5 Changes between 0.9.8h and 0.9.8i [xx XXX xxxx]
7 *) The fix in 0.9.8c that supposedly got rid of unsafe
8 double-checked locking was incomplete for RSA blinding,
9 addressing just one layer of what turns out to have been
10 doubly unsafe triple-checked locking.
12 So now fix this for real by retiring the MONT_HELPER macro
13 in crypto/rsa/rsa_eay.c.
15 [Bodo Moeller; problem pointed out by Marius Schilder]
17 *) Various precautionary measures:
19 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
21 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
22 (NB: This would require knowledge of the secret session ticket key
23 to exploit, in which case you'd be SOL either way.)
25 - Change bn_nist.c so that it will properly handle input BIGNUMs
26 outside the expected range.
28 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
31 [Neel Mehta, Bodo Moeller]
33 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
36 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
39 *) Expand ENGINE to support engine supplied SSL client certificate functions.
41 This work was sponsored by Logica.
44 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
45 keystores. Support for SSL/TLS client authentication too.
46 Not compiled unless enable-capieng specified to Configure.
48 This work was sponsored by Logica.
51 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
52 the load fails. Useful for distros.
53 [Ben Laurie and the FreeBSD team]
55 Changes between 0.9.8g and 0.9.8h [28 May 2008]
57 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
58 handshake which could lead to a cilent crash as found using the
59 Codenomicon TLS test suite (CVE-2008-1672)
60 [Steve Henson, Mark Cox]
62 *) Fix double free in TLS server name extensions which could lead to
63 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
66 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
68 Clear the error queue to ensure that error entries left from
69 older function calls do not interfere with the correct operation.
70 [Lutz Jaenicke, Erik de Castro Lopo]
72 *) Remove root CA certificates of commercial CAs:
74 The OpenSSL project does not recommend any specific CA and does not
75 have any policy with respect to including or excluding any CA.
76 Therefore it does not make any sense to ship an arbitrary selection
77 of root CA certificates with the OpenSSL software.
80 *) RSA OAEP patches to fix two separate invalid memory reads.
81 The first one involves inputs when 'lzero' is greater than
82 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
83 before the beginning of from). The second one involves inputs where
84 the 'db' section contains nothing but zeroes (there is a one-byte
85 invalid read after the end of 'db').
86 [Ivan Nestlerode <inestlerode@us.ibm.com>]
88 *) Partial backport from 0.9.9-dev:
90 Introduce bn_mul_mont (dedicated Montgomery multiplication
91 procedure) as a candidate for BIGNUM assembler implementation.
92 While 0.9.9-dev uses assembler for various architectures, only
93 x86_64 is available by default here in the 0.9.8 branch, and
94 32-bit x86 is available through a compile-time setting.
96 To try the 32-bit x86 assembler implementation, use Configure
97 option "enable-montasm" (which exists only for this backport).
99 As "enable-montasm" for 32-bit x86 disclaims code stability
100 anyway, in this constellation we activate additional code
101 backported from 0.9.9-dev for further performance improvements,
102 namely BN_from_montgomery_word. (To enable this otherwise,
103 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
105 [Andy Polyakov (backport partially by Bodo Moeller)]
107 *) Add TLS session ticket callback. This allows an application to set
108 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
109 values. This is useful for key rollover for example where several key
110 sets may exist with different names.
113 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
114 This was broken until now in 0.9.8 releases, such that the only way
115 a registered ENGINE could be used (assuming it initialises
116 successfully on the host) was to explicitly set it as the default
117 for the relevant algorithms. This is in contradiction with 0.9.7
118 behaviour and the documentation. With this fix, when an ENGINE is
119 registered into a given algorithm's table of implementations, the
120 'uptodate' flag is reset so that auto-discovery will be used next
121 time a new context for that algorithm attempts to select an
123 [Ian Lister (tweaked by Geoff Thorpe)]
125 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
126 implemention in the following ways:
128 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
131 Lack of BER streaming support means one pass streaming processing is
132 only supported if data is detached: setting the streaming flag is
133 ignored for embedded content.
135 CMS support is disabled by default and must be explicitly enabled
136 with the enable-cms configuration option.
139 *) Update the GMP engine glue to do direct copies between BIGNUM and
140 mpz_t when openssl and GMP use the same limb size. Otherwise the
141 existing "conversion via a text string export" trick is still used.
142 [Paul Sheer <paulsheer@gmail.com>]
144 *) Zlib compression BIO. This is a filter BIO which compressed and
145 uncompresses any data passed through it.
148 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
149 RFC3394 compatible AES key wrapping.
152 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
153 sets string data without copying. X509_ALGOR_set0() and
154 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
155 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
156 from an X509_ATTRIBUTE structure optionally checking it occurs only
157 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
161 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
162 to get the expected BN_FLG_CONSTTIME behavior.
163 [Bodo Moeller (Google)]
167 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
168 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
169 - added some more tests to do_tests.pl
170 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
171 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
172 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
173 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
174 - various changes to netware.pl to enable gcc-cross builds on Win32
176 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
177 - various changes to fix missing prototype warnings
178 - fixed x86nasm.pl to create correct asm files for NASM COFF output
179 - added AES, WHIRLPOOL and CPUID assembler code to build files
180 - added missing AES assembler make rules to mk1mf.pl
181 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
182 [Guenter Knauf <eflash@gmx.net>]
184 *) Implement certificate status request TLS extension defined in RFC3546.
185 A client can set the appropriate parameters and receive the encoded
186 OCSP response via a callback. A server can query the supplied parameters
187 and set the encoded OCSP response in the callback. Add simplified examples
188 to s_client and s_server.
191 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
194 + Binary incompatibility of ssl_ctx_st structure
195 + DTLS interoperation with non-compliant servers
196 + Don't call get_session_cb() without proposed session
197 + Fix ia64 assembler code
198 [Andy Polyakov, Steve Henson]
200 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
202 *) DTLS Handshake overhaul. There were longstanding issues with
203 OpenSSL DTLS implementation, which were making it impossible for
204 RFC 4347 compliant client to communicate with OpenSSL server.
205 Unfortunately just fixing these incompatibilities would "cut off"
206 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
207 server keeps tolerating non RFC compliant syntax. The opposite is
208 not true, 0.9.8f client can not communicate with earlier server.
209 This update even addresses CVE-2007-4995.
212 *) Changes to avoid need for function casts in OpenSSL: some compilers
213 (gcc 4.2 and later) reject their use.
214 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
217 *) Add RFC4507 support to OpenSSL. This includes the corrections in
218 RFC4507bis. The encrypted ticket format is an encrypted encoded
219 SSL_SESSION structure, that way new session features are automatically
222 If a client application caches session in an SSL_SESSION structure
223 support is transparent because tickets are now stored in the encoded
226 The SSL_CTX structure automatically generates keys for ticket
227 protection in servers so again support should be possible
228 with no application modification.
230 If a client or server wishes to disable RFC4507 support then the option
231 SSL_OP_NO_TICKET can be set.
233 Add a TLS extension debugging callback to allow the contents of any client
234 or server extensions to be examined.
236 This work was sponsored by Google.
239 *) Add initial support for TLS extensions, specifically for the server_name
240 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
241 have new members for a host name. The SSL data structure has an
242 additional member SSL_CTX *initial_ctx so that new sessions can be
243 stored in that context to allow for session resumption, even after the
244 SSL has been switched to a new SSL_CTX in reaction to a client's
245 server_name extension.
247 New functions (subject to change):
250 SSL_get_servername_type()
253 New CTRL codes and macros (subject to change):
255 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
256 - SSL_CTX_set_tlsext_servername_callback()
257 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
258 - SSL_CTX_set_tlsext_servername_arg()
259 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
261 openssl s_client has a new '-servername ...' option.
263 openssl s_server has new options '-servername_host ...', '-cert2 ...',
264 '-key2 ...', '-servername_fatal' (subject to change). This allows
265 testing the HostName extension for a specific single host name ('-cert'
266 and '-key' remain fallbacks for handshakes without HostName
267 negotiation). If the unrecogninzed_name alert has to be sent, this by
268 default is a warning; it becomes fatal with the '-servername_fatal'
271 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
273 *) Add AES and SSE2 assembly language support to VC++ build.
276 *) Mitigate attack on final subtraction in Montgomery reduction.
279 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
280 (which previously caused an internal error).
283 *) Squeeze another 10% out of IGE mode when in != out.
286 *) AES IGE mode speedup.
287 [Dean Gaudet (Google)]
289 *) Add the Korean symmetric 128-bit cipher SEED (see
290 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
291 add SEED ciphersuites from RFC 4162:
293 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
294 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
295 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
296 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
298 To minimize changes between patchlevels in the OpenSSL 0.9.8
299 series, SEED remains excluded from compilation unless OpenSSL
300 is configured with 'enable-seed'.
303 *) Mitigate branch prediction attacks, which can be practical if a
304 single processor is shared, allowing a spy process to extract
305 information. For detailed background information, see
306 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
307 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
308 and Necessary Software Countermeasures"). The core of the change
309 are new versions BN_div_no_branch() and
310 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
311 respectively, which are slower, but avoid the security-relevant
312 conditional branches. These are automatically called by BN_div()
313 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
314 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
315 remove a conditional branch.
317 BN_FLG_CONSTTIME is the new name for the previous
318 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
319 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
320 in the exponent causes BN_mod_exp_mont() to use the alternative
321 implementation in BN_mod_exp_mont_consttime().) The old name
322 remains as a deprecated alias.
324 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
325 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
326 constant-time implementations for more than just exponentiation.
327 Here too the old name is kept as a deprecated alias.
329 BN_BLINDING_new() will now use BN_dup() for the modulus so that
330 the BN_BLINDING structure gets an independent copy of the
331 modulus. This means that the previous "BIGNUM *m" argument to
332 BN_BLINDING_new() and to BN_BLINDING_create_param() now
333 essentially becomes "const BIGNUM *m", although we can't actually
334 change this in the header file before 0.9.9. It allows
335 RSA_setup_blinding() to use BN_with_flags() on the modulus to
336 enable BN_FLG_CONSTTIME.
338 [Matthew D Wood (Intel Corp)]
340 *) In the SSL/TLS server implementation, be strict about session ID
341 context matching (which matters if an application uses a single
342 external cache for different purposes). Previously,
343 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
344 set. This did ensure strict client verification, but meant that,
345 with applications using a single external cache for quite
346 different requirements, clients could circumvent ciphersuite
347 restrictions for a given session ID context by starting a session
348 in a different context.
351 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
352 a ciphersuite string such as "DEFAULT:RSA" cannot enable
353 authentication-only ciphersuites.
356 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
357 not complete and could lead to a possible single byte overflow
358 (CVE-2007-5135) [Ben Laurie]
360 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
362 *) Since AES128 and AES256 (and similarly Camellia128 and
363 Camellia256) share a single mask bit in the logic of
364 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
365 kludge to work properly if AES128 is available and AES256 isn't
366 (or if Camellia128 is available and Camellia256 isn't).
369 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
370 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
371 When a point or a seed is encoded in a BIT STRING, we need to
372 prevent the removal of trailing zero bits to get the proper DER
373 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
374 of a NamedBitList, for which trailing 0 bits need to be removed.)
377 *) Have SSL/TLS server implementation tolerate "mismatched" record
378 protocol version while receiving ClientHello even if the
379 ClientHello is fragmented. (The server can't insist on the
380 particular protocol version it has chosen before the ServerHello
381 message has informed the client about his choice.)
384 *) Add RFC 3779 support.
385 [Rob Austein for ARIN, Ben Laurie]
387 *) Load error codes if they are not already present instead of using a
388 static variable. This allows them to be cleanly unloaded and reloaded.
389 Improve header file function name parsing.
392 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
393 or CAPABILITY handshake as required by RFCs.
396 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
398 *) Introduce limits to prevent malicious keys being able to
399 cause a denial of service. (CVE-2006-2940)
400 [Steve Henson, Bodo Moeller]
402 *) Fix ASN.1 parsing of certain invalid structures that can result
403 in a denial of service. (CVE-2006-2937) [Steve Henson]
405 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
406 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
408 *) Fix SSL client code which could crash if connecting to a
409 malicious SSLv2 server. (CVE-2006-4343)
410 [Tavis Ormandy and Will Drewry, Google Security Team]
412 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
413 match only those. Before that, "AES256-SHA" would be interpreted
414 as a pattern and match "AES128-SHA" too (since AES128-SHA got
415 the same strength classification in 0.9.7h) as we currently only
416 have a single AES bit in the ciphersuite description bitmap.
417 That change, however, also applied to ciphersuite strings such as
418 "RC4-MD5" that intentionally matched multiple ciphersuites --
419 namely, SSL 2.0 ciphersuites in addition to the more common ones
420 from SSL 3.0/TLS 1.0.
422 So we change the selection algorithm again: Naming an explicit
423 ciphersuite selects this one ciphersuite, and any other similar
424 ciphersuite (same bitmap) from *other* protocol versions.
425 Thus, "RC4-MD5" again will properly select both the SSL 2.0
426 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
428 Since SSL 2.0 does not have any ciphersuites for which the
429 128/256 bit distinction would be relevant, this works for now.
430 The proper fix will be to use different bits for AES128 and
431 AES256, which would have avoided the problems from the beginning;
432 however, bits are scarce, so we can only do this in a new release
433 (not just a patchlevel) when we can change the SSL_CIPHER
434 definition to split the single 'unsigned long mask' bitmap into
435 multiple values to extend the available space.
439 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
441 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
442 (CVE-2006-4339) [Ben Laurie and Google Security Team]
444 *) Add AES IGE and biIGE modes.
447 *) Change the Unix randomness entropy gathering to use poll() when
448 possible instead of select(), since the latter has some
449 undesirable limitations.
450 [Darryl Miles via Richard Levitte and Bodo Moeller]
452 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
453 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
454 cannot be implicitly activated as part of, e.g., the "AES" alias.
455 However, please upgrade to OpenSSL 0.9.9[-dev] for
456 non-experimental use of the ECC ciphersuites to get TLS extension
457 support, which is required for curve and point format negotiation
458 to avoid potential handshake problems.
461 *) Disable rogue ciphersuites:
463 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
464 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
465 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
467 The latter two were purportedly from
468 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
471 Also deactivate the remaining ciphersuites from
472 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
473 unofficial, and the ID has long expired.
476 *) Fix RSA blinding Heisenbug (problems sometimes occured on
477 dual-core machines) and other potential thread-safety issues.
480 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
481 versions), which is now available for royalty-free use
482 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
483 Also, add Camellia TLS ciphersuites from RFC 4132.
485 To minimize changes between patchlevels in the OpenSSL 0.9.8
486 series, Camellia remains excluded from compilation unless OpenSSL
487 is configured with 'enable-camellia'.
490 *) Disable the padding bug check when compression is in use. The padding
491 bug check assumes the first packet is of even length, this is not
492 necessarily true if compresssion is enabled and can result in false
493 positives causing handshake failure. The actual bug test is ancient
494 code so it is hoped that implementations will either have fixed it by
495 now or any which still have the bug do not support compression.
498 Changes between 0.9.8a and 0.9.8b [04 May 2006]
500 *) When applying a cipher rule check to see if string match is an explicit
501 cipher suite and only match that one cipher suite if it is.
504 *) Link in manifests for VC++ if needed.
505 [Austin Ziegler <halostatue@gmail.com>]
507 *) Update support for ECC-based TLS ciphersuites according to
508 draft-ietf-tls-ecc-12.txt with proposed changes (but without
509 TLS extensions, which are supported starting with the 0.9.9
510 branch, not in the OpenSSL 0.9.8 branch).
513 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
514 opaque EVP_CIPHER_CTX handling.
517 *) Fixes and enhancements to zlib compression code. We now only use
518 "zlib1.dll" and use the default __cdecl calling convention on Win32
519 to conform with the standards mentioned here:
520 http://www.zlib.net/DLL_FAQ.txt
521 Static zlib linking now works on Windows and the new --with-zlib-include
522 --with-zlib-lib options to Configure can be used to supply the location
523 of the headers and library. Gracefully handle case where zlib library
527 *) Several fixes and enhancements to the OID generation code. The old code
528 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
529 handle numbers larger than ULONG_MAX, truncated printing and had a
530 non standard OBJ_obj2txt() behaviour.
533 *) Add support for building of engines under engine/ as shared libraries
534 under VC++ build system.
537 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
538 Hopefully, we will not see any false combination of paths any more.
541 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
543 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
544 (part of SSL_OP_ALL). This option used to disable the
545 countermeasure against man-in-the-middle protocol-version
546 rollback in the SSL 2.0 server implementation, which is a bad
547 idea. (CVE-2005-2969)
549 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
550 for Information Security, National Institute of Advanced Industrial
551 Science and Technology [AIST], Japan)]
553 *) Add two function to clear and return the verify parameter flags.
556 *) Keep cipherlists sorted in the source instead of sorting them at
557 runtime, thus removing the need for a lock.
560 *) Avoid some small subgroup attacks in Diffie-Hellman.
561 [Nick Mathewson and Ben Laurie]
563 *) Add functions for well-known primes.
566 *) Extended Windows CE support.
567 [Satoshi Nakamura and Andy Polyakov]
569 *) Initialize SSL_METHOD structures at compile time instead of during
570 runtime, thus removing the need for a lock.
573 *) Make PKCS7_decrypt() work even if no certificate is supplied by
574 attempting to decrypt each encrypted key in turn. Add support to
578 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
580 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
583 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
586 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
587 key into the same file any more.
590 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
593 *) Add -utf8 command line and config file option to 'ca'.
594 [Stefan <stf@udoma.org]
596 *) Removed the macro des_crypt(), as it seems to conflict with some
597 libraries. Use DES_crypt().
600 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
601 involves renaming the source and generated shared-libs for
602 both. The engines will accept the corrected or legacy ids
603 ('ncipher' and '4758_cca' respectively) when binding. NB,
604 this only applies when building 'shared'.
605 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
607 *) Add attribute functions to EVP_PKEY structure. Modify
608 PKCS12_create() to recognize a CSP name attribute and
609 use it. Make -CSP option work again in pkcs12 utility.
612 *) Add new functionality to the bn blinding code:
613 - automatic re-creation of the BN_BLINDING parameters after
614 a fixed number of uses (currently 32)
615 - add new function for parameter creation
616 - introduce flags to control the update behaviour of the
617 BN_BLINDING parameters
618 - hide BN_BLINDING structure
619 Add a second BN_BLINDING slot to the RSA structure to improve
620 performance when a single RSA object is shared among several
624 *) Add support for DTLS.
625 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
627 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
628 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
631 *) Remove buggy and incompletet DH cert support from
632 ssl/ssl_rsa.c and ssl/s3_both.c
635 *) Use SHA-1 instead of MD5 as the default digest algorithm for
636 the apps/openssl applications.
639 *) Compile clean with "-Wall -Wmissing-prototypes
640 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
641 DEBUG_SAFESTACK must also be set.
644 *) Change ./Configure so that certain algorithms can be disabled by default.
645 The new counterpiece to "no-xxx" is "enable-xxx".
647 The patented RC5 and MDC2 algorithms will now be disabled unless
648 "enable-rc5" and "enable-mdc2", respectively, are specified.
650 (IDEA remains enabled despite being patented. This is because IDEA
651 is frequently required for interoperability, and there is no license
652 fee for non-commercial use. As before, "no-idea" can be used to
653 avoid this algorithm.)
657 *) Add processing of proxy certificates (see RFC 3820). This work was
658 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
659 EGEE (Enabling Grids for E-science in Europe).
662 *) RC4 performance overhaul on modern architectures/implementations, such
663 as Intel P4, IA-64 and AMD64.
666 *) New utility extract-section.pl. This can be used specify an alternative
667 section number in a pod file instead of having to treat each file as
668 a separate case in Makefile. This can be done by adding two lines to the
671 =for comment openssl_section:XXX
673 The blank line is mandatory.
677 *) New arguments -certform, -keyform and -pass for s_client and s_server
678 to allow alternative format key and certificate files and passphrase
682 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
683 update associated structures and add various utility functions.
685 Add new policy related verify parameters, include policy checking in
686 standard verify code. Enhance 'smime' application with extra parameters
687 to support policy checking and print out.
690 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
691 Nehemiah processors. These extensions support AES encryption in hardware
692 as well as RNG (though RNG support is currently disabled).
693 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
695 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
698 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
699 [Andy Polyakov and a number of other people]
701 *) Improved PowerPC platform support. Most notably BIGNUM assembler
702 implementation contributed by IBM.
703 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
705 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
706 exponent rather than 'unsigned long'. There is a corresponding change to
707 the new 'rsa_keygen' element of the RSA_METHOD structure.
708 [Jelte Jansen, Geoff Thorpe]
710 *) Functionality for creating the initial serial number file is now
711 moved from CA.pl to the 'ca' utility with a new option -create_serial.
713 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
714 number file to 1, which is bound to cause problems. To avoid
715 the problems while respecting compatibility between different 0.9.7
716 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
717 CA.pl for serial number initialization. With the new release 0.9.8,
718 we can fix the problem directly in the 'ca' utility.)
721 *) Reduced header interdepencies by declaring more opaque objects in
722 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
723 give fewer recursive includes, which could break lazy source code - so
724 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
725 developers should define this symbol when building and using openssl to
726 ensure they track the recommended behaviour, interfaces, [etc], but
727 backwards-compatible behaviour prevails when this isn't defined.
730 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
733 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
734 This will generate a random key of the appropriate length based on the
735 cipher context. The EVP_CIPHER can provide its own random key generation
736 routine to support keys of a specific form. This is used in the des and
737 3des routines to generate a key of the correct parity. Update S/MIME
738 code to use new functions and hence generate correct parity DES keys.
739 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
740 valid (weak or incorrect parity).
743 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
744 as looking them up. This is useful when the verified structure may contain
745 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
746 present unless the new PKCS7_NO_CRL flag is asserted.
749 *) Extend ASN1 oid configuration module. It now additionally accepts the
752 shortName = some long name, 1.2.3.4
755 *) Reimplemented the BN_CTX implementation. There is now no more static
756 limitation on the number of variables it can handle nor the depth of the
757 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
758 information can now expand as required, and rather than having a single
759 static array of bignums, BN_CTX now uses a linked-list of such arrays
760 allowing it to expand on demand whilst maintaining the usefulness of
764 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
765 to allow all RSA operations to function using a single BN_CTX.
768 *) Preliminary support for certificate policy evaluation and checking. This
769 is initially intended to pass the tests outlined in "Conformance Testing
770 of Relying Party Client Certificate Path Processing Logic" v1.07.
773 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
774 remained unused and not that useful. A variety of other little bignum
775 tweaks and fixes have also been made continuing on from the audit (see
779 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
780 associated ASN1, EVP and SSL functions and old ASN1 macros.
783 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
784 and this should never fail. So the return value from the use of
785 BN_set_word() (which can fail due to needless expansion) is now deprecated;
786 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
789 *) BN_CTX_get() should return zero-valued bignums, providing the same
790 initialised value as BN_new().
791 [Geoff Thorpe, suggested by Ulf Möller]
793 *) Support for inhibitAnyPolicy certificate extension.
796 *) An audit of the BIGNUM code is underway, for which debugging code is
797 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
798 is considered valid when processing BIGNUMs, and causes execution to
799 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
800 further steps are taken to deliberately pollute unused data in BIGNUM
801 structures to try and expose faulty code further on. For now, openssl will
802 (in its default mode of operation) continue to tolerate the inconsistent
803 forms that it has tolerated in the past, but authors and packagers should
804 consider trying openssl and their own applications when compiled with
805 these debugging symbols defined. It will help highlight potential bugs in
806 their own code, and will improve the test coverage for OpenSSL itself. At
807 some point, these tighter rules will become openssl's default to improve
808 maintainability, though the assert()s and other overheads will remain only
809 in debugging configurations. See bn.h for more details.
810 [Geoff Thorpe, Nils Larsch, Ulf Möller]
812 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
813 that can only be obtained through BN_CTX_new() (which implicitly
814 initialises it). The presence of this function only made it possible
815 to overwrite an existing structure (and cause memory leaks).
818 *) Because of the callback-based approach for implementing LHASH as a
819 template type, lh_insert() adds opaque objects to hash-tables and
820 lh_doall() or lh_doall_arg() are typically used with a destructor callback
821 to clean up those corresponding objects before destroying the hash table
822 (and losing the object pointers). So some over-zealous constifications in
823 LHASH have been relaxed so that lh_insert() does not take (nor store) the
824 objects as "const" and the lh_doall[_arg] callback wrappers are not
825 prototyped to have "const" restrictions on the object pointers they are
826 given (and so aren't required to cast them away any more).
829 *) The tmdiff.h API was so ugly and minimal that our own timing utility
830 (speed) prefers to use its own implementation. The two implementations
831 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
832 its object type properly exposed (MS_TM) instead of casting to/from "char
833 *". This may still change yet if someone realises MS_TM and "ms_time_***"
834 aren't necessarily the greatest nomenclatures - but this is what was used
835 internally to the implementation so I've used that for now.
838 *) Ensure that deprecated functions do not get compiled when
839 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
840 the self-tests were still using deprecated key-generation functions so
841 these have been updated also.
844 *) Reorganise PKCS#7 code to separate the digest location functionality
845 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
846 New function PKCS7_set_digest() to set the digest type for PKCS#7
847 digestedData type. Add additional code to correctly generate the
848 digestedData type and add support for this type in PKCS7 initialization
852 *) New function PKCS7_set0_type_other() this initializes a PKCS7
853 structure of type "other".
856 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
857 sure the loop does correctly stop and breaking ("division by zero")
858 modulus operations are not performed. The (pre-generated) prime
859 table crypto/bn/bn_prime.h was already correct, but it could not be
860 re-generated on some platforms because of the "division by zero"
861 situation in the script.
862 [Ralf S. Engelschall]
864 *) Update support for ECC-based TLS ciphersuites according to
865 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
866 SHA-1 now is only used for "small" curves (where the
867 representation of a field element takes up to 24 bytes); for
868 larger curves, the field element resulting from ECDH is directly
869 used as premaster secret.
870 [Douglas Stebila (Sun Microsystems Laboratories)]
872 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
873 curve secp160r1 to the tests.
874 [Douglas Stebila (Sun Microsystems Laboratories)]
876 *) Add the possibility to load symbols globally with DSO.
877 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
879 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
880 control of the error stack.
883 *) Add support for STORE in ENGINE.
886 *) Add the STORE type. The intention is to provide a common interface
887 to certificate and key stores, be they simple file-based stores, or
888 HSM-type store, or LDAP stores, or...
889 NOTE: The code is currently UNTESTED and isn't really used anywhere.
892 *) Add a generic structure called OPENSSL_ITEM. This can be used to
893 pass a list of arguments to any function as well as provide a way
894 for a function to pass data back to the caller.
897 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
898 works like BUF_strdup() but can be used to duplicate a portion of
899 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
903 *) Add the function sk_find_ex() which works like sk_find(), but will
904 return an index to an element even if an exact match couldn't be
905 found. The index is guaranteed to point at the element where the
906 searched-for key would be inserted to preserve sorting order.
909 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
910 takes an extra flags argument for optional functionality. Currently,
911 the following flags are defined:
913 OBJ_BSEARCH_VALUE_ON_NOMATCH
914 This one gets OBJ_bsearch_ex() to return a pointer to the first
915 element where the comparing function returns a negative or zero
918 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
919 This one gets OBJ_bsearch_ex() to return a pointer to the first
920 element where the comparing function returns zero. This is useful
921 if there are more than one element where the comparing function
925 *) Make it possible to create self-signed certificates with 'openssl ca'
926 in such a way that the self-signed certificate becomes part of the
927 CA database and uses the same mechanisms for serial number generation
928 as all other certificate signing. The new flag '-selfsign' enables
929 this functionality. Adapt CA.sh and CA.pl.in.
932 *) Add functionality to check the public key of a certificate request
933 against a given private. This is useful to check that a certificate
934 request can be signed by that key (self-signing).
937 *) Make it possible to have multiple active certificates with the same
938 subject in the CA index file. This is done only if the keyword
939 'unique_subject' is set to 'no' in the main CA section (default
940 if 'CA_default') of the configuration file. The value is saved
941 with the database itself in a separate index attribute file,
942 named like the index file with '.attr' appended to the name.
945 *) Generate muti valued AVAs using '+' notation in config files for
949 *) Support for nameConstraints certificate extension.
952 *) Support for policyConstraints certificate extension.
955 *) Support for policyMappings certificate extension.
958 *) Make sure the default DSA_METHOD implementation only uses its
959 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
960 and change its own handlers to be NULL so as to remove unnecessary
961 indirection. This lets alternative implementations fallback to the
962 default implementation more easily.
965 *) Support for directoryName in GeneralName related extensions
969 *) Make it possible to link applications using Makefile.shared.
970 Make that possible even when linking against static libraries!
973 *) Support for single pass processing for S/MIME signing. This now
974 means that S/MIME signing can be done from a pipe, in addition
975 cleartext signing (multipart/signed type) is effectively streaming
976 and the signed data does not need to be all held in memory.
978 This is done with a new flag PKCS7_STREAM. When this flag is set
979 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
980 is done after the data is output (and digests calculated) in
984 *) Add full support for -rpath/-R, both in shared libraries and
985 applications, at least on the platforms where it's known how
989 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
990 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
991 will now compute a table of multiples of the generator that
992 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
993 faster (notably in the case of a single point multiplication,
995 [Nils Larsch, Bodo Moeller]
997 *) IPv6 support for certificate extensions. The various extensions
998 which use the IP:a.b.c.d can now take IPv6 addresses using the
999 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1003 *) Added an ENGINE that implements RSA by performing private key
1004 exponentiations with the GMP library. The conversions to and from
1005 GMP's mpz_t format aren't optimised nor are any montgomery forms
1006 cached, and on x86 it appears OpenSSL's own performance has caught up.
1007 However there are likely to be other architectures where GMP could
1008 provide a boost. This ENGINE is not built in by default, but it can be
1009 specified at Configure time and should be accompanied by the necessary
1010 linker additions, eg;
1011 ./config -DOPENSSL_USE_GMP -lgmp
1014 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1015 testing availability of engines with "-t" - the old behaviour is
1016 produced by increasing the feature's verbosity with "-tt".
1019 *) ECDSA routines: under certain error conditions uninitialized BN objects
1020 could be freed. Solution: make sure initialization is performed early
1021 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1025 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1026 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1027 software implementations. For DSA and DH, parameter generation can
1028 also be overriden by providing the appropriate method callbacks.
1031 *) Change the "progress" mechanism used in key-generation and
1032 primality testing to functions that take a new BN_GENCB pointer in
1033 place of callback/argument pairs. The new API functions have "_ex"
1034 postfixes and the older functions are reimplemented as wrappers for
1035 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1036 declarations of the old functions to help (graceful) attempts to
1037 migrate to the new functions. Also, the new key-generation API
1038 functions operate on a caller-supplied key-structure and return
1039 success/failure rather than returning a key or NULL - this is to
1040 help make "keygen" another member function of RSA_METHOD etc.
1042 Example for using the new callback interface:
1044 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1048 BN_GENCB_set(&my_cb, my_callback, my_arg);
1050 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1051 /* For the meaning of a, b in calls to my_callback(), see the
1052 * documentation of the function that calls the callback.
1053 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1054 * my_callback should return 1 if it wants BN_is_prime_ex()
1055 * to continue, or 0 to stop.
1060 *) Change the ZLIB compression method to be stateful, and make it
1061 available to TLS with the number defined in
1062 draft-ietf-tls-compression-04.txt.
1065 *) Add the ASN.1 structures and functions for CertificatePair, which
1066 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1068 CertificatePair ::= SEQUENCE {
1069 forward [0] Certificate OPTIONAL,
1070 reverse [1] Certificate OPTIONAL,
1071 -- at least one of the pair shall be present -- }
1073 Also implement the PEM functions to read and write certificate
1074 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1076 This needed to be defined, mostly for the sake of the LDAP
1077 attribute crossCertificatePair, but may prove useful elsewhere as
1081 *) Make it possible to inhibit symlinking of shared libraries in
1082 Makefile.shared, for Cygwin's sake.
1085 *) Extend the BIGNUM API by creating a function
1086 void BN_set_negative(BIGNUM *a, int neg);
1087 and a macro that behave like
1088 int BN_is_negative(const BIGNUM *a);
1090 to avoid the need to access 'a->neg' directly in applications.
1093 *) Implement fast modular reduction for pseudo-Mersenne primes
1094 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1095 EC_GROUP_new_curve_GFp() will now automatically use this
1097 [Nils Larsch <nla@trustcenter.de>]
1099 *) Add new lock type (CRYPTO_LOCK_BN).
1102 *) Change the ENGINE framework to automatically load engines
1103 dynamically from specific directories unless they could be
1104 found to already be built in or loaded. Move all the
1105 current engines except for the cryptodev one to a new
1107 The engines in engines/ are built as shared libraries if
1108 the "shared" options was given to ./Configure or ./config.
1109 Otherwise, they are inserted in libcrypto.a.
1110 /usr/local/ssl/engines is the default directory for dynamic
1111 engines, but that can be overriden at configure time through
1112 the usual use of --prefix and/or --openssldir, and at run
1113 time with the environment variable OPENSSL_ENGINES.
1114 [Geoff Thorpe and Richard Levitte]
1116 *) Add Makefile.shared, a helper makefile to build shared
1117 libraries. Addapt Makefile.org.
1120 *) Add version info to Win32 DLLs.
1121 [Peter 'Luna' Runestig" <peter@runestig.com>]
1123 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1124 can be added using this API to created arbitrary PKCS#12
1125 files while avoiding the low level API.
1127 New options to PKCS12_create(), key or cert can be NULL and
1128 will then be omitted from the output file. The encryption
1129 algorithm NIDs can be set to -1 for no encryption, the mac
1130 iteration count can be set to 0 to omit the mac.
1132 Enhance pkcs12 utility by making the -nokeys and -nocerts
1133 options work when creating a PKCS#12 file. New option -nomac
1134 to omit the mac, NONE can be set for an encryption algorithm.
1135 New code is modified to use the enhanced PKCS12_create()
1136 instead of the low level API.
1139 *) Extend ASN1 encoder to support indefinite length constructed
1140 encoding. This can output sequences tags and octet strings in
1141 this form. Modify pk7_asn1.c to support indefinite length
1142 encoding. This is experimental and needs additional code to
1143 be useful, such as an ASN1 bio and some enhanced streaming
1146 Extend template encode functionality so that tagging is passed
1147 down to the template encoder.
1150 *) Let 'openssl req' fail if an argument to '-newkey' is not
1151 recognized instead of using RSA as a default.
1154 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1155 As these are not official, they are not included in "ALL";
1156 the "ECCdraft" ciphersuite group alias can be used to select them.
1157 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1159 *) Add ECDH engine support.
1160 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1162 *) Add ECDH in new directory crypto/ecdh/.
1163 [Douglas Stebila (Sun Microsystems Laboratories)]
1165 *) Let BN_rand_range() abort with an error after 100 iterations
1166 without success (which indicates a broken PRNG).
1169 *) Change BN_mod_sqrt() so that it verifies that the input value
1170 is really the square of the return value. (Previously,
1171 BN_mod_sqrt would show GIGO behaviour.)
1174 *) Add named elliptic curves over binary fields from X9.62, SECG,
1175 and WAP/WTLS; add OIDs that were still missing.
1177 [Sheueling Chang Shantz and Douglas Stebila
1178 (Sun Microsystems Laboratories)]
1180 *) Extend the EC library for elliptic curves over binary fields
1181 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1184 EC_GF2m_simple_method
1188 EC_GROUP_new_curve_GF2m
1189 EC_GROUP_set_curve_GF2m
1190 EC_GROUP_get_curve_GF2m
1191 EC_POINT_set_affine_coordinates_GF2m
1192 EC_POINT_get_affine_coordinates_GF2m
1193 EC_POINT_set_compressed_coordinates_GF2m
1195 Point compression for binary fields is disabled by default for
1196 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1199 As binary polynomials are represented as BIGNUMs, various members
1200 of the EC_GROUP and EC_POINT data structures can be shared
1201 between the implementations for prime fields and binary fields;
1202 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1203 are essentially identical to their ..._GFp counterparts.
1204 (For simplicity, the '..._GFp' prefix has been dropped from
1205 various internal method names.)
1207 An internal 'field_div' method (similar to 'field_mul' and
1208 'field_sqr') has been added; this is used only for binary fields.
1210 [Sheueling Chang Shantz and Douglas Stebila
1211 (Sun Microsystems Laboratories)]
1213 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1214 through methods ('mul', 'precompute_mult').
1216 The generic implementations (now internally called 'ec_wNAF_mul'
1217 and 'ec_wNAF_precomputed_mult') remain the default if these
1218 methods are undefined.
1220 [Sheueling Chang Shantz and Douglas Stebila
1221 (Sun Microsystems Laboratories)]
1223 *) New function EC_GROUP_get_degree, which is defined through
1224 EC_METHOD. For curves over prime fields, this returns the bit
1225 length of the modulus.
1227 [Sheueling Chang Shantz and Douglas Stebila
1228 (Sun Microsystems Laboratories)]
1230 *) New functions EC_GROUP_dup, EC_POINT_dup.
1231 (These simply call ..._new and ..._copy).
1233 [Sheueling Chang Shantz and Douglas Stebila
1234 (Sun Microsystems Laboratories)]
1236 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1237 Polynomials are represented as BIGNUMs (where the sign bit is not
1238 used) in the following functions [macros]:
1241 BN_GF2m_sub [= BN_GF2m_add]
1242 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1243 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1244 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1246 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1247 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1248 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1249 BN_GF2m_cmp [= BN_ucmp]
1251 (Note that only the 'mod' functions are actually for fields GF(2^m).
1252 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1254 For some functions, an the irreducible polynomial defining a
1255 field can be given as an 'unsigned int[]' with strictly
1256 decreasing elements giving the indices of those bits that are set;
1257 i.e., p[] represents the polynomial
1258 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1260 p[0] > p[1] > ... > p[k] = 0.
1261 This applies to the following functions:
1266 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1267 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1269 BN_GF2m_mod_sqrt_arr
1270 BN_GF2m_mod_solve_quad_arr
1274 Conversion can be performed by the following functions:
1279 bntest.c has additional tests for binary polynomial arithmetic.
1281 Two implementations for BN_GF2m_mod_div() are available.
1282 The default algorithm simply uses BN_GF2m_mod_inv() and
1283 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1284 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1285 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1287 [Sheueling Chang Shantz and Douglas Stebila
1288 (Sun Microsystems Laboratories)]
1290 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1291 functionality is disabled at compile-time.
1292 [Douglas Stebila <douglas.stebila@sun.com>]
1294 *) Change default behaviour of 'openssl asn1parse' so that more
1295 information is visible when viewing, e.g., a certificate:
1297 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1298 mode the content of non-printable OCTET STRINGs is output in a
1299 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1300 avoid the appearance of a printable string.
1301 [Nils Larsch <nla@trustcenter.de>]
1303 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1305 EC_GROUP_set_asn1_flag()
1306 EC_GROUP_get_asn1_flag()
1307 EC_GROUP_set_point_conversion_form()
1308 EC_GROUP_get_point_conversion_form()
1309 These control ASN1 encoding details:
1310 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1311 has been set to OPENSSL_EC_NAMED_CURVE.
1312 - Points are encoded in uncompressed form by default; options for
1313 asn1_for are as for point2oct, namely
1314 POINT_CONVERSION_COMPRESSED
1315 POINT_CONVERSION_UNCOMPRESSED
1316 POINT_CONVERSION_HYBRID
1318 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1321 EC_GROUP_get0_seed()
1322 EC_GROUP_get_seed_len()
1323 This is used only for ASN1 purposes (so far).
1324 [Nils Larsch <nla@trustcenter.de>]
1326 *) Add 'field_type' member to EC_METHOD, which holds the NID
1327 of the appropriate field type OID. The new function
1328 EC_METHOD_get_field_type() returns this value.
1329 [Nils Larsch <nla@trustcenter.de>]
1334 EC_POINT_point2hex()
1335 EC_POINT_hex2point()
1336 providing useful interfaces to EC_POINT_point2oct() and
1337 EC_POINT_oct2point().
1338 [Nils Larsch <nla@trustcenter.de>]
1340 *) Change internals of the EC library so that the functions
1341 EC_GROUP_set_generator()
1342 EC_GROUP_get_generator()
1343 EC_GROUP_get_order()
1344 EC_GROUP_get_cofactor()
1345 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1346 to methods, which would lead to unnecessary code duplication when
1347 adding different types of curves.
1348 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1350 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1351 arithmetic, and such that modified wNAFs are generated
1352 (which avoid length expansion in many cases).
1355 *) Add a function EC_GROUP_check_discriminant() (defined via
1356 EC_METHOD) that verifies that the curve discriminant is non-zero.
1358 Add a function EC_GROUP_check() that makes some sanity tests
1359 on a EC_GROUP, its generator and order. This includes
1360 EC_GROUP_check_discriminant().
1361 [Nils Larsch <nla@trustcenter.de>]
1363 *) Add ECDSA in new directory crypto/ecdsa/.
1365 Add applications 'openssl ecparam' and 'openssl ecdsa'
1366 (these are based on 'openssl dsaparam' and 'openssl dsa').
1368 ECDSA support is also included in various other files across the
1369 library. Most notably,
1370 - 'openssl req' now has a '-newkey ecdsa:file' option;
1371 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1372 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1373 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1374 them suitable for ECDSA where domain parameters must be
1375 extracted before the specific public key;
1376 - ECDSA engine support has been added.
1377 [Nils Larsch <nla@trustcenter.de>]
1379 *) Include some named elliptic curves, and add OIDs from X9.62,
1380 SECG, and WAP/WTLS. Each curve can be obtained from the new
1382 EC_GROUP_new_by_curve_name(),
1383 and the list of available named curves can be obtained with
1384 EC_get_builtin_curves().
1385 Also add a 'curve_name' member to EC_GROUP objects, which can be
1387 EC_GROUP_set_curve_name()
1388 EC_GROUP_get_curve_name()
1389 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1391 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1392 was actually never needed) and in BN_mul(). The removal in BN_mul()
1393 required a small change in bn_mul_part_recursive() and the addition
1394 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1395 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1396 bn_sub_words() and bn_add_words() except they take arrays with
1400 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1402 *) In the SSL/TLS server implementation, be strict about session ID
1403 context matching (which matters if an application uses a single
1404 external cache for different purposes). Previously,
1405 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1406 set. This did ensure strict client verification, but meant that,
1407 with applications using a single external cache for quite
1408 different requirements, clients could circumvent ciphersuite
1409 restrictions for a given session ID context by starting a session
1410 in a different context.
1413 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1415 *) Cleanse PEM buffers before freeing them since they may contain
1417 [Benjamin Bennett <ben@psc.edu>]
1419 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1420 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1421 authentication-only ciphersuites.
1424 *) Since AES128 and AES256 share a single mask bit in the logic of
1425 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1426 kludge to work properly if AES128 is available and AES256 isn't.
1429 *) Expand security boundary to match 1.1.1 module.
1432 *) Remove redundant features: hash file source, editing of test vectors
1433 modify fipsld to use external fips_premain.c signature.
1436 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1437 run algorithm test programs.
1440 *) Make algorithm test programs more tolerant of whitespace.
1443 *) Have SSL/TLS server implementation tolerate "mismatched" record
1444 protocol version while receiving ClientHello even if the
1445 ClientHello is fragmented. (The server can't insist on the
1446 particular protocol version it has chosen before the ServerHello
1447 message has informed the client about his choice.)
1450 *) Load error codes if they are not already present instead of using a
1451 static variable. This allows them to be cleanly unloaded and reloaded.
1454 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1456 *) Introduce limits to prevent malicious keys being able to
1457 cause a denial of service. (CVE-2006-2940)
1458 [Steve Henson, Bodo Moeller]
1460 *) Fix ASN.1 parsing of certain invalid structures that can result
1461 in a denial of service. (CVE-2006-2937) [Steve Henson]
1463 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1464 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1466 *) Fix SSL client code which could crash if connecting to a
1467 malicious SSLv2 server. (CVE-2006-4343)
1468 [Tavis Ormandy and Will Drewry, Google Security Team]
1470 *) Change ciphersuite string processing so that an explicit
1471 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1472 will no longer include "AES128-SHA"), and any other similar
1473 ciphersuite (same bitmap) from *other* protocol versions (so that
1474 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1475 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1476 changes from 0.9.8b and 0.9.8d.
1479 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1481 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1482 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1484 *) Change the Unix randomness entropy gathering to use poll() when
1485 possible instead of select(), since the latter has some
1486 undesirable limitations.
1487 [Darryl Miles via Richard Levitte and Bodo Moeller]
1489 *) Disable rogue ciphersuites:
1491 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1492 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1493 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1495 The latter two were purportedly from
1496 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1499 Also deactive the remaining ciphersuites from
1500 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1501 unofficial, and the ID has long expired.
1504 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1505 dual-core machines) and other potential thread-safety issues.
1508 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1510 *) Adapt fipsld and the build system to link against the validated FIPS
1511 module in FIPS mode.
1514 *) Fixes for VC++ 2005 build under Windows.
1517 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1518 from a Windows bash shell such as MSYS. It is autodetected from the
1519 "config" script when run from a VC++ environment. Modify standard VC++
1520 build to use fipscanister.o from the GNU make build.
1523 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1525 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1526 The value now differs depending on if you build for FIPS or not.
1527 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1528 safely run with a non-FIPSed libcrypto, as it may crash because of
1529 the difference induced by this change.
1532 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1534 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1535 (part of SSL_OP_ALL). This option used to disable the
1536 countermeasure against man-in-the-middle protocol-version
1537 rollback in the SSL 2.0 server implementation, which is a bad
1538 idea. (CVE-2005-2969)
1540 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1541 for Information Security, National Institute of Advanced Industrial
1542 Science and Technology [AIST], Japan)]
1544 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1545 mainly for FIPS compliance and not fully integrated at this stage.
1548 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1549 the exponentiation using a fixed-length exponent. (Otherwise,
1550 the information leaked through timing could expose the secret key
1551 after many signatures; cf. Bleichenbacher's attack on DSA with
1555 *) Make a new fixed-window mod_exp implementation the default for
1556 RSA, DSA, and DH private-key operations so that the sequence of
1557 squares and multiplies and the memory access pattern are
1558 independent of the particular secret key. This will mitigate
1559 cache-timing and potential related attacks.
1561 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1562 and this is automatically used by BN_mod_exp_mont() if the new flag
1563 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1564 will use this BN flag for private exponents unless the flag
1565 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1566 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1568 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1570 *) Change the client implementation for SSLv23_method() and
1571 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1572 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1573 (Previously, the SSL 2.0 backwards compatible Client Hello
1574 message format would be used even with SSL_OP_NO_SSLv2.)
1577 *) Add support for smime-type MIME parameter in S/MIME messages which some
1581 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1582 a threadsafe manner. Modify rsa code to use new function and add calls
1583 to dsa and dh code (which had race conditions before).
1586 *) Include the fixed error library code in the C error file definitions
1587 instead of fixing them up at runtime. This keeps the error code
1588 structures constant.
1591 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1593 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1596 *) Fixes for newer kerberos headers. NB: the casts are needed because
1597 the 'length' field is signed on one version and unsigned on another
1598 with no (?) obvious way to tell the difference, without these VC++
1599 complains. Also the "definition" of FAR (blank) is no longer included
1600 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1601 some needed definitions.
1604 *) Undo Cygwin change.
1607 *) Added support for proxy certificates according to RFC 3820.
1608 Because they may be a security thread to unaware applications,
1609 they must be explicitely allowed in run-time. See
1610 docs/HOWTO/proxy_certificates.txt for further information.
1613 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1615 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1616 server and client random values. Previously
1617 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1618 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1620 This change has negligible security impact because:
1622 1. Server and client random values still have 24 bytes of pseudo random
1625 2. Server and client random values are sent in the clear in the initial
1628 3. The master secret is derived using the premaster secret (48 bytes in
1629 size for static RSA ciphersuites) as well as client server and random
1632 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1635 [Stephen Henson, reported by UK NISCC]
1637 *) Use Windows randomness collection on Cygwin.
1640 *) Fix hang in EGD/PRNGD query when communication socket is closed
1641 prematurely by EGD/PRNGD.
1642 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1644 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1647 *) Back-port of selected performance improvements from development
1648 branch, as well as improved support for PowerPC platforms.
1651 *) Add lots of checks for memory allocation failure, error codes to indicate
1652 failure and freeing up memory if a failure occurs.
1653 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1655 *) Add new -passin argument to dgst.
1658 *) Perform some character comparisons of different types in X509_NAME_cmp:
1659 this is needed for some certificates that reencode DNs into UTF8Strings
1660 (in violation of RFC3280) and can't or wont issue name rollover
1664 *) Make an explicit check during certificate validation to see that
1665 the CA setting in each certificate on the chain is correct. As a
1666 side effect always do the following basic checks on extensions,
1667 not just when there's an associated purpose to the check:
1669 - if there is an unhandled critical extension (unless the user
1670 has chosen to ignore this fault)
1671 - if the path length has been exceeded (if one is set at all)
1672 - that certain extensions fit the associated purpose (if one has
1676 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1678 *) Avoid a race condition when CRLs are checked in a multi threaded
1679 environment. This would happen due to the reordering of the revoked
1680 entries during signature checking and serial number lookup. Now the
1681 encoding is cached and the serial number sort performed under a lock.
1682 Add new STACK function sk_is_sorted().
1685 *) Add Delta CRL to the extension code.
1688 *) Various fixes to s3_pkt.c so alerts are sent properly.
1689 [David Holmes <d.holmes@f5.com>]
1691 *) Reduce the chances of duplicate issuer name and serial numbers (in
1692 violation of RFC3280) using the OpenSSL certificate creation utilities.
1693 This is done by creating a random 64 bit value for the initial serial
1694 number when a serial number file is created or when a self signed
1695 certificate is created using 'openssl req -x509'. The initial serial
1696 number file is created using 'openssl x509 -next_serial' in CA.pl
1697 rather than being initialized to 1.
1700 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1702 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1703 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1704 [Joe Orton, Steve Henson]
1706 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1708 [Joe Orton, Steve Henson]
1710 *) Make it possible to have multiple active certificates with the same
1711 subject in the CA index file. This is done only if the keyword
1712 'unique_subject' is set to 'no' in the main CA section (default
1713 if 'CA_default') of the configuration file. The value is saved
1714 with the database itself in a separate index attribute file,
1715 named like the index file with '.attr' appended to the name.
1718 *) X509 verify fixes. Disable broken certificate workarounds when
1719 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1720 keyUsage extension present. Don't accept CRLs with unhandled critical
1721 extensions: since verify currently doesn't process CRL extensions this
1722 rejects a CRL with *any* critical extensions. Add new verify error codes
1726 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1727 A clarification of RFC2560 will require the use of OCTET STRINGs and
1728 some implementations cannot handle the current raw format. Since OpenSSL
1729 copies and compares OCSP nonces as opaque blobs without any attempt at
1730 parsing them this should not create any compatibility issues.
1733 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1734 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1735 this HMAC (and other) operations are several times slower than OpenSSL
1739 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1740 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1742 *) Use the correct content when signing type "other".
1745 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1747 *) Fix various bugs revealed by running the NISCC test suite:
1749 Stop out of bounds reads in the ASN1 code when presented with
1750 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1752 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1754 If verify callback ignores invalid public key errors don't try to check
1755 certificate signature with the NULL public key.
1759 *) New -ignore_err option in ocsp application to stop the server
1760 exiting on the first error in a request.
1763 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1764 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1768 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1769 extra data after the compression methods not only for TLS 1.0
1770 but also for SSL 3.0 (as required by the specification).
1771 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1773 *) Change X509_certificate_type() to mark the key as exported/exportable
1774 when it's 512 *bits* long, not 512 bytes.
1777 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1778 blocks during encryption.
1781 *) Various fixes to base64 BIO and non blocking I/O. On write
1782 flushes were not handled properly if the BIO retried. On read
1783 data was not being buffered properly and had various logic bugs.
1784 This also affects blocking I/O when the data being decoded is a
1788 *) Various S/MIME bugfixes and compatibility changes:
1789 output correct application/pkcs7 MIME type if
1790 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1791 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1792 of files as .eml work). Correctly handle very long lines in MIME
1796 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1798 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1799 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1800 a protocol version number mismatch like a decryption error
1801 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1804 *) Turn on RSA blinding by default in the default implementation
1805 to avoid a timing attack. Applications that don't want it can call
1806 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1807 They would be ill-advised to do so in most cases.
1808 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1810 *) Change RSA blinding code so that it works when the PRNG is not
1811 seeded (in this case, the secret RSA exponent is abused as
1812 an unpredictable seed -- if it is not unpredictable, there
1813 is no point in blinding anyway). Make RSA blinding thread-safe
1814 by remembering the creator's thread ID in rsa->blinding and
1815 having all other threads use local one-time blinding factors
1816 (this requires more computation than sharing rsa->blinding, but
1817 avoids excessive locking; and if an RSA object is not shared
1818 between threads, blinding will still be very fast).
1821 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1822 ENGINE as defaults for all supported algorithms irrespective of
1823 the 'flags' parameter. 'flags' is now honoured, so applications
1824 should make sure they are passing it correctly.
1827 *) Target "mingw" now allows native Windows code to be generated in
1828 the Cygwin environment as well as with the MinGW compiler.
1831 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1833 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1834 via timing by performing a MAC computation even if incorrrect
1835 block cipher padding has been found. This is a countermeasure
1836 against active attacks where the attacker has to distinguish
1837 between bad padding and a MAC verification error. (CVE-2003-0078)
1839 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1840 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1841 Martin Vuagnoux (EPFL, Ilion)]
1843 *) Make the no-err option work as intended. The intention with no-err
1844 is not to have the whole error stack handling routines removed from
1845 libcrypto, it's only intended to remove all the function name and
1846 reason texts, thereby removing some of the footprint that may not
1847 be interesting if those errors aren't displayed anyway.
1849 NOTE: it's still possible for any application or module to have it's
1850 own set of error texts inserted. The routines are there, just not
1851 used by default when no-err is given.
1854 *) Add support for FreeBSD on IA64.
1855 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1857 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1858 Kerberos function mit_des_cbc_cksum(). Before this change,
1859 the value returned by DES_cbc_cksum() was like the one from
1860 mit_des_cbc_cksum(), except the bytes were swapped.
1861 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1863 *) Allow an application to disable the automatic SSL chain building.
1864 Before this a rather primitive chain build was always performed in
1865 ssl3_output_cert_chain(): an application had no way to send the
1866 correct chain if the automatic operation produced an incorrect result.
1868 Now the chain builder is disabled if either:
1870 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1872 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1874 The reasoning behind this is that an application would not want the
1875 auto chain building to take place if extra chain certificates are
1876 present and it might also want a means of sending no additional
1877 certificates (for example the chain has two certificates and the
1881 *) Add the possibility to build without the ENGINE framework.
1882 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1884 *) Under Win32 gmtime() can return NULL: check return value in
1885 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1888 *) DSA routines: under certain error conditions uninitialized BN objects
1889 could be freed. Solution: make sure initialization is performed early
1890 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1891 Nils Larsch <nla@trustcenter.de> via PR#459)
1894 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1895 checked on reconnect on the client side, therefore session resumption
1896 could still fail with a "ssl session id is different" error. This
1897 behaviour is masked when SSL_OP_ALL is used due to
1898 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1899 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1900 followup to PR #377.
1903 *) IA-32 assembler support enhancements: unified ELF targets, support
1904 for SCO/Caldera platforms, fix for Cygwin shared build.
1907 *) Add support for FreeBSD on sparc64. As a consequence, support for
1908 FreeBSD on non-x86 processors is separate from x86 processors on
1909 the config script, much like the NetBSD support.
1910 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1912 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1914 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1917 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1918 code (06) was taken as the first octet of the session ID and the last
1919 octet was ignored consequently. As a result SSLv2 client side session
1920 caching could not have worked due to the session ID mismatch between
1922 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1926 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1927 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1931 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1932 seems that in spite of existing for more than a year, many application
1933 author have done nothing to provide the necessary callbacks, which
1934 means that this particular engine will not work properly anywhere.
1935 This is a very unfortunate situation which forces us, in the name
1936 of usability, to give the hw_ncipher.c a static lock, which is part
1938 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1939 appear in 0.9.8 or later. We EXPECT application authors to have
1940 dealt properly with this when 0.9.8 is released (unless we actually
1941 make such changes in the libcrypto locking code that changes will
1942 have to be made anyway).
1945 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1946 octets have been read, EOF or an error occurs. Without this change
1947 some truncated ASN1 structures will not produce an error.
1950 *) Disable Heimdal support, since it hasn't been fully implemented.
1951 Still give the possibility to force the use of Heimdal, but with
1952 warnings and a request that patches get sent to openssl-dev.
1955 *) Add the VC-CE target, introduce the WINCE sysname, and add
1956 INSTALL.WCE and appropriate conditionals to make it build.
1957 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1959 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1960 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1961 edit numbers of the version.
1962 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1964 *) Introduce safe string copy and catenation functions
1965 (BUF_strlcpy() and BUF_strlcat()).
1966 [Ben Laurie (CHATS) and Richard Levitte]
1968 *) Avoid using fixed-size buffers for one-line DNs.
1969 [Ben Laurie (CHATS)]
1971 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1972 resizing buffers containing secrets, and use where appropriate.
1973 [Ben Laurie (CHATS)]
1975 *) Avoid using fixed size buffers for configuration file location.
1976 [Ben Laurie (CHATS)]
1978 *) Avoid filename truncation for various CA files.
1979 [Ben Laurie (CHATS)]
1981 *) Use sizeof in preference to magic numbers.
1982 [Ben Laurie (CHATS)]
1984 *) Avoid filename truncation in cert requests.
1985 [Ben Laurie (CHATS)]
1987 *) Add assertions to check for (supposedly impossible) buffer
1989 [Ben Laurie (CHATS)]
1991 *) Don't cache truncated DNS entries in the local cache (this could
1992 potentially lead to a spoofing attack).
1993 [Ben Laurie (CHATS)]
1995 *) Fix various buffers to be large enough for hex/decimal
1996 representations in a platform independent manner.
1997 [Ben Laurie (CHATS)]
1999 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2000 resizing buffers containing secrets, and use where appropriate.
2001 [Ben Laurie (CHATS)]
2003 *) Add BIO_indent() to avoid much slightly worrying code to do
2005 [Ben Laurie (CHATS)]
2007 *) Convert sprintf()/BIO_puts() to BIO_printf().
2008 [Ben Laurie (CHATS)]
2010 *) buffer_gets() could terminate with the buffer only half
2012 [Ben Laurie (CHATS)]
2014 *) Add assertions to prevent user-supplied crypto functions from
2015 overflowing internal buffers by having large block sizes, etc.
2016 [Ben Laurie (CHATS)]
2018 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2020 [Ben Laurie (CHATS)]
2022 *) Eliminate unused copy of key in RC4.
2023 [Ben Laurie (CHATS)]
2025 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2026 [Ben Laurie (CHATS)]
2028 *) Fix off-by-one error in EGD path.
2029 [Ben Laurie (CHATS)]
2031 *) If RANDFILE path is too long, ignore instead of truncating.
2032 [Ben Laurie (CHATS)]
2034 *) Eliminate unused and incorrectly sized X.509 structure
2036 [Ben Laurie (CHATS)]
2038 *) Eliminate unused and dangerous function knumber().
2039 [Ben Laurie (CHATS)]
2041 *) Eliminate unused and dangerous structure, KSSL_ERR.
2042 [Ben Laurie (CHATS)]
2044 *) Protect against overlong session ID context length in an encoded
2045 session object. Since these are local, this does not appear to be
2047 [Ben Laurie (CHATS)]
2049 *) Change from security patch (see 0.9.6e below) that did not affect
2050 the 0.9.6 release series:
2052 Remote buffer overflow in SSL3 protocol - an attacker could
2053 supply an oversized master key in Kerberos-enabled versions.
2055 [Ben Laurie (CHATS)]
2057 *) Change the SSL kerb5 codes to match RFC 2712.
2060 *) Make -nameopt work fully for req and add -reqopt switch.
2061 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2063 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2064 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2066 *) Make sure tests can be performed even if the corresponding algorithms
2067 have been removed entirely. This was also the last step to make
2068 OpenSSL compilable with DJGPP under all reasonable conditions.
2069 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2071 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2072 to allow version independent disabling of normally unselected ciphers,
2073 which may be activated as a side-effect of selecting a single cipher.
2075 (E.g., cipher list string "RSA" enables ciphersuites that are left
2076 out of "ALL" because they do not provide symmetric encryption.
2077 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2078 [Lutz Jaenicke, Bodo Moeller]
2080 *) Add appropriate support for separate platform-dependent build
2081 directories. The recommended way to make a platform-dependent
2082 build directory is the following (tested on Linux), maybe with
2085 # Place yourself outside of the OpenSSL source tree. In
2086 # this example, the environment variable OPENSSL_SOURCE
2087 # is assumed to contain the absolute OpenSSL source directory.
2088 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2089 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2090 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2091 mkdir -p `dirname $F`
2092 ln -s $OPENSSL_SOURCE/$F $F
2095 To be absolutely sure not to disturb the source tree, a "make clean"
2096 is a good thing. If it isn't successfull, don't worry about it,
2097 it probably means the source directory is very clean.
2100 *) Make sure any ENGINE control commands make local copies of string
2101 pointers passed to them whenever necessary. Otherwise it is possible
2102 the caller may have overwritten (or deallocated) the original string
2103 data when a later ENGINE operation tries to use the stored values.
2104 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2106 *) Improve diagnostics in file reading and command-line digests.
2107 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2109 *) Add AES modes CFB and OFB to the object database. Correct an
2110 error in AES-CFB decryption.
2113 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2114 allows existing EVP_CIPHER_CTX structures to be reused after
2115 calling EVP_*Final(). This behaviour is used by encryption
2116 BIOs and some applications. This has the side effect that
2117 applications must explicitly clean up cipher contexts with
2118 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2121 *) Check the values of dna and dnb in bn_mul_recursive before calling
2122 bn_mul_comba (a non zero value means the a or b arrays do not contain
2123 n2 elements) and fallback to bn_mul_normal if either is not zero.
2126 *) Fix escaping of non-ASCII characters when using the -subj option
2127 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2130 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2131 form for "surname", serialNumber has no short form.
2132 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2133 therefore remove "mail" short name for "internet 7".
2134 The OID for unique identifiers in X509 certificates is
2135 x500UniqueIdentifier, not uniqueIdentifier.
2136 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2139 *) Add an "init" command to the ENGINE config module and auto initialize
2140 ENGINEs. Without any "init" command the ENGINE will be initialized
2141 after all ctrl commands have been executed on it. If init=1 the
2142 ENGINE is initailized at that point (ctrls before that point are run
2143 on the uninitialized ENGINE and after on the initialized one). If
2144 init=0 then the ENGINE will not be iniatialized at all.
2147 *) Fix the 'app_verify_callback' interface so that the user-defined
2148 argument is actually passed to the callback: In the
2149 SSL_CTX_set_cert_verify_callback() prototype, the callback
2150 declaration has been changed from
2153 int (*cb)(X509_STORE_CTX *,void *);
2154 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2155 i=s->ctx->app_verify_callback(&ctx)
2156 has been changed into
2157 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2159 To update applications using SSL_CTX_set_cert_verify_callback(),
2160 a dummy argument can be added to their callback functions.
2161 [D. K. Smetters <smetters@parc.xerox.com>]
2163 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2164 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2166 *) Add and OPENSSL_LOAD_CONF define which will cause
2167 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2168 This allows older applications to transparently support certain
2169 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2170 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2171 load the config file and OPENSSL_add_all_algorithms_conf() which will
2172 always load it have also been added.
2175 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2176 Adjust NIDs and EVP layer.
2177 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2179 *) Config modules support in openssl utility.
2181 Most commands now load modules from the config file,
2182 though in a few (such as version) this isn't done
2183 because it couldn't be used for anything.
2185 In the case of ca and req the config file used is
2186 the same as the utility itself: that is the -config
2187 command line option can be used to specify an
2191 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2192 use "openssl_conf" if filename is NULL use default openssl config file.
2195 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2196 config section name. Add a new flag to tolerate a missing config file
2197 and move code to CONF_modules_load_file().
2200 *) Support for crypto accelerator cards from Accelerated Encryption
2201 Processing, www.aep.ie. (Use engine 'aep')
2202 The support was copied from 0.9.6c [engine] and adapted/corrected
2203 to work with the new engine framework.
2204 [AEP Inc. and Richard Levitte]
2206 *) Support for SureWare crypto accelerator cards from Baltimore
2207 Technologies. (Use engine 'sureware')
2208 The support was copied from 0.9.6c [engine] and adapted
2209 to work with the new engine framework.
2212 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2213 make the newer ENGINE framework commands for the CHIL engine work.
2214 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2216 *) Make it possible to produce shared libraries on ReliantUNIX.
2217 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2219 *) Add the configuration target debug-linux-ppro.
2220 Make 'openssl rsa' use the general key loading routines
2221 implemented in apps.c, and make those routines able to
2222 handle the key format FORMAT_NETSCAPE and the variant
2224 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2226 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2227 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2229 *) Add -keyform to rsautl, and document -engine.
2230 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2232 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2233 BIO_R_NO_SUCH_FILE error code rather than the generic
2234 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2237 *) Add new functions
2239 ERR_peek_last_error_line
2240 ERR_peek_last_error_line_data.
2241 These are similar to
2244 ERR_peek_error_line_data,
2245 but report on the latest error recorded rather than the first one
2246 still in the error queue.
2247 [Ben Laurie, Bodo Moeller]
2249 *) default_algorithms option in ENGINE config module. This allows things
2251 default_algorithms = ALL
2252 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2255 *) Prelminary ENGINE config module.
2258 *) New experimental application configuration code.
2261 *) Change the AES code to follow the same name structure as all other
2262 symmetric ciphers, and behave the same way. Move everything to
2263 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2264 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2266 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2267 [Ben Laurie and Theo de Raadt]
2269 *) Add option to output public keys in req command.
2270 [Massimiliano Pala madwolf@openca.org]
2272 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2273 (up to about 10% better than before for P-192 and P-224).
2276 *) New functions/macros
2278 SSL_CTX_set_msg_callback(ctx, cb)
2279 SSL_CTX_set_msg_callback_arg(ctx, arg)
2280 SSL_set_msg_callback(ssl, cb)
2281 SSL_set_msg_callback_arg(ssl, arg)
2283 to request calling a callback function
2285 void cb(int write_p, int version, int content_type,
2286 const void *buf, size_t len, SSL *ssl, void *arg)
2288 whenever a protocol message has been completely received
2289 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2290 protocol version according to which the SSL library interprets
2291 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2292 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2293 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2294 specification (change_cipher_spec(20), alert(21), handshake(22)).
2295 'buf' and 'len' point to the actual message, 'ssl' to the
2296 SSL object, and 'arg' is the application-defined value set by
2297 SSL[_CTX]_set_msg_callback_arg().
2299 'openssl s_client' and 'openssl s_server' have new '-msg' options
2300 to enable a callback that displays all protocol messages.
2303 *) Change the shared library support so shared libraries are built as
2304 soon as the corresponding static library is finished, and thereby get
2305 openssl and the test programs linked against the shared library.
2306 This still only happens when the keyword "shard" has been given to
2307 the configuration scripts.
2309 NOTE: shared library support is still an experimental thing, and
2310 backward binary compatibility is still not guaranteed.
2311 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2313 *) Add support for Subject Information Access extension.
2314 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2316 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2317 additional bytes when new memory had to be allocated, not just
2318 when reusing an existing buffer.
2321 *) New command line and configuration option 'utf8' for the req command.
2322 This allows field values to be specified as UTF8 strings.
2325 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2326 runs for the former and machine-readable output for the latter.
2329 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2330 of the e-mail address in the DN (i.e., it will go into a certificate
2331 extension only). The new configuration file option 'email_in_dn = no'
2332 has the same effect.
2333 [Massimiliano Pala madwolf@openca.org]
2335 *) Change all functions with names starting with des_ to be starting
2336 with DES_ instead. Add wrappers that are compatible with libdes,
2337 but are named _ossl_old_des_*. Finally, add macros that map the
2338 des_* symbols to the corresponding _ossl_old_des_* if libdes
2339 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2340 desired, the des_* symbols will be mapped to DES_*, with one
2343 Since we provide two compatibility mappings, the user needs to
2344 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2345 compatibility is desired. The default (i.e., when that macro
2346 isn't defined) is OpenSSL 0.9.6c compatibility.
2348 There are also macros that enable and disable the support of old
2349 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2350 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2351 are defined, the default will apply: to support the old des routines.
2353 In either case, one must include openssl/des.h to get the correct
2354 definitions. Do not try to just include openssl/des_old.h, that
2357 NOTE: This is a major break of an old API into a new one. Software
2358 authors are encouraged to switch to the DES_ style functions. Some
2359 time in the future, des_old.h and the libdes compatibility functions
2360 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2361 default), and then completely removed.
2364 *) Test for certificates which contain unsupported critical extensions.
2365 If such a certificate is found during a verify operation it is
2366 rejected by default: this behaviour can be overridden by either
2367 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2368 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2369 X509_supported_extension() has also been added which returns 1 if a
2370 particular extension is supported.
2373 *) Modify the behaviour of EVP cipher functions in similar way to digests
2374 to retain compatibility with existing code.
2377 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2378 compatibility with existing code. In particular the 'ctx' parameter does
2379 not have to be to be initialized before the call to EVP_DigestInit() and
2380 it is tidied up after a call to EVP_DigestFinal(). New function
2381 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2382 EVP_MD_CTX_copy() changed to not require the destination to be
2383 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2384 requires the destination to be valid.
2386 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2387 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2390 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2391 so that complete 'Handshake' protocol structures are kept in memory
2392 instead of overwriting 'msg_type' and 'length' with 'body' data.
2395 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2396 [Massimo Santin via Richard Levitte]
2398 *) Major restructuring to the underlying ENGINE code. This includes
2399 reduction of linker bloat, separation of pure "ENGINE" manipulation
2400 (initialisation, etc) from functionality dealing with implementations
2401 of specific crypto iterfaces. This change also introduces integrated
2402 support for symmetric ciphers and digest implementations - so ENGINEs
2403 can now accelerate these by providing EVP_CIPHER and EVP_MD
2404 implementations of their own. This is detailed in crypto/engine/README
2405 as it couldn't be adequately described here. However, there are a few
2406 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2407 were changed in the original introduction of ENGINE code have now
2408 reverted back - the hooking from this code to ENGINE is now a good
2409 deal more passive and at run-time, operations deal directly with
2410 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2411 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2412 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2413 they were not being used by the framework as there is no concept of a
2414 BIGNUM_METHOD and they could not be generalised to the new
2415 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2416 ENGINE_cpy() has been removed as it cannot be consistently defined in
2420 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2423 *) Change mkdef.pl to sort symbols that get the same entry number,
2424 and make sure the automatically generated functions ERR_load_*
2425 become part of libeay.num as well.
2428 *) New function SSL_renegotiate_pending(). This returns true once
2429 renegotiation has been requested (either SSL_renegotiate() call
2430 or HelloRequest/ClientHello receveived from the peer) and becomes
2431 false once a handshake has been completed.
2432 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2433 sends a HelloRequest, but does not ensure that a handshake takes
2434 place. SSL_renegotiate_pending() is useful for checking if the
2435 client has followed the request.)
2438 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2439 By default, clients may request session resumption even during
2440 renegotiation (if session ID contexts permit); with this option,
2441 session resumption is possible only in the first handshake.
2443 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2444 more bits available for options that should not be part of
2445 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2448 *) Add some demos for certificate and certificate request creation.
2451 *) Make maximum certificate chain size accepted from the peer application
2452 settable (SSL*_get/set_max_cert_list()), as proposed by
2453 "Douglas E. Engert" <deengert@anl.gov>.
2456 *) Add support for shared libraries for Unixware-7
2457 (Boyd Lynn Gerber <gerberb@zenez.com>).
2460 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2461 be done prior to destruction. Use this to unload error strings from
2462 ENGINEs that load their own error strings. NB: This adds two new API
2463 functions to "get" and "set" this destroy handler in an ENGINE.
2466 *) Alter all existing ENGINE implementations (except "openssl" and
2467 "openbsd") to dynamically instantiate their own error strings. This
2468 makes them more flexible to be built both as statically-linked ENGINEs
2469 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2470 Also, add stub code to each that makes building them as self-contained
2471 shared-libraries easier (see README.ENGINE).
2474 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2475 implementations into applications that are completely implemented in
2476 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2477 commands that can be used to configure what shared-library to load and
2478 to control aspects of the way it is handled. Also, made an update to
2479 the README.ENGINE file that brings its information up-to-date and
2480 provides some information and instructions on the "dynamic" ENGINE
2481 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2484 *) Make it possible to unload ranges of ERR strings with a new
2485 "ERR_unload_strings" function.
2488 *) Add a copy() function to EVP_MD.
2491 *) Make EVP_MD routines take a context pointer instead of just the
2492 md_data void pointer.
2495 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2496 that the digest can only process a single chunk of data
2497 (typically because it is provided by a piece of
2498 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2499 is only going to provide a single chunk of data, and hence the
2500 framework needn't accumulate the data for oneshot drivers.
2503 *) As with "ERR", make it possible to replace the underlying "ex_data"
2504 functions. This change also alters the storage and management of global
2505 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2506 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2507 index counters. The API functions that use this state have been changed
2508 to take a "class_index" rather than pointers to the class's local STACK
2509 and counter, and there is now an API function to dynamically create new
2510 classes. This centralisation allows us to (a) plug a lot of the
2511 thread-safety problems that existed, and (b) makes it possible to clean
2512 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2513 such data would previously have always leaked in application code and
2514 workarounds were in place to make the memory debugging turn a blind eye
2515 to it. Application code that doesn't use this new function will still
2516 leak as before, but their memory debugging output will announce it now
2517 rather than letting it slide.
2519 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2520 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2521 has a return value to indicate success or failure.
2524 *) Make it possible to replace the underlying "ERR" functions such that the
2525 global state (2 LHASH tables and 2 locks) is only used by the "default"
2526 implementation. This change also adds two functions to "get" and "set"
2527 the implementation prior to it being automatically set the first time
2528 any other ERR function takes place. Ie. an application can call "get",
2529 pass the return value to a module it has just loaded, and that module
2530 can call its own "set" function using that value. This means the
2531 module's "ERR" operations will use (and modify) the error state in the
2532 application and not in its own statically linked copy of OpenSSL code.
2535 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2536 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2537 the operation, and provides a more encapsulated way for external code
2538 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2539 to use these functions rather than manually incrementing the counts.
2541 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2544 *) Add EVP test program.
2547 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2550 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2551 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2552 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2553 These allow a CRL to be built without having to access X509_CRL fields
2554 directly. Modify 'ca' application to use new functions.
2557 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2558 bug workarounds. Rollback attack detection is a security feature.
2559 The problem will only arise on OpenSSL servers when TLSv1 is not
2560 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2561 Software authors not wanting to support TLSv1 will have special reasons
2562 for their choice and can explicitly enable this option.
2563 [Bodo Moeller, Lutz Jaenicke]
2565 *) Rationalise EVP so it can be extended: don't include a union of
2566 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2567 (similar to those existing for EVP_CIPHER_CTX).
2572 EVP_MD_CTX_init(&md); /* new function call */
2573 EVP_DigestInit(&md, EVP_sha1());
2574 EVP_DigestUpdate(&md, in, len);
2575 EVP_DigestFinal(&md, out, NULL);
2576 EVP_MD_CTX_cleanup(&md); /* new function call */
2580 *) Make DES key schedule conform to the usual scheme, as well as
2581 correcting its structure. This means that calls to DES functions
2582 now have to pass a pointer to a des_key_schedule instead of a
2583 plain des_key_schedule (which was actually always a pointer
2586 des_key_schedule ks;
2588 des_set_key_checked(..., &ks);
2589 des_ncbc_encrypt(..., &ks, ...);
2591 (Note that a later change renames 'des_...' into 'DES_...'.)
2594 *) Initial reduction of linker bloat: the use of some functions, such as
2595 PEM causes large amounts of unused functions to be linked in due to
2596 poor organisation. For example pem_all.c contains every PEM function
2597 which has a knock on effect of linking in large amounts of (unused)
2598 ASN1 code. Grouping together similar functions and splitting unrelated
2599 functions prevents this.
2602 *) Cleanup of EVP macros.
2605 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2606 correct _ecb suffix.
2609 *) Add initial OCSP responder support to ocsp application. The
2610 revocation information is handled using the text based index
2611 use by the ca application. The responder can either handle
2612 requests generated internally, supplied in files (for example
2613 via a CGI script) or using an internal minimal server.
2616 *) Add configuration choices to get zlib compression for TLS.
2619 *) Changes to Kerberos SSL for RFC 2712 compliance:
2620 1. Implemented real KerberosWrapper, instead of just using
2621 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2622 2. Implemented optional authenticator field of KerberosWrapper.
2624 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2625 and authenticator structs; see crypto/krb5/.
2627 Generalized Kerberos calls to support multiple Kerberos libraries.
2628 [Vern Staats <staatsvr@asc.hpc.mil>,
2629 Jeffrey Altman <jaltman@columbia.edu>
2630 via Richard Levitte]
2632 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2633 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2634 values for each of the key sizes rather than having just
2635 parameters (and 'speed' generating keys each time).
2638 *) Speed up EVP routines.
2641 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2642 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2643 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2644 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2646 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2647 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2648 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2651 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2653 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2656 *) Added the OS2-EMX target.
2657 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2659 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2660 to support NCONF routines in extension code. New function CONF_set_nconf()
2661 to allow functions which take an NCONF to also handle the old LHASH
2662 structure: this means that the old CONF compatible routines can be
2663 retained (in particular wrt extensions) without having to duplicate the
2664 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2667 *) Enhance the general user interface with mechanisms for inner control
2668 and with possibilities to have yes/no kind of prompts.
2671 *) Change all calls to low level digest routines in the library and
2672 applications to use EVP. Add missing calls to HMAC_cleanup() and
2673 don't assume HMAC_CTX can be copied using memcpy().
2674 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2676 *) Add the possibility to control engines through control names but with
2677 arbitrary arguments instead of just a string.
2678 Change the key loaders to take a UI_METHOD instead of a callback
2679 function pointer. NOTE: this breaks binary compatibility with earlier
2680 versions of OpenSSL [engine].
2681 Adapt the nCipher code for these new conditions and add a card insertion
2685 *) Enhance the general user interface with mechanisms to better support
2686 dialog box interfaces, application-defined prompts, the possibility
2687 to use defaults (for example default passwords from somewhere else)
2688 and interrupts/cancellations.
2691 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2692 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2695 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2696 tidy up some unnecessarily weird code in 'sk_new()').
2697 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2699 *) Change the key loading routines for ENGINEs to use the same kind
2700 callback (pem_password_cb) as all other routines that need this
2704 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2705 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2706 than this minimum value is recommended.
2709 *) New random seeder for OpenVMS, using the system process statistics
2710 that are easily reachable.
2713 *) Windows apparently can't transparently handle global
2714 variables defined in DLLs. Initialisations such as:
2716 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2718 wont compile. This is used by the any applications that need to
2719 declare their own ASN1 modules. This was fixed by adding the option
2720 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2721 needed for static libraries under Win32.
2724 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2725 setting of purpose and trust fields. New X509_STORE trust and
2726 purpose functions and tidy up setting in other SSL functions.
2729 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2730 structure. These are inherited by X509_STORE_CTX when it is
2731 initialised. This allows various defaults to be set in the
2732 X509_STORE structure (such as flags for CRL checking and custom
2733 purpose or trust settings) for functions which only use X509_STORE_CTX
2734 internally such as S/MIME.
2736 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2737 trust settings if they are not set in X509_STORE. This allows X509_STORE
2738 purposes and trust (in S/MIME for example) to override any set by default.
2740 Add command line options for CRL checking to smime, s_client and s_server
2744 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2745 are set then the CRL is looked up in the X509_STORE structure and
2746 its validity and signature checked, then if the certificate is found
2747 in the CRL the verify fails with a revoked error.
2749 Various new CRL related callbacks added to X509_STORE_CTX structure.
2751 Command line options added to 'verify' application to support this.
2753 This needs some additional work, such as being able to handle multiple
2754 CRLs with different times, extension based lookup (rather than just
2755 by subject name) and ultimately more complete V2 CRL extension
2759 *) Add a general user interface API (crypto/ui/). This is designed
2760 to replace things like des_read_password and friends (backward
2761 compatibility functions using this new API are provided).
2762 The purpose is to remove prompting functions from the DES code
2763 section as well as provide for prompting through dialog boxes in
2764 a window system and the like.
2767 *) Add "ex_data" support to ENGINE so implementations can add state at a
2768 per-structure level rather than having to store it globally.
2771 *) Make it possible for ENGINE structures to be copied when retrieved by
2772 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2773 This causes the "original" ENGINE structure to act like a template,
2774 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2775 operational state can be localised to each ENGINE structure, despite the
2776 fact they all share the same "methods". New ENGINE structures returned in
2777 this case have no functional references and the return value is the single
2778 structural reference. This matches the single structural reference returned
2779 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2783 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2784 needs to match any other type at all we need to manually clear the
2788 *) Changes to the "openssl engine" utility to include;
2789 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2790 about an ENGINE's available control commands.
2791 - executing control commands from command line arguments using the
2792 '-pre' and '-post' switches. '-post' is only used if '-t' is
2793 specified and the ENGINE is successfully initialised. The syntax for
2794 the individual commands are colon-separated, for example;
2795 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2798 *) New dynamic control command support for ENGINEs. ENGINEs can now
2799 declare their own commands (numbers), names (strings), descriptions,
2800 and input types for run-time discovery by calling applications. A
2801 subset of these commands are implicitly classed as "executable"
2802 depending on their input type, and only these can be invoked through
2803 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2804 can be based on user input, config files, etc). The distinction is
2805 that "executable" commands cannot return anything other than a boolean
2806 result and can only support numeric or string input, whereas some
2807 discoverable commands may only be for direct use through
2808 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2809 pointers, or other custom uses. The "executable" commands are to
2810 support parameterisations of ENGINE behaviour that can be
2811 unambiguously defined by ENGINEs and used consistently across any
2812 OpenSSL-based application. Commands have been added to all the
2813 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2814 control over shared-library paths without source code alterations.
2817 *) Changed all ENGINE implementations to dynamically allocate their
2818 ENGINEs rather than declaring them statically. Apart from this being
2819 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2820 this also allows the implementations to compile without using the
2821 internal engine_int.h header.
2824 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2825 'const' value. Any code that should be able to modify a RAND_METHOD
2826 should already have non-const pointers to it (ie. they should only
2827 modify their own ones).
2830 *) Made a variety of little tweaks to the ENGINE code.
2831 - "atalla" and "ubsec" string definitions were moved from header files
2832 to C code. "nuron" string definitions were placed in variables
2833 rather than hard-coded - allowing parameterisation of these values
2834 later on via ctrl() commands.
2835 - Removed unused "#if 0"'d code.
2836 - Fixed engine list iteration code so it uses ENGINE_free() to release
2837 structural references.
2838 - Constified the RAND_METHOD element of ENGINE structures.
2839 - Constified various get/set functions as appropriate and added
2840 missing functions (including a catch-all ENGINE_cpy that duplicates
2841 all ENGINE values onto a new ENGINE except reference counts/state).
2842 - Removed NULL parameter checks in get/set functions. Setting a method
2843 or function to NULL is a way of cancelling out a previously set
2844 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2845 and doesn't justify the extra error symbols and code.
2846 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2847 flags from engine_int.h to engine.h.
2848 - Changed prototypes for ENGINE handler functions (init(), finish(),
2849 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2852 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2853 to the algorithm using long division. The binary algorithm can be
2854 used only if the modulus is odd. On 32-bit systems, it is faster
2855 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2856 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2857 up to 450 bits. In 64-bit environments, the binary algorithm
2858 appears to be advantageous for much longer moduli; here we use it
2859 for moduli up to 2048 bits.
2862 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2863 could not support the combine flag in choice fields.
2866 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2867 extensions from a certificate request to the certificate.
2870 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2871 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2872 file: this allows the display of the certificate about to be
2873 signed to be customised, to allow certain fields to be included
2874 or excluded and extension details. The old system didn't display
2875 multicharacter strings properly, omitted fields not in the policy
2876 and couldn't display additional details such as extensions.
2879 *) Function EC_POINTs_mul for multiple scalar multiplication
2880 of an arbitrary number of elliptic curve points
2881 \sum scalars[i]*points[i],
2882 optionally including the generator defined for the EC_GROUP:
2883 scalar*generator + \sum scalars[i]*points[i].
2885 EC_POINT_mul is a simple wrapper function for the typical case
2886 that the point list has just one item (besides the optional
2890 *) First EC_METHODs for curves over GF(p):
2892 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2893 operations and provides various method functions that can also
2894 operate with faster implementations of modular arithmetic.
2896 EC_GFp_mont_method() reuses most functions that are part of
2897 EC_GFp_simple_method, but uses Montgomery arithmetic.
2899 [Bodo Moeller; point addition and point doubling
2900 implementation directly derived from source code provided by
2901 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2903 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2904 crypto/ec/ec_lib.c):
2906 Curves are EC_GROUP objects (with an optional group generator)
2907 based on EC_METHODs that are built into the library.
2909 Points are EC_POINT objects based on EC_GROUP objects.
2911 Most of the framework would be able to handle curves over arbitrary
2912 finite fields, but as there are no obvious types for fields other
2913 than GF(p), some functions are limited to that for now.
2916 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2917 that the file contains a complete HTTP response.
2920 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2921 change the def and num file printf format specifier from "%-40sXXX"
2922 to "%-39s XXX". The latter will always guarantee a space after the
2923 field while the former will cause them to run together if the field
2924 is 40 of more characters long.
2927 *) Constify the cipher and digest 'method' functions and structures
2928 and modify related functions to take constant EVP_MD and EVP_CIPHER
2932 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2933 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2936 *) Modify EVP_Digest*() routines so they now return values. Although the
2937 internal software routines can never fail additional hardware versions
2941 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2943 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2944 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2947 ERR_R_NESTED_ASN1_ERROR
2949 ERR_R_MISSING_ASN1_EOS
2950 were 4 .. 9, conflicting with
2951 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2953 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2954 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2956 Add new error code 'ERR_R_INTERNAL_ERROR'.
2959 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2963 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2964 sets the subject name for a new request or supersedes the
2965 subject name in a given request. Formats that can be parsed are
2966 'CN=Some Name, OU=myOU, C=IT'
2968 'CN=Some Name/OU=myOU/C=IT'.
2970 Add options '-batch' and '-verbose' to 'openssl req'.
2971 [Massimiliano Pala <madwolf@hackmasters.net>]
2973 *) Introduce the possibility to access global variables through
2974 functions on platform were that's the best way to handle exporting
2975 global variables in shared libraries. To enable this functionality,
2976 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2977 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2978 is normally done by Configure or something similar).
2980 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2981 in the source file (foo.c) like this:
2983 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2984 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2986 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2987 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2989 OPENSSL_DECLARE_GLOBAL(int,foo);
2990 #define foo OPENSSL_GLOBAL_REF(foo)
2991 OPENSSL_DECLARE_GLOBAL(double,bar);
2992 #define bar OPENSSL_GLOBAL_REF(bar)
2994 The #defines are very important, and therefore so is including the
2995 header file everywhere where the defined globals are used.
2997 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2998 of ASN.1 items, but that structure is a bit different.
3000 The largest change is in util/mkdef.pl which has been enhanced with
3001 better and easier to understand logic to choose which symbols should
3002 go into the Windows .def files as well as a number of fixes and code
3003 cleanup (among others, algorithm keywords are now sorted
3004 lexicographically to avoid constant rewrites).
3007 *) In BN_div() keep a copy of the sign of 'num' before writing the
3008 result to 'rm' because if rm==num the value will be overwritten
3009 and produce the wrong result if 'num' is negative: this caused
3010 problems with BN_mod() and BN_nnmod().
3013 *) Function OCSP_request_verify(). This checks the signature on an
3014 OCSP request and verifies the signer certificate. The signer
3015 certificate is just checked for a generic purpose and OCSP request
3019 *) Add OCSP_check_validity() function to check the validity of OCSP
3020 responses. OCSP responses are prepared in real time and may only
3021 be a few seconds old. Simply checking that the current time lies
3022 between thisUpdate and nextUpdate max reject otherwise valid responses
3023 caused by either OCSP responder or client clock inaccuracy. Instead
3024 we allow thisUpdate and nextUpdate to fall within a certain period of
3025 the current time. The age of the response can also optionally be
3026 checked. Two new options -validity_period and -status_age added to
3030 *) If signature or public key algorithm is unrecognized print out its
3031 OID rather that just UNKNOWN.
3034 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3035 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3036 ID to be generated from the issuer certificate alone which can then be
3037 passed to OCSP_id_issuer_cmp().
3040 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3041 ASN1 modules to export functions returning ASN1_ITEM pointers
3042 instead of the ASN1_ITEM structures themselves. This adds several
3043 new macros which allow the underlying ASN1 function/structure to
3044 be accessed transparently. As a result code should not use ASN1_ITEM
3045 references directly (such as &X509_it) but instead use the relevant
3046 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3047 use of the new ASN1 code on platforms where exporting structures
3048 is problematical (for example in shared libraries) but exporting
3049 functions returning pointers to structures is not.
3052 *) Add support for overriding the generation of SSL/TLS session IDs.
3053 These callbacks can be registered either in an SSL_CTX or per SSL.
3054 The purpose of this is to allow applications to control, if they wish,
3055 the arbitrary values chosen for use as session IDs, particularly as it
3056 can be useful for session caching in multiple-server environments. A
3057 command-line switch for testing this (and any client code that wishes
3058 to use such a feature) has been added to "s_server".
3059 [Geoff Thorpe, Lutz Jaenicke]
3061 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3062 of the form '#if defined(...) || defined(...) || ...' and
3063 '#if !defined(...) && !defined(...) && ...'. This also avoids
3064 the growing number of special cases it was previously handling.
3067 *) Make all configuration macros available for application by making
3068 sure they are available in opensslconf.h, by giving them names starting
3069 with "OPENSSL_" to avoid conflicts with other packages and by making
3070 sure e_os2.h will cover all platform-specific cases together with
3072 Additionally, it is now possible to define configuration/platform-
3073 specific names (called "system identities"). In the C code, these
3074 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3075 macro with the name beginning with "OPENSSL_SYS_", which is determined
3076 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3080 *) New option -set_serial to 'req' and 'x509' this allows the serial
3081 number to use to be specified on the command line. Previously self
3082 signed certificates were hard coded with serial number 0 and the
3083 CA options of 'x509' had to use a serial number in a file which was
3087 *) New options to 'ca' utility to support V2 CRL entry extensions.
3088 Currently CRL reason, invalidity date and hold instruction are
3089 supported. Add new CRL extensions to V3 code and some new objects.
3092 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3093 disable standard block padding (aka PKCS#5 padding) in the EVP
3094 API, which was previously mandatory. This means that the data is
3095 not padded in any way and so the total length much be a multiple
3096 of the block size, otherwise an error occurs.
3099 *) Initial (incomplete) OCSP SSL support.
3102 *) New function OCSP_parse_url(). This splits up a URL into its host,
3103 port and path components: primarily to parse OCSP URLs. New -url
3104 option to ocsp utility.
3107 *) New nonce behavior. The return value of OCSP_check_nonce() now
3108 reflects the various checks performed. Applications can decide
3109 whether to tolerate certain situations such as an absent nonce
3110 in a response when one was present in a request: the ocsp application
3111 just prints out a warning. New function OCSP_add1_basic_nonce()
3112 this is to allow responders to include a nonce in a response even if
3113 the request is nonce-less.
3116 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3117 skipped when using openssl x509 multiple times on a single input file,
3118 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3121 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3122 set string type: to handle setting ASN1_TIME structures. Fix ca
3123 utility to correctly initialize revocation date of CRLs.
3126 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3127 the clients preferred ciphersuites and rather use its own preferences.
3128 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3129 Internet Explorer by ensuring unchanged hash method during stepup.
3130 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3133 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3134 to aes and add a new 'exist' option to print out symbols that don't
3138 *) Additional options to ocsp utility to allow flags to be set and
3139 additional certificates supplied.
3142 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3143 OCSP client a number of certificate to only verify the response
3147 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3148 handle the new API. Currently only ECB, CBC modes supported. Add new
3151 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3152 Encryption Standard (AES) Ciphersuites for Transport Layer
3153 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3154 not enabled by default and were not part of the "ALL" ciphersuite
3155 alias because they were not yet official; they could be
3156 explicitly requested by specifying the "AESdraft" ciphersuite
3157 group alias. In the final release of OpenSSL 0.9.7, the group
3158 alias is called "AES" and is part of "ALL".)
3159 [Ben Laurie, Steve Henson, Bodo Moeller]
3161 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3162 request to response.
3165 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3166 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3167 extract information from a certificate request. OCSP_response_create()
3168 creates a response and optionally adds a basic response structure.
3169 OCSP_basic_add1_status() adds a complete single response to a basic
3170 response and returns the OCSP_SINGLERESP structure just added (to allow
3171 extensions to be included for example). OCSP_basic_add1_cert() adds a
3172 certificate to a basic response and OCSP_basic_sign() signs a basic
3173 response with various flags. New helper functions ASN1_TIME_check()
3174 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3175 (converts ASN1_TIME to GeneralizedTime).
3178 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3179 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3180 structure from a certificate. X509_pubkey_digest() digests the public_key
3181 contents: this is used in various key identifiers.
3184 *) Make sk_sort() tolerate a NULL argument.
3185 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3187 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3188 passed by the function are trusted implicitly. If any of them signed the
3189 response then it is assumed to be valid and is not verified.
3192 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3193 to data. This was previously part of the PKCS7 ASN1 code. This
3194 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3195 [Steve Henson, reported by Kenneth R. Robinette
3196 <support@securenetterm.com>]
3198 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3199 routines: without these tracing memory leaks is very painful.
3200 Fix leaks in PKCS12 and PKCS7 routines.
3203 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3204 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3205 effectively meant GeneralizedTime would never be used. Now it
3206 is initialised to -1 but X509_time_adj() now has to check the value
3207 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3208 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3209 [Steve Henson, reported by Kenneth R. Robinette
3210 <support@securenetterm.com>]
3212 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3213 result in a zero length in the ASN1_INTEGER structure which was
3214 not consistent with the structure when d2i_ASN1_INTEGER() was used
3215 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3216 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3217 where it did not print out a minus for negative ASN1_INTEGER.
3220 *) Add summary printout to ocsp utility. The various functions which
3221 convert status values to strings have been renamed to:
3222 OCSP_response_status_str(), OCSP_cert_status_str() and
3223 OCSP_crl_reason_str() and are no longer static. New options
3224 to verify nonce values and to disable verification. OCSP response
3225 printout format cleaned up.
3228 *) Add additional OCSP certificate checks. These are those specified
3229 in RFC2560. This consists of two separate checks: the CA of the
3230 certificate being checked must either be the OCSP signer certificate
3231 or the issuer of the OCSP signer certificate. In the latter case the
3232 OCSP signer certificate must contain the OCSP signing extended key
3233 usage. This check is performed by attempting to match the OCSP
3234 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3235 in the OCSP_CERTID structures of the response.
3238 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3239 and related routines. This uses the standard OpenSSL certificate
3240 verify routines to perform initial checks (just CA validity) and
3241 to obtain the certificate chain. Then additional checks will be
3242 performed on the chain. Currently the root CA is checked to see
3243 if it is explicitly trusted for OCSP signing. This is used to set
3244 a root CA as a global signing root: that is any certificate that
3245 chains to that CA is an acceptable OCSP signing certificate.
3248 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3249 extensions from a separate configuration file.
3250 As when reading extensions from the main configuration file,
3251 the '-extensions ...' option may be used for specifying the
3253 [Massimiliano Pala <madwolf@comune.modena.it>]
3255 *) New OCSP utility. Allows OCSP requests to be generated or
3256 read. The request can be sent to a responder and the output
3257 parsed, outputed or printed in text form. Not complete yet:
3258 still needs to check the OCSP response validity.
3261 *) New subcommands for 'openssl ca':
3262 'openssl ca -status <serial>' prints the status of the cert with
3263 the given serial number (according to the index file).
3264 'openssl ca -updatedb' updates the expiry status of certificates
3266 [Massimiliano Pala <madwolf@comune.modena.it>]
3268 *) New '-newreq-nodes' command option to CA.pl. This is like
3269 '-newreq', but calls 'openssl req' with the '-nodes' option
3270 so that the resulting key is not encrypted.
3271 [Damien Miller <djm@mindrot.org>]
3273 *) New configuration for the GNU Hurd.
3274 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3276 *) Initial code to implement OCSP basic response verify. This
3277 is currently incomplete. Currently just finds the signer's
3278 certificate and verifies the signature on the response.
3281 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3282 value of OPENSSLDIR. This is available via the new '-d' option
3283 to 'openssl version', and is also included in 'openssl version -a'.
3286 *) Allowing defining memory allocation callbacks that will be given
3287 file name and line number information in additional arguments
3288 (a const char* and an int). The basic functionality remains, as
3289 well as the original possibility to just replace malloc(),
3290 realloc() and free() by functions that do not know about these
3291 additional arguments. To register and find out the current
3292 settings for extended allocation functions, the following
3293 functions are provided:
3295 CRYPTO_set_mem_ex_functions
3296 CRYPTO_set_locked_mem_ex_functions
3297 CRYPTO_get_mem_ex_functions
3298 CRYPTO_get_locked_mem_ex_functions
3300 These work the same way as CRYPTO_set_mem_functions and friends.
3301 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3302 extended allocation function is enabled.
3303 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3304 a conventional allocation function is enabled.
3305 [Richard Levitte, Bodo Moeller]
3307 *) Finish off removing the remaining LHASH function pointer casts.
3308 There should no longer be any prototype-casting required when using
3309 the LHASH abstraction, and any casts that remain are "bugs". See
3310 the callback types and macros at the head of lhash.h for details
3311 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3314 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3315 If /dev/[u]random devices are not available or do not return enough
3316 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3318 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3319 /etc/entropy will be queried once each in this sequence, quering stops
3320 when enough entropy was collected without querying more sockets.
3323 *) Change the Unix RAND_poll() variant to be able to poll several
3324 random devices, as specified by DEVRANDOM, until a sufficient amount
3325 of data has been collected. We spend at most 10 ms on each file
3326 (select timeout) and read in non-blocking mode. DEVRANDOM now
3327 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3328 (previously it was just the string "/dev/urandom"), so on typical
3329 platforms the 10 ms delay will never occur.
3330 Also separate out the Unix variant to its own file, rand_unix.c.
3331 For VMS, there's a currently-empty rand_vms.c.
3334 *) Move OCSP client related routines to ocsp_cl.c. These
3335 provide utility functions which an application needing
3336 to issue a request to an OCSP responder and analyse the
3337 response will typically need: as opposed to those which an
3338 OCSP responder itself would need which will be added later.
3340 OCSP_request_sign() signs an OCSP request with an API similar
3341 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3342 response. OCSP_response_get1_basic() extracts basic response
3343 from response. OCSP_resp_find_status(): finds and extracts status
3344 information from an OCSP_CERTID structure (which will be created
3345 when the request structure is built). These are built from lower
3346 level functions which work on OCSP_SINGLERESP structures but
3347 wont normally be used unless the application wishes to examine
3348 extensions in the OCSP response for example.
3350 Replace nonce routines with a pair of functions.
3351 OCSP_request_add1_nonce() adds a nonce value and optionally
3352 generates a random value. OCSP_check_nonce() checks the
3353 validity of the nonce in an OCSP response.
3356 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3357 This doesn't copy the supplied OCSP_CERTID and avoids the
3358 need to free up the newly created id. Change return type
3359 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3360 This can then be used to add extensions to the request.
3361 Deleted OCSP_request_new(), since most of its functionality
3362 is now in OCSP_REQUEST_new() (and the case insensitive name
3363 clash) apart from the ability to set the request name which
3364 will be added elsewhere.
3367 *) Update OCSP API. Remove obsolete extensions argument from
3368 various functions. Extensions are now handled using the new
3369 OCSP extension code. New simple OCSP HTTP function which
3370 can be used to send requests and parse the response.
3373 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3374 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3375 uses the special reorder version of SET OF to sort the attributes
3376 and reorder them to match the encoded order. This resolves a long
3377 standing problem: a verify on a PKCS7 structure just after signing
3378 it used to fail because the attribute order did not match the
3379 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3380 it uses the received order. This is necessary to tolerate some broken
3381 software that does not order SET OF. This is handled by encoding
3382 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3383 to produce the required SET OF.
3386 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3387 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3388 files to get correct declarations of the ASN.1 item variables.
3391 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3392 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3393 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3394 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3395 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3396 ASN1_ITEM and no wrapper functions.
3399 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3400 replace the old function pointer based I/O routines. Change most of
3401 the *_d2i_bio() and *_d2i_fp() functions to use these.
3404 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3405 lines, recognice more "algorithms" that can be deselected, and make
3406 it complain about algorithm deselection that isn't recognised.
3409 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3410 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3411 to use new functions. Add NO_ASN1_OLD which can be set to remove
3412 some old style ASN1 functions: this can be used to determine if old
3413 code will still work when these eventually go away.
3416 *) New extension functions for OCSP structures, these follow the
3417 same conventions as certificates and CRLs.
3420 *) New function X509V3_add1_i2d(). This automatically encodes and
3421 adds an extension. Its behaviour can be customised with various
3422 flags to append, replace or delete. Various wrappers added for
3423 certifcates and CRLs.
3426 *) Fix to avoid calling the underlying ASN1 print routine when
3427 an extension cannot be parsed. Correct a typo in the
3428 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3431 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3432 entries for variables.
3435 *) Add functionality to apps/openssl.c for detecting locking
3436 problems: As the program is single-threaded, all we have
3437 to do is register a locking callback using an array for
3438 storing which locks are currently held by the program.
3441 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3442 SSL_get_ex_data_X509_STORE_idx(), which is used in
3443 ssl_verify_cert_chain() and thus can be called at any time
3444 during TLS/SSL handshakes so that thread-safety is essential.
3445 Unfortunately, the ex_data design is not at all suited
3446 for multi-threaded use, so it probably should be abolished.
3449 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3450 [Broadcom, tweaked and integrated by Geoff Thorpe]
3452 *) Move common extension printing code to new function
3453 X509V3_print_extensions(). Reorganise OCSP print routines and
3454 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3457 *) New function X509_signature_print() to remove duplication in some
3461 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3462 set (this was treated exactly the same as SET OF previously). This
3463 is used to reorder the STACK representing the structure to match the
3464 encoding. This will be used to get round a problem where a PKCS7
3465 structure which was signed could not be verified because the STACK
3466 order did not reflect the encoded order.
3469 *) Reimplement the OCSP ASN1 module using the new code.
3472 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3473 for its ASN1 operations. The old style function pointers still exist
3474 for now but they will eventually go away.
3477 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3478 completely replaces the old ASN1 functionality with a table driven
3479 encoder and decoder which interprets an ASN1_ITEM structure describing
3480 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3481 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3482 has also been converted to the new form.
3485 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3486 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3487 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3488 for negative moduli.
3491 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3492 of not touching the result's sign bit.
3495 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3499 *) Changed the LHASH code to use prototypes for callbacks, and created
3500 macros to declare and implement thin (optionally static) functions
3501 that provide type-safety and avoid function pointer casting for the
3502 type-specific callbacks.
3505 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3507 [Veers Staats <staatsvr@asc.hpc.mil>,
3508 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3510 *) Reformat the FAQ so the different questions and answers can be divided
3511 in sections depending on the subject.
3514 *) Have the zlib compression code load ZLIB.DLL dynamically under
3518 *) New function BN_mod_sqrt for computing square roots modulo a prime
3519 (using the probabilistic Tonelli-Shanks algorithm unless
3520 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3521 be handled deterministically).
3522 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3524 *) Make BN_mod_inverse faster by explicitly handling small quotients
3525 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3526 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3529 *) New function BN_kronecker.
3532 *) Fix BN_gcd so that it works on negative inputs; the result is
3533 positive unless both parameters are zero.
3534 Previously something reasonably close to an infinite loop was
3535 possible because numbers could be growing instead of shrinking
3536 in the implementation of Euclid's algorithm.
3539 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3540 sign of the number in question.
3542 Fix BN_is_word(a,w) to work correctly for w == 0.
3544 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3545 because its test if the absolute value of 'a' equals 'w'.
3546 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3547 it exists mostly for use in the implementations of BN_is_zero(),
3548 BN_is_one(), and BN_is_word().
3551 *) New function BN_swap.
3554 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3555 the exponentiation functions are more likely to produce reasonable
3556 results on negative inputs.
3559 *) Change BN_mod_mul so that the result is always non-negative.
3560 Previously, it could be negative if one of the factors was negative;
3561 I don't think anyone really wanted that behaviour.
3564 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3565 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3566 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3567 and add new functions:
3576 BN_mod_lshift1_quick
3580 These functions always generate non-negative results.
3582 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3583 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3585 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3586 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3587 be reduced modulo m.
3588 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3591 The following entry accidentily appeared in the CHANGES file
3592 distributed with OpenSSL 0.9.7. The modifications described in
3593 it do *not* apply to OpenSSL 0.9.7.
3595 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3596 was actually never needed) and in BN_mul(). The removal in BN_mul()
3597 required a small change in bn_mul_part_recursive() and the addition
3598 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3599 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3600 bn_sub_words() and bn_add_words() except they take arrays with
3605 *) In 'openssl passwd', verify passwords read from the terminal
3606 unless the '-salt' option is used (which usually means that
3607 verification would just waste user's time since the resulting
3608 hash is going to be compared with some given password hash)
3609 or the new '-noverify' option is used.
3611 This is an incompatible change, but it does not affect
3612 non-interactive use of 'openssl passwd' (passwords on the command
3613 line, '-stdin' option, '-in ...' option) and thus should not
3617 *) Remove all references to RSAref, since there's no more need for it.
3620 *) Make DSO load along a path given through an environment variable
3621 (SHLIB_PATH) with shl_load().
3624 *) Constify the ENGINE code as a result of BIGNUM constification.
3625 Also constify the RSA code and most things related to it. In a
3626 few places, most notable in the depth of the ASN.1 code, ugly
3627 casts back to non-const were required (to be solved at a later
3631 *) Make it so the openssl application has all engines loaded by default.
3634 *) Constify the BIGNUM routines a little more.
3637 *) Add the following functions:
3639 ENGINE_load_cswift()
3641 ENGINE_load_atalla()
3643 ENGINE_load_builtin_engines()
3645 That way, an application can itself choose if external engines that
3646 are built-in in OpenSSL shall ever be used or not. The benefit is
3647 that applications won't have to be linked with libdl or other dso
3648 libraries unless it's really needed.
3650 Changed 'openssl engine' to load all engines on demand.
3651 Changed the engine header files to avoid the duplication of some
3652 declarations (they differed!).
3655 *) 'openssl engine' can now list capabilities.
3658 *) Better error reporting in 'openssl engine'.
3661 *) Never call load_dh_param(NULL) in s_server.
3664 *) Add engine application. It can currently list engines by name and
3665 identity, and test if they are actually available.
3668 *) Improve RPM specification file by forcing symbolic linking and making
3669 sure the installed documentation is also owned by root.root.
3670 [Damien Miller <djm@mindrot.org>]
3672 *) Give the OpenSSL applications more possibilities to make use of
3673 keys (public as well as private) handled by engines.
3676 *) Add OCSP code that comes from CertCo.
3679 *) Add VMS support for the Rijndael code.
3682 *) Added untested support for Nuron crypto accelerator.
3685 *) Add support for external cryptographic devices. This code was
3686 previously distributed separately as the "engine" branch.
3687 [Geoff Thorpe, Richard Levitte]
3689 *) Rework the filename-translation in the DSO code. It is now possible to
3690 have far greater control over how a "name" is turned into a filename
3691 depending on the operating environment and any oddities about the
3692 different shared library filenames on each system.
3695 *) Support threads on FreeBSD-elf in Configure.
3698 *) Fix for SHA1 assembly problem with MASM: it produces
3699 warnings about corrupt line number information when assembling
3700 with debugging information. This is caused by the overlapping
3702 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3705 NCONF_get_number() has no error checking at all. As a replacement,
3706 NCONF_get_number_e() is defined (_e for "error checking") and is
3707 promoted strongly. The old NCONF_get_number is kept around for
3708 binary backward compatibility.
3709 Make it possible for methods to load from something other than a BIO,
3710 by providing a function pointer that is given a name instead of a BIO.
3711 For example, this could be used to load configuration data from an
3715 *) Fix for non blocking accept BIOs. Added new I/O special reason
3716 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3717 with non blocking I/O was not possible because no retry code was
3718 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3722 *) Added the beginnings of Rijndael support.
3725 *) Fix for bug in DirectoryString mask setting. Add support for
3726 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3727 to allow certificate printing to more controllable, additional
3728 'certopt' option to 'x509' to allow new printing options to be
3732 *) Clean old EAY MD5 hack from e_os.h.
3735 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3737 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3738 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3739 [Joe Orton, Steve Henson]
3741 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3743 *) Fix additional bug revealed by the NISCC test suite:
3745 Stop bug triggering large recursion when presented with
3746 certain ASN.1 tags (CVE-2003-0851)
3749 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3751 *) Fix various bugs revealed by running the NISCC test suite:
3753 Stop out of bounds reads in the ASN1 code when presented with
3754 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3756 If verify callback ignores invalid public key errors don't try to check
3757 certificate signature with the NULL public key.
3761 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3762 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3766 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3767 extra data after the compression methods not only for TLS 1.0
3768 but also for SSL 3.0 (as required by the specification).
3769 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3771 *) Change X509_certificate_type() to mark the key as exported/exportable
3772 when it's 512 *bits* long, not 512 bytes.
3775 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3777 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3778 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3779 a protocol version number mismatch like a decryption error
3780 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3783 *) Turn on RSA blinding by default in the default implementation
3784 to avoid a timing attack. Applications that don't want it can call
3785 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3786 They would be ill-advised to do so in most cases.
3787 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3789 *) Change RSA blinding code so that it works when the PRNG is not
3790 seeded (in this case, the secret RSA exponent is abused as
3791 an unpredictable seed -- if it is not unpredictable, there
3792 is no point in blinding anyway). Make RSA blinding thread-safe
3793 by remembering the creator's thread ID in rsa->blinding and
3794 having all other threads use local one-time blinding factors
3795 (this requires more computation than sharing rsa->blinding, but
3796 avoids excessive locking; and if an RSA object is not shared
3797 between threads, blinding will still be very fast).
3800 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3802 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3803 via timing by performing a MAC computation even if incorrrect
3804 block cipher padding has been found. This is a countermeasure
3805 against active attacks where the attacker has to distinguish
3806 between bad padding and a MAC verification error. (CVE-2003-0078)
3808 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3809 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3810 Martin Vuagnoux (EPFL, Ilion)]
3812 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3814 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3815 memory from it's contents. This is done with a counter that will
3816 place alternating values in each byte. This can be used to solve
3817 two issues: 1) the removal of calls to memset() by highly optimizing
3818 compilers, and 2) cleansing with other values than 0, since those can
3819 be read through on certain media, for example a swap space on disk.
3822 *) Bugfix: client side session caching did not work with external caching,
3823 because the session->cipher setting was not restored when reloading
3824 from the external cache. This problem was masked, when
3825 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3826 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3829 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3830 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3831 [Zeev Lieber <zeev-l@yahoo.com>]
3833 *) Undo an undocumented change introduced in 0.9.6e which caused
3834 repeated calls to OpenSSL_add_all_ciphers() and
3835 OpenSSL_add_all_digests() to be ignored, even after calling
3839 *) Change the default configuration reader to deal with last line not
3840 being properly terminated.
3843 *) Change X509_NAME_cmp() so it applies the special rules on handling
3844 DN values that are of type PrintableString, as well as RDNs of type
3845 emailAddress where the value has the type ia5String.
3846 [stefank@valicert.com via Richard Levitte]
3848 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3849 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3850 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3851 the bitwise-OR of the two for use by the majority of applications
3852 wanting this behaviour, and update the docs. The documented
3853 behaviour and actual behaviour were inconsistent and had been
3854 changing anyway, so this is more a bug-fix than a behavioural
3856 [Geoff Thorpe, diagnosed by Nadav Har'El]
3858 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3859 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3862 *) Fix initialization code race conditions in
3863 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3864 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3865 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3866 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3867 ssl2_get_cipher_by_char(),
3868 ssl3_get_cipher_by_char().
3869 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3871 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3872 the cached sessions are flushed, as the remove_cb() might use ex_data
3873 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3874 (see [openssl.org #212]).
3875 [Geoff Thorpe, Lutz Jaenicke]
3877 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3878 length, instead of the encoding length to d2i_ASN1_OBJECT.
3881 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3883 *) [In 0.9.6g-engine release:]
3884 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3885 [Lynn Gazis <lgazis@rainbow.com>]
3887 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3889 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3890 and get fix the header length calculation.
3891 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3892 Alon Kantor <alonk@checkpoint.com> (and others),
3895 *) Use proper error handling instead of 'assertions' in buffer
3896 overflow checks added in 0.9.6e. This prevents DoS (the
3897 assertions could call abort()).
3898 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3900 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3902 *) Add various sanity checks to asn1_get_length() to reject
3903 the ASN1 length bytes if they exceed sizeof(long), will appear
3904 negative or the content length exceeds the length of the
3906 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3908 *) Fix cipher selection routines: ciphers without encryption had no flags
3909 for the cipher strength set and where therefore not handled correctly
3910 by the selection routines (PR #130).
3913 *) Fix EVP_dsa_sha macro.
3917 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3918 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3919 that was added in OpenSSL 0.9.6d.
3921 As the countermeasure turned out to be incompatible with some
3922 broken SSL implementations, the new option is part of SSL_OP_ALL.
3923 SSL_OP_ALL is usually employed when compatibility with weird SSL
3924 implementations is desired (e.g. '-bugs' option to 's_client' and
3925 's_server'), so the new option is automatically set in many
3929 *) Changes in security patch:
3931 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3932 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3933 Air Force Materiel Command, USAF, under agreement number
3936 *) Add various sanity checks to asn1_get_length() to reject
3937 the ASN1 length bytes if they exceed sizeof(long), will appear
3938 negative or the content length exceeds the length of the
3939 supplied buffer. (CVE-2002-0659)
3940 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3942 *) Assertions for various potential buffer overflows, not known to
3944 [Ben Laurie (CHATS)]
3946 *) Various temporary buffers to hold ASCII versions of integers were
3947 too small for 64 bit platforms. (CVE-2002-0655)
3948 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3950 *) Remote buffer overflow in SSL3 protocol - an attacker could
3951 supply an oversized session ID to a client. (CVE-2002-0656)
3952 [Ben Laurie (CHATS)]
3954 *) Remote buffer overflow in SSL2 protocol - an attacker could
3955 supply an oversized client master key. (CVE-2002-0656)
3956 [Ben Laurie (CHATS)]
3958 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3960 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3961 encoded as NULL) with id-dsa-with-sha1.
3962 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3964 *) Check various X509_...() return values in apps/req.c.
3965 [Nils Larsch <nla@trustcenter.de>]
3967 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3968 an end-of-file condition would erronously be flagged, when the CRLF
3969 was just at the end of a processed block. The bug was discovered when
3970 processing data through a buffering memory BIO handing the data to a
3971 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3972 <ptsekov@syntrex.com> and Nedelcho Stanev.
3975 *) Implement a countermeasure against a vulnerability recently found
3976 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3977 before application data chunks to avoid the use of known IVs
3978 with data potentially chosen by the attacker.
3981 *) Fix length checks in ssl3_get_client_hello().
3984 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3985 to prevent ssl3_read_internal() from incorrectly assuming that
3986 ssl3_read_bytes() found application data while handshake
3987 processing was enabled when in fact s->s3->in_read_app_data was
3988 merely automatically cleared during the initial handshake.
3989 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3991 *) Fix object definitions for Private and Enterprise: they were not
3992 recognized in their shortname (=lowercase) representation. Extend
3993 obj_dat.pl to issue an error when using undefined keywords instead
3994 of silently ignoring the problem (Svenning Sorensen
3995 <sss@sss.dnsalias.net>).
3998 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3999 generators, i.e. generators other than 2 and 5. (Previously, the
4000 code did not properly initialise the 'add' and 'rem' values to
4001 BN_generate_prime().)
4003 In the new general case, we do not insist that 'generator' is
4004 actually a primitive root: This requirement is rather pointless;
4005 a generator of the order-q subgroup is just as good, if not
4009 *) Map new X509 verification errors to alerts. Discovered and submitted by
4010 Tom Wu <tom@arcot.com>.
4013 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4014 returning non-zero before the data has been completely received
4015 when using non-blocking I/O.
4016 [Bodo Moeller; problem pointed out by John Hughes]
4018 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4019 [Ben Laurie, Lutz Jaenicke]
4021 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4022 Yoram Zahavi <YoramZ@gilian.com>).
4025 *) Add information about CygWin 1.3 and on, and preserve proper
4026 configuration for the versions before that.
4027 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4029 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4030 check whether we deal with a copy of a session and do not delete from
4031 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4032 <izhar@checkpoint.com>.
4035 *) Do not store session data into the internal session cache, if it
4036 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4037 flag is set). Proposed by Aslam <aslam@funk.com>.
4040 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4044 *) [In 0.9.6d-engine release:]
4045 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4046 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4048 *) Add the configuration target linux-s390x.
4049 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4051 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4052 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4053 variable as an indication that a ClientHello message has been
4054 received. As the flag value will be lost between multiple
4055 invocations of ssl3_accept when using non-blocking I/O, the
4056 function may not be aware that a handshake has actually taken
4057 place, thus preventing a new session from being added to the
4060 To avoid this problem, we now set s->new_session to 2 instead of
4061 using a local variable.
4062 [Lutz Jaenicke, Bodo Moeller]
4064 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4065 if the SSL_R_LENGTH_MISMATCH error is detected.
4066 [Geoff Thorpe, Bodo Moeller]
4068 *) New 'shared_ldflag' column in Configure platform table.
4071 *) Fix EVP_CIPHER_mode macro.
4072 ["Dan S. Camper" <dan@bti.net>]
4074 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4075 type, we must throw them away by setting rr->length to 0.
4076 [D P Chang <dpc@qualys.com>]
4078 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4080 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4081 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4082 worked incorrectly for those cases where range = 10..._2 and
4083 3*range is two bits longer than range.)
4086 *) Only add signing time to PKCS7 structures if it is not already
4090 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4091 OBJ_ld_ce should be OBJ_id_ce.
4092 Also some ip-pda OIDs in crypto/objects/objects.txt were
4093 incorrect (cf. RFC 3039).
4094 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4096 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4097 returns early because it has nothing to do.
4098 [Andy Schneider <andy.schneider@bjss.co.uk>]
4100 *) [In 0.9.6c-engine release:]
4101 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4102 [Andy Schneider <andy.schneider@bjss.co.uk>]
4104 *) [In 0.9.6c-engine release:]
4105 Add support for Cryptographic Appliance's keyserver technology.
4106 (Use engine 'keyclient')
4107 [Cryptographic Appliances and Geoff Thorpe]
4109 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4110 is called via tools/c89.sh because arguments have to be
4111 rearranged (all '-L' options must appear before the first object
4113 [Richard Shapiro <rshapiro@abinitio.com>]
4115 *) [In 0.9.6c-engine release:]
4116 Add support for Broadcom crypto accelerator cards, backported
4118 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4120 *) [In 0.9.6c-engine release:]
4121 Add support for SureWare crypto accelerator cards from
4122 Baltimore Technologies. (Use engine 'sureware')
4123 [Baltimore Technologies and Mark Cox]
4125 *) [In 0.9.6c-engine release:]
4126 Add support for crypto accelerator cards from Accelerated
4127 Encryption Processing, www.aep.ie. (Use engine 'aep')
4128 [AEP Inc. and Mark Cox]
4130 *) Add a configuration entry for gcc on UnixWare.
4131 [Gary Benson <gbenson@redhat.com>]
4133 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4134 messages are stored in a single piece (fixed-length part and
4135 variable-length part combined) and fix various bugs found on the way.
4138 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4139 instead. BIO_gethostbyname() does not know what timeouts are
4140 appropriate, so entries would stay in cache even when they have
4142 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4144 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4145 faced with a pathologically small ClientHello fragment that does
4146 not contain client_version: Instead of aborting with an error,
4147 simply choose the highest available protocol version (i.e.,
4148 TLS 1.0 unless it is disabled). In practice, ClientHello
4149 messages are never sent like this, but this change gives us
4150 strictly correct behaviour at least for TLS.
4153 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4154 never resets s->method to s->ctx->method when called from within
4155 one of the SSL handshake functions.
4156 [Bodo Moeller; problem pointed out by Niko Baric]
4158 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4159 (sent using the client's version number) if client_version is
4160 smaller than the protocol version in use. Also change
4161 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4162 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4163 the client will at least see that alert.
4166 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4170 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4171 client receives HelloRequest while in a handshake.
4172 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4174 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4175 should end in 'break', not 'goto end' which circuments various
4176 cleanups done in state SSL_ST_OK. But session related stuff
4177 must be disabled for SSL_ST_OK in the case that we just sent a
4180 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4181 before just sending a HelloRequest.
4182 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4184 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4185 reveal whether illegal block cipher padding was found or a MAC
4186 verification error occured. (Neither SSLerr() codes nor alerts
4187 are directly visible to potential attackers, but the information
4188 may leak via logfiles.)
4190 Similar changes are not required for the SSL 2.0 implementation
4191 because the number of padding bytes is sent in clear for SSL 2.0,
4192 and the extra bytes are just ignored. However ssl/s2_pkt.c
4193 failed to verify that the purported number of padding bytes is in
4197 *) Add OpenUNIX-8 support including shared libraries
4198 (Boyd Lynn Gerber <gerberb@zenez.com>).
4201 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4202 'wristwatch attack' using huge encoding parameters (cf.
4203 James H. Manger's CRYPTO 2001 paper). Note that the
4204 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4205 encoding parameters and hence was not vulnerable.
4208 *) BN_sqr() bug fix.
4209 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4211 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4212 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4213 followed by modular reduction.
4214 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4216 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4217 equivalent based on BN_pseudo_rand() instead of BN_rand().
4220 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4221 This function was broken, as the check for a new client hello message
4222 to handle SGC did not allow these large messages.
4223 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4226 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4229 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4230 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4233 *) Rework the configuration and shared library support for Tru64 Unix.
4234 The configuration part makes use of modern compiler features and
4235 still retains old compiler behavior for those that run older versions
4236 of the OS. The shared library support part includes a variant that
4237 uses the RPATH feature, and is available through the special
4238 configuration target "alpha-cc-rpath", which will never be selected
4240 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4242 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4243 with the same message size as in ssl3_get_certificate_request().
4244 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4245 messages might inadvertently be reject as too long.
4246 [Petr Lampa <lampa@fee.vutbr.cz>]
4248 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4251 *) Modified SSL library such that the verify_callback that has been set
4252 specificly for an SSL object with SSL_set_verify() is actually being
4253 used. Before the change, a verify_callback set with this function was
4254 ignored and the verify_callback() set in the SSL_CTX at the time of
4255 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4256 to allow the necessary settings.
4259 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4260 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4261 done automatically (in contradiction to the requirements of the C
4262 standard). This made problems when used from OpenSSH.
4265 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4266 dh->length and always used
4268 BN_rand_range(priv_key, dh->p).
4270 BN_rand_range() is not necessary for Diffie-Hellman, and this
4271 specific range makes Diffie-Hellman unnecessarily inefficient if
4272 dh->length (recommended exponent length) is much smaller than the
4273 length of dh->p. We could use BN_rand_range() if the order of
4274 the subgroup was stored in the DH structure, but we only have
4279 BN_rand(priv_key, l, ...)
4281 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4287 RSA_eay_public_encrypt
4288 RSA_eay_private_decrypt
4289 RSA_eay_private_encrypt (signing)
4290 RSA_eay_public_decrypt (signature verification)
4292 (default implementations for RSA_public_encrypt,
4293 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4294 always reject numbers >= n.
4297 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4298 to synchronize access to 'locking_thread'. This is necessary on
4299 systems where access to 'locking_thread' (an 'unsigned long'
4300 variable) is not atomic.
4303 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4304 *before* setting the 'crypto_lock_rand' flag. The previous code had
4305 a race condition if 0 is a valid thread ID.
4306 [Travis Vitek <vitek@roguewave.com>]
4308 *) Add support for shared libraries under Irix.
4309 [Albert Chin-A-Young <china@thewrittenword.com>]
4311 *) Add configuration option to build on Linux on both big-endian and
4313 [Ralf Baechle <ralf@uni-koblenz.de>]
4315 *) Add the possibility to create shared libraries on HP-UX.
4318 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4320 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4321 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4322 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4323 PRNG state recovery was possible based on the output of
4324 one PRNG request appropriately sized to gain knowledge on
4325 'md' followed by enough consecutive 1-byte PRNG requests
4326 to traverse all of 'state'.
4328 1. When updating 'md_local' (the current thread's copy of 'md')
4329 during PRNG output generation, hash all of the previous
4330 'md_local' value, not just the half used for PRNG output.
4332 2. Make the number of bytes from 'state' included into the hash
4333 independent from the number of PRNG bytes requested.
4335 The first measure alone would be sufficient to avoid
4336 Markku-Juhani's attack. (Actually it had never occurred
4337 to me that the half of 'md_local' used for chaining was the
4338 half from which PRNG output bytes were taken -- I had always
4339 assumed that the secret half would be used.) The second
4340 measure makes sure that additional data from 'state' is never
4341 mixed into 'md_local' in small portions; this heuristically
4342 further strengthens the PRNG.
4345 *) Fix crypto/bn/asm/mips3.s.
4348 *) When only the key is given to "enc", the IV is undefined. Print out
4349 an error message in this case.
4352 *) Handle special case when X509_NAME is empty in X509 printing routines.
4355 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4356 positive and less than q.
4359 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4360 used: it isn't thread safe and the add_lock_callback should handle
4362 [Paul Rose <Paul.Rose@bridge.com>]
4364 *) Verify that incoming data obeys the block size in
4365 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4369 [Ulf Möller, Bodo Möller]
4371 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4372 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4373 when fixing the server behaviour for backwards-compatible 'client
4374 hello' messages. (Note that the attack is impractical against
4375 SSL 3.0 and TLS 1.0 anyway because length and version checking
4376 means that the probability of guessing a valid ciphertext is
4377 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4380 Before 0.9.5, the countermeasure (hide the error by generating a
4381 random 'decryption result') did not work properly because
4382 ERR_clear_error() was missing, meaning that SSL_get_error() would
4383 detect the supposedly ignored error.
4385 Both problems are now fixed.
4388 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4389 (previously it was 1024).
4392 *) Fix for compatibility mode trust settings: ignore trust settings
4393 unless some valid trust or reject settings are present.
4396 *) Fix for blowfish EVP: its a variable length cipher.
4399 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4400 parameters in DSA public key structures and return an error in the
4401 DSA routines if parameters are absent.
4404 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4405 in the current directory if neither $RANDFILE nor $HOME was set.
4406 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4407 caused some confusion to Windows users who haven't defined $HOME.
4408 Thus RAND_file_name() is changed again: e_os.h can define a
4409 DEFAULT_HOME, which will be used if $HOME is not set.
4410 For Windows, we use "C:"; on other platforms, we still require
4411 environment variables.
4413 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4414 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4415 having multiple threads call RAND_poll() concurrently.
4418 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4419 combination of a flag and a thread ID variable.
4420 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4421 flag), *other* threads can enter ssleay_add_bytes without obeying
4422 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4423 that they do not hold after the first thread unsets add_do_not_lock).
4426 *) Change bctest again: '-x' expressions are not available in all
4430 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4432 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4433 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4435 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4436 the default extension for executables, if any. Also, make the perl
4437 scripts that use symlink() to test if it really exists and use "cp"
4438 if it doesn't. All this made OpenSSL compilable and installable in
4442 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4443 If SEQUENCE is length is indefinite just set c->slen to the total
4444 amount of data available.
4445 [Steve Henson, reported by shige@FreeBSD.org]
4446 [This change does not apply to 0.9.7.]
4448 *) Change bctest to avoid here-documents inside command substitution
4449 (workaround for FreeBSD /bin/sh bug).
4450 For compatibility with Ultrix, avoid shell functions (introduced
4451 in the bctest version that searches along $PATH).
4454 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4455 with des_encrypt() defined on some operating systems, like Solaris
4459 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4460 On the Importance of Eliminating Errors in Cryptographic
4461 Computations, J. Cryptology 14 (2001) 2, 101-119,
4462 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4465 *) MIPS assembler BIGNUM division bug fix.
4468 *) Disabled incorrect Alpha assembler code.
4471 *) Fix PKCS#7 decode routines so they correctly update the length
4472 after reading an EOC for the EXPLICIT tag.
4474 [This change does not apply to 0.9.7.]
4476 *) Fix bug in PKCS#12 key generation routines. This was triggered
4477 if a 3DES key was generated with a 0 initial byte. Include
4478 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4479 (but broken) behaviour.
4482 *) Enhance bctest to search for a working bc along $PATH and print
4484 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4486 *) Fix memory leaks in err.c: free err_data string if necessary;
4487 don't write to the wrong index in ERR_set_error_data.
4490 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4494 *) Replace rdtsc with _emit statements for VC++ version 5.
4495 [Jeremy Cooper <jeremy@baymoo.org>]
4497 *) Make it possible to reuse SSLv2 sessions.
4500 *) In copy_email() check for >= 0 as a return value for
4501 X509_NAME_get_index_by_NID() since 0 is a valid index.
4502 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4504 *) Avoid coredump with unsupported or invalid public keys by checking if
4505 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4506 PKCS7_verify() fails with non detached data.
4509 *) Don't use getenv in library functions when run as setuid/setgid.
4510 New function OPENSSL_issetugid().
4513 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4514 due to incorrect handling of multi-threading:
4516 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4518 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4520 3. Count how many times MemCheck_off() has been called so that
4521 nested use can be treated correctly. This also avoids
4522 inband-signalling in the previous code (which relied on the
4523 assumption that thread ID 0 is impossible).
4526 *) Add "-rand" option also to s_client and s_server.
4529 *) Fix CPU detection on Irix 6.x.
4530 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4531 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4533 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4536 [This change does not apply to 0.9.7.]
4538 *) Use the cached encoding of an X509_NAME structure rather than
4539 copying it. This is apparently the reason for the libsafe "errors"
4540 but the code is actually correct.
4543 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4544 Bleichenbacher's DSA attack.
4545 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4546 to be set and top=0 forces the highest bit to be set; top=-1 is new
4547 and leaves the highest bit random.
4548 [Ulf Moeller, Bodo Moeller]
4550 *) In the NCONF_...-based implementations for CONF_... queries
4551 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4552 a temporary CONF structure with the data component set to NULL
4553 (which gives segmentation faults in lh_retrieve).
4554 Instead, use NULL for the CONF pointer in CONF_get_string and
4555 CONF_get_number (which may use environment variables) and directly
4556 return NULL from CONF_get_section.
4559 *) Fix potential buffer overrun for EBCDIC.
4562 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4563 keyUsage if basicConstraints absent for a CA.
4566 *) Make SMIME_write_PKCS7() write mail header values with a format that
4567 is more generally accepted (no spaces before the semicolon), since
4568 some programs can't parse those values properly otherwise. Also make
4569 sure BIO's that break lines after each write do not create invalid
4573 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4574 macros previously used would not encode an empty SEQUENCE OF
4575 and break the signature.
4577 [This change does not apply to 0.9.7.]
4579 *) Zero the premaster secret after deriving the master secret in
4583 *) Add some EVP_add_digest_alias registrations (as found in
4584 OpenSSL_add_all_digests()) to SSL_library_init()
4585 aka OpenSSL_add_ssl_algorithms(). This provides improved
4586 compatibility with peers using X.509 certificates
4587 with unconventional AlgorithmIdentifier OIDs.
4590 *) Fix for Irix with NO_ASM.
4591 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4593 *) ./config script fixes.
4594 [Ulf Moeller, Richard Levitte]
4596 *) Fix 'openssl passwd -1'.
4599 *) Change PKCS12_key_gen_asc() so it can cope with non null
4600 terminated strings whose length is passed in the passlen
4601 parameter, for example from PEM callbacks. This was done
4602 by adding an extra length parameter to asc2uni().
4603 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4605 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4606 call failed, free the DSA structure.
4609 *) Fix to uni2asc() to cope with zero length Unicode strings.
4610 These are present in some PKCS#12 files.
4613 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4614 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4615 when writing a 32767 byte record.
4616 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4618 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4619 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4621 (RSA objects have a reference count access to which is protected
4622 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4623 so they are meant to be shared between threads.)
4624 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4625 "Reddie, Steven" <Steven.Reddie@ca.com>]
4627 *) Fix a deadlock in CRYPTO_mem_leaks().
4630 *) Use better test patterns in bntest.
4633 *) rand_win.c fix for Borland C.
4636 *) BN_rshift bugfix for n == 0.
4639 *) Add a 'bctest' script that checks for some known 'bc' bugs
4640 so that 'make test' does not abort just because 'bc' is broken.
4643 *) Store verify_result within SSL_SESSION also for client side to
4644 avoid potential security hole. (Re-used sessions on the client side
4645 always resulted in verify_result==X509_V_OK, not using the original
4646 result of the server certificate verification.)
4649 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4650 SSL3_RT_APPLICATION_DATA, return 0.
4651 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4655 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4656 releases, have been re-implemented by renaming the previous
4657 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4658 and ssl3_read_internal, respectively, and adding 'peek' parameters
4659 to them. The new ssl[23]_{read,peek} functions are calls to
4660 ssl[23]_read_internal with the 'peek' flag set appropriately.
4661 A 'peek' parameter has also been added to ssl3_read_bytes, which
4662 does the actual work for ssl3_read_internal.
4665 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4666 the method-specific "init()" handler. Also clean up ex_data after
4667 calling the method-specific "finish()" handler. Previously, this was
4668 happening the other way round.
4671 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4672 The previous value, 12, was not always sufficient for BN_mod_exp().
4675 *) Make sure that shared libraries get the internal name engine with
4676 the full version number and not just 0. This should mark the
4677 shared libraries as not backward compatible. Of course, this should
4678 be changed again when we can guarantee backward binary compatibility.
4681 *) Fix typo in get_cert_by_subject() in by_dir.c
4682 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4684 *) Rework the system to generate shared libraries:
4686 - Make note of the expected extension for the shared libraries and
4687 if there is a need for symbolic links from for example libcrypto.so.0
4688 to libcrypto.so.0.9.7. There is extended info in Configure for
4691 - Make as few rebuilds of the shared libraries as possible.
4693 - Still avoid linking the OpenSSL programs with the shared libraries.
4695 - When installing, install the shared libraries separately from the
4699 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4701 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4702 and not in SSL_clear because the latter is also used by the
4703 accept/connect functions; previously, the settings made by
4704 SSL_set_read_ahead would be lost during the handshake.
4705 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4707 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4708 Previously, it would create entries for disableed algorithms no
4712 *) Added several new manual pages for SSL_* function.
4715 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4717 *) In ssl23_get_client_hello, generate an error message when faced
4718 with an initial SSL 3.0/TLS record that is too small to contain the
4719 first two bytes of the ClientHello message, i.e. client_version.
4720 (Note that this is a pathologic case that probably has never happened
4721 in real life.) The previous approach was to use the version number
4722 from the record header as a substitute; but our protocol choice
4723 should not depend on that one because it is not authenticated
4724 by the Finished messages.
4727 *) More robust randomness gathering functions for Windows.
4728 [Jeffrey Altman <jaltman@columbia.edu>]
4730 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4731 not set then we don't setup the error code for issuer check errors
4732 to avoid possibly overwriting other errors which the callback does
4733 handle. If an application does set the flag then we assume it knows
4734 what it is doing and can handle the new informational codes
4738 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4739 a general "ANY" type, as such it should be able to decode anything
4740 including tagged types. However it didn't check the class so it would
4741 wrongly interpret tagged types in the same way as their universal
4742 counterpart and unknown types were just rejected. Changed so that the
4743 tagged and unknown types are handled in the same way as a SEQUENCE:
4744 that is the encoding is stored intact. There is also a new type
4745 "V_ASN1_OTHER" which is used when the class is not universal, in this
4746 case we have no idea what the actual type is so we just lump them all
4750 *) On VMS, stdout may very well lead to a file that is written to
4751 in a record-oriented fashion. That means that every write() will
4752 write a separate record, which will be read separately by the
4753 programs trying to read from it. This can be very confusing.
4755 The solution is to put a BIO filter in the way that will buffer
4756 text until a linefeed is reached, and then write everything a
4757 line at a time, so every record written will be an actual line,
4758 not chunks of lines and not (usually doesn't happen, but I've
4759 seen it once) several lines in one record. BIO_f_linebuffer() is
4762 Currently, it's a VMS-only method, because that's where it has
4763 been tested well enough.
4766 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4767 it can return incorrect results.
4768 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4769 but it was in 0.9.6-beta[12].)
4772 *) Disable the check for content being present when verifying detached
4773 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4774 include zero length content when signing messages.
4777 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4778 BIO_ctrl (for BIO pairs).
4781 *) Add DSO method for VMS.
4784 *) Bug fix: Montgomery multiplication could produce results with the
4788 *) Add RPM specification openssl.spec and modify it to build three
4789 packages. The default package contains applications, application
4790 documentation and run-time libraries. The devel package contains
4791 include files, static libraries and function documentation. The
4792 doc package contains the contents of the doc directory. The original
4793 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4796 *) Add a large number of documentation files for many SSL routines.
4797 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4799 *) Add a configuration entry for Sony News 4.
4800 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4802 *) Don't set the two most significant bits to one when generating a
4803 random number < q in the DSA library.
4806 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4807 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4808 the underlying transport is blocking) if a handshake took place.
4809 (The default behaviour is needed by applications such as s_client
4810 and s_server that use select() to determine when to use SSL_read;
4811 but for applications that know in advance when to expect data, it
4812 just makes things more complicated.)
4815 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4819 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4820 work better on such systems.
4821 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4823 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4824 Update PKCS12_parse() so it copies the friendlyName and the
4825 keyid to the certificates aux info.
4828 *) Fix bug in PKCS7_verify() which caused an infinite loop
4829 if there was more than one signature.
4830 [Sven Uszpelkat <su@celocom.de>]
4832 *) Major change in util/mkdef.pl to include extra information
4833 about each symbol, as well as presentig variables as well
4834 as functions. This change means that there's n more need
4835 to rebuild the .num files when some algorithms are excluded.
4838 *) Allow the verify time to be set by an application,
4839 rather than always using the current time.
4842 *) Phase 2 verify code reorganisation. The certificate
4843 verify code now looks up an issuer certificate by a
4844 number of criteria: subject name, authority key id
4845 and key usage. It also verifies self signed certificates
4846 by the same criteria. The main comparison function is
4847 X509_check_issued() which performs these checks.
4849 Lot of changes were necessary in order to support this
4850 without completely rewriting the lookup code.
4852 Authority and subject key identifier are now cached.
4854 The LHASH 'certs' is X509_STORE has now been replaced
4855 by a STACK_OF(X509_OBJECT). This is mainly because an
4856 LHASH can't store or retrieve multiple objects with
4857 the same hash value.
4859 As a result various functions (which were all internal
4860 use only) have changed to handle the new X509_STORE
4861 structure. This will break anything that messed round
4862 with X509_STORE internally.
4864 The functions X509_STORE_add_cert() now checks for an
4865 exact match, rather than just subject name.
4867 The X509_STORE API doesn't directly support the retrieval
4868 of multiple certificates matching a given criteria, however
4869 this can be worked round by performing a lookup first
4870 (which will fill the cache with candidate certificates)
4871 and then examining the cache for matches. This is probably
4872 the best we can do without throwing out X509_LOOKUP
4873 entirely (maybe later...).
4875 The X509_VERIFY_CTX structure has been enhanced considerably.
4877 All certificate lookup operations now go via a get_issuer()
4878 callback. Although this currently uses an X509_STORE it
4879 can be replaced by custom lookups. This is a simple way
4880 to bypass the X509_STORE hackery necessary to make this
4881 work and makes it possible to use more efficient techniques
4882 in future. A very simple version which uses a simple
4883 STACK for its trusted certificate store is also provided
4884 using X509_STORE_CTX_trusted_stack().
4886 The verify_cb() and verify() callbacks now have equivalents
4887 in the X509_STORE_CTX structure.
4889 X509_STORE_CTX also has a 'flags' field which can be used
4890 to customise the verify behaviour.
4893 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4894 excludes S/MIME capabilities.
4897 *) When a certificate request is read in keep a copy of the
4898 original encoding of the signed data and use it when outputing
4899 again. Signatures then use the original encoding rather than
4900 a decoded, encoded version which may cause problems if the
4901 request is improperly encoded.
4904 *) For consistency with other BIO_puts implementations, call
4905 buffer_write(b, ...) directly in buffer_puts instead of calling
4908 In BIO_puts, increment b->num_write as in BIO_write.
4909 [Peter.Sylvester@EdelWeb.fr]
4911 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4912 BN_zero, we may not return a BIGNUM with an array consisting of
4916 *) Avoid calling abort() from within the library when problems are
4917 detected, except if preprocessor symbols have been defined
4918 (such as REF_CHECK, BN_DEBUG etc.).
4921 *) New openssl application 'rsautl'. This utility can be
4922 used for low level RSA operations. DER public key
4923 BIO/fp routines also added.
4926 *) New Configure entry and patches for compiling on QNX 4.
4927 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4929 *) A demo state-machine implementation was sponsored by
4930 Nuron (http://www.nuron.com/) and is now available in
4931 demos/state_machine.
4934 *) New options added to the 'dgst' utility for signature
4935 generation and verification.
4938 *) Unrecognized PKCS#7 content types are now handled via a
4939 catch all ASN1_TYPE structure. This allows unsupported
4940 types to be stored as a "blob" and an application can
4941 encode and decode it manually.
4944 *) Fix various signed/unsigned issues to make a_strex.c
4946 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4948 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4949 length if passed a buffer. ASN1_INTEGER_to_BN failed
4950 if passed a NULL BN and its argument was negative.
4951 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4953 *) Modification to PKCS#7 encoding routines to output definite
4954 length encoding. Since currently the whole structures are in
4955 memory there's not real point in using indefinite length
4956 constructed encoding. However if OpenSSL is compiled with
4957 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4960 *) Added BIO_vprintf() and BIO_vsnprintf().
4963 *) Added more prefixes to parse for in the the strings written
4964 through a logging bio, to cover all the levels that are available
4965 through syslog. The prefixes are now:
4967 PANIC, EMERG, EMR => LOG_EMERG
4968 ALERT, ALR => LOG_ALERT
4969 CRIT, CRI => LOG_CRIT
4970 ERROR, ERR => LOG_ERR
4971 WARNING, WARN, WAR => LOG_WARNING
4972 NOTICE, NOTE, NOT => LOG_NOTICE
4973 INFO, INF => LOG_INFO
4974 DEBUG, DBG => LOG_DEBUG
4976 and as before, if none of those prefixes are present at the
4977 beginning of the string, LOG_ERR is chosen.
4979 On Win32, the LOG_* levels are mapped according to this:
4981 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4982 LOG_WARNING => EVENTLOG_WARNING_TYPE
4983 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4987 *) Made it possible to reconfigure with just the configuration
4988 argument "reconf" or "reconfigure". The command line arguments
4989 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4990 and are retrieved from there when reconfiguring.
4994 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4996 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4999 *) The obj_dat.pl script was messing up the sorting of object
5000 names. The reason was that it compared the quoted version
5001 of strings as a result "OCSP" > "OCSP Signing" because
5002 " > SPACE. Changed script to store unquoted versions of
5003 names and add quotes on output. It was also omitting some
5004 names from the lookup table if they were given a default
5005 value (that is if SN is missing it is given the same
5006 value as LN and vice versa), these are now added on the
5007 grounds that if an object has a name we should be able to
5008 look it up. Finally added warning output when duplicate
5009 short or long names are found.
5012 *) Changes needed for Tandem NSK.
5013 [Scott Uroff <scott@xypro.com>]
5015 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5016 RSA_padding_check_SSLv23(), special padding was never detected
5017 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5018 version rollback attacks was not effective.
5020 In s23_clnt.c, don't use special rollback-attack detection padding
5021 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5022 client; similarly, in s23_srvr.c, don't do the rollback check if
5023 SSL 2.0 is the only protocol enabled in the server.
5026 *) Make it possible to get hexdumps of unprintable data with 'openssl
5027 asn1parse'. By implication, the functions ASN1_parse_dump() and
5028 BIO_dump_indent() are added.
5031 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5032 these print out strings and name structures based on various
5033 flags including RFC2253 support and proper handling of
5034 multibyte characters. Added options to the 'x509' utility
5035 to allow the various flags to be set.
5038 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5039 Also change the functions X509_cmp_current_time() and
5040 X509_gmtime_adj() work with an ASN1_TIME structure,
5041 this will enable certificates using GeneralizedTime in validity
5042 dates to be checked.
5045 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5046 negative public key encodings) on by default,
5047 NO_NEG_PUBKEY_BUG can be set to disable it.
5050 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5051 content octets. An i2c_ASN1_OBJECT is unnecessary because
5052 the encoding can be trivially obtained from the structure.
5055 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5056 not read locks (CRYPTO_r_[un]lock).
5059 *) A first attempt at creating official support for shared
5060 libraries through configuration. I've kept it so the
5061 default is static libraries only, and the OpenSSL programs
5062 are always statically linked for now, but there are
5063 preparations for dynamic linking in place.
5064 This has been tested on Linux and Tru64.
5067 *) Randomness polling function for Win9x, as described in:
5068 Peter Gutmann, Software Generation of Practically Strong
5072 *) Fix so PRNG is seeded in req if using an already existing
5076 *) New options to smime application. -inform and -outform
5077 allow alternative formats for the S/MIME message including
5078 PEM and DER. The -content option allows the content to be
5079 specified separately. This should allow things like Netscape
5080 form signing output easier to verify.
5083 *) Fix the ASN1 encoding of tags using the 'long form'.
5086 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5087 STRING types. These convert content octets to and from the
5088 underlying type. The actual tag and length octets are
5089 already assumed to have been read in and checked. These
5090 are needed because all other string types have virtually
5091 identical handling apart from the tag. By having versions
5092 of the ASN1 functions that just operate on content octets
5093 IMPLICIT tagging can be handled properly. It also allows
5094 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5095 and ASN1_INTEGER are identical apart from the tag.
5098 *) Change the handling of OID objects as follows:
5100 - New object identifiers are inserted in objects.txt, following
5101 the syntax given in objects.README.
5102 - objects.pl is used to process obj_mac.num and create a new
5104 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5107 This is currently kind of a hack, and the perl code in objects.pl
5108 isn't very elegant, but it works as I intended. The simplest way
5109 to check that it worked correctly is to look in obj_dat.h and
5110 check the array nid_objs and make sure the objects haven't moved
5111 around (this is important!). Additions are OK, as well as
5112 consistent name changes.
5115 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5118 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5119 The given file adds to whatever has already been seeded into the
5120 random pool through the RANDFILE configuration file option or
5121 environment variable, or the default random state file.
5124 *) mkstack.pl now sorts each macro group into lexical order.
5125 Previously the output order depended on the order the files
5126 appeared in the directory, resulting in needless rewriting
5130 *) Patches to make OpenSSL compile under Win32 again. Mostly
5131 work arounds for the VC++ problem that it treats func() as
5132 func(void). Also stripped out the parts of mkdef.pl that
5133 added extra typesafe functions: these no longer exist.
5136 *) Reorganisation of the stack code. The macros are now all
5137 collected in safestack.h . Each macro is defined in terms of
5138 a "stack macro" of the form SKM_<name>(type, a, b). The
5139 DEBUG_SAFESTACK is now handled in terms of function casts,
5140 this has the advantage of retaining type safety without the
5141 use of additional functions. If DEBUG_SAFESTACK is not defined
5142 then the non typesafe macros are used instead. Also modified the
5143 mkstack.pl script to handle the new form. Needs testing to see
5144 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5145 the default if no major problems. Similar behaviour for ASN1_SET_OF
5146 and PKCS12_STACK_OF.
5149 *) When some versions of IIS use the 'NET' form of private key the
5150 key derivation algorithm is different. Normally MD5(password) is
5151 used as a 128 bit RC4 key. In the modified case
5152 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5153 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5154 as the old Netscape_RSA functions except they have an additional
5155 'sgckey' parameter which uses the modified algorithm. Also added
5156 an -sgckey command line option to the rsa utility. Thanks to
5157 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5158 algorithm to openssl-dev.
5161 *) The evp_local.h macros were using 'c.##kname' which resulted in
5162 invalid expansion on some systems (SCO 5.0.5 for example).
5163 Corrected to 'c.kname'.
5164 [Phillip Porch <root@theporch.com>]
5166 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5167 a STACK of email addresses from a certificate or request, these look
5168 in the subject name and the subject alternative name extensions and
5169 omit any duplicate addresses.
5172 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5173 This makes DSA verification about 2 % faster.
5176 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5177 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5178 plus overhead for 1024 bit moduli).
5179 This makes exponentiations about 0.5 % faster for 1024 bit
5180 exponents (as measured by "openssl speed rsa2048").
5183 *) Rename memory handling macros to avoid conflicts with other
5185 Malloc => OPENSSL_malloc
5186 Malloc_locked => OPENSSL_malloc_locked
5187 Realloc => OPENSSL_realloc
5188 Free => OPENSSL_free
5191 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5192 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5195 *) CygWin32 support.
5196 [John Jarvie <jjarvie@newsguy.com>]
5198 *) The type-safe stack code has been rejigged. It is now only compiled
5199 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5200 by default all type-specific stack functions are "#define"d back to
5201 standard stack functions. This results in more streamlined output
5202 but retains the type-safety checking possibilities of the original
5206 *) The STACK code has been cleaned up, and certain type declarations
5207 that didn't make a lot of sense have been brought in line. This has
5208 also involved a cleanup of sorts in safestack.h to more correctly
5209 map type-safe stack functions onto their plain stack counterparts.
5210 This work has also resulted in a variety of "const"ifications of
5211 lots of the code, especially "_cmp" operations which should normally
5212 be prototyped with "const" parameters anyway.
5215 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5216 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5217 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5218 where all of 'md' is used each time the PRNG is used, but 'state'
5219 is used only indexed by a cyclic counter. As entropy may not be
5220 well distributed from the beginning, 'md' is important as a
5221 chaining variable. However, the output function chains only half
5222 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5223 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5224 in all of 'state' being rewritten, with the new values depending
5225 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5228 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5229 the handshake is continued after ssl_verify_cert_chain();
5230 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5231 can lead to 'unexplainable' connection aborts later.
5232 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5234 *) Major EVP API cipher revision.
5235 Add hooks for extra EVP features. This allows various cipher
5236 parameters to be set in the EVP interface. Support added for variable
5237 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5238 setting of RC2 and RC5 parameters.
5240 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5243 Remove lots of duplicated code from the EVP library. For example *every*
5244 cipher init() function handles the 'iv' in the same way according to the
5245 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5246 for CFB and OFB modes they zero ctx->num.
5248 New functionality allows removal of S/MIME code RC2 hack.
5250 Most of the routines have the same form and so can be declared in terms
5253 By shifting this to the top level EVP_CipherInit() it can be removed from
5254 all individual ciphers. If the cipher wants to handle IVs or keys
5255 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5258 Change lots of functions like EVP_EncryptUpdate() to now return a
5259 value: although software versions of the algorithms cannot fail
5260 any installed hardware versions can.
5263 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5264 this option is set, tolerate broken clients that send the negotiated
5265 protocol version number instead of the requested protocol version
5269 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5270 i.e. non-zero for export ciphersuites, zero otherwise.
5271 Previous versions had this flag inverted, inconsistent with
5272 rsa_tmp_cb (..._TMP_RSA_CB).
5273 [Bodo Moeller; problem reported by Amit Chopra]
5275 *) Add missing DSA library text string. Work around for some IIS
5276 key files with invalid SEQUENCE encoding.
5279 *) Add a document (doc/standards.txt) that list all kinds of standards
5280 and so on that are implemented in OpenSSL.
5283 *) Enhance c_rehash script. Old version would mishandle certificates
5284 with the same subject name hash and wouldn't handle CRLs at all.
5285 Added -fingerprint option to crl utility, to support new c_rehash
5289 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5292 *) Fix for SSL server purpose checking. Server checking was
5293 rejecting certificates which had extended key usage present
5294 but no ssl client purpose.
5295 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5297 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5298 is a little unclear about how a blank password is handled.
5299 Since the password in encoded as a BMPString with terminating
5300 double NULL a zero length password would end up as just the
5301 double NULL. However no password at all is different and is
5302 handled differently in the PKCS#12 key generation code. NS
5303 treats a blank password as zero length. MSIE treats it as no
5304 password on export: but it will try both on import. We now do
5305 the same: PKCS12_parse() tries zero length and no password if
5306 the password is set to "" or NULL (NULL is now a valid password:
5307 it wasn't before) as does the pkcs12 application.
5310 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5311 perror when PEM_read_bio_X509_REQ fails, the error message must
5312 be obtained from the error queue.
5315 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5316 it in ERR_remove_state if appropriate, and change ERR_get_state
5317 accordingly to avoid race conditions (this is necessary because
5318 thread_hash is no longer constant once set).
5321 *) Bugfix for linux-elf makefile.one.
5324 *) RSA_get_default_method() will now cause a default
5325 RSA_METHOD to be chosen if one doesn't exist already.
5326 Previously this was only set during a call to RSA_new()
5327 or RSA_new_method(NULL) meaning it was possible for
5328 RSA_get_default_method() to return NULL.
5331 *) Added native name translation to the existing DSO code
5332 that will convert (if the flag to do so is set) filenames
5333 that are sufficiently small and have no path information
5334 into a canonical native form. Eg. "blah" converted to
5335 "libblah.so" or "blah.dll" etc.
5338 *) New function ERR_error_string_n(e, buf, len) which is like
5339 ERR_error_string(e, buf), but writes at most 'len' bytes
5340 including the 0 terminator. For ERR_error_string_n, 'buf'
5342 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5344 *) CONF library reworked to become more general. A new CONF
5345 configuration file reader "class" is implemented as well as a
5346 new functions (NCONF_*, for "New CONF") to handle it. The now
5347 old CONF_* functions are still there, but are reimplemented to
5348 work in terms of the new functions. Also, a set of functions
5349 to handle the internal storage of the configuration data is
5350 provided to make it easier to write new configuration file
5351 reader "classes" (I can definitely see something reading a
5352 configuration file in XML format, for example), called _CONF_*,
5353 or "the configuration storage API"...
5355 The new configuration file reading functions are:
5357 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5358 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5360 NCONF_default, NCONF_WIN32
5362 NCONF_dump_fp, NCONF_dump_bio
5364 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5365 NCONF_new creates a new CONF object. This works in the same way
5366 as other interfaces in OpenSSL, like the BIO interface.
5367 NCONF_dump_* dump the internal storage of the configuration file,
5368 which is useful for debugging. All other functions take the same
5369 arguments as the old CONF_* functions wth the exception of the
5370 first that must be a `CONF *' instead of a `LHASH *'.
5372 To make it easer to use the new classes with the old CONF_* functions,
5373 the function CONF_set_default_method is provided.
5376 *) Add '-tls1' option to 'openssl ciphers', which was already
5377 mentioned in the documentation but had not been implemented.
5378 (This option is not yet really useful because even the additional
5379 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5382 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5383 OpenSSL-based applications) load shared libraries and bind to
5384 them in a portable way.
5385 [Geoff Thorpe, with contributions from Richard Levitte]
5387 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5389 *) Make sure _lrotl and _lrotr are only used with MSVC.
5391 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5392 (the default implementation of RAND_status).
5394 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5395 to '-clrext' (= clear extensions), as intended and documented.
5396 [Bodo Moeller; inconsistency pointed out by Michael Attili
5399 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5400 was larger than the MD block size.
5401 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5403 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5404 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5405 using the passed key: if the passed key was a private key the result
5406 of X509_print(), for example, would be to print out all the private key
5410 *) des_quad_cksum() byte order bug fix.
5411 [Ulf Möller, using the problem description in krb4-0.9.7, where
5412 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5414 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5416 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5418 *) For easily testing in shell scripts whether some command
5419 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5420 returns with exit code 0 iff no command of the given name is available.
5421 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5422 the output goes to stdout and nothing is printed to stderr.
5423 Additional arguments are always ignored.
5425 Since for each cipher there is a command of the same name,
5426 the 'no-cipher' compilation switches can be tested this way.
5428 ('openssl no-XXX' is not able to detect pseudo-commands such
5429 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5432 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5435 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5436 is set; it will be thrown away anyway because each handshake creates
5438 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5439 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5440 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5441 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5444 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5445 'Q' and 'R' lose their special meanings (quit/renegotiate).
5446 This is part of what -quiet does; unlike -quiet, -ign_eof
5447 does not suppress any output.
5450 *) Add compatibility options to the purpose and trust code. The
5451 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5452 accepts a certificate or CA, this was the previous behaviour,
5453 with all the associated security issues.
5455 X509_TRUST_COMPAT is the old trust behaviour: only and
5456 automatically trust self signed roots in certificate store. A
5457 new trust setting X509_TRUST_DEFAULT is used to specify that
5458 a purpose has no associated trust setting and it should instead
5459 use the value in the default purpose.
5462 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5463 and fix a memory leak.
5466 *) In util/mkerr.pl (which implements 'make errors'), preserve
5467 reason strings from the previous version of the .c file, as
5468 the default to have only downcase letters (and digits) in
5469 automatically generated reasons codes is not always appropriate.
5472 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5473 using strerror. Previously, ERR_reason_error_string() returned
5474 library names as reason strings for SYSerr; but SYSerr is a special
5475 case where small numbers are errno values, not library numbers.
5478 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5479 converts DSA parameters into DH parameters. (When creating parameters,
5480 DSA_generate_parameters is used.)
5483 *) Include 'length' (recommended exponent length) in C code generated
5484 by 'openssl dhparam -C'.
5487 *) The second argument to set_label in perlasm was already being used
5488 so couldn't be used as a "file scope" flag. Moved to third argument
5492 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5493 instead of RAND_bytes for encryption IVs and salts.
5496 *) Include RAND_status() into RAND_METHOD instead of implementing
5497 it only for md_rand.c Otherwise replacing the PRNG by calling
5498 RAND_set_rand_method would be impossible.
5501 *) Don't let DSA_generate_key() enter an infinite loop if the random
5502 number generation fails.
5505 *) New 'rand' application for creating pseudo-random output.
5508 *) Added configuration support for Linux/IA64
5509 [Rolf Haberrecker <rolf@suse.de>]
5511 *) Assembler module support for Mingw32.
5514 *) Shared library support for HPUX (in shlib/).
5515 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5517 *) Shared library support for Solaris gcc.
5518 [Lutz Behnke <behnke@trustcenter.de>]
5520 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5522 *) PKCS7_encrypt() was adding text MIME headers twice because they
5523 were added manually and by SMIME_crlf_copy().
5526 *) In bntest.c don't call BN_rand with zero bits argument.
5527 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5529 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5530 case was implemented. This caused BN_div_recp() to fail occasionally.
5533 *) Add an optional second argument to the set_label() in the perl
5534 assembly language builder. If this argument exists and is set
5535 to 1 it signals that the assembler should use a symbol whose
5536 scope is the entire file, not just the current function. This
5537 is needed with MASM which uses the format label:: for this scope.
5538 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5540 *) Change the ASN1 types so they are typedefs by default. Before
5541 almost all types were #define'd to ASN1_STRING which was causing
5542 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5546 *) Change names of new functions to the new get1/get0 naming
5547 convention: After 'get1', the caller owns a reference count
5548 and has to call ..._free; 'get0' returns a pointer to some
5549 data structure without incrementing reference counters.
5550 (Some of the existing 'get' functions increment a reference
5551 counter, some don't.)
5552 Similarly, 'set1' and 'add1' functions increase reference
5553 counters or duplicate objects.
5556 *) Allow for the possibility of temp RSA key generation failure:
5557 the code used to assume it always worked and crashed on failure.
5560 *) Fix potential buffer overrun problem in BIO_printf().
5561 [Ulf Möller, using public domain code by Patrick Powell; problem
5562 pointed out by David Sacerdote <das33@cornell.edu>]
5564 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5565 RAND_egd() and RAND_status(). In the command line application,
5566 the EGD socket can be specified like a seed file using RANDFILE
5570 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5571 Some CAs (e.g. Verisign) distribute certificates in this form.
5574 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5575 list to exclude them. This means that no special compilation option
5576 is needed to use anonymous DH: it just needs to be included in the
5580 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5581 EVP_MD_type. The old functionality is available in a new macro called
5582 EVP_MD_md(). Change code that uses it and update docs.
5585 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5586 where the 'void *' argument is replaced by a function pointer argument.
5587 Previously 'void *' was abused to point to functions, which works on
5588 many platforms, but is not correct. As these functions are usually
5589 called by macros defined in OpenSSL header files, most source code
5590 should work without changes.
5593 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5594 sections with information on -D... compiler switches used for
5595 compiling the library so that applications can see them. To enable
5596 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5597 must be defined. E.g.,
5598 #define OPENSSL_ALGORITHM_DEFINES
5599 #include <openssl/opensslconf.h>
5600 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5601 [Richard Levitte, Ulf and Bodo Möller]
5603 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5607 *) Change the 'other' type in certificate aux info to a STACK_OF
5608 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5609 the required ASN1 format: arbitrary types determined by an OID.
5612 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5613 argument to 'req'. This is not because the function is newer or
5614 better than others it just uses the work 'NEW' in the certificate
5615 request header lines. Some software needs this.
5618 *) Reorganise password command line arguments: now passwords can be
5619 obtained from various sources. Delete the PEM_cb function and make
5620 it the default behaviour: i.e. if the callback is NULL and the
5621 usrdata argument is not NULL interpret it as a null terminated pass
5622 phrase. If usrdata and the callback are NULL then the pass phrase
5623 is prompted for as usual.
5626 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5627 the support is automatically enabled. The resulting binaries will
5628 autodetect the card and use it if present.
5629 [Ben Laurie and Compaq Inc.]
5631 *) Work around for Netscape hang bug. This sends certificate request
5632 and server done in one record. Since this is perfectly legal in the
5633 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5634 the bugs/SSLv3 entry for more info.
5637 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5640 *) Add -rand argument to smime and pkcs12 applications and read/write
5644 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5647 *) Add command line password options to the remaining applications.
5650 *) Bug fix for BN_div_recp() for numerators with an even number of
5654 *) More tests in bntest.c, and changed test_bn output.
5657 *) ./config recognizes MacOS X now.
5660 *) Bug fix for BN_div() when the first words of num and divsor are
5661 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5664 *) Add support for various broken PKCS#8 formats, and command line
5665 options to produce them.
5668 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5669 get temporary BIGNUMs from a BN_CTX.
5672 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5676 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5677 include a #define from the old name to the new. The original intent
5678 was that statically linked binaries could for example just call
5679 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5680 link with digests. This never worked becayse SSLeay_add_all_digests()
5681 and SSLeay_add_all_ciphers() were in the same source file so calling
5682 one would link with the other. They are now in separate source files.
5685 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5688 *) Use a less unusual form of the Miller-Rabin primality test (it used
5689 a binary algorithm for exponentiation integrated into the Miller-Rabin
5690 loop, our standard modexp algorithms are faster).
5693 *) Support for the EBCDIC character set completed.
5694 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5696 *) Source code cleanups: use const where appropriate, eliminate casts,
5697 use void * instead of char * in lhash.
5700 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5701 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5702 this the server could overwrite ephemeral keys that the client
5706 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5707 using 50 iterations of the Rabin-Miller test.
5709 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5710 iterations of the Rabin-Miller test as required by the appendix
5711 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5712 As BN_is_prime_fasttest includes trial division, DSA parameter
5713 generation becomes much faster.
5715 This implies a change for the callback functions in DSA_is_prime
5716 and DSA_generate_parameters: The callback function is called once
5717 for each positive witness in the Rabin-Miller test, not just
5718 occasionally in the inner loop; and the parameters to the
5719 callback function now provide an iteration count for the outer
5720 loop rather than for the current invocation of the inner loop.
5721 DSA_generate_parameters additionally can call the callback
5722 function with an 'iteration count' of -1, meaning that a
5723 candidate has passed the trial division test (when q is generated
5724 from an application-provided seed, trial division is skipped).
5727 *) New function BN_is_prime_fasttest that optionally does trial
5728 division before starting the Rabin-Miller test and has
5729 an additional BN_CTX * argument (whereas BN_is_prime always
5730 has to allocate at least one BN_CTX).
5731 'callback(1, -1, cb_arg)' is called when a number has passed the
5732 trial division stage.
5735 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5739 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5742 *) New function BN_pseudo_rand().
5745 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5746 bignum version of BN_from_montgomery() with the working code from
5747 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5751 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5752 made it impossible to use the same SSL_SESSION data structure in
5753 SSL2 clients in multiple threads.
5756 *) The return value of RAND_load_file() no longer counts bytes obtained
5757 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5758 to seed the PRNG (previously an explicit byte count was required).
5759 [Ulf Möller, Bodo Möller]
5761 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5762 used (char *) instead of (void *) and had casts all over the place.
5765 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5768 *) Retain source code compatibility for BN_prime_checks macro:
5769 BN_is_prime(..., BN_prime_checks, ...) now uses
5770 BN_prime_checks_for_size to determine the appropriate number of
5771 Rabin-Miller iterations.
5774 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5775 DH_CHECK_P_NOT_SAFE_PRIME.
5776 (Check if this is true? OpenPGP calls them "strong".)
5779 *) Merge the functionality of "dh" and "gendh" programs into a new program
5780 "dhparam". The old programs are retained for now but will handle DH keys
5781 (instead of parameters) in future.
5784 *) Make the ciphers, s_server and s_client programs check the return values
5785 when a new cipher list is set.
5788 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5789 ciphers. Before when the 56bit ciphers were enabled the sorting was
5792 The syntax for the cipher sorting has been extended to support sorting by
5793 cipher-strength (using the strength_bits hard coded in the tables).
5794 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5796 Fix a bug in the cipher-command parser: when supplying a cipher command
5797 string with an "undefined" symbol (neither command nor alphanumeric
5798 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5799 an error is flagged.
5801 Due to the strength-sorting extension, the code of the
5802 ssl_create_cipher_list() function was completely rearranged. I hope that
5803 the readability was also increased :-)
5804 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5806 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5807 for the first serial number and places 2 in the serial number file. This
5808 avoids problems when the root CA is created with serial number zero and
5809 the first user certificate has the same issuer name and serial number
5813 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5814 the new code. Add documentation for this stuff.
5817 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5818 X509_*() to X509at_*() on the grounds that they don't handle X509
5819 structures and behave in an analagous way to the X509v3 functions:
5820 they shouldn't be called directly but wrapper functions should be used
5823 So we also now have some wrapper functions that call the X509at functions
5824 when passed certificate requests. (TO DO: similar things can be done with
5825 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5826 things. Some of these need some d2i or i2d and print functionality
5827 because they handle more complex structures.)
5830 *) Add missing #ifndefs that caused missing symbols when building libssl
5831 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5832 NO_RSA in ssl/s2*.c.
5833 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5835 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5836 has a return value which indicates the quality of the random data
5837 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5838 error queue. New function RAND_pseudo_bytes() generates output that is
5839 guaranteed to be unique but not unpredictable. RAND_add is like
5840 RAND_seed, but takes an extra argument for an entropy estimate
5841 (RAND_seed always assumes full entropy).
5844 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5845 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5846 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5847 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5848 false-positive rate of at most 2^-80 for random input.
5851 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5854 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5855 in the 0.9.5 release), this returns the chain
5856 from an X509_CTX structure with a dup of the stack and all
5857 the X509 reference counts upped: so the stack will exist
5858 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5861 Also make SSL_SESSION_print() print out the verify return
5865 *) Add manpage for the pkcs12 command. Also change the default
5866 behaviour so MAC iteration counts are used unless the new
5867 -nomaciter option is used. This improves file security and
5868 only older versions of MSIE (4.0 for example) need it.
5871 *) Honor the no-xxx Configure options when creating .DEF files.
5874 *) Add PKCS#10 attributes to field table: challengePassword,
5875 unstructuredName and unstructuredAddress. These are taken from
5876 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5877 international characters are used.
5879 More changes to X509_ATTRIBUTE code: allow the setting of types
5880 based on strings. Remove the 'loc' parameter when adding
5881 attributes because these will be a SET OF encoding which is sorted
5885 *) Initial changes to the 'req' utility to allow request generation
5886 automation. This will allow an application to just generate a template
5887 file containing all the field values and have req construct the
5890 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5891 used all over the place including certificate requests and PKCS#7
5892 structures. They are currently handled manually where necessary with
5893 some primitive wrappers for PKCS#7. The new functions behave in a
5894 manner analogous to the X509 extension functions: they allow
5895 attributes to be looked up by NID and added.
5897 Later something similar to the X509V3 code would be desirable to
5898 automatically handle the encoding, decoding and printing of the
5899 more complex types. The string types like challengePassword can
5900 be handled by the string table functions.
5902 Also modified the multi byte string table handling. Now there is
5903 a 'global mask' which masks out certain types. The table itself
5904 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5905 is useful when for example there is only one permissible type
5906 (as in countryName) and using the mask might result in no valid
5910 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5911 SSL_get_peer_finished to allow applications to obtain the latest
5912 Finished messages sent to the peer or expected from the peer,
5913 respectively. (SSL_get_peer_finished is usually the Finished message
5914 actually received from the peer, otherwise the protocol will be aborted.)
5916 As the Finished message are message digests of the complete handshake
5917 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5918 be used for external authentication procedures when the authentication
5919 provided by SSL/TLS is not desired or is not enough.
5922 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5923 the host supports BWX extension and if Compaq C is present on the
5924 $PATH. Just exploiting of the BWX extension results in 20-30%
5925 performance kick for some algorithms, e.g. DES and RC4 to mention
5926 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5930 *) Add support for MS "fast SGC". This is arguably a violation of the
5931 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5932 weak crypto and after checking the certificate is SGC a second one
5933 with strong crypto. MS SGC stops the first handshake after receiving
5934 the server certificate message and sends a second client hello. Since
5935 a server will typically do all the time consuming operations before
5936 expecting any further messages from the client (server key exchange
5937 is the most expensive) there is little difference between the two.
5939 To get OpenSSL to support MS SGC we have to permit a second client
5940 hello message after we have sent server done. In addition we have to
5941 reset the MAC if we do get this second client hello.
5944 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5945 if a DER encoded private key is RSA or DSA traditional format. Changed
5946 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5947 format DER encoded private key. Newer code should use PKCS#8 format which
5948 has the key type encoded in the ASN1 structure. Added DER private key
5949 support to pkcs8 application.
5952 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5953 ciphersuites has been selected (as required by the SSL 3/TLS 1
5954 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5955 is set, we interpret this as a request to violate the specification
5956 (the worst that can happen is a handshake failure, and 'correct'
5957 behaviour would result in a handshake failure anyway).
5960 *) In SSL_CTX_add_session, take into account that there might be multiple
5961 SSL_SESSION structures with the same session ID (e.g. when two threads
5962 concurrently obtain them from an external cache).
5963 The internal cache can handle only one SSL_SESSION with a given ID,
5964 so if there's a conflict, we now throw out the old one to achieve
5968 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5969 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5970 some routines that use cipher OIDs: some ciphers do not have OIDs
5971 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5975 *) Simplify the trust setting structure and code. Now we just have
5976 two sequences of OIDs for trusted and rejected settings. These will
5977 typically have values the same as the extended key usage extension
5978 and any application specific purposes.
5980 The trust checking code now has a default behaviour: it will just
5981 check for an object with the same NID as the passed id. Functions can
5982 be provided to override either the default behaviour or the behaviour
5983 for a given id. SSL client, server and email already have functions
5984 in place for compatibility: they check the NID and also return "trusted"
5985 if the certificate is self signed.
5988 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5989 traditional format into an EVP_PKEY structure.
5992 *) Add a password callback function PEM_cb() which either prompts for
5993 a password if usr_data is NULL or otherwise assumes it is a null
5994 terminated password. Allow passwords to be passed on command line
5995 environment or config files in a few more utilities.
5998 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5999 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6000 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6001 Update documentation.
6004 *) Support for ASN1 "NULL" type. This could be handled before by using
6005 ASN1_TYPE but there wasn't any function that would try to read a NULL
6006 and produce an error if it couldn't. For compatibility we also have
6007 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6008 don't allocate anything because they don't need to.
6011 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6013 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6015 *) Rebuild of the memory allocation routines used by OpenSSL code and
6016 possibly others as well. The purpose is to make an interface that
6017 provide hooks so anyone can build a separate set of allocation and
6018 deallocation routines to be used by OpenSSL, for example memory
6019 pool implementations, or something else, which was previously hard
6020 since Malloc(), Realloc() and Free() were defined as macros having
6021 the values malloc, realloc and free, respectively (except for Win32
6022 compilations). The same is provided for memory debugging code.
6023 OpenSSL already comes with functionality to find memory leaks, but
6024 this gives people a chance to debug other memory problems.
6026 With these changes, a new set of functions and macros have appeared:
6028 CRYPTO_set_mem_debug_functions() [F]
6029 CRYPTO_get_mem_debug_functions() [F]
6030 CRYPTO_dbg_set_options() [F]
6031 CRYPTO_dbg_get_options() [F]
6032 CRYPTO_malloc_debug_init() [M]
6034 The memory debug functions are NULL by default, unless the library
6035 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6036 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6037 gives the standard debugging functions that come with OpenSSL) or
6038 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6039 provided by the library user) must be used. When the standard
6040 debugging functions are used, CRYPTO_dbg_set_options can be used to
6041 request additional information:
6042 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6043 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6045 Also, things like CRYPTO_set_mem_functions will always give the
6046 expected result (the new set of functions is used for allocation
6047 and deallocation) at all times, regardless of platform and compiler
6050 To finish it up, some functions that were never use in any other
6051 way than through macros have a new API and new semantic:
6054 CRYPTO_dbg_realloc()
6057 All macros of value have retained their old syntax.
6058 [Richard Levitte and Bodo Moeller]
6060 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6061 ordering of SMIMECapabilities wasn't in "strength order" and there
6062 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6066 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6067 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6068 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6070 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6071 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6072 functionality to handle multipart/signed properly) and a utility
6073 called 'smime' to call all this stuff. This is based on code I
6074 originally wrote for Celo who have kindly allowed it to be
6075 included in OpenSSL.
6078 *) Add variants des_set_key_checked and des_set_key_unchecked of
6079 des_set_key (aka des_key_sched). Global variable des_check_key
6080 decides which of these is called by des_set_key; this way
6081 des_check_key behaves as it always did, but applications and
6082 the library itself, which was buggy for des_check_key == 1,
6083 have a cleaner way to pick the version they need.
6086 *) New function PKCS12_newpass() which changes the password of a
6090 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6091 dynamic mix. In both cases the ids can be used as an index into the
6092 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6093 functions so they accept a list of the field values and the
6094 application doesn't need to directly manipulate the X509_TRUST
6098 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6102 *) Modify the way the V3 extension code looks up extensions. This now
6103 works in a similar way to the object code: we have some "standard"
6104 extensions in a static table which is searched with OBJ_bsearch()
6105 and the application can add dynamic ones if needed. The file
6106 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6107 updated whenever a new extension is added to the core code and kept
6108 in ext_nid order. There is a simple program 'tabtest.c' which checks
6109 this. New extensions are not added too often so this file can readily
6110 be maintained manually.
6112 There are two big advantages in doing things this way. The extensions
6113 can be looked up immediately and no longer need to be "added" using
6114 X509V3_add_standard_extensions(): this function now does nothing.
6115 [Side note: I get *lots* of email saying the extension code doesn't
6116 work because people forget to call this function]
6117 Also no dynamic allocation is done unless new extensions are added:
6118 so if we don't add custom extensions there is no need to call
6119 X509V3_EXT_cleanup().
6122 *) Modify enc utility's salting as follows: make salting the default. Add a
6123 magic header, so unsalted files fail gracefully instead of just decrypting
6124 to garbage. This is because not salting is a big security hole, so people
6125 should be discouraged from doing it.
6128 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6129 digest to be passed on the command line but it only used this
6130 parameter when signing a certificate. Modified so all relevant
6131 operations are affected by the digest parameter including the
6132 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6133 DSA key was used because it didn't fix the digest.
6136 *) Initial certificate chain verify code. Currently tests the untrusted
6137 certificates for consistency with the verify purpose (which is set
6138 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6140 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6141 this is because it will reject chains with invalid extensions whereas
6142 every previous version of OpenSSL and SSLeay made no checks at all.
6144 Trust code: checks the root CA for the relevant trust settings. Trust
6145 settings have an initial value consistent with the verify purpose: e.g.
6146 if the verify purpose is for SSL client use it expects the CA to be
6147 trusted for SSL client use. However the default value can be changed to
6148 permit custom trust settings: one example of this would be to only trust
6149 certificates from a specific "secure" set of CAs.
6151 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6152 which should be used for version portability: especially since the
6153 verify structure is likely to change more often now.
6155 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6156 to set them. If not set then assume SSL clients will verify SSL servers
6159 Two new options to the verify program: -untrusted allows a set of
6160 untrusted certificates to be passed in and -purpose which sets the
6161 intended purpose of the certificate. If a purpose is set then the
6162 new chain verify code is used to check extension consistency.
6165 *) Support for the authority information access extension.
6168 *) Modify RSA and DSA PEM read routines to transparently handle
6169 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6170 public keys in a format compatible with certificate
6171 SubjectPublicKeyInfo structures. Unfortunately there were already
6172 functions called *_PublicKey_* which used various odd formats so
6173 these are retained for compatibility: however the DSA variants were
6174 never in a public release so they have been deleted. Changed dsa/rsa
6175 utilities to handle the new format: note no releases ever handled public
6176 keys so we should be OK.
6178 The primary motivation for this change is to avoid the same fiasco
6179 that dogs private keys: there are several incompatible private key
6180 formats some of which are standard and some OpenSSL specific and
6181 require various evil hacks to allow partial transparent handling and
6182 even then it doesn't work with DER formats. Given the option anything
6183 other than PKCS#8 should be dumped: but the other formats have to
6184 stay in the name of compatibility.
6186 With public keys and the benefit of hindsight one standard format
6187 is used which works with EVP_PKEY, RSA or DSA structures: though
6188 it clearly returns an error if you try to read the wrong kind of key.
6190 Added a -pubkey option to the 'x509' utility to output the public key.
6191 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6192 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6193 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6194 that do the same as the EVP_PKEY_assign_*() except they up the
6195 reference count of the added key (they don't "swallow" the
6199 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6200 CRLs would fail if the file contained no certificates or no CRLs:
6201 added a new function to read in both types and return the number
6202 read: this means that if none are read it will be an error. The
6203 DER versions of the certificate and CRL reader would always fail
6204 because it isn't possible to mix certificates and CRLs in DER format
6205 without choking one or the other routine. Changed this to just read
6206 a certificate: this is the best we can do. Also modified the code
6207 in apps/verify.c to take notice of return codes: it was previously
6208 attempting to read in certificates from NULL pointers and ignoring
6209 any errors: this is one reason why the cert and CRL reader seemed
6210 to work. It doesn't check return codes from the default certificate
6211 routines: these may well fail if the certificates aren't installed.
6214 *) Code to support otherName option in GeneralName.
6217 *) First update to verify code. Change the verify utility
6218 so it warns if it is passed a self signed certificate:
6219 for consistency with the normal behaviour. X509_verify
6220 has been modified to it will now verify a self signed
6221 certificate if *exactly* the same certificate appears
6222 in the store: it was previously impossible to trust a
6223 single self signed certificate. This means that:
6224 openssl verify ss.pem
6225 now gives a warning about a self signed certificate but
6226 openssl verify -CAfile ss.pem ss.pem
6230 *) For servers, store verify_result in SSL_SESSION data structure
6231 (and add it to external session representation).
6232 This is needed when client certificate verifications fails,
6233 but an application-provided verification callback (set by
6234 SSL_CTX_set_cert_verify_callback) allows accepting the session
6235 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6236 but returns 1): When the session is reused, we have to set
6237 ssl->verify_result to the appropriate error code to avoid
6239 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6241 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6242 case in PKCS7_dataInit() where the signed PKCS7 structure
6243 didn't contain any existing data because it was being created.
6244 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6246 *) Add a salt to the key derivation routines in enc.c. This
6247 forms the first 8 bytes of the encrypted file. Also add a
6248 -S option to allow a salt to be input on the command line.
6251 *) New function X509_cmp(). Oddly enough there wasn't a function
6252 to compare two certificates. We do this by working out the SHA1
6253 hash and comparing that. X509_cmp() will be needed by the trust
6257 *) SSL_get1_session() is like SSL_get_session(), but increments
6258 the reference count in the SSL_SESSION returned.
6259 [Geoff Thorpe <geoff@eu.c2.net>]
6261 *) Fix for 'req': it was adding a null to request attributes.
6262 Also change the X509_LOOKUP and X509_INFO code to handle
6263 certificate auxiliary information.
6266 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6270 *) Add the possibility to add extra information to the memory leak
6271 detecting output, to form tracebacks, showing from where each
6272 allocation was originated: CRYPTO_push_info("constant string") adds
6273 the string plus current file name and line number to a per-thread
6274 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6275 is like calling CYRPTO_pop_info() until the stack is empty.
6276 Also updated memory leak detection code to be multi-thread-safe.
6279 *) Add options -text and -noout to pkcs7 utility and delete the
6280 encryption options which never did anything. Update docs.
6283 *) Add options to some of the utilities to allow the pass phrase
6284 to be included on either the command line (not recommended on
6285 OSes like Unix) or read from the environment. Update the
6286 manpages and fix a few bugs.
6289 *) Add a few manpages for some of the openssl commands.
6292 *) Fix the -revoke option in ca. It was freeing up memory twice,
6293 leaking and not finding already revoked certificates.
6296 *) Extensive changes to support certificate auxiliary information.
6297 This involves the use of X509_CERT_AUX structure and X509_AUX
6298 functions. An X509_AUX function such as PEM_read_X509_AUX()
6299 can still read in a certificate file in the usual way but it
6300 will also read in any additional "auxiliary information". By
6301 doing things this way a fair degree of compatibility can be
6302 retained: existing certificates can have this information added
6303 using the new 'x509' options.
6305 Current auxiliary information includes an "alias" and some trust
6306 settings. The trust settings will ultimately be used in enhanced
6307 certificate chain verification routines: currently a certificate
6308 can only be trusted if it is self signed and then it is trusted
6312 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6313 The problem was that one of the replacement routines had not been working
6314 since SSLeay releases. For now the offending routine has been replaced
6315 with non-optimised assembler. Even so, this now gives around 95%
6316 performance improvement for 1024 bit RSA signs.
6319 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6320 handling. Most clients have the effective key size in bits equal to
6321 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6322 A few however don't do this and instead use the size of the decrypted key
6323 to determine the RC2 key length and the AlgorithmIdentifier to determine
6324 the effective key length. In this case the effective key length can still
6325 be 40 bits but the key length can be 168 bits for example. This is fixed
6326 by manually forcing an RC2 key into the EVP_PKEY structure because the
6327 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6328 the key length and effective key length are equal.
6331 *) Add a bunch of functions that should simplify the creation of
6332 X509_NAME structures. Now you should be able to do:
6333 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6334 and have it automatically work out the correct field type and fill in
6335 the structures. The more adventurous can try:
6336 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6337 and it will (hopefully) work out the correct multibyte encoding.
6340 *) Change the 'req' utility to use the new field handling and multibyte
6341 copy routines. Before the DN field creation was handled in an ad hoc
6342 way in req, ca, and x509 which was rather broken and didn't support
6343 BMPStrings or UTF8Strings. Since some software doesn't implement
6344 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6345 using the dirstring_type option. See the new comment in the default
6346 openssl.cnf for more info.
6349 *) Make crypto/rand/md_rand.c more robust:
6350 - Assure unique random numbers after fork().
6351 - Make sure that concurrent threads access the global counter and
6352 md serializably so that we never lose entropy in them
6353 or use exactly the same state in multiple threads.
6354 Access to the large state is not always serializable because
6355 the additional locking could be a performance killer, and
6356 md should be large enough anyway.
6359 *) New file apps/app_rand.c with commonly needed functionality
6360 for handling the random seed file.
6362 Use the random seed file in some applications that previously did not:
6364 dsaparam -genkey (which also ignored its '-rand' option),
6367 x509 (when signing).
6368 Except on systems with /dev/urandom, it is crucial to have a random
6369 seed file at least for key creation, DSA signing, and for DH exchanges;
6370 for RSA signatures we could do without one.
6372 gendh and gendsa (unlike genrsa) used to read only the first byte
6373 of each file listed in the '-rand' option. The function as previously
6374 found in genrsa is now in app_rand.c and is used by all programs
6375 that support '-rand'.
6378 *) In RAND_write_file, use mode 0600 for creating files;
6379 don't just chmod when it may be too late.
6382 *) Report an error from X509_STORE_load_locations
6383 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6386 *) New function ASN1_mbstring_copy() this copies a string in either
6387 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6388 into an ASN1_STRING type. A mask of permissible types is passed
6389 and it chooses the "minimal" type to use or an error if not type
6393 *) Add function equivalents to the various macros in asn1.h. The old
6394 macros are retained with an M_ prefix. Code inside the library can
6395 use the M_ macros. External code (including the openssl utility)
6396 should *NOT* in order to be "shared library friendly".
6399 *) Add various functions that can check a certificate's extensions
6400 to see if it usable for various purposes such as SSL client,
6401 server or S/MIME and CAs of these types. This is currently
6402 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6403 verification. Also added a -purpose flag to x509 utility to
6404 print out all the purposes.
6407 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6411 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6412 for, obtain and decode and extension and obtain its critical flag.
6413 This allows all the necessary extension code to be handled in a
6414 single function call.
6417 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6418 platforms. See crypto/rc4/rc4_enc.c for further details.
6421 *) New -noout option to asn1parse. This causes no output to be produced
6422 its main use is when combined with -strparse and -out to extract data
6423 from a file (which may not be in ASN.1 format).
6426 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6427 when producing the local key id.
6428 [Richard Levitte <levitte@stacken.kth.se>]
6430 *) New option -dhparam in s_server. This allows a DH parameter file to be
6431 stated explicitly. If it is not stated then it tries the first server
6432 certificate file. The previous behaviour hard coded the filename
6436 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6437 a public key to be input or output. For example:
6438 openssl rsa -in key.pem -pubout -out pubkey.pem
6439 Also added necessary DSA public key functions to handle this.
6442 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6443 in the message. This was handled by allowing
6444 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6445 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6447 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6448 to the end of the strings whereas this didn't. This would cause problems
6449 if strings read with d2i_ASN1_bytes() were later modified.
6450 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6452 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6453 data and it contains EOF it will end up returning an error. This is
6454 caused by input 46 bytes long. The cause is due to the way base64
6455 BIOs find the start of base64 encoded data. They do this by trying a
6456 trial decode on each line until they find one that works. When they
6457 do a flag is set and it starts again knowing it can pass all the
6458 data directly through the decoder. Unfortunately it doesn't reset
6459 the context it uses. This means that if EOF is reached an attempt
6460 is made to pass two EOFs through the context and this causes the
6461 resulting error. This can also cause other problems as well. As is
6462 usual with these problems it takes *ages* to find and the fix is
6463 trivial: move one line.
6464 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6466 *) Ugly workaround to get s_client and s_server working under Windows. The
6467 old code wouldn't work because it needed to select() on sockets and the
6468 tty (for keypresses and to see if data could be written). Win32 only
6469 supports select() on sockets so we select() with a 1s timeout on the
6470 sockets and then see if any characters are waiting to be read, if none
6471 are present then we retry, we also assume we can always write data to
6472 the tty. This isn't nice because the code then blocks until we've
6473 received a complete line of data and it is effectively polling the
6474 keyboard at 1s intervals: however it's quite a bit better than not
6475 working at all :-) A dedicated Windows application might handle this
6476 with an event loop for example.
6479 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6480 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6481 will be called when RSA_sign() and RSA_verify() are used. This is useful
6482 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6483 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6484 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6485 This necessitated the support of an extra signature type NID_md5_sha1
6486 for SSL signatures and modifications to the SSL library to use it instead
6487 of calling RSA_public_decrypt() and RSA_private_encrypt().
6490 *) Add new -verify -CAfile and -CApath options to the crl program, these
6491 will lookup a CRL issuers certificate and verify the signature in a
6492 similar way to the verify program. Tidy up the crl program so it
6493 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6494 less strict. It will now permit CRL extensions even if it is not
6495 a V2 CRL: this will allow it to tolerate some broken CRLs.
6498 *) Initialize all non-automatic variables each time one of the openssl
6499 sub-programs is started (this is necessary as they may be started
6500 multiple times from the "OpenSSL>" prompt).
6501 [Lennart Bang, Bodo Moeller]
6503 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6504 removing all other RSA functionality (this is what NO_RSA does). This
6505 is so (for example) those in the US can disable those operations covered
6506 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6510 *) Non-copying interface to BIO pairs.
6511 (still largely untested)
6514 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6515 ASCII string. This was handled independently in various places before.
6518 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6519 UTF8 strings a character at a time.
6522 *) Use client_version from client hello to select the protocol
6523 (s23_srvr.c) and for RSA client key exchange verification
6524 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6527 *) Add various utility functions to handle SPKACs, these were previously
6528 handled by poking round in the structure internals. Added new function
6529 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6530 print, verify and generate SPKACs. Based on an original idea from
6531 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6534 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6537 *) Allow the config file extension section to be overwritten on the
6538 command line. Based on an original idea from Massimiliano Pala
6539 <madwolf@comune.modena.it>. The new option is called -extensions
6540 and can be applied to ca, req and x509. Also -reqexts to override
6541 the request extensions in req and -crlexts to override the crl extensions
6545 *) Add new feature to the SPKAC handling in ca. Now you can include
6546 the same field multiple times by preceding it by "XXXX." for example:
6549 this is the same syntax as used in the req config file.
6552 *) Allow certificate extensions to be added to certificate requests. These
6553 are specified in a 'req_extensions' option of the req section of the
6554 config file. They can be printed out with the -text option to req but
6555 are otherwise ignored at present.
6558 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6559 data read consists of only the final block it would not decrypted because
6560 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6561 A misplaced 'break' also meant the decrypted final block might not be
6562 copied until the next read.
6565 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6566 a few extra parameters to the DH structure: these will be useful if
6567 for example we want the value of 'q' or implement X9.42 DH.
6570 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6571 provides hooks that allow the default DSA functions or functions on a
6572 "per key" basis to be replaced. This allows hardware acceleration and
6573 hardware key storage to be handled without major modification to the
6574 library. Also added low level modexp hooks and CRYPTO_EX structure and
6575 associated functions.
6578 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6579 as "read only": it can't be written to and the buffer it points to will
6580 not be freed. Reading from a read only BIO is much more efficient than
6581 a normal memory BIO. This was added because there are several times when
6582 an area of memory needs to be read from a BIO. The previous method was
6583 to create a memory BIO and write the data to it, this results in two
6584 copies of the data and an O(n^2) reading algorithm. There is a new
6585 function BIO_new_mem_buf() which creates a read only memory BIO from
6586 an area of memory. Also modified the PKCS#7 routines to use read only
6590 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6591 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6592 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6593 but a retry condition occured while trying to read the rest.
6596 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6597 NID_pkcs7_encrypted by default: this was wrong since this should almost
6598 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6599 the encrypted data type: this is a more sensible place to put it and it
6600 allows the PKCS#12 code to be tidied up that duplicated this
6604 *) Changed obj_dat.pl script so it takes its input and output files on
6605 the command line. This should avoid shell escape redirection problems
6609 *) Initial support for certificate extension requests, these are included
6610 in things like Xenroll certificate requests. Included functions to allow
6611 extensions to be obtained and added.
6614 *) -crlf option to s_client and s_server for sending newlines as
6615 CRLF (as required by many protocols).
6618 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6620 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6621 [Ralf S. Engelschall]
6623 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6624 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6626 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6630 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6631 DH parameters/keys (q is lost during that conversion, but the resulting
6632 DH parameters contain its length).
6634 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6635 much faster than DH_generate_parameters (which creates parameters
6636 where p = 2*q + 1), and also the smaller q makes DH computations
6637 much more efficient (160-bit exponentiation instead of 1024-bit
6638 exponentiation); so this provides a convenient way to support DHE
6639 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6640 utter importance to use
6641 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6643 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6644 when such DH parameters are used, because otherwise small subgroup
6645 attacks may become possible!
6648 *) Avoid memory leak in i2d_DHparams.
6651 *) Allow the -k option to be used more than once in the enc program:
6652 this allows the same encrypted message to be read by multiple recipients.
6655 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6656 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6657 it will always use the numerical form of the OID, even if it has a short
6661 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6662 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6663 otherwise bn_mod_exp was called. In the case of hardware keys for example
6664 no private key components need be present and it might store extra data
6665 in the RSA structure, which cannot be accessed from bn_mod_exp.
6666 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6667 private key operations.
6670 *) Added support for SPARC Linux.
6673 *) pem_password_cb function type incompatibly changed from
6674 typedef int pem_password_cb(char *buf, int size, int rwflag);
6676 ....(char *buf, int size, int rwflag, void *userdata);
6677 so that applications can pass data to their callbacks:
6678 The PEM[_ASN1]_{read,write}... functions and macros now take an
6679 additional void * argument, which is just handed through whenever
6680 the password callback is called.
6681 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6683 New function SSL_CTX_set_default_passwd_cb_userdata.
6685 Compatibility note: As many C implementations push function arguments
6686 onto the stack in reverse order, the new library version is likely to
6687 interoperate with programs that have been compiled with the old
6688 pem_password_cb definition (PEM_whatever takes some data that
6689 happens to be on the stack as its last argument, and the callback
6690 just ignores this garbage); but there is no guarantee whatsoever that
6693 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6694 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6695 problems not only on Windows, but also on some Unix platforms.
6696 To avoid problematic command lines, these definitions are now in an
6697 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6698 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6701 *) MIPS III/IV assembler module is reimplemented.
6704 *) More DES library cleanups: remove references to srand/rand and
6705 delete an unused file.
6708 *) Add support for the the free Netwide assembler (NASM) under Win32,
6709 since not many people have MASM (ml) and it can be hard to obtain.
6710 This is currently experimental but it seems to work OK and pass all
6711 the tests. Check out INSTALL.W32 for info.
6714 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6715 without temporary keys kept an extra copy of the server key,
6716 and connections with temporary keys did not free everything in case
6720 *) New function RSA_check_key and new openssl rsa option -check
6721 for verifying the consistency of RSA keys.
6722 [Ulf Moeller, Bodo Moeller]
6724 *) Various changes to make Win32 compile work:
6725 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6726 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6727 comparison" warnings.
6728 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6731 *) Add a debugging option to PKCS#5 v2 key generation function: when
6732 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6733 derived keys are printed to stderr.
6736 *) Copy the flags in ASN1_STRING_dup().
6737 [Roman E. Pavlov <pre@mo.msk.ru>]
6739 *) The x509 application mishandled signing requests containing DSA
6740 keys when the signing key was also DSA and the parameters didn't match.
6742 It was supposed to omit the parameters when they matched the signing key:
6743 the verifying software was then supposed to automatically use the CA's
6744 parameters if they were absent from the end user certificate.
6746 Omitting parameters is no longer recommended. The test was also
6747 the wrong way round! This was probably due to unusual behaviour in
6748 EVP_cmp_parameters() which returns 1 if the parameters match.
6749 This meant that parameters were omitted when they *didn't* match and
6750 the certificate was useless. Certificates signed with 'ca' didn't have
6752 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6754 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6755 The interface is as follows:
6756 Applications can use
6757 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6758 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6759 "off" is now the default.
6760 The library internally uses
6761 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6762 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6763 to disable memory-checking temporarily.
6765 Some inconsistent states that previously were possible (and were
6766 even the default) are now avoided.
6768 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6769 with each memory chunk allocated; this is occasionally more helpful
6770 than just having a counter.
6772 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6774 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6778 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6779 which largely parallels "options", but is for changing API behaviour,
6780 whereas "options" are about protocol behaviour.
6781 Initial "mode" flags are:
6783 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6784 a single record has been written.
6785 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6786 retries use the same buffer location.
6787 (But all of the contents must be
6791 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6794 *) Fix problems with no-hmac etc.
6795 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6797 *) New functions RSA_get_default_method(), RSA_set_method() and
6798 RSA_get_method(). These allows replacement of RSA_METHODs without having
6799 to mess around with the internals of an RSA structure.
6802 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6803 Also really enable memory leak checks in openssl.c and in some
6805 [Chad C. Mulligan, Bodo Moeller]
6807 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6808 up the length of negative integers. This has now been simplified to just
6809 store the length when it is first determined and use it later, rather
6810 than trying to keep track of where data is copied and updating it to
6812 [Steve Henson, reported by Brien Wheeler
6813 <bwheeler@authentica-security.com>]
6815 *) Add a new function PKCS7_signatureVerify. This allows the verification
6816 of a PKCS#7 signature but with the signing certificate passed to the
6817 function itself. This contrasts with PKCS7_dataVerify which assumes the
6818 certificate is present in the PKCS#7 structure. This isn't always the
6819 case: certificates can be omitted from a PKCS#7 structure and be
6820 distributed by "out of band" means (such as a certificate database).
6823 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6824 function prototypes in pem.h, also change util/mkdef.pl to add the
6825 necessary function names.
6828 *) mk1mf.pl (used by Windows builds) did not properly read the
6829 options set by Configure in the top level Makefile, and Configure
6830 was not even able to write more than one option correctly.
6831 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6834 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6835 file to be loaded from a BIO or FILE pointer. The BIO version will
6836 for example allow memory BIOs to contain config info.
6839 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6840 Whoever hopes to achieve shared-library compatibility across versions
6841 must use this, not the compile-time macro.
6842 (Exercise 0.9.4: Which is the minimum library version required by
6844 Note: All this applies only to multi-threaded programs, others don't
6848 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6849 through a BIO pair triggered the default case, i.e.
6850 SSLerr(...,SSL_R_UNKNOWN_STATE).
6853 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6854 can use the SSL library even if none of the specific BIOs is
6858 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6859 for the encoded length.
6860 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6862 *) Add initial documentation of the X509V3 functions.
6865 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6866 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6867 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6868 secure PKCS#8 private key format with a high iteration count.
6871 *) Fix determination of Perl interpreter: A perl or perl5
6872 _directory_ in $PATH was also accepted as the interpreter.
6873 [Ralf S. Engelschall]
6875 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6876 wrong with it but it was very old and did things like calling
6877 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6881 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6882 to use the new extension code.
6885 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6886 with macros. This should make it easier to change their form, add extra
6887 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6891 *) Add to configuration table a new entry that can specify an alternative
6892 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6893 according to Mark Crispin <MRC@Panda.COM>.
6897 *) DES CBC did not update the IV. Weird.
6900 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6901 Changing the behaviour of the former might break existing programs --
6902 where IV updating is needed, des_ncbc_encrypt can be used.
6905 *) When bntest is run from "make test" it drives bc to check its
6906 calculations, as well as internally checking them. If an internal check
6907 fails, it needs to cause bc to give a non-zero result or make test carries
6908 on without noticing the failure. Fixed.
6911 *) DES library cleanups.
6914 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6915 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6916 ciphers. NOTE: although the key derivation function has been verified
6917 against some published test vectors it has not been extensively tested
6918 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6922 *) Instead of "mkdir -p", which is not fully portable, use new
6923 Perl script "util/mkdir-p.pl".
6926 *) Rewrite the way password based encryption (PBE) is handled. It used to
6927 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6928 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6929 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6930 the 'parameter' field of the AlgorithmIdentifier is passed to the
6931 underlying key generation function so it must do its own ASN1 parsing.
6932 This has also changed the EVP_PBE_CipherInit() function which now has a
6933 'parameter' argument instead of literal salt and iteration count values
6934 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6937 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6938 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6939 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6940 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6941 value was just used as a "magic string" and not used directly its
6942 value doesn't matter.
6945 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6949 *) "linux-sparc64" configuration (ultrapenguin).
6950 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6951 "linux-sparc" configuration.
6952 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6954 *) config now generates no-xxx options for missing ciphers.
6957 *) Support the EBCDIC character set (work in progress).
6958 File ebcdic.c not yet included because it has a different license.
6959 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6961 *) Support BS2000/OSD-POSIX.
6962 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6964 *) Make callbacks for key generation use void * instead of char *.
6967 *) Make S/MIME samples compile (not yet tested).
6970 *) Additional typesafe stacks.
6973 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6977 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6979 *) New configuration variant "sco5-gcc".
6981 *) Updated some demos.
6982 [Sean O Riordain, Wade Scholine]
6984 *) Add missing BIO_free at exit of pkcs12 application.
6987 *) Fix memory leak in conf.c.
6990 *) Updates for Win32 to assembler version of MD5.
6993 *) Set #! path to perl in apps/der_chop to where we found it
6994 instead of using a fixed path.
6997 *) SHA library changes for irix64-mips4-cc.
7000 *) Improvements for VMS support.
7004 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7006 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7007 This also avoids the problems with SC4.2 and unpatched SC5.
7008 [Andy Polyakov <appro@fy.chalmers.se>]
7010 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7011 These are required because of the typesafe stack would otherwise break
7012 existing code. If old code used a structure member which used to be STACK
7013 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7014 sk_num or sk_value it would produce an error because the num, data members
7015 are not present in STACK_OF. Now it just produces a warning. sk_set
7016 replaces the old method of assigning a value to sk_value
7017 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7018 that does this will no longer work (and should use sk_set instead) but
7019 this could be regarded as a "questionable" behaviour anyway.
7022 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7023 correctly handle encrypted S/MIME data.
7026 *) Change type of various DES function arguments from des_cblock
7027 (which means, in function argument declarations, pointer to char)
7028 to des_cblock * (meaning pointer to array with 8 char elements),
7029 which allows the compiler to do more typechecking; it was like
7030 that back in SSLeay, but with lots of ugly casts.
7032 Introduce new type const_des_cblock.
7035 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7036 problems: find RecipientInfo structure that matches recipient certificate
7037 and initialise the ASN1 structures properly based on passed cipher.
7040 *) Belatedly make the BN tests actually check the results.
7043 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7044 to and from BNs: it was completely broken. New compilation option
7045 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7046 key elements as negative integers.
7049 *) Reorganize and speed up MD5.
7050 [Andy Polyakov <appro@fy.chalmers.se>]
7053 [Richard Levitte <richard@levitte.org>]
7055 *) New option -out to asn1parse to allow the parsed structure to be
7056 output to a file. This is most useful when combined with the -strparse
7057 option to examine the output of things like OCTET STRINGS.
7060 *) Make SSL library a little more fool-proof by not requiring any longer
7061 that SSL_set_{accept,connect}_state be called before
7062 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7063 in many applications because usually everything *appeared* to work as
7064 intended anyway -- now it really works as intended).
7067 *) Move openssl.cnf out of lib/.
7070 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7071 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7072 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7073 [Ralf S. Engelschall]
7075 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7076 handle PKCS#7 enveloped data properly.
7077 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7079 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7080 copying pointers. The cert_st handling is changed by this in
7081 various ways (and thus what used to be known as ctx->default_cert
7082 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7083 any longer when s->cert does not give us what we need).
7084 ssl_cert_instantiate becomes obsolete by this change.
7085 As soon as we've got the new code right (possibly it already is?),
7086 we have solved a couple of bugs of the earlier code where s->cert
7087 was used as if it could not have been shared with other SSL structures.
7089 Note that using the SSL API in certain dirty ways now will result
7090 in different behaviour than observed with earlier library versions:
7091 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7092 does not influence s as it used to.
7094 In order to clean up things more thoroughly, inside SSL_SESSION
7095 we don't use CERT any longer, but a new structure SESS_CERT
7096 that holds per-session data (if available); currently, this is
7097 the peer's certificate chain and, for clients, the server's certificate
7098 and temporary key. CERT holds only those values that can have
7099 meaningful defaults in an SSL_CTX.
7102 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7103 from the internal representation. Various PKCS#7 fixes: remove some
7104 evil casts and set the enc_dig_alg field properly based on the signing
7108 *) Allow PKCS#12 password to be set from the command line or the
7109 environment. Let 'ca' get its config file name from the environment
7110 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7114 *) Allow certificate policies extension to use an IA5STRING for the
7115 organization field. This is contrary to the PKIX definition but
7116 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7120 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7121 without disallowing inline assembler and the like for non-pedantic builds.
7124 *) Support Borland C++ builder.
7125 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7130 *) SHA-1 cleanups and performance enhancements.
7131 [Andy Polyakov <appro@fy.chalmers.se>]
7133 *) Sparc v8plus assembler for the bignum library.
7134 [Andy Polyakov <appro@fy.chalmers.se>]
7136 *) Accept any -xxx and +xxx compiler options in Configure.
7139 *) Update HPUX configuration.
7142 *) Add missing sk_<type>_unshift() function to safestack.h
7143 [Ralf S. Engelschall]
7145 *) New function SSL_CTX_use_certificate_chain_file that sets the
7146 "extra_cert"s in addition to the certificate. (This makes sense
7147 only for "PEM" format files, as chains as a whole are not
7151 *) Support verify_depth from the SSL API.
7152 x509_vfy.c had what can be considered an off-by-one-error:
7153 Its depth (which was not part of the external interface)
7154 was actually counting the number of certificates in a chain;
7155 now it really counts the depth.
7158 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7159 instead of X509err, which often resulted in confusing error
7160 messages since the error codes are not globally unique
7161 (e.g. an alleged error in ssl3_accept when a certificate
7162 didn't match the private key).
7164 *) New function SSL_CTX_set_session_id_context that allows to set a default
7165 value (so that you don't need SSL_set_session_id_context for each
7166 connection using the SSL_CTX).
7169 *) OAEP decoding bug fix.
7172 *) Support INSTALL_PREFIX for package builders, as proposed by
7176 *) New Configure options "threads" and "no-threads". For systems
7177 where the proper compiler options are known (currently Solaris
7178 and Linux), "threads" is the default.
7181 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7184 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7185 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7186 such as /usr/local/bin.
7189 *) "make linux-shared" to build shared libraries.
7190 [Niels Poppe <niels@netbox.org>]
7192 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7195 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7196 extension adding in x509 utility.
7199 *) Remove NOPROTO sections and error code comments.
7202 *) Partial rewrite of the DEF file generator to now parse the ANSI
7206 *) New Configure options --prefix=DIR and --openssldir=DIR.
7209 *) Complete rewrite of the error code script(s). It is all now handled
7210 by one script at the top level which handles error code gathering,
7211 header rewriting and C source file generation. It should be much better
7212 than the old method: it now uses a modified version of Ulf's parser to
7213 read the ANSI prototypes in all header files (thus the old K&R definitions
7214 aren't needed for error creation any more) and do a better job of
7215 translating function codes into names. The old 'ASN1 error code imbedded
7216 in a comment' is no longer necessary and it doesn't use .err files which
7217 have now been deleted. Also the error code call doesn't have to appear all
7218 on one line (which resulted in some large lines...).
7221 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7224 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7225 0 (which usually indicates a closed connection), but continue reading.
7228 *) Fix some race conditions.
7231 *) Add support for CRL distribution points extension. Add Certificate
7232 Policies and CRL distribution points documentation.
7235 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7238 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7239 8 of keying material. Merlin has also confirmed interop with this fix
7240 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7241 [Merlin Hughes <merlin@baltimore.ie>]
7243 *) Fix lots of warnings.
7244 [Richard Levitte <levitte@stacken.kth.se>]
7246 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7247 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7248 [Richard Levitte <levitte@stacken.kth.se>]
7250 *) Fix problems with sizeof(long) == 8.
7251 [Andy Polyakov <appro@fy.chalmers.se>]
7253 *) Change functions to ANSI C.
7256 *) Fix typos in error codes.
7257 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7259 *) Remove defunct assembler files from Configure.
7262 *) SPARC v8 assembler BIGNUM implementation.
7263 [Andy Polyakov <appro@fy.chalmers.se>]
7265 *) Support for Certificate Policies extension: both print and set.
7266 Various additions to support the r2i method this uses.
7269 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7270 return a const string when you are expecting an allocated buffer.
7273 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7274 types DirectoryString and DisplayText.
7277 *) Add code to allow r2i extensions to access the configuration database,
7278 add an LHASH database driver and add several ctx helper functions.
7281 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7282 fail when they extended the size of a BIGNUM.
7285 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7286 support typesafe stack.
7289 *) Fix typo in SSL_[gs]et_options().
7290 [Nils Frostberg <nils@medcom.se>]
7292 *) Delete various functions and files that belonged to the (now obsolete)
7293 old X509V3 handling code.
7296 *) New Configure option "rsaref".
7299 *) Don't auto-generate pem.h.
7302 *) Introduce type-safe ASN.1 SETs.
7305 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7306 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7308 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7309 that links with OpenSSL (well at least cause lots of warnings), but fear
7310 not: the conversion is trivial, and it eliminates loads of evil casts. A
7311 few STACKed things have been converted already. Feel free to convert more.
7312 In the fullness of time, I'll do away with the STACK type altogether.
7315 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7316 specified in <certfile> by updating the entry in the index.txt file.
7317 This way one no longer has to edit the index.txt file manually for
7318 revoking a certificate. The -revoke option does the gory details now.
7319 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7321 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7322 `-text' option at all and this way the `-noout -text' combination was
7323 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7324 [Ralf S. Engelschall]
7326 *) Make sure a corresponding plain text error message exists for the
7327 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7328 verify callback function determined that a certificate was revoked.
7329 [Ralf S. Engelschall]
7331 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7332 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7333 all available cipers including rc5, which was forgotten until now.
7334 In order to let the testing shell script know which algorithms
7335 are available, a new (up to now undocumented) command
7336 "openssl list-cipher-commands" is used.
7339 *) Bugfix: s_client occasionally would sleep in select() when
7340 it should have checked SSL_pending() first.
7343 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7344 the raw DSA values prior to ASN.1 encoding.
7347 *) Tweaks to Configure
7348 [Niels Poppe <niels@netbox.org>]
7350 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7354 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7357 *) New config option to avoid instructions that are illegal on the 80386.
7358 The default code is faster, but requires at least a 486.
7361 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7362 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7363 same as SSL2_VERSION anyway.
7366 *) New "-showcerts" option for s_client.
7369 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7370 application. Various cleanups and fixes.
7373 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7374 modify error routines to work internally. Add error codes and PBE init
7375 to library startup routines.
7378 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7379 packing functions to asn1 and evp. Changed function names and error
7380 codes along the way.
7383 *) PKCS12 integration: and so it begins... First of several patches to
7384 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7385 objects to objects.h
7388 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7389 and display support for Thawte strong extranet extension.
7392 *) Add LinuxPPC support.
7393 [Jeff Dubrule <igor@pobox.org>]
7395 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7396 bn_div_words in alpha.s.
7397 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7399 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7400 OAEP isn't supported when OpenSSL is built with RSAref.
7401 [Ulf Moeller <ulf@fitug.de>]
7403 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7404 so they no longer are missing under -DNOPROTO.
7405 [Soren S. Jorvang <soren@t.dk>]
7408 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7410 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7411 doesn't work when the session is reused. Coming soon!
7414 *) Fix a security hole, that allows sessions to be reused in the wrong
7415 context thus bypassing client cert protection! All software that uses
7416 client certs and session caches in multiple contexts NEEDS PATCHING to
7417 allow session reuse! A fuller solution is in the works.
7418 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7420 *) Some more source tree cleanups (removed obsolete files
7421 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7422 permission on "config" script to be executable) and a fix for the INSTALL
7424 [Ulf Moeller <ulf@fitug.de>]
7426 *) Remove some legacy and erroneous uses of malloc, free instead of
7428 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7430 *) Make rsa_oaep_test return non-zero on error.
7431 [Ulf Moeller <ulf@fitug.de>]
7433 *) Add support for native Solaris shared libraries. Configure
7434 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7435 if someone would make that last step automatic.
7436 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7438 *) ctx_size was not built with the right compiler during "make links". Fixed.
7441 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7442 except NULL ciphers". This means the default cipher list will no longer
7443 enable NULL ciphers. They need to be specifically enabled e.g. with
7444 the string "DEFAULT:eNULL".
7447 *) Fix to RSA private encryption routines: if p < q then it would
7448 occasionally produce an invalid result. This will only happen with
7449 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7452 *) Be less restrictive and allow also `perl util/perlpath.pl
7453 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7454 because this way one can also use an interpreter named `perl5' (which is
7455 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7456 installed as `perl').
7457 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7459 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7460 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7462 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7463 advapi32.lib to Win32 build and change the pem test comparision
7464 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7465 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7466 and crypto/des/ede_cbcm_enc.c.
7469 *) DES quad checksum was broken on big-endian architectures. Fixed.
7472 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7473 Win32 test batch file so it (might) work again. The Win32 test batch file
7474 is horrible: I feel ill....
7477 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7478 in e_os.h. Audit of header files to check ANSI and non ANSI
7479 sections: 10 functions were absent from non ANSI section and not exported
7480 from Windows DLLs. Fixed up libeay.num for new functions.
7483 *) Make `openssl version' output lines consistent.
7484 [Ralf S. Engelschall]
7486 *) Fix Win32 symbol export lists for BIO functions: Added
7487 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7488 to ms/libeay{16,32}.def.
7489 [Ralf S. Engelschall]
7491 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7492 fine under Unix and passes some trivial tests I've now added. But the
7493 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7494 added to make sure no one expects that this stuff really works in the
7495 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7496 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7498 [Ralf S. Engelschall]
7500 *) Fix the generation of two part addresses in perl.
7501 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7503 *) Add config entry for Linux on MIPS.
7504 [John Tobey <jtobey@channel1.com>]
7506 *) Make links whenever Configure is run, unless we are on Windoze.
7509 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7510 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7514 *) Add a useful kludge to allow package maintainers to specify compiler and
7515 other platforms details on the command line without having to patch the
7516 Configure script everytime: One now can use ``perl Configure
7517 <id>:<details>'', i.e. platform ids are allowed to have details appended
7518 to them (seperated by colons). This is treated as there would be a static
7519 pre-configured entry in Configure's %table under key <id> with value
7520 <details> and ``perl Configure <id>'' is called. So, when you want to
7521 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7522 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7523 now, which overrides the FreeBSD-elf entry on-the-fly.
7524 [Ralf S. Engelschall]
7526 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7529 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7530 on the `perl Configure ...' command line. This way one can compile
7531 OpenSSL libraries with Position Independent Code (PIC) which is needed
7532 for linking it into DSOs.
7533 [Ralf S. Engelschall]
7535 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7539 *) Cleaned up the LICENSE document: The official contact for any license
7540 questions now is the OpenSSL core team under openssl-core@openssl.org.
7541 And add a paragraph about the dual-license situation to make sure people
7542 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7543 to the OpenSSL toolkit.
7544 [Ralf S. Engelschall]
7546 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7547 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7548 Additonally cleaned up the `make links' target: Remove unnecessary
7549 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7550 to speed processing and no longer clutter the display with confusing
7551 stuff. Instead only the actually done links are displayed.
7552 [Ralf S. Engelschall]
7554 *) Permit null encryption ciphersuites, used for authentication only. It used
7555 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7556 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7560 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7561 signed attributes when verifying signatures (this would break them),
7562 the detached data encoding was wrong and public keys obtained using
7563 X509_get_pubkey() weren't freed.
7566 *) Add text documentation for the BUFFER functions. Also added a work around
7567 to a Win95 console bug. This was triggered by the password read stuff: the
7568 last character typed gets carried over to the next fread(). If you were
7569 generating a new cert request using 'req' for example then the last
7570 character of the passphrase would be CR which would then enter the first
7574 *) Added the new `Includes OpenSSL Cryptography Software' button as
7575 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7576 button and can be used by applications based on OpenSSL to show the
7577 relationship to the OpenSSL project.
7578 [Ralf S. Engelschall]
7580 *) Remove confusing variables in function signatures in files
7581 ssl/ssl_lib.c and ssl/ssl.h.
7582 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7584 *) Don't install bss_file.c under PREFIX/include/
7585 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7587 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7588 functions that return function pointers and has support for NT specific
7589 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7590 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7591 unsigned to signed types: this was killing the Win32 compile.
7594 *) Add new certificate file to stack functions,
7595 SSL_add_dir_cert_subjects_to_stack() and
7596 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7597 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7598 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7599 This means that Apache-SSL and similar packages don't have to mess around
7600 to add as many CAs as they want to the preferred list.
7603 *) Experiment with doxygen documentation. Currently only partially applied to
7605 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7606 openssl.doxy as the configuration file.
7609 *) Get rid of remaining C++-style comments which strict C compilers hate.
7610 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7612 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7613 compiled in by default: it has problems with large keys.
7616 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7617 DH private keys and/or callback functions which directly correspond to
7618 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7619 is needed for applications which have to configure certificates on a
7620 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7622 For the RSA certificate situation is makes no difference, but
7623 for the DSA certificate situation this fixes the "no shared cipher"
7624 problem where the OpenSSL cipher selection procedure failed because the
7625 temporary keys were not overtaken from the context and the API provided
7626 no way to reconfigure them.
7627 The new functions now let applications reconfigure the stuff and they
7628 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7629 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7630 non-public-API function ssl_cert_instantiate() is used as a helper
7631 function and also to reduce code redundancy inside ssl_rsa.c.
7632 [Ralf S. Engelschall]
7634 *) Move s_server -dcert and -dkey options out of the undocumented feature
7635 area because they are useful for the DSA situation and should be
7636 recognized by the users.
7637 [Ralf S. Engelschall]
7639 *) Fix the cipher decision scheme for export ciphers: the export bits are
7640 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7641 SSL_EXP_MASK. So, the original variable has to be used instead of the
7642 already masked variable.
7643 [Richard Levitte <levitte@stacken.kth.se>]
7645 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7646 [Richard Levitte <levitte@stacken.kth.se>]
7648 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7649 from `int' to `unsigned int' because it's a length and initialized by
7650 EVP_DigestFinal() which expects an `unsigned int *'.
7651 [Richard Levitte <levitte@stacken.kth.se>]
7653 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7654 script. Instead use the usual Shell->Perl transition trick.
7655 [Ralf S. Engelschall]
7657 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7658 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7659 -noout -modulus' as it's already the case for `openssl rsa -noout
7660 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7661 currently the public key is printed (a decision which was already done by
7662 `openssl dsa -modulus' in the past) which serves a similar purpose.
7663 Additionally the NO_RSA no longer completely removes the whole -modulus
7664 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7666 [Ralf S. Engelschall]
7668 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7669 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7670 [Arne Ansper <arne@ats.cyber.ee>]
7672 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7673 to be added. Now both 'req' and 'ca' can use new objects defined in the
7677 *) Add cool BIO that does syslog (or event log on NT).
7678 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7680 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7681 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7682 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7683 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7686 *) Add preliminary config info for new extension code.
7689 *) Make RSA_NO_PADDING really use no padding.
7690 [Ulf Moeller <ulf@fitug.de>]
7692 *) Generate errors when private/public key check is done.
7695 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7696 for some CRL extensions and new objects added.
7699 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7700 key usage extension and fuller support for authority key id.
7703 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7704 padding method for RSA, which is recommended for new applications in PKCS
7705 #1 v2.0 (RFC 2437, October 1998).
7706 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7707 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7708 against Bleichbacher's attack on RSA.
7709 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7712 *) Updates to the new SSL compression code
7713 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7715 *) Fix so that the version number in the master secret, when passed
7716 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7717 (because the server will not accept higher), that the version number
7718 is 0x03,0x01, not 0x03,0x00
7719 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7721 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7722 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7723 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7726 *) Support for RAW extensions where an arbitrary extension can be
7727 created by including its DER encoding. See apps/openssl.cnf for
7731 *) Make sure latest Perl versions don't interpret some generated C array
7732 code as Perl array code in the crypto/err/err_genc.pl script.
7733 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7735 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7736 not many people have the assembler. Various Win32 compilation fixes and
7737 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7741 *) Modify configure script 'Configure' to automatically create crypto/date.h
7742 file under Win32 and also build pem.h from pem.org. New script
7743 util/mkfiles.pl to create the MINFO file on environments that can't do a
7744 'make files': perl util/mkfiles.pl >MINFO should work.
7747 *) Major rework of DES function declarations, in the pursuit of correctness
7748 and purity. As a result, many evil casts evaporated, and some weirdness,
7749 too. You may find this causes warnings in your code. Zapping your evil
7750 casts will probably fix them. Mostly.
7753 *) Fix for a typo in asn1.h. Bug fix to object creation script
7754 obj_dat.pl. It considered a zero in an object definition to mean
7755 "end of object": none of the objects in objects.h have any zeros
7756 so it wasn't spotted.
7757 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7759 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7760 Masking (CBCM). In the absence of test vectors, the best I have been able
7761 to do is check that the decrypt undoes the encrypt, so far. Send me test
7762 vectors if you have them.
7765 *) Correct calculation of key length for export ciphers (too much space was
7766 allocated for null ciphers). This has not been tested!
7769 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7770 message is now correct (it understands "crypto" and "ssl" on its
7771 command line). There is also now an "update" option. This will update
7772 the util/ssleay.num and util/libeay.num files with any new functions.
7774 perl util/mkdef.pl crypto ssl update
7775 it will update them.
7778 *) Overhauled the Perl interface (perl/*):
7779 - ported BN stuff to OpenSSL's different BN library
7780 - made the perl/ source tree CVS-aware
7781 - renamed the package from SSLeay to OpenSSL (the files still contain
7782 their history because I've copied them in the repository)
7783 - removed obsolete files (the test scripts will be replaced
7784 by better Test::Harness variants in the future)
7785 [Ralf S. Engelschall]
7787 *) First cut for a very conservative source tree cleanup:
7788 1. merge various obsolete readme texts into doc/ssleay.txt
7789 where we collect the old documents and readme texts.
7790 2. remove the first part of files where I'm already sure that we no
7791 longer need them because of three reasons: either they are just temporary
7792 files which were left by Eric or they are preserved original files where
7793 I've verified that the diff is also available in the CVS via "cvs diff
7794 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7795 the crypto/md/ stuff).
7796 [Ralf S. Engelschall]
7798 *) More extension code. Incomplete support for subject and issuer alt
7799 name, issuer and authority key id. Change the i2v function parameters
7800 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7801 what that's for :-) Fix to ASN1 macro which messed up
7802 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7805 *) Preliminary support for ENUMERATED type. This is largely copied from the
7809 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7810 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7812 *) Make sure `make rehash' target really finds the `openssl' program.
7813 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7815 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7816 like to hear about it if this slows down other processors.
7819 *) Add CygWin32 platform information to Configure script.
7820 [Alan Batie <batie@aahz.jf.intel.com>]
7822 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7823 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7825 *) New program nseq to manipulate netscape certificate sequences
7828 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7832 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7833 but the BN code had some problems that would cause failures when
7834 doing certificate verification and some other functions.
7835 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7837 *) Add ASN1 and PEM code to support netscape certificate sequences.
7840 *) Add ASN1 and PEM code to support netscape certificate sequences.
7843 *) Add several PKIX and private extended key usage OIDs.
7846 *) Modify the 'ca' program to handle the new extension code. Modify
7847 openssl.cnf for new extension format, add comments.
7850 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7851 and add a sample to openssl.cnf so req -x509 now adds appropriate
7855 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7856 error code, add initial support to X509_print() and x509 application.
7859 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7860 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7861 stuff is currently isolated and isn't even compiled yet.
7864 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7865 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7866 Removed the versions check from X509 routines when loading extensions:
7867 this allows certain broken certificates that don't set the version
7868 properly to be processed.
7871 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7872 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7873 can still be regenerated with "make depend".
7876 *) Spelling mistake in C version of CAST-128.
7877 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7879 *) Changes to the error generation code. The perl script err-code.pl
7880 now reads in the old error codes and retains the old numbers, only
7881 adding new ones if necessary. It also only changes the .err files if new
7882 codes are added. The makefiles have been modified to only insert errors
7883 when needed (to avoid needlessly modifying header files). This is done
7884 by only inserting errors if the .err file is newer than the auto generated
7885 C file. To rebuild all the error codes from scratch (the old behaviour)
7886 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7887 or delete all the .err files.
7890 *) CAST-128 was incorrectly implemented for short keys. The C version has
7891 been fixed, but is untested. The assembler versions are also fixed, but
7892 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7893 to regenerate it if needed.
7894 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7895 Hagino <itojun@kame.net>]
7897 *) File was opened incorrectly in randfile.c.
7898 [Ulf Möller <ulf@fitug.de>]
7900 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7901 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7902 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7903 al: it's just almost always a UTCTime. Note this patch adds new error
7904 codes so do a "make errors" if there are problems.
7907 *) Correct Linux 1 recognition in config.
7908 [Ulf Möller <ulf@fitug.de>]
7910 *) Remove pointless MD5 hash when using DSA keys in ca.
7911 [Anonymous <nobody@replay.com>]
7913 *) Generate an error if given an empty string as a cert directory. Also
7914 generate an error if handed NULL (previously returned 0 to indicate an
7915 error, but didn't set one).
7916 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7918 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7921 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7922 parameters. This was causing a warning which killed off the Win32 compile.
7925 *) Remove C++ style comments from crypto/bn/bn_local.h.
7926 [Neil Costigan <neil.costigan@celocom.com>]
7928 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7929 based on a text string, looking up short and long names and finally
7930 "dot" format. The "dot" format stuff didn't work. Added new function
7931 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7932 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7933 OID is not part of the table.
7936 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7937 X509_LOOKUP_by_alias().
7940 *) Sort openssl functions by name.
7943 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7944 encryption from sample DSA keys (in case anyone is interested the password
7948 *) Make _all_ *_free functions accept a NULL pointer.
7949 [Frans Heymans <fheymans@isaserver.be>]
7951 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7953 [Anonymous <nobody@replay.com>]
7955 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7956 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7958 *) Don't blow it for numeric -newkey arguments to apps/req.
7959 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7961 *) Temp key "for export" tests were wrong in s3_srvr.c.
7962 [Anonymous <nobody@replay.com>]
7964 *) Add prototype for temp key callback functions
7965 SSL_CTX_set_tmp_{rsa,dh}_callback().
7968 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7969 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7972 *) X509_name_add_entry() freed the wrong thing after an error.
7973 [Arne Ansper <arne@ats.cyber.ee>]
7975 *) rsa_eay.c would attempt to free a NULL context.
7976 [Arne Ansper <arne@ats.cyber.ee>]
7978 *) BIO_s_socket() had a broken should_retry() on Windoze.
7979 [Arne Ansper <arne@ats.cyber.ee>]
7981 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7982 [Arne Ansper <arne@ats.cyber.ee>]
7984 *) Make sure the already existing X509_STORE->depth variable is initialized
7985 in X509_STORE_new(), but document the fact that this variable is still
7986 unused in the certificate verification process.
7987 [Ralf S. Engelschall]
7989 *) Fix the various library and apps files to free up pkeys obtained from
7990 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7993 *) Fix reference counting in X509_PUBKEY_get(). This makes
7994 demos/maurice/example2.c work, amongst others, probably.
7995 [Steve Henson and Ben Laurie]
7997 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7998 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7999 are no longer created. This way we have a single and consistent command
8000 line interface `openssl <command>', similar to `cvs <command>'.
8001 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8003 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8004 BIT STRING wrapper always have zero unused bits.
8007 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8010 *) Make the top-level INSTALL documentation easier to understand.
8013 *) Makefiles updated to exit if an error occurs in a sub-directory
8014 make (including if user presses ^C) [Paul Sutton]
8016 *) Make Montgomery context stuff explicit in RSA data structure.
8019 *) Fix build order of pem and err to allow for generated pem.h.
8022 *) Fix renumbering bug in X509_NAME_delete_entry().
8025 *) Enhanced the err-ins.pl script so it makes the error library number
8026 global and can add a library name. This is needed for external ASN1 and
8027 other error libraries.
8030 *) Fixed sk_insert which never worked properly.
8033 *) Fix ASN1 macros so they can handle indefinite length construted
8034 EXPLICIT tags. Some non standard certificates use these: they can now
8038 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8039 into a single doc/ssleay.txt bundle. This way the information is still
8040 preserved but no longer messes up this directory. Now it's new room for
8041 the new set of documenation files.
8042 [Ralf S. Engelschall]
8044 *) SETs were incorrectly DER encoded. This was a major pain, because they
8045 shared code with SEQUENCEs, which aren't coded the same. This means that
8046 almost everything to do with SETs or SEQUENCEs has either changed name or
8047 number of arguments.
8048 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8050 *) Fix test data to work with the above.
8053 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8054 was already fixed by Eric for 0.9.1 it seems.
8055 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8057 *) Autodetect FreeBSD3.
8060 *) Fix various bugs in Configure. This affects the following platforms:
8064 unixware-2.0-pentium
8068 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8069 before they are needed.
8072 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8076 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8078 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8079 changed SSLeay to OpenSSL in version strings.
8080 [Ralf S. Engelschall]
8082 *) Some fixups to the top-level documents.
8085 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8086 because the symlink to include/ was missing.
8087 [Ralf S. Engelschall]
8089 *) Incorporated the popular no-RSA/DSA-only patches
8090 which allow to compile a RSA-free SSLeay.
8091 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8093 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8094 when "ssleay" is still not found.
8095 [Ralf S. Engelschall]
8097 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8098 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8100 *) Updated the README file.
8101 [Ralf S. Engelschall]
8103 *) Added various .cvsignore files in the CVS repository subdirs
8104 to make a "cvs update" really silent.
8105 [Ralf S. Engelschall]
8107 *) Recompiled the error-definition header files and added
8108 missing symbols to the Win32 linker tables.
8109 [Ralf S. Engelschall]
8111 *) Cleaned up the top-level documents;
8112 o new files: CHANGES and LICENSE
8113 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8114 o merged COPYRIGHT into LICENSE
8115 o removed obsolete TODO file
8116 o renamed MICROSOFT to INSTALL.W32
8117 [Ralf S. Engelschall]
8119 *) Removed dummy files from the 0.9.1b source tree:
8120 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8121 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8122 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8123 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8124 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8125 [Ralf S. Engelschall]
8127 *) Added various platform portability fixes.
8130 *) The Genesis of the OpenSSL rpject:
8131 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8132 Young and Tim J. Hudson created while they were working for C2Net until
8134 [The OpenSSL Project]
8137 Changes between 0.9.0b and 0.9.1b [not released]
8139 *) Updated a few CA certificates under certs/
8142 *) Changed some BIGNUM api stuff.
8145 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8146 DGUX x86, Linux Alpha, etc.
8149 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8150 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8154 *) Add -strparse option to asn1pars program which parses nested
8156 [Dr Stephen Henson <shenson@bigfoot.com>]
8158 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8161 *) DSA fix for "ca" program.
8164 *) Added "-genkey" option to "dsaparam" program.
8167 *) Added RIPE MD160 (rmd160) message digest.
8170 *) Added -a (all) option to "ssleay version" command.
8173 *) Added PLATFORM define which is the id given to Configure.
8176 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8179 *) Extended the ASN.1 parser routines.
8182 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8185 *) Added a BN_CTX to the BN library.
8188 *) Fixed the weak key values in DES library
8191 *) Changed API in EVP library for cipher aliases.
8194 *) Added support for RC2/64bit cipher.
8197 *) Converted the lhash library to the crypto/mem.c functions.
8200 *) Added more recognized ASN.1 object ids.
8203 *) Added more RSA padding checks for SSL/TLS.
8206 *) Added BIO proxy/filter functionality.
8209 *) Added extra_certs to SSL_CTX which can be used
8210 send extra CA certificates to the client in the CA cert chain sending
8211 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8214 *) Now Fortezza is denied in the authentication phase because
8215 this is key exchange mechanism is not supported by SSLeay at all.
8218 *) Additional PKCS1 checks.
8221 *) Support the string "TLSv1" for all TLS v1 ciphers.
8224 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8225 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8228 *) Fixed a few memory leaks.
8231 *) Fixed various code and comment typos.
8234 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8235 bytes sent in the client random.
8236 [Edward Bishop <ebishop@spyglass.com>]