssl_ctx_st structure
259 + DTLS interoperation with non-compliant servers
260 + Don't call get_session_cb() without proposed session
261 + Fix ia64 assembler code
262 [Andy Polyakov, Steve Henson]
264 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
266 *) DTLS Handshake overhaul. There were longstanding issues with
267 OpenSSL DTLS implementation, which were making it impossible for
268 RFC 4347 compliant client to communicate with OpenSSL server.
269 Unfortunately just fixing these incompatibilities would "cut off"
270 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
271 server keeps tolerating non RFC compliant syntax. The opposite is
272 not true, 0.9.8f client can not communicate with earlier server.
273 This update even addresses CVE-2007-4995.
276 *) Changes to avoid need for function casts in OpenSSL: some compilers
277 (gcc 4.2 and later) reject their use.
278 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
281 *) Add RFC4507 support to OpenSSL. This includes the corrections in
282 RFC4507bis. The encrypted ticket format is an encrypted encoded
283 SSL_SESSION structure, that way new session features are automatically
286 If a client application caches session in an SSL_SESSION structure
287 support is transparent because tickets are now stored in the encoded
290 The SSL_CTX structure automatically generates keys for ticket
291 protection in servers so again support should be possible
292 with no application modification.
294 If a client or server wishes to disable RFC4507 support then the option
295 SSL_OP_NO_TICKET can be set.
297 Add a TLS extension debugging callback to allow the contents of any client
298 or server extensions to be examined.
300 This work was sponsored by Google.
303 *) Add initial support for TLS extensions, specifically for the server_name
304 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
305 have new members for a host name. The SSL data structure has an
306 additional member SSL_CTX *initial_ctx so that new sessions can be
307 stored in that context to allow for session resumption, even after the
308 SSL has been switched to a new SSL_CTX in reaction to a client's
309 server_name extension.
311 New functions (subject to change):
314 SSL_get_servername_type()
317 New CTRL codes and macros (subject to change):
319 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
320 - SSL_CTX_set_tlsext_servername_callback()
321 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
322 - SSL_CTX_set_tlsext_servername_arg()
323 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
325 openssl s_client has a new '-servername ...' option.
327 openssl s_server has new options '-servername_host ...', '-cert2 ...',
328 '-key2 ...', '-servername_fatal' (subject to change). This allows
329 testing the HostName extension for a specific single host name ('-cert'
330 and '-key' remain fallbacks for handshakes without HostName
331 negotiation). If the unrecogninzed_name alert has to be sent, this by
332 default is a warning; it becomes fatal with the '-servername_fatal'
335 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
337 *) Add AES and SSE2 assembly language support to VC++ build.
340 *) Mitigate attack on final subtraction in Montgomery reduction.
343 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
344 (which previously caused an internal error).
347 *) Squeeze another 10% out of IGE mode when in != out.
350 *) AES IGE mode speedup.
351 [Dean Gaudet (Google)]
353 *) Add the Korean symmetric 128-bit cipher SEED (see
354 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
355 add SEED ciphersuites from RFC 4162:
357 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
358 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
359 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
360 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
362 To minimize changes between patchlevels in the OpenSSL 0.9.8
363 series, SEED remains excluded from compilation unless OpenSSL
364 is configured with 'enable-seed'.
367 *) Mitigate branch prediction attacks, which can be practical if a
368 single processor is shared, allowing a spy process to extract
369 information. For detailed background information, see
370 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
371 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
372 and Necessary Software Countermeasures"). The core of the change
373 are new versions BN_div_no_branch() and
374 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
375 respectively, which are slower, but avoid the security-relevant
376 conditional branches. These are automatically called by BN_div()
377 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
378 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
379 remove a conditional branch.
381 BN_FLG_CONSTTIME is the new name for the previous
382 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
383 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
384 in the exponent causes BN_mod_exp_mont() to use the alternative
385 implementation in BN_mod_exp_mont_consttime().) The old name
386 remains as a deprecated alias.
388 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
389 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
390 constant-time implementations for more than just exponentiation.
391 Here too the old name is kept as a deprecated alias.
393 BN_BLINDING_new() will now use BN_dup() for the modulus so that
394 the BN_BLINDING structure gets an independent copy of the
395 modulus. This means that the previous "BIGNUM *m" argument to
396 BN_BLINDING_new() and to BN_BLINDING_create_param() now
397 essentially becomes "const BIGNUM *m", although we can't actually
398 change this in the header file before 0.9.9. It allows
399 RSA_setup_blinding() to use BN_with_flags() on the modulus to
400 enable BN_FLG_CONSTTIME.
402 [Matthew D Wood (Intel Corp)]
404 *) In the SSL/TLS server implementation, be strict about session ID
405 context matching (which matters if an application uses a single
406 external cache for different purposes). Previously,
407 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
408 set. This did ensure strict client verification, but meant that,
409 with applications using a single external cache for quite
410 different requirements, clients could circumvent ciphersuite
411 restrictions for a given session ID context by starting a session
412 in a different context.
415 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
416 a ciphersuite string such as "DEFAULT:RSA" cannot enable
417 authentication-only ciphersuites.
420 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
421 not complete and could lead to a possible single byte overflow
422 (CVE-2007-5135) [Ben Laurie]
424 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
426 *) Since AES128 and AES256 (and similarly Camellia128 and
427 Camellia256) share a single mask bit in the logic of
428 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
429 kludge to work properly if AES128 is available and AES256 isn't
430 (or if Camellia128 is available and Camellia256 isn't).
433 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
434 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
435 When a point or a seed is encoded in a BIT STRING, we need to
436 prevent the removal of trailing zero bits to get the proper DER
437 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
438 of a NamedBitList, for which trailing 0 bits need to be removed.)
441 *) Have SSL/TLS server implementation tolerate "mismatched" record
442 protocol version while receiving ClientHello even if the
443 ClientHello is fragmented. (The server can't insist on the
444 particular protocol version it has chosen before the ServerHello
445 message has informed the client about his choice.)
448 *) Add RFC 3779 support.
449 [Rob Austein for ARIN, Ben Laurie]
451 *) Load error codes if they are not already present instead of using a
452 static variable. This allows them to be cleanly unloaded and reloaded.
453 Improve header file function name parsing.
456 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
457 or CAPABILITY handshake as required by RFCs.
460 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
462 *) Introduce limits to prevent malicious keys being able to
463 cause a denial of service. (CVE-2006-2940)
464 [Steve Henson, Bodo Moeller]
466 *) Fix ASN.1 parsing of certain invalid structures that can result
467 in a denial of service. (CVE-2006-2937) [Steve Henson]
469 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
470 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
472 *) Fix SSL client code which could crash if connecting to a
473 malicious SSLv2 server. (CVE-2006-4343)
474 [Tavis Ormandy and Will Drewry, Google Security Team]
476 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
477 match only those. Before that, "AES256-SHA" would be interpreted
478 as a pattern and match "AES128-SHA" too (since AES128-SHA got
479 the same strength classification in 0.9.7h) as we currently only
480 have a single AES bit in the ciphersuite description bitmap.
481 That change, however, also applied to ciphersuite strings such as
482 "RC4-MD5" that intentionally matched multiple ciphersuites --
483 namely, SSL 2.0 ciphersuites in addition to the more common ones
484 from SSL 3.0/TLS 1.0.
486 So we change the selection algorithm again: Naming an explicit
487 ciphersuite selects this one ciphersuite, and any other similar
488 ciphersuite (same bitmap) from *other* protocol versions.
489 Thus, "RC4-MD5" again will properly select both the SSL 2.0
490 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
492 Since SSL 2.0 does not have any ciphersuites for which the
493 128/256 bit distinction would be relevant, this works for now.
494 The proper fix will be to use different bits for AES128 and
495 AES256, which would have avoided the problems from the beginning;
496 however, bits are scarce, so we can only do this in a new release
497 (not just a patchlevel) when we can change the SSL_CIPHER
498 definition to split the single 'unsigned long mask' bitmap into
499 multiple values to extend the available space.
503 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
505 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
506 (CVE-2006-4339) [Ben Laurie and Google Security Team]
508 *) Add AES IGE and biIGE modes.
511 *) Change the Unix randomness entropy gathering to use poll() when
512 possible instead of select(), since the latter has some
513 undesirable limitations.
514 [Darryl Miles via Richard Levitte and Bodo Moeller]
516 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
517 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
518 cannot be implicitly activated as part of, e.g., the "AES" alias.
519 However, please upgrade to OpenSSL 0.9.9[-dev] for
520 non-experimental use of the ECC ciphersuites to get TLS extension
521 support, which is required for curve and point format negotiation
522 to avoid potential handshake problems.
525 *) Disable rogue ciphersuites:
527 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
528 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
529 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
531 The latter two were purportedly from
532 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
535 Also deactivate the remaining ciphersuites from
536 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
537 unofficial, and the ID has long expired.
540 *) Fix RSA blinding Heisenbug (problems sometimes occured on
541 dual-core machines) and other potential thread-safety issues.
544 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
545 versions), which is now available for royalty-free use
546 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
547 Also, add Camellia TLS ciphersuites from RFC 4132.
549 To minimize changes between patchlevels in the OpenSSL 0.9.8
550 series, Camellia remains excluded from compilation unless OpenSSL
551 is configured with 'enable-camellia'.
554 *) Disable the padding bug check when compression is in use. The padding
555 bug check assumes the first packet is of even length, this is not
556 necessarily true if compresssion is enabled and can result in false
557 positives causing handshake failure. The actual bug test is ancient
558 code so it is hoped that implementations will either have fixed it by
559 now or any which still have the bug do not support compression.
562 Changes between 0.9.8a and 0.9.8b [04 May 2006]
564 *) When applying a cipher rule check to see if string match is an explicit
565 cipher suite and only match that one cipher suite if it is.
568 *) Link in manifests for VC++ if needed.
569 [Austin Ziegler <halostatue@gmail.com>]
571 *) Update support for ECC-based TLS ciphersuites according to
572 draft-ietf-tls-ecc-12.txt with proposed changes (but without
573 TLS extensions, which are supported starting with the 0.9.9
574 branch, not in the OpenSSL 0.9.8 branch).
577 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
578 opaque EVP_CIPHER_CTX handling.
581 *) Fixes and enhancements to zlib compression code. We now only use
582 "zlib1.dll" and use the default __cdecl calling convention on Win32
583 to conform with the standards mentioned here:
584 http://www.zlib.net/DLL_FAQ.txt
585 Static zlib linking now works on Windows and the new --with-zlib-include
586 --with-zlib-lib options to Configure can be used to supply the location
587 of the headers and library. Gracefully handle case where zlib library
591 *) Several fixes and enhancements to the OID generation code. The old code
592 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
593 handle numbers larger than ULONG_MAX, truncated printing and had a
594 non standard OBJ_obj2txt() behaviour.
597 *) Add support for building of engines under engine/ as shared libraries
598 under VC++ build system.
601 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
602 Hopefully, we will not see any false combination of paths any more.
605 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
607 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
608 (part of SSL_OP_ALL). This option used to disable the
609 countermeasure against man-in-the-middle protocol-version
610 rollback in the SSL 2.0 server implementation, which is a bad
611 idea. (CVE-2005-2969)
613 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
614 for Information Security, National Institute of Advanced Industrial
615 Science and Technology [AIST], Japan)]
617 *) Add two function to clear and return the verify parameter flags.
620 *) Keep cipherlists sorted in the source instead of sorting them at
621 runtime, thus removing the need for a lock.
624 *) Avoid some small subgroup attacks in Diffie-Hellman.
625 [Nick Mathewson and Ben Laurie]
627 *) Add functions for well-known primes.
630 *) Extended Windows CE support.
631 [Satoshi Nakamura and Andy Polyakov]
633 *) Initialize SSL_METHOD structures at compile time instead of during
634 runtime, thus removing the need for a lock.
637 *) Make PKCS7_decrypt() work even if no certificate is supplied by
638 attempting to decrypt each encrypted key in turn. Add support to
642 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
644 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
647 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
650 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
651 key into the same file any more.
654 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
657 *) Add -utf8 command line and config file option to 'ca'.
658 [Stefan <stf@udoma.org]
660 *) Removed the macro des_crypt(), as it seems to conflict with some
661 libraries. Use DES_crypt().
664 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
665 involves renaming the source and generated shared-libs for
666 both. The engines will accept the corrected or legacy ids
667 ('ncipher' and '4758_cca' respectively) when binding. NB,
668 this only applies when building 'shared'.
669 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
671 *) Add attribute functions to EVP_PKEY structure. Modify
672 PKCS12_create() to recognize a CSP name attribute and
673 use it. Make -CSP option work again in pkcs12 utility.
676 *) Add new functionality to the bn blinding code:
677 - automatic re-creation of the BN_BLINDING parameters after
678 a fixed number of uses (currently 32)
679 - add new function for parameter creation
680 - introduce flags to control the update behaviour of the
681 BN_BLINDING parameters
682 - hide BN_BLINDING structure
683 Add a second BN_BLINDING slot to the RSA structure to improve
684 performance when a single RSA object is shared among several
688 *) Add support for DTLS.
689 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
691 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
692 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
695 *) Remove buggy and incompletet DH cert support from
696 ssl/ssl_rsa.c and ssl/s3_both.c
699 *) Use SHA-1 instead of MD5 as the default digest algorithm for
700 the apps/openssl applications.
703 *) Compile clean with "-Wall -Wmissing-prototypes
704 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
705 DEBUG_SAFESTACK must also be set.
708 *) Change ./Configure so that certain algorithms can be disabled by default.
709 The new counterpiece to "no-xxx" is "enable-xxx".
711 The patented RC5 and MDC2 algorithms will now be disabled unless
712 "enable-rc5" and "enable-mdc2", respectively, are specified.
714 (IDEA remains enabled despite being patented. This is because IDEA
715 is frequently required for interoperability, and there is no license
716 fee for non-commercial use. As before, "no-idea" can be used to
717 avoid this algorithm.)
721 *) Add processing of proxy certificates (see RFC 3820). This work was
722 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
723 EGEE (Enabling Grids for E-science in Europe).
726 *) RC4 performance overhaul on modern architectures/implementations, such
727 as Intel P4, IA-64 and AMD64.
730 *) New utility extract-section.pl. This can be used specify an alternative
731 section number in a pod file instead of having to treat each file as
732 a separate case in Makefile. This can be done by adding two lines to the
735 =for comment openssl_section:XXX
737 The blank line is mandatory.
741 *) New arguments -certform, -keyform and -pass for s_client and s_server
742 to allow alternative format key and certificate files and passphrase
746 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
747 update associated structures and add various utility functions.
749 Add new policy related verify parameters, include policy checking in
750 standard verify code. Enhance 'smime' application with extra parameters
751 to support policy checking and print out.
754 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
755 Nehemiah processors. These extensions support AES encryption in hardware
756 as well as RNG (though RNG support is currently disabled).
757 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
759 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
762 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
763 [Andy Polyakov and a number of other people]
765 *) Improved PowerPC platform support. Most notably BIGNUM assembler
766 implementation contributed by IBM.
767 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
769 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
770 exponent rather than 'unsigned long'. There is a corresponding change to
771 the new 'rsa_keygen' element of the RSA_METHOD structure.
772 [Jelte Jansen, Geoff Thorpe]
774 *) Functionality for creating the initial serial number file is now
775 moved from CA.pl to the 'ca' utility with a new option -create_serial.
777 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
778 number file to 1, which is bound to cause problems. To avoid
779 the problems while respecting compatibility between different 0.9.7
780 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
781 CA.pl for serial number initialization. With the new release 0.9.8,
782 we can fix the problem directly in the 'ca' utility.)
785 *) Reduced header interdepencies by declaring more opaque objects in
786 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
787 give fewer recursive includes, which could break lazy source code - so
788 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
789 developers should define this symbol when building and using openssl to
790 ensure they track the recommended behaviour, interfaces, [etc], but
791 backwards-compatible behaviour prevails when this isn't defined.
794 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
797 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
798 This will generate a random key of the appropriate length based on the
799 cipher context. The EVP_CIPHER can provide its own random key generation
800 routine to support keys of a specific form. This is used in the des and
801 3des routines to generate a key of the correct parity. Update S/MIME
802 code to use new functions and hence generate correct parity DES keys.
803 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
804 valid (weak or incorrect parity).
807 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
808 as looking them up. This is useful when the verified structure may contain
809 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
810 present unless the new PKCS7_NO_CRL flag is asserted.
813 *) Extend ASN1 oid configuration module. It now additionally accepts the
816 shortName = some long name, 1.2.3.4
819 *) Reimplemented the BN_CTX implementation. There is now no more static
820 limitation on the number of variables it can handle nor the depth of the
821 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
822 information can now expand as required, and rather than having a single
823 static array of bignums, BN_CTX now uses a linked-list of such arrays
824 allowing it to expand on demand whilst maintaining the usefulness of
828 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
829 to allow all RSA operations to function using a single BN_CTX.
832 *) Preliminary support for certificate policy evaluation and checking. This
833 is initially intended to pass the tests outlined in "Conformance Testing
834 of Relying Party Client Certificate Path Processing Logic" v1.07.
837 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
838 remained unused and not that useful. A variety of other little bignum
839 tweaks and fixes have also been made continuing on from the audit (see
843 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
844 associated ASN1, EVP and SSL functions and old ASN1 macros.
847 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
848 and this should never fail. So the return value from the use of
849 BN_set_word() (which can fail due to needless expansion) is now deprecated;
850 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
853 *) BN_CTX_get() should return zero-valued bignums, providing the same
854 initialised value as BN_new().
855 [Geoff Thorpe, suggested by Ulf Möller]
857 *) Support for inhibitAnyPolicy certificate extension.
860 *) An audit of the BIGNUM code is underway, for which debugging code is
861 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
862 is considered valid when processing BIGNUMs, and causes execution to
863 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
864 further steps are taken to deliberately pollute unused data in BIGNUM
865 structures to try and expose faulty code further on. For now, openssl will
866 (in its default mode of operation) continue to tolerate the inconsistent
867 forms that it has tolerated in the past, but authors and packagers should
868 consider trying openssl and their own applications when compiled with
869 these debugging symbols defined. It will help highlight potential bugs in
870 their own code, and will improve the test coverage for OpenSSL itself. At
871 some point, these tighter rules will become openssl's default to improve
872 maintainability, though the assert()s and other overheads will remain only
873 in debugging configurations. See bn.h for more details.
874 [Geoff Thorpe, Nils Larsch, Ulf Möller]
876 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
877 that can only be obtained through BN_CTX_new() (which implicitly
878 initialises it). The presence of this function only made it possible
879 to overwrite an existing structure (and cause memory leaks).
882 *) Because of the callback-based approach for implementing LHASH as a
883 template type, lh_insert() adds opaque objects to hash-tables and
884 lh_doall() or lh_doall_arg() are typically used with a destructor callback
885 to clean up those corresponding objects before destroying the hash table
886 (and losing the object pointers). So some over-zealous constifications in
887 LHASH have been relaxed so that lh_insert() does not take (nor store) the
888 objects as "const" and the lh_doall[_arg] callback wrappers are not
889 prototyped to have "const" restrictions on the object pointers they are
890 given (and so aren't required to cast them away any more).
893 *) The tmdiff.h API was so ugly and minimal that our own timing utility
894 (speed) prefers to use its own implementation. The two implementations
895 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
896 its object type properly exposed (MS_TM) instead of casting to/from "char
897 *". This may still change yet if someone realises MS_TM and "ms_time_***"
898 aren't necessarily the greatest nomenclatures - but this is what was used
899 internally to the implementation so I've used that for now.
902 *) Ensure that deprecated functions do not get compiled when
903 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
904 the self-tests were still using deprecated key-generation functions so
905 these have been updated also.
908 *) Reorganise PKCS#7 code to separate the digest location functionality
909 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
910 New function PKCS7_set_digest() to set the digest type for PKCS#7
911 digestedData type. Add additional code to correctly generate the
912 digestedData type and add support for this type in PKCS7 initialization
916 *) New function PKCS7_set0_type_other() this initializes a PKCS7
917 structure of type "other".
920 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
921 sure the loop does correctly stop and breaking ("division by zero")
922 modulus operations are not performed. The (pre-generated) prime
923 table crypto/bn/bn_prime.h was already correct, but it could not be
924 re-generated on some platforms because of the "division by zero"
925 situation in the script.
926 [Ralf S. Engelschall]
928 *) Update support for ECC-based TLS ciphersuites according to
929 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
930 SHA-1 now is only used for "small" curves (where the
931 representation of a field element takes up to 24 bytes); for
932 larger curves, the field element resulting from ECDH is directly
933 used as premaster secret.
934 [Douglas Stebila (Sun Microsystems Laboratories)]
936 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
937 curve secp160r1 to the tests.
938 [Douglas Stebila (Sun Microsystems Laboratories)]
940 *) Add the possibility to load symbols globally with DSO.
941 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
943 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
944 control of the error stack.
947 *) Add support for STORE in ENGINE.
950 *) Add the STORE type. The intention is to provide a common interface
951 to certificate and key stores, be they simple file-based stores, or
952 HSM-type store, or LDAP stores, or...
953 NOTE: The code is currently UNTESTED and isn't really used anywhere.
956 *) Add a generic structure called OPENSSL_ITEM. This can be used to
957 pass a list of arguments to any function as well as provide a way
958 for a function to pass data back to the caller.
961 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
962 works like BUF_strdup() but can be used to duplicate a portion of
963 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
967 *) Add the function sk_find_ex() which works like sk_find(), but will
968 return an index to an element even if an exact match couldn't be
969 found. The index is guaranteed to point at the element where the
970 searched-for key would be inserted to preserve sorting order.
973 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
974 takes an extra flags argument for optional functionality. Currently,
975 the following flags are defined:
977 OBJ_BSEARCH_VALUE_ON_NOMATCH
978 This one gets OBJ_bsearch_ex() to return a pointer to the first
979 element where the comparing function returns a negative or zero
982 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
983 This one gets OBJ_bsearch_ex() to return a pointer to the first
984 element where the comparing function returns zero. This is useful
985 if there are more than one element where the comparing function
989 *) Make it possible to create self-signed certificates with 'openssl ca'
990 in such a way that the self-signed certificate becomes part of the
991 CA database and uses the same mechanisms for serial number generation
992 as all other certificate signing. The new flag '-selfsign' enables
993 this functionality. Adapt CA.sh and CA.pl.in.
996 *) Add functionality to check the public key of a certificate request
997 against a given private. This is useful to check that a certificate
998 request can be signed by that key (self-signing).
1001 *) Make it possible to have multiple active certificates with the same
1002 subject in the CA index file. This is done only if the keyword
1003 'unique_subject' is set to 'no' in the main CA section (default
1004 if 'CA_default') of the configuration file. The value is saved
1005 with the database itself in a separate index attribute file,
1006 named like the index file with '.attr' appended to the name.
1009 *) Generate muti valued AVAs using '+' notation in config files for
1013 *) Support for nameConstraints certificate extension.
1016 *) Support for policyConstraints certificate extension.
1019 *) Support for policyMappings certificate extension.
1022 *) Make sure the default DSA_METHOD implementation only uses its
1023 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1024 and change its own handlers to be NULL so as to remove unnecessary
1025 indirection. This lets alternative implementations fallback to the
1026 default implementation more easily.
1029 *) Support for directoryName in GeneralName related extensions
1033 *) Make it possible to link applications using Makefile.shared.
1034 Make that possible even when linking against static libraries!
1037 *) Support for single pass processing for S/MIME signing. This now
1038 means that S/MIME signing can be done from a pipe, in addition
1039 cleartext signing (multipart/signed type) is effectively streaming
1040 and the signed data does not need to be all held in memory.
1042 This is done with a new flag PKCS7_STREAM. When this flag is set
1043 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1044 is done after the data is output (and digests calculated) in
1045 SMIME_write_PKCS7().
1048 *) Add full support for -rpath/-R, both in shared libraries and
1049 applications, at least on the platforms where it's known how
1053 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1054 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1055 will now compute a table of multiples of the generator that
1056 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1057 faster (notably in the case of a single point multiplication,
1058 scalar * generator).
1059 [Nils Larsch, Bodo Moeller]
1061 *) IPv6 support for certificate extensions. The various extensions
1062 which use the IP:a.b.c.d can now take IPv6 addresses using the
1063 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1067 *) Added an ENGINE that implements RSA by performing private key
1068 exponentiations with the GMP library. The conversions to and from
1069 GMP's mpz_t format aren't optimised nor are any montgomery forms
1070 cached, and on x86 it appears OpenSSL's own performance has caught up.
1071 However there are likely to be other architectures where GMP could
1072 provide a boost. This ENGINE is not built in by default, but it can be
1073 specified at Configure time and should be accompanied by the necessary
1074 linker additions, eg;
1075 ./config -DOPENSSL_USE_GMP -lgmp
1078 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1079 testing availability of engines with "-t" - the old behaviour is
1080 produced by increasing the feature's verbosity with "-tt".
1083 *) ECDSA routines: under certain error conditions uninitialized BN objects
1084 could be freed. Solution: make sure initialization is performed early
1085 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1089 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1090 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1091 software implementations. For DSA and DH, parameter generation can
1092 also be overriden by providing the appropriate method callbacks.
1095 *) Change the "progress" mechanism used in key-generation and
1096 primality testing to functions that take a new BN_GENCB pointer in
1097 place of callback/argument pairs. The new API functions have "_ex"
1098 postfixes and the older functions are reimplemented as wrappers for
1099 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1100 declarations of the old functions to help (graceful) attempts to
1101 migrate to the new functions. Also, the new key-generation API
1102 functions operate on a caller-supplied key-structure and return
1103 success/failure rather than returning a key or NULL - this is to
1104 help make "keygen" another member function of RSA_METHOD etc.
1106 Example for using the new callback interface:
1108 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1112 BN_GENCB_set(&my_cb, my_callback, my_arg);
1114 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1115 /* For the meaning of a, b in calls to my_callback(), see the
1116 * documentation of the function that calls the callback.
1117 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1118 * my_callback should return 1 if it wants BN_is_prime_ex()
1119 * to continue, or 0 to stop.
1124 *) Change the ZLIB compression method to be stateful, and make it
1125 available to TLS with the number defined in
1126 draft-ietf-tls-compression-04.txt.
1129 *) Add the ASN.1 structures and functions for CertificatePair, which
1130 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1132 CertificatePair ::= SEQUENCE {
1133 forward [0] Certificate OPTIONAL,
1134 reverse [1] Certificate OPTIONAL,
1135 -- at least one of the pair shall be present -- }
1137 Also implement the PEM functions to read and write certificate
1138 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1140 This needed to be defined, mostly for the sake of the LDAP
1141 attribute crossCertificatePair, but may prove useful elsewhere as
1145 *) Make it possible to inhibit symlinking of shared libraries in
1146 Makefile.shared, for Cygwin's sake.
1149 *) Extend the BIGNUM API by creating a function
1150 void BN_set_negative(BIGNUM *a, int neg);
1151 and a macro that behave like
1152 int BN_is_negative(const BIGNUM *a);
1154 to avoid the need to access 'a->neg' directly in applications.
1157 *) Implement fast modular reduction for pseudo-Mersenne primes
1158 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1159 EC_GROUP_new_curve_GFp() will now automatically use this
1161 [Nils Larsch <nla@trustcenter.de>]
1163 *) Add new lock type (CRYPTO_LOCK_BN).
1166 *) Change the ENGINE framework to automatically load engines
1167 dynamically from specific directories unless they could be
1168 found to already be built in or loaded. Move all the
1169 current engines except for the cryptodev one to a new
1171 The engines in engines/ are built as shared libraries if
1172 the "shared" options was given to ./Configure or ./config.
1173 Otherwise, they are inserted in libcrypto.a.
1174 /usr/local/ssl/engines is the default directory for dynamic
1175 engines, but that can be overriden at configure time through
1176 the usual use of --prefix and/or --openssldir, and at run
1177 time with the environment variable OPENSSL_ENGINES.
1178 [Geoff Thorpe and Richard Levitte]
1180 *) Add Makefile.shared, a helper makefile to build shared
1181 libraries. Addapt Makefile.org.
1184 *) Add version info to Win32 DLLs.
1185 [Peter 'Luna' Runestig" <peter@runestig.com>]
1187 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1188 can be added using this API to created arbitrary PKCS#12
1189 files while avoiding the low level API.
1191 New options to PKCS12_create(), key or cert can be NULL and
1192 will then be omitted from the output file. The encryption
1193 algorithm NIDs can be set to -1 for no encryption, the mac
1194 iteration count can be set to 0 to omit the mac.
1196 Enhance pkcs12 utility by making the -nokeys and -nocerts
1197 options work when creating a PKCS#12 file. New option -nomac
1198 to omit the mac, NONE can be set for an encryption algorithm.
1199 New code is modified to use the enhanced PKCS12_create()
1200 instead of the low level API.
1203 *) Extend ASN1 encoder to support indefinite length constructed
1204 encoding. This can output sequences tags and octet strings in
1205 this form. Modify pk7_asn1.c to support indefinite length
1206 encoding. This is experimental and needs additional code to
1207 be useful, such as an ASN1 bio and some enhanced streaming
1210 Extend template encode functionality so that tagging is passed
1211 down to the template encoder.
1214 *) Let 'openssl req' fail if an argument to '-newkey' is not
1215 recognized instead of using RSA as a default.
1218 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1219 As these are not official, they are not included in "ALL";
1220 the "ECCdraft" ciphersuite group alias can be used to select them.
1221 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1223 *) Add ECDH engine support.
1224 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1226 *) Add ECDH in new directory crypto/ecdh/.
1227 [Douglas Stebila (Sun Microsystems Laboratories)]
1229 *) Let BN_rand_range() abort with an error after 100 iterations
1230 without success (which indicates a broken PRNG).
1233 *) Change BN_mod_sqrt() so that it verifies that the input value
1234 is really the square of the return value. (Previously,
1235 BN_mod_sqrt would show GIGO behaviour.)
1238 *) Add named elliptic curves over binary fields from X9.62, SECG,
1239 and WAP/WTLS; add OIDs that were still missing.
1241 [Sheueling Chang Shantz and Douglas Stebila
1242 (Sun Microsystems Laboratories)]
1244 *) Extend the EC library for elliptic curves over binary fields
1245 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1248 EC_GF2m_simple_method
1252 EC_GROUP_new_curve_GF2m
1253 EC_GROUP_set_curve_GF2m
1254 EC_GROUP_get_curve_GF2m
1255 EC_POINT_set_affine_coordinates_GF2m
1256 EC_POINT_get_affine_coordinates_GF2m
1257 EC_POINT_set_compressed_coordinates_GF2m
1259 Point compression for binary fields is disabled by default for
1260 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1263 As binary polynomials are represented as BIGNUMs, various members
1264 of the EC_GROUP and EC_POINT data structures can be shared
1265 between the implementations for prime fields and binary fields;
1266 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1267 are essentially identical to their ..._GFp counterparts.
1268 (For simplicity, the '..._GFp' prefix has been dropped from
1269 various internal method names.)
1271 An internal 'field_div' method (similar to 'field_mul' and
1272 'field_sqr') has been added; this is used only for binary fields.
1274 [Sheueling Chang Shantz and Douglas Stebila
1275 (Sun Microsystems Laboratories)]
1277 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1278 through methods ('mul', 'precompute_mult').
1280 The generic implementations (now internally called 'ec_wNAF_mul'
1281 and 'ec_wNAF_precomputed_mult') remain the default if these
1282 methods are undefined.
1284 [Sheueling Chang Shantz and Douglas Stebila
1285 (Sun Microsystems Laboratories)]
1287 *) New function EC_GROUP_get_degree, which is defined through
1288 EC_METHOD. For curves over prime fields, this returns the bit
1289 length of the modulus.
1291 [Sheueling Chang Shantz and Douglas Stebila
1292 (Sun Microsystems Laboratories)]
1294 *) New functions EC_GROUP_dup, EC_POINT_dup.
1295 (These simply call ..._new and ..._copy).
1297 [Sheueling Chang Shantz and Douglas Stebila
1298 (Sun Microsystems Laboratories)]
1300 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1301 Polynomials are represented as BIGNUMs (where the sign bit is not
1302 used) in the following functions [macros]:
1305 BN_GF2m_sub [= BN_GF2m_add]
1306 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1307 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1308 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1310 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1311 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1312 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1313 BN_GF2m_cmp [= BN_ucmp]
1315 (Note that only the 'mod' functions are actually for fields GF(2^m).
1316 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1318 For some functions, an the irreducible polynomial defining a
1319 field can be given as an 'unsigned int[]' with strictly
1320 decreasing elements giving the indices of those bits that are set;
1321 i.e., p[] represents the polynomial
1322 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1324 p[0] > p[1] > ... > p[k] = 0.
1325 This applies to the following functions:
1330 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1331 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1333 BN_GF2m_mod_sqrt_arr
1334 BN_GF2m_mod_solve_quad_arr
1338 Conversion can be performed by the following functions:
1343 bntest.c has additional tests for binary polynomial arithmetic.
1345 Two implementations for BN_GF2m_mod_div() are available.
1346 The default algorithm simply uses BN_GF2m_mod_inv() and
1347 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1348 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1349 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1351 [Sheueling Chang Shantz and Douglas Stebila
1352 (Sun Microsystems Laboratories)]
1354 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1355 functionality is disabled at compile-time.
1356 [Douglas Stebila <douglas.stebila@sun.com>]
1358 *) Change default behaviour of 'openssl asn1parse' so that more
1359 information is visible when viewing, e.g., a certificate:
1361 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1362 mode the content of non-printable OCTET STRINGs is output in a
1363 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1364 avoid the appearance of a printable string.
1365 [Nils Larsch <nla@trustcenter.de>]
1367 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1369 EC_GROUP_set_asn1_flag()
1370 EC_GROUP_get_asn1_flag()
1371 EC_GROUP_set_point_conversion_form()
1372 EC_GROUP_get_point_conversion_form()
1373 These control ASN1 encoding details:
1374 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1375 has been set to OPENSSL_EC_NAMED_CURVE.
1376 - Points are encoded in uncompressed form by default; options for
1377 asn1_for are as for point2oct, namely
1378 POINT_CONVERSION_COMPRESSED
1379 POINT_CONVERSION_UNCOMPRESSED
1380 POINT_CONVERSION_HYBRID
1382 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1385 EC_GROUP_get0_seed()
1386 EC_GROUP_get_seed_len()
1387 This is used only for ASN1 purposes (so far).
1388 [Nils Larsch <nla@trustcenter.de>]
1390 *) Add 'field_type' member to EC_METHOD, which holds the NID
1391 of the appropriate field type OID. The new function
1392 EC_METHOD_get_field_type() returns this value.
1393 [Nils Larsch <nla@trustcenter.de>]
1398 EC_POINT_point2hex()
1399 EC_POINT_hex2point()
1400 providing useful interfaces to EC_POINT_point2oct() and
1401 EC_POINT_oct2point().
1402 [Nils Larsch <nla@trustcenter.de>]
1404 *) Change internals of the EC library so that the functions
1405 EC_GROUP_set_generator()
1406 EC_GROUP_get_generator()
1407 EC_GROUP_get_order()
1408 EC_GROUP_get_cofactor()
1409 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1410 to methods, which would lead to unnecessary code duplication when
1411 adding different types of curves.
1412 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1414 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1415 arithmetic, and such that modified wNAFs are generated
1416 (which avoid length expansion in many cases).
1419 *) Add a function EC_GROUP_check_discriminant() (defined via
1420 EC_METHOD) that verifies that the curve discriminant is non-zero.
1422 Add a function EC_GROUP_check() that makes some sanity tests
1423 on a EC_GROUP, its generator and order. This includes
1424 EC_GROUP_check_discriminant().
1425 [Nils Larsch <nla@trustcenter.de>]
1427 *) Add ECDSA in new directory crypto/ecdsa/.
1429 Add applications 'openssl ecparam' and 'openssl ecdsa'
1430 (these are based on 'openssl dsaparam' and 'openssl dsa').
1432 ECDSA support is also included in various other files across the
1433 library. Most notably,
1434 - 'openssl req' now has a '-newkey ecdsa:file' option;
1435 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1436 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1437 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1438 them suitable for ECDSA where domain parameters must be
1439 extracted before the specific public key;
1440 - ECDSA engine support has been added.
1441 [Nils Larsch <nla@trustcenter.de>]
1443 *) Include some named elliptic curves, and add OIDs from X9.62,
1444 SECG, and WAP/WTLS. Each curve can be obtained from the new
1446 EC_GROUP_new_by_curve_name(),
1447 and the list of available named curves can be obtained with
1448 EC_get_builtin_curves().
1449 Also add a 'curve_name' member to EC_GROUP objects, which can be
1451 EC_GROUP_set_curve_name()
1452 EC_GROUP_get_curve_name()
1453 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1455 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1456 was actually never needed) and in BN_mul(). The removal in BN_mul()
1457 required a small change in bn_mul_part_recursive() and the addition
1458 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1459 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1460 bn_sub_words() and bn_add_words() except they take arrays with
1464 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1466 *) In the SSL/TLS server implementation, be strict about session ID
1467 context matching (which matters if an application uses a single
1468 external cache for different purposes). Previously,
1469 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1470 set. This did ensure strict client verification, but meant that,
1471 with applications using a single external cache for quite
1472 different requirements, clients could circumvent ciphersuite
1473 restrictions for a given session ID context by starting a session
1474 in a different context.
1477 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1479 *) Cleanse PEM buffers before freeing them since they may contain
1481 [Benjamin Bennett <ben@psc.edu>]
1483 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1484 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1485 authentication-only ciphersuites.
1488 *) Since AES128 and AES256 share a single mask bit in the logic of
1489 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1490 kludge to work properly if AES128 is available and AES256 isn't.
1493 *) Expand security boundary to match 1.1.1 module.
1496 *) Remove redundant features: hash file source, editing of test vectors
1497 modify fipsld to use external fips_premain.c signature.
1500 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1501 run algorithm test programs.
1504 *) Make algorithm test programs more tolerant of whitespace.
1507 *) Have SSL/TLS server implementation tolerate "mismatched" record
1508 protocol version while receiving ClientHello even if the
1509 ClientHello is fragmented. (The server can't insist on the
1510 particular protocol version it has chosen before the ServerHello
1511 message has informed the client about his choice.)
1514 *) Load error codes if they are not already present instead of using a
1515 static variable. This allows them to be cleanly unloaded and reloaded.
1518 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1520 *) Introduce limits to prevent malicious keys being able to
1521 cause a denial of service. (CVE-2006-2940)
1522 [Steve Henson, Bodo Moeller]
1524 *) Fix ASN.1 parsing of certain invalid structures that can result
1525 in a denial of service. (CVE-2006-2937) [Steve Henson]
1527 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1528 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1530 *) Fix SSL client code which could crash if connecting to a
1531 malicious SSLv2 server. (CVE-2006-4343)
1532 [Tavis Ormandy and Will Drewry, Google Security Team]
1534 *) Change ciphersuite string processing so that an explicit
1535 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1536 will no longer include "AES128-SHA"), and any other similar
1537 ciphersuite (same bitmap) from *other* protocol versions (so that
1538 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1539 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1540 changes from 0.9.8b and 0.9.8d.
1543 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1545 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1546 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1548 *) Change the Unix randomness entropy gathering to use poll() when
1549 possible instead of select(), since the latter has some
1550 undesirable limitations.
1551 [Darryl Miles via Richard Levitte and Bodo Moeller]
1553 *) Disable rogue ciphersuites:
1555 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1556 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1557 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1559 The latter two were purportedly from
1560 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1563 Also deactive the remaining ciphersuites from
1564 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1565 unofficial, and the ID has long expired.
1568 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1569 dual-core machines) and other potential thread-safety issues.
1572 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1574 *) Adapt fipsld and the build system to link against the validated FIPS
1575 module in FIPS mode.
1578 *) Fixes for VC++ 2005 build under Windows.
1581 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1582 from a Windows bash shell such as MSYS. It is autodetected from the
1583 "config" script when run from a VC++ environment. Modify standard VC++
1584 build to use fipscanister.o from the GNU make build.
1587 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1589 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1590 The value now differs depending on if you build for FIPS or not.
1591 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1592 safely run with a non-FIPSed libcrypto, as it may crash because of
1593 the difference induced by this change.
1596 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1598 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1599 (part of SSL_OP_ALL). This option used to disable the
1600 countermeasure against man-in-the-middle protocol-version
1601 rollback in the SSL 2.0 server implementation, which is a bad
1602 idea. (CVE-2005-2969)
1604 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1605 for Information Security, National Institute of Advanced Industrial
1606 Science and Technology [AIST], Japan)]
1608 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1609 mainly for FIPS compliance and not fully integrated at this stage.
1612 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1613 the exponentiation using a fixed-length exponent. (Otherwise,
1614 the information leaked through timing could expose the secret key
1615 after many signatures; cf. Bleichenbacher's attack on DSA with
1619 *) Make a new fixed-window mod_exp implementation the default for
1620 RSA, DSA, and DH private-key operations so that the sequence of
1621 squares and multiplies and the memory access pattern are
1622 independent of the particular secret key. This will mitigate
1623 cache-timing and potential related attacks.
1625 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1626 and this is automatically used by BN_mod_exp_mont() if the new flag
1627 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1628 will use this BN flag for private exponents unless the flag
1629 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1630 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1632 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1634 *) Change the client implementation for SSLv23_method() and
1635 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1636 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1637 (Previously, the SSL 2.0 backwards compatible Client Hello
1638 message format would be used even with SSL_OP_NO_SSLv2.)
1641 *) Add support for smime-type MIME parameter in S/MIME messages which some
1645 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1646 a threadsafe manner. Modify rsa code to use new function and add calls
1647 to dsa and dh code (which had race conditions before).
1650 *) Include the fixed error library code in the C error file definitions
1651 instead of fixing them up at runtime. This keeps the error code
1652 structures constant.
1655 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1657 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1660 *) Fixes for newer kerberos headers. NB: the casts are needed because
1661 the 'length' field is signed on one version and unsigned on another
1662 with no (?) obvious way to tell the difference, without these VC++
1663 complains. Also the "definition" of FAR (blank) is no longer included
1664 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1665 some needed definitions.
1668 *) Undo Cygwin change.
1671 *) Added support for proxy certificates according to RFC 3820.
1672 Because they may be a security thread to unaware applications,
1673 they must be explicitely allowed in run-time. See
1674 docs/HOWTO/proxy_certificates.txt for further information.
1677 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1679 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1680 server and client random values. Previously
1681 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1682 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1684 This change has negligible security impact because:
1686 1. Server and client random values still have 24 bytes of pseudo random
1689 2. Server and client random values are sent in the clear in the initial
1692 3. The master secret is derived using the premaster secret (48 bytes in
1693 size for static RSA ciphersuites) as well as client server and random
1696 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1699 [Stephen Henson, reported by UK NISCC]
1701 *) Use Windows randomness collection on Cygwin.
1704 *) Fix hang in EGD/PRNGD query when communication socket is closed
1705 prematurely by EGD/PRNGD.
1706 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1708 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1711 *) Back-port of selected performance improvements from development
1712 branch, as well as improved support for PowerPC platforms.
1715 *) Add lots of checks for memory allocation failure, error codes to indicate
1716 failure and freeing up memory if a failure occurs.
1717 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1719 *) Add new -passin argument to dgst.
1722 *) Perform some character comparisons of different types in X509_NAME_cmp:
1723 this is needed for some certificates that reencode DNs into UTF8Strings
1724 (in violation of RFC3280) and can't or wont issue name rollover
1728 *) Make an explicit check during certificate validation to see that
1729 the CA setting in each certificate on the chain is correct. As a
1730 side effect always do the following basic checks on extensions,
1731 not just when there's an associated purpose to the check:
1733 - if there is an unhandled critical extension (unless the user
1734 has chosen to ignore this fault)
1735 - if the path length has been exceeded (if one is set at all)
1736 - that certain extensions fit the associated purpose (if one has
1740 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1742 *) Avoid a race condition when CRLs are checked in a multi threaded
1743 environment. This would happen due to the reordering of the revoked
1744 entries during signature checking and serial number lookup. Now the
1745 encoding is cached and the serial number sort performed under a lock.
1746 Add new STACK function sk_is_sorted().
1749 *) Add Delta CRL to the extension code.
1752 *) Various fixes to s3_pkt.c so alerts are sent properly.
1753 [David Holmes <d.holmes@f5.com>]
1755 *) Reduce the chances of duplicate issuer name and serial numbers (in
1756 violation of RFC3280) using the OpenSSL certificate creation utilities.
1757 This is done by creating a random 64 bit value for the initial serial
1758 number when a serial number file is created or when a self signed
1759 certificate is created using 'openssl req -x509'. The initial serial
1760 number file is created using 'openssl x509 -next_serial' in CA.pl
1761 rather than being initialized to 1.
1764 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1766 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1767 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1768 [Joe Orton, Steve Henson]
1770 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1772 [Joe Orton, Steve Henson]
1774 *) Make it possible to have multiple active certificates with the same
1775 subject in the CA index file. This is done only if the keyword
1776 'unique_subject' is set to 'no' in the main CA section (default
1777 if 'CA_default') of the configuration file. The value is saved
1778 with the database itself in a separate index attribute file,
1779 named like the index file with '.attr' appended to the name.
1782 *) X509 verify fixes. Disable broken certificate workarounds when
1783 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1784 keyUsage extension present. Don't accept CRLs with unhandled critical
1785 extensions: since verify currently doesn't process CRL extensions this
1786 rejects a CRL with *any* critical extensions. Add new verify error codes
1790 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1791 A clarification of RFC2560 will require the use of OCTET STRINGs and
1792 some implementations cannot handle the current raw format. Since OpenSSL
1793 copies and compares OCSP nonces as opaque blobs without any attempt at
1794 parsing them this should not create any compatibility issues.
1797 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1798 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1799 this HMAC (and other) operations are several times slower than OpenSSL
1803 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1804 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1806 *) Use the correct content when signing type "other".
1809 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1811 *) Fix various bugs revealed by running the NISCC test suite:
1813 Stop out of bounds reads in the ASN1 code when presented with
1814 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1816 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1818 If verify callback ignores invalid public key errors don't try to check
1819 certificate signature with the NULL public key.
1823 *) New -ignore_err option in ocsp application to stop the server
1824 exiting on the first error in a request.
1827 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1828 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1832 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1833 extra data after the compression methods not only for TLS 1.0
1834 but also for SSL 3.0 (as required by the specification).
1835 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1837 *) Change X509_certificate_type() to mark the key as exported/exportable
1838 when it's 512 *bits* long, not 512 bytes.
1841 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1842 blocks during encryption.
1845 *) Various fixes to base64 BIO and non blocking I/O. On write
1846 flushes were not handled properly if the BIO retried. On read
1847 data was not being buffered properly and had various logic bugs.
1848 This also affects blocking I/O when the data being decoded is a
1852 *) Various S/MIME bugfixes and compatibility changes:
1853 output correct application/pkcs7 MIME type if
1854 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1855 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1856 of files as .eml work). Correctly handle very long lines in MIME
1860 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1862 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1863 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1864 a protocol version number mismatch like a decryption error
1865 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1868 *) Turn on RSA blinding by default in the default implementation
1869 to avoid a timing attack. Applications that don't want it can call
1870 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1871 They would be ill-advised to do so in most cases.
1872 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1874 *) Change RSA blinding code so that it works when the PRNG is not
1875 seeded (in this case, the secret RSA exponent is abused as
1876 an unpredictable seed -- if it is not unpredictable, there
1877 is no point in blinding anyway). Make RSA blinding thread-safe
1878 by remembering the creator's thread ID in rsa->blinding and
1879 having all other threads use local one-time blinding factors
1880 (this requires more computation than sharing rsa->blinding, but
1881 avoids excessive locking; and if an RSA object is not shared
1882 between threads, blinding will still be very fast).
1885 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1886 ENGINE as defaults for all supported algorithms irrespective of
1887 the 'flags' parameter. 'flags' is now honoured, so applications
1888 should make sure they are passing it correctly.
1891 *) Target "mingw" now allows native Windows code to be generated in
1892 the Cygwin environment as well as with the MinGW compiler.
1895 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1897 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1898 via timing by performing a MAC computation even if incorrrect
1899 block cipher padding has been found. This is a countermeasure
1900 against active attacks where the attacker has to distinguish
1901 between bad padding and a MAC verification error. (CVE-2003-0078)
1903 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1904 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1905 Martin Vuagnoux (EPFL, Ilion)]
1907 *) Make the no-err option work as intended. The intention with no-err
1908 is not to have the whole error stack handling routines removed from
1909 libcrypto, it's only intended to remove all the function name and
1910 reason texts, thereby removing some of the footprint that may not
1911 be interesting if those errors aren't displayed anyway.
1913 NOTE: it's still possible for any application or module to have it's
1914 own set of error texts inserted. The routines are there, just not
1915 used by default when no-err is given.
1918 *) Add support for FreeBSD on IA64.
1919 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1921 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1922 Kerberos function mit_des_cbc_cksum(). Before this change,
1923 the value returned by DES_cbc_cksum() was like the one from
1924 mit_des_cbc_cksum(), except the bytes were swapped.
1925 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1927 *) Allow an application to disable the automatic SSL chain building.
1928 Before this a rather primitive chain build was always performed in
1929 ssl3_output_cert_chain(): an application had no way to send the
1930 correct chain if the automatic operation produced an incorrect result.
1932 Now the chain builder is disabled if either:
1934 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1936 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1938 The reasoning behind this is that an application would not want the
1939 auto chain building to take place if extra chain certificates are
1940 present and it might also want a means of sending no additional
1941 certificates (for example the chain has two certificates and the
1945 *) Add the possibility to build without the ENGINE framework.
1946 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1948 *) Under Win32 gmtime() can return NULL: check return value in
1949 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1952 *) DSA routines: under certain error conditions uninitialized BN objects
1953 could be freed. Solution: make sure initialization is performed early
1954 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1955 Nils Larsch <nla@trustcenter.de> via PR#459)
1958 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1959 checked on reconnect on the client side, therefore session resumption
1960 could still fail with a "ssl session id is different" error. This
1961 behaviour is masked when SSL_OP_ALL is used due to
1962 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1963 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1964 followup to PR #377.
1967 *) IA-32 assembler support enhancements: unified ELF targets, support
1968 for SCO/Caldera platforms, fix for Cygwin shared build.
1971 *) Add support for FreeBSD on sparc64. As a consequence, support for
1972 FreeBSD on non-x86 processors is separate from x86 processors on
1973 the config script, much like the NetBSD support.
1974 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1976 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1978 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1981 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1982 code (06) was taken as the first octet of the session ID and the last
1983 octet was ignored consequently. As a result SSLv2 client side session
1984 caching could not have worked due to the session ID mismatch between
1986 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1990 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1991 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1995 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1996 seems that in spite of existing for more than a year, many application
1997 author have done nothing to provide the necessary callbacks, which
1998 means that this particular engine will not work properly anywhere.
1999 This is a very unfortunate situation which forces us, in the name
2000 of usability, to give the hw_ncipher.c a static lock, which is part
2002 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2003 appear in 0.9.8 or later. We EXPECT application authors to have
2004 dealt properly with this when 0.9.8 is released (unless we actually
2005 make such changes in the libcrypto locking code that changes will
2006 have to be made anyway).
2009 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2010 octets have been read, EOF or an error occurs. Without this change
2011 some truncated ASN1 structures will not produce an error.
2014 *) Disable Heimdal support, since it hasn't been fully implemented.
2015 Still give the possibility to force the use of Heimdal, but with
2016 warnings and a request that patches get sent to openssl-dev.
2019 *) Add the VC-CE target, introduce the WINCE sysname, and add
2020 INSTALL.WCE and appropriate conditionals to make it build.
2021 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2023 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2024 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2025 edit numbers of the version.
2026 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2028 *) Introduce safe string copy and catenation functions
2029 (BUF_strlcpy() and BUF_strlcat()).
2030 [Ben Laurie (CHATS) and Richard Levitte]
2032 *) Avoid using fixed-size buffers for one-line DNs.
2033 [Ben Laurie (CHATS)]
2035 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2036 resizing buffers containing secrets, and use where appropriate.
2037 [Ben Laurie (CHATS)]
2039 *) Avoid using fixed size buffers for configuration file location.
2040 [Ben Laurie (CHATS)]
2042 *) Avoid filename truncation for various CA files.
2043 [Ben Laurie (CHATS)]
2045 *) Use sizeof in preference to magic numbers.
2046 [Ben Laurie (CHATS)]
2048 *) Avoid filename truncation in cert requests.
2049 [Ben Laurie (CHATS)]
2051 *) Add assertions to check for (supposedly impossible) buffer
2053 [Ben Laurie (CHATS)]
2055 *) Don't cache truncated DNS entries in the local cache (this could
2056 potentially lead to a spoofing attack).
2057 [Ben Laurie (CHATS)]
2059 *) Fix various buffers to be large enough for hex/decimal
2060 representations in a platform independent manner.
2061 [Ben Laurie (CHATS)]
2063 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2064 resizing buffers containing secrets, and use where appropriate.
2065 [Ben Laurie (CHATS)]
2067 *) Add BIO_indent() to avoid much slightly worrying code to do
2069 [Ben Laurie (CHATS)]
2071 *) Convert sprintf()/BIO_puts() to BIO_printf().
2072 [Ben Laurie (CHATS)]
2074 *) buffer_gets() could terminate with the buffer only half
2076 [Ben Laurie (CHATS)]
2078 *) Add assertions to prevent user-supplied crypto functions from
2079 overflowing internal buffers by having large block sizes, etc.
2080 [Ben Laurie (CHATS)]
2082 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2084 [Ben Laurie (CHATS)]
2086 *) Eliminate unused copy of key in RC4.
2087 [Ben Laurie (CHATS)]
2089 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2090 [Ben Laurie (CHATS)]
2092 *) Fix off-by-one error in EGD path.
2093 [Ben Laurie (CHATS)]
2095 *) If RANDFILE path is too long, ignore instead of truncating.
2096 [Ben Laurie (CHATS)]
2098 *) Eliminate unused and incorrectly sized X.509 structure
2100 [Ben Laurie (CHATS)]
2102 *) Eliminate unused and dangerous function knumber().
2103 [Ben Laurie (CHATS)]
2105 *) Eliminate unused and dangerous structure, KSSL_ERR.
2106 [Ben Laurie (CHATS)]
2108 *) Protect against overlong session ID context length in an encoded
2109 session object. Since these are local, this does not appear to be
2111 [Ben Laurie (CHATS)]
2113 *) Change from security patch (see 0.9.6e below) that did not affect
2114 the 0.9.6 release series:
2116 Remote buffer overflow in SSL3 protocol - an attacker could
2117 supply an oversized master key in Kerberos-enabled versions.
2119 [Ben Laurie (CHATS)]
2121 *) Change the SSL kerb5 codes to match RFC 2712.
2124 *) Make -nameopt work fully for req and add -reqopt switch.
2125 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2127 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2128 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2130 *) Make sure tests can be performed even if the corresponding algorithms
2131 have been removed entirely. This was also the last step to make
2132 OpenSSL compilable with DJGPP under all reasonable conditions.
2133 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2135 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2136 to allow version independent disabling of normally unselected ciphers,
2137 which may be activated as a side-effect of selecting a single cipher.
2139 (E.g., cipher list string "RSA" enables ciphersuites that are left
2140 out of "ALL" because they do not provide symmetric encryption.
2141 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2142 [Lutz Jaenicke, Bodo Moeller]
2144 *) Add appropriate support for separate platform-dependent build
2145 directories. The recommended way to make a platform-dependent
2146 build directory is the following (tested on Linux), maybe with
2149 # Place yourself outside of the OpenSSL source tree. In
2150 # this example, the environment variable OPENSSL_SOURCE
2151 # is assumed to contain the absolute OpenSSL source directory.
2152 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2153 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2154 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2155 mkdir -p `dirname $F`
2156 ln -s $OPENSSL_SOURCE/$F $F
2159 To be absolutely sure not to disturb the source tree, a "make clean"
2160 is a good thing. If it isn't successfull, don't worry about it,
2161 it probably means the source directory is very clean.
2164 *) Make sure any ENGINE control commands make local copies of string
2165 pointers passed to them whenever necessary. Otherwise it is possible
2166 the caller may have overwritten (or deallocated) the original string
2167 data when a later ENGINE operation tries to use the stored values.
2168 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2170 *) Improve diagnostics in file reading and command-line digests.
2171 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2173 *) Add AES modes CFB and OFB to the object database. Correct an
2174 error in AES-CFB decryption.
2177 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2178 allows existing EVP_CIPHER_CTX structures to be reused after
2179 calling EVP_*Final(). This behaviour is used by encryption
2180 BIOs and some applications. This has the side effect that
2181 applications must explicitly clean up cipher contexts with
2182 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2185 *) Check the values of dna and dnb in bn_mul_recursive before calling
2186 bn_mul_comba (a non zero value means the a or b arrays do not contain
2187 n2 elements) and fallback to bn_mul_normal if either is not zero.
2190 *) Fix escaping of non-ASCII characters when using the -subj option
2191 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2194 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2195 form for "surname", serialNumber has no short form.
2196 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2197 therefore remove "mail" short name for "internet 7".
2198 The OID for unique identifiers in X509 certificates is
2199 x500UniqueIdentifier, not uniqueIdentifier.
2200 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2203 *) Add an "init" command to the ENGINE config module and auto initialize
2204 ENGINEs. Without any "init" command the ENGINE will be initialized
2205 after all ctrl commands have been executed on it. If init=1 the
2206 ENGINE is initailized at that point (ctrls before that point are run
2207 on the uninitialized ENGINE and after on the initialized one). If
2208 init=0 then the ENGINE will not be iniatialized at all.
2211 *) Fix the 'app_verify_callback' interface so that the user-defined
2212 argument is actually passed to the callback: In the
2213 SSL_CTX_set_cert_verify_callback() prototype, the callback
2214 declaration has been changed from
2217 int (*cb)(X509_STORE_CTX *,void *);
2218 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2219 i=s->ctx->app_verify_callback(&ctx)
2220 has been changed into
2221 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2223 To update applications using SSL_CTX_set_cert_verify_callback(),
2224 a dummy argument can be added to their callback functions.
2225 [D. K. Smetters <smetters@parc.xerox.com>]
2227 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2228 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2230 *) Add and OPENSSL_LOAD_CONF define which will cause
2231 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2232 This allows older applications to transparently support certain
2233 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2234 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2235 load the config file and OPENSSL_add_all_algorithms_conf() which will
2236 always load it have also been added.
2239 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2240 Adjust NIDs and EVP layer.
2241 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2243 *) Config modules support in openssl utility.
2245 Most commands now load modules from the config file,
2246 though in a few (such as version) this isn't done
2247 because it couldn't be used for anything.
2249 In the case of ca and req the config file used is
2250 the same as the utility itself: that is the -config
2251 command line option can be used to specify an
2255 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2256 use "openssl_conf" if filename is NULL use default openssl config file.
2259 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2260 config section name. Add a new flag to tolerate a missing config file
2261 and move code to CONF_modules_load_file().
2264 *) Support for crypto accelerator cards from Accelerated Encryption
2265 Processing, www.aep.ie. (Use engine 'aep')
2266 The support was copied from 0.9.6c [engine] and adapted/corrected
2267 to work with the new engine framework.
2268 [AEP Inc. and Richard Levitte]
2270 *) Support for SureWare crypto accelerator cards from Baltimore
2271 Technologies. (Use engine 'sureware')
2272 The support was copied from 0.9.6c [engine] and adapted
2273 to work with the new engine framework.
2276 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2277 make the newer ENGINE framework commands for the CHIL engine work.
2278 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2280 *) Make it possible to produce shared libraries on ReliantUNIX.
2281 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2283 *) Add the configuration target debug-linux-ppro.
2284 Make 'openssl rsa' use the general key loading routines
2285 implemented in apps.c, and make those routines able to
2286 handle the key format FORMAT_NETSCAPE and the variant
2288 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2290 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2291 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2293 *) Add -keyform to rsautl, and document -engine.
2294 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2296 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2297 BIO_R_NO_SUCH_FILE error code rather than the generic
2298 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2301 *) Add new functions
2303 ERR_peek_last_error_line
2304 ERR_peek_last_error_line_data.
2305 These are similar to
2308 ERR_peek_error_line_data,
2309 but report on the latest error recorded rather than the first one
2310 still in the error queue.
2311 [Ben Laurie, Bodo Moeller]
2313 *) default_algorithms option in ENGINE config module. This allows things
2315 default_algorithms = ALL
2316 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2319 *) Prelminary ENGINE config module.
2322 *) New experimental application configuration code.
2325 *) Change the AES code to follow the same name structure as all other
2326 symmetric ciphers, and behave the same way. Move everything to
2327 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2328 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2330 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2331 [Ben Laurie and Theo de Raadt]
2333 *) Add option to output public keys in req command.
2334 [Massimiliano Pala madwolf@openca.org]
2336 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2337 (up to about 10% better than before for P-192 and P-224).
2340 *) New functions/macros
2342 SSL_CTX_set_msg_callback(ctx, cb)
2343 SSL_CTX_set_msg_callback_arg(ctx, arg)
2344 SSL_set_msg_callback(ssl, cb)
2345 SSL_set_msg_callback_arg(ssl, arg)
2347 to request calling a callback function
2349 void cb(int write_p, int version, int content_type,
2350 const void *buf, size_t len, SSL *ssl, void *arg)
2352 whenever a protocol message has been completely received
2353 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2354 protocol version according to which the SSL library interprets
2355 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2356 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2357 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2358 specification (change_cipher_spec(20), alert(21), handshake(22)).
2359 'buf' and 'len' point to the actual message, 'ssl' to the
2360 SSL object, and 'arg' is the application-defined value set by
2361 SSL[_CTX]_set_msg_callback_arg().
2363 'openssl s_client' and 'openssl s_server' have new '-msg' options
2364 to enable a callback that displays all protocol messages.
2367 *) Change the shared library support so shared libraries are built as
2368 soon as the corresponding static library is finished, and thereby get
2369 openssl and the test programs linked against the shared library.
2370 This still only happens when the keyword "shard" has been given to
2371 the configuration scripts.
2373 NOTE: shared library support is still an experimental thing, and
2374 backward binary compatibility is still not guaranteed.
2375 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2377 *) Add support for Subject Information Access extension.
2378 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2380 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2381 additional bytes when new memory had to be allocated, not just
2382 when reusing an existing buffer.
2385 *) New command line and configuration option 'utf8' for the req command.
2386 This allows field values to be specified as UTF8 strings.
2389 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2390 runs for the former and machine-readable output for the latter.
2393 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2394 of the e-mail address in the DN (i.e., it will go into a certificate
2395 extension only). The new configuration file option 'email_in_dn = no'
2396 has the same effect.
2397 [Massimiliano Pala madwolf@openca.org]
2399 *) Change all functions with names starting with des_ to be starting
2400 with DES_ instead. Add wrappers that are compatible with libdes,
2401 but are named _ossl_old_des_*. Finally, add macros that map the
2402 des_* symbols to the corresponding _ossl_old_des_* if libdes
2403 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2404 desired, the des_* symbols will be mapped to DES_*, with one
2407 Since we provide two compatibility mappings, the user needs to
2408 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2409 compatibility is desired. The default (i.e., when that macro
2410 isn't defined) is OpenSSL 0.9.6c compatibility.
2412 There are also macros that enable and disable the support of old
2413 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2414 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2415 are defined, the default will apply: to support the old des routines.
2417 In either case, one must include openssl/des.h to get the correct
2418 definitions. Do not try to just include openssl/des_old.h, that
2421 NOTE: This is a major break of an old API into a new one. Software
2422 authors are encouraged to switch to the DES_ style functions. Some
2423 time in the future, des_old.h and the libdes compatibility functions
2424 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2425 default), and then completely removed.
2428 *) Test for certificates which contain unsupported critical extensions.
2429 If such a certificate is found during a verify operation it is
2430 rejected by default: this behaviour can be overridden by either
2431 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2432 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2433 X509_supported_extension() has also been added which returns 1 if a
2434 particular extension is supported.
2437 *) Modify the behaviour of EVP cipher functions in similar way to digests
2438 to retain compatibility with existing code.
2441 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2442 compatibility with existing code. In particular the 'ctx' parameter does
2443 not have to be to be initialized before the call to EVP_DigestInit() and
2444 it is tidied up after a call to EVP_DigestFinal(). New function
2445 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2446 EVP_MD_CTX_copy() changed to not require the destination to be
2447 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2448 requires the destination to be valid.
2450 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2451 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2454 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2455 so that complete 'Handshake' protocol structures are kept in memory
2456 instead of overwriting 'msg_type' and 'length' with 'body' data.
2459 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2460 [Massimo Santin via Richard Levitte]
2462 *) Major restructuring to the underlying ENGINE code. This includes
2463 reduction of linker bloat, separation of pure "ENGINE" manipulation
2464 (initialisation, etc) from functionality dealing with implementations
2465 of specific crypto iterfaces. This change also introduces integrated
2466 support for symmetric ciphers and digest implementations - so ENGINEs
2467 can now accelerate these by providing EVP_CIPHER and EVP_MD
2468 implementations of their own. This is detailed in crypto/engine/README
2469 as it couldn't be adequately described here. However, there are a few
2470 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2471 were changed in the original introduction of ENGINE code have now
2472 reverted back - the hooking from this code to ENGINE is now a good
2473 deal more passive and at run-time, operations deal directly with
2474 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2475 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2476 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2477 they were not being used by the framework as there is no concept of a
2478 BIGNUM_METHOD and they could not be generalised to the new
2479 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2480 ENGINE_cpy() has been removed as it cannot be consistently defined in
2484 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2487 *) Change mkdef.pl to sort symbols that get the same entry number,
2488 and make sure the automatically generated functions ERR_load_*
2489 become part of libeay.num as well.
2492 *) New function SSL_renegotiate_pending(). This returns true once
2493 renegotiation has been requested (either SSL_renegotiate() call
2494 or HelloRequest/ClientHello receveived from the peer) and becomes
2495 false once a handshake has been completed.
2496 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2497 sends a HelloRequest, but does not ensure that a handshake takes
2498 place. SSL_renegotiate_pending() is useful for checking if the
2499 client has followed the request.)
2502 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2503 By default, clients may request session resumption even during
2504 renegotiation (if session ID contexts permit); with this option,
2505 session resumption is possible only in the first handshake.
2507 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2508 more bits available for options that should not be part of
2509 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2512 *) Add some demos for certificate and certificate request creation.
2515 *) Make maximum certificate chain size accepted from the peer application
2516 settable (SSL*_get/set_max_cert_list()), as proposed by
2517 "Douglas E. Engert" <deengert@anl.gov>.
2520 *) Add support for shared libraries for Unixware-7
2521 (Boyd Lynn Gerber <gerberb@zenez.com>).
2524 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2525 be done prior to destruction. Use this to unload error strings from
2526 ENGINEs that load their own error strings. NB: This adds two new API
2527 functions to "get" and "set" this destroy handler in an ENGINE.
2530 *) Alter all existing ENGINE implementations (except "openssl" and
2531 "openbsd") to dynamically instantiate their own error strings. This
2532 makes them more flexible to be built both as statically-linked ENGINEs
2533 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2534 Also, add stub code to each that makes building them as self-contained
2535 shared-libraries easier (see README.ENGINE).
2538 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2539 implementations into applications that are completely implemented in
2540 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2541 commands that can be used to configure what shared-library to load and
2542 to control aspects of the way it is handled. Also, made an update to
2543 the README.ENGINE file that brings its information up-to-date and
2544 provides some information and instructions on the "dynamic" ENGINE
2545 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2548 *) Make it possible to unload ranges of ERR strings with a new
2549 "ERR_unload_strings" function.
2552 *) Add a copy() function to EVP_MD.
2555 *) Make EVP_MD routines take a context pointer instead of just the
2556 md_data void pointer.
2559 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2560 that the digest can only process a single chunk of data
2561 (typically because it is provided by a piece of
2562 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2563 is only going to provide a single chunk of data, and hence the
2564 framework needn't accumulate the data for oneshot drivers.
2567 *) As with "ERR", make it possible to replace the underlying "ex_data"
2568 functions. This change also alters the storage and management of global
2569 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2570 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2571 index counters. The API functions that use this state have been changed
2572 to take a "class_index" rather than pointers to the class's local STACK
2573 and counter, and there is now an API function to dynamically create new
2574 classes. This centralisation allows us to (a) plug a lot of the
2575 thread-safety problems that existed, and (b) makes it possible to clean
2576 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2577 such data would previously have always leaked in application code and
2578 workarounds were in place to make the memory debugging turn a blind eye
2579 to it. Application code that doesn't use this new function will still
2580 leak as before, but their memory debugging output will announce it now
2581 rather than letting it slide.
2583 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2584 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2585 has a return value to indicate success or failure.
2588 *) Make it possible to replace the underlying "ERR" functions such that the
2589 global state (2 LHASH tables and 2 locks) is only used by the "default"
2590 implementation. This change also adds two functions to "get" and "set"
2591 the implementation prior to it being automatically set the first time
2592 any other ERR function takes place. Ie. an application can call "get",
2593 pass the return value to a module it has just loaded, and that module
2594 can call its own "set" function using that value. This means the
2595 module's "ERR" operations will use (and modify) the error state in the
2596 application and not in its own statically linked copy of OpenSSL code.
2599 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2600 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2601 the operation, and provides a more encapsulated way for external code
2602 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2603 to use these functions rather than manually incrementing the counts.
2605 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2608 *) Add EVP test program.
2611 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2614 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2615 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2616 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2617 These allow a CRL to be built without having to access X509_CRL fields
2618 directly. Modify 'ca' application to use new functions.
2621 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2622 bug workarounds. Rollback attack detection is a security feature.
2623 The problem will only arise on OpenSSL servers when TLSv1 is not
2624 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2625 Software authors not wanting to support TLSv1 will have special reasons
2626 for their choice and can explicitly enable this option.
2627 [Bodo Moeller, Lutz Jaenicke]
2629 *) Rationalise EVP so it can be extended: don't include a union of
2630 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2631 (similar to those existing for EVP_CIPHER_CTX).
2636 EVP_MD_CTX_init(&md); /* new function call */
2637 EVP_DigestInit(&md, EVP_sha1());
2638 EVP_DigestUpdate(&md, in, len);
2639 EVP_DigestFinal(&md, out, NULL);
2640 EVP_MD_CTX_cleanup(&md); /* new function call */
2644 *) Make DES key schedule conform to the usual scheme, as well as
2645 correcting its structure. This means that calls to DES functions
2646 now have to pass a pointer to a des_key_schedule instead of a
2647 plain des_key_schedule (which was actually always a pointer
2650 des_key_schedule ks;
2652 des_set_key_checked(..., &ks);
2653 des_ncbc_encrypt(..., &ks, ...);
2655 (Note that a later change renames 'des_...' into 'DES_...'.)
2658 *) Initial reduction of linker bloat: the use of some functions, such as
2659 PEM causes large amounts of unused functions to be linked in due to
2660 poor organisation. For example pem_all.c contains every PEM function
2661 which has a knock on effect of linking in large amounts of (unused)
2662 ASN1 code. Grouping together similar functions and splitting unrelated
2663 functions prevents this.
2666 *) Cleanup of EVP macros.
2669 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2670 correct _ecb suffix.
2673 *) Add initial OCSP responder support to ocsp application. The
2674 revocation information is handled using the text based index
2675 use by the ca application. The responder can either handle
2676 requests generated internally, supplied in files (for example
2677 via a CGI script) or using an internal minimal server.
2680 *) Add configuration choices to get zlib compression for TLS.
2683 *) Changes to Kerberos SSL for RFC 2712 compliance:
2684 1. Implemented real KerberosWrapper, instead of just using
2685 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2686 2. Implemented optional authenticator field of KerberosWrapper.
2688 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2689 and authenticator structs; see crypto/krb5/.
2691 Generalized Kerberos calls to support multiple Kerberos libraries.
2692 [Vern Staats <staatsvr@asc.hpc.mil>,
2693 Jeffrey Altman <jaltman@columbia.edu>
2694 via Richard Levitte]
2696 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2697 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2698 values for each of the key sizes rather than having just
2699 parameters (and 'speed' generating keys each time).
2702 *) Speed up EVP routines.
2705 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2706 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2707 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2708 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2710 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2711 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2712 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2715 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2717 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2720 *) Added the OS2-EMX target.
2721 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2723 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2724 to support NCONF routines in extension code. New function CONF_set_nconf()
2725 to allow functions which take an NCONF to also handle the old LHASH
2726 structure: this means that the old CONF compatible routines can be
2727 retained (in particular wrt extensions) without having to duplicate the
2728 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2731 *) Enhance the general user interface with mechanisms for inner control
2732 and with possibilities to have yes/no kind of prompts.
2735 *) Change all calls to low level digest routines in the library and
2736 applications to use EVP. Add missing calls to HMAC_cleanup() and
2737 don't assume HMAC_CTX can be copied using memcpy().
2738 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2740 *) Add the possibility to control engines through control names but with
2741 arbitrary arguments instead of just a string.
2742 Change the key loaders to take a UI_METHOD instead of a callback
2743 function pointer. NOTE: this breaks binary compatibility with earlier
2744 versions of OpenSSL [engine].
2745 Adapt the nCipher code for these new conditions and add a card insertion
2749 *) Enhance the general user interface with mechanisms to better support
2750 dialog box interfaces, application-defined prompts, the possibility
2751 to use defaults (for example default passwords from somewhere else)
2752 and interrupts/cancellations.
2755 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2756 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2759 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2760 tidy up some unnecessarily weird code in 'sk_new()').
2761 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2763 *) Change the key loading routines for ENGINEs to use the same kind
2764 callback (pem_password_cb) as all other routines that need this
2768 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2769 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2770 than this minimum value is recommended.
2773 *) New random seeder for OpenVMS, using the system process statistics
2774 that are easily reachable.
2777 *) Windows apparently can't transparently handle global
2778 variables defined in DLLs. Initialisations such as:
2780 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2782 wont compile. This is used by the any applications that need to
2783 declare their own ASN1 modules. This was fixed by adding the option
2784 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2785 needed for static libraries under Win32.
2788 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2789 setting of purpose and trust fields. New X509_STORE trust and
2790 purpose functions and tidy up setting in other SSL functions.
2793 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2794 structure. These are inherited by X509_STORE_CTX when it is
2795 initialised. This allows various defaults to be set in the
2796 X509_STORE structure (such as flags for CRL checking and custom
2797 purpose or trust settings) for functions which only use X509_STORE_CTX
2798 internally such as S/MIME.
2800 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2801 trust settings if they are not set in X509_STORE. This allows X509_STORE
2802 purposes and trust (in S/MIME for example) to override any set by default.
2804 Add command line options for CRL checking to smime, s_client and s_server
2808 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2809 are set then the CRL is looked up in the X509_STORE structure and
2810 its validity and signature checked, then if the certificate is found
2811 in the CRL the verify fails with a revoked error.
2813 Various new CRL related callbacks added to X509_STORE_CTX structure.
2815 Command line options added to 'verify' application to support this.
2817 This needs some additional work, such as being able to handle multiple
2818 CRLs with different times, extension based lookup (rather than just
2819 by subject name) and ultimately more complete V2 CRL extension
2823 *) Add a general user interface API (crypto/ui/). This is designed
2824 to replace things like des_read_password and friends (backward
2825 compatibility functions using this new API are provided).
2826 The purpose is to remove prompting functions from the DES code
2827 section as well as provide for prompting through dialog boxes in
2828 a window system and the like.
2831 *) Add "ex_data" support to ENGINE so implementations can add state at a
2832 per-structure level rather than having to store it globally.
2835 *) Make it possible for ENGINE structures to be copied when retrieved by
2836 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2837 This causes the "original" ENGINE structure to act like a template,
2838 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2839 operational state can be localised to each ENGINE structure, despite the
2840 fact they all share the same "methods". New ENGINE structures returned in
2841 this case have no functional references and the return value is the single
2842 structural reference. This matches the single structural reference returned
2843 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2847 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2848 needs to match any other type at all we need to manually clear the
2852 *) Changes to the "openssl engine" utility to include;
2853 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2854 about an ENGINE's available control commands.
2855 - executing control commands from command line arguments using the
2856 '-pre' and '-post' switches. '-post' is only used if '-t' is
2857 specified and the ENGINE is successfully initialised. The syntax for
2858 the individual commands are colon-separated, for example;
2859 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2862 *) New dynamic control command support for ENGINEs. ENGINEs can now
2863 declare their own commands (numbers), names (strings), descriptions,
2864 and input types for run-time discovery by calling applications. A
2865 subset of these commands are implicitly classed as "executable"
2866 depending on their input type, and only these can be invoked through
2867 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2868 can be based on user input, config files, etc). The distinction is
2869 that "executable" commands cannot return anything other than a boolean
2870 result and can only support numeric or string input, whereas some
2871 discoverable commands may only be for direct use through
2872 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2873 pointers, or other custom uses. The "executable" commands are to
2874 support parameterisations of ENGINE behaviour that can be
2875 unambiguously defined by ENGINEs and used consistently across any
2876 OpenSSL-based application. Commands have been added to all the
2877 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2878 control over shared-library paths without source code alterations.
2881 *) Changed all ENGINE implementations to dynamically allocate their
2882 ENGINEs rather than declaring them statically. Apart from this being
2883 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2884 this also allows the implementations to compile without using the
2885 internal engine_int.h header.
2888 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2889 'const' value. Any code that should be able to modify a RAND_METHOD
2890 should already have non-const pointers to it (ie. they should only
2891 modify their own ones).
2894 *) Made a variety of little tweaks to the ENGINE code.
2895 - "atalla" and "ubsec" string definitions were moved from header files
2896 to C code. "nuron" string definitions were placed in variables
2897 rather than hard-coded - allowing parameterisation of these values
2898 later on via ctrl() commands.
2899 - Removed unused "#if 0"'d code.
2900 - Fixed engine list iteration code so it uses ENGINE_free() to release
2901 structural references.
2902 - Constified the RAND_METHOD element of ENGINE structures.
2903 - Constified various get/set functions as appropriate and added
2904 missing functions (including a catch-all ENGINE_cpy that duplicates
2905 all ENGINE values onto a new ENGINE except reference counts/state).
2906 - Removed NULL parameter checks in get/set functions. Setting a method
2907 or function to NULL is a way of cancelling out a previously set
2908 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2909 and doesn't justify the extra error symbols and code.
2910 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2911 flags from engine_int.h to engine.h.
2912 - Changed prototypes for ENGINE handler functions (init(), finish(),
2913 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2916 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2917 to the algorithm using long division. The binary algorithm can be
2918 used only if the modulus is odd. On 32-bit systems, it is faster
2919 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2920 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2921 up to 450 bits. In 64-bit environments, the binary algorithm
2922 appears to be advantageous for much longer moduli; here we use it
2923 for moduli up to 2048 bits.
2926 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2927 could not support the combine flag in choice fields.
2930 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2931 extensions from a certificate request to the certificate.
2934 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2935 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2936 file: this allows the display of the certificate about to be
2937 signed to be customised, to allow certain fields to be included
2938 or excluded and extension details. The old system didn't display
2939 multicharacter strings properly, omitted fields not in the policy
2940 and couldn't display additional details such as extensions.
2943 *) Function EC_POINTs_mul for multiple scalar multiplication
2944 of an arbitrary number of elliptic curve points
2945 \sum scalars[i]*points[i],
2946 optionally including the generator defined for the EC_GROUP:
2947 scalar*generator + \sum scalars[i]*points[i].
2949 EC_POINT_mul is a simple wrapper function for the typical case
2950 that the point list has just one item (besides the optional
2954 *) First EC_METHODs for curves over GF(p):
2956 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2957 operations and provides various method functions that can also
2958 operate with faster implementations of modular arithmetic.
2960 EC_GFp_mont_method() reuses most functions that are part of
2961 EC_GFp_simple_method, but uses Montgomery arithmetic.
2963 [Bodo Moeller; point addition and point doubling
2964 implementation directly derived from source code provided by
2965 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2967 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2968 crypto/ec/ec_lib.c):
2970 Curves are EC_GROUP objects (with an optional group generator)
2971 based on EC_METHODs that are built into the library.
2973 Points are EC_POINT objects based on EC_GROUP objects.
2975 Most of the framework would be able to handle curves over arbitrary
2976 finite fields, but as there are no obvious types for fields other
2977 than GF(p), some functions are limited to that for now.
2980 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2981 that the file contains a complete HTTP response.
2984 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2985 change the def and num file printf format specifier from "%-40sXXX"
2986 to "%-39s XXX". The latter will always guarantee a space after the
2987 field while the former will cause them to run together if the field
2988 is 40 of more characters long.
2991 *) Constify the cipher and digest 'method' functions and structures
2992 and modify related functions to take constant EVP_MD and EVP_CIPHER
2996 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2997 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3000 *) Modify EVP_Digest*() routines so they now return values. Although the
3001 internal software routines can never fail additional hardware versions
3005 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3007 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3008 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3011 ERR_R_NESTED_ASN1_ERROR
3013 ERR_R_MISSING_ASN1_EOS
3014 were 4 .. 9, conflicting with
3015 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3017 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3018 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3020 Add new error code 'ERR_R_INTERNAL_ERROR'.
3023 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3027 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3028 sets the subject name for a new request or supersedes the
3029 subject name in a given request. Formats that can be parsed are
3030 'CN=Some Name, OU=myOU, C=IT'
3032 'CN=Some Name/OU=myOU/C=IT'.
3034 Add options '-batch' and '-verbose' to 'openssl req'.
3035 [Massimiliano Pala <madwolf@hackmasters.net>]
3037 *) Introduce the possibility to access global variables through
3038 functions on platform were that's the best way to handle exporting
3039 global variables in shared libraries. To enable this functionality,
3040 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3041 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3042 is normally done by Configure or something similar).
3044 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3045 in the source file (foo.c) like this:
3047 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3048 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3050 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3051 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3053 OPENSSL_DECLARE_GLOBAL(int,foo);
3054 #define foo OPENSSL_GLOBAL_REF(foo)
3055 OPENSSL_DECLARE_GLOBAL(double,bar);
3056 #define bar OPENSSL_GLOBAL_REF(bar)
3058 The #defines are very important, and therefore so is including the
3059 header file everywhere where the defined globals are used.
3061 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3062 of ASN.1 items, but that structure is a bit different.
3064 The largest change is in util/mkdef.pl which has been enhanced with
3065 better and easier to understand logic to choose which symbols should
3066 go into the Windows .def files as well as a number of fixes and code
3067 cleanup (among others, algorithm keywords are now sorted
3068 lexicographically to avoid constant rewrites).
3071 *) In BN_div() keep a copy of the sign of 'num' before writing the
3072 result to 'rm' because if rm==num the value will be overwritten
3073 and produce the wrong result if 'num' is negative: this caused
3074 problems with BN_mod() and BN_nnmod().
3077 *) Function OCSP_request_verify(). This checks the signature on an
3078 OCSP request and verifies the signer certificate. The signer
3079 certificate is just checked for a generic purpose and OCSP request
3083 *) Add OCSP_check_validity() function to check the validity of OCSP
3084 responses. OCSP responses are prepared in real time and may only
3085 be a few seconds old. Simply checking that the current time lies
3086 between thisUpdate and nextUpdate max reject otherwise valid responses
3087 caused by either OCSP responder or client clock inaccuracy. Instead
3088 we allow thisUpdate and nextUpdate to fall within a certain period of
3089 the current time. The age of the response can also optionally be
3090 checked. Two new options -validity_period and -status_age added to
3094 *) If signature or public key algorithm is unrecognized print out its
3095 OID rather that just UNKNOWN.
3098 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3099 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3100 ID to be generated from the issuer certificate alone which can then be
3101 passed to OCSP_id_issuer_cmp().
3104 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3105 ASN1 modules to export functions returning ASN1_ITEM pointers
3106 instead of the ASN1_ITEM structures themselves. This adds several
3107 new macros which allow the underlying ASN1 function/structure to
3108 be accessed transparently. As a result code should not use ASN1_ITEM
3109 references directly (such as &X509_it) but instead use the relevant
3110 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3111 use of the new ASN1 code on platforms where exporting structures
3112 is problematical (for example in shared libraries) but exporting
3113 functions returning pointers to structures is not.
3116 *) Add support for overriding the generation of SSL/TLS session IDs.
3117 These callbacks can be registered either in an SSL_CTX or per SSL.
3118 The purpose of this is to allow applications to control, if they wish,
3119 the arbitrary values chosen for use as session IDs, particularly as it
3120 can be useful for session caching in multiple-server environments. A
3121 command-line switch for testing this (and any client code that wishes
3122 to use such a feature) has been added to "s_server".
3123 [Geoff Thorpe, Lutz Jaenicke]
3125 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3126 of the form '#if defined(...) || defined(...) || ...' and
3127 '#if !defined(...) && !defined(...) && ...'. This also avoids
3128 the growing number of special cases it was previously handling.
3131 *) Make all configuration macros available for application by making
3132 sure they are available in opensslconf.h, by giving them names starting
3133 with "OPENSSL_" to avoid conflicts with other packages and by making
3134 sure e_os2.h will cover all platform-specific cases together with
3136 Additionally, it is now possible to define configuration/platform-
3137 specific names (called "system identities"). In the C code, these
3138 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3139 macro with the name beginning with "OPENSSL_SYS_", which is determined
3140 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3144 *) New option -set_serial to 'req' and 'x509' this allows the serial
3145 number to use to be specified on the command line. Previously self
3146 signed certificates were hard coded with serial number 0 and the
3147 CA options of 'x509' had to use a serial number in a file which was
3151 *) New options to 'ca' utility to support V2 CRL entry extensions.
3152 Currently CRL reason, invalidity date and hold instruction are
3153 supported. Add new CRL extensions to V3 code and some new objects.
3156 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3157 disable standard block padding (aka PKCS#5 padding) in the EVP
3158 API, which was previously mandatory. This means that the data is
3159 not padded in any way and so the total length much be a multiple
3160 of the block size, otherwise an error occurs.
3163 *) Initial (incomplete) OCSP SSL support.
3166 *) New function OCSP_parse_url(). This splits up a URL into its host,
3167 port and path components: primarily to parse OCSP URLs. New -url
3168 option to ocsp utility.
3171 *) New nonce behavior. The return value of OCSP_check_nonce() now
3172 reflects the various checks performed. Applications can decide
3173 whether to tolerate certain situations such as an absent nonce
3174 in a response when one was present in a request: the ocsp application
3175 just prints out a warning. New function OCSP_add1_basic_nonce()
3176 this is to allow responders to include a nonce in a response even if
3177 the request is nonce-less.
3180 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3181 skipped when using openssl x509 multiple times on a single input file,
3182 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3185 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3186 set string type: to handle setting ASN1_TIME structures. Fix ca
3187 utility to correctly initialize revocation date of CRLs.
3190 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3191 the clients preferred ciphersuites and rather use its own preferences.
3192 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3193 Internet Explorer by ensuring unchanged hash method during stepup.
3194 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3197 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3198 to aes and add a new 'exist' option to print out symbols that don't
3202 *) Additional options to ocsp utility to allow flags to be set and
3203 additional certificates supplied.
3206 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3207 OCSP client a number of certificate to only verify the response
3211 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3212 handle the new API. Currently only ECB, CBC modes supported. Add new
3215 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3216 Encryption Standard (AES) Ciphersuites for Transport Layer
3217 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3218 not enabled by default and were not part of the "ALL" ciphersuite
3219 alias because they were not yet official; they could be
3220 explicitly requested by specifying the "AESdraft" ciphersuite
3221 group alias. In the final release of OpenSSL 0.9.7, the group
3222 alias is called "AES" and is part of "ALL".)
3223 [Ben Laurie, Steve Henson, Bodo Moeller]
3225 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3226 request to response.
3229 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3230 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3231 extract information from a certificate request. OCSP_response_create()
3232 creates a response and optionally adds a basic response structure.
3233 OCSP_basic_add1_status() adds a complete single response to a basic
3234 response and returns the OCSP_SINGLERESP structure just added (to allow
3235 extensions to be included for example). OCSP_basic_add1_cert() adds a
3236 certificate to a basic response and OCSP_basic_sign() signs a basic
3237 response with various flags. New helper functions ASN1_TIME_check()
3238 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3239 (converts ASN1_TIME to GeneralizedTime).
3242 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3243 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3244 structure from a certificate. X509_pubkey_digest() digests the public_key
3245 contents: this is used in various key identifiers.
3248 *) Make sk_sort() tolerate a NULL argument.
3249 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3251 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3252 passed by the function are trusted implicitly. If any of them signed the
3253 response then it is assumed to be valid and is not verified.
3256 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3257 to data. This was previously part of the PKCS7 ASN1 code. This
3258 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3259 [Steve Henson, reported by Kenneth R. Robinette
3260 <support@securenetterm.com>]
3262 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3263 routines: without these tracing memory leaks is very painful.
3264 Fix leaks in PKCS12 and PKCS7 routines.
3267 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3268 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3269 effectively meant GeneralizedTime would never be used. Now it
3270 is initialised to -1 but X509_time_adj() now has to check the value
3271 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3272 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3273 [Steve Henson, reported by Kenneth R. Robinette
3274 <support@securenetterm.com>]
3276 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3277 result in a zero length in the ASN1_INTEGER structure which was
3278 not consistent with the structure when d2i_ASN1_INTEGER() was used
3279 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3280 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3281 where it did not print out a minus for negative ASN1_INTEGER.
3284 *) Add summary printout to ocsp utility. The various functions which
3285 convert status values to strings have been renamed to:
3286 OCSP_response_status_str(), OCSP_cert_status_str() and
3287 OCSP_crl_reason_str() and are no longer static. New options
3288 to verify nonce values and to disable verification. OCSP response
3289 printout format cleaned up.
3292 *) Add additional OCSP certificate checks. These are those specified
3293 in RFC2560. This consists of two separate checks: the CA of the
3294 certificate being checked must either be the OCSP signer certificate
3295 or the issuer of the OCSP signer certificate. In the latter case the
3296 OCSP signer certificate must contain the OCSP signing extended key
3297 usage. This check is performed by attempting to match the OCSP
3298 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3299 in the OCSP_CERTID structures of the response.
3302 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3303 and related routines. This uses the standard OpenSSL certificate
3304 verify routines to perform initial checks (just CA validity) and
3305 to obtain the certificate chain. Then additional checks will be
3306 performed on the chain. Currently the root CA is checked to see
3307 if it is explicitly trusted for OCSP signing. This is used to set
3308 a root CA as a global signing root: that is any certificate that
3309 chains to that CA is an acceptable OCSP signing certificate.
3312 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3313 extensions from a separate configuration file.
3314 As when reading extensions from the main configuration file,
3315 the '-extensions ...' option may be used for specifying the
3317 [Massimiliano Pala <madwolf@comune.modena.it>]
3319 *) New OCSP utility. Allows OCSP requests to be generated or
3320 read. The request can be sent to a responder and the output
3321 parsed, outputed or printed in text form. Not complete yet:
3322 still needs to check the OCSP response validity.
3325 *) New subcommands for 'openssl ca':
3326 'openssl ca -status <serial>' prints the status of the cert with
3327 the given serial number (according to the index file).
3328 'openssl ca -updatedb' updates the expiry status of certificates
3330 [Massimiliano Pala <madwolf@comune.modena.it>]
3332 *) New '-newreq-nodes' command option to CA.pl. This is like
3333 '-newreq', but calls 'openssl req' with the '-nodes' option
3334 so that the resulting key is not encrypted.
3335 [Damien Miller <djm@mindrot.org>]
3337 *) New configuration for the GNU Hurd.
3338 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3340 *) Initial code to implement OCSP basic response verify. This
3341 is currently incomplete. Currently just finds the signer's
3342 certificate and verifies the signature on the response.
3345 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3346 value of OPENSSLDIR. This is available via the new '-d' option
3347 to 'openssl version', and is also included in 'openssl version -a'.
3350 *) Allowing defining memory allocation callbacks that will be given
3351 file name and line number information in additional arguments
3352 (a const char* and an int). The basic functionality remains, as
3353 well as the original possibility to just replace malloc(),
3354 realloc() and free() by functions that do not know about these
3355 additional arguments. To register and find out the current
3356 settings for extended allocation functions, the following
3357 functions are provided:
3359 CRYPTO_set_mem_ex_functions
3360 CRYPTO_set_locked_mem_ex_functions
3361 CRYPTO_get_mem_ex_functions
3362 CRYPTO_get_locked_mem_ex_functions
3364 These work the same way as CRYPTO_set_mem_functions and friends.
3365 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3366 extended allocation function is enabled.
3367 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3368 a conventional allocation function is enabled.
3369 [Richard Levitte, Bodo Moeller]
3371 *) Finish off removing the remaining LHASH function pointer casts.
3372 There should no longer be any prototype-casting required when using
3373 the LHASH abstraction, and any casts that remain are "bugs". See
3374 the callback types and macros at the head of lhash.h for details
3375 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3378 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3379 If /dev/[u]random devices are not available or do not return enough
3380 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3382 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3383 /etc/entropy will be queried once each in this sequence, quering stops
3384 when enough entropy was collected without querying more sockets.
3387 *) Change the Unix RAND_poll() variant to be able to poll several
3388 random devices, as specified by DEVRANDOM, until a sufficient amount
3389 of data has been collected. We spend at most 10 ms on each file
3390 (select timeout) and read in non-blocking mode. DEVRANDOM now
3391 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3392 (previously it was just the string "/dev/urandom"), so on typical
3393 platforms the 10 ms delay will never occur.
3394 Also separate out the Unix variant to its own file, rand_unix.c.
3395 For VMS, there's a currently-empty rand_vms.c.
3398 *) Move OCSP client related routines to ocsp_cl.c. These
3399 provide utility functions which an application needing
3400 to issue a request to an OCSP responder and analyse the
3401 response will typically need: as opposed to those which an
3402 OCSP responder itself would need which will be added later.
3404 OCSP_request_sign() signs an OCSP request with an API similar
3405 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3406 response. OCSP_response_get1_basic() extracts basic response
3407 from response. OCSP_resp_find_status(): finds and extracts status
3408 information from an OCSP_CERTID structure (which will be created
3409 when the request structure is built). These are built from lower
3410 level functions which work on OCSP_SINGLERESP structures but
3411 wont normally be used unless the application wishes to examine
3412 extensions in the OCSP response for example.
3414 Replace nonce routines with a pair of functions.
3415 OCSP_request_add1_nonce() adds a nonce value and optionally
3416 generates a random value. OCSP_check_nonce() checks the
3417 validity of the nonce in an OCSP response.
3420 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3421 This doesn't copy the supplied OCSP_CERTID and avoids the
3422 need to free up the newly created id. Change return type
3423 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3424 This can then be used to add extensions to the request.
3425 Deleted OCSP_request_new(), since most of its functionality
3426 is now in OCSP_REQUEST_new() (and the case insensitive name
3427 clash) apart from the ability to set the request name which
3428 will be added elsewhere.
3431 *) Update OCSP API. Remove obsolete extensions argument from
3432 various functions. Extensions are now handled using the new
3433 OCSP extension code. New simple OCSP HTTP function which
3434 can be used to send requests and parse the response.
3437 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3438 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3439 uses the special reorder version of SET OF to sort the attributes
3440 and reorder them to match the encoded order. This resolves a long
3441 standing problem: a verify on a PKCS7 structure just after signing
3442 it used to fail because the attribute order did not match the
3443 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3444 it uses the received order. This is necessary to tolerate some broken
3445 software that does not order SET OF. This is handled by encoding
3446 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3447 to produce the required SET OF.
3450 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3451 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3452 files to get correct declarations of the ASN.1 item variables.
3455 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3456 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3457 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3458 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3459 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3460 ASN1_ITEM and no wrapper functions.
3463 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3464 replace the old function pointer based I/O routines. Change most of
3465 the *_d2i_bio() and *_d2i_fp() functions to use these.
3468 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3469 lines, recognice more "algorithms" that can be deselected, and make
3470 it complain about algorithm deselection that isn't recognised.
3473 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3474 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3475 to use new functions. Add NO_ASN1_OLD which can be set to remove
3476 some old style ASN1 functions: this can be used to determine if old
3477 code will still work when these eventually go away.
3480 *) New extension functions for OCSP structures, these follow the
3481 same conventions as certificates and CRLs.
3484 *) New function X509V3_add1_i2d(). This automatically encodes and
3485 adds an extension. Its behaviour can be customised with various
3486 flags to append, replace or delete. Various wrappers added for
3487 certifcates and CRLs.
3490 *) Fix to avoid calling the underlying ASN1 print routine when
3491 an extension cannot be parsed. Correct a typo in the
3492 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3495 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3496 entries for variables.
3499 *) Add functionality to apps/openssl.c for detecting locking
3500 problems: As the program is single-threaded, all we have
3501 to do is register a locking callback using an array for
3502 storing which locks are currently held by the program.
3505 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3506 SSL_get_ex_data_X509_STORE_idx(), which is used in
3507 ssl_verify_cert_chain() and thus can be called at any time
3508 during TLS/SSL handshakes so that thread-safety is essential.
3509 Unfortunately, the ex_data design is not at all suited
3510 for multi-threaded use, so it probably should be abolished.
3513 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3514 [Broadcom, tweaked and integrated by Geoff Thorpe]
3516 *) Move common extension printing code to new function
3517 X509V3_print_extensions(). Reorganise OCSP print routines and
3518 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3521 *) New function X509_signature_print() to remove duplication in some
3525 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3526 set (this was treated exactly the same as SET OF previously). This
3527 is used to reorder the STACK representing the structure to match the
3528 encoding. This will be used to get round a problem where a PKCS7
3529 structure which was signed could not be verified because the STACK
3530 order did not reflect the encoded order.
3533 *) Reimplement the OCSP ASN1 module using the new code.
3536 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3537 for its ASN1 operations. The old style function pointers still exist
3538 for now but they will eventually go away.
3541 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3542 completely replaces the old ASN1 functionality with a table driven
3543 encoder and decoder which interprets an ASN1_ITEM structure describing
3544 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3545 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3546 has also been converted to the new form.
3549 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3550 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3551 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3552 for negative moduli.
3555 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3556 of not touching the result's sign bit.
3559 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3563 *) Changed the LHASH code to use prototypes for callbacks, and created
3564 macros to declare and implement thin (optionally static) functions
3565 that provide type-safety and avoid function pointer casting for the
3566 type-specific callbacks.
3569 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3571 [Veers Staats <staatsvr@asc.hpc.mil>,
3572 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3574 *) Reformat the FAQ so the different questions and answers can be divided
3575 in sections depending on the subject.
3578 *) Have the zlib compression code load ZLIB.DLL dynamically under
3582 *) New function BN_mod_sqrt for computing square roots modulo a prime
3583 (using the probabilistic Tonelli-Shanks algorithm unless
3584 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3585 be handled deterministically).
3586 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3588 *) Make BN_mod_inverse faster by explicitly handling small quotients
3589 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3590 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3593 *) New function BN_kronecker.
3596 *) Fix BN_gcd so that it works on negative inputs; the result is
3597 positive unless both parameters are zero.
3598 Previously something reasonably close to an infinite loop was
3599 possible because numbers could be growing instead of shrinking
3600 in the implementation of Euclid's algorithm.
3603 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3604 sign of the number in question.
3606 Fix BN_is_word(a,w) to work correctly for w == 0.
3608 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3609 because its test if the absolute value of 'a' equals 'w'.
3610 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3611 it exists mostly for use in the implementations of BN_is_zero(),
3612 BN_is_one(), and BN_is_word().
3615 *) New function BN_swap.
3618 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3619 the exponentiation functions are more likely to produce reasonable
3620 results on negative inputs.
3623 *) Change BN_mod_mul so that the result is always non-negative.
3624 Previously, it could be negative if one of the factors was negative;
3625 I don't think anyone really wanted that behaviour.
3628 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3629 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3630 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3631 and add new functions:
3640 BN_mod_lshift1_quick
3644 These functions always generate non-negative results.
3646 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3647 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3649 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3650 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3651 be reduced modulo m.
3652 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3655 The following entry accidentily appeared in the CHANGES file
3656 distributed with OpenSSL 0.9.7. The modifications described in
3657 it do *not* apply to OpenSSL 0.9.7.
3659 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3660 was actually never needed) and in BN_mul(). The removal in BN_mul()
3661 required a small change in bn_mul_part_recursive() and the addition
3662 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3663 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3664 bn_sub_words() and bn_add_words() except they take arrays with
3669 *) In 'openssl passwd', verify passwords read from the terminal
3670 unless the '-salt' option is used (which usually means that
3671 verification would just waste user's time since the resulting
3672 hash is going to be compared with some given password hash)
3673 or the new '-noverify' option is used.
3675 This is an incompatible change, but it does not affect
3676 non-interactive use of 'openssl passwd' (passwords on the command
3677 line, '-stdin' option, '-in ...' option) and thus should not
3681 *) Remove all references to RSAref, since there's no more need for it.
3684 *) Make DSO load along a path given through an environment variable
3685 (SHLIB_PATH) with shl_load().
3688 *) Constify the ENGINE code as a result of BIGNUM constification.
3689 Also constify the RSA code and most things related to it. In a
3690 few places, most notable in the depth of the ASN.1 code, ugly
3691 casts back to non-const were required (to be solved at a later
3695 *) Make it so the openssl application has all engines loaded by default.
3698 *) Constify the BIGNUM routines a little more.
3701 *) Add the following functions:
3703 ENGINE_load_cswift()
3705 ENGINE_load_atalla()
3707 ENGINE_load_builtin_engines()
3709 That way, an application can itself choose if external engines that
3710 are built-in in OpenSSL shall ever be used or not. The benefit is
3711 that applications won't have to be linked with libdl or other dso
3712 libraries unless it's really needed.
3714 Changed 'openssl engine' to load all engines on demand.
3715 Changed the engine header files to avoid the duplication of some
3716 declarations (they differed!).
3719 *) 'openssl engine' can now list capabilities.
3722 *) Better error reporting in 'openssl engine'.
3725 *) Never call load_dh_param(NULL) in s_server.
3728 *) Add engine application. It can currently list engines by name and
3729 identity, and test if they are actually available.
3732 *) Improve RPM specification file by forcing symbolic linking and making
3733 sure the installed documentation is also owned by root.root.
3734 [Damien Miller <djm@mindrot.org>]
3736 *) Give the OpenSSL applications more possibilities to make use of
3737 keys (public as well as private) handled by engines.
3740 *) Add OCSP code that comes from CertCo.
3743 *) Add VMS support for the Rijndael code.
3746 *) Added untested support for Nuron crypto accelerator.
3749 *) Add support for external cryptographic devices. This code was
3750 previously distributed separately as the "engine" branch.
3751 [Geoff Thorpe, Richard Levitte]
3753 *) Rework the filename-translation in the DSO code. It is now possible to
3754 have far greater control over how a "name" is turned into a filename
3755 depending on the operating environment and any oddities about the
3756 different shared library filenames on each system.
3759 *) Support threads on FreeBSD-elf in Configure.
3762 *) Fix for SHA1 assembly problem with MASM: it produces
3763 warnings about corrupt line number information when assembling
3764 with debugging information. This is caused by the overlapping
3766 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3769 NCONF_get_number() has no error checking at all. As a replacement,
3770 NCONF_get_number_e() is defined (_e for "error checking") and is
3771 promoted strongly. The old NCONF_get_number is kept around for
3772 binary backward compatibility.
3773 Make it possible for methods to load from something other than a BIO,
3774 by providing a function pointer that is given a name instead of a BIO.
3775 For example, this could be used to load configuration data from an
3779 *) Fix for non blocking accept BIOs. Added new I/O special reason
3780 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3781 with non blocking I/O was not possible because no retry code was
3782 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3786 *) Added the beginnings of Rijndael support.
3789 *) Fix for bug in DirectoryString mask setting. Add support for
3790 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3791 to allow certificate printing to more controllable, additional
3792 'certopt' option to 'x509' to allow new printing options to be
3796 *) Clean old EAY MD5 hack from e_os.h.
3799 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3801 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3802 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3803 [Joe Orton, Steve Henson]
3805 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3807 *) Fix additional bug revealed by the NISCC test suite:
3809 Stop bug triggering large recursion when presented with
3810 certain ASN.1 tags (CVE-2003-0851)
3813 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3815 *) Fix various bugs revealed by running the NISCC test suite:
3817 Stop out of bounds reads in the ASN1 code when presented with
3818 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3820 If verify callback ignores invalid public key errors don't try to check
3821 certificate signature with the NULL public key.
3825 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3826 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3830 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3831 extra data after the compression methods not only for TLS 1.0
3832 but also for SSL 3.0 (as required by the specification).
3833 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3835 *) Change X509_certificate_type() to mark the key as exported/exportable
3836 when it's 512 *bits* long, not 512 bytes.
3839 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3841 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3842 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3843 a protocol version number mismatch like a decryption error
3844 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3847 *) Turn on RSA blinding by default in the default implementation
3848 to avoid a timing attack. Applications that don't want it can call
3849 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3850 They would be ill-advised to do so in most cases.
3851 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3853 *) Change RSA blinding code so that it works when the PRNG is not
3854 seeded (in this case, the secret RSA exponent is abused as
3855 an unpredictable seed -- if it is not unpredictable, there
3856 is no point in blinding anyway). Make RSA blinding thread-safe
3857 by remembering the creator's thread ID in rsa->blinding and
3858 having all other threads use local one-time blinding factors
3859 (this requires more computation than sharing rsa->blinding, but
3860 avoids excessive locking; and if an RSA object is not shared
3861 between threads, blinding will still be very fast).
3864 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3866 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3867 via timing by performing a MAC computation even if incorrrect
3868 block cipher padding has been found. This is a countermeasure
3869 against active attacks where the attacker has to distinguish
3870 between bad padding and a MAC verification error. (CVE-2003-0078)
3872 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3873 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3874 Martin Vuagnoux (EPFL, Ilion)]
3876 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3878 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3879 memory from it's contents. This is done with a counter that will
3880 place alternating values in each byte. This can be used to solve
3881 two issues: 1) the removal of calls to memset() by highly optimizing
3882 compilers, and 2) cleansing with other values than 0, since those can
3883 be read through on certain media, for example a swap space on disk.
3886 *) Bugfix: client side session caching did not work with external caching,
3887 because the session->cipher setting was not restored when reloading
3888 from the external cache. This problem was masked, when
3889 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3890 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3893 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3894 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3895 [Zeev Lieber <zeev-l@yahoo.com>]
3897 *) Undo an undocumented change introduced in 0.9.6e which caused
3898 repeated calls to OpenSSL_add_all_ciphers() and
3899 OpenSSL_add_all_digests() to be ignored, even after calling
3903 *) Change the default configuration reader to deal with last line not
3904 being properly terminated.
3907 *) Change X509_NAME_cmp() so it applies the special rules on handling
3908 DN values that are of type PrintableString, as well as RDNs of type
3909 emailAddress where the value has the type ia5String.
3910 [stefank@valicert.com via Richard Levitte]
3912 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3913 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3914 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3915 the bitwise-OR of the two for use by the majority of applications
3916 wanting this behaviour, and update the docs. The documented
3917 behaviour and actual behaviour were inconsistent and had been
3918 changing anyway, so this is more a bug-fix than a behavioural
3920 [Geoff Thorpe, diagnosed by Nadav Har'El]
3922 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3923 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3926 *) Fix initialization code race conditions in
3927 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3928 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3929 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3930 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3931 ssl2_get_cipher_by_char(),
3932 ssl3_get_cipher_by_char().
3933 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3935 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3936 the cached sessions are flushed, as the remove_cb() might use ex_data
3937 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3938 (see [openssl.org #212]).
3939 [Geoff Thorpe, Lutz Jaenicke]
3941 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3942 length, instead of the encoding length to d2i_ASN1_OBJECT.
3945 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3947 *) [In 0.9.6g-engine release:]
3948 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3949 [Lynn Gazis <lgazis@rainbow.com>]
3951 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3953 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3954 and get fix the header length calculation.
3955 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3956 Alon Kantor <alonk@checkpoint.com> (and others),
3959 *) Use proper error handling instead of 'assertions' in buffer
3960 overflow checks added in 0.9.6e. This prevents DoS (the
3961 assertions could call abort()).
3962 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3964 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3966 *) Add various sanity checks to asn1_get_length() to reject
3967 the ASN1 length bytes if they exceed sizeof(long), will appear
3968 negative or the content length exceeds the length of the
3970 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3972 *) Fix cipher selection routines: ciphers without encryption had no flags
3973 for the cipher strength set and where therefore not handled correctly
3974 by the selection routines (PR #130).
3977 *) Fix EVP_dsa_sha macro.
3981 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3982 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3983 that was added in OpenSSL 0.9.6d.
3985 As the countermeasure turned out to be incompatible with some
3986 broken SSL implementations, the new option is part of SSL_OP_ALL.
3987 SSL_OP_ALL is usually employed when compatibility with weird SSL
3988 implementations is desired (e.g. '-bugs' option to 's_client' and
3989 's_server'), so the new option is automatically set in many
3993 *) Changes in security patch:
3995 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3996 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3997 Air Force Materiel Command, USAF, under agreement number
4000 *) Add various sanity checks to asn1_get_length() to reject
4001 the ASN1 length bytes if they exceed sizeof(long), will appear
4002 negative or the content length exceeds the length of the
4003 supplied buffer. (CVE-2002-0659)
4004 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4006 *) Assertions for various potential buffer overflows, not known to
4008 [Ben Laurie (CHATS)]
4010 *) Various temporary buffers to hold ASCII versions of integers were
4011 too small for 64 bit platforms. (CVE-2002-0655)
4012 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4014 *) Remote buffer overflow in SSL3 protocol - an attacker could
4015 supply an oversized session ID to a client. (CVE-2002-0656)
4016 [Ben Laurie (CHATS)]
4018 *) Remote buffer overflow in SSL2 protocol - an attacker could
4019 supply an oversized client master key. (CVE-2002-0656)
4020 [Ben Laurie (CHATS)]
4022 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4024 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4025 encoded as NULL) with id-dsa-with-sha1.
4026 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4028 *) Check various X509_...() return values in apps/req.c.
4029 [Nils Larsch <nla@trustcenter.de>]
4031 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4032 an end-of-file condition would erronously be flagged, when the CRLF
4033 was just at the end of a processed block. The bug was discovered when
4034 processing data through a buffering memory BIO handing the data to a
4035 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4036 <ptsekov@syntrex.com> and Nedelcho Stanev.
4039 *) Implement a countermeasure against a vulnerability recently found
4040 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4041 before application data chunks to avoid the use of known IVs
4042 with data potentially chosen by the attacker.
4045 *) Fix length checks in ssl3_get_client_hello().
4048 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4049 to prevent ssl3_read_internal() from incorrectly assuming that
4050 ssl3_read_bytes() found application data while handshake
4051 processing was enabled when in fact s->s3->in_read_app_data was
4052 merely automatically cleared during the initial handshake.
4053 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4055 *) Fix object definitions for Private and Enterprise: they were not
4056 recognized in their shortname (=lowercase) representation. Extend
4057 obj_dat.pl to issue an error when using undefined keywords instead
4058 of silently ignoring the problem (Svenning Sorensen
4059 <sss@sss.dnsalias.net>).
4062 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4063 generators, i.e. generators other than 2 and 5. (Previously, the
4064 code did not properly initialise the 'add' and 'rem' values to
4065 BN_generate_prime().)
4067 In the new general case, we do not insist that 'generator' is
4068 actually a primitive root: This requirement is rather pointless;
4069 a generator of the order-q subgroup is just as good, if not
4073 *) Map new X509 verification errors to alerts. Discovered and submitted by
4074 Tom Wu <tom@arcot.com>.
4077 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4078 returning non-zero before the data has been completely received
4079 when using non-blocking I/O.
4080 [Bodo Moeller; problem pointed out by John Hughes]
4082 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4083 [Ben Laurie, Lutz Jaenicke]
4085 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4086 Yoram Zahavi <YoramZ@gilian.com>).
4089 *) Add information about CygWin 1.3 and on, and preserve proper
4090 configuration for the versions before that.
4091 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4093 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4094 check whether we deal with a copy of a session and do not delete from
4095 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4096 <izhar@checkpoint.com>.
4099 *) Do not store session data into the internal session cache, if it
4100 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4101 flag is set). Proposed by Aslam <aslam@funk.com>.
4104 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4108 *) [In 0.9.6d-engine release:]
4109 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4110 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4112 *) Add the configuration target linux-s390x.
4113 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4115 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4116 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4117 variable as an indication that a ClientHello message has been
4118 received. As the flag value will be lost between multiple
4119 invocations of ssl3_accept when using non-blocking I/O, the
4120 function may not be aware that a handshake has actually taken
4121 place, thus preventing a new session from being added to the
4124 To avoid this problem, we now set s->new_session to 2 instead of
4125 using a local variable.
4126 [Lutz Jaenicke, Bodo Moeller]
4128 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4129 if the SSL_R_LENGTH_MISMATCH error is detected.
4130 [Geoff Thorpe, Bodo Moeller]
4132 *) New 'shared_ldflag' column in Configure platform table.
4135 *) Fix EVP_CIPHER_mode macro.
4136 ["Dan S. Camper" <dan@bti.net>]
4138 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4139 type, we must throw them away by setting rr->length to 0.
4140 [D P Chang <dpc@qualys.com>]
4142 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4144 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4145 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4146 worked incorrectly for those cases where range = 10..._2 and
4147 3*range is two bits longer than range.)
4150 *) Only add signing time to PKCS7 structures if it is not already
4154 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4155 OBJ_ld_ce should be OBJ_id_ce.
4156 Also some ip-pda OIDs in crypto/objects/objects.txt were
4157 incorrect (cf. RFC 3039).
4158 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4160 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4161 returns early because it has nothing to do.
4162 [Andy Schneider <andy.schneider@bjss.co.uk>]
4164 *) [In 0.9.6c-engine release:]
4165 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4166 [Andy Schneider <andy.schneider@bjss.co.uk>]
4168 *) [In 0.9.6c-engine release:]
4169 Add support for Cryptographic Appliance's keyserver technology.
4170 (Use engine 'keyclient')
4171 [Cryptographic Appliances and Geoff Thorpe]
4173 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4174 is called via tools/c89.sh because arguments have to be
4175 rearranged (all '-L' options must appear before the first object
4177 [Richard Shapiro <rshapiro@abinitio.com>]
4179 *) [In 0.9.6c-engine release:]
4180 Add support for Broadcom crypto accelerator cards, backported
4182 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4184 *) [In 0.9.6c-engine release:]
4185 Add support for SureWare crypto accelerator cards from
4186 Baltimore Technologies. (Use engine 'sureware')
4187 [Baltimore Technologies and Mark Cox]
4189 *) [In 0.9.6c-engine release:]
4190 Add support for crypto accelerator cards from Accelerated
4191 Encryption Processing, www.aep.ie. (Use engine 'aep')
4192 [AEP Inc. and Mark Cox]
4194 *) Add a configuration entry for gcc on UnixWare.
4195 [Gary Benson <gbenson@redhat.com>]
4197 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4198 messages are stored in a single piece (fixed-length part and
4199 variable-length part combined) and fix various bugs found on the way.
4202 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4203 instead. BIO_gethostbyname() does not know what timeouts are
4204 appropriate, so entries would stay in cache even when they have
4206 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4208 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4209 faced with a pathologically small ClientHello fragment that does
4210 not contain client_version: Instead of aborting with an error,
4211 simply choose the highest available protocol version (i.e.,
4212 TLS 1.0 unless it is disabled). In practice, ClientHello
4213 messages are never sent like this, but this change gives us
4214 strictly correct behaviour at least for TLS.
4217 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4218 never resets s->method to s->ctx->method when called from within
4219 one of the SSL handshake functions.
4220 [Bodo Moeller; problem pointed out by Niko Baric]
4222 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4223 (sent using the client's version number) if client_version is
4224 smaller than the protocol version in use. Also change
4225 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4226 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4227 the client will at least see that alert.
4230 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4234 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4235 client receives HelloRequest while in a handshake.
4236 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4238 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4239 should end in 'break', not 'goto end' which circuments various
4240 cleanups done in state SSL_ST_OK. But session related stuff
4241 must be disabled for SSL_ST_OK in the case that we just sent a
4244 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4245 before just sending a HelloRequest.
4246 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4248 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4249 reveal whether illegal block cipher padding was found or a MAC
4250 verification error occured. (Neither SSLerr() codes nor alerts
4251 are directly visible to potential attackers, but the information
4252 may leak via logfiles.)
4254 Similar changes are not required for the SSL 2.0 implementation
4255 because the number of padding bytes is sent in clear for SSL 2.0,
4256 and the extra bytes are just ignored. However ssl/s2_pkt.c
4257 failed to verify that the purported number of padding bytes is in
4261 *) Add OpenUNIX-8 support including shared libraries
4262 (Boyd Lynn Gerber <gerberb@zenez.com>).
4265 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4266 'wristwatch attack' using huge encoding parameters (cf.
4267 James H. Manger's CRYPTO 2001 paper). Note that the
4268 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4269 encoding parameters and hence was not vulnerable.
4272 *) BN_sqr() bug fix.
4273 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4275 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4276 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4277 followed by modular reduction.
4278 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4280 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4281 equivalent based on BN_pseudo_rand() instead of BN_rand().
4284 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4285 This function was broken, as the check for a new client hello message
4286 to handle SGC did not allow these large messages.
4287 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4290 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4293 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4294 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4297 *) Rework the configuration and shared library support for Tru64 Unix.
4298 The configuration part makes use of modern compiler features and
4299 still retains old compiler behavior for those that run older versions
4300 of the OS. The shared library support part includes a variant that
4301 uses the RPATH feature, and is available through the special
4302 configuration target "alpha-cc-rpath", which will never be selected
4304 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4306 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4307 with the same message size as in ssl3_get_certificate_request().
4308 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4309 messages might inadvertently be reject as too long.
4310 [Petr Lampa <lampa@fee.vutbr.cz>]
4312 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4315 *) Modified SSL library such that the verify_callback that has been set
4316 specificly for an SSL object with SSL_set_verify() is actually being
4317 used. Before the change, a verify_callback set with this function was
4318 ignored and the verify_callback() set in the SSL_CTX at the time of
4319 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4320 to allow the necessary settings.
4323 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4324 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4325 done automatically (in contradiction to the requirements of the C
4326 standard). This made problems when used from OpenSSH.
4329 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4330 dh->length and always used
4332 BN_rand_range(priv_key, dh->p).
4334 BN_rand_range() is not necessary for Diffie-Hellman, and this
4335 specific range makes Diffie-Hellman unnecessarily inefficient if
4336 dh->length (recommended exponent length) is much smaller than the
4337 length of dh->p. We could use BN_rand_range() if the order of
4338 the subgroup was stored in the DH structure, but we only have
4343 BN_rand(priv_key, l, ...)
4345 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4351 RSA_eay_public_encrypt
4352 RSA_eay_private_decrypt
4353 RSA_eay_private_encrypt (signing)
4354 RSA_eay_public_decrypt (signature verification)
4356 (default implementations for RSA_public_encrypt,
4357 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4358 always reject numbers >= n.
4361 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4362 to synchronize access to 'locking_thread'. This is necessary on
4363 systems where access to 'locking_thread' (an 'unsigned long'
4364 variable) is not atomic.
4367 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4368 *before* setting the 'crypto_lock_rand' flag. The previous code had
4369 a race condition if 0 is a valid thread ID.
4370 [Travis Vitek <vitek@roguewave.com>]
4372 *) Add support for shared libraries under Irix.
4373 [Albert Chin-A-Young <china@thewrittenword.com>]
4375 *) Add configuration option to build on Linux on both big-endian and
4377 [Ralf Baechle <ralf@uni-koblenz.de>]
4379 *) Add the possibility to create shared libraries on HP-UX.
4382 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4384 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4385 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4386 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4387 PRNG state recovery was possible based on the output of
4388 one PRNG request appropriately sized to gain knowledge on
4389 'md' followed by enough consecutive 1-byte PRNG requests
4390 to traverse all of 'state'.
4392 1. When updating 'md_local' (the current thread's copy of 'md')
4393 during PRNG output generation, hash all of the previous
4394 'md_local' value, not just the half used for PRNG output.
4396 2. Make the number of bytes from 'state' included into the hash
4397 independent from the number of PRNG bytes requested.
4399 The first measure alone would be sufficient to avoid
4400 Markku-Juhani's attack. (Actually it had never occurred
4401 to me that the half of 'md_local' used for chaining was the
4402 half from which PRNG output bytes were taken -- I had always
4403 assumed that the secret half would be used.) The second
4404 measure makes sure that additional data from 'state' is never
4405 mixed into 'md_local' in small portions; this heuristically
4406 further strengthens the PRNG.
4409 *) Fix crypto/bn/asm/mips3.s.
4412 *) When only the key is given to "enc", the IV is undefined. Print out
4413 an error message in this case.
4416 *) Handle special case when X509_NAME is empty in X509 printing routines.
4419 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4420 positive and less than q.
4423 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4424 used: it isn't thread safe and the add_lock_callback should handle
4426 [Paul Rose <Paul.Rose@bridge.com>]
4428 *) Verify that incoming data obeys the block size in
4429 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4433 [Ulf Möller, Bodo Möller]
4435 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4436 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4437 when fixing the server behaviour for backwards-compatible 'client
4438 hello' messages. (Note that the attack is impractical against
4439 SSL 3.0 and TLS 1.0 anyway because length and version checking
4440 means that the probability of guessing a valid ciphertext is
4441 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4444 Before 0.9.5, the countermeasure (hide the error by generating a
4445 random 'decryption result') did not work properly because
4446 ERR_clear_error() was missing, meaning that SSL_get_error() would
4447 detect the supposedly ignored error.
4449 Both problems are now fixed.
4452 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4453 (previously it was 1024).
4456 *) Fix for compatibility mode trust settings: ignore trust settings
4457 unless some valid trust or reject settings are present.
4460 *) Fix for blowfish EVP: its a variable length cipher.
4463 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4464 parameters in DSA public key structures and return an error in the
4465 DSA routines if parameters are absent.
4468 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4469 in the current directory if neither $RANDFILE nor $HOME was set.
4470 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4471 caused some confusion to Windows users who haven't defined $HOME.
4472 Thus RAND_file_name() is changed again: e_os.h can define a
4473 DEFAULT_HOME, which will be used if $HOME is not set.
4474 For Windows, we use "C:"; on other platforms, we still require
4475 environment variables.
4477 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4478 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4479 having multiple threads call RAND_poll() concurrently.
4482 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4483 combination of a flag and a thread ID variable.
4484 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4485 flag), *other* threads can enter ssleay_add_bytes without obeying
4486 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4487 that they do not hold after the first thread unsets add_do_not_lock).
4490 *) Change bctest again: '-x' expressions are not available in all
4494 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4496 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4497 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4499 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4500 the default extension for executables, if any. Also, make the perl
4501 scripts that use symlink() to test if it really exists and use "cp"
4502 if it doesn't. All this made OpenSSL compilable and installable in
4506 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4507 If SEQUENCE is length is indefinite just set c->slen to the total
4508 amount of data available.
4509 [Steve Henson, reported by shige@FreeBSD.org]
4510 [This change does not apply to 0.9.7.]
4512 *) Change bctest to avoid here-documents inside command substitution
4513 (workaround for FreeBSD /bin/sh bug).
4514 For compatibility with Ultrix, avoid shell functions (introduced
4515 in the bctest version that searches along $PATH).
4518 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4519 with des_encrypt() defined on some operating systems, like Solaris
4523 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4524 On the Importance of Eliminating Errors in Cryptographic
4525 Computations, J. Cryptology 14 (2001) 2, 101-119,
4526 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4529 *) MIPS assembler BIGNUM division bug fix.
4532 *) Disabled incorrect Alpha assembler code.
4535 *) Fix PKCS#7 decode routines so they correctly update the length
4536 after reading an EOC for the EXPLICIT tag.
4538 [This change does not apply to 0.9.7.]
4540 *) Fix bug in PKCS#12 key generation routines. This was triggered
4541 if a 3DES key was generated with a 0 initial byte. Include
4542 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4543 (but broken) behaviour.
4546 *) Enhance bctest to search for a working bc along $PATH and print
4548 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4550 *) Fix memory leaks in err.c: free err_data string if necessary;
4551 don't write to the wrong index in ERR_set_error_data.
4554 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4558 *) Replace rdtsc with _emit statements for VC++ version 5.
4559 [Jeremy Cooper <jeremy@baymoo.org>]
4561 *) Make it possible to reuse SSLv2 sessions.
4564 *) In copy_email() check for >= 0 as a return value for
4565 X509_NAME_get_index_by_NID() since 0 is a valid index.
4566 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4568 *) Avoid coredump with unsupported or invalid public keys by checking if
4569 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4570 PKCS7_verify() fails with non detached data.
4573 *) Don't use getenv in library functions when run as setuid/setgid.
4574 New function OPENSSL_issetugid().
4577 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4578 due to incorrect handling of multi-threading:
4580 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4582 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4584 3. Count how many times MemCheck_off() has been called so that
4585 nested use can be treated correctly. This also avoids
4586 inband-signalling in the previous code (which relied on the
4587 assumption that thread ID 0 is impossible).
4590 *) Add "-rand" option also to s_client and s_server.
4593 *) Fix CPU detection on Irix 6.x.
4594 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4595 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4597 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4600 [This change does not apply to 0.9.7.]
4602 *) Use the cached encoding of an X509_NAME structure rather than
4603 copying it. This is apparently the reason for the libsafe "errors"
4604 but the code is actually correct.
4607 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4608 Bleichenbacher's DSA attack.
4609 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4610 to be set and top=0 forces the highest bit to be set; top=-1 is new
4611 and leaves the highest bit random.
4612 [Ulf Moeller, Bodo Moeller]
4614 *) In the NCONF_...-based implementations for CONF_... queries
4615 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4616 a temporary CONF structure with the data component set to NULL
4617 (which gives segmentation faults in lh_retrieve).
4618 Instead, use NULL for the CONF pointer in CONF_get_string and
4619 CONF_get_number (which may use environment variables) and directly
4620 return NULL from CONF_get_section.
4623 *) Fix potential buffer overrun for EBCDIC.
4626 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4627 keyUsage if basicConstraints absent for a CA.
4630 *) Make SMIME_write_PKCS7() write mail header values with a format that
4631 is more generally accepted (no spaces before the semicolon), since
4632 some programs can't parse those values properly otherwise. Also make
4633 sure BIO's that break lines after each write do not create invalid
4637 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4638 macros previously used would not encode an empty SEQUENCE OF
4639 and break the signature.
4641 [This change does not apply to 0.9.7.]
4643 *) Zero the premaster secret after deriving the master secret in
4647 *) Add some EVP_add_digest_alias registrations (as found in
4648 OpenSSL_add_all_digests()) to SSL_library_init()
4649 aka OpenSSL_add_ssl_algorithms(). This provides improved
4650 compatibility with peers using X.509 certificates
4651 with unconventional AlgorithmIdentifier OIDs.
4654 *) Fix for Irix with NO_ASM.
4655 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4657 *) ./config script fixes.
4658 [Ulf Moeller, Richard Levitte]
4660 *) Fix 'openssl passwd -1'.
4663 *) Change PKCS12_key_gen_asc() so it can cope with non null
4664 terminated strings whose length is passed in the passlen
4665 parameter, for example from PEM callbacks. This was done
4666 by adding an extra length parameter to asc2uni().
4667 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4669 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4670 call failed, free the DSA structure.
4673 *) Fix to uni2asc() to cope with zero length Unicode strings.
4674 These are present in some PKCS#12 files.
4677 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4678 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4679 when writing a 32767 byte record.
4680 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4682 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4683 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4685 (RSA objects have a reference count access to which is protected
4686 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4687 so they are meant to be shared between threads.)
4688 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4689 "Reddie, Steven" <Steven.Reddie@ca.com>]
4691 *) Fix a deadlock in CRYPTO_mem_leaks().
4694 *) Use better test patterns in bntest.
4697 *) rand_win.c fix for Borland C.
4700 *) BN_rshift bugfix for n == 0.
4703 *) Add a 'bctest' script that checks for some known 'bc' bugs
4704 so that 'make test' does not abort just because 'bc' is broken.
4707 *) Store verify_result within SSL_SESSION also for client side to
4708 avoid potential security hole. (Re-used sessions on the client side
4709 always resulted in verify_result==X509_V_OK, not using the original
4710 result of the server certificate verification.)
4713 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4714 SSL3_RT_APPLICATION_DATA, return 0.
4715 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4719 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4720 releases, have been re-implemented by renaming the previous
4721 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4722 and ssl3_read_internal, respectively, and adding 'peek' parameters
4723 to them. The new ssl[23]_{read,peek} functions are calls to
4724 ssl[23]_read_internal with the 'peek' flag set appropriately.
4725 A 'peek' parameter has also been added to ssl3_read_bytes, which
4726 does the actual work for ssl3_read_internal.
4729 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4730 the method-specific "init()" handler. Also clean up ex_data after
4731 calling the method-specific "finish()" handler. Previously, this was
4732 happening the other way round.
4735 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4736 The previous value, 12, was not always sufficient for BN_mod_exp().
4739 *) Make sure that shared libraries get the internal name engine with
4740 the full version number and not just 0. This should mark the
4741 shared libraries as not backward compatible. Of course, this should
4742 be changed again when we can guarantee backward binary compatibility.
4745 *) Fix typo in get_cert_by_subject() in by_dir.c
4746 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4748 *) Rework the system to generate shared libraries:
4750 - Make note of the expected extension for the shared libraries and
4751 if there is a need for symbolic links from for example libcrypto.so.0
4752 to libcrypto.so.0.9.7. There is extended info in Configure for
4755 - Make as few rebuilds of the shared libraries as possible.
4757 - Still avoid linking the OpenSSL programs with the shared libraries.
4759 - When installing, install the shared libraries separately from the
4763 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4765 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4766 and not in SSL_clear because the latter is also used by the
4767 accept/connect functions; previously, the settings made by
4768 SSL_set_read_ahead would be lost during the handshake.
4769 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4771 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4772 Previously, it would create entries for disableed algorithms no
4776 *) Added several new manual pages for SSL_* function.
4779 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4781 *) In ssl23_get_client_hello, generate an error message when faced
4782 with an initial SSL 3.0/TLS record that is too small to contain the
4783 first two bytes of the ClientHello message, i.e. client_version.
4784 (Note that this is a pathologic case that probably has never happened
4785 in real life.) The previous approach was to use the version number
4786 from the record header as a substitute; but our protocol choice
4787 should not depend on that one because it is not authenticated
4788 by the Finished messages.
4791 *) More robust randomness gathering functions for Windows.
4792 [Jeffrey Altman <jaltman@columbia.edu>]
4794 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4795 not set then we don't setup the error code for issuer check errors
4796 to avoid possibly overwriting other errors which the callback does
4797 handle. If an application does set the flag then we assume it knows
4798 what it is doing and can handle the new informational codes
4802 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4803 a general "ANY" type, as such it should be able to decode anything
4804 including tagged types. However it didn't check the class so it would
4805 wrongly interpret tagged types in the same way as their universal
4806 counterpart and unknown types were just rejected. Changed so that the
4807 tagged and unknown types are handled in the same way as a SEQUENCE:
4808 that is the encoding is stored intact. There is also a new type
4809 "V_ASN1_OTHER" which is used when the class is not universal, in this
4810 case we have no idea what the actual type is so we just lump them all
4814 *) On VMS, stdout may very well lead to a file that is written to
4815 in a record-oriented fashion. That means that every write() will
4816 write a separate record, which will be read separately by the
4817 programs trying to read from it. This can be very confusing.
4819 The solution is to put a BIO filter in the way that will buffer
4820 text until a linefeed is reached, and then write everything a
4821 line at a time, so every record written will be an actual line,
4822 not chunks of lines and not (usually doesn't happen, but I've
4823 seen it once) several lines in one record. BIO_f_linebuffer() is
4826 Currently, it's a VMS-only method, because that's where it has
4827 been tested well enough.
4830 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4831 it can return incorrect results.
4832 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4833 but it was in 0.9.6-beta[12].)
4836 *) Disable the check for content being present when verifying detached
4837 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4838 include zero length content when signing messages.
4841 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4842 BIO_ctrl (for BIO pairs).
4845 *) Add DSO method for VMS.
4848 *) Bug fix: Montgomery multiplication could produce results with the
4852 *) Add RPM specification openssl.spec and modify it to build three
4853 packages. The default package contains applications, application
4854 documentation and run-time libraries. The devel package contains
4855 include files, static libraries and function documentation. The
4856 doc package contains the contents of the doc directory. The original
4857 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4860 *) Add a large number of documentation files for many SSL routines.
4861 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4863 *) Add a configuration entry for Sony News 4.
4864 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4866 *) Don't set the two most significant bits to one when generating a
4867 random number < q in the DSA library.
4870 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4871 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4872 the underlying transport is blocking) if a handshake took place.
4873 (The default behaviour is needed by applications such as s_client
4874 and s_server that use select() to determine when to use SSL_read;
4875 but for applications that know in advance when to expect data, it
4876 just makes things more complicated.)
4879 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4883 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4884 work better on such systems.
4885 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4887 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4888 Update PKCS12_parse() so it copies the friendlyName and the
4889 keyid to the certificates aux info.
4892 *) Fix bug in PKCS7_verify() which caused an infinite loop
4893 if there was more than one signature.
4894 [Sven Uszpelkat <su@celocom.de>]
4896 *) Major change in util/mkdef.pl to include extra information
4897 about each symbol, as well as presentig variables as well
4898 as functions. This change means that there's n more need
4899 to rebuild the .num files when some algorithms are excluded.
4902 *) Allow the verify time to be set by an application,
4903 rather than always using the current time.
4906 *) Phase 2 verify code reorganisation. The certificate
4907 verify code now looks up an issuer certificate by a
4908 number of criteria: subject name, authority key id
4909 and key usage. It also verifies self signed certificates
4910 by the same criteria. The main comparison function is
4911 X509_check_issued() which performs these checks.
4913 Lot of changes were necessary in order to support this
4914 without completely rewriting the lookup code.
4916 Authority and subject key identifier are now cached.
4918 The LHASH 'certs' is X509_STORE has now been replaced
4919 by a STACK_OF(X509_OBJECT). This is mainly because an
4920 LHASH can't store or retrieve multiple objects with
4921 the same hash value.
4923 As a result various functions (which were all internal
4924 use only) have changed to handle the new X509_STORE
4925 structure. This will break anything that messed round
4926 with X509_STORE internally.
4928 The functions X509_STORE_add_cert() now checks for an
4929 exact match, rather than just subject name.
4931 The X509_STORE API doesn't directly support the retrieval
4932 of multiple certificates matching a given criteria, however
4933 this can be worked round by performing a lookup first
4934 (which will fill the cache with candidate certificates)
4935 and then examining the cache for matches. This is probably
4936 the best we can do without throwing out X509_LOOKUP
4937 entirely (maybe later...).
4939 The X509_VERIFY_CTX structure has been enhanced considerably.
4941 All certificate lookup operations now go via a get_issuer()
4942 callback. Although this currently uses an X509_STORE it
4943 can be replaced by custom lookups. This is a simple way
4944 to bypass the X509_STORE hackery necessary to make this
4945 work and makes it possible to use more efficient techniques
4946 in future. A very simple version which uses a simple
4947 STACK for its trusted certificate store is also provided
4948 using X509_STORE_CTX_trusted_stack().
4950 The verify_cb() and verify() callbacks now have equivalents
4951 in the X509_STORE_CTX structure.
4953 X509_STORE_CTX also has a 'flags' field which can be used
4954 to customise the verify behaviour.
4957 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4958 excludes S/MIME capabilities.
4961 *) When a certificate request is read in keep a copy of the
4962 original encoding of the signed data and use it when outputing
4963 again. Signatures then use the original encoding rather than
4964 a decoded, encoded version which may cause problems if the
4965 request is improperly encoded.
4968 *) For consistency with other BIO_puts implementations, call
4969 buffer_write(b, ...) directly in buffer_puts instead of calling
4972 In BIO_puts, increment b->num_write as in BIO_write.
4973 [Peter.Sylvester@EdelWeb.fr]
4975 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4976 BN_zero, we may not return a BIGNUM with an array consisting of
4980 *) Avoid calling abort() from within the library when problems are
4981 detected, except if preprocessor symbols have been defined
4982 (such as REF_CHECK, BN_DEBUG etc.).
4985 *) New openssl application 'rsautl'. This utility can be
4986 used for low level RSA operations. DER public key
4987 BIO/fp routines also added.
4990 *) New Configure entry and patches for compiling on QNX 4.
4991 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4993 *) A demo state-machine implementation was sponsored by
4994 Nuron (http://www.nuron.com/) and is now available in
4995 demos/state_machine.
4998 *) New options added to the 'dgst' utility for signature
4999 generation and verification.
5002 *) Unrecognized PKCS#7 content types are now handled via a
5003 catch all ASN1_TYPE structure. This allows unsupported
5004 types to be stored as a "blob" and an application can
5005 encode and decode it manually.
5008 *) Fix various signed/unsigned issues to make a_strex.c
5010 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5012 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5013 length if passed a buffer. ASN1_INTEGER_to_BN failed
5014 if passed a NULL BN and its argument was negative.
5015 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5017 *) Modification to PKCS#7 encoding routines to output definite
5018 length encoding. Since currently the whole structures are in
5019 memory there's not real point in using indefinite length
5020 constructed encoding. However if OpenSSL is compiled with
5021 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5024 *) Added BIO_vprintf() and BIO_vsnprintf().
5027 *) Added more prefixes to parse for in the the strings written
5028 through a logging bio, to cover all the levels that are available
5029 through syslog. The prefixes are now:
5031 PANIC, EMERG, EMR => LOG_EMERG
5032 ALERT, ALR => LOG_ALERT
5033 CRIT, CRI => LOG_CRIT
5034 ERROR, ERR => LOG_ERR
5035 WARNING, WARN, WAR => LOG_WARNING
5036 NOTICE, NOTE, NOT => LOG_NOTICE
5037 INFO, INF => LOG_INFO
5038 DEBUG, DBG => LOG_DEBUG
5040 and as before, if none of those prefixes are present at the
5041 beginning of the string, LOG_ERR is chosen.
5043 On Win32, the LOG_* levels are mapped according to this:
5045 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5046 LOG_WARNING => EVENTLOG_WARNING_TYPE
5047 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5051 *) Made it possible to reconfigure with just the configuration
5052 argument "reconf" or "reconfigure". The command line arguments
5053 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5054 and are retrieved from there when reconfiguring.
5058 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5060 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5063 *) The obj_dat.pl script was messing up the sorting of object
5064 names. The reason was that it compared the quoted version
5065 of strings as a result "OCSP" > "OCSP Signing" because
5066 " > SPACE. Changed script to store unquoted versions of
5067 names and add quotes on output. It was also omitting some
5068 names from the lookup table if they were given a default
5069 value (that is if SN is missing it is given the same
5070 value as LN and vice versa), these are now added on the
5071 grounds that if an object has a name we should be able to
5072 look it up. Finally added warning output when duplicate
5073 short or long names are found.
5076 *) Changes needed for Tandem NSK.
5077 [Scott Uroff <scott@xypro.com>]
5079 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5080 RSA_padding_check_SSLv23(), special padding was never detected
5081 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5082 version rollback attacks was not effective.
5084 In s23_clnt.c, don't use special rollback-attack detection padding
5085 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5086 client; similarly, in s23_srvr.c, don't do the rollback check if
5087 SSL 2.0 is the only protocol enabled in the server.
5090 *) Make it possible to get hexdumps of unprintable data with 'openssl
5091 asn1parse'. By implication, the functions ASN1_parse_dump() and
5092 BIO_dump_indent() are added.
5095 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5096 these print out strings and name structures based on various
5097 flags including RFC2253 support and proper handling of
5098 multibyte characters. Added options to the 'x509' utility
5099 to allow the various flags to be set.
5102 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5103 Also change the functions X509_cmp_current_time() and
5104 X509_gmtime_adj() work with an ASN1_TIME structure,
5105 this will enable certificates using GeneralizedTime in validity
5106 dates to be checked.
5109 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5110 negative public key encodings) on by default,
5111 NO_NEG_PUBKEY_BUG can be set to disable it.
5114 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5115 content octets. An i2c_ASN1_OBJECT is unnecessary because
5116 the encoding can be trivially obtained from the structure.
5119 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5120 not read locks (CRYPTO_r_[un]lock).
5123 *) A first attempt at creating official support for shared
5124 libraries through configuration. I've kept it so the
5125 default is static libraries only, and the OpenSSL programs
5126 are always statically linked for now, but there are
5127 preparations for dynamic linking in place.
5128 This has been tested on Linux and Tru64.
5131 *) Randomness polling function for Win9x, as described in:
5132 Peter Gutmann, Software Generation of Practically Strong
5136 *) Fix so PRNG is seeded in req if using an already existing
5140 *) New options to smime application. -inform and -outform
5141 allow alternative formats for the S/MIME message including
5142 PEM and DER. The -content option allows the content to be
5143 specified separately. This should allow things like Netscape
5144 form signing output easier to verify.
5147 *) Fix the ASN1 encoding of tags using the 'long form'.
5150 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5151 STRING types. These convert content octets to and from the
5152 underlying type. The actual tag and length octets are
5153 already assumed to have been read in and checked. These
5154 are needed because all other string types have virtually
5155 identical handling apart from the tag. By having versions
5156 of the ASN1 functions that just operate on content octets
5157 IMPLICIT tagging can be handled properly. It also allows
5158 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5159 and ASN1_INTEGER are identical apart from the tag.
5162 *) Change the handling of OID objects as follows:
5164 - New object identifiers are inserted in objects.txt, following
5165 the syntax given in objects.README.
5166 - objects.pl is used to process obj_mac.num and create a new
5168 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5171 This is currently kind of a hack, and the perl code in objects.pl
5172 isn't very elegant, but it works as I intended. The simplest way
5173 to check that it worked correctly is to look in obj_dat.h and
5174 check the array nid_objs and make sure the objects haven't moved
5175 around (this is important!). Additions are OK, as well as
5176 consistent name changes.
5179 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5182 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5183 The given file adds to whatever has already been seeded into the
5184 random pool through the RANDFILE configuration file option or
5185 environment variable, or the default random state file.
5188 *) mkstack.pl now sorts each macro group into lexical order.
5189 Previously the output order depended on the order the files
5190 appeared in the directory, resulting in needless rewriting
5194 *) Patches to make OpenSSL compile under Win32 again. Mostly
5195 work arounds for the VC++ problem that it treats func() as
5196 func(void). Also stripped out the parts of mkdef.pl that
5197 added extra typesafe functions: these no longer exist.
5200 *) Reorganisation of the stack code. The macros are now all
5201 collected in safestack.h . Each macro is defined in terms of
5202 a "stack macro" of the form SKM_<name>(type, a, b). The
5203 DEBUG_SAFESTACK is now handled in terms of function casts,
5204 this has the advantage of retaining type safety without the
5205 use of additional functions. If DEBUG_SAFESTACK is not defined
5206 then the non typesafe macros are used instead. Also modified the
5207 mkstack.pl script to handle the new form. Needs testing to see
5208 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5209 the default if no major problems. Similar behaviour for ASN1_SET_OF
5210 and PKCS12_STACK_OF.
5213 *) When some versions of IIS use the 'NET' form of private key the
5214 key derivation algorithm is different. Normally MD5(password) is
5215 used as a 128 bit RC4 key. In the modified case
5216 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5217 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5218 as the old Netscape_RSA functions except they have an additional
5219 'sgckey' parameter which uses the modified algorithm. Also added
5220 an -sgckey command line option to the rsa utility. Thanks to
5221 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5222 algorithm to openssl-dev.
5225 *) The evp_local.h macros were using 'c.##kname' which resulted in
5226 invalid expansion on some systems (SCO 5.0.5 for example).
5227 Corrected to 'c.kname'.
5228 [Phillip Porch <root@theporch.com>]
5230 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5231 a STACK of email addresses from a certificate or request, these look
5232 in the subject name and the subject alternative name extensions and
5233 omit any duplicate addresses.
5236 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5237 This makes DSA verification about 2 % faster.
5240 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5241 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5242 plus overhead for 1024 bit moduli).
5243 This makes exponentiations about 0.5 % faster for 1024 bit
5244 exponents (as measured by "openssl speed rsa2048").
5247 *) Rename memory handling macros to avoid conflicts with other
5249 Malloc => OPENSSL_malloc
5250 Malloc_locked => OPENSSL_malloc_locked
5251 Realloc => OPENSSL_realloc
5252 Free => OPENSSL_free
5255 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5256 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5259 *) CygWin32 support.
5260 [John Jarvie <jjarvie@newsguy.com>]
5262 *) The type-safe stack code has been rejigged. It is now only compiled
5263 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5264 by default all type-specific stack functions are "#define"d back to
5265 standard stack functions. This results in more streamlined output
5266 but retains the type-safety checking possibilities of the original
5270 *) The STACK code has been cleaned up, and certain type declarations
5271 that didn't make a lot of sense have been brought in line. This has
5272 also involved a cleanup of sorts in safestack.h to more correctly
5273 map type-safe stack functions onto their plain stack counterparts.
5274 This work has also resulted in a variety of "const"ifications of
5275 lots of the code, especially "_cmp" operations which should normally
5276 be prototyped with "const" parameters anyway.
5279 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5280 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5281 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5282 where all of 'md' is used each time the PRNG is used, but 'state'
5283 is used only indexed by a cyclic counter. As entropy may not be
5284 well distributed from the beginning, 'md' is important as a
5285 chaining variable. However, the output function chains only half
5286 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5287 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5288 in all of 'state' being rewritten, with the new values depending
5289 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5292 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5293 the handshake is continued after ssl_verify_cert_chain();
5294 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5295 can lead to 'unexplainable' connection aborts later.
5296 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5298 *) Major EVP API cipher revision.
5299 Add hooks for extra EVP features. This allows various cipher
5300 parameters to be set in the EVP interface. Support added for variable
5301 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5302 setting of RC2 and RC5 parameters.
5304 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5307 Remove lots of duplicated code from the EVP library. For example *every*
5308 cipher init() function handles the 'iv' in the same way according to the
5309 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5310 for CFB and OFB modes they zero ctx->num.
5312 New functionality allows removal of S/MIME code RC2 hack.
5314 Most of the routines have the same form and so can be declared in terms
5317 By shifting this to the top level EVP_CipherInit() it can be removed from
5318 all individual ciphers. If the cipher wants to handle IVs or keys
5319 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5322 Change lots of functions like EVP_EncryptUpdate() to now return a
5323 value: although software versions of the algorithms cannot fail
5324 any installed hardware versions can.
5327 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5328 this option is set, tolerate broken clients that send the negotiated
5329 protocol version number instead of the requested protocol version
5333 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5334 i.e. non-zero for export ciphersuites, zero otherwise.
5335 Previous versions had this flag inverted, inconsistent with
5336 rsa_tmp_cb (..._TMP_RSA_CB).
5337 [Bodo Moeller; problem reported by Amit Chopra]
5339 *) Add missing DSA library text string. Work around for some IIS
5340 key files with invalid SEQUENCE encoding.
5343 *) Add a document (doc/standards.txt) that list all kinds of standards
5344 and so on that are implemented in OpenSSL.
5347 *) Enhance c_rehash script. Old version would mishandle certificates
5348 with the same subject name hash and wouldn't handle CRLs at all.
5349 Added -fingerprint option to crl utility, to support new c_rehash
5353 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5356 *) Fix for SSL server purpose checking. Server checking was
5357 rejecting certificates which had extended key usage present
5358 but no ssl client purpose.
5359 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5361 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5362 is a little unclear about how a blank password is handled.
5363 Since the password in encoded as a BMPString with terminating
5364 double NULL a zero length password would end up as just the
5365 double NULL. However no password at all is different and is
5366 handled differently in the PKCS#12 key generation code. NS
5367 treats a blank password as zero length. MSIE treats it as no
5368 password on export: but it will try both on import. We now do
5369 the same: PKCS12_parse() tries zero length and no password if
5370 the password is set to "" or NULL (NULL is now a valid password:
5371 it wasn't before) as does the pkcs12 application.
5374 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5375 perror when PEM_read_bio_X509_REQ fails, the error message must
5376 be obtained from the error queue.
5379 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5380 it in ERR_remove_state if appropriate, and change ERR_get_state
5381 accordingly to avoid race conditions (this is necessary because
5382 thread_hash is no longer constant once set).
5385 *) Bugfix for linux-elf makefile.one.
5388 *) RSA_get_default_method() will now cause a default
5389 RSA_METHOD to be chosen if one doesn't exist already.
5390 Previously this was only set during a call to RSA_new()
5391 or RSA_new_method(NULL) meaning it was possible for
5392 RSA_get_default_method() to return NULL.
5395 *) Added native name translation to the existing DSO code
5396 that will convert (if the flag to do so is set) filenames
5397 that are sufficiently small and have no path information
5398 into a canonical native form. Eg. "blah" converted to
5399 "libblah.so" or "blah.dll" etc.
5402 *) New function ERR_error_string_n(e, buf, len) which is like
5403 ERR_error_string(e, buf), but writes at most 'len' bytes
5404 including the 0 terminator. For ERR_error_string_n, 'buf'
5406 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5408 *) CONF library reworked to become more general. A new CONF
5409 configuration file reader "class" is implemented as well as a
5410 new functions (NCONF_*, for "New CONF") to handle it. The now
5411 old CONF_* functions are still there, but are reimplemented to
5412 work in terms of the new functions. Also, a set of functions
5413 to handle the internal storage of the configuration data is
5414 provided to make it easier to write new configuration file
5415 reader "classes" (I can definitely see something reading a
5416 configuration file in XML format, for example), called _CONF_*,
5417 or "the configuration storage API"...
5419 The new configuration file reading functions are:
5421 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5422 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5424 NCONF_default, NCONF_WIN32
5426 NCONF_dump_fp, NCONF_dump_bio
5428 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5429 NCONF_new creates a new CONF object. This works in the same way
5430 as other interfaces in OpenSSL, like the BIO interface.
5431 NCONF_dump_* dump the internal storage of the configuration file,
5432 which is useful for debugging. All other functions take the same
5433 arguments as the old CONF_* functions wth the exception of the
5434 first that must be a `CONF *' instead of a `LHASH *'.
5436 To make it easer to use the new classes with the old CONF_* functions,
5437 the function CONF_set_default_method is provided.
5440 *) Add '-tls1' option to 'openssl ciphers', which was already
5441 mentioned in the documentation but had not been implemented.
5442 (This option is not yet really useful because even the additional
5443 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5446 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5447 OpenSSL-based applications) load shared libraries and bind to
5448 them in a portable way.
5449 [Geoff Thorpe, with contributions from Richard Levitte]
5451 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5453 *) Make sure _lrotl and _lrotr are only used with MSVC.
5455 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5456 (the default implementation of RAND_status).
5458 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5459 to '-clrext' (= clear extensions), as intended and documented.
5460 [Bodo Moeller; inconsistency pointed out by Michael Attili
5463 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5464 was larger than the MD block size.
5465 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5467 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5468 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5469 using the passed key: if the passed key was a private key the result
5470 of X509_print(), for example, would be to print out all the private key
5474 *) des_quad_cksum() byte order bug fix.
5475 [Ulf Möller, using the problem description in krb4-0.9.7, where
5476 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5478 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5480 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5482 *) For easily testing in shell scripts whether some command
5483 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5484 returns with exit code 0 iff no command of the given name is available.
5485 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5486 the output goes to stdout and nothing is printed to stderr.
5487 Additional arguments are always ignored.
5489 Since for each cipher there is a command of the same name,
5490 the 'no-cipher' compilation switches can be tested this way.
5492 ('openssl no-XXX' is not able to detect pseudo-commands such
5493 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5496 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5499 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5500 is set; it will be thrown away anyway because each handshake creates
5502 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5503 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5504 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5505 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5508 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5509 'Q' and 'R' lose their special meanings (quit/renegotiate).
5510 This is part of what -quiet does; unlike -quiet, -ign_eof
5511 does not suppress any output.
5514 *) Add compatibility options to the purpose and trust code. The
5515 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5516 accepts a certificate or CA, this was the previous behaviour,
5517 with all the associated security issues.
5519 X509_TRUST_COMPAT is the old trust behaviour: only and
5520 automatically trust self signed roots in certificate store. A
5521 new trust setting X509_TRUST_DEFAULT is used to specify that
5522 a purpose has no associated trust setting and it should instead
5523 use the value in the default purpose.
5526 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5527 and fix a memory leak.
5530 *) In util/mkerr.pl (which implements 'make errors'), preserve
5531 reason strings from the previous version of the .c file, as
5532 the default to have only downcase letters (and digits) in
5533 automatically generated reasons codes is not always appropriate.
5536 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5537 using strerror. Previously, ERR_reason_error_string() returned
5538 library names as reason strings for SYSerr; but SYSerr is a special
5539 case where small numbers are errno values, not library numbers.
5542 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5543 converts DSA parameters into DH parameters. (When creating parameters,
5544 DSA_generate_parameters is used.)
5547 *) Include 'length' (recommended exponent length) in C code generated
5548 by 'openssl dhparam -C'.
5551 *) The second argument to set_label in perlasm was already being used
5552 so couldn't be used as a "file scope" flag. Moved to third argument
5556 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5557 instead of RAND_bytes for encryption IVs and salts.
5560 *) Include RAND_status() into RAND_METHOD instead of implementing
5561 it only for md_rand.c Otherwise replacing the PRNG by calling
5562 RAND_set_rand_method would be impossible.
5565 *) Don't let DSA_generate_key() enter an infinite loop if the random
5566 number generation fails.
5569 *) New 'rand' application for creating pseudo-random output.
5572 *) Added configuration support for Linux/IA64
5573 [Rolf Haberrecker <rolf@suse.de>]
5575 *) Assembler module support for Mingw32.
5578 *) Shared library support for HPUX (in shlib/).
5579 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5581 *) Shared library support for Solaris gcc.
5582 [Lutz Behnke <behnke@trustcenter.de>]
5584 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5586 *) PKCS7_encrypt() was adding text MIME headers twice because they
5587 were added manually and by SMIME_crlf_copy().
5590 *) In bntest.c don't call BN_rand with zero bits argument.
5591 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5593 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5594 case was implemented. This caused BN_div_recp() to fail occasionally.
5597 *) Add an optional second argument to the set_label() in the perl
5598 assembly language builder. If this argument exists and is set
5599 to 1 it signals that the assembler should use a symbol whose
5600 scope is the entire file, not just the current function. This
5601 is needed with MASM which uses the format label:: for this scope.
5602 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5604 *) Change the ASN1 types so they are typedefs by default. Before
5605 almost all types were #define'd to ASN1_STRING which was causing
5606 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5610 *) Change names of new functions to the new get1/get0 naming
5611 convention: After 'get1', the caller owns a reference count
5612 and has to call ..._free; 'get0' returns a pointer to some
5613 data structure without incrementing reference counters.
5614 (Some of the existing 'get' functions increment a reference
5615 counter, some don't.)
5616 Similarly, 'set1' and 'add1' functions increase reference
5617 counters or duplicate objects.
5620 *) Allow for the possibility of temp RSA key generation failure:
5621 the code used to assume it always worked and crashed on failure.
5624 *) Fix potential buffer overrun problem in BIO_printf().
5625 [Ulf Möller, using public domain code by Patrick Powell; problem
5626 pointed out by David Sacerdote <das33@cornell.edu>]
5628 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5629 RAND_egd() and RAND_status(). In the command line application,
5630 the EGD socket can be specified like a seed file using RANDFILE
5634 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5635 Some CAs (e.g. Verisign) distribute certificates in this form.
5638 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5639 list to exclude them. This means that no special compilation option
5640 is needed to use anonymous DH: it just needs to be included in the
5644 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5645 EVP_MD_type. The old functionality is available in a new macro called
5646 EVP_MD_md(). Change code that uses it and update docs.
5649 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5650 where the 'void *' argument is replaced by a function pointer argument.
5651 Previously 'void *' was abused to point to functions, which works on
5652 many platforms, but is not correct. As these functions are usually
5653 called by macros defined in OpenSSL header files, most source code
5654 should work without changes.
5657 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5658 sections with information on -D... compiler switches used for
5659 compiling the library so that applications can see them. To enable
5660 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5661 must be defined. E.g.,
5662 #define OPENSSL_ALGORITHM_DEFINES
5663 #include <openssl/opensslconf.h>
5664 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5665 [Richard Levitte, Ulf and Bodo Möller]
5667 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5671 *) Change the 'other' type in certificate aux info to a STACK_OF
5672 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5673 the required ASN1 format: arbitrary types determined by an OID.
5676 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5677 argument to 'req'. This is not because the function is newer or
5678 better than others it just uses the work 'NEW' in the certificate
5679 request header lines. Some software needs this.
5682 *) Reorganise password command line arguments: now passwords can be
5683 obtained from various sources. Delete the PEM_cb function and make
5684 it the default behaviour: i.e. if the callback is NULL and the
5685 usrdata argument is not NULL interpret it as a null terminated pass
5686 phrase. If usrdata and the callback are NULL then the pass phrase
5687 is prompted for as usual.
5690 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5691 the support is automatically enabled. The resulting binaries will
5692 autodetect the card and use it if present.
5693 [Ben Laurie and Compaq Inc.]
5695 *) Work around for Netscape hang bug. This sends certificate request
5696 and server done in one record. Since this is perfectly legal in the
5697 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5698 the bugs/SSLv3 entry for more info.
5701 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5704 *) Add -rand argument to smime and pkcs12 applications and read/write
5708 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5711 *) Add command line password options to the remaining applications.
5714 *) Bug fix for BN_div_recp() for numerators with an even number of
5718 *) More tests in bntest.c, and changed test_bn output.
5721 *) ./config recognizes MacOS X now.
5724 *) Bug fix for BN_div() when the first words of num and divsor are
5725 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5728 *) Add support for various broken PKCS#8 formats, and command line
5729 options to produce them.
5732 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5733 get temporary BIGNUMs from a BN_CTX.
5736 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5740 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5741 include a #define from the old name to the new. The original intent
5742 was that statically linked binaries could for example just call
5743 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5744 link with digests. This never worked becayse SSLeay_add_all_digests()
5745 and SSLeay_add_all_ciphers() were in the same source file so calling
5746 one would link with the other. They are now in separate source files.
5749 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5752 *) Use a less unusual form of the Miller-Rabin primality test (it used
5753 a binary algorithm for exponentiation integrated into the Miller-Rabin
5754 loop, our standard modexp algorithms are faster).
5757 *) Support for the EBCDIC character set completed.
5758 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5760 *) Source code cleanups: use const where appropriate, eliminate casts,
5761 use void * instead of char * in lhash.
5764 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5765 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5766 this the server could overwrite ephemeral keys that the client
5770 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5771 using 50 iterations of the Rabin-Miller test.
5773 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5774 iterations of the Rabin-Miller test as required by the appendix
5775 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5776 As BN_is_prime_fasttest includes trial division, DSA parameter
5777 generation becomes much faster.
5779 This implies a change for the callback functions in DSA_is_prime
5780 and DSA_generate_parameters: The callback function is called once
5781 for each positive witness in the Rabin-Miller test, not just
5782 occasionally in the inner loop; and the parameters to the
5783 callback function now provide an iteration count for the outer
5784 loop rather than for the current invocation of the inner loop.
5785 DSA_generate_parameters additionally can call the callback
5786 function with an 'iteration count' of -1, meaning that a
5787 candidate has passed the trial division test (when q is generated
5788 from an application-provided seed, trial division is skipped).
5791 *) New function BN_is_prime_fasttest that optionally does trial
5792 division before starting the Rabin-Miller test and has
5793 an additional BN_CTX * argument (whereas BN_is_prime always
5794 has to allocate at least one BN_CTX).
5795 'callback(1, -1, cb_arg)' is called when a number has passed the
5796 trial division stage.
5799 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5803 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5806 *) New function BN_pseudo_rand().
5809 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5810 bignum version of BN_from_montgomery() with the working code from
5811 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5815 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5816 made it impossible to use the same SSL_SESSION data structure in
5817 SSL2 clients in multiple threads.
5820 *) The return value of RAND_load_file() no longer counts bytes obtained
5821 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5822 to seed the PRNG (previously an explicit byte count was required).
5823 [Ulf Möller, Bodo Möller]
5825 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5826 used (char *) instead of (void *) and had casts all over the place.
5829 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5832 *) Retain source code compatibility for BN_prime_checks macro:
5833 BN_is_prime(..., BN_prime_checks, ...) now uses
5834 BN_prime_checks_for_size to determine the appropriate number of
5835 Rabin-Miller iterations.
5838 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5839 DH_CHECK_P_NOT_SAFE_PRIME.
5840 (Check if this is true? OpenPGP calls them "strong".)
5843 *) Merge the functionality of "dh" and "gendh" programs into a new program
5844 "dhparam". The old programs are retained for now but will handle DH keys
5845 (instead of parameters) in future.
5848 *) Make the ciphers, s_server and s_client programs check the return values
5849 when a new cipher list is set.
5852 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5853 ciphers. Before when the 56bit ciphers were enabled the sorting was
5856 The syntax for the cipher sorting has been extended to support sorting by
5857 cipher-strength (using the strength_bits hard coded in the tables).
5858 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5860 Fix a bug in the cipher-command parser: when supplying a cipher command
5861 string with an "undefined" symbol (neither command nor alphanumeric
5862 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5863 an error is flagged.
5865 Due to the strength-sorting extension, the code of the
5866 ssl_create_cipher_list() function was completely rearranged. I hope that
5867 the readability was also increased :-)
5868 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5870 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5871 for the first serial number and places 2 in the serial number file. This
5872 avoids problems when the root CA is created with serial number zero and
5873 the first user certificate has the same issuer name and serial number
5877 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5878 the new code. Add documentation for this stuff.
5881 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5882 X509_*() to X509at_*() on the grounds that they don't handle X509
5883 structures and behave in an analagous way to the X509v3 functions:
5884 they shouldn't be called directly but wrapper functions should be used
5887 So we also now have some wrapper functions that call the X509at functions
5888 when passed certificate requests. (TO DO: similar things can be done with
5889 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5890 things. Some of these need some d2i or i2d and print functionality
5891 because they handle more complex structures.)
5894 *) Add missing #ifndefs that caused missing symbols when building libssl
5895 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5896 NO_RSA in ssl/s2*.c.
5897 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5899 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5900 has a return value which indicates the quality of the random data
5901 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5902 error queue. New function RAND_pseudo_bytes() generates output that is
5903 guaranteed to be unique but not unpredictable. RAND_add is like
5904 RAND_seed, but takes an extra argument for an entropy estimate
5905 (RAND_seed always assumes full entropy).
5908 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5909 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5910 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5911 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5912 false-positive rate of at most 2^-80 for random input.
5915 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5918 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5919 in the 0.9.5 release), this returns the chain
5920 from an X509_CTX structure with a dup of the stack and all
5921 the X509 reference counts upped: so the stack will exist
5922 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5925 Also make SSL_SESSION_print() print out the verify return
5929 *) Add manpage for the pkcs12 command. Also change the default
5930 behaviour so MAC iteration counts are used unless the new
5931 -nomaciter option is used. This improves file security and
5932 only older versions of MSIE (4.0 for example) need it.
5935 *) Honor the no-xxx Configure options when creating .DEF files.
5938 *) Add PKCS#10 attributes to field table: challengePassword,
5939 unstructuredName and unstructuredAddress. These are taken from
5940 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5941 international characters are used.
5943 More changes to X509_ATTRIBUTE code: allow the setting of types
5944 based on strings. Remove the 'loc' parameter when adding
5945 attributes because these will be a SET OF encoding which is sorted
5949 *) Initial changes to the 'req' utility to allow request generation
5950 automation. This will allow an application to just generate a template
5951 file containing all the field values and have req construct the
5954 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5955 used all over the place including certificate requests and PKCS#7
5956 structures. They are currently handled manually where necessary with
5957 some primitive wrappers for PKCS#7. The new functions behave in a
5958 manner analogous to the X509 extension functions: they allow
5959 attributes to be looked up by NID and added.
5961 Later something similar to the X509V3 code would be desirable to
5962 automatically handle the encoding, decoding and printing of the
5963 more complex types. The string types like challengePassword can
5964 be handled by the string table functions.
5966 Also modified the multi byte string table handling. Now there is
5967 a 'global mask' which masks out certain types. The table itself
5968 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5969 is useful when for example there is only one permissible type
5970 (as in countryName) and using the mask might result in no valid
5974 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5975 SSL_get_peer_finished to allow applications to obtain the latest
5976 Finished messages sent to the peer or expected from the peer,
5977 respectively. (SSL_get_peer_finished is usually the Finished message
5978 actually received from the peer, otherwise the protocol will be aborted.)
5980 As the Finished message are message digests of the complete handshake
5981 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5982 be used for external authentication procedures when the authentication
5983 provided by SSL/TLS is not desired or is not enough.
5986 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5987 the host supports BWX extension and if Compaq C is present on the
5988 $PATH. Just exploiting of the BWX extension results in 20-30%
5989 performance kick for some algorithms, e.g. DES and RC4 to mention
5990 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5994 *) Add support for MS "fast SGC". This is arguably a violation of the
5995 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5996 weak crypto and after checking the certificate is SGC a second one
5997 with strong crypto. MS SGC stops the first handshake after receiving
5998 the server certificate message and sends a second client hello. Since
5999 a server will typically do all the time consuming operations before
6000 expecting any further messages from the client (server key exchange
6001 is the most expensive) there is little difference between the two.
6003 To get OpenSSL to support MS SGC we have to permit a second client
6004 hello message after we have sent server done. In addition we have to
6005 reset the MAC if we do get this second client hello.
6008 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6009 if a DER encoded private key is RSA or DSA traditional format. Changed
6010 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6011 format DER encoded private key. Newer code should use PKCS#8 format which
6012 has the key type encoded in the ASN1 structure. Added DER private key
6013 support to pkcs8 application.
6016 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6017 ciphersuites has been selected (as required by the SSL 3/TLS 1
6018 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6019 is set, we interpret this as a request to violate the specification
6020 (the worst that can happen is a handshake failure, and 'correct'
6021 behaviour would result in a handshake failure anyway).
6024 *) In SSL_CTX_add_session, take into account that there might be multiple
6025 SSL_SESSION structures with the same session ID (e.g. when two threads
6026 concurrently obtain them from an external cache).
6027 The internal cache can handle only one SSL_SESSION with a given ID,
6028 so if there's a conflict, we now throw out the old one to achieve
6032 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6033 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6034 some routines that use cipher OIDs: some ciphers do not have OIDs
6035 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6039 *) Simplify the trust setting structure and code. Now we just have
6040 two sequences of OIDs for trusted and rejected settings. These will
6041 typically have values the same as the extended key usage extension
6042 and any application specific purposes.
6044 The trust checking code now has a default behaviour: it will just
6045 check for an object with the same NID as the passed id. Functions can
6046 be provided to override either the default behaviour or the behaviour
6047 for a given id. SSL client, server and email already have functions
6048 in place for compatibility: they check the NID and also return "trusted"
6049 if the certificate is self signed.
6052 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6053 traditional format into an EVP_PKEY structure.
6056 *) Add a password callback function PEM_cb() which either prompts for
6057 a password if usr_data is NULL or otherwise assumes it is a null
6058 terminated password. Allow passwords to be passed on command line
6059 environment or config files in a few more utilities.
6062 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6063 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6064 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6065 Update documentation.
6068 *) Support for ASN1 "NULL" type. This could be handled before by using
6069 ASN1_TYPE but there wasn't any function that would try to read a NULL
6070 and produce an error if it couldn't. For compatibility we also have
6071 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6072 don't allocate anything because they don't need to.
6075 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6077 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6079 *) Rebuild of the memory allocation routines used by OpenSSL code and
6080 possibly others as well. The purpose is to make an interface that
6081 provide hooks so anyone can build a separate set of allocation and
6082 deallocation routines to be used by OpenSSL, for example memory
6083 pool implementations, or something else, which was previously hard
6084 since Malloc(), Realloc() and Free() were defined as macros having
6085 the values malloc, realloc and free, respectively (except for Win32
6086 compilations). The same is provided for memory debugging code.
6087 OpenSSL already comes with functionality to find memory leaks, but
6088 this gives people a chance to debug other memory problems.
6090 With these changes, a new set of functions and macros have appeared:
6092 CRYPTO_set_mem_debug_functions() [F]
6093 CRYPTO_get_mem_debug_functions() [F]
6094 CRYPTO_dbg_set_options() [F]
6095 CRYPTO_dbg_get_options() [F]
6096 CRYPTO_malloc_debug_init() [M]
6098 The memory debug functions are NULL by default, unless the library
6099 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6100 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6101 gives the standard debugging functions that come with OpenSSL) or
6102 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6103 provided by the library user) must be used. When the standard
6104 debugging functions are used, CRYPTO_dbg_set_options can be used to
6105 request additional information:
6106 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6107 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6109 Also, things like CRYPTO_set_mem_functions will always give the
6110 expected result (the new set of functions is used for allocation
6111 and deallocation) at all times, regardless of platform and compiler
6114 To finish it up, some functions that were never use in any other
6115 way than through macros have a new API and new semantic:
6118 CRYPTO_dbg_realloc()
6121 All macros of value have retained their old syntax.
6122 [Richard Levitte and Bodo Moeller]
6124 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6125 ordering of SMIMECapabilities wasn't in "strength order" and there
6126 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6130 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6131 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6132 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6134 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6135 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6136 functionality to handle multipart/signed properly) and a utility
6137 called 'smime' to call all this stuff. This is based on code I
6138 originally wrote for Celo who have kindly allowed it to be
6139 included in OpenSSL.
6142 *) Add variants des_set_key_checked and des_set_key_unchecked of
6143 des_set_key (aka des_key_sched). Global variable des_check_key
6144 decides which of these is called by des_set_key; this way
6145 des_check_key behaves as it always did, but applications and
6146 the library itself, which was buggy for des_check_key == 1,
6147 have a cleaner way to pick the version they need.
6150 *) New function PKCS12_newpass() which changes the password of a
6154 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6155 dynamic mix. In both cases the ids can be used as an index into the
6156 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6157 functions so they accept a list of the field values and the
6158 application doesn't need to directly manipulate the X509_TRUST
6162 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6166 *) Modify the way the V3 extension code looks up extensions. This now
6167 works in a similar way to the object code: we have some "standard"
6168 extensions in a static table which is searched with OBJ_bsearch()
6169 and the application can add dynamic ones if needed. The file
6170 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6171 updated whenever a new extension is added to the core code and kept
6172 in ext_nid order. There is a simple program 'tabtest.c' which checks
6173 this. New extensions are not added too often so this file can readily
6174 be maintained manually.
6176 There are two big advantages in doing things this way. The extensions
6177 can be looked up immediately and no longer need to be "added" using
6178 X509V3_add_standard_extensions(): this function now does nothing.
6179 [Side note: I get *lots* of email saying the extension code doesn't
6180 work because people forget to call this function]
6181 Also no dynamic allocation is done unless new extensions are added:
6182 so if we don't add custom extensions there is no need to call
6183 X509V3_EXT_cleanup().
6186 *) Modify enc utility's salting as follows: make salting the default. Add a
6187 magic header, so unsalted files fail gracefully instead of just decrypting
6188 to garbage. This is because not salting is a big security hole, so people
6189 should be discouraged from doing it.
6192 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6193 digest to be passed on the command line but it only used this
6194 parameter when signing a certificate. Modified so all relevant
6195 operations are affected by the digest parameter including the
6196 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6197 DSA key was used because it didn't fix the digest.
6200 *) Initial certificate chain verify code. Currently tests the untrusted
6201 certificates for consistency with the verify purpose (which is set
6202 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6204 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6205 this is because it will reject chains with invalid extensions whereas
6206 every previous version of OpenSSL and SSLeay made no checks at all.
6208 Trust code: checks the root CA for the relevant trust settings. Trust
6209 settings have an initial value consistent with the verify purpose: e.g.
6210 if the verify purpose is for SSL client use it expects the CA to be
6211 trusted for SSL client use. However the default value can be changed to
6212 permit custom trust settings: one example of this would be to only trust
6213 certificates from a specific "secure" set of CAs.
6215 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6216 which should be used for version portability: especially since the
6217 verify structure is likely to change more often now.
6219 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6220 to set them. If not set then assume SSL clients will verify SSL servers
6223 Two new options to the verify program: -untrusted allows a set of
6224 untrusted certificates to be passed in and -purpose which sets the
6225 intended purpose of the certificate. If a purpose is set then the
6226 new chain verify code is used to check extension consistency.
6229 *) Support for the authority information access extension.
6232 *) Modify RSA and DSA PEM read routines to transparently handle
6233 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6234 public keys in a format compatible with certificate
6235 SubjectPublicKeyInfo structures. Unfortunately there were already
6236 functions called *_PublicKey_* which used various odd formats so
6237 these are retained for compatibility: however the DSA variants were
6238 never in a public release so they have been deleted. Changed dsa/rsa
6239 utilities to handle the new format: note no releases ever handled public
6240 keys so we should be OK.
6242 The primary motivation for this change is to avoid the same fiasco
6243 that dogs private keys: there are several incompatible private key
6244 formats some of which are standard and some OpenSSL specific and
6245 require various evil hacks to allow partial transparent handling and
6246 even then it doesn't work with DER formats. Given the option anything
6247 other than PKCS#8 should be dumped: but the other formats have to
6248 stay in the name of compatibility.
6250 With public keys and the benefit of hindsight one standard format
6251 is used which works with EVP_PKEY, RSA or DSA structures: though
6252 it clearly returns an error if you try to read the wrong kind of key.
6254 Added a -pubkey option to the 'x509' utility to output the public key.
6255 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6256 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6257 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6258 that do the same as the EVP_PKEY_assign_*() except they up the
6259 reference count of the added key (they don't "swallow" the
6263 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6264 CRLs would fail if the file contained no certificates or no CRLs:
6265 added a new function to read in both types and return the number
6266 read: this means that if none are read it will be an error. The
6267 DER versions of the certificate and CRL reader would always fail
6268 because it isn't possible to mix certificates and CRLs in DER format
6269 without choking one or the other routine. Changed this to just read
6270 a certificate: this is the best we can do. Also modified the code
6271 in apps/verify.c to take notice of return codes: it was previously
6272 attempting to read in certificates from NULL pointers and ignoring
6273 any errors: this is one reason why the cert and CRL reader seemed
6274 to work. It doesn't check return codes from the default certificate
6275 routines: these may well fail if the certificates aren't installed.
6278 *) Code to support otherName option in GeneralName.
6281 *) First update to verify code. Change the verify utility
6282 so it warns if it is passed a self signed certificate:
6283 for consistency with the normal behaviour. X509_verify
6284 has been modified to it will now verify a self signed
6285 certificate if *exactly* the same certificate appears
6286 in the store: it was previously impossible to trust a
6287 single self signed certificate. This means that:
6288 openssl verify ss.pem
6289 now gives a warning about a self signed certificate but
6290 openssl verify -CAfile ss.pem ss.pem
6294 *) For servers, store verify_result in SSL_SESSION data structure
6295 (and add it to external session representation).
6296 This is needed when client certificate verifications fails,
6297 but an application-provided verification callback (set by
6298 SSL_CTX_set_cert_verify_callback) allows accepting the session
6299 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6300 but returns 1): When the session is reused, we have to set
6301 ssl->verify_result to the appropriate error code to avoid
6303 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6305 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6306 case in PKCS7_dataInit() where the signed PKCS7 structure
6307 didn't contain any existing data because it was being created.
6308 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6310 *) Add a salt to the key derivation routines in enc.c. This
6311 forms the first 8 bytes of the encrypted file. Also add a
6312 -S option to allow a salt to be input on the command line.
6315 *) New function X509_cmp(). Oddly enough there wasn't a function
6316 to compare two certificates. We do this by working out the SHA1
6317 hash and comparing that. X509_cmp() will be needed by the trust
6321 *) SSL_get1_session() is like SSL_get_session(), but increments
6322 the reference count in the SSL_SESSION returned.
6323 [Geoff Thorpe <geoff@eu.c2.net>]
6325 *) Fix for 'req': it was adding a null to request attributes.
6326 Also change the X509_LOOKUP and X509_INFO code to handle
6327 certificate auxiliary information.
6330 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6334 *) Add the possibility to add extra information to the memory leak
6335 detecting output, to form tracebacks, showing from where each
6336 allocation was originated: CRYPTO_push_info("constant string") adds
6337 the string plus current file name and line number to a per-thread
6338 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6339 is like calling CYRPTO_pop_info() until the stack is empty.
6340 Also updated memory leak detection code to be multi-thread-safe.
6343 *) Add options -text and -noout to pkcs7 utility and delete the
6344 encryption options which never did anything. Update docs.
6347 *) Add options to some of the utilities to allow the pass phrase
6348 to be included on either the command line (not recommended on
6349 OSes like Unix) or read from the environment. Update the
6350 manpages and fix a few bugs.
6353 *) Add a few manpages for some of the openssl commands.
6356 *) Fix the -revoke option in ca. It was freeing up memory twice,
6357 leaking and not finding already revoked certificates.
6360 *) Extensive changes to support certificate auxiliary information.
6361 This involves the use of X509_CERT_AUX structure and X509_AUX
6362 functions. An X509_AUX function such as PEM_read_X509_AUX()
6363 can still read in a certificate file in the usual way but it
6364 will also read in any additional "auxiliary information". By
6365 doing things this way a fair degree of compatibility can be
6366 retained: existing certificates can have this information added
6367 using the new 'x509' options.
6369 Current auxiliary information includes an "alias" and some trust
6370 settings. The trust settings will ultimately be used in enhanced
6371 certificate chain verification routines: currently a certificate
6372 can only be trusted if it is self signed and then it is trusted
6376 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6377 The problem was that one of the replacement routines had not been working
6378 since SSLeay releases. For now the offending routine has been replaced
6379 with non-optimised assembler. Even so, this now gives around 95%
6380 performance improvement for 1024 bit RSA signs.
6383 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6384 handling. Most clients have the effective key size in bits equal to
6385 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6386 A few however don't do this and instead use the size of the decrypted key
6387 to determine the RC2 key length and the AlgorithmIdentifier to determine
6388 the effective key length. In this case the effective key length can still
6389 be 40 bits but the key length can be 168 bits for example. This is fixed
6390 by manually forcing an RC2 key into the EVP_PKEY structure because the
6391 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6392 the key length and effective key length are equal.
6395 *) Add a bunch of functions that should simplify the creation of
6396 X509_NAME structures. Now you should be able to do:
6397 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6398 and have it automatically work out the correct field type and fill in
6399 the structures. The more adventurous can try:
6400 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6401 and it will (hopefully) work out the correct multibyte encoding.
6404 *) Change the 'req' utility to use the new field handling and multibyte
6405 copy routines. Before the DN field creation was handled in an ad hoc
6406 way in req, ca, and x509 which was rather broken and didn't support
6407 BMPStrings or UTF8Strings. Since some software doesn't implement
6408 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6409 using the dirstring_type option. See the new comment in the default
6410 openssl.cnf for more info.
6413 *) Make crypto/rand/md_rand.c more robust:
6414 - Assure unique random numbers after fork().
6415 - Make sure that concurrent threads access the global counter and
6416 md serializably so that we never lose entropy in them
6417 or use exactly the same state in multiple threads.
6418 Access to the large state is not always serializable because
6419 the additional locking could be a performance killer, and
6420 md should be large enough anyway.
6423 *) New file apps/app_rand.c with commonly needed functionality
6424 for handling the random seed file.
6426 Use the random seed file in some applications that previously did not:
6428 dsaparam -genkey (which also ignored its '-rand' option),
6431 x509 (when signing).
6432 Except on systems with /dev/urandom, it is crucial to have a random
6433 seed file at least for key creation, DSA signing, and for DH exchanges;
6434 for RSA signatures we could do without one.
6436 gendh and gendsa (unlike genrsa) used to read only the first byte
6437 of each file listed in the '-rand' option. The function as previously
6438 found in genrsa is now in app_rand.c and is used by all programs
6439 that support '-rand'.
6442 *) In RAND_write_file, use mode 0600 for creating files;
6443 don't just chmod when it may be too late.
6446 *) Report an error from X509_STORE_load_locations
6447 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6450 *) New function ASN1_mbstring_copy() this copies a string in either
6451 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6452 into an ASN1_STRING type. A mask of permissible types is passed
6453 and it chooses the "minimal" type to use or an error if not type
6457 *) Add function equivalents to the various macros in asn1.h. The old
6458 macros are retained with an M_ prefix. Code inside the library can
6459 use the M_ macros. External code (including the openssl utility)
6460 should *NOT* in order to be "shared library friendly".
6463 *) Add various functions that can check a certificate's extensions
6464 to see if it usable for various purposes such as SSL client,
6465 server or S/MIME and CAs of these types. This is currently
6466 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6467 verification. Also added a -purpose flag to x509 utility to
6468 print out all the purposes.
6471 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6475 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6476 for, obtain and decode and extension and obtain its critical flag.
6477 This allows all the necessary extension code to be handled in a
6478 single function call.
6481 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6482 platforms. See crypto/rc4/rc4_enc.c for further details.
6485 *) New -noout option to asn1parse. This causes no output to be produced
6486 its main use is when combined with -strparse and -out to extract data
6487 from a file (which may not be in ASN.1 format).
6490 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6491 when producing the local key id.
6492 [Richard Levitte <levitte@stacken.kth.se>]
6494 *) New option -dhparam in s_server. This allows a DH parameter file to be
6495 stated explicitly. If it is not stated then it tries the first server
6496 certificate file. The previous behaviour hard coded the filename
6500 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6501 a public key to be input or output. For example:
6502 openssl rsa -in key.pem -pubout -out pubkey.pem
6503 Also added necessary DSA public key functions to handle this.
6506 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6507 in the message. This was handled by allowing
6508 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6509 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6511 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6512 to the end of the strings whereas this didn't. This would cause problems
6513 if strings read with d2i_ASN1_bytes() were later modified.
6514 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6516 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6517 data and it contains EOF it will end up returning an error. This is
6518 caused by input 46 bytes long. The cause is due to the way base64
6519 BIOs find the start of base64 encoded data. They do this by trying a
6520 trial decode on each line until they find one that works. When they
6521 do a flag is set and it starts again knowing it can pass all the
6522 data directly through the decoder. Unfortunately it doesn't reset
6523 the context it uses. This means that if EOF is reached an attempt
6524 is made to pass two EOFs through the context and this causes the
6525 resulting error. This can also cause other problems as well. As is
6526 usual with these problems it takes *ages* to find and the fix is
6527 trivial: move one line.
6528 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6530 *) Ugly workaround to get s_client and s_server working under Windows. The
6531 old code wouldn't work because it needed to select() on sockets and the
6532 tty (for keypresses and to see if data could be written). Win32 only
6533 supports select() on sockets so we select() with a 1s timeout on the
6534 sockets and then see if any characters are waiting to be read, if none
6535 are present then we retry, we also assume we can always write data to
6536 the tty. This isn't nice because the code then blocks until we've
6537 received a complete line of data and it is effectively polling the
6538 keyboard at 1s intervals: however it's quite a bit better than not
6539 working at all :-) A dedicated Windows application might handle this
6540 with an event loop for example.
6543 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6544 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6545 will be called when RSA_sign() and RSA_verify() are used. This is useful
6546 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6547 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6548 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6549 This necessitated the support of an extra signature type NID_md5_sha1
6550 for SSL signatures and modifications to the SSL library to use it instead
6551 of calling RSA_public_decrypt() and RSA_private_encrypt().
6554 *) Add new -verify -CAfile and -CApath options to the crl program, these
6555 will lookup a CRL issuers certificate and verify the signature in a
6556 similar way to the verify program. Tidy up the crl program so it
6557 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6558 less strict. It will now permit CRL extensions even if it is not
6559 a V2 CRL: this will allow it to tolerate some broken CRLs.
6562 *) Initialize all non-automatic variables each time one of the openssl
6563 sub-programs is started (this is necessary as they may be started
6564 multiple times from the "OpenSSL>" prompt).
6565 [Lennart Bang, Bodo Moeller]
6567 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6568 removing all other RSA functionality (this is what NO_RSA does). This
6569 is so (for example) those in the US can disable those operations covered
6570 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6574 *) Non-copying interface to BIO pairs.
6575 (still largely untested)
6578 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6579 ASCII string. This was handled independently in various places before.
6582 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6583 UTF8 strings a character at a time.
6586 *) Use client_version from client hello to select the protocol
6587 (s23_srvr.c) and for RSA client key exchange verification
6588 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6591 *) Add various utility functions to handle SPKACs, these were previously
6592 handled by poking round in the structure internals. Added new function
6593 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6594 print, verify and generate SPKACs. Based on an original idea from
6595 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6598 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6601 *) Allow the config file extension section to be overwritten on the
6602 command line. Based on an original idea from Massimiliano Pala
6603 <madwolf@comune.modena.it>. The new option is called -extensions
6604 and can be applied to ca, req and x509. Also -reqexts to override
6605 the request extensions in req and -crlexts to override the crl extensions
6609 *) Add new feature to the SPKAC handling in ca. Now you can include
6610 the same field multiple times by preceding it by "XXXX." for example:
6613 this is the same syntax as used in the req config file.
6616 *) Allow certificate extensions to be added to certificate requests. These
6617 are specified in a 'req_extensions' option of the req section of the
6618 config file. They can be printed out with the -text option to req but
6619 are otherwise ignored at present.
6622 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6623 data read consists of only the final block it would not decrypted because
6624 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6625 A misplaced 'break' also meant the decrypted final block might not be
6626 copied until the next read.
6629 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6630 a few extra parameters to the DH structure: these will be useful if
6631 for example we want the value of 'q' or implement X9.42 DH.
6634 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6635 provides hooks that allow the default DSA functions or functions on a
6636 "per key" basis to be replaced. This allows hardware acceleration and
6637 hardware key storage to be handled without major modification to the
6638 library. Also added low level modexp hooks and CRYPTO_EX structure and
6639 associated functions.
6642 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6643 as "read only": it can't be written to and the buffer it points to will
6644 not be freed. Reading from a read only BIO is much more efficient than
6645 a normal memory BIO. This was added because there are several times when
6646 an area of memory needs to be read from a BIO. The previous method was
6647 to create a memory BIO and write the data to it, this results in two
6648 copies of the data and an O(n^2) reading algorithm. There is a new
6649 function BIO_new_mem_buf() which creates a read only memory BIO from
6650 an area of memory. Also modified the PKCS#7 routines to use read only
6654 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6655 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6656 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6657 but a retry condition occured while trying to read the rest.
6660 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6661 NID_pkcs7_encrypted by default: this was wrong since this should almost
6662 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6663 the encrypted data type: this is a more sensible place to put it and it
6664 allows the PKCS#12 code to be tidied up that duplicated this
6668 *) Changed obj_dat.pl script so it takes its input and output files on
6669 the command line. This should avoid shell escape redirection problems
6673 *) Initial support for certificate extension requests, these are included
6674 in things like Xenroll certificate requests. Included functions to allow
6675 extensions to be obtained and added.
6678 *) -crlf option to s_client and s_server for sending newlines as
6679 CRLF (as required by many protocols).
6682 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6684 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6685 [Ralf S. Engelschall]
6687 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6688 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6690 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6694 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6695 DH parameters/keys (q is lost during that conversion, but the resulting
6696 DH parameters contain its length).
6698 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6699 much faster than DH_generate_parameters (which creates parameters
6700 where p = 2*q + 1), and also the smaller q makes DH computations
6701 much more efficient (160-bit exponentiation instead of 1024-bit
6702 exponentiation); so this provides a convenient way to support DHE
6703 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6704 utter importance to use
6705 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6707 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6708 when such DH parameters are used, because otherwise small subgroup
6709 attacks may become possible!
6712 *) Avoid memory leak in i2d_DHparams.
6715 *) Allow the -k option to be used more than once in the enc program:
6716 this allows the same encrypted message to be read by multiple recipients.
6719 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6720 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6721 it will always use the numerical form of the OID, even if it has a short
6725 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6726 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6727 otherwise bn_mod_exp was called. In the case of hardware keys for example
6728 no private key components need be present and it might store extra data
6729 in the RSA structure, which cannot be accessed from bn_mod_exp.
6730 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6731 private key operations.
6734 *) Added support for SPARC Linux.
6737 *) pem_password_cb function type incompatibly changed from
6738 typedef int pem_password_cb(char *buf, int size, int rwflag);
6740 ....(char *buf, int size, int rwflag, void *userdata);
6741 so that applications can pass data to their callbacks:
6742 The PEM[_ASN1]_{read,write}... functions and macros now take an
6743 additional void * argument, which is just handed through whenever
6744 the password callback is called.
6745 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6747 New function SSL_CTX_set_default_passwd_cb_userdata.
6749 Compatibility note: As many C implementations push function arguments
6750 onto the stack in reverse order, the new library version is likely to
6751 interoperate with programs that have been compiled with the old
6752 pem_password_cb definition (PEM_whatever takes some data that
6753 happens to be on the stack as its last argument, and the callback
6754 just ignores this garbage); but there is no guarantee whatsoever that
6757 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6758 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6759 problems not only on Windows, but also on some Unix platforms.
6760 To avoid problematic command lines, these definitions are now in an
6761 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6762 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6765 *) MIPS III/IV assembler module is reimplemented.
6768 *) More DES library cleanups: remove references to srand/rand and
6769 delete an unused file.
6772 *) Add support for the the free Netwide assembler (NASM) under Win32,
6773 since not many people have MASM (ml) and it can be hard to obtain.
6774 This is currently experimental but it seems to work OK and pass all
6775 the tests. Check out INSTALL.W32 for info.
6778 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6779 without temporary keys kept an extra copy of the server key,
6780 and connections with temporary keys did not free everything in case
6784 *) New function RSA_check_key and new openssl rsa option -check
6785 for verifying the consistency of RSA keys.
6786 [Ulf Moeller, Bodo Moeller]
6788 *) Various changes to make Win32 compile work:
6789 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6790 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6791 comparison" warnings.
6792 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6795 *) Add a debugging option to PKCS#5 v2 key generation function: when
6796 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6797 derived keys are printed to stderr.
6800 *) Copy the flags in ASN1_STRING_dup().
6801 [Roman E. Pavlov <pre@mo.msk.ru>]
6803 *) The x509 application mishandled signing requests containing DSA
6804 keys when the signing key was also DSA and the parameters didn't match.
6806 It was supposed to omit the parameters when they matched the signing key:
6807 the verifying software was then supposed to automatically use the CA's
6808 parameters if they were absent from the end user certificate.
6810 Omitting parameters is no longer recommended. The test was also
6811 the wrong way round! This was probably due to unusual behaviour in
6812 EVP_cmp_parameters() which returns 1 if the parameters match.
6813 This meant that parameters were omitted when they *didn't* match and
6814 the certificate was useless. Certificates signed with 'ca' didn't have
6816 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6818 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6819 The interface is as follows:
6820 Applications can use
6821 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6822 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6823 "off" is now the default.
6824 The library internally uses
6825 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6826 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6827 to disable memory-checking temporarily.
6829 Some inconsistent states that previously were possible (and were
6830 even the default) are now avoided.
6832 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6833 with each memory chunk allocated; this is occasionally more helpful
6834 than just having a counter.
6836 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6838 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6842 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6843 which largely parallels "options", but is for changing API behaviour,
6844 whereas "options" are about protocol behaviour.
6845 Initial "mode" flags are:
6847 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6848 a single record has been written.
6849 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6850 retries use the same buffer location.
6851 (But all of the contents must be
6855 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6858 *) Fix problems with no-hmac etc.
6859 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6861 *) New functions RSA_get_default_method(), RSA_set_method() and
6862 RSA_get_method(). These allows replacement of RSA_METHODs without having
6863 to mess around with the internals of an RSA structure.
6866 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6867 Also really enable memory leak checks in openssl.c and in some
6869 [Chad C. Mulligan, Bodo Moeller]
6871 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6872 up the length of negative integers. This has now been simplified to just
6873 store the length when it is first determined and use it later, rather
6874 than trying to keep track of where data is copied and updating it to
6876 [Steve Henson, reported by Brien Wheeler
6877 <bwheeler@authentica-security.com>]
6879 *) Add a new function PKCS7_signatureVerify. This allows the verification
6880 of a PKCS#7 signature but with the signing certificate passed to the
6881 function itself. This contrasts with PKCS7_dataVerify which assumes the
6882 certificate is present in the PKCS#7 structure. This isn't always the
6883 case: certificates can be omitted from a PKCS#7 structure and be
6884 distributed by "out of band" means (such as a certificate database).
6887 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6888 function prototypes in pem.h, also change util/mkdef.pl to add the
6889 necessary function names.
6892 *) mk1mf.pl (used by Windows builds) did not properly read the
6893 options set by Configure in the top level Makefile, and Configure
6894 was not even able to write more than one option correctly.
6895 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6898 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6899 file to be loaded from a BIO or FILE pointer. The BIO version will
6900 for example allow memory BIOs to contain config info.
6903 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6904 Whoever hopes to achieve shared-library compatibility across versions
6905 must use this, not the compile-time macro.
6906 (Exercise 0.9.4: Which is the minimum library version required by
6908 Note: All this applies only to multi-threaded programs, others don't
6912 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6913 through a BIO pair triggered the default case, i.e.
6914 SSLerr(...,SSL_R_UNKNOWN_STATE).
6917 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6918 can use the SSL library even if none of the specific BIOs is
6922 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6923 for the encoded length.
6924 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6926 *) Add initial documentation of the X509V3 functions.
6929 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6930 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6931 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6932 secure PKCS#8 private key format with a high iteration count.
6935 *) Fix determination of Perl interpreter: A perl or perl5
6936 _directory_ in $PATH was also accepted as the interpreter.
6937 [Ralf S. Engelschall]
6939 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6940 wrong with it but it was very old and did things like calling
6941 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6945 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6946 to use the new extension code.
6949 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6950 with macros. This should make it easier to change their form, add extra
6951 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6955 *) Add to configuration table a new entry that can specify an alternative
6956 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6957 according to Mark Crispin <MRC@Panda.COM>.
6961 *) DES CBC did not update the IV. Weird.
6964 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6965 Changing the behaviour of the former might break existing programs --
6966 where IV updating is needed, des_ncbc_encrypt can be used.
6969 *) When bntest is run from "make test" it drives bc to check its
6970 calculations, as well as internally checking them. If an internal check
6971 fails, it needs to cause bc to give a non-zero result or make test carries
6972 on without noticing the failure. Fixed.
6975 *) DES library cleanups.
6978 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6979 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6980 ciphers. NOTE: although the key derivation function has been verified
6981 against some published test vectors it has not been extensively tested
6982 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6986 *) Instead of "mkdir -p", which is not fully portable, use new
6987 Perl script "util/mkdir-p.pl".
6990 *) Rewrite the way password based encryption (PBE) is handled. It used to
6991 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6992 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6993 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6994 the 'parameter' field of the AlgorithmIdentifier is passed to the
6995 underlying key generation function so it must do its own ASN1 parsing.
6996 This has also changed the EVP_PBE_CipherInit() function which now has a
6997 'parameter' argument instead of literal salt and iteration count values
6998 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7001 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7002 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7003 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7004 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7005 value was just used as a "magic string" and not used directly its
7006 value doesn't matter.
7009 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7013 *) "linux-sparc64" configuration (ultrapenguin).
7014 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7015 "linux-sparc" configuration.
7016 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7018 *) config now generates no-xxx options for missing ciphers.
7021 *) Support the EBCDIC character set (work in progress).
7022 File ebcdic.c not yet included because it has a different license.
7023 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7025 *) Support BS2000/OSD-POSIX.
7026 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7028 *) Make callbacks for key generation use void * instead of char *.
7031 *) Make S/MIME samples compile (not yet tested).
7034 *) Additional typesafe stacks.
7037 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7041 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7043 *) New configuration variant "sco5-gcc".
7045 *) Updated some demos.
7046 [Sean O Riordain, Wade Scholine]
7048 *) Add missing BIO_free at exit of pkcs12 application.
7051 *) Fix memory leak in conf.c.
7054 *) Updates for Win32 to assembler version of MD5.
7057 *) Set #! path to perl in apps/der_chop to where we found it
7058 instead of using a fixed path.
7061 *) SHA library changes for irix64-mips4-cc.
7064 *) Improvements for VMS support.
7068 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7070 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7071 This also avoids the problems with SC4.2 and unpatched SC5.
7072 [Andy Polyakov <appro@fy.chalmers.se>]
7074 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7075 These are required because of the typesafe stack would otherwise break
7076 existing code. If old code used a structure member which used to be STACK
7077 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7078 sk_num or sk_value it would produce an error because the num, data members
7079 are not present in STACK_OF. Now it just produces a warning. sk_set
7080 replaces the old method of assigning a value to sk_value
7081 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7082 that does this will no longer work (and should use sk_set instead) but
7083 this could be regarded as a "questionable" behaviour anyway.
7086 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7087 correctly handle encrypted S/MIME data.
7090 *) Change type of various DES function arguments from des_cblock
7091 (which means, in function argument declarations, pointer to char)
7092 to des_cblock * (meaning pointer to array with 8 char elements),
7093 which allows the compiler to do more typechecking; it was like
7094 that back in SSLeay, but with lots of ugly casts.
7096 Introduce new type const_des_cblock.
7099 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7100 problems: find RecipientInfo structure that matches recipient certificate
7101 and initialise the ASN1 structures properly based on passed cipher.
7104 *) Belatedly make the BN tests actually check the results.
7107 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7108 to and from BNs: it was completely broken. New compilation option
7109 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7110 key elements as negative integers.
7113 *) Reorganize and speed up MD5.
7114 [Andy Polyakov <appro@fy.chalmers.se>]
7117 [Richard Levitte <richard@levitte.org>]
7119 *) New option -out to asn1parse to allow the parsed structure to be
7120 output to a file. This is most useful when combined with the -strparse
7121 option to examine the output of things like OCTET STRINGS.
7124 *) Make SSL library a little more fool-proof by not requiring any longer
7125 that SSL_set_{accept,connect}_state be called before
7126 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7127 in many applications because usually everything *appeared* to work as
7128 intended anyway -- now it really works as intended).
7131 *) Move openssl.cnf out of lib/.
7134 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7135 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7136 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7137 [Ralf S. Engelschall]
7139 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7140 handle PKCS#7 enveloped data properly.
7141 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7143 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7144 copying pointers. The cert_st handling is changed by this in
7145 various ways (and thus what used to be known as ctx->default_cert
7146 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7147 any longer when s->cert does not give us what we need).
7148 ssl_cert_instantiate becomes obsolete by this change.
7149 As soon as we've got the new code right (possibly it already is?),
7150 we have solved a couple of bugs of the earlier code where s->cert
7151 was used as if it could not have been shared with other SSL structures.
7153 Note that using the SSL API in certain dirty ways now will result
7154 in different behaviour than observed with earlier library versions:
7155 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7156 does not influence s as it used to.
7158 In order to clean up things more thoroughly, inside SSL_SESSION
7159 we don't use CERT any longer, but a new structure SESS_CERT
7160 that holds per-session data (if available); currently, this is
7161 the peer's certificate chain and, for clients, the server's certificate
7162 and temporary key. CERT holds only those values that can have
7163 meaningful defaults in an SSL_CTX.
7166 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7167 from the internal representation. Various PKCS#7 fixes: remove some
7168 evil casts and set the enc_dig_alg field properly based on the signing
7172 *) Allow PKCS#12 password to be set from the command line or the
7173 environment. Let 'ca' get its config file name from the environment
7174 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7178 *) Allow certificate policies extension to use an IA5STRING for the
7179 organization field. This is contrary to the PKIX definition but
7180 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7184 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7185 without disallowing inline assembler and the like for non-pedantic builds.
7188 *) Support Borland C++ builder.
7189 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7194 *) SHA-1 cleanups and performance enhancements.
7195 [Andy Polyakov <appro@fy.chalmers.se>]
7197 *) Sparc v8plus assembler for the bignum library.
7198 [Andy Polyakov <appro@fy.chalmers.se>]
7200 *) Accept any -xxx and +xxx compiler options in Configure.
7203 *) Update HPUX configuration.
7206 *) Add missing sk_<type>_unshift() function to safestack.h
7207 [Ralf S. Engelschall]
7209 *) New function SSL_CTX_use_certificate_chain_file that sets the
7210 "extra_cert"s in addition to the certificate. (This makes sense
7211 only for "PEM" format files, as chains as a whole are not
7215 *) Support verify_depth from the SSL API.
7216 x509_vfy.c had what can be considered an off-by-one-error:
7217 Its depth (which was not part of the external interface)
7218 was actually counting the number of certificates in a chain;
7219 now it really counts the depth.
7222 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7223 instead of X509err, which often resulted in confusing error
7224 messages since the error codes are not globally unique
7225 (e.g. an alleged error in ssl3_accept when a certificate
7226 didn't match the private key).
7228 *) New function SSL_CTX_set_session_id_context that allows to set a default
7229 value (so that you don't need SSL_set_session_id_context for each
7230 connection using the SSL_CTX).
7233 *) OAEP decoding bug fix.
7236 *) Support INSTALL_PREFIX for package builders, as proposed by
7240 *) New Configure options "threads" and "no-threads". For systems
7241 where the proper compiler options are known (currently Solaris
7242 and Linux), "threads" is the default.
7245 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7248 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7249 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7250 such as /usr/local/bin.
7253 *) "make linux-shared" to build shared libraries.
7254 [Niels Poppe <niels@netbox.org>]
7256 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7259 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7260 extension adding in x509 utility.
7263 *) Remove NOPROTO sections and error code comments.
7266 *) Partial rewrite of the DEF file generator to now parse the ANSI
7270 *) New Configure options --prefix=DIR and --openssldir=DIR.
7273 *) Complete rewrite of the error code script(s). It is all now handled
7274 by one script at the top level which handles error code gathering,
7275 header rewriting and C source file generation. It should be much better
7276 than the old method: it now uses a modified version of Ulf's parser to
7277 read the ANSI prototypes in all header files (thus the old K&R definitions
7278 aren't needed for error creation any more) and do a better job of
7279 translating function codes into names. The old 'ASN1 error code imbedded
7280 in a comment' is no longer necessary and it doesn't use .err files which
7281 have now been deleted. Also the error code call doesn't have to appear all
7282 on one line (which resulted in some large lines...).
7285 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7288 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7289 0 (which usually indicates a closed connection), but continue reading.
7292 *) Fix some race conditions.
7295 *) Add support for CRL distribution points extension. Add Certificate
7296 Policies and CRL distribution points documentation.
7299 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7302 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7303 8 of keying material. Merlin has also confirmed interop with this fix
7304 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7305 [Merlin Hughes <merlin@baltimore.ie>]
7307 *) Fix lots of warnings.
7308 [Richard Levitte <levitte@stacken.kth.se>]
7310 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7311 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7312 [Richard Levitte <levitte@stacken.kth.se>]
7314 *) Fix problems with sizeof(long) == 8.
7315 [Andy Polyakov <appro@fy.chalmers.se>]
7317 *) Change functions to ANSI C.
7320 *) Fix typos in error codes.
7321 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7323 *) Remove defunct assembler files from Configure.
7326 *) SPARC v8 assembler BIGNUM implementation.
7327 [Andy Polyakov <appro@fy.chalmers.se>]
7329 *) Support for Certificate Policies extension: both print and set.
7330 Various additions to support the r2i method this uses.
7333 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7334 return a const string when you are expecting an allocated buffer.
7337 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7338 types DirectoryString and DisplayText.
7341 *) Add code to allow r2i extensions to access the configuration database,
7342 add an LHASH database driver and add several ctx helper functions.
7345 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7346 fail when they extended the size of a BIGNUM.
7349 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7350 support typesafe stack.
7353 *) Fix typo in SSL_[gs]et_options().
7354 [Nils Frostberg <nils@medcom.se>]
7356 *) Delete various functions and files that belonged to the (now obsolete)
7357 old X509V3 handling code.
7360 *) New Configure option "rsaref".
7363 *) Don't auto-generate pem.h.
7366 *) Introduce type-safe ASN.1 SETs.
7369 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7370 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7372 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7373 that links with OpenSSL (well at least cause lots of warnings), but fear
7374 not: the conversion is trivial, and it eliminates loads of evil casts. A
7375 few STACKed things have been converted already. Feel free to convert more.
7376 In the fullness of time, I'll do away with the STACK type altogether.
7379 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7380 specified in <certfile> by updating the entry in the index.txt file.
7381 This way one no longer has to edit the index.txt file manually for
7382 revoking a certificate. The -revoke option does the gory details now.
7383 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7385 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7386 `-text' option at all and this way the `-noout -text' combination was
7387 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7388 [Ralf S. Engelschall]
7390 *) Make sure a corresponding plain text error message exists for the
7391 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7392 verify callback function determined that a certificate was revoked.
7393 [Ralf S. Engelschall]
7395 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7396 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7397 all available cipers including rc5, which was forgotten until now.
7398 In order to let the testing shell script know which algorithms
7399 are available, a new (up to now undocumented) command
7400 "openssl list-cipher-commands" is used.
7403 *) Bugfix: s_client occasionally would sleep in select() when
7404 it should have checked SSL_pending() first.
7407 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7408 the raw DSA values prior to ASN.1 encoding.
7411 *) Tweaks to Configure
7412 [Niels Poppe <niels@netbox.org>]
7414 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7418 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7421 *) New config option to avoid instructions that are illegal on the 80386.
7422 The default code is faster, but requires at least a 486.
7425 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7426 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7427 same as SSL2_VERSION anyway.
7430 *) New "-showcerts" option for s_client.
7433 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7434 application. Various cleanups and fixes.
7437 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7438 modify error routines to work internally. Add error codes and PBE init
7439 to library startup routines.
7442 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7443 packing functions to asn1 and evp. Changed function names and error
7444 codes along the way.
7447 *) PKCS12 integration: and so it begins... First of several patches to
7448 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7449 objects to objects.h
7452 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7453 and display support for Thawte strong extranet extension.
7456 *) Add LinuxPPC support.
7457 [Jeff Dubrule <igor@pobox.org>]
7459 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7460 bn_div_words in alpha.s.
7461 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7463 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7464 OAEP isn't supported when OpenSSL is built with RSAref.
7465 [Ulf Moeller <ulf@fitug.de>]
7467 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7468 so they no longer are missing under -DNOPROTO.
7469 [Soren S. Jorvang <soren@t.dk>]
7472 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7474 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7475 doesn't work when the session is reused. Coming soon!
7478 *) Fix a security hole, that allows sessions to be reused in the wrong
7479 context thus bypassing client cert protection! All software that uses
7480 client certs and session caches in multiple contexts NEEDS PATCHING to
7481 allow session reuse! A fuller solution is in the works.
7482 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7484 *) Some more source tree cleanups (removed obsolete files
7485 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7486 permission on "config" script to be executable) and a fix for the INSTALL
7488 [Ulf Moeller <ulf@fitug.de>]
7490 *) Remove some legacy and erroneous uses of malloc, free instead of
7492 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7494 *) Make rsa_oaep_test return non-zero on error.
7495 [Ulf Moeller <ulf@fitug.de>]
7497 *) Add support for native Solaris shared libraries. Configure
7498 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7499 if someone would make that last step automatic.
7500 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7502 *) ctx_size was not built with the right compiler during "make links". Fixed.
7505 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7506 except NULL ciphers". This means the default cipher list will no longer
7507 enable NULL ciphers. They need to be specifically enabled e.g. with
7508 the string "DEFAULT:eNULL".
7511 *) Fix to RSA private encryption routines: if p < q then it would
7512 occasionally produce an invalid result. This will only happen with
7513 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7516 *) Be less restrictive and allow also `perl util/perlpath.pl
7517 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7518 because this way one can also use an interpreter named `perl5' (which is
7519 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7520 installed as `perl').
7521 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7523 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7524 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7526 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7527 advapi32.lib to Win32 build and change the pem test comparision
7528 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7529 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7530 and crypto/des/ede_cbcm_enc.c.
7533 *) DES quad checksum was broken on big-endian architectures. Fixed.
7536 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7537 Win32 test batch file so it (might) work again. The Win32 test batch file
7538 is horrible: I feel ill....
7541 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7542 in e_os.h. Audit of header files to check ANSI and non ANSI
7543 sections: 10 functions were absent from non ANSI section and not exported
7544 from Windows DLLs. Fixed up libeay.num for new functions.
7547 *) Make `openssl version' output lines consistent.
7548 [Ralf S. Engelschall]
7550 *) Fix Win32 symbol export lists for BIO functions: Added
7551 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7552 to ms/libeay{16,32}.def.
7553 [Ralf S. Engelschall]
7555 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7556 fine under Unix and passes some trivial tests I've now added. But the
7557 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7558 added to make sure no one expects that this stuff really works in the
7559 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7560 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7562 [Ralf S. Engelschall]
7564 *) Fix the generation of two part addresses in perl.
7565 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7567 *) Add config entry for Linux on MIPS.
7568 [John Tobey <jtobey@channel1.com>]
7570 *) Make links whenever Configure is run, unless we are on Windoze.
7573 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7574 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7578 *) Add a useful kludge to allow package maintainers to specify compiler and
7579 other platforms details on the command line without having to patch the
7580 Configure script everytime: One now can use ``perl Configure
7581 <id>:<details>'', i.e. platform ids are allowed to have details appended
7582 to them (seperated by colons). This is treated as there would be a static
7583 pre-configured entry in Configure's %table under key <id> with value
7584 <details> and ``perl Configure <id>'' is called. So, when you want to
7585 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7586 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7587 now, which overrides the FreeBSD-elf entry on-the-fly.
7588 [Ralf S. Engelschall]
7590 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7593 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7594 on the `perl Configure ...' command line. This way one can compile
7595 OpenSSL libraries with Position Independent Code (PIC) which is needed
7596 for linking it into DSOs.
7597 [Ralf S. Engelschall]
7599 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7603 *) Cleaned up the LICENSE document: The official contact for any license
7604 questions now is the OpenSSL core team under openssl-core@openssl.org.
7605 And add a paragraph about the dual-license situation to make sure people
7606 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7607 to the OpenSSL toolkit.
7608 [Ralf S. Engelschall]
7610 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7611 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7612 Additonally cleaned up the `make links' target: Remove unnecessary
7613 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7614 to speed processing and no longer clutter the display with confusing
7615 stuff. Instead only the actually done links are displayed.
7616 [Ralf S. Engelschall]
7618 *) Permit null encryption ciphersuites, used for authentication only. It used
7619 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7620 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7624 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7625 signed attributes when verifying signatures (this would break them),
7626 the detached data encoding was wrong and public keys obtained using
7627 X509_get_pubkey() weren't freed.
7630 *) Add text documentation for the BUFFER functions. Also added a work around
7631 to a Win95 console bug. This was triggered by the password read stuff: the
7632 last character typed gets carried over to the next fread(). If you were
7633 generating a new cert request using 'req' for example then the last
7634 character of the passphrase would be CR which would then enter the first
7638 *) Added the new `Includes OpenSSL Cryptography Software' button as
7639 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7640 button and can be used by applications based on OpenSSL to show the
7641 relationship to the OpenSSL project.
7642 [Ralf S. Engelschall]
7644 *) Remove confusing variables in function signatures in files
7645 ssl/ssl_lib.c and ssl/ssl.h.
7646 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7648 *) Don't install bss_file.c under PREFIX/include/
7649 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7651 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7652 functions that return function pointers and has support for NT specific
7653 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7654 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7655 unsigned to signed types: this was killing the Win32 compile.
7658 *) Add new certificate file to stack functions,
7659 SSL_add_dir_cert_subjects_to_stack() and
7660 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7661 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7662 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7663 This means that Apache-SSL and similar packages don't have to mess around
7664 to add as many CAs as they want to the preferred list.
7667 *) Experiment with doxygen documentation. Currently only partially applied to
7669 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7670 openssl.doxy as the configuration file.
7673 *) Get rid of remaining C++-style comments which strict C compilers hate.
7674 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7676 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7677 compiled in by default: it has problems with large keys.
7680 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7681 DH private keys and/or callback functions which directly correspond to
7682 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7683 is needed for applications which have to configure certificates on a
7684 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7686 For the RSA certificate situation is makes no difference, but
7687 for the DSA certificate situation this fixes the "no shared cipher"
7688 problem where the OpenSSL cipher selection procedure failed because the
7689 temporary keys were not overtaken from the context and the API provided
7690 no way to reconfigure them.
7691 The new functions now let applications reconfigure the stuff and they
7692 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7693 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7694 non-public-API function ssl_cert_instantiate() is used as a helper
7695 function and also to reduce code redundancy inside ssl_rsa.c.
7696 [Ralf S. Engelschall]
7698 *) Move s_server -dcert and -dkey options out of the undocumented feature
7699 area because they are useful for the DSA situation and should be
7700 recognized by the users.
7701 [Ralf S. Engelschall]
7703 *) Fix the cipher decision scheme for export ciphers: the export bits are
7704 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7705 SSL_EXP_MASK. So, the original variable has to be used instead of the
7706 already masked variable.
7707 [Richard Levitte <levitte@stacken.kth.se>]
7709 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7710 [Richard Levitte <levitte@stacken.kth.se>]
7712 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7713 from `int' to `unsigned int' because it's a length and initialized by
7714 EVP_DigestFinal() which expects an `unsigned int *'.
7715 [Richard Levitte <levitte@stacken.kth.se>]
7717 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7718 script. Instead use the usual Shell->Perl transition trick.
7719 [Ralf S. Engelschall]
7721 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7722 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7723 -noout -modulus' as it's already the case for `openssl rsa -noout
7724 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7725 currently the public key is printed (a decision which was already done by
7726 `openssl dsa -modulus' in the past) which serves a similar purpose.
7727 Additionally the NO_RSA no longer completely removes the whole -modulus
7728 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7730 [Ralf S. Engelschall]
7732 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7733 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7734 [Arne Ansper <arne@ats.cyber.ee>]
7736 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7737 to be added. Now both 'req' and 'ca' can use new objects defined in the
7741 *) Add cool BIO that does syslog (or event log on NT).
7742 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7744 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7745 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7746 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7747 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7750 *) Add preliminary config info for new extension code.
7753 *) Make RSA_NO_PADDING really use no padding.
7754 [Ulf Moeller <ulf@fitug.de>]
7756 *) Generate errors when private/public key check is done.
7759 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7760 for some CRL extensions and new objects added.
7763 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7764 key usage extension and fuller support for authority key id.
7767 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7768 padding method for RSA, which is recommended for new applications in PKCS
7769 #1 v2.0 (RFC 2437, October 1998).
7770 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7771 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7772 against Bleichbacher's attack on RSA.
7773 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7776 *) Updates to the new SSL compression code
7777 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7779 *) Fix so that the version number in the master secret, when passed
7780 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7781 (because the server will not accept higher), that the version number
7782 is 0x03,0x01, not 0x03,0x00
7783 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7785 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7786 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7787 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7790 *) Support for RAW extensions where an arbitrary extension can be
7791 created by including its DER encoding. See apps/openssl.cnf for
7795 *) Make sure latest Perl versions don't interpret some generated C array
7796 code as Perl array code in the crypto/err/err_genc.pl script.
7797 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7799 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7800 not many people have the assembler. Various Win32 compilation fixes and
7801 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7805 *) Modify configure script 'Configure' to automatically create crypto/date.h
7806 file under Win32 and also build pem.h from pem.org. New script
7807 util/mkfiles.pl to create the MINFO file on environments that can't do a
7808 'make files': perl util/mkfiles.pl >MINFO should work.
7811 *) Major rework of DES function declarations, in the pursuit of correctness
7812 and purity. As a result, many evil casts evaporated, and some weirdness,
7813 too. You may find this causes warnings in your code. Zapping your evil
7814 casts will probably fix them. Mostly.
7817 *) Fix for a typo in asn1.h. Bug fix to object creation script
7818 obj_dat.pl. It considered a zero in an object definition to mean
7819 "end of object": none of the objects in objects.h have any zeros
7820 so it wasn't spotted.
7821 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7823 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7824 Masking (CBCM). In the absence of test vectors, the best I have been able
7825 to do is check that the decrypt undoes the encrypt, so far. Send me test
7826 vectors if you have them.
7829 *) Correct calculation of key length for export ciphers (too much space was
7830 allocated for null ciphers). This has not been tested!
7833 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7834 message is now correct (it understands "crypto" and "ssl" on its
7835 command line). There is also now an "update" option. This will update
7836 the util/ssleay.num and util/libeay.num files with any new functions.
7838 perl util/mkdef.pl crypto ssl update
7839 it will update them.
7842 *) Overhauled the Perl interface (perl/*):
7843 - ported BN stuff to OpenSSL's different BN library
7844 - made the perl/ source tree CVS-aware
7845 - renamed the package from SSLeay to OpenSSL (the files still contain
7846 their history because I've copied them in the repository)
7847 - removed obsolete files (the test scripts will be replaced
7848 by better Test::Harness variants in the future)
7849 [Ralf S. Engelschall]
7851 *) First cut for a very conservative source tree cleanup:
7852 1. merge various obsolete readme texts into doc/ssleay.txt
7853 where we collect the old documents and readme texts.
7854 2. remove the first part of files where I'm already sure that we no
7855 longer need them because of three reasons: either they are just temporary
7856 files which were left by Eric or they are preserved original files where
7857 I've verified that the diff is also available in the CVS via "cvs diff
7858 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7859 the crypto/md/ stuff).
7860 [Ralf S. Engelschall]
7862 *) More extension code. Incomplete support for subject and issuer alt
7863 name, issuer and authority key id. Change the i2v function parameters
7864 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7865 what that's for :-) Fix to ASN1 macro which messed up
7866 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7869 *) Preliminary support for ENUMERATED type. This is largely copied from the
7873 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7874 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7876 *) Make sure `make rehash' target really finds the `openssl' program.
7877 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7879 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7880 like to hear about it if this slows down other processors.
7883 *) Add CygWin32 platform information to Configure script.
7884 [Alan Batie <batie@aahz.jf.intel.com>]
7886 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7887 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7889 *) New program nseq to manipulate netscape certificate sequences
7892 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7896 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7897 but the BN code had some problems that would cause failures when
7898 doing certificate verification and some other functions.
7899 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7901 *) Add ASN1 and PEM code to support netscape certificate sequences.
7904 *) Add ASN1 and PEM code to support netscape certificate sequences.
7907 *) Add several PKIX and private extended key usage OIDs.
7910 *) Modify the 'ca' program to handle the new extension code. Modify
7911 openssl.cnf for new extension format, add comments.
7914 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7915 and add a sample to openssl.cnf so req -x509 now adds appropriate
7919 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7920 error code, add initial support to X509_print() and x509 application.
7923 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7924 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7925 stuff is currently isolated and isn't even compiled yet.
7928 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7929 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7930 Removed the versions check from X509 routines when loading extensions:
7931 this allows certain broken certificates that don't set the version
7932 properly to be processed.
7935 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7936 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7937 can still be regenerated with "make depend".
7940 *) Spelling mistake in C version of CAST-128.
7941 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7943 *) Changes to the error generation code. The perl script err-code.pl
7944 now reads in the old error codes and retains the old numbers, only
7945 adding new ones if necessary. It also only changes the .err files if new
7946 codes are added. The makefiles have been modified to only insert errors
7947 when needed (to avoid needlessly modifying header files). This is done
7948 by only inserting errors if the .err file is newer than the auto generated
7949 C file. To rebuild all the error codes from scratch (the old behaviour)
7950 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7951 or delete all the .err files.
7954 *) CAST-128 was incorrectly implemented for short keys. The C version has
7955 been fixed, but is untested. The assembler versions are also fixed, but
7956 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7957 to regenerate it if needed.
7958 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7959 Hagino <itojun@kame.net>]
7961 *) File was opened incorrectly in randfile.c.
7962 [Ulf Möller <ulf@fitug.de>]
7964 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7965 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7966 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7967 al: it's just almost always a UTCTime. Note this patch adds new error
7968 codes so do a "make errors" if there are problems.
7971 *) Correct Linux 1 recognition in config.
7972 [Ulf Möller <ulf@fitug.de>]
7974 *) Remove pointless MD5 hash when using DSA keys in ca.
7975 [Anonymous <nobody@replay.com>]
7977 *) Generate an error if given an empty string as a cert directory. Also
7978 generate an error if handed NULL (previously returned 0 to indicate an
7979 error, but didn't set one).
7980 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7982 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7985 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7986 parameters. This was causing a warning which killed off the Win32 compile.
7989 *) Remove C++ style comments from crypto/bn/bn_local.h.
7990 [Neil Costigan <neil.costigan@celocom.com>]
7992 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7993 based on a text string, looking up short and long names and finally
7994 "dot" format. The "dot" format stuff didn't work. Added new function
7995 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7996 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7997 OID is not part of the table.
8000 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8001 X509_LOOKUP_by_alias().
8004 *) Sort openssl functions by name.
8007 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8008 encryption from sample DSA keys (in case anyone is interested the password
8012 *) Make _all_ *_free functions accept a NULL pointer.
8013 [Frans Heymans <fheymans@isaserver.be>]
8015 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8017 [Anonymous <nobody@replay.com>]
8019 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8020 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8022 *) Don't blow it for numeric -newkey arguments to apps/req.
8023 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8025 *) Temp key "for export" tests were wrong in s3_srvr.c.
8026 [Anonymous <nobody@replay.com>]
8028 *) Add prototype for temp key callback functions
8029 SSL_CTX_set_tmp_{rsa,dh}_callback().
8032 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8033 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8036 *) X509_name_add_entry() freed the wrong thing after an error.
8037 [Arne Ansper <arne@ats.cyber.ee>]
8039 *) rsa_eay.c would attempt to free a NULL context.
8040 [Arne Ansper <arne@ats.cyber.ee>]
8042 *) BIO_s_socket() had a broken should_retry() on Windoze.
8043 [Arne Ansper <arne@ats.cyber.ee>]
8045 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8046 [Arne Ansper <arne@ats.cyber.ee>]
8048 *) Make sure the already existing X509_STORE->depth variable is initialized
8049 in X509_STORE_new(), but document the fact that this variable is still
8050 unused in the certificate verification process.
8051 [Ralf S. Engelschall]
8053 *) Fix the various library and apps files to free up pkeys obtained from
8054 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8057 *) Fix reference counting in X509_PUBKEY_get(). This makes
8058 demos/maurice/example2.c work, amongst others, probably.
8059 [Steve Henson and Ben Laurie]
8061 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8062 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8063 are no longer created. This way we have a single and consistent command
8064 line interface `openssl <command>', similar to `cvs <command>'.
8065 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8067 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8068 BIT STRING wrapper always have zero unused bits.
8071 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8074 *) Make the top-level INSTALL documentation easier to understand.
8077 *) Makefiles updated to exit if an error occurs in a sub-directory
8078 make (including if user presses ^C) [Paul Sutton]
8080 *) Make Montgomery context stuff explicit in RSA data structure.
8083 *) Fix build order of pem and err to allow for generated pem.h.
8086 *) Fix renumbering bug in X509_NAME_delete_entry().
8089 *) Enhanced the err-ins.pl script so it makes the error library number
8090 global and can add a library name. This is needed for external ASN1 and
8091 other error libraries.
8094 *) Fixed sk_insert which never worked properly.
8097 *) Fix ASN1 macros so they can handle indefinite length construted
8098 EXPLICIT tags. Some non standard certificates use these: they can now
8102 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8103 into a single doc/ssleay.txt bundle. This way the information is still
8104 preserved but no longer messes up this directory. Now it's new room for
8105 the new set of documenation files.
8106 [Ralf S. Engelschall]
8108 *) SETs were incorrectly DER encoded. This was a major pain, because they
8109 shared code with SEQUENCEs, which aren't coded the same. This means that
8110 almost everything to do with SETs or SEQUENCEs has either changed name or
8111 number of arguments.
8112 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8114 *) Fix test data to work with the above.
8117 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8118 was already fixed by Eric for 0.9.1 it seems.
8119 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8121 *) Autodetect FreeBSD3.
8124 *) Fix various bugs in Configure. This affects the following platforms:
8128 unixware-2.0-pentium
8132 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8133 before they are needed.
8136 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8140 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8142 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8143 changed SSLeay to OpenSSL in version strings.
8144 [Ralf S. Engelschall]
8146 *) Some fixups to the top-level documents.
8149 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8150 because the symlink to include/ was missing.
8151 [Ralf S. Engelschall]
8153 *) Incorporated the popular no-RSA/DSA-only patches
8154 which allow to compile a RSA-free SSLeay.
8155 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8157 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8158 when "ssleay" is still not found.
8159 [Ralf S. Engelschall]
8161 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8162 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8164 *) Updated the README file.
8165 [Ralf S. Engelschall]
8167 *) Added various .cvsignore files in the CVS repository subdirs
8168 to make a "cvs update" really silent.
8169 [Ralf S. Engelschall]
8171 *) Recompiled the error-definition header files and added
8172 missing symbols to the Win32 linker tables.
8173 [Ralf S. Engelschall]
8175 *) Cleaned up the top-level documents;
8176 o new files: CHANGES and LICENSE
8177 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8178 o merged COPYRIGHT into LICENSE
8179 o removed obsolete TODO file
8180 o renamed MICROSOFT to INSTALL.W32
8181 [Ralf S. Engelschall]
8183 *) Removed dummy files from the 0.9.1b source tree:
8184 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8185 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8186 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8187 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8188 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8189 [Ralf S. Engelschall]
8191 *) Added various platform portability fixes.
8194 *) The Genesis of the OpenSSL rpject:
8195 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8196 Young and Tim J. Hudson created while they were working for C2Net until
8198 [The OpenSSL Project]
8201 Changes between 0.9.0b and 0.9.1b [not released]
8203 *) Updated a few CA certificates under certs/
8206 *) Changed some BIGNUM api stuff.
8209 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8210 DGUX x86, Linux Alpha, etc.
8213 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8214 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8218 *) Add -strparse option to asn1pars program which parses nested
8220 [Dr Stephen Henson <shenson@bigfoot.com>]
8222 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8225 *) DSA fix for "ca" program.
8228 *) Added "-genkey" option to "dsaparam" program.
8231 *) Added RIPE MD160 (rmd160) message digest.
8234 *) Added -a (all) option to "ssleay version" command.
8237 *) Added PLATFORM define which is the id given to Configure.
8240 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8243 *) Extended the ASN.1 parser routines.
8246 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8249 *) Added a BN_CTX to the BN library.
8252 *) Fixed the weak key values in DES library
8255 *) Changed API in EVP library for cipher aliases.
8258 *) Added support for RC2/64bit cipher.
8261 *) Converted the lhash library to the crypto/mem.c functions.
8264 *) Added more recognized ASN.1 object ids.
8267 *) Added more RSA padding checks for SSL/TLS.
8270 *) Added BIO proxy/filter functionality.
8273 *) Added extra_certs to SSL_CTX which can be used
8274 send extra CA certificates to the client in the CA cert chain sending
8275 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8278 *) Now Fortezza is denied in the authentication phase because
8279 this is key exchange mechanism is not supported by SSLeay at all.
8282 *) Additional PKCS1 checks.
8285 *) Support the string "TLSv1" for all TLS v1 ciphers.
8288 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8289 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8292 *) Fixed a few memory leaks.
8295 *) Fixed various code and comment typos.
8298 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8299 bytes sent in the client random.
8300 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob