5 Changes between 0.9.8j and 0.9.8k [xx XXX xxxx]
7 *) Print out UTF8String and NumericString when parsing ASN1.
10 *) Support NumericString type for name components.
13 *) Allow CC in the environment to override the automatically chosen
14 compiler. Note that nothing is done to ensure flags work with the
18 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
20 *) Properly check EVP_VerifyFinal() and similar return values
22 [Ben Laurie, Bodo Moeller, Google Security Team]
24 *) Enable TLS extensions by default.
27 *) Allow the CHIL engine to be loaded, whether the application is
28 multithreaded or not. (This does not release the developer from the
29 obligation to set up the dynamic locking callbacks.)
30 [Sander Temme <sander@temme.net>]
32 *) Use correct exit code if there is an error in dgst command.
33 [Steve Henson; problem pointed out by Roland Dirlewanger]
35 *) Tweak Configure so that you need to say "experimental-jpake" to enable
36 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
39 *) Add experimental JPAKE support, including demo authentication in
40 s_client and s_server.
43 *) Set the comparison function in v3_addr_canonize().
44 [Rob Austein <sra@hactrn.net>]
46 *) Add support for XMPP STARTTLS in s_client.
47 [Philip Paeps <philip@freebsd.org>]
49 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
50 to ensure that even with this option, only ciphersuites in the
51 server's preference list will be accepted. (Note that the option
52 applies only when resuming a session, so the earlier behavior was
53 just about the algorithm choice for symmetric cryptography.)
56 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
58 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
59 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
62 *) The fix in 0.9.8c that supposedly got rid of unsafe
63 double-checked locking was incomplete for RSA blinding,
64 addressing just one layer of what turns out to have been
65 doubly unsafe triple-checked locking.
67 So now fix this for real by retiring the MONT_HELPER macro
68 in crypto/rsa/rsa_eay.c.
70 [Bodo Moeller; problem pointed out by Marius Schilder]
72 *) Various precautionary measures:
74 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
76 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
77 (NB: This would require knowledge of the secret session ticket key
78 to exploit, in which case you'd be SOL either way.)
80 - Change bn_nist.c so that it will properly handle input BIGNUMs
81 outside the expected range.
83 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
86 [Neel Mehta, Bodo Moeller]
88 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
89 the load fails. Useful for distros.
90 [Ben Laurie and the FreeBSD team]
92 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
95 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
98 *) Expand ENGINE to support engine supplied SSL client certificate functions.
100 This work was sponsored by Logica.
103 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
104 keystores. Support for SSL/TLS client authentication too.
105 Not compiled unless enable-capieng specified to Configure.
107 This work was sponsored by Logica.
110 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
111 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
112 attribute creation routines such as certifcate requests and PKCS#12
116 Changes between 0.9.8g and 0.9.8h [28 May 2008]
118 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
119 handshake which could lead to a cilent crash as found using the
120 Codenomicon TLS test suite (CVE-2008-1672)
121 [Steve Henson, Mark Cox]
123 *) Fix double free in TLS server name extensions which could lead to
124 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
127 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
129 Clear the error queue to ensure that error entries left from
130 older function calls do not interfere with the correct operation.
131 [Lutz Jaenicke, Erik de Castro Lopo]
133 *) Remove root CA certificates of commercial CAs:
135 The OpenSSL project does not recommend any specific CA and does not
136 have any policy with respect to including or excluding any CA.
137 Therefore it does not make any sense to ship an arbitrary selection
138 of root CA certificates with the OpenSSL software.
141 *) RSA OAEP patches to fix two separate invalid memory reads.
142 The first one involves inputs when 'lzero' is greater than
143 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
144 before the beginning of from). The second one involves inputs where
145 the 'db' section contains nothing but zeroes (there is a one-byte
146 invalid read after the end of 'db').
147 [Ivan Nestlerode <inestlerode@us.ibm.com>]
149 *) Partial backport from 0.9.9-dev:
151 Introduce bn_mul_mont (dedicated Montgomery multiplication
152 procedure) as a candidate for BIGNUM assembler implementation.
153 While 0.9.9-dev uses assembler for various architectures, only
154 x86_64 is available by default here in the 0.9.8 branch, and
155 32-bit x86 is available through a compile-time setting.
157 To try the 32-bit x86 assembler implementation, use Configure
158 option "enable-montasm" (which exists only for this backport).
160 As "enable-montasm" for 32-bit x86 disclaims code stability
161 anyway, in this constellation we activate additional code
162 backported from 0.9.9-dev for further performance improvements,
163 namely BN_from_montgomery_word. (To enable this otherwise,
164 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
166 [Andy Polyakov (backport partially by Bodo Moeller)]
168 *) Add TLS session ticket callback. This allows an application to set
169 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
170 values. This is useful for key rollover for example where several key
171 sets may exist with different names.
174 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
175 This was broken until now in 0.9.8 releases, such that the only way
176 a registered ENGINE could be used (assuming it initialises
177 successfully on the host) was to explicitly set it as the default
178 for the relevant algorithms. This is in contradiction with 0.9.7
179 behaviour and the documentation. With this fix, when an ENGINE is
180 registered into a given algorithm's table of implementations, the
181 'uptodate' flag is reset so that auto-discovery will be used next
182 time a new context for that algorithm attempts to select an
184 [Ian Lister (tweaked by Geoff Thorpe)]
186 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
187 implemention in the following ways:
189 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
192 Lack of BER streaming support means one pass streaming processing is
193 only supported if data is detached: setting the streaming flag is
194 ignored for embedded content.
196 CMS support is disabled by default and must be explicitly enabled
197 with the enable-cms configuration option.
200 *) Update the GMP engine glue to do direct copies between BIGNUM and
201 mpz_t when openssl and GMP use the same limb size. Otherwise the
202 existing "conversion via a text string export" trick is still used.
203 [Paul Sheer <paulsheer@gmail.com>]
205 *) Zlib compression BIO. This is a filter BIO which compressed and
206 uncompresses any data passed through it.
209 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
210 RFC3394 compatible AES key wrapping.
213 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
214 sets string data without copying. X509_ALGOR_set0() and
215 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
216 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
217 from an X509_ATTRIBUTE structure optionally checking it occurs only
218 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
222 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
223 to get the expected BN_FLG_CONSTTIME behavior.
224 [Bodo Moeller (Google)]
228 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
229 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
230 - added some more tests to do_tests.pl
231 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
232 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
233 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
234 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
235 - various changes to netware.pl to enable gcc-cross builds on Win32
237 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
238 - various changes to fix missing prototype warnings
239 - fixed x86nasm.pl to create correct asm files for NASM COFF output
240 - added AES, WHIRLPOOL and CPUID assembler code to build files
241 - added missing AES assembler make rules to mk1mf.pl
242 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
243 [Guenter Knauf <eflash@gmx.net>]
245 *) Implement certificate status request TLS extension defined in RFC3546.
246 A client can set the appropriate parameters and receive the encoded
247 OCSP response via a callback. A server can query the supplied parameters
248 and set the encoded OCSP response in the callback. Add simplified examples
249 to s_client and s_server.
252 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
255 + Binary incompatibility of ssl_ctx_st structure
256 + DTLS interoperation with non-compliant servers
257 + Don't call get_session_cb() without proposed session
258 + Fix ia64 assembler code
259 [Andy Polyakov, Steve Henson]
261 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
263 *) DTLS Handshake overhaul. There were longstanding issues with
264 OpenSSL DTLS implementation, which were making it impossible for
265 RFC 4347 compliant client to communicate with OpenSSL server.
266 Unfortunately just fixing these incompatibilities would "cut off"
267 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
268 server keeps tolerating non RFC compliant syntax. The opposite is
269 not true, 0.9.8f client can not communicate with earlier server.
270 This update even addresses CVE-2007-4995.
273 *) Changes to avoid need for function casts in OpenSSL: some compilers
274 (gcc 4.2 and later) reject their use.
275 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
278 *) Add RFC4507 support to OpenSSL. This includes the corrections in
279 RFC4507bis. The encrypted ticket format is an encrypted encoded
280 SSL_SESSION structure, that way new session features are automatically
283 If a client application caches session in an SSL_SESSION structure
284 support is transparent because tickets are now stored in the encoded
287 The SSL_CTX structure automatically generates keys for ticket
288 protection in servers so again support should be possible
289 with no application modification.
291 If a client or server wishes to disable RFC4507 support then the option
292 SSL_OP_NO_TICKET can be set.
294 Add a TLS extension debugging callback to allow the contents of any client
295 or server extensions to be examined.
297 This work was sponsored by Google.
300 *) Add initial support for TLS extensions, specifically for the server_name
301 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
302 have new members for a host name. The SSL data structure has an
303 additional member SSL_CTX *initial_ctx so that new sessions can be
304 stored in that context to allow for session resumption, even after the
305 SSL has been switched to a new SSL_CTX in reaction to a client's
306 server_name extension.
308 New functions (subject to change):
311 SSL_get_servername_type()
314 New CTRL codes and macros (subject to change):
316 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
317 - SSL_CTX_set_tlsext_servername_callback()
318 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
319 - SSL_CTX_set_tlsext_servername_arg()
320 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
322 openssl s_client has a new '-servername ...' option.
324 openssl s_server has new options '-servername_host ...', '-cert2 ...',
325 '-key2 ...', '-servername_fatal' (subject to change). This allows
326 testing the HostName extension for a specific single host name ('-cert'
327 and '-key' remain fallbacks for handshakes without HostName
328 negotiation). If the unrecogninzed_name alert has to be sent, this by
329 default is a warning; it becomes fatal with the '-servername_fatal'
332 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
334 *) Add AES and SSE2 assembly language support to VC++ build.
337 *) Mitigate attack on final subtraction in Montgomery reduction.
340 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
341 (which previously caused an internal error).
344 *) Squeeze another 10% out of IGE mode when in != out.
347 *) AES IGE mode speedup.
348 [Dean Gaudet (Google)]
350 *) Add the Korean symmetric 128-bit cipher SEED (see
351 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
352 add SEED ciphersuites from RFC 4162:
354 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
355 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
356 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
357 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
359 To minimize changes between patchlevels in the OpenSSL 0.9.8
360 series, SEED remains excluded from compilation unless OpenSSL
361 is configured with 'enable-seed'.
364 *) Mitigate branch prediction attacks, which can be practical if a
365 single processor is shared, allowing a spy process to extract
366 information. For detailed background information, see
367 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
368 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
369 and Necessary Software Countermeasures"). The core of the change
370 are new versions BN_div_no_branch() and
371 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
372 respectively, which are slower, but avoid the security-relevant
373 conditional branches. These are automatically called by BN_div()
374 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
375 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
376 remove a conditional branch.
378 BN_FLG_CONSTTIME is the new name for the previous
379 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
380 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
381 in the exponent causes BN_mod_exp_mont() to use the alternative
382 implementation in BN_mod_exp_mont_consttime().) The old name
383 remains as a deprecated alias.
385 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
386 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
387 constant-time implementations for more than just exponentiation.
388 Here too the old name is kept as a deprecated alias.
390 BN_BLINDING_new() will now use BN_dup() for the modulus so that
391 the BN_BLINDING structure gets an independent copy of the
392 modulus. This means that the previous "BIGNUM *m" argument to
393 BN_BLINDING_new() and to BN_BLINDING_create_param() now
394 essentially becomes "const BIGNUM *m", although we can't actually
395 change this in the header file before 0.9.9. It allows
396 RSA_setup_blinding() to use BN_with_flags() on the modulus to
397 enable BN_FLG_CONSTTIME.
399 [Matthew D Wood (Intel Corp)]
401 *) In the SSL/TLS server implementation, be strict about session ID
402 context matching (which matters if an application uses a single
403 external cache for different purposes). Previously,
404 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
405 set. This did ensure strict client verification, but meant that,
406 with applications using a single external cache for quite
407 different requirements, clients could circumvent ciphersuite
408 restrictions for a given session ID context by starting a session
409 in a different context.
412 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
413 a ciphersuite string such as "DEFAULT:RSA" cannot enable
414 authentication-only ciphersuites.
417 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
418 not complete and could lead to a possible single byte overflow
419 (CVE-2007-5135) [Ben Laurie]
421 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
423 *) Since AES128 and AES256 (and similarly Camellia128 and
424 Camellia256) share a single mask bit in the logic of
425 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
426 kludge to work properly if AES128 is available and AES256 isn't
427 (or if Camellia128 is available and Camellia256 isn't).
430 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
431 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
432 When a point or a seed is encoded in a BIT STRING, we need to
433 prevent the removal of trailing zero bits to get the proper DER
434 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
435 of a NamedBitList, for which trailing 0 bits need to be removed.)
438 *) Have SSL/TLS server implementation tolerate "mismatched" record
439 protocol version while receiving ClientHello even if the
440 ClientHello is fragmented. (The server can't insist on the
441 particular protocol version it has chosen before the ServerHello
442 message has informed the client about his choice.)
445 *) Add RFC 3779 support.
446 [Rob Austein for ARIN, Ben Laurie]
448 *) Load error codes if they are not already present instead of using a
449 static variable. This allows them to be cleanly unloaded and reloaded.
450 Improve header file function name parsing.
453 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
454 or CAPABILITY handshake as required by RFCs.
457 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
459 *) Introduce limits to prevent malicious keys being able to
460 cause a denial of service. (CVE-2006-2940)
461 [Steve Henson, Bodo Moeller]
463 *) Fix ASN.1 parsing of certain invalid structures that can result
464 in a denial of service. (CVE-2006-2937) [Steve Henson]
466 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
467 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
469 *) Fix SSL client code which could crash if connecting to a
470 malicious SSLv2 server. (CVE-2006-4343)
471 [Tavis Ormandy and Will Drewry, Google Security Team]
473 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
474 match only those. Before that, "AES256-SHA" would be interpreted
475 as a pattern and match "AES128-SHA" too (since AES128-SHA got
476 the same strength classification in 0.9.7h) as we currently only
477 have a single AES bit in the ciphersuite description bitmap.
478 That change, however, also applied to ciphersuite strings such as
479 "RC4-MD5" that intentionally matched multiple ciphersuites --
480 namely, SSL 2.0 ciphersuites in addition to the more common ones
481 from SSL 3.0/TLS 1.0.
483 So we change the selection algorithm again: Naming an explicit
484 ciphersuite selects this one ciphersuite, and any other similar
485 ciphersuite (same bitmap) from *other* protocol versions.
486 Thus, "RC4-MD5" again will properly select both the SSL 2.0
487 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
489 Since SSL 2.0 does not have any ciphersuites for which the
490 128/256 bit distinction would be relevant, this works for now.
491 The proper fix will be to use different bits for AES128 and
492 AES256, which would have avoided the problems from the beginning;
493 however, bits are scarce, so we can only do this in a new release
494 (not just a patchlevel) when we can change the SSL_CIPHER
495 definition to split the single 'unsigned long mask' bitmap into
496 multiple values to extend the available space.
500 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
502 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
503 (CVE-2006-4339) [Ben Laurie and Google Security Team]
505 *) Add AES IGE and biIGE modes.
508 *) Change the Unix randomness entropy gathering to use poll() when
509 possible instead of select(), since the latter has some
510 undesirable limitations.
511 [Darryl Miles via Richard Levitte and Bodo Moeller]
513 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
514 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
515 cannot be implicitly activated as part of, e.g., the "AES" alias.
516 However, please upgrade to OpenSSL 0.9.9[-dev] for
517 non-experimental use of the ECC ciphersuites to get TLS extension
518 support, which is required for curve and point format negotiation
519 to avoid potential handshake problems.
522 *) Disable rogue ciphersuites:
524 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
525 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
526 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
528 The latter two were purportedly from
529 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
532 Also deactivate the remaining ciphersuites from
533 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
534 unofficial, and the ID has long expired.
537 *) Fix RSA blinding Heisenbug (problems sometimes occured on
538 dual-core machines) and other potential thread-safety issues.
541 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
542 versions), which is now available for royalty-free use
543 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
544 Also, add Camellia TLS ciphersuites from RFC 4132.
546 To minimize changes between patchlevels in the OpenSSL 0.9.8
547 series, Camellia remains excluded from compilation unless OpenSSL
548 is configured with 'enable-camellia'.
551 *) Disable the padding bug check when compression is in use. The padding
552 bug check assumes the first packet is of even length, this is not
553 necessarily true if compresssion is enabled and can result in false
554 positives causing handshake failure. The actual bug test is ancient
555 code so it is hoped that implementations will either have fixed it by
556 now or any which still have the bug do not support compression.
559 Changes between 0.9.8a and 0.9.8b [04 May 2006]
561 *) When applying a cipher rule check to see if string match is an explicit
562 cipher suite and only match that one cipher suite if it is.
565 *) Link in manifests for VC++ if needed.
566 [Austin Ziegler <halostatue@gmail.com>]
568 *) Update support for ECC-based TLS ciphersuites according to
569 draft-ietf-tls-ecc-12.txt with proposed changes (but without
570 TLS extensions, which are supported starting with the 0.9.9
571 branch, not in the OpenSSL 0.9.8 branch).
574 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
575 opaque EVP_CIPHER_CTX handling.
578 *) Fixes and enhancements to zlib compression code. We now only use
579 "zlib1.dll" and use the default __cdecl calling convention on Win32
580 to conform with the standards mentioned here:
581 http://www.zlib.net/DLL_FAQ.txt
582 Static zlib linking now works on Windows and the new --with-zlib-include
583 --with-zlib-lib options to Configure can be used to supply the location
584 of the headers and library. Gracefully handle case where zlib library
588 *) Several fixes and enhancements to the OID generation code. The old code
589 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
590 handle numbers larger than ULONG_MAX, truncated printing and had a
591 non standard OBJ_obj2txt() behaviour.
594 *) Add support for building of engines under engine/ as shared libraries
595 under VC++ build system.
598 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
599 Hopefully, we will not see any false combination of paths any more.
602 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
604 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
605 (part of SSL_OP_ALL). This option used to disable the
606 countermeasure against man-in-the-middle protocol-version
607 rollback in the SSL 2.0 server implementation, which is a bad
608 idea. (CVE-2005-2969)
610 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
611 for Information Security, National Institute of Advanced Industrial
612 Science and Technology [AIST], Japan)]
614 *) Add two function to clear and return the verify parameter flags.
617 *) Keep cipherlists sorted in the source instead of sorting them at
618 runtime, thus removing the need for a lock.
621 *) Avoid some small subgroup attacks in Diffie-Hellman.
622 [Nick Mathewson and Ben Laurie]
624 *) Add functions for well-known primes.
627 *) Extended Windows CE support.
628 [Satoshi Nakamura and Andy Polyakov]
630 *) Initialize SSL_METHOD structures at compile time instead of during
631 runtime, thus removing the need for a lock.
634 *) Make PKCS7_decrypt() work even if no certificate is supplied by
635 attempting to decrypt each encrypted key in turn. Add support to
639 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
641 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
644 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
647 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
648 key into the same file any more.
651 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
654 *) Add -utf8 command line and config file option to 'ca'.
655 [Stefan <stf@udoma.org]
657 *) Removed the macro des_crypt(), as it seems to conflict with some
658 libraries. Use DES_crypt().
661 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
662 involves renaming the source and generated shared-libs for
663 both. The engines will accept the corrected or legacy ids
664 ('ncipher' and '4758_cca' respectively) when binding. NB,
665 this only applies when building 'shared'.
666 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
668 *) Add attribute functions to EVP_PKEY structure. Modify
669 PKCS12_create() to recognize a CSP name attribute and
670 use it. Make -CSP option work again in pkcs12 utility.
673 *) Add new functionality to the bn blinding code:
674 - automatic re-creation of the BN_BLINDING parameters after
675 a fixed number of uses (currently 32)
676 - add new function for parameter creation
677 - introduce flags to control the update behaviour of the
678 BN_BLINDING parameters
679 - hide BN_BLINDING structure
680 Add a second BN_BLINDING slot to the RSA structure to improve
681 performance when a single RSA object is shared among several
685 *) Add support for DTLS.
686 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
688 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
689 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
692 *) Remove buggy and incompletet DH cert support from
693 ssl/ssl_rsa.c and ssl/s3_both.c
696 *) Use SHA-1 instead of MD5 as the default digest algorithm for
697 the apps/openssl applications.
700 *) Compile clean with "-Wall -Wmissing-prototypes
701 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
702 DEBUG_SAFESTACK must also be set.
705 *) Change ./Configure so that certain algorithms can be disabled by default.
706 The new counterpiece to "no-xxx" is "enable-xxx".
708 The patented RC5 and MDC2 algorithms will now be disabled unless
709 "enable-rc5" and "enable-mdc2", respectively, are specified.
711 (IDEA remains enabled despite being patented. This is because IDEA
712 is frequently required for interoperability, and there is no license
713 fee for non-commercial use. As before, "no-idea" can be used to
714 avoid this algorithm.)
718 *) Add processing of proxy certificates (see RFC 3820). This work was
719 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
720 EGEE (Enabling Grids for E-science in Europe).
723 *) RC4 performance overhaul on modern architectures/implementations, such
724 as Intel P4, IA-64 and AMD64.
727 *) New utility extract-section.pl. This can be used specify an alternative
728 section number in a pod file instead of having to treat each file as
729 a separate case in Makefile. This can be done by adding two lines to the
732 =for comment openssl_section:XXX
734 The blank line is mandatory.
738 *) New arguments -certform, -keyform and -pass for s_client and s_server
739 to allow alternative format key and certificate files and passphrase
743 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
744 update associated structures and add various utility functions.
746 Add new policy related verify parameters, include policy checking in
747 standard verify code. Enhance 'smime' application with extra parameters
748 to support policy checking and print out.
751 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
752 Nehemiah processors. These extensions support AES encryption in hardware
753 as well as RNG (though RNG support is currently disabled).
754 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
756 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
759 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
760 [Andy Polyakov and a number of other people]
762 *) Improved PowerPC platform support. Most notably BIGNUM assembler
763 implementation contributed by IBM.
764 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
766 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
767 exponent rather than 'unsigned long'. There is a corresponding change to
768 the new 'rsa_keygen' element of the RSA_METHOD structure.
769 [Jelte Jansen, Geoff Thorpe]
771 *) Functionality for creating the initial serial number file is now
772 moved from CA.pl to the 'ca' utility with a new option -create_serial.
774 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
775 number file to 1, which is bound to cause problems. To avoid
776 the problems while respecting compatibility between different 0.9.7
777 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
778 CA.pl for serial number initialization. With the new release 0.9.8,
779 we can fix the problem directly in the 'ca' utility.)
782 *) Reduced header interdepencies by declaring more opaque objects in
783 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
784 give fewer recursive includes, which could break lazy source code - so
785 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
786 developers should define this symbol when building and using openssl to
787 ensure they track the recommended behaviour, interfaces, [etc], but
788 backwards-compatible behaviour prevails when this isn't defined.
791 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
794 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
795 This will generate a random key of the appropriate length based on the
796 cipher context. The EVP_CIPHER can provide its own random key generation
797 routine to support keys of a specific form. This is used in the des and
798 3des routines to generate a key of the correct parity. Update S/MIME
799 code to use new functions and hence generate correct parity DES keys.
800 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
801 valid (weak or incorrect parity).
804 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
805 as looking them up. This is useful when the verified structure may contain
806 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
807 present unless the new PKCS7_NO_CRL flag is asserted.
810 *) Extend ASN1 oid configuration module. It now additionally accepts the
813 shortName = some long name, 1.2.3.4
816 *) Reimplemented the BN_CTX implementation. There is now no more static
817 limitation on the number of variables it can handle nor the depth of the
818 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
819 information can now expand as required, and rather than having a single
820 static array of bignums, BN_CTX now uses a linked-list of such arrays
821 allowing it to expand on demand whilst maintaining the usefulness of
825 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
826 to allow all RSA operations to function using a single BN_CTX.
829 *) Preliminary support for certificate policy evaluation and checking. This
830 is initially intended to pass the tests outlined in "Conformance Testing
831 of Relying Party Client Certificate Path Processing Logic" v1.07.
834 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
835 remained unused and not that useful. A variety of other little bignum
836 tweaks and fixes have also been made continuing on from the audit (see
840 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
841 associated ASN1, EVP and SSL functions and old ASN1 macros.
844 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
845 and this should never fail. So the return value from the use of
846 BN_set_word() (which can fail due to needless expansion) is now deprecated;
847 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
850 *) BN_CTX_get() should return zero-valued bignums, providing the same
851 initialised value as BN_new().
852 [Geoff Thorpe, suggested by Ulf Möller]
854 *) Support for inhibitAnyPolicy certificate extension.
857 *) An audit of the BIGNUM code is underway, for which debugging code is
858 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
859 is considered valid when processing BIGNUMs, and causes execution to
860 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
861 further steps are taken to deliberately pollute unused data in BIGNUM
862 structures to try and expose faulty code further on. For now, openssl will
863 (in its default mode of operation) continue to tolerate the inconsistent
864 forms that it has tolerated in the past, but authors and packagers should
865 consider trying openssl and their own applications when compiled with
866 these debugging symbols defined. It will help highlight potential bugs in
867 their own code, and will improve the test coverage for OpenSSL itself. At
868 some point, these tighter rules will become openssl's default to improve
869 maintainability, though the assert()s and other overheads will remain only
870 in debugging configurations. See bn.h for more details.
871 [Geoff Thorpe, Nils Larsch, Ulf Möller]
873 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
874 that can only be obtained through BN_CTX_new() (which implicitly
875 initialises it). The presence of this function only made it possible
876 to overwrite an existing structure (and cause memory leaks).
879 *) Because of the callback-based approach for implementing LHASH as a
880 template type, lh_insert() adds opaque objects to hash-tables and
881 lh_doall() or lh_doall_arg() are typically used with a destructor callback
882 to clean up those corresponding objects before destroying the hash table
883 (and losing the object pointers). So some over-zealous constifications in
884 LHASH have been relaxed so that lh_insert() does not take (nor store) the
885 objects as "const" and the lh_doall[_arg] callback wrappers are not
886 prototyped to have "const" restrictions on the object pointers they are
887 given (and so aren't required to cast them away any more).
890 *) The tmdiff.h API was so ugly and minimal that our own timing utility
891 (speed) prefers to use its own implementation. The two implementations
892 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
893 its object type properly exposed (MS_TM) instead of casting to/from "char
894 *". This may still change yet if someone realises MS_TM and "ms_time_***"
895 aren't necessarily the greatest nomenclatures - but this is what was used
896 internally to the implementation so I've used that for now.
899 *) Ensure that deprecated functions do not get compiled when
900 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
901 the self-tests were still using deprecated key-generation functions so
902 these have been updated also.
905 *) Reorganise PKCS#7 code to separate the digest location functionality
906 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
907 New function PKCS7_set_digest() to set the digest type for PKCS#7
908 digestedData type. Add additional code to correctly generate the
909 digestedData type and add support for this type in PKCS7 initialization
913 *) New function PKCS7_set0_type_other() this initializes a PKCS7
914 structure of type "other".
917 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
918 sure the loop does correctly stop and breaking ("division by zero")
919 modulus operations are not performed. The (pre-generated) prime
920 table crypto/bn/bn_prime.h was already correct, but it could not be
921 re-generated on some platforms because of the "division by zero"
922 situation in the script.
923 [Ralf S. Engelschall]
925 *) Update support for ECC-based TLS ciphersuites according to
926 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
927 SHA-1 now is only used for "small" curves (where the
928 representation of a field element takes up to 24 bytes); for
929 larger curves, the field element resulting from ECDH is directly
930 used as premaster secret.
931 [Douglas Stebila (Sun Microsystems Laboratories)]
933 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
934 curve secp160r1 to the tests.
935 [Douglas Stebila (Sun Microsystems Laboratories)]
937 *) Add the possibility to load symbols globally with DSO.
938 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
940 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
941 control of the error stack.
944 *) Add support for STORE in ENGINE.
947 *) Add the STORE type. The intention is to provide a common interface
948 to certificate and key stores, be they simple file-based stores, or
949 HSM-type store, or LDAP stores, or...
950 NOTE: The code is currently UNTESTED and isn't really used anywhere.
953 *) Add a generic structure called OPENSSL_ITEM. This can be used to
954 pass a list of arguments to any function as well as provide a way
955 for a function to pass data back to the caller.
958 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
959 works like BUF_strdup() but can be used to duplicate a portion of
960 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
964 *) Add the function sk_find_ex() which works like sk_find(), but will
965 return an index to an element even if an exact match couldn't be
966 found. The index is guaranteed to point at the element where the
967 searched-for key would be inserted to preserve sorting order.
970 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
971 takes an extra flags argument for optional functionality. Currently,
972 the following flags are defined:
974 OBJ_BSEARCH_VALUE_ON_NOMATCH
975 This one gets OBJ_bsearch_ex() to return a pointer to the first
976 element where the comparing function returns a negative or zero
979 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
980 This one gets OBJ_bsearch_ex() to return a pointer to the first
981 element where the comparing function returns zero. This is useful
982 if there are more than one element where the comparing function
986 *) Make it possible to create self-signed certificates with 'openssl ca'
987 in such a way that the self-signed certificate becomes part of the
988 CA database and uses the same mechanisms for serial number generation
989 as all other certificate signing. The new flag '-selfsign' enables
990 this functionality. Adapt CA.sh and CA.pl.in.
993 *) Add functionality to check the public key of a certificate request
994 against a given private. This is useful to check that a certificate
995 request can be signed by that key (self-signing).
998 *) Make it possible to have multiple active certificates with the same
999 subject in the CA index file. This is done only if the keyword
1000 'unique_subject' is set to 'no' in the main CA section (default
1001 if 'CA_default') of the configuration file. The value is saved
1002 with the database itself in a separate index attribute file,
1003 named like the index file with '.attr' appended to the name.
1006 *) Generate muti valued AVAs using '+' notation in config files for
1010 *) Support for nameConstraints certificate extension.
1013 *) Support for policyConstraints certificate extension.
1016 *) Support for policyMappings certificate extension.
1019 *) Make sure the default DSA_METHOD implementation only uses its
1020 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1021 and change its own handlers to be NULL so as to remove unnecessary
1022 indirection. This lets alternative implementations fallback to the
1023 default implementation more easily.
1026 *) Support for directoryName in GeneralName related extensions
1030 *) Make it possible to link applications using Makefile.shared.
1031 Make that possible even when linking against static libraries!
1034 *) Support for single pass processing for S/MIME signing. This now
1035 means that S/MIME signing can be done from a pipe, in addition
1036 cleartext signing (multipart/signed type) is effectively streaming
1037 and the signed data does not need to be all held in memory.
1039 This is done with a new flag PKCS7_STREAM. When this flag is set
1040 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1041 is done after the data is output (and digests calculated) in
1042 SMIME_write_PKCS7().
1045 *) Add full support for -rpath/-R, both in shared libraries and
1046 applications, at least on the platforms where it's known how
1050 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1051 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1052 will now compute a table of multiples of the generator that
1053 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1054 faster (notably in the case of a single point multiplication,
1055 scalar * generator).
1056 [Nils Larsch, Bodo Moeller]
1058 *) IPv6 support for certificate extensions. The various extensions
1059 which use the IP:a.b.c.d can now take IPv6 addresses using the
1060 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1064 *) Added an ENGINE that implements RSA by performing private key
1065 exponentiations with the GMP library. The conversions to and from
1066 GMP's mpz_t format aren't optimised nor are any montgomery forms
1067 cached, and on x86 it appears OpenSSL's own performance has caught up.
1068 However there are likely to be other architectures where GMP could
1069 provide a boost. This ENGINE is not built in by default, but it can be
1070 specified at Configure time and should be accompanied by the necessary
1071 linker additions, eg;
1072 ./config -DOPENSSL_USE_GMP -lgmp
1075 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1076 testing availability of engines with "-t" - the old behaviour is
1077 produced by increasing the feature's verbosity with "-tt".
1080 *) ECDSA routines: under certain error conditions uninitialized BN objects
1081 could be freed. Solution: make sure initialization is performed early
1082 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1086 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1087 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1088 software implementations. For DSA and DH, parameter generation can
1089 also be overriden by providing the appropriate method callbacks.
1092 *) Change the "progress" mechanism used in key-generation and
1093 primality testing to functions that take a new BN_GENCB pointer in
1094 place of callback/argument pairs. The new API functions have "_ex"
1095 postfixes and the older functions are reimplemented as wrappers for
1096 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1097 declarations of the old functions to help (graceful) attempts to
1098 migrate to the new functions. Also, the new key-generation API
1099 functions operate on a caller-supplied key-structure and return
1100 success/failure rather than returning a key or NULL - this is to
1101 help make "keygen" another member function of RSA_METHOD etc.
1103 Example for using the new callback interface:
1105 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1109 BN_GENCB_set(&my_cb, my_callback, my_arg);
1111 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1112 /* For the meaning of a, b in calls to my_callback(), see the
1113 * documentation of the function that calls the callback.
1114 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1115 * my_callback should return 1 if it wants BN_is_prime_ex()
1116 * to continue, or 0 to stop.
1121 *) Change the ZLIB compression method to be stateful, and make it
1122 available to TLS with the number defined in
1123 draft-ietf-tls-compression-04.txt.
1126 *) Add the ASN.1 structures and functions for CertificatePair, which
1127 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1129 CertificatePair ::= SEQUENCE {
1130 forward [0] Certificate OPTIONAL,
1131 reverse [1] Certificate OPTIONAL,
1132 -- at least one of the pair shall be present -- }
1134 Also implement the PEM functions to read and write certificate
1135 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1137 This needed to be defined, mostly for the sake of the LDAP
1138 attribute crossCertificatePair, but may prove useful elsewhere as
1142 *) Make it possible to inhibit symlinking of shared libraries in
1143 Makefile.shared, for Cygwin's sake.
1146 *) Extend the BIGNUM API by creating a function
1147 void BN_set_negative(BIGNUM *a, int neg);
1148 and a macro that behave like
1149 int BN_is_negative(const BIGNUM *a);
1151 to avoid the need to access 'a->neg' directly in applications.
1154 *) Implement fast modular reduction for pseudo-Mersenne primes
1155 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1156 EC_GROUP_new_curve_GFp() will now automatically use this
1158 [Nils Larsch <nla@trustcenter.de>]
1160 *) Add new lock type (CRYPTO_LOCK_BN).
1163 *) Change the ENGINE framework to automatically load engines
1164 dynamically from specific directories unless they could be
1165 found to already be built in or loaded. Move all the
1166 current engines except for the cryptodev one to a new
1168 The engines in engines/ are built as shared libraries if
1169 the "shared" options was given to ./Configure or ./config.
1170 Otherwise, they are inserted in libcrypto.a.
1171 /usr/local/ssl/engines is the default directory for dynamic
1172 engines, but that can be overriden at configure time through
1173 the usual use of --prefix and/or --openssldir, and at run
1174 time with the environment variable OPENSSL_ENGINES.
1175 [Geoff Thorpe and Richard Levitte]
1177 *) Add Makefile.shared, a helper makefile to build shared
1178 libraries. Addapt Makefile.org.
1181 *) Add version info to Win32 DLLs.
1182 [Peter 'Luna' Runestig" <peter@runestig.com>]
1184 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1185 can be added using this API to created arbitrary PKCS#12
1186 files while avoiding the low level API.
1188 New options to PKCS12_create(), key or cert can be NULL and
1189 will then be omitted from the output file. The encryption
1190 algorithm NIDs can be set to -1 for no encryption, the mac
1191 iteration count can be set to 0 to omit the mac.
1193 Enhance pkcs12 utility by making the -nokeys and -nocerts
1194 options work when creating a PKCS#12 file. New option -nomac
1195 to omit the mac, NONE can be set for an encryption algorithm.
1196 New code is modified to use the enhanced PKCS12_create()
1197 instead of the low level API.
1200 *) Extend ASN1 encoder to support indefinite length constructed
1201 encoding. This can output sequences tags and octet strings in
1202 this form. Modify pk7_asn1.c to support indefinite length
1203 encoding. This is experimental and needs additional code to
1204 be useful, such as an ASN1 bio and some enhanced streaming
1207 Extend template encode functionality so that tagging is passed
1208 down to the template encoder.
1211 *) Let 'openssl req' fail if an argument to '-newkey' is not
1212 recognized instead of using RSA as a default.
1215 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1216 As these are not official, they are not included in "ALL";
1217 the "ECCdraft" ciphersuite group alias can be used to select them.
1218 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1220 *) Add ECDH engine support.
1221 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1223 *) Add ECDH in new directory crypto/ecdh/.
1224 [Douglas Stebila (Sun Microsystems Laboratories)]
1226 *) Let BN_rand_range() abort with an error after 100 iterations
1227 without success (which indicates a broken PRNG).
1230 *) Change BN_mod_sqrt() so that it verifies that the input value
1231 is really the square of the return value. (Previously,
1232 BN_mod_sqrt would show GIGO behaviour.)
1235 *) Add named elliptic curves over binary fields from X9.62, SECG,
1236 and WAP/WTLS; add OIDs that were still missing.
1238 [Sheueling Chang Shantz and Douglas Stebila
1239 (Sun Microsystems Laboratories)]
1241 *) Extend the EC library for elliptic curves over binary fields
1242 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1245 EC_GF2m_simple_method
1249 EC_GROUP_new_curve_GF2m
1250 EC_GROUP_set_curve_GF2m
1251 EC_GROUP_get_curve_GF2m
1252 EC_POINT_set_affine_coordinates_GF2m
1253 EC_POINT_get_affine_coordinates_GF2m
1254 EC_POINT_set_compressed_coordinates_GF2m
1256 Point compression for binary fields is disabled by default for
1257 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1260 As binary polynomials are represented as BIGNUMs, various members
1261 of the EC_GROUP and EC_POINT data structures can be shared
1262 between the implementations for prime fields and binary fields;
1263 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1264 are essentially identical to their ..._GFp counterparts.
1265 (For simplicity, the '..._GFp' prefix has been dropped from
1266 various internal method names.)
1268 An internal 'field_div' method (similar to 'field_mul' and
1269 'field_sqr') has been added; this is used only for binary fields.
1271 [Sheueling Chang Shantz and Douglas Stebila
1272 (Sun Microsystems Laboratories)]
1274 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1275 through methods ('mul', 'precompute_mult').
1277 The generic implementations (now internally called 'ec_wNAF_mul'
1278 and 'ec_wNAF_precomputed_mult') remain the default if these
1279 methods are undefined.
1281 [Sheueling Chang Shantz and Douglas Stebila
1282 (Sun Microsystems Laboratories)]
1284 *) New function EC_GROUP_get_degree, which is defined through
1285 EC_METHOD. For curves over prime fields, this returns the bit
1286 length of the modulus.
1288 [Sheueling Chang Shantz and Douglas Stebila
1289 (Sun Microsystems Laboratories)]
1291 *) New functions EC_GROUP_dup, EC_POINT_dup.
1292 (These simply call ..._new and ..._copy).
1294 [Sheueling Chang Shantz and Douglas Stebila
1295 (Sun Microsystems Laboratories)]
1297 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1298 Polynomials are represented as BIGNUMs (where the sign bit is not
1299 used) in the following functions [macros]:
1302 BN_GF2m_sub [= BN_GF2m_add]
1303 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1304 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1305 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1307 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1308 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1309 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1310 BN_GF2m_cmp [= BN_ucmp]
1312 (Note that only the 'mod' functions are actually for fields GF(2^m).
1313 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1315 For some functions, an the irreducible polynomial defining a
1316 field can be given as an 'unsigned int[]' with strictly
1317 decreasing elements giving the indices of those bits that are set;
1318 i.e., p[] represents the polynomial
1319 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1321 p[0] > p[1] > ... > p[k] = 0.
1322 This applies to the following functions:
1327 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1328 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1330 BN_GF2m_mod_sqrt_arr
1331 BN_GF2m_mod_solve_quad_arr
1335 Conversion can be performed by the following functions:
1340 bntest.c has additional tests for binary polynomial arithmetic.
1342 Two implementations for BN_GF2m_mod_div() are available.
1343 The default algorithm simply uses BN_GF2m_mod_inv() and
1344 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1345 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1346 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1348 [Sheueling Chang Shantz and Douglas Stebila
1349 (Sun Microsystems Laboratories)]
1351 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1352 functionality is disabled at compile-time.
1353 [Douglas Stebila <douglas.stebila@sun.com>]
1355 *) Change default behaviour of 'openssl asn1parse' so that more
1356 information is visible when viewing, e.g., a certificate:
1358 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1359 mode the content of non-printable OCTET STRINGs is output in a
1360 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1361 avoid the appearance of a printable string.
1362 [Nils Larsch <nla@trustcenter.de>]
1364 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1366 EC_GROUP_set_asn1_flag()
1367 EC_GROUP_get_asn1_flag()
1368 EC_GROUP_set_point_conversion_form()
1369 EC_GROUP_get_point_conversion_form()
1370 These control ASN1 encoding details:
1371 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1372 has been set to OPENSSL_EC_NAMED_CURVE.
1373 - Points are encoded in uncompressed form by default; options for
1374 asn1_for are as for point2oct, namely
1375 POINT_CONVERSION_COMPRESSED
1376 POINT_CONVERSION_UNCOMPRESSED
1377 POINT_CONVERSION_HYBRID
1379 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1382 EC_GROUP_get0_seed()
1383 EC_GROUP_get_seed_len()
1384 This is used only for ASN1 purposes (so far).
1385 [Nils Larsch <nla@trustcenter.de>]
1387 *) Add 'field_type' member to EC_METHOD, which holds the NID
1388 of the appropriate field type OID. The new function
1389 EC_METHOD_get_field_type() returns this value.
1390 [Nils Larsch <nla@trustcenter.de>]
1395 EC_POINT_point2hex()
1396 EC_POINT_hex2point()
1397 providing useful interfaces to EC_POINT_point2oct() and
1398 EC_POINT_oct2point().
1399 [Nils Larsch <nla@trustcenter.de>]
1401 *) Change internals of the EC library so that the functions
1402 EC_GROUP_set_generator()
1403 EC_GROUP_get_generator()
1404 EC_GROUP_get_order()
1405 EC_GROUP_get_cofactor()
1406 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1407 to methods, which would lead to unnecessary code duplication when
1408 adding different types of curves.
1409 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1411 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1412 arithmetic, and such that modified wNAFs are generated
1413 (which avoid length expansion in many cases).
1416 *) Add a function EC_GROUP_check_discriminant() (defined via
1417 EC_METHOD) that verifies that the curve discriminant is non-zero.
1419 Add a function EC_GROUP_check() that makes some sanity tests
1420 on a EC_GROUP, its generator and order. This includes
1421 EC_GROUP_check_discriminant().
1422 [Nils Larsch <nla@trustcenter.de>]
1424 *) Add ECDSA in new directory crypto/ecdsa/.
1426 Add applications 'openssl ecparam' and 'openssl ecdsa'
1427 (these are based on 'openssl dsaparam' and 'openssl dsa').
1429 ECDSA support is also included in various other files across the
1430 library. Most notably,
1431 - 'openssl req' now has a '-newkey ecdsa:file' option;
1432 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1433 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1434 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1435 them suitable for ECDSA where domain parameters must be
1436 extracted before the specific public key;
1437 - ECDSA engine support has been added.
1438 [Nils Larsch <nla@trustcenter.de>]
1440 *) Include some named elliptic curves, and add OIDs from X9.62,
1441 SECG, and WAP/WTLS. Each curve can be obtained from the new
1443 EC_GROUP_new_by_curve_name(),
1444 and the list of available named curves can be obtained with
1445 EC_get_builtin_curves().
1446 Also add a 'curve_name' member to EC_GROUP objects, which can be
1448 EC_GROUP_set_curve_name()
1449 EC_GROUP_get_curve_name()
1450 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1452 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1453 was actually never needed) and in BN_mul(). The removal in BN_mul()
1454 required a small change in bn_mul_part_recursive() and the addition
1455 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1456 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1457 bn_sub_words() and bn_add_words() except they take arrays with
1461 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1463 *) In the SSL/TLS server implementation, be strict about session ID
1464 context matching (which matters if an application uses a single
1465 external cache for different purposes). Previously,
1466 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1467 set. This did ensure strict client verification, but meant that,
1468 with applications using a single external cache for quite
1469 different requirements, clients could circumvent ciphersuite
1470 restrictions for a given session ID context by starting a session
1471 in a different context.
1474 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1476 *) Cleanse PEM buffers before freeing them since they may contain
1478 [Benjamin Bennett <ben@psc.edu>]
1480 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1481 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1482 authentication-only ciphersuites.
1485 *) Since AES128 and AES256 share a single mask bit in the logic of
1486 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1487 kludge to work properly if AES128 is available and AES256 isn't.
1490 *) Expand security boundary to match 1.1.1 module.
1493 *) Remove redundant features: hash file source, editing of test vectors
1494 modify fipsld to use external fips_premain.c signature.
1497 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1498 run algorithm test programs.
1501 *) Make algorithm test programs more tolerant of whitespace.
1504 *) Have SSL/TLS server implementation tolerate "mismatched" record
1505 protocol version while receiving ClientHello even if the
1506 ClientHello is fragmented. (The server can't insist on the
1507 particular protocol version it has chosen before the ServerHello
1508 message has informed the client about his choice.)
1511 *) Load error codes if they are not already present instead of using a
1512 static variable. This allows them to be cleanly unloaded and reloaded.
1515 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1517 *) Introduce limits to prevent malicious keys being able to
1518 cause a denial of service. (CVE-2006-2940)
1519 [Steve Henson, Bodo Moeller]
1521 *) Fix ASN.1 parsing of certain invalid structures that can result
1522 in a denial of service. (CVE-2006-2937) [Steve Henson]
1524 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1525 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1527 *) Fix SSL client code which could crash if connecting to a
1528 malicious SSLv2 server. (CVE-2006-4343)
1529 [Tavis Ormandy and Will Drewry, Google Security Team]
1531 *) Change ciphersuite string processing so that an explicit
1532 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1533 will no longer include "AES128-SHA"), and any other similar
1534 ciphersuite (same bitmap) from *other* protocol versions (so that
1535 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1536 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1537 changes from 0.9.8b and 0.9.8d.
1540 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1542 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1543 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1545 *) Change the Unix randomness entropy gathering to use poll() when
1546 possible instead of select(), since the latter has some
1547 undesirable limitations.
1548 [Darryl Miles via Richard Levitte and Bodo Moeller]
1550 *) Disable rogue ciphersuites:
1552 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1553 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1554 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1556 The latter two were purportedly from
1557 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1560 Also deactive the remaining ciphersuites from
1561 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1562 unofficial, and the ID has long expired.
1565 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1566 dual-core machines) and other potential thread-safety issues.
1569 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1571 *) Adapt fipsld and the build system to link against the validated FIPS
1572 module in FIPS mode.
1575 *) Fixes for VC++ 2005 build under Windows.
1578 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1579 from a Windows bash shell such as MSYS. It is autodetected from the
1580 "config" script when run from a VC++ environment. Modify standard VC++
1581 build to use fipscanister.o from the GNU make build.
1584 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1586 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1587 The value now differs depending on if you build for FIPS or not.
1588 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1589 safely run with a non-FIPSed libcrypto, as it may crash because of
1590 the difference induced by this change.
1593 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1595 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1596 (part of SSL_OP_ALL). This option used to disable the
1597 countermeasure against man-in-the-middle protocol-version
1598 rollback in the SSL 2.0 server implementation, which is a bad
1599 idea. (CVE-2005-2969)
1601 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1602 for Information Security, National Institute of Advanced Industrial
1603 Science and Technology [AIST], Japan)]
1605 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1606 mainly for FIPS compliance and not fully integrated at this stage.
1609 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1610 the exponentiation using a fixed-length exponent. (Otherwise,
1611 the information leaked through timing could expose the secret key
1612 after many signatures; cf. Bleichenbacher's attack on DSA with
1616 *) Make a new fixed-window mod_exp implementation the default for
1617 RSA, DSA, and DH private-key operations so that the sequence of
1618 squares and multiplies and the memory access pattern are
1619 independent of the particular secret key. This will mitigate
1620 cache-timing and potential related attacks.
1622 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1623 and this is automatically used by BN_mod_exp_mont() if the new flag
1624 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1625 will use this BN flag for private exponents unless the flag
1626 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1627 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1629 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1631 *) Change the client implementation for SSLv23_method() and
1632 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1633 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1634 (Previously, the SSL 2.0 backwards compatible Client Hello
1635 message format would be used even with SSL_OP_NO_SSLv2.)
1638 *) Add support for smime-type MIME parameter in S/MIME messages which some
1642 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1643 a threadsafe manner. Modify rsa code to use new function and add calls
1644 to dsa and dh code (which had race conditions before).
1647 *) Include the fixed error library code in the C error file definitions
1648 instead of fixing them up at runtime. This keeps the error code
1649 structures constant.
1652 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1654 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1657 *) Fixes for newer kerberos headers. NB: the casts are needed because
1658 the 'length' field is signed on one version and unsigned on another
1659 with no (?) obvious way to tell the difference, without these VC++
1660 complains. Also the "definition" of FAR (blank) is no longer included
1661 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1662 some needed definitions.
1665 *) Undo Cygwin change.
1668 *) Added support for proxy certificates according to RFC 3820.
1669 Because they may be a security thread to unaware applications,
1670 they must be explicitely allowed in run-time. See
1671 docs/HOWTO/proxy_certificates.txt for further information.
1674 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1676 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1677 server and client random values. Previously
1678 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1679 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1681 This change has negligible security impact because:
1683 1. Server and client random values still have 24 bytes of pseudo random
1686 2. Server and client random values are sent in the clear in the initial
1689 3. The master secret is derived using the premaster secret (48 bytes in
1690 size for static RSA ciphersuites) as well as client server and random
1693 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1696 [Stephen Henson, reported by UK NISCC]
1698 *) Use Windows randomness collection on Cygwin.
1701 *) Fix hang in EGD/PRNGD query when communication socket is closed
1702 prematurely by EGD/PRNGD.
1703 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1705 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1708 *) Back-port of selected performance improvements from development
1709 branch, as well as improved support for PowerPC platforms.
1712 *) Add lots of checks for memory allocation failure, error codes to indicate
1713 failure and freeing up memory if a failure occurs.
1714 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1716 *) Add new -passin argument to dgst.
1719 *) Perform some character comparisons of different types in X509_NAME_cmp:
1720 this is needed for some certificates that reencode DNs into UTF8Strings
1721 (in violation of RFC3280) and can't or wont issue name rollover
1725 *) Make an explicit check during certificate validation to see that
1726 the CA setting in each certificate on the chain is correct. As a
1727 side effect always do the following basic checks on extensions,
1728 not just when there's an associated purpose to the check:
1730 - if there is an unhandled critical extension (unless the user
1731 has chosen to ignore this fault)
1732 - if the path length has been exceeded (if one is set at all)
1733 - that certain extensions fit the associated purpose (if one has
1737 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1739 *) Avoid a race condition when CRLs are checked in a multi threaded
1740 environment. This would happen due to the reordering of the revoked
1741 entries during signature checking and serial number lookup. Now the
1742 encoding is cached and the serial number sort performed under a lock.
1743 Add new STACK function sk_is_sorted().
1746 *) Add Delta CRL to the extension code.
1749 *) Various fixes to s3_pkt.c so alerts are sent properly.
1750 [David Holmes <d.holmes@f5.com>]
1752 *) Reduce the chances of duplicate issuer name and serial numbers (in
1753 violation of RFC3280) using the OpenSSL certificate creation utilities.
1754 This is done by creating a random 64 bit value for the initial serial
1755 number when a serial number file is created or when a self signed
1756 certificate is created using 'openssl req -x509'. The initial serial
1757 number file is created using 'openssl x509 -next_serial' in CA.pl
1758 rather than being initialized to 1.
1761 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1763 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1764 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1765 [Joe Orton, Steve Henson]
1767 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1769 [Joe Orton, Steve Henson]
1771 *) Make it possible to have multiple active certificates with the same
1772 subject in the CA index file. This is done only if the keyword
1773 'unique_subject' is set to 'no' in the main CA section (default
1774 if 'CA_default') of the configuration file. The value is saved
1775 with the database itself in a separate index attribute file,
1776 named like the index file with '.attr' appended to the name.
1779 *) X509 verify fixes. Disable broken certificate workarounds when
1780 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1781 keyUsage extension present. Don't accept CRLs with unhandled critical
1782 extensions: since verify currently doesn't process CRL extensions this
1783 rejects a CRL with *any* critical extensions. Add new verify error codes
1787 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1788 A clarification of RFC2560 will require the use of OCTET STRINGs and
1789 some implementations cannot handle the current raw format. Since OpenSSL
1790 copies and compares OCSP nonces as opaque blobs without any attempt at
1791 parsing them this should not create any compatibility issues.
1794 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1795 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1796 this HMAC (and other) operations are several times slower than OpenSSL
1800 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1801 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1803 *) Use the correct content when signing type "other".
1806 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1808 *) Fix various bugs revealed by running the NISCC test suite:
1810 Stop out of bounds reads in the ASN1 code when presented with
1811 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1813 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1815 If verify callback ignores invalid public key errors don't try to check
1816 certificate signature with the NULL public key.
1820 *) New -ignore_err option in ocsp application to stop the server
1821 exiting on the first error in a request.
1824 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1825 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1829 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1830 extra data after the compression methods not only for TLS 1.0
1831 but also for SSL 3.0 (as required by the specification).
1832 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1834 *) Change X509_certificate_type() to mark the key as exported/exportable
1835 when it's 512 *bits* long, not 512 bytes.
1838 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1839 blocks during encryption.
1842 *) Various fixes to base64 BIO and non blocking I/O. On write
1843 flushes were not handled properly if the BIO retried. On read
1844 data was not being buffered properly and had various logic bugs.
1845 This also affects blocking I/O when the data being decoded is a
1849 *) Various S/MIME bugfixes and compatibility changes:
1850 output correct application/pkcs7 MIME type if
1851 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1852 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1853 of files as .eml work). Correctly handle very long lines in MIME
1857 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1859 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1860 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1861 a protocol version number mismatch like a decryption error
1862 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1865 *) Turn on RSA blinding by default in the default implementation
1866 to avoid a timing attack. Applications that don't want it can call
1867 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1868 They would be ill-advised to do so in most cases.
1869 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1871 *) Change RSA blinding code so that it works when the PRNG is not
1872 seeded (in this case, the secret RSA exponent is abused as
1873 an unpredictable seed -- if it is not unpredictable, there
1874 is no point in blinding anyway). Make RSA blinding thread-safe
1875 by remembering the creator's thread ID in rsa->blinding and
1876 having all other threads use local one-time blinding factors
1877 (this requires more computation than sharing rsa->blinding, but
1878 avoids excessive locking; and if an RSA object is not shared
1879 between threads, blinding will still be very fast).
1882 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1883 ENGINE as defaults for all supported algorithms irrespective of
1884 the 'flags' parameter. 'flags' is now honoured, so applications
1885 should make sure they are passing it correctly.
1888 *) Target "mingw" now allows native Windows code to be generated in
1889 the Cygwin environment as well as with the MinGW compiler.
1892 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1894 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1895 via timing by performing a MAC computation even if incorrrect
1896 block cipher padding has been found. This is a countermeasure
1897 against active attacks where the attacker has to distinguish
1898 between bad padding and a MAC verification error. (CVE-2003-0078)
1900 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1901 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1902 Martin Vuagnoux (EPFL, Ilion)]
1904 *) Make the no-err option work as intended. The intention with no-err
1905 is not to have the whole error stack handling routines removed from
1906 libcrypto, it's only intended to remove all the function name and
1907 reason texts, thereby removing some of the footprint that may not
1908 be interesting if those errors aren't displayed anyway.
1910 NOTE: it's still possible for any application or module to have it's
1911 own set of error texts inserted. The routines are there, just not
1912 used by default when no-err is given.
1915 *) Add support for FreeBSD on IA64.
1916 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1918 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1919 Kerberos function mit_des_cbc_cksum(). Before this change,
1920 the value returned by DES_cbc_cksum() was like the one from
1921 mit_des_cbc_cksum(), except the bytes were swapped.
1922 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1924 *) Allow an application to disable the automatic SSL chain building.
1925 Before this a rather primitive chain build was always performed in
1926 ssl3_output_cert_chain(): an application had no way to send the
1927 correct chain if the automatic operation produced an incorrect result.
1929 Now the chain builder is disabled if either:
1931 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1933 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1935 The reasoning behind this is that an application would not want the
1936 auto chain building to take place if extra chain certificates are
1937 present and it might also want a means of sending no additional
1938 certificates (for example the chain has two certificates and the
1942 *) Add the possibility to build without the ENGINE framework.
1943 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1945 *) Under Win32 gmtime() can return NULL: check return value in
1946 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1949 *) DSA routines: under certain error conditions uninitialized BN objects
1950 could be freed. Solution: make sure initialization is performed early
1951 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1952 Nils Larsch <nla@trustcenter.de> via PR#459)
1955 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1956 checked on reconnect on the client side, therefore session resumption
1957 could still fail with a "ssl session id is different" error. This
1958 behaviour is masked when SSL_OP_ALL is used due to
1959 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1960 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1961 followup to PR #377.
1964 *) IA-32 assembler support enhancements: unified ELF targets, support
1965 for SCO/Caldera platforms, fix for Cygwin shared build.
1968 *) Add support for FreeBSD on sparc64. As a consequence, support for
1969 FreeBSD on non-x86 processors is separate from x86 processors on
1970 the config script, much like the NetBSD support.
1971 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1973 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1975 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1978 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1979 code (06) was taken as the first octet of the session ID and the last
1980 octet was ignored consequently. As a result SSLv2 client side session
1981 caching could not have worked due to the session ID mismatch between
1983 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1987 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1988 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1992 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1993 seems that in spite of existing for more than a year, many application
1994 author have done nothing to provide the necessary callbacks, which
1995 means that this particular engine will not work properly anywhere.
1996 This is a very unfortunate situation which forces us, in the name
1997 of usability, to give the hw_ncipher.c a static lock, which is part
1999 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2000 appear in 0.9.8 or later. We EXPECT application authors to have
2001 dealt properly with this when 0.9.8 is released (unless we actually
2002 make such changes in the libcrypto locking code that changes will
2003 have to be made anyway).
2006 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2007 octets have been read, EOF or an error occurs. Without this change
2008 some truncated ASN1 structures will not produce an error.
2011 *) Disable Heimdal support, since it hasn't been fully implemented.
2012 Still give the possibility to force the use of Heimdal, but with
2013 warnings and a request that patches get sent to openssl-dev.
2016 *) Add the VC-CE target, introduce the WINCE sysname, and add
2017 INSTALL.WCE and appropriate conditionals to make it build.
2018 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2020 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2021 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2022 edit numbers of the version.
2023 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2025 *) Introduce safe string copy and catenation functions
2026 (BUF_strlcpy() and BUF_strlcat()).
2027 [Ben Laurie (CHATS) and Richard Levitte]
2029 *) Avoid using fixed-size buffers for one-line DNs.
2030 [Ben Laurie (CHATS)]
2032 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2033 resizing buffers containing secrets, and use where appropriate.
2034 [Ben Laurie (CHATS)]
2036 *) Avoid using fixed size buffers for configuration file location.
2037 [Ben Laurie (CHATS)]
2039 *) Avoid filename truncation for various CA files.
2040 [Ben Laurie (CHATS)]
2042 *) Use sizeof in preference to magic numbers.
2043 [Ben Laurie (CHATS)]
2045 *) Avoid filename truncation in cert requests.
2046 [Ben Laurie (CHATS)]
2048 *) Add assertions to check for (supposedly impossible) buffer
2050 [Ben Laurie (CHATS)]
2052 *) Don't cache truncated DNS entries in the local cache (this could
2053 potentially lead to a spoofing attack).
2054 [Ben Laurie (CHATS)]
2056 *) Fix various buffers to be large enough for hex/decimal
2057 representations in a platform independent manner.
2058 [Ben Laurie (CHATS)]
2060 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2061 resizing buffers containing secrets, and use where appropriate.
2062 [Ben Laurie (CHATS)]
2064 *) Add BIO_indent() to avoid much slightly worrying code to do
2066 [Ben Laurie (CHATS)]
2068 *) Convert sprintf()/BIO_puts() to BIO_printf().
2069 [Ben Laurie (CHATS)]
2071 *) buffer_gets() could terminate with the buffer only half
2073 [Ben Laurie (CHATS)]
2075 *) Add assertions to prevent user-supplied crypto functions from
2076 overflowing internal buffers by having large block sizes, etc.
2077 [Ben Laurie (CHATS)]
2079 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2081 [Ben Laurie (CHATS)]
2083 *) Eliminate unused copy of key in RC4.
2084 [Ben Laurie (CHATS)]
2086 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2087 [Ben Laurie (CHATS)]
2089 *) Fix off-by-one error in EGD path.
2090 [Ben Laurie (CHATS)]
2092 *) If RANDFILE path is too long, ignore instead of truncating.
2093 [Ben Laurie (CHATS)]
2095 *) Eliminate unused and incorrectly sized X.509 structure
2097 [Ben Laurie (CHATS)]
2099 *) Eliminate unused and dangerous function knumber().
2100 [Ben Laurie (CHATS)]
2102 *) Eliminate unused and dangerous structure, KSSL_ERR.
2103 [Ben Laurie (CHATS)]
2105 *) Protect against overlong session ID context length in an encoded
2106 session object. Since these are local, this does not appear to be
2108 [Ben Laurie (CHATS)]
2110 *) Change from security patch (see 0.9.6e below) that did not affect
2111 the 0.9.6 release series:
2113 Remote buffer overflow in SSL3 protocol - an attacker could
2114 supply an oversized master key in Kerberos-enabled versions.
2116 [Ben Laurie (CHATS)]
2118 *) Change the SSL kerb5 codes to match RFC 2712.
2121 *) Make -nameopt work fully for req and add -reqopt switch.
2122 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2124 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2125 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2127 *) Make sure tests can be performed even if the corresponding algorithms
2128 have been removed entirely. This was also the last step to make
2129 OpenSSL compilable with DJGPP under all reasonable conditions.
2130 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2132 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2133 to allow version independent disabling of normally unselected ciphers,
2134 which may be activated as a side-effect of selecting a single cipher.
2136 (E.g., cipher list string "RSA" enables ciphersuites that are left
2137 out of "ALL" because they do not provide symmetric encryption.
2138 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2139 [Lutz Jaenicke, Bodo Moeller]
2141 *) Add appropriate support for separate platform-dependent build
2142 directories. The recommended way to make a platform-dependent
2143 build directory is the following (tested on Linux), maybe with
2146 # Place yourself outside of the OpenSSL source tree. In
2147 # this example, the environment variable OPENSSL_SOURCE
2148 # is assumed to contain the absolute OpenSSL source directory.
2149 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2150 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2151 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2152 mkdir -p `dirname $F`
2153 ln -s $OPENSSL_SOURCE/$F $F
2156 To be absolutely sure not to disturb the source tree, a "make clean"
2157 is a good thing. If it isn't successfull, don't worry about it,
2158 it probably means the source directory is very clean.
2161 *) Make sure any ENGINE control commands make local copies of string
2162 pointers passed to them whenever necessary. Otherwise it is possible
2163 the caller may have overwritten (or deallocated) the original string
2164 data when a later ENGINE operation tries to use the stored values.
2165 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2167 *) Improve diagnostics in file reading and command-line digests.
2168 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2170 *) Add AES modes CFB and OFB to the object database. Correct an
2171 error in AES-CFB decryption.
2174 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2175 allows existing EVP_CIPHER_CTX structures to be reused after
2176 calling EVP_*Final(). This behaviour is used by encryption
2177 BIOs and some applications. This has the side effect that
2178 applications must explicitly clean up cipher contexts with
2179 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2182 *) Check the values of dna and dnb in bn_mul_recursive before calling
2183 bn_mul_comba (a non zero value means the a or b arrays do not contain
2184 n2 elements) and fallback to bn_mul_normal if either is not zero.
2187 *) Fix escaping of non-ASCII characters when using the -subj option
2188 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2191 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2192 form for "surname", serialNumber has no short form.
2193 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2194 therefore remove "mail" short name for "internet 7".
2195 The OID for unique identifiers in X509 certificates is
2196 x500UniqueIdentifier, not uniqueIdentifier.
2197 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2200 *) Add an "init" command to the ENGINE config module and auto initialize
2201 ENGINEs. Without any "init" command the ENGINE will be initialized
2202 after all ctrl commands have been executed on it. If init=1 the
2203 ENGINE is initailized at that point (ctrls before that point are run
2204 on the uninitialized ENGINE and after on the initialized one). If
2205 init=0 then the ENGINE will not be iniatialized at all.
2208 *) Fix the 'app_verify_callback' interface so that the user-defined
2209 argument is actually passed to the callback: In the
2210 SSL_CTX_set_cert_verify_callback() prototype, the callback
2211 declaration has been changed from
2214 int (*cb)(X509_STORE_CTX *,void *);
2215 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2216 i=s->ctx->app_verify_callback(&ctx)
2217 has been changed into
2218 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2220 To update applications using SSL_CTX_set_cert_verify_callback(),
2221 a dummy argument can be added to their callback functions.
2222 [D. K. Smetters <smetters@parc.xerox.com>]
2224 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2225 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2227 *) Add and OPENSSL_LOAD_CONF define which will cause
2228 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2229 This allows older applications to transparently support certain
2230 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2231 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2232 load the config file and OPENSSL_add_all_algorithms_conf() which will
2233 always load it have also been added.
2236 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2237 Adjust NIDs and EVP layer.
2238 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2240 *) Config modules support in openssl utility.
2242 Most commands now load modules from the config file,
2243 though in a few (such as version) this isn't done
2244 because it couldn't be used for anything.
2246 In the case of ca and req the config file used is
2247 the same as the utility itself: that is the -config
2248 command line option can be used to specify an
2252 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2253 use "openssl_conf" if filename is NULL use default openssl config file.
2256 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2257 config section name. Add a new flag to tolerate a missing config file
2258 and move code to CONF_modules_load_file().
2261 *) Support for crypto accelerator cards from Accelerated Encryption
2262 Processing, www.aep.ie. (Use engine 'aep')
2263 The support was copied from 0.9.6c [engine] and adapted/corrected
2264 to work with the new engine framework.
2265 [AEP Inc. and Richard Levitte]
2267 *) Support for SureWare crypto accelerator cards from Baltimore
2268 Technologies. (Use engine 'sureware')
2269 The support was copied from 0.9.6c [engine] and adapted
2270 to work with the new engine framework.
2273 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2274 make the newer ENGINE framework commands for the CHIL engine work.
2275 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2277 *) Make it possible to produce shared libraries on ReliantUNIX.
2278 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2280 *) Add the configuration target debug-linux-ppro.
2281 Make 'openssl rsa' use the general key loading routines
2282 implemented in apps.c, and make those routines able to
2283 handle the key format FORMAT_NETSCAPE and the variant
2285 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2287 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2288 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2290 *) Add -keyform to rsautl, and document -engine.
2291 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2293 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2294 BIO_R_NO_SUCH_FILE error code rather than the generic
2295 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2298 *) Add new functions
2300 ERR_peek_last_error_line
2301 ERR_peek_last_error_line_data.
2302 These are similar to
2305 ERR_peek_error_line_data,
2306 but report on the latest error recorded rather than the first one
2307 still in the error queue.
2308 [Ben Laurie, Bodo Moeller]
2310 *) default_algorithms option in ENGINE config module. This allows things
2312 default_algorithms = ALL
2313 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2316 *) Prelminary ENGINE config module.
2319 *) New experimental application configuration code.
2322 *) Change the AES code to follow the same name structure as all other
2323 symmetric ciphers, and behave the same way. Move everything to
2324 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2325 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2327 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2328 [Ben Laurie and Theo de Raadt]
2330 *) Add option to output public keys in req command.
2331 [Massimiliano Pala madwolf@openca.org]
2333 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2334 (up to about 10% better than before for P-192 and P-224).
2337 *) New functions/macros
2339 SSL_CTX_set_msg_callback(ctx, cb)
2340 SSL_CTX_set_msg_callback_arg(ctx, arg)
2341 SSL_set_msg_callback(ssl, cb)
2342 SSL_set_msg_callback_arg(ssl, arg)
2344 to request calling a callback function
2346 void cb(int write_p, int version, int content_type,
2347 const void *buf, size_t len, SSL *ssl, void *arg)
2349 whenever a protocol message has been completely received
2350 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2351 protocol version according to which the SSL library interprets
2352 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2353 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2354 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2355 specification (change_cipher_spec(20), alert(21), handshake(22)).
2356 'buf' and 'len' point to the actual message, 'ssl' to the
2357 SSL object, and 'arg' is the application-defined value set by
2358 SSL[_CTX]_set_msg_callback_arg().
2360 'openssl s_client' and 'openssl s_server' have new '-msg' options
2361 to enable a callback that displays all protocol messages.
2364 *) Change the shared library support so shared libraries are built as
2365 soon as the corresponding static library is finished, and thereby get
2366 openssl and the test programs linked against the shared library.
2367 This still only happens when the keyword "shard" has been given to
2368 the configuration scripts.
2370 NOTE: shared library support is still an experimental thing, and
2371 backward binary compatibility is still not guaranteed.
2372 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2374 *) Add support for Subject Information Access extension.
2375 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2377 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2378 additional bytes when new memory had to be allocated, not just
2379 when reusing an existing buffer.
2382 *) New command line and configuration option 'utf8' for the req command.
2383 This allows field values to be specified as UTF8 strings.
2386 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2387 runs for the former and machine-readable output for the latter.
2390 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2391 of the e-mail address in the DN (i.e., it will go into a certificate
2392 extension only). The new configuration file option 'email_in_dn = no'
2393 has the same effect.
2394 [Massimiliano Pala madwolf@openca.org]
2396 *) Change all functions with names starting with des_ to be starting
2397 with DES_ instead. Add wrappers that are compatible with libdes,
2398 but are named _ossl_old_des_*. Finally, add macros that map the
2399 des_* symbols to the corresponding _ossl_old_des_* if libdes
2400 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2401 desired, the des_* symbols will be mapped to DES_*, with one
2404 Since we provide two compatibility mappings, the user needs to
2405 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2406 compatibility is desired. The default (i.e., when that macro
2407 isn't defined) is OpenSSL 0.9.6c compatibility.
2409 There are also macros that enable and disable the support of old
2410 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2411 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2412 are defined, the default will apply: to support the old des routines.
2414 In either case, one must include openssl/des.h to get the correct
2415 definitions. Do not try to just include openssl/des_old.h, that
2418 NOTE: This is a major break of an old API into a new one. Software
2419 authors are encouraged to switch to the DES_ style functions. Some
2420 time in the future, des_old.h and the libdes compatibility functions
2421 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2422 default), and then completely removed.
2425 *) Test for certificates which contain unsupported critical extensions.
2426 If such a certificate is found during a verify operation it is
2427 rejected by default: this behaviour can be overridden by either
2428 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2429 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2430 X509_supported_extension() has also been added which returns 1 if a
2431 particular extension is supported.
2434 *) Modify the behaviour of EVP cipher functions in similar way to digests
2435 to retain compatibility with existing code.
2438 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2439 compatibility with existing code. In particular the 'ctx' parameter does
2440 not have to be to be initialized before the call to EVP_DigestInit() and
2441 it is tidied up after a call to EVP_DigestFinal(). New function
2442 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2443 EVP_MD_CTX_copy() changed to not require the destination to be
2444 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2445 requires the destination to be valid.
2447 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2448 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2451 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2452 so that complete 'Handshake' protocol structures are kept in memory
2453 instead of overwriting 'msg_type' and 'length' with 'body' data.
2456 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2457 [Massimo Santin via Richard Levitte]
2459 *) Major restructuring to the underlying ENGINE code. This includes
2460 reduction of linker bloat, separation of pure "ENGINE" manipulation
2461 (initialisation, etc) from functionality dealing with implementations
2462 of specific crypto iterfaces. This change also introduces integrated
2463 support for symmetric ciphers and digest implementations - so ENGINEs
2464 can now accelerate these by providing EVP_CIPHER and EVP_MD
2465 implementations of their own. This is detailed in crypto/engine/README
2466 as it couldn't be adequately described here. However, there are a few
2467 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2468 were changed in the original introduction of ENGINE code have now
2469 reverted back - the hooking from this code to ENGINE is now a good
2470 deal more passive and at run-time, operations deal directly with
2471 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2472 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2473 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2474 they were not being used by the framework as there is no concept of a
2475 BIGNUM_METHOD and they could not be generalised to the new
2476 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2477 ENGINE_cpy() has been removed as it cannot be consistently defined in
2481 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2484 *) Change mkdef.pl to sort symbols that get the same entry number,
2485 and make sure the automatically generated functions ERR_load_*
2486 become part of libeay.num as well.
2489 *) New function SSL_renegotiate_pending(). This returns true once
2490 renegotiation has been requested (either SSL_renegotiate() call
2491 or HelloRequest/ClientHello receveived from the peer) and becomes
2492 false once a handshake has been completed.
2493 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2494 sends a HelloRequest, but does not ensure that a handshake takes
2495 place. SSL_renegotiate_pending() is useful for checking if the
2496 client has followed the request.)
2499 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2500 By default, clients may request session resumption even during
2501 renegotiation (if session ID contexts permit); with this option,
2502 session resumption is possible only in the first handshake.
2504 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2505 more bits available for options that should not be part of
2506 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2509 *) Add some demos for certificate and certificate request creation.
2512 *) Make maximum certificate chain size accepted from the peer application
2513 settable (SSL*_get/set_max_cert_list()), as proposed by
2514 "Douglas E. Engert" <deengert@anl.gov>.
2517 *) Add support for shared libraries for Unixware-7
2518 (Boyd Lynn Gerber <gerberb@zenez.com>).
2521 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2522 be done prior to destruction. Use this to unload error strings from
2523 ENGINEs that load their own error strings. NB: This adds two new API
2524 functions to "get" and "set" this destroy handler in an ENGINE.
2527 *) Alter all existing ENGINE implementations (except "openssl" and
2528 "openbsd") to dynamically instantiate their own error strings. This
2529 makes them more flexible to be built both as statically-linked ENGINEs
2530 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2531 Also, add stub code to each that makes building them as self-contained
2532 shared-libraries easier (see README.ENGINE).
2535 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2536 implementations into applications that are completely implemented in
2537 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2538 commands that can be used to configure what shared-library to load and
2539 to control aspects of the way it is handled. Also, made an update to
2540 the README.ENGINE file that brings its information up-to-date and
2541 provides some information and instructions on the "dynamic" ENGINE
2542 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2545 *) Make it possible to unload ranges of ERR strings with a new
2546 "ERR_unload_strings" function.
2549 *) Add a copy() function to EVP_MD.
2552 *) Make EVP_MD routines take a context pointer instead of just the
2553 md_data void pointer.
2556 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2557 that the digest can only process a single chunk of data
2558 (typically because it is provided by a piece of
2559 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2560 is only going to provide a single chunk of data, and hence the
2561 framework needn't accumulate the data for oneshot drivers.
2564 *) As with "ERR", make it possible to replace the underlying "ex_data"
2565 functions. This change also alters the storage and management of global
2566 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2567 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2568 index counters. The API functions that use this state have been changed
2569 to take a "class_index" rather than pointers to the class's local STACK
2570 and counter, and there is now an API function to dynamically create new
2571 classes. This centralisation allows us to (a) plug a lot of the
2572 thread-safety problems that existed, and (b) makes it possible to clean
2573 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2574 such data would previously have always leaked in application code and
2575 workarounds were in place to make the memory debugging turn a blind eye
2576 to it. Application code that doesn't use this new function will still
2577 leak as before, but their memory debugging output will announce it now
2578 rather than letting it slide.
2580 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2581 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2582 has a return value to indicate success or failure.
2585 *) Make it possible to replace the underlying "ERR" functions such that the
2586 global state (2 LHASH tables and 2 locks) is only used by the "default"
2587 implementation. This change also adds two functions to "get" and "set"
2588 the implementation prior to it being automatically set the first time
2589 any other ERR function takes place. Ie. an application can call "get",
2590 pass the return value to a module it has just loaded, and that module
2591 can call its own "set" function using that value. This means the
2592 module's "ERR" operations will use (and modify) the error state in the
2593 application and not in its own statically linked copy of OpenSSL code.
2596 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2597 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2598 the operation, and provides a more encapsulated way for external code
2599 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2600 to use these functions rather than manually incrementing the counts.
2602 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2605 *) Add EVP test program.
2608 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2611 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2612 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2613 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2614 These allow a CRL to be built without having to access X509_CRL fields
2615 directly. Modify 'ca' application to use new functions.
2618 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2619 bug workarounds. Rollback attack detection is a security feature.
2620 The problem will only arise on OpenSSL servers when TLSv1 is not
2621 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2622 Software authors not wanting to support TLSv1 will have special reasons
2623 for their choice and can explicitly enable this option.
2624 [Bodo Moeller, Lutz Jaenicke]
2626 *) Rationalise EVP so it can be extended: don't include a union of
2627 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2628 (similar to those existing for EVP_CIPHER_CTX).
2633 EVP_MD_CTX_init(&md); /* new function call */
2634 EVP_DigestInit(&md, EVP_sha1());
2635 EVP_DigestUpdate(&md, in, len);
2636 EVP_DigestFinal(&md, out, NULL);
2637 EVP_MD_CTX_cleanup(&md); /* new function call */
2641 *) Make DES key schedule conform to the usual scheme, as well as
2642 correcting its structure. This means that calls to DES functions
2643 now have to pass a pointer to a des_key_schedule instead of a
2644 plain des_key_schedule (which was actually always a pointer
2647 des_key_schedule ks;
2649 des_set_key_checked(..., &ks);
2650 des_ncbc_encrypt(..., &ks, ...);
2652 (Note that a later change renames 'des_...' into 'DES_...'.)
2655 *) Initial reduction of linker bloat: the use of some functions, such as
2656 PEM causes large amounts of unused functions to be linked in due to
2657 poor organisation. For example pem_all.c contains every PEM function
2658 which has a knock on effect of linking in large amounts of (unused)
2659 ASN1 code. Grouping together similar functions and splitting unrelated
2660 functions prevents this.
2663 *) Cleanup of EVP macros.
2666 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2667 correct _ecb suffix.
2670 *) Add initial OCSP responder support to ocsp application. The
2671 revocation information is handled using the text based index
2672 use by the ca application. The responder can either handle
2673 requests generated internally, supplied in files (for example
2674 via a CGI script) or using an internal minimal server.
2677 *) Add configuration choices to get zlib compression for TLS.
2680 *) Changes to Kerberos SSL for RFC 2712 compliance:
2681 1. Implemented real KerberosWrapper, instead of just using
2682 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2683 2. Implemented optional authenticator field of KerberosWrapper.
2685 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2686 and authenticator structs; see crypto/krb5/.
2688 Generalized Kerberos calls to support multiple Kerberos libraries.
2689 [Vern Staats <staatsvr@asc.hpc.mil>,
2690 Jeffrey Altman <jaltman@columbia.edu>
2691 via Richard Levitte]
2693 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2694 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2695 values for each of the key sizes rather than having just
2696 parameters (and 'speed' generating keys each time).
2699 *) Speed up EVP routines.
2702 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2703 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2704 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2705 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2707 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2708 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2709 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2712 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2714 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2717 *) Added the OS2-EMX target.
2718 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2720 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2721 to support NCONF routines in extension code. New function CONF_set_nconf()
2722 to allow functions which take an NCONF to also handle the old LHASH
2723 structure: this means that the old CONF compatible routines can be
2724 retained (in particular wrt extensions) without having to duplicate the
2725 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2728 *) Enhance the general user interface with mechanisms for inner control
2729 and with possibilities to have yes/no kind of prompts.
2732 *) Change all calls to low level digest routines in the library and
2733 applications to use EVP. Add missing calls to HMAC_cleanup() and
2734 don't assume HMAC_CTX can be copied using memcpy().
2735 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2737 *) Add the possibility to control engines through control names but with
2738 arbitrary arguments instead of just a string.
2739 Change the key loaders to take a UI_METHOD instead of a callback
2740 function pointer. NOTE: this breaks binary compatibility with earlier
2741 versions of OpenSSL [engine].
2742 Adapt the nCipher code for these new conditions and add a card insertion
2746 *) Enhance the general user interface with mechanisms to better support
2747 dialog box interfaces, application-defined prompts, the possibility
2748 to use defaults (for example default passwords from somewhere else)
2749 and interrupts/cancellations.
2752 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2753 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2756 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2757 tidy up some unnecessarily weird code in 'sk_new()').
2758 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2760 *) Change the key loading routines for ENGINEs to use the same kind
2761 callback (pem_password_cb) as all other routines that need this
2765 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2766 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2767 than this minimum value is recommended.
2770 *) New random seeder for OpenVMS, using the system process statistics
2771 that are easily reachable.
2774 *) Windows apparently can't transparently handle global
2775 variables defined in DLLs. Initialisations such as:
2777 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2779 wont compile. This is used by the any applications that need to
2780 declare their own ASN1 modules. This was fixed by adding the option
2781 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2782 needed for static libraries under Win32.
2785 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2786 setting of purpose and trust fields. New X509_STORE trust and
2787 purpose functions and tidy up setting in other SSL functions.
2790 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2791 structure. These are inherited by X509_STORE_CTX when it is
2792 initialised. This allows various defaults to be set in the
2793 X509_STORE structure (such as flags for CRL checking and custom
2794 purpose or trust settings) for functions which only use X509_STORE_CTX
2795 internally such as S/MIME.
2797 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2798 trust settings if they are not set in X509_STORE. This allows X509_STORE
2799 purposes and trust (in S/MIME for example) to override any set by default.
2801 Add command line options for CRL checking to smime, s_client and s_server
2805 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2806 are set then the CRL is looked up in the X509_STORE structure and
2807 its validity and signature checked, then if the certificate is found
2808 in the CRL the verify fails with a revoked error.
2810 Various new CRL related callbacks added to X509_STORE_CTX structure.
2812 Command line options added to 'verify' application to support this.
2814 This needs some additional work, such as being able to handle multiple
2815 CRLs with different times, extension based lookup (rather than just
2816 by subject name) and ultimately more complete V2 CRL extension
2820 *) Add a general user interface API (crypto/ui/). This is designed
2821 to replace things like des_read_password and friends (backward
2822 compatibility functions using this new API are provided).
2823 The purpose is to remove prompting functions from the DES code
2824 section as well as provide for prompting through dialog boxes in
2825 a window system and the like.
2828 *) Add "ex_data" support to ENGINE so implementations can add state at a
2829 per-structure level rather than having to store it globally.
2832 *) Make it possible for ENGINE structures to be copied when retrieved by
2833 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2834 This causes the "original" ENGINE structure to act like a template,
2835 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2836 operational state can be localised to each ENGINE structure, despite the
2837 fact they all share the same "methods". New ENGINE structures returned in
2838 this case have no functional references and the return value is the single
2839 structural reference. This matches the single structural reference returned
2840 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2844 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2845 needs to match any other type at all we need to manually clear the
2849 *) Changes to the "openssl engine" utility to include;
2850 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2851 about an ENGINE's available control commands.
2852 - executing control commands from command line arguments using the
2853 '-pre' and '-post' switches. '-post' is only used if '-t' is
2854 specified and the ENGINE is successfully initialised. The syntax for
2855 the individual commands are colon-separated, for example;
2856 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2859 *) New dynamic control command support for ENGINEs. ENGINEs can now
2860 declare their own commands (numbers), names (strings), descriptions,
2861 and input types for run-time discovery by calling applications. A
2862 subset of these commands are implicitly classed as "executable"
2863 depending on their input type, and only these can be invoked through
2864 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2865 can be based on user input, config files, etc). The distinction is
2866 that "executable" commands cannot return anything other than a boolean
2867 result and can only support numeric or string input, whereas some
2868 discoverable commands may only be for direct use through
2869 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2870 pointers, or other custom uses. The "executable" commands are to
2871 support parameterisations of ENGINE behaviour that can be
2872 unambiguously defined by ENGINEs and used consistently across any
2873 OpenSSL-based application. Commands have been added to all the
2874 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2875 control over shared-library paths without source code alterations.
2878 *) Changed all ENGINE implementations to dynamically allocate their
2879 ENGINEs rather than declaring them statically. Apart from this being
2880 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2881 this also allows the implementations to compile without using the
2882 internal engine_int.h header.
2885 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2886 'const' value. Any code that should be able to modify a RAND_METHOD
2887 should already have non-const pointers to it (ie. they should only
2888 modify their own ones).
2891 *) Made a variety of little tweaks to the ENGINE code.
2892 - "atalla" and "ubsec" string definitions were moved from header files
2893 to C code. "nuron" string definitions were placed in variables
2894 rather than hard-coded - allowing parameterisation of these values
2895 later on via ctrl() commands.
2896 - Removed unused "#if 0"'d code.
2897 - Fixed engine list iteration code so it uses ENGINE_free() to release
2898 structural references.
2899 - Constified the RAND_METHOD element of ENGINE structures.
2900 - Constified various get/set functions as appropriate and added
2901 missing functions (including a catch-all ENGINE_cpy that duplicates
2902 all ENGINE values onto a new ENGINE except reference counts/state).
2903 - Removed NULL parameter checks in get/set functions. Setting a method
2904 or function to NULL is a way of cancelling out a previously set
2905 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2906 and doesn't justify the extra error symbols and code.
2907 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2908 flags from engine_int.h to engine.h.
2909 - Changed prototypes for ENGINE handler functions (init(), finish(),
2910 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2913 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2914 to the algorithm using long division. The binary algorithm can be
2915 used only if the modulus is odd. On 32-bit systems, it is faster
2916 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2917 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2918 up to 450 bits. In 64-bit environments, the binary algorithm
2919 appears to be advantageous for much longer moduli; here we use it
2920 for moduli up to 2048 bits.
2923 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2924 could not support the combine flag in choice fields.
2927 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2928 extensions from a certificate request to the certificate.
2931 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2932 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2933 file: this allows the display of the certificate about to be
2934 signed to be customised, to allow certain fields to be included
2935 or excluded and extension details. The old system didn't display
2936 multicharacter strings properly, omitted fields not in the policy
2937 and couldn't display additional details such as extensions.
2940 *) Function EC_POINTs_mul for multiple scalar multiplication
2941 of an arbitrary number of elliptic curve points
2942 \sum scalars[i]*points[i],
2943 optionally including the generator defined for the EC_GROUP:
2944 scalar*generator + \sum scalars[i]*points[i].
2946 EC_POINT_mul is a simple wrapper function for the typical case
2947 that the point list has just one item (besides the optional
2951 *) First EC_METHODs for curves over GF(p):
2953 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2954 operations and provides various method functions that can also
2955 operate with faster implementations of modular arithmetic.
2957 EC_GFp_mont_method() reuses most functions that are part of
2958 EC_GFp_simple_method, but uses Montgomery arithmetic.
2960 [Bodo Moeller; point addition and point doubling
2961 implementation directly derived from source code provided by
2962 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2964 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2965 crypto/ec/ec_lib.c):
2967 Curves are EC_GROUP objects (with an optional group generator)
2968 based on EC_METHODs that are built into the library.
2970 Points are EC_POINT objects based on EC_GROUP objects.
2972 Most of the framework would be able to handle curves over arbitrary
2973 finite fields, but as there are no obvious types for fields other
2974 than GF(p), some functions are limited to that for now.
2977 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2978 that the file contains a complete HTTP response.
2981 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2982 change the def and num file printf format specifier from "%-40sXXX"
2983 to "%-39s XXX". The latter will always guarantee a space after the
2984 field while the former will cause them to run together if the field
2985 is 40 of more characters long.
2988 *) Constify the cipher and digest 'method' functions and structures
2989 and modify related functions to take constant EVP_MD and EVP_CIPHER
2993 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2994 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2997 *) Modify EVP_Digest*() routines so they now return values. Although the
2998 internal software routines can never fail additional hardware versions
3002 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3004 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3005 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3008 ERR_R_NESTED_ASN1_ERROR
3010 ERR_R_MISSING_ASN1_EOS
3011 were 4 .. 9, conflicting with
3012 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3014 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3015 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3017 Add new error code 'ERR_R_INTERNAL_ERROR'.
3020 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3024 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3025 sets the subject name for a new request or supersedes the
3026 subject name in a given request. Formats that can be parsed are
3027 'CN=Some Name, OU=myOU, C=IT'
3029 'CN=Some Name/OU=myOU/C=IT'.
3031 Add options '-batch' and '-verbose' to 'openssl req'.
3032 [Massimiliano Pala <madwolf@hackmasters.net>]
3034 *) Introduce the possibility to access global variables through
3035 functions on platform were that's the best way to handle exporting
3036 global variables in shared libraries. To enable this functionality,
3037 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3038 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3039 is normally done by Configure or something similar).
3041 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3042 in the source file (foo.c) like this:
3044 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3045 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3047 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3048 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3050 OPENSSL_DECLARE_GLOBAL(int,foo);
3051 #define foo OPENSSL_GLOBAL_REF(foo)
3052 OPENSSL_DECLARE_GLOBAL(double,bar);
3053 #define bar OPENSSL_GLOBAL_REF(bar)
3055 The #defines are very important, and therefore so is including the
3056 header file everywhere where the defined globals are used.
3058 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3059 of ASN.1 items, but that structure is a bit different.
3061 The largest change is in util/mkdef.pl which has been enhanced with
3062 better and easier to understand logic to choose which symbols should
3063 go into the Windows .def files as well as a number of fixes and code
3064 cleanup (among others, algorithm keywords are now sorted
3065 lexicographically to avoid constant rewrites).
3068 *) In BN_div() keep a copy of the sign of 'num' before writing the
3069 result to 'rm' because if rm==num the value will be overwritten
3070 and produce the wrong result if 'num' is negative: this caused
3071 problems with BN_mod() and BN_nnmod().
3074 *) Function OCSP_request_verify(). This checks the signature on an
3075 OCSP request and verifies the signer certificate. The signer
3076 certificate is just checked for a generic purpose and OCSP request
3080 *) Add OCSP_check_validity() function to check the validity of OCSP
3081 responses. OCSP responses are prepared in real time and may only
3082 be a few seconds old. Simply checking that the current time lies
3083 between thisUpdate and nextUpdate max reject otherwise valid responses
3084 caused by either OCSP responder or client clock inaccuracy. Instead
3085 we allow thisUpdate and nextUpdate to fall within a certain period of
3086 the current time. The age of the response can also optionally be
3087 checked. Two new options -validity_period and -status_age added to
3091 *) If signature or public key algorithm is unrecognized print out its
3092 OID rather that just UNKNOWN.
3095 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3096 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3097 ID to be generated from the issuer certificate alone which can then be
3098 passed to OCSP_id_issuer_cmp().
3101 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3102 ASN1 modules to export functions returning ASN1_ITEM pointers
3103 instead of the ASN1_ITEM structures themselves. This adds several
3104 new macros which allow the underlying ASN1 function/structure to
3105 be accessed transparently. As a result code should not use ASN1_ITEM
3106 references directly (such as &X509_it) but instead use the relevant
3107 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3108 use of the new ASN1 code on platforms where exporting structures
3109 is problematical (for example in shared libraries) but exporting
3110 functions returning pointers to structures is not.
3113 *) Add support for overriding the generation of SSL/TLS session IDs.
3114 These callbacks can be registered either in an SSL_CTX or per SSL.
3115 The purpose of this is to allow applications to control, if they wish,
3116 the arbitrary values chosen for use as session IDs, particularly as it
3117 can be useful for session caching in multiple-server environments. A
3118 command-line switch for testing this (and any client code that wishes
3119 to use such a feature) has been added to "s_server".
3120 [Geoff Thorpe, Lutz Jaenicke]
3122 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3123 of the form '#if defined(...) || defined(...) || ...' and
3124 '#if !defined(...) && !defined(...) && ...'. This also avoids
3125 the growing number of special cases it was previously handling.
3128 *) Make all configuration macros available for application by making
3129 sure they are available in opensslconf.h, by giving them names starting
3130 with "OPENSSL_" to avoid conflicts with other packages and by making
3131 sure e_os2.h will cover all platform-specific cases together with
3133 Additionally, it is now possible to define configuration/platform-
3134 specific names (called "system identities"). In the C code, these
3135 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3136 macro with the name beginning with "OPENSSL_SYS_", which is determined
3137 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3141 *) New option -set_serial to 'req' and 'x509' this allows the serial
3142 number to use to be specified on the command line. Previously self
3143 signed certificates were hard coded with serial number 0 and the
3144 CA options of 'x509' had to use a serial number in a file which was
3148 *) New options to 'ca' utility to support V2 CRL entry extensions.
3149 Currently CRL reason, invalidity date and hold instruction are
3150 supported. Add new CRL extensions to V3 code and some new objects.
3153 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3154 disable standard block padding (aka PKCS#5 padding) in the EVP
3155 API, which was previously mandatory. This means that the data is
3156 not padded in any way and so the total length much be a multiple
3157 of the block size, otherwise an error occurs.
3160 *) Initial (incomplete) OCSP SSL support.
3163 *) New function OCSP_parse_url(). This splits up a URL into its host,
3164 port and path components: primarily to parse OCSP URLs. New -url
3165 option to ocsp utility.
3168 *) New nonce behavior. The return value of OCSP_check_nonce() now
3169 reflects the various checks performed. Applications can decide
3170 whether to tolerate certain situations such as an absent nonce
3171 in a response when one was present in a request: the ocsp application
3172 just prints out a warning. New function OCSP_add1_basic_nonce()
3173 this is to allow responders to include a nonce in a response even if
3174 the request is nonce-less.
3177 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3178 skipped when using openssl x509 multiple times on a single input file,
3179 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3182 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3183 set string type: to handle setting ASN1_TIME structures. Fix ca
3184 utility to correctly initialize revocation date of CRLs.
3187 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3188 the clients preferred ciphersuites and rather use its own preferences.
3189 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3190 Internet Explorer by ensuring unchanged hash method during stepup.
3191 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3194 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3195 to aes and add a new 'exist' option to print out symbols that don't
3199 *) Additional options to ocsp utility to allow flags to be set and
3200 additional certificates supplied.
3203 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3204 OCSP client a number of certificate to only verify the response
3208 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3209 handle the new API. Currently only ECB, CBC modes supported. Add new
3212 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3213 Encryption Standard (AES) Ciphersuites for Transport Layer
3214 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3215 not enabled by default and were not part of the "ALL" ciphersuite
3216 alias because they were not yet official; they could be
3217 explicitly requested by specifying the "AESdraft" ciphersuite
3218 group alias. In the final release of OpenSSL 0.9.7, the group
3219 alias is called "AES" and is part of "ALL".)
3220 [Ben Laurie, Steve Henson, Bodo Moeller]
3222 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3223 request to response.
3226 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3227 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3228 extract information from a certificate request. OCSP_response_create()
3229 creates a response and optionally adds a basic response structure.
3230 OCSP_basic_add1_status() adds a complete single response to a basic
3231 response and returns the OCSP_SINGLERESP structure just added (to allow
3232 extensions to be included for example). OCSP_basic_add1_cert() adds a
3233 certificate to a basic response and OCSP_basic_sign() signs a basic
3234 response with various flags. New helper functions ASN1_TIME_check()
3235 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3236 (converts ASN1_TIME to GeneralizedTime).
3239 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3240 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3241 structure from a certificate. X509_pubkey_digest() digests the public_key
3242 contents: this is used in various key identifiers.
3245 *) Make sk_sort() tolerate a NULL argument.
3246 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3248 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3249 passed by the function are trusted implicitly. If any of them signed the
3250 response then it is assumed to be valid and is not verified.
3253 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3254 to data. This was previously part of the PKCS7 ASN1 code. This
3255 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3256 [Steve Henson, reported by Kenneth R. Robinette
3257 <support@securenetterm.com>]
3259 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3260 routines: without these tracing memory leaks is very painful.
3261 Fix leaks in PKCS12 and PKCS7 routines.
3264 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3265 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3266 effectively meant GeneralizedTime would never be used. Now it
3267 is initialised to -1 but X509_time_adj() now has to check the value
3268 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3269 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3270 [Steve Henson, reported by Kenneth R. Robinette
3271 <support@securenetterm.com>]
3273 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3274 result in a zero length in the ASN1_INTEGER structure which was
3275 not consistent with the structure when d2i_ASN1_INTEGER() was used
3276 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3277 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3278 where it did not print out a minus for negative ASN1_INTEGER.
3281 *) Add summary printout to ocsp utility. The various functions which
3282 convert status values to strings have been renamed to:
3283 OCSP_response_status_str(), OCSP_cert_status_str() and
3284 OCSP_crl_reason_str() and are no longer static. New options
3285 to verify nonce values and to disable verification. OCSP response
3286 printout format cleaned up.
3289 *) Add additional OCSP certificate checks. These are those specified
3290 in RFC2560. This consists of two separate checks: the CA of the
3291 certificate being checked must either be the OCSP signer certificate
3292 or the issuer of the OCSP signer certificate. In the latter case the
3293 OCSP signer certificate must contain the OCSP signing extended key
3294 usage. This check is performed by attempting to match the OCSP
3295 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3296 in the OCSP_CERTID structures of the response.
3299 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3300 and related routines. This uses the standard OpenSSL certificate
3301 verify routines to perform initial checks (just CA validity) and
3302 to obtain the certificate chain. Then additional checks will be
3303 performed on the chain. Currently the root CA is checked to see
3304 if it is explicitly trusted for OCSP signing. This is used to set
3305 a root CA as a global signing root: that is any certificate that
3306 chains to that CA is an acceptable OCSP signing certificate.
3309 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3310 extensions from a separate configuration file.
3311 As when reading extensions from the main configuration file,
3312 the '-extensions ...' option may be used for specifying the
3314 [Massimiliano Pala <madwolf@comune.modena.it>]
3316 *) New OCSP utility. Allows OCSP requests to be generated or
3317 read. The request can be sent to a responder and the output
3318 parsed, outputed or printed in text form. Not complete yet:
3319 still needs to check the OCSP response validity.
3322 *) New subcommands for 'openssl ca':
3323 'openssl ca -status <serial>' prints the status of the cert with
3324 the given serial number (according to the index file).
3325 'openssl ca -updatedb' updates the expiry status of certificates
3327 [Massimiliano Pala <madwolf@comune.modena.it>]
3329 *) New '-newreq-nodes' command option to CA.pl. This is like
3330 '-newreq', but calls 'openssl req' with the '-nodes' option
3331 so that the resulting key is not encrypted.
3332 [Damien Miller <djm@mindrot.org>]
3334 *) New configuration for the GNU Hurd.
3335 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3337 *) Initial code to implement OCSP basic response verify. This
3338 is currently incomplete. Currently just finds the signer's
3339 certificate and verifies the signature on the response.
3342 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3343 value of OPENSSLDIR. This is available via the new '-d' option
3344 to 'openssl version', and is also included in 'openssl version -a'.
3347 *) Allowing defining memory allocation callbacks that will be given
3348 file name and line number information in additional arguments
3349 (a const char* and an int). The basic functionality remains, as
3350 well as the original possibility to just replace malloc(),
3351 realloc() and free() by functions that do not know about these
3352 additional arguments. To register and find out the current
3353 settings for extended allocation functions, the following
3354 functions are provided:
3356 CRYPTO_set_mem_ex_functions
3357 CRYPTO_set_locked_mem_ex_functions
3358 CRYPTO_get_mem_ex_functions
3359 CRYPTO_get_locked_mem_ex_functions
3361 These work the same way as CRYPTO_set_mem_functions and friends.
3362 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3363 extended allocation function is enabled.
3364 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3365 a conventional allocation function is enabled.
3366 [Richard Levitte, Bodo Moeller]
3368 *) Finish off removing the remaining LHASH function pointer casts.
3369 There should no longer be any prototype-casting required when using
3370 the LHASH abstraction, and any casts that remain are "bugs". See
3371 the callback types and macros at the head of lhash.h for details
3372 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3375 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3376 If /dev/[u]random devices are not available or do not return enough
3377 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3379 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3380 /etc/entropy will be queried once each in this sequence, quering stops
3381 when enough entropy was collected without querying more sockets.
3384 *) Change the Unix RAND_poll() variant to be able to poll several
3385 random devices, as specified by DEVRANDOM, until a sufficient amount
3386 of data has been collected. We spend at most 10 ms on each file
3387 (select timeout) and read in non-blocking mode. DEVRANDOM now
3388 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3389 (previously it was just the string "/dev/urandom"), so on typical
3390 platforms the 10 ms delay will never occur.
3391 Also separate out the Unix variant to its own file, rand_unix.c.
3392 For VMS, there's a currently-empty rand_vms.c.
3395 *) Move OCSP client related routines to ocsp_cl.c. These
3396 provide utility functions which an application needing
3397 to issue a request to an OCSP responder and analyse the
3398 response will typically need: as opposed to those which an
3399 OCSP responder itself would need which will be added later.
3401 OCSP_request_sign() signs an OCSP request with an API similar
3402 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3403 response. OCSP_response_get1_basic() extracts basic response
3404 from response. OCSP_resp_find_status(): finds and extracts status
3405 information from an OCSP_CERTID structure (which will be created
3406 when the request structure is built). These are built from lower
3407 level functions which work on OCSP_SINGLERESP structures but
3408 wont normally be used unless the application wishes to examine
3409 extensions in the OCSP response for example.
3411 Replace nonce routines with a pair of functions.
3412 OCSP_request_add1_nonce() adds a nonce value and optionally
3413 generates a random value. OCSP_check_nonce() checks the
3414 validity of the nonce in an OCSP response.
3417 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3418 This doesn't copy the supplied OCSP_CERTID and avoids the
3419 need to free up the newly created id. Change return type
3420 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3421 This can then be used to add extensions to the request.
3422 Deleted OCSP_request_new(), since most of its functionality
3423 is now in OCSP_REQUEST_new() (and the case insensitive name
3424 clash) apart from the ability to set the request name which
3425 will be added elsewhere.
3428 *) Update OCSP API. Remove obsolete extensions argument from
3429 various functions. Extensions are now handled using the new
3430 OCSP extension code. New simple OCSP HTTP function which
3431 can be used to send requests and parse the response.
3434 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3435 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3436 uses the special reorder version of SET OF to sort the attributes
3437 and reorder them to match the encoded order. This resolves a long
3438 standing problem: a verify on a PKCS7 structure just after signing
3439 it used to fail because the attribute order did not match the
3440 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3441 it uses the received order. This is necessary to tolerate some broken
3442 software that does not order SET OF. This is handled by encoding
3443 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3444 to produce the required SET OF.
3447 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3448 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3449 files to get correct declarations of the ASN.1 item variables.
3452 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3453 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3454 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3455 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3456 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3457 ASN1_ITEM and no wrapper functions.
3460 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3461 replace the old function pointer based I/O routines. Change most of
3462 the *_d2i_bio() and *_d2i_fp() functions to use these.
3465 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3466 lines, recognice more "algorithms" that can be deselected, and make
3467 it complain about algorithm deselection that isn't recognised.
3470 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3471 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3472 to use new functions. Add NO_ASN1_OLD which can be set to remove
3473 some old style ASN1 functions: this can be used to determine if old
3474 code will still work when these eventually go away.
3477 *) New extension functions for OCSP structures, these follow the
3478 same conventions as certificates and CRLs.
3481 *) New function X509V3_add1_i2d(). This automatically encodes and
3482 adds an extension. Its behaviour can be customised with various
3483 flags to append, replace or delete. Various wrappers added for
3484 certifcates and CRLs.
3487 *) Fix to avoid calling the underlying ASN1 print routine when
3488 an extension cannot be parsed. Correct a typo in the
3489 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3492 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3493 entries for variables.
3496 *) Add functionality to apps/openssl.c for detecting locking
3497 problems: As the program is single-threaded, all we have
3498 to do is register a locking callback using an array for
3499 storing which locks are currently held by the program.
3502 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3503 SSL_get_ex_data_X509_STORE_idx(), which is used in
3504 ssl_verify_cert_chain() and thus can be called at any time
3505 during TLS/SSL handshakes so that thread-safety is essential.
3506 Unfortunately, the ex_data design is not at all suited
3507 for multi-threaded use, so it probably should be abolished.
3510 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3511 [Broadcom, tweaked and integrated by Geoff Thorpe]
3513 *) Move common extension printing code to new function
3514 X509V3_print_extensions(). Reorganise OCSP print routines and
3515 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3518 *) New function X509_signature_print() to remove duplication in some
3522 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3523 set (this was treated exactly the same as SET OF previously). This
3524 is used to reorder the STACK representing the structure to match the
3525 encoding. This will be used to get round a problem where a PKCS7
3526 structure which was signed could not be verified because the STACK
3527 order did not reflect the encoded order.
3530 *) Reimplement the OCSP ASN1 module using the new code.
3533 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3534 for its ASN1 operations. The old style function pointers still exist
3535 for now but they will eventually go away.
3538 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3539 completely replaces the old ASN1 functionality with a table driven
3540 encoder and decoder which interprets an ASN1_ITEM structure describing
3541 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3542 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3543 has also been converted to the new form.
3546 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3547 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3548 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3549 for negative moduli.
3552 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3553 of not touching the result's sign bit.
3556 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3560 *) Changed the LHASH code to use prototypes for callbacks, and created
3561 macros to declare and implement thin (optionally static) functions
3562 that provide type-safety and avoid function pointer casting for the
3563 type-specific callbacks.
3566 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3568 [Veers Staats <staatsvr@asc.hpc.mil>,
3569 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3571 *) Reformat the FAQ so the different questions and answers can be divided
3572 in sections depending on the subject.
3575 *) Have the zlib compression code load ZLIB.DLL dynamically under
3579 *) New function BN_mod_sqrt for computing square roots modulo a prime
3580 (using the probabilistic Tonelli-Shanks algorithm unless
3581 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3582 be handled deterministically).
3583 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3585 *) Make BN_mod_inverse faster by explicitly handling small quotients
3586 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3587 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3590 *) New function BN_kronecker.
3593 *) Fix BN_gcd so that it works on negative inputs; the result is
3594 positive unless both parameters are zero.
3595 Previously something reasonably close to an infinite loop was
3596 possible because numbers could be growing instead of shrinking
3597 in the implementation of Euclid's algorithm.
3600 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3601 sign of the number in question.
3603 Fix BN_is_word(a,w) to work correctly for w == 0.
3605 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3606 because its test if the absolute value of 'a' equals 'w'.
3607 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3608 it exists mostly for use in the implementations of BN_is_zero(),
3609 BN_is_one(), and BN_is_word().
3612 *) New function BN_swap.
3615 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3616 the exponentiation functions are more likely to produce reasonable
3617 results on negative inputs.
3620 *) Change BN_mod_mul so that the result is always non-negative.
3621 Previously, it could be negative if one of the factors was negative;
3622 I don't think anyone really wanted that behaviour.
3625 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3626 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3627 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3628 and add new functions:
3637 BN_mod_lshift1_quick
3641 These functions always generate non-negative results.
3643 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3644 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3646 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3647 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3648 be reduced modulo m.
3649 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3652 The following entry accidentily appeared in the CHANGES file
3653 distributed with OpenSSL 0.9.7. The modifications described in
3654 it do *not* apply to OpenSSL 0.9.7.
3656 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3657 was actually never needed) and in BN_mul(). The removal in BN_mul()
3658 required a small change in bn_mul_part_recursive() and the addition
3659 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3660 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3661 bn_sub_words() and bn_add_words() except they take arrays with
3666 *) In 'openssl passwd', verify passwords read from the terminal
3667 unless the '-salt' option is used (which usually means that
3668 verification would just waste user's time since the resulting
3669 hash is going to be compared with some given password hash)
3670 or the new '-noverify' option is used.
3672 This is an incompatible change, but it does not affect
3673 non-interactive use of 'openssl passwd' (passwords on the command
3674 line, '-stdin' option, '-in ...' option) and thus should not
3678 *) Remove all references to RSAref, since there's no more need for it.
3681 *) Make DSO load along a path given through an environment variable
3682 (SHLIB_PATH) with shl_load().
3685 *) Constify the ENGINE code as a result of BIGNUM constification.
3686 Also constify the RSA code and most things related to it. In a
3687 few places, most notable in the depth of the ASN.1 code, ugly
3688 casts back to non-const were required (to be solved at a later
3692 *) Make it so the openssl application has all engines loaded by default.
3695 *) Constify the BIGNUM routines a little more.
3698 *) Add the following functions:
3700 ENGINE_load_cswift()
3702 ENGINE_load_atalla()
3704 ENGINE_load_builtin_engines()
3706 That way, an application can itself choose if external engines that
3707 are built-in in OpenSSL shall ever be used or not. The benefit is
3708 that applications won't have to be linked with libdl or other dso
3709 libraries unless it's really needed.
3711 Changed 'openssl engine' to load all engines on demand.
3712 Changed the engine header files to avoid the duplication of some
3713 declarations (they differed!).
3716 *) 'openssl engine' can now list capabilities.
3719 *) Better error reporting in 'openssl engine'.
3722 *) Never call load_dh_param(NULL) in s_server.
3725 *) Add engine application. It can currently list engines by name and
3726 identity, and test if they are actually available.
3729 *) Improve RPM specification file by forcing symbolic linking and making
3730 sure the installed documentation is also owned by root.root.
3731 [Damien Miller <djm@mindrot.org>]
3733 *) Give the OpenSSL applications more possibilities to make use of
3734 keys (public as well as private) handled by engines.
3737 *) Add OCSP code that comes from CertCo.
3740 *) Add VMS support for the Rijndael code.
3743 *) Added untested support for Nuron crypto accelerator.
3746 *) Add support for external cryptographic devices. This code was
3747 previously distributed separately as the "engine" branch.
3748 [Geoff Thorpe, Richard Levitte]
3750 *) Rework the filename-translation in the DSO code. It is now possible to
3751 have far greater control over how a "name" is turned into a filename
3752 depending on the operating environment and any oddities about the
3753 different shared library filenames on each system.
3756 *) Support threads on FreeBSD-elf in Configure.
3759 *) Fix for SHA1 assembly problem with MASM: it produces
3760 warnings about corrupt line number information when assembling
3761 with debugging information. This is caused by the overlapping
3763 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3766 NCONF_get_number() has no error checking at all. As a replacement,
3767 NCONF_get_number_e() is defined (_e for "error checking") and is
3768 promoted strongly. The old NCONF_get_number is kept around for
3769 binary backward compatibility.
3770 Make it possible for methods to load from something other than a BIO,
3771 by providing a function pointer that is given a name instead of a BIO.
3772 For example, this could be used to load configuration data from an
3776 *) Fix for non blocking accept BIOs. Added new I/O special reason
3777 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3778 with non blocking I/O was not possible because no retry code was
3779 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3783 *) Added the beginnings of Rijndael support.
3786 *) Fix for bug in DirectoryString mask setting. Add support for
3787 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3788 to allow certificate printing to more controllable, additional
3789 'certopt' option to 'x509' to allow new printing options to be
3793 *) Clean old EAY MD5 hack from e_os.h.
3796 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3798 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3799 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3800 [Joe Orton, Steve Henson]
3802 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3804 *) Fix additional bug revealed by the NISCC test suite:
3806 Stop bug triggering large recursion when presented with
3807 certain ASN.1 tags (CVE-2003-0851)
3810 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3812 *) Fix various bugs revealed by running the NISCC test suite:
3814 Stop out of bounds reads in the ASN1 code when presented with
3815 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3817 If verify callback ignores invalid public key errors don't try to check
3818 certificate signature with the NULL public key.
3822 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3823 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3827 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3828 extra data after the compression methods not only for TLS 1.0
3829 but also for SSL 3.0 (as required by the specification).
3830 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3832 *) Change X509_certificate_type() to mark the key as exported/exportable
3833 when it's 512 *bits* long, not 512 bytes.
3836 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3838 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3839 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3840 a protocol version number mismatch like a decryption error
3841 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3844 *) Turn on RSA blinding by default in the default implementation
3845 to avoid a timing attack. Applications that don't want it can call
3846 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3847 They would be ill-advised to do so in most cases.
3848 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3850 *) Change RSA blinding code so that it works when the PRNG is not
3851 seeded (in this case, the secret RSA exponent is abused as
3852 an unpredictable seed -- if it is not unpredictable, there
3853 is no point in blinding anyway). Make RSA blinding thread-safe
3854 by remembering the creator's thread ID in rsa->blinding and
3855 having all other threads use local one-time blinding factors
3856 (this requires more computation than sharing rsa->blinding, but
3857 avoids excessive locking; and if an RSA object is not shared
3858 between threads, blinding will still be very fast).
3861 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3863 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3864 via timing by performing a MAC computation even if incorrrect
3865 block cipher padding has been found. This is a countermeasure
3866 against active attacks where the attacker has to distinguish
3867 between bad padding and a MAC verification error. (CVE-2003-0078)
3869 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3870 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3871 Martin Vuagnoux (EPFL, Ilion)]
3873 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3875 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3876 memory from it's contents. This is done with a counter that will
3877 place alternating values in each byte. This can be used to solve
3878 two issues: 1) the removal of calls to memset() by highly optimizing
3879 compilers, and 2) cleansing with other values than 0, since those can
3880 be read through on certain media, for example a swap space on disk.
3883 *) Bugfix: client side session caching did not work with external caching,
3884 because the session->cipher setting was not restored when reloading
3885 from the external cache. This problem was masked, when
3886 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3887 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3890 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3891 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3892 [Zeev Lieber <zeev-l@yahoo.com>]
3894 *) Undo an undocumented change introduced in 0.9.6e which caused
3895 repeated calls to OpenSSL_add_all_ciphers() and
3896 OpenSSL_add_all_digests() to be ignored, even after calling
3900 *) Change the default configuration reader to deal with last line not
3901 being properly terminated.
3904 *) Change X509_NAME_cmp() so it applies the special rules on handling
3905 DN values that are of type PrintableString, as well as RDNs of type
3906 emailAddress where the value has the type ia5String.
3907 [stefank@valicert.com via Richard Levitte]
3909 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3910 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3911 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3912 the bitwise-OR of the two for use by the majority of applications
3913 wanting this behaviour, and update the docs. The documented
3914 behaviour and actual behaviour were inconsistent and had been
3915 changing anyway, so this is more a bug-fix than a behavioural
3917 [Geoff Thorpe, diagnosed by Nadav Har'El]
3919 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3920 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3923 *) Fix initialization code race conditions in
3924 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3925 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3926 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3927 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3928 ssl2_get_cipher_by_char(),
3929 ssl3_get_cipher_by_char().
3930 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3932 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3933 the cached sessions are flushed, as the remove_cb() might use ex_data
3934 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3935 (see [openssl.org #212]).
3936 [Geoff Thorpe, Lutz Jaenicke]
3938 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3939 length, instead of the encoding length to d2i_ASN1_OBJECT.
3942 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3944 *) [In 0.9.6g-engine release:]
3945 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3946 [Lynn Gazis <lgazis@rainbow.com>]
3948 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3950 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3951 and get fix the header length calculation.
3952 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3953 Alon Kantor <alonk@checkpoint.com> (and others),
3956 *) Use proper error handling instead of 'assertions' in buffer
3957 overflow checks added in 0.9.6e. This prevents DoS (the
3958 assertions could call abort()).
3959 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3961 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3963 *) Add various sanity checks to asn1_get_length() to reject
3964 the ASN1 length bytes if they exceed sizeof(long), will appear
3965 negative or the content length exceeds the length of the
3967 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3969 *) Fix cipher selection routines: ciphers without encryption had no flags
3970 for the cipher strength set and where therefore not handled correctly
3971 by the selection routines (PR #130).
3974 *) Fix EVP_dsa_sha macro.
3978 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3979 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3980 that was added in OpenSSL 0.9.6d.
3982 As the countermeasure turned out to be incompatible with some
3983 broken SSL implementations, the new option is part of SSL_OP_ALL.
3984 SSL_OP_ALL is usually employed when compatibility with weird SSL
3985 implementations is desired (e.g. '-bugs' option to 's_client' and
3986 's_server'), so the new option is automatically set in many
3990 *) Changes in security patch:
3992 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3993 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3994 Air Force Materiel Command, USAF, under agreement number
3997 *) Add various sanity checks to asn1_get_length() to reject
3998 the ASN1 length bytes if they exceed sizeof(long), will appear
3999 negative or the content length exceeds the length of the
4000 supplied buffer. (CVE-2002-0659)
4001 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4003 *) Assertions for various potential buffer overflows, not known to
4005 [Ben Laurie (CHATS)]
4007 *) Various temporary buffers to hold ASCII versions of integers were
4008 too small for 64 bit platforms. (CVE-2002-0655)
4009 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4011 *) Remote buffer overflow in SSL3 protocol - an attacker could
4012 supply an oversized session ID to a client. (CVE-2002-0656)
4013 [Ben Laurie (CHATS)]
4015 *) Remote buffer overflow in SSL2 protocol - an attacker could
4016 supply an oversized client master key. (CVE-2002-0656)
4017 [Ben Laurie (CHATS)]
4019 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4021 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4022 encoded as NULL) with id-dsa-with-sha1.
4023 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4025 *) Check various X509_...() return values in apps/req.c.
4026 [Nils Larsch <nla@trustcenter.de>]
4028 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4029 an end-of-file condition would erronously be flagged, when the CRLF
4030 was just at the end of a processed block. The bug was discovered when
4031 processing data through a buffering memory BIO handing the data to a
4032 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4033 <ptsekov@syntrex.com> and Nedelcho Stanev.
4036 *) Implement a countermeasure against a vulnerability recently found
4037 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4038 before application data chunks to avoid the use of known IVs
4039 with data potentially chosen by the attacker.
4042 *) Fix length checks in ssl3_get_client_hello().
4045 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4046 to prevent ssl3_read_internal() from incorrectly assuming that
4047 ssl3_read_bytes() found application data while handshake
4048 processing was enabled when in fact s->s3->in_read_app_data was
4049 merely automatically cleared during the initial handshake.
4050 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4052 *) Fix object definitions for Private and Enterprise: they were not
4053 recognized in their shortname (=lowercase) representation. Extend
4054 obj_dat.pl to issue an error when using undefined keywords instead
4055 of silently ignoring the problem (Svenning Sorensen
4056 <sss@sss.dnsalias.net>).
4059 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4060 generators, i.e. generators other than 2 and 5. (Previously, the
4061 code did not properly initialise the 'add' and 'rem' values to
4062 BN_generate_prime().)
4064 In the new general case, we do not insist that 'generator' is
4065 actually a primitive root: This requirement is rather pointless;
4066 a generator of the order-q subgroup is just as good, if not
4070 *) Map new X509 verification errors to alerts. Discovered and submitted by
4071 Tom Wu <tom@arcot.com>.
4074 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4075 returning non-zero before the data has been completely received
4076 when using non-blocking I/O.
4077 [Bodo Moeller; problem pointed out by John Hughes]
4079 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4080 [Ben Laurie, Lutz Jaenicke]
4082 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4083 Yoram Zahavi <YoramZ@gilian.com>).
4086 *) Add information about CygWin 1.3 and on, and preserve proper
4087 configuration for the versions before that.
4088 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4090 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4091 check whether we deal with a copy of a session and do not delete from
4092 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4093 <izhar@checkpoint.com>.
4096 *) Do not store session data into the internal session cache, if it
4097 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4098 flag is set). Proposed by Aslam <aslam@funk.com>.
4101 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4105 *) [In 0.9.6d-engine release:]
4106 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4107 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4109 *) Add the configuration target linux-s390x.
4110 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4112 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4113 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4114 variable as an indication that a ClientHello message has been
4115 received. As the flag value will be lost between multiple
4116 invocations of ssl3_accept when using non-blocking I/O, the
4117 function may not be aware that a handshake has actually taken
4118 place, thus preventing a new session from being added to the
4121 To avoid this problem, we now set s->new_session to 2 instead of
4122 using a local variable.
4123 [Lutz Jaenicke, Bodo Moeller]
4125 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4126 if the SSL_R_LENGTH_MISMATCH error is detected.
4127 [Geoff Thorpe, Bodo Moeller]
4129 *) New 'shared_ldflag' column in Configure platform table.
4132 *) Fix EVP_CIPHER_mode macro.
4133 ["Dan S. Camper" <dan@bti.net>]
4135 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4136 type, we must throw them away by setting rr->length to 0.
4137 [D P Chang <dpc@qualys.com>]
4139 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4141 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4142 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4143 worked incorrectly for those cases where range = 10..._2 and
4144 3*range is two bits longer than range.)
4147 *) Only add signing time to PKCS7 structures if it is not already
4151 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4152 OBJ_ld_ce should be OBJ_id_ce.
4153 Also some ip-pda OIDs in crypto/objects/objects.txt were
4154 incorrect (cf. RFC 3039).
4155 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4157 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4158 returns early because it has nothing to do.
4159 [Andy Schneider <andy.schneider@bjss.co.uk>]
4161 *) [In 0.9.6c-engine release:]
4162 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4163 [Andy Schneider <andy.schneider@bjss.co.uk>]
4165 *) [In 0.9.6c-engine release:]
4166 Add support for Cryptographic Appliance's keyserver technology.
4167 (Use engine 'keyclient')
4168 [Cryptographic Appliances and Geoff Thorpe]
4170 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4171 is called via tools/c89.sh because arguments have to be
4172 rearranged (all '-L' options must appear before the first object
4174 [Richard Shapiro <rshapiro@abinitio.com>]
4176 *) [In 0.9.6c-engine release:]
4177 Add support for Broadcom crypto accelerator cards, backported
4179 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4181 *) [In 0.9.6c-engine release:]
4182 Add support for SureWare crypto accelerator cards from
4183 Baltimore Technologies. (Use engine 'sureware')
4184 [Baltimore Technologies and Mark Cox]
4186 *) [In 0.9.6c-engine release:]
4187 Add support for crypto accelerator cards from Accelerated
4188 Encryption Processing, www.aep.ie. (Use engine 'aep')
4189 [AEP Inc. and Mark Cox]
4191 *) Add a configuration entry for gcc on UnixWare.
4192 [Gary Benson <gbenson@redhat.com>]
4194 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4195 messages are stored in a single piece (fixed-length part and
4196 variable-length part combined) and fix various bugs found on the way.
4199 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4200 instead. BIO_gethostbyname() does not know what timeouts are
4201 appropriate, so entries would stay in cache even when they have
4203 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4205 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4206 faced with a pathologically small ClientHello fragment that does
4207 not contain client_version: Instead of aborting with an error,
4208 simply choose the highest available protocol version (i.e.,
4209 TLS 1.0 unless it is disabled). In practice, ClientHello
4210 messages are never sent like this, but this change gives us
4211 strictly correct behaviour at least for TLS.
4214 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4215 never resets s->method to s->ctx->method when called from within
4216 one of the SSL handshake functions.
4217 [Bodo Moeller; problem pointed out by Niko Baric]
4219 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4220 (sent using the client's version number) if client_version is
4221 smaller than the protocol version in use. Also change
4222 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4223 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4224 the client will at least see that alert.
4227 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4231 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4232 client receives HelloRequest while in a handshake.
4233 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4235 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4236 should end in 'break', not 'goto end' which circuments various
4237 cleanups done in state SSL_ST_OK. But session related stuff
4238 must be disabled for SSL_ST_OK in the case that we just sent a
4241 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4242 before just sending a HelloRequest.
4243 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4245 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4246 reveal whether illegal block cipher padding was found or a MAC
4247 verification error occured. (Neither SSLerr() codes nor alerts
4248 are directly visible to potential attackers, but the information
4249 may leak via logfiles.)
4251 Similar changes are not required for the SSL 2.0 implementation
4252 because the number of padding bytes is sent in clear for SSL 2.0,
4253 and the extra bytes are just ignored. However ssl/s2_pkt.c
4254 failed to verify that the purported number of padding bytes is in
4258 *) Add OpenUNIX-8 support including shared libraries
4259 (Boyd Lynn Gerber <gerberb@zenez.com>).
4262 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4263 'wristwatch attack' using huge encoding parameters (cf.
4264 James H. Manger's CRYPTO 2001 paper). Note that the
4265 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4266 encoding parameters and hence was not vulnerable.
4269 *) BN_sqr() bug fix.
4270 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4272 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4273 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4274 followed by modular reduction.
4275 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4277 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4278 equivalent based on BN_pseudo_rand() instead of BN_rand().
4281 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4282 This function was broken, as the check for a new client hello message
4283 to handle SGC did not allow these large messages.
4284 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4287 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4290 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4291 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4294 *) Rework the configuration and shared library support for Tru64 Unix.
4295 The configuration part makes use of modern compiler features and
4296 still retains old compiler behavior for those that run older versions
4297 of the OS. The shared library support part includes a variant that
4298 uses the RPATH feature, and is available through the special
4299 configuration target "alpha-cc-rpath", which will never be selected
4301 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4303 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4304 with the same message size as in ssl3_get_certificate_request().
4305 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4306 messages might inadvertently be reject as too long.
4307 [Petr Lampa <lampa@fee.vutbr.cz>]
4309 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4312 *) Modified SSL library such that the verify_callback that has been set
4313 specificly for an SSL object with SSL_set_verify() is actually being
4314 used. Before the change, a verify_callback set with this function was
4315 ignored and the verify_callback() set in the SSL_CTX at the time of
4316 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4317 to allow the necessary settings.
4320 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4321 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4322 done automatically (in contradiction to the requirements of the C
4323 standard). This made problems when used from OpenSSH.
4326 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4327 dh->length and always used
4329 BN_rand_range(priv_key, dh->p).
4331 BN_rand_range() is not necessary for Diffie-Hellman, and this
4332 specific range makes Diffie-Hellman unnecessarily inefficient if
4333 dh->length (recommended exponent length) is much smaller than the
4334 length of dh->p. We could use BN_rand_range() if the order of
4335 the subgroup was stored in the DH structure, but we only have
4340 BN_rand(priv_key, l, ...)
4342 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4348 RSA_eay_public_encrypt
4349 RSA_eay_private_decrypt
4350 RSA_eay_private_encrypt (signing)
4351 RSA_eay_public_decrypt (signature verification)
4353 (default implementations for RSA_public_encrypt,
4354 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4355 always reject numbers >= n.
4358 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4359 to synchronize access to 'locking_thread'. This is necessary on
4360 systems where access to 'locking_thread' (an 'unsigned long'
4361 variable) is not atomic.
4364 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4365 *before* setting the 'crypto_lock_rand' flag. The previous code had
4366 a race condition if 0 is a valid thread ID.
4367 [Travis Vitek <vitek@roguewave.com>]
4369 *) Add support for shared libraries under Irix.
4370 [Albert Chin-A-Young <china@thewrittenword.com>]
4372 *) Add configuration option to build on Linux on both big-endian and
4374 [Ralf Baechle <ralf@uni-koblenz.de>]
4376 *) Add the possibility to create shared libraries on HP-UX.
4379 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4381 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4382 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4383 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4384 PRNG state recovery was possible based on the output of
4385 one PRNG request appropriately sized to gain knowledge on
4386 'md' followed by enough consecutive 1-byte PRNG requests
4387 to traverse all of 'state'.
4389 1. When updating 'md_local' (the current thread's copy of 'md')
4390 during PRNG output generation, hash all of the previous
4391 'md_local' value, not just the half used for PRNG output.
4393 2. Make the number of bytes from 'state' included into the hash
4394 independent from the number of PRNG bytes requested.
4396 The first measure alone would be sufficient to avoid
4397 Markku-Juhani's attack. (Actually it had never occurred
4398 to me that the half of 'md_local' used for chaining was the
4399 half from which PRNG output bytes were taken -- I had always
4400 assumed that the secret half would be used.) The second
4401 measure makes sure that additional data from 'state' is never
4402 mixed into 'md_local' in small portions; this heuristically
4403 further strengthens the PRNG.
4406 *) Fix crypto/bn/asm/mips3.s.
4409 *) When only the key is given to "enc", the IV is undefined. Print out
4410 an error message in this case.
4413 *) Handle special case when X509_NAME is empty in X509 printing routines.
4416 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4417 positive and less than q.
4420 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4421 used: it isn't thread safe and the add_lock_callback should handle
4423 [Paul Rose <Paul.Rose@bridge.com>]
4425 *) Verify that incoming data obeys the block size in
4426 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4430 [Ulf Möller, Bodo Möller]
4432 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4433 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4434 when fixing the server behaviour for backwards-compatible 'client
4435 hello' messages. (Note that the attack is impractical against
4436 SSL 3.0 and TLS 1.0 anyway because length and version checking
4437 means that the probability of guessing a valid ciphertext is
4438 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4441 Before 0.9.5, the countermeasure (hide the error by generating a
4442 random 'decryption result') did not work properly because
4443 ERR_clear_error() was missing, meaning that SSL_get_error() would
4444 detect the supposedly ignored error.
4446 Both problems are now fixed.
4449 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4450 (previously it was 1024).
4453 *) Fix for compatibility mode trust settings: ignore trust settings
4454 unless some valid trust or reject settings are present.
4457 *) Fix for blowfish EVP: its a variable length cipher.
4460 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4461 parameters in DSA public key structures and return an error in the
4462 DSA routines if parameters are absent.
4465 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4466 in the current directory if neither $RANDFILE nor $HOME was set.
4467 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4468 caused some confusion to Windows users who haven't defined $HOME.
4469 Thus RAND_file_name() is changed again: e_os.h can define a
4470 DEFAULT_HOME, which will be used if $HOME is not set.
4471 For Windows, we use "C:"; on other platforms, we still require
4472 environment variables.
4474 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4475 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4476 having multiple threads call RAND_poll() concurrently.
4479 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4480 combination of a flag and a thread ID variable.
4481 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4482 flag), *other* threads can enter ssleay_add_bytes without obeying
4483 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4484 that they do not hold after the first thread unsets add_do_not_lock).
4487 *) Change bctest again: '-x' expressions are not available in all
4491 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4493 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4494 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4496 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4497 the default extension for executables, if any. Also, make the perl
4498 scripts that use symlink() to test if it really exists and use "cp"
4499 if it doesn't. All this made OpenSSL compilable and installable in
4503 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4504 If SEQUENCE is length is indefinite just set c->slen to the total
4505 amount of data available.
4506 [Steve Henson, reported by shige@FreeBSD.org]
4507 [This change does not apply to 0.9.7.]
4509 *) Change bctest to avoid here-documents inside command substitution
4510 (workaround for FreeBSD /bin/sh bug).
4511 For compatibility with Ultrix, avoid shell functions (introduced
4512 in the bctest version that searches along $PATH).
4515 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4516 with des_encrypt() defined on some operating systems, like Solaris
4520 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4521 On the Importance of Eliminating Errors in Cryptographic
4522 Computations, J. Cryptology 14 (2001) 2, 101-119,
4523 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4526 *) MIPS assembler BIGNUM division bug fix.
4529 *) Disabled incorrect Alpha assembler code.
4532 *) Fix PKCS#7 decode routines so they correctly update the length
4533 after reading an EOC for the EXPLICIT tag.
4535 [This change does not apply to 0.9.7.]
4537 *) Fix bug in PKCS#12 key generation routines. This was triggered
4538 if a 3DES key was generated with a 0 initial byte. Include
4539 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4540 (but broken) behaviour.
4543 *) Enhance bctest to search for a working bc along $PATH and print
4545 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4547 *) Fix memory leaks in err.c: free err_data string if necessary;
4548 don't write to the wrong index in ERR_set_error_data.
4551 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4555 *) Replace rdtsc with _emit statements for VC++ version 5.
4556 [Jeremy Cooper <jeremy@baymoo.org>]
4558 *) Make it possible to reuse SSLv2 sessions.
4561 *) In copy_email() check for >= 0 as a return value for
4562 X509_NAME_get_index_by_NID() since 0 is a valid index.
4563 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4565 *) Avoid coredump with unsupported or invalid public keys by checking if
4566 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4567 PKCS7_verify() fails with non detached data.
4570 *) Don't use getenv in library functions when run as setuid/setgid.
4571 New function OPENSSL_issetugid().
4574 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4575 due to incorrect handling of multi-threading:
4577 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4579 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4581 3. Count how many times MemCheck_off() has been called so that
4582 nested use can be treated correctly. This also avoids
4583 inband-signalling in the previous code (which relied on the
4584 assumption that thread ID 0 is impossible).
4587 *) Add "-rand" option also to s_client and s_server.
4590 *) Fix CPU detection on Irix 6.x.
4591 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4592 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4594 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4597 [This change does not apply to 0.9.7.]
4599 *) Use the cached encoding of an X509_NAME structure rather than
4600 copying it. This is apparently the reason for the libsafe "errors"
4601 but the code is actually correct.
4604 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4605 Bleichenbacher's DSA attack.
4606 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4607 to be set and top=0 forces the highest bit to be set; top=-1 is new
4608 and leaves the highest bit random.
4609 [Ulf Moeller, Bodo Moeller]
4611 *) In the NCONF_...-based implementations for CONF_... queries
4612 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4613 a temporary CONF structure with the data component set to NULL
4614 (which gives segmentation faults in lh_retrieve).
4615 Instead, use NULL for the CONF pointer in CONF_get_string and
4616 CONF_get_number (which may use environment variables) and directly
4617 return NULL from CONF_get_section.
4620 *) Fix potential buffer overrun for EBCDIC.
4623 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4624 keyUsage if basicConstraints absent for a CA.
4627 *) Make SMIME_write_PKCS7() write mail header values with a format that
4628 is more generally accepted (no spaces before the semicolon), since
4629 some programs can't parse those values properly otherwise. Also make
4630 sure BIO's that break lines after each write do not create invalid
4634 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4635 macros previously used would not encode an empty SEQUENCE OF
4636 and break the signature.
4638 [This change does not apply to 0.9.7.]
4640 *) Zero the premaster secret after deriving the master secret in
4644 *) Add some EVP_add_digest_alias registrations (as found in
4645 OpenSSL_add_all_digests()) to SSL_library_init()
4646 aka OpenSSL_add_ssl_algorithms(). This provides improved
4647 compatibility with peers using X.509 certificates
4648 with unconventional AlgorithmIdentifier OIDs.
4651 *) Fix for Irix with NO_ASM.
4652 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4654 *) ./config script fixes.
4655 [Ulf Moeller, Richard Levitte]
4657 *) Fix 'openssl passwd -1'.
4660 *) Change PKCS12_key_gen_asc() so it can cope with non null
4661 terminated strings whose length is passed in the passlen
4662 parameter, for example from PEM callbacks. This was done
4663 by adding an extra length parameter to asc2uni().
4664 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4666 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4667 call failed, free the DSA structure.
4670 *) Fix to uni2asc() to cope with zero length Unicode strings.
4671 These are present in some PKCS#12 files.
4674 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4675 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4676 when writing a 32767 byte record.
4677 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4679 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4680 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4682 (RSA objects have a reference count access to which is protected
4683 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4684 so they are meant to be shared between threads.)
4685 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4686 "Reddie, Steven" <Steven.Reddie@ca.com>]
4688 *) Fix a deadlock in CRYPTO_mem_leaks().
4691 *) Use better test patterns in bntest.
4694 *) rand_win.c fix for Borland C.
4697 *) BN_rshift bugfix for n == 0.
4700 *) Add a 'bctest' script that checks for some known 'bc' bugs
4701 so that 'make test' does not abort just because 'bc' is broken.
4704 *) Store verify_result within SSL_SESSION also for client side to
4705 avoid potential security hole. (Re-used sessions on the client side
4706 always resulted in verify_result==X509_V_OK, not using the original
4707 result of the server certificate verification.)
4710 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4711 SSL3_RT_APPLICATION_DATA, return 0.
4712 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4716 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4717 releases, have been re-implemented by renaming the previous
4718 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4719 and ssl3_read_internal, respectively, and adding 'peek' parameters
4720 to them. The new ssl[23]_{read,peek} functions are calls to
4721 ssl[23]_read_internal with the 'peek' flag set appropriately.
4722 A 'peek' parameter has also been added to ssl3_read_bytes, which
4723 does the actual work for ssl3_read_internal.
4726 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4727 the method-specific "init()" handler. Also clean up ex_data after
4728 calling the method-specific "finish()" handler. Previously, this was
4729 happening the other way round.
4732 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4733 The previous value, 12, was not always sufficient for BN_mod_exp().
4736 *) Make sure that shared libraries get the internal name engine with
4737 the full version number and not just 0. This should mark the
4738 shared libraries as not backward compatible. Of course, this should
4739 be changed again when we can guarantee backward binary compatibility.
4742 *) Fix typo in get_cert_by_subject() in by_dir.c
4743 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4745 *) Rework the system to generate shared libraries:
4747 - Make note of the expected extension for the shared libraries and
4748 if there is a need for symbolic links from for example libcrypto.so.0
4749 to libcrypto.so.0.9.7. There is extended info in Configure for
4752 - Make as few rebuilds of the shared libraries as possible.
4754 - Still avoid linking the OpenSSL programs with the shared libraries.
4756 - When installing, install the shared libraries separately from the
4760 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4762 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4763 and not in SSL_clear because the latter is also used by the
4764 accept/connect functions; previously, the settings made by
4765 SSL_set_read_ahead would be lost during the handshake.
4766 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4768 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4769 Previously, it would create entries for disableed algorithms no
4773 *) Added several new manual pages for SSL_* function.
4776 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4778 *) In ssl23_get_client_hello, generate an error message when faced
4779 with an initial SSL 3.0/TLS record that is too small to contain the
4780 first two bytes of the ClientHello message, i.e. client_version.
4781 (Note that this is a pathologic case that probably has never happened
4782 in real life.) The previous approach was to use the version number
4783 from the record header as a substitute; but our protocol choice
4784 should not depend on that one because it is not authenticated
4785 by the Finished messages.
4788 *) More robust randomness gathering functions for Windows.
4789 [Jeffrey Altman <jaltman@columbia.edu>]
4791 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4792 not set then we don't setup the error code for issuer check errors
4793 to avoid possibly overwriting other errors which the callback does
4794 handle. If an application does set the flag then we assume it knows
4795 what it is doing and can handle the new informational codes
4799 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4800 a general "ANY" type, as such it should be able to decode anything
4801 including tagged types. However it didn't check the class so it would
4802 wrongly interpret tagged types in the same way as their universal
4803 counterpart and unknown types were just rejected. Changed so that the
4804 tagged and unknown types are handled in the same way as a SEQUENCE:
4805 that is the encoding is stored intact. There is also a new type
4806 "V_ASN1_OTHER" which is used when the class is not universal, in this
4807 case we have no idea what the actual type is so we just lump them all
4811 *) On VMS, stdout may very well lead to a file that is written to
4812 in a record-oriented fashion. That means that every write() will
4813 write a separate record, which will be read separately by the
4814 programs trying to read from it. This can be very confusing.
4816 The solution is to put a BIO filter in the way that will buffer
4817 text until a linefeed is reached, and then write everything a
4818 line at a time, so every record written will be an actual line,
4819 not chunks of lines and not (usually doesn't happen, but I've
4820 seen it once) several lines in one record. BIO_f_linebuffer() is
4823 Currently, it's a VMS-only method, because that's where it has
4824 been tested well enough.
4827 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4828 it can return incorrect results.
4829 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4830 but it was in 0.9.6-beta[12].)
4833 *) Disable the check for content being present when verifying detached
4834 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4835 include zero length content when signing messages.
4838 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4839 BIO_ctrl (for BIO pairs).
4842 *) Add DSO method for VMS.
4845 *) Bug fix: Montgomery multiplication could produce results with the
4849 *) Add RPM specification openssl.spec and modify it to build three
4850 packages. The default package contains applications, application
4851 documentation and run-time libraries. The devel package contains
4852 include files, static libraries and function documentation. The
4853 doc package contains the contents of the doc directory. The original
4854 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4857 *) Add a large number of documentation files for many SSL routines.
4858 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4860 *) Add a configuration entry for Sony News 4.
4861 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4863 *) Don't set the two most significant bits to one when generating a
4864 random number < q in the DSA library.
4867 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4868 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4869 the underlying transport is blocking) if a handshake took place.
4870 (The default behaviour is needed by applications such as s_client
4871 and s_server that use select() to determine when to use SSL_read;
4872 but for applications that know in advance when to expect data, it
4873 just makes things more complicated.)
4876 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4880 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4881 work better on such systems.
4882 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4884 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4885 Update PKCS12_parse() so it copies the friendlyName and the
4886 keyid to the certificates aux info.
4889 *) Fix bug in PKCS7_verify() which caused an infinite loop
4890 if there was more than one signature.
4891 [Sven Uszpelkat <su@celocom.de>]
4893 *) Major change in util/mkdef.pl to include extra information
4894 about each symbol, as well as presentig variables as well
4895 as functions. This change means that there's n more need
4896 to rebuild the .num files when some algorithms are excluded.
4899 *) Allow the verify time to be set by an application,
4900 rather than always using the current time.
4903 *) Phase 2 verify code reorganisation. The certificate
4904 verify code now looks up an issuer certificate by a
4905 number of criteria: subject name, authority key id
4906 and key usage. It also verifies self signed certificates
4907 by the same criteria. The main comparison function is
4908 X509_check_issued() which performs these checks.
4910 Lot of changes were necessary in order to support this
4911 without completely rewriting the lookup code.
4913 Authority and subject key identifier are now cached.
4915 The LHASH 'certs' is X509_STORE has now been replaced
4916 by a STACK_OF(X509_OBJECT). This is mainly because an
4917 LHASH can't store or retrieve multiple objects with
4918 the same hash value.
4920 As a result various functions (which were all internal
4921 use only) have changed to handle the new X509_STORE
4922 structure. This will break anything that messed round
4923 with X509_STORE internally.
4925 The functions X509_STORE_add_cert() now checks for an
4926 exact match, rather than just subject name.
4928 The X509_STORE API doesn't directly support the retrieval
4929 of multiple certificates matching a given criteria, however
4930 this can be worked round by performing a lookup first
4931 (which will fill the cache with candidate certificates)
4932 and then examining the cache for matches. This is probably
4933 the best we can do without throwing out X509_LOOKUP
4934 entirely (maybe later...).
4936 The X509_VERIFY_CTX structure has been enhanced considerably.
4938 All certificate lookup operations now go via a get_issuer()
4939 callback. Although this currently uses an X509_STORE it
4940 can be replaced by custom lookups. This is a simple way
4941 to bypass the X509_STORE hackery necessary to make this
4942 work and makes it possible to use more efficient techniques
4943 in future. A very simple version which uses a simple
4944 STACK for its trusted certificate store is also provided
4945 using X509_STORE_CTX_trusted_stack().
4947 The verify_cb() and verify() callbacks now have equivalents
4948 in the X509_STORE_CTX structure.
4950 X509_STORE_CTX also has a 'flags' field which can be used
4951 to customise the verify behaviour.
4954 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4955 excludes S/MIME capabilities.
4958 *) When a certificate request is read in keep a copy of the
4959 original encoding of the signed data and use it when outputing
4960 again. Signatures then use the original encoding rather than
4961 a decoded, encoded version which may cause problems if the
4962 request is improperly encoded.
4965 *) For consistency with other BIO_puts implementations, call
4966 buffer_write(b, ...) directly in buffer_puts instead of calling
4969 In BIO_puts, increment b->num_write as in BIO_write.
4970 [Peter.Sylvester@EdelWeb.fr]
4972 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4973 BN_zero, we may not return a BIGNUM with an array consisting of
4977 *) Avoid calling abort() from within the library when problems are
4978 detected, except if preprocessor symbols have been defined
4979 (such as REF_CHECK, BN_DEBUG etc.).
4982 *) New openssl application 'rsautl'. This utility can be
4983 used for low level RSA operations. DER public key
4984 BIO/fp routines also added.
4987 *) New Configure entry and patches for compiling on QNX 4.
4988 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4990 *) A demo state-machine implementation was sponsored by
4991 Nuron (http://www.nuron.com/) and is now available in
4992 demos/state_machine.
4995 *) New options added to the 'dgst' utility for signature
4996 generation and verification.
4999 *) Unrecognized PKCS#7 content types are now handled via a
5000 catch all ASN1_TYPE structure. This allows unsupported
5001 types to be stored as a "blob" and an application can
5002 encode and decode it manually.
5005 *) Fix various signed/unsigned issues to make a_strex.c
5007 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5009 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5010 length if passed a buffer. ASN1_INTEGER_to_BN failed
5011 if passed a NULL BN and its argument was negative.
5012 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5014 *) Modification to PKCS#7 encoding routines to output definite
5015 length encoding. Since currently the whole structures are in
5016 memory there's not real point in using indefinite length
5017 constructed encoding. However if OpenSSL is compiled with
5018 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5021 *) Added BIO_vprintf() and BIO_vsnprintf().
5024 *) Added more prefixes to parse for in the the strings written
5025 through a logging bio, to cover all the levels that are available
5026 through syslog. The prefixes are now:
5028 PANIC, EMERG, EMR => LOG_EMERG
5029 ALERT, ALR => LOG_ALERT
5030 CRIT, CRI => LOG_CRIT
5031 ERROR, ERR => LOG_ERR
5032 WARNING, WARN, WAR => LOG_WARNING
5033 NOTICE, NOTE, NOT => LOG_NOTICE
5034 INFO, INF => LOG_INFO
5035 DEBUG, DBG => LOG_DEBUG
5037 and as before, if none of those prefixes are present at the
5038 beginning of the string, LOG_ERR is chosen.
5040 On Win32, the LOG_* levels are mapped according to this:
5042 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5043 LOG_WARNING => EVENTLOG_WARNING_TYPE
5044 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5048 *) Made it possible to reconfigure with just the configuration
5049 argument "reconf" or "reconfigure". The command line arguments
5050 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5051 and are retrieved from there when reconfiguring.
5055 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5057 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5060 *) The obj_dat.pl script was messing up the sorting of object
5061 names. The reason was that it compared the quoted version
5062 of strings as a result "OCSP" > "OCSP Signing" because
5063 " > SPACE. Changed script to store unquoted versions of
5064 names and add quotes on output. It was also omitting some
5065 names from the lookup table if they were given a default
5066 value (that is if SN is missing it is given the same
5067 value as LN and vice versa), these are now added on the
5068 grounds that if an object has a name we should be able to
5069 look it up. Finally added warning output when duplicate
5070 short or long names are found.
5073 *) Changes needed for Tandem NSK.
5074 [Scott Uroff <scott@xypro.com>]
5076 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5077 RSA_padding_check_SSLv23(), special padding was never detected
5078 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5079 version rollback attacks was not effective.
5081 In s23_clnt.c, don't use special rollback-attack detection padding
5082 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5083 client; similarly, in s23_srvr.c, don't do the rollback check if
5084 SSL 2.0 is the only protocol enabled in the server.
5087 *) Make it possible to get hexdumps of unprintable data with 'openssl
5088 asn1parse'. By implication, the functions ASN1_parse_dump() and
5089 BIO_dump_indent() are added.
5092 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5093 these print out strings and name structures based on various
5094 flags including RFC2253 support and proper handling of
5095 multibyte characters. Added options to the 'x509' utility
5096 to allow the various flags to be set.
5099 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5100 Also change the functions X509_cmp_current_time() and
5101 X509_gmtime_adj() work with an ASN1_TIME structure,
5102 this will enable certificates using GeneralizedTime in validity
5103 dates to be checked.
5106 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5107 negative public key encodings) on by default,
5108 NO_NEG_PUBKEY_BUG can be set to disable it.
5111 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5112 content octets. An i2c_ASN1_OBJECT is unnecessary because
5113 the encoding can be trivially obtained from the structure.
5116 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5117 not read locks (CRYPTO_r_[un]lock).
5120 *) A first attempt at creating official support for shared
5121 libraries through configuration. I've kept it so the
5122 default is static libraries only, and the OpenSSL programs
5123 are always statically linked for now, but there are
5124 preparations for dynamic linking in place.
5125 This has been tested on Linux and Tru64.
5128 *) Randomness polling function for Win9x, as described in:
5129 Peter Gutmann, Software Generation of Practically Strong
5133 *) Fix so PRNG is seeded in req if using an already existing
5137 *) New options to smime application. -inform and -outform
5138 allow alternative formats for the S/MIME message including
5139 PEM and DER. The -content option allows the content to be
5140 specified separately. This should allow things like Netscape
5141 form signing output easier to verify.
5144 *) Fix the ASN1 encoding of tags using the 'long form'.
5147 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5148 STRING types. These convert content octets to and from the
5149 underlying type. The actual tag and length octets are
5150 already assumed to have been read in and checked. These
5151 are needed because all other string types have virtually
5152 identical handling apart from the tag. By having versions
5153 of the ASN1 functions that just operate on content octets
5154 IMPLICIT tagging can be handled properly. It also allows
5155 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5156 and ASN1_INTEGER are identical apart from the tag.
5159 *) Change the handling of OID objects as follows:
5161 - New object identifiers are inserted in objects.txt, following
5162 the syntax given in objects.README.
5163 - objects.pl is used to process obj_mac.num and create a new
5165 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5168 This is currently kind of a hack, and the perl code in objects.pl
5169 isn't very elegant, but it works as I intended. The simplest way
5170 to check that it worked correctly is to look in obj_dat.h and
5171 check the array nid_objs and make sure the objects haven't moved
5172 around (this is important!). Additions are OK, as well as
5173 consistent name changes.
5176 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5179 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5180 The given file adds to whatever has already been seeded into the
5181 random pool through the RANDFILE configuration file option or
5182 environment variable, or the default random state file.
5185 *) mkstack.pl now sorts each macro group into lexical order.
5186 Previously the output order depended on the order the files
5187 appeared in the directory, resulting in needless rewriting
5191 *) Patches to make OpenSSL compile under Win32 again. Mostly
5192 work arounds for the VC++ problem that it treats func() as
5193 func(void). Also stripped out the parts of mkdef.pl that
5194 added extra typesafe functions: these no longer exist.
5197 *) Reorganisation of the stack code. The macros are now all
5198 collected in safestack.h . Each macro is defined in terms of
5199 a "stack macro" of the form SKM_<name>(type, a, b). The
5200 DEBUG_SAFESTACK is now handled in terms of function casts,
5201 this has the advantage of retaining type safety without the
5202 use of additional functions. If DEBUG_SAFESTACK is not defined
5203 then the non typesafe macros are used instead. Also modified the
5204 mkstack.pl script to handle the new form. Needs testing to see
5205 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5206 the default if no major problems. Similar behaviour for ASN1_SET_OF
5207 and PKCS12_STACK_OF.
5210 *) When some versions of IIS use the 'NET' form of private key the
5211 key derivation algorithm is different. Normally MD5(password) is
5212 used as a 128 bit RC4 key. In the modified case
5213 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5214 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5215 as the old Netscape_RSA functions except they have an additional
5216 'sgckey' parameter which uses the modified algorithm. Also added
5217 an -sgckey command line option to the rsa utility. Thanks to
5218 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5219 algorithm to openssl-dev.
5222 *) The evp_local.h macros were using 'c.##kname' which resulted in
5223 invalid expansion on some systems (SCO 5.0.5 for example).
5224 Corrected to 'c.kname'.
5225 [Phillip Porch <root@theporch.com>]
5227 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5228 a STACK of email addresses from a certificate or request, these look
5229 in the subject name and the subject alternative name extensions and
5230 omit any duplicate addresses.
5233 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5234 This makes DSA verification about 2 % faster.
5237 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5238 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5239 plus overhead for 1024 bit moduli).
5240 This makes exponentiations about 0.5 % faster for 1024 bit
5241 exponents (as measured by "openssl speed rsa2048").
5244 *) Rename memory handling macros to avoid conflicts with other
5246 Malloc => OPENSSL_malloc
5247 Malloc_locked => OPENSSL_malloc_locked
5248 Realloc => OPENSSL_realloc
5249 Free => OPENSSL_free
5252 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5253 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5256 *) CygWin32 support.
5257 [John Jarvie <jjarvie@newsguy.com>]
5259 *) The type-safe stack code has been rejigged. It is now only compiled
5260 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5261 by default all type-specific stack functions are "#define"d back to
5262 standard stack functions. This results in more streamlined output
5263 but retains the type-safety checking possibilities of the original
5267 *) The STACK code has been cleaned up, and certain type declarations
5268 that didn't make a lot of sense have been brought in line. This has
5269 also involved a cleanup of sorts in safestack.h to more correctly
5270 map type-safe stack functions onto their plain stack counterparts.
5271 This work has also resulted in a variety of "const"ifications of
5272 lots of the code, especially "_cmp" operations which should normally
5273 be prototyped with "const" parameters anyway.
5276 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5277 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5278 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5279 where all of 'md' is used each time the PRNG is used, but 'state'
5280 is used only indexed by a cyclic counter. As entropy may not be
5281 well distributed from the beginning, 'md' is important as a
5282 chaining variable. However, the output function chains only half
5283 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5284 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5285 in all of 'state' being rewritten, with the new values depending
5286 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5289 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5290 the handshake is continued after ssl_verify_cert_chain();
5291 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5292 can lead to 'unexplainable' connection aborts later.
5293 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5295 *) Major EVP API cipher revision.
5296 Add hooks for extra EVP features. This allows various cipher
5297 parameters to be set in the EVP interface. Support added for variable
5298 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5299 setting of RC2 and RC5 parameters.
5301 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5304 Remove lots of duplicated code from the EVP library. For example *every*
5305 cipher init() function handles the 'iv' in the same way according to the
5306 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5307 for CFB and OFB modes they zero ctx->num.
5309 New functionality allows removal of S/MIME code RC2 hack.
5311 Most of the routines have the same form and so can be declared in terms
5314 By shifting this to the top level EVP_CipherInit() it can be removed from
5315 all individual ciphers. If the cipher wants to handle IVs or keys
5316 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5319 Change lots of functions like EVP_EncryptUpdate() to now return a
5320 value: although software versions of the algorithms cannot fail
5321 any installed hardware versions can.
5324 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5325 this option is set, tolerate broken clients that send the negotiated
5326 protocol version number instead of the requested protocol version
5330 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5331 i.e. non-zero for export ciphersuites, zero otherwise.
5332 Previous versions had this flag inverted, inconsistent with
5333 rsa_tmp_cb (..._TMP_RSA_CB).
5334 [Bodo Moeller; problem reported by Amit Chopra]
5336 *) Add missing DSA library text string. Work around for some IIS
5337 key files with invalid SEQUENCE encoding.
5340 *) Add a document (doc/standards.txt) that list all kinds of standards
5341 and so on that are implemented in OpenSSL.
5344 *) Enhance c_rehash script. Old version would mishandle certificates
5345 with the same subject name hash and wouldn't handle CRLs at all.
5346 Added -fingerprint option to crl utility, to support new c_rehash
5350 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5353 *) Fix for SSL server purpose checking. Server checking was
5354 rejecting certificates which had extended key usage present
5355 but no ssl client purpose.
5356 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5358 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5359 is a little unclear about how a blank password is handled.
5360 Since the password in encoded as a BMPString with terminating
5361 double NULL a zero length password would end up as just the
5362 double NULL. However no password at all is different and is
5363 handled differently in the PKCS#12 key generation code. NS
5364 treats a blank password as zero length. MSIE treats it as no
5365 password on export: but it will try both on import. We now do
5366 the same: PKCS12_parse() tries zero length and no password if
5367 the password is set to "" or NULL (NULL is now a valid password:
5368 it wasn't before) as does the pkcs12 application.
5371 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5372 perror when PEM_read_bio_X509_REQ fails, the error message must
5373 be obtained from the error queue.
5376 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5377 it in ERR_remove_state if appropriate, and change ERR_get_state
5378 accordingly to avoid race conditions (this is necessary because
5379 thread_hash is no longer constant once set).
5382 *) Bugfix for linux-elf makefile.one.
5385 *) RSA_get_default_method() will now cause a default
5386 RSA_METHOD to be chosen if one doesn't exist already.
5387 Previously this was only set during a call to RSA_new()
5388 or RSA_new_method(NULL) meaning it was possible for
5389 RSA_get_default_method() to return NULL.
5392 *) Added native name translation to the existing DSO code
5393 that will convert (if the flag to do so is set) filenames
5394 that are sufficiently small and have no path information
5395 into a canonical native form. Eg. "blah" converted to
5396 "libblah.so" or "blah.dll" etc.
5399 *) New function ERR_error_string_n(e, buf, len) which is like
5400 ERR_error_string(e, buf), but writes at most 'len' bytes
5401 including the 0 terminator. For ERR_error_string_n, 'buf'
5403 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5405 *) CONF library reworked to become more general. A new CONF
5406 configuration file reader "class" is implemented as well as a
5407 new functions (NCONF_*, for "New CONF") to handle it. The now
5408 old CONF_* functions are still there, but are reimplemented to
5409 work in terms of the new functions. Also, a set of functions
5410 to handle the internal storage of the configuration data is
5411 provided to make it easier to write new configuration file
5412 reader "classes" (I can definitely see something reading a
5413 configuration file in XML format, for example), called _CONF_*,
5414 or "the configuration storage API"...
5416 The new configuration file reading functions are:
5418 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5419 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5421 NCONF_default, NCONF_WIN32
5423 NCONF_dump_fp, NCONF_dump_bio
5425 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5426 NCONF_new creates a new CONF object. This works in the same way
5427 as other interfaces in OpenSSL, like the BIO interface.
5428 NCONF_dump_* dump the internal storage of the configuration file,
5429 which is useful for debugging. All other functions take the same
5430 arguments as the old CONF_* functions wth the exception of the
5431 first that must be a `CONF *' instead of a `LHASH *'.
5433 To make it easer to use the new classes with the old CONF_* functions,
5434 the function CONF_set_default_method is provided.
5437 *) Add '-tls1' option to 'openssl ciphers', which was already
5438 mentioned in the documentation but had not been implemented.
5439 (This option is not yet really useful because even the additional
5440 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5443 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5444 OpenSSL-based applications) load shared libraries and bind to
5445 them in a portable way.
5446 [Geoff Thorpe, with contributions from Richard Levitte]
5448 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5450 *) Make sure _lrotl and _lrotr are only used with MSVC.
5452 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5453 (the default implementation of RAND_status).
5455 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5456 to '-clrext' (= clear extensions), as intended and documented.
5457 [Bodo Moeller; inconsistency pointed out by Michael Attili
5460 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5461 was larger than the MD block size.
5462 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5464 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5465 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5466 using the passed key: if the passed key was a private key the result
5467 of X509_print(), for example, would be to print out all the private key
5471 *) des_quad_cksum() byte order bug fix.
5472 [Ulf Möller, using the problem description in krb4-0.9.7, where
5473 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5475 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5477 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5479 *) For easily testing in shell scripts whether some command
5480 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5481 returns with exit code 0 iff no command of the given name is available.
5482 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5483 the output goes to stdout and nothing is printed to stderr.
5484 Additional arguments are always ignored.
5486 Since for each cipher there is a command of the same name,
5487 the 'no-cipher' compilation switches can be tested this way.
5489 ('openssl no-XXX' is not able to detect pseudo-commands such
5490 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5493 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5496 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5497 is set; it will be thrown away anyway because each handshake creates
5499 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5500 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5501 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5502 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5505 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5506 'Q' and 'R' lose their special meanings (quit/renegotiate).
5507 This is part of what -quiet does; unlike -quiet, -ign_eof
5508 does not suppress any output.
5511 *) Add compatibility options to the purpose and trust code. The
5512 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5513 accepts a certificate or CA, this was the previous behaviour,
5514 with all the associated security issues.
5516 X509_TRUST_COMPAT is the old trust behaviour: only and
5517 automatically trust self signed roots in certificate store. A
5518 new trust setting X509_TRUST_DEFAULT is used to specify that
5519 a purpose has no associated trust setting and it should instead
5520 use the value in the default purpose.
5523 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5524 and fix a memory leak.
5527 *) In util/mkerr.pl (which implements 'make errors'), preserve
5528 reason strings from the previous version of the .c file, as
5529 the default to have only downcase letters (and digits) in
5530 automatically generated reasons codes is not always appropriate.
5533 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5534 using strerror. Previously, ERR_reason_error_string() returned
5535 library names as reason strings for SYSerr; but SYSerr is a special
5536 case where small numbers are errno values, not library numbers.
5539 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5540 converts DSA parameters into DH parameters. (When creating parameters,
5541 DSA_generate_parameters is used.)
5544 *) Include 'length' (recommended exponent length) in C code generated
5545 by 'openssl dhparam -C'.
5548 *) The second argument to set_label in perlasm was already being used
5549 so couldn't be used as a "file scope" flag. Moved to third argument
5553 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5554 instead of RAND_bytes for encryption IVs and salts.
5557 *) Include RAND_status() into RAND_METHOD instead of implementing
5558 it only for md_rand.c Otherwise replacing the PRNG by calling
5559 RAND_set_rand_method would be impossible.
5562 *) Don't let DSA_generate_key() enter an infinite loop if the random
5563 number generation fails.
5566 *) New 'rand' application for creating pseudo-random output.
5569 *) Added configuration support for Linux/IA64
5570 [Rolf Haberrecker <rolf@suse.de>]
5572 *) Assembler module support for Mingw32.
5575 *) Shared library support for HPUX (in shlib/).
5576 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5578 *) Shared library support for Solaris gcc.
5579 [Lutz Behnke <behnke@trustcenter.de>]
5581 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5583 *) PKCS7_encrypt() was adding text MIME headers twice because they
5584 were added manually and by SMIME_crlf_copy().
5587 *) In bntest.c don't call BN_rand with zero bits argument.
5588 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5590 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5591 case was implemented. This caused BN_div_recp() to fail occasionally.
5594 *) Add an optional second argument to the set_label() in the perl
5595 assembly language builder. If this argument exists and is set
5596 to 1 it signals that the assembler should use a symbol whose
5597 scope is the entire file, not just the current function. This
5598 is needed with MASM which uses the format label:: for this scope.
5599 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5601 *) Change the ASN1 types so they are typedefs by default. Before
5602 almost all types were #define'd to ASN1_STRING which was causing
5603 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5607 *) Change names of new functions to the new get1/get0 naming
5608 convention: After 'get1', the caller owns a reference count
5609 and has to call ..._free; 'get0' returns a pointer to some
5610 data structure without incrementing reference counters.
5611 (Some of the existing 'get' functions increment a reference
5612 counter, some don't.)
5613 Similarly, 'set1' and 'add1' functions increase reference
5614 counters or duplicate objects.
5617 *) Allow for the possibility of temp RSA key generation failure:
5618 the code used to assume it always worked and crashed on failure.
5621 *) Fix potential buffer overrun problem in BIO_printf().
5622 [Ulf Möller, using public domain code by Patrick Powell; problem
5623 pointed out by David Sacerdote <das33@cornell.edu>]
5625 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5626 RAND_egd() and RAND_status(). In the command line application,
5627 the EGD socket can be specified like a seed file using RANDFILE
5631 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5632 Some CAs (e.g. Verisign) distribute certificates in this form.
5635 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5636 list to exclude them. This means that no special compilation option
5637 is needed to use anonymous DH: it just needs to be included in the
5641 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5642 EVP_MD_type. The old functionality is available in a new macro called
5643 EVP_MD_md(). Change code that uses it and update docs.
5646 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5647 where the 'void *' argument is replaced by a function pointer argument.
5648 Previously 'void *' was abused to point to functions, which works on
5649 many platforms, but is not correct. As these functions are usually
5650 called by macros defined in OpenSSL header files, most source code
5651 should work without changes.
5654 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5655 sections with information on -D... compiler switches used for
5656 compiling the library so that applications can see them. To enable
5657 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5658 must be defined. E.g.,
5659 #define OPENSSL_ALGORITHM_DEFINES
5660 #include <openssl/opensslconf.h>
5661 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5662 [Richard Levitte, Ulf and Bodo Möller]
5664 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5668 *) Change the 'other' type in certificate aux info to a STACK_OF
5669 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5670 the required ASN1 format: arbitrary types determined by an OID.
5673 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5674 argument to 'req'. This is not because the function is newer or
5675 better than others it just uses the work 'NEW' in the certificate
5676 request header lines. Some software needs this.
5679 *) Reorganise password command line arguments: now passwords can be
5680 obtained from various sources. Delete the PEM_cb function and make
5681 it the default behaviour: i.e. if the callback is NULL and the
5682 usrdata argument is not NULL interpret it as a null terminated pass
5683 phrase. If usrdata and the callback are NULL then the pass phrase
5684 is prompted for as usual.
5687 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5688 the support is automatically enabled. The resulting binaries will
5689 autodetect the card and use it if present.
5690 [Ben Laurie and Compaq Inc.]
5692 *) Work around for Netscape hang bug. This sends certificate request
5693 and server done in one record. Since this is perfectly legal in the
5694 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5695 the bugs/SSLv3 entry for more info.
5698 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5701 *) Add -rand argument to smime and pkcs12 applications and read/write
5705 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5708 *) Add command line password options to the remaining applications.
5711 *) Bug fix for BN_div_recp() for numerators with an even number of
5715 *) More tests in bntest.c, and changed test_bn output.
5718 *) ./config recognizes MacOS X now.
5721 *) Bug fix for BN_div() when the first words of num and divsor are
5722 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5725 *) Add support for various broken PKCS#8 formats, and command line
5726 options to produce them.
5729 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5730 get temporary BIGNUMs from a BN_CTX.
5733 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5737 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5738 include a #define from the old name to the new. The original intent
5739 was that statically linked binaries could for example just call
5740 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5741 link with digests. This never worked becayse SSLeay_add_all_digests()
5742 and SSLeay_add_all_ciphers() were in the same source file so calling
5743 one would link with the other. They are now in separate source files.
5746 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5749 *) Use a less unusual form of the Miller-Rabin primality test (it used
5750 a binary algorithm for exponentiation integrated into the Miller-Rabin
5751 loop, our standard modexp algorithms are faster).
5754 *) Support for the EBCDIC character set completed.
5755 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5757 *) Source code cleanups: use const where appropriate, eliminate casts,
5758 use void * instead of char * in lhash.
5761 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5762 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5763 this the server could overwrite ephemeral keys that the client
5767 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5768 using 50 iterations of the Rabin-Miller test.
5770 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5771 iterations of the Rabin-Miller test as required by the appendix
5772 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5773 As BN_is_prime_fasttest includes trial division, DSA parameter
5774 generation becomes much faster.
5776 This implies a change for the callback functions in DSA_is_prime
5777 and DSA_generate_parameters: The callback function is called once
5778 for each positive witness in the Rabin-Miller test, not just
5779 occasionally in the inner loop; and the parameters to the
5780 callback function now provide an iteration count for the outer
5781 loop rather than for the current invocation of the inner loop.
5782 DSA_generate_parameters additionally can call the callback
5783 function with an 'iteration count' of -1, meaning that a
5784 candidate has passed the trial division test (when q is generated
5785 from an application-provided seed, trial division is skipped).
5788 *) New function BN_is_prime_fasttest that optionally does trial
5789 division before starting the Rabin-Miller test and has
5790 an additional BN_CTX * argument (whereas BN_is_prime always
5791 has to allocate at least one BN_CTX).
5792 'callback(1, -1, cb_arg)' is called when a number has passed the
5793 trial division stage.
5796 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5800 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5803 *) New function BN_pseudo_rand().
5806 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5807 bignum version of BN_from_montgomery() with the working code from
5808 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5812 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5813 made it impossible to use the same SSL_SESSION data structure in
5814 SSL2 clients in multiple threads.
5817 *) The return value of RAND_load_file() no longer counts bytes obtained
5818 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5819 to seed the PRNG (previously an explicit byte count was required).
5820 [Ulf Möller, Bodo Möller]
5822 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5823 used (char *) instead of (void *) and had casts all over the place.
5826 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5829 *) Retain source code compatibility for BN_prime_checks macro:
5830 BN_is_prime(..., BN_prime_checks, ...) now uses
5831 BN_prime_checks_for_size to determine the appropriate number of
5832 Rabin-Miller iterations.
5835 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5836 DH_CHECK_P_NOT_SAFE_PRIME.
5837 (Check if this is true? OpenPGP calls them "strong".)
5840 *) Merge the functionality of "dh" and "gendh" programs into a new program
5841 "dhparam". The old programs are retained for now but will handle DH keys
5842 (instead of parameters) in future.
5845 *) Make the ciphers, s_server and s_client programs check the return values
5846 when a new cipher list is set.
5849 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5850 ciphers. Before when the 56bit ciphers were enabled the sorting was
5853 The syntax for the cipher sorting has been extended to support sorting by
5854 cipher-strength (using the strength_bits hard coded in the tables).
5855 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5857 Fix a bug in the cipher-command parser: when supplying a cipher command
5858 string with an "undefined" symbol (neither command nor alphanumeric
5859 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5860 an error is flagged.
5862 Due to the strength-sorting extension, the code of the
5863 ssl_create_cipher_list() function was completely rearranged. I hope that
5864 the readability was also increased :-)
5865 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5867 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5868 for the first serial number and places 2 in the serial number file. This
5869 avoids problems when the root CA is created with serial number zero and
5870 the first user certificate has the same issuer name and serial number
5874 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5875 the new code. Add documentation for this stuff.
5878 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5879 X509_*() to X509at_*() on the grounds that they don't handle X509
5880 structures and behave in an analagous way to the X509v3 functions:
5881 they shouldn't be called directly but wrapper functions should be used
5884 So we also now have some wrapper functions that call the X509at functions
5885 when passed certificate requests. (TO DO: similar things can be done with
5886 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5887 things. Some of these need some d2i or i2d and print functionality
5888 because they handle more complex structures.)
5891 *) Add missing #ifndefs that caused missing symbols when building libssl
5892 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5893 NO_RSA in ssl/s2*.c.
5894 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5896 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5897 has a return value which indicates the quality of the random data
5898 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5899 error queue. New function RAND_pseudo_bytes() generates output that is
5900 guaranteed to be unique but not unpredictable. RAND_add is like
5901 RAND_seed, but takes an extra argument for an entropy estimate
5902 (RAND_seed always assumes full entropy).
5905 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5906 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5907 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5908 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5909 false-positive rate of at most 2^-80 for random input.
5912 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5915 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5916 in the 0.9.5 release), this returns the chain
5917 from an X509_CTX structure with a dup of the stack and all
5918 the X509 reference counts upped: so the stack will exist
5919 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5922 Also make SSL_SESSION_print() print out the verify return
5926 *) Add manpage for the pkcs12 command. Also change the default
5927 behaviour so MAC iteration counts are used unless the new
5928 -nomaciter option is used. This improves file security and
5929 only older versions of MSIE (4.0 for example) need it.
5932 *) Honor the no-xxx Configure options when creating .DEF files.
5935 *) Add PKCS#10 attributes to field table: challengePassword,
5936 unstructuredName and unstructuredAddress. These are taken from
5937 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5938 international characters are used.
5940 More changes to X509_ATTRIBUTE code: allow the setting of types
5941 based on strings. Remove the 'loc' parameter when adding
5942 attributes because these will be a SET OF encoding which is sorted
5946 *) Initial changes to the 'req' utility to allow request generation
5947 automation. This will allow an application to just generate a template
5948 file containing all the field values and have req construct the
5951 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5952 used all over the place including certificate requests and PKCS#7
5953 structures. They are currently handled manually where necessary with
5954 some primitive wrappers for PKCS#7. The new functions behave in a
5955 manner analogous to the X509 extension functions: they allow
5956 attributes to be looked up by NID and added.
5958 Later something similar to the X509V3 code would be desirable to
5959 automatically handle the encoding, decoding and printing of the
5960 more complex types. The string types like challengePassword can
5961 be handled by the string table functions.
5963 Also modified the multi byte string table handling. Now there is
5964 a 'global mask' which masks out certain types. The table itself
5965 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5966 is useful when for example there is only one permissible type
5967 (as in countryName) and using the mask might result in no valid
5971 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5972 SSL_get_peer_finished to allow applications to obtain the latest
5973 Finished messages sent to the peer or expected from the peer,
5974 respectively. (SSL_get_peer_finished is usually the Finished message
5975 actually received from the peer, otherwise the protocol will be aborted.)
5977 As the Finished message are message digests of the complete handshake
5978 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5979 be used for external authentication procedures when the authentication
5980 provided by SSL/TLS is not desired or is not enough.
5983 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5984 the host supports BWX extension and if Compaq C is present on the
5985 $PATH. Just exploiting of the BWX extension results in 20-30%
5986 performance kick for some algorithms, e.g. DES and RC4 to mention
5987 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5991 *) Add support for MS "fast SGC". This is arguably a violation of the
5992 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5993 weak crypto and after checking the certificate is SGC a second one
5994 with strong crypto. MS SGC stops the first handshake after receiving
5995 the server certificate message and sends a second client hello. Since
5996 a server will typically do all the time consuming operations before
5997 expecting any further messages from the client (server key exchange
5998 is the most expensive) there is little difference between the two.
6000 To get OpenSSL to support MS SGC we have to permit a second client
6001 hello message after we have sent server done. In addition we have to
6002 reset the MAC if we do get this second client hello.
6005 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6006 if a DER encoded private key is RSA or DSA traditional format. Changed
6007 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6008 format DER encoded private key. Newer code should use PKCS#8 format which
6009 has the key type encoded in the ASN1 structure. Added DER private key
6010 support to pkcs8 application.
6013 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6014 ciphersuites has been selected (as required by the SSL 3/TLS 1
6015 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6016 is set, we interpret this as a request to violate the specification
6017 (the worst that can happen is a handshake failure, and 'correct'
6018 behaviour would result in a handshake failure anyway).
6021 *) In SSL_CTX_add_session, take into account that there might be multiple
6022 SSL_SESSION structures with the same session ID (e.g. when two threads
6023 concurrently obtain them from an external cache).
6024 The internal cache can handle only one SSL_SESSION with a given ID,
6025 so if there's a conflict, we now throw out the old one to achieve
6029 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6030 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6031 some routines that use cipher OIDs: some ciphers do not have OIDs
6032 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6036 *) Simplify the trust setting structure and code. Now we just have
6037 two sequences of OIDs for trusted and rejected settings. These will
6038 typically have values the same as the extended key usage extension
6039 and any application specific purposes.
6041 The trust checking code now has a default behaviour: it will just
6042 check for an object with the same NID as the passed id. Functions can
6043 be provided to override either the default behaviour or the behaviour
6044 for a given id. SSL client, server and email already have functions
6045 in place for compatibility: they check the NID and also return "trusted"
6046 if the certificate is self signed.
6049 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6050 traditional format into an EVP_PKEY structure.
6053 *) Add a password callback function PEM_cb() which either prompts for
6054 a password if usr_data is NULL or otherwise assumes it is a null
6055 terminated password. Allow passwords to be passed on command line
6056 environment or config files in a few more utilities.
6059 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6060 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6061 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6062 Update documentation.
6065 *) Support for ASN1 "NULL" type. This could be handled before by using
6066 ASN1_TYPE but there wasn't any function that would try to read a NULL
6067 and produce an error if it couldn't. For compatibility we also have
6068 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6069 don't allocate anything because they don't need to.
6072 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6074 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6076 *) Rebuild of the memory allocation routines used by OpenSSL code and
6077 possibly others as well. The purpose is to make an interface that
6078 provide hooks so anyone can build a separate set of allocation and
6079 deallocation routines to be used by OpenSSL, for example memory
6080 pool implementations, or something else, which was previously hard
6081 since Malloc(), Realloc() and Free() were defined as macros having
6082 the values malloc, realloc and free, respectively (except for Win32
6083 compilations). The same is provided for memory debugging code.
6084 OpenSSL already comes with functionality to find memory leaks, but
6085 this gives people a chance to debug other memory problems.
6087 With these changes, a new set of functions and macros have appeared:
6089 CRYPTO_set_mem_debug_functions() [F]
6090 CRYPTO_get_mem_debug_functions() [F]
6091 CRYPTO_dbg_set_options() [F]
6092 CRYPTO_dbg_get_options() [F]
6093 CRYPTO_malloc_debug_init() [M]
6095 The memory debug functions are NULL by default, unless the library
6096 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6097 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6098 gives the standard debugging functions that come with OpenSSL) or
6099 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6100 provided by the library user) must be used. When the standard
6101 debugging functions are used, CRYPTO_dbg_set_options can be used to
6102 request additional information:
6103 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6104 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6106 Also, things like CRYPTO_set_mem_functions will always give the
6107 expected result (the new set of functions is used for allocation
6108 and deallocation) at all times, regardless of platform and compiler
6111 To finish it up, some functions that were never use in any other
6112 way than through macros have a new API and new semantic:
6115 CRYPTO_dbg_realloc()
6118 All macros of value have retained their old syntax.
6119 [Richard Levitte and Bodo Moeller]
6121 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6122 ordering of SMIMECapabilities wasn't in "strength order" and there
6123 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6127 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6128 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6129 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6131 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6132 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6133 functionality to handle multipart/signed properly) and a utility
6134 called 'smime' to call all this stuff. This is based on code I
6135 originally wrote for Celo who have kindly allowed it to be
6136 included in OpenSSL.
6139 *) Add variants des_set_key_checked and des_set_key_unchecked of
6140 des_set_key (aka des_key_sched). Global variable des_check_key
6141 decides which of these is called by des_set_key; this way
6142 des_check_key behaves as it always did, but applications and
6143 the library itself, which was buggy for des_check_key == 1,
6144 have a cleaner way to pick the version they need.
6147 *) New function PKCS12_newpass() which changes the password of a
6151 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6152 dynamic mix. In both cases the ids can be used as an index into the
6153 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6154 functions so they accept a list of the field values and the
6155 application doesn't need to directly manipulate the X509_TRUST
6159 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6163 *) Modify the way the V3 extension code looks up extensions. This now
6164 works in a similar way to the object code: we have some "standard"
6165 extensions in a static table which is searched with OBJ_bsearch()
6166 and the application can add dynamic ones if needed. The file
6167 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6168 updated whenever a new extension is added to the core code and kept
6169 in ext_nid order. There is a simple program 'tabtest.c' which checks
6170 this. New extensions are not added too often so this file can readily
6171 be maintained manually.
6173 There are two big advantages in doing things this way. The extensions
6174 can be looked up immediately and no longer need to be "added" using
6175 X509V3_add_standard_extensions(): this function now does nothing.
6176 [Side note: I get *lots* of email saying the extension code doesn't
6177 work because people forget to call this function]
6178 Also no dynamic allocation is done unless new extensions are added:
6179 so if we don't add custom extensions there is no need to call
6180 X509V3_EXT_cleanup().
6183 *) Modify enc utility's salting as follows: make salting the default. Add a
6184 magic header, so unsalted files fail gracefully instead of just decrypting
6185 to garbage. This is because not salting is a big security hole, so people
6186 should be discouraged from doing it.
6189 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6190 digest to be passed on the command line but it only used this
6191 parameter when signing a certificate. Modified so all relevant
6192 operations are affected by the digest parameter including the
6193 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6194 DSA key was used because it didn't fix the digest.
6197 *) Initial certificate chain verify code. Currently tests the untrusted
6198 certificates for consistency with the verify purpose (which is set
6199 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6201 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6202 this is because it will reject chains with invalid extensions whereas
6203 every previous version of OpenSSL and SSLeay made no checks at all.
6205 Trust code: checks the root CA for the relevant trust settings. Trust
6206 settings have an initial value consistent with the verify purpose: e.g.
6207 if the verify purpose is for SSL client use it expects the CA to be
6208 trusted for SSL client use. However the default value can be changed to
6209 permit custom trust settings: one example of this would be to only trust
6210 certificates from a specific "secure" set of CAs.
6212 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6213 which should be used for version portability: especially since the
6214 verify structure is likely to change more often now.
6216 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6217 to set them. If not set then assume SSL clients will verify SSL servers
6220 Two new options to the verify program: -untrusted allows a set of
6221 untrusted certificates to be passed in and -purpose which sets the
6222 intended purpose of the certificate. If a purpose is set then the
6223 new chain verify code is used to check extension consistency.
6226 *) Support for the authority information access extension.
6229 *) Modify RSA and DSA PEM read routines to transparently handle
6230 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6231 public keys in a format compatible with certificate
6232 SubjectPublicKeyInfo structures. Unfortunately there were already
6233 functions called *_PublicKey_* which used various odd formats so
6234 these are retained for compatibility: however the DSA variants were
6235 never in a public release so they have been deleted. Changed dsa/rsa
6236 utilities to handle the new format: note no releases ever handled public
6237 keys so we should be OK.
6239 The primary motivation for this change is to avoid the same fiasco
6240 that dogs private keys: there are several incompatible private key
6241 formats some of which are standard and some OpenSSL specific and
6242 require various evil hacks to allow partial transparent handling and
6243 even then it doesn't work with DER formats. Given the option anything
6244 other than PKCS#8 should be dumped: but the other formats have to
6245 stay in the name of compatibility.
6247 With public keys and the benefit of hindsight one standard format
6248 is used which works with EVP_PKEY, RSA or DSA structures: though
6249 it clearly returns an error if you try to read the wrong kind of key.
6251 Added a -pubkey option to the 'x509' utility to output the public key.
6252 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6253 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6254 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6255 that do the same as the EVP_PKEY_assign_*() except they up the
6256 reference count of the added key (they don't "swallow" the
6260 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6261 CRLs would fail if the file contained no certificates or no CRLs:
6262 added a new function to read in both types and return the number
6263 read: this means that if none are read it will be an error. The
6264 DER versions of the certificate and CRL reader would always fail
6265 because it isn't possible to mix certificates and CRLs in DER format
6266 without choking one or the other routine. Changed this to just read
6267 a certificate: this is the best we can do. Also modified the code
6268 in apps/verify.c to take notice of return codes: it was previously
6269 attempting to read in certificates from NULL pointers and ignoring
6270 any errors: this is one reason why the cert and CRL reader seemed
6271 to work. It doesn't check return codes from the default certificate
6272 routines: these may well fail if the certificates aren't installed.
6275 *) Code to support otherName option in GeneralName.
6278 *) First update to verify code. Change the verify utility
6279 so it warns if it is passed a self signed certificate:
6280 for consistency with the normal behaviour. X509_verify
6281 has been modified to it will now verify a self signed
6282 certificate if *exactly* the same certificate appears
6283 in the store: it was previously impossible to trust a
6284 single self signed certificate. This means that:
6285 openssl verify ss.pem
6286 now gives a warning about a self signed certificate but
6287 openssl verify -CAfile ss.pem ss.pem
6291 *) For servers, store verify_result in SSL_SESSION data structure
6292 (and add it to external session representation).
6293 This is needed when client certificate verifications fails,
6294 but an application-provided verification callback (set by
6295 SSL_CTX_set_cert_verify_callback) allows accepting the session
6296 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6297 but returns 1): When the session is reused, we have to set
6298 ssl->verify_result to the appropriate error code to avoid
6300 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6302 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6303 case in PKCS7_dataInit() where the signed PKCS7 structure
6304 didn't contain any existing data because it was being created.
6305 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6307 *) Add a salt to the key derivation routines in enc.c. This
6308 forms the first 8 bytes of the encrypted file. Also add a
6309 -S option to allow a salt to be input on the command line.
6312 *) New function X509_cmp(). Oddly enough there wasn't a function
6313 to compare two certificates. We do this by working out the SHA1
6314 hash and comparing that. X509_cmp() will be needed by the trust
6318 *) SSL_get1_session() is like SSL_get_session(), but increments
6319 the reference count in the SSL_SESSION returned.
6320 [Geoff Thorpe <geoff@eu.c2.net>]
6322 *) Fix for 'req': it was adding a null to request attributes.
6323 Also change the X509_LOOKUP and X509_INFO code to handle
6324 certificate auxiliary information.
6327 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6331 *) Add the possibility to add extra information to the memory leak
6332 detecting output, to form tracebacks, showing from where each
6333 allocation was originated: CRYPTO_push_info("constant string") adds
6334 the string plus current file name and line number to a per-thread
6335 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6336 is like calling CYRPTO_pop_info() until the stack is empty.
6337 Also updated memory leak detection code to be multi-thread-safe.
6340 *) Add options -text and -noout to pkcs7 utility and delete the
6341 encryption options which never did anything. Update docs.
6344 *) Add options to some of the utilities to allow the pass phrase
6345 to be included on either the command line (not recommended on
6346 OSes like Unix) or read from the environment. Update the
6347 manpages and fix a few bugs.
6350 *) Add a few manpages for some of the openssl commands.
6353 *) Fix the -revoke option in ca. It was freeing up memory twice,
6354 leaking and not finding already revoked certificates.
6357 *) Extensive changes to support certificate auxiliary information.
6358 This involves the use of X509_CERT_AUX structure and X509_AUX
6359 functions. An X509_AUX function such as PEM_read_X509_AUX()
6360 can still read in a certificate file in the usual way but it
6361 will also read in any additional "auxiliary information". By
6362 doing things this way a fair degree of compatibility can be
6363 retained: existing certificates can have this information added
6364 using the new 'x509' options.
6366 Current auxiliary information includes an "alias" and some trust
6367 settings. The trust settings will ultimately be used in enhanced
6368 certificate chain verification routines: currently a certificate
6369 can only be trusted if it is self signed and then it is trusted
6373 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6374 The problem was that one of the replacement routines had not been working
6375 since SSLeay releases. For now the offending routine has been replaced
6376 with non-optimised assembler. Even so, this now gives around 95%
6377 performance improvement for 1024 bit RSA signs.
6380 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6381 handling. Most clients have the effective key size in bits equal to
6382 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6383 A few however don't do this and instead use the size of the decrypted key
6384 to determine the RC2 key length and the AlgorithmIdentifier to determine
6385 the effective key length. In this case the effective key length can still
6386 be 40 bits but the key length can be 168 bits for example. This is fixed
6387 by manually forcing an RC2 key into the EVP_PKEY structure because the
6388 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6389 the key length and effective key length are equal.
6392 *) Add a bunch of functions that should simplify the creation of
6393 X509_NAME structures. Now you should be able to do:
6394 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6395 and have it automatically work out the correct field type and fill in
6396 the structures. The more adventurous can try:
6397 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6398 and it will (hopefully) work out the correct multibyte encoding.
6401 *) Change the 'req' utility to use the new field handling and multibyte
6402 copy routines. Before the DN field creation was handled in an ad hoc
6403 way in req, ca, and x509 which was rather broken and didn't support
6404 BMPStrings or UTF8Strings. Since some software doesn't implement
6405 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6406 using the dirstring_type option. See the new comment in the default
6407 openssl.cnf for more info.
6410 *) Make crypto/rand/md_rand.c more robust:
6411 - Assure unique random numbers after fork().
6412 - Make sure that concurrent threads access the global counter and
6413 md serializably so that we never lose entropy in them
6414 or use exactly the same state in multiple threads.
6415 Access to the large state is not always serializable because
6416 the additional locking could be a performance killer, and
6417 md should be large enough anyway.
6420 *) New file apps/app_rand.c with commonly needed functionality
6421 for handling the random seed file.
6423 Use the random seed file in some applications that previously did not:
6425 dsaparam -genkey (which also ignored its '-rand' option),
6428 x509 (when signing).
6429 Except on systems with /dev/urandom, it is crucial to have a random
6430 seed file at least for key creation, DSA signing, and for DH exchanges;
6431 for RSA signatures we could do without one.
6433 gendh and gendsa (unlike genrsa) used to read only the first byte
6434 of each file listed in the '-rand' option. The function as previously
6435 found in genrsa is now in app_rand.c and is used by all programs
6436 that support '-rand'.
6439 *) In RAND_write_file, use mode 0600 for creating files;
6440 don't just chmod when it may be too late.
6443 *) Report an error from X509_STORE_load_locations
6444 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6447 *) New function ASN1_mbstring_copy() this copies a string in either
6448 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6449 into an ASN1_STRING type. A mask of permissible types is passed
6450 and it chooses the "minimal" type to use or an error if not type
6454 *) Add function equivalents to the various macros in asn1.h. The old
6455 macros are retained with an M_ prefix. Code inside the library can
6456 use the M_ macros. External code (including the openssl utility)
6457 should *NOT* in order to be "shared library friendly".
6460 *) Add various functions that can check a certificate's extensions
6461 to see if it usable for various purposes such as SSL client,
6462 server or S/MIME and CAs of these types. This is currently
6463 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6464 verification. Also added a -purpose flag to x509 utility to
6465 print out all the purposes.
6468 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6472 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6473 for, obtain and decode and extension and obtain its critical flag.
6474 This allows all the necessary extension code to be handled in a
6475 single function call.
6478 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6479 platforms. See crypto/rc4/rc4_enc.c for further details.
6482 *) New -noout option to asn1parse. This causes no output to be produced
6483 its main use is when combined with -strparse and -out to extract data
6484 from a file (which may not be in ASN.1 format).
6487 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6488 when producing the local key id.
6489 [Richard Levitte <levitte@stacken.kth.se>]
6491 *) New option -dhparam in s_server. This allows a DH parameter file to be
6492 stated explicitly. If it is not stated then it tries the first server
6493 certificate file. The previous behaviour hard coded the filename
6497 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6498 a public key to be input or output. For example:
6499 openssl rsa -in key.pem -pubout -out pubkey.pem
6500 Also added necessary DSA public key functions to handle this.
6503 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6504 in the message. This was handled by allowing
6505 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6506 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6508 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6509 to the end of the strings whereas this didn't. This would cause problems
6510 if strings read with d2i_ASN1_bytes() were later modified.
6511 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6513 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6514 data and it contains EOF it will end up returning an error. This is
6515 caused by input 46 bytes long. The cause is due to the way base64
6516 BIOs find the start of base64 encoded data. They do this by trying a
6517 trial decode on each line until they find one that works. When they
6518 do a flag is set and it starts again knowing it can pass all the
6519 data directly through the decoder. Unfortunately it doesn't reset
6520 the context it uses. This means that if EOF is reached an attempt
6521 is made to pass two EOFs through the context and this causes the
6522 resulting error. This can also cause other problems as well. As is
6523 usual with these problems it takes *ages* to find and the fix is
6524 trivial: move one line.
6525 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6527 *) Ugly workaround to get s_client and s_server working under Windows. The
6528 old code wouldn't work because it needed to select() on sockets and the
6529 tty (for keypresses and to see if data could be written). Win32 only
6530 supports select() on sockets so we select() with a 1s timeout on the
6531 sockets and then see if any characters are waiting to be read, if none
6532 are present then we retry, we also assume we can always write data to
6533 the tty. This isn't nice because the code then blocks until we've
6534 received a complete line of data and it is effectively polling the
6535 keyboard at 1s intervals: however it's quite a bit better than not
6536 working at all :-) A dedicated Windows application might handle this
6537 with an event loop for example.
6540 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6541 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6542 will be called when RSA_sign() and RSA_verify() are used. This is useful
6543 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6544 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6545 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6546 This necessitated the support of an extra signature type NID_md5_sha1
6547 for SSL signatures and modifications to the SSL library to use it instead
6548 of calling RSA_public_decrypt() and RSA_private_encrypt().
6551 *) Add new -verify -CAfile and -CApath options to the crl program, these
6552 will lookup a CRL issuers certificate and verify the signature in a
6553 similar way to the verify program. Tidy up the crl program so it
6554 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6555 less strict. It will now permit CRL extensions even if it is not
6556 a V2 CRL: this will allow it to tolerate some broken CRLs.
6559 *) Initialize all non-automatic variables each time one of the openssl
6560 sub-programs is started (this is necessary as they may be started
6561 multiple times from the "OpenSSL>" prompt).
6562 [Lennart Bang, Bodo Moeller]
6564 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6565 removing all other RSA functionality (this is what NO_RSA does). This
6566 is so (for example) those in the US can disable those operations covered
6567 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6571 *) Non-copying interface to BIO pairs.
6572 (still largely untested)
6575 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6576 ASCII string. This was handled independently in various places before.
6579 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6580 UTF8 strings a character at a time.
6583 *) Use client_version from client hello to select the protocol
6584 (s23_srvr.c) and for RSA client key exchange verification
6585 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6588 *) Add various utility functions to handle SPKACs, these were previously
6589 handled by poking round in the structure internals. Added new function
6590 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6591 print, verify and generate SPKACs. Based on an original idea from
6592 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6595 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6598 *) Allow the config file extension section to be overwritten on the
6599 command line. Based on an original idea from Massimiliano Pala
6600 <madwolf@comune.modena.it>. The new option is called -extensions
6601 and can be applied to ca, req and x509. Also -reqexts to override
6602 the request extensions in req and -crlexts to override the crl extensions
6606 *) Add new feature to the SPKAC handling in ca. Now you can include
6607 the same field multiple times by preceding it by "XXXX." for example:
6610 this is the same syntax as used in the req config file.
6613 *) Allow certificate extensions to be added to certificate requests. These
6614 are specified in a 'req_extensions' option of the req section of the
6615 config file. They can be printed out with the -text option to req but
6616 are otherwise ignored at present.
6619 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6620 data read consists of only the final block it would not decrypted because
6621 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6622 A misplaced 'break' also meant the decrypted final block might not be
6623 copied until the next read.
6626 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6627 a few extra parameters to the DH structure: these will be useful if
6628 for example we want the value of 'q' or implement X9.42 DH.
6631 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6632 provides hooks that allow the default DSA functions or functions on a
6633 "per key" basis to be replaced. This allows hardware acceleration and
6634 hardware key storage to be handled without major modification to the
6635 library. Also added low level modexp hooks and CRYPTO_EX structure and
6636 associated functions.
6639 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6640 as "read only": it can't be written to and the buffer it points to will
6641 not be freed. Reading from a read only BIO is much more efficient than
6642 a normal memory BIO. This was added because there are several times when
6643 an area of memory needs to be read from a BIO. The previous method was
6644 to create a memory BIO and write the data to it, this results in two
6645 copies of the data and an O(n^2) reading algorithm. There is a new
6646 function BIO_new_mem_buf() which creates a read only memory BIO from
6647 an area of memory. Also modified the PKCS#7 routines to use read only
6651 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6652 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6653 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6654 but a retry condition occured while trying to read the rest.
6657 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6658 NID_pkcs7_encrypted by default: this was wrong since this should almost
6659 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6660 the encrypted data type: this is a more sensible place to put it and it
6661 allows the PKCS#12 code to be tidied up that duplicated this
6665 *) Changed obj_dat.pl script so it takes its input and output files on
6666 the command line. This should avoid shell escape redirection problems
6670 *) Initial support for certificate extension requests, these are included
6671 in things like Xenroll certificate requests. Included functions to allow
6672 extensions to be obtained and added.
6675 *) -crlf option to s_client and s_server for sending newlines as
6676 CRLF (as required by many protocols).
6679 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6681 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6682 [Ralf S. Engelschall]
6684 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6685 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6687 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6691 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6692 DH parameters/keys (q is lost during that conversion, but the resulting
6693 DH parameters contain its length).
6695 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6696 much faster than DH_generate_parameters (which creates parameters
6697 where p = 2*q + 1), and also the smaller q makes DH computations
6698 much more efficient (160-bit exponentiation instead of 1024-bit
6699 exponentiation); so this provides a convenient way to support DHE
6700 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6701 utter importance to use
6702 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6704 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6705 when such DH parameters are used, because otherwise small subgroup
6706 attacks may become possible!
6709 *) Avoid memory leak in i2d_DHparams.
6712 *) Allow the -k option to be used more than once in the enc program:
6713 this allows the same encrypted message to be read by multiple recipients.
6716 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6717 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6718 it will always use the numerical form of the OID, even if it has a short
6722 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6723 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6724 otherwise bn_mod_exp was called. In the case of hardware keys for example
6725 no private key components need be present and it might store extra data
6726 in the RSA structure, which cannot be accessed from bn_mod_exp.
6727 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6728 private key operations.
6731 *) Added support for SPARC Linux.
6734 *) pem_password_cb function type incompatibly changed from
6735 typedef int pem_password_cb(char *buf, int size, int rwflag);
6737 ....(char *buf, int size, int rwflag, void *userdata);
6738 so that applications can pass data to their callbacks:
6739 The PEM[_ASN1]_{read,write}... functions and macros now take an
6740 additional void * argument, which is just handed through whenever
6741 the password callback is called.
6742 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6744 New function SSL_CTX_set_default_passwd_cb_userdata.
6746 Compatibility note: As many C implementations push function arguments
6747 onto the stack in reverse order, the new library version is likely to
6748 interoperate with programs that have been compiled with the old
6749 pem_password_cb definition (PEM_whatever takes some data that
6750 happens to be on the stack as its last argument, and the callback
6751 just ignores this garbage); but there is no guarantee whatsoever that
6754 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6755 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6756 problems not only on Windows, but also on some Unix platforms.
6757 To avoid problematic command lines, these definitions are now in an
6758 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6759 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6762 *) MIPS III/IV assembler module is reimplemented.
6765 *) More DES library cleanups: remove references to srand/rand and
6766 delete an unused file.
6769 *) Add support for the the free Netwide assembler (NASM) under Win32,
6770 since not many people have MASM (ml) and it can be hard to obtain.
6771 This is currently experimental but it seems to work OK and pass all
6772 the tests. Check out INSTALL.W32 for info.
6775 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6776 without temporary keys kept an extra copy of the server key,
6777 and connections with temporary keys did not free everything in case
6781 *) New function RSA_check_key and new openssl rsa option -check
6782 for verifying the consistency of RSA keys.
6783 [Ulf Moeller, Bodo Moeller]
6785 *) Various changes to make Win32 compile work:
6786 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6787 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6788 comparison" warnings.
6789 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6792 *) Add a debugging option to PKCS#5 v2 key generation function: when
6793 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6794 derived keys are printed to stderr.
6797 *) Copy the flags in ASN1_STRING_dup().
6798 [Roman E. Pavlov <pre@mo.msk.ru>]
6800 *) The x509 application mishandled signing requests containing DSA
6801 keys when the signing key was also DSA and the parameters didn't match.
6803 It was supposed to omit the parameters when they matched the signing key:
6804 the verifying software was then supposed to automatically use the CA's
6805 parameters if they were absent from the end user certificate.
6807 Omitting parameters is no longer recommended. The test was also
6808 the wrong way round! This was probably due to unusual behaviour in
6809 EVP_cmp_parameters() which returns 1 if the parameters match.
6810 This meant that parameters were omitted when they *didn't* match and
6811 the certificate was useless. Certificates signed with 'ca' didn't have
6813 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6815 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6816 The interface is as follows:
6817 Applications can use
6818 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6819 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6820 "off" is now the default.
6821 The library internally uses
6822 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6823 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6824 to disable memory-checking temporarily.
6826 Some inconsistent states that previously were possible (and were
6827 even the default) are now avoided.
6829 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6830 with each memory chunk allocated; this is occasionally more helpful
6831 than just having a counter.
6833 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6835 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6839 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6840 which largely parallels "options", but is for changing API behaviour,
6841 whereas "options" are about protocol behaviour.
6842 Initial "mode" flags are:
6844 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6845 a single record has been written.
6846 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6847 retries use the same buffer location.
6848 (But all of the contents must be
6852 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6855 *) Fix problems with no-hmac etc.
6856 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6858 *) New functions RSA_get_default_method(), RSA_set_method() and
6859 RSA_get_method(). These allows replacement of RSA_METHODs without having
6860 to mess around with the internals of an RSA structure.
6863 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6864 Also really enable memory leak checks in openssl.c and in some
6866 [Chad C. Mulligan, Bodo Moeller]
6868 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6869 up the length of negative integers. This has now been simplified to just
6870 store the length when it is first determined and use it later, rather
6871 than trying to keep track of where data is copied and updating it to
6873 [Steve Henson, reported by Brien Wheeler
6874 <bwheeler@authentica-security.com>]
6876 *) Add a new function PKCS7_signatureVerify. This allows the verification
6877 of a PKCS#7 signature but with the signing certificate passed to the
6878 function itself. This contrasts with PKCS7_dataVerify which assumes the
6879 certificate is present in the PKCS#7 structure. This isn't always the
6880 case: certificates can be omitted from a PKCS#7 structure and be
6881 distributed by "out of band" means (such as a certificate database).
6884 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6885 function prototypes in pem.h, also change util/mkdef.pl to add the
6886 necessary function names.
6889 *) mk1mf.pl (used by Windows builds) did not properly read the
6890 options set by Configure in the top level Makefile, and Configure
6891 was not even able to write more than one option correctly.
6892 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6895 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6896 file to be loaded from a BIO or FILE pointer. The BIO version will
6897 for example allow memory BIOs to contain config info.
6900 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6901 Whoever hopes to achieve shared-library compatibility across versions
6902 must use this, not the compile-time macro.
6903 (Exercise 0.9.4: Which is the minimum library version required by
6905 Note: All this applies only to multi-threaded programs, others don't
6909 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6910 through a BIO pair triggered the default case, i.e.
6911 SSLerr(...,SSL_R_UNKNOWN_STATE).
6914 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6915 can use the SSL library even if none of the specific BIOs is
6919 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6920 for the encoded length.
6921 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6923 *) Add initial documentation of the X509V3 functions.
6926 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6927 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6928 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6929 secure PKCS#8 private key format with a high iteration count.
6932 *) Fix determination of Perl interpreter: A perl or perl5
6933 _directory_ in $PATH was also accepted as the interpreter.
6934 [Ralf S. Engelschall]
6936 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6937 wrong with it but it was very old and did things like calling
6938 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6942 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6943 to use the new extension code.
6946 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6947 with macros. This should make it easier to change their form, add extra
6948 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6952 *) Add to configuration table a new entry that can specify an alternative
6953 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6954 according to Mark Crispin <MRC@Panda.COM>.
6958 *) DES CBC did not update the IV. Weird.
6961 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6962 Changing the behaviour of the former might break existing programs --
6963 where IV updating is needed, des_ncbc_encrypt can be used.
6966 *) When bntest is run from "make test" it drives bc to check its
6967 calculations, as well as internally checking them. If an internal check
6968 fails, it needs to cause bc to give a non-zero result or make test carries
6969 on without noticing the failure. Fixed.
6972 *) DES library cleanups.
6975 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6976 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6977 ciphers. NOTE: although the key derivation function has been verified
6978 against some published test vectors it has not been extensively tested
6979 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6983 *) Instead of "mkdir -p", which is not fully portable, use new
6984 Perl script "util/mkdir-p.pl".
6987 *) Rewrite the way password based encryption (PBE) is handled. It used to
6988 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6989 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6990 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6991 the 'parameter' field of the AlgorithmIdentifier is passed to the
6992 underlying key generation function so it must do its own ASN1 parsing.
6993 This has also changed the EVP_PBE_CipherInit() function which now has a
6994 'parameter' argument instead of literal salt and iteration count values
6995 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6998 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6999 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7000 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7001 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7002 value was just used as a "magic string" and not used directly its
7003 value doesn't matter.
7006 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7010 *) "linux-sparc64" configuration (ultrapenguin).
7011 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7012 "linux-sparc" configuration.
7013 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7015 *) config now generates no-xxx options for missing ciphers.
7018 *) Support the EBCDIC character set (work in progress).
7019 File ebcdic.c not yet included because it has a different license.
7020 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7022 *) Support BS2000/OSD-POSIX.
7023 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7025 *) Make callbacks for key generation use void * instead of char *.
7028 *) Make S/MIME samples compile (not yet tested).
7031 *) Additional typesafe stacks.
7034 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7038 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7040 *) New configuration variant "sco5-gcc".
7042 *) Updated some demos.
7043 [Sean O Riordain, Wade Scholine]
7045 *) Add missing BIO_free at exit of pkcs12 application.
7048 *) Fix memory leak in conf.c.
7051 *) Updates for Win32 to assembler version of MD5.
7054 *) Set #! path to perl in apps/der_chop to where we found it
7055 instead of using a fixed path.
7058 *) SHA library changes for irix64-mips4-cc.
7061 *) Improvements for VMS support.
7065 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7067 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7068 This also avoids the problems with SC4.2 and unpatched SC5.
7069 [Andy Polyakov <appro@fy.chalmers.se>]
7071 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7072 These are required because of the typesafe stack would otherwise break
7073 existing code. If old code used a structure member which used to be STACK
7074 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7075 sk_num or sk_value it would produce an error because the num, data members
7076 are not present in STACK_OF. Now it just produces a warning. sk_set
7077 replaces the old method of assigning a value to sk_value
7078 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7079 that does this will no longer work (and should use sk_set instead) but
7080 this could be regarded as a "questionable" behaviour anyway.
7083 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7084 correctly handle encrypted S/MIME data.
7087 *) Change type of various DES function arguments from des_cblock
7088 (which means, in function argument declarations, pointer to char)
7089 to des_cblock * (meaning pointer to array with 8 char elements),
7090 which allows the compiler to do more typechecking; it was like
7091 that back in SSLeay, but with lots of ugly casts.
7093 Introduce new type const_des_cblock.
7096 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7097 problems: find RecipientInfo structure that matches recipient certificate
7098 and initialise the ASN1 structures properly based on passed cipher.
7101 *) Belatedly make the BN tests actually check the results.
7104 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7105 to and from BNs: it was completely broken. New compilation option
7106 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7107 key elements as negative integers.
7110 *) Reorganize and speed up MD5.
7111 [Andy Polyakov <appro@fy.chalmers.se>]
7114 [Richard Levitte <richard@levitte.org>]
7116 *) New option -out to asn1parse to allow the parsed structure to be
7117 output to a file. This is most useful when combined with the -strparse
7118 option to examine the output of things like OCTET STRINGS.
7121 *) Make SSL library a little more fool-proof by not requiring any longer
7122 that SSL_set_{accept,connect}_state be called before
7123 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7124 in many applications because usually everything *appeared* to work as
7125 intended anyway -- now it really works as intended).
7128 *) Move openssl.cnf out of lib/.
7131 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7132 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7133 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7134 [Ralf S. Engelschall]
7136 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7137 handle PKCS#7 enveloped data properly.
7138 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7140 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7141 copying pointers. The cert_st handling is changed by this in
7142 various ways (and thus what used to be known as ctx->default_cert
7143 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7144 any longer when s->cert does not give us what we need).
7145 ssl_cert_instantiate becomes obsolete by this change.
7146 As soon as we've got the new code right (possibly it already is?),
7147 we have solved a couple of bugs of the earlier code where s->cert
7148 was used as if it could not have been shared with other SSL structures.
7150 Note that using the SSL API in certain dirty ways now will result
7151 in different behaviour than observed with earlier library versions:
7152 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7153 does not influence s as it used to.
7155 In order to clean up things more thoroughly, inside SSL_SESSION
7156 we don't use CERT any longer, but a new structure SESS_CERT
7157 that holds per-session data (if available); currently, this is
7158 the peer's certificate chain and, for clients, the server's certificate
7159 and temporary key. CERT holds only those values that can have
7160 meaningful defaults in an SSL_CTX.
7163 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7164 from the internal representation. Various PKCS#7 fixes: remove some
7165 evil casts and set the enc_dig_alg field properly based on the signing
7169 *) Allow PKCS#12 password to be set from the command line or the
7170 environment. Let 'ca' get its config file name from the environment
7171 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7175 *) Allow certificate policies extension to use an IA5STRING for the
7176 organization field. This is contrary to the PKIX definition but
7177 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7181 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7182 without disallowing inline assembler and the like for non-pedantic builds.
7185 *) Support Borland C++ builder.
7186 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7191 *) SHA-1 cleanups and performance enhancements.
7192 [Andy Polyakov <appro@fy.chalmers.se>]
7194 *) Sparc v8plus assembler for the bignum library.
7195 [Andy Polyakov <appro@fy.chalmers.se>]
7197 *) Accept any -xxx and +xxx compiler options in Configure.
7200 *) Update HPUX configuration.
7203 *) Add missing sk_<type>_unshift() function to safestack.h
7204 [Ralf S. Engelschall]
7206 *) New function SSL_CTX_use_certificate_chain_file that sets the
7207 "extra_cert"s in addition to the certificate. (This makes sense
7208 only for "PEM" format files, as chains as a whole are not
7212 *) Support verify_depth from the SSL API.
7213 x509_vfy.c had what can be considered an off-by-one-error:
7214 Its depth (which was not part of the external interface)
7215 was actually counting the number of certificates in a chain;
7216 now it really counts the depth.
7219 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7220 instead of X509err, which often resulted in confusing error
7221 messages since the error codes are not globally unique
7222 (e.g. an alleged error in ssl3_accept when a certificate
7223 didn't match the private key).
7225 *) New function SSL_CTX_set_session_id_context that allows to set a default
7226 value (so that you don't need SSL_set_session_id_context for each
7227 connection using the SSL_CTX).
7230 *) OAEP decoding bug fix.
7233 *) Support INSTALL_PREFIX for package builders, as proposed by
7237 *) New Configure options "threads" and "no-threads". For systems
7238 where the proper compiler options are known (currently Solaris
7239 and Linux), "threads" is the default.
7242 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7245 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7246 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7247 such as /usr/local/bin.
7250 *) "make linux-shared" to build shared libraries.
7251 [Niels Poppe <niels@netbox.org>]
7253 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7256 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7257 extension adding in x509 utility.
7260 *) Remove NOPROTO sections and error code comments.
7263 *) Partial rewrite of the DEF file generator to now parse the ANSI
7267 *) New Configure options --prefix=DIR and --openssldir=DIR.
7270 *) Complete rewrite of the error code script(s). It is all now handled
7271 by one script at the top level which handles error code gathering,
7272 header rewriting and C source file generation. It should be much better
7273 than the old method: it now uses a modified version of Ulf's parser to
7274 read the ANSI prototypes in all header files (thus the old K&R definitions
7275 aren't needed for error creation any more) and do a better job of
7276 translating function codes into names. The old 'ASN1 error code imbedded
7277 in a comment' is no longer necessary and it doesn't use .err files which
7278 have now been deleted. Also the error code call doesn't have to appear all
7279 on one line (which resulted in some large lines...).
7282 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7285 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7286 0 (which usually indicates a closed connection), but continue reading.
7289 *) Fix some race conditions.
7292 *) Add support for CRL distribution points extension. Add Certificate
7293 Policies and CRL distribution points documentation.
7296 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7299 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7300 8 of keying material. Merlin has also confirmed interop with this fix
7301 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7302 [Merlin Hughes <merlin@baltimore.ie>]
7304 *) Fix lots of warnings.
7305 [Richard Levitte <levitte@stacken.kth.se>]
7307 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7308 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7309 [Richard Levitte <levitte@stacken.kth.se>]
7311 *) Fix problems with sizeof(long) == 8.
7312 [Andy Polyakov <appro@fy.chalmers.se>]
7314 *) Change functions to ANSI C.
7317 *) Fix typos in error codes.
7318 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7320 *) Remove defunct assembler files from Configure.
7323 *) SPARC v8 assembler BIGNUM implementation.
7324 [Andy Polyakov <appro@fy.chalmers.se>]
7326 *) Support for Certificate Policies extension: both print and set.
7327 Various additions to support the r2i method this uses.
7330 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7331 return a const string when you are expecting an allocated buffer.
7334 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7335 types DirectoryString and DisplayText.
7338 *) Add code to allow r2i extensions to access the configuration database,
7339 add an LHASH database driver and add several ctx helper functions.
7342 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7343 fail when they extended the size of a BIGNUM.
7346 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7347 support typesafe stack.
7350 *) Fix typo in SSL_[gs]et_options().
7351 [Nils Frostberg <nils@medcom.se>]
7353 *) Delete various functions and files that belonged to the (now obsolete)
7354 old X509V3 handling code.
7357 *) New Configure option "rsaref".
7360 *) Don't auto-generate pem.h.
7363 *) Introduce type-safe ASN.1 SETs.
7366 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7367 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7369 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7370 that links with OpenSSL (well at least cause lots of warnings), but fear
7371 not: the conversion is trivial, and it eliminates loads of evil casts. A
7372 few STACKed things have been converted already. Feel free to convert more.
7373 In the fullness of time, I'll do away with the STACK type altogether.
7376 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7377 specified in <certfile> by updating the entry in the index.txt file.
7378 This way one no longer has to edit the index.txt file manually for
7379 revoking a certificate. The -revoke option does the gory details now.
7380 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7382 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7383 `-text' option at all and this way the `-noout -text' combination was
7384 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7385 [Ralf S. Engelschall]
7387 *) Make sure a corresponding plain text error message exists for the
7388 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7389 verify callback function determined that a certificate was revoked.
7390 [Ralf S. Engelschall]
7392 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7393 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7394 all available cipers including rc5, which was forgotten until now.
7395 In order to let the testing shell script know which algorithms
7396 are available, a new (up to now undocumented) command
7397 "openssl list-cipher-commands" is used.
7400 *) Bugfix: s_client occasionally would sleep in select() when
7401 it should have checked SSL_pending() first.
7404 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7405 the raw DSA values prior to ASN.1 encoding.
7408 *) Tweaks to Configure
7409 [Niels Poppe <niels@netbox.org>]
7411 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7415 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7418 *) New config option to avoid instructions that are illegal on the 80386.
7419 The default code is faster, but requires at least a 486.
7422 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7423 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7424 same as SSL2_VERSION anyway.
7427 *) New "-showcerts" option for s_client.
7430 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7431 application. Various cleanups and fixes.
7434 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7435 modify error routines to work internally. Add error codes and PBE init
7436 to library startup routines.
7439 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7440 packing functions to asn1 and evp. Changed function names and error
7441 codes along the way.
7444 *) PKCS12 integration: and so it begins... First of several patches to
7445 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7446 objects to objects.h
7449 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7450 and display support for Thawte strong extranet extension.
7453 *) Add LinuxPPC support.
7454 [Jeff Dubrule <igor@pobox.org>]
7456 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7457 bn_div_words in alpha.s.
7458 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7460 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7461 OAEP isn't supported when OpenSSL is built with RSAref.
7462 [Ulf Moeller <ulf@fitug.de>]
7464 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7465 so they no longer are missing under -DNOPROTO.
7466 [Soren S. Jorvang <soren@t.dk>]
7469 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7471 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7472 doesn't work when the session is reused. Coming soon!
7475 *) Fix a security hole, that allows sessions to be reused in the wrong
7476 context thus bypassing client cert protection! All software that uses
7477 client certs and session caches in multiple contexts NEEDS PATCHING to
7478 allow session reuse! A fuller solution is in the works.
7479 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7481 *) Some more source tree cleanups (removed obsolete files
7482 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7483 permission on "config" script to be executable) and a fix for the INSTALL
7485 [Ulf Moeller <ulf@fitug.de>]
7487 *) Remove some legacy and erroneous uses of malloc, free instead of
7489 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7491 *) Make rsa_oaep_test return non-zero on error.
7492 [Ulf Moeller <ulf@fitug.de>]
7494 *) Add support for native Solaris shared libraries. Configure
7495 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7496 if someone would make that last step automatic.
7497 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7499 *) ctx_size was not built with the right compiler during "make links". Fixed.
7502 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7503 except NULL ciphers". This means the default cipher list will no longer
7504 enable NULL ciphers. They need to be specifically enabled e.g. with
7505 the string "DEFAULT:eNULL".
7508 *) Fix to RSA private encryption routines: if p < q then it would
7509 occasionally produce an invalid result. This will only happen with
7510 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7513 *) Be less restrictive and allow also `perl util/perlpath.pl
7514 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7515 because this way one can also use an interpreter named `perl5' (which is
7516 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7517 installed as `perl').
7518 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7520 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7521 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7523 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7524 advapi32.lib to Win32 build and change the pem test comparision
7525 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7526 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7527 and crypto/des/ede_cbcm_enc.c.
7530 *) DES quad checksum was broken on big-endian architectures. Fixed.
7533 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7534 Win32 test batch file so it (might) work again. The Win32 test batch file
7535 is horrible: I feel ill....
7538 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7539 in e_os.h. Audit of header files to check ANSI and non ANSI
7540 sections: 10 functions were absent from non ANSI section and not exported
7541 from Windows DLLs. Fixed up libeay.num for new functions.
7544 *) Make `openssl version' output lines consistent.
7545 [Ralf S. Engelschall]
7547 *) Fix Win32 symbol export lists for BIO functions: Added
7548 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7549 to ms/libeay{16,32}.def.
7550 [Ralf S. Engelschall]
7552 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7553 fine under Unix and passes some trivial tests I've now added. But the
7554 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7555 added to make sure no one expects that this stuff really works in the
7556 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7557 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7559 [Ralf S. Engelschall]
7561 *) Fix the generation of two part addresses in perl.
7562 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7564 *) Add config entry for Linux on MIPS.
7565 [John Tobey <jtobey@channel1.com>]
7567 *) Make links whenever Configure is run, unless we are on Windoze.
7570 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7571 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7575 *) Add a useful kludge to allow package maintainers to specify compiler and
7576 other platforms details on the command line without having to patch the
7577 Configure script everytime: One now can use ``perl Configure
7578 <id>:<details>'', i.e. platform ids are allowed to have details appended
7579 to them (seperated by colons). This is treated as there would be a static
7580 pre-configured entry in Configure's %table under key <id> with value
7581 <details> and ``perl Configure <id>'' is called. So, when you want to
7582 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7583 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7584 now, which overrides the FreeBSD-elf entry on-the-fly.
7585 [Ralf S. Engelschall]
7587 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7590 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7591 on the `perl Configure ...' command line. This way one can compile
7592 OpenSSL libraries with Position Independent Code (PIC) which is needed
7593 for linking it into DSOs.
7594 [Ralf S. Engelschall]
7596 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7600 *) Cleaned up the LICENSE document: The official contact for any license
7601 questions now is the OpenSSL core team under openssl-core@openssl.org.
7602 And add a paragraph about the dual-license situation to make sure people
7603 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7604 to the OpenSSL toolkit.
7605 [Ralf S. Engelschall]
7607 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7608 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7609 Additonally cleaned up the `make links' target: Remove unnecessary
7610 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7611 to speed processing and no longer clutter the display with confusing
7612 stuff. Instead only the actually done links are displayed.
7613 [Ralf S. Engelschall]
7615 *) Permit null encryption ciphersuites, used for authentication only. It used
7616 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7617 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7621 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7622 signed attributes when verifying signatures (this would break them),
7623 the detached data encoding was wrong and public keys obtained using
7624 X509_get_pubkey() weren't freed.
7627 *) Add text documentation for the BUFFER functions. Also added a work around
7628 to a Win95 console bug. This was triggered by the password read stuff: the
7629 last character typed gets carried over to the next fread(). If you were
7630 generating a new cert request using 'req' for example then the last
7631 character of the passphrase would be CR which would then enter the first
7635 *) Added the new `Includes OpenSSL Cryptography Software' button as
7636 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7637 button and can be used by applications based on OpenSSL to show the
7638 relationship to the OpenSSL project.
7639 [Ralf S. Engelschall]
7641 *) Remove confusing variables in function signatures in files
7642 ssl/ssl_lib.c and ssl/ssl.h.
7643 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7645 *) Don't install bss_file.c under PREFIX/include/
7646 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7648 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7649 functions that return function pointers and has support for NT specific
7650 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7651 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7652 unsigned to signed types: this was killing the Win32 compile.
7655 *) Add new certificate file to stack functions,
7656 SSL_add_dir_cert_subjects_to_stack() and
7657 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7658 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7659 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7660 This means that Apache-SSL and similar packages don't have to mess around
7661 to add as many CAs as they want to the preferred list.
7664 *) Experiment with doxygen documentation. Currently only partially applied to
7666 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7667 openssl.doxy as the configuration file.
7670 *) Get rid of remaining C++-style comments which strict C compilers hate.
7671 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7673 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7674 compiled in by default: it has problems with large keys.
7677 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7678 DH private keys and/or callback functions which directly correspond to
7679 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7680 is needed for applications which have to configure certificates on a
7681 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7683 For the RSA certificate situation is makes no difference, but
7684 for the DSA certificate situation this fixes the "no shared cipher"
7685 problem where the OpenSSL cipher selection procedure failed because the
7686 temporary keys were not overtaken from the context and the API provided
7687 no way to reconfigure them.
7688 The new functions now let applications reconfigure the stuff and they
7689 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7690 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7691 non-public-API function ssl_cert_instantiate() is used as a helper
7692 function and also to reduce code redundancy inside ssl_rsa.c.
7693 [Ralf S. Engelschall]
7695 *) Move s_server -dcert and -dkey options out of the undocumented feature
7696 area because they are useful for the DSA situation and should be
7697 recognized by the users.
7698 [Ralf S. Engelschall]
7700 *) Fix the cipher decision scheme for export ciphers: the export bits are
7701 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7702 SSL_EXP_MASK. So, the original variable has to be used instead of the
7703 already masked variable.
7704 [Richard Levitte <levitte@stacken.kth.se>]
7706 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7707 [Richard Levitte <levitte@stacken.kth.se>]
7709 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7710 from `int' to `unsigned int' because it's a length and initialized by
7711 EVP_DigestFinal() which expects an `unsigned int *'.
7712 [Richard Levitte <levitte@stacken.kth.se>]
7714 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7715 script. Instead use the usual Shell->Perl transition trick.
7716 [Ralf S. Engelschall]
7718 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7719 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7720 -noout -modulus' as it's already the case for `openssl rsa -noout
7721 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7722 currently the public key is printed (a decision which was already done by
7723 `openssl dsa -modulus' in the past) which serves a similar purpose.
7724 Additionally the NO_RSA no longer completely removes the whole -modulus
7725 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7727 [Ralf S. Engelschall]
7729 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7730 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7731 [Arne Ansper <arne@ats.cyber.ee>]
7733 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7734 to be added. Now both 'req' and 'ca' can use new objects defined in the
7738 *) Add cool BIO that does syslog (or event log on NT).
7739 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7741 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7742 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7743 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7744 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7747 *) Add preliminary config info for new extension code.
7750 *) Make RSA_NO_PADDING really use no padding.
7751 [Ulf Moeller <ulf@fitug.de>]
7753 *) Generate errors when private/public key check is done.
7756 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7757 for some CRL extensions and new objects added.
7760 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7761 key usage extension and fuller support for authority key id.
7764 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7765 padding method for RSA, which is recommended for new applications in PKCS
7766 #1 v2.0 (RFC 2437, October 1998).
7767 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7768 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7769 against Bleichbacher's attack on RSA.
7770 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7773 *) Updates to the new SSL compression code
7774 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7776 *) Fix so that the version number in the master secret, when passed
7777 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7778 (because the server will not accept higher), that the version number
7779 is 0x03,0x01, not 0x03,0x00
7780 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7782 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7783 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7784 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7787 *) Support for RAW extensions where an arbitrary extension can be
7788 created by including its DER encoding. See apps/openssl.cnf for
7792 *) Make sure latest Perl versions don't interpret some generated C array
7793 code as Perl array code in the crypto/err/err_genc.pl script.
7794 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7796 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7797 not many people have the assembler. Various Win32 compilation fixes and
7798 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7802 *) Modify configure script 'Configure' to automatically create crypto/date.h
7803 file under Win32 and also build pem.h from pem.org. New script
7804 util/mkfiles.pl to create the MINFO file on environments that can't do a
7805 'make files': perl util/mkfiles.pl >MINFO should work.
7808 *) Major rework of DES function declarations, in the pursuit of correctness
7809 and purity. As a result, many evil casts evaporated, and some weirdness,
7810 too. You may find this causes warnings in your code. Zapping your evil
7811 casts will probably fix them. Mostly.
7814 *) Fix for a typo in asn1.h. Bug fix to object creation script
7815 obj_dat.pl. It considered a zero in an object definition to mean
7816 "end of object": none of the objects in objects.h have any zeros
7817 so it wasn't spotted.
7818 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7820 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7821 Masking (CBCM). In the absence of test vectors, the best I have been able
7822 to do is check that the decrypt undoes the encrypt, so far. Send me test
7823 vectors if you have them.
7826 *) Correct calculation of key length for export ciphers (too much space was
7827 allocated for null ciphers). This has not been tested!
7830 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7831 message is now correct (it understands "crypto" and "ssl" on its
7832 command line). There is also now an "update" option. This will update
7833 the util/ssleay.num and util/libeay.num files with any new functions.
7835 perl util/mkdef.pl crypto ssl update
7836 it will update them.
7839 *) Overhauled the Perl interface (perl/*):
7840 - ported BN stuff to OpenSSL's different BN library
7841 - made the perl/ source tree CVS-aware
7842 - renamed the package from SSLeay to OpenSSL (the files still contain
7843 their history because I've copied them in the repository)
7844 - removed obsolete files (the test scripts will be replaced
7845 by better Test::Harness variants in the future)
7846 [Ralf S. Engelschall]
7848 *) First cut for a very conservative source tree cleanup:
7849 1. merge various obsolete readme texts into doc/ssleay.txt
7850 where we collect the old documents and readme texts.
7851 2. remove the first part of files where I'm already sure that we no
7852 longer need them because of three reasons: either they are just temporary
7853 files which were left by Eric or they are preserved original files where
7854 I've verified that the diff is also available in the CVS via "cvs diff
7855 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7856 the crypto/md/ stuff).
7857 [Ralf S. Engelschall]
7859 *) More extension code. Incomplete support for subject and issuer alt
7860 name, issuer and authority key id. Change the i2v function parameters
7861 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7862 what that's for :-) Fix to ASN1 macro which messed up
7863 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7866 *) Preliminary support for ENUMERATED type. This is largely copied from the
7870 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7871 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7873 *) Make sure `make rehash' target really finds the `openssl' program.
7874 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7876 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7877 like to hear about it if this slows down other processors.
7880 *) Add CygWin32 platform information to Configure script.
7881 [Alan Batie <batie@aahz.jf.intel.com>]
7883 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7884 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7886 *) New program nseq to manipulate netscape certificate sequences
7889 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7893 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7894 but the BN code had some problems that would cause failures when
7895 doing certificate verification and some other functions.
7896 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7898 *) Add ASN1 and PEM code to support netscape certificate sequences.
7901 *) Add ASN1 and PEM code to support netscape certificate sequences.
7904 *) Add several PKIX and private extended key usage OIDs.
7907 *) Modify the 'ca' program to handle the new extension code. Modify
7908 openssl.cnf for new extension format, add comments.
7911 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7912 and add a sample to openssl.cnf so req -x509 now adds appropriate
7916 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7917 error code, add initial support to X509_print() and x509 application.
7920 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7921 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7922 stuff is currently isolated and isn't even compiled yet.
7925 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7926 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7927 Removed the versions check from X509 routines when loading extensions:
7928 this allows certain broken certificates that don't set the version
7929 properly to be processed.
7932 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7933 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7934 can still be regenerated with "make depend".
7937 *) Spelling mistake in C version of CAST-128.
7938 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7940 *) Changes to the error generation code. The perl script err-code.pl
7941 now reads in the old error codes and retains the old numbers, only
7942 adding new ones if necessary. It also only changes the .err files if new
7943 codes are added. The makefiles have been modified to only insert errors
7944 when needed (to avoid needlessly modifying header files). This is done
7945 by only inserting errors if the .err file is newer than the auto generated
7946 C file. To rebuild all the error codes from scratch (the old behaviour)
7947 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7948 or delete all the .err files.
7951 *) CAST-128 was incorrectly implemented for short keys. The C version has
7952 been fixed, but is untested. The assembler versions are also fixed, but
7953 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7954 to regenerate it if needed.
7955 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7956 Hagino <itojun@kame.net>]
7958 *) File was opened incorrectly in randfile.c.
7959 [Ulf Möller <ulf@fitug.de>]
7961 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7962 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7963 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7964 al: it's just almost always a UTCTime. Note this patch adds new error
7965 codes so do a "make errors" if there are problems.
7968 *) Correct Linux 1 recognition in config.
7969 [Ulf Möller <ulf@fitug.de>]
7971 *) Remove pointless MD5 hash when using DSA keys in ca.
7972 [Anonymous <nobody@replay.com>]
7974 *) Generate an error if given an empty string as a cert directory. Also
7975 generate an error if handed NULL (previously returned 0 to indicate an
7976 error, but didn't set one).
7977 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7979 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7982 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7983 parameters. This was causing a warning which killed off the Win32 compile.
7986 *) Remove C++ style comments from crypto/bn/bn_local.h.
7987 [Neil Costigan <neil.costigan@celocom.com>]
7989 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7990 based on a text string, looking up short and long names and finally
7991 "dot" format. The "dot" format stuff didn't work. Added new function
7992 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7993 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7994 OID is not part of the table.
7997 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7998 X509_LOOKUP_by_alias().
8001 *) Sort openssl functions by name.
8004 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8005 encryption from sample DSA keys (in case anyone is interested the password
8009 *) Make _all_ *_free functions accept a NULL pointer.
8010 [Frans Heymans <fheymans@isaserver.be>]
8012 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8014 [Anonymous <nobody@replay.com>]
8016 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8017 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8019 *) Don't blow it for numeric -newkey arguments to apps/req.
8020 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8022 *) Temp key "for export" tests were wrong in s3_srvr.c.
8023 [Anonymous <nobody@replay.com>]
8025 *) Add prototype for temp key callback functions
8026 SSL_CTX_set_tmp_{rsa,dh}_callback().
8029 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8030 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8033 *) X509_name_add_entry() freed the wrong thing after an error.
8034 [Arne Ansper <arne@ats.cyber.ee>]
8036 *) rsa_eay.c would attempt to free a NULL context.
8037 [Arne Ansper <arne@ats.cyber.ee>]
8039 *) BIO_s_socket() had a broken should_retry() on Windoze.
8040 [Arne Ansper <arne@ats.cyber.ee>]
8042 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8043 [Arne Ansper <arne@ats.cyber.ee>]
8045 *) Make sure the already existing X509_STORE->depth variable is initialized
8046 in X509_STORE_new(), but document the fact that this variable is still
8047 unused in the certificate verification process.
8048 [Ralf S. Engelschall]
8050 *) Fix the various library and apps files to free up pkeys obtained from
8051 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8054 *) Fix reference counting in X509_PUBKEY_get(). This makes
8055 demos/maurice/example2.c work, amongst others, probably.
8056 [Steve Henson and Ben Laurie]
8058 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8059 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8060 are no longer created. This way we have a single and consistent command
8061 line interface `openssl <command>', similar to `cvs <command>'.
8062 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8064 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8065 BIT STRING wrapper always have zero unused bits.
8068 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8071 *) Make the top-level INSTALL documentation easier to understand.
8074 *) Makefiles updated to exit if an error occurs in a sub-directory
8075 make (including if user presses ^C) [Paul Sutton]
8077 *) Make Montgomery context stuff explicit in RSA data structure.
8080 *) Fix build order of pem and err to allow for generated pem.h.
8083 *) Fix renumbering bug in X509_NAME_delete_entry().
8086 *) Enhanced the err-ins.pl script so it makes the error library number
8087 global and can add a library name. This is needed for external ASN1 and
8088 other error libraries.
8091 *) Fixed sk_insert which never worked properly.
8094 *) Fix ASN1 macros so they can handle indefinite length construted
8095 EXPLICIT tags. Some non standard certificates use these: they can now
8099 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8100 into a single doc/ssleay.txt bundle. This way the information is still
8101 preserved but no longer messes up this directory. Now it's new room for
8102 the new set of documenation files.
8103 [Ralf S. Engelschall]
8105 *) SETs were incorrectly DER encoded. This was a major pain, because they
8106 shared code with SEQUENCEs, which aren't coded the same. This means that
8107 almost everything to do with SETs or SEQUENCEs has either changed name or
8108 number of arguments.
8109 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8111 *) Fix test data to work with the above.
8114 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8115 was already fixed by Eric for 0.9.1 it seems.
8116 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8118 *) Autodetect FreeBSD3.
8121 *) Fix various bugs in Configure. This affects the following platforms:
8125 unixware-2.0-pentium
8129 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8130 before they are needed.
8133 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8137 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8139 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8140 changed SSLeay to OpenSSL in version strings.
8141 [Ralf S. Engelschall]
8143 *) Some fixups to the top-level documents.
8146 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8147 because the symlink to include/ was missing.
8148 [Ralf S. Engelschall]
8150 *) Incorporated the popular no-RSA/DSA-only patches
8151 which allow to compile a RSA-free SSLeay.
8152 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8154 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8155 when "ssleay" is still not found.
8156 [Ralf S. Engelschall]
8158 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8159 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8161 *) Updated the README file.
8162 [Ralf S. Engelschall]
8164 *) Added various .cvsignore files in the CVS repository subdirs
8165 to make a "cvs update" really silent.
8166 [Ralf S. Engelschall]
8168 *) Recompiled the error-definition header files and added
8169 missing symbols to the Win32 linker tables.
8170 [Ralf S. Engelschall]
8172 *) Cleaned up the top-level documents;
8173 o new files: CHANGES and LICENSE
8174 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8175 o merged COPYRIGHT into LICENSE
8176 o removed obsolete TODO file
8177 o renamed MICROSOFT to INSTALL.W32
8178 [Ralf S. Engelschall]
8180 *) Removed dummy files from the 0.9.1b source tree:
8181 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8182 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8183 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8184 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8185 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8186 [Ralf S. Engelschall]
8188 *) Added various platform portability fixes.
8191 *) The Genesis of the OpenSSL rpject:
8192 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8193 Young and Tim J. Hudson created while they were working for C2Net until
8195 [The OpenSSL Project]
8198 Changes between 0.9.0b and 0.9.1b [not released]
8200 *) Updated a few CA certificates under certs/
8203 *) Changed some BIGNUM api stuff.
8206 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8207 DGUX x86, Linux Alpha, etc.
8210 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8211 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8215 *) Add -strparse option to asn1pars program which parses nested
8217 [Dr Stephen Henson <shenson@bigfoot.com>]
8219 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8222 *) DSA fix for "ca" program.
8225 *) Added "-genkey" option to "dsaparam" program.
8228 *) Added RIPE MD160 (rmd160) message digest.
8231 *) Added -a (all) option to "ssleay version" command.
8234 *) Added PLATFORM define which is the id given to Configure.
8237 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8240 *) Extended the ASN.1 parser routines.
8243 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8246 *) Added a BN_CTX to the BN library.
8249 *) Fixed the weak key values in DES library
8252 *) Changed API in EVP library for cipher aliases.
8255 *) Added support for RC2/64bit cipher.
8258 *) Converted the lhash library to the crypto/mem.c functions.
8261 *) Added more recognized ASN.1 object ids.
8264 *) Added more RSA padding checks for SSL/TLS.
8267 *) Added BIO proxy/filter functionality.
8270 *) Added extra_certs to SSL_CTX which can be used
8271 send extra CA certificates to the client in the CA cert chain sending
8272 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8275 *) Now Fortezza is denied in the authentication phase because
8276 this is key exchange mechanism is not supported by SSLeay at all.
8279 *) Additional PKCS1 checks.
8282 *) Support the string "TLSv1" for all TLS v1 ciphers.
8285 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8286 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8289 *) Fixed a few memory leaks.
8292 *) Fixed various code and comment typos.
8295 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8296 bytes sent in the client random.
8297 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob