5 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
7 *) Properly check EVP_VerifyFinal() and similar return values
9 [Ben Laurie, Bodo Moeller, Google Security Team]
11 *) Properly check EVP_VerifyFinal() and similar return values
13 [Ben Laurie, Bodo Moeller, Google Security Team]
15 *) Enable TLS extensions by default.
18 *) Allow the CHIL engine to be loaded, whether the application is
19 multithreaded or not. (This does not release the developer from the
20 obligation to set up the dynamic locking callbacks.)
21 [Sander Temme <sander@temme.net>]
23 *) Use correct exit code if there is an error in dgst command.
24 [Steve Henson; problem pointed out by Roland Dirlewanger]
26 *) Tweak Configure so that you need to say "experimental-jpake" to enable
27 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
30 *) Add experimental JPAKE support, including demo authentication in
31 s_client and s_server.
34 *) Set the comparison function in v3_addr_canonize().
35 [Rob Austein <sra@hactrn.net>]
37 *) Add support for XMPP STARTTLS in s_client.
38 [Philip Paeps <philip@freebsd.org>]
40 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
41 to ensure that even with this option, only ciphersuites in the
42 server's preference list will be accepted. (Note that the option
43 applies only when resuming a session, so the earlier behavior was
44 just about the algorithm choice for symmetric cryptography.)
47 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
49 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
50 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
53 *) The fix in 0.9.8c that supposedly got rid of unsafe
54 double-checked locking was incomplete for RSA blinding,
55 addressing just one layer of what turns out to have been
56 doubly unsafe triple-checked locking.
58 So now fix this for real by retiring the MONT_HELPER macro
59 in crypto/rsa/rsa_eay.c.
61 [Bodo Moeller; problem pointed out by Marius Schilder]
63 *) Various precautionary measures:
65 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
67 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
68 (NB: This would require knowledge of the secret session ticket key
69 to exploit, in which case you'd be SOL either way.)
71 - Change bn_nist.c so that it will properly handle input BIGNUMs
72 outside the expected range.
74 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
77 [Neel Mehta, Bodo Moeller]
79 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
80 the load fails. Useful for distros.
81 [Ben Laurie and the FreeBSD team]
83 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
86 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
89 *) Expand ENGINE to support engine supplied SSL client certificate functions.
91 This work was sponsored by Logica.
94 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
95 keystores. Support for SSL/TLS client authentication too.
96 Not compiled unless enable-capieng specified to Configure.
98 This work was sponsored by Logica.
101 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
102 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
103 attribute creation routines such as certifcate requests and PKCS#12
107 Changes between 0.9.8g and 0.9.8h [28 May 2008]
109 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
110 handshake which could lead to a cilent crash as found using the
111 Codenomicon TLS test suite (CVE-2008-1672)
112 [Steve Henson, Mark Cox]
114 *) Fix double free in TLS server name extensions which could lead to
115 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
118 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
120 Clear the error queue to ensure that error entries left from
121 older function calls do not interfere with the correct operation.
122 [Lutz Jaenicke, Erik de Castro Lopo]
124 *) Remove root CA certificates of commercial CAs:
126 The OpenSSL project does not recommend any specific CA and does not
127 have any policy with respect to including or excluding any CA.
128 Therefore it does not make any sense to ship an arbitrary selection
129 of root CA certificates with the OpenSSL software.
132 *) RSA OAEP patches to fix two separate invalid memory reads.
133 The first one involves inputs when 'lzero' is greater than
134 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
135 before the beginning of from). The second one involves inputs where
136 the 'db' section contains nothing but zeroes (there is a one-byte
137 invalid read after the end of 'db').
138 [Ivan Nestlerode <inestlerode@us.ibm.com>]
140 *) Partial backport from 0.9.9-dev:
142 Introduce bn_mul_mont (dedicated Montgomery multiplication
143 procedure) as a candidate for BIGNUM assembler implementation.
144 While 0.9.9-dev uses assembler for various architectures, only
145 x86_64 is available by default here in the 0.9.8 branch, and
146 32-bit x86 is available through a compile-time setting.
148 To try the 32-bit x86 assembler implementation, use Configure
149 option "enable-montasm" (which exists only for this backport).
151 As "enable-montasm" for 32-bit x86 disclaims code stability
152 anyway, in this constellation we activate additional code
153 backported from 0.9.9-dev for further performance improvements,
154 namely BN_from_montgomery_word. (To enable this otherwise,
155 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
157 [Andy Polyakov (backport partially by Bodo Moeller)]
159 *) Add TLS session ticket callback. This allows an application to set
160 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
161 values. This is useful for key rollover for example where several key
162 sets may exist with different names.
165 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
166 This was broken until now in 0.9.8 releases, such that the only way
167 a registered ENGINE could be used (assuming it initialises
168 successfully on the host) was to explicitly set it as the default
169 for the relevant algorithms. This is in contradiction with 0.9.7
170 behaviour and the documentation. With this fix, when an ENGINE is
171 registered into a given algorithm's table of implementations, the
172 'uptodate' flag is reset so that auto-discovery will be used next
173 time a new context for that algorithm attempts to select an
175 [Ian Lister (tweaked by Geoff Thorpe)]
177 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
178 implemention in the following ways:
180 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
183 Lack of BER streaming support means one pass streaming processing is
184 only supported if data is detached: setting the streaming flag is
185 ignored for embedded content.
187 CMS support is disabled by default and must be explicitly enabled
188 with the enable-cms configuration option.
191 *) Update the GMP engine glue to do direct copies between BIGNUM and
192 mpz_t when openssl and GMP use the same limb size. Otherwise the
193 existing "conversion via a text string export" trick is still used.
194 [Paul Sheer <paulsheer@gmail.com>]
196 *) Zlib compression BIO. This is a filter BIO which compressed and
197 uncompresses any data passed through it.
200 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
201 RFC3394 compatible AES key wrapping.
204 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
205 sets string data without copying. X509_ALGOR_set0() and
206 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
207 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
208 from an X509_ATTRIBUTE structure optionally checking it occurs only
209 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
213 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
214 to get the expected BN_FLG_CONSTTIME behavior.
215 [Bodo Moeller (Google)]
219 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
220 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
221 - added some more tests to do_tests.pl
222 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
223 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
224 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
225 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
226 - various changes to netware.pl to enable gcc-cross builds on Win32
228 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
229 - various changes to fix missing prototype warnings
230 - fixed x86nasm.pl to create correct asm files for NASM COFF output
231 - added AES, WHIRLPOOL and CPUID assembler code to build files
232 - added missing AES assembler make rules to mk1mf.pl
233 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
234 [Guenter Knauf <eflash@gmx.net>]
236 *) Implement certificate status request TLS extension defined in RFC3546.
237 A client can set the appropriate parameters and receive the encoded
238 OCSP response via a callback. A server can query the supplied parameters
239 and set the encoded OCSP response in the callback. Add simplified examples
240 to s_client and s_server.
243 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
246 + Binary incompatibility of ssl_ctx_st structure
247 + DTLS interoperation with non-compliant servers
248 + Don't call get_session_cb() without proposed session
249 + Fix ia64 assembler code
250 [Andy Polyakov, Steve Henson]
252 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
254 *) DTLS Handshake overhaul. There were longstanding issues with
255 OpenSSL DTLS implementation, which were making it impossible for
256 RFC 4347 compliant client to communicate with OpenSSL server.
257 Unfortunately just fixing these incompatibilities would "cut off"
258 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
259 server keeps tolerating non RFC compliant syntax. The opposite is
260 not true, 0.9.8f client can not communicate with earlier server.
261 This update even addresses CVE-2007-4995.
264 *) Changes to avoid need for function casts in OpenSSL: some compilers
265 (gcc 4.2 and later) reject their use.
266 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
269 *) Add RFC4507 support to OpenSSL. This includes the corrections in
270 RFC4507bis. The encrypted ticket format is an encrypted encoded
271 SSL_SESSION structure, that way new session features are automatically
274 If a client application caches session in an SSL_SESSION structure
275 support is transparent because tickets are now stored in the encoded
278 The SSL_CTX structure automatically generates keys for ticket
279 protection in servers so again support should be possible
280 with no application modification.
282 If a client or server wishes to disable RFC4507 support then the option
283 SSL_OP_NO_TICKET can be set.
285 Add a TLS extension debugging callback to allow the contents of any client
286 or server extensions to be examined.
288 This work was sponsored by Google.
291 *) Add initial support for TLS extensions, specifically for the server_name
292 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
293 have new members for a host name. The SSL data structure has an
294 additional member SSL_CTX *initial_ctx so that new sessions can be
295 stored in that context to allow for session resumption, even after the
296 SSL has been switched to a new SSL_CTX in reaction to a client's
297 server_name extension.
299 New functions (subject to change):
302 SSL_get_servername_type()
305 New CTRL codes and macros (subject to change):
307 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
308 - SSL_CTX_set_tlsext_servername_callback()
309 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
310 - SSL_CTX_set_tlsext_servername_arg()
311 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
313 openssl s_client has a new '-servername ...' option.
315 openssl s_server has new options '-servername_host ...', '-cert2 ...',
316 '-key2 ...', '-servername_fatal' (subject to change). This allows
317 testing the HostName extension for a specific single host name ('-cert'
318 and '-key' remain fallbacks for handshakes without HostName
319 negotiation). If the unrecogninzed_name alert has to be sent, this by
320 default is a warning; it becomes fatal with the '-servername_fatal'
323 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
325 *) Add AES and SSE2 assembly language support to VC++ build.
328 *) Mitigate attack on final subtraction in Montgomery reduction.
331 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
332 (which previously caused an internal error).
335 *) Squeeze another 10% out of IGE mode when in != out.
338 *) AES IGE mode speedup.
339 [Dean Gaudet (Google)]
341 *) Add the Korean symmetric 128-bit cipher SEED (see
342 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
343 add SEED ciphersuites from RFC 4162:
345 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
346 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
347 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
348 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
350 To minimize changes between patchlevels in the OpenSSL 0.9.8
351 series, SEED remains excluded from compilation unless OpenSSL
352 is configured with 'enable-seed'.
355 *) Mitigate branch prediction attacks, which can be practical if a
356 single processor is shared, allowing a spy process to extract
357 information. For detailed background information, see
358 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
359 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
360 and Necessary Software Countermeasures"). The core of the change
361 are new versions BN_div_no_branch() and
362 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
363 respectively, which are slower, but avoid the security-relevant
364 conditional branches. These are automatically called by BN_div()
365 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
366 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
367 remove a conditional branch.
369 BN_FLG_CONSTTIME is the new name for the previous
370 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
371 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
372 in the exponent causes BN_mod_exp_mont() to use the alternative
373 implementation in BN_mod_exp_mont_consttime().) The old name
374 remains as a deprecated alias.
376 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
377 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
378 constant-time implementations for more than just exponentiation.
379 Here too the old name is kept as a deprecated alias.
381 BN_BLINDING_new() will now use BN_dup() for the modulus so that
382 the BN_BLINDING structure gets an independent copy of the
383 modulus. This means that the previous "BIGNUM *m" argument to
384 BN_BLINDING_new() and to BN_BLINDING_create_param() now
385 essentially becomes "const BIGNUM *m", although we can't actually
386 change this in the header file before 0.9.9. It allows
387 RSA_setup_blinding() to use BN_with_flags() on the modulus to
388 enable BN_FLG_CONSTTIME.
390 [Matthew D Wood (Intel Corp)]
392 *) In the SSL/TLS server implementation, be strict about session ID
393 context matching (which matters if an application uses a single
394 external cache for different purposes). Previously,
395 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
396 set. This did ensure strict client verification, but meant that,
397 with applications using a single external cache for quite
398 different requirements, clients could circumvent ciphersuite
399 restrictions for a given session ID context by starting a session
400 in a different context.
403 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
404 a ciphersuite string such as "DEFAULT:RSA" cannot enable
405 authentication-only ciphersuites.
408 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
409 not complete and could lead to a possible single byte overflow
410 (CVE-2007-5135) [Ben Laurie]
412 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
414 *) Since AES128 and AES256 (and similarly Camellia128 and
415 Camellia256) share a single mask bit in the logic of
416 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
417 kludge to work properly if AES128 is available and AES256 isn't
418 (or if Camellia128 is available and Camellia256 isn't).
421 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
422 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
423 When a point or a seed is encoded in a BIT STRING, we need to
424 prevent the removal of trailing zero bits to get the proper DER
425 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
426 of a NamedBitList, for which trailing 0 bits need to be removed.)
429 *) Have SSL/TLS server implementation tolerate "mismatched" record
430 protocol version while receiving ClientHello even if the
431 ClientHello is fragmented. (The server can't insist on the
432 particular protocol version it has chosen before the ServerHello
433 message has informed the client about his choice.)
436 *) Add RFC 3779 support.
437 [Rob Austein for ARIN, Ben Laurie]
439 *) Load error codes if they are not already present instead of using a
440 static variable. This allows them to be cleanly unloaded and reloaded.
441 Improve header file function name parsing.
444 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
445 or CAPABILITY handshake as required by RFCs.
448 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
450 *) Introduce limits to prevent malicious keys being able to
451 cause a denial of service. (CVE-2006-2940)
452 [Steve Henson, Bodo Moeller]
454 *) Fix ASN.1 parsing of certain invalid structures that can result
455 in a denial of service. (CVE-2006-2937) [Steve Henson]
457 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
458 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
460 *) Fix SSL client code which could crash if connecting to a
461 malicious SSLv2 server. (CVE-2006-4343)
462 [Tavis Ormandy and Will Drewry, Google Security Team]
464 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
465 match only those. Before that, "AES256-SHA" would be interpreted
466 as a pattern and match "AES128-SHA" too (since AES128-SHA got
467 the same strength classification in 0.9.7h) as we currently only
468 have a single AES bit in the ciphersuite description bitmap.
469 That change, however, also applied to ciphersuite strings such as
470 "RC4-MD5" that intentionally matched multiple ciphersuites --
471 namely, SSL 2.0 ciphersuites in addition to the more common ones
472 from SSL 3.0/TLS 1.0.
474 So we change the selection algorithm again: Naming an explicit
475 ciphersuite selects this one ciphersuite, and any other similar
476 ciphersuite (same bitmap) from *other* protocol versions.
477 Thus, "RC4-MD5" again will properly select both the SSL 2.0
478 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
480 Since SSL 2.0 does not have any ciphersuites for which the
481 128/256 bit distinction would be relevant, this works for now.
482 The proper fix will be to use different bits for AES128 and
483 AES256, which would have avoided the problems from the beginning;
484 however, bits are scarce, so we can only do this in a new release
485 (not just a patchlevel) when we can change the SSL_CIPHER
486 definition to split the single 'unsigned long mask' bitmap into
487 multiple values to extend the available space.
491 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
493 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
494 (CVE-2006-4339) [Ben Laurie and Google Security Team]
496 *) Add AES IGE and biIGE modes.
499 *) Change the Unix randomness entropy gathering to use poll() when
500 possible instead of select(), since the latter has some
501 undesirable limitations.
502 [Darryl Miles via Richard Levitte and Bodo Moeller]
504 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
505 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
506 cannot be implicitly activated as part of, e.g., the "AES" alias.
507 However, please upgrade to OpenSSL 0.9.9[-dev] for
508 non-experimental use of the ECC ciphersuites to get TLS extension
509 support, which is required for curve and point format negotiation
510 to avoid potential handshake problems.
513 *) Disable rogue ciphersuites:
515 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
516 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
517 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
519 The latter two were purportedly from
520 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
523 Also deactivate the remaining ciphersuites from
524 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
525 unofficial, and the ID has long expired.
528 *) Fix RSA blinding Heisenbug (problems sometimes occured on
529 dual-core machines) and other potential thread-safety issues.
532 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
533 versions), which is now available for royalty-free use
534 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
535 Also, add Camellia TLS ciphersuites from RFC 4132.
537 To minimize changes between patchlevels in the OpenSSL 0.9.8
538 series, Camellia remains excluded from compilation unless OpenSSL
539 is configured with 'enable-camellia'.
542 *) Disable the padding bug check when compression is in use. The padding
543 bug check assumes the first packet is of even length, this is not
544 necessarily true if compresssion is enabled and can result in false
545 positives causing handshake failure. The actual bug test is ancient
546 code so it is hoped that implementations will either have fixed it by
547 now or any which still have the bug do not support compression.
550 Changes between 0.9.8a and 0.9.8b [04 May 2006]
552 *) When applying a cipher rule check to see if string match is an explicit
553 cipher suite and only match that one cipher suite if it is.
556 *) Link in manifests for VC++ if needed.
557 [Austin Ziegler <halostatue@gmail.com>]
559 *) Update support for ECC-based TLS ciphersuites according to
560 draft-ietf-tls-ecc-12.txt with proposed changes (but without
561 TLS extensions, which are supported starting with the 0.9.9
562 branch, not in the OpenSSL 0.9.8 branch).
565 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
566 opaque EVP_CIPHER_CTX handling.
569 *) Fixes and enhancements to zlib compression code. We now only use
570 "zlib1.dll" and use the default __cdecl calling convention on Win32
571 to conform with the standards mentioned here:
572 http://www.zlib.net/DLL_FAQ.txt
573 Static zlib linking now works on Windows and the new --with-zlib-include
574 --with-zlib-lib options to Configure can be used to supply the location
575 of the headers and library. Gracefully handle case where zlib library
579 *) Several fixes and enhancements to the OID generation code. The old code
580 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
581 handle numbers larger than ULONG_MAX, truncated printing and had a
582 non standard OBJ_obj2txt() behaviour.
585 *) Add support for building of engines under engine/ as shared libraries
586 under VC++ build system.
589 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
590 Hopefully, we will not see any false combination of paths any more.
593 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
595 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
596 (part of SSL_OP_ALL). This option used to disable the
597 countermeasure against man-in-the-middle protocol-version
598 rollback in the SSL 2.0 server implementation, which is a bad
599 idea. (CVE-2005-2969)
601 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
602 for Information Security, National Institute of Advanced Industrial
603 Science and Technology [AIST], Japan)]
605 *) Add two function to clear and return the verify parameter flags.
608 *) Keep cipherlists sorted in the source instead of sorting them at
609 runtime, thus removing the need for a lock.
612 *) Avoid some small subgroup attacks in Diffie-Hellman.
613 [Nick Mathewson and Ben Laurie]
615 *) Add functions for well-known primes.
618 *) Extended Windows CE support.
619 [Satoshi Nakamura and Andy Polyakov]
621 *) Initialize SSL_METHOD structures at compile time instead of during
622 runtime, thus removing the need for a lock.
625 *) Make PKCS7_decrypt() work even if no certificate is supplied by
626 attempting to decrypt each encrypted key in turn. Add support to
630 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
632 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
635 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
638 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
639 key into the same file any more.
642 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
645 *) Add -utf8 command line and config file option to 'ca'.
646 [Stefan <stf@udoma.org]
648 *) Removed the macro des_crypt(), as it seems to conflict with some
649 libraries. Use DES_crypt().
652 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
653 involves renaming the source and generated shared-libs for
654 both. The engines will accept the corrected or legacy ids
655 ('ncipher' and '4758_cca' respectively) when binding. NB,
656 this only applies when building 'shared'.
657 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
659 *) Add attribute functions to EVP_PKEY structure. Modify
660 PKCS12_create() to recognize a CSP name attribute and
661 use it. Make -CSP option work again in pkcs12 utility.
664 *) Add new functionality to the bn blinding code:
665 - automatic re-creation of the BN_BLINDING parameters after
666 a fixed number of uses (currently 32)
667 - add new function for parameter creation
668 - introduce flags to control the update behaviour of the
669 BN_BLINDING parameters
670 - hide BN_BLINDING structure
671 Add a second BN_BLINDING slot to the RSA structure to improve
672 performance when a single RSA object is shared among several
676 *) Add support for DTLS.
677 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
679 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
680 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
683 *) Remove buggy and incompletet DH cert support from
684 ssl/ssl_rsa.c and ssl/s3_both.c
687 *) Use SHA-1 instead of MD5 as the default digest algorithm for
688 the apps/openssl applications.
691 *) Compile clean with "-Wall -Wmissing-prototypes
692 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
693 DEBUG_SAFESTACK must also be set.
696 *) Change ./Configure so that certain algorithms can be disabled by default.
697 The new counterpiece to "no-xxx" is "enable-xxx".
699 The patented RC5 and MDC2 algorithms will now be disabled unless
700 "enable-rc5" and "enable-mdc2", respectively, are specified.
702 (IDEA remains enabled despite being patented. This is because IDEA
703 is frequently required for interoperability, and there is no license
704 fee for non-commercial use. As before, "no-idea" can be used to
705 avoid this algorithm.)
709 *) Add processing of proxy certificates (see RFC 3820). This work was
710 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
711 EGEE (Enabling Grids for E-science in Europe).
714 *) RC4 performance overhaul on modern architectures/implementations, such
715 as Intel P4, IA-64 and AMD64.
718 *) New utility extract-section.pl. This can be used specify an alternative
719 section number in a pod file instead of having to treat each file as
720 a separate case in Makefile. This can be done by adding two lines to the
723 =for comment openssl_section:XXX
725 The blank line is mandatory.
729 *) New arguments -certform, -keyform and -pass for s_client and s_server
730 to allow alternative format key and certificate files and passphrase
734 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
735 update associated structures and add various utility functions.
737 Add new policy related verify parameters, include policy checking in
738 standard verify code. Enhance 'smime' application with extra parameters
739 to support policy checking and print out.
742 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
743 Nehemiah processors. These extensions support AES encryption in hardware
744 as well as RNG (though RNG support is currently disabled).
745 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
747 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
750 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
751 [Andy Polyakov and a number of other people]
753 *) Improved PowerPC platform support. Most notably BIGNUM assembler
754 implementation contributed by IBM.
755 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
757 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
758 exponent rather than 'unsigned long'. There is a corresponding change to
759 the new 'rsa_keygen' element of the RSA_METHOD structure.
760 [Jelte Jansen, Geoff Thorpe]
762 *) Functionality for creating the initial serial number file is now
763 moved from CA.pl to the 'ca' utility with a new option -create_serial.
765 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
766 number file to 1, which is bound to cause problems. To avoid
767 the problems while respecting compatibility between different 0.9.7
768 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
769 CA.pl for serial number initialization. With the new release 0.9.8,
770 we can fix the problem directly in the 'ca' utility.)
773 *) Reduced header interdepencies by declaring more opaque objects in
774 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
775 give fewer recursive includes, which could break lazy source code - so
776 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
777 developers should define this symbol when building and using openssl to
778 ensure they track the recommended behaviour, interfaces, [etc], but
779 backwards-compatible behaviour prevails when this isn't defined.
782 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
785 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
786 This will generate a random key of the appropriate length based on the
787 cipher context. The EVP_CIPHER can provide its own random key generation
788 routine to support keys of a specific form. This is used in the des and
789 3des routines to generate a key of the correct parity. Update S/MIME
790 code to use new functions and hence generate correct parity DES keys.
791 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
792 valid (weak or incorrect parity).
795 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
796 as looking them up. This is useful when the verified structure may contain
797 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
798 present unless the new PKCS7_NO_CRL flag is asserted.
801 *) Extend ASN1 oid configuration module. It now additionally accepts the
804 shortName = some long name, 1.2.3.4
807 *) Reimplemented the BN_CTX implementation. There is now no more static
808 limitation on the number of variables it can handle nor the depth of the
809 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
810 information can now expand as required, and rather than having a single
811 static array of bignums, BN_CTX now uses a linked-list of such arrays
812 allowing it to expand on demand whilst maintaining the usefulness of
816 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
817 to allow all RSA operations to function using a single BN_CTX.
820 *) Preliminary support for certificate policy evaluation and checking. This
821 is initially intended to pass the tests outlined in "Conformance Testing
822 of Relying Party Client Certificate Path Processing Logic" v1.07.
825 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
826 remained unused and not that useful. A variety of other little bignum
827 tweaks and fixes have also been made continuing on from the audit (see
831 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
832 associated ASN1, EVP and SSL functions and old ASN1 macros.
835 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
836 and this should never fail. So the return value from the use of
837 BN_set_word() (which can fail due to needless expansion) is now deprecated;
838 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
841 *) BN_CTX_get() should return zero-valued bignums, providing the same
842 initialised value as BN_new().
843 [Geoff Thorpe, suggested by Ulf Möller]
845 *) Support for inhibitAnyPolicy certificate extension.
848 *) An audit of the BIGNUM code is underway, for which debugging code is
849 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
850 is considered valid when processing BIGNUMs, and causes execution to
851 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
852 further steps are taken to deliberately pollute unused data in BIGNUM
853 structures to try and expose faulty code further on. For now, openssl will
854 (in its default mode of operation) continue to tolerate the inconsistent
855 forms that it has tolerated in the past, but authors and packagers should
856 consider trying openssl and their own applications when compiled with
857 these debugging symbols defined. It will help highlight potential bugs in
858 their own code, and will improve the test coverage for OpenSSL itself. At
859 some point, these tighter rules will become openssl's default to improve
860 maintainability, though the assert()s and other overheads will remain only
861 in debugging configurations. See bn.h for more details.
862 [Geoff Thorpe, Nils Larsch, Ulf Möller]
864 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
865 that can only be obtained through BN_CTX_new() (which implicitly
866 initialises it). The presence of this function only made it possible
867 to overwrite an existing structure (and cause memory leaks).
870 *) Because of the callback-based approach for implementing LHASH as a
871 template type, lh_insert() adds opaque objects to hash-tables and
872 lh_doall() or lh_doall_arg() are typically used with a destructor callback
873 to clean up those corresponding objects before destroying the hash table
874 (and losing the object pointers). So some over-zealous constifications in
875 LHASH have been relaxed so that lh_insert() does not take (nor store) the
876 objects as "const" and the lh_doall[_arg] callback wrappers are not
877 prototyped to have "const" restrictions on the object pointers they are
878 given (and so aren't required to cast them away any more).
881 *) The tmdiff.h API was so ugly and minimal that our own timing utility
882 (speed) prefers to use its own implementation. The two implementations
883 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
884 its object type properly exposed (MS_TM) instead of casting to/from "char
885 *". This may still change yet if someone realises MS_TM and "ms_time_***"
886 aren't necessarily the greatest nomenclatures - but this is what was used
887 internally to the implementation so I've used that for now.
890 *) Ensure that deprecated functions do not get compiled when
891 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
892 the self-tests were still using deprecated key-generation functions so
893 these have been updated also.
896 *) Reorganise PKCS#7 code to separate the digest location functionality
897 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
898 New function PKCS7_set_digest() to set the digest type for PKCS#7
899 digestedData type. Add additional code to correctly generate the
900 digestedData type and add support for this type in PKCS7 initialization
904 *) New function PKCS7_set0_type_other() this initializes a PKCS7
905 structure of type "other".
908 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
909 sure the loop does correctly stop and breaking ("division by zero")
910 modulus operations are not performed. The (pre-generated) prime
911 table crypto/bn/bn_prime.h was already correct, but it could not be
912 re-generated on some platforms because of the "division by zero"
913 situation in the script.
914 [Ralf S. Engelschall]
916 *) Update support for ECC-based TLS ciphersuites according to
917 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
918 SHA-1 now is only used for "small" curves (where the
919 representation of a field element takes up to 24 bytes); for
920 larger curves, the field element resulting from ECDH is directly
921 used as premaster secret.
922 [Douglas Stebila (Sun Microsystems Laboratories)]
924 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
925 curve secp160r1 to the tests.
926 [Douglas Stebila (Sun Microsystems Laboratories)]
928 *) Add the possibility to load symbols globally with DSO.
929 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
931 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
932 control of the error stack.
935 *) Add support for STORE in ENGINE.
938 *) Add the STORE type. The intention is to provide a common interface
939 to certificate and key stores, be they simple file-based stores, or
940 HSM-type store, or LDAP stores, or...
941 NOTE: The code is currently UNTESTED and isn't really used anywhere.
944 *) Add a generic structure called OPENSSL_ITEM. This can be used to
945 pass a list of arguments to any function as well as provide a way
946 for a function to pass data back to the caller.
949 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
950 works like BUF_strdup() but can be used to duplicate a portion of
951 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
955 *) Add the function sk_find_ex() which works like sk_find(), but will
956 return an index to an element even if an exact match couldn't be
957 found. The index is guaranteed to point at the element where the
958 searched-for key would be inserted to preserve sorting order.
961 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
962 takes an extra flags argument for optional functionality. Currently,
963 the following flags are defined:
965 OBJ_BSEARCH_VALUE_ON_NOMATCH
966 This one gets OBJ_bsearch_ex() to return a pointer to the first
967 element where the comparing function returns a negative or zero
970 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
971 This one gets OBJ_bsearch_ex() to return a pointer to the first
972 element where the comparing function returns zero. This is useful
973 if there are more than one element where the comparing function
977 *) Make it possible to create self-signed certificates with 'openssl ca'
978 in such a way that the self-signed certificate becomes part of the
979 CA database and uses the same mechanisms for serial number generation
980 as all other certificate signing. The new flag '-selfsign' enables
981 this functionality. Adapt CA.sh and CA.pl.in.
984 *) Add functionality to check the public key of a certificate request
985 against a given private. This is useful to check that a certificate
986 request can be signed by that key (self-signing).
989 *) Make it possible to have multiple active certificates with the same
990 subject in the CA index file. This is done only if the keyword
991 'unique_subject' is set to 'no' in the main CA section (default
992 if 'CA_default') of the configuration file. The value is saved
993 with the database itself in a separate index attribute file,
994 named like the index file with '.attr' appended to the name.
997 *) Generate muti valued AVAs using '+' notation in config files for
1001 *) Support for nameConstraints certificate extension.
1004 *) Support for policyConstraints certificate extension.
1007 *) Support for policyMappings certificate extension.
1010 *) Make sure the default DSA_METHOD implementation only uses its
1011 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1012 and change its own handlers to be NULL so as to remove unnecessary
1013 indirection. This lets alternative implementations fallback to the
1014 default implementation more easily.
1017 *) Support for directoryName in GeneralName related extensions
1021 *) Make it possible to link applications using Makefile.shared.
1022 Make that possible even when linking against static libraries!
1025 *) Support for single pass processing for S/MIME signing. This now
1026 means that S/MIME signing can be done from a pipe, in addition
1027 cleartext signing (multipart/signed type) is effectively streaming
1028 and the signed data does not need to be all held in memory.
1030 This is done with a new flag PKCS7_STREAM. When this flag is set
1031 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1032 is done after the data is output (and digests calculated) in
1033 SMIME_write_PKCS7().
1036 *) Add full support for -rpath/-R, both in shared libraries and
1037 applications, at least on the platforms where it's known how
1041 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1042 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1043 will now compute a table of multiples of the generator that
1044 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1045 faster (notably in the case of a single point multiplication,
1046 scalar * generator).
1047 [Nils Larsch, Bodo Moeller]
1049 *) IPv6 support for certificate extensions. The various extensions
1050 which use the IP:a.b.c.d can now take IPv6 addresses using the
1051 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1055 *) Added an ENGINE that implements RSA by performing private key
1056 exponentiations with the GMP library. The conversions to and from
1057 GMP's mpz_t format aren't optimised nor are any montgomery forms
1058 cached, and on x86 it appears OpenSSL's own performance has caught up.
1059 However there are likely to be other architectures where GMP could
1060 provide a boost. This ENGINE is not built in by default, but it can be
1061 specified at Configure time and should be accompanied by the necessary
1062 linker additions, eg;
1063 ./config -DOPENSSL_USE_GMP -lgmp
1066 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1067 testing availability of engines with "-t" - the old behaviour is
1068 produced by increasing the feature's verbosity with "-tt".
1071 *) ECDSA routines: under certain error conditions uninitialized BN objects
1072 could be freed. Solution: make sure initialization is performed early
1073 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1077 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1078 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1079 software implementations. For DSA and DH, parameter generation can
1080 also be overriden by providing the appropriate method callbacks.
1083 *) Change the "progress" mechanism used in key-generation and
1084 primality testing to functions that take a new BN_GENCB pointer in
1085 place of callback/argument pairs. The new API functions have "_ex"
1086 postfixes and the older functions are reimplemented as wrappers for
1087 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1088 declarations of the old functions to help (graceful) attempts to
1089 migrate to the new functions. Also, the new key-generation API
1090 functions operate on a caller-supplied key-structure and return
1091 success/failure rather than returning a key or NULL - this is to
1092 help make "keygen" another member function of RSA_METHOD etc.
1094 Example for using the new callback interface:
1096 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1100 BN_GENCB_set(&my_cb, my_callback, my_arg);
1102 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1103 /* For the meaning of a, b in calls to my_callback(), see the
1104 * documentation of the function that calls the callback.
1105 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1106 * my_callback should return 1 if it wants BN_is_prime_ex()
1107 * to continue, or 0 to stop.
1112 *) Change the ZLIB compression method to be stateful, and make it
1113 available to TLS with the number defined in
1114 draft-ietf-tls-compression-04.txt.
1117 *) Add the ASN.1 structures and functions for CertificatePair, which
1118 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1120 CertificatePair ::= SEQUENCE {
1121 forward [0] Certificate OPTIONAL,
1122 reverse [1] Certificate OPTIONAL,
1123 -- at least one of the pair shall be present -- }
1125 Also implement the PEM functions to read and write certificate
1126 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1128 This needed to be defined, mostly for the sake of the LDAP
1129 attribute crossCertificatePair, but may prove useful elsewhere as
1133 *) Make it possible to inhibit symlinking of shared libraries in
1134 Makefile.shared, for Cygwin's sake.
1137 *) Extend the BIGNUM API by creating a function
1138 void BN_set_negative(BIGNUM *a, int neg);
1139 and a macro that behave like
1140 int BN_is_negative(const BIGNUM *a);
1142 to avoid the need to access 'a->neg' directly in applications.
1145 *) Implement fast modular reduction for pseudo-Mersenne primes
1146 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1147 EC_GROUP_new_curve_GFp() will now automatically use this
1149 [Nils Larsch <nla@trustcenter.de>]
1151 *) Add new lock type (CRYPTO_LOCK_BN).
1154 *) Change the ENGINE framework to automatically load engines
1155 dynamically from specific directories unless they could be
1156 found to already be built in or loaded. Move all the
1157 current engines except for the cryptodev one to a new
1159 The engines in engines/ are built as shared libraries if
1160 the "shared" options was given to ./Configure or ./config.
1161 Otherwise, they are inserted in libcrypto.a.
1162 /usr/local/ssl/engines is the default directory for dynamic
1163 engines, but that can be overriden at configure time through
1164 the usual use of --prefix and/or --openssldir, and at run
1165 time with the environment variable OPENSSL_ENGINES.
1166 [Geoff Thorpe and Richard Levitte]
1168 *) Add Makefile.shared, a helper makefile to build shared
1169 libraries. Addapt Makefile.org.
1172 *) Add version info to Win32 DLLs.
1173 [Peter 'Luna' Runestig" <peter@runestig.com>]
1175 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1176 can be added using this API to created arbitrary PKCS#12
1177 files while avoiding the low level API.
1179 New options to PKCS12_create(), key or cert can be NULL and
1180 will then be omitted from the output file. The encryption
1181 algorithm NIDs can be set to -1 for no encryption, the mac
1182 iteration count can be set to 0 to omit the mac.
1184 Enhance pkcs12 utility by making the -nokeys and -nocerts
1185 options work when creating a PKCS#12 file. New option -nomac
1186 to omit the mac, NONE can be set for an encryption algorithm.
1187 New code is modified to use the enhanced PKCS12_create()
1188 instead of the low level API.
1191 *) Extend ASN1 encoder to support indefinite length constructed
1192 encoding. This can output sequences tags and octet strings in
1193 this form. Modify pk7_asn1.c to support indefinite length
1194 encoding. This is experimental and needs additional code to
1195 be useful, such as an ASN1 bio and some enhanced streaming
1198 Extend template encode functionality so that tagging is passed
1199 down to the template encoder.
1202 *) Let 'openssl req' fail if an argument to '-newkey' is not
1203 recognized instead of using RSA as a default.
1206 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1207 As these are not official, they are not included in "ALL";
1208 the "ECCdraft" ciphersuite group alias can be used to select them.
1209 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1211 *) Add ECDH engine support.
1212 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1214 *) Add ECDH in new directory crypto/ecdh/.
1215 [Douglas Stebila (Sun Microsystems Laboratories)]
1217 *) Let BN_rand_range() abort with an error after 100 iterations
1218 without success (which indicates a broken PRNG).
1221 *) Change BN_mod_sqrt() so that it verifies that the input value
1222 is really the square of the return value. (Previously,
1223 BN_mod_sqrt would show GIGO behaviour.)
1226 *) Add named elliptic curves over binary fields from X9.62, SECG,
1227 and WAP/WTLS; add OIDs that were still missing.
1229 [Sheueling Chang Shantz and Douglas Stebila
1230 (Sun Microsystems Laboratories)]
1232 *) Extend the EC library for elliptic curves over binary fields
1233 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1236 EC_GF2m_simple_method
1240 EC_GROUP_new_curve_GF2m
1241 EC_GROUP_set_curve_GF2m
1242 EC_GROUP_get_curve_GF2m
1243 EC_POINT_set_affine_coordinates_GF2m
1244 EC_POINT_get_affine_coordinates_GF2m
1245 EC_POINT_set_compressed_coordinates_GF2m
1247 Point compression for binary fields is disabled by default for
1248 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1251 As binary polynomials are represented as BIGNUMs, various members
1252 of the EC_GROUP and EC_POINT data structures can be shared
1253 between the implementations for prime fields and binary fields;
1254 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1255 are essentially identical to their ..._GFp counterparts.
1256 (For simplicity, the '..._GFp' prefix has been dropped from
1257 various internal method names.)
1259 An internal 'field_div' method (similar to 'field_mul' and
1260 'field_sqr') has been added; this is used only for binary fields.
1262 [Sheueling Chang Shantz and Douglas Stebila
1263 (Sun Microsystems Laboratories)]
1265 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1266 through methods ('mul', 'precompute_mult').
1268 The generic implementations (now internally called 'ec_wNAF_mul'
1269 and 'ec_wNAF_precomputed_mult') remain the default if these
1270 methods are undefined.
1272 [Sheueling Chang Shantz and Douglas Stebila
1273 (Sun Microsystems Laboratories)]
1275 *) New function EC_GROUP_get_degree, which is defined through
1276 EC_METHOD. For curves over prime fields, this returns the bit
1277 length of the modulus.
1279 [Sheueling Chang Shantz and Douglas Stebila
1280 (Sun Microsystems Laboratories)]
1282 *) New functions EC_GROUP_dup, EC_POINT_dup.
1283 (These simply call ..._new and ..._copy).
1285 [Sheueling Chang Shantz and Douglas Stebila
1286 (Sun Microsystems Laboratories)]
1288 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1289 Polynomials are represented as BIGNUMs (where the sign bit is not
1290 used) in the following functions [macros]:
1293 BN_GF2m_sub [= BN_GF2m_add]
1294 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1295 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1296 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1298 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1299 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1300 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1301 BN_GF2m_cmp [= BN_ucmp]
1303 (Note that only the 'mod' functions are actually for fields GF(2^m).
1304 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1306 For some functions, an the irreducible polynomial defining a
1307 field can be given as an 'unsigned int[]' with strictly
1308 decreasing elements giving the indices of those bits that are set;
1309 i.e., p[] represents the polynomial
1310 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1312 p[0] > p[1] > ... > p[k] = 0.
1313 This applies to the following functions:
1318 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1319 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1321 BN_GF2m_mod_sqrt_arr
1322 BN_GF2m_mod_solve_quad_arr
1326 Conversion can be performed by the following functions:
1331 bntest.c has additional tests for binary polynomial arithmetic.
1333 Two implementations for BN_GF2m_mod_div() are available.
1334 The default algorithm simply uses BN_GF2m_mod_inv() and
1335 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1336 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1337 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1339 [Sheueling Chang Shantz and Douglas Stebila
1340 (Sun Microsystems Laboratories)]
1342 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1343 functionality is disabled at compile-time.
1344 [Douglas Stebila <douglas.stebila@sun.com>]
1346 *) Change default behaviour of 'openssl asn1parse' so that more
1347 information is visible when viewing, e.g., a certificate:
1349 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1350 mode the content of non-printable OCTET STRINGs is output in a
1351 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1352 avoid the appearance of a printable string.
1353 [Nils Larsch <nla@trustcenter.de>]
1355 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1357 EC_GROUP_set_asn1_flag()
1358 EC_GROUP_get_asn1_flag()
1359 EC_GROUP_set_point_conversion_form()
1360 EC_GROUP_get_point_conversion_form()
1361 These control ASN1 encoding details:
1362 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1363 has been set to OPENSSL_EC_NAMED_CURVE.
1364 - Points are encoded in uncompressed form by default; options for
1365 asn1_for are as for point2oct, namely
1366 POINT_CONVERSION_COMPRESSED
1367 POINT_CONVERSION_UNCOMPRESSED
1368 POINT_CONVERSION_HYBRID
1370 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1373 EC_GROUP_get0_seed()
1374 EC_GROUP_get_seed_len()
1375 This is used only for ASN1 purposes (so far).
1376 [Nils Larsch <nla@trustcenter.de>]
1378 *) Add 'field_type' member to EC_METHOD, which holds the NID
1379 of the appropriate field type OID. The new function
1380 EC_METHOD_get_field_type() returns this value.
1381 [Nils Larsch <nla@trustcenter.de>]
1386 EC_POINT_point2hex()
1387 EC_POINT_hex2point()
1388 providing useful interfaces to EC_POINT_point2oct() and
1389 EC_POINT_oct2point().
1390 [Nils Larsch <nla@trustcenter.de>]
1392 *) Change internals of the EC library so that the functions
1393 EC_GROUP_set_generator()
1394 EC_GROUP_get_generator()
1395 EC_GROUP_get_order()
1396 EC_GROUP_get_cofactor()
1397 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1398 to methods, which would lead to unnecessary code duplication when
1399 adding different types of curves.
1400 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1402 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1403 arithmetic, and such that modified wNAFs are generated
1404 (which avoid length expansion in many cases).
1407 *) Add a function EC_GROUP_check_discriminant() (defined via
1408 EC_METHOD) that verifies that the curve discriminant is non-zero.
1410 Add a function EC_GROUP_check() that makes some sanity tests
1411 on a EC_GROUP, its generator and order. This includes
1412 EC_GROUP_check_discriminant().
1413 [Nils Larsch <nla@trustcenter.de>]
1415 *) Add ECDSA in new directory crypto/ecdsa/.
1417 Add applications 'openssl ecparam' and 'openssl ecdsa'
1418 (these are based on 'openssl dsaparam' and 'openssl dsa').
1420 ECDSA support is also included in various other files across the
1421 library. Most notably,
1422 - 'openssl req' now has a '-newkey ecdsa:file' option;
1423 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1424 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1425 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1426 them suitable for ECDSA where domain parameters must be
1427 extracted before the specific public key;
1428 - ECDSA engine support has been added.
1429 [Nils Larsch <nla@trustcenter.de>]
1431 *) Include some named elliptic curves, and add OIDs from X9.62,
1432 SECG, and WAP/WTLS. Each curve can be obtained from the new
1434 EC_GROUP_new_by_curve_name(),
1435 and the list of available named curves can be obtained with
1436 EC_get_builtin_curves().
1437 Also add a 'curve_name' member to EC_GROUP objects, which can be
1439 EC_GROUP_set_curve_name()
1440 EC_GROUP_get_curve_name()
1441 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1443 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1444 was actually never needed) and in BN_mul(). The removal in BN_mul()
1445 required a small change in bn_mul_part_recursive() and the addition
1446 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1447 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1448 bn_sub_words() and bn_add_words() except they take arrays with
1452 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1454 *) In the SSL/TLS server implementation, be strict about session ID
1455 context matching (which matters if an application uses a single
1456 external cache for different purposes). Previously,
1457 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1458 set. This did ensure strict client verification, but meant that,
1459 with applications using a single external cache for quite
1460 different requirements, clients could circumvent ciphersuite
1461 restrictions for a given session ID context by starting a session
1462 in a different context.
1465 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1467 *) Cleanse PEM buffers before freeing them since they may contain
1469 [Benjamin Bennett <ben@psc.edu>]
1471 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1472 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1473 authentication-only ciphersuites.
1476 *) Since AES128 and AES256 share a single mask bit in the logic of
1477 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1478 kludge to work properly if AES128 is available and AES256 isn't.
1481 *) Expand security boundary to match 1.1.1 module.
1484 *) Remove redundant features: hash file source, editing of test vectors
1485 modify fipsld to use external fips_premain.c signature.
1488 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1489 run algorithm test programs.
1492 *) Make algorithm test programs more tolerant of whitespace.
1495 *) Have SSL/TLS server implementation tolerate "mismatched" record
1496 protocol version while receiving ClientHello even if the
1497 ClientHello is fragmented. (The server can't insist on the
1498 particular protocol version it has chosen before the ServerHello
1499 message has informed the client about his choice.)
1502 *) Load error codes if they are not already present instead of using a
1503 static variable. This allows them to be cleanly unloaded and reloaded.
1506 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1508 *) Introduce limits to prevent malicious keys being able to
1509 cause a denial of service. (CVE-2006-2940)
1510 [Steve Henson, Bodo Moeller]
1512 *) Fix ASN.1 parsing of certain invalid structures that can result
1513 in a denial of service. (CVE-2006-2937) [Steve Henson]
1515 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1516 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1518 *) Fix SSL client code which could crash if connecting to a
1519 malicious SSLv2 server. (CVE-2006-4343)
1520 [Tavis Ormandy and Will Drewry, Google Security Team]
1522 *) Change ciphersuite string processing so that an explicit
1523 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1524 will no longer include "AES128-SHA"), and any other similar
1525 ciphersuite (same bitmap) from *other* protocol versions (so that
1526 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1527 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1528 changes from 0.9.8b and 0.9.8d.
1531 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1533 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1534 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1536 *) Change the Unix randomness entropy gathering to use poll() when
1537 possible instead of select(), since the latter has some
1538 undesirable limitations.
1539 [Darryl Miles via Richard Levitte and Bodo Moeller]
1541 *) Disable rogue ciphersuites:
1543 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1544 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1545 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1547 The latter two were purportedly from
1548 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1551 Also deactive the remaining ciphersuites from
1552 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1553 unofficial, and the ID has long expired.
1556 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1557 dual-core machines) and other potential thread-safety issues.
1560 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1562 *) Adapt fipsld and the build system to link against the validated FIPS
1563 module in FIPS mode.
1566 *) Fixes for VC++ 2005 build under Windows.
1569 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1570 from a Windows bash shell such as MSYS. It is autodetected from the
1571 "config" script when run from a VC++ environment. Modify standard VC++
1572 build to use fipscanister.o from the GNU make build.
1575 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1577 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1578 The value now differs depending on if you build for FIPS or not.
1579 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1580 safely run with a non-FIPSed libcrypto, as it may crash because of
1581 the difference induced by this change.
1584 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1586 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1587 (part of SSL_OP_ALL). This option used to disable the
1588 countermeasure against man-in-the-middle protocol-version
1589 rollback in the SSL 2.0 server implementation, which is a bad
1590 idea. (CVE-2005-2969)
1592 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1593 for Information Security, National Institute of Advanced Industrial
1594 Science and Technology [AIST], Japan)]
1596 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1597 mainly for FIPS compliance and not fully integrated at this stage.
1600 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1601 the exponentiation using a fixed-length exponent. (Otherwise,
1602 the information leaked through timing could expose the secret key
1603 after many signatures; cf. Bleichenbacher's attack on DSA with
1607 *) Make a new fixed-window mod_exp implementation the default for
1608 RSA, DSA, and DH private-key operations so that the sequence of
1609 squares and multiplies and the memory access pattern are
1610 independent of the particular secret key. This will mitigate
1611 cache-timing and potential related attacks.
1613 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1614 and this is automatically used by BN_mod_exp_mont() if the new flag
1615 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1616 will use this BN flag for private exponents unless the flag
1617 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1618 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1620 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1622 *) Change the client implementation for SSLv23_method() and
1623 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1624 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1625 (Previously, the SSL 2.0 backwards compatible Client Hello
1626 message format would be used even with SSL_OP_NO_SSLv2.)
1629 *) Add support for smime-type MIME parameter in S/MIME messages which some
1633 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1634 a threadsafe manner. Modify rsa code to use new function and add calls
1635 to dsa and dh code (which had race conditions before).
1638 *) Include the fixed error library code in the C error file definitions
1639 instead of fixing them up at runtime. This keeps the error code
1640 structures constant.
1643 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1645 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1648 *) Fixes for newer kerberos headers. NB: the casts are needed because
1649 the 'length' field is signed on one version and unsigned on another
1650 with no (?) obvious way to tell the difference, without these VC++
1651 complains. Also the "definition" of FAR (blank) is no longer included
1652 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1653 some needed definitions.
1656 *) Undo Cygwin change.
1659 *) Added support for proxy certificates according to RFC 3820.
1660 Because they may be a security thread to unaware applications,
1661 they must be explicitely allowed in run-time. See
1662 docs/HOWTO/proxy_certificates.txt for further information.
1665 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1667 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1668 server and client random values. Previously
1669 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1670 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1672 This change has negligible security impact because:
1674 1. Server and client random values still have 24 bytes of pseudo random
1677 2. Server and client random values are sent in the clear in the initial
1680 3. The master secret is derived using the premaster secret (48 bytes in
1681 size for static RSA ciphersuites) as well as client server and random
1684 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1687 [Stephen Henson, reported by UK NISCC]
1689 *) Use Windows randomness collection on Cygwin.
1692 *) Fix hang in EGD/PRNGD query when communication socket is closed
1693 prematurely by EGD/PRNGD.
1694 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1696 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1699 *) Back-port of selected performance improvements from development
1700 branch, as well as improved support for PowerPC platforms.
1703 *) Add lots of checks for memory allocation failure, error codes to indicate
1704 failure and freeing up memory if a failure occurs.
1705 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1707 *) Add new -passin argument to dgst.
1710 *) Perform some character comparisons of different types in X509_NAME_cmp:
1711 this is needed for some certificates that reencode DNs into UTF8Strings
1712 (in violation of RFC3280) and can't or wont issue name rollover
1716 *) Make an explicit check during certificate validation to see that
1717 the CA setting in each certificate on the chain is correct. As a
1718 side effect always do the following basic checks on extensions,
1719 not just when there's an associated purpose to the check:
1721 - if there is an unhandled critical extension (unless the user
1722 has chosen to ignore this fault)
1723 - if the path length has been exceeded (if one is set at all)
1724 - that certain extensions fit the associated purpose (if one has
1728 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1730 *) Avoid a race condition when CRLs are checked in a multi threaded
1731 environment. This would happen due to the reordering of the revoked
1732 entries during signature checking and serial number lookup. Now the
1733 encoding is cached and the serial number sort performed under a lock.
1734 Add new STACK function sk_is_sorted().
1737 *) Add Delta CRL to the extension code.
1740 *) Various fixes to s3_pkt.c so alerts are sent properly.
1741 [David Holmes <d.holmes@f5.com>]
1743 *) Reduce the chances of duplicate issuer name and serial numbers (in
1744 violation of RFC3280) using the OpenSSL certificate creation utilities.
1745 This is done by creating a random 64 bit value for the initial serial
1746 number when a serial number file is created or when a self signed
1747 certificate is created using 'openssl req -x509'. The initial serial
1748 number file is created using 'openssl x509 -next_serial' in CA.pl
1749 rather than being initialized to 1.
1752 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1754 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1755 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1756 [Joe Orton, Steve Henson]
1758 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1760 [Joe Orton, Steve Henson]
1762 *) Make it possible to have multiple active certificates with the same
1763 subject in the CA index file. This is done only if the keyword
1764 'unique_subject' is set to 'no' in the main CA section (default
1765 if 'CA_default') of the configuration file. The value is saved
1766 with the database itself in a separate index attribute file,
1767 named like the index file with '.attr' appended to the name.
1770 *) X509 verify fixes. Disable broken certificate workarounds when
1771 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1772 keyUsage extension present. Don't accept CRLs with unhandled critical
1773 extensions: since verify currently doesn't process CRL extensions this
1774 rejects a CRL with *any* critical extensions. Add new verify error codes
1778 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1779 A clarification of RFC2560 will require the use of OCTET STRINGs and
1780 some implementations cannot handle the current raw format. Since OpenSSL
1781 copies and compares OCSP nonces as opaque blobs without any attempt at
1782 parsing them this should not create any compatibility issues.
1785 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1786 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1787 this HMAC (and other) operations are several times slower than OpenSSL
1791 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1792 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1794 *) Use the correct content when signing type "other".
1797 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1799 *) Fix various bugs revealed by running the NISCC test suite:
1801 Stop out of bounds reads in the ASN1 code when presented with
1802 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1804 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1806 If verify callback ignores invalid public key errors don't try to check
1807 certificate signature with the NULL public key.
1811 *) New -ignore_err option in ocsp application to stop the server
1812 exiting on the first error in a request.
1815 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1816 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1820 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1821 extra data after the compression methods not only for TLS 1.0
1822 but also for SSL 3.0 (as required by the specification).
1823 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1825 *) Change X509_certificate_type() to mark the key as exported/exportable
1826 when it's 512 *bits* long, not 512 bytes.
1829 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1830 blocks during encryption.
1833 *) Various fixes to base64 BIO and non blocking I/O. On write
1834 flushes were not handled properly if the BIO retried. On read
1835 data was not being buffered properly and had various logic bugs.
1836 This also affects blocking I/O when the data being decoded is a
1840 *) Various S/MIME bugfixes and compatibility changes:
1841 output correct application/pkcs7 MIME type if
1842 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1843 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1844 of files as .eml work). Correctly handle very long lines in MIME
1848 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1850 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1851 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1852 a protocol version number mismatch like a decryption error
1853 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1856 *) Turn on RSA blinding by default in the default implementation
1857 to avoid a timing attack. Applications that don't want it can call
1858 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1859 They would be ill-advised to do so in most cases.
1860 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1862 *) Change RSA blinding code so that it works when the PRNG is not
1863 seeded (in this case, the secret RSA exponent is abused as
1864 an unpredictable seed -- if it is not unpredictable, there
1865 is no point in blinding anyway). Make RSA blinding thread-safe
1866 by remembering the creator's thread ID in rsa->blinding and
1867 having all other threads use local one-time blinding factors
1868 (this requires more computation than sharing rsa->blinding, but
1869 avoids excessive locking; and if an RSA object is not shared
1870 between threads, blinding will still be very fast).
1873 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1874 ENGINE as defaults for all supported algorithms irrespective of
1875 the 'flags' parameter. 'flags' is now honoured, so applications
1876 should make sure they are passing it correctly.
1879 *) Target "mingw" now allows native Windows code to be generated in
1880 the Cygwin environment as well as with the MinGW compiler.
1883 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1885 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1886 via timing by performing a MAC computation even if incorrrect
1887 block cipher padding has been found. This is a countermeasure
1888 against active attacks where the attacker has to distinguish
1889 between bad padding and a MAC verification error. (CVE-2003-0078)
1891 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1892 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1893 Martin Vuagnoux (EPFL, Ilion)]
1895 *) Make the no-err option work as intended. The intention with no-err
1896 is not to have the whole error stack handling routines removed from
1897 libcrypto, it's only intended to remove all the function name and
1898 reason texts, thereby removing some of the footprint that may not
1899 be interesting if those errors aren't displayed anyway.
1901 NOTE: it's still possible for any application or module to have it's
1902 own set of error texts inserted. The routines are there, just not
1903 used by default when no-err is given.
1906 *) Add support for FreeBSD on IA64.
1907 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1909 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1910 Kerberos function mit_des_cbc_cksum(). Before this change,
1911 the value returned by DES_cbc_cksum() was like the one from
1912 mit_des_cbc_cksum(), except the bytes were swapped.
1913 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1915 *) Allow an application to disable the automatic SSL chain building.
1916 Before this a rather primitive chain build was always performed in
1917 ssl3_output_cert_chain(): an application had no way to send the
1918 correct chain if the automatic operation produced an incorrect result.
1920 Now the chain builder is disabled if either:
1922 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1924 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1926 The reasoning behind this is that an application would not want the
1927 auto chain building to take place if extra chain certificates are
1928 present and it might also want a means of sending no additional
1929 certificates (for example the chain has two certificates and the
1933 *) Add the possibility to build without the ENGINE framework.
1934 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1936 *) Under Win32 gmtime() can return NULL: check return value in
1937 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1940 *) DSA routines: under certain error conditions uninitialized BN objects
1941 could be freed. Solution: make sure initialization is performed early
1942 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1943 Nils Larsch <nla@trustcenter.de> via PR#459)
1946 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1947 checked on reconnect on the client side, therefore session resumption
1948 could still fail with a "ssl session id is different" error. This
1949 behaviour is masked when SSL_OP_ALL is used due to
1950 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1951 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1952 followup to PR #377.
1955 *) IA-32 assembler support enhancements: unified ELF targets, support
1956 for SCO/Caldera platforms, fix for Cygwin shared build.
1959 *) Add support for FreeBSD on sparc64. As a consequence, support for
1960 FreeBSD on non-x86 processors is separate from x86 processors on
1961 the config script, much like the NetBSD support.
1962 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1964 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1966 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1969 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1970 code (06) was taken as the first octet of the session ID and the last
1971 octet was ignored consequently. As a result SSLv2 client side session
1972 caching could not have worked due to the session ID mismatch between
1974 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1978 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1979 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1983 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1984 seems that in spite of existing for more than a year, many application
1985 author have done nothing to provide the necessary callbacks, which
1986 means that this particular engine will not work properly anywhere.
1987 This is a very unfortunate situation which forces us, in the name
1988 of usability, to give the hw_ncipher.c a static lock, which is part
1990 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1991 appear in 0.9.8 or later. We EXPECT application authors to have
1992 dealt properly with this when 0.9.8 is released (unless we actually
1993 make such changes in the libcrypto locking code that changes will
1994 have to be made anyway).
1997 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1998 octets have been read, EOF or an error occurs. Without this change
1999 some truncated ASN1 structures will not produce an error.
2002 *) Disable Heimdal support, since it hasn't been fully implemented.
2003 Still give the possibility to force the use of Heimdal, but with
2004 warnings and a request that patches get sent to openssl-dev.
2007 *) Add the VC-CE target, introduce the WINCE sysname, and add
2008 INSTALL.WCE and appropriate conditionals to make it build.
2009 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2011 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2012 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2013 edit numbers of the version.
2014 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2016 *) Introduce safe string copy and catenation functions
2017 (BUF_strlcpy() and BUF_strlcat()).
2018 [Ben Laurie (CHATS) and Richard Levitte]
2020 *) Avoid using fixed-size buffers for one-line DNs.
2021 [Ben Laurie (CHATS)]
2023 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2024 resizing buffers containing secrets, and use where appropriate.
2025 [Ben Laurie (CHATS)]
2027 *) Avoid using fixed size buffers for configuration file location.
2028 [Ben Laurie (CHATS)]
2030 *) Avoid filename truncation for various CA files.
2031 [Ben Laurie (CHATS)]
2033 *) Use sizeof in preference to magic numbers.
2034 [Ben Laurie (CHATS)]
2036 *) Avoid filename truncation in cert requests.
2037 [Ben Laurie (CHATS)]
2039 *) Add assertions to check for (supposedly impossible) buffer
2041 [Ben Laurie (CHATS)]
2043 *) Don't cache truncated DNS entries in the local cache (this could
2044 potentially lead to a spoofing attack).
2045 [Ben Laurie (CHATS)]
2047 *) Fix various buffers to be large enough for hex/decimal
2048 representations in a platform independent manner.
2049 [Ben Laurie (CHATS)]
2051 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2052 resizing buffers containing secrets, and use where appropriate.
2053 [Ben Laurie (CHATS)]
2055 *) Add BIO_indent() to avoid much slightly worrying code to do
2057 [Ben Laurie (CHATS)]
2059 *) Convert sprintf()/BIO_puts() to BIO_printf().
2060 [Ben Laurie (CHATS)]
2062 *) buffer_gets() could terminate with the buffer only half
2064 [Ben Laurie (CHATS)]
2066 *) Add assertions to prevent user-supplied crypto functions from
2067 overflowing internal buffers by having large block sizes, etc.
2068 [Ben Laurie (CHATS)]
2070 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2072 [Ben Laurie (CHATS)]
2074 *) Eliminate unused copy of key in RC4.
2075 [Ben Laurie (CHATS)]
2077 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2078 [Ben Laurie (CHATS)]
2080 *) Fix off-by-one error in EGD path.
2081 [Ben Laurie (CHATS)]
2083 *) If RANDFILE path is too long, ignore instead of truncating.
2084 [Ben Laurie (CHATS)]
2086 *) Eliminate unused and incorrectly sized X.509 structure
2088 [Ben Laurie (CHATS)]
2090 *) Eliminate unused and dangerous function knumber().
2091 [Ben Laurie (CHATS)]
2093 *) Eliminate unused and dangerous structure, KSSL_ERR.
2094 [Ben Laurie (CHATS)]
2096 *) Protect against overlong session ID context length in an encoded
2097 session object. Since these are local, this does not appear to be
2099 [Ben Laurie (CHATS)]
2101 *) Change from security patch (see 0.9.6e below) that did not affect
2102 the 0.9.6 release series:
2104 Remote buffer overflow in SSL3 protocol - an attacker could
2105 supply an oversized master key in Kerberos-enabled versions.
2107 [Ben Laurie (CHATS)]
2109 *) Change the SSL kerb5 codes to match RFC 2712.
2112 *) Make -nameopt work fully for req and add -reqopt switch.
2113 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2115 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2116 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2118 *) Make sure tests can be performed even if the corresponding algorithms
2119 have been removed entirely. This was also the last step to make
2120 OpenSSL compilable with DJGPP under all reasonable conditions.
2121 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2123 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2124 to allow version independent disabling of normally unselected ciphers,
2125 which may be activated as a side-effect of selecting a single cipher.
2127 (E.g., cipher list string "RSA" enables ciphersuites that are left
2128 out of "ALL" because they do not provide symmetric encryption.
2129 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2130 [Lutz Jaenicke, Bodo Moeller]
2132 *) Add appropriate support for separate platform-dependent build
2133 directories. The recommended way to make a platform-dependent
2134 build directory is the following (tested on Linux), maybe with
2137 # Place yourself outside of the OpenSSL source tree. In
2138 # this example, the environment variable OPENSSL_SOURCE
2139 # is assumed to contain the absolute OpenSSL source directory.
2140 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2141 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2142 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2143 mkdir -p `dirname $F`
2144 ln -s $OPENSSL_SOURCE/$F $F
2147 To be absolutely sure not to disturb the source tree, a "make clean"
2148 is a good thing. If it isn't successfull, don't worry about it,
2149 it probably means the source directory is very clean.
2152 *) Make sure any ENGINE control commands make local copies of string
2153 pointers passed to them whenever necessary. Otherwise it is possible
2154 the caller may have overwritten (or deallocated) the original string
2155 data when a later ENGINE operation tries to use the stored values.
2156 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2158 *) Improve diagnostics in file reading and command-line digests.
2159 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2161 *) Add AES modes CFB and OFB to the object database. Correct an
2162 error in AES-CFB decryption.
2165 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2166 allows existing EVP_CIPHER_CTX structures to be reused after
2167 calling EVP_*Final(). This behaviour is used by encryption
2168 BIOs and some applications. This has the side effect that
2169 applications must explicitly clean up cipher contexts with
2170 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2173 *) Check the values of dna and dnb in bn_mul_recursive before calling
2174 bn_mul_comba (a non zero value means the a or b arrays do not contain
2175 n2 elements) and fallback to bn_mul_normal if either is not zero.
2178 *) Fix escaping of non-ASCII characters when using the -subj option
2179 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2182 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2183 form for "surname", serialNumber has no short form.
2184 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2185 therefore remove "mail" short name for "internet 7".
2186 The OID for unique identifiers in X509 certificates is
2187 x500UniqueIdentifier, not uniqueIdentifier.
2188 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2191 *) Add an "init" command to the ENGINE config module and auto initialize
2192 ENGINEs. Without any "init" command the ENGINE will be initialized
2193 after all ctrl commands have been executed on it. If init=1 the
2194 ENGINE is initailized at that point (ctrls before that point are run
2195 on the uninitialized ENGINE and after on the initialized one). If
2196 init=0 then the ENGINE will not be iniatialized at all.
2199 *) Fix the 'app_verify_callback' interface so that the user-defined
2200 argument is actually passed to the callback: In the
2201 SSL_CTX_set_cert_verify_callback() prototype, the callback
2202 declaration has been changed from
2205 int (*cb)(X509_STORE_CTX *,void *);
2206 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2207 i=s->ctx->app_verify_callback(&ctx)
2208 has been changed into
2209 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2211 To update applications using SSL_CTX_set_cert_verify_callback(),
2212 a dummy argument can be added to their callback functions.
2213 [D. K. Smetters <smetters@parc.xerox.com>]
2215 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2216 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2218 *) Add and OPENSSL_LOAD_CONF define which will cause
2219 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2220 This allows older applications to transparently support certain
2221 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2222 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2223 load the config file and OPENSSL_add_all_algorithms_conf() which will
2224 always load it have also been added.
2227 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2228 Adjust NIDs and EVP layer.
2229 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2231 *) Config modules support in openssl utility.
2233 Most commands now load modules from the config file,
2234 though in a few (such as version) this isn't done
2235 because it couldn't be used for anything.
2237 In the case of ca and req the config file used is
2238 the same as the utility itself: that is the -config
2239 command line option can be used to specify an
2243 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2244 use "openssl_conf" if filename is NULL use default openssl config file.
2247 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2248 config section name. Add a new flag to tolerate a missing config file
2249 and move code to CONF_modules_load_file().
2252 *) Support for crypto accelerator cards from Accelerated Encryption
2253 Processing, www.aep.ie. (Use engine 'aep')
2254 The support was copied from 0.9.6c [engine] and adapted/corrected
2255 to work with the new engine framework.
2256 [AEP Inc. and Richard Levitte]
2258 *) Support for SureWare crypto accelerator cards from Baltimore
2259 Technologies. (Use engine 'sureware')
2260 The support was copied from 0.9.6c [engine] and adapted
2261 to work with the new engine framework.
2264 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2265 make the newer ENGINE framework commands for the CHIL engine work.
2266 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2268 *) Make it possible to produce shared libraries on ReliantUNIX.
2269 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2271 *) Add the configuration target debug-linux-ppro.
2272 Make 'openssl rsa' use the general key loading routines
2273 implemented in apps.c, and make those routines able to
2274 handle the key format FORMAT_NETSCAPE and the variant
2276 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2278 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2279 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2281 *) Add -keyform to rsautl, and document -engine.
2282 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2284 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2285 BIO_R_NO_SUCH_FILE error code rather than the generic
2286 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2289 *) Add new functions
2291 ERR_peek_last_error_line
2292 ERR_peek_last_error_line_data.
2293 These are similar to
2296 ERR_peek_error_line_data,
2297 but report on the latest error recorded rather than the first one
2298 still in the error queue.
2299 [Ben Laurie, Bodo Moeller]
2301 *) default_algorithms option in ENGINE config module. This allows things
2303 default_algorithms = ALL
2304 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2307 *) Prelminary ENGINE config module.
2310 *) New experimental application configuration code.
2313 *) Change the AES code to follow the same name structure as all other
2314 symmetric ciphers, and behave the same way. Move everything to
2315 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2316 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2318 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2319 [Ben Laurie and Theo de Raadt]
2321 *) Add option to output public keys in req command.
2322 [Massimiliano Pala madwolf@openca.org]
2324 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2325 (up to about 10% better than before for P-192 and P-224).
2328 *) New functions/macros
2330 SSL_CTX_set_msg_callback(ctx, cb)
2331 SSL_CTX_set_msg_callback_arg(ctx, arg)
2332 SSL_set_msg_callback(ssl, cb)
2333 SSL_set_msg_callback_arg(ssl, arg)
2335 to request calling a callback function
2337 void cb(int write_p, int version, int content_type,
2338 const void *buf, size_t len, SSL *ssl, void *arg)
2340 whenever a protocol message has been completely received
2341 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2342 protocol version according to which the SSL library interprets
2343 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2344 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2345 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2346 specification (change_cipher_spec(20), alert(21), handshake(22)).
2347 'buf' and 'len' point to the actual message, 'ssl' to the
2348 SSL object, and 'arg' is the application-defined value set by
2349 SSL[_CTX]_set_msg_callback_arg().
2351 'openssl s_client' and 'openssl s_server' have new '-msg' options
2352 to enable a callback that displays all protocol messages.
2355 *) Change the shared library support so shared libraries are built as
2356 soon as the corresponding static library is finished, and thereby get
2357 openssl and the test programs linked against the shared library.
2358 This still only happens when the keyword "shard" has been given to
2359 the configuration scripts.
2361 NOTE: shared library support is still an experimental thing, and
2362 backward binary compatibility is still not guaranteed.
2363 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2365 *) Add support for Subject Information Access extension.
2366 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2368 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2369 additional bytes when new memory had to be allocated, not just
2370 when reusing an existing buffer.
2373 *) New command line and configuration option 'utf8' for the req command.
2374 This allows field values to be specified as UTF8 strings.
2377 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2378 runs for the former and machine-readable output for the latter.
2381 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2382 of the e-mail address in the DN (i.e., it will go into a certificate
2383 extension only). The new configuration file option 'email_in_dn = no'
2384 has the same effect.
2385 [Massimiliano Pala madwolf@openca.org]
2387 *) Change all functions with names starting with des_ to be starting
2388 with DES_ instead. Add wrappers that are compatible with libdes,
2389 but are named _ossl_old_des_*. Finally, add macros that map the
2390 des_* symbols to the corresponding _ossl_old_des_* if libdes
2391 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2392 desired, the des_* symbols will be mapped to DES_*, with one
2395 Since we provide two compatibility mappings, the user needs to
2396 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2397 compatibility is desired. The default (i.e., when that macro
2398 isn't defined) is OpenSSL 0.9.6c compatibility.
2400 There are also macros that enable and disable the support of old
2401 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2402 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2403 are defined, the default will apply: to support the old des routines.
2405 In either case, one must include openssl/des.h to get the correct
2406 definitions. Do not try to just include openssl/des_old.h, that
2409 NOTE: This is a major break of an old API into a new one. Software
2410 authors are encouraged to switch to the DES_ style functions. Some
2411 time in the future, des_old.h and the libdes compatibility functions
2412 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2413 default), and then completely removed.
2416 *) Test for certificates which contain unsupported critical extensions.
2417 If such a certificate is found during a verify operation it is
2418 rejected by default: this behaviour can be overridden by either
2419 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2420 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2421 X509_supported_extension() has also been added which returns 1 if a
2422 particular extension is supported.
2425 *) Modify the behaviour of EVP cipher functions in similar way to digests
2426 to retain compatibility with existing code.
2429 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2430 compatibility with existing code. In particular the 'ctx' parameter does
2431 not have to be to be initialized before the call to EVP_DigestInit() and
2432 it is tidied up after a call to EVP_DigestFinal(). New function
2433 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2434 EVP_MD_CTX_copy() changed to not require the destination to be
2435 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2436 requires the destination to be valid.
2438 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2439 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2442 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2443 so that complete 'Handshake' protocol structures are kept in memory
2444 instead of overwriting 'msg_type' and 'length' with 'body' data.
2447 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2448 [Massimo Santin via Richard Levitte]
2450 *) Major restructuring to the underlying ENGINE code. This includes
2451 reduction of linker bloat, separation of pure "ENGINE" manipulation
2452 (initialisation, etc) from functionality dealing with implementations
2453 of specific crypto iterfaces. This change also introduces integrated
2454 support for symmetric ciphers and digest implementations - so ENGINEs
2455 can now accelerate these by providing EVP_CIPHER and EVP_MD
2456 implementations of their own. This is detailed in crypto/engine/README
2457 as it couldn't be adequately described here. However, there are a few
2458 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2459 were changed in the original introduction of ENGINE code have now
2460 reverted back - the hooking from this code to ENGINE is now a good
2461 deal more passive and at run-time, operations deal directly with
2462 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2463 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2464 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2465 they were not being used by the framework as there is no concept of a
2466 BIGNUM_METHOD and they could not be generalised to the new
2467 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2468 ENGINE_cpy() has been removed as it cannot be consistently defined in
2472 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2475 *) Change mkdef.pl to sort symbols that get the same entry number,
2476 and make sure the automatically generated functions ERR_load_*
2477 become part of libeay.num as well.
2480 *) New function SSL_renegotiate_pending(). This returns true once
2481 renegotiation has been requested (either SSL_renegotiate() call
2482 or HelloRequest/ClientHello receveived from the peer) and becomes
2483 false once a handshake has been completed.
2484 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2485 sends a HelloRequest, but does not ensure that a handshake takes
2486 place. SSL_renegotiate_pending() is useful for checking if the
2487 client has followed the request.)
2490 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2491 By default, clients may request session resumption even during
2492 renegotiation (if session ID contexts permit); with this option,
2493 session resumption is possible only in the first handshake.
2495 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2496 more bits available for options that should not be part of
2497 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2500 *) Add some demos for certificate and certificate request creation.
2503 *) Make maximum certificate chain size accepted from the peer application
2504 settable (SSL*_get/set_max_cert_list()), as proposed by
2505 "Douglas E. Engert" <deengert@anl.gov>.
2508 *) Add support for shared libraries for Unixware-7
2509 (Boyd Lynn Gerber <gerberb@zenez.com>).
2512 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2513 be done prior to destruction. Use this to unload error strings from
2514 ENGINEs that load their own error strings. NB: This adds two new API
2515 functions to "get" and "set" this destroy handler in an ENGINE.
2518 *) Alter all existing ENGINE implementations (except "openssl" and
2519 "openbsd") to dynamically instantiate their own error strings. This
2520 makes them more flexible to be built both as statically-linked ENGINEs
2521 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2522 Also, add stub code to each that makes building them as self-contained
2523 shared-libraries easier (see README.ENGINE).
2526 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2527 implementations into applications that are completely implemented in
2528 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2529 commands that can be used to configure what shared-library to load and
2530 to control aspects of the way it is handled. Also, made an update to
2531 the README.ENGINE file that brings its information up-to-date and
2532 provides some information and instructions on the "dynamic" ENGINE
2533 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2536 *) Make it possible to unload ranges of ERR strings with a new
2537 "ERR_unload_strings" function.
2540 *) Add a copy() function to EVP_MD.
2543 *) Make EVP_MD routines take a context pointer instead of just the
2544 md_data void pointer.
2547 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2548 that the digest can only process a single chunk of data
2549 (typically because it is provided by a piece of
2550 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2551 is only going to provide a single chunk of data, and hence the
2552 framework needn't accumulate the data for oneshot drivers.
2555 *) As with "ERR", make it possible to replace the underlying "ex_data"
2556 functions. This change also alters the storage and management of global
2557 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2558 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2559 index counters. The API functions that use this state have been changed
2560 to take a "class_index" rather than pointers to the class's local STACK
2561 and counter, and there is now an API function to dynamically create new
2562 classes. This centralisation allows us to (a) plug a lot of the
2563 thread-safety problems that existed, and (b) makes it possible to clean
2564 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2565 such data would previously have always leaked in application code and
2566 workarounds were in place to make the memory debugging turn a blind eye
2567 to it. Application code that doesn't use this new function will still
2568 leak as before, but their memory debugging output will announce it now
2569 rather than letting it slide.
2571 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2572 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2573 has a return value to indicate success or failure.
2576 *) Make it possible to replace the underlying "ERR" functions such that the
2577 global state (2 LHASH tables and 2 locks) is only used by the "default"
2578 implementation. This change also adds two functions to "get" and "set"
2579 the implementation prior to it being automatically set the first time
2580 any other ERR function takes place. Ie. an application can call "get",
2581 pass the return value to a module it has just loaded, and that module
2582 can call its own "set" function using that value. This means the
2583 module's "ERR" operations will use (and modify) the error state in the
2584 application and not in its own statically linked copy of OpenSSL code.
2587 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2588 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2589 the operation, and provides a more encapsulated way for external code
2590 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2591 to use these functions rather than manually incrementing the counts.
2593 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2596 *) Add EVP test program.
2599 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2602 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2603 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2604 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2605 These allow a CRL to be built without having to access X509_CRL fields
2606 directly. Modify 'ca' application to use new functions.
2609 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2610 bug workarounds. Rollback attack detection is a security feature.
2611 The problem will only arise on OpenSSL servers when TLSv1 is not
2612 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2613 Software authors not wanting to support TLSv1 will have special reasons
2614 for their choice and can explicitly enable this option.
2615 [Bodo Moeller, Lutz Jaenicke]
2617 *) Rationalise EVP so it can be extended: don't include a union of
2618 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2619 (similar to those existing for EVP_CIPHER_CTX).
2624 EVP_MD_CTX_init(&md); /* new function call */
2625 EVP_DigestInit(&md, EVP_sha1());
2626 EVP_DigestUpdate(&md, in, len);
2627 EVP_DigestFinal(&md, out, NULL);
2628 EVP_MD_CTX_cleanup(&md); /* new function call */
2632 *) Make DES key schedule conform to the usual scheme, as well as
2633 correcting its structure. This means that calls to DES functions
2634 now have to pass a pointer to a des_key_schedule instead of a
2635 plain des_key_schedule (which was actually always a pointer
2638 des_key_schedule ks;
2640 des_set_key_checked(..., &ks);
2641 des_ncbc_encrypt(..., &ks, ...);
2643 (Note that a later change renames 'des_...' into 'DES_...'.)
2646 *) Initial reduction of linker bloat: the use of some functions, such as
2647 PEM causes large amounts of unused functions to be linked in due to
2648 poor organisation. For example pem_all.c contains every PEM function
2649 which has a knock on effect of linking in large amounts of (unused)
2650 ASN1 code. Grouping together similar functions and splitting unrelated
2651 functions prevents this.
2654 *) Cleanup of EVP macros.
2657 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2658 correct _ecb suffix.
2661 *) Add initial OCSP responder support to ocsp application. The
2662 revocation information is handled using the text based index
2663 use by the ca application. The responder can either handle
2664 requests generated internally, supplied in files (for example
2665 via a CGI script) or using an internal minimal server.
2668 *) Add configuration choices to get zlib compression for TLS.
2671 *) Changes to Kerberos SSL for RFC 2712 compliance:
2672 1. Implemented real KerberosWrapper, instead of just using
2673 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2674 2. Implemented optional authenticator field of KerberosWrapper.
2676 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2677 and authenticator structs; see crypto/krb5/.
2679 Generalized Kerberos calls to support multiple Kerberos libraries.
2680 [Vern Staats <staatsvr@asc.hpc.mil>,
2681 Jeffrey Altman <jaltman@columbia.edu>
2682 via Richard Levitte]
2684 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2685 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2686 values for each of the key sizes rather than having just
2687 parameters (and 'speed' generating keys each time).
2690 *) Speed up EVP routines.
2693 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2694 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2695 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2696 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2698 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2699 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2700 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2703 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2705 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2708 *) Added the OS2-EMX target.
2709 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2711 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2712 to support NCONF routines in extension code. New function CONF_set_nconf()
2713 to allow functions which take an NCONF to also handle the old LHASH
2714 structure: this means that the old CONF compatible routines can be
2715 retained (in particular wrt extensions) without having to duplicate the
2716 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2719 *) Enhance the general user interface with mechanisms for inner control
2720 and with possibilities to have yes/no kind of prompts.
2723 *) Change all calls to low level digest routines in the library and
2724 applications to use EVP. Add missing calls to HMAC_cleanup() and
2725 don't assume HMAC_CTX can be copied using memcpy().
2726 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2728 *) Add the possibility to control engines through control names but with
2729 arbitrary arguments instead of just a string.
2730 Change the key loaders to take a UI_METHOD instead of a callback
2731 function pointer. NOTE: this breaks binary compatibility with earlier
2732 versions of OpenSSL [engine].
2733 Adapt the nCipher code for these new conditions and add a card insertion
2737 *) Enhance the general user interface with mechanisms to better support
2738 dialog box interfaces, application-defined prompts, the possibility
2739 to use defaults (for example default passwords from somewhere else)
2740 and interrupts/cancellations.
2743 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2744 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2747 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2748 tidy up some unnecessarily weird code in 'sk_new()').
2749 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2751 *) Change the key loading routines for ENGINEs to use the same kind
2752 callback (pem_password_cb) as all other routines that need this
2756 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2757 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2758 than this minimum value is recommended.
2761 *) New random seeder for OpenVMS, using the system process statistics
2762 that are easily reachable.
2765 *) Windows apparently can't transparently handle global
2766 variables defined in DLLs. Initialisations such as:
2768 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2770 wont compile. This is used by the any applications that need to
2771 declare their own ASN1 modules. This was fixed by adding the option
2772 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2773 needed for static libraries under Win32.
2776 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2777 setting of purpose and trust fields. New X509_STORE trust and
2778 purpose functions and tidy up setting in other SSL functions.
2781 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2782 structure. These are inherited by X509_STORE_CTX when it is
2783 initialised. This allows various defaults to be set in the
2784 X509_STORE structure (such as flags for CRL checking and custom
2785 purpose or trust settings) for functions which only use X509_STORE_CTX
2786 internally such as S/MIME.
2788 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2789 trust settings if they are not set in X509_STORE. This allows X509_STORE
2790 purposes and trust (in S/MIME for example) to override any set by default.
2792 Add command line options for CRL checking to smime, s_client and s_server
2796 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2797 are set then the CRL is looked up in the X509_STORE structure and
2798 its validity and signature checked, then if the certificate is found
2799 in the CRL the verify fails with a revoked error.
2801 Various new CRL related callbacks added to X509_STORE_CTX structure.
2803 Command line options added to 'verify' application to support this.
2805 This needs some additional work, such as being able to handle multiple
2806 CRLs with different times, extension based lookup (rather than just
2807 by subject name) and ultimately more complete V2 CRL extension
2811 *) Add a general user interface API (crypto/ui/). This is designed
2812 to replace things like des_read_password and friends (backward
2813 compatibility functions using this new API are provided).
2814 The purpose is to remove prompting functions from the DES code
2815 section as well as provide for prompting through dialog boxes in
2816 a window system and the like.
2819 *) Add "ex_data" support to ENGINE so implementations can add state at a
2820 per-structure level rather than having to store it globally.
2823 *) Make it possible for ENGINE structures to be copied when retrieved by
2824 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2825 This causes the "original" ENGINE structure to act like a template,
2826 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2827 operational state can be localised to each ENGINE structure, despite the
2828 fact they all share the same "methods". New ENGINE structures returned in
2829 this case have no functional references and the return value is the single
2830 structural reference. This matches the single structural reference returned
2831 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2835 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2836 needs to match any other type at all we need to manually clear the
2840 *) Changes to the "openssl engine" utility to include;
2841 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2842 about an ENGINE's available control commands.
2843 - executing control commands from command line arguments using the
2844 '-pre' and '-post' switches. '-post' is only used if '-t' is
2845 specified and the ENGINE is successfully initialised. The syntax for
2846 the individual commands are colon-separated, for example;
2847 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2850 *) New dynamic control command support for ENGINEs. ENGINEs can now
2851 declare their own commands (numbers), names (strings), descriptions,
2852 and input types for run-time discovery by calling applications. A
2853 subset of these commands are implicitly classed as "executable"
2854 depending on their input type, and only these can be invoked through
2855 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2856 can be based on user input, config files, etc). The distinction is
2857 that "executable" commands cannot return anything other than a boolean
2858 result and can only support numeric or string input, whereas some
2859 discoverable commands may only be for direct use through
2860 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2861 pointers, or other custom uses. The "executable" commands are to
2862 support parameterisations of ENGINE behaviour that can be
2863 unambiguously defined by ENGINEs and used consistently across any
2864 OpenSSL-based application. Commands have been added to all the
2865 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2866 control over shared-library paths without source code alterations.
2869 *) Changed all ENGINE implementations to dynamically allocate their
2870 ENGINEs rather than declaring them statically. Apart from this being
2871 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2872 this also allows the implementations to compile without using the
2873 internal engine_int.h header.
2876 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2877 'const' value. Any code that should be able to modify a RAND_METHOD
2878 should already have non-const pointers to it (ie. they should only
2879 modify their own ones).
2882 *) Made a variety of little tweaks to the ENGINE code.
2883 - "atalla" and "ubsec" string definitions were moved from header files
2884 to C code. "nuron" string definitions were placed in variables
2885 rather than hard-coded - allowing parameterisation of these values
2886 later on via ctrl() commands.
2887 - Removed unused "#if 0"'d code.
2888 - Fixed engine list iteration code so it uses ENGINE_free() to release
2889 structural references.
2890 - Constified the RAND_METHOD element of ENGINE structures.
2891 - Constified various get/set functions as appropriate and added
2892 missing functions (including a catch-all ENGINE_cpy that duplicates
2893 all ENGINE values onto a new ENGINE except reference counts/state).
2894 - Removed NULL parameter checks in get/set functions. Setting a method
2895 or function to NULL is a way of cancelling out a previously set
2896 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2897 and doesn't justify the extra error symbols and code.
2898 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2899 flags from engine_int.h to engine.h.
2900 - Changed prototypes for ENGINE handler functions (init(), finish(),
2901 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2904 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2905 to the algorithm using long division. The binary algorithm can be
2906 used only if the modulus is odd. On 32-bit systems, it is faster
2907 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2908 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2909 up to 450 bits. In 64-bit environments, the binary algorithm
2910 appears to be advantageous for much longer moduli; here we use it
2911 for moduli up to 2048 bits.
2914 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2915 could not support the combine flag in choice fields.
2918 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2919 extensions from a certificate request to the certificate.
2922 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2923 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2924 file: this allows the display of the certificate about to be
2925 signed to be customised, to allow certain fields to be included
2926 or excluded and extension details. The old system didn't display
2927 multicharacter strings properly, omitted fields not in the policy
2928 and couldn't display additional details such as extensions.
2931 *) Function EC_POINTs_mul for multiple scalar multiplication
2932 of an arbitrary number of elliptic curve points
2933 \sum scalars[i]*points[i],
2934 optionally including the generator defined for the EC_GROUP:
2935 scalar*generator + \sum scalars[i]*points[i].
2937 EC_POINT_mul is a simple wrapper function for the typical case
2938 that the point list has just one item (besides the optional
2942 *) First EC_METHODs for curves over GF(p):
2944 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2945 operations and provides various method functions that can also
2946 operate with faster implementations of modular arithmetic.
2948 EC_GFp_mont_method() reuses most functions that are part of
2949 EC_GFp_simple_method, but uses Montgomery arithmetic.
2951 [Bodo Moeller; point addition and point doubling
2952 implementation directly derived from source code provided by
2953 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2955 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2956 crypto/ec/ec_lib.c):
2958 Curves are EC_GROUP objects (with an optional group generator)
2959 based on EC_METHODs that are built into the library.
2961 Points are EC_POINT objects based on EC_GROUP objects.
2963 Most of the framework would be able to handle curves over arbitrary
2964 finite fields, but as there are no obvious types for fields other
2965 than GF(p), some functions are limited to that for now.
2968 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2969 that the file contains a complete HTTP response.
2972 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2973 change the def and num file printf format specifier from "%-40sXXX"
2974 to "%-39s XXX". The latter will always guarantee a space after the
2975 field while the former will cause them to run together if the field
2976 is 40 of more characters long.
2979 *) Constify the cipher and digest 'method' functions and structures
2980 and modify related functions to take constant EVP_MD and EVP_CIPHER
2984 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2985 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2988 *) Modify EVP_Digest*() routines so they now return values. Although the
2989 internal software routines can never fail additional hardware versions
2993 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2995 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2996 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2999 ERR_R_NESTED_ASN1_ERROR
3001 ERR_R_MISSING_ASN1_EOS
3002 were 4 .. 9, conflicting with
3003 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3005 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3006 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3008 Add new error code 'ERR_R_INTERNAL_ERROR'.
3011 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3015 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3016 sets the subject name for a new request or supersedes the
3017 subject name in a given request. Formats that can be parsed are
3018 'CN=Some Name, OU=myOU, C=IT'
3020 'CN=Some Name/OU=myOU/C=IT'.
3022 Add options '-batch' and '-verbose' to 'openssl req'.
3023 [Massimiliano Pala <madwolf@hackmasters.net>]
3025 *) Introduce the possibility to access global variables through
3026 functions on platform were that's the best way to handle exporting
3027 global variables in shared libraries. To enable this functionality,
3028 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3029 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3030 is normally done by Configure or something similar).
3032 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3033 in the source file (foo.c) like this:
3035 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3036 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3038 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3039 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3041 OPENSSL_DECLARE_GLOBAL(int,foo);
3042 #define foo OPENSSL_GLOBAL_REF(foo)
3043 OPENSSL_DECLARE_GLOBAL(double,bar);
3044 #define bar OPENSSL_GLOBAL_REF(bar)
3046 The #defines are very important, and therefore so is including the
3047 header file everywhere where the defined globals are used.
3049 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3050 of ASN.1 items, but that structure is a bit different.
3052 The largest change is in util/mkdef.pl which has been enhanced with
3053 better and easier to understand logic to choose which symbols should
3054 go into the Windows .def files as well as a number of fixes and code
3055 cleanup (among others, algorithm keywords are now sorted
3056 lexicographically to avoid constant rewrites).
3059 *) In BN_div() keep a copy of the sign of 'num' before writing the
3060 result to 'rm' because if rm==num the value will be overwritten
3061 and produce the wrong result if 'num' is negative: this caused
3062 problems with BN_mod() and BN_nnmod().
3065 *) Function OCSP_request_verify(). This checks the signature on an
3066 OCSP request and verifies the signer certificate. The signer
3067 certificate is just checked for a generic purpose and OCSP request
3071 *) Add OCSP_check_validity() function to check the validity of OCSP
3072 responses. OCSP responses are prepared in real time and may only
3073 be a few seconds old. Simply checking that the current time lies
3074 between thisUpdate and nextUpdate max reject otherwise valid responses
3075 caused by either OCSP responder or client clock inaccuracy. Instead
3076 we allow thisUpdate and nextUpdate to fall within a certain period of
3077 the current time. The age of the response can also optionally be
3078 checked. Two new options -validity_period and -status_age added to
3082 *) If signature or public key algorithm is unrecognized print out its
3083 OID rather that just UNKNOWN.
3086 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3087 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3088 ID to be generated from the issuer certificate alone which can then be
3089 passed to OCSP_id_issuer_cmp().
3092 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3093 ASN1 modules to export functions returning ASN1_ITEM pointers
3094 instead of the ASN1_ITEM structures themselves. This adds several
3095 new macros which allow the underlying ASN1 function/structure to
3096 be accessed transparently. As a result code should not use ASN1_ITEM
3097 references directly (such as &X509_it) but instead use the relevant
3098 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3099 use of the new ASN1 code on platforms where exporting structures
3100 is problematical (for example in shared libraries) but exporting
3101 functions returning pointers to structures is not.
3104 *) Add support for overriding the generation of SSL/TLS session IDs.
3105 These callbacks can be registered either in an SSL_CTX or per SSL.
3106 The purpose of this is to allow applications to control, if they wish,
3107 the arbitrary values chosen for use as session IDs, particularly as it
3108 can be useful for session caching in multiple-server environments. A
3109 command-line switch for testing this (and any client code that wishes
3110 to use such a feature) has been added to "s_server".
3111 [Geoff Thorpe, Lutz Jaenicke]
3113 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3114 of the form '#if defined(...) || defined(...) || ...' and
3115 '#if !defined(...) && !defined(...) && ...'. This also avoids
3116 the growing number of special cases it was previously handling.
3119 *) Make all configuration macros available for application by making
3120 sure they are available in opensslconf.h, by giving them names starting
3121 with "OPENSSL_" to avoid conflicts with other packages and by making
3122 sure e_os2.h will cover all platform-specific cases together with
3124 Additionally, it is now possible to define configuration/platform-
3125 specific names (called "system identities"). In the C code, these
3126 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3127 macro with the name beginning with "OPENSSL_SYS_", which is determined
3128 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3132 *) New option -set_serial to 'req' and 'x509' this allows the serial
3133 number to use to be specified on the command line. Previously self
3134 signed certificates were hard coded with serial number 0 and the
3135 CA options of 'x509' had to use a serial number in a file which was
3139 *) New options to 'ca' utility to support V2 CRL entry extensions.
3140 Currently CRL reason, invalidity date and hold instruction are
3141 supported. Add new CRL extensions to V3 code and some new objects.
3144 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3145 disable standard block padding (aka PKCS#5 padding) in the EVP
3146 API, which was previously mandatory. This means that the data is
3147 not padded in any way and so the total length much be a multiple
3148 of the block size, otherwise an error occurs.
3151 *) Initial (incomplete) OCSP SSL support.
3154 *) New function OCSP_parse_url(). This splits up a URL into its host,
3155 port and path components: primarily to parse OCSP URLs. New -url
3156 option to ocsp utility.
3159 *) New nonce behavior. The return value of OCSP_check_nonce() now
3160 reflects the various checks performed. Applications can decide
3161 whether to tolerate certain situations such as an absent nonce
3162 in a response when one was present in a request: the ocsp application
3163 just prints out a warning. New function OCSP_add1_basic_nonce()
3164 this is to allow responders to include a nonce in a response even if
3165 the request is nonce-less.
3168 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3169 skipped when using openssl x509 multiple times on a single input file,
3170 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3173 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3174 set string type: to handle setting ASN1_TIME structures. Fix ca
3175 utility to correctly initialize revocation date of CRLs.
3178 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3179 the clients preferred ciphersuites and rather use its own preferences.
3180 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3181 Internet Explorer by ensuring unchanged hash method during stepup.
3182 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3185 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3186 to aes and add a new 'exist' option to print out symbols that don't
3190 *) Additional options to ocsp utility to allow flags to be set and
3191 additional certificates supplied.
3194 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3195 OCSP client a number of certificate to only verify the response
3199 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3200 handle the new API. Currently only ECB, CBC modes supported. Add new
3203 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3204 Encryption Standard (AES) Ciphersuites for Transport Layer
3205 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3206 not enabled by default and were not part of the "ALL" ciphersuite
3207 alias because they were not yet official; they could be
3208 explicitly requested by specifying the "AESdraft" ciphersuite
3209 group alias. In the final release of OpenSSL 0.9.7, the group
3210 alias is called "AES" and is part of "ALL".)
3211 [Ben Laurie, Steve Henson, Bodo Moeller]
3213 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3214 request to response.
3217 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3218 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3219 extract information from a certificate request. OCSP_response_create()
3220 creates a response and optionally adds a basic response structure.
3221 OCSP_basic_add1_status() adds a complete single response to a basic
3222 response and returns the OCSP_SINGLERESP structure just added (to allow
3223 extensions to be included for example). OCSP_basic_add1_cert() adds a
3224 certificate to a basic response and OCSP_basic_sign() signs a basic
3225 response with various flags. New helper functions ASN1_TIME_check()
3226 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3227 (converts ASN1_TIME to GeneralizedTime).
3230 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3231 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3232 structure from a certificate. X509_pubkey_digest() digests the public_key
3233 contents: this is used in various key identifiers.
3236 *) Make sk_sort() tolerate a NULL argument.
3237 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3239 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3240 passed by the function are trusted implicitly. If any of them signed the
3241 response then it is assumed to be valid and is not verified.
3244 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3245 to data. This was previously part of the PKCS7 ASN1 code. This
3246 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3247 [Steve Henson, reported by Kenneth R. Robinette
3248 <support@securenetterm.com>]
3250 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3251 routines: without these tracing memory leaks is very painful.
3252 Fix leaks in PKCS12 and PKCS7 routines.
3255 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3256 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3257 effectively meant GeneralizedTime would never be used. Now it
3258 is initialised to -1 but X509_time_adj() now has to check the value
3259 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3260 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3261 [Steve Henson, reported by Kenneth R. Robinette
3262 <support@securenetterm.com>]
3264 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3265 result in a zero length in the ASN1_INTEGER structure which was
3266 not consistent with the structure when d2i_ASN1_INTEGER() was used
3267 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3268 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3269 where it did not print out a minus for negative ASN1_INTEGER.
3272 *) Add summary printout to ocsp utility. The various functions which
3273 convert status values to strings have been renamed to:
3274 OCSP_response_status_str(), OCSP_cert_status_str() and
3275 OCSP_crl_reason_str() and are no longer static. New options
3276 to verify nonce values and to disable verification. OCSP response
3277 printout format cleaned up.
3280 *) Add additional OCSP certificate checks. These are those specified
3281 in RFC2560. This consists of two separate checks: the CA of the
3282 certificate being checked must either be the OCSP signer certificate
3283 or the issuer of the OCSP signer certificate. In the latter case the
3284 OCSP signer certificate must contain the OCSP signing extended key
3285 usage. This check is performed by attempting to match the OCSP
3286 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3287 in the OCSP_CERTID structures of the response.
3290 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3291 and related routines. This uses the standard OpenSSL certificate
3292 verify routines to perform initial checks (just CA validity) and
3293 to obtain the certificate chain. Then additional checks will be
3294 performed on the chain. Currently the root CA is checked to see
3295 if it is explicitly trusted for OCSP signing. This is used to set
3296 a root CA as a global signing root: that is any certificate that
3297 chains to that CA is an acceptable OCSP signing certificate.
3300 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3301 extensions from a separate configuration file.
3302 As when reading extensions from the main configuration file,
3303 the '-extensions ...' option may be used for specifying the
3305 [Massimiliano Pala <madwolf@comune.modena.it>]
3307 *) New OCSP utility. Allows OCSP requests to be generated or
3308 read. The request can be sent to a responder and the output
3309 parsed, outputed or printed in text form. Not complete yet:
3310 still needs to check the OCSP response validity.
3313 *) New subcommands for 'openssl ca':
3314 'openssl ca -status <serial>' prints the status of the cert with
3315 the given serial number (according to the index file).
3316 'openssl ca -updatedb' updates the expiry status of certificates
3318 [Massimiliano Pala <madwolf@comune.modena.it>]
3320 *) New '-newreq-nodes' command option to CA.pl. This is like
3321 '-newreq', but calls 'openssl req' with the '-nodes' option
3322 so that the resulting key is not encrypted.
3323 [Damien Miller <djm@mindrot.org>]
3325 *) New configuration for the GNU Hurd.
3326 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3328 *) Initial code to implement OCSP basic response verify. This
3329 is currently incomplete. Currently just finds the signer's
3330 certificate and verifies the signature on the response.
3333 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3334 value of OPENSSLDIR. This is available via the new '-d' option
3335 to 'openssl version', and is also included in 'openssl version -a'.
3338 *) Allowing defining memory allocation callbacks that will be given
3339 file name and line number information in additional arguments
3340 (a const char* and an int). The basic functionality remains, as
3341 well as the original possibility to just replace malloc(),
3342 realloc() and free() by functions that do not know about these
3343 additional arguments. To register and find out the current
3344 settings for extended allocation functions, the following
3345 functions are provided:
3347 CRYPTO_set_mem_ex_functions
3348 CRYPTO_set_locked_mem_ex_functions
3349 CRYPTO_get_mem_ex_functions
3350 CRYPTO_get_locked_mem_ex_functions
3352 These work the same way as CRYPTO_set_mem_functions and friends.
3353 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3354 extended allocation function is enabled.
3355 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3356 a conventional allocation function is enabled.
3357 [Richard Levitte, Bodo Moeller]
3359 *) Finish off removing the remaining LHASH function pointer casts.
3360 There should no longer be any prototype-casting required when using
3361 the LHASH abstraction, and any casts that remain are "bugs". See
3362 the callback types and macros at the head of lhash.h for details
3363 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3366 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3367 If /dev/[u]random devices are not available or do not return enough
3368 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3370 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3371 /etc/entropy will be queried once each in this sequence, quering stops
3372 when enough entropy was collected without querying more sockets.
3375 *) Change the Unix RAND_poll() variant to be able to poll several
3376 random devices, as specified by DEVRANDOM, until a sufficient amount
3377 of data has been collected. We spend at most 10 ms on each file
3378 (select timeout) and read in non-blocking mode. DEVRANDOM now
3379 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3380 (previously it was just the string "/dev/urandom"), so on typical
3381 platforms the 10 ms delay will never occur.
3382 Also separate out the Unix variant to its own file, rand_unix.c.
3383 For VMS, there's a currently-empty rand_vms.c.
3386 *) Move OCSP client related routines to ocsp_cl.c. These
3387 provide utility functions which an application needing
3388 to issue a request to an OCSP responder and analyse the
3389 response will typically need: as opposed to those which an
3390 OCSP responder itself would need which will be added later.
3392 OCSP_request_sign() signs an OCSP request with an API similar
3393 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3394 response. OCSP_response_get1_basic() extracts basic response
3395 from response. OCSP_resp_find_status(): finds and extracts status
3396 information from an OCSP_CERTID structure (which will be created
3397 when the request structure is built). These are built from lower
3398 level functions which work on OCSP_SINGLERESP structures but
3399 wont normally be used unless the application wishes to examine
3400 extensions in the OCSP response for example.
3402 Replace nonce routines with a pair of functions.
3403 OCSP_request_add1_nonce() adds a nonce value and optionally
3404 generates a random value. OCSP_check_nonce() checks the
3405 validity of the nonce in an OCSP response.
3408 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3409 This doesn't copy the supplied OCSP_CERTID and avoids the
3410 need to free up the newly created id. Change return type
3411 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3412 This can then be used to add extensions to the request.
3413 Deleted OCSP_request_new(), since most of its functionality
3414 is now in OCSP_REQUEST_new() (and the case insensitive name
3415 clash) apart from the ability to set the request name which
3416 will be added elsewhere.
3419 *) Update OCSP API. Remove obsolete extensions argument from
3420 various functions. Extensions are now handled using the new
3421 OCSP extension code. New simple OCSP HTTP function which
3422 can be used to send requests and parse the response.
3425 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3426 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3427 uses the special reorder version of SET OF to sort the attributes
3428 and reorder them to match the encoded order. This resolves a long
3429 standing problem: a verify on a PKCS7 structure just after signing
3430 it used to fail because the attribute order did not match the
3431 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3432 it uses the received order. This is necessary to tolerate some broken
3433 software that does not order SET OF. This is handled by encoding
3434 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3435 to produce the required SET OF.
3438 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3439 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3440 files to get correct declarations of the ASN.1 item variables.
3443 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3444 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3445 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3446 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3447 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3448 ASN1_ITEM and no wrapper functions.
3451 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3452 replace the old function pointer based I/O routines. Change most of
3453 the *_d2i_bio() and *_d2i_fp() functions to use these.
3456 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3457 lines, recognice more "algorithms" that can be deselected, and make
3458 it complain about algorithm deselection that isn't recognised.
3461 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3462 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3463 to use new functions. Add NO_ASN1_OLD which can be set to remove
3464 some old style ASN1 functions: this can be used to determine if old
3465 code will still work when these eventually go away.
3468 *) New extension functions for OCSP structures, these follow the
3469 same conventions as certificates and CRLs.
3472 *) New function X509V3_add1_i2d(). This automatically encodes and
3473 adds an extension. Its behaviour can be customised with various
3474 flags to append, replace or delete. Various wrappers added for
3475 certifcates and CRLs.
3478 *) Fix to avoid calling the underlying ASN1 print routine when
3479 an extension cannot be parsed. Correct a typo in the
3480 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3483 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3484 entries for variables.
3487 *) Add functionality to apps/openssl.c for detecting locking
3488 problems: As the program is single-threaded, all we have
3489 to do is register a locking callback using an array for
3490 storing which locks are currently held by the program.
3493 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3494 SSL_get_ex_data_X509_STORE_idx(), which is used in
3495 ssl_verify_cert_chain() and thus can be called at any time
3496 during TLS/SSL handshakes so that thread-safety is essential.
3497 Unfortunately, the ex_data design is not at all suited
3498 for multi-threaded use, so it probably should be abolished.
3501 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3502 [Broadcom, tweaked and integrated by Geoff Thorpe]
3504 *) Move common extension printing code to new function
3505 X509V3_print_extensions(). Reorganise OCSP print routines and
3506 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3509 *) New function X509_signature_print() to remove duplication in some
3513 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3514 set (this was treated exactly the same as SET OF previously). This
3515 is used to reorder the STACK representing the structure to match the
3516 encoding. This will be used to get round a problem where a PKCS7
3517 structure which was signed could not be verified because the STACK
3518 order did not reflect the encoded order.
3521 *) Reimplement the OCSP ASN1 module using the new code.
3524 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3525 for its ASN1 operations. The old style function pointers still exist
3526 for now but they will eventually go away.
3529 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3530 completely replaces the old ASN1 functionality with a table driven
3531 encoder and decoder which interprets an ASN1_ITEM structure describing
3532 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3533 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3534 has also been converted to the new form.
3537 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3538 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3539 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3540 for negative moduli.
3543 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3544 of not touching the result's sign bit.
3547 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3551 *) Changed the LHASH code to use prototypes for callbacks, and created
3552 macros to declare and implement thin (optionally static) functions
3553 that provide type-safety and avoid function pointer casting for the
3554 type-specific callbacks.
3557 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3559 [Veers Staats <staatsvr@asc.hpc.mil>,
3560 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3562 *) Reformat the FAQ so the different questions and answers can be divided
3563 in sections depending on the subject.
3566 *) Have the zlib compression code load ZLIB.DLL dynamically under
3570 *) New function BN_mod_sqrt for computing square roots modulo a prime
3571 (using the probabilistic Tonelli-Shanks algorithm unless
3572 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3573 be handled deterministically).
3574 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3576 *) Make BN_mod_inverse faster by explicitly handling small quotients
3577 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3578 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3581 *) New function BN_kronecker.
3584 *) Fix BN_gcd so that it works on negative inputs; the result is
3585 positive unless both parameters are zero.
3586 Previously something reasonably close to an infinite loop was
3587 possible because numbers could be growing instead of shrinking
3588 in the implementation of Euclid's algorithm.
3591 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3592 sign of the number in question.
3594 Fix BN_is_word(a,w) to work correctly for w == 0.
3596 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3597 because its test if the absolute value of 'a' equals 'w'.
3598 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3599 it exists mostly for use in the implementations of BN_is_zero(),
3600 BN_is_one(), and BN_is_word().
3603 *) New function BN_swap.
3606 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3607 the exponentiation functions are more likely to produce reasonable
3608 results on negative inputs.
3611 *) Change BN_mod_mul so that the result is always non-negative.
3612 Previously, it could be negative if one of the factors was negative;
3613 I don't think anyone really wanted that behaviour.
3616 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3617 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3618 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3619 and add new functions:
3628 BN_mod_lshift1_quick
3632 These functions always generate non-negative results.
3634 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3635 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3637 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3638 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3639 be reduced modulo m.
3640 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3643 The following entry accidentily appeared in the CHANGES file
3644 distributed with OpenSSL 0.9.7. The modifications described in
3645 it do *not* apply to OpenSSL 0.9.7.
3647 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3648 was actually never needed) and in BN_mul(). The removal in BN_mul()
3649 required a small change in bn_mul_part_recursive() and the addition
3650 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3651 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3652 bn_sub_words() and bn_add_words() except they take arrays with
3657 *) In 'openssl passwd', verify passwords read from the terminal
3658 unless the '-salt' option is used (which usually means that
3659 verification would just waste user's time since the resulting
3660 hash is going to be compared with some given password hash)
3661 or the new '-noverify' option is used.
3663 This is an incompatible change, but it does not affect
3664 non-interactive use of 'openssl passwd' (passwords on the command
3665 line, '-stdin' option, '-in ...' option) and thus should not
3669 *) Remove all references to RSAref, since there's no more need for it.
3672 *) Make DSO load along a path given through an environment variable
3673 (SHLIB_PATH) with shl_load().
3676 *) Constify the ENGINE code as a result of BIGNUM constification.
3677 Also constify the RSA code and most things related to it. In a
3678 few places, most notable in the depth of the ASN.1 code, ugly
3679 casts back to non-const were required (to be solved at a later
3683 *) Make it so the openssl application has all engines loaded by default.
3686 *) Constify the BIGNUM routines a little more.
3689 *) Add the following functions:
3691 ENGINE_load_cswift()
3693 ENGINE_load_atalla()
3695 ENGINE_load_builtin_engines()
3697 That way, an application can itself choose if external engines that
3698 are built-in in OpenSSL shall ever be used or not. The benefit is
3699 that applications won't have to be linked with libdl or other dso
3700 libraries unless it's really needed.
3702 Changed 'openssl engine' to load all engines on demand.
3703 Changed the engine header files to avoid the duplication of some
3704 declarations (they differed!).
3707 *) 'openssl engine' can now list capabilities.
3710 *) Better error reporting in 'openssl engine'.
3713 *) Never call load_dh_param(NULL) in s_server.
3716 *) Add engine application. It can currently list engines by name and
3717 identity, and test if they are actually available.
3720 *) Improve RPM specification file by forcing symbolic linking and making
3721 sure the installed documentation is also owned by root.root.
3722 [Damien Miller <djm@mindrot.org>]
3724 *) Give the OpenSSL applications more possibilities to make use of
3725 keys (public as well as private) handled by engines.
3728 *) Add OCSP code that comes from CertCo.
3731 *) Add VMS support for the Rijndael code.
3734 *) Added untested support for Nuron crypto accelerator.
3737 *) Add support for external cryptographic devices. This code was
3738 previously distributed separately as the "engine" branch.
3739 [Geoff Thorpe, Richard Levitte]
3741 *) Rework the filename-translation in the DSO code. It is now possible to
3742 have far greater control over how a "name" is turned into a filename
3743 depending on the operating environment and any oddities about the
3744 different shared library filenames on each system.
3747 *) Support threads on FreeBSD-elf in Configure.
3750 *) Fix for SHA1 assembly problem with MASM: it produces
3751 warnings about corrupt line number information when assembling
3752 with debugging information. This is caused by the overlapping
3754 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3757 NCONF_get_number() has no error checking at all. As a replacement,
3758 NCONF_get_number_e() is defined (_e for "error checking") and is
3759 promoted strongly. The old NCONF_get_number is kept around for
3760 binary backward compatibility.
3761 Make it possible for methods to load from something other than a BIO,
3762 by providing a function pointer that is given a name instead of a BIO.
3763 For example, this could be used to load configuration data from an
3767 *) Fix for non blocking accept BIOs. Added new I/O special reason
3768 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3769 with non blocking I/O was not possible because no retry code was
3770 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3774 *) Added the beginnings of Rijndael support.
3777 *) Fix for bug in DirectoryString mask setting. Add support for
3778 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3779 to allow certificate printing to more controllable, additional
3780 'certopt' option to 'x509' to allow new printing options to be
3784 *) Clean old EAY MD5 hack from e_os.h.
3787 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3789 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3790 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3791 [Joe Orton, Steve Henson]
3793 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3795 *) Fix additional bug revealed by the NISCC test suite:
3797 Stop bug triggering large recursion when presented with
3798 certain ASN.1 tags (CVE-2003-0851)
3801 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3803 *) Fix various bugs revealed by running the NISCC test suite:
3805 Stop out of bounds reads in the ASN1 code when presented with
3806 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3808 If verify callback ignores invalid public key errors don't try to check
3809 certificate signature with the NULL public key.
3813 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3814 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3818 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3819 extra data after the compression methods not only for TLS 1.0
3820 but also for SSL 3.0 (as required by the specification).
3821 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3823 *) Change X509_certificate_type() to mark the key as exported/exportable
3824 when it's 512 *bits* long, not 512 bytes.
3827 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3829 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3830 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3831 a protocol version number mismatch like a decryption error
3832 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3835 *) Turn on RSA blinding by default in the default implementation
3836 to avoid a timing attack. Applications that don't want it can call
3837 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3838 They would be ill-advised to do so in most cases.
3839 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3841 *) Change RSA blinding code so that it works when the PRNG is not
3842 seeded (in this case, the secret RSA exponent is abused as
3843 an unpredictable seed -- if it is not unpredictable, there
3844 is no point in blinding anyway). Make RSA blinding thread-safe
3845 by remembering the creator's thread ID in rsa->blinding and
3846 having all other threads use local one-time blinding factors
3847 (this requires more computation than sharing rsa->blinding, but
3848 avoids excessive locking; and if an RSA object is not shared
3849 between threads, blinding will still be very fast).
3852 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3854 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3855 via timing by performing a MAC computation even if incorrrect
3856 block cipher padding has been found. This is a countermeasure
3857 against active attacks where the attacker has to distinguish
3858 between bad padding and a MAC verification error. (CVE-2003-0078)
3860 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3861 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3862 Martin Vuagnoux (EPFL, Ilion)]
3864 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3866 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3867 memory from it's contents. This is done with a counter that will
3868 place alternating values in each byte. This can be used to solve
3869 two issues: 1) the removal of calls to memset() by highly optimizing
3870 compilers, and 2) cleansing with other values than 0, since those can
3871 be read through on certain media, for example a swap space on disk.
3874 *) Bugfix: client side session caching did not work with external caching,
3875 because the session->cipher setting was not restored when reloading
3876 from the external cache. This problem was masked, when
3877 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3878 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3881 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3882 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3883 [Zeev Lieber <zeev-l@yahoo.com>]
3885 *) Undo an undocumented change introduced in 0.9.6e which caused
3886 repeated calls to OpenSSL_add_all_ciphers() and
3887 OpenSSL_add_all_digests() to be ignored, even after calling
3891 *) Change the default configuration reader to deal with last line not
3892 being properly terminated.
3895 *) Change X509_NAME_cmp() so it applies the special rules on handling
3896 DN values that are of type PrintableString, as well as RDNs of type
3897 emailAddress where the value has the type ia5String.
3898 [stefank@valicert.com via Richard Levitte]
3900 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3901 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3902 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3903 the bitwise-OR of the two for use by the majority of applications
3904 wanting this behaviour, and update the docs. The documented
3905 behaviour and actual behaviour were inconsistent and had been
3906 changing anyway, so this is more a bug-fix than a behavioural
3908 [Geoff Thorpe, diagnosed by Nadav Har'El]
3910 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3911 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3914 *) Fix initialization code race conditions in
3915 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3916 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3917 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3918 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3919 ssl2_get_cipher_by_char(),
3920 ssl3_get_cipher_by_char().
3921 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3923 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3924 the cached sessions are flushed, as the remove_cb() might use ex_data
3925 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3926 (see [openssl.org #212]).
3927 [Geoff Thorpe, Lutz Jaenicke]
3929 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3930 length, instead of the encoding length to d2i_ASN1_OBJECT.
3933 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3935 *) [In 0.9.6g-engine release:]
3936 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3937 [Lynn Gazis <lgazis@rainbow.com>]
3939 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3941 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3942 and get fix the header length calculation.
3943 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3944 Alon Kantor <alonk@checkpoint.com> (and others),
3947 *) Use proper error handling instead of 'assertions' in buffer
3948 overflow checks added in 0.9.6e. This prevents DoS (the
3949 assertions could call abort()).
3950 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3952 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3954 *) Add various sanity checks to asn1_get_length() to reject
3955 the ASN1 length bytes if they exceed sizeof(long), will appear
3956 negative or the content length exceeds the length of the
3958 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3960 *) Fix cipher selection routines: ciphers without encryption had no flags
3961 for the cipher strength set and where therefore not handled correctly
3962 by the selection routines (PR #130).
3965 *) Fix EVP_dsa_sha macro.
3969 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3970 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3971 that was added in OpenSSL 0.9.6d.
3973 As the countermeasure turned out to be incompatible with some
3974 broken SSL implementations, the new option is part of SSL_OP_ALL.
3975 SSL_OP_ALL is usually employed when compatibility with weird SSL
3976 implementations is desired (e.g. '-bugs' option to 's_client' and
3977 's_server'), so the new option is automatically set in many
3981 *) Changes in security patch:
3983 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3984 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3985 Air Force Materiel Command, USAF, under agreement number
3988 *) Add various sanity checks to asn1_get_length() to reject
3989 the ASN1 length bytes if they exceed sizeof(long), will appear
3990 negative or the content length exceeds the length of the
3991 supplied buffer. (CVE-2002-0659)
3992 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3994 *) Assertions for various potential buffer overflows, not known to
3996 [Ben Laurie (CHATS)]
3998 *) Various temporary buffers to hold ASCII versions of integers were
3999 too small for 64 bit platforms. (CVE-2002-0655)
4000 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4002 *) Remote buffer overflow in SSL3 protocol - an attacker could
4003 supply an oversized session ID to a client. (CVE-2002-0656)
4004 [Ben Laurie (CHATS)]
4006 *) Remote buffer overflow in SSL2 protocol - an attacker could
4007 supply an oversized client master key. (CVE-2002-0656)
4008 [Ben Laurie (CHATS)]
4010 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4012 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4013 encoded as NULL) with id-dsa-with-sha1.
4014 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4016 *) Check various X509_...() return values in apps/req.c.
4017 [Nils Larsch <nla@trustcenter.de>]
4019 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4020 an end-of-file condition would erronously be flagged, when the CRLF
4021 was just at the end of a processed block. The bug was discovered when
4022 processing data through a buffering memory BIO handing the data to a
4023 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4024 <ptsekov@syntrex.com> and Nedelcho Stanev.
4027 *) Implement a countermeasure against a vulnerability recently found
4028 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4029 before application data chunks to avoid the use of known IVs
4030 with data potentially chosen by the attacker.
4033 *) Fix length checks in ssl3_get_client_hello().
4036 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4037 to prevent ssl3_read_internal() from incorrectly assuming that
4038 ssl3_read_bytes() found application data while handshake
4039 processing was enabled when in fact s->s3->in_read_app_data was
4040 merely automatically cleared during the initial handshake.
4041 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4043 *) Fix object definitions for Private and Enterprise: they were not
4044 recognized in their shortname (=lowercase) representation. Extend
4045 obj_dat.pl to issue an error when using undefined keywords instead
4046 of silently ignoring the problem (Svenning Sorensen
4047 <sss@sss.dnsalias.net>).
4050 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4051 generators, i.e. generators other than 2 and 5. (Previously, the
4052 code did not properly initialise the 'add' and 'rem' values to
4053 BN_generate_prime().)
4055 In the new general case, we do not insist that 'generator' is
4056 actually a primitive root: This requirement is rather pointless;
4057 a generator of the order-q subgroup is just as good, if not
4061 *) Map new X509 verification errors to alerts. Discovered and submitted by
4062 Tom Wu <tom@arcot.com>.
4065 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4066 returning non-zero before the data has been completely received
4067 when using non-blocking I/O.
4068 [Bodo Moeller; problem pointed out by John Hughes]
4070 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4071 [Ben Laurie, Lutz Jaenicke]
4073 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4074 Yoram Zahavi <YoramZ@gilian.com>).
4077 *) Add information about CygWin 1.3 and on, and preserve proper
4078 configuration for the versions before that.
4079 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4081 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4082 check whether we deal with a copy of a session and do not delete from
4083 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4084 <izhar@checkpoint.com>.
4087 *) Do not store session data into the internal session cache, if it
4088 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4089 flag is set). Proposed by Aslam <aslam@funk.com>.
4092 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4096 *) [In 0.9.6d-engine release:]
4097 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4098 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4100 *) Add the configuration target linux-s390x.
4101 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4103 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4104 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4105 variable as an indication that a ClientHello message has been
4106 received. As the flag value will be lost between multiple
4107 invocations of ssl3_accept when using non-blocking I/O, the
4108 function may not be aware that a handshake has actually taken
4109 place, thus preventing a new session from being added to the
4112 To avoid this problem, we now set s->new_session to 2 instead of
4113 using a local variable.
4114 [Lutz Jaenicke, Bodo Moeller]
4116 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4117 if the SSL_R_LENGTH_MISMATCH error is detected.
4118 [Geoff Thorpe, Bodo Moeller]
4120 *) New 'shared_ldflag' column in Configure platform table.
4123 *) Fix EVP_CIPHER_mode macro.
4124 ["Dan S. Camper" <dan@bti.net>]
4126 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4127 type, we must throw them away by setting rr->length to 0.
4128 [D P Chang <dpc@qualys.com>]
4130 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4132 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4133 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4134 worked incorrectly for those cases where range = 10..._2 and
4135 3*range is two bits longer than range.)
4138 *) Only add signing time to PKCS7 structures if it is not already
4142 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4143 OBJ_ld_ce should be OBJ_id_ce.
4144 Also some ip-pda OIDs in crypto/objects/objects.txt were
4145 incorrect (cf. RFC 3039).
4146 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4148 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4149 returns early because it has nothing to do.
4150 [Andy Schneider <andy.schneider@bjss.co.uk>]
4152 *) [In 0.9.6c-engine release:]
4153 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4154 [Andy Schneider <andy.schneider@bjss.co.uk>]
4156 *) [In 0.9.6c-engine release:]
4157 Add support for Cryptographic Appliance's keyserver technology.
4158 (Use engine 'keyclient')
4159 [Cryptographic Appliances and Geoff Thorpe]
4161 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4162 is called via tools/c89.sh because arguments have to be
4163 rearranged (all '-L' options must appear before the first object
4165 [Richard Shapiro <rshapiro@abinitio.com>]
4167 *) [In 0.9.6c-engine release:]
4168 Add support for Broadcom crypto accelerator cards, backported
4170 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4172 *) [In 0.9.6c-engine release:]
4173 Add support for SureWare crypto accelerator cards from
4174 Baltimore Technologies. (Use engine 'sureware')
4175 [Baltimore Technologies and Mark Cox]
4177 *) [In 0.9.6c-engine release:]
4178 Add support for crypto accelerator cards from Accelerated
4179 Encryption Processing, www.aep.ie. (Use engine 'aep')
4180 [AEP Inc. and Mark Cox]
4182 *) Add a configuration entry for gcc on UnixWare.
4183 [Gary Benson <gbenson@redhat.com>]
4185 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4186 messages are stored in a single piece (fixed-length part and
4187 variable-length part combined) and fix various bugs found on the way.
4190 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4191 instead. BIO_gethostbyname() does not know what timeouts are
4192 appropriate, so entries would stay in cache even when they have
4194 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4196 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4197 faced with a pathologically small ClientHello fragment that does
4198 not contain client_version: Instead of aborting with an error,
4199 simply choose the highest available protocol version (i.e.,
4200 TLS 1.0 unless it is disabled). In practice, ClientHello
4201 messages are never sent like this, but this change gives us
4202 strictly correct behaviour at least for TLS.
4205 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4206 never resets s->method to s->ctx->method when called from within
4207 one of the SSL handshake functions.
4208 [Bodo Moeller; problem pointed out by Niko Baric]
4210 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4211 (sent using the client's version number) if client_version is
4212 smaller than the protocol version in use. Also change
4213 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4214 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4215 the client will at least see that alert.
4218 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4222 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4223 client receives HelloRequest while in a handshake.
4224 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4226 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4227 should end in 'break', not 'goto end' which circuments various
4228 cleanups done in state SSL_ST_OK. But session related stuff
4229 must be disabled for SSL_ST_OK in the case that we just sent a
4232 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4233 before just sending a HelloRequest.
4234 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4236 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4237 reveal whether illegal block cipher padding was found or a MAC
4238 verification error occured. (Neither SSLerr() codes nor alerts
4239 are directly visible to potential attackers, but the information
4240 may leak via logfiles.)
4242 Similar changes are not required for the SSL 2.0 implementation
4243 because the number of padding bytes is sent in clear for SSL 2.0,
4244 and the extra bytes are just ignored. However ssl/s2_pkt.c
4245 failed to verify that the purported number of padding bytes is in
4249 *) Add OpenUNIX-8 support including shared libraries
4250 (Boyd Lynn Gerber <gerberb@zenez.com>).
4253 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4254 'wristwatch attack' using huge encoding parameters (cf.
4255 James H. Manger's CRYPTO 2001 paper). Note that the
4256 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4257 encoding parameters and hence was not vulnerable.
4260 *) BN_sqr() bug fix.
4261 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4263 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4264 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4265 followed by modular reduction.
4266 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4268 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4269 equivalent based on BN_pseudo_rand() instead of BN_rand().
4272 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4273 This function was broken, as the check for a new client hello message
4274 to handle SGC did not allow these large messages.
4275 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4278 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4281 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4282 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4285 *) Rework the configuration and shared library support for Tru64 Unix.
4286 The configuration part makes use of modern compiler features and
4287 still retains old compiler behavior for those that run older versions
4288 of the OS. The shared library support part includes a variant that
4289 uses the RPATH feature, and is available through the special
4290 configuration target "alpha-cc-rpath", which will never be selected
4292 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4294 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4295 with the same message size as in ssl3_get_certificate_request().
4296 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4297 messages might inadvertently be reject as too long.
4298 [Petr Lampa <lampa@fee.vutbr.cz>]
4300 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4303 *) Modified SSL library such that the verify_callback that has been set
4304 specificly for an SSL object with SSL_set_verify() is actually being
4305 used. Before the change, a verify_callback set with this function was
4306 ignored and the verify_callback() set in the SSL_CTX at the time of
4307 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4308 to allow the necessary settings.
4311 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4312 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4313 done automatically (in contradiction to the requirements of the C
4314 standard). This made problems when used from OpenSSH.
4317 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4318 dh->length and always used
4320 BN_rand_range(priv_key, dh->p).
4322 BN_rand_range() is not necessary for Diffie-Hellman, and this
4323 specific range makes Diffie-Hellman unnecessarily inefficient if
4324 dh->length (recommended exponent length) is much smaller than the
4325 length of dh->p. We could use BN_rand_range() if the order of
4326 the subgroup was stored in the DH structure, but we only have
4331 BN_rand(priv_key, l, ...)
4333 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4339 RSA_eay_public_encrypt
4340 RSA_eay_private_decrypt
4341 RSA_eay_private_encrypt (signing)
4342 RSA_eay_public_decrypt (signature verification)
4344 (default implementations for RSA_public_encrypt,
4345 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4346 always reject numbers >= n.
4349 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4350 to synchronize access to 'locking_thread'. This is necessary on
4351 systems where access to 'locking_thread' (an 'unsigned long'
4352 variable) is not atomic.
4355 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4356 *before* setting the 'crypto_lock_rand' flag. The previous code had
4357 a race condition if 0 is a valid thread ID.
4358 [Travis Vitek <vitek@roguewave.com>]
4360 *) Add support for shared libraries under Irix.
4361 [Albert Chin-A-Young <china@thewrittenword.com>]
4363 *) Add configuration option to build on Linux on both big-endian and
4365 [Ralf Baechle <ralf@uni-koblenz.de>]
4367 *) Add the possibility to create shared libraries on HP-UX.
4370 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4372 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4373 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4374 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4375 PRNG state recovery was possible based on the output of
4376 one PRNG request appropriately sized to gain knowledge on
4377 'md' followed by enough consecutive 1-byte PRNG requests
4378 to traverse all of 'state'.
4380 1. When updating 'md_local' (the current thread's copy of 'md')
4381 during PRNG output generation, hash all of the previous
4382 'md_local' value, not just the half used for PRNG output.
4384 2. Make the number of bytes from 'state' included into the hash
4385 independent from the number of PRNG bytes requested.
4387 The first measure alone would be sufficient to avoid
4388 Markku-Juhani's attack. (Actually it had never occurred
4389 to me that the half of 'md_local' used for chaining was the
4390 half from which PRNG output bytes were taken -- I had always
4391 assumed that the secret half would be used.) The second
4392 measure makes sure that additional data from 'state' is never
4393 mixed into 'md_local' in small portions; this heuristically
4394 further strengthens the PRNG.
4397 *) Fix crypto/bn/asm/mips3.s.
4400 *) When only the key is given to "enc", the IV is undefined. Print out
4401 an error message in this case.
4404 *) Handle special case when X509_NAME is empty in X509 printing routines.
4407 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4408 positive and less than q.
4411 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4412 used: it isn't thread safe and the add_lock_callback should handle
4414 [Paul Rose <Paul.Rose@bridge.com>]
4416 *) Verify that incoming data obeys the block size in
4417 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4421 [Ulf Möller, Bodo Möller]
4423 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4424 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4425 when fixing the server behaviour for backwards-compatible 'client
4426 hello' messages. (Note that the attack is impractical against
4427 SSL 3.0 and TLS 1.0 anyway because length and version checking
4428 means that the probability of guessing a valid ciphertext is
4429 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4432 Before 0.9.5, the countermeasure (hide the error by generating a
4433 random 'decryption result') did not work properly because
4434 ERR_clear_error() was missing, meaning that SSL_get_error() would
4435 detect the supposedly ignored error.
4437 Both problems are now fixed.
4440 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4441 (previously it was 1024).
4444 *) Fix for compatibility mode trust settings: ignore trust settings
4445 unless some valid trust or reject settings are present.
4448 *) Fix for blowfish EVP: its a variable length cipher.
4451 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4452 parameters in DSA public key structures and return an error in the
4453 DSA routines if parameters are absent.
4456 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4457 in the current directory if neither $RANDFILE nor $HOME was set.
4458 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4459 caused some confusion to Windows users who haven't defined $HOME.
4460 Thus RAND_file_name() is changed again: e_os.h can define a
4461 DEFAULT_HOME, which will be used if $HOME is not set.
4462 For Windows, we use "C:"; on other platforms, we still require
4463 environment variables.
4465 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4466 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4467 having multiple threads call RAND_poll() concurrently.
4470 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4471 combination of a flag and a thread ID variable.
4472 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4473 flag), *other* threads can enter ssleay_add_bytes without obeying
4474 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4475 that they do not hold after the first thread unsets add_do_not_lock).
4478 *) Change bctest again: '-x' expressions are not available in all
4482 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4484 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4485 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4487 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4488 the default extension for executables, if any. Also, make the perl
4489 scripts that use symlink() to test if it really exists and use "cp"
4490 if it doesn't. All this made OpenSSL compilable and installable in
4494 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4495 If SEQUENCE is length is indefinite just set c->slen to the total
4496 amount of data available.
4497 [Steve Henson, reported by shige@FreeBSD.org]
4498 [This change does not apply to 0.9.7.]
4500 *) Change bctest to avoid here-documents inside command substitution
4501 (workaround for FreeBSD /bin/sh bug).
4502 For compatibility with Ultrix, avoid shell functions (introduced
4503 in the bctest version that searches along $PATH).
4506 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4507 with des_encrypt() defined on some operating systems, like Solaris
4511 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4512 On the Importance of Eliminating Errors in Cryptographic
4513 Computations, J. Cryptology 14 (2001) 2, 101-119,
4514 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4517 *) MIPS assembler BIGNUM division bug fix.
4520 *) Disabled incorrect Alpha assembler code.
4523 *) Fix PKCS#7 decode routines so they correctly update the length
4524 after reading an EOC for the EXPLICIT tag.
4526 [This change does not apply to 0.9.7.]
4528 *) Fix bug in PKCS#12 key generation routines. This was triggered
4529 if a 3DES key was generated with a 0 initial byte. Include
4530 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4531 (but broken) behaviour.
4534 *) Enhance bctest to search for a working bc along $PATH and print
4536 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4538 *) Fix memory leaks in err.c: free err_data string if necessary;
4539 don't write to the wrong index in ERR_set_error_data.
4542 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4546 *) Replace rdtsc with _emit statements for VC++ version 5.
4547 [Jeremy Cooper <jeremy@baymoo.org>]
4549 *) Make it possible to reuse SSLv2 sessions.
4552 *) In copy_email() check for >= 0 as a return value for
4553 X509_NAME_get_index_by_NID() since 0 is a valid index.
4554 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4556 *) Avoid coredump with unsupported or invalid public keys by checking if
4557 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4558 PKCS7_verify() fails with non detached data.
4561 *) Don't use getenv in library functions when run as setuid/setgid.
4562 New function OPENSSL_issetugid().
4565 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4566 due to incorrect handling of multi-threading:
4568 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4570 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4572 3. Count how many times MemCheck_off() has been called so that
4573 nested use can be treated correctly. This also avoids
4574 inband-signalling in the previous code (which relied on the
4575 assumption that thread ID 0 is impossible).
4578 *) Add "-rand" option also to s_client and s_server.
4581 *) Fix CPU detection on Irix 6.x.
4582 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4583 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4585 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4588 [This change does not apply to 0.9.7.]
4590 *) Use the cached encoding of an X509_NAME structure rather than
4591 copying it. This is apparently the reason for the libsafe "errors"
4592 but the code is actually correct.
4595 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4596 Bleichenbacher's DSA attack.
4597 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4598 to be set and top=0 forces the highest bit to be set; top=-1 is new
4599 and leaves the highest bit random.
4600 [Ulf Moeller, Bodo Moeller]
4602 *) In the NCONF_...-based implementations for CONF_... queries
4603 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4604 a temporary CONF structure with the data component set to NULL
4605 (which gives segmentation faults in lh_retrieve).
4606 Instead, use NULL for the CONF pointer in CONF_get_string and
4607 CONF_get_number (which may use environment variables) and directly
4608 return NULL from CONF_get_section.
4611 *) Fix potential buffer overrun for EBCDIC.
4614 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4615 keyUsage if basicConstraints absent for a CA.
4618 *) Make SMIME_write_PKCS7() write mail header values with a format that
4619 is more generally accepted (no spaces before the semicolon), since
4620 some programs can't parse those values properly otherwise. Also make
4621 sure BIO's that break lines after each write do not create invalid
4625 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4626 macros previously used would not encode an empty SEQUENCE OF
4627 and break the signature.
4629 [This change does not apply to 0.9.7.]
4631 *) Zero the premaster secret after deriving the master secret in
4635 *) Add some EVP_add_digest_alias registrations (as found in
4636 OpenSSL_add_all_digests()) to SSL_library_init()
4637 aka OpenSSL_add_ssl_algorithms(). This provides improved
4638 compatibility with peers using X.509 certificates
4639 with unconventional AlgorithmIdentifier OIDs.
4642 *) Fix for Irix with NO_ASM.
4643 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4645 *) ./config script fixes.
4646 [Ulf Moeller, Richard Levitte]
4648 *) Fix 'openssl passwd -1'.
4651 *) Change PKCS12_key_gen_asc() so it can cope with non null
4652 terminated strings whose length is passed in the passlen
4653 parameter, for example from PEM callbacks. This was done
4654 by adding an extra length parameter to asc2uni().
4655 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4657 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4658 call failed, free the DSA structure.
4661 *) Fix to uni2asc() to cope with zero length Unicode strings.
4662 These are present in some PKCS#12 files.
4665 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4666 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4667 when writing a 32767 byte record.
4668 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4670 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4671 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4673 (RSA objects have a reference count access to which is protected
4674 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4675 so they are meant to be shared between threads.)
4676 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4677 "Reddie, Steven" <Steven.Reddie@ca.com>]
4679 *) Fix a deadlock in CRYPTO_mem_leaks().
4682 *) Use better test patterns in bntest.
4685 *) rand_win.c fix for Borland C.
4688 *) BN_rshift bugfix for n == 0.
4691 *) Add a 'bctest' script that checks for some known 'bc' bugs
4692 so that 'make test' does not abort just because 'bc' is broken.
4695 *) Store verify_result within SSL_SESSION also for client side to
4696 avoid potential security hole. (Re-used sessions on the client side
4697 always resulted in verify_result==X509_V_OK, not using the original
4698 result of the server certificate verification.)
4701 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4702 SSL3_RT_APPLICATION_DATA, return 0.
4703 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4707 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4708 releases, have been re-implemented by renaming the previous
4709 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4710 and ssl3_read_internal, respectively, and adding 'peek' parameters
4711 to them. The new ssl[23]_{read,peek} functions are calls to
4712 ssl[23]_read_internal with the 'peek' flag set appropriately.
4713 A 'peek' parameter has also been added to ssl3_read_bytes, which
4714 does the actual work for ssl3_read_internal.
4717 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4718 the method-specific "init()" handler. Also clean up ex_data after
4719 calling the method-specific "finish()" handler. Previously, this was
4720 happening the other way round.
4723 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4724 The previous value, 12, was not always sufficient for BN_mod_exp().
4727 *) Make sure that shared libraries get the internal name engine with
4728 the full version number and not just 0. This should mark the
4729 shared libraries as not backward compatible. Of course, this should
4730 be changed again when we can guarantee backward binary compatibility.
4733 *) Fix typo in get_cert_by_subject() in by_dir.c
4734 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4736 *) Rework the system to generate shared libraries:
4738 - Make note of the expected extension for the shared libraries and
4739 if there is a need for symbolic links from for example libcrypto.so.0
4740 to libcrypto.so.0.9.7. There is extended info in Configure for
4743 - Make as few rebuilds of the shared libraries as possible.
4745 - Still avoid linking the OpenSSL programs with the shared libraries.
4747 - When installing, install the shared libraries separately from the
4751 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4753 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4754 and not in SSL_clear because the latter is also used by the
4755 accept/connect functions; previously, the settings made by
4756 SSL_set_read_ahead would be lost during the handshake.
4757 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4759 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4760 Previously, it would create entries for disableed algorithms no
4764 *) Added several new manual pages for SSL_* function.
4767 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4769 *) In ssl23_get_client_hello, generate an error message when faced
4770 with an initial SSL 3.0/TLS record that is too small to contain the
4771 first two bytes of the ClientHello message, i.e. client_version.
4772 (Note that this is a pathologic case that probably has never happened
4773 in real life.) The previous approach was to use the version number
4774 from the record header as a substitute; but our protocol choice
4775 should not depend on that one because it is not authenticated
4776 by the Finished messages.
4779 *) More robust randomness gathering functions for Windows.
4780 [Jeffrey Altman <jaltman@columbia.edu>]
4782 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4783 not set then we don't setup the error code for issuer check errors
4784 to avoid possibly overwriting other errors which the callback does
4785 handle. If an application does set the flag then we assume it knows
4786 what it is doing and can handle the new informational codes
4790 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4791 a general "ANY" type, as such it should be able to decode anything
4792 including tagged types. However it didn't check the class so it would
4793 wrongly interpret tagged types in the same way as their universal
4794 counterpart and unknown types were just rejected. Changed so that the
4795 tagged and unknown types are handled in the same way as a SEQUENCE:
4796 that is the encoding is stored intact. There is also a new type
4797 "V_ASN1_OTHER" which is used when the class is not universal, in this
4798 case we have no idea what the actual type is so we just lump them all
4802 *) On VMS, stdout may very well lead to a file that is written to
4803 in a record-oriented fashion. That means that every write() will
4804 write a separate record, which will be read separately by the
4805 programs trying to read from it. This can be very confusing.
4807 The solution is to put a BIO filter in the way that will buffer
4808 text until a linefeed is reached, and then write everything a
4809 line at a time, so every record written will be an actual line,
4810 not chunks of lines and not (usually doesn't happen, but I've
4811 seen it once) several lines in one record. BIO_f_linebuffer() is
4814 Currently, it's a VMS-only method, because that's where it has
4815 been tested well enough.
4818 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4819 it can return incorrect results.
4820 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4821 but it was in 0.9.6-beta[12].)
4824 *) Disable the check for content being present when verifying detached
4825 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4826 include zero length content when signing messages.
4829 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4830 BIO_ctrl (for BIO pairs).
4833 *) Add DSO method for VMS.
4836 *) Bug fix: Montgomery multiplication could produce results with the
4840 *) Add RPM specification openssl.spec and modify it to build three
4841 packages. The default package contains applications, application
4842 documentation and run-time libraries. The devel package contains
4843 include files, static libraries and function documentation. The
4844 doc package contains the contents of the doc directory. The original
4845 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4848 *) Add a large number of documentation files for many SSL routines.
4849 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4851 *) Add a configuration entry for Sony News 4.
4852 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4854 *) Don't set the two most significant bits to one when generating a
4855 random number < q in the DSA library.
4858 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4859 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4860 the underlying transport is blocking) if a handshake took place.
4861 (The default behaviour is needed by applications such as s_client
4862 and s_server that use select() to determine when to use SSL_read;
4863 but for applications that know in advance when to expect data, it
4864 just makes things more complicated.)
4867 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4871 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4872 work better on such systems.
4873 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4875 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4876 Update PKCS12_parse() so it copies the friendlyName and the
4877 keyid to the certificates aux info.
4880 *) Fix bug in PKCS7_verify() which caused an infinite loop
4881 if there was more than one signature.
4882 [Sven Uszpelkat <su@celocom.de>]
4884 *) Major change in util/mkdef.pl to include extra information
4885 about each symbol, as well as presentig variables as well
4886 as functions. This change means that there's n more need
4887 to rebuild the .num files when some algorithms are excluded.
4890 *) Allow the verify time to be set by an application,
4891 rather than always using the current time.
4894 *) Phase 2 verify code reorganisation. The certificate
4895 verify code now looks up an issuer certificate by a
4896 number of criteria: subject name, authority key id
4897 and key usage. It also verifies self signed certificates
4898 by the same criteria. The main comparison function is
4899 X509_check_issued() which performs these checks.
4901 Lot of changes were necessary in order to support this
4902 without completely rewriting the lookup code.
4904 Authority and subject key identifier are now cached.
4906 The LHASH 'certs' is X509_STORE has now been replaced
4907 by a STACK_OF(X509_OBJECT). This is mainly because an
4908 LHASH can't store or retrieve multiple objects with
4909 the same hash value.
4911 As a result various functions (which were all internal
4912 use only) have changed to handle the new X509_STORE
4913 structure. This will break anything that messed round
4914 with X509_STORE internally.
4916 The functions X509_STORE_add_cert() now checks for an
4917 exact match, rather than just subject name.
4919 The X509_STORE API doesn't directly support the retrieval
4920 of multiple certificates matching a given criteria, however
4921 this can be worked round by performing a lookup first
4922 (which will fill the cache with candidate certificates)
4923 and then examining the cache for matches. This is probably
4924 the best we can do without throwing out X509_LOOKUP
4925 entirely (maybe later...).
4927 The X509_VERIFY_CTX structure has been enhanced considerably.
4929 All certificate lookup operations now go via a get_issuer()
4930 callback. Although this currently uses an X509_STORE it
4931 can be replaced by custom lookups. This is a simple way
4932 to bypass the X509_STORE hackery necessary to make this
4933 work and makes it possible to use more efficient techniques
4934 in future. A very simple version which uses a simple
4935 STACK for its trusted certificate store is also provided
4936 using X509_STORE_CTX_trusted_stack().
4938 The verify_cb() and verify() callbacks now have equivalents
4939 in the X509_STORE_CTX structure.
4941 X509_STORE_CTX also has a 'flags' field which can be used
4942 to customise the verify behaviour.
4945 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4946 excludes S/MIME capabilities.
4949 *) When a certificate request is read in keep a copy of the
4950 original encoding of the signed data and use it when outputing
4951 again. Signatures then use the original encoding rather than
4952 a decoded, encoded version which may cause problems if the
4953 request is improperly encoded.
4956 *) For consistency with other BIO_puts implementations, call
4957 buffer_write(b, ...) directly in buffer_puts instead of calling
4960 In BIO_puts, increment b->num_write as in BIO_write.
4961 [Peter.Sylvester@EdelWeb.fr]
4963 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4964 BN_zero, we may not return a BIGNUM with an array consisting of
4968 *) Avoid calling abort() from within the library when problems are
4969 detected, except if preprocessor symbols have been defined
4970 (such as REF_CHECK, BN_DEBUG etc.).
4973 *) New openssl application 'rsautl'. This utility can be
4974 used for low level RSA operations. DER public key
4975 BIO/fp routines also added.
4978 *) New Configure entry and patches for compiling on QNX 4.
4979 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4981 *) A demo state-machine implementation was sponsored by
4982 Nuron (http://www.nuron.com/) and is now available in
4983 demos/state_machine.
4986 *) New options added to the 'dgst' utility for signature
4987 generation and verification.
4990 *) Unrecognized PKCS#7 content types are now handled via a
4991 catch all ASN1_TYPE structure. This allows unsupported
4992 types to be stored as a "blob" and an application can
4993 encode and decode it manually.
4996 *) Fix various signed/unsigned issues to make a_strex.c
4998 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5000 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5001 length if passed a buffer. ASN1_INTEGER_to_BN failed
5002 if passed a NULL BN and its argument was negative.
5003 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5005 *) Modification to PKCS#7 encoding routines to output definite
5006 length encoding. Since currently the whole structures are in
5007 memory there's not real point in using indefinite length
5008 constructed encoding. However if OpenSSL is compiled with
5009 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5012 *) Added BIO_vprintf() and BIO_vsnprintf().
5015 *) Added more prefixes to parse for in the the strings written
5016 through a logging bio, to cover all the levels that are available
5017 through syslog. The prefixes are now:
5019 PANIC, EMERG, EMR => LOG_EMERG
5020 ALERT, ALR => LOG_ALERT
5021 CRIT, CRI => LOG_CRIT
5022 ERROR, ERR => LOG_ERR
5023 WARNING, WARN, WAR => LOG_WARNING
5024 NOTICE, NOTE, NOT => LOG_NOTICE
5025 INFO, INF => LOG_INFO
5026 DEBUG, DBG => LOG_DEBUG
5028 and as before, if none of those prefixes are present at the
5029 beginning of the string, LOG_ERR is chosen.
5031 On Win32, the LOG_* levels are mapped according to this:
5033 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5034 LOG_WARNING => EVENTLOG_WARNING_TYPE
5035 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5039 *) Made it possible to reconfigure with just the configuration
5040 argument "reconf" or "reconfigure". The command line arguments
5041 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5042 and are retrieved from there when reconfiguring.
5046 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5048 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5051 *) The obj_dat.pl script was messing up the sorting of object
5052 names. The reason was that it compared the quoted version
5053 of strings as a result "OCSP" > "OCSP Signing" because
5054 " > SPACE. Changed script to store unquoted versions of
5055 names and add quotes on output. It was also omitting some
5056 names from the lookup table if they were given a default
5057 value (that is if SN is missing it is given the same
5058 value as LN and vice versa), these are now added on the
5059 grounds that if an object has a name we should be able to
5060 look it up. Finally added warning output when duplicate
5061 short or long names are found.
5064 *) Changes needed for Tandem NSK.
5065 [Scott Uroff <scott@xypro.com>]
5067 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5068 RSA_padding_check_SSLv23(), special padding was never detected
5069 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5070 version rollback attacks was not effective.
5072 In s23_clnt.c, don't use special rollback-attack detection padding
5073 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5074 client; similarly, in s23_srvr.c, don't do the rollback check if
5075 SSL 2.0 is the only protocol enabled in the server.
5078 *) Make it possible to get hexdumps of unprintable data with 'openssl
5079 asn1parse'. By implication, the functions ASN1_parse_dump() and
5080 BIO_dump_indent() are added.
5083 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5084 these print out strings and name structures based on various
5085 flags including RFC2253 support and proper handling of
5086 multibyte characters. Added options to the 'x509' utility
5087 to allow the various flags to be set.
5090 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5091 Also change the functions X509_cmp_current_time() and
5092 X509_gmtime_adj() work with an ASN1_TIME structure,
5093 this will enable certificates using GeneralizedTime in validity
5094 dates to be checked.
5097 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5098 negative public key encodings) on by default,
5099 NO_NEG_PUBKEY_BUG can be set to disable it.
5102 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5103 content octets. An i2c_ASN1_OBJECT is unnecessary because
5104 the encoding can be trivially obtained from the structure.
5107 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5108 not read locks (CRYPTO_r_[un]lock).
5111 *) A first attempt at creating official support for shared
5112 libraries through configuration. I've kept it so the
5113 default is static libraries only, and the OpenSSL programs
5114 are always statically linked for now, but there are
5115 preparations for dynamic linking in place.
5116 This has been tested on Linux and Tru64.
5119 *) Randomness polling function for Win9x, as described in:
5120 Peter Gutmann, Software Generation of Practically Strong
5124 *) Fix so PRNG is seeded in req if using an already existing
5128 *) New options to smime application. -inform and -outform
5129 allow alternative formats for the S/MIME message including
5130 PEM and DER. The -content option allows the content to be
5131 specified separately. This should allow things like Netscape
5132 form signing output easier to verify.
5135 *) Fix the ASN1 encoding of tags using the 'long form'.
5138 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5139 STRING types. These convert content octets to and from the
5140 underlying type. The actual tag and length octets are
5141 already assumed to have been read in and checked. These
5142 are needed because all other string types have virtually
5143 identical handling apart from the tag. By having versions
5144 of the ASN1 functions that just operate on content octets
5145 IMPLICIT tagging can be handled properly. It also allows
5146 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5147 and ASN1_INTEGER are identical apart from the tag.
5150 *) Change the handling of OID objects as follows:
5152 - New object identifiers are inserted in objects.txt, following
5153 the syntax given in objects.README.
5154 - objects.pl is used to process obj_mac.num and create a new
5156 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5159 This is currently kind of a hack, and the perl code in objects.pl
5160 isn't very elegant, but it works as I intended. The simplest way
5161 to check that it worked correctly is to look in obj_dat.h and
5162 check the array nid_objs and make sure the objects haven't moved
5163 around (this is important!). Additions are OK, as well as
5164 consistent name changes.
5167 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5170 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5171 The given file adds to whatever has already been seeded into the
5172 random pool through the RANDFILE configuration file option or
5173 environment variable, or the default random state file.
5176 *) mkstack.pl now sorts each macro group into lexical order.
5177 Previously the output order depended on the order the files
5178 appeared in the directory, resulting in needless rewriting
5182 *) Patches to make OpenSSL compile under Win32 again. Mostly
5183 work arounds for the VC++ problem that it treats func() as
5184 func(void). Also stripped out the parts of mkdef.pl that
5185 added extra typesafe functions: these no longer exist.
5188 *) Reorganisation of the stack code. The macros are now all
5189 collected in safestack.h . Each macro is defined in terms of
5190 a "stack macro" of the form SKM_<name>(type, a, b). The
5191 DEBUG_SAFESTACK is now handled in terms of function casts,
5192 this has the advantage of retaining type safety without the
5193 use of additional functions. If DEBUG_SAFESTACK is not defined
5194 then the non typesafe macros are used instead. Also modified the
5195 mkstack.pl script to handle the new form. Needs testing to see
5196 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5197 the default if no major problems. Similar behaviour for ASN1_SET_OF
5198 and PKCS12_STACK_OF.
5201 *) When some versions of IIS use the 'NET' form of private key the
5202 key derivation algorithm is different. Normally MD5(password) is
5203 used as a 128 bit RC4 key. In the modified case
5204 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5205 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5206 as the old Netscape_RSA functions except they have an additional
5207 'sgckey' parameter which uses the modified algorithm. Also added
5208 an -sgckey command line option to the rsa utility. Thanks to
5209 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5210 algorithm to openssl-dev.
5213 *) The evp_local.h macros were using 'c.##kname' which resulted in
5214 invalid expansion on some systems (SCO 5.0.5 for example).
5215 Corrected to 'c.kname'.
5216 [Phillip Porch <root@theporch.com>]
5218 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5219 a STACK of email addresses from a certificate or request, these look
5220 in the subject name and the subject alternative name extensions and
5221 omit any duplicate addresses.
5224 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5225 This makes DSA verification about 2 % faster.
5228 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5229 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5230 plus overhead for 1024 bit moduli).
5231 This makes exponentiations about 0.5 % faster for 1024 bit
5232 exponents (as measured by "openssl speed rsa2048").
5235 *) Rename memory handling macros to avoid conflicts with other
5237 Malloc => OPENSSL_malloc
5238 Malloc_locked => OPENSSL_malloc_locked
5239 Realloc => OPENSSL_realloc
5240 Free => OPENSSL_free
5243 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5244 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5247 *) CygWin32 support.
5248 [John Jarvie <jjarvie@newsguy.com>]
5250 *) The type-safe stack code has been rejigged. It is now only compiled
5251 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5252 by default all type-specific stack functions are "#define"d back to
5253 standard stack functions. This results in more streamlined output
5254 but retains the type-safety checking possibilities of the original
5258 *) The STACK code has been cleaned up, and certain type declarations
5259 that didn't make a lot of sense have been brought in line. This has
5260 also involved a cleanup of sorts in safestack.h to more correctly
5261 map type-safe stack functions onto their plain stack counterparts.
5262 This work has also resulted in a variety of "const"ifications of
5263 lots of the code, especially "_cmp" operations which should normally
5264 be prototyped with "const" parameters anyway.
5267 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5268 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5269 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5270 where all of 'md' is used each time the PRNG is used, but 'state'
5271 is used only indexed by a cyclic counter. As entropy may not be
5272 well distributed from the beginning, 'md' is important as a
5273 chaining variable. However, the output function chains only half
5274 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5275 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5276 in all of 'state' being rewritten, with the new values depending
5277 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5280 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5281 the handshake is continued after ssl_verify_cert_chain();
5282 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5283 can lead to 'unexplainable' connection aborts later.
5284 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5286 *) Major EVP API cipher revision.
5287 Add hooks for extra EVP features. This allows various cipher
5288 parameters to be set in the EVP interface. Support added for variable
5289 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5290 setting of RC2 and RC5 parameters.
5292 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5295 Remove lots of duplicated code from the EVP library. For example *every*
5296 cipher init() function handles the 'iv' in the same way according to the
5297 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5298 for CFB and OFB modes they zero ctx->num.
5300 New functionality allows removal of S/MIME code RC2 hack.
5302 Most of the routines have the same form and so can be declared in terms
5305 By shifting this to the top level EVP_CipherInit() it can be removed from
5306 all individual ciphers. If the cipher wants to handle IVs or keys
5307 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5310 Change lots of functions like EVP_EncryptUpdate() to now return a
5311 value: although software versions of the algorithms cannot fail
5312 any installed hardware versions can.
5315 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5316 this option is set, tolerate broken clients that send the negotiated
5317 protocol version number instead of the requested protocol version
5321 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5322 i.e. non-zero for export ciphersuites, zero otherwise.
5323 Previous versions had this flag inverted, inconsistent with
5324 rsa_tmp_cb (..._TMP_RSA_CB).
5325 [Bodo Moeller; problem reported by Amit Chopra]
5327 *) Add missing DSA library text string. Work around for some IIS
5328 key files with invalid SEQUENCE encoding.
5331 *) Add a document (doc/standards.txt) that list all kinds of standards
5332 and so on that are implemented in OpenSSL.
5335 *) Enhance c_rehash script. Old version would mishandle certificates
5336 with the same subject name hash and wouldn't handle CRLs at all.
5337 Added -fingerprint option to crl utility, to support new c_rehash
5341 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5344 *) Fix for SSL server purpose checking. Server checking was
5345 rejecting certificates which had extended key usage present
5346 but no ssl client purpose.
5347 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5349 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5350 is a little unclear about how a blank password is handled.
5351 Since the password in encoded as a BMPString with terminating
5352 double NULL a zero length password would end up as just the
5353 double NULL. However no password at all is different and is
5354 handled differently in the PKCS#12 key generation code. NS
5355 treats a blank password as zero length. MSIE treats it as no
5356 password on export: but it will try both on import. We now do
5357 the same: PKCS12_parse() tries zero length and no password if
5358 the password is set to "" or NULL (NULL is now a valid password:
5359 it wasn't before) as does the pkcs12 application.
5362 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5363 perror when PEM_read_bio_X509_REQ fails, the error message must
5364 be obtained from the error queue.
5367 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5368 it in ERR_remove_state if appropriate, and change ERR_get_state
5369 accordingly to avoid race conditions (this is necessary because
5370 thread_hash is no longer constant once set).
5373 *) Bugfix for linux-elf makefile.one.
5376 *) RSA_get_default_method() will now cause a default
5377 RSA_METHOD to be chosen if one doesn't exist already.
5378 Previously this was only set during a call to RSA_new()
5379 or RSA_new_method(NULL) meaning it was possible for
5380 RSA_get_default_method() to return NULL.
5383 *) Added native name translation to the existing DSO code
5384 that will convert (if the flag to do so is set) filenames
5385 that are sufficiently small and have no path information
5386 into a canonical native form. Eg. "blah" converted to
5387 "libblah.so" or "blah.dll" etc.
5390 *) New function ERR_error_string_n(e, buf, len) which is like
5391 ERR_error_string(e, buf), but writes at most 'len' bytes
5392 including the 0 terminator. For ERR_error_string_n, 'buf'
5394 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5396 *) CONF library reworked to become more general. A new CONF
5397 configuration file reader "class" is implemented as well as a
5398 new functions (NCONF_*, for "New CONF") to handle it. The now
5399 old CONF_* functions are still there, but are reimplemented to
5400 work in terms of the new functions. Also, a set of functions
5401 to handle the internal storage of the configuration data is
5402 provided to make it easier to write new configuration file
5403 reader "classes" (I can definitely see something reading a
5404 configuration file in XML format, for example), called _CONF_*,
5405 or "the configuration storage API"...
5407 The new configuration file reading functions are:
5409 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5410 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5412 NCONF_default, NCONF_WIN32
5414 NCONF_dump_fp, NCONF_dump_bio
5416 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5417 NCONF_new creates a new CONF object. This works in the same way
5418 as other interfaces in OpenSSL, like the BIO interface.
5419 NCONF_dump_* dump the internal storage of the configuration file,
5420 which is useful for debugging. All other functions take the same
5421 arguments as the old CONF_* functions wth the exception of the
5422 first that must be a `CONF *' instead of a `LHASH *'.
5424 To make it easer to use the new classes with the old CONF_* functions,
5425 the function CONF_set_default_method is provided.
5428 *) Add '-tls1' option to 'openssl ciphers', which was already
5429 mentioned in the documentation but had not been implemented.
5430 (This option is not yet really useful because even the additional
5431 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5434 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5435 OpenSSL-based applications) load shared libraries and bind to
5436 them in a portable way.
5437 [Geoff Thorpe, with contributions from Richard Levitte]
5439 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5441 *) Make sure _lrotl and _lrotr are only used with MSVC.
5443 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5444 (the default implementation of RAND_status).
5446 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5447 to '-clrext' (= clear extensions), as intended and documented.
5448 [Bodo Moeller; inconsistency pointed out by Michael Attili
5451 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5452 was larger than the MD block size.
5453 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5455 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5456 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5457 using the passed key: if the passed key was a private key the result
5458 of X509_print(), for example, would be to print out all the private key
5462 *) des_quad_cksum() byte order bug fix.
5463 [Ulf Möller, using the problem description in krb4-0.9.7, where
5464 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5466 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5468 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5470 *) For easily testing in shell scripts whether some command
5471 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5472 returns with exit code 0 iff no command of the given name is available.
5473 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5474 the output goes to stdout and nothing is printed to stderr.
5475 Additional arguments are always ignored.
5477 Since for each cipher there is a command of the same name,
5478 the 'no-cipher' compilation switches can be tested this way.
5480 ('openssl no-XXX' is not able to detect pseudo-commands such
5481 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5484 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5487 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5488 is set; it will be thrown away anyway because each handshake creates
5490 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5491 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5492 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5493 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5496 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5497 'Q' and 'R' lose their special meanings (quit/renegotiate).
5498 This is part of what -quiet does; unlike -quiet, -ign_eof
5499 does not suppress any output.
5502 *) Add compatibility options to the purpose and trust code. The
5503 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5504 accepts a certificate or CA, this was the previous behaviour,
5505 with all the associated security issues.
5507 X509_TRUST_COMPAT is the old trust behaviour: only and
5508 automatically trust self signed roots in certificate store. A
5509 new trust setting X509_TRUST_DEFAULT is used to specify that
5510 a purpose has no associated trust setting and it should instead
5511 use the value in the default purpose.
5514 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5515 and fix a memory leak.
5518 *) In util/mkerr.pl (which implements 'make errors'), preserve
5519 reason strings from the previous version of the .c file, as
5520 the default to have only downcase letters (and digits) in
5521 automatically generated reasons codes is not always appropriate.
5524 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5525 using strerror. Previously, ERR_reason_error_string() returned
5526 library names as reason strings for SYSerr; but SYSerr is a special
5527 case where small numbers are errno values, not library numbers.
5530 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5531 converts DSA parameters into DH parameters. (When creating parameters,
5532 DSA_generate_parameters is used.)
5535 *) Include 'length' (recommended exponent length) in C code generated
5536 by 'openssl dhparam -C'.
5539 *) The second argument to set_label in perlasm was already being used
5540 so couldn't be used as a "file scope" flag. Moved to third argument
5544 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5545 instead of RAND_bytes for encryption IVs and salts.
5548 *) Include RAND_status() into RAND_METHOD instead of implementing
5549 it only for md_rand.c Otherwise replacing the PRNG by calling
5550 RAND_set_rand_method would be impossible.
5553 *) Don't let DSA_generate_key() enter an infinite loop if the random
5554 number generation fails.
5557 *) New 'rand' application for creating pseudo-random output.
5560 *) Added configuration support for Linux/IA64
5561 [Rolf Haberrecker <rolf@suse.de>]
5563 *) Assembler module support for Mingw32.
5566 *) Shared library support for HPUX (in shlib/).
5567 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5569 *) Shared library support for Solaris gcc.
5570 [Lutz Behnke <behnke@trustcenter.de>]
5572 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5574 *) PKCS7_encrypt() was adding text MIME headers twice because they
5575 were added manually and by SMIME_crlf_copy().
5578 *) In bntest.c don't call BN_rand with zero bits argument.
5579 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5581 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5582 case was implemented. This caused BN_div_recp() to fail occasionally.
5585 *) Add an optional second argument to the set_label() in the perl
5586 assembly language builder. If this argument exists and is set
5587 to 1 it signals that the assembler should use a symbol whose
5588 scope is the entire file, not just the current function. This
5589 is needed with MASM which uses the format label:: for this scope.
5590 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5592 *) Change the ASN1 types so they are typedefs by default. Before
5593 almost all types were #define'd to ASN1_STRING which was causing
5594 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5598 *) Change names of new functions to the new get1/get0 naming
5599 convention: After 'get1', the caller owns a reference count
5600 and has to call ..._free; 'get0' returns a pointer to some
5601 data structure without incrementing reference counters.
5602 (Some of the existing 'get' functions increment a reference
5603 counter, some don't.)
5604 Similarly, 'set1' and 'add1' functions increase reference
5605 counters or duplicate objects.
5608 *) Allow for the possibility of temp RSA key generation failure:
5609 the code used to assume it always worked and crashed on failure.
5612 *) Fix potential buffer overrun problem in BIO_printf().
5613 [Ulf Möller, using public domain code by Patrick Powell; problem
5614 pointed out by David Sacerdote <das33@cornell.edu>]
5616 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5617 RAND_egd() and RAND_status(). In the command line application,
5618 the EGD socket can be specified like a seed file using RANDFILE
5622 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5623 Some CAs (e.g. Verisign) distribute certificates in this form.
5626 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5627 list to exclude them. This means that no special compilation option
5628 is needed to use anonymous DH: it just needs to be included in the
5632 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5633 EVP_MD_type. The old functionality is available in a new macro called
5634 EVP_MD_md(). Change code that uses it and update docs.
5637 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5638 where the 'void *' argument is replaced by a function pointer argument.
5639 Previously 'void *' was abused to point to functions, which works on
5640 many platforms, but is not correct. As these functions are usually
5641 called by macros defined in OpenSSL header files, most source code
5642 should work without changes.
5645 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5646 sections with information on -D... compiler switches used for
5647 compiling the library so that applications can see them. To enable
5648 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5649 must be defined. E.g.,
5650 #define OPENSSL_ALGORITHM_DEFINES
5651 #include <openssl/opensslconf.h>
5652 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5653 [Richard Levitte, Ulf and Bodo Möller]
5655 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5659 *) Change the 'other' type in certificate aux info to a STACK_OF
5660 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5661 the required ASN1 format: arbitrary types determined by an OID.
5664 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5665 argument to 'req'. This is not because the function is newer or
5666 better than others it just uses the work 'NEW' in the certificate
5667 request header lines. Some software needs this.
5670 *) Reorganise password command line arguments: now passwords can be
5671 obtained from various sources. Delete the PEM_cb function and make
5672 it the default behaviour: i.e. if the callback is NULL and the
5673 usrdata argument is not NULL interpret it as a null terminated pass
5674 phrase. If usrdata and the callback are NULL then the pass phrase
5675 is prompted for as usual.
5678 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5679 the support is automatically enabled. The resulting binaries will
5680 autodetect the card and use it if present.
5681 [Ben Laurie and Compaq Inc.]
5683 *) Work around for Netscape hang bug. This sends certificate request
5684 and server done in one record. Since this is perfectly legal in the
5685 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5686 the bugs/SSLv3 entry for more info.
5689 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5692 *) Add -rand argument to smime and pkcs12 applications and read/write
5696 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5699 *) Add command line password options to the remaining applications.
5702 *) Bug fix for BN_div_recp() for numerators with an even number of
5706 *) More tests in bntest.c, and changed test_bn output.
5709 *) ./config recognizes MacOS X now.
5712 *) Bug fix for BN_div() when the first words of num and divsor are
5713 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5716 *) Add support for various broken PKCS#8 formats, and command line
5717 options to produce them.
5720 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5721 get temporary BIGNUMs from a BN_CTX.
5724 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5728 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5729 include a #define from the old name to the new. The original intent
5730 was that statically linked binaries could for example just call
5731 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5732 link with digests. This never worked becayse SSLeay_add_all_digests()
5733 and SSLeay_add_all_ciphers() were in the same source file so calling
5734 one would link with the other. They are now in separate source files.
5737 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5740 *) Use a less unusual form of the Miller-Rabin primality test (it used
5741 a binary algorithm for exponentiation integrated into the Miller-Rabin
5742 loop, our standard modexp algorithms are faster).
5745 *) Support for the EBCDIC character set completed.
5746 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5748 *) Source code cleanups: use const where appropriate, eliminate casts,
5749 use void * instead of char * in lhash.
5752 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5753 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5754 this the server could overwrite ephemeral keys that the client
5758 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5759 using 50 iterations of the Rabin-Miller test.
5761 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5762 iterations of the Rabin-Miller test as required by the appendix
5763 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5764 As BN_is_prime_fasttest includes trial division, DSA parameter
5765 generation becomes much faster.
5767 This implies a change for the callback functions in DSA_is_prime
5768 and DSA_generate_parameters: The callback function is called once
5769 for each positive witness in the Rabin-Miller test, not just
5770 occasionally in the inner loop; and the parameters to the
5771 callback function now provide an iteration count for the outer
5772 loop rather than for the current invocation of the inner loop.
5773 DSA_generate_parameters additionally can call the callback
5774 function with an 'iteration count' of -1, meaning that a
5775 candidate has passed the trial division test (when q is generated
5776 from an application-provided seed, trial division is skipped).
5779 *) New function BN_is_prime_fasttest that optionally does trial
5780 division before starting the Rabin-Miller test and has
5781 an additional BN_CTX * argument (whereas BN_is_prime always
5782 has to allocate at least one BN_CTX).
5783 'callback(1, -1, cb_arg)' is called when a number has passed the
5784 trial division stage.
5787 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5791 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5794 *) New function BN_pseudo_rand().
5797 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5798 bignum version of BN_from_montgomery() with the working code from
5799 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5803 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5804 made it impossible to use the same SSL_SESSION data structure in
5805 SSL2 clients in multiple threads.
5808 *) The return value of RAND_load_file() no longer counts bytes obtained
5809 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5810 to seed the PRNG (previously an explicit byte count was required).
5811 [Ulf Möller, Bodo Möller]
5813 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5814 used (char *) instead of (void *) and had casts all over the place.
5817 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5820 *) Retain source code compatibility for BN_prime_checks macro:
5821 BN_is_prime(..., BN_prime_checks, ...) now uses
5822 BN_prime_checks_for_size to determine the appropriate number of
5823 Rabin-Miller iterations.
5826 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5827 DH_CHECK_P_NOT_SAFE_PRIME.
5828 (Check if this is true? OpenPGP calls them "strong".)
5831 *) Merge the functionality of "dh" and "gendh" programs into a new program
5832 "dhparam". The old programs are retained for now but will handle DH keys
5833 (instead of parameters) in future.
5836 *) Make the ciphers, s_server and s_client programs check the return values
5837 when a new cipher list is set.
5840 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5841 ciphers. Before when the 56bit ciphers were enabled the sorting was
5844 The syntax for the cipher sorting has been extended to support sorting by
5845 cipher-strength (using the strength_bits hard coded in the tables).
5846 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5848 Fix a bug in the cipher-command parser: when supplying a cipher command
5849 string with an "undefined" symbol (neither command nor alphanumeric
5850 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5851 an error is flagged.
5853 Due to the strength-sorting extension, the code of the
5854 ssl_create_cipher_list() function was completely rearranged. I hope that
5855 the readability was also increased :-)
5856 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5858 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5859 for the first serial number and places 2 in the serial number file. This
5860 avoids problems when the root CA is created with serial number zero and
5861 the first user certificate has the same issuer name and serial number
5865 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5866 the new code. Add documentation for this stuff.
5869 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5870 X509_*() to X509at_*() on the grounds that they don't handle X509
5871 structures and behave in an analagous way to the X509v3 functions:
5872 they shouldn't be called directly but wrapper functions should be used
5875 So we also now have some wrapper functions that call the X509at functions
5876 when passed certificate requests. (TO DO: similar things can be done with
5877 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5878 things. Some of these need some d2i or i2d and print functionality
5879 because they handle more complex structures.)
5882 *) Add missing #ifndefs that caused missing symbols when building libssl
5883 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5884 NO_RSA in ssl/s2*.c.
5885 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5887 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5888 has a return value which indicates the quality of the random data
5889 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5890 error queue. New function RAND_pseudo_bytes() generates output that is
5891 guaranteed to be unique but not unpredictable. RAND_add is like
5892 RAND_seed, but takes an extra argument for an entropy estimate
5893 (RAND_seed always assumes full entropy).
5896 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5897 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5898 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5899 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5900 false-positive rate of at most 2^-80 for random input.
5903 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5906 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5907 in the 0.9.5 release), this returns the chain
5908 from an X509_CTX structure with a dup of the stack and all
5909 the X509 reference counts upped: so the stack will exist
5910 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5913 Also make SSL_SESSION_print() print out the verify return
5917 *) Add manpage for the pkcs12 command. Also change the default
5918 behaviour so MAC iteration counts are used unless the new
5919 -nomaciter option is used. This improves file security and
5920 only older versions of MSIE (4.0 for example) need it.
5923 *) Honor the no-xxx Configure options when creating .DEF files.
5926 *) Add PKCS#10 attributes to field table: challengePassword,
5927 unstructuredName and unstructuredAddress. These are taken from
5928 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5929 international characters are used.
5931 More changes to X509_ATTRIBUTE code: allow the setting of types
5932 based on strings. Remove the 'loc' parameter when adding
5933 attributes because these will be a SET OF encoding which is sorted
5937 *) Initial changes to the 'req' utility to allow request generation
5938 automation. This will allow an application to just generate a template
5939 file containing all the field values and have req construct the
5942 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5943 used all over the place including certificate requests and PKCS#7
5944 structures. They are currently handled manually where necessary with
5945 some primitive wrappers for PKCS#7. The new functions behave in a
5946 manner analogous to the X509 extension functions: they allow
5947 attributes to be looked up by NID and added.
5949 Later something similar to the X509V3 code would be desirable to
5950 automatically handle the encoding, decoding and printing of the
5951 more complex types. The string types like challengePassword can
5952 be handled by the string table functions.
5954 Also modified the multi byte string table handling. Now there is
5955 a 'global mask' which masks out certain types. The table itself
5956 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5957 is useful when for example there is only one permissible type
5958 (as in countryName) and using the mask might result in no valid
5962 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5963 SSL_get_peer_finished to allow applications to obtain the latest
5964 Finished messages sent to the peer or expected from the peer,
5965 respectively. (SSL_get_peer_finished is usually the Finished message
5966 actually received from the peer, otherwise the protocol will be aborted.)
5968 As the Finished message are message digests of the complete handshake
5969 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5970 be used for external authentication procedures when the authentication
5971 provided by SSL/TLS is not desired or is not enough.
5974 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5975 the host supports BWX extension and if Compaq C is present on the
5976 $PATH. Just exploiting of the BWX extension results in 20-30%
5977 performance kick for some algorithms, e.g. DES and RC4 to mention
5978 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5982 *) Add support for MS "fast SGC". This is arguably a violation of the
5983 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5984 weak crypto and after checking the certificate is SGC a second one
5985 with strong crypto. MS SGC stops the first handshake after receiving
5986 the server certificate message and sends a second client hello. Since
5987 a server will typically do all the time consuming operations before
5988 expecting any further messages from the client (server key exchange
5989 is the most expensive) there is little difference between the two.
5991 To get OpenSSL to support MS SGC we have to permit a second client
5992 hello message after we have sent server done. In addition we have to
5993 reset the MAC if we do get this second client hello.
5996 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5997 if a DER encoded private key is RSA or DSA traditional format. Changed
5998 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5999 format DER encoded private key. Newer code should use PKCS#8 format which
6000 has the key type encoded in the ASN1 structure. Added DER private key
6001 support to pkcs8 application.
6004 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6005 ciphersuites has been selected (as required by the SSL 3/TLS 1
6006 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6007 is set, we interpret this as a request to violate the specification
6008 (the worst that can happen is a handshake failure, and 'correct'
6009 behaviour would result in a handshake failure anyway).
6012 *) In SSL_CTX_add_session, take into account that there might be multiple
6013 SSL_SESSION structures with the same session ID (e.g. when two threads
6014 concurrently obtain them from an external cache).
6015 The internal cache can handle only one SSL_SESSION with a given ID,
6016 so if there's a conflict, we now throw out the old one to achieve
6020 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6021 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6022 some routines that use cipher OIDs: some ciphers do not have OIDs
6023 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6027 *) Simplify the trust setting structure and code. Now we just have
6028 two sequences of OIDs for trusted and rejected settings. These will
6029 typically have values the same as the extended key usage extension
6030 and any application specific purposes.
6032 The trust checking code now has a default behaviour: it will just
6033 check for an object with the same NID as the passed id. Functions can
6034 be provided to override either the default behaviour or the behaviour
6035 for a given id. SSL client, server and email already have functions
6036 in place for compatibility: they check the NID and also return "trusted"
6037 if the certificate is self signed.
6040 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6041 traditional format into an EVP_PKEY structure.
6044 *) Add a password callback function PEM_cb() which either prompts for
6045 a password if usr_data is NULL or otherwise assumes it is a null
6046 terminated password. Allow passwords to be passed on command line
6047 environment or config files in a few more utilities.
6050 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6051 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6052 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6053 Update documentation.
6056 *) Support for ASN1 "NULL" type. This could be handled before by using
6057 ASN1_TYPE but there wasn't any function that would try to read a NULL
6058 and produce an error if it couldn't. For compatibility we also have
6059 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6060 don't allocate anything because they don't need to.
6063 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6065 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6067 *) Rebuild of the memory allocation routines used by OpenSSL code and
6068 possibly others as well. The purpose is to make an interface that
6069 provide hooks so anyone can build a separate set of allocation and
6070 deallocation routines to be used by OpenSSL, for example memory
6071 pool implementations, or something else, which was previously hard
6072 since Malloc(), Realloc() and Free() were defined as macros having
6073 the values malloc, realloc and free, respectively (except for Win32
6074 compilations). The same is provided for memory debugging code.
6075 OpenSSL already comes with functionality to find memory leaks, but
6076 this gives people a chance to debug other memory problems.
6078 With these changes, a new set of functions and macros have appeared:
6080 CRYPTO_set_mem_debug_functions() [F]
6081 CRYPTO_get_mem_debug_functions() [F]
6082 CRYPTO_dbg_set_options() [F]
6083 CRYPTO_dbg_get_options() [F]
6084 CRYPTO_malloc_debug_init() [M]
6086 The memory debug functions are NULL by default, unless the library
6087 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6088 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6089 gives the standard debugging functions that come with OpenSSL) or
6090 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6091 provided by the library user) must be used. When the standard
6092 debugging functions are used, CRYPTO_dbg_set_options can be used to
6093 request additional information:
6094 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6095 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6097 Also, things like CRYPTO_set_mem_functions will always give the
6098 expected result (the new set of functions is used for allocation
6099 and deallocation) at all times, regardless of platform and compiler
6102 To finish it up, some functions that were never use in any other
6103 way than through macros have a new API and new semantic:
6106 CRYPTO_dbg_realloc()
6109 All macros of value have retained their old syntax.
6110 [Richard Levitte and Bodo Moeller]
6112 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6113 ordering of SMIMECapabilities wasn't in "strength order" and there
6114 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6118 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6119 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6120 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6122 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6123 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6124 functionality to handle multipart/signed properly) and a utility
6125 called 'smime' to call all this stuff. This is based on code I
6126 originally wrote for Celo who have kindly allowed it to be
6127 included in OpenSSL.
6130 *) Add variants des_set_key_checked and des_set_key_unchecked of
6131 des_set_key (aka des_key_sched). Global variable des_check_key
6132 decides which of these is called by des_set_key; this way
6133 des_check_key behaves as it always did, but applications and
6134 the library itself, which was buggy for des_check_key == 1,
6135 have a cleaner way to pick the version they need.
6138 *) New function PKCS12_newpass() which changes the password of a
6142 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6143 dynamic mix. In both cases the ids can be used as an index into the
6144 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6145 functions so they accept a list of the field values and the
6146 application doesn't need to directly manipulate the X509_TRUST
6150 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6154 *) Modify the way the V3 extension code looks up extensions. This now
6155 works in a similar way to the object code: we have some "standard"
6156 extensions in a static table which is searched with OBJ_bsearch()
6157 and the application can add dynamic ones if needed. The file
6158 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6159 updated whenever a new extension is added to the core code and kept
6160 in ext_nid order. There is a simple program 'tabtest.c' which checks
6161 this. New extensions are not added too often so this file can readily
6162 be maintained manually.
6164 There are two big advantages in doing things this way. The extensions
6165 can be looked up immediately and no longer need to be "added" using
6166 X509V3_add_standard_extensions(): this function now does nothing.
6167 [Side note: I get *lots* of email saying the extension code doesn't
6168 work because people forget to call this function]
6169 Also no dynamic allocation is done unless new extensions are added:
6170 so if we don't add custom extensions there is no need to call
6171 X509V3_EXT_cleanup().
6174 *) Modify enc utility's salting as follows: make salting the default. Add a
6175 magic header, so unsalted files fail gracefully instead of just decrypting
6176 to garbage. This is because not salting is a big security hole, so people
6177 should be discouraged from doing it.
6180 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6181 digest to be passed on the command line but it only used this
6182 parameter when signing a certificate. Modified so all relevant
6183 operations are affected by the digest parameter including the
6184 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6185 DSA key was used because it didn't fix the digest.
6188 *) Initial certificate chain verify code. Currently tests the untrusted
6189 certificates for consistency with the verify purpose (which is set
6190 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6192 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6193 this is because it will reject chains with invalid extensions whereas
6194 every previous version of OpenSSL and SSLeay made no checks at all.
6196 Trust code: checks the root CA for the relevant trust settings. Trust
6197 settings have an initial value consistent with the verify purpose: e.g.
6198 if the verify purpose is for SSL client use it expects the CA to be
6199 trusted for SSL client use. However the default value can be changed to
6200 permit custom trust settings: one example of this would be to only trust
6201 certificates from a specific "secure" set of CAs.
6203 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6204 which should be used for version portability: especially since the
6205 verify structure is likely to change more often now.
6207 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6208 to set them. If not set then assume SSL clients will verify SSL servers
6211 Two new options to the verify program: -untrusted allows a set of
6212 untrusted certificates to be passed in and -purpose which sets the
6213 intended purpose of the certificate. If a purpose is set then the
6214 new chain verify code is used to check extension consistency.
6217 *) Support for the authority information access extension.
6220 *) Modify RSA and DSA PEM read routines to transparently handle
6221 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6222 public keys in a format compatible with certificate
6223 SubjectPublicKeyInfo structures. Unfortunately there were already
6224 functions called *_PublicKey_* which used various odd formats so
6225 these are retained for compatibility: however the DSA variants were
6226 never in a public release so they have been deleted. Changed dsa/rsa
6227 utilities to handle the new format: note no releases ever handled public
6228 keys so we should be OK.
6230 The primary motivation for this change is to avoid the same fiasco
6231 that dogs private keys: there are several incompatible private key
6232 formats some of which are standard and some OpenSSL specific and
6233 require various evil hacks to allow partial transparent handling and
6234 even then it doesn't work with DER formats. Given the option anything
6235 other than PKCS#8 should be dumped: but the other formats have to
6236 stay in the name of compatibility.
6238 With public keys and the benefit of hindsight one standard format
6239 is used which works with EVP_PKEY, RSA or DSA structures: though
6240 it clearly returns an error if you try to read the wrong kind of key.
6242 Added a -pubkey option to the 'x509' utility to output the public key.
6243 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6244 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6245 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6246 that do the same as the EVP_PKEY_assign_*() except they up the
6247 reference count of the added key (they don't "swallow" the
6251 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6252 CRLs would fail if the file contained no certificates or no CRLs:
6253 added a new function to read in both types and return the number
6254 read: this means that if none are read it will be an error. The
6255 DER versions of the certificate and CRL reader would always fail
6256 because it isn't possible to mix certificates and CRLs in DER format
6257 without choking one or the other routine. Changed this to just read
6258 a certificate: this is the best we can do. Also modified the code
6259 in apps/verify.c to take notice of return codes: it was previously
6260 attempting to read in certificates from NULL pointers and ignoring
6261 any errors: this is one reason why the cert and CRL reader seemed
6262 to work. It doesn't check return codes from the default certificate
6263 routines: these may well fail if the certificates aren't installed.
6266 *) Code to support otherName option in GeneralName.
6269 *) First update to verify code. Change the verify utility
6270 so it warns if it is passed a self signed certificate:
6271 for consistency with the normal behaviour. X509_verify
6272 has been modified to it will now verify a self signed
6273 certificate if *exactly* the same certificate appears
6274 in the store: it was previously impossible to trust a
6275 single self signed certificate. This means that:
6276 openssl verify ss.pem
6277 now gives a warning about a self signed certificate but
6278 openssl verify -CAfile ss.pem ss.pem
6282 *) For servers, store verify_result in SSL_SESSION data structure
6283 (and add it to external session representation).
6284 This is needed when client certificate verifications fails,
6285 but an application-provided verification callback (set by
6286 SSL_CTX_set_cert_verify_callback) allows accepting the session
6287 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6288 but returns 1): When the session is reused, we have to set
6289 ssl->verify_result to the appropriate error code to avoid
6291 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6293 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6294 case in PKCS7_dataInit() where the signed PKCS7 structure
6295 didn't contain any existing data because it was being created.
6296 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6298 *) Add a salt to the key derivation routines in enc.c. This
6299 forms the first 8 bytes of the encrypted file. Also add a
6300 -S option to allow a salt to be input on the command line.
6303 *) New function X509_cmp(). Oddly enough there wasn't a function
6304 to compare two certificates. We do this by working out the SHA1
6305 hash and comparing that. X509_cmp() will be needed by the trust
6309 *) SSL_get1_session() is like SSL_get_session(), but increments
6310 the reference count in the SSL_SESSION returned.
6311 [Geoff Thorpe <geoff@eu.c2.net>]
6313 *) Fix for 'req': it was adding a null to request attributes.
6314 Also change the X509_LOOKUP and X509_INFO code to handle
6315 certificate auxiliary information.
6318 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6322 *) Add the possibility to add extra information to the memory leak
6323 detecting output, to form tracebacks, showing from where each
6324 allocation was originated: CRYPTO_push_info("constant string") adds
6325 the string plus current file name and line number to a per-thread
6326 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6327 is like calling CYRPTO_pop_info() until the stack is empty.
6328 Also updated memory leak detection code to be multi-thread-safe.
6331 *) Add options -text and -noout to pkcs7 utility and delete the
6332 encryption options which never did anything. Update docs.
6335 *) Add options to some of the utilities to allow the pass phrase
6336 to be included on either the command line (not recommended on
6337 OSes like Unix) or read from the environment. Update the
6338 manpages and fix a few bugs.
6341 *) Add a few manpages for some of the openssl commands.
6344 *) Fix the -revoke option in ca. It was freeing up memory twice,
6345 leaking and not finding already revoked certificates.
6348 *) Extensive changes to support certificate auxiliary information.
6349 This involves the use of X509_CERT_AUX structure and X509_AUX
6350 functions. An X509_AUX function such as PEM_read_X509_AUX()
6351 can still read in a certificate file in the usual way but it
6352 will also read in any additional "auxiliary information". By
6353 doing things this way a fair degree of compatibility can be
6354 retained: existing certificates can have this information added
6355 using the new 'x509' options.
6357 Current auxiliary information includes an "alias" and some trust
6358 settings. The trust settings will ultimately be used in enhanced
6359 certificate chain verification routines: currently a certificate
6360 can only be trusted if it is self signed and then it is trusted
6364 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6365 The problem was that one of the replacement routines had not been working
6366 since SSLeay releases. For now the offending routine has been replaced
6367 with non-optimised assembler. Even so, this now gives around 95%
6368 performance improvement for 1024 bit RSA signs.
6371 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6372 handling. Most clients have the effective key size in bits equal to
6373 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6374 A few however don't do this and instead use the size of the decrypted key
6375 to determine the RC2 key length and the AlgorithmIdentifier to determine
6376 the effective key length. In this case the effective key length can still
6377 be 40 bits but the key length can be 168 bits for example. This is fixed
6378 by manually forcing an RC2 key into the EVP_PKEY structure because the
6379 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6380 the key length and effective key length are equal.
6383 *) Add a bunch of functions that should simplify the creation of
6384 X509_NAME structures. Now you should be able to do:
6385 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6386 and have it automatically work out the correct field type and fill in
6387 the structures. The more adventurous can try:
6388 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6389 and it will (hopefully) work out the correct multibyte encoding.
6392 *) Change the 'req' utility to use the new field handling and multibyte
6393 copy routines. Before the DN field creation was handled in an ad hoc
6394 way in req, ca, and x509 which was rather broken and didn't support
6395 BMPStrings or UTF8Strings. Since some software doesn't implement
6396 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6397 using the dirstring_type option. See the new comment in the default
6398 openssl.cnf for more info.
6401 *) Make crypto/rand/md_rand.c more robust:
6402 - Assure unique random numbers after fork().
6403 - Make sure that concurrent threads access the global counter and
6404 md serializably so that we never lose entropy in them
6405 or use exactly the same state in multiple threads.
6406 Access to the large state is not always serializable because
6407 the additional locking could be a performance killer, and
6408 md should be large enough anyway.
6411 *) New file apps/app_rand.c with commonly needed functionality
6412 for handling the random seed file.
6414 Use the random seed file in some applications that previously did not:
6416 dsaparam -genkey (which also ignored its '-rand' option),
6419 x509 (when signing).
6420 Except on systems with /dev/urandom, it is crucial to have a random
6421 seed file at least for key creation, DSA signing, and for DH exchanges;
6422 for RSA signatures we could do without one.
6424 gendh and gendsa (unlike genrsa) used to read only the first byte
6425 of each file listed in the '-rand' option. The function as previously
6426 found in genrsa is now in app_rand.c and is used by all programs
6427 that support '-rand'.
6430 *) In RAND_write_file, use mode 0600 for creating files;
6431 don't just chmod when it may be too late.
6434 *) Report an error from X509_STORE_load_locations
6435 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6438 *) New function ASN1_mbstring_copy() this copies a string in either
6439 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6440 into an ASN1_STRING type. A mask of permissible types is passed
6441 and it chooses the "minimal" type to use or an error if not type
6445 *) Add function equivalents to the various macros in asn1.h. The old
6446 macros are retained with an M_ prefix. Code inside the library can
6447 use the M_ macros. External code (including the openssl utility)
6448 should *NOT* in order to be "shared library friendly".
6451 *) Add various functions that can check a certificate's extensions
6452 to see if it usable for various purposes such as SSL client,
6453 server or S/MIME and CAs of these types. This is currently
6454 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6455 verification. Also added a -purpose flag to x509 utility to
6456 print out all the purposes.
6459 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6463 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6464 for, obtain and decode and extension and obtain its critical flag.
6465 This allows all the necessary extension code to be handled in a
6466 single function call.
6469 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6470 platforms. See crypto/rc4/rc4_enc.c for further details.
6473 *) New -noout option to asn1parse. This causes no output to be produced
6474 its main use is when combined with -strparse and -out to extract data
6475 from a file (which may not be in ASN.1 format).
6478 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6479 when producing the local key id.
6480 [Richard Levitte <levitte@stacken.kth.se>]
6482 *) New option -dhparam in s_server. This allows a DH parameter file to be
6483 stated explicitly. If it is not stated then it tries the first server
6484 certificate file. The previous behaviour hard coded the filename
6488 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6489 a public key to be input or output. For example:
6490 openssl rsa -in key.pem -pubout -out pubkey.pem
6491 Also added necessary DSA public key functions to handle this.
6494 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6495 in the message. This was handled by allowing
6496 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6497 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6499 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6500 to the end of the strings whereas this didn't. This would cause problems
6501 if strings read with d2i_ASN1_bytes() were later modified.
6502 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6504 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6505 data and it contains EOF it will end up returning an error. This is
6506 caused by input 46 bytes long. The cause is due to the way base64
6507 BIOs find the start of base64 encoded data. They do this by trying a
6508 trial decode on each line until they find one that works. When they
6509 do a flag is set and it starts again knowing it can pass all the
6510 data directly through the decoder. Unfortunately it doesn't reset
6511 the context it uses. This means that if EOF is reached an attempt
6512 is made to pass two EOFs through the context and this causes the
6513 resulting error. This can also cause other problems as well. As is
6514 usual with these problems it takes *ages* to find and the fix is
6515 trivial: move one line.
6516 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6518 *) Ugly workaround to get s_client and s_server working under Windows. The
6519 old code wouldn't work because it needed to select() on sockets and the
6520 tty (for keypresses and to see if data could be written). Win32 only
6521 supports select() on sockets so we select() with a 1s timeout on the
6522 sockets and then see if any characters are waiting to be read, if none
6523 are present then we retry, we also assume we can always write data to
6524 the tty. This isn't nice because the code then blocks until we've
6525 received a complete line of data and it is effectively polling the
6526 keyboard at 1s intervals: however it's quite a bit better than not
6527 working at all :-) A dedicated Windows application might handle this
6528 with an event loop for example.
6531 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6532 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6533 will be called when RSA_sign() and RSA_verify() are used. This is useful
6534 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6535 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6536 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6537 This necessitated the support of an extra signature type NID_md5_sha1
6538 for SSL signatures and modifications to the SSL library to use it instead
6539 of calling RSA_public_decrypt() and RSA_private_encrypt().
6542 *) Add new -verify -CAfile and -CApath options to the crl program, these
6543 will lookup a CRL issuers certificate and verify the signature in a
6544 similar way to the verify program. Tidy up the crl program so it
6545 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6546 less strict. It will now permit CRL extensions even if it is not
6547 a V2 CRL: this will allow it to tolerate some broken CRLs.
6550 *) Initialize all non-automatic variables each time one of the openssl
6551 sub-programs is started (this is necessary as they may be started
6552 multiple times from the "OpenSSL>" prompt).
6553 [Lennart Bang, Bodo Moeller]
6555 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6556 removing all other RSA functionality (this is what NO_RSA does). This
6557 is so (for example) those in the US can disable those operations covered
6558 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6562 *) Non-copying interface to BIO pairs.
6563 (still largely untested)
6566 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6567 ASCII string. This was handled independently in various places before.
6570 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6571 UTF8 strings a character at a time.
6574 *) Use client_version from client hello to select the protocol
6575 (s23_srvr.c) and for RSA client key exchange verification
6576 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6579 *) Add various utility functions to handle SPKACs, these were previously
6580 handled by poking round in the structure internals. Added new function
6581 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6582 print, verify and generate SPKACs. Based on an original idea from
6583 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6586 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6589 *) Allow the config file extension section to be overwritten on the
6590 command line. Based on an original idea from Massimiliano Pala
6591 <madwolf@comune.modena.it>. The new option is called -extensions
6592 and can be applied to ca, req and x509. Also -reqexts to override
6593 the request extensions in req and -crlexts to override the crl extensions
6597 *) Add new feature to the SPKAC handling in ca. Now you can include
6598 the same field multiple times by preceding it by "XXXX." for example:
6601 this is the same syntax as used in the req config file.
6604 *) Allow certificate extensions to be added to certificate requests. These
6605 are specified in a 'req_extensions' option of the req section of the
6606 config file. They can be printed out with the -text option to req but
6607 are otherwise ignored at present.
6610 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6611 data read consists of only the final block it would not decrypted because
6612 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6613 A misplaced 'break' also meant the decrypted final block might not be
6614 copied until the next read.
6617 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6618 a few extra parameters to the DH structure: these will be useful if
6619 for example we want the value of 'q' or implement X9.42 DH.
6622 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6623 provides hooks that allow the default DSA functions or functions on a
6624 "per key" basis to be replaced. This allows hardware acceleration and
6625 hardware key storage to be handled without major modification to the
6626 library. Also added low level modexp hooks and CRYPTO_EX structure and
6627 associated functions.
6630 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6631 as "read only": it can't be written to and the buffer it points to will
6632 not be freed. Reading from a read only BIO is much more efficient than
6633 a normal memory BIO. This was added because there are several times when
6634 an area of memory needs to be read from a BIO. The previous method was
6635 to create a memory BIO and write the data to it, this results in two
6636 copies of the data and an O(n^2) reading algorithm. There is a new
6637 function BIO_new_mem_buf() which creates a read only memory BIO from
6638 an area of memory. Also modified the PKCS#7 routines to use read only
6642 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6643 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6644 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6645 but a retry condition occured while trying to read the rest.
6648 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6649 NID_pkcs7_encrypted by default: this was wrong since this should almost
6650 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6651 the encrypted data type: this is a more sensible place to put it and it
6652 allows the PKCS#12 code to be tidied up that duplicated this
6656 *) Changed obj_dat.pl script so it takes its input and output files on
6657 the command line. This should avoid shell escape redirection problems
6661 *) Initial support for certificate extension requests, these are included
6662 in things like Xenroll certificate requests. Included functions to allow
6663 extensions to be obtained and added.
6666 *) -crlf option to s_client and s_server for sending newlines as
6667 CRLF (as required by many protocols).
6670 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6672 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6673 [Ralf S. Engelschall]
6675 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6676 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6678 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6682 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6683 DH parameters/keys (q is lost during that conversion, but the resulting
6684 DH parameters contain its length).
6686 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6687 much faster than DH_generate_parameters (which creates parameters
6688 where p = 2*q + 1), and also the smaller q makes DH computations
6689 much more efficient (160-bit exponentiation instead of 1024-bit
6690 exponentiation); so this provides a convenient way to support DHE
6691 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6692 utter importance to use
6693 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6695 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6696 when such DH parameters are used, because otherwise small subgroup
6697 attacks may become possible!
6700 *) Avoid memory leak in i2d_DHparams.
6703 *) Allow the -k option to be used more than once in the enc program:
6704 this allows the same encrypted message to be read by multiple recipients.
6707 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6708 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6709 it will always use the numerical form of the OID, even if it has a short
6713 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6714 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6715 otherwise bn_mod_exp was called. In the case of hardware keys for example
6716 no private key components need be present and it might store extra data
6717 in the RSA structure, which cannot be accessed from bn_mod_exp.
6718 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6719 private key operations.
6722 *) Added support for SPARC Linux.
6725 *) pem_password_cb function type incompatibly changed from
6726 typedef int pem_password_cb(char *buf, int size, int rwflag);
6728 ....(char *buf, int size, int rwflag, void *userdata);
6729 so that applications can pass data to their callbacks:
6730 The PEM[_ASN1]_{read,write}... functions and macros now take an
6731 additional void * argument, which is just handed through whenever
6732 the password callback is called.
6733 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6735 New function SSL_CTX_set_default_passwd_cb_userdata.
6737 Compatibility note: As many C implementations push function arguments
6738 onto the stack in reverse order, the new library version is likely to
6739 interoperate with programs that have been compiled with the old
6740 pem_password_cb definition (PEM_whatever takes some data that
6741 happens to be on the stack as its last argument, and the callback
6742 just ignores this garbage); but there is no guarantee whatsoever that
6745 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6746 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6747 problems not only on Windows, but also on some Unix platforms.
6748 To avoid problematic command lines, these definitions are now in an
6749 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6750 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6753 *) MIPS III/IV assembler module is reimplemented.
6756 *) More DES library cleanups: remove references to srand/rand and
6757 delete an unused file.
6760 *) Add support for the the free Netwide assembler (NASM) under Win32,
6761 since not many people have MASM (ml) and it can be hard to obtain.
6762 This is currently experimental but it seems to work OK and pass all
6763 the tests. Check out INSTALL.W32 for info.
6766 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6767 without temporary keys kept an extra copy of the server key,
6768 and connections with temporary keys did not free everything in case
6772 *) New function RSA_check_key and new openssl rsa option -check
6773 for verifying the consistency of RSA keys.
6774 [Ulf Moeller, Bodo Moeller]
6776 *) Various changes to make Win32 compile work:
6777 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6778 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6779 comparison" warnings.
6780 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6783 *) Add a debugging option to PKCS#5 v2 key generation function: when
6784 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6785 derived keys are printed to stderr.
6788 *) Copy the flags in ASN1_STRING_dup().
6789 [Roman E. Pavlov <pre@mo.msk.ru>]
6791 *) The x509 application mishandled signing requests containing DSA
6792 keys when the signing key was also DSA and the parameters didn't match.
6794 It was supposed to omit the parameters when they matched the signing key:
6795 the verifying software was then supposed to automatically use the CA's
6796 parameters if they were absent from the end user certificate.
6798 Omitting parameters is no longer recommended. The test was also
6799 the wrong way round! This was probably due to unusual behaviour in
6800 EVP_cmp_parameters() which returns 1 if the parameters match.
6801 This meant that parameters were omitted when they *didn't* match and
6802 the certificate was useless. Certificates signed with 'ca' didn't have
6804 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6806 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6807 The interface is as follows:
6808 Applications can use
6809 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6810 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6811 "off" is now the default.
6812 The library internally uses
6813 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6814 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6815 to disable memory-checking temporarily.
6817 Some inconsistent states that previously were possible (and were
6818 even the default) are now avoided.
6820 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6821 with each memory chunk allocated; this is occasionally more helpful
6822 than just having a counter.
6824 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6826 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6830 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6831 which largely parallels "options", but is for changing API behaviour,
6832 whereas "options" are about protocol behaviour.
6833 Initial "mode" flags are:
6835 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6836 a single record has been written.
6837 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6838 retries use the same buffer location.
6839 (But all of the contents must be
6843 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6846 *) Fix problems with no-hmac etc.
6847 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6849 *) New functions RSA_get_default_method(), RSA_set_method() and
6850 RSA_get_method(). These allows replacement of RSA_METHODs without having
6851 to mess around with the internals of an RSA structure.
6854 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6855 Also really enable memory leak checks in openssl.c and in some
6857 [Chad C. Mulligan, Bodo Moeller]
6859 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6860 up the length of negative integers. This has now been simplified to just
6861 store the length when it is first determined and use it later, rather
6862 than trying to keep track of where data is copied and updating it to
6864 [Steve Henson, reported by Brien Wheeler
6865 <bwheeler@authentica-security.com>]
6867 *) Add a new function PKCS7_signatureVerify. This allows the verification
6868 of a PKCS#7 signature but with the signing certificate passed to the
6869 function itself. This contrasts with PKCS7_dataVerify which assumes the
6870 certificate is present in the PKCS#7 structure. This isn't always the
6871 case: certificates can be omitted from a PKCS#7 structure and be
6872 distributed by "out of band" means (such as a certificate database).
6875 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6876 function prototypes in pem.h, also change util/mkdef.pl to add the
6877 necessary function names.
6880 *) mk1mf.pl (used by Windows builds) did not properly read the
6881 options set by Configure in the top level Makefile, and Configure
6882 was not even able to write more than one option correctly.
6883 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6886 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6887 file to be loaded from a BIO or FILE pointer. The BIO version will
6888 for example allow memory BIOs to contain config info.
6891 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6892 Whoever hopes to achieve shared-library compatibility across versions
6893 must use this, not the compile-time macro.
6894 (Exercise 0.9.4: Which is the minimum library version required by
6896 Note: All this applies only to multi-threaded programs, others don't
6900 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6901 through a BIO pair triggered the default case, i.e.
6902 SSLerr(...,SSL_R_UNKNOWN_STATE).
6905 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6906 can use the SSL library even if none of the specific BIOs is
6910 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6911 for the encoded length.
6912 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6914 *) Add initial documentation of the X509V3 functions.
6917 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6918 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6919 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6920 secure PKCS#8 private key format with a high iteration count.
6923 *) Fix determination of Perl interpreter: A perl or perl5
6924 _directory_ in $PATH was also accepted as the interpreter.
6925 [Ralf S. Engelschall]
6927 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6928 wrong with it but it was very old and did things like calling
6929 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6933 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6934 to use the new extension code.
6937 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6938 with macros. This should make it easier to change their form, add extra
6939 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6943 *) Add to configuration table a new entry that can specify an alternative
6944 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6945 according to Mark Crispin <MRC@Panda.COM>.
6949 *) DES CBC did not update the IV. Weird.
6952 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6953 Changing the behaviour of the former might break existing programs --
6954 where IV updating is needed, des_ncbc_encrypt can be used.
6957 *) When bntest is run from "make test" it drives bc to check its
6958 calculations, as well as internally checking them. If an internal check
6959 fails, it needs to cause bc to give a non-zero result or make test carries
6960 on without noticing the failure. Fixed.
6963 *) DES library cleanups.
6966 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6967 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6968 ciphers. NOTE: although the key derivation function has been verified
6969 against some published test vectors it has not been extensively tested
6970 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6974 *) Instead of "mkdir -p", which is not fully portable, use new
6975 Perl script "util/mkdir-p.pl".
6978 *) Rewrite the way password based encryption (PBE) is handled. It used to
6979 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6980 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6981 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6982 the 'parameter' field of the AlgorithmIdentifier is passed to the
6983 underlying key generation function so it must do its own ASN1 parsing.
6984 This has also changed the EVP_PBE_CipherInit() function which now has a
6985 'parameter' argument instead of literal salt and iteration count values
6986 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6989 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6990 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6991 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6992 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6993 value was just used as a "magic string" and not used directly its
6994 value doesn't matter.
6997 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7001 *) "linux-sparc64" configuration (ultrapenguin).
7002 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7003 "linux-sparc" configuration.
7004 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7006 *) config now generates no-xxx options for missing ciphers.
7009 *) Support the EBCDIC character set (work in progress).
7010 File ebcdic.c not yet included because it has a different license.
7011 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7013 *) Support BS2000/OSD-POSIX.
7014 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7016 *) Make callbacks for key generation use void * instead of char *.
7019 *) Make S/MIME samples compile (not yet tested).
7022 *) Additional typesafe stacks.
7025 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7029 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7031 *) New configuration variant "sco5-gcc".
7033 *) Updated some demos.
7034 [Sean O Riordain, Wade Scholine]
7036 *) Add missing BIO_free at exit of pkcs12 application.
7039 *) Fix memory leak in conf.c.
7042 *) Updates for Win32 to assembler version of MD5.
7045 *) Set #! path to perl in apps/der_chop to where we found it
7046 instead of using a fixed path.
7049 *) SHA library changes for irix64-mips4-cc.
7052 *) Improvements for VMS support.
7056 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7058 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7059 This also avoids the problems with SC4.2 and unpatched SC5.
7060 [Andy Polyakov <appro@fy.chalmers.se>]
7062 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7063 These are required because of the typesafe stack would otherwise break
7064 existing code. If old code used a structure member which used to be STACK
7065 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7066 sk_num or sk_value it would produce an error because the num, data members
7067 are not present in STACK_OF. Now it just produces a warning. sk_set
7068 replaces the old method of assigning a value to sk_value
7069 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7070 that does this will no longer work (and should use sk_set instead) but
7071 this could be regarded as a "questionable" behaviour anyway.
7074 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7075 correctly handle encrypted S/MIME data.
7078 *) Change type of various DES function arguments from des_cblock
7079 (which means, in function argument declarations, pointer to char)
7080 to des_cblock * (meaning pointer to array with 8 char elements),
7081 which allows the compiler to do more typechecking; it was like
7082 that back in SSLeay, but with lots of ugly casts.
7084 Introduce new type const_des_cblock.
7087 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7088 problems: find RecipientInfo structure that matches recipient certificate
7089 and initialise the ASN1 structures properly based on passed cipher.
7092 *) Belatedly make the BN tests actually check the results.
7095 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7096 to and from BNs: it was completely broken. New compilation option
7097 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7098 key elements as negative integers.
7101 *) Reorganize and speed up MD5.
7102 [Andy Polyakov <appro@fy.chalmers.se>]
7105 [Richard Levitte <richard@levitte.org>]
7107 *) New option -out to asn1parse to allow the parsed structure to be
7108 output to a file. This is most useful when combined with the -strparse
7109 option to examine the output of things like OCTET STRINGS.
7112 *) Make SSL library a little more fool-proof by not requiring any longer
7113 that SSL_set_{accept,connect}_state be called before
7114 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7115 in many applications because usually everything *appeared* to work as
7116 intended anyway -- now it really works as intended).
7119 *) Move openssl.cnf out of lib/.
7122 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7123 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7124 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7125 [Ralf S. Engelschall]
7127 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7128 handle PKCS#7 enveloped data properly.
7129 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7131 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7132 copying pointers. The cert_st handling is changed by this in
7133 various ways (and thus what used to be known as ctx->default_cert
7134 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7135 any longer when s->cert does not give us what we need).
7136 ssl_cert_instantiate becomes obsolete by this change.
7137 As soon as we've got the new code right (possibly it already is?),
7138 we have solved a couple of bugs of the earlier code where s->cert
7139 was used as if it could not have been shared with other SSL structures.
7141 Note that using the SSL API in certain dirty ways now will result
7142 in different behaviour than observed with earlier library versions:
7143 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7144 does not influence s as it used to.
7146 In order to clean up things more thoroughly, inside SSL_SESSION
7147 we don't use CERT any longer, but a new structure SESS_CERT
7148 that holds per-session data (if available); currently, this is
7149 the peer's certificate chain and, for clients, the server's certificate
7150 and temporary key. CERT holds only those values that can have
7151 meaningful defaults in an SSL_CTX.
7154 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7155 from the internal representation. Various PKCS#7 fixes: remove some
7156 evil casts and set the enc_dig_alg field properly based on the signing
7160 *) Allow PKCS#12 password to be set from the command line or the
7161 environment. Let 'ca' get its config file name from the environment
7162 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7166 *) Allow certificate policies extension to use an IA5STRING for the
7167 organization field. This is contrary to the PKIX definition but
7168 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7172 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7173 without disallowing inline assembler and the like for non-pedantic builds.
7176 *) Support Borland C++ builder.
7177 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7182 *) SHA-1 cleanups and performance enhancements.
7183 [Andy Polyakov <appro@fy.chalmers.se>]
7185 *) Sparc v8plus assembler for the bignum library.
7186 [Andy Polyakov <appro@fy.chalmers.se>]
7188 *) Accept any -xxx and +xxx compiler options in Configure.
7191 *) Update HPUX configuration.
7194 *) Add missing sk_<type>_unshift() function to safestack.h
7195 [Ralf S. Engelschall]
7197 *) New function SSL_CTX_use_certificate_chain_file that sets the
7198 "extra_cert"s in addition to the certificate. (This makes sense
7199 only for "PEM" format files, as chains as a whole are not
7203 *) Support verify_depth from the SSL API.
7204 x509_vfy.c had what can be considered an off-by-one-error:
7205 Its depth (which was not part of the external interface)
7206 was actually counting the number of certificates in a chain;
7207 now it really counts the depth.
7210 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7211 instead of X509err, which often resulted in confusing error
7212 messages since the error codes are not globally unique
7213 (e.g. an alleged error in ssl3_accept when a certificate
7214 didn't match the private key).
7216 *) New function SSL_CTX_set_session_id_context that allows to set a default
7217 value (so that you don't need SSL_set_session_id_context for each
7218 connection using the SSL_CTX).
7221 *) OAEP decoding bug fix.
7224 *) Support INSTALL_PREFIX for package builders, as proposed by
7228 *) New Configure options "threads" and "no-threads". For systems
7229 where the proper compiler options are known (currently Solaris
7230 and Linux), "threads" is the default.
7233 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7236 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7237 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7238 such as /usr/local/bin.
7241 *) "make linux-shared" to build shared libraries.
7242 [Niels Poppe <niels@netbox.org>]
7244 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7247 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7248 extension adding in x509 utility.
7251 *) Remove NOPROTO sections and error code comments.
7254 *) Partial rewrite of the DEF file generator to now parse the ANSI
7258 *) New Configure options --prefix=DIR and --openssldir=DIR.
7261 *) Complete rewrite of the error code script(s). It is all now handled
7262 by one script at the top level which handles error code gathering,
7263 header rewriting and C source file generation. It should be much better
7264 than the old method: it now uses a modified version of Ulf's parser to
7265 read the ANSI prototypes in all header files (thus the old K&R definitions
7266 aren't needed for error creation any more) and do a better job of
7267 translating function codes into names. The old 'ASN1 error code imbedded
7268 in a comment' is no longer necessary and it doesn't use .err files which
7269 have now been deleted. Also the error code call doesn't have to appear all
7270 on one line (which resulted in some large lines...).
7273 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7276 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7277 0 (which usually indicates a closed connection), but continue reading.
7280 *) Fix some race conditions.
7283 *) Add support for CRL distribution points extension. Add Certificate
7284 Policies and CRL distribution points documentation.
7287 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7290 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7291 8 of keying material. Merlin has also confirmed interop with this fix
7292 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7293 [Merlin Hughes <merlin@baltimore.ie>]
7295 *) Fix lots of warnings.
7296 [Richard Levitte <levitte@stacken.kth.se>]
7298 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7299 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7300 [Richard Levitte <levitte@stacken.kth.se>]
7302 *) Fix problems with sizeof(long) == 8.
7303 [Andy Polyakov <appro@fy.chalmers.se>]
7305 *) Change functions to ANSI C.
7308 *) Fix typos in error codes.
7309 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7311 *) Remove defunct assembler files from Configure.
7314 *) SPARC v8 assembler BIGNUM implementation.
7315 [Andy Polyakov <appro@fy.chalmers.se>]
7317 *) Support for Certificate Policies extension: both print and set.
7318 Various additions to support the r2i method this uses.
7321 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7322 return a const string when you are expecting an allocated buffer.
7325 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7326 types DirectoryString and DisplayText.
7329 *) Add code to allow r2i extensions to access the configuration database,
7330 add an LHASH database driver and add several ctx helper functions.
7333 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7334 fail when they extended the size of a BIGNUM.
7337 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7338 support typesafe stack.
7341 *) Fix typo in SSL_[gs]et_options().
7342 [Nils Frostberg <nils@medcom.se>]
7344 *) Delete various functions and files that belonged to the (now obsolete)
7345 old X509V3 handling code.
7348 *) New Configure option "rsaref".
7351 *) Don't auto-generate pem.h.
7354 *) Introduce type-safe ASN.1 SETs.
7357 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7358 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7360 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7361 that links with OpenSSL (well at least cause lots of warnings), but fear
7362 not: the conversion is trivial, and it eliminates loads of evil casts. A
7363 few STACKed things have been converted already. Feel free to convert more.
7364 In the fullness of time, I'll do away with the STACK type altogether.
7367 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7368 specified in <certfile> by updating the entry in the index.txt file.
7369 This way one no longer has to edit the index.txt file manually for
7370 revoking a certificate. The -revoke option does the gory details now.
7371 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7373 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7374 `-text' option at all and this way the `-noout -text' combination was
7375 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7376 [Ralf S. Engelschall]
7378 *) Make sure a corresponding plain text error message exists for the
7379 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7380 verify callback function determined that a certificate was revoked.
7381 [Ralf S. Engelschall]
7383 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7384 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7385 all available cipers including rc5, which was forgotten until now.
7386 In order to let the testing shell script know which algorithms
7387 are available, a new (up to now undocumented) command
7388 "openssl list-cipher-commands" is used.
7391 *) Bugfix: s_client occasionally would sleep in select() when
7392 it should have checked SSL_pending() first.
7395 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7396 the raw DSA values prior to ASN.1 encoding.
7399 *) Tweaks to Configure
7400 [Niels Poppe <niels@netbox.org>]
7402 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7406 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7409 *) New config option to avoid instructions that are illegal on the 80386.
7410 The default code is faster, but requires at least a 486.
7413 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7414 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7415 same as SSL2_VERSION anyway.
7418 *) New "-showcerts" option for s_client.
7421 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7422 application. Various cleanups and fixes.
7425 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7426 modify error routines to work internally. Add error codes and PBE init
7427 to library startup routines.
7430 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7431 packing functions to asn1 and evp. Changed function names and error
7432 codes along the way.
7435 *) PKCS12 integration: and so it begins... First of several patches to
7436 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7437 objects to objects.h
7440 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7441 and display support for Thawte strong extranet extension.
7444 *) Add LinuxPPC support.
7445 [Jeff Dubrule <igor@pobox.org>]
7447 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7448 bn_div_words in alpha.s.
7449 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7451 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7452 OAEP isn't supported when OpenSSL is built with RSAref.
7453 [Ulf Moeller <ulf@fitug.de>]
7455 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7456 so they no longer are missing under -DNOPROTO.
7457 [Soren S. Jorvang <soren@t.dk>]
7460 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7462 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7463 doesn't work when the session is reused. Coming soon!
7466 *) Fix a security hole, that allows sessions to be reused in the wrong
7467 context thus bypassing client cert protection! All software that uses
7468 client certs and session caches in multiple contexts NEEDS PATCHING to
7469 allow session reuse! A fuller solution is in the works.
7470 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7472 *) Some more source tree cleanups (removed obsolete files
7473 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7474 permission on "config" script to be executable) and a fix for the INSTALL
7476 [Ulf Moeller <ulf@fitug.de>]
7478 *) Remove some legacy and erroneous uses of malloc, free instead of
7480 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7482 *) Make rsa_oaep_test return non-zero on error.
7483 [Ulf Moeller <ulf@fitug.de>]
7485 *) Add support for native Solaris shared libraries. Configure
7486 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7487 if someone would make that last step automatic.
7488 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7490 *) ctx_size was not built with the right compiler during "make links". Fixed.
7493 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7494 except NULL ciphers". This means the default cipher list will no longer
7495 enable NULL ciphers. They need to be specifically enabled e.g. with
7496 the string "DEFAULT:eNULL".
7499 *) Fix to RSA private encryption routines: if p < q then it would
7500 occasionally produce an invalid result. This will only happen with
7501 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7504 *) Be less restrictive and allow also `perl util/perlpath.pl
7505 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7506 because this way one can also use an interpreter named `perl5' (which is
7507 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7508 installed as `perl').
7509 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7511 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7512 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7514 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7515 advapi32.lib to Win32 build and change the pem test comparision
7516 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7517 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7518 and crypto/des/ede_cbcm_enc.c.
7521 *) DES quad checksum was broken on big-endian architectures. Fixed.
7524 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7525 Win32 test batch file so it (might) work again. The Win32 test batch file
7526 is horrible: I feel ill....
7529 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7530 in e_os.h. Audit of header files to check ANSI and non ANSI
7531 sections: 10 functions were absent from non ANSI section and not exported
7532 from Windows DLLs. Fixed up libeay.num for new functions.
7535 *) Make `openssl version' output lines consistent.
7536 [Ralf S. Engelschall]
7538 *) Fix Win32 symbol export lists for BIO functions: Added
7539 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7540 to ms/libeay{16,32}.def.
7541 [Ralf S. Engelschall]
7543 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7544 fine under Unix and passes some trivial tests I've now added. But the
7545 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7546 added to make sure no one expects that this stuff really works in the
7547 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7548 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7550 [Ralf S. Engelschall]
7552 *) Fix the generation of two part addresses in perl.
7553 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7555 *) Add config entry for Linux on MIPS.
7556 [John Tobey <jtobey@channel1.com>]
7558 *) Make links whenever Configure is run, unless we are on Windoze.
7561 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7562 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7566 *) Add a useful kludge to allow package maintainers to specify compiler and
7567 other platforms details on the command line without having to patch the
7568 Configure script everytime: One now can use ``perl Configure
7569 <id>:<details>'', i.e. platform ids are allowed to have details appended
7570 to them (seperated by colons). This is treated as there would be a static
7571 pre-configured entry in Configure's %table under key <id> with value
7572 <details> and ``perl Configure <id>'' is called. So, when you want to
7573 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7574 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7575 now, which overrides the FreeBSD-elf entry on-the-fly.
7576 [Ralf S. Engelschall]
7578 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7581 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7582 on the `perl Configure ...' command line. This way one can compile
7583 OpenSSL libraries with Position Independent Code (PIC) which is needed
7584 for linking it into DSOs.
7585 [Ralf S. Engelschall]
7587 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7591 *) Cleaned up the LICENSE document: The official contact for any license
7592 questions now is the OpenSSL core team under openssl-core@openssl.org.
7593 And add a paragraph about the dual-license situation to make sure people
7594 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7595 to the OpenSSL toolkit.
7596 [Ralf S. Engelschall]
7598 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7599 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7600 Additonally cleaned up the `make links' target: Remove unnecessary
7601 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7602 to speed processing and no longer clutter the display with confusing
7603 stuff. Instead only the actually done links are displayed.
7604 [Ralf S. Engelschall]
7606 *) Permit null encryption ciphersuites, used for authentication only. It used
7607 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7608 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7612 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7613 signed attributes when verifying signatures (this would break them),
7614 the detached data encoding was wrong and public keys obtained using
7615 X509_get_pubkey() weren't freed.
7618 *) Add text documentation for the BUFFER functions. Also added a work around
7619 to a Win95 console bug. This was triggered by the password read stuff: the
7620 last character typed gets carried over to the next fread(). If you were
7621 generating a new cert request using 'req' for example then the last
7622 character of the passphrase would be CR which would then enter the first
7626 *) Added the new `Includes OpenSSL Cryptography Software' button as
7627 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7628 button and can be used by applications based on OpenSSL to show the
7629 relationship to the OpenSSL project.
7630 [Ralf S. Engelschall]
7632 *) Remove confusing variables in function signatures in files
7633 ssl/ssl_lib.c and ssl/ssl.h.
7634 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7636 *) Don't install bss_file.c under PREFIX/include/
7637 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7639 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7640 functions that return function pointers and has support for NT specific
7641 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7642 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7643 unsigned to signed types: this was killing the Win32 compile.
7646 *) Add new certificate file to stack functions,
7647 SSL_add_dir_cert_subjects_to_stack() and
7648 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7649 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7650 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7651 This means that Apache-SSL and similar packages don't have to mess around
7652 to add as many CAs as they want to the preferred list.
7655 *) Experiment with doxygen documentation. Currently only partially applied to
7657 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7658 openssl.doxy as the configuration file.
7661 *) Get rid of remaining C++-style comments which strict C compilers hate.
7662 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7664 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7665 compiled in by default: it has problems with large keys.
7668 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7669 DH private keys and/or callback functions which directly correspond to
7670 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7671 is needed for applications which have to configure certificates on a
7672 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7674 For the RSA certificate situation is makes no difference, but
7675 for the DSA certificate situation this fixes the "no shared cipher"
7676 problem where the OpenSSL cipher selection procedure failed because the
7677 temporary keys were not overtaken from the context and the API provided
7678 no way to reconfigure them.
7679 The new functions now let applications reconfigure the stuff and they
7680 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7681 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7682 non-public-API function ssl_cert_instantiate() is used as a helper
7683 function and also to reduce code redundancy inside ssl_rsa.c.
7684 [Ralf S. Engelschall]
7686 *) Move s_server -dcert and -dkey options out of the undocumented feature
7687 area because they are useful for the DSA situation and should be
7688 recognized by the users.
7689 [Ralf S. Engelschall]
7691 *) Fix the cipher decision scheme for export ciphers: the export bits are
7692 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7693 SSL_EXP_MASK. So, the original variable has to be used instead of the
7694 already masked variable.
7695 [Richard Levitte <levitte@stacken.kth.se>]
7697 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7698 [Richard Levitte <levitte@stacken.kth.se>]
7700 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7701 from `int' to `unsigned int' because it's a length and initialized by
7702 EVP_DigestFinal() which expects an `unsigned int *'.
7703 [Richard Levitte <levitte@stacken.kth.se>]
7705 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7706 script. Instead use the usual Shell->Perl transition trick.
7707 [Ralf S. Engelschall]
7709 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7710 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7711 -noout -modulus' as it's already the case for `openssl rsa -noout
7712 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7713 currently the public key is printed (a decision which was already done by
7714 `openssl dsa -modulus' in the past) which serves a similar purpose.
7715 Additionally the NO_RSA no longer completely removes the whole -modulus
7716 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7718 [Ralf S. Engelschall]
7720 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7721 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7722 [Arne Ansper <arne@ats.cyber.ee>]
7724 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7725 to be added. Now both 'req' and 'ca' can use new objects defined in the
7729 *) Add cool BIO that does syslog (or event log on NT).
7730 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7732 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7733 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7734 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7735 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7738 *) Add preliminary config info for new extension code.
7741 *) Make RSA_NO_PADDING really use no padding.
7742 [Ulf Moeller <ulf@fitug.de>]
7744 *) Generate errors when private/public key check is done.
7747 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7748 for some CRL extensions and new objects added.
7751 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7752 key usage extension and fuller support for authority key id.
7755 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7756 padding method for RSA, which is recommended for new applications in PKCS
7757 #1 v2.0 (RFC 2437, October 1998).
7758 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7759 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7760 against Bleichbacher's attack on RSA.
7761 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7764 *) Updates to the new SSL compression code
7765 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7767 *) Fix so that the version number in the master secret, when passed
7768 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7769 (because the server will not accept higher), that the version number
7770 is 0x03,0x01, not 0x03,0x00
7771 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7773 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7774 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7775 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7778 *) Support for RAW extensions where an arbitrary extension can be
7779 created by including its DER encoding. See apps/openssl.cnf for
7783 *) Make sure latest Perl versions don't interpret some generated C array
7784 code as Perl array code in the crypto/err/err_genc.pl script.
7785 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7787 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7788 not many people have the assembler. Various Win32 compilation fixes and
7789 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7793 *) Modify configure script 'Configure' to automatically create crypto/date.h
7794 file under Win32 and also build pem.h from pem.org. New script
7795 util/mkfiles.pl to create the MINFO file on environments that can't do a
7796 'make files': perl util/mkfiles.pl >MINFO should work.
7799 *) Major rework of DES function declarations, in the pursuit of correctness
7800 and purity. As a result, many evil casts evaporated, and some weirdness,
7801 too. You may find this causes warnings in your code. Zapping your evil
7802 casts will probably fix them. Mostly.
7805 *) Fix for a typo in asn1.h. Bug fix to object creation script
7806 obj_dat.pl. It considered a zero in an object definition to mean
7807 "end of object": none of the objects in objects.h have any zeros
7808 so it wasn't spotted.
7809 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7811 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7812 Masking (CBCM). In the absence of test vectors, the best I have been able
7813 to do is check that the decrypt undoes the encrypt, so far. Send me test
7814 vectors if you have them.
7817 *) Correct calculation of key length for export ciphers (too much space was
7818 allocated for null ciphers). This has not been tested!
7821 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7822 message is now correct (it understands "crypto" and "ssl" on its
7823 command line). There is also now an "update" option. This will update
7824 the util/ssleay.num and util/libeay.num files with any new functions.
7826 perl util/mkdef.pl crypto ssl update
7827 it will update them.
7830 *) Overhauled the Perl interface (perl/*):
7831 - ported BN stuff to OpenSSL's different BN library
7832 - made the perl/ source tree CVS-aware
7833 - renamed the package from SSLeay to OpenSSL (the files still contain
7834 their history because I've copied them in the repository)
7835 - removed obsolete files (the test scripts will be replaced
7836 by better Test::Harness variants in the future)
7837 [Ralf S. Engelschall]
7839 *) First cut for a very conservative source tree cleanup:
7840 1. merge various obsolete readme texts into doc/ssleay.txt
7841 where we collect the old documents and readme texts.
7842 2. remove the first part of files where I'm already sure that we no
7843 longer need them because of three reasons: either they are just temporary
7844 files which were left by Eric or they are preserved original files where
7845 I've verified that the diff is also available in the CVS via "cvs diff
7846 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7847 the crypto/md/ stuff).
7848 [Ralf S. Engelschall]
7850 *) More extension code. Incomplete support for subject and issuer alt
7851 name, issuer and authority key id. Change the i2v function parameters
7852 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7853 what that's for :-) Fix to ASN1 macro which messed up
7854 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7857 *) Preliminary support for ENUMERATED type. This is largely copied from the
7861 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7862 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7864 *) Make sure `make rehash' target really finds the `openssl' program.
7865 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7867 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7868 like to hear about it if this slows down other processors.
7871 *) Add CygWin32 platform information to Configure script.
7872 [Alan Batie <batie@aahz.jf.intel.com>]
7874 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7875 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7877 *) New program nseq to manipulate netscape certificate sequences
7880 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7884 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7885 but the BN code had some problems that would cause failures when
7886 doing certificate verification and some other functions.
7887 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7889 *) Add ASN1 and PEM code to support netscape certificate sequences.
7892 *) Add ASN1 and PEM code to support netscape certificate sequences.
7895 *) Add several PKIX and private extended key usage OIDs.
7898 *) Modify the 'ca' program to handle the new extension code. Modify
7899 openssl.cnf for new extension format, add comments.
7902 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7903 and add a sample to openssl.cnf so req -x509 now adds appropriate
7907 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7908 error code, add initial support to X509_print() and x509 application.
7911 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7912 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7913 stuff is currently isolated and isn't even compiled yet.
7916 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7917 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7918 Removed the versions check from X509 routines when loading extensions:
7919 this allows certain broken certificates that don't set the version
7920 properly to be processed.
7923 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7924 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7925 can still be regenerated with "make depend".
7928 *) Spelling mistake in C version of CAST-128.
7929 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7931 *) Changes to the error generation code. The perl script err-code.pl
7932 now reads in the old error codes and retains the old numbers, only
7933 adding new ones if necessary. It also only changes the .err files if new
7934 codes are added. The makefiles have been modified to only insert errors
7935 when needed (to avoid needlessly modifying header files). This is done
7936 by only inserting errors if the .err file is newer than the auto generated
7937 C file. To rebuild all the error codes from scratch (the old behaviour)
7938 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7939 or delete all the .err files.
7942 *) CAST-128 was incorrectly implemented for short keys. The C version has
7943 been fixed, but is untested. The assembler versions are also fixed, but
7944 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7945 to regenerate it if needed.
7946 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7947 Hagino <itojun@kame.net>]
7949 *) File was opened incorrectly in randfile.c.
7950 [Ulf Möller <ulf@fitug.de>]
7952 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7953 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7954 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7955 al: it's just almost always a UTCTime. Note this patch adds new error
7956 codes so do a "make errors" if there are problems.
7959 *) Correct Linux 1 recognition in config.
7960 [Ulf Möller <ulf@fitug.de>]
7962 *) Remove pointless MD5 hash when using DSA keys in ca.
7963 [Anonymous <nobody@replay.com>]
7965 *) Generate an error if given an empty string as a cert directory. Also
7966 generate an error if handed NULL (previously returned 0 to indicate an
7967 error, but didn't set one).
7968 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7970 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7973 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7974 parameters. This was causing a warning which killed off the Win32 compile.
7977 *) Remove C++ style comments from crypto/bn/bn_local.h.
7978 [Neil Costigan <neil.costigan@celocom.com>]
7980 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7981 based on a text string, looking up short and long names and finally
7982 "dot" format. The "dot" format stuff didn't work. Added new function
7983 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7984 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7985 OID is not part of the table.
7988 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7989 X509_LOOKUP_by_alias().
7992 *) Sort openssl functions by name.
7995 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7996 encryption from sample DSA keys (in case anyone is interested the password
8000 *) Make _all_ *_free functions accept a NULL pointer.
8001 [Frans Heymans <fheymans@isaserver.be>]
8003 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8005 [Anonymous <nobody@replay.com>]
8007 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8008 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8010 *) Don't blow it for numeric -newkey arguments to apps/req.
8011 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8013 *) Temp key "for export" tests were wrong in s3_srvr.c.
8014 [Anonymous <nobody@replay.com>]
8016 *) Add prototype for temp key callback functions
8017 SSL_CTX_set_tmp_{rsa,dh}_callback().
8020 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8021 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8024 *) X509_name_add_entry() freed the wrong thing after an error.
8025 [Arne Ansper <arne@ats.cyber.ee>]
8027 *) rsa_eay.c would attempt to free a NULL context.
8028 [Arne Ansper <arne@ats.cyber.ee>]
8030 *) BIO_s_socket() had a broken should_retry() on Windoze.
8031 [Arne Ansper <arne@ats.cyber.ee>]
8033 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8034 [Arne Ansper <arne@ats.cyber.ee>]
8036 *) Make sure the already existing X509_STORE->depth variable is initialized
8037 in X509_STORE_new(), but document the fact that this variable is still
8038 unused in the certificate verification process.
8039 [Ralf S. Engelschall]
8041 *) Fix the various library and apps files to free up pkeys obtained from
8042 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8045 *) Fix reference counting in X509_PUBKEY_get(). This makes
8046 demos/maurice/example2.c work, amongst others, probably.
8047 [Steve Henson and Ben Laurie]
8049 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8050 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8051 are no longer created. This way we have a single and consistent command
8052 line interface `openssl <command>', similar to `cvs <command>'.
8053 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8055 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8056 BIT STRING wrapper always have zero unused bits.
8059 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8062 *) Make the top-level INSTALL documentation easier to understand.
8065 *) Makefiles updated to exit if an error occurs in a sub-directory
8066 make (including if user presses ^C) [Paul Sutton]
8068 *) Make Montgomery context stuff explicit in RSA data structure.
8071 *) Fix build order of pem and err to allow for generated pem.h.
8074 *) Fix renumbering bug in X509_NAME_delete_entry().
8077 *) Enhanced the err-ins.pl script so it makes the error library number
8078 global and can add a library name. This is needed for external ASN1 and
8079 other error libraries.
8082 *) Fixed sk_insert which never worked properly.
8085 *) Fix ASN1 macros so they can handle indefinite length construted
8086 EXPLICIT tags. Some non standard certificates use these: they can now
8090 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8091 into a single doc/ssleay.txt bundle. This way the information is still
8092 preserved but no longer messes up this directory. Now it's new room for
8093 the new set of documenation files.
8094 [Ralf S. Engelschall]
8096 *) SETs were incorrectly DER encoded. This was a major pain, because they
8097 shared code with SEQUENCEs, which aren't coded the same. This means that
8098 almost everything to do with SETs or SEQUENCEs has either changed name or
8099 number of arguments.
8100 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8102 *) Fix test data to work with the above.
8105 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8106 was already fixed by Eric for 0.9.1 it seems.
8107 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8109 *) Autodetect FreeBSD3.
8112 *) Fix various bugs in Configure. This affects the following platforms:
8116 unixware-2.0-pentium
8120 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8121 before they are needed.
8124 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8128 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8130 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8131 changed SSLeay to OpenSSL in version strings.
8132 [Ralf S. Engelschall]
8134 *) Some fixups to the top-level documents.
8137 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8138 because the symlink to include/ was missing.
8139 [Ralf S. Engelschall]
8141 *) Incorporated the popular no-RSA/DSA-only patches
8142 which allow to compile a RSA-free SSLeay.
8143 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8145 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8146 when "ssleay" is still not found.
8147 [Ralf S. Engelschall]
8149 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8150 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8152 *) Updated the README file.
8153 [Ralf S. Engelschall]
8155 *) Added various .cvsignore files in the CVS repository subdirs
8156 to make a "cvs update" really silent.
8157 [Ralf S. Engelschall]
8159 *) Recompiled the error-definition header files and added
8160 missing symbols to the Win32 linker tables.
8161 [Ralf S. Engelschall]
8163 *) Cleaned up the top-level documents;
8164 o new files: CHANGES and LICENSE
8165 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8166 o merged COPYRIGHT into LICENSE
8167 o removed obsolete TODO file
8168 o renamed MICROSOFT to INSTALL.W32
8169 [Ralf S. Engelschall]
8171 *) Removed dummy files from the 0.9.1b source tree:
8172 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8173 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8174 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8175 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8176 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8177 [Ralf S. Engelschall]
8179 *) Added various platform portability fixes.
8182 *) The Genesis of the OpenSSL rpject:
8183 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8184 Young and Tim J. Hudson created while they were working for C2Net until
8186 [The OpenSSL Project]
8189 Changes between 0.9.0b and 0.9.1b [not released]
8191 *) Updated a few CA certificates under certs/
8194 *) Changed some BIGNUM api stuff.
8197 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8198 DGUX x86, Linux Alpha, etc.
8201 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8202 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8206 *) Add -strparse option to asn1pars program which parses nested
8208 [Dr Stephen Henson <shenson@bigfoot.com>]
8210 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8213 *) DSA fix for "ca" program.
8216 *) Added "-genkey" option to "dsaparam" program.
8219 *) Added RIPE MD160 (rmd160) message digest.
8222 *) Added -a (all) option to "ssleay version" command.
8225 *) Added PLATFORM define which is the id given to Configure.
8228 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8231 *) Extended the ASN.1 parser routines.
8234 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8237 *) Added a BN_CTX to the BN library.
8240 *) Fixed the weak key values in DES library
8243 *) Changed API in EVP library for cipher aliases.
8246 *) Added support for RC2/64bit cipher.
8249 *) Converted the lhash library to the crypto/mem.c functions.
8252 *) Added more recognized ASN.1 object ids.
8255 *) Added more RSA padding checks for SSL/TLS.
8258 *) Added BIO proxy/filter functionality.
8261 *) Added extra_certs to SSL_CTX which can be used
8262 send extra CA certificates to the client in the CA cert chain sending
8263 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8266 *) Now Fortezza is denied in the authentication phase because
8267 this is key exchange mechanism is not supported by SSLeay at all.
8270 *) Additional PKCS1 checks.
8273 *) Support the string "TLSv1" for all TLS v1 ciphers.
8276 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8277 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8280 *) Fixed a few memory leaks.
8283 *) Fixed various code and comment typos.
8286 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8287 bytes sent in the client random.
8288 [Edward Bishop <ebishop@spyglass.com>]
nant's projects / dragonfly.git / blob