5 Changes between 0.9.8j and 0.9.8k [xx XXX xxxx]
7 *) Permit restricted recursion of ASN1 strings. This is needed in practice
8 to handle some structures.
11 *) Improve efficiency of mem_gets: don't search whole buffer each time
13 [Jeremy Shapiro <jnshapir@us.ibm.com>]
15 *) New -hex option for openssl rand.
18 *) Print out UTF8String and NumericString when parsing ASN1.
21 *) Support NumericString type for name components.
24 *) Allow CC in the environment to override the automatically chosen
25 compiler. Note that nothing is done to ensure flags work with the
29 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
31 *) Properly check EVP_VerifyFinal() and similar return values
33 [Ben Laurie, Bodo Moeller, Google Security Team]
35 *) Enable TLS extensions by default.
38 *) Allow the CHIL engine to be loaded, whether the application is
39 multithreaded or not. (This does not release the developer from the
40 obligation to set up the dynamic locking callbacks.)
41 [Sander Temme <sander@temme.net>]
43 *) Use correct exit code if there is an error in dgst command.
44 [Steve Henson; problem pointed out by Roland Dirlewanger]
46 *) Tweak Configure so that you need to say "experimental-jpake" to enable
47 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
50 *) Add experimental JPAKE support, including demo authentication in
51 s_client and s_server.
54 *) Set the comparison function in v3_addr_canonize().
55 [Rob Austein <sra@hactrn.net>]
57 *) Add support for XMPP STARTTLS in s_client.
58 [Philip Paeps <philip@freebsd.org>]
60 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
61 to ensure that even with this option, only ciphersuites in the
62 server's preference list will be accepted. (Note that the option
63 applies only when resuming a session, so the earlier behavior was
64 just about the algorithm choice for symmetric cryptography.)
67 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
69 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
70 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
73 *) The fix in 0.9.8c that supposedly got rid of unsafe
74 double-checked locking was incomplete for RSA blinding,
75 addressing just one layer of what turns out to have been
76 doubly unsafe triple-checked locking.
78 So now fix this for real by retiring the MONT_HELPER macro
79 in crypto/rsa/rsa_eay.c.
81 [Bodo Moeller; problem pointed out by Marius Schilder]
83 *) Various precautionary measures:
85 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
87 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
88 (NB: This would require knowledge of the secret session ticket key
89 to exploit, in which case you'd be SOL either way.)
91 - Change bn_nist.c so that it will properly handle input BIGNUMs
92 outside the expected range.
94 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
97 [Neel Mehta, Bodo Moeller]
99 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
100 the load fails. Useful for distros.
101 [Ben Laurie and the FreeBSD team]
103 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
106 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
109 *) Expand ENGINE to support engine supplied SSL client certificate functions.
111 This work was sponsored by Logica.
114 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
115 keystores. Support for SSL/TLS client authentication too.
116 Not compiled unless enable-capieng specified to Configure.
118 This work was sponsored by Logica.
121 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
122 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
123 attribute creation routines such as certifcate requests and PKCS#12
127 Changes between 0.9.8g and 0.9.8h [28 May 2008]
129 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
130 handshake which could lead to a cilent crash as found using the
131 Codenomicon TLS test suite (CVE-2008-1672)
132 [Steve Henson, Mark Cox]
134 *) Fix double free in TLS server name extensions which could lead to
135 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
138 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
140 Clear the error queue to ensure that error entries left from
141 older function calls do not interfere with the correct operation.
142 [Lutz Jaenicke, Erik de Castro Lopo]
144 *) Remove root CA certificates of commercial CAs:
146 The OpenSSL project does not recommend any specific CA and does not
147 have any policy with respect to including or excluding any CA.
148 Therefore it does not make any sense to ship an arbitrary selection
149 of root CA certificates with the OpenSSL software.
152 *) RSA OAEP patches to fix two separate invalid memory reads.
153 The first one involves inputs when 'lzero' is greater than
154 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
155 before the beginning of from). The second one involves inputs where
156 the 'db' section contains nothing but zeroes (there is a one-byte
157 invalid read after the end of 'db').
158 [Ivan Nestlerode <inestlerode@us.ibm.com>]
160 *) Partial backport from 0.9.9-dev:
162 Introduce bn_mul_mont (dedicated Montgomery multiplication
163 procedure) as a candidate for BIGNUM assembler implementation.
164 While 0.9.9-dev uses assembler for various architectures, only
165 x86_64 is available by default here in the 0.9.8 branch, and
166 32-bit x86 is available through a compile-time setting.
168 To try the 32-bit x86 assembler implementation, use Configure
169 option "enable-montasm" (which exists only for this backport).
171 As "enable-montasm" for 32-bit x86 disclaims code stability
172 anyway, in this constellation we activate additional code
173 backported from 0.9.9-dev for further performance improvements,
174 namely BN_from_montgomery_word. (To enable this otherwise,
175 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
177 [Andy Polyakov (backport partially by Bodo Moeller)]
179 *) Add TLS session ticket callback. This allows an application to set
180 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
181 values. This is useful for key rollover for example where several key
182 sets may exist with different names.
185 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
186 This was broken until now in 0.9.8 releases, such that the only way
187 a registered ENGINE could be used (assuming it initialises
188 successfully on the host) was to explicitly set it as the default
189 for the relevant algorithms. This is in contradiction with 0.9.7
190 behaviour and the documentation. With this fix, when an ENGINE is
191 registered into a given algorithm's table of implementations, the
192 'uptodate' flag is reset so that auto-discovery will be used next
193 time a new context for that algorithm attempts to select an
195 [Ian Lister (tweaked by Geoff Thorpe)]
197 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
198 implemention in the following ways:
200 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
203 Lack of BER streaming support means one pass streaming processing is
204 only supported if data is detached: setting the streaming flag is
205 ignored for embedded content.
207 CMS support is disabled by default and must be explicitly enabled
208 with the enable-cms configuration option.
211 *) Update the GMP engine glue to do direct copies between BIGNUM and
212 mpz_t when openssl and GMP use the same limb size. Otherwise the
213 existing "conversion via a text string export" trick is still used.
214 [Paul Sheer <paulsheer@gmail.com>]
216 *) Zlib compression BIO. This is a filter BIO which compressed and
217 uncompresses any data passed through it.
220 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
221 RFC3394 compatible AES key wrapping.
224 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
225 sets string data without copying. X509_ALGOR_set0() and
226 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
227 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
228 from an X509_ATTRIBUTE structure optionally checking it occurs only
229 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
233 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
234 to get the expected BN_FLG_CONSTTIME behavior.
235 [Bodo Moeller (Google)]
239 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
240 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
241 - added some more tests to do_tests.pl
242 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
243 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
244 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
245 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
246 - various changes to netware.pl to enable gcc-cross builds on Win32
248 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
249 - various changes to fix missing prototype warnings
250 - fixed x86nasm.pl to create correct asm files for NASM COFF output
251 - added AES, WHIRLPOOL and CPUID assembler code to build files
252 - added missing AES assembler make rules to mk1mf.pl
253 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
254 [Guenter Knauf <eflash@gmx.net>]
256 *) Implement certificate status request TLS extension defined in RFC3546.
257 A client can set the appropriate parameters and receive the encoded
258 OCSP response via a callback. A server can query the supplied parameters
259 and set the encoded OCSP response in the callback. Add simplified examples
260 to s_client and s_server.
263 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
266 + Binary incompatibility of ssl_ctx_st structure
267 + DTLS interoperation with non-compliant servers
268 + Don't call get_session_cb() without proposed session
269 + Fix ia64 assembler code
270 [Andy Polyakov, Steve Henson]
272 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
274 *) DTLS Handshake overhaul. There were longstanding issues with
275 OpenSSL DTLS implementation, which were making it impossible for
276 RFC 4347 compliant client to communicate with OpenSSL server.
277 Unfortunately just fixing these incompatibilities would "cut off"
278 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
279 server keeps tolerating non RFC compliant syntax. The opposite is
280 not true, 0.9.8f client can not communicate with earlier server.
281 This update even addresses CVE-2007-4995.
284 *) Changes to avoid need for function casts in OpenSSL: some compilers
285 (gcc 4.2 and later) reject their use.
286 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
289 *) Add RFC4507 support to OpenSSL. This includes the corrections in
290 RFC4507bis. The encrypted ticket format is an encrypted encoded
291 SSL_SESSION structure, that way new session features are automatically
294 If a client application caches session in an SSL_SESSION structure
295 support is transparent because tickets are now stored in the encoded
298 The SSL_CTX structure automatically generates keys for ticket
299 protection in servers so again support should be possible
300 with no application modification.
302 If a client or server wishes to disable RFC4507 support then the option
303 SSL_OP_NO_TICKET can be set.
305 Add a TLS extension debugging callback to allow the contents of any client
306 or server extensions to be examined.
308 This work was sponsored by Google.
311 *) Add initial support for TLS extensions, specifically for the server_name
312 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
313 have new members for a host name. The SSL data structure has an
314 additional member SSL_CTX *initial_ctx so that new sessions can be
315 stored in that context to allow for session resumption, even after the
316 SSL has been switched to a new SSL_CTX in reaction to a client's
317 server_name extension.
319 New functions (subject to change):
322 SSL_get_servername_type()
325 New CTRL codes and macros (subject to change):
327 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
328 - SSL_CTX_set_tlsext_servername_callback()
329 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
330 - SSL_CTX_set_tlsext_servername_arg()
331 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
333 openssl s_client has a new '-servername ...' option.
335 openssl s_server has new options '-servername_host ...', '-cert2 ...',
336 '-key2 ...', '-servername_fatal' (subject to change). This allows
337 testing the HostName extension for a specific single host name ('-cert'
338 and '-key' remain fallbacks for handshakes without HostName
339 negotiation). If the unrecogninzed_name alert has to be sent, this by
340 default is a warning; it becomes fatal with the '-servername_fatal'
343 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
345 *) Add AES and SSE2 assembly language support to VC++ build.
348 *) Mitigate attack on final subtraction in Montgomery reduction.
351 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
352 (which previously caused an internal error).
355 *) Squeeze another 10% out of IGE mode when in != out.
358 *) AES IGE mode speedup.
359 [Dean Gaudet (Google)]
361 *) Add the Korean symmetric 128-bit cipher SEED (see
362 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
363 add SEED ciphersuites from RFC 4162:
365 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
366 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
367 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
368 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
370 To minimize changes between patchlevels in the OpenSSL 0.9.8
371 series, SEED remains excluded from compilation unless OpenSSL
372 is configured with 'enable-seed'.
375 *) Mitigate branch prediction attacks, which can be practical if a
376 single processor is shared, allowing a spy process to extract
377 information. For detailed background information, see
378 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
379 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
380 and Necessary Software Countermeasures"). The core of the change
381 are new versions BN_div_no_branch() and
382 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
383 respectively, which are slower, but avoid the security-relevant
384 conditional branches. These are automatically called by BN_div()
385 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
386 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
387 remove a conditional branch.
389 BN_FLG_CONSTTIME is the new name for the previous
390 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
391 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
392 in the exponent causes BN_mod_exp_mont() to use the alternative
393 implementation in BN_mod_exp_mont_consttime().) The old name
394 remains as a deprecated alias.
396 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
397 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
398 constant-time implementations for more than just exponentiation.
399 Here too the old name is kept as a deprecated alias.
401 BN_BLINDING_new() will now use BN_dup() for the modulus so that
402 the BN_BLINDING structure gets an independent copy of the
403 modulus. This means that the previous "BIGNUM *m" argument to
404 BN_BLINDING_new() and to BN_BLINDING_create_param() now
405 essentially becomes "const BIGNUM *m", although we can't actually
406 change this in the header file before 0.9.9. It allows
407 RSA_setup_blinding() to use BN_with_flags() on the modulus to
408 enable BN_FLG_CONSTTIME.
410 [Matthew D Wood (Intel Corp)]
412 *) In the SSL/TLS server implementation, be strict about session ID
413 context matching (which matters if an application uses a single
414 external cache for different purposes). Previously,
415 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
416 set. This did ensure strict client verification, but meant that,
417 with applications using a single external cache for quite
418 different requirements, clients could circumvent ciphersuite
419 restrictions for a given session ID context by starting a session
420 in a different context.
423 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
424 a ciphersuite string such as "DEFAULT:RSA" cannot enable
425 authentication-only ciphersuites.
428 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
429 not complete and could lead to a possible single byte overflow
430 (CVE-2007-5135) [Ben Laurie]
432 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
434 *) Since AES128 and AES256 (and similarly Camellia128 and
435 Camellia256) share a single mask bit in the logic of
436 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
437 kludge to work properly if AES128 is available and AES256 isn't
438 (or if Camellia128 is available and Camellia256 isn't).
441 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
442 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
443 When a point or a seed is encoded in a BIT STRING, we need to
444 prevent the removal of trailing zero bits to get the proper DER
445 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
446 of a NamedBitList, for which trailing 0 bits need to be removed.)
449 *) Have SSL/TLS server implementation tolerate "mismatched" record
450 protocol version while receiving ClientHello even if the
451 ClientHello is fragmented. (The server can't insist on the
452 particular protocol version it has chosen before the ServerHello
453 message has informed the client about his choice.)
456 *) Add RFC 3779 support.
457 [Rob Austein for ARIN, Ben Laurie]
459 *) Load error codes if they are not already present instead of using a
460 static variable. This allows them to be cleanly unloaded and reloaded.
461 Improve header file function name parsing.
464 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
465 or CAPABILITY handshake as required by RFCs.
468 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
470 *) Introduce limits to prevent malicious keys being able to
471 cause a denial of service. (CVE-2006-2940)
472 [Steve Henson, Bodo Moeller]
474 *) Fix ASN.1 parsing of certain invalid structures that can result
475 in a denial of service. (CVE-2006-2937) [Steve Henson]
477 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
478 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
480 *) Fix SSL client code which could crash if connecting to a
481 malicious SSLv2 server. (CVE-2006-4343)
482 [Tavis Ormandy and Will Drewry, Google Security Team]
484 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
485 match only those. Before that, "AES256-SHA" would be interpreted
486 as a pattern and match "AES128-SHA" too (since AES128-SHA got
487 the same strength classification in 0.9.7h) as we currently only
488 have a single AES bit in the ciphersuite description bitmap.
489 That change, however, also applied to ciphersuite strings such as
490 "RC4-MD5" that intentionally matched multiple ciphersuites --
491 namely, SSL 2.0 ciphersuites in addition to the more common ones
492 from SSL 3.0/TLS 1.0.
494 So we change the selection algorithm again: Naming an explicit
495 ciphersuite selects this one ciphersuite, and any other similar
496 ciphersuite (same bitmap) from *other* protocol versions.
497 Thus, "RC4-MD5" again will properly select both the SSL 2.0
498 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
500 Since SSL 2.0 does not have any ciphersuites for which the
501 128/256 bit distinction would be relevant, this works for now.
502 The proper fix will be to use different bits for AES128 and
503 AES256, which would have avoided the problems from the beginning;
504 however, bits are scarce, so we can only do this in a new release
505 (not just a patchlevel) when we can change the SSL_CIPHER
506 definition to split the single 'unsigned long mask' bitmap into
507 multiple values to extend the available space.
511 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
513 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
514 (CVE-2006-4339) [Ben Laurie and Google Security Team]
516 *) Add AES IGE and biIGE modes.
519 *) Change the Unix randomness entropy gathering to use poll() when
520 possible instead of select(), since the latter has some
521 undesirable limitations.
522 [Darryl Miles via Richard Levitte and Bodo Moeller]
524 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
525 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
526 cannot be implicitly activated as part of, e.g., the "AES" alias.
527 However, please upgrade to OpenSSL 0.9.9[-dev] for
528 non-experimental use of the ECC ciphersuites to get TLS extension
529 support, which is required for curve and point format negotiation
530 to avoid potential handshake problems.
533 *) Disable rogue ciphersuites:
535 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
536 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
537 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
539 The latter two were purportedly from
540 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
543 Also deactivate the remaining ciphersuites from
544 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
545 unofficial, and the ID has long expired.
548 *) Fix RSA blinding Heisenbug (problems sometimes occured on
549 dual-core machines) and other potential thread-safety issues.
552 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
553 versions), which is now available for royalty-free use
554 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
555 Also, add Camellia TLS ciphersuites from RFC 4132.
557 To minimize changes between patchlevels in the OpenSSL 0.9.8
558 series, Camellia remains excluded from compilation unless OpenSSL
559 is configured with 'enable-camellia'.
562 *) Disable the padding bug check when compression is in use. The padding
563 bug check assumes the first packet is of even length, this is not
564 necessarily true if compresssion is enabled and can result in false
565 positives causing handshake failure. The actual bug test is ancient
566 code so it is hoped that implementations will either have fixed it by
567 now or any which still have the bug do not support compression.
570 Changes between 0.9.8a and 0.9.8b [04 May 2006]
572 *) When applying a cipher rule check to see if string match is an explicit
573 cipher suite and only match that one cipher suite if it is.
576 *) Link in manifests for VC++ if needed.
577 [Austin Ziegler <halostatue@gmail.com>]
579 *) Update support for ECC-based TLS ciphersuites according to
580 draft-ietf-tls-ecc-12.txt with proposed changes (but without
581 TLS extensions, which are supported starting with the 0.9.9
582 branch, not in the OpenSSL 0.9.8 branch).
585 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
586 opaque EVP_CIPHER_CTX handling.
589 *) Fixes and enhancements to zlib compression code. We now only use
590 "zlib1.dll" and use the default __cdecl calling convention on Win32
591 to conform with the standards mentioned here:
592 http://www.zlib.net/DLL_FAQ.txt
593 Static zlib linking now works on Windows and the new --with-zlib-include
594 --with-zlib-lib options to Configure can be used to supply the location
595 of the headers and library. Gracefully handle case where zlib library
599 *) Several fixes and enhancements to the OID generation code. The old code
600 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
601 handle numbers larger than ULONG_MAX, truncated printing and had a
602 non standard OBJ_obj2txt() behaviour.
605 *) Add support for building of engines under engine/ as shared libraries
606 under VC++ build system.
609 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
610 Hopefully, we will not see any false combination of paths any more.
613 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
615 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
616 (part of SSL_OP_ALL). This option used to disable the
617 countermeasure against man-in-the-middle protocol-version
618 rollback in the SSL 2.0 server implementation, which is a bad
619 idea. (CVE-2005-2969)
621 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
622 for Information Security, National Institute of Advanced Industrial
623 Science and Technology [AIST], Japan)]
625 *) Add two function to clear and return the verify parameter flags.
628 *) Keep cipherlists sorted in the source instead of sorting them at
629 runtime, thus removing the need for a lock.
632 *) Avoid some small subgroup attacks in Diffie-Hellman.
633 [Nick Mathewson and Ben Laurie]
635 *) Add functions for well-known primes.
638 *) Extended Windows CE support.
639 [Satoshi Nakamura and Andy Polyakov]
641 *) Initialize SSL_METHOD structures at compile time instead of during
642 runtime, thus removing the need for a lock.
645 *) Make PKCS7_decrypt() work even if no certificate is supplied by
646 attempting to decrypt each encrypted key in turn. Add support to
650 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
652 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
655 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
658 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
659 key into the same file any more.
662 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
665 *) Add -utf8 command line and config file option to 'ca'.
666 [Stefan <stf@udoma.org]
668 *) Removed the macro des_crypt(), as it seems to conflict with some
669 libraries. Use DES_crypt().
672 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
673 involves renaming the source and generated shared-libs for
674 both. The engines will accept the corrected or legacy ids
675 ('ncipher' and '4758_cca' respectively) when binding. NB,
676 this only applies when building 'shared'.
677 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
679 *) Add attribute functions to EVP_PKEY structure. Modify
680 PKCS12_create() to recognize a CSP name attribute and
681 use it. Make -CSP option work again in pkcs12 utility.
684 *) Add new functionality to the bn blinding code:
685 - automatic re-creation of the BN_BLINDING parameters after
686 a fixed number of uses (currently 32)
687 - add new function for parameter creation
688 - introduce flags to control the update behaviour of the
689 BN_BLINDING parameters
690 - hide BN_BLINDING structure
691 Add a second BN_BLINDING slot to the RSA structure to improve
692 performance when a single RSA object is shared among several
696 *) Add support for DTLS.
697 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
699 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
700 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
703 *) Remove buggy and incompletet DH cert support from
704 ssl/ssl_rsa.c and ssl/s3_both.c
707 *) Use SHA-1 instead of MD5 as the default digest algorithm for
708 the apps/openssl applications.
711 *) Compile clean with "-Wall -Wmissing-prototypes
712 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
713 DEBUG_SAFESTACK must also be set.
716 *) Change ./Configure so that certain algorithms can be disabled by default.
717 The new counterpiece to "no-xxx" is "enable-xxx".
719 The patented RC5 and MDC2 algorithms will now be disabled unless
720 "enable-rc5" and "enable-mdc2", respectively, are specified.
722 (IDEA remains enabled despite being patented. This is because IDEA
723 is frequently required for interoperability, and there is no license
724 fee for non-commercial use. As before, "no-idea" can be used to
725 avoid this algorithm.)
729 *) Add processing of proxy certificates (see RFC 3820). This work was
730 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
731 EGEE (Enabling Grids for E-science in Europe).
734 *) RC4 performance overhaul on modern architectures/implementations, such
735 as Intel P4, IA-64 and AMD64.
738 *) New utility extract-section.pl. This can be used specify an alternative
739 section number in a pod file instead of having to treat each file as
740 a separate case in Makefile. This can be done by adding two lines to the
743 =for comment openssl_section:XXX
745 The blank line is mandatory.
749 *) New arguments -certform, -keyform and -pass for s_client and s_server
750 to allow alternative format key and certificate files and passphrase
754 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
755 update associated structures and add various utility functions.
757 Add new policy related verify parameters, include policy checking in
758 standard verify code. Enhance 'smime' application with extra parameters
759 to support policy checking and print out.
762 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
763 Nehemiah processors. These extensions support AES encryption in hardware
764 as well as RNG (though RNG support is currently disabled).
765 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
767 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
770 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
771 [Andy Polyakov and a number of other people]
773 *) Improved PowerPC platform support. Most notably BIGNUM assembler
774 implementation contributed by IBM.
775 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
777 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
778 exponent rather than 'unsigned long'. There is a corresponding change to
779 the new 'rsa_keygen' element of the RSA_METHOD structure.
780 [Jelte Jansen, Geoff Thorpe]
782 *) Functionality for creating the initial serial number file is now
783 moved from CA.pl to the 'ca' utility with a new option -create_serial.
785 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
786 number file to 1, which is bound to cause problems. To avoid
787 the problems while respecting compatibility between different 0.9.7
788 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
789 CA.pl for serial number initialization. With the new release 0.9.8,
790 we can fix the problem directly in the 'ca' utility.)
793 *) Reduced header interdepencies by declaring more opaque objects in
794 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
795 give fewer recursive includes, which could break lazy source code - so
796 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
797 developers should define this symbol when building and using openssl to
798 ensure they track the recommended behaviour, interfaces, [etc], but
799 backwards-compatible behaviour prevails when this isn't defined.
802 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
805 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
806 This will generate a random key of the appropriate length based on the
807 cipher context. The EVP_CIPHER can provide its own random key generation
808 routine to support keys of a specific form. This is used in the des and
809 3des routines to generate a key of the correct parity. Update S/MIME
810 code to use new functions and hence generate correct parity DES keys.
811 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
812 valid (weak or incorrect parity).
815 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
816 as looking them up. This is useful when the verified structure may contain
817 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
818 present unless the new PKCS7_NO_CRL flag is asserted.
821 *) Extend ASN1 oid configuration module. It now additionally accepts the
824 shortName = some long name, 1.2.3.4
827 *) Reimplemented the BN_CTX implementation. There is now no more static
828 limitation on the number of variables it can handle nor the depth of the
829 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
830 information can now expand as required, and rather than having a single
831 static array of bignums, BN_CTX now uses a linked-list of such arrays
832 allowing it to expand on demand whilst maintaining the usefulness of
836 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
837 to allow all RSA operations to function using a single BN_CTX.
840 *) Preliminary support for certificate policy evaluation and checking. This
841 is initially intended to pass the tests outlined in "Conformance Testing
842 of Relying Party Client Certificate Path Processing Logic" v1.07.
845 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
846 remained unused and not that useful. A variety of other little bignum
847 tweaks and fixes have also been made continuing on from the audit (see
851 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
852 associated ASN1, EVP and SSL functions and old ASN1 macros.
855 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
856 and this should never fail. So the return value from the use of
857 BN_set_word() (which can fail due to needless expansion) is now deprecated;
858 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
861 *) BN_CTX_get() should return zero-valued bignums, providing the same
862 initialised value as BN_new().
863 [Geoff Thorpe, suggested by Ulf Möller]
865 *) Support for inhibitAnyPolicy certificate extension.
868 *) An audit of the BIGNUM code is underway, for which debugging code is
869 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
870 is considered valid when processing BIGNUMs, and causes execution to
871 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
872 further steps are taken to deliberately pollute unused data in BIGNUM
873 structures to try and expose faulty code further on. For now, openssl will
874 (in its default mode of operation) continue to tolerate the inconsistent
875 forms that it has tolerated in the past, but authors and packagers should
876 consider trying openssl and their own applications when compiled with
877 these debugging symbols defined. It will help highlight potential bugs in
878 their own code, and will improve the test coverage for OpenSSL itself. At
879 some point, these tighter rules will become openssl's default to improve
880 maintainability, though the assert()s and other overheads will remain only
881 in debugging configurations. See bn.h for more details.
882 [Geoff Thorpe, Nils Larsch, Ulf Möller]
884 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
885 that can only be obtained through BN_CTX_new() (which implicitly
886 initialises it). The presence of this function only made it possible
887 to overwrite an existing structure (and cause memory leaks).
890 *) Because of the callback-based approach for implementing LHASH as a
891 template type, lh_insert() adds opaque objects to hash-tables and
892 lh_doall() or lh_doall_arg() are typically used with a destructor callback
893 to clean up those corresponding objects before destroying the hash table
894 (and losing the object pointers). So some over-zealous constifications in
895 LHASH have been relaxed so that lh_insert() does not take (nor store) the
896 objects as "const" and the lh_doall[_arg] callback wrappers are not
897 prototyped to have "const" restrictions on the object pointers they are
898 given (and so aren't required to cast them away any more).
901 *) The tmdiff.h API was so ugly and minimal that our own timing utility
902 (speed) prefers to use its own implementation. The two implementations
903 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
904 its object type properly exposed (MS_TM) instead of casting to/from "char
905 *". This may still change yet if someone realises MS_TM and "ms_time_***"
906 aren't necessarily the greatest nomenclatures - but this is what was used
907 internally to the implementation so I've used that for now.
910 *) Ensure that deprecated functions do not get compiled when
911 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
912 the self-tests were still using deprecated key-generation functions so
913 these have been updated also.
916 *) Reorganise PKCS#7 code to separate the digest location functionality
917 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
918 New function PKCS7_set_digest() to set the digest type for PKCS#7
919 digestedData type. Add additional code to correctly generate the
920 digestedData type and add support for this type in PKCS7 initialization
924 *) New function PKCS7_set0_type_other() this initializes a PKCS7
925 structure of type "other".
928 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
929 sure the loop does correctly stop and breaking ("division by zero")
930 modulus operations are not performed. The (pre-generated) prime
931 table crypto/bn/bn_prime.h was already correct, but it could not be
932 re-generated on some platforms because of the "division by zero"
933 situation in the script.
934 [Ralf S. Engelschall]
936 *) Update support for ECC-based TLS ciphersuites according to
937 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
938 SHA-1 now is only used for "small" curves (where the
939 representation of a field element takes up to 24 bytes); for
940 larger curves, the field element resulting from ECDH is directly
941 used as premaster secret.
942 [Douglas Stebila (Sun Microsystems Laboratories)]
944 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
945 curve secp160r1 to the tests.
946 [Douglas Stebila (Sun Microsystems Laboratories)]
948 *) Add the possibility to load symbols globally with DSO.
949 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
951 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
952 control of the error stack.
955 *) Add support for STORE in ENGINE.
958 *) Add the STORE type. The intention is to provide a common interface
959 to certificate and key stores, be they simple file-based stores, or
960 HSM-type store, or LDAP stores, or...
961 NOTE: The code is currently UNTESTED and isn't really used anywhere.
964 *) Add a generic structure called OPENSSL_ITEM. This can be used to
965 pass a list of arguments to any function as well as provide a way
966 for a function to pass data back to the caller.
969 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
970 works like BUF_strdup() but can be used to duplicate a portion of
971 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
975 *) Add the function sk_find_ex() which works like sk_find(), but will
976 return an index to an element even if an exact match couldn't be
977 found. The index is guaranteed to point at the element where the
978 searched-for key would be inserted to preserve sorting order.
981 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
982 takes an extra flags argument for optional functionality. Currently,
983 the following flags are defined:
985 OBJ_BSEARCH_VALUE_ON_NOMATCH
986 This one gets OBJ_bsearch_ex() to return a pointer to the first
987 element where the comparing function returns a negative or zero
990 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
991 This one gets OBJ_bsearch_ex() to return a pointer to the first
992 element where the comparing function returns zero. This is useful
993 if there are more than one element where the comparing function
997 *) Make it possible to create self-signed certificates with 'openssl ca'
998 in such a way that the self-signed certificate becomes part of the
999 CA database and uses the same mechanisms for serial number generation
1000 as all other certificate signing. The new flag '-selfsign' enables
1001 this functionality. Adapt CA.sh and CA.pl.in.
1004 *) Add functionality to check the public key of a certificate request
1005 against a given private. This is useful to check that a certificate
1006 request can be signed by that key (self-signing).
1009 *) Make it possible to have multiple active certificates with the same
1010 subject in the CA index file. This is done only if the keyword
1011 'unique_subject' is set to 'no' in the main CA section (default
1012 if 'CA_default') of the configuration file. The value is saved
1013 with the database itself in a separate index attribute file,
1014 named like the index file with '.attr' appended to the name.
1017 *) Generate muti valued AVAs using '+' notation in config files for
1021 *) Support for nameConstraints certificate extension.
1024 *) Support for policyConstraints certificate extension.
1027 *) Support for policyMappings certificate extension.
1030 *) Make sure the default DSA_METHOD implementation only uses its
1031 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1032 and change its own handlers to be NULL so as to remove unnecessary
1033 indirection. This lets alternative implementations fallback to the
1034 default implementation more easily.
1037 *) Support for directoryName in GeneralName related extensions
1041 *) Make it possible to link applications using Makefile.shared.
1042 Make that possible even when linking against static libraries!
1045 *) Support for single pass processing for S/MIME signing. This now
1046 means that S/MIME signing can be done from a pipe, in addition
1047 cleartext signing (multipart/signed type) is effectively streaming
1048 and the signed data does not need to be all held in memory.
1050 This is done with a new flag PKCS7_STREAM. When this flag is set
1051 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1052 is done after the data is output (and digests calculated) in
1053 SMIME_write_PKCS7().
1056 *) Add full support for -rpath/-R, both in shared libraries and
1057 applications, at least on the platforms where it's known how
1061 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1062 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1063 will now compute a table of multiples of the generator that
1064 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1065 faster (notably in the case of a single point multiplication,
1066 scalar * generator).
1067 [Nils Larsch, Bodo Moeller]
1069 *) IPv6 support for certificate extensions. The various extensions
1070 which use the IP:a.b.c.d can now take IPv6 addresses using the
1071 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1075 *) Added an ENGINE that implements RSA by performing private key
1076 exponentiations with the GMP library. The conversions to and from
1077 GMP's mpz_t format aren't optimised nor are any montgomery forms
1078 cached, and on x86 it appears OpenSSL's own performance has caught up.
1079 However there are likely to be other architectures where GMP could
1080 provide a boost. This ENGINE is not built in by default, but it can be
1081 specified at Configure time and should be accompanied by the necessary
1082 linker additions, eg;
1083 ./config -DOPENSSL_USE_GMP -lgmp
1086 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1087 testing availability of engines with "-t" - the old behaviour is
1088 produced by increasing the feature's verbosity with "-tt".
1091 *) ECDSA routines: under certain error conditions uninitialized BN objects
1092 could be freed. Solution: make sure initialization is performed early
1093 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1097 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1098 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1099 software implementations. For DSA and DH, parameter generation can
1100 also be overriden by providing the appropriate method callbacks.
1103 *) Change the "progress" mechanism used in key-generation and
1104 primality testing to functions that take a new BN_GENCB pointer in
1105 place of callback/argument pairs. The new API functions have "_ex"
1106 postfixes and the older functions are reimplemented as wrappers for
1107 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1108 declarations of the old functions to help (graceful) attempts to
1109 migrate to the new functions. Also, the new key-generation API
1110 functions operate on a caller-supplied key-structure and return
1111 success/failure rather than returning a key or NULL - this is to
1112 help make "keygen" another member function of RSA_METHOD etc.
1114 Example for using the new callback interface:
1116 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1120 BN_GENCB_set(&my_cb, my_callback, my_arg);
1122 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1123 /* For the meaning of a, b in calls to my_callback(), see the
1124 * documentation of the function that calls the callback.
1125 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1126 * my_callback should return 1 if it wants BN_is_prime_ex()
1127 * to continue, or 0 to stop.
1132 *) Change the ZLIB compression method to be stateful, and make it
1133 available to TLS with the number defined in
1134 draft-ietf-tls-compression-04.txt.
1137 *) Add the ASN.1 structures and functions for CertificatePair, which
1138 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1140 CertificatePair ::= SEQUENCE {
1141 forward [0] Certificate OPTIONAL,
1142 reverse [1] Certificate OPTIONAL,
1143 -- at least one of the pair shall be present -- }
1145 Also implement the PEM functions to read and write certificate
1146 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1148 This needed to be defined, mostly for the sake of the LDAP
1149 attribute crossCertificatePair, but may prove useful elsewhere as
1153 *) Make it possible to inhibit symlinking of shared libraries in
1154 Makefile.shared, for Cygwin's sake.
1157 *) Extend the BIGNUM API by creating a function
1158 void BN_set_negative(BIGNUM *a, int neg);
1159 and a macro that behave like
1160 int BN_is_negative(const BIGNUM *a);
1162 to avoid the need to access 'a->neg' directly in applications.
1165 *) Implement fast modular reduction for pseudo-Mersenne primes
1166 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1167 EC_GROUP_new_curve_GFp() will now automatically use this
1169 [Nils Larsch <nla@trustcenter.de>]
1171 *) Add new lock type (CRYPTO_LOCK_BN).
1174 *) Change the ENGINE framework to automatically load engines
1175 dynamically from specific directories unless they could be
1176 found to already be built in or loaded. Move all the
1177 current engines except for the cryptodev one to a new
1179 The engines in engines/ are built as shared libraries if
1180 the "shared" options was given to ./Configure or ./config.
1181 Otherwise, they are inserted in libcrypto.a.
1182 /usr/local/ssl/engines is the default directory for dynamic
1183 engines, but that can be overriden at configure time through
1184 the usual use of --prefix and/or --openssldir, and at run
1185 time with the environment variable OPENSSL_ENGINES.
1186 [Geoff Thorpe and Richard Levitte]
1188 *) Add Makefile.shared, a helper makefile to build shared
1189 libraries. Addapt Makefile.org.
1192 *) Add version info to Win32 DLLs.
1193 [Peter 'Luna' Runestig" <peter@runestig.com>]
1195 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1196 can be added using this API to created arbitrary PKCS#12
1197 files while avoiding the low level API.
1199 New options to PKCS12_create(), key or cert can be NULL and
1200 will then be omitted from the output file. The encryption
1201 algorithm NIDs can be set to -1 for no encryption, the mac
1202 iteration count can be set to 0 to omit the mac.
1204 Enhance pkcs12 utility by making the -nokeys and -nocerts
1205 options work when creating a PKCS#12 file. New option -nomac
1206 to omit the mac, NONE can be set for an encryption algorithm.
1207 New code is modified to use the enhanced PKCS12_create()
1208 instead of the low level API.
1211 *) Extend ASN1 encoder to support indefinite length constructed
1212 encoding. This can output sequences tags and octet strings in
1213 this form. Modify pk7_asn1.c to support indefinite length
1214 encoding. This is experimental and needs additional code to
1215 be useful, such as an ASN1 bio and some enhanced streaming
1218 Extend template encode functionality so that tagging is passed
1219 down to the template encoder.
1222 *) Let 'openssl req' fail if an argument to '-newkey' is not
1223 recognized instead of using RSA as a default.
1226 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1227 As these are not official, they are not included in "ALL";
1228 the "ECCdraft" ciphersuite group alias can be used to select them.
1229 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1231 *) Add ECDH engine support.
1232 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1234 *) Add ECDH in new directory crypto/ecdh/.
1235 [Douglas Stebila (Sun Microsystems Laboratories)]
1237 *) Let BN_rand_range() abort with an error after 100 iterations
1238 without success (which indicates a broken PRNG).
1241 *) Change BN_mod_sqrt() so that it verifies that the input value
1242 is really the square of the return value. (Previously,
1243 BN_mod_sqrt would show GIGO behaviour.)
1246 *) Add named elliptic curves over binary fields from X9.62, SECG,
1247 and WAP/WTLS; add OIDs that were still missing.
1249 [Sheueling Chang Shantz and Douglas Stebila
1250 (Sun Microsystems Laboratories)]
1252 *) Extend the EC library for elliptic curves over binary fields
1253 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1256 EC_GF2m_simple_method
1260 EC_GROUP_new_curve_GF2m
1261 EC_GROUP_set_curve_GF2m
1262 EC_GROUP_get_curve_GF2m
1263 EC_POINT_set_affine_coordinates_GF2m
1264 EC_POINT_get_affine_coordinates_GF2m
1265 EC_POINT_set_compressed_coordinates_GF2m
1267 Point compression for binary fields is disabled by default for
1268 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1271 As binary polynomials are represented as BIGNUMs, various members
1272 of the EC_GROUP and EC_POINT data structures can be shared
1273 between the implementations for prime fields and binary fields;
1274 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1275 are essentially identical to their ..._GFp counterparts.
1276 (For simplicity, the '..._GFp' prefix has been dropped from
1277 various internal method names.)
1279 An internal 'field_div' method (similar to 'field_mul' and
1280 'field_sqr') has been added; this is used only for binary fields.
1282 [Sheueling Chang Shantz and Douglas Stebila
1283 (Sun Microsystems Laboratories)]
1285 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1286 through methods ('mul', 'precompute_mult').
1288 The generic implementations (now internally called 'ec_wNAF_mul'
1289 and 'ec_wNAF_precomputed_mult') remain the default if these
1290 methods are undefined.
1292 [Sheueling Chang Shantz and Douglas Stebila
1293 (Sun Microsystems Laboratories)]
1295 *) New function EC_GROUP_get_degree, which is defined through
1296 EC_METHOD. For curves over prime fields, this returns the bit
1297 length of the modulus.
1299 [Sheueling Chang Shantz and Douglas Stebila
1300 (Sun Microsystems Laboratories)]
1302 *) New functions EC_GROUP_dup, EC_POINT_dup.
1303 (These simply call ..._new and ..._copy).
1305 [Sheueling Chang Shantz and Douglas Stebila
1306 (Sun Microsystems Laboratories)]
1308 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1309 Polynomials are represented as BIGNUMs (where the sign bit is not
1310 used) in the following functions [macros]:
1313 BN_GF2m_sub [= BN_GF2m_add]
1314 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1315 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1316 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1318 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1319 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1320 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1321 BN_GF2m_cmp [= BN_ucmp]
1323 (Note that only the 'mod' functions are actually for fields GF(2^m).
1324 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1326 For some functions, an the irreducible polynomial defining a
1327 field can be given as an 'unsigned int[]' with strictly
1328 decreasing elements giving the indices of those bits that are set;
1329 i.e., p[] represents the polynomial
1330 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1332 p[0] > p[1] > ... > p[k] = 0.
1333 This applies to the following functions:
1338 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1339 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1341 BN_GF2m_mod_sqrt_arr
1342 BN_GF2m_mod_solve_quad_arr
1346 Conversion can be performed by the following functions:
1351 bntest.c has additional tests for binary polynomial arithmetic.
1353 Two implementations for BN_GF2m_mod_div() are available.
1354 The default algorithm simply uses BN_GF2m_mod_inv() and
1355 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1356 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1357 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1359 [Sheueling Chang Shantz and Douglas Stebila
1360 (Sun Microsystems Laboratories)]
1362 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1363 functionality is disabled at compile-time.
1364 [Douglas Stebila <douglas.stebila@sun.com>]
1366 *) Change default behaviour of 'openssl asn1parse' so that more
1367 information is visible when viewing, e.g., a certificate:
1369 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1370 mode the content of non-printable OCTET STRINGs is output in a
1371 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1372 avoid the appearance of a printable string.
1373 [Nils Larsch <nla@trustcenter.de>]
1375 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1377 EC_GROUP_set_asn1_flag()
1378 EC_GROUP_get_asn1_flag()
1379 EC_GROUP_set_point_conversion_form()
1380 EC_GROUP_get_point_conversion_form()
1381 These control ASN1 encoding details:
1382 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1383 has been set to OPENSSL_EC_NAMED_CURVE.
1384 - Points are encoded in uncompressed form by default; options for
1385 asn1_for are as for point2oct, namely
1386 POINT_CONVERSION_COMPRESSED
1387 POINT_CONVERSION_UNCOMPRESSED
1388 POINT_CONVERSION_HYBRID
1390 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1393 EC_GROUP_get0_seed()
1394 EC_GROUP_get_seed_len()
1395 This is used only for ASN1 purposes (so far).
1396 [Nils Larsch <nla@trustcenter.de>]
1398 *) Add 'field_type' member to EC_METHOD, which holds the NID
1399 of the appropriate field type OID. The new function
1400 EC_METHOD_get_field_type() returns this value.
1401 [Nils Larsch <nla@trustcenter.de>]
1406 EC_POINT_point2hex()
1407 EC_POINT_hex2point()
1408 providing useful interfaces to EC_POINT_point2oct() and
1409 EC_POINT_oct2point().
1410 [Nils Larsch <nla@trustcenter.de>]
1412 *) Change internals of the EC library so that the functions
1413 EC_GROUP_set_generator()
1414 EC_GROUP_get_generator()
1415 EC_GROUP_get_order()
1416 EC_GROUP_get_cofactor()
1417 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1418 to methods, which would lead to unnecessary code duplication when
1419 adding different types of curves.
1420 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1422 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1423 arithmetic, and such that modified wNAFs are generated
1424 (which avoid length expansion in many cases).
1427 *) Add a function EC_GROUP_check_discriminant() (defined via
1428 EC_METHOD) that verifies that the curve discriminant is non-zero.
1430 Add a function EC_GROUP_check() that makes some sanity tests
1431 on a EC_GROUP, its generator and order. This includes
1432 EC_GROUP_check_discriminant().
1433 [Nils Larsch <nla@trustcenter.de>]
1435 *) Add ECDSA in new directory crypto/ecdsa/.
1437 Add applications 'openssl ecparam' and 'openssl ecdsa'
1438 (these are based on 'openssl dsaparam' and 'openssl dsa').
1440 ECDSA support is also included in various other files across the
1441 library. Most notably,
1442 - 'openssl req' now has a '-newkey ecdsa:file' option;
1443 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1444 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1445 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1446 them suitable for ECDSA where domain parameters must be
1447 extracted before the specific public key;
1448 - ECDSA engine support has been added.
1449 [Nils Larsch <nla@trustcenter.de>]
1451 *) Include some named elliptic curves, and add OIDs from X9.62,
1452 SECG, and WAP/WTLS. Each curve can be obtained from the new
1454 EC_GROUP_new_by_curve_name(),
1455 and the list of available named curves can be obtained with
1456 EC_get_builtin_curves().
1457 Also add a 'curve_name' member to EC_GROUP objects, which can be
1459 EC_GROUP_set_curve_name()
1460 EC_GROUP_get_curve_name()
1461 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1463 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1464 was actually never needed) and in BN_mul(). The removal in BN_mul()
1465 required a small change in bn_mul_part_recursive() and the addition
1466 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1467 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1468 bn_sub_words() and bn_add_words() except they take arrays with
1472 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1474 *) In the SSL/TLS server implementation, be strict about session ID
1475 context matching (which matters if an application uses a single
1476 external cache for different purposes). Previously,
1477 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1478 set. This did ensure strict client verification, but meant that,
1479 with applications using a single external cache for quite
1480 different requirements, clients could circumvent ciphersuite
1481 restrictions for a given session ID context by starting a session
1482 in a different context.
1485 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1487 *) Cleanse PEM buffers before freeing them since they may contain
1489 [Benjamin Bennett <ben@psc.edu>]
1491 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1492 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1493 authentication-only ciphersuites.
1496 *) Since AES128 and AES256 share a single mask bit in the logic of
1497 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1498 kludge to work properly if AES128 is available and AES256 isn't.
1501 *) Expand security boundary to match 1.1.1 module.
1504 *) Remove redundant features: hash file source, editing of test vectors
1505 modify fipsld to use external fips_premain.c signature.
1508 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1509 run algorithm test programs.
1512 *) Make algorithm test programs more tolerant of whitespace.
1515 *) Have SSL/TLS server implementation tolerate "mismatched" record
1516 protocol version while receiving ClientHello even if the
1517 ClientHello is fragmented. (The server can't insist on the
1518 particular protocol version it has chosen before the ServerHello
1519 message has informed the client about his choice.)
1522 *) Load error codes if they are not already present instead of using a
1523 static variable. This allows them to be cleanly unloaded and reloaded.
1526 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1528 *) Introduce limits to prevent malicious keys being able to
1529 cause a denial of service. (CVE-2006-2940)
1530 [Steve Henson, Bodo Moeller]
1532 *) Fix ASN.1 parsing of certain invalid structures that can result
1533 in a denial of service. (CVE-2006-2937) [Steve Henson]
1535 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1536 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1538 *) Fix SSL client code which could crash if connecting to a
1539 malicious SSLv2 server. (CVE-2006-4343)
1540 [Tavis Ormandy and Will Drewry, Google Security Team]
1542 *) Change ciphersuite string processing so that an explicit
1543 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1544 will no longer include "AES128-SHA"), and any other similar
1545 ciphersuite (same bitmap) from *other* protocol versions (so that
1546 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1547 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1548 changes from 0.9.8b and 0.9.8d.
1551 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1553 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1554 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1556 *) Change the Unix randomness entropy gathering to use poll() when
1557 possible instead of select(), since the latter has some
1558 undesirable limitations.
1559 [Darryl Miles via Richard Levitte and Bodo Moeller]
1561 *) Disable rogue ciphersuites:
1563 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1564 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1565 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1567 The latter two were purportedly from
1568 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1571 Also deactive the remaining ciphersuites from
1572 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1573 unofficial, and the ID has long expired.
1576 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1577 dual-core machines) and other potential thread-safety issues.
1580 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1582 *) Adapt fipsld and the build system to link against the validated FIPS
1583 module in FIPS mode.
1586 *) Fixes for VC++ 2005 build under Windows.
1589 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1590 from a Windows bash shell such as MSYS. It is autodetected from the
1591 "config" script when run from a VC++ environment. Modify standard VC++
1592 build to use fipscanister.o from the GNU make build.
1595 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1597 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1598 The value now differs depending on if you build for FIPS or not.
1599 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1600 safely run with a non-FIPSed libcrypto, as it may crash because of
1601 the difference induced by this change.
1604 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1606 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1607 (part of SSL_OP_ALL). This option used to disable the
1608 countermeasure against man-in-the-middle protocol-version
1609 rollback in the SSL 2.0 server implementation, which is a bad
1610 idea. (CVE-2005-2969)
1612 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1613 for Information Security, National Institute of Advanced Industrial
1614 Science and Technology [AIST], Japan)]
1616 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1617 mainly for FIPS compliance and not fully integrated at this stage.
1620 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1621 the exponentiation using a fixed-length exponent. (Otherwise,
1622 the information leaked through timing could expose the secret key
1623 after many signatures; cf. Bleichenbacher's attack on DSA with
1627 *) Make a new fixed-window mod_exp implementation the default for
1628 RSA, DSA, and DH private-key operations so that the sequence of
1629 squares and multiplies and the memory access pattern are
1630 independent of the particular secret key. This will mitigate
1631 cache-timing and potential related attacks.
1633 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1634 and this is automatically used by BN_mod_exp_mont() if the new flag
1635 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1636 will use this BN flag for private exponents unless the flag
1637 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1638 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1640 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1642 *) Change the client implementation for SSLv23_method() and
1643 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1644 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1645 (Previously, the SSL 2.0 backwards compatible Client Hello
1646 message format would be used even with SSL_OP_NO_SSLv2.)
1649 *) Add support for smime-type MIME parameter in S/MIME messages which some
1653 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1654 a threadsafe manner. Modify rsa code to use new function and add calls
1655 to dsa and dh code (which had race conditions before).
1658 *) Include the fixed error library code in the C error file definitions
1659 instead of fixing them up at runtime. This keeps the error code
1660 structures constant.
1663 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1665 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1668 *) Fixes for newer kerberos headers. NB: the casts are needed because
1669 the 'length' field is signed on one version and unsigned on another
1670 with no (?) obvious way to tell the difference, without these VC++
1671 complains. Also the "definition" of FAR (blank) is no longer included
1672 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1673 some needed definitions.
1676 *) Undo Cygwin change.
1679 *) Added support for proxy certificates according to RFC 3820.
1680 Because they may be a security thread to unaware applications,
1681 they must be explicitely allowed in run-time. See
1682 docs/HOWTO/proxy_certificates.txt for further information.
1685 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1687 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1688 server and client random values. Previously
1689 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1690 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1692 This change has negligible security impact because:
1694 1. Server and client random values still have 24 bytes of pseudo random
1697 2. Server and client random values are sent in the clear in the initial
1700 3. The master secret is derived using the premaster secret (48 bytes in
1701 size for static RSA ciphersuites) as well as client server and random
1704 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1707 [Stephen Henson, reported by UK NISCC]
1709 *) Use Windows randomness collection on Cygwin.
1712 *) Fix hang in EGD/PRNGD query when communication socket is closed
1713 prematurely by EGD/PRNGD.
1714 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1716 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1719 *) Back-port of selected performance improvements from development
1720 branch, as well as improved support for PowerPC platforms.
1723 *) Add lots of checks for memory allocation failure, error codes to indicate
1724 failure and freeing up memory if a failure occurs.
1725 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1727 *) Add new -passin argument to dgst.
1730 *) Perform some character comparisons of different types in X509_NAME_cmp:
1731 this is needed for some certificates that reencode DNs into UTF8Strings
1732 (in violation of RFC3280) and can't or wont issue name rollover
1736 *) Make an explicit check during certificate validation to see that
1737 the CA setting in each certificate on the chain is correct. As a
1738 side effect always do the following basic checks on extensions,
1739 not just when there's an associated purpose to the check:
1741 - if there is an unhandled critical extension (unless the user
1742 has chosen to ignore this fault)
1743 - if the path length has been exceeded (if one is set at all)
1744 - that certain extensions fit the associated purpose (if one has
1748 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1750 *) Avoid a race condition when CRLs are checked in a multi threaded
1751 environment. This would happen due to the reordering of the revoked
1752 entries during signature checking and serial number lookup. Now the
1753 encoding is cached and the serial number sort performed under a lock.
1754 Add new STACK function sk_is_sorted().
1757 *) Add Delta CRL to the extension code.
1760 *) Various fixes to s3_pkt.c so alerts are sent properly.
1761 [David Holmes <d.holmes@f5.com>]
1763 *) Reduce the chances of duplicate issuer name and serial numbers (in
1764 violation of RFC3280) using the OpenSSL certificate creation utilities.
1765 This is done by creating a random 64 bit value for the initial serial
1766 number when a serial number file is created or when a self signed
1767 certificate is created using 'openssl req -x509'. The initial serial
1768 number file is created using 'openssl x509 -next_serial' in CA.pl
1769 rather than being initialized to 1.
1772 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1774 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1775 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1776 [Joe Orton, Steve Henson]
1778 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1780 [Joe Orton, Steve Henson]
1782 *) Make it possible to have multiple active certificates with the same
1783 subject in the CA index file. This is done only if the keyword
1784 'unique_subject' is set to 'no' in the main CA section (default
1785 if 'CA_default') of the configuration file. The value is saved
1786 with the database itself in a separate index attribute file,
1787 named like the index file with '.attr' appended to the name.
1790 *) X509 verify fixes. Disable broken certificate workarounds when
1791 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1792 keyUsage extension present. Don't accept CRLs with unhandled critical
1793 extensions: since verify currently doesn't process CRL extensions this
1794 rejects a CRL with *any* critical extensions. Add new verify error codes
1798 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1799 A clarification of RFC2560 will require the use of OCTET STRINGs and
1800 some implementations cannot handle the current raw format. Since OpenSSL
1801 copies and compares OCSP nonces as opaque blobs without any attempt at
1802 parsing them this should not create any compatibility issues.
1805 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1806 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1807 this HMAC (and other) operations are several times slower than OpenSSL
1811 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1812 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1814 *) Use the correct content when signing type "other".
1817 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1819 *) Fix various bugs revealed by running the NISCC test suite:
1821 Stop out of bounds reads in the ASN1 code when presented with
1822 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1824 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1826 If verify callback ignores invalid public key errors don't try to check
1827 certificate signature with the NULL public key.
1831 *) New -ignore_err option in ocsp application to stop the server
1832 exiting on the first error in a request.
1835 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1836 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1840 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1841 extra data after the compression methods not only for TLS 1.0
1842 but also for SSL 3.0 (as required by the specification).
1843 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1845 *) Change X509_certificate_type() to mark the key as exported/exportable
1846 when it's 512 *bits* long, not 512 bytes.
1849 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1850 blocks during encryption.
1853 *) Various fixes to base64 BIO and non blocking I/O. On write
1854 flushes were not handled properly if the BIO retried. On read
1855 data was not being buffered properly and had various logic bugs.
1856 This also affects blocking I/O when the data being decoded is a
1860 *) Various S/MIME bugfixes and compatibility changes:
1861 output correct application/pkcs7 MIME type if
1862 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1863 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1864 of files as .eml work). Correctly handle very long lines in MIME
1868 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1870 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1871 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1872 a protocol version number mismatch like a decryption error
1873 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1876 *) Turn on RSA blinding by default in the default implementation
1877 to avoid a timing attack. Applications that don't want it can call
1878 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1879 They would be ill-advised to do so in most cases.
1880 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1882 *) Change RSA blinding code so that it works when the PRNG is not
1883 seeded (in this case, the secret RSA exponent is abused as
1884 an unpredictable seed -- if it is not unpredictable, there
1885 is no point in blinding anyway). Make RSA blinding thread-safe
1886 by remembering the creator's thread ID in rsa->blinding and
1887 having all other threads use local one-time blinding factors
1888 (this requires more computation than sharing rsa->blinding, but
1889 avoids excessive locking; and if an RSA object is not shared
1890 between threads, blinding will still be very fast).
1893 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1894 ENGINE as defaults for all supported algorithms irrespective of
1895 the 'flags' parameter. 'flags' is now honoured, so applications
1896 should make sure they are passing it correctly.
1899 *) Target "mingw" now allows native Windows code to be generated in
1900 the Cygwin environment as well as with the MinGW compiler.
1903 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1905 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1906 via timing by performing a MAC computation even if incorrrect
1907 block cipher padding has been found. This is a countermeasure
1908 against active attacks where the attacker has to distinguish
1909 between bad padding and a MAC verification error. (CVE-2003-0078)
1911 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1912 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1913 Martin Vuagnoux (EPFL, Ilion)]
1915 *) Make the no-err option work as intended. The intention with no-err
1916 is not to have the whole error stack handling routines removed from
1917 libcrypto, it's only intended to remove all the function name and
1918 reason texts, thereby removing some of the footprint that may not
1919 be interesting if those errors aren't displayed anyway.
1921 NOTE: it's still possible for any application or module to have it's
1922 own set of error texts inserted. The routines are there, just not
1923 used by default when no-err is given.
1926 *) Add support for FreeBSD on IA64.
1927 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1929 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1930 Kerberos function mit_des_cbc_cksum(). Before this change,
1931 the value returned by DES_cbc_cksum() was like the one from
1932 mit_des_cbc_cksum(), except the bytes were swapped.
1933 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1935 *) Allow an application to disable the automatic SSL chain building.
1936 Before this a rather primitive chain build was always performed in
1937 ssl3_output_cert_chain(): an application had no way to send the
1938 correct chain if the automatic operation produced an incorrect result.
1940 Now the chain builder is disabled if either:
1942 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1944 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1946 The reasoning behind this is that an application would not want the
1947 auto chain building to take place if extra chain certificates are
1948 present and it might also want a means of sending no additional
1949 certificates (for example the chain has two certificates and the
1953 *) Add the possibility to build without the ENGINE framework.
1954 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1956 *) Under Win32 gmtime() can return NULL: check return value in
1957 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1960 *) DSA routines: under certain error conditions uninitialized BN objects
1961 could be freed. Solution: make sure initialization is performed early
1962 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1963 Nils Larsch <nla@trustcenter.de> via PR#459)
1966 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1967 checked on reconnect on the client side, therefore session resumption
1968 could still fail with a "ssl session id is different" error. This
1969 behaviour is masked when SSL_OP_ALL is used due to
1970 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1971 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1972 followup to PR #377.
1975 *) IA-32 assembler support enhancements: unified ELF targets, support
1976 for SCO/Caldera platforms, fix for Cygwin shared build.
1979 *) Add support for FreeBSD on sparc64. As a consequence, support for
1980 FreeBSD on non-x86 processors is separate from x86 processors on
1981 the config script, much like the NetBSD support.
1982 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1984 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1986 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1989 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1990 code (06) was taken as the first octet of the session ID and the last
1991 octet was ignored consequently. As a result SSLv2 client side session
1992 caching could not have worked due to the session ID mismatch between
1994 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1998 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1999 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2003 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2004 seems that in spite of existing for more than a year, many application
2005 author have done nothing to provide the necessary callbacks, which
2006 means that this particular engine will not work properly anywhere.
2007 This is a very unfortunate situation which forces us, in the name
2008 of usability, to give the hw_ncipher.c a static lock, which is part
2010 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2011 appear in 0.9.8 or later. We EXPECT application authors to have
2012 dealt properly with this when 0.9.8 is released (unless we actually
2013 make such changes in the libcrypto locking code that changes will
2014 have to be made anyway).
2017 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2018 octets have been read, EOF or an error occurs. Without this change
2019 some truncated ASN1 structures will not produce an error.
2022 *) Disable Heimdal support, since it hasn't been fully implemented.
2023 Still give the possibility to force the use of Heimdal, but with
2024 warnings and a request that patches get sent to openssl-dev.
2027 *) Add the VC-CE target, introduce the WINCE sysname, and add
2028 INSTALL.WCE and appropriate conditionals to make it build.
2029 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2031 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2032 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2033 edit numbers of the version.
2034 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2036 *) Introduce safe string copy and catenation functions
2037 (BUF_strlcpy() and BUF_strlcat()).
2038 [Ben Laurie (CHATS) and Richard Levitte]
2040 *) Avoid using fixed-size buffers for one-line DNs.
2041 [Ben Laurie (CHATS)]
2043 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2044 resizing buffers containing secrets, and use where appropriate.
2045 [Ben Laurie (CHATS)]
2047 *) Avoid using fixed size buffers for configuration file location.
2048 [Ben Laurie (CHATS)]
2050 *) Avoid filename truncation for various CA files.
2051 [Ben Laurie (CHATS)]
2053 *) Use sizeof in preference to magic numbers.
2054 [Ben Laurie (CHATS)]
2056 *) Avoid filename truncation in cert requests.
2057 [Ben Laurie (CHATS)]
2059 *) Add assertions to check for (supposedly impossible) buffer
2061 [Ben Laurie (CHATS)]
2063 *) Don't cache truncated DNS entries in the local cache (this could
2064 potentially lead to a spoofing attack).
2065 [Ben Laurie (CHATS)]
2067 *) Fix various buffers to be large enough for hex/decimal
2068 representations in a platform independent manner.
2069 [Ben Laurie (CHATS)]
2071 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2072 resizing buffers containing secrets, and use where appropriate.
2073 [Ben Laurie (CHATS)]
2075 *) Add BIO_indent() to avoid much slightly worrying code to do
2077 [Ben Laurie (CHATS)]
2079 *) Convert sprintf()/BIO_puts() to BIO_printf().
2080 [Ben Laurie (CHATS)]
2082 *) buffer_gets() could terminate with the buffer only half
2084 [Ben Laurie (CHATS)]
2086 *) Add assertions to prevent user-supplied crypto functions from
2087 overflowing internal buffers by having large block sizes, etc.
2088 [Ben Laurie (CHATS)]
2090 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2092 [Ben Laurie (CHATS)]
2094 *) Eliminate unused copy of key in RC4.
2095 [Ben Laurie (CHATS)]
2097 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2098 [Ben Laurie (CHATS)]
2100 *) Fix off-by-one error in EGD path.
2101 [Ben Laurie (CHATS)]
2103 *) If RANDFILE path is too long, ignore instead of truncating.
2104 [Ben Laurie (CHATS)]
2106 *) Eliminate unused and incorrectly sized X.509 structure
2108 [Ben Laurie (CHATS)]
2110 *) Eliminate unused and dangerous function knumber().
2111 [Ben Laurie (CHATS)]
2113 *) Eliminate unused and dangerous structure, KSSL_ERR.
2114 [Ben Laurie (CHATS)]
2116 *) Protect against overlong session ID context length in an encoded
2117 session object. Since these are local, this does not appear to be
2119 [Ben Laurie (CHATS)]
2121 *) Change from security patch (see 0.9.6e below) that did not affect
2122 the 0.9.6 release series:
2124 Remote buffer overflow in SSL3 protocol - an attacker could
2125 supply an oversized master key in Kerberos-enabled versions.
2127 [Ben Laurie (CHATS)]
2129 *) Change the SSL kerb5 codes to match RFC 2712.
2132 *) Make -nameopt work fully for req and add -reqopt switch.
2133 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2135 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2136 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2138 *) Make sure tests can be performed even if the corresponding algorithms
2139 have been removed entirely. This was also the last step to make
2140 OpenSSL compilable with DJGPP under all reasonable conditions.
2141 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2143 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2144 to allow version independent disabling of normally unselected ciphers,
2145 which may be activated as a side-effect of selecting a single cipher.
2147 (E.g., cipher list string "RSA" enables ciphersuites that are left
2148 out of "ALL" because they do not provide symmetric encryption.
2149 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2150 [Lutz Jaenicke, Bodo Moeller]
2152 *) Add appropriate support for separate platform-dependent build
2153 directories. The recommended way to make a platform-dependent
2154 build directory is the following (tested on Linux), maybe with
2157 # Place yourself outside of the OpenSSL source tree. In
2158 # this example, the environment variable OPENSSL_SOURCE
2159 # is assumed to contain the absolute OpenSSL source directory.
2160 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2161 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2162 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2163 mkdir -p `dirname $F`
2164 ln -s $OPENSSL_SOURCE/$F $F
2167 To be absolutely sure not to disturb the source tree, a "make clean"
2168 is a good thing. If it isn't successfull, don't worry about it,
2169 it probably means the source directory is very clean.
2172 *) Make sure any ENGINE control commands make local copies of string
2173 pointers passed to them whenever necessary. Otherwise it is possible
2174 the caller may have overwritten (or deallocated) the original string
2175 data when a later ENGINE operation tries to use the stored values.
2176 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2178 *) Improve diagnostics in file reading and command-line digests.
2179 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2181 *) Add AES modes CFB and OFB to the object database. Correct an
2182 error in AES-CFB decryption.
2185 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2186 allows existing EVP_CIPHER_CTX structures to be reused after
2187 calling EVP_*Final(). This behaviour is used by encryption
2188 BIOs and some applications. This has the side effect that
2189 applications must explicitly clean up cipher contexts with
2190 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2193 *) Check the values of dna and dnb in bn_mul_recursive before calling
2194 bn_mul_comba (a non zero value means the a or b arrays do not contain
2195 n2 elements) and fallback to bn_mul_normal if either is not zero.
2198 *) Fix escaping of non-ASCII characters when using the -subj option
2199 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2202 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2203 form for "surname", serialNumber has no short form.
2204 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2205 therefore remove "mail" short name for "internet 7".
2206 The OID for unique identifiers in X509 certificates is
2207 x500UniqueIdentifier, not uniqueIdentifier.
2208 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2211 *) Add an "init" command to the ENGINE config module and auto initialize
2212 ENGINEs. Without any "init" command the ENGINE will be initialized
2213 after all ctrl commands have been executed on it. If init=1 the
2214 ENGINE is initailized at that point (ctrls before that point are run
2215 on the uninitialized ENGINE and after on the initialized one). If
2216 init=0 then the ENGINE will not be iniatialized at all.
2219 *) Fix the 'app_verify_callback' interface so that the user-defined
2220 argument is actually passed to the callback: In the
2221 SSL_CTX_set_cert_verify_callback() prototype, the callback
2222 declaration has been changed from
2225 int (*cb)(X509_STORE_CTX *,void *);
2226 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2227 i=s->ctx->app_verify_callback(&ctx)
2228 has been changed into
2229 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2231 To update applications using SSL_CTX_set_cert_verify_callback(),
2232 a dummy argument can be added to their callback functions.
2233 [D. K. Smetters <smetters@parc.xerox.com>]
2235 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2236 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2238 *) Add and OPENSSL_LOAD_CONF define which will cause
2239 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2240 This allows older applications to transparently support certain
2241 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2242 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2243 load the config file and OPENSSL_add_all_algorithms_conf() which will
2244 always load it have also been added.
2247 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2248 Adjust NIDs and EVP layer.
2249 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2251 *) Config modules support in openssl utility.
2253 Most commands now load modules from the config file,
2254 though in a few (such as version) this isn't done
2255 because it couldn't be used for anything.
2257 In the case of ca and req the config file used is
2258 the same as the utility itself: that is the -config
2259 command line option can be used to specify an
2263 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2264 use "openssl_conf" if filename is NULL use default openssl config file.
2267 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2268 config section name. Add a new flag to tolerate a missing config file
2269 and move code to CONF_modules_load_file().
2272 *) Support for crypto accelerator cards from Accelerated Encryption
2273 Processing, www.aep.ie. (Use engine 'aep')
2274 The support was copied from 0.9.6c [engine] and adapted/corrected
2275 to work with the new engine framework.
2276 [AEP Inc. and Richard Levitte]
2278 *) Support for SureWare crypto accelerator cards from Baltimore
2279 Technologies. (Use engine 'sureware')
2280 The support was copied from 0.9.6c [engine] and adapted
2281 to work with the new engine framework.
2284 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2285 make the newer ENGINE framework commands for the CHIL engine work.
2286 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2288 *) Make it possible to produce shared libraries on ReliantUNIX.
2289 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2291 *) Add the configuration target debug-linux-ppro.
2292 Make 'openssl rsa' use the general key loading routines
2293 implemented in apps.c, and make those routines able to
2294 handle the key format FORMAT_NETSCAPE and the variant
2296 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2298 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2299 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2301 *) Add -keyform to rsautl, and document -engine.
2302 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2304 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2305 BIO_R_NO_SUCH_FILE error code rather than the generic
2306 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2309 *) Add new functions
2311 ERR_peek_last_error_line
2312 ERR_peek_last_error_line_data.
2313 These are similar to
2316 ERR_peek_error_line_data,
2317 but report on the latest error recorded rather than the first one
2318 still in the error queue.
2319 [Ben Laurie, Bodo Moeller]
2321 *) default_algorithms option in ENGINE config module. This allows things
2323 default_algorithms = ALL
2324 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2327 *) Prelminary ENGINE config module.
2330 *) New experimental application configuration code.
2333 *) Change the AES code to follow the same name structure as all other
2334 symmetric ciphers, and behave the same way. Move everything to
2335 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2336 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2338 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2339 [Ben Laurie and Theo de Raadt]
2341 *) Add option to output public keys in req command.
2342 [Massimiliano Pala madwolf@openca.org]
2344 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2345 (up to about 10% better than before for P-192 and P-224).
2348 *) New functions/macros
2350 SSL_CTX_set_msg_callback(ctx, cb)
2351 SSL_CTX_set_msg_callback_arg(ctx, arg)
2352 SSL_set_msg_callback(ssl, cb)
2353 SSL_set_msg_callback_arg(ssl, arg)
2355 to request calling a callback function
2357 void cb(int write_p, int version, int content_type,
2358 const void *buf, size_t len, SSL *ssl, void *arg)
2360 whenever a protocol message has been completely received
2361 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2362 protocol version according to which the SSL library interprets
2363 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2364 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2365 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2366 specification (change_cipher_spec(20), alert(21), handshake(22)).
2367 'buf' and 'len' point to the actual message, 'ssl' to the
2368 SSL object, and 'arg' is the application-defined value set by
2369 SSL[_CTX]_set_msg_callback_arg().
2371 'openssl s_client' and 'openssl s_server' have new '-msg' options
2372 to enable a callback that displays all protocol messages.
2375 *) Change the shared library support so shared libraries are built as
2376 soon as the corresponding static library is finished, and thereby get
2377 openssl and the test programs linked against the shared library.
2378 This still only happens when the keyword "shard" has been given to
2379 the configuration scripts.
2381 NOTE: shared library support is still an experimental thing, and
2382 backward binary compatibility is still not guaranteed.
2383 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2385 *) Add support for Subject Information Access extension.
2386 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2388 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2389 additional bytes when new memory had to be allocated, not just
2390 when reusing an existing buffer.
2393 *) New command line and configuration option 'utf8' for the req command.
2394 This allows field values to be specified as UTF8 strings.
2397 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2398 runs for the former and machine-readable output for the latter.
2401 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2402 of the e-mail address in the DN (i.e., it will go into a certificate
2403 extension only). The new configuration file option 'email_in_dn = no'
2404 has the same effect.
2405 [Massimiliano Pala madwolf@openca.org]
2407 *) Change all functions with names starting with des_ to be starting
2408 with DES_ instead. Add wrappers that are compatible with libdes,
2409 but are named _ossl_old_des_*. Finally, add macros that map the
2410 des_* symbols to the corresponding _ossl_old_des_* if libdes
2411 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2412 desired, the des_* symbols will be mapped to DES_*, with one
2415 Since we provide two compatibility mappings, the user needs to
2416 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2417 compatibility is desired. The default (i.e., when that macro
2418 isn't defined) is OpenSSL 0.9.6c compatibility.
2420 There are also macros that enable and disable the support of old
2421 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2422 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2423 are defined, the default will apply: to support the old des routines.
2425 In either case, one must include openssl/des.h to get the correct
2426 definitions. Do not try to just include openssl/des_old.h, that
2429 NOTE: This is a major break of an old API into a new one. Software
2430 authors are encouraged to switch to the DES_ style functions. Some
2431 time in the future, des_old.h and the libdes compatibility functions
2432 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2433 default), and then completely removed.
2436 *) Test for certificates which contain unsupported critical extensions.
2437 If such a certificate is found during a verify operation it is
2438 rejected by default: this behaviour can be overridden by either
2439 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2440 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2441 X509_supported_extension() has also been added which returns 1 if a
2442 particular extension is supported.
2445 *) Modify the behaviour of EVP cipher functions in similar way to digests
2446 to retain compatibility with existing code.
2449 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2450 compatibility with existing code. In particular the 'ctx' parameter does
2451 not have to be to be initialized before the call to EVP_DigestInit() and
2452 it is tidied up after a call to EVP_DigestFinal(). New function
2453 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2454 EVP_MD_CTX_copy() changed to not require the destination to be
2455 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2456 requires the destination to be valid.
2458 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2459 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2462 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2463 so that complete 'Handshake' protocol structures are kept in memory
2464 instead of overwriting 'msg_type' and 'length' with 'body' data.
2467 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2468 [Massimo Santin via Richard Levitte]
2470 *) Major restructuring to the underlying ENGINE code. This includes
2471 reduction of linker bloat, separation of pure "ENGINE" manipulation
2472 (initialisation, etc) from functionality dealing with implementations
2473 of specific crypto iterfaces. This change also introduces integrated
2474 support for symmetric ciphers and digest implementations - so ENGINEs
2475 can now accelerate these by providing EVP_CIPHER and EVP_MD
2476 implementations of their own. This is detailed in crypto/engine/README
2477 as it couldn't be adequately described here. However, there are a few
2478 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2479 were changed in the original introduction of ENGINE code have now
2480 reverted back - the hooking from this code to ENGINE is now a good
2481 deal more passive and at run-time, operations deal directly with
2482 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2483 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2484 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2485 they were not being used by the framework as there is no concept of a
2486 BIGNUM_METHOD and they could not be generalised to the new
2487 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2488 ENGINE_cpy() has been removed as it cannot be consistently defined in
2492 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2495 *) Change mkdef.pl to sort symbols that get the same entry number,
2496 and make sure the automatically generated functions ERR_load_*
2497 become part of libeay.num as well.
2500 *) New function SSL_renegotiate_pending(). This returns true once
2501 renegotiation has been requested (either SSL_renegotiate() call
2502 or HelloRequest/ClientHello receveived from the peer) and becomes
2503 false once a handshake has been completed.
2504 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2505 sends a HelloRequest, but does not ensure that a handshake takes
2506 place. SSL_renegotiate_pending() is useful for checking if the
2507 client has followed the request.)
2510 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2511 By default, clients may request session resumption even during
2512 renegotiation (if session ID contexts permit); with this option,
2513 session resumption is possible only in the first handshake.
2515 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2516 more bits available for options that should not be part of
2517 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2520 *) Add some demos for certificate and certificate request creation.
2523 *) Make maximum certificate chain size accepted from the peer application
2524 settable (SSL*_get/set_max_cert_list()), as proposed by
2525 "Douglas E. Engert" <deengert@anl.gov>.
2528 *) Add support for shared libraries for Unixware-7
2529 (Boyd Lynn Gerber <gerberb@zenez.com>).
2532 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2533 be done prior to destruction. Use this to unload error strings from
2534 ENGINEs that load their own error strings. NB: This adds two new API
2535 functions to "get" and "set" this destroy handler in an ENGINE.
2538 *) Alter all existing ENGINE implementations (except "openssl" and
2539 "openbsd") to dynamically instantiate their own error strings. This
2540 makes them more flexible to be built both as statically-linked ENGINEs
2541 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2542 Also, add stub code to each that makes building them as self-contained
2543 shared-libraries easier (see README.ENGINE).
2546 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2547 implementations into applications that are completely implemented in
2548 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2549 commands that can be used to configure what shared-library to load and
2550 to control aspects of the way it is handled. Also, made an update to
2551 the README.ENGINE file that brings its information up-to-date and
2552 provides some information and instructions on the "dynamic" ENGINE
2553 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2556 *) Make it possible to unload ranges of ERR strings with a new
2557 "ERR_unload_strings" function.
2560 *) Add a copy() function to EVP_MD.
2563 *) Make EVP_MD routines take a context pointer instead of just the
2564 md_data void pointer.
2567 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2568 that the digest can only process a single chunk of data
2569 (typically because it is provided by a piece of
2570 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2571 is only going to provide a single chunk of data, and hence the
2572 framework needn't accumulate the data for oneshot drivers.
2575 *) As with "ERR", make it possible to replace the underlying "ex_data"
2576 functions. This change also alters the storage and management of global
2577 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2578 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2579 index counters. The API functions that use this state have been changed
2580 to take a "class_index" rather than pointers to the class's local STACK
2581 and counter, and there is now an API function to dynamically create new
2582 classes. This centralisation allows us to (a) plug a lot of the
2583 thread-safety problems that existed, and (b) makes it possible to clean
2584 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2585 such data would previously have always leaked in application code and
2586 workarounds were in place to make the memory debugging turn a blind eye
2587 to it. Application code that doesn't use this new function will still
2588 leak as before, but their memory debugging output will announce it now
2589 rather than letting it slide.
2591 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2592 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2593 has a return value to indicate success or failure.
2596 *) Make it possible to replace the underlying "ERR" functions such that the
2597 global state (2 LHASH tables and 2 locks) is only used by the "default"
2598 implementation. This change also adds two functions to "get" and "set"
2599 the implementation prior to it being automatically set the first time
2600 any other ERR function takes place. Ie. an application can call "get",
2601 pass the return value to a module it has just loaded, and that module
2602 can call its own "set" function using that value. This means the
2603 module's "ERR" operations will use (and modify) the error state in the
2604 application and not in its own statically linked copy of OpenSSL code.
2607 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2608 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2609 the operation, and provides a more encapsulated way for external code
2610 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2611 to use these functions rather than manually incrementing the counts.
2613 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2616 *) Add EVP test program.
2619 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2622 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2623 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2624 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2625 These allow a CRL to be built without having to access X509_CRL fields
2626 directly. Modify 'ca' application to use new functions.
2629 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2630 bug workarounds. Rollback attack detection is a security feature.
2631 The problem will only arise on OpenSSL servers when TLSv1 is not
2632 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2633 Software authors not wanting to support TLSv1 will have special reasons
2634 for their choice and can explicitly enable this option.
2635 [Bodo Moeller, Lutz Jaenicke]
2637 *) Rationalise EVP so it can be extended: don't include a union of
2638 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2639 (similar to those existing for EVP_CIPHER_CTX).
2644 EVP_MD_CTX_init(&md); /* new function call */
2645 EVP_DigestInit(&md, EVP_sha1());
2646 EVP_DigestUpdate(&md, in, len);
2647 EVP_DigestFinal(&md, out, NULL);
2648 EVP_MD_CTX_cleanup(&md); /* new function call */
2652 *) Make DES key schedule conform to the usual scheme, as well as
2653 correcting its structure. This means that calls to DES functions
2654 now have to pass a pointer to a des_key_schedule instead of a
2655 plain des_key_schedule (which was actually always a pointer
2658 des_key_schedule ks;
2660 des_set_key_checked(..., &ks);
2661 des_ncbc_encrypt(..., &ks, ...);
2663 (Note that a later change renames 'des_...' into 'DES_...'.)
2666 *) Initial reduction of linker bloat: the use of some functions, such as
2667 PEM causes large amounts of unused functions to be linked in due to
2668 poor organisation. For example pem_all.c contains every PEM function
2669 which has a knock on effect of linking in large amounts of (unused)
2670 ASN1 code. Grouping together similar functions and splitting unrelated
2671 functions prevents this.
2674 *) Cleanup of EVP macros.
2677 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2678 correct _ecb suffix.
2681 *) Add initial OCSP responder support to ocsp application. The
2682 revocation information is handled using the text based index
2683 use by the ca application. The responder can either handle
2684 requests generated internally, supplied in files (for example
2685 via a CGI script) or using an internal minimal server.
2688 *) Add configuration choices to get zlib compression for TLS.
2691 *) Changes to Kerberos SSL for RFC 2712 compliance:
2692 1. Implemented real KerberosWrapper, instead of just using
2693 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2694 2. Implemented optional authenticator field of KerberosWrapper.
2696 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2697 and authenticator structs; see crypto/krb5/.
2699 Generalized Kerberos calls to support multiple Kerberos libraries.
2700 [Vern Staats <staatsvr@asc.hpc.mil>,
2701 Jeffrey Altman <jaltman@columbia.edu>
2702 via Richard Levitte]
2704 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2705 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2706 values for each of the key sizes rather than having just
2707 parameters (and 'speed' generating keys each time).
2710 *) Speed up EVP routines.
2713 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2714 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2715 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2716 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2718 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2719 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2720 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2723 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2725 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2728 *) Added the OS2-EMX target.
2729 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2731 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2732 to support NCONF routines in extension code. New function CONF_set_nconf()
2733 to allow functions which take an NCONF to also handle the old LHASH
2734 structure: this means that the old CONF compatible routines can be
2735 retained (in particular wrt extensions) without having to duplicate the
2736 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2739 *) Enhance the general user interface with mechanisms for inner control
2740 and with possibilities to have yes/no kind of prompts.
2743 *) Change all calls to low level digest routines in the library and
2744 applications to use EVP. Add missing calls to HMAC_cleanup() and
2745 don't assume HMAC_CTX can be copied using memcpy().
2746 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2748 *) Add the possibility to control engines through control names but with
2749 arbitrary arguments instead of just a string.
2750 Change the key loaders to take a UI_METHOD instead of a callback
2751 function pointer. NOTE: this breaks binary compatibility with earlier
2752 versions of OpenSSL [engine].
2753 Adapt the nCipher code for these new conditions and add a card insertion
2757 *) Enhance the general user interface with mechanisms to better support
2758 dialog box interfaces, application-defined prompts, the possibility
2759 to use defaults (for example default passwords from somewhere else)
2760 and interrupts/cancellations.
2763 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2764 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2767 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2768 tidy up some unnecessarily weird code in 'sk_new()').
2769 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2771 *) Change the key loading routines for ENGINEs to use the same kind
2772 callback (pem_password_cb) as all other routines that need this
2776 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2777 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2778 than this minimum value is recommended.
2781 *) New random seeder for OpenVMS, using the system process statistics
2782 that are easily reachable.
2785 *) Windows apparently can't transparently handle global
2786 variables defined in DLLs. Initialisations such as:
2788 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2790 wont compile. This is used by the any applications that need to
2791 declare their own ASN1 modules. This was fixed by adding the option
2792 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2793 needed for static libraries under Win32.
2796 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2797 setting of purpose and trust fields. New X509_STORE trust and
2798 purpose functions and tidy up setting in other SSL functions.
2801 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2802 structure. These are inherited by X509_STORE_CTX when it is
2803 initialised. This allows various defaults to be set in the
2804 X509_STORE structure (such as flags for CRL checking and custom
2805 purpose or trust settings) for functions which only use X509_STORE_CTX
2806 internally such as S/MIME.
2808 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2809 trust settings if they are not set in X509_STORE. This allows X509_STORE
2810 purposes and trust (in S/MIME for example) to override any set by default.
2812 Add command line options for CRL checking to smime, s_client and s_server
2816 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2817 are set then the CRL is looked up in the X509_STORE structure and
2818 its validity and signature checked, then if the certificate is found
2819 in the CRL the verify fails with a revoked error.
2821 Various new CRL related callbacks added to X509_STORE_CTX structure.
2823 Command line options added to 'verify' application to support this.
2825 This needs some additional work, such as being able to handle multiple
2826 CRLs with different times, extension based lookup (rather than just
2827 by subject name) and ultimately more complete V2 CRL extension
2831 *) Add a general user interface API (crypto/ui/). This is designed
2832 to replace things like des_read_password and friends (backward
2833 compatibility functions using this new API are provided).
2834 The purpose is to remove prompting functions from the DES code
2835 section as well as provide for prompting through dialog boxes in
2836 a window system and the like.
2839 *) Add "ex_data" support to ENGINE so implementations can add state at a
2840 per-structure level rather than having to store it globally.
2843 *) Make it possible for ENGINE structures to be copied when retrieved by
2844 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2845 This causes the "original" ENGINE structure to act like a template,
2846 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2847 operational state can be localised to each ENGINE structure, despite the
2848 fact they all share the same "methods". New ENGINE structures returned in
2849 this case have no functional references and the return value is the single
2850 structural reference. This matches the single structural reference returned
2851 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2855 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2856 needs to match any other type at all we need to manually clear the
2860 *) Changes to the "openssl engine" utility to include;
2861 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2862 about an ENGINE's available control commands.
2863 - executing control commands from command line arguments using the
2864 '-pre' and '-post' switches. '-post' is only used if '-t' is
2865 specified and the ENGINE is successfully initialised. The syntax for
2866 the individual commands are colon-separated, for example;
2867 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2870 *) New dynamic control command support for ENGINEs. ENGINEs can now
2871 declare their own commands (numbers), names (strings), descriptions,
2872 and input types for run-time discovery by calling applications. A
2873 subset of these commands are implicitly classed as "executable"
2874 depending on their input type, and only these can be invoked through
2875 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2876 can be based on user input, config files, etc). The distinction is
2877 that "executable" commands cannot return anything other than a boolean
2878 result and can only support numeric or string input, whereas some
2879 discoverable commands may only be for direct use through
2880 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2881 pointers, or other custom uses. The "executable" commands are to
2882 support parameterisations of ENGINE behaviour that can be
2883 unambiguously defined by ENGINEs and used consistently across any
2884 OpenSSL-based application. Commands have been added to all the
2885 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2886 control over shared-library paths without source code alterations.
2889 *) Changed all ENGINE implementations to dynamically allocate their
2890 ENGINEs rather than declaring them statically. Apart from this being
2891 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2892 this also allows the implementations to compile without using the
2893 internal engine_int.h header.
2896 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2897 'const' value. Any code that should be able to modify a RAND_METHOD
2898 should already have non-const pointers to it (ie. they should only
2899 modify their own ones).
2902 *) Made a variety of little tweaks to the ENGINE code.
2903 - "atalla" and "ubsec" string definitions were moved from header files
2904 to C code. "nuron" string definitions were placed in variables
2905 rather than hard-coded - allowing parameterisation of these values
2906 later on via ctrl() commands.
2907 - Removed unused "#if 0"'d code.
2908 - Fixed engine list iteration code so it uses ENGINE_free() to release
2909 structural references.
2910 - Constified the RAND_METHOD element of ENGINE structures.
2911 - Constified various get/set functions as appropriate and added
2912 missing functions (including a catch-all ENGINE_cpy that duplicates
2913 all ENGINE values onto a new ENGINE except reference counts/state).
2914 - Removed NULL parameter checks in get/set functions. Setting a method
2915 or function to NULL is a way of cancelling out a previously set
2916 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2917 and doesn't justify the extra error symbols and code.
2918 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2919 flags from engine_int.h to engine.h.
2920 - Changed prototypes for ENGINE handler functions (init(), finish(),
2921 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2924 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2925 to the algorithm using long division. The binary algorithm can be
2926 used only if the modulus is odd. On 32-bit systems, it is faster
2927 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2928 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2929 up to 450 bits. In 64-bit environments, the binary algorithm
2930 appears to be advantageous for much longer moduli; here we use it
2931 for moduli up to 2048 bits.
2934 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2935 could not support the combine flag in choice fields.
2938 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2939 extensions from a certificate request to the certificate.
2942 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2943 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2944 file: this allows the display of the certificate about to be
2945 signed to be customised, to allow certain fields to be included
2946 or excluded and extension details. The old system didn't display
2947 multicharacter strings properly, omitted fields not in the policy
2948 and couldn't display additional details such as extensions.
2951 *) Function EC_POINTs_mul for multiple scalar multiplication
2952 of an arbitrary number of elliptic curve points
2953 \sum scalars[i]*points[i],
2954 optionally including the generator defined for the EC_GROUP:
2955 scalar*generator + \sum scalars[i]*points[i].
2957 EC_POINT_mul is a simple wrapper function for the typical case
2958 that the point list has just one item (besides the optional
2962 *) First EC_METHODs for curves over GF(p):
2964 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2965 operations and provides various method functions that can also
2966 operate with faster implementations of modular arithmetic.
2968 EC_GFp_mont_method() reuses most functions that are part of
2969 EC_GFp_simple_method, but uses Montgomery arithmetic.
2971 [Bodo Moeller; point addition and point doubling
2972 implementation directly derived from source code provided by
2973 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2975 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2976 crypto/ec/ec_lib.c):
2978 Curves are EC_GROUP objects (with an optional group generator)
2979 based on EC_METHODs that are built into the library.
2981 Points are EC_POINT objects based on EC_GROUP objects.
2983 Most of the framework would be able to handle curves over arbitrary
2984 finite fields, but as there are no obvious types for fields other
2985 than GF(p), some functions are limited to that for now.
2988 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2989 that the file contains a complete HTTP response.
2992 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2993 change the def and num file printf format specifier from "%-40sXXX"
2994 to "%-39s XXX". The latter will always guarantee a space after the
2995 field while the former will cause them to run together if the field
2996 is 40 of more characters long.
2999 *) Constify the cipher and digest 'method' functions and structures
3000 and modify related functions to take constant EVP_MD and EVP_CIPHER
3004 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3005 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3008 *) Modify EVP_Digest*() routines so they now return values. Although the
3009 internal software routines can never fail additional hardware versions
3013 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3015 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3016 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3019 ERR_R_NESTED_ASN1_ERROR
3021 ERR_R_MISSING_ASN1_EOS
3022 were 4 .. 9, conflicting with
3023 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3025 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3026 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3028 Add new error code 'ERR_R_INTERNAL_ERROR'.
3031 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3035 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3036 sets the subject name for a new request or supersedes the
3037 subject name in a given request. Formats that can be parsed are
3038 'CN=Some Name, OU=myOU, C=IT'
3040 'CN=Some Name/OU=myOU/C=IT'.
3042 Add options '-batch' and '-verbose' to 'openssl req'.
3043 [Massimiliano Pala <madwolf@hackmasters.net>]
3045 *) Introduce the possibility to access global variables through
3046 functions on platform were that's the best way to handle exporting
3047 global variables in shared libraries. To enable this functionality,
3048 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3049 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3050 is normally done by Configure or something similar).
3052 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3053 in the source file (foo.c) like this:
3055 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3056 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3058 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3059 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3061 OPENSSL_DECLARE_GLOBAL(int,foo);
3062 #define foo OPENSSL_GLOBAL_REF(foo)
3063 OPENSSL_DECLARE_GLOBAL(double,bar);
3064 #define bar OPENSSL_GLOBAL_REF(bar)
3066 The #defines are very important, and therefore so is including the
3067 header file everywhere where the defined globals are used.
3069 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3070 of ASN.1 items, but that structure is a bit different.
3072 The largest change is in util/mkdef.pl which has been enhanced with
3073 better and easier to understand logic to choose which symbols should
3074 go into the Windows .def files as well as a number of fixes and code
3075 cleanup (among others, algorithm keywords are now sorted
3076 lexicographically to avoid constant rewrites).
3079 *) In BN_div() keep a copy of the sign of 'num' before writing the
3080 result to 'rm' because if rm==num the value will be overwritten
3081 and produce the wrong result if 'num' is negative: this caused
3082 problems with BN_mod() and BN_nnmod().
3085 *) Function OCSP_request_verify(). This checks the signature on an
3086 OCSP request and verifies the signer certificate. The signer
3087 certificate is just checked for a generic purpose and OCSP request
3091 *) Add OCSP_check_validity() function to check the validity of OCSP
3092 responses. OCSP responses are prepared in real time and may only
3093 be a few seconds old. Simply checking that the current time lies
3094 between thisUpdate and nextUpdate max reject otherwise valid responses
3095 caused by either OCSP responder or client clock inaccuracy. Instead
3096 we allow thisUpdate and nextUpdate to fall within a certain period of
3097 the current time. The age of the response can also optionally be
3098 checked. Two new options -validity_period and -status_age added to
3102 *) If signature or public key algorithm is unrecognized print out its
3103 OID rather that just UNKNOWN.
3106 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3107 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3108 ID to be generated from the issuer certificate alone which can then be
3109 passed to OCSP_id_issuer_cmp().
3112 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3113 ASN1 modules to export functions returning ASN1_ITEM pointers
3114 instead of the ASN1_ITEM structures themselves. This adds several
3115 new macros which allow the underlying ASN1 function/structure to
3116 be accessed transparently. As a result code should not use ASN1_ITEM
3117 references directly (such as &X509_it) but instead use the relevant
3118 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3119 use of the new ASN1 code on platforms where exporting structures
3120 is problematical (for example in shared libraries) but exporting
3121 functions returning pointers to structures is not.
3124 *) Add support for overriding the generation of SSL/TLS session IDs.
3125 These callbacks can be registered either in an SSL_CTX or per SSL.
3126 The purpose of this is to allow applications to control, if they wish,
3127 the arbitrary values chosen for use as session IDs, particularly as it
3128 can be useful for session caching in multiple-server environments. A
3129 command-line switch for testing this (and any client code that wishes
3130 to use such a feature) has been added to "s_server".
3131 [Geoff Thorpe, Lutz Jaenicke]
3133 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3134 of the form '#if defined(...) || defined(...) || ...' and
3135 '#if !defined(...) && !defined(...) && ...'. This also avoids
3136 the growing number of special cases it was previously handling.
3139 *) Make all configuration macros available for application by making
3140 sure they are available in opensslconf.h, by giving them names starting
3141 with "OPENSSL_" to avoid conflicts with other packages and by making
3142 sure e_os2.h will cover all platform-specific cases together with
3144 Additionally, it is now possible to define configuration/platform-
3145 specific names (called "system identities"). In the C code, these
3146 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3147 macro with the name beginning with "OPENSSL_SYS_", which is determined
3148 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3152 *) New option -set_serial to 'req' and 'x509' this allows the serial
3153 number to use to be specified on the command line. Previously self
3154 signed certificates were hard coded with serial number 0 and the
3155 CA options of 'x509' had to use a serial number in a file which was
3159 *) New options to 'ca' utility to support V2 CRL entry extensions.
3160 Currently CRL reason, invalidity date and hold instruction are
3161 supported. Add new CRL extensions to V3 code and some new objects.
3164 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3165 disable standard block padding (aka PKCS#5 padding) in the EVP
3166 API, which was previously mandatory. This means that the data is
3167 not padded in any way and so the total length much be a multiple
3168 of the block size, otherwise an error occurs.
3171 *) Initial (incomplete) OCSP SSL support.
3174 *) New function OCSP_parse_url(). This splits up a URL into its host,
3175 port and path components: primarily to parse OCSP URLs. New -url
3176 option to ocsp utility.
3179 *) New nonce behavior. The return value of OCSP_check_nonce() now
3180 reflects the various checks performed. Applications can decide
3181 whether to tolerate certain situations such as an absent nonce
3182 in a response when one was present in a request: the ocsp application
3183 just prints out a warning. New function OCSP_add1_basic_nonce()
3184 this is to allow responders to include a nonce in a response even if
3185 the request is nonce-less.
3188 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3189 skipped when using openssl x509 multiple times on a single input file,
3190 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3193 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3194 set string type: to handle setting ASN1_TIME structures. Fix ca
3195 utility to correctly initialize revocation date of CRLs.
3198 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3199 the clients preferred ciphersuites and rather use its own preferences.
3200 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3201 Internet Explorer by ensuring unchanged hash method during stepup.
3202 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3205 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3206 to aes and add a new 'exist' option to print out symbols that don't
3210 *) Additional options to ocsp utility to allow flags to be set and
3211 additional certificates supplied.
3214 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3215 OCSP client a number of certificate to only verify the response
3219 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3220 handle the new API. Currently only ECB, CBC modes supported. Add new
3223 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3224 Encryption Standard (AES) Ciphersuites for Transport Layer
3225 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3226 not enabled by default and were not part of the "ALL" ciphersuite
3227 alias because they were not yet official; they could be
3228 explicitly requested by specifying the "AESdraft" ciphersuite
3229 group alias. In the final release of OpenSSL 0.9.7, the group
3230 alias is called "AES" and is part of "ALL".)
3231 [Ben Laurie, Steve Henson, Bodo Moeller]
3233 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3234 request to response.
3237 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3238 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3239 extract information from a certificate request. OCSP_response_create()
3240 creates a response and optionally adds a basic response structure.
3241 OCSP_basic_add1_status() adds a complete single response to a basic
3242 response and returns the OCSP_SINGLERESP structure just added (to allow
3243 extensions to be included for example). OCSP_basic_add1_cert() adds a
3244 certificate to a basic response and OCSP_basic_sign() signs a basic
3245 response with various flags. New helper functions ASN1_TIME_check()
3246 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3247 (converts ASN1_TIME to GeneralizedTime).
3250 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3251 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3252 structure from a certificate. X509_pubkey_digest() digests the public_key
3253 contents: this is used in various key identifiers.
3256 *) Make sk_sort() tolerate a NULL argument.
3257 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3259 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3260 passed by the function are trusted implicitly. If any of them signed the
3261 response then it is assumed to be valid and is not verified.
3264 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3265 to data. This was previously part of the PKCS7 ASN1 code. This
3266 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3267 [Steve Henson, reported by Kenneth R. Robinette
3268 <support@securenetterm.com>]
3270 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3271 routines: without these tracing memory leaks is very painful.
3272 Fix leaks in PKCS12 and PKCS7 routines.
3275 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3276 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3277 effectively meant GeneralizedTime would never be used. Now it
3278 is initialised to -1 but X509_time_adj() now has to check the value
3279 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3280 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3281 [Steve Henson, reported by Kenneth R. Robinette
3282 <support@securenetterm.com>]
3284 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3285 result in a zero length in the ASN1_INTEGER structure which was
3286 not consistent with the structure when d2i_ASN1_INTEGER() was used
3287 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3288 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3289 where it did not print out a minus for negative ASN1_INTEGER.
3292 *) Add summary printout to ocsp utility. The various functions which
3293 convert status values to strings have been renamed to:
3294 OCSP_response_status_str(), OCSP_cert_status_str() and
3295 OCSP_crl_reason_str() and are no longer static. New options
3296 to verify nonce values and to disable verification. OCSP response
3297 printout format cleaned up.
3300 *) Add additional OCSP certificate checks. These are those specified
3301 in RFC2560. This consists of two separate checks: the CA of the
3302 certificate being checked must either be the OCSP signer certificate
3303 or the issuer of the OCSP signer certificate. In the latter case the
3304 OCSP signer certificate must contain the OCSP signing extended key
3305 usage. This check is performed by attempting to match the OCSP
3306 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3307 in the OCSP_CERTID structures of the response.
3310 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3311 and related routines. This uses the standard OpenSSL certificate
3312 verify routines to perform initial checks (just CA validity) and
3313 to obtain the certificate chain. Then additional checks will be
3314 performed on the chain. Currently the root CA is checked to see
3315 if it is explicitly trusted for OCSP signing. This is used to set
3316 a root CA as a global signing root: that is any certificate that
3317 chains to that CA is an acceptable OCSP signing certificate.
3320 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3321 extensions from a separate configuration file.
3322 As when reading extensions from the main configuration file,
3323 the '-extensions ...' option may be used for specifying the
3325 [Massimiliano Pala <madwolf@comune.modena.it>]
3327 *) New OCSP utility. Allows OCSP requests to be generated or
3328 read. The request can be sent to a responder and the output
3329 parsed, outputed or printed in text form. Not complete yet:
3330 still needs to check the OCSP response validity.
3333 *) New subcommands for 'openssl ca':
3334 'openssl ca -status <serial>' prints the status of the cert with
3335 the given serial number (according to the index file).
3336 'openssl ca -updatedb' updates the expiry status of certificates
3338 [Massimiliano Pala <madwolf@comune.modena.it>]
3340 *) New '-newreq-nodes' command option to CA.pl. This is like
3341 '-newreq', but calls 'openssl req' with the '-nodes' option
3342 so that the resulting key is not encrypted.
3343 [Damien Miller <djm@mindrot.org>]
3345 *) New configuration for the GNU Hurd.
3346 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3348 *) Initial code to implement OCSP basic response verify. This
3349 is currently incomplete. Currently just finds the signer's
3350 certificate and verifies the signature on the response.
3353 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3354 value of OPENSSLDIR. This is available via the new '-d' option
3355 to 'openssl version', and is also included in 'openssl version -a'.
3358 *) Allowing defining memory allocation callbacks that will be given
3359 file name and line number information in additional arguments
3360 (a const char* and an int). The basic functionality remains, as
3361 well as the original possibility to just replace malloc(),
3362 realloc() and free() by functions that do not know about these
3363 additional arguments. To register and find out the current
3364 settings for extended allocation functions, the following
3365 functions are provided:
3367 CRYPTO_set_mem_ex_functions
3368 CRYPTO_set_locked_mem_ex_functions
3369 CRYPTO_get_mem_ex_functions
3370 CRYPTO_get_locked_mem_ex_functions
3372 These work the same way as CRYPTO_set_mem_functions and friends.
3373 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3374 extended allocation function is enabled.
3375 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3376 a conventional allocation function is enabled.
3377 [Richard Levitte, Bodo Moeller]
3379 *) Finish off removing the remaining LHASH function pointer casts.
3380 There should no longer be any prototype-casting required when using
3381 the LHASH abstraction, and any casts that remain are "bugs". See
3382 the callback types and macros at the head of lhash.h for details
3383 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3386 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3387 If /dev/[u]random devices are not available or do not return enough
3388 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3390 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3391 /etc/entropy will be queried once each in this sequence, quering stops
3392 when enough entropy was collected without querying more sockets.
3395 *) Change the Unix RAND_poll() variant to be able to poll several
3396 random devices, as specified by DEVRANDOM, until a sufficient amount
3397 of data has been collected. We spend at most 10 ms on each file
3398 (select timeout) and read in non-blocking mode. DEVRANDOM now
3399 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3400 (previously it was just the string "/dev/urandom"), so on typical
3401 platforms the 10 ms delay will never occur.
3402 Also separate out the Unix variant to its own file, rand_unix.c.
3403 For VMS, there's a currently-empty rand_vms.c.
3406 *) Move OCSP client related routines to ocsp_cl.c. These
3407 provide utility functions which an application needing
3408 to issue a request to an OCSP responder and analyse the
3409 response will typically need: as opposed to those which an
3410 OCSP responder itself would need which will be added later.
3412 OCSP_request_sign() signs an OCSP request with an API similar
3413 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3414 response. OCSP_response_get1_basic() extracts basic response
3415 from response. OCSP_resp_find_status(): finds and extracts status
3416 information from an OCSP_CERTID structure (which will be created
3417 when the request structure is built). These are built from lower
3418 level functions which work on OCSP_SINGLERESP structures but
3419 wont normally be used unless the application wishes to examine
3420 extensions in the OCSP response for example.
3422 Replace nonce routines with a pair of functions.
3423 OCSP_request_add1_nonce() adds a nonce value and optionally
3424 generates a random value. OCSP_check_nonce() checks the
3425 validity of the nonce in an OCSP response.
3428 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3429 This doesn't copy the supplied OCSP_CERTID and avoids the
3430 need to free up the newly created id. Change return type
3431 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3432 This can then be used to add extensions to the request.
3433 Deleted OCSP_request_new(), since most of its functionality
3434 is now in OCSP_REQUEST_new() (and the case insensitive name
3435 clash) apart from the ability to set the request name which
3436 will be added elsewhere.
3439 *) Update OCSP API. Remove obsolete extensions argument from
3440 various functions. Extensions are now handled using the new
3441 OCSP extension code. New simple OCSP HTTP function which
3442 can be used to send requests and parse the response.
3445 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3446 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3447 uses the special reorder version of SET OF to sort the attributes
3448 and reorder them to match the encoded order. This resolves a long
3449 standing problem: a verify on a PKCS7 structure just after signing
3450 it used to fail because the attribute order did not match the
3451 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3452 it uses the received order. This is necessary to tolerate some broken
3453 software that does not order SET OF. This is handled by encoding
3454 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3455 to produce the required SET OF.
3458 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3459 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3460 files to get correct declarations of the ASN.1 item variables.
3463 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3464 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3465 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3466 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3467 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3468 ASN1_ITEM and no wrapper functions.
3471 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3472 replace the old function pointer based I/O routines. Change most of
3473 the *_d2i_bio() and *_d2i_fp() functions to use these.
3476 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3477 lines, recognice more "algorithms" that can be deselected, and make
3478 it complain about algorithm deselection that isn't recognised.
3481 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3482 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3483 to use new functions. Add NO_ASN1_OLD which can be set to remove
3484 some old style ASN1 functions: this can be used to determine if old
3485 code will still work when these eventually go away.
3488 *) New extension functions for OCSP structures, these follow the
3489 same conventions as certificates and CRLs.
3492 *) New function X509V3_add1_i2d(). This automatically encodes and
3493 adds an extension. Its behaviour can be customised with various
3494 flags to append, replace or delete. Various wrappers added for
3495 certifcates and CRLs.
3498 *) Fix to avoid calling the underlying ASN1 print routine when
3499 an extension cannot be parsed. Correct a typo in the
3500 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3503 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3504 entries for variables.
3507 *) Add functionality to apps/openssl.c for detecting locking
3508 problems: As the program is single-threaded, all we have
3509 to do is register a locking callback using an array for
3510 storing which locks are currently held by the program.
3513 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3514 SSL_get_ex_data_X509_STORE_idx(), which is used in
3515 ssl_verify_cert_chain() and thus can be called at any time
3516 during TLS/SSL handshakes so that thread-safety is essential.
3517 Unfortunately, the ex_data design is not at all suited
3518 for multi-threaded use, so it probably should be abolished.
3521 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3522 [Broadcom, tweaked and integrated by Geoff Thorpe]
3524 *) Move common extension printing code to new function
3525 X509V3_print_extensions(). Reorganise OCSP print routines and
3526 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3529 *) New function X509_signature_print() to remove duplication in some
3533 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3534 set (this was treated exactly the same as SET OF previously). This
3535 is used to reorder the STACK representing the structure to match the
3536 encoding. This will be used to get round a problem where a PKCS7
3537 structure which was signed could not be verified because the STACK
3538 order did not reflect the encoded order.
3541 *) Reimplement the OCSP ASN1 module using the new code.
3544 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3545 for its ASN1 operations. The old style function pointers still exist
3546 for now but they will eventually go away.
3549 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3550 completely replaces the old ASN1 functionality with a table driven
3551 encoder and decoder which interprets an ASN1_ITEM structure describing
3552 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3553 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3554 has also been converted to the new form.
3557 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3558 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3559 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3560 for negative moduli.
3563 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3564 of not touching the result's sign bit.
3567 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3571 *) Changed the LHASH code to use prototypes for callbacks, and created
3572 macros to declare and implement thin (optionally static) functions
3573 that provide type-safety and avoid function pointer casting for the
3574 type-specific callbacks.
3577 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3579 [Veers Staats <staatsvr@asc.hpc.mil>,
3580 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3582 *) Reformat the FAQ so the different questions and answers can be divided
3583 in sections depending on the subject.
3586 *) Have the zlib compression code load ZLIB.DLL dynamically under
3590 *) New function BN_mod_sqrt for computing square roots modulo a prime
3591 (using the probabilistic Tonelli-Shanks algorithm unless
3592 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3593 be handled deterministically).
3594 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3596 *) Make BN_mod_inverse faster by explicitly handling small quotients
3597 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3598 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3601 *) New function BN_kronecker.
3604 *) Fix BN_gcd so that it works on negative inputs; the result is
3605 positive unless both parameters are zero.
3606 Previously something reasonably close to an infinite loop was
3607 possible because numbers could be growing instead of shrinking
3608 in the implementation of Euclid's algorithm.
3611 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3612 sign of the number in question.
3614 Fix BN_is_word(a,w) to work correctly for w == 0.
3616 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3617 because its test if the absolute value of 'a' equals 'w'.
3618 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3619 it exists mostly for use in the implementations of BN_is_zero(),
3620 BN_is_one(), and BN_is_word().
3623 *) New function BN_swap.
3626 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3627 the exponentiation functions are more likely to produce reasonable
3628 results on negative inputs.
3631 *) Change BN_mod_mul so that the result is always non-negative.
3632 Previously, it could be negative if one of the factors was negative;
3633 I don't think anyone really wanted that behaviour.
3636 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3637 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3638 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3639 and add new functions:
3648 BN_mod_lshift1_quick
3652 These functions always generate non-negative results.
3654 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3655 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3657 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3658 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3659 be reduced modulo m.
3660 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3663 The following entry accidentily appeared in the CHANGES file
3664 distributed with OpenSSL 0.9.7. The modifications described in
3665 it do *not* apply to OpenSSL 0.9.7.
3667 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3668 was actually never needed) and in BN_mul(). The removal in BN_mul()
3669 required a small change in bn_mul_part_recursive() and the addition
3670 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3671 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3672 bn_sub_words() and bn_add_words() except they take arrays with
3677 *) In 'openssl passwd', verify passwords read from the terminal
3678 unless the '-salt' option is used (which usually means that
3679 verification would just waste user's time since the resulting
3680 hash is going to be compared with some given password hash)
3681 or the new '-noverify' option is used.
3683 This is an incompatible change, but it does not affect
3684 non-interactive use of 'openssl passwd' (passwords on the command
3685 line, '-stdin' option, '-in ...' option) and thus should not
3689 *) Remove all references to RSAref, since there's no more need for it.
3692 *) Make DSO load along a path given through an environment variable
3693 (SHLIB_PATH) with shl_load().
3696 *) Constify the ENGINE code as a result of BIGNUM constification.
3697 Also constify the RSA code and most things related to it. In a
3698 few places, most notable in the depth of the ASN.1 code, ugly
3699 casts back to non-const were required (to be solved at a later
3703 *) Make it so the openssl application has all engines loaded by default.
3706 *) Constify the BIGNUM routines a little more.
3709 *) Add the following functions:
3711 ENGINE_load_cswift()
3713 ENGINE_load_atalla()
3715 ENGINE_load_builtin_engines()
3717 That way, an application can itself choose if external engines that
3718 are built-in in OpenSSL shall ever be used or not. The benefit is
3719 that applications won't have to be linked with libdl or other dso
3720 libraries unless it's really needed.
3722 Changed 'openssl engine' to load all engines on demand.
3723 Changed the engine header files to avoid the duplication of some
3724 declarations (they differed!).
3727 *) 'openssl engine' can now list capabilities.
3730 *) Better error reporting in 'openssl engine'.
3733 *) Never call load_dh_param(NULL) in s_server.
3736 *) Add engine application. It can currently list engines by name and
3737 identity, and test if they are actually available.
3740 *) Improve RPM specification file by forcing symbolic linking and making
3741 sure the installed documentation is also owned by root.root.
3742 [Damien Miller <djm@mindrot.org>]
3744 *) Give the OpenSSL applications more possibilities to make use of
3745 keys (public as well as private) handled by engines.
3748 *) Add OCSP code that comes from CertCo.
3751 *) Add VMS support for the Rijndael code.
3754 *) Added untested support for Nuron crypto accelerator.
3757 *) Add support for external cryptographic devices. This code was
3758 previously distributed separately as the "engine" branch.
3759 [Geoff Thorpe, Richard Levitte]
3761 *) Rework the filename-translation in the DSO code. It is now possible to
3762 have far greater control over how a "name" is turned into a filename
3763 depending on the operating environment and any oddities about the
3764 different shared library filenames on each system.
3767 *) Support threads on FreeBSD-elf in Configure.
3770 *) Fix for SHA1 assembly problem with MASM: it produces
3771 warnings about corrupt line number information when assembling
3772 with debugging information. This is caused by the overlapping
3774 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3777 NCONF_get_number() has no error checking at all. As a replacement,
3778 NCONF_get_number_e() is defined (_e for "error checking") and is
3779 promoted strongly. The old NCONF_get_number is kept around for
3780 binary backward compatibility.
3781 Make it possible for methods to load from something other than a BIO,
3782 by providing a function pointer that is given a name instead of a BIO.
3783 For example, this could be used to load configuration data from an
3787 *) Fix for non blocking accept BIOs. Added new I/O special reason
3788 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3789 with non blocking I/O was not possible because no retry code was
3790 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3794 *) Added the beginnings of Rijndael support.
3797 *) Fix for bug in DirectoryString mask setting. Add support for
3798 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3799 to allow certificate printing to more controllable, additional
3800 'certopt' option to 'x509' to allow new printing options to be
3804 *) Clean old EAY MD5 hack from e_os.h.
3807 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3809 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3810 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3811 [Joe Orton, Steve Henson]
3813 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3815 *) Fix additional bug revealed by the NISCC test suite:
3817 Stop bug triggering large recursion when presented with
3818 certain ASN.1 tags (CVE-2003-0851)
3821 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3823 *) Fix various bugs revealed by running the NISCC test suite:
3825 Stop out of bounds reads in the ASN1 code when presented with
3826 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3828 If verify callback ignores invalid public key errors don't try to check
3829 certificate signature with the NULL public key.
3833 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3834 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3838 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3839 extra data after the compression methods not only for TLS 1.0
3840 but also for SSL 3.0 (as required by the specification).
3841 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3843 *) Change X509_certificate_type() to mark the key as exported/exportable
3844 when it's 512 *bits* long, not 512 bytes.
3847 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3849 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3850 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3851 a protocol version number mismatch like a decryption error
3852 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3855 *) Turn on RSA blinding by default in the default implementation
3856 to avoid a timing attack. Applications that don't want it can call
3857 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3858 They would be ill-advised to do so in most cases.
3859 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3861 *) Change RSA blinding code so that it works when the PRNG is not
3862 seeded (in this case, the secret RSA exponent is abused as
3863 an unpredictable seed -- if it is not unpredictable, there
3864 is no point in blinding anyway). Make RSA blinding thread-safe
3865 by remembering the creator's thread ID in rsa->blinding and
3866 having all other threads use local one-time blinding factors
3867 (this requires more computation than sharing rsa->blinding, but
3868 avoids excessive locking; and if an RSA object is not shared
3869 between threads, blinding will still be very fast).
3872 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3874 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3875 via timing by performing a MAC computation even if incorrrect
3876 block cipher padding has been found. This is a countermeasure
3877 against active attacks where the attacker has to distinguish
3878 between bad padding and a MAC verification error. (CVE-2003-0078)
3880 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3881 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3882 Martin Vuagnoux (EPFL, Ilion)]
3884 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3886 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3887 memory from it's contents. This is done with a counter that will
3888 place alternating values in each byte. This can be used to solve
3889 two issues: 1) the removal of calls to memset() by highly optimizing
3890 compilers, and 2) cleansing with other values than 0, since those can
3891 be read through on certain media, for example a swap space on disk.
3894 *) Bugfix: client side session caching did not work with external caching,
3895 because the session->cipher setting was not restored when reloading
3896 from the external cache. This problem was masked, when
3897 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3898 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3901 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3902 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3903 [Zeev Lieber <zeev-l@yahoo.com>]
3905 *) Undo an undocumented change introduced in 0.9.6e which caused
3906 repeated calls to OpenSSL_add_all_ciphers() and
3907 OpenSSL_add_all_digests() to be ignored, even after calling
3911 *) Change the default configuration reader to deal with last line not
3912 being properly terminated.
3915 *) Change X509_NAME_cmp() so it applies the special rules on handling
3916 DN values that are of type PrintableString, as well as RDNs of type
3917 emailAddress where the value has the type ia5String.
3918 [stefank@valicert.com via Richard Levitte]
3920 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3921 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3922 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3923 the bitwise-OR of the two for use by the majority of applications
3924 wanting this behaviour, and update the docs. The documented
3925 behaviour and actual behaviour were inconsistent and had been
3926 changing anyway, so this is more a bug-fix than a behavioural
3928 [Geoff Thorpe, diagnosed by Nadav Har'El]
3930 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3931 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3934 *) Fix initialization code race conditions in
3935 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3936 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3937 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3938 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3939 ssl2_get_cipher_by_char(),
3940 ssl3_get_cipher_by_char().
3941 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3943 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3944 the cached sessions are flushed, as the remove_cb() might use ex_data
3945 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3946 (see [openssl.org #212]).
3947 [Geoff Thorpe, Lutz Jaenicke]
3949 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3950 length, instead of the encoding length to d2i_ASN1_OBJECT.
3953 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3955 *) [In 0.9.6g-engine release:]
3956 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3957 [Lynn Gazis <lgazis@rainbow.com>]
3959 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3961 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3962 and get fix the header length calculation.
3963 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3964 Alon Kantor <alonk@checkpoint.com> (and others),
3967 *) Use proper error handling instead of 'assertions' in buffer
3968 overflow checks added in 0.9.6e. This prevents DoS (the
3969 assertions could call abort()).
3970 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3972 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3974 *) Add various sanity checks to asn1_get_length() to reject
3975 the ASN1 length bytes if they exceed sizeof(long), will appear
3976 negative or the content length exceeds the length of the
3978 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3980 *) Fix cipher selection routines: ciphers without encryption had no flags
3981 for the cipher strength set and where therefore not handled correctly
3982 by the selection routines (PR #130).
3985 *) Fix EVP_dsa_sha macro.
3989 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3990 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3991 that was added in OpenSSL 0.9.6d.
3993 As the countermeasure turned out to be incompatible with some
3994 broken SSL implementations, the new option is part of SSL_OP_ALL.
3995 SSL_OP_ALL is usually employed when compatibility with weird SSL
3996 implementations is desired (e.g. '-bugs' option to 's_client' and
3997 's_server'), so the new option is automatically set in many
4001 *) Changes in security patch:
4003 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4004 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4005 Air Force Materiel Command, USAF, under agreement number
4008 *) Add various sanity checks to asn1_get_length() to reject
4009 the ASN1 length bytes if they exceed sizeof(long), will appear
4010 negative or the content length exceeds the length of the
4011 supplied buffer. (CVE-2002-0659)
4012 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4014 *) Assertions for various potential buffer overflows, not known to
4016 [Ben Laurie (CHATS)]
4018 *) Various temporary buffers to hold ASCII versions of integers were
4019 too small for 64 bit platforms. (CVE-2002-0655)
4020 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4022 *) Remote buffer overflow in SSL3 protocol - an attacker could
4023 supply an oversized session ID to a client. (CVE-2002-0656)
4024 [Ben Laurie (CHATS)]
4026 *) Remote buffer overflow in SSL2 protocol - an attacker could
4027 supply an oversized client master key. (CVE-2002-0656)
4028 [Ben Laurie (CHATS)]
4030 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4032 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4033 encoded as NULL) with id-dsa-with-sha1.
4034 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4036 *) Check various X509_...() return values in apps/req.c.
4037 [Nils Larsch <nla@trustcenter.de>]
4039 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4040 an end-of-file condition would erronously be flagged, when the CRLF
4041 was just at the end of a processed block. The bug was discovered when
4042 processing data through a buffering memory BIO handing the data to a
4043 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4044 <ptsekov@syntrex.com> and Nedelcho Stanev.
4047 *) Implement a countermeasure against a vulnerability recently found
4048 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4049 before application data chunks to avoid the use of known IVs
4050 with data potentially chosen by the attacker.
4053 *) Fix length checks in ssl3_get_client_hello().
4056 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4057 to prevent ssl3_read_internal() from incorrectly assuming that
4058 ssl3_read_bytes() found application data while handshake
4059 processing was enabled when in fact s->s3->in_read_app_data was
4060 merely automatically cleared during the initial handshake.
4061 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4063 *) Fix object definitions for Private and Enterprise: they were not
4064 recognized in their shortname (=lowercase) representation. Extend
4065 obj_dat.pl to issue an error when using undefined keywords instead
4066 of silently ignoring the problem (Svenning Sorensen
4067 <sss@sss.dnsalias.net>).
4070 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4071 generators, i.e. generators other than 2 and 5. (Previously, the
4072 code did not properly initialise the 'add' and 'rem' values to
4073 BN_generate_prime().)
4075 In the new general case, we do not insist that 'generator' is
4076 actually a primitive root: This requirement is rather pointless;
4077 a generator of the order-q subgroup is just as good, if not
4081 *) Map new X509 verification errors to alerts. Discovered and submitted by
4082 Tom Wu <tom@arcot.com>.
4085 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4086 returning non-zero before the data has been completely received
4087 when using non-blocking I/O.
4088 [Bodo Moeller; problem pointed out by John Hughes]
4090 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4091 [Ben Laurie, Lutz Jaenicke]
4093 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4094 Yoram Zahavi <YoramZ@gilian.com>).
4097 *) Add information about CygWin 1.3 and on, and preserve proper
4098 configuration for the versions before that.
4099 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4101 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4102 check whether we deal with a copy of a session and do not delete from
4103 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4104 <izhar@checkpoint.com>.
4107 *) Do not store session data into the internal session cache, if it
4108 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4109 flag is set). Proposed by Aslam <aslam@funk.com>.
4112 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4116 *) [In 0.9.6d-engine release:]
4117 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4118 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4120 *) Add the configuration target linux-s390x.
4121 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4123 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4124 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4125 variable as an indication that a ClientHello message has been
4126 received. As the flag value will be lost between multiple
4127 invocations of ssl3_accept when using non-blocking I/O, the
4128 function may not be aware that a handshake has actually taken
4129 place, thus preventing a new session from being added to the
4132 To avoid this problem, we now set s->new_session to 2 instead of
4133 using a local variable.
4134 [Lutz Jaenicke, Bodo Moeller]
4136 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4137 if the SSL_R_LENGTH_MISMATCH error is detected.
4138 [Geoff Thorpe, Bodo Moeller]
4140 *) New 'shared_ldflag' column in Configure platform table.
4143 *) Fix EVP_CIPHER_mode macro.
4144 ["Dan S. Camper" <dan@bti.net>]
4146 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4147 type, we must throw them away by setting rr->length to 0.
4148 [D P Chang <dpc@qualys.com>]
4150 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4152 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4153 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4154 worked incorrectly for those cases where range = 10..._2 and
4155 3*range is two bits longer than range.)
4158 *) Only add signing time to PKCS7 structures if it is not already
4162 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4163 OBJ_ld_ce should be OBJ_id_ce.
4164 Also some ip-pda OIDs in crypto/objects/objects.txt were
4165 incorrect (cf. RFC 3039).
4166 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4168 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4169 returns early because it has nothing to do.
4170 [Andy Schneider <andy.schneider@bjss.co.uk>]
4172 *) [In 0.9.6c-engine release:]
4173 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4174 [Andy Schneider <andy.schneider@bjss.co.uk>]
4176 *) [In 0.9.6c-engine release:]
4177 Add support for Cryptographic Appliance's keyserver technology.
4178 (Use engine 'keyclient')
4179 [Cryptographic Appliances and Geoff Thorpe]
4181 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4182 is called via tools/c89.sh because arguments have to be
4183 rearranged (all '-L' options must appear before the first object
4185 [Richard Shapiro <rshapiro@abinitio.com>]
4187 *) [In 0.9.6c-engine release:]
4188 Add support for Broadcom crypto accelerator cards, backported
4190 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4192 *) [In 0.9.6c-engine release:]
4193 Add support for SureWare crypto accelerator cards from
4194 Baltimore Technologies. (Use engine 'sureware')
4195 [Baltimore Technologies and Mark Cox]
4197 *) [In 0.9.6c-engine release:]
4198 Add support for crypto accelerator cards from Accelerated
4199 Encryption Processing, www.aep.ie. (Use engine 'aep')
4200 [AEP Inc. and Mark Cox]
4202 *) Add a configuration entry for gcc on UnixWare.
4203 [Gary Benson <gbenson@redhat.com>]
4205 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4206 messages are stored in a single piece (fixed-length part and
4207 variable-length part combined) and fix various bugs found on the way.
4210 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4211 instead. BIO_gethostbyname() does not know what timeouts are
4212 appropriate, so entries would stay in cache even when they have
4214 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4216 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4217 faced with a pathologically small ClientHello fragment that does
4218 not contain client_version: Instead of aborting with an error,
4219 simply choose the highest available protocol version (i.e.,
4220 TLS 1.0 unless it is disabled). In practice, ClientHello
4221 messages are never sent like this, but this change gives us
4222 strictly correct behaviour at least for TLS.
4225 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4226 never resets s->method to s->ctx->method when called from within
4227 one of the SSL handshake functions.
4228 [Bodo Moeller; problem pointed out by Niko Baric]
4230 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4231 (sent using the client's version number) if client_version is
4232 smaller than the protocol version in use. Also change
4233 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4234 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4235 the client will at least see that alert.
4238 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4242 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4243 client receives HelloRequest while in a handshake.
4244 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4246 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4247 should end in 'break', not 'goto end' which circuments various
4248 cleanups done in state SSL_ST_OK. But session related stuff
4249 must be disabled for SSL_ST_OK in the case that we just sent a
4252 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4253 before just sending a HelloRequest.
4254 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4256 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4257 reveal whether illegal block cipher padding was found or a MAC
4258 verification error occured. (Neither SSLerr() codes nor alerts
4259 are directly visible to potential attackers, but the information
4260 may leak via logfiles.)
4262 Similar changes are not required for the SSL 2.0 implementation
4263 because the number of padding bytes is sent in clear for SSL 2.0,
4264 and the extra bytes are just ignored. However ssl/s2_pkt.c
4265 failed to verify that the purported number of padding bytes is in
4269 *) Add OpenUNIX-8 support including shared libraries
4270 (Boyd Lynn Gerber <gerberb@zenez.com>).
4273 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4274 'wristwatch attack' using huge encoding parameters (cf.
4275 James H. Manger's CRYPTO 2001 paper). Note that the
4276 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4277 encoding parameters and hence was not vulnerable.
4280 *) BN_sqr() bug fix.
4281 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4283 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4284 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4285 followed by modular reduction.
4286 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4288 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4289 equivalent based on BN_pseudo_rand() instead of BN_rand().
4292 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4293 This function was broken, as the check for a new client hello message
4294 to handle SGC did not allow these large messages.
4295 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4298 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4301 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4302 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4305 *) Rework the configuration and shared library support for Tru64 Unix.
4306 The configuration part makes use of modern compiler features and
4307 still retains old compiler behavior for those that run older versions
4308 of the OS. The shared library support part includes a variant that
4309 uses the RPATH feature, and is available through the special
4310 configuration target "alpha-cc-rpath", which will never be selected
4312 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4314 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4315 with the same message size as in ssl3_get_certificate_request().
4316 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4317 messages might inadvertently be reject as too long.
4318 [Petr Lampa <lampa@fee.vutbr.cz>]
4320 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4323 *) Modified SSL library such that the verify_callback that has been set
4324 specificly for an SSL object with SSL_set_verify() is actually being
4325 used. Before the change, a verify_callback set with this function was
4326 ignored and the verify_callback() set in the SSL_CTX at the time of
4327 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4328 to allow the necessary settings.
4331 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4332 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4333 done automatically (in contradiction to the requirements of the C
4334 standard). This made problems when used from OpenSSH.
4337 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4338 dh->length and always used
4340 BN_rand_range(priv_key, dh->p).
4342 BN_rand_range() is not necessary for Diffie-Hellman, and this
4343 specific range makes Diffie-Hellman unnecessarily inefficient if
4344 dh->length (recommended exponent length) is much smaller than the
4345 length of dh->p. We could use BN_rand_range() if the order of
4346 the subgroup was stored in the DH structure, but we only have
4351 BN_rand(priv_key, l, ...)
4353 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4359 RSA_eay_public_encrypt
4360 RSA_eay_private_decrypt
4361 RSA_eay_private_encrypt (signing)
4362 RSA_eay_public_decrypt (signature verification)
4364 (default implementations for RSA_public_encrypt,
4365 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4366 always reject numbers >= n.
4369 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4370 to synchronize access to 'locking_thread'. This is necessary on
4371 systems where access to 'locking_thread' (an 'unsigned long'
4372 variable) is not atomic.
4375 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4376 *before* setting the 'crypto_lock_rand' flag. The previous code had
4377 a race condition if 0 is a valid thread ID.
4378 [Travis Vitek <vitek@roguewave.com>]
4380 *) Add support for shared libraries under Irix.
4381 [Albert Chin-A-Young <china@thewrittenword.com>]
4383 *) Add configuration option to build on Linux on both big-endian and
4385 [Ralf Baechle <ralf@uni-koblenz.de>]
4387 *) Add the possibility to create shared libraries on HP-UX.
4390 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4392 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4393 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4394 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4395 PRNG state recovery was possible based on the output of
4396 one PRNG request appropriately sized to gain knowledge on
4397 'md' followed by enough consecutive 1-byte PRNG requests
4398 to traverse all of 'state'.
4400 1. When updating 'md_local' (the current thread's copy of 'md')
4401 during PRNG output generation, hash all of the previous
4402 'md_local' value, not just the half used for PRNG output.
4404 2. Make the number of bytes from 'state' included into the hash
4405 independent from the number of PRNG bytes requested.
4407 The first measure alone would be sufficient to avoid
4408 Markku-Juhani's attack. (Actually it had never occurred
4409 to me that the half of 'md_local' used for chaining was the
4410 half from which PRNG output bytes were taken -- I had always
4411 assumed that the secret half would be used.) The second
4412 measure makes sure that additional data from 'state' is never
4413 mixed into 'md_local' in small portions; this heuristically
4414 further strengthens the PRNG.
4417 *) Fix crypto/bn/asm/mips3.s.
4420 *) When only the key is given to "enc", the IV is undefined. Print out
4421 an error message in this case.
4424 *) Handle special case when X509_NAME is empty in X509 printing routines.
4427 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4428 positive and less than q.
4431 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4432 used: it isn't thread safe and the add_lock_callback should handle
4434 [Paul Rose <Paul.Rose@bridge.com>]
4436 *) Verify that incoming data obeys the block size in
4437 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4441 [Ulf Möller, Bodo Möller]
4443 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4444 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4445 when fixing the server behaviour for backwards-compatible 'client
4446 hello' messages. (Note that the attack is impractical against
4447 SSL 3.0 and TLS 1.0 anyway because length and version checking
4448 means that the probability of guessing a valid ciphertext is
4449 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4452 Before 0.9.5, the countermeasure (hide the error by generating a
4453 random 'decryption result') did not work properly because
4454 ERR_clear_error() was missing, meaning that SSL_get_error() would
4455 detect the supposedly ignored error.
4457 Both problems are now fixed.
4460 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4461 (previously it was 1024).
4464 *) Fix for compatibility mode trust settings: ignore trust settings
4465 unless some valid trust or reject settings are present.
4468 *) Fix for blowfish EVP: its a variable length cipher.
4471 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4472 parameters in DSA public key structures and return an error in the
4473 DSA routines if parameters are absent.
4476 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4477 in the current directory if neither $RANDFILE nor $HOME was set.
4478 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4479 caused some confusion to Windows users who haven't defined $HOME.
4480 Thus RAND_file_name() is changed again: e_os.h can define a
4481 DEFAULT_HOME, which will be used if $HOME is not set.
4482 For Windows, we use "C:"; on other platforms, we still require
4483 environment variables.
4485 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4486 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4487 having multiple threads call RAND_poll() concurrently.
4490 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4491 combination of a flag and a thread ID variable.
4492 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4493 flag), *other* threads can enter ssleay_add_bytes without obeying
4494 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4495 that they do not hold after the first thread unsets add_do_not_lock).
4498 *) Change bctest again: '-x' expressions are not available in all
4502 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4504 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4505 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4507 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4508 the default extension for executables, if any. Also, make the perl
4509 scripts that use symlink() to test if it really exists and use "cp"
4510 if it doesn't. All this made OpenSSL compilable and installable in
4514 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4515 If SEQUENCE is length is indefinite just set c->slen to the total
4516 amount of data available.
4517 [Steve Henson, reported by shige@FreeBSD.org]
4518 [This change does not apply to 0.9.7.]
4520 *) Change bctest to avoid here-documents inside command substitution
4521 (workaround for FreeBSD /bin/sh bug).
4522 For compatibility with Ultrix, avoid shell functions (introduced
4523 in the bctest version that searches along $PATH).
4526 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4527 with des_encrypt() defined on some operating systems, like Solaris
4531 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4532 On the Importance of Eliminating Errors in Cryptographic
4533 Computations, J. Cryptology 14 (2001) 2, 101-119,
4534 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4537 *) MIPS assembler BIGNUM division bug fix.
4540 *) Disabled incorrect Alpha assembler code.
4543 *) Fix PKCS#7 decode routines so they correctly update the length
4544 after reading an EOC for the EXPLICIT tag.
4546 [This change does not apply to 0.9.7.]
4548 *) Fix bug in PKCS#12 key generation routines. This was triggered
4549 if a 3DES key was generated with a 0 initial byte. Include
4550 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4551 (but broken) behaviour.
4554 *) Enhance bctest to search for a working bc along $PATH and print
4556 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4558 *) Fix memory leaks in err.c: free err_data string if necessary;
4559 don't write to the wrong index in ERR_set_error_data.
4562 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4566 *) Replace rdtsc with _emit statements for VC++ version 5.
4567 [Jeremy Cooper <jeremy@baymoo.org>]
4569 *) Make it possible to reuse SSLv2 sessions.
4572 *) In copy_email() check for >= 0 as a return value for
4573 X509_NAME_get_index_by_NID() since 0 is a valid index.
4574 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4576 *) Avoid coredump with unsupported or invalid public keys by checking if
4577 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4578 PKCS7_verify() fails with non detached data.
4581 *) Don't use getenv in library functions when run as setuid/setgid.
4582 New function OPENSSL_issetugid().
4585 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4586 due to incorrect handling of multi-threading:
4588 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4590 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4592 3. Count how many times MemCheck_off() has been called so that
4593 nested use can be treated correctly. This also avoids
4594 inband-signalling in the previous code (which relied on the
4595 assumption that thread ID 0 is impossible).
4598 *) Add "-rand" option also to s_client and s_server.
4601 *) Fix CPU detection on Irix 6.x.
4602 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4603 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4605 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4608 [This change does not apply to 0.9.7.]
4610 *) Use the cached encoding of an X509_NAME structure rather than
4611 copying it. This is apparently the reason for the libsafe "errors"
4612 but the code is actually correct.
4615 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4616 Bleichenbacher's DSA attack.
4617 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4618 to be set and top=0 forces the highest bit to be set; top=-1 is new
4619 and leaves the highest bit random.
4620 [Ulf Moeller, Bodo Moeller]
4622 *) In the NCONF_...-based implementations for CONF_... queries
4623 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4624 a temporary CONF structure with the data component set to NULL
4625 (which gives segmentation faults in lh_retrieve).
4626 Instead, use NULL for the CONF pointer in CONF_get_string and
4627 CONF_get_number (which may use environment variables) and directly
4628 return NULL from CONF_get_section.
4631 *) Fix potential buffer overrun for EBCDIC.
4634 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4635 keyUsage if basicConstraints absent for a CA.
4638 *) Make SMIME_write_PKCS7() write mail header values with a format that
4639 is more generally accepted (no spaces before the semicolon), since
4640 some programs can't parse those values properly otherwise. Also make
4641 sure BIO's that break lines after each write do not create invalid
4645 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4646 macros previously used would not encode an empty SEQUENCE OF
4647 and break the signature.
4649 [This change does not apply to 0.9.7.]
4651 *) Zero the premaster secret after deriving the master secret in
4655 *) Add some EVP_add_digest_alias registrations (as found in
4656 OpenSSL_add_all_digests()) to SSL_library_init()
4657 aka OpenSSL_add_ssl_algorithms(). This provides improved
4658 compatibility with peers using X.509 certificates
4659 with unconventional AlgorithmIdentifier OIDs.
4662 *) Fix for Irix with NO_ASM.
4663 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4665 *) ./config script fixes.
4666 [Ulf Moeller, Richard Levitte]
4668 *) Fix 'openssl passwd -1'.
4671 *) Change PKCS12_key_gen_asc() so it can cope with non null
4672 terminated strings whose length is passed in the passlen
4673 parameter, for example from PEM callbacks. This was done
4674 by adding an extra length parameter to asc2uni().
4675 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4677 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4678 call failed, free the DSA structure.
4681 *) Fix to uni2asc() to cope with zero length Unicode strings.
4682 These are present in some PKCS#12 files.
4685 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4686 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4687 when writing a 32767 byte record.
4688 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4690 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4691 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4693 (RSA objects have a reference count access to which is protected
4694 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4695 so they are meant to be shared between threads.)
4696 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4697 "Reddie, Steven" <Steven.Reddie@ca.com>]
4699 *) Fix a deadlock in CRYPTO_mem_leaks().
4702 *) Use better test patterns in bntest.
4705 *) rand_win.c fix for Borland C.
4708 *) BN_rshift bugfix for n == 0.
4711 *) Add a 'bctest' script that checks for some known 'bc' bugs
4712 so that 'make test' does not abort just because 'bc' is broken.
4715 *) Store verify_result within SSL_SESSION also for client side to
4716 avoid potential security hole. (Re-used sessions on the client side
4717 always resulted in verify_result==X509_V_OK, not using the original
4718 result of the server certificate verification.)
4721 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4722 SSL3_RT_APPLICATION_DATA, return 0.
4723 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4727 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4728 releases, have been re-implemented by renaming the previous
4729 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4730 and ssl3_read_internal, respectively, and adding 'peek' parameters
4731 to them. The new ssl[23]_{read,peek} functions are calls to
4732 ssl[23]_read_internal with the 'peek' flag set appropriately.
4733 A 'peek' parameter has also been added to ssl3_read_bytes, which
4734 does the actual work for ssl3_read_internal.
4737 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4738 the method-specific "init()" handler. Also clean up ex_data after
4739 calling the method-specific "finish()" handler. Previously, this was
4740 happening the other way round.
4743 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4744 The previous value, 12, was not always sufficient for BN_mod_exp().
4747 *) Make sure that shared libraries get the internal name engine with
4748 the full version number and not just 0. This should mark the
4749 shared libraries as not backward compatible. Of course, this should
4750 be changed again when we can guarantee backward binary compatibility.
4753 *) Fix typo in get_cert_by_subject() in by_dir.c
4754 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4756 *) Rework the system to generate shared libraries:
4758 - Make note of the expected extension for the shared libraries and
4759 if there is a need for symbolic links from for example libcrypto.so.0
4760 to libcrypto.so.0.9.7. There is extended info in Configure for
4763 - Make as few rebuilds of the shared libraries as possible.
4765 - Still avoid linking the OpenSSL programs with the shared libraries.
4767 - When installing, install the shared libraries separately from the
4771 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4773 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4774 and not in SSL_clear because the latter is also used by the
4775 accept/connect functions; previously, the settings made by
4776 SSL_set_read_ahead would be lost during the handshake.
4777 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4779 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4780 Previously, it would create entries for disableed algorithms no
4784 *) Added several new manual pages for SSL_* function.
4787 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4789 *) In ssl23_get_client_hello, generate an error message when faced
4790 with an initial SSL 3.0/TLS record that is too small to contain the
4791 first two bytes of the ClientHello message, i.e. client_version.
4792 (Note that this is a pathologic case that probably has never happened
4793 in real life.) The previous approach was to use the version number
4794 from the record header as a substitute; but our protocol choice
4795 should not depend on that one because it is not authenticated
4796 by the Finished messages.
4799 *) More robust randomness gathering functions for Windows.
4800 [Jeffrey Altman <jaltman@columbia.edu>]
4802 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4803 not set then we don't setup the error code for issuer check errors
4804 to avoid possibly overwriting other errors which the callback does
4805 handle. If an application does set the flag then we assume it knows
4806 what it is doing and can handle the new informational codes
4810 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4811 a general "ANY" type, as such it should be able to decode anything
4812 including tagged types. However it didn't check the class so it would
4813 wrongly interpret tagged types in the same way as their universal
4814 counterpart and unknown types were just rejected. Changed so that the
4815 tagged and unknown types are handled in the same way as a SEQUENCE:
4816 that is the encoding is stored intact. There is also a new type
4817 "V_ASN1_OTHER" which is used when the class is not universal, in this
4818 case we have no idea what the actual type is so we just lump them all
4822 *) On VMS, stdout may very well lead to a file that is written to
4823 in a record-oriented fashion. That means that every write() will
4824 write a separate record, which will be read separately by the
4825 programs trying to read from it. This can be very confusing.
4827 The solution is to put a BIO filter in the way that will buffer
4828 text until a linefeed is reached, and then write everything a
4829 line at a time, so every record written will be an actual line,
4830 not chunks of lines and not (usually doesn't happen, but I've
4831 seen it once) several lines in one record. BIO_f_linebuffer() is
4834 Currently, it's a VMS-only method, because that's where it has
4835 been tested well enough.
4838 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4839 it can return incorrect results.
4840 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4841 but it was in 0.9.6-beta[12].)
4844 *) Disable the check for content being present when verifying detached
4845 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4846 include zero length content when signing messages.
4849 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4850 BIO_ctrl (for BIO pairs).
4853 *) Add DSO method for VMS.
4856 *) Bug fix: Montgomery multiplication could produce results with the
4860 *) Add RPM specification openssl.spec and modify it to build three
4861 packages. The default package contains applications, application
4862 documentation and run-time libraries. The devel package contains
4863 include files, static libraries and function documentation. The
4864 doc package contains the contents of the doc directory. The original
4865 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4868 *) Add a large number of documentation files for many SSL routines.
4869 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4871 *) Add a configuration entry for Sony News 4.
4872 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4874 *) Don't set the two most significant bits to one when generating a
4875 random number < q in the DSA library.
4878 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4879 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4880 the underlying transport is blocking) if a handshake took place.
4881 (The default behaviour is needed by applications such as s_client
4882 and s_server that use select() to determine when to use SSL_read;
4883 but for applications that know in advance when to expect data, it
4884 just makes things more complicated.)
4887 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4891 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4892 work better on such systems.
4893 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4895 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4896 Update PKCS12_parse() so it copies the friendlyName and the
4897 keyid to the certificates aux info.
4900 *) Fix bug in PKCS7_verify() which caused an infinite loop
4901 if there was more than one signature.
4902 [Sven Uszpelkat <su@celocom.de>]
4904 *) Major change in util/mkdef.pl to include extra information
4905 about each symbol, as well as presentig variables as well
4906 as functions. This change means that there's n more need
4907 to rebuild the .num files when some algorithms are excluded.
4910 *) Allow the verify time to be set by an application,
4911 rather than always using the current time.
4914 *) Phase 2 verify code reorganisation. The certificate
4915 verify code now looks up an issuer certificate by a
4916 number of criteria: subject name, authority key id
4917 and key usage. It also verifies self signed certificates
4918 by the same criteria. The main comparison function is
4919 X509_check_issued() which performs these checks.
4921 Lot of changes were necessary in order to support this
4922 without completely rewriting the lookup code.
4924 Authority and subject key identifier are now cached.
4926 The LHASH 'certs' is X509_STORE has now been replaced
4927 by a STACK_OF(X509_OBJECT). This is mainly because an
4928 LHASH can't store or retrieve multiple objects with
4929 the same hash value.
4931 As a result various functions (which were all internal
4932 use only) have changed to handle the new X509_STORE
4933 structure. This will break anything that messed round
4934 with X509_STORE internally.
4936 The functions X509_STORE_add_cert() now checks for an
4937 exact match, rather than just subject name.
4939 The X509_STORE API doesn't directly support the retrieval
4940 of multiple certificates matching a given criteria, however
4941 this can be worked round by performing a lookup first
4942 (which will fill the cache with candidate certificates)
4943 and then examining the cache for matches. This is probably
4944 the best we can do without throwing out X509_LOOKUP
4945 entirely (maybe later...).
4947 The X509_VERIFY_CTX structure has been enhanced considerably.
4949 All certificate lookup operations now go via a get_issuer()
4950 callback. Although this currently uses an X509_STORE it
4951 can be replaced by custom lookups. This is a simple way
4952 to bypass the X509_STORE hackery necessary to make this
4953 work and makes it possible to use more efficient techniques
4954 in future. A very simple version which uses a simple
4955 STACK for its trusted certificate store is also provided
4956 using X509_STORE_CTX_trusted_stack().
4958 The verify_cb() and verify() callbacks now have equivalents
4959 in the X509_STORE_CTX structure.
4961 X509_STORE_CTX also has a 'flags' field which can be used
4962 to customise the verify behaviour.
4965 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4966 excludes S/MIME capabilities.
4969 *) When a certificate request is read in keep a copy of the
4970 original encoding of the signed data and use it when outputing
4971 again. Signatures then use the original encoding rather than
4972 a decoded, encoded version which may cause problems if the
4973 request is improperly encoded.
4976 *) For consistency with other BIO_puts implementations, call
4977 buffer_write(b, ...) directly in buffer_puts instead of calling
4980 In BIO_puts, increment b->num_write as in BIO_write.
4981 [Peter.Sylvester@EdelWeb.fr]
4983 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4984 BN_zero, we may not return a BIGNUM with an array consisting of
4988 *) Avoid calling abort() from within the library when problems are
4989 detected, except if preprocessor symbols have been defined
4990 (such as REF_CHECK, BN_DEBUG etc.).
4993 *) New openssl application 'rsautl'. This utility can be
4994 used for low level RSA operations. DER public key
4995 BIO/fp routines also added.
4998 *) New Configure entry and patches for compiling on QNX 4.
4999 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5001 *) A demo state-machine implementation was sponsored by
5002 Nuron (http://www.nuron.com/) and is now available in
5003 demos/state_machine.
5006 *) New options added to the 'dgst' utility for signature
5007 generation and verification.
5010 *) Unrecognized PKCS#7 content types are now handled via a
5011 catch all ASN1_TYPE structure. This allows unsupported
5012 types to be stored as a "blob" and an application can
5013 encode and decode it manually.
5016 *) Fix various signed/unsigned issues to make a_strex.c
5018 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5020 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5021 length if passed a buffer. ASN1_INTEGER_to_BN failed
5022 if passed a NULL BN and its argument was negative.
5023 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5025 *) Modification to PKCS#7 encoding routines to output definite
5026 length encoding. Since currently the whole structures are in
5027 memory there's not real point in using indefinite length
5028 constructed encoding. However if OpenSSL is compiled with
5029 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5032 *) Added BIO_vprintf() and BIO_vsnprintf().
5035 *) Added more prefixes to parse for in the the strings written
5036 through a logging bio, to cover all the levels that are available
5037 through syslog. The prefixes are now:
5039 PANIC, EMERG, EMR => LOG_EMERG
5040 ALERT, ALR => LOG_ALERT
5041 CRIT, CRI => LOG_CRIT
5042 ERROR, ERR => LOG_ERR
5043 WARNING, WARN, WAR => LOG_WARNING
5044 NOTICE, NOTE, NOT => LOG_NOTICE
5045 INFO, INF => LOG_INFO
5046 DEBUG, DBG => LOG_DEBUG
5048 and as before, if none of those prefixes are present at the
5049 beginning of the string, LOG_ERR is chosen.
5051 On Win32, the LOG_* levels are mapped according to this:
5053 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5054 LOG_WARNING => EVENTLOG_WARNING_TYPE
5055 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5059 *) Made it possible to reconfigure with just the configuration
5060 argument "reconf" or "reconfigure". The command line arguments
5061 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5062 and are retrieved from there when reconfiguring.
5066 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5068 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5071 *) The obj_dat.pl script was messing up the sorting of object
5072 names. The reason was that it compared the quoted version
5073 of strings as a result "OCSP" > "OCSP Signing" because
5074 " > SPACE. Changed script to store unquoted versions of
5075 names and add quotes on output. It was also omitting some
5076 names from the lookup table if they were given a default
5077 value (that is if SN is missing it is given the same
5078 value as LN and vice versa), these are now added on the
5079 grounds that if an object has a name we should be able to
5080 look it up. Finally added warning output when duplicate
5081 short or long names are found.
5084 *) Changes needed for Tandem NSK.
5085 [Scott Uroff <scott@xypro.com>]
5087 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5088 RSA_padding_check_SSLv23(), special padding was never detected
5089 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5090 version rollback attacks was not effective.
5092 In s23_clnt.c, don't use special rollback-attack detection padding
5093 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5094 client; similarly, in s23_srvr.c, don't do the rollback check if
5095 SSL 2.0 is the only protocol enabled in the server.
5098 *) Make it possible to get hexdumps of unprintable data with 'openssl
5099 asn1parse'. By implication, the functions ASN1_parse_dump() and
5100 BIO_dump_indent() are added.
5103 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5104 these print out strings and name structures based on various
5105 flags including RFC2253 support and proper handling of
5106 multibyte characters. Added options to the 'x509' utility
5107 to allow the various flags to be set.
5110 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5111 Also change the functions X509_cmp_current_time() and
5112 X509_gmtime_adj() work with an ASN1_TIME structure,
5113 this will enable certificates using GeneralizedTime in validity
5114 dates to be checked.
5117 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5118 negative public key encodings) on by default,
5119 NO_NEG_PUBKEY_BUG can be set to disable it.
5122 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5123 content octets. An i2c_ASN1_OBJECT is unnecessary because
5124 the encoding can be trivially obtained from the structure.
5127 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5128 not read locks (CRYPTO_r_[un]lock).
5131 *) A first attempt at creating official support for shared
5132 libraries through configuration. I've kept it so the
5133 default is static libraries only, and the OpenSSL programs
5134 are always statically linked for now, but there are
5135 preparations for dynamic linking in place.
5136 This has been tested on Linux and Tru64.
5139 *) Randomness polling function for Win9x, as described in:
5140 Peter Gutmann, Software Generation of Practically Strong
5144 *) Fix so PRNG is seeded in req if using an already existing
5148 *) New options to smime application. -inform and -outform
5149 allow alternative formats for the S/MIME message including
5150 PEM and DER. The -content option allows the content to be
5151 specified separately. This should allow things like Netscape
5152 form signing output easier to verify.
5155 *) Fix the ASN1 encoding of tags using the 'long form'.
5158 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5159 STRING types. These convert content octets to and from the
5160 underlying type. The actual tag and length octets are
5161 already assumed to have been read in and checked. These
5162 are needed because all other string types have virtually
5163 identical handling apart from the tag. By having versions
5164 of the ASN1 functions that just operate on content octets
5165 IMPLICIT tagging can be handled properly. It also allows
5166 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5167 and ASN1_INTEGER are identical apart from the tag.
5170 *) Change the handling of OID objects as follows:
5172 - New object identifiers are inserted in objects.txt, following
5173 the syntax given in objects.README.
5174 - objects.pl is used to process obj_mac.num and create a new
5176 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5179 This is currently kind of a hack, and the perl code in objects.pl
5180 isn't very elegant, but it works as I intended. The simplest way
5181 to check that it worked correctly is to look in obj_dat.h and
5182 check the array nid_objs and make sure the objects haven't moved
5183 around (this is important!). Additions are OK, as well as
5184 consistent name changes.
5187 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5190 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5191 The given file adds to whatever has already been seeded into the
5192 random pool through the RANDFILE configuration file option or
5193 environment variable, or the default random state file.
5196 *) mkstack.pl now sorts each macro group into lexical order.
5197 Previously the output order depended on the order the files
5198 appeared in the directory, resulting in needless rewriting
5202 *) Patches to make OpenSSL compile under Win32 again. Mostly
5203 work arounds for the VC++ problem that it treats func() as
5204 func(void). Also stripped out the parts of mkdef.pl that
5205 added extra typesafe functions: these no longer exist.
5208 *) Reorganisation of the stack code. The macros are now all
5209 collected in safestack.h . Each macro is defined in terms of
5210 a "stack macro" of the form SKM_<name>(type, a, b). The
5211 DEBUG_SAFESTACK is now handled in terms of function casts,
5212 this has the advantage of retaining type safety without the
5213 use of additional functions. If DEBUG_SAFESTACK is not defined
5214 then the non typesafe macros are used instead. Also modified the
5215 mkstack.pl script to handle the new form. Needs testing to see
5216 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5217 the default if no major problems. Similar behaviour for ASN1_SET_OF
5218 and PKCS12_STACK_OF.
5221 *) When some versions of IIS use the 'NET' form of private key the
5222 key derivation algorithm is different. Normally MD5(password) is
5223 used as a 128 bit RC4 key. In the modified case
5224 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5225 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5226 as the old Netscape_RSA functions except they have an additional
5227 'sgckey' parameter which uses the modified algorithm. Also added
5228 an -sgckey command line option to the rsa utility. Thanks to
5229 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5230 algorithm to openssl-dev.
5233 *) The evp_local.h macros were using 'c.##kname' which resulted in
5234 invalid expansion on some systems (SCO 5.0.5 for example).
5235 Corrected to 'c.kname'.
5236 [Phillip Porch <root@theporch.com>]
5238 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5239 a STACK of email addresses from a certificate or request, these look
5240 in the subject name and the subject alternative name extensions and
5241 omit any duplicate addresses.
5244 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5245 This makes DSA verification about 2 % faster.
5248 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5249 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5250 plus overhead for 1024 bit moduli).
5251 This makes exponentiations about 0.5 % faster for 1024 bit
5252 exponents (as measured by "openssl speed rsa2048").
5255 *) Rename memory handling macros to avoid conflicts with other
5257 Malloc => OPENSSL_malloc
5258 Malloc_locked => OPENSSL_malloc_locked
5259 Realloc => OPENSSL_realloc
5260 Free => OPENSSL_free
5263 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5264 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5267 *) CygWin32 support.
5268 [John Jarvie <jjarvie@newsguy.com>]
5270 *) The type-safe stack code has been rejigged. It is now only compiled
5271 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5272 by default all type-specific stack functions are "#define"d back to
5273 standard stack functions. This results in more streamlined output
5274 but retains the type-safety checking possibilities of the original
5278 *) The STACK code has been cleaned up, and certain type declarations
5279 that didn't make a lot of sense have been brought in line. This has
5280 also involved a cleanup of sorts in safestack.h to more correctly
5281 map type-safe stack functions onto their plain stack counterparts.
5282 This work has also resulted in a variety of "const"ifications of
5283 lots of the code, especially "_cmp" operations which should normally
5284 be prototyped with "const" parameters anyway.
5287 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5288 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5289 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5290 where all of 'md' is used each time the PRNG is used, but 'state'
5291 is used only indexed by a cyclic counter. As entropy may not be
5292 well distributed from the beginning, 'md' is important as a
5293 chaining variable. However, the output function chains only half
5294 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5295 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5296 in all of 'state' being rewritten, with the new values depending
5297 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5300 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5301 the handshake is continued after ssl_verify_cert_chain();
5302 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5303 can lead to 'unexplainable' connection aborts later.
5304 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5306 *) Major EVP API cipher revision.
5307 Add hooks for extra EVP features. This allows various cipher
5308 parameters to be set in the EVP interface. Support added for variable
5309 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5310 setting of RC2 and RC5 parameters.
5312 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5315 Remove lots of duplicated code from the EVP library. For example *every*
5316 cipher init() function handles the 'iv' in the same way according to the
5317 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5318 for CFB and OFB modes they zero ctx->num.
5320 New functionality allows removal of S/MIME code RC2 hack.
5322 Most of the routines have the same form and so can be declared in terms
5325 By shifting this to the top level EVP_CipherInit() it can be removed from
5326 all individual ciphers. If the cipher wants to handle IVs or keys
5327 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5330 Change lots of functions like EVP_EncryptUpdate() to now return a
5331 value: although software versions of the algorithms cannot fail
5332 any installed hardware versions can.
5335 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5336 this option is set, tolerate broken clients that send the negotiated
5337 protocol version number instead of the requested protocol version
5341 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5342 i.e. non-zero for export ciphersuites, zero otherwise.
5343 Previous versions had this flag inverted, inconsistent with
5344 rsa_tmp_cb (..._TMP_RSA_CB).
5345 [Bodo Moeller; problem reported by Amit Chopra]
5347 *) Add missing DSA library text string. Work around for some IIS
5348 key files with invalid SEQUENCE encoding.
5351 *) Add a document (doc/standards.txt) that list all kinds of standards
5352 and so on that are implemented in OpenSSL.
5355 *) Enhance c_rehash script. Old version would mishandle certificates
5356 with the same subject name hash and wouldn't handle CRLs at all.
5357 Added -fingerprint option to crl utility, to support new c_rehash
5361 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5364 *) Fix for SSL server purpose checking. Server checking was
5365 rejecting certificates which had extended key usage present
5366 but no ssl client purpose.
5367 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5369 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5370 is a little unclear about how a blank password is handled.
5371 Since the password in encoded as a BMPString with terminating
5372 double NULL a zero length password would end up as just the
5373 double NULL. However no password at all is different and is
5374 handled differently in the PKCS#12 key generation code. NS
5375 treats a blank password as zero length. MSIE treats it as no
5376 password on export: but it will try both on import. We now do
5377 the same: PKCS12_parse() tries zero length and no password if
5378 the password is set to "" or NULL (NULL is now a valid password:
5379 it wasn't before) as does the pkcs12 application.
5382 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5383 perror when PEM_read_bio_X509_REQ fails, the error message must
5384 be obtained from the error queue.
5387 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5388 it in ERR_remove_state if appropriate, and change ERR_get_state
5389 accordingly to avoid race conditions (this is necessary because
5390 thread_hash is no longer constant once set).
5393 *) Bugfix for linux-elf makefile.one.
5396 *) RSA_get_default_method() will now cause a default
5397 RSA_METHOD to be chosen if one doesn't exist already.
5398 Previously this was only set during a call to RSA_new()
5399 or RSA_new_method(NULL) meaning it was possible for
5400 RSA_get_default_method() to return NULL.
5403 *) Added native name translation to the existing DSO code
5404 that will convert (if the flag to do so is set) filenames
5405 that are sufficiently small and have no path information
5406 into a canonical native form. Eg. "blah" converted to
5407 "libblah.so" or "blah.dll" etc.
5410 *) New function ERR_error_string_n(e, buf, len) which is like
5411 ERR_error_string(e, buf), but writes at most 'len' bytes
5412 including the 0 terminator. For ERR_error_string_n, 'buf'
5414 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5416 *) CONF library reworked to become more general. A new CONF
5417 configuration file reader "class" is implemented as well as a
5418 new functions (NCONF_*, for "New CONF") to handle it. The now
5419 old CONF_* functions are still there, but are reimplemented to
5420 work in terms of the new functions. Also, a set of functions
5421 to handle the internal storage of the configuration data is
5422 provided to make it easier to write new configuration file
5423 reader "classes" (I can definitely see something reading a
5424 configuration file in XML format, for example), called _CONF_*,
5425 or "the configuration storage API"...
5427 The new configuration file reading functions are:
5429 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5430 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5432 NCONF_default, NCONF_WIN32
5434 NCONF_dump_fp, NCONF_dump_bio
5436 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5437 NCONF_new creates a new CONF object. This works in the same way
5438 as other interfaces in OpenSSL, like the BIO interface.
5439 NCONF_dump_* dump the internal storage of the configuration file,
5440 which is useful for debugging. All other functions take the same
5441 arguments as the old CONF_* functions wth the exception of the
5442 first that must be a `CONF *' instead of a `LHASH *'.
5444 To make it easer to use the new classes with the old CONF_* functions,
5445 the function CONF_set_default_method is provided.
5448 *) Add '-tls1' option to 'openssl ciphers', which was already
5449 mentioned in the documentation but had not been implemented.
5450 (This option is not yet really useful because even the additional
5451 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5454 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5455 OpenSSL-based applications) load shared libraries and bind to
5456 them in a portable way.
5457 [Geoff Thorpe, with contributions from Richard Levitte]
5459 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5461 *) Make sure _lrotl and _lrotr are only used with MSVC.
5463 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5464 (the default implementation of RAND_status).
5466 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5467 to '-clrext' (= clear extensions), as intended and documented.
5468 [Bodo Moeller; inconsistency pointed out by Michael Attili
5471 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5472 was larger than the MD block size.
5473 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5475 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5476 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5477 using the passed key: if the passed key was a private key the result
5478 of X509_print(), for example, would be to print out all the private key
5482 *) des_quad_cksum() byte order bug fix.
5483 [Ulf Möller, using the problem description in krb4-0.9.7, where
5484 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5486 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5488 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5490 *) For easily testing in shell scripts whether some command
5491 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5492 returns with exit code 0 iff no command of the given name is available.
5493 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5494 the output goes to stdout and nothing is printed to stderr.
5495 Additional arguments are always ignored.
5497 Since for each cipher there is a command of the same name,
5498 the 'no-cipher' compilation switches can be tested this way.
5500 ('openssl no-XXX' is not able to detect pseudo-commands such
5501 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5504 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5507 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5508 is set; it will be thrown away anyway because each handshake creates
5510 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5511 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5512 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5513 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5516 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5517 'Q' and 'R' lose their special meanings (quit/renegotiate).
5518 This is part of what -quiet does; unlike -quiet, -ign_eof
5519 does not suppress any output.
5522 *) Add compatibility options to the purpose and trust code. The
5523 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5524 accepts a certificate or CA, this was the previous behaviour,
5525 with all the associated security issues.
5527 X509_TRUST_COMPAT is the old trust behaviour: only and
5528 automatically trust self signed roots in certificate store. A
5529 new trust setting X509_TRUST_DEFAULT is used to specify that
5530 a purpose has no associated trust setting and it should instead
5531 use the value in the default purpose.
5534 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5535 and fix a memory leak.
5538 *) In util/mkerr.pl (which implements 'make errors'), preserve
5539 reason strings from the previous version of the .c file, as
5540 the default to have only downcase letters (and digits) in
5541 automatically generated reasons codes is not always appropriate.
5544 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5545 using strerror. Previously, ERR_reason_error_string() returned
5546 library names as reason strings for SYSerr; but SYSerr is a special
5547 case where small numbers are errno values, not library numbers.
5550 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5551 converts DSA parameters into DH parameters. (When creating parameters,
5552 DSA_generate_parameters is used.)
5555 *) Include 'length' (recommended exponent length) in C code generated
5556 by 'openssl dhparam -C'.
5559 *) The second argument to set_label in perlasm was already being used
5560 so couldn't be used as a "file scope" flag. Moved to third argument
5564 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5565 instead of RAND_bytes for encryption IVs and salts.
5568 *) Include RAND_status() into RAND_METHOD instead of implementing
5569 it only for md_rand.c Otherwise replacing the PRNG by calling
5570 RAND_set_rand_method would be impossible.
5573 *) Don't let DSA_generate_key() enter an infinite loop if the random
5574 number generation fails.
5577 *) New 'rand' application for creating pseudo-random output.
5580 *) Added configuration support for Linux/IA64
5581 [Rolf Haberrecker <rolf@suse.de>]
5583 *) Assembler module support for Mingw32.
5586 *) Shared library support for HPUX (in shlib/).
5587 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5589 *) Shared library support for Solaris gcc.
5590 [Lutz Behnke <behnke@trustcenter.de>]
5592 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5594 *) PKCS7_encrypt() was adding text MIME headers twice because they
5595 were added manually and by SMIME_crlf_copy().
5598 *) In bntest.c don't call BN_rand with zero bits argument.
5599 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5601 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5602 case was implemented. This caused BN_div_recp() to fail occasionally.
5605 *) Add an optional second argument to the set_label() in the perl
5606 assembly language builder. If this argument exists and is set
5607 to 1 it signals that the assembler should use a symbol whose
5608 scope is the entire file, not just the current function. This
5609 is needed with MASM which uses the format label:: for this scope.
5610 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5612 *) Change the ASN1 types so they are typedefs by default. Before
5613 almost all types were #define'd to ASN1_STRING which was causing
5614 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5618 *) Change names of new functions to the new get1/get0 naming
5619 convention: After 'get1', the caller owns a reference count
5620 and has to call ..._free; 'get0' returns a pointer to some
5621 data structure without incrementing reference counters.
5622 (Some of the existing 'get' functions increment a reference
5623 counter, some don't.)
5624 Similarly, 'set1' and 'add1' functions increase reference
5625 counters or duplicate objects.
5628 *) Allow for the possibility of temp RSA key generation failure:
5629 the code used to assume it always worked and crashed on failure.
5632 *) Fix potential buffer overrun problem in BIO_printf().
5633 [Ulf Möller, using public domain code by Patrick Powell; problem
5634 pointed out by David Sacerdote <das33@cornell.edu>]
5636 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5637 RAND_egd() and RAND_status(). In the command line application,
5638 the EGD socket can be specified like a seed file using RANDFILE
5642 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5643 Some CAs (e.g. Verisign) distribute certificates in this form.
5646 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5647 list to exclude them. This means that no special compilation option
5648 is needed to use anonymous DH: it just needs to be included in the
5652 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5653 EVP_MD_type. The old functionality is available in a new macro called
5654 EVP_MD_md(). Change code that uses it and update docs.
5657 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5658 where the 'void *' argument is replaced by a function pointer argument.
5659 Previously 'void *' was abused to point to functions, which works on
5660 many platforms, but is not correct. As these functions are usually
5661 called by macros defined in OpenSSL header files, most source code
5662 should work without changes.
5665 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5666 sections with information on -D... compiler switches used for
5667 compiling the library so that applications can see them. To enable
5668 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5669 must be defined. E.g.,
5670 #define OPENSSL_ALGORITHM_DEFINES
5671 #include <openssl/opensslconf.h>
5672 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5673 [Richard Levitte, Ulf and Bodo Möller]
5675 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5679 *) Change the 'other' type in certificate aux info to a STACK_OF
5680 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5681 the required ASN1 format: arbitrary types determined by an OID.
5684 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5685 argument to 'req'. This is not because the function is newer or
5686 better than others it just uses the work 'NEW' in the certificate
5687 request header lines. Some software needs this.
5690 *) Reorganise password command line arguments: now passwords can be
5691 obtained from various sources. Delete the PEM_cb function and make
5692 it the default behaviour: i.e. if the callback is NULL and the
5693 usrdata argument is not NULL interpret it as a null terminated pass
5694 phrase. If usrdata and the callback are NULL then the pass phrase
5695 is prompted for as usual.
5698 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5699 the support is automatically enabled. The resulting binaries will
5700 autodetect the card and use it if present.
5701 [Ben Laurie and Compaq Inc.]
5703 *) Work around for Netscape hang bug. This sends certificate request
5704 and server done in one record. Since this is perfectly legal in the
5705 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5706 the bugs/SSLv3 entry for more info.
5709 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5712 *) Add -rand argument to smime and pkcs12 applications and read/write
5716 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5719 *) Add command line password options to the remaining applications.
5722 *) Bug fix for BN_div_recp() for numerators with an even number of
5726 *) More tests in bntest.c, and changed test_bn output.
5729 *) ./config recognizes MacOS X now.
5732 *) Bug fix for BN_div() when the first words of num and divsor are
5733 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5736 *) Add support for various broken PKCS#8 formats, and command line
5737 options to produce them.
5740 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5741 get temporary BIGNUMs from a BN_CTX.
5744 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5748 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5749 include a #define from the old name to the new. The original intent
5750 was that statically linked binaries could for example just call
5751 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5752 link with digests. This never worked becayse SSLeay_add_all_digests()
5753 and SSLeay_add_all_ciphers() were in the same source file so calling
5754 one would link with the other. They are now in separate source files.
5757 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5760 *) Use a less unusual form of the Miller-Rabin primality test (it used
5761 a binary algorithm for exponentiation integrated into the Miller-Rabin
5762 loop, our standard modexp algorithms are faster).
5765 *) Support for the EBCDIC character set completed.
5766 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5768 *) Source code cleanups: use const where appropriate, eliminate casts,
5769 use void * instead of char * in lhash.
5772 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5773 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5774 this the server could overwrite ephemeral keys that the client
5778 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5779 using 50 iterations of the Rabin-Miller test.
5781 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5782 iterations of the Rabin-Miller test as required by the appendix
5783 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5784 As BN_is_prime_fasttest includes trial division, DSA parameter
5785 generation becomes much faster.
5787 This implies a change for the callback functions in DSA_is_prime
5788 and DSA_generate_parameters: The callback function is called once
5789 for each positive witness in the Rabin-Miller test, not just
5790 occasionally in the inner loop; and the parameters to the
5791 callback function now provide an iteration count for the outer
5792 loop rather than for the current invocation of the inner loop.
5793 DSA_generate_parameters additionally can call the callback
5794 function with an 'iteration count' of -1, meaning that a
5795 candidate has passed the trial division test (when q is generated
5796 from an application-provided seed, trial division is skipped).
5799 *) New function BN_is_prime_fasttest that optionally does trial
5800 division before starting the Rabin-Miller test and has
5801 an additional BN_CTX * argument (whereas BN_is_prime always
5802 has to allocate at least one BN_CTX).
5803 'callback(1, -1, cb_arg)' is called when a number has passed the
5804 trial division stage.
5807 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5811 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5814 *) New function BN_pseudo_rand().
5817 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5818 bignum version of BN_from_montgomery() with the working code from
5819 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5823 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5824 made it impossible to use the same SSL_SESSION data structure in
5825 SSL2 clients in multiple threads.
5828 *) The return value of RAND_load_file() no longer counts bytes obtained
5829 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5830 to seed the PRNG (previously an explicit byte count was required).
5831 [Ulf Möller, Bodo Möller]
5833 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5834 used (char *) instead of (void *) and had casts all over the place.
5837 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5840 *) Retain source code compatibility for BN_prime_checks macro:
5841 BN_is_prime(..., BN_prime_checks, ...) now uses
5842 BN_prime_checks_for_size to determine the appropriate number of
5843 Rabin-Miller iterations.
5846 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5847 DH_CHECK_P_NOT_SAFE_PRIME.
5848 (Check if this is true? OpenPGP calls them "strong".)
5851 *) Merge the functionality of "dh" and "gendh" programs into a new program
5852 "dhparam". The old programs are retained for now but will handle DH keys
5853 (instead of parameters) in future.
5856 *) Make the ciphers, s_server and s_client programs check the return values
5857 when a new cipher list is set.
5860 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5861 ciphers. Before when the 56bit ciphers were enabled the sorting was
5864 The syntax for the cipher sorting has been extended to support sorting by
5865 cipher-strength (using the strength_bits hard coded in the tables).
5866 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5868 Fix a bug in the cipher-command parser: when supplying a cipher command
5869 string with an "undefined" symbol (neither command nor alphanumeric
5870 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5871 an error is flagged.
5873 Due to the strength-sorting extension, the code of the
5874 ssl_create_cipher_list() function was completely rearranged. I hope that
5875 the readability was also increased :-)
5876 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5878 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5879 for the first serial number and places 2 in the serial number file. This
5880 avoids problems when the root CA is created with serial number zero and
5881 the first user certificate has the same issuer name and serial number
5885 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5886 the new code. Add documentation for this stuff.
5889 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5890 X509_*() to X509at_*() on the grounds that they don't handle X509
5891 structures and behave in an analagous way to the X509v3 functions:
5892 they shouldn't be called directly but wrapper functions should be used
5895 So we also now have some wrapper functions that call the X509at functions
5896 when passed certificate requests. (TO DO: similar things can be done with
5897 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5898 things. Some of these need some d2i or i2d and print functionality
5899 because they handle more complex structures.)
5902 *) Add missing #ifndefs that caused missing symbols when building libssl
5903 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5904 NO_RSA in ssl/s2*.c.
5905 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5907 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5908 has a return value which indicates the quality of the random data
5909 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5910 error queue. New function RAND_pseudo_bytes() generates output that is
5911 guaranteed to be unique but not unpredictable. RAND_add is like
5912 RAND_seed, but takes an extra argument for an entropy estimate
5913 (RAND_seed always assumes full entropy).
5916 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5917 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5918 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5919 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5920 false-positive rate of at most 2^-80 for random input.
5923 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5926 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5927 in the 0.9.5 release), this returns the chain
5928 from an X509_CTX structure with a dup of the stack and all
5929 the X509 reference counts upped: so the stack will exist
5930 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5933 Also make SSL_SESSION_print() print out the verify return
5937 *) Add manpage for the pkcs12 command. Also change the default
5938 behaviour so MAC iteration counts are used unless the new
5939 -nomaciter option is used. This improves file security and
5940 only older versions of MSIE (4.0 for example) need it.
5943 *) Honor the no-xxx Configure options when creating .DEF files.
5946 *) Add PKCS#10 attributes to field table: challengePassword,
5947 unstructuredName and unstructuredAddress. These are taken from
5948 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5949 international characters are used.
5951 More changes to X509_ATTRIBUTE code: allow the setting of types
5952 based on strings. Remove the 'loc' parameter when adding
5953 attributes because these will be a SET OF encoding which is sorted
5957 *) Initial changes to the 'req' utility to allow request generation
5958 automation. This will allow an application to just generate a template
5959 file containing all the field values and have req construct the
5962 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5963 used all over the place including certificate requests and PKCS#7
5964 structures. They are currently handled manually where necessary with
5965 some primitive wrappers for PKCS#7. The new functions behave in a
5966 manner analogous to the X509 extension functions: they allow
5967 attributes to be looked up by NID and added.
5969 Later something similar to the X509V3 code would be desirable to
5970 automatically handle the encoding, decoding and printing of the
5971 more complex types. The string types like challengePassword can
5972 be handled by the string table functions.
5974 Also modified the multi byte string table handling. Now there is
5975 a 'global mask' which masks out certain types. The table itself
5976 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5977 is useful when for example there is only one permissible type
5978 (as in countryName) and using the mask might result in no valid
5982 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5983 SSL_get_peer_finished to allow applications to obtain the latest
5984 Finished messages sent to the peer or expected from the peer,
5985 respectively. (SSL_get_peer_finished is usually the Finished message
5986 actually received from the peer, otherwise the protocol will be aborted.)
5988 As the Finished message are message digests of the complete handshake
5989 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5990 be used for external authentication procedures when the authentication
5991 provided by SSL/TLS is not desired or is not enough.
5994 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5995 the host supports BWX extension and if Compaq C is present on the
5996 $PATH. Just exploiting of the BWX extension results in 20-30%
5997 performance kick for some algorithms, e.g. DES and RC4 to mention
5998 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6002 *) Add support for MS "fast SGC". This is arguably a violation of the
6003 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6004 weak crypto and after checking the certificate is SGC a second one
6005 with strong crypto. MS SGC stops the first handshake after receiving
6006 the server certificate message and sends a second client hello. Since
6007 a server will typically do all the time consuming operations before
6008 expecting any further messages from the client (server key exchange
6009 is the most expensive) there is little difference between the two.
6011 To get OpenSSL to support MS SGC we have to permit a second client
6012 hello message after we have sent server done. In addition we have to
6013 reset the MAC if we do get this second client hello.
6016 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6017 if a DER encoded private key is RSA or DSA traditional format. Changed
6018 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6019 format DER encoded private key. Newer code should use PKCS#8 format which
6020 has the key type encoded in the ASN1 structure. Added DER private key
6021 support to pkcs8 application.
6024 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6025 ciphersuites has been selected (as required by the SSL 3/TLS 1
6026 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6027 is set, we interpret this as a request to violate the specification
6028 (the worst that can happen is a handshake failure, and 'correct'
6029 behaviour would result in a handshake failure anyway).
6032 *) In SSL_CTX_add_session, take into account that there might be multiple
6033 SSL_SESSION structures with the same session ID (e.g. when two threads
6034 concurrently obtain them from an external cache).
6035 The internal cache can handle only one SSL_SESSION with a given ID,
6036 so if there's a conflict, we now throw out the old one to achieve
6040 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6041 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6042 some routines that use cipher OIDs: some ciphers do not have OIDs
6043 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6047 *) Simplify the trust setting structure and code. Now we just have
6048 two sequences of OIDs for trusted and rejected settings. These will
6049 typically have values the same as the extended key usage extension
6050 and any application specific purposes.
6052 The trust checking code now has a default behaviour: it will just
6053 check for an object with the same NID as the passed id. Functions can
6054 be provided to override either the default behaviour or the behaviour
6055 for a given id. SSL client, server and email already have functions
6056 in place for compatibility: they check the NID and also return "trusted"
6057 if the certificate is self signed.
6060 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6061 traditional format into an EVP_PKEY structure.
6064 *) Add a password callback function PEM_cb() which either prompts for
6065 a password if usr_data is NULL or otherwise assumes it is a null
6066 terminated password. Allow passwords to be passed on command line
6067 environment or config files in a few more utilities.
6070 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6071 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6072 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6073 Update documentation.
6076 *) Support for ASN1 "NULL" type. This could be handled before by using
6077 ASN1_TYPE but there wasn't any function that would try to read a NULL
6078 and produce an error if it couldn't. For compatibility we also have
6079 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6080 don't allocate anything because they don't need to.
6083 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6085 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6087 *) Rebuild of the memory allocation routines used by OpenSSL code and
6088 possibly others as well. The purpose is to make an interface that
6089 provide hooks so anyone can build a separate set of allocation and
6090 deallocation routines to be used by OpenSSL, for example memory
6091 pool implementations, or something else, which was previously hard
6092 since Malloc(), Realloc() and Free() were defined as macros having
6093 the values malloc, realloc and free, respectively (except for Win32
6094 compilations). The same is provided for memory debugging code.
6095 OpenSSL already comes with functionality to find memory leaks, but
6096 this gives people a chance to debug other memory problems.
6098 With these changes, a new set of functions and macros have appeared:
6100 CRYPTO_set_mem_debug_functions() [F]
6101 CRYPTO_get_mem_debug_functions() [F]
6102 CRYPTO_dbg_set_options() [F]
6103 CRYPTO_dbg_get_options() [F]
6104 CRYPTO_malloc_debug_init() [M]
6106 The memory debug functions are NULL by default, unless the library
6107 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6108 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6109 gives the standard debugging functions that come with OpenSSL) or
6110 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6111 provided by the library user) must be used. When the standard
6112 debugging functions are used, CRYPTO_dbg_set_options can be used to
6113 request additional information:
6114 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6115 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6117 Also, things like CRYPTO_set_mem_functions will always give the
6118 expected result (the new set of functions is used for allocation
6119 and deallocation) at all times, regardless of platform and compiler
6122 To finish it up, some functions that were never use in any other
6123 way than through macros have a new API and new semantic:
6126 CRYPTO_dbg_realloc()
6129 All macros of value have retained their old syntax.
6130 [Richard Levitte and Bodo Moeller]
6132 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6133 ordering of SMIMECapabilities wasn't in "strength order" and there
6134 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6138 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6139 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6140 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6142 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6143 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6144 functionality to handle multipart/signed properly) and a utility
6145 called 'smime' to call all this stuff. This is based on code I
6146 originally wrote for Celo who have kindly allowed it to be
6147 included in OpenSSL.
6150 *) Add variants des_set_key_checked and des_set_key_unchecked of
6151 des_set_key (aka des_key_sched). Global variable des_check_key
6152 decides which of these is called by des_set_key; this way
6153 des_check_key behaves as it always did, but applications and
6154 the library itself, which was buggy for des_check_key == 1,
6155 have a cleaner way to pick the version they need.
6158 *) New function PKCS12_newpass() which changes the password of a
6162 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6163 dynamic mix. In both cases the ids can be used as an index into the
6164 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6165 functions so they accept a list of the field values and the
6166 application doesn't need to directly manipulate the X509_TRUST
6170 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6174 *) Modify the way the V3 extension code looks up extensions. This now
6175 works in a similar way to the object code: we have some "standard"
6176 extensions in a static table which is searched with OBJ_bsearch()
6177 and the application can add dynamic ones if needed. The file
6178 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6179 updated whenever a new extension is added to the core code and kept
6180 in ext_nid order. There is a simple program 'tabtest.c' which checks
6181 this. New extensions are not added too often so this file can readily
6182 be maintained manually.
6184 There are two big advantages in doing things this way. The extensions
6185 can be looked up immediately and no longer need to be "added" using
6186 X509V3_add_standard_extensions(): this function now does nothing.
6187 [Side note: I get *lots* of email saying the extension code doesn't
6188 work because people forget to call this function]
6189 Also no dynamic allocation is done unless new extensions are added:
6190 so if we don't add custom extensions there is no need to call
6191 X509V3_EXT_cleanup().
6194 *) Modify enc utility's salting as follows: make salting the default. Add a
6195 magic header, so unsalted files fail gracefully instead of just decrypting
6196 to garbage. This is because not salting is a big security hole, so people
6197 should be discouraged from doing it.
6200 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6201 digest to be passed on the command line but it only used this
6202 parameter when signing a certificate. Modified so all relevant
6203 operations are affected by the digest parameter including the
6204 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6205 DSA key was used because it didn't fix the digest.
6208 *) Initial certificate chain verify code. Currently tests the untrusted
6209 certificates for consistency with the verify purpose (which is set
6210 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6212 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6213 this is because it will reject chains with invalid extensions whereas
6214 every previous version of OpenSSL and SSLeay made no checks at all.
6216 Trust code: checks the root CA for the relevant trust settings. Trust
6217 settings have an initial value consistent with the verify purpose: e.g.
6218 if the verify purpose is for SSL client use it expects the CA to be
6219 trusted for SSL client use. However the default value can be changed to
6220 permit custom trust settings: one example of this would be to only trust
6221 certificates from a specific "secure" set of CAs.
6223 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6224 which should be used for version portability: especially since the
6225 verify structure is likely to change more often now.
6227 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6228 to set them. If not set then assume SSL clients will verify SSL servers
6231 Two new options to the verify program: -untrusted allows a set of
6232 untrusted certificates to be passed in and -purpose which sets the
6233 intended purpose of the certificate. If a purpose is set then the
6234 new chain verify code is used to check extension consistency.
6237 *) Support for the authority information access extension.
6240 *) Modify RSA and DSA PEM read routines to transparently handle
6241 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6242 public keys in a format compatible with certificate
6243 SubjectPublicKeyInfo structures. Unfortunately there were already
6244 functions called *_PublicKey_* which used various odd formats so
6245 these are retained for compatibility: however the DSA variants were
6246 never in a public release so they have been deleted. Changed dsa/rsa
6247 utilities to handle the new format: note no releases ever handled public
6248 keys so we should be OK.
6250 The primary motivation for this change is to avoid the same fiasco
6251 that dogs private keys: there are several incompatible private key
6252 formats some of which are standard and some OpenSSL specific and
6253 require various evil hacks to allow partial transparent handling and
6254 even then it doesn't work with DER formats. Given the option anything
6255 other than PKCS#8 should be dumped: but the other formats have to
6256 stay in the name of compatibility.
6258 With public keys and the benefit of hindsight one standard format
6259 is used which works with EVP_PKEY, RSA or DSA structures: though
6260 it clearly returns an error if you try to read the wrong kind of key.
6262 Added a -pubkey option to the 'x509' utility to output the public key.
6263 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6264 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6265 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6266 that do the same as the EVP_PKEY_assign_*() except they up the
6267 reference count of the added key (they don't "swallow" the
6271 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6272 CRLs would fail if the file contained no certificates or no CRLs:
6273 added a new function to read in both types and return the number
6274 read: this means that if none are read it will be an error. The
6275 DER versions of the certificate and CRL reader would always fail
6276 because it isn't possible to mix certificates and CRLs in DER format
6277 without choking one or the other routine. Changed this to just read
6278 a certificate: this is the best we can do. Also modified the code
6279 in apps/verify.c to take notice of return codes: it was previously
6280 attempting to read in certificates from NULL pointers and ignoring
6281 any errors: this is one reason why the cert and CRL reader seemed
6282 to work. It doesn't check return codes from the default certificate
6283 routines: these may well fail if the certificates aren't installed.
6286 *) Code to support otherName option in GeneralName.
6289 *) First update to verify code. Change the verify utility
6290 so it warns if it is passed a self signed certificate:
6291 for consistency with the normal behaviour. X509_verify
6292 has been modified to it will now verify a self signed
6293 certificate if *exactly* the same certificate appears
6294 in the store: it was previously impossible to trust a
6295 single self signed certificate. This means that:
6296 openssl verify ss.pem
6297 now gives a warning about a self signed certificate but
6298 openssl verify -CAfile ss.pem ss.pem
6302 *) For servers, store verify_result in SSL_SESSION data structure
6303 (and add it to external session representation).
6304 This is needed when client certificate verifications fails,
6305 but an application-provided verification callback (set by
6306 SSL_CTX_set_cert_verify_callback) allows accepting the session
6307 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6308 but returns 1): When the session is reused, we have to set
6309 ssl->verify_result to the appropriate error code to avoid
6311 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6313 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6314 case in PKCS7_dataInit() where the signed PKCS7 structure
6315 didn't contain any existing data because it was being created.
6316 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6318 *) Add a salt to the key derivation routines in enc.c. This
6319 forms the first 8 bytes of the encrypted file. Also add a
6320 -S option to allow a salt to be input on the command line.
6323 *) New function X509_cmp(). Oddly enough there wasn't a function
6324 to compare two certificates. We do this by working out the SHA1
6325 hash and comparing that. X509_cmp() will be needed by the trust
6329 *) SSL_get1_session() is like SSL_get_session(), but increments
6330 the reference count in the SSL_SESSION returned.
6331 [Geoff Thorpe <geoff@eu.c2.net>]
6333 *) Fix for 'req': it was adding a null to request attributes.
6334 Also change the X509_LOOKUP and X509_INFO code to handle
6335 certificate auxiliary information.
6338 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6342 *) Add the possibility to add extra information to the memory leak
6343 detecting output, to form tracebacks, showing from where each
6344 allocation was originated: CRYPTO_push_info("constant string") adds
6345 the string plus current file name and line number to a per-thread
6346 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6347 is like calling CYRPTO_pop_info() until the stack is empty.
6348 Also updated memory leak detection code to be multi-thread-safe.
6351 *) Add options -text and -noout to pkcs7 utility and delete the
6352 encryption options which never did anything. Update docs.
6355 *) Add options to some of the utilities to allow the pass phrase
6356 to be included on either the command line (not recommended on
6357 OSes like Unix) or read from the environment. Update the
6358 manpages and fix a few bugs.
6361 *) Add a few manpages for some of the openssl commands.
6364 *) Fix the -revoke option in ca. It was freeing up memory twice,
6365 leaking and not finding already revoked certificates.
6368 *) Extensive changes to support certificate auxiliary information.
6369 This involves the use of X509_CERT_AUX structure and X509_AUX
6370 functions. An X509_AUX function such as PEM_read_X509_AUX()
6371 can still read in a certificate file in the usual way but it
6372 will also read in any additional "auxiliary information". By
6373 doing things this way a fair degree of compatibility can be
6374 retained: existing certificates can have this information added
6375 using the new 'x509' options.
6377 Current auxiliary information includes an "alias" and some trust
6378 settings. The trust settings will ultimately be used in enhanced
6379 certificate chain verification routines: currently a certificate
6380 can only be trusted if it is self signed and then it is trusted
6384 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6385 The problem was that one of the replacement routines had not been working
6386 since SSLeay releases. For now the offending routine has been replaced
6387 with non-optimised assembler. Even so, this now gives around 95%
6388 performance improvement for 1024 bit RSA signs.
6391 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6392 handling. Most clients have the effective key size in bits equal to
6393 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6394 A few however don't do this and instead use the size of the decrypted key
6395 to determine the RC2 key length and the AlgorithmIdentifier to determine
6396 the effective key length. In this case the effective key length can still
6397 be 40 bits but the key length can be 168 bits for example. This is fixed
6398 by manually forcing an RC2 key into the EVP_PKEY structure because the
6399 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6400 the key length and effective key length are equal.
6403 *) Add a bunch of functions that should simplify the creation of
6404 X509_NAME structures. Now you should be able to do:
6405 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6406 and have it automatically work out the correct field type and fill in
6407 the structures. The more adventurous can try:
6408 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6409 and it will (hopefully) work out the correct multibyte encoding.
6412 *) Change the 'req' utility to use the new field handling and multibyte
6413 copy routines. Before the DN field creation was handled in an ad hoc
6414 way in req, ca, and x509 which was rather broken and didn't support
6415 BMPStrings or UTF8Strings. Since some software doesn't implement
6416 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6417 using the dirstring_type option. See the new comment in the default
6418 openssl.cnf for more info.
6421 *) Make crypto/rand/md_rand.c more robust:
6422 - Assure unique random numbers after fork().
6423 - Make sure that concurrent threads access the global counter and
6424 md serializably so that we never lose entropy in them
6425 or use exactly the same state in multiple threads.
6426 Access to the large state is not always serializable because
6427 the additional locking could be a performance killer, and
6428 md should be large enough anyway.
6431 *) New file apps/app_rand.c with commonly needed functionality
6432 for handling the random seed file.
6434 Use the random seed file in some applications that previously did not:
6436 dsaparam -genkey (which also ignored its '-rand' option),
6439 x509 (when signing).
6440 Except on systems with /dev/urandom, it is crucial to have a random
6441 seed file at least for key creation, DSA signing, and for DH exchanges;
6442 for RSA signatures we could do without one.
6444 gendh and gendsa (unlike genrsa) used to read only the first byte
6445 of each file listed in the '-rand' option. The function as previously
6446 found in genrsa is now in app_rand.c and is used by all programs
6447 that support '-rand'.
6450 *) In RAND_write_file, use mode 0600 for creating files;
6451 don't just chmod when it may be too late.
6454 *) Report an error from X509_STORE_load_locations
6455 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6458 *) New function ASN1_mbstring_copy() this copies a string in either
6459 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6460 into an ASN1_STRING type. A mask of permissible types is passed
6461 and it chooses the "minimal" type to use or an error if not type
6465 *) Add function equivalents to the various macros in asn1.h. The old
6466 macros are retained with an M_ prefix. Code inside the library can
6467 use the M_ macros. External code (including the openssl utility)
6468 should *NOT* in order to be "shared library friendly".
6471 *) Add various functions that can check a certificate's extensions
6472 to see if it usable for various purposes such as SSL client,
6473 server or S/MIME and CAs of these types. This is currently
6474 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6475 verification. Also added a -purpose flag to x509 utility to
6476 print out all the purposes.
6479 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6483 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6484 for, obtain and decode and extension and obtain its critical flag.
6485 This allows all the necessary extension code to be handled in a
6486 single function call.
6489 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6490 platforms. See crypto/rc4/rc4_enc.c for further details.
6493 *) New -noout option to asn1parse. This causes no output to be produced
6494 its main use is when combined with -strparse and -out to extract data
6495 from a file (which may not be in ASN.1 format).
6498 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6499 when producing the local key id.
6500 [Richard Levitte <levitte@stacken.kth.se>]
6502 *) New option -dhparam in s_server. This allows a DH parameter file to be
6503 stated explicitly. If it is not stated then it tries the first server
6504 certificate file. The previous behaviour hard coded the filename
6508 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6509 a public key to be input or output. For example:
6510 openssl rsa -in key.pem -pubout -out pubkey.pem
6511 Also added necessary DSA public key functions to handle this.
6514 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6515 in the message. This was handled by allowing
6516 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6517 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6519 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6520 to the end of the strings whereas this didn't. This would cause problems
6521 if strings read with d2i_ASN1_bytes() were later modified.
6522 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6524 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6525 data and it contains EOF it will end up returning an error. This is
6526 caused by input 46 bytes long. The cause is due to the way base64
6527 BIOs find the start of base64 encoded data. They do this by trying a
6528 trial decode on each line until they find one that works. When they
6529 do a flag is set and it starts again knowing it can pass all the
6530 data directly through the decoder. Unfortunately it doesn't reset
6531 the context it uses. This means that if EOF is reached an attempt
6532 is made to pass two EOFs through the context and this causes the
6533 resulting error. This can also cause other problems as well. As is
6534 usual with these problems it takes *ages* to find and the fix is
6535 trivial: move one line.
6536 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6538 *) Ugly workaround to get s_client and s_server working under Windows. The
6539 old code wouldn't work because it needed to select() on sockets and the
6540 tty (for keypresses and to see if data could be written). Win32 only
6541 supports select() on sockets so we select() with a 1s timeout on the
6542 sockets and then see if any characters are waiting to be read, if none
6543 are present then we retry, we also assume we can always write data to
6544 the tty. This isn't nice because the code then blocks until we've
6545 received a complete line of data and it is effectively polling the
6546 keyboard at 1s intervals: however it's quite a bit better than not
6547 working at all :-) A dedicated Windows application might handle this
6548 with an event loop for example.
6551 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6552 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6553 will be called when RSA_sign() and RSA_verify() are used. This is useful
6554 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6555 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6556 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6557 This necessitated the support of an extra signature type NID_md5_sha1
6558 for SSL signatures and modifications to the SSL library to use it instead
6559 of calling RSA_public_decrypt() and RSA_private_encrypt().
6562 *) Add new -verify -CAfile and -CApath options to the crl program, these
6563 will lookup a CRL issuers certificate and verify the signature in a
6564 similar way to the verify program. Tidy up the crl program so it
6565 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6566 less strict. It will now permit CRL extensions even if it is not
6567 a V2 CRL: this will allow it to tolerate some broken CRLs.
6570 *) Initialize all non-automatic variables each time one of the openssl
6571 sub-programs is started (this is necessary as they may be started
6572 multiple times from the "OpenSSL>" prompt).
6573 [Lennart Bang, Bodo Moeller]
6575 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6576 removing all other RSA functionality (this is what NO_RSA does). This
6577 is so (for example) those in the US can disable those operations covered
6578 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6582 *) Non-copying interface to BIO pairs.
6583 (still largely untested)
6586 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6587 ASCII string. This was handled independently in various places before.
6590 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6591 UTF8 strings a character at a time.
6594 *) Use client_version from client hello to select the protocol
6595 (s23_srvr.c) and for RSA client key exchange verification
6596 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6599 *) Add various utility functions to handle SPKACs, these were previously
6600 handled by poking round in the structure internals. Added new function
6601 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6602 print, verify and generate SPKACs. Based on an original idea from
6603 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6606 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6609 *) Allow the config file extension section to be overwritten on the
6610 command line. Based on an original idea from Massimiliano Pala
6611 <madwolf@comune.modena.it>. The new option is called -extensions
6612 and can be applied to ca, req and x509. Also -reqexts to override
6613 the request extensions in req and -crlexts to override the crl extensions
6617 *) Add new feature to the SPKAC handling in ca. Now you can include
6618 the same field multiple times by preceding it by "XXXX." for example:
6621 this is the same syntax as used in the req config file.
6624 *) Allow certificate extensions to be added to certificate requests. These
6625 are specified in a 'req_extensions' option of the req section of the
6626 config file. They can be printed out with the -text option to req but
6627 are otherwise ignored at present.
6630 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6631 data read consists of only the final block it would not decrypted because
6632 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6633 A misplaced 'break' also meant the decrypted final block might not be
6634 copied until the next read.
6637 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6638 a few extra parameters to the DH structure: these will be useful if
6639 for example we want the value of 'q' or implement X9.42 DH.
6642 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6643 provides hooks that allow the default DSA functions or functions on a
6644 "per key" basis to be replaced. This allows hardware acceleration and
6645 hardware key storage to be handled without major modification to the
6646 library. Also added low level modexp hooks and CRYPTO_EX structure and
6647 associated functions.
6650 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6651 as "read only": it can't be written to and the buffer it points to will
6652 not be freed. Reading from a read only BIO is much more efficient than
6653 a normal memory BIO. This was added because there are several times when
6654 an area of memory needs to be read from a BIO. The previous method was
6655 to create a memory BIO and write the data to it, this results in two
6656 copies of the data and an O(n^2) reading algorithm. There is a new
6657 function BIO_new_mem_buf() which creates a read only memory BIO from
6658 an area of memory. Also modified the PKCS#7 routines to use read only
6662 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6663 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6664 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6665 but a retry condition occured while trying to read the rest.
6668 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6669 NID_pkcs7_encrypted by default: this was wrong since this should almost
6670 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6671 the encrypted data type: this is a more sensible place to put it and it
6672 allows the PKCS#12 code to be tidied up that duplicated this
6676 *) Changed obj_dat.pl script so it takes its input and output files on
6677 the command line. This should avoid shell escape redirection problems
6681 *) Initial support for certificate extension requests, these are included
6682 in things like Xenroll certificate requests. Included functions to allow
6683 extensions to be obtained and added.
6686 *) -crlf option to s_client and s_server for sending newlines as
6687 CRLF (as required by many protocols).
6690 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6692 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6693 [Ralf S. Engelschall]
6695 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6696 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6698 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6702 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6703 DH parameters/keys (q is lost during that conversion, but the resulting
6704 DH parameters contain its length).
6706 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6707 much faster than DH_generate_parameters (which creates parameters
6708 where p = 2*q + 1), and also the smaller q makes DH computations
6709 much more efficient (160-bit exponentiation instead of 1024-bit
6710 exponentiation); so this provides a convenient way to support DHE
6711 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6712 utter importance to use
6713 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6715 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6716 when such DH parameters are used, because otherwise small subgroup
6717 attacks may become possible!
6720 *) Avoid memory leak in i2d_DHparams.
6723 *) Allow the -k option to be used more than once in the enc program:
6724 this allows the same encrypted message to be read by multiple recipients.
6727 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6728 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6729 it will always use the numerical form of the OID, even if it has a short
6733 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6734 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6735 otherwise bn_mod_exp was called. In the case of hardware keys for example
6736 no private key components need be present and it might store extra data
6737 in the RSA structure, which cannot be accessed from bn_mod_exp.
6738 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6739 private key operations.
6742 *) Added support for SPARC Linux.
6745 *) pem_password_cb function type incompatibly changed from
6746 typedef int pem_password_cb(char *buf, int size, int rwflag);
6748 ....(char *buf, int size, int rwflag, void *userdata);
6749 so that applications can pass data to their callbacks:
6750 The PEM[_ASN1]_{read,write}... functions and macros now take an
6751 additional void * argument, which is just handed through whenever
6752 the password callback is called.
6753 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6755 New function SSL_CTX_set_default_passwd_cb_userdata.
6757 Compatibility note: As many C implementations push function arguments
6758 onto the stack in reverse order, the new library version is likely to
6759 interoperate with programs that have been compiled with the old
6760 pem_password_cb definition (PEM_whatever takes some data that
6761 happens to be on the stack as its last argument, and the callback
6762 just ignores this garbage); but there is no guarantee whatsoever that
6765 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6766 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6767 problems not only on Windows, but also on some Unix platforms.
6768 To avoid problematic command lines, these definitions are now in an
6769 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6770 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6773 *) MIPS III/IV assembler module is reimplemented.
6776 *) More DES library cleanups: remove references to srand/rand and
6777 delete an unused file.
6780 *) Add support for the the free Netwide assembler (NASM) under Win32,
6781 since not many people have MASM (ml) and it can be hard to obtain.
6782 This is currently experimental but it seems to work OK and pass all
6783 the tests. Check out INSTALL.W32 for info.
6786 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6787 without temporary keys kept an extra copy of the server key,
6788 and connections with temporary keys did not free everything in case
6792 *) New function RSA_check_key and new openssl rsa option -check
6793 for verifying the consistency of RSA keys.
6794 [Ulf Moeller, Bodo Moeller]
6796 *) Various changes to make Win32 compile work:
6797 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6798 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6799 comparison" warnings.
6800 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6803 *) Add a debugging option to PKCS#5 v2 key generation function: when
6804 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6805 derived keys are printed to stderr.
6808 *) Copy the flags in ASN1_STRING_dup().
6809 [Roman E. Pavlov <pre@mo.msk.ru>]
6811 *) The x509 application mishandled signing requests containing DSA
6812 keys when the signing key was also DSA and the parameters didn't match.
6814 It was supposed to omit the parameters when they matched the signing key:
6815 the verifying software was then supposed to automatically use the CA's
6816 parameters if they were absent from the end user certificate.
6818 Omitting parameters is no longer recommended. The test was also
6819 the wrong way round! This was probably due to unusual behaviour in
6820 EVP_cmp_parameters() which returns 1 if the parameters match.
6821 This meant that parameters were omitted when they *didn't* match and
6822 the certificate was useless. Certificates signed with 'ca' didn't have
6824 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6826 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6827 The interface is as follows:
6828 Applications can use
6829 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6830 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6831 "off" is now the default.
6832 The library internally uses
6833 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6834 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6835 to disable memory-checking temporarily.
6837 Some inconsistent states that previously were possible (and were
6838 even the default) are now avoided.
6840 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6841 with each memory chunk allocated; this is occasionally more helpful
6842 than just having a counter.
6844 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6846 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6850 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6851 which largely parallels "options", but is for changing API behaviour,
6852 whereas "options" are about protocol behaviour.
6853 Initial "mode" flags are:
6855 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6856 a single record has been written.
6857 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6858 retries use the same buffer location.
6859 (But all of the contents must be
6863 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6866 *) Fix problems with no-hmac etc.
6867 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6869 *) New functions RSA_get_default_method(), RSA_set_method() and
6870 RSA_get_method(). These allows replacement of RSA_METHODs without having
6871 to mess around with the internals of an RSA structure.
6874 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6875 Also really enable memory leak checks in openssl.c and in some
6877 [Chad C. Mulligan, Bodo Moeller]
6879 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6880 up the length of negative integers. This has now been simplified to just
6881 store the length when it is first determined and use it later, rather
6882 than trying to keep track of where data is copied and updating it to
6884 [Steve Henson, reported by Brien Wheeler
6885 <bwheeler@authentica-security.com>]
6887 *) Add a new function PKCS7_signatureVerify. This allows the verification
6888 of a PKCS#7 signature but with the signing certificate passed to the
6889 function itself. This contrasts with PKCS7_dataVerify which assumes the
6890 certificate is present in the PKCS#7 structure. This isn't always the
6891 case: certificates can be omitted from a PKCS#7 structure and be
6892 distributed by "out of band" means (such as a certificate database).
6895 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6896 function prototypes in pem.h, also change util/mkdef.pl to add the
6897 necessary function names.
6900 *) mk1mf.pl (used by Windows builds) did not properly read the
6901 options set by Configure in the top level Makefile, and Configure
6902 was not even able to write more than one option correctly.
6903 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6906 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6907 file to be loaded from a BIO or FILE pointer. The BIO version will
6908 for example allow memory BIOs to contain config info.
6911 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6912 Whoever hopes to achieve shared-library compatibility across versions
6913 must use this, not the compile-time macro.
6914 (Exercise 0.9.4: Which is the minimum library version required by
6916 Note: All this applies only to multi-threaded programs, others don't
6920 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6921 through a BIO pair triggered the default case, i.e.
6922 SSLerr(...,SSL_R_UNKNOWN_STATE).
6925 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6926 can use the SSL library even if none of the specific BIOs is
6930 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6931 for the encoded length.
6932 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6934 *) Add initial documentation of the X509V3 functions.
6937 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6938 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6939 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6940 secure PKCS#8 private key format with a high iteration count.
6943 *) Fix determination of Perl interpreter: A perl or perl5
6944 _directory_ in $PATH was also accepted as the interpreter.
6945 [Ralf S. Engelschall]
6947 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6948 wrong with it but it was very old and did things like calling
6949 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6953 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6954 to use the new extension code.
6957 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6958 with macros. This should make it easier to change their form, add extra
6959 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6963 *) Add to configuration table a new entry that can specify an alternative
6964 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6965 according to Mark Crispin <MRC@Panda.COM>.
6969 *) DES CBC did not update the IV. Weird.
6972 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6973 Changing the behaviour of the former might break existing programs --
6974 where IV updating is needed, des_ncbc_encrypt can be used.
6977 *) When bntest is run from "make test" it drives bc to check its
6978 calculations, as well as internally checking them. If an internal check
6979 fails, it needs to cause bc to give a non-zero result or make test carries
6980 on without noticing the failure. Fixed.
6983 *) DES library cleanups.
6986 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6987 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6988 ciphers. NOTE: although the key derivation function has been verified
6989 against some published test vectors it has not been extensively tested
6990 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6994 *) Instead of "mkdir -p", which is not fully portable, use new
6995 Perl script "util/mkdir-p.pl".
6998 *) Rewrite the way password based encryption (PBE) is handled. It used to
6999 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7000 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7001 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7002 the 'parameter' field of the AlgorithmIdentifier is passed to the
7003 underlying key generation function so it must do its own ASN1 parsing.
7004 This has also changed the EVP_PBE_CipherInit() function which now has a
7005 'parameter' argument instead of literal salt and iteration count values
7006 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7009 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7010 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7011 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7012 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7013 value was just used as a "magic string" and not used directly its
7014 value doesn't matter.
7017 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7021 *) "linux-sparc64" configuration (ultrapenguin).
7022 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7023 "linux-sparc" configuration.
7024 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7026 *) config now generates no-xxx options for missing ciphers.
7029 *) Support the EBCDIC character set (work in progress).
7030 File ebcdic.c not yet included because it has a different license.
7031 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7033 *) Support BS2000/OSD-POSIX.
7034 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7036 *) Make callbacks for key generation use void * instead of char *.
7039 *) Make S/MIME samples compile (not yet tested).
7042 *) Additional typesafe stacks.
7045 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7049 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7051 *) New configuration variant "sco5-gcc".
7053 *) Updated some demos.
7054 [Sean O Riordain, Wade Scholine]
7056 *) Add missing BIO_free at exit of pkcs12 application.
7059 *) Fix memory leak in conf.c.
7062 *) Updates for Win32 to assembler version of MD5.
7065 *) Set #! path to perl in apps/der_chop to where we found it
7066 instead of using a fixed path.
7069 *) SHA library changes for irix64-mips4-cc.
7072 *) Improvements for VMS support.
7076 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7078 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7079 This also avoids the problems with SC4.2 and unpatched SC5.
7080 [Andy Polyakov <appro@fy.chalmers.se>]
7082 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7083 These are required because of the typesafe stack would otherwise break
7084 existing code. If old code used a structure member which used to be STACK
7085 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7086 sk_num or sk_value it would produce an error because the num, data members
7087 are not present in STACK_OF. Now it just produces a warning. sk_set
7088 replaces the old method of assigning a value to sk_value
7089 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7090 that does this will no longer work (and should use sk_set instead) but
7091 this could be regarded as a "questionable" behaviour anyway.
7094 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7095 correctly handle encrypted S/MIME data.
7098 *) Change type of various DES function arguments from des_cblock
7099 (which means, in function argument declarations, pointer to char)
7100 to des_cblock * (meaning pointer to array with 8 char elements),
7101 which allows the compiler to do more typechecking; it was like
7102 that back in SSLeay, but with lots of ugly casts.
7104 Introduce new type const_des_cblock.
7107 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7108 problems: find RecipientInfo structure that matches recipient certificate
7109 and initialise the ASN1 structures properly based on passed cipher.
7112 *) Belatedly make the BN tests actually check the results.
7115 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7116 to and from BNs: it was completely broken. New compilation option
7117 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7118 key elements as negative integers.
7121 *) Reorganize and speed up MD5.
7122 [Andy Polyakov <appro@fy.chalmers.se>]
7125 [Richard Levitte <richard@levitte.org>]
7127 *) New option -out to asn1parse to allow the parsed structure to be
7128 output to a file. This is most useful when combined with the -strparse
7129 option to examine the output of things like OCTET STRINGS.
7132 *) Make SSL library a little more fool-proof by not requiring any longer
7133 that SSL_set_{accept,connect}_state be called before
7134 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7135 in many applications because usually everything *appeared* to work as
7136 intended anyway -- now it really works as intended).
7139 *) Move openssl.cnf out of lib/.
7142 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7143 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7144 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7145 [Ralf S. Engelschall]
7147 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7148 handle PKCS#7 enveloped data properly.
7149 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7151 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7152 copying pointers. The cert_st handling is changed by this in
7153 various ways (and thus what used to be known as ctx->default_cert
7154 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7155 any longer when s->cert does not give us what we need).
7156 ssl_cert_instantiate becomes obsolete by this change.
7157 As soon as we've got the new code right (possibly it already is?),
7158 we have solved a couple of bugs of the earlier code where s->cert
7159 was used as if it could not have been shared with other SSL structures.
7161 Note that using the SSL API in certain dirty ways now will result
7162 in different behaviour than observed with earlier library versions:
7163 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7164 does not influence s as it used to.
7166 In order to clean up things more thoroughly, inside SSL_SESSION
7167 we don't use CERT any longer, but a new structure SESS_CERT
7168 that holds per-session data (if available); currently, this is
7169 the peer's certificate chain and, for clients, the server's certificate
7170 and temporary key. CERT holds only those values that can have
7171 meaningful defaults in an SSL_CTX.
7174 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7175 from the internal representation. Various PKCS#7 fixes: remove some
7176 evil casts and set the enc_dig_alg field properly based on the signing
7180 *) Allow PKCS#12 password to be set from the command line or the
7181 environment. Let 'ca' get its config file name from the environment
7182 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7186 *) Allow certificate policies extension to use an IA5STRING for the
7187 organization field. This is contrary to the PKIX definition but
7188 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7192 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7193 without disallowing inline assembler and the like for non-pedantic builds.
7196 *) Support Borland C++ builder.
7197 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7202 *) SHA-1 cleanups and performance enhancements.
7203 [Andy Polyakov <appro@fy.chalmers.se>]
7205 *) Sparc v8plus assembler for the bignum library.
7206 [Andy Polyakov <appro@fy.chalmers.se>]
7208 *) Accept any -xxx and +xxx compiler options in Configure.
7211 *) Update HPUX configuration.
7214 *) Add missing sk_<type>_unshift() function to safestack.h
7215 [Ralf S. Engelschall]
7217 *) New function SSL_CTX_use_certificate_chain_file that sets the
7218 "extra_cert"s in addition to the certificate. (This makes sense
7219 only for "PEM" format files, as chains as a whole are not
7223 *) Support verify_depth from the SSL API.
7224 x509_vfy.c had what can be considered an off-by-one-error:
7225 Its depth (which was not part of the external interface)
7226 was actually counting the number of certificates in a chain;
7227 now it really counts the depth.
7230 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7231 instead of X509err, which often resulted in confusing error
7232 messages since the error codes are not globally unique
7233 (e.g. an alleged error in ssl3_accept when a certificate
7234 didn't match the private key).
7236 *) New function SSL_CTX_set_session_id_context that allows to set a default
7237 value (so that you don't need SSL_set_session_id_context for each
7238 connection using the SSL_CTX).
7241 *) OAEP decoding bug fix.
7244 *) Support INSTALL_PREFIX for package builders, as proposed by
7248 *) New Configure options "threads" and "no-threads". For systems
7249 where the proper compiler options are known (currently Solaris
7250 and Linux), "threads" is the default.
7253 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7256 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7257 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7258 such as /usr/local/bin.
7261 *) "make linux-shared" to build shared libraries.
7262 [Niels Poppe <niels@netbox.org>]
7264 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7267 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7268 extension adding in x509 utility.
7271 *) Remove NOPROTO sections and error code comments.
7274 *) Partial rewrite of the DEF file generator to now parse the ANSI
7278 *) New Configure options --prefix=DIR and --openssldir=DIR.
7281 *) Complete rewrite of the error code script(s). It is all now handled
7282 by one script at the top level which handles error code gathering,
7283 header rewriting and C source file generation. It should be much better
7284 than the old method: it now uses a modified version of Ulf's parser to
7285 read the ANSI prototypes in all header files (thus the old K&R definitions
7286 aren't needed for error creation any more) and do a better job of
7287 translating function codes into names. The old 'ASN1 error code imbedded
7288 in a comment' is no longer necessary and it doesn't use .err files which
7289 have now been deleted. Also the error code call doesn't have to appear all
7290 on one line (which resulted in some large lines...).
7293 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7296 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7297 0 (which usually indicates a closed connection), but continue reading.
7300 *) Fix some race conditions.
7303 *) Add support for CRL distribution points extension. Add Certificate
7304 Policies and CRL distribution points documentation.
7307 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7310 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7311 8 of keying material. Merlin has also confirmed interop with this fix
7312 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7313 [Merlin Hughes <merlin@baltimore.ie>]
7315 *) Fix lots of warnings.
7316 [Richard Levitte <levitte@stacken.kth.se>]
7318 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7319 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7320 [Richard Levitte <levitte@stacken.kth.se>]
7322 *) Fix problems with sizeof(long) == 8.
7323 [Andy Polyakov <appro@fy.chalmers.se>]
7325 *) Change functions to ANSI C.
7328 *) Fix typos in error codes.
7329 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7331 *) Remove defunct assembler files from Configure.
7334 *) SPARC v8 assembler BIGNUM implementation.
7335 [Andy Polyakov <appro@fy.chalmers.se>]
7337 *) Support for Certificate Policies extension: both print and set.
7338 Various additions to support the r2i method this uses.
7341 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7342 return a const string when you are expecting an allocated buffer.
7345 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7346 types DirectoryString and DisplayText.
7349 *) Add code to allow r2i extensions to access the configuration database,
7350 add an LHASH database driver and add several ctx helper functions.
7353 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7354 fail when they extended the size of a BIGNUM.
7357 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7358 support typesafe stack.
7361 *) Fix typo in SSL_[gs]et_options().
7362 [Nils Frostberg <nils@medcom.se>]
7364 *) Delete various functions and files that belonged to the (now obsolete)
7365 old X509V3 handling code.
7368 *) New Configure option "rsaref".
7371 *) Don't auto-generate pem.h.
7374 *) Introduce type-safe ASN.1 SETs.
7377 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7378 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7380 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7381 that links with OpenSSL (well at least cause lots of warnings), but fear
7382 not: the conversion is trivial, and it eliminates loads of evil casts. A
7383 few STACKed things have been converted already. Feel free to convert more.
7384 In the fullness of time, I'll do away with the STACK type altogether.
7387 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7388 specified in <certfile> by updating the entry in the index.txt file.
7389 This way one no longer has to edit the index.txt file manually for
7390 revoking a certificate. The -revoke option does the gory details now.
7391 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7393 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7394 `-text' option at all and this way the `-noout -text' combination was
7395 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7396 [Ralf S. Engelschall]
7398 *) Make sure a corresponding plain text error message exists for the
7399 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7400 verify callback function determined that a certificate was revoked.
7401 [Ralf S. Engelschall]
7403 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7404 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7405 all available cipers including rc5, which was forgotten until now.
7406 In order to let the testing shell script know which algorithms
7407 are available, a new (up to now undocumented) command
7408 "openssl list-cipher-commands" is used.
7411 *) Bugfix: s_client occasionally would sleep in select() when
7412 it should have checked SSL_pending() first.
7415 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7416 the raw DSA values prior to ASN.1 encoding.
7419 *) Tweaks to Configure
7420 [Niels Poppe <niels@netbox.org>]
7422 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7426 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7429 *) New config option to avoid instructions that are illegal on the 80386.
7430 The default code is faster, but requires at least a 486.
7433 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7434 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7435 same as SSL2_VERSION anyway.
7438 *) New "-showcerts" option for s_client.
7441 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7442 application. Various cleanups and fixes.
7445 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7446 modify error routines to work internally. Add error codes and PBE init
7447 to library startup routines.
7450 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7451 packing functions to asn1 and evp. Changed function names and error
7452 codes along the way.
7455 *) PKCS12 integration: and so it begins... First of several patches to
7456 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7457 objects to objects.h
7460 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7461 and display support for Thawte strong extranet extension.
7464 *) Add LinuxPPC support.
7465 [Jeff Dubrule <igor@pobox.org>]
7467 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7468 bn_div_words in alpha.s.
7469 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7471 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7472 OAEP isn't supported when OpenSSL is built with RSAref.
7473 [Ulf Moeller <ulf@fitug.de>]
7475 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7476 so they no longer are missing under -DNOPROTO.
7477 [Soren S. Jorvang <soren@t.dk>]
7480 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7482 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7483 doesn't work when the session is reused. Coming soon!
7486 *) Fix a security hole, that allows sessions to be reused in the wrong
7487 context thus bypassing client cert protection! All software that uses
7488 client certs and session caches in multiple contexts NEEDS PATCHING to
7489 allow session reuse! A fuller solution is in the works.
7490 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7492 *) Some more source tree cleanups (removed obsolete files
7493 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7494 permission on "config" script to be executable) and a fix for the INSTALL
7496 [Ulf Moeller <ulf@fitug.de>]
7498 *) Remove some legacy and erroneous uses of malloc, free instead of
7500 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7502 *) Make rsa_oaep_test return non-zero on error.
7503 [Ulf Moeller <ulf@fitug.de>]
7505 *) Add support for native Solaris shared libraries. Configure
7506 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7507 if someone would make that last step automatic.
7508 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7510 *) ctx_size was not built with the right compiler during "make links". Fixed.
7513 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7514 except NULL ciphers". This means the default cipher list will no longer
7515 enable NULL ciphers. They need to be specifically enabled e.g. with
7516 the string "DEFAULT:eNULL".
7519 *) Fix to RSA private encryption routines: if p < q then it would
7520 occasionally produce an invalid result. This will only happen with
7521 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7524 *) Be less restrictive and allow also `perl util/perlpath.pl
7525 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7526 because this way one can also use an interpreter named `perl5' (which is
7527 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7528 installed as `perl').
7529 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7531 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7532 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7534 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7535 advapi32.lib to Win32 build and change the pem test comparision
7536 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7537 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7538 and crypto/des/ede_cbcm_enc.c.
7541 *) DES quad checksum was broken on big-endian architectures. Fixed.
7544 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7545 Win32 test batch file so it (might) work again. The Win32 test batch file
7546 is horrible: I feel ill....
7549 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7550 in e_os.h. Audit of header files to check ANSI and non ANSI
7551 sections: 10 functions were absent from non ANSI section and not exported
7552 from Windows DLLs. Fixed up libeay.num for new functions.
7555 *) Make `openssl version' output lines consistent.
7556 [Ralf S. Engelschall]
7558 *) Fix Win32 symbol export lists for BIO functions: Added
7559 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7560 to ms/libeay{16,32}.def.
7561 [Ralf S. Engelschall]
7563 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7564 fine under Unix and passes some trivial tests I've now added. But the
7565 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7566 added to make sure no one expects that this stuff really works in the
7567 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7568 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7570 [Ralf S. Engelschall]
7572 *) Fix the generation of two part addresses in perl.
7573 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7575 *) Add config entry for Linux on MIPS.
7576 [John Tobey <jtobey@channel1.com>]
7578 *) Make links whenever Configure is run, unless we are on Windoze.
7581 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7582 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7586 *) Add a useful kludge to allow package maintainers to specify compiler and
7587 other platforms details on the command line without having to patch the
7588 Configure script everytime: One now can use ``perl Configure
7589 <id>:<details>'', i.e. platform ids are allowed to have details appended
7590 to them (seperated by colons). This is treated as there would be a static
7591 pre-configured entry in Configure's %table under key <id> with value
7592 <details> and ``perl Configure <id>'' is called. So, when you want to
7593 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7594 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7595 now, which overrides the FreeBSD-elf entry on-the-fly.
7596 [Ralf S. Engelschall]
7598 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7601 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7602 on the `perl Configure ...' command line. This way one can compile
7603 OpenSSL libraries with Position Independent Code (PIC) which is needed
7604 for linking it into DSOs.
7605 [Ralf S. Engelschall]
7607 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7611 *) Cleaned up the LICENSE document: The official contact for any license
7612 questions now is the OpenSSL core team under openssl-core@openssl.org.
7613 And add a paragraph about the dual-license situation to make sure people
7614 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7615 to the OpenSSL toolkit.
7616 [Ralf S. Engelschall]
7618 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7619 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7620 Additonally cleaned up the `make links' target: Remove unnecessary
7621 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7622 to speed processing and no longer clutter the display with confusing
7623 stuff. Instead only the actually done links are displayed.
7624 [Ralf S. Engelschall]
7626 *) Permit null encryption ciphersuites, used for authentication only. It used
7627 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7628 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7632 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7633 signed attributes when verifying signatures (this would break them),
7634 the detached data encoding was wrong and public keys obtained using
7635 X509_get_pubkey() weren't freed.
7638 *) Add text documentation for the BUFFER functions. Also added a work around
7639 to a Win95 console bug. This was triggered by the password read stuff: the
7640 last character typed gets carried over to the next fread(). If you were
7641 generating a new cert request using 'req' for example then the last
7642 character of the passphrase would be CR which would then enter the first
7646 *) Added the new `Includes OpenSSL Cryptography Software' button as
7647 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7648 button and can be used by applications based on OpenSSL to show the
7649 relationship to the OpenSSL project.
7650 [Ralf S. Engelschall]
7652 *) Remove confusing variables in function signatures in files
7653 ssl/ssl_lib.c and ssl/ssl.h.
7654 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7656 *) Don't install bss_file.c under PREFIX/include/
7657 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7659 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7660 functions that return function pointers and has support for NT specific
7661 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7662 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7663 unsigned to signed types: this was killing the Win32 compile.
7666 *) Add new certificate file to stack functions,
7667 SSL_add_dir_cert_subjects_to_stack() and
7668 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7669 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7670 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7671 This means that Apache-SSL and similar packages don't have to mess around
7672 to add as many CAs as they want to the preferred list.
7675 *) Experiment with doxygen documentation. Currently only partially applied to
7677 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7678 openssl.doxy as the configuration file.
7681 *) Get rid of remaining C++-style comments which strict C compilers hate.
7682 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7684 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7685 compiled in by default: it has problems with large keys.
7688 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7689 DH private keys and/or callback functions which directly correspond to
7690 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7691 is needed for applications which have to configure certificates on a
7692 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7694 For the RSA certificate situation is makes no difference, but
7695 for the DSA certificate situation this fixes the "no shared cipher"
7696 problem where the OpenSSL cipher selection procedure failed because the
7697 temporary keys were not overtaken from the context and the API provided
7698 no way to reconfigure them.
7699 The new functions now let applications reconfigure the stuff and they
7700 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7701 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7702 non-public-API function ssl_cert_instantiate() is used as a helper
7703 function and also to reduce code redundancy inside ssl_rsa.c.
7704 [Ralf S. Engelschall]
7706 *) Move s_server -dcert and -dkey options out of the undocumented feature
7707 area because they are useful for the DSA situation and should be
7708 recognized by the users.
7709 [Ralf S. Engelschall]
7711 *) Fix the cipher decision scheme for export ciphers: the export bits are
7712 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7713 SSL_EXP_MASK. So, the original variable has to be used instead of the
7714 already masked variable.
7715 [Richard Levitte <levitte@stacken.kth.se>]
7717 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7718 [Richard Levitte <levitte@stacken.kth.se>]
7720 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7721 from `int' to `unsigned int' because it's a length and initialized by
7722 EVP_DigestFinal() which expects an `unsigned int *'.
7723 [Richard Levitte <levitte@stacken.kth.se>]
7725 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7726 script. Instead use the usual Shell->Perl transition trick.
7727 [Ralf S. Engelschall]
7729 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7730 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7731 -noout -modulus' as it's already the case for `openssl rsa -noout
7732 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7733 currently the public key is printed (a decision which was already done by
7734 `openssl dsa -modulus' in the past) which serves a similar purpose.
7735 Additionally the NO_RSA no longer completely removes the whole -modulus
7736 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7738 [Ralf S. Engelschall]
7740 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7741 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7742 [Arne Ansper <arne@ats.cyber.ee>]
7744 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7745 to be added. Now both 'req' and 'ca' can use new objects defined in the
7749 *) Add cool BIO that does syslog (or event log on NT).
7750 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7752 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7753 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7754 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7755 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7758 *) Add preliminary config info for new extension code.
7761 *) Make RSA_NO_PADDING really use no padding.
7762 [Ulf Moeller <ulf@fitug.de>]
7764 *) Generate errors when private/public key check is done.
7767 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7768 for some CRL extensions and new objects added.
7771 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7772 key usage extension and fuller support for authority key id.
7775 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7776 padding method for RSA, which is recommended for new applications in PKCS
7777 #1 v2.0 (RFC 2437, October 1998).
7778 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7779 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7780 against Bleichbacher's attack on RSA.
7781 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7784 *) Updates to the new SSL compression code
7785 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7787 *) Fix so that the version number in the master secret, when passed
7788 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7789 (because the server will not accept higher), that the version number
7790 is 0x03,0x01, not 0x03,0x00
7791 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7793 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7794 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7795 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7798 *) Support for RAW extensions where an arbitrary extension can be
7799 created by including its DER encoding. See apps/openssl.cnf for
7803 *) Make sure latest Perl versions don't interpret some generated C array
7804 code as Perl array code in the crypto/err/err_genc.pl script.
7805 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7807 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7808 not many people have the assembler. Various Win32 compilation fixes and
7809 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7813 *) Modify configure script 'Configure' to automatically create crypto/date.h
7814 file under Win32 and also build pem.h from pem.org. New script
7815 util/mkfiles.pl to create the MINFO file on environments that can't do a
7816 'make files': perl util/mkfiles.pl >MINFO should work.
7819 *) Major rework of DES function declarations, in the pursuit of correctness
7820 and purity. As a result, many evil casts evaporated, and some weirdness,
7821 too. You may find this causes warnings in your code. Zapping your evil
7822 casts will probably fix them. Mostly.
7825 *) Fix for a typo in asn1.h. Bug fix to object creation script
7826 obj_dat.pl. It considered a zero in an object definition to mean
7827 "end of object": none of the objects in objects.h have any zeros
7828 so it wasn't spotted.
7829 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7831 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7832 Masking (CBCM). In the absence of test vectors, the best I have been able
7833 to do is check that the decrypt undoes the encrypt, so far. Send me test
7834 vectors if you have them.
7837 *) Correct calculation of key length for export ciphers (too much space was
7838 allocated for null ciphers). This has not been tested!
7841 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7842 message is now correct (it understands "crypto" and "ssl" on its
7843 command line). There is also now an "update" option. This will update
7844 the util/ssleay.num and util/libeay.num files with any new functions.
7846 perl util/mkdef.pl crypto ssl update
7847 it will update them.
7850 *) Overhauled the Perl interface (perl/*):
7851 - ported BN stuff to OpenSSL's different BN library
7852 - made the perl/ source tree CVS-aware
7853 - renamed the package from SSLeay to OpenSSL (the files still contain
7854 their history because I've copied them in the repository)
7855 - removed obsolete files (the test scripts will be replaced
7856 by better Test::Harness variants in the future)
7857 [Ralf S. Engelschall]
7859 *) First cut for a very conservative source tree cleanup:
7860 1. merge various obsolete readme texts into doc/ssleay.txt
7861 where we collect the old documents and readme texts.
7862 2. remove the first part of files where I'm already sure that we no
7863 longer need them because of three reasons: either they are just temporary
7864 files which were left by Eric or they are preserved original files where
7865 I've verified that the diff is also available in the CVS via "cvs diff
7866 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7867 the crypto/md/ stuff).
7868 [Ralf S. Engelschall]
7870 *) More extension code. Incomplete support for subject and issuer alt
7871 name, issuer and authority key id. Change the i2v function parameters
7872 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7873 what that's for :-) Fix to ASN1 macro which messed up
7874 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7877 *) Preliminary support for ENUMERATED type. This is largely copied from the
7881 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7882 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7884 *) Make sure `make rehash' target really finds the `openssl' program.
7885 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7887 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7888 like to hear about it if this slows down other processors.
7891 *) Add CygWin32 platform information to Configure script.
7892 [Alan Batie <batie@aahz.jf.intel.com>]
7894 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7895 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7897 *) New program nseq to manipulate netscape certificate sequences
7900 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7904 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7905 but the BN code had some problems that would cause failures when
7906 doing certificate verification and some other functions.
7907 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7909 *) Add ASN1 and PEM code to support netscape certificate sequences.
7912 *) Add ASN1 and PEM code to support netscape certificate sequences.
7915 *) Add several PKIX and private extended key usage OIDs.
7918 *) Modify the 'ca' program to handle the new extension code. Modify
7919 openssl.cnf for new extension format, add comments.
7922 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7923 and add a sample to openssl.cnf so req -x509 now adds appropriate
7927 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7928 error code, add initial support to X509_print() and x509 application.
7931 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7932 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7933 stuff is currently isolated and isn't even compiled yet.
7936 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7937 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7938 Removed the versions check from X509 routines when loading extensions:
7939 this allows certain broken certificates that don't set the version
7940 properly to be processed.
7943 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7944 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7945 can still be regenerated with "make depend".
7948 *) Spelling mistake in C version of CAST-128.
7949 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7951 *) Changes to the error generation code. The perl script err-code.pl
7952 now reads in the old error codes and retains the old numbers, only
7953 adding new ones if necessary. It also only changes the .err files if new
7954 codes are added. The makefiles have been modified to only insert errors
7955 when needed (to avoid needlessly modifying header files). This is done
7956 by only inserting errors if the .err file is newer than the auto generated
7957 C file. To rebuild all the error codes from scratch (the old behaviour)
7958 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7959 or delete all the .err files.
7962 *) CAST-128 was incorrectly implemented for short keys. The C version has
7963 been fixed, but is untested. The assembler versions are also fixed, but
7964 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7965 to regenerate it if needed.
7966 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7967 Hagino <itojun@kame.net>]
7969 *) File was opened incorrectly in randfile.c.
7970 [Ulf Möller <ulf@fitug.de>]
7972 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7973 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7974 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7975 al: it's just almost always a UTCTime. Note this patch adds new error
7976 codes so do a "make errors" if there are problems.
7979 *) Correct Linux 1 recognition in config.
7980 [Ulf Möller <ulf@fitug.de>]
7982 *) Remove pointless MD5 hash when using DSA keys in ca.
7983 [Anonymous <nobody@replay.com>]
7985 *) Generate an error if given an empty string as a cert directory. Also
7986 generate an error if handed NULL (previously returned 0 to indicate an
7987 error, but didn't set one).
7988 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7990 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7993 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7994 parameters. This was causing a warning which killed off the Win32 compile.
7997 *) Remove C++ style comments from crypto/bn/bn_local.h.
7998 [Neil Costigan <neil.costigan@celocom.com>]
8000 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8001 based on a text string, looking up short and long names and finally
8002 "dot" format. The "dot" format stuff didn't work. Added new function
8003 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8004 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8005 OID is not part of the table.
8008 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8009 X509_LOOKUP_by_alias().
8012 *) Sort openssl functions by name.
8015 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8016 encryption from sample DSA keys (in case anyone is interested the password
8020 *) Make _all_ *_free functions accept a NULL pointer.
8021 [Frans Heymans <fheymans@isaserver.be>]
8023 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8025 [Anonymous <nobody@replay.com>]
8027 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8028 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8030 *) Don't blow it for numeric -newkey arguments to apps/req.
8031 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8033 *) Temp key "for export" tests were wrong in s3_srvr.c.
8034 [Anonymous <nobody@replay.com>]
8036 *) Add prototype for temp key callback functions
8037 SSL_CTX_set_tmp_{rsa,dh}_callback().
8040 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8041 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8044 *) X509_name_add_entry() freed the wrong thing after an error.
8045 [Arne Ansper <arne@ats.cyber.ee>]
8047 *) rsa_eay.c would attempt to free a NULL context.
8048 [Arne Ansper <arne@ats.cyber.ee>]
8050 *) BIO_s_socket() had a broken should_retry() on Windoze.
8051 [Arne Ansper <arne@ats.cyber.ee>]
8053 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8054 [Arne Ansper <arne@ats.cyber.ee>]
8056 *) Make sure the already existing X509_STORE->depth variable is initialized
8057 in X509_STORE_new(), but document the fact that this variable is still
8058 unused in the certificate verification process.
8059 [Ralf S. Engelschall]
8061 *) Fix the various library and apps files to free up pkeys obtained from
8062 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8065 *) Fix reference counting in X509_PUBKEY_get(). This makes
8066 demos/maurice/example2.c work, amongst others, probably.
8067 [Steve Henson and Ben Laurie]
8069 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8070 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8071 are no longer created. This way we have a single and consistent command
8072 line interface `openssl <command>', similar to `cvs <command>'.
8073 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8075 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8076 BIT STRING wrapper always have zero unused bits.
8079 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8082 *) Make the top-level INSTALL documentation easier to understand.
8085 *) Makefiles updated to exit if an error occurs in a sub-directory
8086 make (including if user presses ^C) [Paul Sutton]
8088 *) Make Montgomery context stuff explicit in RSA data structure.
8091 *) Fix build order of pem and err to allow for generated pem.h.
8094 *) Fix renumbering bug in X509_NAME_delete_entry().
8097 *) Enhanced the err-ins.pl script so it makes the error library number
8098 global and can add a library name. This is needed for external ASN1 and
8099 other error libraries.
8102 *) Fixed sk_insert which never worked properly.
8105 *) Fix ASN1 macros so they can handle indefinite length construted
8106 EXPLICIT tags. Some non standard certificates use these: they can now
8110 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8111 into a single doc/ssleay.txt bundle. This way the information is still
8112 preserved but no longer messes up this directory. Now it's new room for
8113 the new set of documenation files.
8114 [Ralf S. Engelschall]
8116 *) SETs were incorrectly DER encoded. This was a major pain, because they
8117 shared code with SEQUENCEs, which aren't coded the same. This means that
8118 almost everything to do with SETs or SEQUENCEs has either changed name or
8119 number of arguments.
8120 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8122 *) Fix test data to work with the above.
8125 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8126 was already fixed by Eric for 0.9.1 it seems.
8127 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8129 *) Autodetect FreeBSD3.
8132 *) Fix various bugs in Configure. This affects the following platforms:
8136 unixware-2.0-pentium
8140 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8141 before they are needed.
8144 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8148 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8150 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8151 changed SSLeay to OpenSSL in version strings.
8152 [Ralf S. Engelschall]
8154 *) Some fixups to the top-level documents.
8157 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8158 because the symlink to include/ was missing.
8159 [Ralf S. Engelschall]
8161 *) Incorporated the popular no-RSA/DSA-only patches
8162 which allow to compile a RSA-free SSLeay.
8163 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8165 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8166 when "ssleay" is still not found.
8167 [Ralf S. Engelschall]
8169 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8170 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8172 *) Updated the README file.
8173 [Ralf S. Engelschall]
8175 *) Added various .cvsignore files in the CVS repository subdirs
8176 to make a "cvs update" really silent.
8177 [Ralf S. Engelschall]
8179 *) Recompiled the error-definition header files and added
8180 missing symbols to the Win32 linker tables.
8181 [Ralf S. Engelschall]
8183 *) Cleaned up the top-level documents;
8184 o new files: CHANGES and LICENSE
8185 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8186 o merged COPYRIGHT into LICENSE
8187 o removed obsolete TODO file
8188 o renamed MICROSOFT to INSTALL.W32
8189 [Ralf S. Engelschall]
8191 *) Removed dummy files from the 0.9.1b source tree:
8192 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8193 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8194 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8195 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8196 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8197 [Ralf S. Engelschall]
8199 *) Added various platform portability fixes.
8202 *) The Genesis of the OpenSSL rpject:
8203 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8204 Young and Tim J. Hudson created while they were working for C2Net until
8206 [The OpenSSL Project]
8209 Changes between 0.9.0b and 0.9.1b [not released]
8211 *) Updated a few CA certificates under certs/
8214 *) Changed some BIGNUM api stuff.
8217 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8218 DGUX x86, Linux Alpha, etc.
8221 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8222 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8226 *) Add -strparse option to asn1pars program which parses nested
8228 [Dr Stephen Henson <shenson@bigfoot.com>]
8230 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8233 *) DSA fix for "ca" program.
8236 *) Added "-genkey" option to "dsaparam" program.
8239 *) Added RIPE MD160 (rmd160) message digest.
8242 *) Added -a (all) option to "ssleay version" command.
8245 *) Added PLATFORM define which is the id given to Configure.
8248 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8251 *) Extended the ASN.1 parser routines.
8254 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8257 *) Added a BN_CTX to the BN library.
8260 *) Fixed the weak key values in DES library
8263 *) Changed API in EVP library for cipher aliases.
8266 *) Added support for RC2/64bit cipher.
8269 *) Converted the lhash library to the crypto/mem.c functions.
8272 *) Added more recognized ASN.1 object ids.
8275 *) Added more RSA padding checks for SSL/TLS.
8278 *) Added BIO proxy/filter functionality.
8281 *) Added extra_certs to SSL_CTX which can be used
8282 send extra CA certificates to the client in the CA cert chain sending
8283 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8286 *) Now Fortezza is denied in the authentication phase because
8287 this is key exchange mechanism is not supported by SSLeay at all.
8290 *) Additional PKCS1 checks.
8293 *) Support the string "TLSv1" for all TLS v1 ciphers.
8296 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8297 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8300 *) Fixed a few memory leaks.
8303 *) Fixed various code and comment typos.
8306 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8307 bytes sent in the client random.
8308 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob