5 Changes between 0.9.8j and 0.9.8k [xx XXX xxxx]
7 *) Don't set val to NULL when freeing up structures, it is freed up by
8 underlying code. If sizeof(void *) > sizeof(long) this can result in
9 zeroing past the valid field. (CVE-2009-0789)
10 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
12 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
13 checked correctly. This would allow some invalid signed attributes to
14 appear to verify correctly. (CVE-2009-0591)
15 [Ivan Nestlerode <inestlerode@us.ibm.com>]
17 *) Reject UniversalString and BMPString types with invalid lengths. This
18 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
19 a legal length. (CVE-2009-0590)
22 *) Set S/MIME signing as the default purpose rather than setting it
23 unconditionally. This allows applications to override it at the store
27 *) Permit restricted recursion of ASN1 strings. This is needed in practice
28 to handle some structures.
31 *) Improve efficiency of mem_gets: don't search whole buffer each time
33 [Jeremy Shapiro <jnshapir@us.ibm.com>]
35 *) New -hex option for openssl rand.
38 *) Print out UTF8String and NumericString when parsing ASN1.
41 *) Support NumericString type for name components.
44 *) Allow CC in the environment to override the automatically chosen
45 compiler. Note that nothing is done to ensure flags work with the
49 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
51 *) Properly check EVP_VerifyFinal() and similar return values
53 [Ben Laurie, Bodo Moeller, Google Security Team]
55 *) Enable TLS extensions by default.
58 *) Allow the CHIL engine to be loaded, whether the application is
59 multithreaded or not. (This does not release the developer from the
60 obligation to set up the dynamic locking callbacks.)
61 [Sander Temme <sander@temme.net>]
63 *) Use correct exit code if there is an error in dgst command.
64 [Steve Henson; problem pointed out by Roland Dirlewanger]
66 *) Tweak Configure so that you need to say "experimental-jpake" to enable
67 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
70 *) Add experimental JPAKE support, including demo authentication in
71 s_client and s_server.
74 *) Set the comparison function in v3_addr_canonize().
75 [Rob Austein <sra@hactrn.net>]
77 *) Add support for XMPP STARTTLS in s_client.
78 [Philip Paeps <philip@freebsd.org>]
80 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
81 to ensure that even with this option, only ciphersuites in the
82 server's preference list will be accepted. (Note that the option
83 applies only when resuming a session, so the earlier behavior was
84 just about the algorithm choice for symmetric cryptography.)
87 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
89 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
90 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
93 *) The fix in 0.9.8c that supposedly got rid of unsafe
94 double-checked locking was incomplete for RSA blinding,
95 addressing just one layer of what turns out to have been
96 doubly unsafe triple-checked locking.
98 So now fix this for real by retiring the MONT_HELPER macro
99 in crypto/rsa/rsa_eay.c.
101 [Bodo Moeller; problem pointed out by Marius Schilder]
103 *) Various precautionary measures:
105 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
107 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
108 (NB: This would require knowledge of the secret session ticket key
109 to exploit, in which case you'd be SOL either way.)
111 - Change bn_nist.c so that it will properly handle input BIGNUMs
112 outside the expected range.
114 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
117 [Neel Mehta, Bodo Moeller]
119 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
120 the load fails. Useful for distros.
121 [Ben Laurie and the FreeBSD team]
123 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
126 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
129 *) Expand ENGINE to support engine supplied SSL client certificate functions.
131 This work was sponsored by Logica.
134 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
135 keystores. Support for SSL/TLS client authentication too.
136 Not compiled unless enable-capieng specified to Configure.
138 This work was sponsored by Logica.
141 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
142 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
143 attribute creation routines such as certifcate requests and PKCS#12
147 Changes between 0.9.8g and 0.9.8h [28 May 2008]
149 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
150 handshake which could lead to a cilent crash as found using the
151 Codenomicon TLS test suite (CVE-2008-1672)
152 [Steve Henson, Mark Cox]
154 *) Fix double free in TLS server name extensions which could lead to
155 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
158 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
160 Clear the error queue to ensure that error entries left from
161 older function calls do not interfere with the correct operation.
162 [Lutz Jaenicke, Erik de Castro Lopo]
164 *) Remove root CA certificates of commercial CAs:
166 The OpenSSL project does not recommend any specific CA and does not
167 have any policy with respect to including or excluding any CA.
168 Therefore it does not make any sense to ship an arbitrary selection
169 of root CA certificates with the OpenSSL software.
172 *) RSA OAEP patches to fix two separate invalid memory reads.
173 The first one involves inputs when 'lzero' is greater than
174 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
175 before the beginning of from). The second one involves inputs where
176 the 'db' section contains nothing but zeroes (there is a one-byte
177 invalid read after the end of 'db').
178 [Ivan Nestlerode <inestlerode@us.ibm.com>]
180 *) Partial backport from 0.9.9-dev:
182 Introduce bn_mul_mont (dedicated Montgomery multiplication
183 procedure) as a candidate for BIGNUM assembler implementation.
184 While 0.9.9-dev uses assembler for various architectures, only
185 x86_64 is available by default here in the 0.9.8 branch, and
186 32-bit x86 is available through a compile-time setting.
188 To try the 32-bit x86 assembler implementation, use Configure
189 option "enable-montasm" (which exists only for this backport).
191 As "enable-montasm" for 32-bit x86 disclaims code stability
192 anyway, in this constellation we activate additional code
193 backported from 0.9.9-dev for further performance improvements,
194 namely BN_from_montgomery_word. (To enable this otherwise,
195 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
197 [Andy Polyakov (backport partially by Bodo Moeller)]
199 *) Add TLS session ticket callback. This allows an application to set
200 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
201 values. This is useful for key rollover for example where several key
202 sets may exist with different names.
205 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
206 This was broken until now in 0.9.8 releases, such that the only way
207 a registered ENGINE could be used (assuming it initialises
208 successfully on the host) was to explicitly set it as the default
209 for the relevant algorithms. This is in contradiction with 0.9.7
210 behaviour and the documentation. With this fix, when an ENGINE is
211 registered into a given algorithm's table of implementations, the
212 'uptodate' flag is reset so that auto-discovery will be used next
213 time a new context for that algorithm attempts to select an
215 [Ian Lister (tweaked by Geoff Thorpe)]
217 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
218 implemention in the following ways:
220 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
223 Lack of BER streaming support means one pass streaming processing is
224 only supported if data is detached: setting the streaming flag is
225 ignored for embedded content.
227 CMS support is disabled by default and must be explicitly enabled
228 with the enable-cms configuration option.
231 *) Update the GMP engine glue to do direct copies between BIGNUM and
232 mpz_t when openssl and GMP use the same limb size. Otherwise the
233 existing "conversion via a text string export" trick is still used.
234 [Paul Sheer <paulsheer@gmail.com>]
236 *) Zlib compression BIO. This is a filter BIO which compressed and
237 uncompresses any data passed through it.
240 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
241 RFC3394 compatible AES key wrapping.
244 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
245 sets string data without copying. X509_ALGOR_set0() and
246 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
247 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
248 from an X509_ATTRIBUTE structure optionally checking it occurs only
249 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
253 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
254 to get the expected BN_FLG_CONSTTIME behavior.
255 [Bodo Moeller (Google)]
259 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
260 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
261 - added some more tests to do_tests.pl
262 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
263 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
264 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
265 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
266 - various changes to netware.pl to enable gcc-cross builds on Win32
268 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
269 - various changes to fix missing prototype warnings
270 - fixed x86nasm.pl to create correct asm files for NASM COFF output
271 - added AES, WHIRLPOOL and CPUID assembler code to build files
272 - added missing AES assembler make rules to mk1mf.pl
273 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
274 [Guenter Knauf <eflash@gmx.net>]
276 *) Implement certificate status request TLS extension defined in RFC3546.
277 A client can set the appropriate parameters and receive the encoded
278 OCSP response via a callback. A server can query the supplied parameters
279 and set the encoded OCSP response in the callback. Add simplified examples
280 to s_client and s_server.
283 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
286 + Binary incompatibility of ssl_ctx_st structure
287 + DTLS interoperation with non-compliant servers
288 + Don't call get_session_cb() without proposed session
289 + Fix ia64 assembler code
290 [Andy Polyakov, Steve Henson]
292 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
294 *) DTLS Handshake overhaul. There were longstanding issues with
295 OpenSSL DTLS implementation, which were making it impossible for
296 RFC 4347 compliant client to communicate with OpenSSL server.
297 Unfortunately just fixing these incompatibilities would "cut off"
298 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
299 server keeps tolerating non RFC compliant syntax. The opposite is
300 not true, 0.9.8f client can not communicate with earlier server.
301 This update even addresses CVE-2007-4995.
304 *) Changes to avoid need for function casts in OpenSSL: some compilers
305 (gcc 4.2 and later) reject their use.
306 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
309 *) Add RFC4507 support to OpenSSL. This includes the corrections in
310 RFC4507bis. The encrypted ticket format is an encrypted encoded
311 SSL_SESSION structure, that way new session features are automatically
314 If a client application caches session in an SSL_SESSION structure
315 support is transparent because tickets are now stored in the encoded
318 The SSL_CTX structure automatically generates keys for ticket
319 protection in servers so again support should be possible
320 with no application modification.
322 If a client or server wishes to disable RFC4507 support then the option
323 SSL_OP_NO_TICKET can be set.
325 Add a TLS extension debugging callback to allow the contents of any client
326 or server extensions to be examined.
328 This work was sponsored by Google.
331 *) Add initial support for TLS extensions, specifically for the server_name
332 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
333 have new members for a host name. The SSL data structure has an
334 additional member SSL_CTX *initial_ctx so that new sessions can be
335 stored in that context to allow for session resumption, even after the
336 SSL has been switched to a new SSL_CTX in reaction to a client's
337 server_name extension.
339 New functions (subject to change):
342 SSL_get_servername_type()
345 New CTRL codes and macros (subject to change):
347 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
348 - SSL_CTX_set_tlsext_servername_callback()
349 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
350 - SSL_CTX_set_tlsext_servername_arg()
351 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
353 openssl s_client has a new '-servername ...' option.
355 openssl s_server has new options '-servername_host ...', '-cert2 ...',
356 '-key2 ...', '-servername_fatal' (subject to change). This allows
357 testing the HostName extension for a specific single host name ('-cert'
358 and '-key' remain fallbacks for handshakes without HostName
359 negotiation). If the unrecogninzed_name alert has to be sent, this by
360 default is a warning; it becomes fatal with the '-servername_fatal'
363 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
365 *) Add AES and SSE2 assembly language support to VC++ build.
368 *) Mitigate attack on final subtraction in Montgomery reduction.
371 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
372 (which previously caused an internal error).
375 *) Squeeze another 10% out of IGE mode when in != out.
378 *) AES IGE mode speedup.
379 [Dean Gaudet (Google)]
381 *) Add the Korean symmetric 128-bit cipher SEED (see
382 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
383 add SEED ciphersuites from RFC 4162:
385 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
386 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
387 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
388 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
390 To minimize changes between patchlevels in the OpenSSL 0.9.8
391 series, SEED remains excluded from compilation unless OpenSSL
392 is configured with 'enable-seed'.
395 *) Mitigate branch prediction attacks, which can be practical if a
396 single processor is shared, allowing a spy process to extract
397 information. For detailed background information, see
398 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
399 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
400 and Necessary Software Countermeasures"). The core of the change
401 are new versions BN_div_no_branch() and
402 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
403 respectively, which are slower, but avoid the security-relevant
404 conditional branches. These are automatically called by BN_div()
405 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
406 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
407 remove a conditional branch.
409 BN_FLG_CONSTTIME is the new name for the previous
410 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
411 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
412 in the exponent causes BN_mod_exp_mont() to use the alternative
413 implementation in BN_mod_exp_mont_consttime().) The old name
414 remains as a deprecated alias.
416 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
417 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
418 constant-time implementations for more than just exponentiation.
419 Here too the old name is kept as a deprecated alias.
421 BN_BLINDING_new() will now use BN_dup() for the modulus so that
422 the BN_BLINDING structure gets an independent copy of the
423 modulus. This means that the previous "BIGNUM *m" argument to
424 BN_BLINDING_new() and to BN_BLINDING_create_param() now
425 essentially becomes "const BIGNUM *m", although we can't actually
426 change this in the header file before 0.9.9. It allows
427 RSA_setup_blinding() to use BN_with_flags() on the modulus to
428 enable BN_FLG_CONSTTIME.
430 [Matthew D Wood (Intel Corp)]
432 *) In the SSL/TLS server implementation, be strict about session ID
433 context matching (which matters if an application uses a single
434 external cache for different purposes). Previously,
435 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
436 set. This did ensure strict client verification, but meant that,
437 with applications using a single external cache for quite
438 different requirements, clients could circumvent ciphersuite
439 restrictions for a given session ID context by starting a session
440 in a different context.
443 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
444 a ciphersuite string such as "DEFAULT:RSA" cannot enable
445 authentication-only ciphersuites.
448 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
449 not complete and could lead to a possible single byte overflow
450 (CVE-2007-5135) [Ben Laurie]
452 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
454 *) Since AES128 and AES256 (and similarly Camellia128 and
455 Camellia256) share a single mask bit in the logic of
456 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
457 kludge to work properly if AES128 is available and AES256 isn't
458 (or if Camellia128 is available and Camellia256 isn't).
461 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
462 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
463 When a point or a seed is encoded in a BIT STRING, we need to
464 prevent the removal of trailing zero bits to get the proper DER
465 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
466 of a NamedBitList, for which trailing 0 bits need to be removed.)
469 *) Have SSL/TLS server implementation tolerate "mismatched" record
470 protocol version while receiving ClientHello even if the
471 ClientHello is fragmented. (The server can't insist on the
472 particular protocol version it has chosen before the ServerHello
473 message has informed the client about his choice.)
476 *) Add RFC 3779 support.
477 [Rob Austein for ARIN, Ben Laurie]
479 *) Load error codes if they are not already present instead of using a
480 static variable. This allows them to be cleanly unloaded and reloaded.
481 Improve header file function name parsing.
484 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
485 or CAPABILITY handshake as required by RFCs.
488 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
490 *) Introduce limits to prevent malicious keys being able to
491 cause a denial of service. (CVE-2006-2940)
492 [Steve Henson, Bodo Moeller]
494 *) Fix ASN.1 parsing of certain invalid structures that can result
495 in a denial of service. (CVE-2006-2937) [Steve Henson]
497 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
498 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
500 *) Fix SSL client code which could crash if connecting to a
501 malicious SSLv2 server. (CVE-2006-4343)
502 [Tavis Ormandy and Will Drewry, Google Security Team]
504 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
505 match only those. Before that, "AES256-SHA" would be interpreted
506 as a pattern and match "AES128-SHA" too (since AES128-SHA got
507 the same strength classification in 0.9.7h) as we currently only
508 have a single AES bit in the ciphersuite description bitmap.
509 That change, however, also applied to ciphersuite strings such as
510 "RC4-MD5" that intentionally matched multiple ciphersuites --
511 namely, SSL 2.0 ciphersuites in addition to the more common ones
512 from SSL 3.0/TLS 1.0.
514 So we change the selection algorithm again: Naming an explicit
515 ciphersuite selects this one ciphersuite, and any other similar
516 ciphersuite (same bitmap) from *other* protocol versions.
517 Thus, "RC4-MD5" again will properly select both the SSL 2.0
518 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
520 Since SSL 2.0 does not have any ciphersuites for which the
521 128/256 bit distinction would be relevant, this works for now.
522 The proper fix will be to use different bits for AES128 and
523 AES256, which would have avoided the problems from the beginning;
524 however, bits are scarce, so we can only do this in a new release
525 (not just a patchlevel) when we can change the SSL_CIPHER
526 definition to split the single 'unsigned long mask' bitmap into
527 multiple values to extend the available space.
531 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
533 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
534 (CVE-2006-4339) [Ben Laurie and Google Security Team]
536 *) Add AES IGE and biIGE modes.
539 *) Change the Unix randomness entropy gathering to use poll() when
540 possible instead of select(), since the latter has some
541 undesirable limitations.
542 [Darryl Miles via Richard Levitte and Bodo Moeller]
544 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
545 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
546 cannot be implicitly activated as part of, e.g., the "AES" alias.
547 However, please upgrade to OpenSSL 0.9.9[-dev] for
548 non-experimental use of the ECC ciphersuites to get TLS extension
549 support, which is required for curve and point format negotiation
550 to avoid potential handshake problems.
553 *) Disable rogue ciphersuites:
555 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
556 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
557 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
559 The latter two were purportedly from
560 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
563 Also deactivate the remaining ciphersuites from
564 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
565 unofficial, and the ID has long expired.
568 *) Fix RSA blinding Heisenbug (problems sometimes occured on
569 dual-core machines) and other potential thread-safety issues.
572 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
573 versions), which is now available for royalty-free use
574 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
575 Also, add Camellia TLS ciphersuites from RFC 4132.
577 To minimize changes between patchlevels in the OpenSSL 0.9.8
578 series, Camellia remains excluded from compilation unless OpenSSL
579 is configured with 'enable-camellia'.
582 *) Disable the padding bug check when compression is in use. The padding
583 bug check assumes the first packet is of even length, this is not
584 necessarily true if compresssion is enabled and can result in false
585 positives causing handshake failure. The actual bug test is ancient
586 code so it is hoped that implementations will either have fixed it by
587 now or any which still have the bug do not support compression.
590 Changes between 0.9.8a and 0.9.8b [04 May 2006]
592 *) When applying a cipher rule check to see if string match is an explicit
593 cipher suite and only match that one cipher suite if it is.
596 *) Link in manifests for VC++ if needed.
597 [Austin Ziegler <halostatue@gmail.com>]
599 *) Update support for ECC-based TLS ciphersuites according to
600 draft-ietf-tls-ecc-12.txt with proposed changes (but without
601 TLS extensions, which are supported starting with the 0.9.9
602 branch, not in the OpenSSL 0.9.8 branch).
605 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
606 opaque EVP_CIPHER_CTX handling.
609 *) Fixes and enhancements to zlib compression code. We now only use
610 "zlib1.dll" and use the default __cdecl calling convention on Win32
611 to conform with the standards mentioned here:
612 http://www.zlib.net/DLL_FAQ.txt
613 Static zlib linking now works on Windows and the new --with-zlib-include
614 --with-zlib-lib options to Configure can be used to supply the location
615 of the headers and library. Gracefully handle case where zlib library
619 *) Several fixes and enhancements to the OID generation code. The old code
620 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
621 handle numbers larger than ULONG_MAX, truncated printing and had a
622 non standard OBJ_obj2txt() behaviour.
625 *) Add support for building of engines under engine/ as shared libraries
626 under VC++ build system.
629 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
630 Hopefully, we will not see any false combination of paths any more.
633 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
635 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
636 (part of SSL_OP_ALL). This option used to disable the
637 countermeasure against man-in-the-middle protocol-version
638 rollback in the SSL 2.0 server implementation, which is a bad
639 idea. (CVE-2005-2969)
641 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
642 for Information Security, National Institute of Advanced Industrial
643 Science and Technology [AIST], Japan)]
645 *) Add two function to clear and return the verify parameter flags.
648 *) Keep cipherlists sorted in the source instead of sorting them at
649 runtime, thus removing the need for a lock.
652 *) Avoid some small subgroup attacks in Diffie-Hellman.
653 [Nick Mathewson and Ben Laurie]
655 *) Add functions for well-known primes.
658 *) Extended Windows CE support.
659 [Satoshi Nakamura and Andy Polyakov]
661 *) Initialize SSL_METHOD structures at compile time instead of during
662 runtime, thus removing the need for a lock.
665 *) Make PKCS7_decrypt() work even if no certificate is supplied by
666 attempting to decrypt each encrypted key in turn. Add support to
670 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
672 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
675 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
678 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
679 key into the same file any more.
682 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
685 *) Add -utf8 command line and config file option to 'ca'.
686 [Stefan <stf@udoma.org]
688 *) Removed the macro des_crypt(), as it seems to conflict with some
689 libraries. Use DES_crypt().
692 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
693 involves renaming the source and generated shared-libs for
694 both. The engines will accept the corrected or legacy ids
695 ('ncipher' and '4758_cca' respectively) when binding. NB,
696 this only applies when building 'shared'.
697 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
699 *) Add attribute functions to EVP_PKEY structure. Modify
700 PKCS12_create() to recognize a CSP name attribute and
701 use it. Make -CSP option work again in pkcs12 utility.
704 *) Add new functionality to the bn blinding code:
705 - automatic re-creation of the BN_BLINDING parameters after
706 a fixed number of uses (currently 32)
707 - add new function for parameter creation
708 - introduce flags to control the update behaviour of the
709 BN_BLINDING parameters
710 - hide BN_BLINDING structure
711 Add a second BN_BLINDING slot to the RSA structure to improve
712 performance when a single RSA object is shared among several
716 *) Add support for DTLS.
717 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
719 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
720 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
723 *) Remove buggy and incompletet DH cert support from
724 ssl/ssl_rsa.c and ssl/s3_both.c
727 *) Use SHA-1 instead of MD5 as the default digest algorithm for
728 the apps/openssl applications.
731 *) Compile clean with "-Wall -Wmissing-prototypes
732 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
733 DEBUG_SAFESTACK must also be set.
736 *) Change ./Configure so that certain algorithms can be disabled by default.
737 The new counterpiece to "no-xxx" is "enable-xxx".
739 The patented RC5 and MDC2 algorithms will now be disabled unless
740 "enable-rc5" and "enable-mdc2", respectively, are specified.
742 (IDEA remains enabled despite being patented. This is because IDEA
743 is frequently required for interoperability, and there is no license
744 fee for non-commercial use. As before, "no-idea" can be used to
745 avoid this algorithm.)
749 *) Add processing of proxy certificates (see RFC 3820). This work was
750 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
751 EGEE (Enabling Grids for E-science in Europe).
754 *) RC4 performance overhaul on modern architectures/implementations, such
755 as Intel P4, IA-64 and AMD64.
758 *) New utility extract-section.pl. This can be used specify an alternative
759 section number in a pod file instead of having to treat each file as
760 a separate case in Makefile. This can be done by adding two lines to the
763 =for comment openssl_section:XXX
765 The blank line is mandatory.
769 *) New arguments -certform, -keyform and -pass for s_client and s_server
770 to allow alternative format key and certificate files and passphrase
774 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
775 update associated structures and add various utility functions.
777 Add new policy related verify parameters, include policy checking in
778 standard verify code. Enhance 'smime' application with extra parameters
779 to support policy checking and print out.
782 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
783 Nehemiah processors. These extensions support AES encryption in hardware
784 as well as RNG (though RNG support is currently disabled).
785 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
787 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
790 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
791 [Andy Polyakov and a number of other people]
793 *) Improved PowerPC platform support. Most notably BIGNUM assembler
794 implementation contributed by IBM.
795 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
797 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
798 exponent rather than 'unsigned long'. There is a corresponding change to
799 the new 'rsa_keygen' element of the RSA_METHOD structure.
800 [Jelte Jansen, Geoff Thorpe]
802 *) Functionality for creating the initial serial number file is now
803 moved from CA.pl to the 'ca' utility with a new option -create_serial.
805 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
806 number file to 1, which is bound to cause problems. To avoid
807 the problems while respecting compatibility between different 0.9.7
808 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
809 CA.pl for serial number initialization. With the new release 0.9.8,
810 we can fix the problem directly in the 'ca' utility.)
813 *) Reduced header interdepencies by declaring more opaque objects in
814 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
815 give fewer recursive includes, which could break lazy source code - so
816 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
817 developers should define this symbol when building and using openssl to
818 ensure they track the recommended behaviour, interfaces, [etc], but
819 backwards-compatible behaviour prevails when this isn't defined.
822 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
825 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
826 This will generate a random key of the appropriate length based on the
827 cipher context. The EVP_CIPHER can provide its own random key generation
828 routine to support keys of a specific form. This is used in the des and
829 3des routines to generate a key of the correct parity. Update S/MIME
830 code to use new functions and hence generate correct parity DES keys.
831 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
832 valid (weak or incorrect parity).
835 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
836 as looking them up. This is useful when the verified structure may contain
837 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
838 present unless the new PKCS7_NO_CRL flag is asserted.
841 *) Extend ASN1 oid configuration module. It now additionally accepts the
844 shortName = some long name, 1.2.3.4
847 *) Reimplemented the BN_CTX implementation. There is now no more static
848 limitation on the number of variables it can handle nor the depth of the
849 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
850 information can now expand as required, and rather than having a single
851 static array of bignums, BN_CTX now uses a linked-list of such arrays
852 allowing it to expand on demand whilst maintaining the usefulness of
856 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
857 to allow all RSA operations to function using a single BN_CTX.
860 *) Preliminary support for certificate policy evaluation and checking. This
861 is initially intended to pass the tests outlined in "Conformance Testing
862 of Relying Party Client Certificate Path Processing Logic" v1.07.
865 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
866 remained unused and not that useful. A variety of other little bignum
867 tweaks and fixes have also been made continuing on from the audit (see
871 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
872 associated ASN1, EVP and SSL functions and old ASN1 macros.
875 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
876 and this should never fail. So the return value from the use of
877 BN_set_word() (which can fail due to needless expansion) is now deprecated;
878 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
881 *) BN_CTX_get() should return zero-valued bignums, providing the same
882 initialised value as BN_new().
883 [Geoff Thorpe, suggested by Ulf Möller]
885 *) Support for inhibitAnyPolicy certificate extension.
888 *) An audit of the BIGNUM code is underway, for which debugging code is
889 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
890 is considered valid when processing BIGNUMs, and causes execution to
891 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
892 further steps are taken to deliberately pollute unused data in BIGNUM
893 structures to try and expose faulty code further on. For now, openssl will
894 (in its default mode of operation) continue to tolerate the inconsistent
895 forms that it has tolerated in the past, but authors and packagers should
896 consider trying openssl and their own applications when compiled with
897 these debugging symbols defined. It will help highlight potential bugs in
898 their own code, and will improve the test coverage for OpenSSL itself. At
899 some point, these tighter rules will become openssl's default to improve
900 maintainability, though the assert()s and other overheads will remain only
901 in debugging configurations. See bn.h for more details.
902 [Geoff Thorpe, Nils Larsch, Ulf Möller]
904 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
905 that can only be obtained through BN_CTX_new() (which implicitly
906 initialises it). The presence of this function only made it possible
907 to overwrite an existing structure (and cause memory leaks).
910 *) Because of the callback-based approach for implementing LHASH as a
911 template type, lh_insert() adds opaque objects to hash-tables and
912 lh_doall() or lh_doall_arg() are typically used with a destructor callback
913 to clean up those corresponding objects before destroying the hash table
914 (and losing the object pointers). So some over-zealous constifications in
915 LHASH have been relaxed so that lh_insert() does not take (nor store) the
916 objects as "const" and the lh_doall[_arg] callback wrappers are not
917 prototyped to have "const" restrictions on the object pointers they are
918 given (and so aren't required to cast them away any more).
921 *) The tmdiff.h API was so ugly and minimal that our own timing utility
922 (speed) prefers to use its own implementation. The two implementations
923 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
924 its object type properly exposed (MS_TM) instead of casting to/from "char
925 *". This may still change yet if someone realises MS_TM and "ms_time_***"
926 aren't necessarily the greatest nomenclatures - but this is what was used
927 internally to the implementation so I've used that for now.
930 *) Ensure that deprecated functions do not get compiled when
931 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
932 the self-tests were still using deprecated key-generation functions so
933 these have been updated also.
936 *) Reorganise PKCS#7 code to separate the digest location functionality
937 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
938 New function PKCS7_set_digest() to set the digest type for PKCS#7
939 digestedData type. Add additional code to correctly generate the
940 digestedData type and add support for this type in PKCS7 initialization
944 *) New function PKCS7_set0_type_other() this initializes a PKCS7
945 structure of type "other".
948 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
949 sure the loop does correctly stop and breaking ("division by zero")
950 modulus operations are not performed. The (pre-generated) prime
951 table crypto/bn/bn_prime.h was already correct, but it could not be
952 re-generated on some platforms because of the "division by zero"
953 situation in the script.
954 [Ralf S. Engelschall]
956 *) Update support for ECC-based TLS ciphersuites according to
957 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
958 SHA-1 now is only used for "small" curves (where the
959 representation of a field element takes up to 24 bytes); for
960 larger curves, the field element resulting from ECDH is directly
961 used as premaster secret.
962 [Douglas Stebila (Sun Microsystems Laboratories)]
964 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
965 curve secp160r1 to the tests.
966 [Douglas Stebila (Sun Microsystems Laboratories)]
968 *) Add the possibility to load symbols globally with DSO.
969 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
971 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
972 control of the error stack.
975 *) Add support for STORE in ENGINE.
978 *) Add the STORE type. The intention is to provide a common interface
979 to certificate and key stores, be they simple file-based stores, or
980 HSM-type store, or LDAP stores, or...
981 NOTE: The code is currently UNTESTED and isn't really used anywhere.
984 *) Add a generic structure called OPENSSL_ITEM. This can be used to
985 pass a list of arguments to any function as well as provide a way
986 for a function to pass data back to the caller.
989 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
990 works like BUF_strdup() but can be used to duplicate a portion of
991 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
995 *) Add the function sk_find_ex() which works like sk_find(), but will
996 return an index to an element even if an exact match couldn't be
997 found. The index is guaranteed to point at the element where the
998 searched-for key would be inserted to preserve sorting order.
1001 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1002 takes an extra flags argument for optional functionality. Currently,
1003 the following flags are defined:
1005 OBJ_BSEARCH_VALUE_ON_NOMATCH
1006 This one gets OBJ_bsearch_ex() to return a pointer to the first
1007 element where the comparing function returns a negative or zero
1010 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1011 This one gets OBJ_bsearch_ex() to return a pointer to the first
1012 element where the comparing function returns zero. This is useful
1013 if there are more than one element where the comparing function
1017 *) Make it possible to create self-signed certificates with 'openssl ca'
1018 in such a way that the self-signed certificate becomes part of the
1019 CA database and uses the same mechanisms for serial number generation
1020 as all other certificate signing. The new flag '-selfsign' enables
1021 this functionality. Adapt CA.sh and CA.pl.in.
1024 *) Add functionality to check the public key of a certificate request
1025 against a given private. This is useful to check that a certificate
1026 request can be signed by that key (self-signing).
1029 *) Make it possible to have multiple active certificates with the same
1030 subject in the CA index file. This is done only if the keyword
1031 'unique_subject' is set to 'no' in the main CA section (default
1032 if 'CA_default') of the configuration file. The value is saved
1033 with the database itself in a separate index attribute file,
1034 named like the index file with '.attr' appended to the name.
1037 *) Generate muti valued AVAs using '+' notation in config files for
1041 *) Support for nameConstraints certificate extension.
1044 *) Support for policyConstraints certificate extension.
1047 *) Support for policyMappings certificate extension.
1050 *) Make sure the default DSA_METHOD implementation only uses its
1051 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1052 and change its own handlers to be NULL so as to remove unnecessary
1053 indirection. This lets alternative implementations fallback to the
1054 default implementation more easily.
1057 *) Support for directoryName in GeneralName related extensions
1061 *) Make it possible to link applications using Makefile.shared.
1062 Make that possible even when linking against static libraries!
1065 *) Support for single pass processing for S/MIME signing. This now
1066 means that S/MIME signing can be done from a pipe, in addition
1067 cleartext signing (multipart/signed type) is effectively streaming
1068 and the signed data does not need to be all held in memory.
1070 This is done with a new flag PKCS7_STREAM. When this flag is set
1071 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1072 is done after the data is output (and digests calculated) in
1073 SMIME_write_PKCS7().
1076 *) Add full support for -rpath/-R, both in shared libraries and
1077 applications, at least on the platforms where it's known how
1081 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1082 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1083 will now compute a table of multiples of the generator that
1084 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1085 faster (notably in the case of a single point multiplication,
1086 scalar * generator).
1087 [Nils Larsch, Bodo Moeller]
1089 *) IPv6 support for certificate extensions. The various extensions
1090 which use the IP:a.b.c.d can now take IPv6 addresses using the
1091 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1095 *) Added an ENGINE that implements RSA by performing private key
1096 exponentiations with the GMP library. The conversions to and from
1097 GMP's mpz_t format aren't optimised nor are any montgomery forms
1098 cached, and on x86 it appears OpenSSL's own performance has caught up.
1099 However there are likely to be other architectures where GMP could
1100 provide a boost. This ENGINE is not built in by default, but it can be
1101 specified at Configure time and should be accompanied by the necessary
1102 linker additions, eg;
1103 ./config -DOPENSSL_USE_GMP -lgmp
1106 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1107 testing availability of engines with "-t" - the old behaviour is
1108 produced by increasing the feature's verbosity with "-tt".
1111 *) ECDSA routines: under certain error conditions uninitialized BN objects
1112 could be freed. Solution: make sure initialization is performed early
1113 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1117 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1118 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1119 software implementations. For DSA and DH, parameter generation can
1120 also be overriden by providing the appropriate method callbacks.
1123 *) Change the "progress" mechanism used in key-generation and
1124 primality testing to functions that take a new BN_GENCB pointer in
1125 place of callback/argument pairs. The new API functions have "_ex"
1126 postfixes and the older functions are reimplemented as wrappers for
1127 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1128 declarations of the old functions to help (graceful) attempts to
1129 migrate to the new functions. Also, the new key-generation API
1130 functions operate on a caller-supplied key-structure and return
1131 success/failure rather than returning a key or NULL - this is to
1132 help make "keygen" another member function of RSA_METHOD etc.
1134 Example for using the new callback interface:
1136 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1140 BN_GENCB_set(&my_cb, my_callback, my_arg);
1142 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1143 /* For the meaning of a, b in calls to my_callback(), see the
1144 * documentation of the function that calls the callback.
1145 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1146 * my_callback should return 1 if it wants BN_is_prime_ex()
1147 * to continue, or 0 to stop.
1152 *) Change the ZLIB compression method to be stateful, and make it
1153 available to TLS with the number defined in
1154 draft-ietf-tls-compression-04.txt.
1157 *) Add the ASN.1 structures and functions for CertificatePair, which
1158 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1160 CertificatePair ::= SEQUENCE {
1161 forward [0] Certificate OPTIONAL,
1162 reverse [1] Certificate OPTIONAL,
1163 -- at least one of the pair shall be present -- }
1165 Also implement the PEM functions to read and write certificate
1166 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1168 This needed to be defined, mostly for the sake of the LDAP
1169 attribute crossCertificatePair, but may prove useful elsewhere as
1173 *) Make it possible to inhibit symlinking of shared libraries in
1174 Makefile.shared, for Cygwin's sake.
1177 *) Extend the BIGNUM API by creating a function
1178 void BN_set_negative(BIGNUM *a, int neg);
1179 and a macro that behave like
1180 int BN_is_negative(const BIGNUM *a);
1182 to avoid the need to access 'a->neg' directly in applications.
1185 *) Implement fast modular reduction for pseudo-Mersenne primes
1186 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1187 EC_GROUP_new_curve_GFp() will now automatically use this
1189 [Nils Larsch <nla@trustcenter.de>]
1191 *) Add new lock type (CRYPTO_LOCK_BN).
1194 *) Change the ENGINE framework to automatically load engines
1195 dynamically from specific directories unless they could be
1196 found to already be built in or loaded. Move all the
1197 current engines except for the cryptodev one to a new
1199 The engines in engines/ are built as shared libraries if
1200 the "shared" options was given to ./Configure or ./config.
1201 Otherwise, they are inserted in libcrypto.a.
1202 /usr/local/ssl/engines is the default directory for dynamic
1203 engines, but that can be overriden at configure time through
1204 the usual use of --prefix and/or --openssldir, and at run
1205 time with the environment variable OPENSSL_ENGINES.
1206 [Geoff Thorpe and Richard Levitte]
1208 *) Add Makefile.shared, a helper makefile to build shared
1209 libraries. Addapt Makefile.org.
1212 *) Add version info to Win32 DLLs.
1213 [Peter 'Luna' Runestig" <peter@runestig.com>]
1215 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1216 can be added using this API to created arbitrary PKCS#12
1217 files while avoiding the low level API.
1219 New options to PKCS12_create(), key or cert can be NULL and
1220 will then be omitted from the output file. The encryption
1221 algorithm NIDs can be set to -1 for no encryption, the mac
1222 iteration count can be set to 0 to omit the mac.
1224 Enhance pkcs12 utility by making the -nokeys and -nocerts
1225 options work when creating a PKCS#12 file. New option -nomac
1226 to omit the mac, NONE can be set for an encryption algorithm.
1227 New code is modified to use the enhanced PKCS12_create()
1228 instead of the low level API.
1231 *) Extend ASN1 encoder to support indefinite length constructed
1232 encoding. This can output sequences tags and octet strings in
1233 this form. Modify pk7_asn1.c to support indefinite length
1234 encoding. This is experimental and needs additional code to
1235 be useful, such as an ASN1 bio and some enhanced streaming
1238 Extend template encode functionality so that tagging is passed
1239 down to the template encoder.
1242 *) Let 'openssl req' fail if an argument to '-newkey' is not
1243 recognized instead of using RSA as a default.
1246 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1247 As these are not official, they are not included in "ALL";
1248 the "ECCdraft" ciphersuite group alias can be used to select them.
1249 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1251 *) Add ECDH engine support.
1252 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1254 *) Add ECDH in new directory crypto/ecdh/.
1255 [Douglas Stebila (Sun Microsystems Laboratories)]
1257 *) Let BN_rand_range() abort with an error after 100 iterations
1258 without success (which indicates a broken PRNG).
1261 *) Change BN_mod_sqrt() so that it verifies that the input value
1262 is really the square of the return value. (Previously,
1263 BN_mod_sqrt would show GIGO behaviour.)
1266 *) Add named elliptic curves over binary fields from X9.62, SECG,
1267 and WAP/WTLS; add OIDs that were still missing.
1269 [Sheueling Chang Shantz and Douglas Stebila
1270 (Sun Microsystems Laboratories)]
1272 *) Extend the EC library for elliptic curves over binary fields
1273 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1276 EC_GF2m_simple_method
1280 EC_GROUP_new_curve_GF2m
1281 EC_GROUP_set_curve_GF2m
1282 EC_GROUP_get_curve_GF2m
1283 EC_POINT_set_affine_coordinates_GF2m
1284 EC_POINT_get_affine_coordinates_GF2m
1285 EC_POINT_set_compressed_coordinates_GF2m
1287 Point compression for binary fields is disabled by default for
1288 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1291 As binary polynomials are represented as BIGNUMs, various members
1292 of the EC_GROUP and EC_POINT data structures can be shared
1293 between the implementations for prime fields and binary fields;
1294 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1295 are essentially identical to their ..._GFp counterparts.
1296 (For simplicity, the '..._GFp' prefix has been dropped from
1297 various internal method names.)
1299 An internal 'field_div' method (similar to 'field_mul' and
1300 'field_sqr') has been added; this is used only for binary fields.
1302 [Sheueling Chang Shantz and Douglas Stebila
1303 (Sun Microsystems Laboratories)]
1305 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1306 through methods ('mul', 'precompute_mult').
1308 The generic implementations (now internally called 'ec_wNAF_mul'
1309 and 'ec_wNAF_precomputed_mult') remain the default if these
1310 methods are undefined.
1312 [Sheueling Chang Shantz and Douglas Stebila
1313 (Sun Microsystems Laboratories)]
1315 *) New function EC_GROUP_get_degree, which is defined through
1316 EC_METHOD. For curves over prime fields, this returns the bit
1317 length of the modulus.
1319 [Sheueling Chang Shantz and Douglas Stebila
1320 (Sun Microsystems Laboratories)]
1322 *) New functions EC_GROUP_dup, EC_POINT_dup.
1323 (These simply call ..._new and ..._copy).
1325 [Sheueling Chang Shantz and Douglas Stebila
1326 (Sun Microsystems Laboratories)]
1328 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1329 Polynomials are represented as BIGNUMs (where the sign bit is not
1330 used) in the following functions [macros]:
1333 BN_GF2m_sub [= BN_GF2m_add]
1334 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1335 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1336 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1338 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1339 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1340 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1341 BN_GF2m_cmp [= BN_ucmp]
1343 (Note that only the 'mod' functions are actually for fields GF(2^m).
1344 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1346 For some functions, an the irreducible polynomial defining a
1347 field can be given as an 'unsigned int[]' with strictly
1348 decreasing elements giving the indices of those bits that are set;
1349 i.e., p[] represents the polynomial
1350 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1352 p[0] > p[1] > ... > p[k] = 0.
1353 This applies to the following functions:
1358 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1359 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1361 BN_GF2m_mod_sqrt_arr
1362 BN_GF2m_mod_solve_quad_arr
1366 Conversion can be performed by the following functions:
1371 bntest.c has additional tests for binary polynomial arithmetic.
1373 Two implementations for BN_GF2m_mod_div() are available.
1374 The default algorithm simply uses BN_GF2m_mod_inv() and
1375 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1376 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1377 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1379 [Sheueling Chang Shantz and Douglas Stebila
1380 (Sun Microsystems Laboratories)]
1382 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1383 functionality is disabled at compile-time.
1384 [Douglas Stebila <douglas.stebila@sun.com>]
1386 *) Change default behaviour of 'openssl asn1parse' so that more
1387 information is visible when viewing, e.g., a certificate:
1389 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1390 mode the content of non-printable OCTET STRINGs is output in a
1391 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1392 avoid the appearance of a printable string.
1393 [Nils Larsch <nla@trustcenter.de>]
1395 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1397 EC_GROUP_set_asn1_flag()
1398 EC_GROUP_get_asn1_flag()
1399 EC_GROUP_set_point_conversion_form()
1400 EC_GROUP_get_point_conversion_form()
1401 These control ASN1 encoding details:
1402 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1403 has been set to OPENSSL_EC_NAMED_CURVE.
1404 - Points are encoded in uncompressed form by default; options for
1405 asn1_for are as for point2oct, namely
1406 POINT_CONVERSION_COMPRESSED
1407 POINT_CONVERSION_UNCOMPRESSED
1408 POINT_CONVERSION_HYBRID
1410 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1413 EC_GROUP_get0_seed()
1414 EC_GROUP_get_seed_len()
1415 This is used only for ASN1 purposes (so far).
1416 [Nils Larsch <nla@trustcenter.de>]
1418 *) Add 'field_type' member to EC_METHOD, which holds the NID
1419 of the appropriate field type OID. The new function
1420 EC_METHOD_get_field_type() returns this value.
1421 [Nils Larsch <nla@trustcenter.de>]
1426 EC_POINT_point2hex()
1427 EC_POINT_hex2point()
1428 providing useful interfaces to EC_POINT_point2oct() and
1429 EC_POINT_oct2point().
1430 [Nils Larsch <nla@trustcenter.de>]
1432 *) Change internals of the EC library so that the functions
1433 EC_GROUP_set_generator()
1434 EC_GROUP_get_generator()
1435 EC_GROUP_get_order()
1436 EC_GROUP_get_cofactor()
1437 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1438 to methods, which would lead to unnecessary code duplication when
1439 adding different types of curves.
1440 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1442 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1443 arithmetic, and such that modified wNAFs are generated
1444 (which avoid length expansion in many cases).
1447 *) Add a function EC_GROUP_check_discriminant() (defined via
1448 EC_METHOD) that verifies that the curve discriminant is non-zero.
1450 Add a function EC_GROUP_check() that makes some sanity tests
1451 on a EC_GROUP, its generator and order. This includes
1452 EC_GROUP_check_discriminant().
1453 [Nils Larsch <nla@trustcenter.de>]
1455 *) Add ECDSA in new directory crypto/ecdsa/.
1457 Add applications 'openssl ecparam' and 'openssl ecdsa'
1458 (these are based on 'openssl dsaparam' and 'openssl dsa').
1460 ECDSA support is also included in various other files across the
1461 library. Most notably,
1462 - 'openssl req' now has a '-newkey ecdsa:file' option;
1463 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1464 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1465 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1466 them suitable for ECDSA where domain parameters must be
1467 extracted before the specific public key;
1468 - ECDSA engine support has been added.
1469 [Nils Larsch <nla@trustcenter.de>]
1471 *) Include some named elliptic curves, and add OIDs from X9.62,
1472 SECG, and WAP/WTLS. Each curve can be obtained from the new
1474 EC_GROUP_new_by_curve_name(),
1475 and the list of available named curves can be obtained with
1476 EC_get_builtin_curves().
1477 Also add a 'curve_name' member to EC_GROUP objects, which can be
1479 EC_GROUP_set_curve_name()
1480 EC_GROUP_get_curve_name()
1481 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1483 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1484 was actually never needed) and in BN_mul(). The removal in BN_mul()
1485 required a small change in bn_mul_part_recursive() and the addition
1486 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1487 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1488 bn_sub_words() and bn_add_words() except they take arrays with
1492 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1494 *) In the SSL/TLS server implementation, be strict about session ID
1495 context matching (which matters if an application uses a single
1496 external cache for different purposes). Previously,
1497 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1498 set. This did ensure strict client verification, but meant that,
1499 with applications using a single external cache for quite
1500 different requirements, clients could circumvent ciphersuite
1501 restrictions for a given session ID context by starting a session
1502 in a different context.
1505 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1507 *) Cleanse PEM buffers before freeing them since they may contain
1509 [Benjamin Bennett <ben@psc.edu>]
1511 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1512 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1513 authentication-only ciphersuites.
1516 *) Since AES128 and AES256 share a single mask bit in the logic of
1517 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1518 kludge to work properly if AES128 is available and AES256 isn't.
1521 *) Expand security boundary to match 1.1.1 module.
1524 *) Remove redundant features: hash file source, editing of test vectors
1525 modify fipsld to use external fips_premain.c signature.
1528 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1529 run algorithm test programs.
1532 *) Make algorithm test programs more tolerant of whitespace.
1535 *) Have SSL/TLS server implementation tolerate "mismatched" record
1536 protocol version while receiving ClientHello even if the
1537 ClientHello is fragmented. (The server can't insist on the
1538 particular protocol version it has chosen before the ServerHello
1539 message has informed the client about his choice.)
1542 *) Load error codes if they are not already present instead of using a
1543 static variable. This allows them to be cleanly unloaded and reloaded.
1546 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1548 *) Introduce limits to prevent malicious keys being able to
1549 cause a denial of service. (CVE-2006-2940)
1550 [Steve Henson, Bodo Moeller]
1552 *) Fix ASN.1 parsing of certain invalid structures that can result
1553 in a denial of service. (CVE-2006-2937) [Steve Henson]
1555 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1556 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1558 *) Fix SSL client code which could crash if connecting to a
1559 malicious SSLv2 server. (CVE-2006-4343)
1560 [Tavis Ormandy and Will Drewry, Google Security Team]
1562 *) Change ciphersuite string processing so that an explicit
1563 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1564 will no longer include "AES128-SHA"), and any other similar
1565 ciphersuite (same bitmap) from *other* protocol versions (so that
1566 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1567 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1568 changes from 0.9.8b and 0.9.8d.
1571 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1573 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1574 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1576 *) Change the Unix randomness entropy gathering to use poll() when
1577 possible instead of select(), since the latter has some
1578 undesirable limitations.
1579 [Darryl Miles via Richard Levitte and Bodo Moeller]
1581 *) Disable rogue ciphersuites:
1583 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1584 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1585 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1587 The latter two were purportedly from
1588 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1591 Also deactive the remaining ciphersuites from
1592 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1593 unofficial, and the ID has long expired.
1596 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1597 dual-core machines) and other potential thread-safety issues.
1600 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1602 *) Adapt fipsld and the build system to link against the validated FIPS
1603 module in FIPS mode.
1606 *) Fixes for VC++ 2005 build under Windows.
1609 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1610 from a Windows bash shell such as MSYS. It is autodetected from the
1611 "config" script when run from a VC++ environment. Modify standard VC++
1612 build to use fipscanister.o from the GNU make build.
1615 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1617 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1618 The value now differs depending on if you build for FIPS or not.
1619 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1620 safely run with a non-FIPSed libcrypto, as it may crash because of
1621 the difference induced by this change.
1624 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1626 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1627 (part of SSL_OP_ALL). This option used to disable the
1628 countermeasure against man-in-the-middle protocol-version
1629 rollback in the SSL 2.0 server implementation, which is a bad
1630 idea. (CVE-2005-2969)
1632 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1633 for Information Security, National Institute of Advanced Industrial
1634 Science and Technology [AIST], Japan)]
1636 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1637 mainly for FIPS compliance and not fully integrated at this stage.
1640 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1641 the exponentiation using a fixed-length exponent. (Otherwise,
1642 the information leaked through timing could expose the secret key
1643 after many signatures; cf. Bleichenbacher's attack on DSA with
1647 *) Make a new fixed-window mod_exp implementation the default for
1648 RSA, DSA, and DH private-key operations so that the sequence of
1649 squares and multiplies and the memory access pattern are
1650 independent of the particular secret key. This will mitigate
1651 cache-timing and potential related attacks.
1653 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1654 and this is automatically used by BN_mod_exp_mont() if the new flag
1655 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1656 will use this BN flag for private exponents unless the flag
1657 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1658 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1660 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1662 *) Change the client implementation for SSLv23_method() and
1663 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1664 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1665 (Previously, the SSL 2.0 backwards compatible Client Hello
1666 message format would be used even with SSL_OP_NO_SSLv2.)
1669 *) Add support for smime-type MIME parameter in S/MIME messages which some
1673 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1674 a threadsafe manner. Modify rsa code to use new function and add calls
1675 to dsa and dh code (which had race conditions before).
1678 *) Include the fixed error library code in the C error file definitions
1679 instead of fixing them up at runtime. This keeps the error code
1680 structures constant.
1683 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1685 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1688 *) Fixes for newer kerberos headers. NB: the casts are needed because
1689 the 'length' field is signed on one version and unsigned on another
1690 with no (?) obvious way to tell the difference, without these VC++
1691 complains. Also the "definition" of FAR (blank) is no longer included
1692 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1693 some needed definitions.
1696 *) Undo Cygwin change.
1699 *) Added support for proxy certificates according to RFC 3820.
1700 Because they may be a security thread to unaware applications,
1701 they must be explicitely allowed in run-time. See
1702 docs/HOWTO/proxy_certificates.txt for further information.
1705 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1707 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1708 server and client random values. Previously
1709 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1710 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1712 This change has negligible security impact because:
1714 1. Server and client random values still have 24 bytes of pseudo random
1717 2. Server and client random values are sent in the clear in the initial
1720 3. The master secret is derived using the premaster secret (48 bytes in
1721 size for static RSA ciphersuites) as well as client server and random
1724 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1727 [Stephen Henson, reported by UK NISCC]
1729 *) Use Windows randomness collection on Cygwin.
1732 *) Fix hang in EGD/PRNGD query when communication socket is closed
1733 prematurely by EGD/PRNGD.
1734 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1736 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1739 *) Back-port of selected performance improvements from development
1740 branch, as well as improved support for PowerPC platforms.
1743 *) Add lots of checks for memory allocation failure, error codes to indicate
1744 failure and freeing up memory if a failure occurs.
1745 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1747 *) Add new -passin argument to dgst.
1750 *) Perform some character comparisons of different types in X509_NAME_cmp:
1751 this is needed for some certificates that reencode DNs into UTF8Strings
1752 (in violation of RFC3280) and can't or wont issue name rollover
1756 *) Make an explicit check during certificate validation to see that
1757 the CA setting in each certificate on the chain is correct. As a
1758 side effect always do the following basic checks on extensions,
1759 not just when there's an associated purpose to the check:
1761 - if there is an unhandled critical extension (unless the user
1762 has chosen to ignore this fault)
1763 - if the path length has been exceeded (if one is set at all)
1764 - that certain extensions fit the associated purpose (if one has
1768 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1770 *) Avoid a race condition when CRLs are checked in a multi threaded
1771 environment. This would happen due to the reordering of the revoked
1772 entries during signature checking and serial number lookup. Now the
1773 encoding is cached and the serial number sort performed under a lock.
1774 Add new STACK function sk_is_sorted().
1777 *) Add Delta CRL to the extension code.
1780 *) Various fixes to s3_pkt.c so alerts are sent properly.
1781 [David Holmes <d.holmes@f5.com>]
1783 *) Reduce the chances of duplicate issuer name and serial numbers (in
1784 violation of RFC3280) using the OpenSSL certificate creation utilities.
1785 This is done by creating a random 64 bit value for the initial serial
1786 number when a serial number file is created or when a self signed
1787 certificate is created using 'openssl req -x509'. The initial serial
1788 number file is created using 'openssl x509 -next_serial' in CA.pl
1789 rather than being initialized to 1.
1792 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1794 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1795 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1796 [Joe Orton, Steve Henson]
1798 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1800 [Joe Orton, Steve Henson]
1802 *) Make it possible to have multiple active certificates with the same
1803 subject in the CA index file. This is done only if the keyword
1804 'unique_subject' is set to 'no' in the main CA section (default
1805 if 'CA_default') of the configuration file. The value is saved
1806 with the database itself in a separate index attribute file,
1807 named like the index file with '.attr' appended to the name.
1810 *) X509 verify fixes. Disable broken certificate workarounds when
1811 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1812 keyUsage extension present. Don't accept CRLs with unhandled critical
1813 extensions: since verify currently doesn't process CRL extensions this
1814 rejects a CRL with *any* critical extensions. Add new verify error codes
1818 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1819 A clarification of RFC2560 will require the use of OCTET STRINGs and
1820 some implementations cannot handle the current raw format. Since OpenSSL
1821 copies and compares OCSP nonces as opaque blobs without any attempt at
1822 parsing them this should not create any compatibility issues.
1825 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1826 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1827 this HMAC (and other) operations are several times slower than OpenSSL
1831 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1832 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1834 *) Use the correct content when signing type "other".
1837 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1839 *) Fix various bugs revealed by running the NISCC test suite:
1841 Stop out of bounds reads in the ASN1 code when presented with
1842 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1844 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1846 If verify callback ignores invalid public key errors don't try to check
1847 certificate signature with the NULL public key.
1851 *) New -ignore_err option in ocsp application to stop the server
1852 exiting on the first error in a request.
1855 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1856 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1860 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1861 extra data after the compression methods not only for TLS 1.0
1862 but also for SSL 3.0 (as required by the specification).
1863 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1865 *) Change X509_certificate_type() to mark the key as exported/exportable
1866 when it's 512 *bits* long, not 512 bytes.
1869 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1870 blocks during encryption.
1873 *) Various fixes to base64 BIO and non blocking I/O. On write
1874 flushes were not handled properly if the BIO retried. On read
1875 data was not being buffered properly and had various logic bugs.
1876 This also affects blocking I/O when the data being decoded is a
1880 *) Various S/MIME bugfixes and compatibility changes:
1881 output correct application/pkcs7 MIME type if
1882 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1883 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1884 of files as .eml work). Correctly handle very long lines in MIME
1888 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1890 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1891 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1892 a protocol version number mismatch like a decryption error
1893 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1896 *) Turn on RSA blinding by default in the default implementation
1897 to avoid a timing attack. Applications that don't want it can call
1898 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1899 They would be ill-advised to do so in most cases.
1900 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1902 *) Change RSA blinding code so that it works when the PRNG is not
1903 seeded (in this case, the secret RSA exponent is abused as
1904 an unpredictable seed -- if it is not unpredictable, there
1905 is no point in blinding anyway). Make RSA blinding thread-safe
1906 by remembering the creator's thread ID in rsa->blinding and
1907 having all other threads use local one-time blinding factors
1908 (this requires more computation than sharing rsa->blinding, but
1909 avoids excessive locking; and if an RSA object is not shared
1910 between threads, blinding will still be very fast).
1913 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1914 ENGINE as defaults for all supported algorithms irrespective of
1915 the 'flags' parameter. 'flags' is now honoured, so applications
1916 should make sure they are passing it correctly.
1919 *) Target "mingw" now allows native Windows code to be generated in
1920 the Cygwin environment as well as with the MinGW compiler.
1923 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1925 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1926 via timing by performing a MAC computation even if incorrrect
1927 block cipher padding has been found. This is a countermeasure
1928 against active attacks where the attacker has to distinguish
1929 between bad padding and a MAC verification error. (CVE-2003-0078)
1931 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1932 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1933 Martin Vuagnoux (EPFL, Ilion)]
1935 *) Make the no-err option work as intended. The intention with no-err
1936 is not to have the whole error stack handling routines removed from
1937 libcrypto, it's only intended to remove all the function name and
1938 reason texts, thereby removing some of the footprint that may not
1939 be interesting if those errors aren't displayed anyway.
1941 NOTE: it's still possible for any application or module to have it's
1942 own set of error texts inserted. The routines are there, just not
1943 used by default when no-err is given.
1946 *) Add support for FreeBSD on IA64.
1947 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1949 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1950 Kerberos function mit_des_cbc_cksum(). Before this change,
1951 the value returned by DES_cbc_cksum() was like the one from
1952 mit_des_cbc_cksum(), except the bytes were swapped.
1953 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1955 *) Allow an application to disable the automatic SSL chain building.
1956 Before this a rather primitive chain build was always performed in
1957 ssl3_output_cert_chain(): an application had no way to send the
1958 correct chain if the automatic operation produced an incorrect result.
1960 Now the chain builder is disabled if either:
1962 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1964 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1966 The reasoning behind this is that an application would not want the
1967 auto chain building to take place if extra chain certificates are
1968 present and it might also want a means of sending no additional
1969 certificates (for example the chain has two certificates and the
1973 *) Add the possibility to build without the ENGINE framework.
1974 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1976 *) Under Win32 gmtime() can return NULL: check return value in
1977 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1980 *) DSA routines: under certain error conditions uninitialized BN objects
1981 could be freed. Solution: make sure initialization is performed early
1982 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1983 Nils Larsch <nla@trustcenter.de> via PR#459)
1986 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1987 checked on reconnect on the client side, therefore session resumption
1988 could still fail with a "ssl session id is different" error. This
1989 behaviour is masked when SSL_OP_ALL is used due to
1990 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1991 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1992 followup to PR #377.
1995 *) IA-32 assembler support enhancements: unified ELF targets, support
1996 for SCO/Caldera platforms, fix for Cygwin shared build.
1999 *) Add support for FreeBSD on sparc64. As a consequence, support for
2000 FreeBSD on non-x86 processors is separate from x86 processors on
2001 the config script, much like the NetBSD support.
2002 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2004 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2006 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2009 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2010 code (06) was taken as the first octet of the session ID and the last
2011 octet was ignored consequently. As a result SSLv2 client side session
2012 caching could not have worked due to the session ID mismatch between
2014 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2018 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2019 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2023 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2024 seems that in spite of existing for more than a year, many application
2025 author have done nothing to provide the necessary callbacks, which
2026 means that this particular engine will not work properly anywhere.
2027 This is a very unfortunate situation which forces us, in the name
2028 of usability, to give the hw_ncipher.c a static lock, which is part
2030 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2031 appear in 0.9.8 or later. We EXPECT application authors to have
2032 dealt properly with this when 0.9.8 is released (unless we actually
2033 make such changes in the libcrypto locking code that changes will
2034 have to be made anyway).
2037 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2038 octets have been read, EOF or an error occurs. Without this change
2039 some truncated ASN1 structures will not produce an error.
2042 *) Disable Heimdal support, since it hasn't been fully implemented.
2043 Still give the possibility to force the use of Heimdal, but with
2044 warnings and a request that patches get sent to openssl-dev.
2047 *) Add the VC-CE target, introduce the WINCE sysname, and add
2048 INSTALL.WCE and appropriate conditionals to make it build.
2049 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2051 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2052 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2053 edit numbers of the version.
2054 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2056 *) Introduce safe string copy and catenation functions
2057 (BUF_strlcpy() and BUF_strlcat()).
2058 [Ben Laurie (CHATS) and Richard Levitte]
2060 *) Avoid using fixed-size buffers for one-line DNs.
2061 [Ben Laurie (CHATS)]
2063 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2064 resizing buffers containing secrets, and use where appropriate.
2065 [Ben Laurie (CHATS)]
2067 *) Avoid using fixed size buffers for configuration file location.
2068 [Ben Laurie (CHATS)]
2070 *) Avoid filename truncation for various CA files.
2071 [Ben Laurie (CHATS)]
2073 *) Use sizeof in preference to magic numbers.
2074 [Ben Laurie (CHATS)]
2076 *) Avoid filename truncation in cert requests.
2077 [Ben Laurie (CHATS)]
2079 *) Add assertions to check for (supposedly impossible) buffer
2081 [Ben Laurie (CHATS)]
2083 *) Don't cache truncated DNS entries in the local cache (this could
2084 potentially lead to a spoofing attack).
2085 [Ben Laurie (CHATS)]
2087 *) Fix various buffers to be large enough for hex/decimal
2088 representations in a platform independent manner.
2089 [Ben Laurie (CHATS)]
2091 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2092 resizing buffers containing secrets, and use where appropriate.
2093 [Ben Laurie (CHATS)]
2095 *) Add BIO_indent() to avoid much slightly worrying code to do
2097 [Ben Laurie (CHATS)]
2099 *) Convert sprintf()/BIO_puts() to BIO_printf().
2100 [Ben Laurie (CHATS)]
2102 *) buffer_gets() could terminate with the buffer only half
2104 [Ben Laurie (CHATS)]
2106 *) Add assertions to prevent user-supplied crypto functions from
2107 overflowing internal buffers by having large block sizes, etc.
2108 [Ben Laurie (CHATS)]
2110 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2112 [Ben Laurie (CHATS)]
2114 *) Eliminate unused copy of key in RC4.
2115 [Ben Laurie (CHATS)]
2117 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2118 [Ben Laurie (CHATS)]
2120 *) Fix off-by-one error in EGD path.
2121 [Ben Laurie (CHATS)]
2123 *) If RANDFILE path is too long, ignore instead of truncating.
2124 [Ben Laurie (CHATS)]
2126 *) Eliminate unused and incorrectly sized X.509 structure
2128 [Ben Laurie (CHATS)]
2130 *) Eliminate unused and dangerous function knumber().
2131 [Ben Laurie (CHATS)]
2133 *) Eliminate unused and dangerous structure, KSSL_ERR.
2134 [Ben Laurie (CHATS)]
2136 *) Protect against overlong session ID context length in an encoded
2137 session object. Since these are local, this does not appear to be
2139 [Ben Laurie (CHATS)]
2141 *) Change from security patch (see 0.9.6e below) that did not affect
2142 the 0.9.6 release series:
2144 Remote buffer overflow in SSL3 protocol - an attacker could
2145 supply an oversized master key in Kerberos-enabled versions.
2147 [Ben Laurie (CHATS)]
2149 *) Change the SSL kerb5 codes to match RFC 2712.
2152 *) Make -nameopt work fully for req and add -reqopt switch.
2153 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2155 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2156 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2158 *) Make sure tests can be performed even if the corresponding algorithms
2159 have been removed entirely. This was also the last step to make
2160 OpenSSL compilable with DJGPP under all reasonable conditions.
2161 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2163 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2164 to allow version independent disabling of normally unselected ciphers,
2165 which may be activated as a side-effect of selecting a single cipher.
2167 (E.g., cipher list string "RSA" enables ciphersuites that are left
2168 out of "ALL" because they do not provide symmetric encryption.
2169 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2170 [Lutz Jaenicke, Bodo Moeller]
2172 *) Add appropriate support for separate platform-dependent build
2173 directories. The recommended way to make a platform-dependent
2174 build directory is the following (tested on Linux), maybe with
2177 # Place yourself outside of the OpenSSL source tree. In
2178 # this example, the environment variable OPENSSL_SOURCE
2179 # is assumed to contain the absolute OpenSSL source directory.
2180 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2181 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2182 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2183 mkdir -p `dirname $F`
2184 ln -s $OPENSSL_SOURCE/$F $F
2187 To be absolutely sure not to disturb the source tree, a "make clean"
2188 is a good thing. If it isn't successfull, don't worry about it,
2189 it probably means the source directory is very clean.
2192 *) Make sure any ENGINE control commands make local copies of string
2193 pointers passed to them whenever necessary. Otherwise it is possible
2194 the caller may have overwritten (or deallocated) the original string
2195 data when a later ENGINE operation tries to use the stored values.
2196 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2198 *) Improve diagnostics in file reading and command-line digests.
2199 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2201 *) Add AES modes CFB and OFB to the object database. Correct an
2202 error in AES-CFB decryption.
2205 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2206 allows existing EVP_CIPHER_CTX structures to be reused after
2207 calling EVP_*Final(). This behaviour is used by encryption
2208 BIOs and some applications. This has the side effect that
2209 applications must explicitly clean up cipher contexts with
2210 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2213 *) Check the values of dna and dnb in bn_mul_recursive before calling
2214 bn_mul_comba (a non zero value means the a or b arrays do not contain
2215 n2 elements) and fallback to bn_mul_normal if either is not zero.
2218 *) Fix escaping of non-ASCII characters when using the -subj option
2219 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2222 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2223 form for "surname", serialNumber has no short form.
2224 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2225 therefore remove "mail" short name for "internet 7".
2226 The OID for unique identifiers in X509 certificates is
2227 x500UniqueIdentifier, not uniqueIdentifier.
2228 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2231 *) Add an "init" command to the ENGINE config module and auto initialize
2232 ENGINEs. Without any "init" command the ENGINE will be initialized
2233 after all ctrl commands have been executed on it. If init=1 the
2234 ENGINE is initailized at that point (ctrls before that point are run
2235 on the uninitialized ENGINE and after on the initialized one). If
2236 init=0 then the ENGINE will not be iniatialized at all.
2239 *) Fix the 'app_verify_callback' interface so that the user-defined
2240 argument is actually passed to the callback: In the
2241 SSL_CTX_set_cert_verify_callback() prototype, the callback
2242 declaration has been changed from
2245 int (*cb)(X509_STORE_CTX *,void *);
2246 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2247 i=s->ctx->app_verify_callback(&ctx)
2248 has been changed into
2249 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2251 To update applications using SSL_CTX_set_cert_verify_callback(),
2252 a dummy argument can be added to their callback functions.
2253 [D. K. Smetters <smetters@parc.xerox.com>]
2255 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2256 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2258 *) Add and OPENSSL_LOAD_CONF define which will cause
2259 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2260 This allows older applications to transparently support certain
2261 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2262 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2263 load the config file and OPENSSL_add_all_algorithms_conf() which will
2264 always load it have also been added.
2267 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2268 Adjust NIDs and EVP layer.
2269 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2271 *) Config modules support in openssl utility.
2273 Most commands now load modules from the config file,
2274 though in a few (such as version) this isn't done
2275 because it couldn't be used for anything.
2277 In the case of ca and req the config file used is
2278 the same as the utility itself: that is the -config
2279 command line option can be used to specify an
2283 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2284 use "openssl_conf" if filename is NULL use default openssl config file.
2287 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2288 config section name. Add a new flag to tolerate a missing config file
2289 and move code to CONF_modules_load_file().
2292 *) Support for crypto accelerator cards from Accelerated Encryption
2293 Processing, www.aep.ie. (Use engine 'aep')
2294 The support was copied from 0.9.6c [engine] and adapted/corrected
2295 to work with the new engine framework.
2296 [AEP Inc. and Richard Levitte]
2298 *) Support for SureWare crypto accelerator cards from Baltimore
2299 Technologies. (Use engine 'sureware')
2300 The support was copied from 0.9.6c [engine] and adapted
2301 to work with the new engine framework.
2304 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2305 make the newer ENGINE framework commands for the CHIL engine work.
2306 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2308 *) Make it possible to produce shared libraries on ReliantUNIX.
2309 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2311 *) Add the configuration target debug-linux-ppro.
2312 Make 'openssl rsa' use the general key loading routines
2313 implemented in apps.c, and make those routines able to
2314 handle the key format FORMAT_NETSCAPE and the variant
2316 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2318 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2319 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2321 *) Add -keyform to rsautl, and document -engine.
2322 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2324 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2325 BIO_R_NO_SUCH_FILE error code rather than the generic
2326 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2329 *) Add new functions
2331 ERR_peek_last_error_line
2332 ERR_peek_last_error_line_data.
2333 These are similar to
2336 ERR_peek_error_line_data,
2337 but report on the latest error recorded rather than the first one
2338 still in the error queue.
2339 [Ben Laurie, Bodo Moeller]
2341 *) default_algorithms option in ENGINE config module. This allows things
2343 default_algorithms = ALL
2344 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2347 *) Prelminary ENGINE config module.
2350 *) New experimental application configuration code.
2353 *) Change the AES code to follow the same name structure as all other
2354 symmetric ciphers, and behave the same way. Move everything to
2355 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2356 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2358 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2359 [Ben Laurie and Theo de Raadt]
2361 *) Add option to output public keys in req command.
2362 [Massimiliano Pala madwolf@openca.org]
2364 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2365 (up to about 10% better than before for P-192 and P-224).
2368 *) New functions/macros
2370 SSL_CTX_set_msg_callback(ctx, cb)
2371 SSL_CTX_set_msg_callback_arg(ctx, arg)
2372 SSL_set_msg_callback(ssl, cb)
2373 SSL_set_msg_callback_arg(ssl, arg)
2375 to request calling a callback function
2377 void cb(int write_p, int version, int content_type,
2378 const void *buf, size_t len, SSL *ssl, void *arg)
2380 whenever a protocol message has been completely received
2381 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2382 protocol version according to which the SSL library interprets
2383 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2384 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2385 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2386 specification (change_cipher_spec(20), alert(21), handshake(22)).
2387 'buf' and 'len' point to the actual message, 'ssl' to the
2388 SSL object, and 'arg' is the application-defined value set by
2389 SSL[_CTX]_set_msg_callback_arg().
2391 'openssl s_client' and 'openssl s_server' have new '-msg' options
2392 to enable a callback that displays all protocol messages.
2395 *) Change the shared library support so shared libraries are built as
2396 soon as the corresponding static library is finished, and thereby get
2397 openssl and the test programs linked against the shared library.
2398 This still only happens when the keyword "shard" has been given to
2399 the configuration scripts.
2401 NOTE: shared library support is still an experimental thing, and
2402 backward binary compatibility is still not guaranteed.
2403 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2405 *) Add support for Subject Information Access extension.
2406 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2408 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2409 additional bytes when new memory had to be allocated, not just
2410 when reusing an existing buffer.
2413 *) New command line and configuration option 'utf8' for the req command.
2414 This allows field values to be specified as UTF8 strings.
2417 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2418 runs for the former and machine-readable output for the latter.
2421 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2422 of the e-mail address in the DN (i.e., it will go into a certificate
2423 extension only). The new configuration file option 'email_in_dn = no'
2424 has the same effect.
2425 [Massimiliano Pala madwolf@openca.org]
2427 *) Change all functions with names starting with des_ to be starting
2428 with DES_ instead. Add wrappers that are compatible with libdes,
2429 but are named _ossl_old_des_*. Finally, add macros that map the
2430 des_* symbols to the corresponding _ossl_old_des_* if libdes
2431 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2432 desired, the des_* symbols will be mapped to DES_*, with one
2435 Since we provide two compatibility mappings, the user needs to
2436 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2437 compatibility is desired. The default (i.e., when that macro
2438 isn't defined) is OpenSSL 0.9.6c compatibility.
2440 There are also macros that enable and disable the support of old
2441 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2442 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2443 are defined, the default will apply: to support the old des routines.
2445 In either case, one must include openssl/des.h to get the correct
2446 definitions. Do not try to just include openssl/des_old.h, that
2449 NOTE: This is a major break of an old API into a new one. Software
2450 authors are encouraged to switch to the DES_ style functions. Some
2451 time in the future, des_old.h and the libdes compatibility functions
2452 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2453 default), and then completely removed.
2456 *) Test for certificates which contain unsupported critical extensions.
2457 If such a certificate is found during a verify operation it is
2458 rejected by default: this behaviour can be overridden by either
2459 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2460 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2461 X509_supported_extension() has also been added which returns 1 if a
2462 particular extension is supported.
2465 *) Modify the behaviour of EVP cipher functions in similar way to digests
2466 to retain compatibility with existing code.
2469 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2470 compatibility with existing code. In particular the 'ctx' parameter does
2471 not have to be to be initialized before the call to EVP_DigestInit() and
2472 it is tidied up after a call to EVP_DigestFinal(). New function
2473 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2474 EVP_MD_CTX_copy() changed to not require the destination to be
2475 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2476 requires the destination to be valid.
2478 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2479 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2482 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2483 so that complete 'Handshake' protocol structures are kept in memory
2484 instead of overwriting 'msg_type' and 'length' with 'body' data.
2487 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2488 [Massimo Santin via Richard Levitte]
2490 *) Major restructuring to the underlying ENGINE code. This includes
2491 reduction of linker bloat, separation of pure "ENGINE" manipulation
2492 (initialisation, etc) from functionality dealing with implementations
2493 of specific crypto iterfaces. This change also introduces integrated
2494 support for symmetric ciphers and digest implementations - so ENGINEs
2495 can now accelerate these by providing EVP_CIPHER and EVP_MD
2496 implementations of their own. This is detailed in crypto/engine/README
2497 as it couldn't be adequately described here. However, there are a few
2498 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2499 were changed in the original introduction of ENGINE code have now
2500 reverted back - the hooking from this code to ENGINE is now a good
2501 deal more passive and at run-time, operations deal directly with
2502 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2503 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2504 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2505 they were not being used by the framework as there is no concept of a
2506 BIGNUM_METHOD and they could not be generalised to the new
2507 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2508 ENGINE_cpy() has been removed as it cannot be consistently defined in
2512 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2515 *) Change mkdef.pl to sort symbols that get the same entry number,
2516 and make sure the automatically generated functions ERR_load_*
2517 become part of libeay.num as well.
2520 *) New function SSL_renegotiate_pending(). This returns true once
2521 renegotiation has been requested (either SSL_renegotiate() call
2522 or HelloRequest/ClientHello receveived from the peer) and becomes
2523 false once a handshake has been completed.
2524 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2525 sends a HelloRequest, but does not ensure that a handshake takes
2526 place. SSL_renegotiate_pending() is useful for checking if the
2527 client has followed the request.)
2530 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2531 By default, clients may request session resumption even during
2532 renegotiation (if session ID contexts permit); with this option,
2533 session resumption is possible only in the first handshake.
2535 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2536 more bits available for options that should not be part of
2537 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2540 *) Add some demos for certificate and certificate request creation.
2543 *) Make maximum certificate chain size accepted from the peer application
2544 settable (SSL*_get/set_max_cert_list()), as proposed by
2545 "Douglas E. Engert" <deengert@anl.gov>.
2548 *) Add support for shared libraries for Unixware-7
2549 (Boyd Lynn Gerber <gerberb@zenez.com>).
2552 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2553 be done prior to destruction. Use this to unload error strings from
2554 ENGINEs that load their own error strings. NB: This adds two new API
2555 functions to "get" and "set" this destroy handler in an ENGINE.
2558 *) Alter all existing ENGINE implementations (except "openssl" and
2559 "openbsd") to dynamically instantiate their own error strings. This
2560 makes them more flexible to be built both as statically-linked ENGINEs
2561 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2562 Also, add stub code to each that makes building them as self-contained
2563 shared-libraries easier (see README.ENGINE).
2566 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2567 implementations into applications that are completely implemented in
2568 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2569 commands that can be used to configure what shared-library to load and
2570 to control aspects of the way it is handled. Also, made an update to
2571 the README.ENGINE file that brings its information up-to-date and
2572 provides some information and instructions on the "dynamic" ENGINE
2573 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2576 *) Make it possible to unload ranges of ERR strings with a new
2577 "ERR_unload_strings" function.
2580 *) Add a copy() function to EVP_MD.
2583 *) Make EVP_MD routines take a context pointer instead of just the
2584 md_data void pointer.
2587 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2588 that the digest can only process a single chunk of data
2589 (typically because it is provided by a piece of
2590 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2591 is only going to provide a single chunk of data, and hence the
2592 framework needn't accumulate the data for oneshot drivers.
2595 *) As with "ERR", make it possible to replace the underlying "ex_data"
2596 functions. This change also alters the storage and management of global
2597 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2598 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2599 index counters. The API functions that use this state have been changed
2600 to take a "class_index" rather than pointers to the class's local STACK
2601 and counter, and there is now an API function to dynamically create new
2602 classes. This centralisation allows us to (a) plug a lot of the
2603 thread-safety problems that existed, and (b) makes it possible to clean
2604 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2605 such data would previously have always leaked in application code and
2606 workarounds were in place to make the memory debugging turn a blind eye
2607 to it. Application code that doesn't use this new function will still
2608 leak as before, but their memory debugging output will announce it now
2609 rather than letting it slide.
2611 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2612 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2613 has a return value to indicate success or failure.
2616 *) Make it possible to replace the underlying "ERR" functions such that the
2617 global state (2 LHASH tables and 2 locks) is only used by the "default"
2618 implementation. This change also adds two functions to "get" and "set"
2619 the implementation prior to it being automatically set the first time
2620 any other ERR function takes place. Ie. an application can call "get",
2621 pass the return value to a module it has just loaded, and that module
2622 can call its own "set" function using that value. This means the
2623 module's "ERR" operations will use (and modify) the error state in the
2624 application and not in its own statically linked copy of OpenSSL code.
2627 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2628 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2629 the operation, and provides a more encapsulated way for external code
2630 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2631 to use these functions rather than manually incrementing the counts.
2633 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2636 *) Add EVP test program.
2639 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2642 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2643 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2644 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2645 These allow a CRL to be built without having to access X509_CRL fields
2646 directly. Modify 'ca' application to use new functions.
2649 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2650 bug workarounds. Rollback attack detection is a security feature.
2651 The problem will only arise on OpenSSL servers when TLSv1 is not
2652 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2653 Software authors not wanting to support TLSv1 will have special reasons
2654 for their choice and can explicitly enable this option.
2655 [Bodo Moeller, Lutz Jaenicke]
2657 *) Rationalise EVP so it can be extended: don't include a union of
2658 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2659 (similar to those existing for EVP_CIPHER_CTX).
2664 EVP_MD_CTX_init(&md); /* new function call */
2665 EVP_DigestInit(&md, EVP_sha1());
2666 EVP_DigestUpdate(&md, in, len);
2667 EVP_DigestFinal(&md, out, NULL);
2668 EVP_MD_CTX_cleanup(&md); /* new function call */
2672 *) Make DES key schedule conform to the usual scheme, as well as
2673 correcting its structure. This means that calls to DES functions
2674 now have to pass a pointer to a des_key_schedule instead of a
2675 plain des_key_schedule (which was actually always a pointer
2678 des_key_schedule ks;
2680 des_set_key_checked(..., &ks);
2681 des_ncbc_encrypt(..., &ks, ...);
2683 (Note that a later change renames 'des_...' into 'DES_...'.)
2686 *) Initial reduction of linker bloat: the use of some functions, such as
2687 PEM causes large amounts of unused functions to be linked in due to
2688 poor organisation. For example pem_all.c contains every PEM function
2689 which has a knock on effect of linking in large amounts of (unused)
2690 ASN1 code. Grouping together similar functions and splitting unrelated
2691 functions prevents this.
2694 *) Cleanup of EVP macros.
2697 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2698 correct _ecb suffix.
2701 *) Add initial OCSP responder support to ocsp application. The
2702 revocation information is handled using the text based index
2703 use by the ca application. The responder can either handle
2704 requests generated internally, supplied in files (for example
2705 via a CGI script) or using an internal minimal server.
2708 *) Add configuration choices to get zlib compression for TLS.
2711 *) Changes to Kerberos SSL for RFC 2712 compliance:
2712 1. Implemented real KerberosWrapper, instead of just using
2713 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2714 2. Implemented optional authenticator field of KerberosWrapper.
2716 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2717 and authenticator structs; see crypto/krb5/.
2719 Generalized Kerberos calls to support multiple Kerberos libraries.
2720 [Vern Staats <staatsvr@asc.hpc.mil>,
2721 Jeffrey Altman <jaltman@columbia.edu>
2722 via Richard Levitte]
2724 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2725 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2726 values for each of the key sizes rather than having just
2727 parameters (and 'speed' generating keys each time).
2730 *) Speed up EVP routines.
2733 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2734 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2735 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2736 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2738 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2739 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2740 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2743 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2745 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2748 *) Added the OS2-EMX target.
2749 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2751 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2752 to support NCONF routines in extension code. New function CONF_set_nconf()
2753 to allow functions which take an NCONF to also handle the old LHASH
2754 structure: this means that the old CONF compatible routines can be
2755 retained (in particular wrt extensions) without having to duplicate the
2756 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2759 *) Enhance the general user interface with mechanisms for inner control
2760 and with possibilities to have yes/no kind of prompts.
2763 *) Change all calls to low level digest routines in the library and
2764 applications to use EVP. Add missing calls to HMAC_cleanup() and
2765 don't assume HMAC_CTX can be copied using memcpy().
2766 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2768 *) Add the possibility to control engines through control names but with
2769 arbitrary arguments instead of just a string.
2770 Change the key loaders to take a UI_METHOD instead of a callback
2771 function pointer. NOTE: this breaks binary compatibility with earlier
2772 versions of OpenSSL [engine].
2773 Adapt the nCipher code for these new conditions and add a card insertion
2777 *) Enhance the general user interface with mechanisms to better support
2778 dialog box interfaces, application-defined prompts, the possibility
2779 to use defaults (for example default passwords from somewhere else)
2780 and interrupts/cancellations.
2783 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2784 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2787 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2788 tidy up some unnecessarily weird code in 'sk_new()').
2789 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2791 *) Change the key loading routines for ENGINEs to use the same kind
2792 callback (pem_password_cb) as all other routines that need this
2796 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2797 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2798 than this minimum value is recommended.
2801 *) New random seeder for OpenVMS, using the system process statistics
2802 that are easily reachable.
2805 *) Windows apparently can't transparently handle global
2806 variables defined in DLLs. Initialisations such as:
2808 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2810 wont compile. This is used by the any applications that need to
2811 declare their own ASN1 modules. This was fixed by adding the option
2812 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2813 needed for static libraries under Win32.
2816 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2817 setting of purpose and trust fields. New X509_STORE trust and
2818 purpose functions and tidy up setting in other SSL functions.
2821 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2822 structure. These are inherited by X509_STORE_CTX when it is
2823 initialised. This allows various defaults to be set in the
2824 X509_STORE structure (such as flags for CRL checking and custom
2825 purpose or trust settings) for functions which only use X509_STORE_CTX
2826 internally such as S/MIME.
2828 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2829 trust settings if they are not set in X509_STORE. This allows X509_STORE
2830 purposes and trust (in S/MIME for example) to override any set by default.
2832 Add command line options for CRL checking to smime, s_client and s_server
2836 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2837 are set then the CRL is looked up in the X509_STORE structure and
2838 its validity and signature checked, then if the certificate is found
2839 in the CRL the verify fails with a revoked error.
2841 Various new CRL related callbacks added to X509_STORE_CTX structure.
2843 Command line options added to 'verify' application to support this.
2845 This needs some additional work, such as being able to handle multiple
2846 CRLs with different times, extension based lookup (rather than just
2847 by subject name) and ultimately more complete V2 CRL extension
2851 *) Add a general user interface API (crypto/ui/). This is designed
2852 to replace things like des_read_password and friends (backward
2853 compatibility functions using this new API are provided).
2854 The purpose is to remove prompting functions from the DES code
2855 section as well as provide for prompting through dialog boxes in
2856 a window system and the like.
2859 *) Add "ex_data" support to ENGINE so implementations can add state at a
2860 per-structure level rather than having to store it globally.
2863 *) Make it possible for ENGINE structures to be copied when retrieved by
2864 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2865 This causes the "original" ENGINE structure to act like a template,
2866 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2867 operational state can be localised to each ENGINE structure, despite the
2868 fact they all share the same "methods". New ENGINE structures returned in
2869 this case have no functional references and the return value is the single
2870 structural reference. This matches the single structural reference returned
2871 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2875 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2876 needs to match any other type at all we need to manually clear the
2880 *) Changes to the "openssl engine" utility to include;
2881 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2882 about an ENGINE's available control commands.
2883 - executing control commands from command line arguments using the
2884 '-pre' and '-post' switches. '-post' is only used if '-t' is
2885 specified and the ENGINE is successfully initialised. The syntax for
2886 the individual commands are colon-separated, for example;
2887 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2890 *) New dynamic control command support for ENGINEs. ENGINEs can now
2891 declare their own commands (numbers), names (strings), descriptions,
2892 and input types for run-time discovery by calling applications. A
2893 subset of these commands are implicitly classed as "executable"
2894 depending on their input type, and only these can be invoked through
2895 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2896 can be based on user input, config files, etc). The distinction is
2897 that "executable" commands cannot return anything other than a boolean
2898 result and can only support numeric or string input, whereas some
2899 discoverable commands may only be for direct use through
2900 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2901 pointers, or other custom uses. The "executable" commands are to
2902 support parameterisations of ENGINE behaviour that can be
2903 unambiguously defined by ENGINEs and used consistently across any
2904 OpenSSL-based application. Commands have been added to all the
2905 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2906 control over shared-library paths without source code alterations.
2909 *) Changed all ENGINE implementations to dynamically allocate their
2910 ENGINEs rather than declaring them statically. Apart from this being
2911 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2912 this also allows the implementations to compile without using the
2913 internal engine_int.h header.
2916 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2917 'const' value. Any code that should be able to modify a RAND_METHOD
2918 should already have non-const pointers to it (ie. they should only
2919 modify their own ones).
2922 *) Made a variety of little tweaks to the ENGINE code.
2923 - "atalla" and "ubsec" string definitions were moved from header files
2924 to C code. "nuron" string definitions were placed in variables
2925 rather than hard-coded - allowing parameterisation of these values
2926 later on via ctrl() commands.
2927 - Removed unused "#if 0"'d code.
2928 - Fixed engine list iteration code so it uses ENGINE_free() to release
2929 structural references.
2930 - Constified the RAND_METHOD element of ENGINE structures.
2931 - Constified various get/set functions as appropriate and added
2932 missing functions (including a catch-all ENGINE_cpy that duplicates
2933 all ENGINE values onto a new ENGINE except reference counts/state).
2934 - Removed NULL parameter checks in get/set functions. Setting a method
2935 or function to NULL is a way of cancelling out a previously set
2936 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2937 and doesn't justify the extra error symbols and code.
2938 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2939 flags from engine_int.h to engine.h.
2940 - Changed prototypes for ENGINE handler functions (init(), finish(),
2941 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2944 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2945 to the algorithm using long division. The binary algorithm can be
2946 used only if the modulus is odd. On 32-bit systems, it is faster
2947 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2948 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2949 up to 450 bits. In 64-bit environments, the binary algorithm
2950 appears to be advantageous for much longer moduli; here we use it
2951 for moduli up to 2048 bits.
2954 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2955 could not support the combine flag in choice fields.
2958 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2959 extensions from a certificate request to the certificate.
2962 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2963 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2964 file: this allows the display of the certificate about to be
2965 signed to be customised, to allow certain fields to be included
2966 or excluded and extension details. The old system didn't display
2967 multicharacter strings properly, omitted fields not in the policy
2968 and couldn't display additional details such as extensions.
2971 *) Function EC_POINTs_mul for multiple scalar multiplication
2972 of an arbitrary number of elliptic curve points
2973 \sum scalars[i]*points[i],
2974 optionally including the generator defined for the EC_GROUP:
2975 scalar*generator + \sum scalars[i]*points[i].
2977 EC_POINT_mul is a simple wrapper function for the typical case
2978 that the point list has just one item (besides the optional
2982 *) First EC_METHODs for curves over GF(p):
2984 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2985 operations and provides various method functions that can also
2986 operate with faster implementations of modular arithmetic.
2988 EC_GFp_mont_method() reuses most functions that are part of
2989 EC_GFp_simple_method, but uses Montgomery arithmetic.
2991 [Bodo Moeller; point addition and point doubling
2992 implementation directly derived from source code provided by
2993 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2995 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2996 crypto/ec/ec_lib.c):
2998 Curves are EC_GROUP objects (with an optional group generator)
2999 based on EC_METHODs that are built into the library.
3001 Points are EC_POINT objects based on EC_GROUP objects.
3003 Most of the framework would be able to handle curves over arbitrary
3004 finite fields, but as there are no obvious types for fields other
3005 than GF(p), some functions are limited to that for now.
3008 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3009 that the file contains a complete HTTP response.
3012 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3013 change the def and num file printf format specifier from "%-40sXXX"
3014 to "%-39s XXX". The latter will always guarantee a space after the
3015 field while the former will cause them to run together if the field
3016 is 40 of more characters long.
3019 *) Constify the cipher and digest 'method' functions and structures
3020 and modify related functions to take constant EVP_MD and EVP_CIPHER
3024 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3025 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3028 *) Modify EVP_Digest*() routines so they now return values. Although the
3029 internal software routines can never fail additional hardware versions
3033 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3035 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3036 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3039 ERR_R_NESTED_ASN1_ERROR
3041 ERR_R_MISSING_ASN1_EOS
3042 were 4 .. 9, conflicting with
3043 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3045 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3046 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3048 Add new error code 'ERR_R_INTERNAL_ERROR'.
3051 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3055 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3056 sets the subject name for a new request or supersedes the
3057 subject name in a given request. Formats that can be parsed are
3058 'CN=Some Name, OU=myOU, C=IT'
3060 'CN=Some Name/OU=myOU/C=IT'.
3062 Add options '-batch' and '-verbose' to 'openssl req'.
3063 [Massimiliano Pala <madwolf@hackmasters.net>]
3065 *) Introduce the possibility to access global variables through
3066 functions on platform were that's the best way to handle exporting
3067 global variables in shared libraries. To enable this functionality,
3068 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3069 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3070 is normally done by Configure or something similar).
3072 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3073 in the source file (foo.c) like this:
3075 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3076 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3078 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3079 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3081 OPENSSL_DECLARE_GLOBAL(int,foo);
3082 #define foo OPENSSL_GLOBAL_REF(foo)
3083 OPENSSL_DECLARE_GLOBAL(double,bar);
3084 #define bar OPENSSL_GLOBAL_REF(bar)
3086 The #defines are very important, and therefore so is including the
3087 header file everywhere where the defined globals are used.
3089 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3090 of ASN.1 items, but that structure is a bit different.
3092 The largest change is in util/mkdef.pl which has been enhanced with
3093 better and easier to understand logic to choose which symbols should
3094 go into the Windows .def files as well as a number of fixes and code
3095 cleanup (among others, algorithm keywords are now sorted
3096 lexicographically to avoid constant rewrites).
3099 *) In BN_div() keep a copy of the sign of 'num' before writing the
3100 result to 'rm' because if rm==num the value will be overwritten
3101 and produce the wrong result if 'num' is negative: this caused
3102 problems with BN_mod() and BN_nnmod().
3105 *) Function OCSP_request_verify(). This checks the signature on an
3106 OCSP request and verifies the signer certificate. The signer
3107 certificate is just checked for a generic purpose and OCSP request
3111 *) Add OCSP_check_validity() function to check the validity of OCSP
3112 responses. OCSP responses are prepared in real time and may only
3113 be a few seconds old. Simply checking that the current time lies
3114 between thisUpdate and nextUpdate max reject otherwise valid responses
3115 caused by either OCSP responder or client clock inaccuracy. Instead
3116 we allow thisUpdate and nextUpdate to fall within a certain period of
3117 the current time. The age of the response can also optionally be
3118 checked. Two new options -validity_period and -status_age added to
3122 *) If signature or public key algorithm is unrecognized print out its
3123 OID rather that just UNKNOWN.
3126 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3127 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3128 ID to be generated from the issuer certificate alone which can then be
3129 passed to OCSP_id_issuer_cmp().
3132 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3133 ASN1 modules to export functions returning ASN1_ITEM pointers
3134 instead of the ASN1_ITEM structures themselves. This adds several
3135 new macros which allow the underlying ASN1 function/structure to
3136 be accessed transparently. As a result code should not use ASN1_ITEM
3137 references directly (such as &X509_it) but instead use the relevant
3138 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3139 use of the new ASN1 code on platforms where exporting structures
3140 is problematical (for example in shared libraries) but exporting
3141 functions returning pointers to structures is not.
3144 *) Add support for overriding the generation of SSL/TLS session IDs.
3145 These callbacks can be registered either in an SSL_CTX or per SSL.
3146 The purpose of this is to allow applications to control, if they wish,
3147 the arbitrary values chosen for use as session IDs, particularly as it
3148 can be useful for session caching in multiple-server environments. A
3149 command-line switch for testing this (and any client code that wishes
3150 to use such a feature) has been added to "s_server".
3151 [Geoff Thorpe, Lutz Jaenicke]
3153 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3154 of the form '#if defined(...) || defined(...) || ...' and
3155 '#if !defined(...) && !defined(...) && ...'. This also avoids
3156 the growing number of special cases it was previously handling.
3159 *) Make all configuration macros available for application by making
3160 sure they are available in opensslconf.h, by giving them names starting
3161 with "OPENSSL_" to avoid conflicts with other packages and by making
3162 sure e_os2.h will cover all platform-specific cases together with
3164 Additionally, it is now possible to define configuration/platform-
3165 specific names (called "system identities"). In the C code, these
3166 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3167 macro with the name beginning with "OPENSSL_SYS_", which is determined
3168 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3172 *) New option -set_serial to 'req' and 'x509' this allows the serial
3173 number to use to be specified on the command line. Previously self
3174 signed certificates were hard coded with serial number 0 and the
3175 CA options of 'x509' had to use a serial number in a file which was
3179 *) New options to 'ca' utility to support V2 CRL entry extensions.
3180 Currently CRL reason, invalidity date and hold instruction are
3181 supported. Add new CRL extensions to V3 code and some new objects.
3184 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3185 disable standard block padding (aka PKCS#5 padding) in the EVP
3186 API, which was previously mandatory. This means that the data is
3187 not padded in any way and so the total length much be a multiple
3188 of the block size, otherwise an error occurs.
3191 *) Initial (incomplete) OCSP SSL support.
3194 *) New function OCSP_parse_url(). This splits up a URL into its host,
3195 port and path components: primarily to parse OCSP URLs. New -url
3196 option to ocsp utility.
3199 *) New nonce behavior. The return value of OCSP_check_nonce() now
3200 reflects the various checks performed. Applications can decide
3201 whether to tolerate certain situations such as an absent nonce
3202 in a response when one was present in a request: the ocsp application
3203 just prints out a warning. New function OCSP_add1_basic_nonce()
3204 this is to allow responders to include a nonce in a response even if
3205 the request is nonce-less.
3208 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3209 skipped when using openssl x509 multiple times on a single input file,
3210 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3213 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3214 set string type: to handle setting ASN1_TIME structures. Fix ca
3215 utility to correctly initialize revocation date of CRLs.
3218 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3219 the clients preferred ciphersuites and rather use its own preferences.
3220 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3221 Internet Explorer by ensuring unchanged hash method during stepup.
3222 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3225 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3226 to aes and add a new 'exist' option to print out symbols that don't
3230 *) Additional options to ocsp utility to allow flags to be set and
3231 additional certificates supplied.
3234 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3235 OCSP client a number of certificate to only verify the response
3239 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3240 handle the new API. Currently only ECB, CBC modes supported. Add new
3243 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3244 Encryption Standard (AES) Ciphersuites for Transport Layer
3245 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3246 not enabled by default and were not part of the "ALL" ciphersuite
3247 alias because they were not yet official; they could be
3248 explicitly requested by specifying the "AESdraft" ciphersuite
3249 group alias. In the final release of OpenSSL 0.9.7, the group
3250 alias is called "AES" and is part of "ALL".)
3251 [Ben Laurie, Steve Henson, Bodo Moeller]
3253 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3254 request to response.
3257 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3258 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3259 extract information from a certificate request. OCSP_response_create()
3260 creates a response and optionally adds a basic response structure.
3261 OCSP_basic_add1_status() adds a complete single response to a basic
3262 response and returns the OCSP_SINGLERESP structure just added (to allow
3263 extensions to be included for example). OCSP_basic_add1_cert() adds a
3264 certificate to a basic response and OCSP_basic_sign() signs a basic
3265 response with various flags. New helper functions ASN1_TIME_check()
3266 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3267 (converts ASN1_TIME to GeneralizedTime).
3270 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3271 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3272 structure from a certificate. X509_pubkey_digest() digests the public_key
3273 contents: this is used in various key identifiers.
3276 *) Make sk_sort() tolerate a NULL argument.
3277 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3279 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3280 passed by the function are trusted implicitly. If any of them signed the
3281 response then it is assumed to be valid and is not verified.
3284 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3285 to data. This was previously part of the PKCS7 ASN1 code. This
3286 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3287 [Steve Henson, reported by Kenneth R. Robinette
3288 <support@securenetterm.com>]
3290 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3291 routines: without these tracing memory leaks is very painful.
3292 Fix leaks in PKCS12 and PKCS7 routines.
3295 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3296 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3297 effectively meant GeneralizedTime would never be used. Now it
3298 is initialised to -1 but X509_time_adj() now has to check the value
3299 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3300 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3301 [Steve Henson, reported by Kenneth R. Robinette
3302 <support@securenetterm.com>]
3304 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3305 result in a zero length in the ASN1_INTEGER structure which was
3306 not consistent with the structure when d2i_ASN1_INTEGER() was used
3307 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3308 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3309 where it did not print out a minus for negative ASN1_INTEGER.
3312 *) Add summary printout to ocsp utility. The various functions which
3313 convert status values to strings have been renamed to:
3314 OCSP_response_status_str(), OCSP_cert_status_str() and
3315 OCSP_crl_reason_str() and are no longer static. New options
3316 to verify nonce values and to disable verification. OCSP response
3317 printout format cleaned up.
3320 *) Add additional OCSP certificate checks. These are those specified
3321 in RFC2560. This consists of two separate checks: the CA of the
3322 certificate being checked must either be the OCSP signer certificate
3323 or the issuer of the OCSP signer certificate. In the latter case the
3324 OCSP signer certificate must contain the OCSP signing extended key
3325 usage. This check is performed by attempting to match the OCSP
3326 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3327 in the OCSP_CERTID structures of the response.
3330 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3331 and related routines. This uses the standard OpenSSL certificate
3332 verify routines to perform initial checks (just CA validity) and
3333 to obtain the certificate chain. Then additional checks will be
3334 performed on the chain. Currently the root CA is checked to see
3335 if it is explicitly trusted for OCSP signing. This is used to set
3336 a root CA as a global signing root: that is any certificate that
3337 chains to that CA is an acceptable OCSP signing certificate.
3340 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3341 extensions from a separate configuration file.
3342 As when reading extensions from the main configuration file,
3343 the '-extensions ...' option may be used for specifying the
3345 [Massimiliano Pala <madwolf@comune.modena.it>]
3347 *) New OCSP utility. Allows OCSP requests to be generated or
3348 read. The request can be sent to a responder and the output
3349 parsed, outputed or printed in text form. Not complete yet:
3350 still needs to check the OCSP response validity.
3353 *) New subcommands for 'openssl ca':
3354 'openssl ca -status <serial>' prints the status of the cert with
3355 the given serial number (according to the index file).
3356 'openssl ca -updatedb' updates the expiry status of certificates
3358 [Massimiliano Pala <madwolf@comune.modena.it>]
3360 *) New '-newreq-nodes' command option to CA.pl. This is like
3361 '-newreq', but calls 'openssl req' with the '-nodes' option
3362 so that the resulting key is not encrypted.
3363 [Damien Miller <djm@mindrot.org>]
3365 *) New configuration for the GNU Hurd.
3366 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3368 *) Initial code to implement OCSP basic response verify. This
3369 is currently incomplete. Currently just finds the signer's
3370 certificate and verifies the signature on the response.
3373 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3374 value of OPENSSLDIR. This is available via the new '-d' option
3375 to 'openssl version', and is also included in 'openssl version -a'.
3378 *) Allowing defining memory allocation callbacks that will be given
3379 file name and line number information in additional arguments
3380 (a const char* and an int). The basic functionality remains, as
3381 well as the original possibility to just replace malloc(),
3382 realloc() and free() by functions that do not know about these
3383 additional arguments. To register and find out the current
3384 settings for extended allocation functions, the following
3385 functions are provided:
3387 CRYPTO_set_mem_ex_functions
3388 CRYPTO_set_locked_mem_ex_functions
3389 CRYPTO_get_mem_ex_functions
3390 CRYPTO_get_locked_mem_ex_functions
3392 These work the same way as CRYPTO_set_mem_functions and friends.
3393 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3394 extended allocation function is enabled.
3395 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3396 a conventional allocation function is enabled.
3397 [Richard Levitte, Bodo Moeller]
3399 *) Finish off removing the remaining LHASH function pointer casts.
3400 There should no longer be any prototype-casting required when using
3401 the LHASH abstraction, and any casts that remain are "bugs". See
3402 the callback types and macros at the head of lhash.h for details
3403 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3406 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3407 If /dev/[u]random devices are not available or do not return enough
3408 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3410 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3411 /etc/entropy will be queried once each in this sequence, quering stops
3412 when enough entropy was collected without querying more sockets.
3415 *) Change the Unix RAND_poll() variant to be able to poll several
3416 random devices, as specified by DEVRANDOM, until a sufficient amount
3417 of data has been collected. We spend at most 10 ms on each file
3418 (select timeout) and read in non-blocking mode. DEVRANDOM now
3419 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3420 (previously it was just the string "/dev/urandom"), so on typical
3421 platforms the 10 ms delay will never occur.
3422 Also separate out the Unix variant to its own file, rand_unix.c.
3423 For VMS, there's a currently-empty rand_vms.c.
3426 *) Move OCSP client related routines to ocsp_cl.c. These
3427 provide utility functions which an application needing
3428 to issue a request to an OCSP responder and analyse the
3429 response will typically need: as opposed to those which an
3430 OCSP responder itself would need which will be added later.
3432 OCSP_request_sign() signs an OCSP request with an API similar
3433 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3434 response. OCSP_response_get1_basic() extracts basic response
3435 from response. OCSP_resp_find_status(): finds and extracts status
3436 information from an OCSP_CERTID structure (which will be created
3437 when the request structure is built). These are built from lower
3438 level functions which work on OCSP_SINGLERESP structures but
3439 wont normally be used unless the application wishes to examine
3440 extensions in the OCSP response for example.
3442 Replace nonce routines with a pair of functions.
3443 OCSP_request_add1_nonce() adds a nonce value and optionally
3444 generates a random value. OCSP_check_nonce() checks the
3445 validity of the nonce in an OCSP response.
3448 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3449 This doesn't copy the supplied OCSP_CERTID and avoids the
3450 need to free up the newly created id. Change return type
3451 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3452 This can then be used to add extensions to the request.
3453 Deleted OCSP_request_new(), since most of its functionality
3454 is now in OCSP_REQUEST_new() (and the case insensitive name
3455 clash) apart from the ability to set the request name which
3456 will be added elsewhere.
3459 *) Update OCSP API. Remove obsolete extensions argument from
3460 various functions. Extensions are now handled using the new
3461 OCSP extension code. New simple OCSP HTTP function which
3462 can be used to send requests and parse the response.
3465 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3466 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3467 uses the special reorder version of SET OF to sort the attributes
3468 and reorder them to match the encoded order. This resolves a long
3469 standing problem: a verify on a PKCS7 structure just after signing
3470 it used to fail because the attribute order did not match the
3471 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3472 it uses the received order. This is necessary to tolerate some broken
3473 software that does not order SET OF. This is handled by encoding
3474 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3475 to produce the required SET OF.
3478 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3479 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3480 files to get correct declarations of the ASN.1 item variables.
3483 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3484 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3485 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3486 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3487 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3488 ASN1_ITEM and no wrapper functions.
3491 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3492 replace the old function pointer based I/O routines. Change most of
3493 the *_d2i_bio() and *_d2i_fp() functions to use these.
3496 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3497 lines, recognice more "algorithms" that can be deselected, and make
3498 it complain about algorithm deselection that isn't recognised.
3501 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3502 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3503 to use new functions. Add NO_ASN1_OLD which can be set to remove
3504 some old style ASN1 functions: this can be used to determine if old
3505 code will still work when these eventually go away.
3508 *) New extension functions for OCSP structures, these follow the
3509 same conventions as certificates and CRLs.
3512 *) New function X509V3_add1_i2d(). This automatically encodes and
3513 adds an extension. Its behaviour can be customised with various
3514 flags to append, replace or delete. Various wrappers added for
3515 certifcates and CRLs.
3518 *) Fix to avoid calling the underlying ASN1 print routine when
3519 an extension cannot be parsed. Correct a typo in the
3520 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3523 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3524 entries for variables.
3527 *) Add functionality to apps/openssl.c for detecting locking
3528 problems: As the program is single-threaded, all we have
3529 to do is register a locking callback using an array for
3530 storing which locks are currently held by the program.
3533 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3534 SSL_get_ex_data_X509_STORE_idx(), which is used in
3535 ssl_verify_cert_chain() and thus can be called at any time
3536 during TLS/SSL handshakes so that thread-safety is essential.
3537 Unfortunately, the ex_data design is not at all suited
3538 for multi-threaded use, so it probably should be abolished.
3541 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3542 [Broadcom, tweaked and integrated by Geoff Thorpe]
3544 *) Move common extension printing code to new function
3545 X509V3_print_extensions(). Reorganise OCSP print routines and
3546 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3549 *) New function X509_signature_print() to remove duplication in some
3553 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3554 set (this was treated exactly the same as SET OF previously). This
3555 is used to reorder the STACK representing the structure to match the
3556 encoding. This will be used to get round a problem where a PKCS7
3557 structure which was signed could not be verified because the STACK
3558 order did not reflect the encoded order.
3561 *) Reimplement the OCSP ASN1 module using the new code.
3564 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3565 for its ASN1 operations. The old style function pointers still exist
3566 for now but they will eventually go away.
3569 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3570 completely replaces the old ASN1 functionality with a table driven
3571 encoder and decoder which interprets an ASN1_ITEM structure describing
3572 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3573 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3574 has also been converted to the new form.
3577 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3578 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3579 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3580 for negative moduli.
3583 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3584 of not touching the result's sign bit.
3587 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3591 *) Changed the LHASH code to use prototypes for callbacks, and created
3592 macros to declare and implement thin (optionally static) functions
3593 that provide type-safety and avoid function pointer casting for the
3594 type-specific callbacks.
3597 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3599 [Veers Staats <staatsvr@asc.hpc.mil>,
3600 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3602 *) Reformat the FAQ so the different questions and answers can be divided
3603 in sections depending on the subject.
3606 *) Have the zlib compression code load ZLIB.DLL dynamically under
3610 *) New function BN_mod_sqrt for computing square roots modulo a prime
3611 (using the probabilistic Tonelli-Shanks algorithm unless
3612 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3613 be handled deterministically).
3614 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3616 *) Make BN_mod_inverse faster by explicitly handling small quotients
3617 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3618 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3621 *) New function BN_kronecker.
3624 *) Fix BN_gcd so that it works on negative inputs; the result is
3625 positive unless both parameters are zero.
3626 Previously something reasonably close to an infinite loop was
3627 possible because numbers could be growing instead of shrinking
3628 in the implementation of Euclid's algorithm.
3631 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3632 sign of the number in question.
3634 Fix BN_is_word(a,w) to work correctly for w == 0.
3636 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3637 because its test if the absolute value of 'a' equals 'w'.
3638 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3639 it exists mostly for use in the implementations of BN_is_zero(),
3640 BN_is_one(), and BN_is_word().
3643 *) New function BN_swap.
3646 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3647 the exponentiation functions are more likely to produce reasonable
3648 results on negative inputs.
3651 *) Change BN_mod_mul so that the result is always non-negative.
3652 Previously, it could be negative if one of the factors was negative;
3653 I don't think anyone really wanted that behaviour.
3656 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3657 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3658 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3659 and add new functions:
3668 BN_mod_lshift1_quick
3672 These functions always generate non-negative results.
3674 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3675 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3677 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3678 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3679 be reduced modulo m.
3680 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3683 The following entry accidentily appeared in the CHANGES file
3684 distributed with OpenSSL 0.9.7. The modifications described in
3685 it do *not* apply to OpenSSL 0.9.7.
3687 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3688 was actually never needed) and in BN_mul(). The removal in BN_mul()
3689 required a small change in bn_mul_part_recursive() and the addition
3690 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3691 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3692 bn_sub_words() and bn_add_words() except they take arrays with
3697 *) In 'openssl passwd', verify passwords read from the terminal
3698 unless the '-salt' option is used (which usually means that
3699 verification would just waste user's time since the resulting
3700 hash is going to be compared with some given password hash)
3701 or the new '-noverify' option is used.
3703 This is an incompatible change, but it does not affect
3704 non-interactive use of 'openssl passwd' (passwords on the command
3705 line, '-stdin' option, '-in ...' option) and thus should not
3709 *) Remove all references to RSAref, since there's no more need for it.
3712 *) Make DSO load along a path given through an environment variable
3713 (SHLIB_PATH) with shl_load().
3716 *) Constify the ENGINE code as a result of BIGNUM constification.
3717 Also constify the RSA code and most things related to it. In a
3718 few places, most notable in the depth of the ASN.1 code, ugly
3719 casts back to non-const were required (to be solved at a later
3723 *) Make it so the openssl application has all engines loaded by default.
3726 *) Constify the BIGNUM routines a little more.
3729 *) Add the following functions:
3731 ENGINE_load_cswift()
3733 ENGINE_load_atalla()
3735 ENGINE_load_builtin_engines()
3737 That way, an application can itself choose if external engines that
3738 are built-in in OpenSSL shall ever be used or not. The benefit is
3739 that applications won't have to be linked with libdl or other dso
3740 libraries unless it's really needed.
3742 Changed 'openssl engine' to load all engines on demand.
3743 Changed the engine header files to avoid the duplication of some
3744 declarations (they differed!).
3747 *) 'openssl engine' can now list capabilities.
3750 *) Better error reporting in 'openssl engine'.
3753 *) Never call load_dh_param(NULL) in s_server.
3756 *) Add engine application. It can currently list engines by name and
3757 identity, and test if they are actually available.
3760 *) Improve RPM specification file by forcing symbolic linking and making
3761 sure the installed documentation is also owned by root.root.
3762 [Damien Miller <djm@mindrot.org>]
3764 *) Give the OpenSSL applications more possibilities to make use of
3765 keys (public as well as private) handled by engines.
3768 *) Add OCSP code that comes from CertCo.
3771 *) Add VMS support for the Rijndael code.
3774 *) Added untested support for Nuron crypto accelerator.
3777 *) Add support for external cryptographic devices. This code was
3778 previously distributed separately as the "engine" branch.
3779 [Geoff Thorpe, Richard Levitte]
3781 *) Rework the filename-translation in the DSO code. It is now possible to
3782 have far greater control over how a "name" is turned into a filename
3783 depending on the operating environment and any oddities about the
3784 different shared library filenames on each system.
3787 *) Support threads on FreeBSD-elf in Configure.
3790 *) Fix for SHA1 assembly problem with MASM: it produces
3791 warnings about corrupt line number information when assembling
3792 with debugging information. This is caused by the overlapping
3794 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3797 NCONF_get_number() has no error checking at all. As a replacement,
3798 NCONF_get_number_e() is defined (_e for "error checking") and is
3799 promoted strongly. The old NCONF_get_number is kept around for
3800 binary backward compatibility.
3801 Make it possible for methods to load from something other than a BIO,
3802 by providing a function pointer that is given a name instead of a BIO.
3803 For example, this could be used to load configuration data from an
3807 *) Fix for non blocking accept BIOs. Added new I/O special reason
3808 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3809 with non blocking I/O was not possible because no retry code was
3810 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3814 *) Added the beginnings of Rijndael support.
3817 *) Fix for bug in DirectoryString mask setting. Add support for
3818 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3819 to allow certificate printing to more controllable, additional
3820 'certopt' option to 'x509' to allow new printing options to be
3824 *) Clean old EAY MD5 hack from e_os.h.
3827 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3829 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3830 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3831 [Joe Orton, Steve Henson]
3833 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3835 *) Fix additional bug revealed by the NISCC test suite:
3837 Stop bug triggering large recursion when presented with
3838 certain ASN.1 tags (CVE-2003-0851)
3841 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3843 *) Fix various bugs revealed by running the NISCC test suite:
3845 Stop out of bounds reads in the ASN1 code when presented with
3846 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3848 If verify callback ignores invalid public key errors don't try to check
3849 certificate signature with the NULL public key.
3853 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3854 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3858 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3859 extra data after the compression methods not only for TLS 1.0
3860 but also for SSL 3.0 (as required by the specification).
3861 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3863 *) Change X509_certificate_type() to mark the key as exported/exportable
3864 when it's 512 *bits* long, not 512 bytes.
3867 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3869 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3870 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3871 a protocol version number mismatch like a decryption error
3872 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3875 *) Turn on RSA blinding by default in the default implementation
3876 to avoid a timing attack. Applications that don't want it can call
3877 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3878 They would be ill-advised to do so in most cases.
3879 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3881 *) Change RSA blinding code so that it works when the PRNG is not
3882 seeded (in this case, the secret RSA exponent is abused as
3883 an unpredictable seed -- if it is not unpredictable, there
3884 is no point in blinding anyway). Make RSA blinding thread-safe
3885 by remembering the creator's thread ID in rsa->blinding and
3886 having all other threads use local one-time blinding factors
3887 (this requires more computation than sharing rsa->blinding, but
3888 avoids excessive locking; and if an RSA object is not shared
3889 between threads, blinding will still be very fast).
3892 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3894 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3895 via timing by performing a MAC computation even if incorrrect
3896 block cipher padding has been found. This is a countermeasure
3897 against active attacks where the attacker has to distinguish
3898 between bad padding and a MAC verification error. (CVE-2003-0078)
3900 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3901 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3902 Martin Vuagnoux (EPFL, Ilion)]
3904 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3906 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3907 memory from it's contents. This is done with a counter that will
3908 place alternating values in each byte. This can be used to solve
3909 two issues: 1) the removal of calls to memset() by highly optimizing
3910 compilers, and 2) cleansing with other values than 0, since those can
3911 be read through on certain media, for example a swap space on disk.
3914 *) Bugfix: client side session caching did not work with external caching,
3915 because the session->cipher setting was not restored when reloading
3916 from the external cache. This problem was masked, when
3917 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3918 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3921 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3922 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3923 [Zeev Lieber <zeev-l@yahoo.com>]
3925 *) Undo an undocumented change introduced in 0.9.6e which caused
3926 repeated calls to OpenSSL_add_all_ciphers() and
3927 OpenSSL_add_all_digests() to be ignored, even after calling
3931 *) Change the default configuration reader to deal with last line not
3932 being properly terminated.
3935 *) Change X509_NAME_cmp() so it applies the special rules on handling
3936 DN values that are of type PrintableString, as well as RDNs of type
3937 emailAddress where the value has the type ia5String.
3938 [stefank@valicert.com via Richard Levitte]
3940 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3941 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3942 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3943 the bitwise-OR of the two for use by the majority of applications
3944 wanting this behaviour, and update the docs. The documented
3945 behaviour and actual behaviour were inconsistent and had been
3946 changing anyway, so this is more a bug-fix than a behavioural
3948 [Geoff Thorpe, diagnosed by Nadav Har'El]
3950 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3951 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3954 *) Fix initialization code race conditions in
3955 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3956 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3957 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3958 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3959 ssl2_get_cipher_by_char(),
3960 ssl3_get_cipher_by_char().
3961 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3963 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3964 the cached sessions are flushed, as the remove_cb() might use ex_data
3965 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3966 (see [openssl.org #212]).
3967 [Geoff Thorpe, Lutz Jaenicke]
3969 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3970 length, instead of the encoding length to d2i_ASN1_OBJECT.
3973 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3975 *) [In 0.9.6g-engine release:]
3976 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3977 [Lynn Gazis <lgazis@rainbow.com>]
3979 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3981 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3982 and get fix the header length calculation.
3983 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3984 Alon Kantor <alonk@checkpoint.com> (and others),
3987 *) Use proper error handling instead of 'assertions' in buffer
3988 overflow checks added in 0.9.6e. This prevents DoS (the
3989 assertions could call abort()).
3990 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3992 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3994 *) Add various sanity checks to asn1_get_length() to reject
3995 the ASN1 length bytes if they exceed sizeof(long), will appear
3996 negative or the content length exceeds the length of the
3998 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4000 *) Fix cipher selection routines: ciphers without encryption had no flags
4001 for the cipher strength set and where therefore not handled correctly
4002 by the selection routines (PR #130).
4005 *) Fix EVP_dsa_sha macro.
4009 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4010 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4011 that was added in OpenSSL 0.9.6d.
4013 As the countermeasure turned out to be incompatible with some
4014 broken SSL implementations, the new option is part of SSL_OP_ALL.
4015 SSL_OP_ALL is usually employed when compatibility with weird SSL
4016 implementations is desired (e.g. '-bugs' option to 's_client' and
4017 's_server'), so the new option is automatically set in many
4021 *) Changes in security patch:
4023 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4024 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4025 Air Force Materiel Command, USAF, under agreement number
4028 *) Add various sanity checks to asn1_get_length() to reject
4029 the ASN1 length bytes if they exceed sizeof(long), will appear
4030 negative or the content length exceeds the length of the
4031 supplied buffer. (CVE-2002-0659)
4032 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4034 *) Assertions for various potential buffer overflows, not known to
4036 [Ben Laurie (CHATS)]
4038 *) Various temporary buffers to hold ASCII versions of integers were
4039 too small for 64 bit platforms. (CVE-2002-0655)
4040 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4042 *) Remote buffer overflow in SSL3 protocol - an attacker could
4043 supply an oversized session ID to a client. (CVE-2002-0656)
4044 [Ben Laurie (CHATS)]
4046 *) Remote buffer overflow in SSL2 protocol - an attacker could
4047 supply an oversized client master key. (CVE-2002-0656)
4048 [Ben Laurie (CHATS)]
4050 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4052 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4053 encoded as NULL) with id-dsa-with-sha1.
4054 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4056 *) Check various X509_...() return values in apps/req.c.
4057 [Nils Larsch <nla@trustcenter.de>]
4059 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4060 an end-of-file condition would erronously be flagged, when the CRLF
4061 was just at the end of a processed block. The bug was discovered when
4062 processing data through a buffering memory BIO handing the data to a
4063 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4064 <ptsekov@syntrex.com> and Nedelcho Stanev.
4067 *) Implement a countermeasure against a vulnerability recently found
4068 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4069 before application data chunks to avoid the use of known IVs
4070 with data potentially chosen by the attacker.
4073 *) Fix length checks in ssl3_get_client_hello().
4076 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4077 to prevent ssl3_read_internal() from incorrectly assuming that
4078 ssl3_read_bytes() found application data while handshake
4079 processing was enabled when in fact s->s3->in_read_app_data was
4080 merely automatically cleared during the initial handshake.
4081 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4083 *) Fix object definitions for Private and Enterprise: they were not
4084 recognized in their shortname (=lowercase) representation. Extend
4085 obj_dat.pl to issue an error when using undefined keywords instead
4086 of silently ignoring the problem (Svenning Sorensen
4087 <sss@sss.dnsalias.net>).
4090 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4091 generators, i.e. generators other than 2 and 5. (Previously, the
4092 code did not properly initialise the 'add' and 'rem' values to
4093 BN_generate_prime().)
4095 In the new general case, we do not insist that 'generator' is
4096 actually a primitive root: This requirement is rather pointless;
4097 a generator of the order-q subgroup is just as good, if not
4101 *) Map new X509 verification errors to alerts. Discovered and submitted by
4102 Tom Wu <tom@arcot.com>.
4105 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4106 returning non-zero before the data has been completely received
4107 when using non-blocking I/O.
4108 [Bodo Moeller; problem pointed out by John Hughes]
4110 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4111 [Ben Laurie, Lutz Jaenicke]
4113 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4114 Yoram Zahavi <YoramZ@gilian.com>).
4117 *) Add information about CygWin 1.3 and on, and preserve proper
4118 configuration for the versions before that.
4119 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4121 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4122 check whether we deal with a copy of a session and do not delete from
4123 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4124 <izhar@checkpoint.com>.
4127 *) Do not store session data into the internal session cache, if it
4128 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4129 flag is set). Proposed by Aslam <aslam@funk.com>.
4132 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4136 *) [In 0.9.6d-engine release:]
4137 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4138 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4140 *) Add the configuration target linux-s390x.
4141 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4143 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4144 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4145 variable as an indication that a ClientHello message has been
4146 received. As the flag value will be lost between multiple
4147 invocations of ssl3_accept when using non-blocking I/O, the
4148 function may not be aware that a handshake has actually taken
4149 place, thus preventing a new session from being added to the
4152 To avoid this problem, we now set s->new_session to 2 instead of
4153 using a local variable.
4154 [Lutz Jaenicke, Bodo Moeller]
4156 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4157 if the SSL_R_LENGTH_MISMATCH error is detected.
4158 [Geoff Thorpe, Bodo Moeller]
4160 *) New 'shared_ldflag' column in Configure platform table.
4163 *) Fix EVP_CIPHER_mode macro.
4164 ["Dan S. Camper" <dan@bti.net>]
4166 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4167 type, we must throw them away by setting rr->length to 0.
4168 [D P Chang <dpc@qualys.com>]
4170 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4172 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4173 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4174 worked incorrectly for those cases where range = 10..._2 and
4175 3*range is two bits longer than range.)
4178 *) Only add signing time to PKCS7 structures if it is not already
4182 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4183 OBJ_ld_ce should be OBJ_id_ce.
4184 Also some ip-pda OIDs in crypto/objects/objects.txt were
4185 incorrect (cf. RFC 3039).
4186 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4188 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4189 returns early because it has nothing to do.
4190 [Andy Schneider <andy.schneider@bjss.co.uk>]
4192 *) [In 0.9.6c-engine release:]
4193 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4194 [Andy Schneider <andy.schneider@bjss.co.uk>]
4196 *) [In 0.9.6c-engine release:]
4197 Add support for Cryptographic Appliance's keyserver technology.
4198 (Use engine 'keyclient')
4199 [Cryptographic Appliances and Geoff Thorpe]
4201 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4202 is called via tools/c89.sh because arguments have to be
4203 rearranged (all '-L' options must appear before the first object
4205 [Richard Shapiro <rshapiro@abinitio.com>]
4207 *) [In 0.9.6c-engine release:]
4208 Add support for Broadcom crypto accelerator cards, backported
4210 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4212 *) [In 0.9.6c-engine release:]
4213 Add support for SureWare crypto accelerator cards from
4214 Baltimore Technologies. (Use engine 'sureware')
4215 [Baltimore Technologies and Mark Cox]
4217 *) [In 0.9.6c-engine release:]
4218 Add support for crypto accelerator cards from Accelerated
4219 Encryption Processing, www.aep.ie. (Use engine 'aep')
4220 [AEP Inc. and Mark Cox]
4222 *) Add a configuration entry for gcc on UnixWare.
4223 [Gary Benson <gbenson@redhat.com>]
4225 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4226 messages are stored in a single piece (fixed-length part and
4227 variable-length part combined) and fix various bugs found on the way.
4230 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4231 instead. BIO_gethostbyname() does not know what timeouts are
4232 appropriate, so entries would stay in cache even when they have
4234 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4236 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4237 faced with a pathologically small ClientHello fragment that does
4238 not contain client_version: Instead of aborting with an error,
4239 simply choose the highest available protocol version (i.e.,
4240 TLS 1.0 unless it is disabled). In practice, ClientHello
4241 messages are never sent like this, but this change gives us
4242 strictly correct behaviour at least for TLS.
4245 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4246 never resets s->method to s->ctx->method when called from within
4247 one of the SSL handshake functions.
4248 [Bodo Moeller; problem pointed out by Niko Baric]
4250 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4251 (sent using the client's version number) if client_version is
4252 smaller than the protocol version in use. Also change
4253 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4254 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4255 the client will at least see that alert.
4258 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4262 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4263 client receives HelloRequest while in a handshake.
4264 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4266 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4267 should end in 'break', not 'goto end' which circuments various
4268 cleanups done in state SSL_ST_OK. But session related stuff
4269 must be disabled for SSL_ST_OK in the case that we just sent a
4272 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4273 before just sending a HelloRequest.
4274 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4276 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4277 reveal whether illegal block cipher padding was found or a MAC
4278 verification error occured. (Neither SSLerr() codes nor alerts
4279 are directly visible to potential attackers, but the information
4280 may leak via logfiles.)
4282 Similar changes are not required for the SSL 2.0 implementation
4283 because the number of padding bytes is sent in clear for SSL 2.0,
4284 and the extra bytes are just ignored. However ssl/s2_pkt.c
4285 failed to verify that the purported number of padding bytes is in
4289 *) Add OpenUNIX-8 support including shared libraries
4290 (Boyd Lynn Gerber <gerberb@zenez.com>).
4293 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4294 'wristwatch attack' using huge encoding parameters (cf.
4295 James H. Manger's CRYPTO 2001 paper). Note that the
4296 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4297 encoding parameters and hence was not vulnerable.
4300 *) BN_sqr() bug fix.
4301 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4303 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4304 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4305 followed by modular reduction.
4306 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4308 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4309 equivalent based on BN_pseudo_rand() instead of BN_rand().
4312 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4313 This function was broken, as the check for a new client hello message
4314 to handle SGC did not allow these large messages.
4315 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4318 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4321 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4322 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4325 *) Rework the configuration and shared library support for Tru64 Unix.
4326 The configuration part makes use of modern compiler features and
4327 still retains old compiler behavior for those that run older versions
4328 of the OS. The shared library support part includes a variant that
4329 uses the RPATH feature, and is available through the special
4330 configuration target "alpha-cc-rpath", which will never be selected
4332 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4334 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4335 with the same message size as in ssl3_get_certificate_request().
4336 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4337 messages might inadvertently be reject as too long.
4338 [Petr Lampa <lampa@fee.vutbr.cz>]
4340 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4343 *) Modified SSL library such that the verify_callback that has been set
4344 specificly for an SSL object with SSL_set_verify() is actually being
4345 used. Before the change, a verify_callback set with this function was
4346 ignored and the verify_callback() set in the SSL_CTX at the time of
4347 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4348 to allow the necessary settings.
4351 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4352 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4353 done automatically (in contradiction to the requirements of the C
4354 standard). This made problems when used from OpenSSH.
4357 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4358 dh->length and always used
4360 BN_rand_range(priv_key, dh->p).
4362 BN_rand_range() is not necessary for Diffie-Hellman, and this
4363 specific range makes Diffie-Hellman unnecessarily inefficient if
4364 dh->length (recommended exponent length) is much smaller than the
4365 length of dh->p. We could use BN_rand_range() if the order of
4366 the subgroup was stored in the DH structure, but we only have
4371 BN_rand(priv_key, l, ...)
4373 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4379 RSA_eay_public_encrypt
4380 RSA_eay_private_decrypt
4381 RSA_eay_private_encrypt (signing)
4382 RSA_eay_public_decrypt (signature verification)
4384 (default implementations for RSA_public_encrypt,
4385 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4386 always reject numbers >= n.
4389 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4390 to synchronize access to 'locking_thread'. This is necessary on
4391 systems where access to 'locking_thread' (an 'unsigned long'
4392 variable) is not atomic.
4395 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4396 *before* setting the 'crypto_lock_rand' flag. The previous code had
4397 a race condition if 0 is a valid thread ID.
4398 [Travis Vitek <vitek@roguewave.com>]
4400 *) Add support for shared libraries under Irix.
4401 [Albert Chin-A-Young <china@thewrittenword.com>]
4403 *) Add configuration option to build on Linux on both big-endian and
4405 [Ralf Baechle <ralf@uni-koblenz.de>]
4407 *) Add the possibility to create shared libraries on HP-UX.
4410 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4412 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4413 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4414 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4415 PRNG state recovery was possible based on the output of
4416 one PRNG request appropriately sized to gain knowledge on
4417 'md' followed by enough consecutive 1-byte PRNG requests
4418 to traverse all of 'state'.
4420 1. When updating 'md_local' (the current thread's copy of 'md')
4421 during PRNG output generation, hash all of the previous
4422 'md_local' value, not just the half used for PRNG output.
4424 2. Make the number of bytes from 'state' included into the hash
4425 independent from the number of PRNG bytes requested.
4427 The first measure alone would be sufficient to avoid
4428 Markku-Juhani's attack. (Actually it had never occurred
4429 to me that the half of 'md_local' used for chaining was the
4430 half from which PRNG output bytes were taken -- I had always
4431 assumed that the secret half would be used.) The second
4432 measure makes sure that additional data from 'state' is never
4433 mixed into 'md_local' in small portions; this heuristically
4434 further strengthens the PRNG.
4437 *) Fix crypto/bn/asm/mips3.s.
4440 *) When only the key is given to "enc", the IV is undefined. Print out
4441 an error message in this case.
4444 *) Handle special case when X509_NAME is empty in X509 printing routines.
4447 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4448 positive and less than q.
4451 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4452 used: it isn't thread safe and the add_lock_callback should handle
4454 [Paul Rose <Paul.Rose@bridge.com>]
4456 *) Verify that incoming data obeys the block size in
4457 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4461 [Ulf Möller, Bodo Möller]
4463 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4464 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4465 when fixing the server behaviour for backwards-compatible 'client
4466 hello' messages. (Note that the attack is impractical against
4467 SSL 3.0 and TLS 1.0 anyway because length and version checking
4468 means that the probability of guessing a valid ciphertext is
4469 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4472 Before 0.9.5, the countermeasure (hide the error by generating a
4473 random 'decryption result') did not work properly because
4474 ERR_clear_error() was missing, meaning that SSL_get_error() would
4475 detect the supposedly ignored error.
4477 Both problems are now fixed.
4480 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4481 (previously it was 1024).
4484 *) Fix for compatibility mode trust settings: ignore trust settings
4485 unless some valid trust or reject settings are present.
4488 *) Fix for blowfish EVP: its a variable length cipher.
4491 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4492 parameters in DSA public key structures and return an error in the
4493 DSA routines if parameters are absent.
4496 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4497 in the current directory if neither $RANDFILE nor $HOME was set.
4498 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4499 caused some confusion to Windows users who haven't defined $HOME.
4500 Thus RAND_file_name() is changed again: e_os.h can define a
4501 DEFAULT_HOME, which will be used if $HOME is not set.
4502 For Windows, we use "C:"; on other platforms, we still require
4503 environment variables.
4505 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4506 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4507 having multiple threads call RAND_poll() concurrently.
4510 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4511 combination of a flag and a thread ID variable.
4512 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4513 flag), *other* threads can enter ssleay_add_bytes without obeying
4514 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4515 that they do not hold after the first thread unsets add_do_not_lock).
4518 *) Change bctest again: '-x' expressions are not available in all
4522 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4524 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4525 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4527 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4528 the default extension for executables, if any. Also, make the perl
4529 scripts that use symlink() to test if it really exists and use "cp"
4530 if it doesn't. All this made OpenSSL compilable and installable in
4534 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4535 If SEQUENCE is length is indefinite just set c->slen to the total
4536 amount of data available.
4537 [Steve Henson, reported by shige@FreeBSD.org]
4538 [This change does not apply to 0.9.7.]
4540 *) Change bctest to avoid here-documents inside command substitution
4541 (workaround for FreeBSD /bin/sh bug).
4542 For compatibility with Ultrix, avoid shell functions (introduced
4543 in the bctest version that searches along $PATH).
4546 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4547 with des_encrypt() defined on some operating systems, like Solaris
4551 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4552 On the Importance of Eliminating Errors in Cryptographic
4553 Computations, J. Cryptology 14 (2001) 2, 101-119,
4554 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4557 *) MIPS assembler BIGNUM division bug fix.
4560 *) Disabled incorrect Alpha assembler code.
4563 *) Fix PKCS#7 decode routines so they correctly update the length
4564 after reading an EOC for the EXPLICIT tag.
4566 [This change does not apply to 0.9.7.]
4568 *) Fix bug in PKCS#12 key generation routines. This was triggered
4569 if a 3DES key was generated with a 0 initial byte. Include
4570 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4571 (but broken) behaviour.
4574 *) Enhance bctest to search for a working bc along $PATH and print
4576 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4578 *) Fix memory leaks in err.c: free err_data string if necessary;
4579 don't write to the wrong index in ERR_set_error_data.
4582 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4586 *) Replace rdtsc with _emit statements for VC++ version 5.
4587 [Jeremy Cooper <jeremy@baymoo.org>]
4589 *) Make it possible to reuse SSLv2 sessions.
4592 *) In copy_email() check for >= 0 as a return value for
4593 X509_NAME_get_index_by_NID() since 0 is a valid index.
4594 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4596 *) Avoid coredump with unsupported or invalid public keys by checking if
4597 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4598 PKCS7_verify() fails with non detached data.
4601 *) Don't use getenv in library functions when run as setuid/setgid.
4602 New function OPENSSL_issetugid().
4605 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4606 due to incorrect handling of multi-threading:
4608 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4610 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4612 3. Count how many times MemCheck_off() has been called so that
4613 nested use can be treated correctly. This also avoids
4614 inband-signalling in the previous code (which relied on the
4615 assumption that thread ID 0 is impossible).
4618 *) Add "-rand" option also to s_client and s_server.
4621 *) Fix CPU detection on Irix 6.x.
4622 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4623 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4625 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4628 [This change does not apply to 0.9.7.]
4630 *) Use the cached encoding of an X509_NAME structure rather than
4631 copying it. This is apparently the reason for the libsafe "errors"
4632 but the code is actually correct.
4635 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4636 Bleichenbacher's DSA attack.
4637 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4638 to be set and top=0 forces the highest bit to be set; top=-1 is new
4639 and leaves the highest bit random.
4640 [Ulf Moeller, Bodo Moeller]
4642 *) In the NCONF_...-based implementations for CONF_... queries
4643 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4644 a temporary CONF structure with the data component set to NULL
4645 (which gives segmentation faults in lh_retrieve).
4646 Instead, use NULL for the CONF pointer in CONF_get_string and
4647 CONF_get_number (which may use environment variables) and directly
4648 return NULL from CONF_get_section.
4651 *) Fix potential buffer overrun for EBCDIC.
4654 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4655 keyUsage if basicConstraints absent for a CA.
4658 *) Make SMIME_write_PKCS7() write mail header values with a format that
4659 is more generally accepted (no spaces before the semicolon), since
4660 some programs can't parse those values properly otherwise. Also make
4661 sure BIO's that break lines after each write do not create invalid
4665 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4666 macros previously used would not encode an empty SEQUENCE OF
4667 and break the signature.
4669 [This change does not apply to 0.9.7.]
4671 *) Zero the premaster secret after deriving the master secret in
4675 *) Add some EVP_add_digest_alias registrations (as found in
4676 OpenSSL_add_all_digests()) to SSL_library_init()
4677 aka OpenSSL_add_ssl_algorithms(). This provides improved
4678 compatibility with peers using X.509 certificates
4679 with unconventional AlgorithmIdentifier OIDs.
4682 *) Fix for Irix with NO_ASM.
4683 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4685 *) ./config script fixes.
4686 [Ulf Moeller, Richard Levitte]
4688 *) Fix 'openssl passwd -1'.
4691 *) Change PKCS12_key_gen_asc() so it can cope with non null
4692 terminated strings whose length is passed in the passlen
4693 parameter, for example from PEM callbacks. This was done
4694 by adding an extra length parameter to asc2uni().
4695 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4697 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4698 call failed, free the DSA structure.
4701 *) Fix to uni2asc() to cope with zero length Unicode strings.
4702 These are present in some PKCS#12 files.
4705 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4706 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4707 when writing a 32767 byte record.
4708 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4710 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4711 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4713 (RSA objects have a reference count access to which is protected
4714 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4715 so they are meant to be shared between threads.)
4716 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4717 "Reddie, Steven" <Steven.Reddie@ca.com>]
4719 *) Fix a deadlock in CRYPTO_mem_leaks().
4722 *) Use better test patterns in bntest.
4725 *) rand_win.c fix for Borland C.
4728 *) BN_rshift bugfix for n == 0.
4731 *) Add a 'bctest' script that checks for some known 'bc' bugs
4732 so that 'make test' does not abort just because 'bc' is broken.
4735 *) Store verify_result within SSL_SESSION also for client side to
4736 avoid potential security hole. (Re-used sessions on the client side
4737 always resulted in verify_result==X509_V_OK, not using the original
4738 result of the server certificate verification.)
4741 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4742 SSL3_RT_APPLICATION_DATA, return 0.
4743 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4747 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4748 releases, have been re-implemented by renaming the previous
4749 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4750 and ssl3_read_internal, respectively, and adding 'peek' parameters
4751 to them. The new ssl[23]_{read,peek} functions are calls to
4752 ssl[23]_read_internal with the 'peek' flag set appropriately.
4753 A 'peek' parameter has also been added to ssl3_read_bytes, which
4754 does the actual work for ssl3_read_internal.
4757 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4758 the method-specific "init()" handler. Also clean up ex_data after
4759 calling the method-specific "finish()" handler. Previously, this was
4760 happening the other way round.
4763 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4764 The previous value, 12, was not always sufficient for BN_mod_exp().
4767 *) Make sure that shared libraries get the internal name engine with
4768 the full version number and not just 0. This should mark the
4769 shared libraries as not backward compatible. Of course, this should
4770 be changed again when we can guarantee backward binary compatibility.
4773 *) Fix typo in get_cert_by_subject() in by_dir.c
4774 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4776 *) Rework the system to generate shared libraries:
4778 - Make note of the expected extension for the shared libraries and
4779 if there is a need for symbolic links from for example libcrypto.so.0
4780 to libcrypto.so.0.9.7. There is extended info in Configure for
4783 - Make as few rebuilds of the shared libraries as possible.
4785 - Still avoid linking the OpenSSL programs with the shared libraries.
4787 - When installing, install the shared libraries separately from the
4791 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4793 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4794 and not in SSL_clear because the latter is also used by the
4795 accept/connect functions; previously, the settings made by
4796 SSL_set_read_ahead would be lost during the handshake.
4797 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4799 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4800 Previously, it would create entries for disableed algorithms no
4804 *) Added several new manual pages for SSL_* function.
4807 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4809 *) In ssl23_get_client_hello, generate an error message when faced
4810 with an initial SSL 3.0/TLS record that is too small to contain the
4811 first two bytes of the ClientHello message, i.e. client_version.
4812 (Note that this is a pathologic case that probably has never happened
4813 in real life.) The previous approach was to use the version number
4814 from the record header as a substitute; but our protocol choice
4815 should not depend on that one because it is not authenticated
4816 by the Finished messages.
4819 *) More robust randomness gathering functions for Windows.
4820 [Jeffrey Altman <jaltman@columbia.edu>]
4822 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4823 not set then we don't setup the error code for issuer check errors
4824 to avoid possibly overwriting other errors which the callback does
4825 handle. If an application does set the flag then we assume it knows
4826 what it is doing and can handle the new informational codes
4830 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4831 a general "ANY" type, as such it should be able to decode anything
4832 including tagged types. However it didn't check the class so it would
4833 wrongly interpret tagged types in the same way as their universal
4834 counterpart and unknown types were just rejected. Changed so that the
4835 tagged and unknown types are handled in the same way as a SEQUENCE:
4836 that is the encoding is stored intact. There is also a new type
4837 "V_ASN1_OTHER" which is used when the class is not universal, in this
4838 case we have no idea what the actual type is so we just lump them all
4842 *) On VMS, stdout may very well lead to a file that is written to
4843 in a record-oriented fashion. That means that every write() will
4844 write a separate record, which will be read separately by the
4845 programs trying to read from it. This can be very confusing.
4847 The solution is to put a BIO filter in the way that will buffer
4848 text until a linefeed is reached, and then write everything a
4849 line at a time, so every record written will be an actual line,
4850 not chunks of lines and not (usually doesn't happen, but I've
4851 seen it once) several lines in one record. BIO_f_linebuffer() is
4854 Currently, it's a VMS-only method, because that's where it has
4855 been tested well enough.
4858 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4859 it can return incorrect results.
4860 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4861 but it was in 0.9.6-beta[12].)
4864 *) Disable the check for content being present when verifying detached
4865 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4866 include zero length content when signing messages.
4869 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4870 BIO_ctrl (for BIO pairs).
4873 *) Add DSO method for VMS.
4876 *) Bug fix: Montgomery multiplication could produce results with the
4880 *) Add RPM specification openssl.spec and modify it to build three
4881 packages. The default package contains applications, application
4882 documentation and run-time libraries. The devel package contains
4883 include files, static libraries and function documentation. The
4884 doc package contains the contents of the doc directory. The original
4885 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4888 *) Add a large number of documentation files for many SSL routines.
4889 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4891 *) Add a configuration entry for Sony News 4.
4892 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4894 *) Don't set the two most significant bits to one when generating a
4895 random number < q in the DSA library.
4898 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4899 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4900 the underlying transport is blocking) if a handshake took place.
4901 (The default behaviour is needed by applications such as s_client
4902 and s_server that use select() to determine when to use SSL_read;
4903 but for applications that know in advance when to expect data, it
4904 just makes things more complicated.)
4907 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4911 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4912 work better on such systems.
4913 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4915 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4916 Update PKCS12_parse() so it copies the friendlyName and the
4917 keyid to the certificates aux info.
4920 *) Fix bug in PKCS7_verify() which caused an infinite loop
4921 if there was more than one signature.
4922 [Sven Uszpelkat <su@celocom.de>]
4924 *) Major change in util/mkdef.pl to include extra information
4925 about each symbol, as well as presentig variables as well
4926 as functions. This change means that there's n more need
4927 to rebuild the .num files when some algorithms are excluded.
4930 *) Allow the verify time to be set by an application,
4931 rather than always using the current time.
4934 *) Phase 2 verify code reorganisation. The certificate
4935 verify code now looks up an issuer certificate by a
4936 number of criteria: subject name, authority key id
4937 and key usage. It also verifies self signed certificates
4938 by the same criteria. The main comparison function is
4939 X509_check_issued() which performs these checks.
4941 Lot of changes were necessary in order to support this
4942 without completely rewriting the lookup code.
4944 Authority and subject key identifier are now cached.
4946 The LHASH 'certs' is X509_STORE has now been replaced
4947 by a STACK_OF(X509_OBJECT). This is mainly because an
4948 LHASH can't store or retrieve multiple objects with
4949 the same hash value.
4951 As a result various functions (which were all internal
4952 use only) have changed to handle the new X509_STORE
4953 structure. This will break anything that messed round
4954 with X509_STORE internally.
4956 The functions X509_STORE_add_cert() now checks for an
4957 exact match, rather than just subject name.
4959 The X509_STORE API doesn't directly support the retrieval
4960 of multiple certificates matching a given criteria, however
4961 this can be worked round by performing a lookup first
4962 (which will fill the cache with candidate certificates)
4963 and then examining the cache for matches. This is probably
4964 the best we can do without throwing out X509_LOOKUP
4965 entirely (maybe later...).
4967 The X509_VERIFY_CTX structure has been enhanced considerably.
4969 All certificate lookup operations now go via a get_issuer()
4970 callback. Although this currently uses an X509_STORE it
4971 can be replaced by custom lookups. This is a simple way
4972 to bypass the X509_STORE hackery necessary to make this
4973 work and makes it possible to use more efficient techniques
4974 in future. A very simple version which uses a simple
4975 STACK for its trusted certificate store is also provided
4976 using X509_STORE_CTX_trusted_stack().
4978 The verify_cb() and verify() callbacks now have equivalents
4979 in the X509_STORE_CTX structure.
4981 X509_STORE_CTX also has a 'flags' field which can be used
4982 to customise the verify behaviour.
4985 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4986 excludes S/MIME capabilities.
4989 *) When a certificate request is read in keep a copy of the
4990 original encoding of the signed data and use it when outputing
4991 again. Signatures then use the original encoding rather than
4992 a decoded, encoded version which may cause problems if the
4993 request is improperly encoded.
4996 *) For consistency with other BIO_puts implementations, call
4997 buffer_write(b, ...) directly in buffer_puts instead of calling
5000 In BIO_puts, increment b->num_write as in BIO_write.
5001 [Peter.Sylvester@EdelWeb.fr]
5003 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5004 BN_zero, we may not return a BIGNUM with an array consisting of
5008 *) Avoid calling abort() from within the library when problems are
5009 detected, except if preprocessor symbols have been defined
5010 (such as REF_CHECK, BN_DEBUG etc.).
5013 *) New openssl application 'rsautl'. This utility can be
5014 used for low level RSA operations. DER public key
5015 BIO/fp routines also added.
5018 *) New Configure entry and patches for compiling on QNX 4.
5019 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5021 *) A demo state-machine implementation was sponsored by
5022 Nuron (http://www.nuron.com/) and is now available in
5023 demos/state_machine.
5026 *) New options added to the 'dgst' utility for signature
5027 generation and verification.
5030 *) Unrecognized PKCS#7 content types are now handled via a
5031 catch all ASN1_TYPE structure. This allows unsupported
5032 types to be stored as a "blob" and an application can
5033 encode and decode it manually.
5036 *) Fix various signed/unsigned issues to make a_strex.c
5038 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5040 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5041 length if passed a buffer. ASN1_INTEGER_to_BN failed
5042 if passed a NULL BN and its argument was negative.
5043 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5045 *) Modification to PKCS#7 encoding routines to output definite
5046 length encoding. Since currently the whole structures are in
5047 memory there's not real point in using indefinite length
5048 constructed encoding. However if OpenSSL is compiled with
5049 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5052 *) Added BIO_vprintf() and BIO_vsnprintf().
5055 *) Added more prefixes to parse for in the the strings written
5056 through a logging bio, to cover all the levels that are available
5057 through syslog. The prefixes are now:
5059 PANIC, EMERG, EMR => LOG_EMERG
5060 ALERT, ALR => LOG_ALERT
5061 CRIT, CRI => LOG_CRIT
5062 ERROR, ERR => LOG_ERR
5063 WARNING, WARN, WAR => LOG_WARNING
5064 NOTICE, NOTE, NOT => LOG_NOTICE
5065 INFO, INF => LOG_INFO
5066 DEBUG, DBG => LOG_DEBUG
5068 and as before, if none of those prefixes are present at the
5069 beginning of the string, LOG_ERR is chosen.
5071 On Win32, the LOG_* levels are mapped according to this:
5073 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5074 LOG_WARNING => EVENTLOG_WARNING_TYPE
5075 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5079 *) Made it possible to reconfigure with just the configuration
5080 argument "reconf" or "reconfigure". The command line arguments
5081 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5082 and are retrieved from there when reconfiguring.
5086 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5088 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5091 *) The obj_dat.pl script was messing up the sorting of object
5092 names. The reason was that it compared the quoted version
5093 of strings as a result "OCSP" > "OCSP Signing" because
5094 " > SPACE. Changed script to store unquoted versions of
5095 names and add quotes on output. It was also omitting some
5096 names from the lookup table if they were given a default
5097 value (that is if SN is missing it is given the same
5098 value as LN and vice versa), these are now added on the
5099 grounds that if an object has a name we should be able to
5100 look it up. Finally added warning output when duplicate
5101 short or long names are found.
5104 *) Changes needed for Tandem NSK.
5105 [Scott Uroff <scott@xypro.com>]
5107 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5108 RSA_padding_check_SSLv23(), special padding was never detected
5109 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5110 version rollback attacks was not effective.
5112 In s23_clnt.c, don't use special rollback-attack detection padding
5113 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5114 client; similarly, in s23_srvr.c, don't do the rollback check if
5115 SSL 2.0 is the only protocol enabled in the server.
5118 *) Make it possible to get hexdumps of unprintable data with 'openssl
5119 asn1parse'. By implication, the functions ASN1_parse_dump() and
5120 BIO_dump_indent() are added.
5123 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5124 these print out strings and name structures based on various
5125 flags including RFC2253 support and proper handling of
5126 multibyte characters. Added options to the 'x509' utility
5127 to allow the various flags to be set.
5130 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5131 Also change the functions X509_cmp_current_time() and
5132 X509_gmtime_adj() work with an ASN1_TIME structure,
5133 this will enable certificates using GeneralizedTime in validity
5134 dates to be checked.
5137 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5138 negative public key encodings) on by default,
5139 NO_NEG_PUBKEY_BUG can be set to disable it.
5142 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5143 content octets. An i2c_ASN1_OBJECT is unnecessary because
5144 the encoding can be trivially obtained from the structure.
5147 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5148 not read locks (CRYPTO_r_[un]lock).
5151 *) A first attempt at creating official support for shared
5152 libraries through configuration. I've kept it so the
5153 default is static libraries only, and the OpenSSL programs
5154 are always statically linked for now, but there are
5155 preparations for dynamic linking in place.
5156 This has been tested on Linux and Tru64.
5159 *) Randomness polling function for Win9x, as described in:
5160 Peter Gutmann, Software Generation of Practically Strong
5164 *) Fix so PRNG is seeded in req if using an already existing
5168 *) New options to smime application. -inform and -outform
5169 allow alternative formats for the S/MIME message including
5170 PEM and DER. The -content option allows the content to be
5171 specified separately. This should allow things like Netscape
5172 form signing output easier to verify.
5175 *) Fix the ASN1 encoding of tags using the 'long form'.
5178 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5179 STRING types. These convert content octets to and from the
5180 underlying type. The actual tag and length octets are
5181 already assumed to have been read in and checked. These
5182 are needed because all other string types have virtually
5183 identical handling apart from the tag. By having versions
5184 of the ASN1 functions that just operate on content octets
5185 IMPLICIT tagging can be handled properly. It also allows
5186 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5187 and ASN1_INTEGER are identical apart from the tag.
5190 *) Change the handling of OID objects as follows:
5192 - New object identifiers are inserted in objects.txt, following
5193 the syntax given in objects.README.
5194 - objects.pl is used to process obj_mac.num and create a new
5196 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5199 This is currently kind of a hack, and the perl code in objects.pl
5200 isn't very elegant, but it works as I intended. The simplest way
5201 to check that it worked correctly is to look in obj_dat.h and
5202 check the array nid_objs and make sure the objects haven't moved
5203 around (this is important!). Additions are OK, as well as
5204 consistent name changes.
5207 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5210 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5211 The given file adds to whatever has already been seeded into the
5212 random pool through the RANDFILE configuration file option or
5213 environment variable, or the default random state file.
5216 *) mkstack.pl now sorts each macro group into lexical order.
5217 Previously the output order depended on the order the files
5218 appeared in the directory, resulting in needless rewriting
5222 *) Patches to make OpenSSL compile under Win32 again. Mostly
5223 work arounds for the VC++ problem that it treats func() as
5224 func(void). Also stripped out the parts of mkdef.pl that
5225 added extra typesafe functions: these no longer exist.
5228 *) Reorganisation of the stack code. The macros are now all
5229 collected in safestack.h . Each macro is defined in terms of
5230 a "stack macro" of the form SKM_<name>(type, a, b). The
5231 DEBUG_SAFESTACK is now handled in terms of function casts,
5232 this has the advantage of retaining type safety without the
5233 use of additional functions. If DEBUG_SAFESTACK is not defined
5234 then the non typesafe macros are used instead. Also modified the
5235 mkstack.pl script to handle the new form. Needs testing to see
5236 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5237 the default if no major problems. Similar behaviour for ASN1_SET_OF
5238 and PKCS12_STACK_OF.
5241 *) When some versions of IIS use the 'NET' form of private key the
5242 key derivation algorithm is different. Normally MD5(password) is
5243 used as a 128 bit RC4 key. In the modified case
5244 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5245 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5246 as the old Netscape_RSA functions except they have an additional
5247 'sgckey' parameter which uses the modified algorithm. Also added
5248 an -sgckey command line option to the rsa utility. Thanks to
5249 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5250 algorithm to openssl-dev.
5253 *) The evp_local.h macros were using 'c.##kname' which resulted in
5254 invalid expansion on some systems (SCO 5.0.5 for example).
5255 Corrected to 'c.kname'.
5256 [Phillip Porch <root@theporch.com>]
5258 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5259 a STACK of email addresses from a certificate or request, these look
5260 in the subject name and the subject alternative name extensions and
5261 omit any duplicate addresses.
5264 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5265 This makes DSA verification about 2 % faster.
5268 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5269 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5270 plus overhead for 1024 bit moduli).
5271 This makes exponentiations about 0.5 % faster for 1024 bit
5272 exponents (as measured by "openssl speed rsa2048").
5275 *) Rename memory handling macros to avoid conflicts with other
5277 Malloc => OPENSSL_malloc
5278 Malloc_locked => OPENSSL_malloc_locked
5279 Realloc => OPENSSL_realloc
5280 Free => OPENSSL_free
5283 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5284 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5287 *) CygWin32 support.
5288 [John Jarvie <jjarvie@newsguy.com>]
5290 *) The type-safe stack code has been rejigged. It is now only compiled
5291 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5292 by default all type-specific stack functions are "#define"d back to
5293 standard stack functions. This results in more streamlined output
5294 but retains the type-safety checking possibilities of the original
5298 *) The STACK code has been cleaned up, and certain type declarations
5299 that didn't make a lot of sense have been brought in line. This has
5300 also involved a cleanup of sorts in safestack.h to more correctly
5301 map type-safe stack functions onto their plain stack counterparts.
5302 This work has also resulted in a variety of "const"ifications of
5303 lots of the code, especially "_cmp" operations which should normally
5304 be prototyped with "const" parameters anyway.
5307 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5308 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5309 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5310 where all of 'md' is used each time the PRNG is used, but 'state'
5311 is used only indexed by a cyclic counter. As entropy may not be
5312 well distributed from the beginning, 'md' is important as a
5313 chaining variable. However, the output function chains only half
5314 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5315 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5316 in all of 'state' being rewritten, with the new values depending
5317 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5320 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5321 the handshake is continued after ssl_verify_cert_chain();
5322 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5323 can lead to 'unexplainable' connection aborts later.
5324 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5326 *) Major EVP API cipher revision.
5327 Add hooks for extra EVP features. This allows various cipher
5328 parameters to be set in the EVP interface. Support added for variable
5329 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5330 setting of RC2 and RC5 parameters.
5332 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5335 Remove lots of duplicated code from the EVP library. For example *every*
5336 cipher init() function handles the 'iv' in the same way according to the
5337 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5338 for CFB and OFB modes they zero ctx->num.
5340 New functionality allows removal of S/MIME code RC2 hack.
5342 Most of the routines have the same form and so can be declared in terms
5345 By shifting this to the top level EVP_CipherInit() it can be removed from
5346 all individual ciphers. If the cipher wants to handle IVs or keys
5347 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5350 Change lots of functions like EVP_EncryptUpdate() to now return a
5351 value: although software versions of the algorithms cannot fail
5352 any installed hardware versions can.
5355 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5356 this option is set, tolerate broken clients that send the negotiated
5357 protocol version number instead of the requested protocol version
5361 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5362 i.e. non-zero for export ciphersuites, zero otherwise.
5363 Previous versions had this flag inverted, inconsistent with
5364 rsa_tmp_cb (..._TMP_RSA_CB).
5365 [Bodo Moeller; problem reported by Amit Chopra]
5367 *) Add missing DSA library text string. Work around for some IIS
5368 key files with invalid SEQUENCE encoding.
5371 *) Add a document (doc/standards.txt) that list all kinds of standards
5372 and so on that are implemented in OpenSSL.
5375 *) Enhance c_rehash script. Old version would mishandle certificates
5376 with the same subject name hash and wouldn't handle CRLs at all.
5377 Added -fingerprint option to crl utility, to support new c_rehash
5381 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5384 *) Fix for SSL server purpose checking. Server checking was
5385 rejecting certificates which had extended key usage present
5386 but no ssl client purpose.
5387 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5389 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5390 is a little unclear about how a blank password is handled.
5391 Since the password in encoded as a BMPString with terminating
5392 double NULL a zero length password would end up as just the
5393 double NULL. However no password at all is different and is
5394 handled differently in the PKCS#12 key generation code. NS
5395 treats a blank password as zero length. MSIE treats it as no
5396 password on export: but it will try both on import. We now do
5397 the same: PKCS12_parse() tries zero length and no password if
5398 the password is set to "" or NULL (NULL is now a valid password:
5399 it wasn't before) as does the pkcs12 application.
5402 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5403 perror when PEM_read_bio_X509_REQ fails, the error message must
5404 be obtained from the error queue.
5407 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5408 it in ERR_remove_state if appropriate, and change ERR_get_state
5409 accordingly to avoid race conditions (this is necessary because
5410 thread_hash is no longer constant once set).
5413 *) Bugfix for linux-elf makefile.one.
5416 *) RSA_get_default_method() will now cause a default
5417 RSA_METHOD to be chosen if one doesn't exist already.
5418 Previously this was only set during a call to RSA_new()
5419 or RSA_new_method(NULL) meaning it was possible for
5420 RSA_get_default_method() to return NULL.
5423 *) Added native name translation to the existing DSO code
5424 that will convert (if the flag to do so is set) filenames
5425 that are sufficiently small and have no path information
5426 into a canonical native form. Eg. "blah" converted to
5427 "libblah.so" or "blah.dll" etc.
5430 *) New function ERR_error_string_n(e, buf, len) which is like
5431 ERR_error_string(e, buf), but writes at most 'len' bytes
5432 including the 0 terminator. For ERR_error_string_n, 'buf'
5434 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5436 *) CONF library reworked to become more general. A new CONF
5437 configuration file reader "class" is implemented as well as a
5438 new functions (NCONF_*, for "New CONF") to handle it. The now
5439 old CONF_* functions are still there, but are reimplemented to
5440 work in terms of the new functions. Also, a set of functions
5441 to handle the internal storage of the configuration data is
5442 provided to make it easier to write new configuration file
5443 reader "classes" (I can definitely see something reading a
5444 configuration file in XML format, for example), called _CONF_*,
5445 or "the configuration storage API"...
5447 The new configuration file reading functions are:
5449 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5450 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5452 NCONF_default, NCONF_WIN32
5454 NCONF_dump_fp, NCONF_dump_bio
5456 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5457 NCONF_new creates a new CONF object. This works in the same way
5458 as other interfaces in OpenSSL, like the BIO interface.
5459 NCONF_dump_* dump the internal storage of the configuration file,
5460 which is useful for debugging. All other functions take the same
5461 arguments as the old CONF_* functions wth the exception of the
5462 first that must be a `CONF *' instead of a `LHASH *'.
5464 To make it easer to use the new classes with the old CONF_* functions,
5465 the function CONF_set_default_method is provided.
5468 *) Add '-tls1' option to 'openssl ciphers', which was already
5469 mentioned in the documentation but had not been implemented.
5470 (This option is not yet really useful because even the additional
5471 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5474 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5475 OpenSSL-based applications) load shared libraries and bind to
5476 them in a portable way.
5477 [Geoff Thorpe, with contributions from Richard Levitte]
5479 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5481 *) Make sure _lrotl and _lrotr are only used with MSVC.
5483 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5484 (the default implementation of RAND_status).
5486 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5487 to '-clrext' (= clear extensions), as intended and documented.
5488 [Bodo Moeller; inconsistency pointed out by Michael Attili
5491 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5492 was larger than the MD block size.
5493 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5495 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5496 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5497 using the passed key: if the passed key was a private key the result
5498 of X509_print(), for example, would be to print out all the private key
5502 *) des_quad_cksum() byte order bug fix.
5503 [Ulf Möller, using the problem description in krb4-0.9.7, where
5504 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5506 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5508 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5510 *) For easily testing in shell scripts whether some command
5511 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5512 returns with exit code 0 iff no command of the given name is available.
5513 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5514 the output goes to stdout and nothing is printed to stderr.
5515 Additional arguments are always ignored.
5517 Since for each cipher there is a command of the same name,
5518 the 'no-cipher' compilation switches can be tested this way.
5520 ('openssl no-XXX' is not able to detect pseudo-commands such
5521 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5524 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5527 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5528 is set; it will be thrown away anyway because each handshake creates
5530 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5531 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5532 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5533 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5536 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5537 'Q' and 'R' lose their special meanings (quit/renegotiate).
5538 This is part of what -quiet does; unlike -quiet, -ign_eof
5539 does not suppress any output.
5542 *) Add compatibility options to the purpose and trust code. The
5543 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5544 accepts a certificate or CA, this was the previous behaviour,
5545 with all the associated security issues.
5547 X509_TRUST_COMPAT is the old trust behaviour: only and
5548 automatically trust self signed roots in certificate store. A
5549 new trust setting X509_TRUST_DEFAULT is used to specify that
5550 a purpose has no associated trust setting and it should instead
5551 use the value in the default purpose.
5554 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5555 and fix a memory leak.
5558 *) In util/mkerr.pl (which implements 'make errors'), preserve
5559 reason strings from the previous version of the .c file, as
5560 the default to have only downcase letters (and digits) in
5561 automatically generated reasons codes is not always appropriate.
5564 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5565 using strerror. Previously, ERR_reason_error_string() returned
5566 library names as reason strings for SYSerr; but SYSerr is a special
5567 case where small numbers are errno values, not library numbers.
5570 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5571 converts DSA parameters into DH parameters. (When creating parameters,
5572 DSA_generate_parameters is used.)
5575 *) Include 'length' (recommended exponent length) in C code generated
5576 by 'openssl dhparam -C'.
5579 *) The second argument to set_label in perlasm was already being used
5580 so couldn't be used as a "file scope" flag. Moved to third argument
5584 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5585 instead of RAND_bytes for encryption IVs and salts.
5588 *) Include RAND_status() into RAND_METHOD instead of implementing
5589 it only for md_rand.c Otherwise replacing the PRNG by calling
5590 RAND_set_rand_method would be impossible.
5593 *) Don't let DSA_generate_key() enter an infinite loop if the random
5594 number generation fails.
5597 *) New 'rand' application for creating pseudo-random output.
5600 *) Added configuration support for Linux/IA64
5601 [Rolf Haberrecker <rolf@suse.de>]
5603 *) Assembler module support for Mingw32.
5606 *) Shared library support for HPUX (in shlib/).
5607 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5609 *) Shared library support for Solaris gcc.
5610 [Lutz Behnke <behnke@trustcenter.de>]
5612 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5614 *) PKCS7_encrypt() was adding text MIME headers twice because they
5615 were added manually and by SMIME_crlf_copy().
5618 *) In bntest.c don't call BN_rand with zero bits argument.
5619 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5621 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5622 case was implemented. This caused BN_div_recp() to fail occasionally.
5625 *) Add an optional second argument to the set_label() in the perl
5626 assembly language builder. If this argument exists and is set
5627 to 1 it signals that the assembler should use a symbol whose
5628 scope is the entire file, not just the current function. This
5629 is needed with MASM which uses the format label:: for this scope.
5630 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5632 *) Change the ASN1 types so they are typedefs by default. Before
5633 almost all types were #define'd to ASN1_STRING which was causing
5634 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5638 *) Change names of new functions to the new get1/get0 naming
5639 convention: After 'get1', the caller owns a reference count
5640 and has to call ..._free; 'get0' returns a pointer to some
5641 data structure without incrementing reference counters.
5642 (Some of the existing 'get' functions increment a reference
5643 counter, some don't.)
5644 Similarly, 'set1' and 'add1' functions increase reference
5645 counters or duplicate objects.
5648 *) Allow for the possibility of temp RSA key generation failure:
5649 the code used to assume it always worked and crashed on failure.
5652 *) Fix potential buffer overrun problem in BIO_printf().
5653 [Ulf Möller, using public domain code by Patrick Powell; problem
5654 pointed out by David Sacerdote <das33@cornell.edu>]
5656 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5657 RAND_egd() and RAND_status(). In the command line application,
5658 the EGD socket can be specified like a seed file using RANDFILE
5662 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5663 Some CAs (e.g. Verisign) distribute certificates in this form.
5666 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5667 list to exclude them. This means that no special compilation option
5668 is needed to use anonymous DH: it just needs to be included in the
5672 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5673 EVP_MD_type. The old functionality is available in a new macro called
5674 EVP_MD_md(). Change code that uses it and update docs.
5677 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5678 where the 'void *' argument is replaced by a function pointer argument.
5679 Previously 'void *' was abused to point to functions, which works on
5680 many platforms, but is not correct. As these functions are usually
5681 called by macros defined in OpenSSL header files, most source code
5682 should work without changes.
5685 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5686 sections with information on -D... compiler switches used for
5687 compiling the library so that applications can see them. To enable
5688 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5689 must be defined. E.g.,
5690 #define OPENSSL_ALGORITHM_DEFINES
5691 #include <openssl/opensslconf.h>
5692 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5693 [Richard Levitte, Ulf and Bodo Möller]
5695 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5699 *) Change the 'other' type in certificate aux info to a STACK_OF
5700 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5701 the required ASN1 format: arbitrary types determined by an OID.
5704 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5705 argument to 'req'. This is not because the function is newer or
5706 better than others it just uses the work 'NEW' in the certificate
5707 request header lines. Some software needs this.
5710 *) Reorganise password command line arguments: now passwords can be
5711 obtained from various sources. Delete the PEM_cb function and make
5712 it the default behaviour: i.e. if the callback is NULL and the
5713 usrdata argument is not NULL interpret it as a null terminated pass
5714 phrase. If usrdata and the callback are NULL then the pass phrase
5715 is prompted for as usual.
5718 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5719 the support is automatically enabled. The resulting binaries will
5720 autodetect the card and use it if present.
5721 [Ben Laurie and Compaq Inc.]
5723 *) Work around for Netscape hang bug. This sends certificate request
5724 and server done in one record. Since this is perfectly legal in the
5725 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5726 the bugs/SSLv3 entry for more info.
5729 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5732 *) Add -rand argument to smime and pkcs12 applications and read/write
5736 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5739 *) Add command line password options to the remaining applications.
5742 *) Bug fix for BN_div_recp() for numerators with an even number of
5746 *) More tests in bntest.c, and changed test_bn output.
5749 *) ./config recognizes MacOS X now.
5752 *) Bug fix for BN_div() when the first words of num and divsor are
5753 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5756 *) Add support for various broken PKCS#8 formats, and command line
5757 options to produce them.
5760 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5761 get temporary BIGNUMs from a BN_CTX.
5764 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5768 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5769 include a #define from the old name to the new. The original intent
5770 was that statically linked binaries could for example just call
5771 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5772 link with digests. This never worked becayse SSLeay_add_all_digests()
5773 and SSLeay_add_all_ciphers() were in the same source file so calling
5774 one would link with the other. They are now in separate source files.
5777 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5780 *) Use a less unusual form of the Miller-Rabin primality test (it used
5781 a binary algorithm for exponentiation integrated into the Miller-Rabin
5782 loop, our standard modexp algorithms are faster).
5785 *) Support for the EBCDIC character set completed.
5786 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5788 *) Source code cleanups: use const where appropriate, eliminate casts,
5789 use void * instead of char * in lhash.
5792 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5793 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5794 this the server could overwrite ephemeral keys that the client
5798 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5799 using 50 iterations of the Rabin-Miller test.
5801 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5802 iterations of the Rabin-Miller test as required by the appendix
5803 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5804 As BN_is_prime_fasttest includes trial division, DSA parameter
5805 generation becomes much faster.
5807 This implies a change for the callback functions in DSA_is_prime
5808 and DSA_generate_parameters: The callback function is called once
5809 for each positive witness in the Rabin-Miller test, not just
5810 occasionally in the inner loop; and the parameters to the
5811 callback function now provide an iteration count for the outer
5812 loop rather than for the current invocation of the inner loop.
5813 DSA_generate_parameters additionally can call the callback
5814 function with an 'iteration count' of -1, meaning that a
5815 candidate has passed the trial division test (when q is generated
5816 from an application-provided seed, trial division is skipped).
5819 *) New function BN_is_prime_fasttest that optionally does trial
5820 division before starting the Rabin-Miller test and has
5821 an additional BN_CTX * argument (whereas BN_is_prime always
5822 has to allocate at least one BN_CTX).
5823 'callback(1, -1, cb_arg)' is called when a number has passed the
5824 trial division stage.
5827 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5831 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5834 *) New function BN_pseudo_rand().
5837 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5838 bignum version of BN_from_montgomery() with the working code from
5839 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5843 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5844 made it impossible to use the same SSL_SESSION data structure in
5845 SSL2 clients in multiple threads.
5848 *) The return value of RAND_load_file() no longer counts bytes obtained
5849 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5850 to seed the PRNG (previously an explicit byte count was required).
5851 [Ulf Möller, Bodo Möller]
5853 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5854 used (char *) instead of (void *) and had casts all over the place.
5857 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5860 *) Retain source code compatibility for BN_prime_checks macro:
5861 BN_is_prime(..., BN_prime_checks, ...) now uses
5862 BN_prime_checks_for_size to determine the appropriate number of
5863 Rabin-Miller iterations.
5866 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5867 DH_CHECK_P_NOT_SAFE_PRIME.
5868 (Check if this is true? OpenPGP calls them "strong".)
5871 *) Merge the functionality of "dh" and "gendh" programs into a new program
5872 "dhparam". The old programs are retained for now but will handle DH keys
5873 (instead of parameters) in future.
5876 *) Make the ciphers, s_server and s_client programs check the return values
5877 when a new cipher list is set.
5880 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5881 ciphers. Before when the 56bit ciphers were enabled the sorting was
5884 The syntax for the cipher sorting has been extended to support sorting by
5885 cipher-strength (using the strength_bits hard coded in the tables).
5886 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5888 Fix a bug in the cipher-command parser: when supplying a cipher command
5889 string with an "undefined" symbol (neither command nor alphanumeric
5890 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5891 an error is flagged.
5893 Due to the strength-sorting extension, the code of the
5894 ssl_create_cipher_list() function was completely rearranged. I hope that
5895 the readability was also increased :-)
5896 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5898 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5899 for the first serial number and places 2 in the serial number file. This
5900 avoids problems when the root CA is created with serial number zero and
5901 the first user certificate has the same issuer name and serial number
5905 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5906 the new code. Add documentation for this stuff.
5909 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5910 X509_*() to X509at_*() on the grounds that they don't handle X509
5911 structures and behave in an analagous way to the X509v3 functions:
5912 they shouldn't be called directly but wrapper functions should be used
5915 So we also now have some wrapper functions that call the X509at functions
5916 when passed certificate requests. (TO DO: similar things can be done with
5917 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5918 things. Some of these need some d2i or i2d and print functionality
5919 because they handle more complex structures.)
5922 *) Add missing #ifndefs that caused missing symbols when building libssl
5923 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5924 NO_RSA in ssl/s2*.c.
5925 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5927 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5928 has a return value which indicates the quality of the random data
5929 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5930 error queue. New function RAND_pseudo_bytes() generates output that is
5931 guaranteed to be unique but not unpredictable. RAND_add is like
5932 RAND_seed, but takes an extra argument for an entropy estimate
5933 (RAND_seed always assumes full entropy).
5936 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5937 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5938 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5939 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5940 false-positive rate of at most 2^-80 for random input.
5943 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5946 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5947 in the 0.9.5 release), this returns the chain
5948 from an X509_CTX structure with a dup of the stack and all
5949 the X509 reference counts upped: so the stack will exist
5950 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5953 Also make SSL_SESSION_print() print out the verify return
5957 *) Add manpage for the pkcs12 command. Also change the default
5958 behaviour so MAC iteration counts are used unless the new
5959 -nomaciter option is used. This improves file security and
5960 only older versions of MSIE (4.0 for example) need it.
5963 *) Honor the no-xxx Configure options when creating .DEF files.
5966 *) Add PKCS#10 attributes to field table: challengePassword,
5967 unstructuredName and unstructuredAddress. These are taken from
5968 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5969 international characters are used.
5971 More changes to X509_ATTRIBUTE code: allow the setting of types
5972 based on strings. Remove the 'loc' parameter when adding
5973 attributes because these will be a SET OF encoding which is sorted
5977 *) Initial changes to the 'req' utility to allow request generation
5978 automation. This will allow an application to just generate a template
5979 file containing all the field values and have req construct the
5982 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5983 used all over the place including certificate requests and PKCS#7
5984 structures. They are currently handled manually where necessary with
5985 some primitive wrappers for PKCS#7. The new functions behave in a
5986 manner analogous to the X509 extension functions: they allow
5987 attributes to be looked up by NID and added.
5989 Later something similar to the X509V3 code would be desirable to
5990 automatically handle the encoding, decoding and printing of the
5991 more complex types. The string types like challengePassword can
5992 be handled by the string table functions.
5994 Also modified the multi byte string table handling. Now there is
5995 a 'global mask' which masks out certain types. The table itself
5996 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5997 is useful when for example there is only one permissible type
5998 (as in countryName) and using the mask might result in no valid
6002 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6003 SSL_get_peer_finished to allow applications to obtain the latest
6004 Finished messages sent to the peer or expected from the peer,
6005 respectively. (SSL_get_peer_finished is usually the Finished message
6006 actually received from the peer, otherwise the protocol will be aborted.)
6008 As the Finished message are message digests of the complete handshake
6009 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6010 be used for external authentication procedures when the authentication
6011 provided by SSL/TLS is not desired or is not enough.
6014 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6015 the host supports BWX extension and if Compaq C is present on the
6016 $PATH. Just exploiting of the BWX extension results in 20-30%
6017 performance kick for some algorithms, e.g. DES and RC4 to mention
6018 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6022 *) Add support for MS "fast SGC". This is arguably a violation of the
6023 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6024 weak crypto and after checking the certificate is SGC a second one
6025 with strong crypto. MS SGC stops the first handshake after receiving
6026 the server certificate message and sends a second client hello. Since
6027 a server will typically do all the time consuming operations before
6028 expecting any further messages from the client (server key exchange
6029 is the most expensive) there is little difference between the two.
6031 To get OpenSSL to support MS SGC we have to permit a second client
6032 hello message after we have sent server done. In addition we have to
6033 reset the MAC if we do get this second client hello.
6036 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6037 if a DER encoded private key is RSA or DSA traditional format. Changed
6038 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6039 format DER encoded private key. Newer code should use PKCS#8 format which
6040 has the key type encoded in the ASN1 structure. Added DER private key
6041 support to pkcs8 application.
6044 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6045 ciphersuites has been selected (as required by the SSL 3/TLS 1
6046 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6047 is set, we interpret this as a request to violate the specification
6048 (the worst that can happen is a handshake failure, and 'correct'
6049 behaviour would result in a handshake failure anyway).
6052 *) In SSL_CTX_add_session, take into account that there might be multiple
6053 SSL_SESSION structures with the same session ID (e.g. when two threads
6054 concurrently obtain them from an external cache).
6055 The internal cache can handle only one SSL_SESSION with a given ID,
6056 so if there's a conflict, we now throw out the old one to achieve
6060 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6061 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6062 some routines that use cipher OIDs: some ciphers do not have OIDs
6063 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6067 *) Simplify the trust setting structure and code. Now we just have
6068 two sequences of OIDs for trusted and rejected settings. These will
6069 typically have values the same as the extended key usage extension
6070 and any application specific purposes.
6072 The trust checking code now has a default behaviour: it will just
6073 check for an object with the same NID as the passed id. Functions can
6074 be provided to override either the default behaviour or the behaviour
6075 for a given id. SSL client, server and email already have functions
6076 in place for compatibility: they check the NID and also return "trusted"
6077 if the certificate is self signed.
6080 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6081 traditional format into an EVP_PKEY structure.
6084 *) Add a password callback function PEM_cb() which either prompts for
6085 a password if usr_data is NULL or otherwise assumes it is a null
6086 terminated password. Allow passwords to be passed on command line
6087 environment or config files in a few more utilities.
6090 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6091 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6092 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6093 Update documentation.
6096 *) Support for ASN1 "NULL" type. This could be handled before by using
6097 ASN1_TYPE but there wasn't any function that would try to read a NULL
6098 and produce an error if it couldn't. For compatibility we also have
6099 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6100 don't allocate anything because they don't need to.
6103 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6105 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6107 *) Rebuild of the memory allocation routines used by OpenSSL code and
6108 possibly others as well. The purpose is to make an interface that
6109 provide hooks so anyone can build a separate set of allocation and
6110 deallocation routines to be used by OpenSSL, for example memory
6111 pool implementations, or something else, which was previously hard
6112 since Malloc(), Realloc() and Free() were defined as macros having
6113 the values malloc, realloc and free, respectively (except for Win32
6114 compilations). The same is provided for memory debugging code.
6115 OpenSSL already comes with functionality to find memory leaks, but
6116 this gives people a chance to debug other memory problems.
6118 With these changes, a new set of functions and macros have appeared:
6120 CRYPTO_set_mem_debug_functions() [F]
6121 CRYPTO_get_mem_debug_functions() [F]
6122 CRYPTO_dbg_set_options() [F]
6123 CRYPTO_dbg_get_options() [F]
6124 CRYPTO_malloc_debug_init() [M]
6126 The memory debug functions are NULL by default, unless the library
6127 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6128 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6129 gives the standard debugging functions that come with OpenSSL) or
6130 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6131 provided by the library user) must be used. When the standard
6132 debugging functions are used, CRYPTO_dbg_set_options can be used to
6133 request additional information:
6134 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6135 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6137 Also, things like CRYPTO_set_mem_functions will always give the
6138 expected result (the new set of functions is used for allocation
6139 and deallocation) at all times, regardless of platform and compiler
6142 To finish it up, some functions that were never use in any other
6143 way than through macros have a new API and new semantic:
6146 CRYPTO_dbg_realloc()
6149 All macros of value have retained their old syntax.
6150 [Richard Levitte and Bodo Moeller]
6152 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6153 ordering of SMIMECapabilities wasn't in "strength order" and there
6154 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6158 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6159 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6160 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6162 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6163 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6164 functionality to handle multipart/signed properly) and a utility
6165 called 'smime' to call all this stuff. This is based on code I
6166 originally wrote for Celo who have kindly allowed it to be
6167 included in OpenSSL.
6170 *) Add variants des_set_key_checked and des_set_key_unchecked of
6171 des_set_key (aka des_key_sched). Global variable des_check_key
6172 decides which of these is called by des_set_key; this way
6173 des_check_key behaves as it always did, but applications and
6174 the library itself, which was buggy for des_check_key == 1,
6175 have a cleaner way to pick the version they need.
6178 *) New function PKCS12_newpass() which changes the password of a
6182 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6183 dynamic mix. In both cases the ids can be used as an index into the
6184 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6185 functions so they accept a list of the field values and the
6186 application doesn't need to directly manipulate the X509_TRUST
6190 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6194 *) Modify the way the V3 extension code looks up extensions. This now
6195 works in a similar way to the object code: we have some "standard"
6196 extensions in a static table which is searched with OBJ_bsearch()
6197 and the application can add dynamic ones if needed. The file
6198 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6199 updated whenever a new extension is added to the core code and kept
6200 in ext_nid order. There is a simple program 'tabtest.c' which checks
6201 this. New extensions are not added too often so this file can readily
6202 be maintained manually.
6204 There are two big advantages in doing things this way. The extensions
6205 can be looked up immediately and no longer need to be "added" using
6206 X509V3_add_standard_extensions(): this function now does nothing.
6207 [Side note: I get *lots* of email saying the extension code doesn't
6208 work because people forget to call this function]
6209 Also no dynamic allocation is done unless new extensions are added:
6210 so if we don't add custom extensions there is no need to call
6211 X509V3_EXT_cleanup().
6214 *) Modify enc utility's salting as follows: make salting the default. Add a
6215 magic header, so unsalted files fail gracefully instead of just decrypting
6216 to garbage. This is because not salting is a big security hole, so people
6217 should be discouraged from doing it.
6220 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6221 digest to be passed on the command line but it only used this
6222 parameter when signing a certificate. Modified so all relevant
6223 operations are affected by the digest parameter including the
6224 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6225 DSA key was used because it didn't fix the digest.
6228 *) Initial certificate chain verify code. Currently tests the untrusted
6229 certificates for consistency with the verify purpose (which is set
6230 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6232 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6233 this is because it will reject chains with invalid extensions whereas
6234 every previous version of OpenSSL and SSLeay made no checks at all.
6236 Trust code: checks the root CA for the relevant trust settings. Trust
6237 settings have an initial value consistent with the verify purpose: e.g.
6238 if the verify purpose is for SSL client use it expects the CA to be
6239 trusted for SSL client use. However the default value can be changed to
6240 permit custom trust settings: one example of this would be to only trust
6241 certificates from a specific "secure" set of CAs.
6243 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6244 which should be used for version portability: especially since the
6245 verify structure is likely to change more often now.
6247 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6248 to set them. If not set then assume SSL clients will verify SSL servers
6251 Two new options to the verify program: -untrusted allows a set of
6252 untrusted certificates to be passed in and -purpose which sets the
6253 intended purpose of the certificate. If a purpose is set then the
6254 new chain verify code is used to check extension consistency.
6257 *) Support for the authority information access extension.
6260 *) Modify RSA and DSA PEM read routines to transparently handle
6261 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6262 public keys in a format compatible with certificate
6263 SubjectPublicKeyInfo structures. Unfortunately there were already
6264 functions called *_PublicKey_* which used various odd formats so
6265 these are retained for compatibility: however the DSA variants were
6266 never in a public release so they have been deleted. Changed dsa/rsa
6267 utilities to handle the new format: note no releases ever handled public
6268 keys so we should be OK.
6270 The primary motivation for this change is to avoid the same fiasco
6271 that dogs private keys: there are several incompatible private key
6272 formats some of which are standard and some OpenSSL specific and
6273 require various evil hacks to allow partial transparent handling and
6274 even then it doesn't work with DER formats. Given the option anything
6275 other than PKCS#8 should be dumped: but the other formats have to
6276 stay in the name of compatibility.
6278 With public keys and the benefit of hindsight one standard format
6279 is used which works with EVP_PKEY, RSA or DSA structures: though
6280 it clearly returns an error if you try to read the wrong kind of key.
6282 Added a -pubkey option to the 'x509' utility to output the public key.
6283 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6284 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6285 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6286 that do the same as the EVP_PKEY_assign_*() except they up the
6287 reference count of the added key (they don't "swallow" the
6291 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6292 CRLs would fail if the file contained no certificates or no CRLs:
6293 added a new function to read in both types and return the number
6294 read: this means that if none are read it will be an error. The
6295 DER versions of the certificate and CRL reader would always fail
6296 because it isn't possible to mix certificates and CRLs in DER format
6297 without choking one or the other routine. Changed this to just read
6298 a certificate: this is the best we can do. Also modified the code
6299 in apps/verify.c to take notice of return codes: it was previously
6300 attempting to read in certificates from NULL pointers and ignoring
6301 any errors: this is one reason why the cert and CRL reader seemed
6302 to work. It doesn't check return codes from the default certificate
6303 routines: these may well fail if the certificates aren't installed.
6306 *) Code to support otherName option in GeneralName.
6309 *) First update to verify code. Change the verify utility
6310 so it warns if it is passed a self signed certificate:
6311 for consistency with the normal behaviour. X509_verify
6312 has been modified to it will now verify a self signed
6313 certificate if *exactly* the same certificate appears
6314 in the store: it was previously impossible to trust a
6315 single self signed certificate. This means that:
6316 openssl verify ss.pem
6317 now gives a warning about a self signed certificate but
6318 openssl verify -CAfile ss.pem ss.pem
6322 *) For servers, store verify_result in SSL_SESSION data structure
6323 (and add it to external session representation).
6324 This is needed when client certificate verifications fails,
6325 but an application-provided verification callback (set by
6326 SSL_CTX_set_cert_verify_callback) allows accepting the session
6327 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6328 but returns 1): When the session is reused, we have to set
6329 ssl->verify_result to the appropriate error code to avoid
6331 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6333 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6334 case in PKCS7_dataInit() where the signed PKCS7 structure
6335 didn't contain any existing data because it was being created.
6336 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6338 *) Add a salt to the key derivation routines in enc.c. This
6339 forms the first 8 bytes of the encrypted file. Also add a
6340 -S option to allow a salt to be input on the command line.
6343 *) New function X509_cmp(). Oddly enough there wasn't a function
6344 to compare two certificates. We do this by working out the SHA1
6345 hash and comparing that. X509_cmp() will be needed by the trust
6349 *) SSL_get1_session() is like SSL_get_session(), but increments
6350 the reference count in the SSL_SESSION returned.
6351 [Geoff Thorpe <geoff@eu.c2.net>]
6353 *) Fix for 'req': it was adding a null to request attributes.
6354 Also change the X509_LOOKUP and X509_INFO code to handle
6355 certificate auxiliary information.
6358 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6362 *) Add the possibility to add extra information to the memory leak
6363 detecting output, to form tracebacks, showing from where each
6364 allocation was originated: CRYPTO_push_info("constant string") adds
6365 the string plus current file name and line number to a per-thread
6366 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6367 is like calling CYRPTO_pop_info() until the stack is empty.
6368 Also updated memory leak detection code to be multi-thread-safe.
6371 *) Add options -text and -noout to pkcs7 utility and delete the
6372 encryption options which never did anything. Update docs.
6375 *) Add options to some of the utilities to allow the pass phrase
6376 to be included on either the command line (not recommended on
6377 OSes like Unix) or read from the environment. Update the
6378 manpages and fix a few bugs.
6381 *) Add a few manpages for some of the openssl commands.
6384 *) Fix the -revoke option in ca. It was freeing up memory twice,
6385 leaking and not finding already revoked certificates.
6388 *) Extensive changes to support certificate auxiliary information.
6389 This involves the use of X509_CERT_AUX structure and X509_AUX
6390 functions. An X509_AUX function such as PEM_read_X509_AUX()
6391 can still read in a certificate file in the usual way but it
6392 will also read in any additional "auxiliary information". By
6393 doing things this way a fair degree of compatibility can be
6394 retained: existing certificates can have this information added
6395 using the new 'x509' options.
6397 Current auxiliary information includes an "alias" and some trust
6398 settings. The trust settings will ultimately be used in enhanced
6399 certificate chain verification routines: currently a certificate
6400 can only be trusted if it is self signed and then it is trusted
6404 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6405 The problem was that one of the replacement routines had not been working
6406 since SSLeay releases. For now the offending routine has been replaced
6407 with non-optimised assembler. Even so, this now gives around 95%
6408 performance improvement for 1024 bit RSA signs.
6411 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6412 handling. Most clients have the effective key size in bits equal to
6413 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6414 A few however don't do this and instead use the size of the decrypted key
6415 to determine the RC2 key length and the AlgorithmIdentifier to determine
6416 the effective key length. In this case the effective key length can still
6417 be 40 bits but the key length can be 168 bits for example. This is fixed
6418 by manually forcing an RC2 key into the EVP_PKEY structure because the
6419 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6420 the key length and effective key length are equal.
6423 *) Add a bunch of functions that should simplify the creation of
6424 X509_NAME structures. Now you should be able to do:
6425 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6426 and have it automatically work out the correct field type and fill in
6427 the structures. The more adventurous can try:
6428 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6429 and it will (hopefully) work out the correct multibyte encoding.
6432 *) Change the 'req' utility to use the new field handling and multibyte
6433 copy routines. Before the DN field creation was handled in an ad hoc
6434 way in req, ca, and x509 which was rather broken and didn't support
6435 BMPStrings or UTF8Strings. Since some software doesn't implement
6436 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6437 using the dirstring_type option. See the new comment in the default
6438 openssl.cnf for more info.
6441 *) Make crypto/rand/md_rand.c more robust:
6442 - Assure unique random numbers after fork().
6443 - Make sure that concurrent threads access the global counter and
6444 md serializably so that we never lose entropy in them
6445 or use exactly the same state in multiple threads.
6446 Access to the large state is not always serializable because
6447 the additional locking could be a performance killer, and
6448 md should be large enough anyway.
6451 *) New file apps/app_rand.c with commonly needed functionality
6452 for handling the random seed file.
6454 Use the random seed file in some applications that previously did not:
6456 dsaparam -genkey (which also ignored its '-rand' option),
6459 x509 (when signing).
6460 Except on systems with /dev/urandom, it is crucial to have a random
6461 seed file at least for key creation, DSA signing, and for DH exchanges;
6462 for RSA signatures we could do without one.
6464 gendh and gendsa (unlike genrsa) used to read only the first byte
6465 of each file listed in the '-rand' option. The function as previously
6466 found in genrsa is now in app_rand.c and is used by all programs
6467 that support '-rand'.
6470 *) In RAND_write_file, use mode 0600 for creating files;
6471 don't just chmod when it may be too late.
6474 *) Report an error from X509_STORE_load_locations
6475 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6478 *) New function ASN1_mbstring_copy() this copies a string in either
6479 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6480 into an ASN1_STRING type. A mask of permissible types is passed
6481 and it chooses the "minimal" type to use or an error if not type
6485 *) Add function equivalents to the various macros in asn1.h. The old
6486 macros are retained with an M_ prefix. Code inside the library can
6487 use the M_ macros. External code (including the openssl utility)
6488 should *NOT* in order to be "shared library friendly".
6491 *) Add various functions that can check a certificate's extensions
6492 to see if it usable for various purposes such as SSL client,
6493 server or S/MIME and CAs of these types. This is currently
6494 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6495 verification. Also added a -purpose flag to x509 utility to
6496 print out all the purposes.
6499 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6503 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6504 for, obtain and decode and extension and obtain its critical flag.
6505 This allows all the necessary extension code to be handled in a
6506 single function call.
6509 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6510 platforms. See crypto/rc4/rc4_enc.c for further details.
6513 *) New -noout option to asn1parse. This causes no output to be produced
6514 its main use is when combined with -strparse and -out to extract data
6515 from a file (which may not be in ASN.1 format).
6518 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6519 when producing the local key id.
6520 [Richard Levitte <levitte@stacken.kth.se>]
6522 *) New option -dhparam in s_server. This allows a DH parameter file to be
6523 stated explicitly. If it is not stated then it tries the first server
6524 certificate file. The previous behaviour hard coded the filename
6528 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6529 a public key to be input or output. For example:
6530 openssl rsa -in key.pem -pubout -out pubkey.pem
6531 Also added necessary DSA public key functions to handle this.
6534 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6535 in the message. This was handled by allowing
6536 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6537 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6539 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6540 to the end of the strings whereas this didn't. This would cause problems
6541 if strings read with d2i_ASN1_bytes() were later modified.
6542 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6544 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6545 data and it contains EOF it will end up returning an error. This is
6546 caused by input 46 bytes long. The cause is due to the way base64
6547 BIOs find the start of base64 encoded data. They do this by trying a
6548 trial decode on each line until they find one that works. When they
6549 do a flag is set and it starts again knowing it can pass all the
6550 data directly through the decoder. Unfortunately it doesn't reset
6551 the context it uses. This means that if EOF is reached an attempt
6552 is made to pass two EOFs through the context and this causes the
6553 resulting error. This can also cause other problems as well. As is
6554 usual with these problems it takes *ages* to find and the fix is
6555 trivial: move one line.
6556 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6558 *) Ugly workaround to get s_client and s_server working under Windows. The
6559 old code wouldn't work because it needed to select() on sockets and the
6560 tty (for keypresses and to see if data could be written). Win32 only
6561 supports select() on sockets so we select() with a 1s timeout on the
6562 sockets and then see if any characters are waiting to be read, if none
6563 are present then we retry, we also assume we can always write data to
6564 the tty. This isn't nice because the code then blocks until we've
6565 received a complete line of data and it is effectively polling the
6566 keyboard at 1s intervals: however it's quite a bit better than not
6567 working at all :-) A dedicated Windows application might handle this
6568 with an event loop for example.
6571 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6572 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6573 will be called when RSA_sign() and RSA_verify() are used. This is useful
6574 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6575 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6576 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6577 This necessitated the support of an extra signature type NID_md5_sha1
6578 for SSL signatures and modifications to the SSL library to use it instead
6579 of calling RSA_public_decrypt() and RSA_private_encrypt().
6582 *) Add new -verify -CAfile and -CApath options to the crl program, these
6583 will lookup a CRL issuers certificate and verify the signature in a
6584 similar way to the verify program. Tidy up the crl program so it
6585 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6586 less strict. It will now permit CRL extensions even if it is not
6587 a V2 CRL: this will allow it to tolerate some broken CRLs.
6590 *) Initialize all non-automatic variables each time one of the openssl
6591 sub-programs is started (this is necessary as they may be started
6592 multiple times from the "OpenSSL>" prompt).
6593 [Lennart Bang, Bodo Moeller]
6595 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6596 removing all other RSA functionality (this is what NO_RSA does). This
6597 is so (for example) those in the US can disable those operations covered
6598 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6602 *) Non-copying interface to BIO pairs.
6603 (still largely untested)
6606 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6607 ASCII string. This was handled independently in various places before.
6610 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6611 UTF8 strings a character at a time.
6614 *) Use client_version from client hello to select the protocol
6615 (s23_srvr.c) and for RSA client key exchange verification
6616 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6619 *) Add various utility functions to handle SPKACs, these were previously
6620 handled by poking round in the structure internals. Added new function
6621 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6622 print, verify and generate SPKACs. Based on an original idea from
6623 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6626 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6629 *) Allow the config file extension section to be overwritten on the
6630 command line. Based on an original idea from Massimiliano Pala
6631 <madwolf@comune.modena.it>. The new option is called -extensions
6632 and can be applied to ca, req and x509. Also -reqexts to override
6633 the request extensions in req and -crlexts to override the crl extensions
6637 *) Add new feature to the SPKAC handling in ca. Now you can include
6638 the same field multiple times by preceding it by "XXXX." for example:
6641 this is the same syntax as used in the req config file.
6644 *) Allow certificate extensions to be added to certificate requests. These
6645 are specified in a 'req_extensions' option of the req section of the
6646 config file. They can be printed out with the -text option to req but
6647 are otherwise ignored at present.
6650 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6651 data read consists of only the final block it would not decrypted because
6652 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6653 A misplaced 'break' also meant the decrypted final block might not be
6654 copied until the next read.
6657 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6658 a few extra parameters to the DH structure: these will be useful if
6659 for example we want the value of 'q' or implement X9.42 DH.
6662 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6663 provides hooks that allow the default DSA functions or functions on a
6664 "per key" basis to be replaced. This allows hardware acceleration and
6665 hardware key storage to be handled without major modification to the
6666 library. Also added low level modexp hooks and CRYPTO_EX structure and
6667 associated functions.
6670 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6671 as "read only": it can't be written to and the buffer it points to will
6672 not be freed. Reading from a read only BIO is much more efficient than
6673 a normal memory BIO. This was added because there are several times when
6674 an area of memory needs to be read from a BIO. The previous method was
6675 to create a memory BIO and write the data to it, this results in two
6676 copies of the data and an O(n^2) reading algorithm. There is a new
6677 function BIO_new_mem_buf() which creates a read only memory BIO from
6678 an area of memory. Also modified the PKCS#7 routines to use read only
6682 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6683 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6684 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6685 but a retry condition occured while trying to read the rest.
6688 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6689 NID_pkcs7_encrypted by default: this was wrong since this should almost
6690 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6691 the encrypted data type: this is a more sensible place to put it and it
6692 allows the PKCS#12 code to be tidied up that duplicated this
6696 *) Changed obj_dat.pl script so it takes its input and output files on
6697 the command line. This should avoid shell escape redirection problems
6701 *) Initial support for certificate extension requests, these are included
6702 in things like Xenroll certificate requests. Included functions to allow
6703 extensions to be obtained and added.
6706 *) -crlf option to s_client and s_server for sending newlines as
6707 CRLF (as required by many protocols).
6710 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6712 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6713 [Ralf S. Engelschall]
6715 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6716 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6718 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6722 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6723 DH parameters/keys (q is lost during that conversion, but the resulting
6724 DH parameters contain its length).
6726 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6727 much faster than DH_generate_parameters (which creates parameters
6728 where p = 2*q + 1), and also the smaller q makes DH computations
6729 much more efficient (160-bit exponentiation instead of 1024-bit
6730 exponentiation); so this provides a convenient way to support DHE
6731 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6732 utter importance to use
6733 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6735 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6736 when such DH parameters are used, because otherwise small subgroup
6737 attacks may become possible!
6740 *) Avoid memory leak in i2d_DHparams.
6743 *) Allow the -k option to be used more than once in the enc program:
6744 this allows the same encrypted message to be read by multiple recipients.
6747 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6748 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6749 it will always use the numerical form of the OID, even if it has a short
6753 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6754 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6755 otherwise bn_mod_exp was called. In the case of hardware keys for example
6756 no private key components need be present and it might store extra data
6757 in the RSA structure, which cannot be accessed from bn_mod_exp.
6758 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6759 private key operations.
6762 *) Added support for SPARC Linux.
6765 *) pem_password_cb function type incompatibly changed from
6766 typedef int pem_password_cb(char *buf, int size, int rwflag);
6768 ....(char *buf, int size, int rwflag, void *userdata);
6769 so that applications can pass data to their callbacks:
6770 The PEM[_ASN1]_{read,write}... functions and macros now take an
6771 additional void * argument, which is just handed through whenever
6772 the password callback is called.
6773 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6775 New function SSL_CTX_set_default_passwd_cb_userdata.
6777 Compatibility note: As many C implementations push function arguments
6778 onto the stack in reverse order, the new library version is likely to
6779 interoperate with programs that have been compiled with the old
6780 pem_password_cb definition (PEM_whatever takes some data that
6781 happens to be on the stack as its last argument, and the callback
6782 just ignores this garbage); but there is no guarantee whatsoever that
6785 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6786 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6787 problems not only on Windows, but also on some Unix platforms.
6788 To avoid problematic command lines, these definitions are now in an
6789 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6790 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6793 *) MIPS III/IV assembler module is reimplemented.
6796 *) More DES library cleanups: remove references to srand/rand and
6797 delete an unused file.
6800 *) Add support for the the free Netwide assembler (NASM) under Win32,
6801 since not many people have MASM (ml) and it can be hard to obtain.
6802 This is currently experimental but it seems to work OK and pass all
6803 the tests. Check out INSTALL.W32 for info.
6806 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6807 without temporary keys kept an extra copy of the server key,
6808 and connections with temporary keys did not free everything in case
6812 *) New function RSA_check_key and new openssl rsa option -check
6813 for verifying the consistency of RSA keys.
6814 [Ulf Moeller, Bodo Moeller]
6816 *) Various changes to make Win32 compile work:
6817 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6818 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6819 comparison" warnings.
6820 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6823 *) Add a debugging option to PKCS#5 v2 key generation function: when
6824 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6825 derived keys are printed to stderr.
6828 *) Copy the flags in ASN1_STRING_dup().
6829 [Roman E. Pavlov <pre@mo.msk.ru>]
6831 *) The x509 application mishandled signing requests containing DSA
6832 keys when the signing key was also DSA and the parameters didn't match.
6834 It was supposed to omit the parameters when they matched the signing key:
6835 the verifying software was then supposed to automatically use the CA's
6836 parameters if they were absent from the end user certificate.
6838 Omitting parameters is no longer recommended. The test was also
6839 the wrong way round! This was probably due to unusual behaviour in
6840 EVP_cmp_parameters() which returns 1 if the parameters match.
6841 This meant that parameters were omitted when they *didn't* match and
6842 the certificate was useless. Certificates signed with 'ca' didn't have
6844 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6846 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6847 The interface is as follows:
6848 Applications can use
6849 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6850 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6851 "off" is now the default.
6852 The library internally uses
6853 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6854 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6855 to disable memory-checking temporarily.
6857 Some inconsistent states that previously were possible (and were
6858 even the default) are now avoided.
6860 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6861 with each memory chunk allocated; this is occasionally more helpful
6862 than just having a counter.
6864 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6866 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6870 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6871 which largely parallels "options", but is for changing API behaviour,
6872 whereas "options" are about protocol behaviour.
6873 Initial "mode" flags are:
6875 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6876 a single record has been written.
6877 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6878 retries use the same buffer location.
6879 (But all of the contents must be
6883 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6886 *) Fix problems with no-hmac etc.
6887 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6889 *) New functions RSA_get_default_method(), RSA_set_method() and
6890 RSA_get_method(). These allows replacement of RSA_METHODs without having
6891 to mess around with the internals of an RSA structure.
6894 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6895 Also really enable memory leak checks in openssl.c and in some
6897 [Chad C. Mulligan, Bodo Moeller]
6899 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6900 up the length of negative integers. This has now been simplified to just
6901 store the length when it is first determined and use it later, rather
6902 than trying to keep track of where data is copied and updating it to
6904 [Steve Henson, reported by Brien Wheeler
6905 <bwheeler@authentica-security.com>]
6907 *) Add a new function PKCS7_signatureVerify. This allows the verification
6908 of a PKCS#7 signature but with the signing certificate passed to the
6909 function itself. This contrasts with PKCS7_dataVerify which assumes the
6910 certificate is present in the PKCS#7 structure. This isn't always the
6911 case: certificates can be omitted from a PKCS#7 structure and be
6912 distributed by "out of band" means (such as a certificate database).
6915 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6916 function prototypes in pem.h, also change util/mkdef.pl to add the
6917 necessary function names.
6920 *) mk1mf.pl (used by Windows builds) did not properly read the
6921 options set by Configure in the top level Makefile, and Configure
6922 was not even able to write more than one option correctly.
6923 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6926 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6927 file to be loaded from a BIO or FILE pointer. The BIO version will
6928 for example allow memory BIOs to contain config info.
6931 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6932 Whoever hopes to achieve shared-library compatibility across versions
6933 must use this, not the compile-time macro.
6934 (Exercise 0.9.4: Which is the minimum library version required by
6936 Note: All this applies only to multi-threaded programs, others don't
6940 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6941 through a BIO pair triggered the default case, i.e.
6942 SSLerr(...,SSL_R_UNKNOWN_STATE).
6945 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6946 can use the SSL library even if none of the specific BIOs is
6950 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6951 for the encoded length.
6952 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6954 *) Add initial documentation of the X509V3 functions.
6957 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6958 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6959 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6960 secure PKCS#8 private key format with a high iteration count.
6963 *) Fix determination of Perl interpreter: A perl or perl5
6964 _directory_ in $PATH was also accepted as the interpreter.
6965 [Ralf S. Engelschall]
6967 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6968 wrong with it but it was very old and did things like calling
6969 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6973 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6974 to use the new extension code.
6977 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6978 with macros. This should make it easier to change their form, add extra
6979 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6983 *) Add to configuration table a new entry that can specify an alternative
6984 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6985 according to Mark Crispin <MRC@Panda.COM>.
6989 *) DES CBC did not update the IV. Weird.
6992 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6993 Changing the behaviour of the former might break existing programs --
6994 where IV updating is needed, des_ncbc_encrypt can be used.
6997 *) When bntest is run from "make test" it drives bc to check its
6998 calculations, as well as internally checking them. If an internal check
6999 fails, it needs to cause bc to give a non-zero result or make test carries
7000 on without noticing the failure. Fixed.
7003 *) DES library cleanups.
7006 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7007 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7008 ciphers. NOTE: although the key derivation function has been verified
7009 against some published test vectors it has not been extensively tested
7010 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7014 *) Instead of "mkdir -p", which is not fully portable, use new
7015 Perl script "util/mkdir-p.pl".
7018 *) Rewrite the way password based encryption (PBE) is handled. It used to
7019 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7020 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7021 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7022 the 'parameter' field of the AlgorithmIdentifier is passed to the
7023 underlying key generation function so it must do its own ASN1 parsing.
7024 This has also changed the EVP_PBE_CipherInit() function which now has a
7025 'parameter' argument instead of literal salt and iteration count values
7026 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7029 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7030 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7031 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7032 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7033 value was just used as a "magic string" and not used directly its
7034 value doesn't matter.
7037 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7041 *) "linux-sparc64" configuration (ultrapenguin).
7042 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7043 "linux-sparc" configuration.
7044 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7046 *) config now generates no-xxx options for missing ciphers.
7049 *) Support the EBCDIC character set (work in progress).
7050 File ebcdic.c not yet included because it has a different license.
7051 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7053 *) Support BS2000/OSD-POSIX.
7054 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7056 *) Make callbacks for key generation use void * instead of char *.
7059 *) Make S/MIME samples compile (not yet tested).
7062 *) Additional typesafe stacks.
7065 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7069 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7071 *) New configuration variant "sco5-gcc".
7073 *) Updated some demos.
7074 [Sean O Riordain, Wade Scholine]
7076 *) Add missing BIO_free at exit of pkcs12 application.
7079 *) Fix memory leak in conf.c.
7082 *) Updates for Win32 to assembler version of MD5.
7085 *) Set #! path to perl in apps/der_chop to where we found it
7086 instead of using a fixed path.
7089 *) SHA library changes for irix64-mips4-cc.
7092 *) Improvements for VMS support.
7096 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7098 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7099 This also avoids the problems with SC4.2 and unpatched SC5.
7100 [Andy Polyakov <appro@fy.chalmers.se>]
7102 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7103 These are required because of the typesafe stack would otherwise break
7104 existing code. If old code used a structure member which used to be STACK
7105 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7106 sk_num or sk_value it would produce an error because the num, data members
7107 are not present in STACK_OF. Now it just produces a warning. sk_set
7108 replaces the old method of assigning a value to sk_value
7109 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7110 that does this will no longer work (and should use sk_set instead) but
7111 this could be regarded as a "questionable" behaviour anyway.
7114 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7115 correctly handle encrypted S/MIME data.
7118 *) Change type of various DES function arguments from des_cblock
7119 (which means, in function argument declarations, pointer to char)
7120 to des_cblock * (meaning pointer to array with 8 char elements),
7121 which allows the compiler to do more typechecking; it was like
7122 that back in SSLeay, but with lots of ugly casts.
7124 Introduce new type const_des_cblock.
7127 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7128 problems: find RecipientInfo structure that matches recipient certificate
7129 and initialise the ASN1 structures properly based on passed cipher.
7132 *) Belatedly make the BN tests actually check the results.
7135 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7136 to and from BNs: it was completely broken. New compilation option
7137 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7138 key elements as negative integers.
7141 *) Reorganize and speed up MD5.
7142 [Andy Polyakov <appro@fy.chalmers.se>]
7145 [Richard Levitte <richard@levitte.org>]
7147 *) New option -out to asn1parse to allow the parsed structure to be
7148 output to a file. This is most useful when combined with the -strparse
7149 option to examine the output of things like OCTET STRINGS.
7152 *) Make SSL library a little more fool-proof by not requiring any longer
7153 that SSL_set_{accept,connect}_state be called before
7154 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7155 in many applications because usually everything *appeared* to work as
7156 intended anyway -- now it really works as intended).
7159 *) Move openssl.cnf out of lib/.
7162 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7163 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7164 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7165 [Ralf S. Engelschall]
7167 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7168 handle PKCS#7 enveloped data properly.
7169 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7171 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7172 copying pointers. The cert_st handling is changed by this in
7173 various ways (and thus what used to be known as ctx->default_cert
7174 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7175 any longer when s->cert does not give us what we need).
7176 ssl_cert_instantiate becomes obsolete by this change.
7177 As soon as we've got the new code right (possibly it already is?),
7178 we have solved a couple of bugs of the earlier code where s->cert
7179 was used as if it could not have been shared with other SSL structures.
7181 Note that using the SSL API in certain dirty ways now will result
7182 in different behaviour than observed with earlier library versions:
7183 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7184 does not influence s as it used to.
7186 In order to clean up things more thoroughly, inside SSL_SESSION
7187 we don't use CERT any longer, but a new structure SESS_CERT
7188 that holds per-session data (if available); currently, this is
7189 the peer's certificate chain and, for clients, the server's certificate
7190 and temporary key. CERT holds only those values that can have
7191 meaningful defaults in an SSL_CTX.
7194 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7195 from the internal representation. Various PKCS#7 fixes: remove some
7196 evil casts and set the enc_dig_alg field properly based on the signing
7200 *) Allow PKCS#12 password to be set from the command line or the
7201 environment. Let 'ca' get its config file name from the environment
7202 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7206 *) Allow certificate policies extension to use an IA5STRING for the
7207 organization field. This is contrary to the PKIX definition but
7208 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7212 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7213 without disallowing inline assembler and the like for non-pedantic builds.
7216 *) Support Borland C++ builder.
7217 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7222 *) SHA-1 cleanups and performance enhancements.
7223 [Andy Polyakov <appro@fy.chalmers.se>]
7225 *) Sparc v8plus assembler for the bignum library.
7226 [Andy Polyakov <appro@fy.chalmers.se>]
7228 *) Accept any -xxx and +xxx compiler options in Configure.
7231 *) Update HPUX configuration.
7234 *) Add missing sk_<type>_unshift() function to safestack.h
7235 [Ralf S. Engelschall]
7237 *) New function SSL_CTX_use_certificate_chain_file that sets the
7238 "extra_cert"s in addition to the certificate. (This makes sense
7239 only for "PEM" format files, as chains as a whole are not
7243 *) Support verify_depth from the SSL API.
7244 x509_vfy.c had what can be considered an off-by-one-error:
7245 Its depth (which was not part of the external interface)
7246 was actually counting the number of certificates in a chain;
7247 now it really counts the depth.
7250 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7251 instead of X509err, which often resulted in confusing error
7252 messages since the error codes are not globally unique
7253 (e.g. an alleged error in ssl3_accept when a certificate
7254 didn't match the private key).
7256 *) New function SSL_CTX_set_session_id_context that allows to set a default
7257 value (so that you don't need SSL_set_session_id_context for each
7258 connection using the SSL_CTX).
7261 *) OAEP decoding bug fix.
7264 *) Support INSTALL_PREFIX for package builders, as proposed by
7268 *) New Configure options "threads" and "no-threads". For systems
7269 where the proper compiler options are known (currently Solaris
7270 and Linux), "threads" is the default.
7273 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7276 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7277 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7278 such as /usr/local/bin.
7281 *) "make linux-shared" to build shared libraries.
7282 [Niels Poppe <niels@netbox.org>]
7284 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7287 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7288 extension adding in x509 utility.
7291 *) Remove NOPROTO sections and error code comments.
7294 *) Partial rewrite of the DEF file generator to now parse the ANSI
7298 *) New Configure options --prefix=DIR and --openssldir=DIR.
7301 *) Complete rewrite of the error code script(s). It is all now handled
7302 by one script at the top level which handles error code gathering,
7303 header rewriting and C source file generation. It should be much better
7304 than the old method: it now uses a modified version of Ulf's parser to
7305 read the ANSI prototypes in all header files (thus the old K&R definitions
7306 aren't needed for error creation any more) and do a better job of
7307 translating function codes into names. The old 'ASN1 error code imbedded
7308 in a comment' is no longer necessary and it doesn't use .err files which
7309 have now been deleted. Also the error code call doesn't have to appear all
7310 on one line (which resulted in some large lines...).
7313 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7316 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7317 0 (which usually indicates a closed connection), but continue reading.
7320 *) Fix some race conditions.
7323 *) Add support for CRL distribution points extension. Add Certificate
7324 Policies and CRL distribution points documentation.
7327 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7330 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7331 8 of keying material. Merlin has also confirmed interop with this fix
7332 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7333 [Merlin Hughes <merlin@baltimore.ie>]
7335 *) Fix lots of warnings.
7336 [Richard Levitte <levitte@stacken.kth.se>]
7338 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7339 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7340 [Richard Levitte <levitte@stacken.kth.se>]
7342 *) Fix problems with sizeof(long) == 8.
7343 [Andy Polyakov <appro@fy.chalmers.se>]
7345 *) Change functions to ANSI C.
7348 *) Fix typos in error codes.
7349 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7351 *) Remove defunct assembler files from Configure.
7354 *) SPARC v8 assembler BIGNUM implementation.
7355 [Andy Polyakov <appro@fy.chalmers.se>]
7357 *) Support for Certificate Policies extension: both print and set.
7358 Various additions to support the r2i method this uses.
7361 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7362 return a const string when you are expecting an allocated buffer.
7365 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7366 types DirectoryString and DisplayText.
7369 *) Add code to allow r2i extensions to access the configuration database,
7370 add an LHASH database driver and add several ctx helper functions.
7373 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7374 fail when they extended the size of a BIGNUM.
7377 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7378 support typesafe stack.
7381 *) Fix typo in SSL_[gs]et_options().
7382 [Nils Frostberg <nils@medcom.se>]
7384 *) Delete various functions and files that belonged to the (now obsolete)
7385 old X509V3 handling code.
7388 *) New Configure option "rsaref".
7391 *) Don't auto-generate pem.h.
7394 *) Introduce type-safe ASN.1 SETs.
7397 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7398 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7400 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7401 that links with OpenSSL (well at least cause lots of warnings), but fear
7402 not: the conversion is trivial, and it eliminates loads of evil casts. A
7403 few STACKed things have been converted already. Feel free to convert more.
7404 In the fullness of time, I'll do away with the STACK type altogether.
7407 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7408 specified in <certfile> by updating the entry in the index.txt file.
7409 This way one no longer has to edit the index.txt file manually for
7410 revoking a certificate. The -revoke option does the gory details now.
7411 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7413 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7414 `-text' option at all and this way the `-noout -text' combination was
7415 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7416 [Ralf S. Engelschall]
7418 *) Make sure a corresponding plain text error message exists for the
7419 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7420 verify callback function determined that a certificate was revoked.
7421 [Ralf S. Engelschall]
7423 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7424 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7425 all available cipers including rc5, which was forgotten until now.
7426 In order to let the testing shell script know which algorithms
7427 are available, a new (up to now undocumented) command
7428 "openssl list-cipher-commands" is used.
7431 *) Bugfix: s_client occasionally would sleep in select() when
7432 it should have checked SSL_pending() first.
7435 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7436 the raw DSA values prior to ASN.1 encoding.
7439 *) Tweaks to Configure
7440 [Niels Poppe <niels@netbox.org>]
7442 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7446 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7449 *) New config option to avoid instructions that are illegal on the 80386.
7450 The default code is faster, but requires at least a 486.
7453 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7454 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7455 same as SSL2_VERSION anyway.
7458 *) New "-showcerts" option for s_client.
7461 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7462 application. Various cleanups and fixes.
7465 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7466 modify error routines to work internally. Add error codes and PBE init
7467 to library startup routines.
7470 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7471 packing functions to asn1 and evp. Changed function names and error
7472 codes along the way.
7475 *) PKCS12 integration: and so it begins... First of several patches to
7476 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7477 objects to objects.h
7480 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7481 and display support for Thawte strong extranet extension.
7484 *) Add LinuxPPC support.
7485 [Jeff Dubrule <igor@pobox.org>]
7487 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7488 bn_div_words in alpha.s.
7489 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7491 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7492 OAEP isn't supported when OpenSSL is built with RSAref.
7493 [Ulf Moeller <ulf@fitug.de>]
7495 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7496 so they no longer are missing under -DNOPROTO.
7497 [Soren S. Jorvang <soren@t.dk>]
7500 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7502 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7503 doesn't work when the session is reused. Coming soon!
7506 *) Fix a security hole, that allows sessions to be reused in the wrong
7507 context thus bypassing client cert protection! All software that uses
7508 client certs and session caches in multiple contexts NEEDS PATCHING to
7509 allow session reuse! A fuller solution is in the works.
7510 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7512 *) Some more source tree cleanups (removed obsolete files
7513 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7514 permission on "config" script to be executable) and a fix for the INSTALL
7516 [Ulf Moeller <ulf@fitug.de>]
7518 *) Remove some legacy and erroneous uses of malloc, free instead of
7520 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7522 *) Make rsa_oaep_test return non-zero on error.
7523 [Ulf Moeller <ulf@fitug.de>]
7525 *) Add support for native Solaris shared libraries. Configure
7526 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7527 if someone would make that last step automatic.
7528 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7530 *) ctx_size was not built with the right compiler during "make links". Fixed.
7533 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7534 except NULL ciphers". This means the default cipher list will no longer
7535 enable NULL ciphers. They need to be specifically enabled e.g. with
7536 the string "DEFAULT:eNULL".
7539 *) Fix to RSA private encryption routines: if p < q then it would
7540 occasionally produce an invalid result. This will only happen with
7541 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7544 *) Be less restrictive and allow also `perl util/perlpath.pl
7545 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7546 because this way one can also use an interpreter named `perl5' (which is
7547 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7548 installed as `perl').
7549 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7551 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7552 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7554 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7555 advapi32.lib to Win32 build and change the pem test comparision
7556 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7557 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7558 and crypto/des/ede_cbcm_enc.c.
7561 *) DES quad checksum was broken on big-endian architectures. Fixed.
7564 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7565 Win32 test batch file so it (might) work again. The Win32 test batch file
7566 is horrible: I feel ill....
7569 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7570 in e_os.h. Audit of header files to check ANSI and non ANSI
7571 sections: 10 functions were absent from non ANSI section and not exported
7572 from Windows DLLs. Fixed up libeay.num for new functions.
7575 *) Make `openssl version' output lines consistent.
7576 [Ralf S. Engelschall]
7578 *) Fix Win32 symbol export lists for BIO functions: Added
7579 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7580 to ms/libeay{16,32}.def.
7581 [Ralf S. Engelschall]
7583 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7584 fine under Unix and passes some trivial tests I've now added. But the
7585 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7586 added to make sure no one expects that this stuff really works in the
7587 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7588 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7590 [Ralf S. Engelschall]
7592 *) Fix the generation of two part addresses in perl.
7593 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7595 *) Add config entry for Linux on MIPS.
7596 [John Tobey <jtobey@channel1.com>]
7598 *) Make links whenever Configure is run, unless we are on Windoze.
7601 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7602 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7606 *) Add a useful kludge to allow package maintainers to specify compiler and
7607 other platforms details on the command line without having to patch the
7608 Configure script everytime: One now can use ``perl Configure
7609 <id>:<details>'', i.e. platform ids are allowed to have details appended
7610 to them (seperated by colons). This is treated as there would be a static
7611 pre-configured entry in Configure's %table under key <id> with value
7612 <details> and ``perl Configure <id>'' is called. So, when you want to
7613 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7614 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7615 now, which overrides the FreeBSD-elf entry on-the-fly.
7616 [Ralf S. Engelschall]
7618 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7621 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7622 on the `perl Configure ...' command line. This way one can compile
7623 OpenSSL libraries with Position Independent Code (PIC) which is needed
7624 for linking it into DSOs.
7625 [Ralf S. Engelschall]
7627 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7631 *) Cleaned up the LICENSE document: The official contact for any license
7632 questions now is the OpenSSL core team under openssl-core@openssl.org.
7633 And add a paragraph about the dual-license situation to make sure people
7634 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7635 to the OpenSSL toolkit.
7636 [Ralf S. Engelschall]
7638 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7639 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7640 Additonally cleaned up the `make links' target: Remove unnecessary
7641 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7642 to speed processing and no longer clutter the display with confusing
7643 stuff. Instead only the actually done links are displayed.
7644 [Ralf S. Engelschall]
7646 *) Permit null encryption ciphersuites, used for authentication only. It used
7647 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7648 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7652 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7653 signed attributes when verifying signatures (this would break them),
7654 the detached data encoding was wrong and public keys obtained using
7655 X509_get_pubkey() weren't freed.
7658 *) Add text documentation for the BUFFER functions. Also added a work around
7659 to a Win95 console bug. This was triggered by the password read stuff: the
7660 last character typed gets carried over to the next fread(). If you were
7661 generating a new cert request using 'req' for example then the last
7662 character of the passphrase would be CR which would then enter the first
7666 *) Added the new `Includes OpenSSL Cryptography Software' button as
7667 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7668 button and can be used by applications based on OpenSSL to show the
7669 relationship to the OpenSSL project.
7670 [Ralf S. Engelschall]
7672 *) Remove confusing variables in function signatures in files
7673 ssl/ssl_lib.c and ssl/ssl.h.
7674 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7676 *) Don't install bss_file.c under PREFIX/include/
7677 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7679 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7680 functions that return function pointers and has support for NT specific
7681 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7682 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7683 unsigned to signed types: this was killing the Win32 compile.
7686 *) Add new certificate file to stack functions,
7687 SSL_add_dir_cert_subjects_to_stack() and
7688 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7689 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7690 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7691 This means that Apache-SSL and similar packages don't have to mess around
7692 to add as many CAs as they want to the preferred list.
7695 *) Experiment with doxygen documentation. Currently only partially applied to
7697 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7698 openssl.doxy as the configuration file.
7701 *) Get rid of remaining C++-style comments which strict C compilers hate.
7702 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7704 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7705 compiled in by default: it has problems with large keys.
7708 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7709 DH private keys and/or callback functions which directly correspond to
7710 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7711 is needed for applications which have to configure certificates on a
7712 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7714 For the RSA certificate situation is makes no difference, but
7715 for the DSA certificate situation this fixes the "no shared cipher"
7716 problem where the OpenSSL cipher selection procedure failed because the
7717 temporary keys were not overtaken from the context and the API provided
7718 no way to reconfigure them.
7719 The new functions now let applications reconfigure the stuff and they
7720 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7721 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7722 non-public-API function ssl_cert_instantiate() is used as a helper
7723 function and also to reduce code redundancy inside ssl_rsa.c.
7724 [Ralf S. Engelschall]
7726 *) Move s_server -dcert and -dkey options out of the undocumented feature
7727 area because they are useful for the DSA situation and should be
7728 recognized by the users.
7729 [Ralf S. Engelschall]
7731 *) Fix the cipher decision scheme for export ciphers: the export bits are
7732 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7733 SSL_EXP_MASK. So, the original variable has to be used instead of the
7734 already masked variable.
7735 [Richard Levitte <levitte@stacken.kth.se>]
7737 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7738 [Richard Levitte <levitte@stacken.kth.se>]
7740 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7741 from `int' to `unsigned int' because it's a length and initialized by
7742 EVP_DigestFinal() which expects an `unsigned int *'.
7743 [Richard Levitte <levitte@stacken.kth.se>]
7745 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7746 script. Instead use the usual Shell->Perl transition trick.
7747 [Ralf S. Engelschall]
7749 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7750 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7751 -noout -modulus' as it's already the case for `openssl rsa -noout
7752 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7753 currently the public key is printed (a decision which was already done by
7754 `openssl dsa -modulus' in the past) which serves a similar purpose.
7755 Additionally the NO_RSA no longer completely removes the whole -modulus
7756 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7758 [Ralf S. Engelschall]
7760 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7761 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7762 [Arne Ansper <arne@ats.cyber.ee>]
7764 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7765 to be added. Now both 'req' and 'ca' can use new objects defined in the
7769 *) Add cool BIO that does syslog (or event log on NT).
7770 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7772 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7773 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7774 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7775 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7778 *) Add preliminary config info for new extension code.
7781 *) Make RSA_NO_PADDING really use no padding.
7782 [Ulf Moeller <ulf@fitug.de>]
7784 *) Generate errors when private/public key check is done.
7787 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7788 for some CRL extensions and new objects added.
7791 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7792 key usage extension and fuller support for authority key id.
7795 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7796 padding method for RSA, which is recommended for new applications in PKCS
7797 #1 v2.0 (RFC 2437, October 1998).
7798 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7799 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7800 against Bleichbacher's attack on RSA.
7801 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7804 *) Updates to the new SSL compression code
7805 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7807 *) Fix so that the version number in the master secret, when passed
7808 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7809 (because the server will not accept higher), that the version number
7810 is 0x03,0x01, not 0x03,0x00
7811 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7813 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7814 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7815 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7818 *) Support for RAW extensions where an arbitrary extension can be
7819 created by including its DER encoding. See apps/openssl.cnf for
7823 *) Make sure latest Perl versions don't interpret some generated C array
7824 code as Perl array code in the crypto/err/err_genc.pl script.
7825 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7827 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7828 not many people have the assembler. Various Win32 compilation fixes and
7829 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7833 *) Modify configure script 'Configure' to automatically create crypto/date.h
7834 file under Win32 and also build pem.h from pem.org. New script
7835 util/mkfiles.pl to create the MINFO file on environments that can't do a
7836 'make files': perl util/mkfiles.pl >MINFO should work.
7839 *) Major rework of DES function declarations, in the pursuit of correctness
7840 and purity. As a result, many evil casts evaporated, and some weirdness,
7841 too. You may find this causes warnings in your code. Zapping your evil
7842 casts will probably fix them. Mostly.
7845 *) Fix for a typo in asn1.h. Bug fix to object creation script
7846 obj_dat.pl. It considered a zero in an object definition to mean
7847 "end of object": none of the objects in objects.h have any zeros
7848 so it wasn't spotted.
7849 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7851 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7852 Masking (CBCM). In the absence of test vectors, the best I have been able
7853 to do is check that the decrypt undoes the encrypt, so far. Send me test
7854 vectors if you have them.
7857 *) Correct calculation of key length for export ciphers (too much space was
7858 allocated for null ciphers). This has not been tested!
7861 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7862 message is now correct (it understands "crypto" and "ssl" on its
7863 command line). There is also now an "update" option. This will update
7864 the util/ssleay.num and util/libeay.num files with any new functions.
7866 perl util/mkdef.pl crypto ssl update
7867 it will update them.
7870 *) Overhauled the Perl interface (perl/*):
7871 - ported BN stuff to OpenSSL's different BN library
7872 - made the perl/ source tree CVS-aware
7873 - renamed the package from SSLeay to OpenSSL (the files still contain
7874 their history because I've copied them in the repository)
7875 - removed obsolete files (the test scripts will be replaced
7876 by better Test::Harness variants in the future)
7877 [Ralf S. Engelschall]
7879 *) First cut for a very conservative source tree cleanup:
7880 1. merge various obsolete readme texts into doc/ssleay.txt
7881 where we collect the old documents and readme texts.
7882 2. remove the first part of files where I'm already sure that we no
7883 longer need them because of three reasons: either they are just temporary
7884 files which were left by Eric or they are preserved original files where
7885 I've verified that the diff is also available in the CVS via "cvs diff
7886 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7887 the crypto/md/ stuff).
7888 [Ralf S. Engelschall]
7890 *) More extension code. Incomplete support for subject and issuer alt
7891 name, issuer and authority key id. Change the i2v function parameters
7892 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7893 what that's for :-) Fix to ASN1 macro which messed up
7894 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7897 *) Preliminary support for ENUMERATED type. This is largely copied from the
7901 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7902 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7904 *) Make sure `make rehash' target really finds the `openssl' program.
7905 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7907 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7908 like to hear about it if this slows down other processors.
7911 *) Add CygWin32 platform information to Configure script.
7912 [Alan Batie <batie@aahz.jf.intel.com>]
7914 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7915 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7917 *) New program nseq to manipulate netscape certificate sequences
7920 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7924 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7925 but the BN code had some problems that would cause failures when
7926 doing certificate verification and some other functions.
7927 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7929 *) Add ASN1 and PEM code to support netscape certificate sequences.
7932 *) Add ASN1 and PEM code to support netscape certificate sequences.
7935 *) Add several PKIX and private extended key usage OIDs.
7938 *) Modify the 'ca' program to handle the new extension code. Modify
7939 openssl.cnf for new extension format, add comments.
7942 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7943 and add a sample to openssl.cnf so req -x509 now adds appropriate
7947 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7948 error code, add initial support to X509_print() and x509 application.
7951 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7952 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7953 stuff is currently isolated and isn't even compiled yet.
7956 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7957 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7958 Removed the versions check from X509 routines when loading extensions:
7959 this allows certain broken certificates that don't set the version
7960 properly to be processed.
7963 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7964 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7965 can still be regenerated with "make depend".
7968 *) Spelling mistake in C version of CAST-128.
7969 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7971 *) Changes to the error generation code. The perl script err-code.pl
7972 now reads in the old error codes and retains the old numbers, only
7973 adding new ones if necessary. It also only changes the .err files if new
7974 codes are added. The makefiles have been modified to only insert errors
7975 when needed (to avoid needlessly modifying header files). This is done
7976 by only inserting errors if the .err file is newer than the auto generated
7977 C file. To rebuild all the error codes from scratch (the old behaviour)
7978 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7979 or delete all the .err files.
7982 *) CAST-128 was incorrectly implemented for short keys. The C version has
7983 been fixed, but is untested. The assembler versions are also fixed, but
7984 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7985 to regenerate it if needed.
7986 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7987 Hagino <itojun@kame.net>]
7989 *) File was opened incorrectly in randfile.c.
7990 [Ulf Möller <ulf@fitug.de>]
7992 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7993 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7994 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7995 al: it's just almost always a UTCTime. Note this patch adds new error
7996 codes so do a "make errors" if there are problems.
7999 *) Correct Linux 1 recognition in config.
8000 [Ulf Möller <ulf@fitug.de>]
8002 *) Remove pointless MD5 hash when using DSA keys in ca.
8003 [Anonymous <nobody@replay.com>]
8005 *) Generate an error if given an empty string as a cert directory. Also
8006 generate an error if handed NULL (previously returned 0 to indicate an
8007 error, but didn't set one).
8008 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8010 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8013 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8014 parameters. This was causing a warning which killed off the Win32 compile.
8017 *) Remove C++ style comments from crypto/bn/bn_local.h.
8018 [Neil Costigan <neil.costigan@celocom.com>]
8020 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8021 based on a text string, looking up short and long names and finally
8022 "dot" format. The "dot" format stuff didn't work. Added new function
8023 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8024 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8025 OID is not part of the table.
8028 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8029 X509_LOOKUP_by_alias().
8032 *) Sort openssl functions by name.
8035 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8036 encryption from sample DSA keys (in case anyone is interested the password
8040 *) Make _all_ *_free functions accept a NULL pointer.
8041 [Frans Heymans <fheymans@isaserver.be>]
8043 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8045 [Anonymous <nobody@replay.com>]
8047 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8048 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8050 *) Don't blow it for numeric -newkey arguments to apps/req.
8051 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8053 *) Temp key "for export" tests were wrong in s3_srvr.c.
8054 [Anonymous <nobody@replay.com>]
8056 *) Add prototype for temp key callback functions
8057 SSL_CTX_set_tmp_{rsa,dh}_callback().
8060 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8061 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8064 *) X509_name_add_entry() freed the wrong thing after an error.
8065 [Arne Ansper <arne@ats.cyber.ee>]
8067 *) rsa_eay.c would attempt to free a NULL context.
8068 [Arne Ansper <arne@ats.cyber.ee>]
8070 *) BIO_s_socket() had a broken should_retry() on Windoze.
8071 [Arne Ansper <arne@ats.cyber.ee>]
8073 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8074 [Arne Ansper <arne@ats.cyber.ee>]
8076 *) Make sure the already existing X509_STORE->depth variable is initialized
8077 in X509_STORE_new(), but document the fact that this variable is still
8078 unused in the certificate verification process.
8079 [Ralf S. Engelschall]
8081 *) Fix the various library and apps files to free up pkeys obtained from
8082 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8085 *) Fix reference counting in X509_PUBKEY_get(). This makes
8086 demos/maurice/example2.c work, amongst others, probably.
8087 [Steve Henson and Ben Laurie]
8089 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8090 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8091 are no longer created. This way we have a single and consistent command
8092 line interface `openssl <command>', similar to `cvs <command>'.
8093 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8095 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8096 BIT STRING wrapper always have zero unused bits.
8099 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8102 *) Make the top-level INSTALL documentation easier to understand.
8105 *) Makefiles updated to exit if an error occurs in a sub-directory
8106 make (including if user presses ^C) [Paul Sutton]
8108 *) Make Montgomery context stuff explicit in RSA data structure.
8111 *) Fix build order of pem and err to allow for generated pem.h.
8114 *) Fix renumbering bug in X509_NAME_delete_entry().
8117 *) Enhanced the err-ins.pl script so it makes the error library number
8118 global and can add a library name. This is needed for external ASN1 and
8119 other error libraries.
8122 *) Fixed sk_insert which never worked properly.
8125 *) Fix ASN1 macros so they can handle indefinite length construted
8126 EXPLICIT tags. Some non standard certificates use these: they can now
8130 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8131 into a single doc/ssleay.txt bundle. This way the information is still
8132 preserved but no longer messes up this directory. Now it's new room for
8133 the new set of documenation files.
8134 [Ralf S. Engelschall]
8136 *) SETs were incorrectly DER encoded. This was a major pain, because they
8137 shared code with SEQUENCEs, which aren't coded the same. This means that
8138 almost everything to do with SETs or SEQUENCEs has either changed name or
8139 number of arguments.
8140 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8142 *) Fix test data to work with the above.
8145 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8146 was already fixed by Eric for 0.9.1 it seems.
8147 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8149 *) Autodetect FreeBSD3.
8152 *) Fix various bugs in Configure. This affects the following platforms:
8156 unixware-2.0-pentium
8160 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8161 before they are needed.
8164 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8168 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8170 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8171 changed SSLeay to OpenSSL in version strings.
8172 [Ralf S. Engelschall]
8174 *) Some fixups to the top-level documents.
8177 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8178 because the symlink to include/ was missing.
8179 [Ralf S. Engelschall]
8181 *) Incorporated the popular no-RSA/DSA-only patches
8182 which allow to compile a RSA-free SSLeay.
8183 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8185 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8186 when "ssleay" is still not found.
8187 [Ralf S. Engelschall]
8189 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8190 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8192 *) Updated the README file.
8193 [Ralf S. Engelschall]
8195 *) Added various .cvsignore files in the CVS repository subdirs
8196 to make a "cvs update" really silent.
8197 [Ralf S. Engelschall]
8199 *) Recompiled the error-definition header files and added
8200 missing symbols to the Win32 linker tables.
8201 [Ralf S. Engelschall]
8203 *) Cleaned up the top-level documents;
8204 o new files: CHANGES and LICENSE
8205 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8206 o merged COPYRIGHT into LICENSE
8207 o removed obsolete TODO file
8208 o renamed MICROSOFT to INSTALL.W32
8209 [Ralf S. Engelschall]
8211 *) Removed dummy files from the 0.9.1b source tree:
8212 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8213 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8214 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8215 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8216 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8217 [Ralf S. Engelschall]
8219 *) Added various platform portability fixes.
8222 *) The Genesis of the OpenSSL rpject:
8223 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8224 Young and Tim J. Hudson created while they were working for C2Net until
8226 [The OpenSSL Project]
8229 Changes between 0.9.0b and 0.9.1b [not released]
8231 *) Updated a few CA certificates under certs/
8234 *) Changed some BIGNUM api stuff.
8237 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8238 DGUX x86, Linux Alpha, etc.
8241 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8242 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8246 *) Add -strparse option to asn1pars program which parses nested
8248 [Dr Stephen Henson <shenson@bigfoot.com>]
8250 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8253 *) DSA fix for "ca" program.
8256 *) Added "-genkey" option to "dsaparam" program.
8259 *) Added RIPE MD160 (rmd160) message digest.
8262 *) Added -a (all) option to "ssleay version" command.
8265 *) Added PLATFORM define which is the id given to Configure.
8268 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8271 *) Extended the ASN.1 parser routines.
8274 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8277 *) Added a BN_CTX to the BN library.
8280 *) Fixed the weak key values in DES library
8283 *) Changed API in EVP library for cipher aliases.
8286 *) Added support for RC2/64bit cipher.
8289 *) Converted the lhash library to the crypto/mem.c functions.
8292 *) Added more recognized ASN.1 object ids.
8295 *) Added more RSA padding checks for SSL/TLS.
8298 *) Added BIO proxy/filter functionality.
8301 *) Added extra_certs to SSL_CTX which can be used
8302 send extra CA certificates to the client in the CA cert chain sending
8303 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8306 *) Now Fortezza is denied in the authentication phase because
8307 this is key exchange mechanism is not supported by SSLeay at all.
8310 *) Additional PKCS1 checks.
8313 *) Support the string "TLSv1" for all TLS v1 ciphers.
8316 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8317 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8320 *) Fixed a few memory leaks.
8323 *) Fixed various code and comment typos.
8326 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8327 bytes sent in the client random.
8328 [Edward Bishop <ebishop@spyglass.com>]