5 Changes between 0.9.8e and 0.9.8f [xx XXX xxxx]
7 *) Add RFC4507 support to OpenSSL. This includes the corrections in
8 RFC4507bis. The encrypted ticket format is an encrypted encoded
9 SSL_SESSION structure, that way new session features are automatically
12 If a client application caches session in an SSL_SESSION structure
13 support is transparent because tickets are now stored in the encoded
16 The SSL_CTX structure automatically generates keys for ticket
17 protection in servers so again support should be possible
18 with no application modification.
20 If a client or server wishes to disable RFC4507 support then the option
21 SSL_OP_NO_TICKET can be set.
23 Add a TLS extension debugging callback to allow the contents of any client
24 or server extensions to be examined.
27 *) Add initial support for TLS extensions, specifically for the server_name
28 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
29 have new members for a host name. The SSL data structure has an
30 additional member SSL_CTX *initial_ctx so that new sessions can be
31 stored in that context to allow for session resumption, even after the
32 SSL has been switched to a new SSL_CTX in reaction to a client's
33 server_name extension.
35 New functions (subject to change):
38 SSL_get_servername_type()
41 New CTRL codes and macros (subject to change):
43 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
44 - SSL_CTX_set_tlsext_servername_callback()
45 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
46 - SSL_CTX_set_tlsext_servername_arg()
47 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
49 openssl s_client has a new '-servername ...' option.
51 openssl s_server has new options '-servername_host ...', '-cert2 ...',
52 '-key2 ...', '-servername_fatal' (subject to change). This allows
53 testing the HostName extension for a specific single host name ('-cert'
54 and '-key' remain fallbacks for handshakes without HostName
55 negotiation). If the unrecogninzed_name alert has to be sent, this by
56 default is a warning; it becomes fatal with the '-servername_fatal'
59 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
61 *) Add AES and SSE2 assembly language support to VC++ build.
64 *) Mitigate attack on final subtraction in Montgomery reduction.
67 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
68 (which previously caused an internal error).
71 *) Squeeze another 10% out of IGE mode when in != out.
74 *) AES IGE mode speedup.
75 [Dean Gaudet (Google)]
77 *) Add the Korean symmetric 128-bit cipher SEED (see
78 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
79 add SEED ciphersuites from RFC 4162:
81 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
82 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
83 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
84 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
86 To minimize changes between patchlevels in the OpenSSL 0.9.8
87 series, SEED remains excluded from compilation unless OpenSSL
88 is configured with 'enable-seed'.
91 *) Mitigate branch prediction attacks, which can be practical if a
92 single processor is shared, allowing a spy process to extract
93 information. For detailed background information, see
94 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
95 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
96 and Necessary Software Countermeasures"). The core of the change
97 are new versions BN_div_no_branch() and
98 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
99 respectively, which are slower, but avoid the security-relevant
100 conditional branches. These are automatically called by BN_div()
101 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
102 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
103 remove a conditional branch.
105 BN_FLG_CONSTTIME is the new name for the previous
106 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
107 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
108 in the exponent causes BN_mod_exp_mont() to use the alternative
109 implementation in BN_mod_exp_mont_consttime().) The old name
110 remains as a deprecated alias.
112 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
113 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
114 constant-time implementations for more than just exponentiation.
115 Here too the old name is kept as a deprecated alias.
117 BN_BLINDING_new() will now use BN_dup() for the modulus so that
118 the BN_BLINDING structure gets an independent copy of the
119 modulus. This means that the previous "BIGNUM *m" argument to
120 BN_BLINDING_new() and to BN_BLINDING_create_param() now
121 essentially becomes "const BIGNUM *m", although we can't actually
122 change this in the header file before 0.9.9. It allows
123 RSA_setup_blinding() to use BN_with_flags() on the modulus to
124 enable BN_FLG_CONSTTIME.
126 [Matthew D Wood (Intel Corp)]
128 *) In the SSL/TLS server implementation, be strict about session ID
129 context matching (which matters if an application uses a single
130 external cache for different purposes). Previously,
131 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
132 set. This did ensure strict client verification, but meant that,
133 with applications using a single external cache for quite
134 different requirements, clients could circumvent ciphersuite
135 restrictions for a given session ID context by starting a session
136 in a different context.
139 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
140 a ciphersuite string such as "DEFAULT:RSA" cannot enable
141 authentication-only ciphersuites.
144 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
146 *) Since AES128 and AES256 (and similarly Camellia128 and
147 Camellia256) share a single mask bit in the logic of
148 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
149 kludge to work properly if AES128 is available and AES256 isn't
150 (or if Camellia128 is available and Camellia256 isn't).
153 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
154 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
155 When a point or a seed is encoded in a BIT STRING, we need to
156 prevent the removal of trailing zero bits to get the proper DER
157 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
158 of a NamedBitList, for which trailing 0 bits need to be removed.)
161 *) Have SSL/TLS server implementation tolerate "mismatched" record
162 protocol version while receiving ClientHello even if the
163 ClientHello is fragmented. (The server can't insist on the
164 particular protocol version it has chosen before the ServerHello
165 message has informed the client about his choice.)
168 *) Add RFC 3779 support.
169 [Rob Austein for ARIN, Ben Laurie]
171 *) Load error codes if they are not already present instead of using a
172 static variable. This allows them to be cleanly unloaded and reloaded.
173 Improve header file function name parsing.
176 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
177 or CAPABILITY handshake as required by RFCs.
180 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
182 *) Introduce limits to prevent malicious keys being able to
183 cause a denial of service. (CVE-2006-2940)
184 [Steve Henson, Bodo Moeller]
186 *) Fix ASN.1 parsing of certain invalid structures that can result
187 in a denial of service. (CVE-2006-2937) [Steve Henson]
189 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
190 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
192 *) Fix SSL client code which could crash if connecting to a
193 malicious SSLv2 server. (CVE-2006-4343)
194 [Tavis Ormandy and Will Drewry, Google Security Team]
196 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
197 match only those. Before that, "AES256-SHA" would be interpreted
198 as a pattern and match "AES128-SHA" too (since AES128-SHA got
199 the same strength classification in 0.9.7h) as we currently only
200 have a single AES bit in the ciphersuite description bitmap.
201 That change, however, also applied to ciphersuite strings such as
202 "RC4-MD5" that intentionally matched multiple ciphersuites --
203 namely, SSL 2.0 ciphersuites in addition to the more common ones
204 from SSL 3.0/TLS 1.0.
206 So we change the selection algorithm again: Naming an explicit
207 ciphersuite selects this one ciphersuite, and any other similar
208 ciphersuite (same bitmap) from *other* protocol versions.
209 Thus, "RC4-MD5" again will properly select both the SSL 2.0
210 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
212 Since SSL 2.0 does not have any ciphersuites for which the
213 128/256 bit distinction would be relevant, this works for now.
214 The proper fix will be to use different bits for AES128 and
215 AES256, which would have avoided the problems from the beginning;
216 however, bits are scarce, so we can only do this in a new release
217 (not just a patchlevel) when we can change the SSL_CIPHER
218 definition to split the single 'unsigned long mask' bitmap into
219 multiple values to extend the available space.
223 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
225 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
226 (CVE-2006-4339) [Ben Laurie and Google Security Team]
228 *) Add AES IGE and biIGE modes.
231 *) Change the Unix randomness entropy gathering to use poll() when
232 possible instead of select(), since the latter has some
233 undesirable limitations.
234 [Darryl Miles via Richard Levitte and Bodo Moeller]
236 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
237 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
238 cannot be implicitly activated as part of, e.g., the "AES" alias.
239 However, please upgrade to OpenSSL 0.9.9[-dev] for
240 non-experimental use of the ECC ciphersuites to get TLS extension
241 support, which is required for curve and point format negotiation
242 to avoid potential handshake problems.
245 *) Disable rogue ciphersuites:
247 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
248 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
249 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
251 The latter two were purportedly from
252 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
255 Also deactivate the remaining ciphersuites from
256 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
257 unofficial, and the ID has long expired.
260 *) Fix RSA blinding Heisenbug (problems sometimes occured on
261 dual-core machines) and other potential thread-safety issues.
264 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
265 versions), which is now available for royalty-free use
266 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
267 Also, add Camellia TLS ciphersuites from RFC 4132.
269 To minimize changes between patchlevels in the OpenSSL 0.9.8
270 series, Camellia remains excluded from compilation unless OpenSSL
271 is configured with 'enable-camellia'.
274 *) Disable the padding bug check when compression is in use. The padding
275 bug check assumes the first packet is of even length, this is not
276 necessarily true if compresssion is enabled and can result in false
277 positives causing handshake failure. The actual bug test is ancient
278 code so it is hoped that implementations will either have fixed it by
279 now or any which still have the bug do not support compression.
282 Changes between 0.9.8a and 0.9.8b [04 May 2006]
284 *) When applying a cipher rule check to see if string match is an explicit
285 cipher suite and only match that one cipher suite if it is.
288 *) Link in manifests for VC++ if needed.
289 [Austin Ziegler <halostatue@gmail.com>]
291 *) Update support for ECC-based TLS ciphersuites according to
292 draft-ietf-tls-ecc-12.txt with proposed changes (but without
293 TLS extensions, which are supported starting with the 0.9.9
294 branch, not in the OpenSSL 0.9.8 branch).
297 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
298 opaque EVP_CIPHER_CTX handling.
301 *) Fixes and enhancements to zlib compression code. We now only use
302 "zlib1.dll" and use the default __cdecl calling convention on Win32
303 to conform with the standards mentioned here:
304 http://www.zlib.net/DLL_FAQ.txt
305 Static zlib linking now works on Windows and the new --with-zlib-include
306 --with-zlib-lib options to Configure can be used to supply the location
307 of the headers and library. Gracefully handle case where zlib library
311 *) Several fixes and enhancements to the OID generation code. The old code
312 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
313 handle numbers larger than ULONG_MAX, truncated printing and had a
314 non standard OBJ_obj2txt() behaviour.
317 *) Add support for building of engines under engine/ as shared libraries
318 under VC++ build system.
321 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
322 Hopefully, we will not see any false combination of paths any more.
325 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
327 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
328 (part of SSL_OP_ALL). This option used to disable the
329 countermeasure against man-in-the-middle protocol-version
330 rollback in the SSL 2.0 server implementation, which is a bad
331 idea. (CVE-2005-2969)
333 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
334 for Information Security, National Institute of Advanced Industrial
335 Science and Technology [AIST], Japan)]
337 *) Add two function to clear and return the verify parameter flags.
340 *) Keep cipherlists sorted in the source instead of sorting them at
341 runtime, thus removing the need for a lock.
344 *) Avoid some small subgroup attacks in Diffie-Hellman.
345 [Nick Mathewson and Ben Laurie]
347 *) Add functions for well-known primes.
350 *) Extended Windows CE support.
351 [Satoshi Nakamura and Andy Polyakov]
353 *) Initialize SSL_METHOD structures at compile time instead of during
354 runtime, thus removing the need for a lock.
357 *) Make PKCS7_decrypt() work even if no certificate is supplied by
358 attempting to decrypt each encrypted key in turn. Add support to
362 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
364 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
367 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
370 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
371 key into the same file any more.
374 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
377 *) Add -utf8 command line and config file option to 'ca'.
378 [Stefan <stf@udoma.org]
380 *) Removed the macro des_crypt(), as it seems to conflict with some
381 libraries. Use DES_crypt().
384 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
385 involves renaming the source and generated shared-libs for
386 both. The engines will accept the corrected or legacy ids
387 ('ncipher' and '4758_cca' respectively) when binding. NB,
388 this only applies when building 'shared'.
389 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
391 *) Add attribute functions to EVP_PKEY structure. Modify
392 PKCS12_create() to recognize a CSP name attribute and
393 use it. Make -CSP option work again in pkcs12 utility.
396 *) Add new functionality to the bn blinding code:
397 - automatic re-creation of the BN_BLINDING parameters after
398 a fixed number of uses (currently 32)
399 - add new function for parameter creation
400 - introduce flags to control the update behaviour of the
401 BN_BLINDING parameters
402 - hide BN_BLINDING structure
403 Add a second BN_BLINDING slot to the RSA structure to improve
404 performance when a single RSA object is shared among several
408 *) Add support for DTLS.
409 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
411 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
412 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
415 *) Remove buggy and incompletet DH cert support from
416 ssl/ssl_rsa.c and ssl/s3_both.c
419 *) Use SHA-1 instead of MD5 as the default digest algorithm for
420 the apps/openssl applications.
423 *) Compile clean with "-Wall -Wmissing-prototypes
424 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
425 DEBUG_SAFESTACK must also be set.
428 *) Change ./Configure so that certain algorithms can be disabled by default.
429 The new counterpiece to "no-xxx" is "enable-xxx".
431 The patented RC5 and MDC2 algorithms will now be disabled unless
432 "enable-rc5" and "enable-mdc2", respectively, are specified.
434 (IDEA remains enabled despite being patented. This is because IDEA
435 is frequently required for interoperability, and there is no license
436 fee for non-commercial use. As before, "no-idea" can be used to
437 avoid this algorithm.)
441 *) Add processing of proxy certificates (see RFC 3820). This work was
442 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
443 EGEE (Enabling Grids for E-science in Europe).
446 *) RC4 performance overhaul on modern architectures/implementations, such
447 as Intel P4, IA-64 and AMD64.
450 *) New utility extract-section.pl. This can be used specify an alternative
451 section number in a pod file instead of having to treat each file as
452 a separate case in Makefile. This can be done by adding two lines to the
455 =for comment openssl_section:XXX
457 The blank line is mandatory.
461 *) New arguments -certform, -keyform and -pass for s_client and s_server
462 to allow alternative format key and certificate files and passphrase
466 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
467 update associated structures and add various utility functions.
469 Add new policy related verify parameters, include policy checking in
470 standard verify code. Enhance 'smime' application with extra parameters
471 to support policy checking and print out.
474 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
475 Nehemiah processors. These extensions support AES encryption in hardware
476 as well as RNG (though RNG support is currently disabled).
477 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
479 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
482 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
483 [Andy Polyakov and a number of other people]
485 *) Improved PowerPC platform support. Most notably BIGNUM assembler
486 implementation contributed by IBM.
487 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
489 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
490 exponent rather than 'unsigned long'. There is a corresponding change to
491 the new 'rsa_keygen' element of the RSA_METHOD structure.
492 [Jelte Jansen, Geoff Thorpe]
494 *) Functionality for creating the initial serial number file is now
495 moved from CA.pl to the 'ca' utility with a new option -create_serial.
497 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
498 number file to 1, which is bound to cause problems. To avoid
499 the problems while respecting compatibility between different 0.9.7
500 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
501 CA.pl for serial number initialization. With the new release 0.9.8,
502 we can fix the problem directly in the 'ca' utility.)
505 *) Reduced header interdepencies by declaring more opaque objects in
506 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
507 give fewer recursive includes, which could break lazy source code - so
508 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
509 developers should define this symbol when building and using openssl to
510 ensure they track the recommended behaviour, interfaces, [etc], but
511 backwards-compatible behaviour prevails when this isn't defined.
514 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
517 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
518 This will generate a random key of the appropriate length based on the
519 cipher context. The EVP_CIPHER can provide its own random key generation
520 routine to support keys of a specific form. This is used in the des and
521 3des routines to generate a key of the correct parity. Update S/MIME
522 code to use new functions and hence generate correct parity DES keys.
523 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
524 valid (weak or incorrect parity).
527 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
528 as looking them up. This is useful when the verified structure may contain
529 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
530 present unless the new PKCS7_NO_CRL flag is asserted.
533 *) Extend ASN1 oid configuration module. It now additionally accepts the
536 shortName = some long name, 1.2.3.4
539 *) Reimplemented the BN_CTX implementation. There is now no more static
540 limitation on the number of variables it can handle nor the depth of the
541 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
542 information can now expand as required, and rather than having a single
543 static array of bignums, BN_CTX now uses a linked-list of such arrays
544 allowing it to expand on demand whilst maintaining the usefulness of
548 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
549 to allow all RSA operations to function using a single BN_CTX.
552 *) Preliminary support for certificate policy evaluation and checking. This
553 is initially intended to pass the tests outlined in "Conformance Testing
554 of Relying Party Client Certificate Path Processing Logic" v1.07.
557 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
558 remained unused and not that useful. A variety of other little bignum
559 tweaks and fixes have also been made continuing on from the audit (see
563 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
564 associated ASN1, EVP and SSL functions and old ASN1 macros.
567 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
568 and this should never fail. So the return value from the use of
569 BN_set_word() (which can fail due to needless expansion) is now deprecated;
570 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
573 *) BN_CTX_get() should return zero-valued bignums, providing the same
574 initialised value as BN_new().
575 [Geoff Thorpe, suggested by Ulf Möller]
577 *) Support for inhibitAnyPolicy certificate extension.
580 *) An audit of the BIGNUM code is underway, for which debugging code is
581 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
582 is considered valid when processing BIGNUMs, and causes execution to
583 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
584 further steps are taken to deliberately pollute unused data in BIGNUM
585 structures to try and expose faulty code further on. For now, openssl will
586 (in its default mode of operation) continue to tolerate the inconsistent
587 forms that it has tolerated in the past, but authors and packagers should
588 consider trying openssl and their own applications when compiled with
589 these debugging symbols defined. It will help highlight potential bugs in
590 their own code, and will improve the test coverage for OpenSSL itself. At
591 some point, these tighter rules will become openssl's default to improve
592 maintainability, though the assert()s and other overheads will remain only
593 in debugging configurations. See bn.h for more details.
594 [Geoff Thorpe, Nils Larsch, Ulf Möller]
596 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
597 that can only be obtained through BN_CTX_new() (which implicitly
598 initialises it). The presence of this function only made it possible
599 to overwrite an existing structure (and cause memory leaks).
602 *) Because of the callback-based approach for implementing LHASH as a
603 template type, lh_insert() adds opaque objects to hash-tables and
604 lh_doall() or lh_doall_arg() are typically used with a destructor callback
605 to clean up those corresponding objects before destroying the hash table
606 (and losing the object pointers). So some over-zealous constifications in
607 LHASH have been relaxed so that lh_insert() does not take (nor store) the
608 objects as "const" and the lh_doall[_arg] callback wrappers are not
609 prototyped to have "const" restrictions on the object pointers they are
610 given (and so aren't required to cast them away any more).
613 *) The tmdiff.h API was so ugly and minimal that our own timing utility
614 (speed) prefers to use its own implementation. The two implementations
615 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
616 its object type properly exposed (MS_TM) instead of casting to/from "char
617 *". This may still change yet if someone realises MS_TM and "ms_time_***"
618 aren't necessarily the greatest nomenclatures - but this is what was used
619 internally to the implementation so I've used that for now.
622 *) Ensure that deprecated functions do not get compiled when
623 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
624 the self-tests were still using deprecated key-generation functions so
625 these have been updated also.
628 *) Reorganise PKCS#7 code to separate the digest location functionality
629 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
630 New function PKCS7_set_digest() to set the digest type for PKCS#7
631 digestedData type. Add additional code to correctly generate the
632 digestedData type and add support for this type in PKCS7 initialization
636 *) New function PKCS7_set0_type_other() this initializes a PKCS7
637 structure of type "other".
640 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
641 sure the loop does correctly stop and breaking ("division by zero")
642 modulus operations are not performed. The (pre-generated) prime
643 table crypto/bn/bn_prime.h was already correct, but it could not be
644 re-generated on some platforms because of the "division by zero"
645 situation in the script.
646 [Ralf S. Engelschall]
648 *) Update support for ECC-based TLS ciphersuites according to
649 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
650 SHA-1 now is only used for "small" curves (where the
651 representation of a field element takes up to 24 bytes); for
652 larger curves, the field element resulting from ECDH is directly
653 used as premaster secret.
654 [Douglas Stebila (Sun Microsystems Laboratories)]
656 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
657 curve secp160r1 to the tests.
658 [Douglas Stebila (Sun Microsystems Laboratories)]
660 *) Add the possibility to load symbols globally with DSO.
661 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
663 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
664 control of the error stack.
667 *) Add support for STORE in ENGINE.
670 *) Add the STORE type. The intention is to provide a common interface
671 to certificate and key stores, be they simple file-based stores, or
672 HSM-type store, or LDAP stores, or...
673 NOTE: The code is currently UNTESTED and isn't really used anywhere.
676 *) Add a generic structure called OPENSSL_ITEM. This can be used to
677 pass a list of arguments to any function as well as provide a way
678 for a function to pass data back to the caller.
681 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
682 works like BUF_strdup() but can be used to duplicate a portion of
683 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
687 *) Add the function sk_find_ex() which works like sk_find(), but will
688 return an index to an element even if an exact match couldn't be
689 found. The index is guaranteed to point at the element where the
690 searched-for key would be inserted to preserve sorting order.
693 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
694 takes an extra flags argument for optional functionality. Currently,
695 the following flags are defined:
697 OBJ_BSEARCH_VALUE_ON_NOMATCH
698 This one gets OBJ_bsearch_ex() to return a pointer to the first
699 element where the comparing function returns a negative or zero
702 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
703 This one gets OBJ_bsearch_ex() to return a pointer to the first
704 element where the comparing function returns zero. This is useful
705 if there are more than one element where the comparing function
709 *) Make it possible to create self-signed certificates with 'openssl ca'
710 in such a way that the self-signed certificate becomes part of the
711 CA database and uses the same mechanisms for serial number generation
712 as all other certificate signing. The new flag '-selfsign' enables
713 this functionality. Adapt CA.sh and CA.pl.in.
716 *) Add functionality to check the public key of a certificate request
717 against a given private. This is useful to check that a certificate
718 request can be signed by that key (self-signing).
721 *) Make it possible to have multiple active certificates with the same
722 subject in the CA index file. This is done only if the keyword
723 'unique_subject' is set to 'no' in the main CA section (default
724 if 'CA_default') of the configuration file. The value is saved
725 with the database itself in a separate index attribute file,
726 named like the index file with '.attr' appended to the name.
729 *) Generate muti valued AVAs using '+' notation in config files for
733 *) Support for nameConstraints certificate extension.
736 *) Support for policyConstraints certificate extension.
739 *) Support for policyMappings certificate extension.
742 *) Make sure the default DSA_METHOD implementation only uses its
743 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
744 and change its own handlers to be NULL so as to remove unnecessary
745 indirection. This lets alternative implementations fallback to the
746 default implementation more easily.
749 *) Support for directoryName in GeneralName related extensions
753 *) Make it possible to link applications using Makefile.shared.
754 Make that possible even when linking against static libraries!
757 *) Support for single pass processing for S/MIME signing. This now
758 means that S/MIME signing can be done from a pipe, in addition
759 cleartext signing (multipart/signed type) is effectively streaming
760 and the signed data does not need to be all held in memory.
762 This is done with a new flag PKCS7_STREAM. When this flag is set
763 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
764 is done after the data is output (and digests calculated) in
768 *) Add full support for -rpath/-R, both in shared libraries and
769 applications, at least on the platforms where it's known how
773 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
774 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
775 will now compute a table of multiples of the generator that
776 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
777 faster (notably in the case of a single point multiplication,
779 [Nils Larsch, Bodo Moeller]
781 *) IPv6 support for certificate extensions. The various extensions
782 which use the IP:a.b.c.d can now take IPv6 addresses using the
783 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
787 *) Added an ENGINE that implements RSA by performing private key
788 exponentiations with the GMP library. The conversions to and from
789 GMP's mpz_t format aren't optimised nor are any montgomery forms
790 cached, and on x86 it appears OpenSSL's own performance has caught up.
791 However there are likely to be other architectures where GMP could
792 provide a boost. This ENGINE is not built in by default, but it can be
793 specified at Configure time and should be accompanied by the necessary
794 linker additions, eg;
795 ./config -DOPENSSL_USE_GMP -lgmp
798 *) "openssl engine" will not display ENGINE/DSO load failure errors when
799 testing availability of engines with "-t" - the old behaviour is
800 produced by increasing the feature's verbosity with "-tt".
803 *) ECDSA routines: under certain error conditions uninitialized BN objects
804 could be freed. Solution: make sure initialization is performed early
805 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
809 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
810 and DH_METHOD (eg. by ENGINE implementations) to override the normal
811 software implementations. For DSA and DH, parameter generation can
812 also be overriden by providing the appropriate method callbacks.
815 *) Change the "progress" mechanism used in key-generation and
816 primality testing to functions that take a new BN_GENCB pointer in
817 place of callback/argument pairs. The new API functions have "_ex"
818 postfixes and the older functions are reimplemented as wrappers for
819 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
820 declarations of the old functions to help (graceful) attempts to
821 migrate to the new functions. Also, the new key-generation API
822 functions operate on a caller-supplied key-structure and return
823 success/failure rather than returning a key or NULL - this is to
824 help make "keygen" another member function of RSA_METHOD etc.
826 Example for using the new callback interface:
828 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
832 BN_GENCB_set(&my_cb, my_callback, my_arg);
834 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
835 /* For the meaning of a, b in calls to my_callback(), see the
836 * documentation of the function that calls the callback.
837 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
838 * my_callback should return 1 if it wants BN_is_prime_ex()
839 * to continue, or 0 to stop.
844 *) Change the ZLIB compression method to be stateful, and make it
845 available to TLS with the number defined in
846 draft-ietf-tls-compression-04.txt.
849 *) Add the ASN.1 structures and functions for CertificatePair, which
850 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
852 CertificatePair ::= SEQUENCE {
853 forward [0] Certificate OPTIONAL,
854 reverse [1] Certificate OPTIONAL,
855 -- at least one of the pair shall be present -- }
857 Also implement the PEM functions to read and write certificate
858 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
860 This needed to be defined, mostly for the sake of the LDAP
861 attribute crossCertificatePair, but may prove useful elsewhere as
865 *) Make it possible to inhibit symlinking of shared libraries in
866 Makefile.shared, for Cygwin's sake.
869 *) Extend the BIGNUM API by creating a function
870 void BN_set_negative(BIGNUM *a, int neg);
871 and a macro that behave like
872 int BN_is_negative(const BIGNUM *a);
874 to avoid the need to access 'a->neg' directly in applications.
877 *) Implement fast modular reduction for pseudo-Mersenne primes
878 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
879 EC_GROUP_new_curve_GFp() will now automatically use this
881 [Nils Larsch <nla@trustcenter.de>]
883 *) Add new lock type (CRYPTO_LOCK_BN).
886 *) Change the ENGINE framework to automatically load engines
887 dynamically from specific directories unless they could be
888 found to already be built in or loaded. Move all the
889 current engines except for the cryptodev one to a new
891 The engines in engines/ are built as shared libraries if
892 the "shared" options was given to ./Configure or ./config.
893 Otherwise, they are inserted in libcrypto.a.
894 /usr/local/ssl/engines is the default directory for dynamic
895 engines, but that can be overriden at configure time through
896 the usual use of --prefix and/or --openssldir, and at run
897 time with the environment variable OPENSSL_ENGINES.
898 [Geoff Thorpe and Richard Levitte]
900 *) Add Makefile.shared, a helper makefile to build shared
901 libraries. Addapt Makefile.org.
904 *) Add version info to Win32 DLLs.
905 [Peter 'Luna' Runestig" <peter@runestig.com>]
907 *) Add new 'medium level' PKCS#12 API. Certificates and keys
908 can be added using this API to created arbitrary PKCS#12
909 files while avoiding the low level API.
911 New options to PKCS12_create(), key or cert can be NULL and
912 will then be omitted from the output file. The encryption
913 algorithm NIDs can be set to -1 for no encryption, the mac
914 iteration count can be set to 0 to omit the mac.
916 Enhance pkcs12 utility by making the -nokeys and -nocerts
917 options work when creating a PKCS#12 file. New option -nomac
918 to omit the mac, NONE can be set for an encryption algorithm.
919 New code is modified to use the enhanced PKCS12_create()
920 instead of the low level API.
923 *) Extend ASN1 encoder to support indefinite length constructed
924 encoding. This can output sequences tags and octet strings in
925 this form. Modify pk7_asn1.c to support indefinite length
926 encoding. This is experimental and needs additional code to
927 be useful, such as an ASN1 bio and some enhanced streaming
930 Extend template encode functionality so that tagging is passed
931 down to the template encoder.
934 *) Let 'openssl req' fail if an argument to '-newkey' is not
935 recognized instead of using RSA as a default.
938 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
939 As these are not official, they are not included in "ALL";
940 the "ECCdraft" ciphersuite group alias can be used to select them.
941 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
943 *) Add ECDH engine support.
944 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
946 *) Add ECDH in new directory crypto/ecdh/.
947 [Douglas Stebila (Sun Microsystems Laboratories)]
949 *) Let BN_rand_range() abort with an error after 100 iterations
950 without success (which indicates a broken PRNG).
953 *) Change BN_mod_sqrt() so that it verifies that the input value
954 is really the square of the return value. (Previously,
955 BN_mod_sqrt would show GIGO behaviour.)
958 *) Add named elliptic curves over binary fields from X9.62, SECG,
959 and WAP/WTLS; add OIDs that were still missing.
961 [Sheueling Chang Shantz and Douglas Stebila
962 (Sun Microsystems Laboratories)]
964 *) Extend the EC library for elliptic curves over binary fields
965 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
968 EC_GF2m_simple_method
972 EC_GROUP_new_curve_GF2m
973 EC_GROUP_set_curve_GF2m
974 EC_GROUP_get_curve_GF2m
975 EC_POINT_set_affine_coordinates_GF2m
976 EC_POINT_get_affine_coordinates_GF2m
977 EC_POINT_set_compressed_coordinates_GF2m
979 Point compression for binary fields is disabled by default for
980 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
983 As binary polynomials are represented as BIGNUMs, various members
984 of the EC_GROUP and EC_POINT data structures can be shared
985 between the implementations for prime fields and binary fields;
986 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
987 are essentially identical to their ..._GFp counterparts.
988 (For simplicity, the '..._GFp' prefix has been dropped from
989 various internal method names.)
991 An internal 'field_div' method (similar to 'field_mul' and
992 'field_sqr') has been added; this is used only for binary fields.
994 [Sheueling Chang Shantz and Douglas Stebila
995 (Sun Microsystems Laboratories)]
997 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
998 through methods ('mul', 'precompute_mult').
1000 The generic implementations (now internally called 'ec_wNAF_mul'
1001 and 'ec_wNAF_precomputed_mult') remain the default if these
1002 methods are undefined.
1004 [Sheueling Chang Shantz and Douglas Stebila
1005 (Sun Microsystems Laboratories)]
1007 *) New function EC_GROUP_get_degree, which is defined through
1008 EC_METHOD. For curves over prime fields, this returns the bit
1009 length of the modulus.
1011 [Sheueling Chang Shantz and Douglas Stebila
1012 (Sun Microsystems Laboratories)]
1014 *) New functions EC_GROUP_dup, EC_POINT_dup.
1015 (These simply call ..._new and ..._copy).
1017 [Sheueling Chang Shantz and Douglas Stebila
1018 (Sun Microsystems Laboratories)]
1020 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1021 Polynomials are represented as BIGNUMs (where the sign bit is not
1022 used) in the following functions [macros]:
1025 BN_GF2m_sub [= BN_GF2m_add]
1026 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1027 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1028 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1030 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1031 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1032 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1033 BN_GF2m_cmp [= BN_ucmp]
1035 (Note that only the 'mod' functions are actually for fields GF(2^m).
1036 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1038 For some functions, an the irreducible polynomial defining a
1039 field can be given as an 'unsigned int[]' with strictly
1040 decreasing elements giving the indices of those bits that are set;
1041 i.e., p[] represents the polynomial
1042 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1044 p[0] > p[1] > ... > p[k] = 0.
1045 This applies to the following functions:
1050 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1051 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1053 BN_GF2m_mod_sqrt_arr
1054 BN_GF2m_mod_solve_quad_arr
1058 Conversion can be performed by the following functions:
1063 bntest.c has additional tests for binary polynomial arithmetic.
1065 Two implementations for BN_GF2m_mod_div() are available.
1066 The default algorithm simply uses BN_GF2m_mod_inv() and
1067 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1068 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1069 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1071 [Sheueling Chang Shantz and Douglas Stebila
1072 (Sun Microsystems Laboratories)]
1074 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1075 functionality is disabled at compile-time.
1076 [Douglas Stebila <douglas.stebila@sun.com>]
1078 *) Change default behaviour of 'openssl asn1parse' so that more
1079 information is visible when viewing, e.g., a certificate:
1081 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1082 mode the content of non-printable OCTET STRINGs is output in a
1083 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1084 avoid the appearance of a printable string.
1085 [Nils Larsch <nla@trustcenter.de>]
1087 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1089 EC_GROUP_set_asn1_flag()
1090 EC_GROUP_get_asn1_flag()
1091 EC_GROUP_set_point_conversion_form()
1092 EC_GROUP_get_point_conversion_form()
1093 These control ASN1 encoding details:
1094 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1095 has been set to OPENSSL_EC_NAMED_CURVE.
1096 - Points are encoded in uncompressed form by default; options for
1097 asn1_for are as for point2oct, namely
1098 POINT_CONVERSION_COMPRESSED
1099 POINT_CONVERSION_UNCOMPRESSED
1100 POINT_CONVERSION_HYBRID
1102 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1105 EC_GROUP_get0_seed()
1106 EC_GROUP_get_seed_len()
1107 This is used only for ASN1 purposes (so far).
1108 [Nils Larsch <nla@trustcenter.de>]
1110 *) Add 'field_type' member to EC_METHOD, which holds the NID
1111 of the appropriate field type OID. The new function
1112 EC_METHOD_get_field_type() returns this value.
1113 [Nils Larsch <nla@trustcenter.de>]
1118 EC_POINT_point2hex()
1119 EC_POINT_hex2point()
1120 providing useful interfaces to EC_POINT_point2oct() and
1121 EC_POINT_oct2point().
1122 [Nils Larsch <nla@trustcenter.de>]
1124 *) Change internals of the EC library so that the functions
1125 EC_GROUP_set_generator()
1126 EC_GROUP_get_generator()
1127 EC_GROUP_get_order()
1128 EC_GROUP_get_cofactor()
1129 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1130 to methods, which would lead to unnecessary code duplication when
1131 adding different types of curves.
1132 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1134 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1135 arithmetic, and such that modified wNAFs are generated
1136 (which avoid length expansion in many cases).
1139 *) Add a function EC_GROUP_check_discriminant() (defined via
1140 EC_METHOD) that verifies that the curve discriminant is non-zero.
1142 Add a function EC_GROUP_check() that makes some sanity tests
1143 on a EC_GROUP, its generator and order. This includes
1144 EC_GROUP_check_discriminant().
1145 [Nils Larsch <nla@trustcenter.de>]
1147 *) Add ECDSA in new directory crypto/ecdsa/.
1149 Add applications 'openssl ecparam' and 'openssl ecdsa'
1150 (these are based on 'openssl dsaparam' and 'openssl dsa').
1152 ECDSA support is also included in various other files across the
1153 library. Most notably,
1154 - 'openssl req' now has a '-newkey ecdsa:file' option;
1155 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1156 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1157 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1158 them suitable for ECDSA where domain parameters must be
1159 extracted before the specific public key;
1160 - ECDSA engine support has been added.
1161 [Nils Larsch <nla@trustcenter.de>]
1163 *) Include some named elliptic curves, and add OIDs from X9.62,
1164 SECG, and WAP/WTLS. Each curve can be obtained from the new
1166 EC_GROUP_new_by_curve_name(),
1167 and the list of available named curves can be obtained with
1168 EC_get_builtin_curves().
1169 Also add a 'curve_name' member to EC_GROUP objects, which can be
1171 EC_GROUP_set_curve_name()
1172 EC_GROUP_get_curve_name()
1173 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1175 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1176 was actually never needed) and in BN_mul(). The removal in BN_mul()
1177 required a small change in bn_mul_part_recursive() and the addition
1178 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1179 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1180 bn_sub_words() and bn_add_words() except they take arrays with
1184 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1186 *) In the SSL/TLS server implementation, be strict about session ID
1187 context matching (which matters if an application uses a single
1188 external cache for different purposes). Previously,
1189 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1190 set. This did ensure strict client verification, but meant that,
1191 with applications using a single external cache for quite
1192 different requirements, clients could circumvent ciphersuite
1193 restrictions for a given session ID context by starting a session
1194 in a different context.
1197 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1199 *) Cleanse PEM buffers before freeing them since they may contain
1201 [Benjamin Bennett <ben@psc.edu>]
1203 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1204 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1205 authentication-only ciphersuites.
1208 *) Since AES128 and AES256 share a single mask bit in the logic of
1209 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1210 kludge to work properly if AES128 is available and AES256 isn't.
1213 *) Expand security boundary to match 1.1.1 module.
1216 *) Remove redundant features: hash file source, editing of test vectors
1217 modify fipsld to use external fips_premain.c signature.
1220 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1221 run algorithm test programs.
1224 *) Make algorithm test programs more tolerant of whitespace.
1227 *) Have SSL/TLS server implementation tolerate "mismatched" record
1228 protocol version while receiving ClientHello even if the
1229 ClientHello is fragmented. (The server can't insist on the
1230 particular protocol version it has chosen before the ServerHello
1231 message has informed the client about his choice.)
1234 *) Load error codes if they are not already present instead of using a
1235 static variable. This allows them to be cleanly unloaded and reloaded.
1238 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1240 *) Introduce limits to prevent malicious keys being able to
1241 cause a denial of service. (CVE-2006-2940)
1242 [Steve Henson, Bodo Moeller]
1244 *) Fix ASN.1 parsing of certain invalid structures that can result
1245 in a denial of service. (CVE-2006-2937) [Steve Henson]
1247 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1248 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1250 *) Fix SSL client code which could crash if connecting to a
1251 malicious SSLv2 server. (CVE-2006-4343)
1252 [Tavis Ormandy and Will Drewry, Google Security Team]
1254 *) Change ciphersuite string processing so that an explicit
1255 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1256 will no longer include "AES128-SHA"), and any other similar
1257 ciphersuite (same bitmap) from *other* protocol versions (so that
1258 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1259 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1260 changes from 0.9.8b and 0.9.8d.
1263 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1265 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1266 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1268 *) Change the Unix randomness entropy gathering to use poll() when
1269 possible instead of select(), since the latter has some
1270 undesirable limitations.
1271 [Darryl Miles via Richard Levitte and Bodo Moeller]
1273 *) Disable rogue ciphersuites:
1275 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1276 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1277 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1279 The latter two were purportedly from
1280 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1283 Also deactive the remaining ciphersuites from
1284 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1285 unofficial, and the ID has long expired.
1288 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1289 dual-core machines) and other potential thread-safety issues.
1292 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1294 *) Adapt fipsld and the build system to link against the validated FIPS
1295 module in FIPS mode.
1298 *) Fixes for VC++ 2005 build under Windows.
1301 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1302 from a Windows bash shell such as MSYS. It is autodetected from the
1303 "config" script when run from a VC++ environment. Modify standard VC++
1304 build to use fipscanister.o from the GNU make build.
1307 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1309 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1310 The value now differs depending on if you build for FIPS or not.
1311 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1312 safely run with a non-FIPSed libcrypto, as it may crash because of
1313 the difference induced by this change.
1316 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1318 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1319 (part of SSL_OP_ALL). This option used to disable the
1320 countermeasure against man-in-the-middle protocol-version
1321 rollback in the SSL 2.0 server implementation, which is a bad
1322 idea. (CVE-2005-2969)
1324 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1325 for Information Security, National Institute of Advanced Industrial
1326 Science and Technology [AIST], Japan)]
1328 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1329 mainly for FIPS compliance and not fully integrated at this stage.
1332 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1333 the exponentiation using a fixed-length exponent. (Otherwise,
1334 the information leaked through timing could expose the secret key
1335 after many signatures; cf. Bleichenbacher's attack on DSA with
1339 *) Make a new fixed-window mod_exp implementation the default for
1340 RSA, DSA, and DH private-key operations so that the sequence of
1341 squares and multiplies and the memory access pattern are
1342 independent of the particular secret key. This will mitigate
1343 cache-timing and potential related attacks.
1345 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1346 and this is automatically used by BN_mod_exp_mont() if the new flag
1347 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1348 will use this BN flag for private exponents unless the flag
1349 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1350 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1352 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1354 *) Change the client implementation for SSLv23_method() and
1355 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1356 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1357 (Previously, the SSL 2.0 backwards compatible Client Hello
1358 message format would be used even with SSL_OP_NO_SSLv2.)
1361 *) Add support for smime-type MIME parameter in S/MIME messages which some
1365 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1366 a threadsafe manner. Modify rsa code to use new function and add calls
1367 to dsa and dh code (which had race conditions before).
1370 *) Include the fixed error library code in the C error file definitions
1371 instead of fixing them up at runtime. This keeps the error code
1372 structures constant.
1375 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1377 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1380 *) Fixes for newer kerberos headers. NB: the casts are needed because
1381 the 'length' field is signed on one version and unsigned on another
1382 with no (?) obvious way to tell the difference, without these VC++
1383 complains. Also the "definition" of FAR (blank) is no longer included
1384 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1385 some needed definitions.
1388 *) Undo Cygwin change.
1391 *) Added support for proxy certificates according to RFC 3820.
1392 Because they may be a security thread to unaware applications,
1393 they must be explicitely allowed in run-time. See
1394 docs/HOWTO/proxy_certificates.txt for further information.
1397 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1399 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1400 server and client random values. Previously
1401 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1402 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1404 This change has negligible security impact because:
1406 1. Server and client random values still have 24 bytes of pseudo random
1409 2. Server and client random values are sent in the clear in the initial
1412 3. The master secret is derived using the premaster secret (48 bytes in
1413 size for static RSA ciphersuites) as well as client server and random
1416 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1419 [Stephen Henson, reported by UK NISCC]
1421 *) Use Windows randomness collection on Cygwin.
1424 *) Fix hang in EGD/PRNGD query when communication socket is closed
1425 prematurely by EGD/PRNGD.
1426 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1428 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1431 *) Back-port of selected performance improvements from development
1432 branch, as well as improved support for PowerPC platforms.
1435 *) Add lots of checks for memory allocation failure, error codes to indicate
1436 failure and freeing up memory if a failure occurs.
1437 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1439 *) Add new -passin argument to dgst.
1442 *) Perform some character comparisons of different types in X509_NAME_cmp:
1443 this is needed for some certificates that reencode DNs into UTF8Strings
1444 (in violation of RFC3280) and can't or wont issue name rollover
1448 *) Make an explicit check during certificate validation to see that
1449 the CA setting in each certificate on the chain is correct. As a
1450 side effect always do the following basic checks on extensions,
1451 not just when there's an associated purpose to the check:
1453 - if there is an unhandled critical extension (unless the user
1454 has chosen to ignore this fault)
1455 - if the path length has been exceeded (if one is set at all)
1456 - that certain extensions fit the associated purpose (if one has
1460 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1462 *) Avoid a race condition when CRLs are checked in a multi threaded
1463 environment. This would happen due to the reordering of the revoked
1464 entries during signature checking and serial number lookup. Now the
1465 encoding is cached and the serial number sort performed under a lock.
1466 Add new STACK function sk_is_sorted().
1469 *) Add Delta CRL to the extension code.
1472 *) Various fixes to s3_pkt.c so alerts are sent properly.
1473 [David Holmes <d.holmes@f5.com>]
1475 *) Reduce the chances of duplicate issuer name and serial numbers (in
1476 violation of RFC3280) using the OpenSSL certificate creation utilities.
1477 This is done by creating a random 64 bit value for the initial serial
1478 number when a serial number file is created or when a self signed
1479 certificate is created using 'openssl req -x509'. The initial serial
1480 number file is created using 'openssl x509 -next_serial' in CA.pl
1481 rather than being initialized to 1.
1484 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1486 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1487 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1488 [Joe Orton, Steve Henson]
1490 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1492 [Joe Orton, Steve Henson]
1494 *) Make it possible to have multiple active certificates with the same
1495 subject in the CA index file. This is done only if the keyword
1496 'unique_subject' is set to 'no' in the main CA section (default
1497 if 'CA_default') of the configuration file. The value is saved
1498 with the database itself in a separate index attribute file,
1499 named like the index file with '.attr' appended to the name.
1502 *) X509 verify fixes. Disable broken certificate workarounds when
1503 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1504 keyUsage extension present. Don't accept CRLs with unhandled critical
1505 extensions: since verify currently doesn't process CRL extensions this
1506 rejects a CRL with *any* critical extensions. Add new verify error codes
1510 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1511 A clarification of RFC2560 will require the use of OCTET STRINGs and
1512 some implementations cannot handle the current raw format. Since OpenSSL
1513 copies and compares OCSP nonces as opaque blobs without any attempt at
1514 parsing them this should not create any compatibility issues.
1517 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1518 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1519 this HMAC (and other) operations are several times slower than OpenSSL
1523 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1524 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1526 *) Use the correct content when signing type "other".
1529 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1531 *) Fix various bugs revealed by running the NISCC test suite:
1533 Stop out of bounds reads in the ASN1 code when presented with
1534 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1536 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1538 If verify callback ignores invalid public key errors don't try to check
1539 certificate signature with the NULL public key.
1543 *) New -ignore_err option in ocsp application to stop the server
1544 exiting on the first error in a request.
1547 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1548 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1552 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1553 extra data after the compression methods not only for TLS 1.0
1554 but also for SSL 3.0 (as required by the specification).
1555 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1557 *) Change X509_certificate_type() to mark the key as exported/exportable
1558 when it's 512 *bits* long, not 512 bytes.
1561 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1562 blocks during encryption.
1565 *) Various fixes to base64 BIO and non blocking I/O. On write
1566 flushes were not handled properly if the BIO retried. On read
1567 data was not being buffered properly and had various logic bugs.
1568 This also affects blocking I/O when the data being decoded is a
1572 *) Various S/MIME bugfixes and compatibility changes:
1573 output correct application/pkcs7 MIME type if
1574 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1575 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1576 of files as .eml work). Correctly handle very long lines in MIME
1580 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1582 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1583 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1584 a protocol version number mismatch like a decryption error
1585 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1588 *) Turn on RSA blinding by default in the default implementation
1589 to avoid a timing attack. Applications that don't want it can call
1590 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1591 They would be ill-advised to do so in most cases.
1592 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1594 *) Change RSA blinding code so that it works when the PRNG is not
1595 seeded (in this case, the secret RSA exponent is abused as
1596 an unpredictable seed -- if it is not unpredictable, there
1597 is no point in blinding anyway). Make RSA blinding thread-safe
1598 by remembering the creator's thread ID in rsa->blinding and
1599 having all other threads use local one-time blinding factors
1600 (this requires more computation than sharing rsa->blinding, but
1601 avoids excessive locking; and if an RSA object is not shared
1602 between threads, blinding will still be very fast).
1605 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1606 ENGINE as defaults for all supported algorithms irrespective of
1607 the 'flags' parameter. 'flags' is now honoured, so applications
1608 should make sure they are passing it correctly.
1611 *) Target "mingw" now allows native Windows code to be generated in
1612 the Cygwin environment as well as with the MinGW compiler.
1615 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1617 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1618 via timing by performing a MAC computation even if incorrrect
1619 block cipher padding has been found. This is a countermeasure
1620 against active attacks where the attacker has to distinguish
1621 between bad padding and a MAC verification error. (CVE-2003-0078)
1623 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1624 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1625 Martin Vuagnoux (EPFL, Ilion)]
1627 *) Make the no-err option work as intended. The intention with no-err
1628 is not to have the whole error stack handling routines removed from
1629 libcrypto, it's only intended to remove all the function name and
1630 reason texts, thereby removing some of the footprint that may not
1631 be interesting if those errors aren't displayed anyway.
1633 NOTE: it's still possible for any application or module to have it's
1634 own set of error texts inserted. The routines are there, just not
1635 used by default when no-err is given.
1638 *) Add support for FreeBSD on IA64.
1639 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1641 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1642 Kerberos function mit_des_cbc_cksum(). Before this change,
1643 the value returned by DES_cbc_cksum() was like the one from
1644 mit_des_cbc_cksum(), except the bytes were swapped.
1645 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1647 *) Allow an application to disable the automatic SSL chain building.
1648 Before this a rather primitive chain build was always performed in
1649 ssl3_output_cert_chain(): an application had no way to send the
1650 correct chain if the automatic operation produced an incorrect result.
1652 Now the chain builder is disabled if either:
1654 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1656 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1658 The reasoning behind this is that an application would not want the
1659 auto chain building to take place if extra chain certificates are
1660 present and it might also want a means of sending no additional
1661 certificates (for example the chain has two certificates and the
1665 *) Add the possibility to build without the ENGINE framework.
1666 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1668 *) Under Win32 gmtime() can return NULL: check return value in
1669 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1672 *) DSA routines: under certain error conditions uninitialized BN objects
1673 could be freed. Solution: make sure initialization is performed early
1674 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1675 Nils Larsch <nla@trustcenter.de> via PR#459)
1678 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1679 checked on reconnect on the client side, therefore session resumption
1680 could still fail with a "ssl session id is different" error. This
1681 behaviour is masked when SSL_OP_ALL is used due to
1682 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1683 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1684 followup to PR #377.
1687 *) IA-32 assembler support enhancements: unified ELF targets, support
1688 for SCO/Caldera platforms, fix for Cygwin shared build.
1691 *) Add support for FreeBSD on sparc64. As a consequence, support for
1692 FreeBSD on non-x86 processors is separate from x86 processors on
1693 the config script, much like the NetBSD support.
1694 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1696 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1698 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1701 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1702 code (06) was taken as the first octet of the session ID and the last
1703 octet was ignored consequently. As a result SSLv2 client side session
1704 caching could not have worked due to the session ID mismatch between
1706 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1710 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1711 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1715 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1716 seems that in spite of existing for more than a year, many application
1717 author have done nothing to provide the necessary callbacks, which
1718 means that this particular engine will not work properly anywhere.
1719 This is a very unfortunate situation which forces us, in the name
1720 of usability, to give the hw_ncipher.c a static lock, which is part
1722 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1723 appear in 0.9.8 or later. We EXPECT application authors to have
1724 dealt properly with this when 0.9.8 is released (unless we actually
1725 make such changes in the libcrypto locking code that changes will
1726 have to be made anyway).
1729 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1730 octets have been read, EOF or an error occurs. Without this change
1731 some truncated ASN1 structures will not produce an error.
1734 *) Disable Heimdal support, since it hasn't been fully implemented.
1735 Still give the possibility to force the use of Heimdal, but with
1736 warnings and a request that patches get sent to openssl-dev.
1739 *) Add the VC-CE target, introduce the WINCE sysname, and add
1740 INSTALL.WCE and appropriate conditionals to make it build.
1741 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1743 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1744 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1745 edit numbers of the version.
1746 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1748 *) Introduce safe string copy and catenation functions
1749 (BUF_strlcpy() and BUF_strlcat()).
1750 [Ben Laurie (CHATS) and Richard Levitte]
1752 *) Avoid using fixed-size buffers for one-line DNs.
1753 [Ben Laurie (CHATS)]
1755 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1756 resizing buffers containing secrets, and use where appropriate.
1757 [Ben Laurie (CHATS)]
1759 *) Avoid using fixed size buffers for configuration file location.
1760 [Ben Laurie (CHATS)]
1762 *) Avoid filename truncation for various CA files.
1763 [Ben Laurie (CHATS)]
1765 *) Use sizeof in preference to magic numbers.
1766 [Ben Laurie (CHATS)]
1768 *) Avoid filename truncation in cert requests.
1769 [Ben Laurie (CHATS)]
1771 *) Add assertions to check for (supposedly impossible) buffer
1773 [Ben Laurie (CHATS)]
1775 *) Don't cache truncated DNS entries in the local cache (this could
1776 potentially lead to a spoofing attack).
1777 [Ben Laurie (CHATS)]
1779 *) Fix various buffers to be large enough for hex/decimal
1780 representations in a platform independent manner.
1781 [Ben Laurie (CHATS)]
1783 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1784 resizing buffers containing secrets, and use where appropriate.
1785 [Ben Laurie (CHATS)]
1787 *) Add BIO_indent() to avoid much slightly worrying code to do
1789 [Ben Laurie (CHATS)]
1791 *) Convert sprintf()/BIO_puts() to BIO_printf().
1792 [Ben Laurie (CHATS)]
1794 *) buffer_gets() could terminate with the buffer only half
1796 [Ben Laurie (CHATS)]
1798 *) Add assertions to prevent user-supplied crypto functions from
1799 overflowing internal buffers by having large block sizes, etc.
1800 [Ben Laurie (CHATS)]
1802 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1804 [Ben Laurie (CHATS)]
1806 *) Eliminate unused copy of key in RC4.
1807 [Ben Laurie (CHATS)]
1809 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1810 [Ben Laurie (CHATS)]
1812 *) Fix off-by-one error in EGD path.
1813 [Ben Laurie (CHATS)]
1815 *) If RANDFILE path is too long, ignore instead of truncating.
1816 [Ben Laurie (CHATS)]
1818 *) Eliminate unused and incorrectly sized X.509 structure
1820 [Ben Laurie (CHATS)]
1822 *) Eliminate unused and dangerous function knumber().
1823 [Ben Laurie (CHATS)]
1825 *) Eliminate unused and dangerous structure, KSSL_ERR.
1826 [Ben Laurie (CHATS)]
1828 *) Protect against overlong session ID context length in an encoded
1829 session object. Since these are local, this does not appear to be
1831 [Ben Laurie (CHATS)]
1833 *) Change from security patch (see 0.9.6e below) that did not affect
1834 the 0.9.6 release series:
1836 Remote buffer overflow in SSL3 protocol - an attacker could
1837 supply an oversized master key in Kerberos-enabled versions.
1839 [Ben Laurie (CHATS)]
1841 *) Change the SSL kerb5 codes to match RFC 2712.
1844 *) Make -nameopt work fully for req and add -reqopt switch.
1845 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1847 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1848 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1850 *) Make sure tests can be performed even if the corresponding algorithms
1851 have been removed entirely. This was also the last step to make
1852 OpenSSL compilable with DJGPP under all reasonable conditions.
1853 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1855 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1856 to allow version independent disabling of normally unselected ciphers,
1857 which may be activated as a side-effect of selecting a single cipher.
1859 (E.g., cipher list string "RSA" enables ciphersuites that are left
1860 out of "ALL" because they do not provide symmetric encryption.
1861 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1862 [Lutz Jaenicke, Bodo Moeller]
1864 *) Add appropriate support for separate platform-dependent build
1865 directories. The recommended way to make a platform-dependent
1866 build directory is the following (tested on Linux), maybe with
1869 # Place yourself outside of the OpenSSL source tree. In
1870 # this example, the environment variable OPENSSL_SOURCE
1871 # is assumed to contain the absolute OpenSSL source directory.
1872 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1873 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1874 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1875 mkdir -p `dirname $F`
1876 ln -s $OPENSSL_SOURCE/$F $F
1879 To be absolutely sure not to disturb the source tree, a "make clean"
1880 is a good thing. If it isn't successfull, don't worry about it,
1881 it probably means the source directory is very clean.
1884 *) Make sure any ENGINE control commands make local copies of string
1885 pointers passed to them whenever necessary. Otherwise it is possible
1886 the caller may have overwritten (or deallocated) the original string
1887 data when a later ENGINE operation tries to use the stored values.
1888 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1890 *) Improve diagnostics in file reading and command-line digests.
1891 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1893 *) Add AES modes CFB and OFB to the object database. Correct an
1894 error in AES-CFB decryption.
1897 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1898 allows existing EVP_CIPHER_CTX structures to be reused after
1899 calling EVP_*Final(). This behaviour is used by encryption
1900 BIOs and some applications. This has the side effect that
1901 applications must explicitly clean up cipher contexts with
1902 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1905 *) Check the values of dna and dnb in bn_mul_recursive before calling
1906 bn_mul_comba (a non zero value means the a or b arrays do not contain
1907 n2 elements) and fallback to bn_mul_normal if either is not zero.
1910 *) Fix escaping of non-ASCII characters when using the -subj option
1911 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1914 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1915 form for "surname", serialNumber has no short form.
1916 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1917 therefore remove "mail" short name for "internet 7".
1918 The OID for unique identifiers in X509 certificates is
1919 x500UniqueIdentifier, not uniqueIdentifier.
1920 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1923 *) Add an "init" command to the ENGINE config module and auto initialize
1924 ENGINEs. Without any "init" command the ENGINE will be initialized
1925 after all ctrl commands have been executed on it. If init=1 the
1926 ENGINE is initailized at that point (ctrls before that point are run
1927 on the uninitialized ENGINE and after on the initialized one). If
1928 init=0 then the ENGINE will not be iniatialized at all.
1931 *) Fix the 'app_verify_callback' interface so that the user-defined
1932 argument is actually passed to the callback: In the
1933 SSL_CTX_set_cert_verify_callback() prototype, the callback
1934 declaration has been changed from
1937 int (*cb)(X509_STORE_CTX *,void *);
1938 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1939 i=s->ctx->app_verify_callback(&ctx)
1940 has been changed into
1941 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1943 To update applications using SSL_CTX_set_cert_verify_callback(),
1944 a dummy argument can be added to their callback functions.
1945 [D. K. Smetters <smetters@parc.xerox.com>]
1947 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1948 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1950 *) Add and OPENSSL_LOAD_CONF define which will cause
1951 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1952 This allows older applications to transparently support certain
1953 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1954 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1955 load the config file and OPENSSL_add_all_algorithms_conf() which will
1956 always load it have also been added.
1959 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1960 Adjust NIDs and EVP layer.
1961 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1963 *) Config modules support in openssl utility.
1965 Most commands now load modules from the config file,
1966 though in a few (such as version) this isn't done
1967 because it couldn't be used for anything.
1969 In the case of ca and req the config file used is
1970 the same as the utility itself: that is the -config
1971 command line option can be used to specify an
1975 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1976 use "openssl_conf" if filename is NULL use default openssl config file.
1979 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1980 config section name. Add a new flag to tolerate a missing config file
1981 and move code to CONF_modules_load_file().
1984 *) Support for crypto accelerator cards from Accelerated Encryption
1985 Processing, www.aep.ie. (Use engine 'aep')
1986 The support was copied from 0.9.6c [engine] and adapted/corrected
1987 to work with the new engine framework.
1988 [AEP Inc. and Richard Levitte]
1990 *) Support for SureWare crypto accelerator cards from Baltimore
1991 Technologies. (Use engine 'sureware')
1992 The support was copied from 0.9.6c [engine] and adapted
1993 to work with the new engine framework.
1996 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1997 make the newer ENGINE framework commands for the CHIL engine work.
1998 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2000 *) Make it possible to produce shared libraries on ReliantUNIX.
2001 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2003 *) Add the configuration target debug-linux-ppro.
2004 Make 'openssl rsa' use the general key loading routines
2005 implemented in apps.c, and make those routines able to
2006 handle the key format FORMAT_NETSCAPE and the variant
2008 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2010 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2011 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2013 *) Add -keyform to rsautl, and document -engine.
2014 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2016 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2017 BIO_R_NO_SUCH_FILE error code rather than the generic
2018 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2021 *) Add new functions
2023 ERR_peek_last_error_line
2024 ERR_peek_last_error_line_data.
2025 These are similar to
2028 ERR_peek_error_line_data,
2029 but report on the latest error recorded rather than the first one
2030 still in the error queue.
2031 [Ben Laurie, Bodo Moeller]
2033 *) default_algorithms option in ENGINE config module. This allows things
2035 default_algorithms = ALL
2036 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2039 *) Prelminary ENGINE config module.
2042 *) New experimental application configuration code.
2045 *) Change the AES code to follow the same name structure as all other
2046 symmetric ciphers, and behave the same way. Move everything to
2047 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2048 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2050 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2051 [Ben Laurie and Theo de Raadt]
2053 *) Add option to output public keys in req command.
2054 [Massimiliano Pala madwolf@openca.org]
2056 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2057 (up to about 10% better than before for P-192 and P-224).
2060 *) New functions/macros
2062 SSL_CTX_set_msg_callback(ctx, cb)
2063 SSL_CTX_set_msg_callback_arg(ctx, arg)
2064 SSL_set_msg_callback(ssl, cb)
2065 SSL_set_msg_callback_arg(ssl, arg)
2067 to request calling a callback function
2069 void cb(int write_p, int version, int content_type,
2070 const void *buf, size_t len, SSL *ssl, void *arg)
2072 whenever a protocol message has been completely received
2073 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2074 protocol version according to which the SSL library interprets
2075 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2076 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2077 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2078 specification (change_cipher_spec(20), alert(21), handshake(22)).
2079 'buf' and 'len' point to the actual message, 'ssl' to the
2080 SSL object, and 'arg' is the application-defined value set by
2081 SSL[_CTX]_set_msg_callback_arg().
2083 'openssl s_client' and 'openssl s_server' have new '-msg' options
2084 to enable a callback that displays all protocol messages.
2087 *) Change the shared library support so shared libraries are built as
2088 soon as the corresponding static library is finished, and thereby get
2089 openssl and the test programs linked against the shared library.
2090 This still only happens when the keyword "shard" has been given to
2091 the configuration scripts.
2093 NOTE: shared library support is still an experimental thing, and
2094 backward binary compatibility is still not guaranteed.
2095 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2097 *) Add support for Subject Information Access extension.
2098 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2100 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2101 additional bytes when new memory had to be allocated, not just
2102 when reusing an existing buffer.
2105 *) New command line and configuration option 'utf8' for the req command.
2106 This allows field values to be specified as UTF8 strings.
2109 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2110 runs for the former and machine-readable output for the latter.
2113 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2114 of the e-mail address in the DN (i.e., it will go into a certificate
2115 extension only). The new configuration file option 'email_in_dn = no'
2116 has the same effect.
2117 [Massimiliano Pala madwolf@openca.org]
2119 *) Change all functions with names starting with des_ to be starting
2120 with DES_ instead. Add wrappers that are compatible with libdes,
2121 but are named _ossl_old_des_*. Finally, add macros that map the
2122 des_* symbols to the corresponding _ossl_old_des_* if libdes
2123 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2124 desired, the des_* symbols will be mapped to DES_*, with one
2127 Since we provide two compatibility mappings, the user needs to
2128 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2129 compatibility is desired. The default (i.e., when that macro
2130 isn't defined) is OpenSSL 0.9.6c compatibility.
2132 There are also macros that enable and disable the support of old
2133 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2134 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2135 are defined, the default will apply: to support the old des routines.
2137 In either case, one must include openssl/des.h to get the correct
2138 definitions. Do not try to just include openssl/des_old.h, that
2141 NOTE: This is a major break of an old API into a new one. Software
2142 authors are encouraged to switch to the DES_ style functions. Some
2143 time in the future, des_old.h and the libdes compatibility functions
2144 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2145 default), and then completely removed.
2148 *) Test for certificates which contain unsupported critical extensions.
2149 If such a certificate is found during a verify operation it is
2150 rejected by default: this behaviour can be overridden by either
2151 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2152 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2153 X509_supported_extension() has also been added which returns 1 if a
2154 particular extension is supported.
2157 *) Modify the behaviour of EVP cipher functions in similar way to digests
2158 to retain compatibility with existing code.
2161 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2162 compatibility with existing code. In particular the 'ctx' parameter does
2163 not have to be to be initialized before the call to EVP_DigestInit() and
2164 it is tidied up after a call to EVP_DigestFinal(). New function
2165 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2166 EVP_MD_CTX_copy() changed to not require the destination to be
2167 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2168 requires the destination to be valid.
2170 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2171 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2174 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2175 so that complete 'Handshake' protocol structures are kept in memory
2176 instead of overwriting 'msg_type' and 'length' with 'body' data.
2179 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2180 [Massimo Santin via Richard Levitte]
2182 *) Major restructuring to the underlying ENGINE code. This includes
2183 reduction of linker bloat, separation of pure "ENGINE" manipulation
2184 (initialisation, etc) from functionality dealing with implementations
2185 of specific crypto iterfaces. This change also introduces integrated
2186 support for symmetric ciphers and digest implementations - so ENGINEs
2187 can now accelerate these by providing EVP_CIPHER and EVP_MD
2188 implementations of their own. This is detailed in crypto/engine/README
2189 as it couldn't be adequately described here. However, there are a few
2190 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2191 were changed in the original introduction of ENGINE code have now
2192 reverted back - the hooking from this code to ENGINE is now a good
2193 deal more passive and at run-time, operations deal directly with
2194 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2195 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2196 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2197 they were not being used by the framework as there is no concept of a
2198 BIGNUM_METHOD and they could not be generalised to the new
2199 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2200 ENGINE_cpy() has been removed as it cannot be consistently defined in
2204 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2207 *) Change mkdef.pl to sort symbols that get the same entry number,
2208 and make sure the automatically generated functions ERR_load_*
2209 become part of libeay.num as well.
2212 *) New function SSL_renegotiate_pending(). This returns true once
2213 renegotiation has been requested (either SSL_renegotiate() call
2214 or HelloRequest/ClientHello receveived from the peer) and becomes
2215 false once a handshake has been completed.
2216 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2217 sends a HelloRequest, but does not ensure that a handshake takes
2218 place. SSL_renegotiate_pending() is useful for checking if the
2219 client has followed the request.)
2222 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2223 By default, clients may request session resumption even during
2224 renegotiation (if session ID contexts permit); with this option,
2225 session resumption is possible only in the first handshake.
2227 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2228 more bits available for options that should not be part of
2229 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2232 *) Add some demos for certificate and certificate request creation.
2235 *) Make maximum certificate chain size accepted from the peer application
2236 settable (SSL*_get/set_max_cert_list()), as proposed by
2237 "Douglas E. Engert" <deengert@anl.gov>.
2240 *) Add support for shared libraries for Unixware-7
2241 (Boyd Lynn Gerber <gerberb@zenez.com>).
2244 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2245 be done prior to destruction. Use this to unload error strings from
2246 ENGINEs that load their own error strings. NB: This adds two new API
2247 functions to "get" and "set" this destroy handler in an ENGINE.
2250 *) Alter all existing ENGINE implementations (except "openssl" and
2251 "openbsd") to dynamically instantiate their own error strings. This
2252 makes them more flexible to be built both as statically-linked ENGINEs
2253 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2254 Also, add stub code to each that makes building them as self-contained
2255 shared-libraries easier (see README.ENGINE).
2258 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2259 implementations into applications that are completely implemented in
2260 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2261 commands that can be used to configure what shared-library to load and
2262 to control aspects of the way it is handled. Also, made an update to
2263 the README.ENGINE file that brings its information up-to-date and
2264 provides some information and instructions on the "dynamic" ENGINE
2265 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2268 *) Make it possible to unload ranges of ERR strings with a new
2269 "ERR_unload_strings" function.
2272 *) Add a copy() function to EVP_MD.
2275 *) Make EVP_MD routines take a context pointer instead of just the
2276 md_data void pointer.
2279 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2280 that the digest can only process a single chunk of data
2281 (typically because it is provided by a piece of
2282 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2283 is only going to provide a single chunk of data, and hence the
2284 framework needn't accumulate the data for oneshot drivers.
2287 *) As with "ERR", make it possible to replace the underlying "ex_data"
2288 functions. This change also alters the storage and management of global
2289 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2290 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2291 index counters. The API functions that use this state have been changed
2292 to take a "class_index" rather than pointers to the class's local STACK
2293 and counter, and there is now an API function to dynamically create new
2294 classes. This centralisation allows us to (a) plug a lot of the
2295 thread-safety problems that existed, and (b) makes it possible to clean
2296 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2297 such data would previously have always leaked in application code and
2298 workarounds were in place to make the memory debugging turn a blind eye
2299 to it. Application code that doesn't use this new function will still
2300 leak as before, but their memory debugging output will announce it now
2301 rather than letting it slide.
2303 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2304 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2305 has a return value to indicate success or failure.
2308 *) Make it possible to replace the underlying "ERR" functions such that the
2309 global state (2 LHASH tables and 2 locks) is only used by the "default"
2310 implementation. This change also adds two functions to "get" and "set"
2311 the implementation prior to it being automatically set the first time
2312 any other ERR function takes place. Ie. an application can call "get",
2313 pass the return value to a module it has just loaded, and that module
2314 can call its own "set" function using that value. This means the
2315 module's "ERR" operations will use (and modify) the error state in the
2316 application and not in its own statically linked copy of OpenSSL code.
2319 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2320 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2321 the operation, and provides a more encapsulated way for external code
2322 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2323 to use these functions rather than manually incrementing the counts.
2325 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2328 *) Add EVP test program.
2331 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2334 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2335 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2336 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2337 These allow a CRL to be built without having to access X509_CRL fields
2338 directly. Modify 'ca' application to use new functions.
2341 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2342 bug workarounds. Rollback attack detection is a security feature.
2343 The problem will only arise on OpenSSL servers when TLSv1 is not
2344 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2345 Software authors not wanting to support TLSv1 will have special reasons
2346 for their choice and can explicitly enable this option.
2347 [Bodo Moeller, Lutz Jaenicke]
2349 *) Rationalise EVP so it can be extended: don't include a union of
2350 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2351 (similar to those existing for EVP_CIPHER_CTX).
2356 EVP_MD_CTX_init(&md); /* new function call */
2357 EVP_DigestInit(&md, EVP_sha1());
2358 EVP_DigestUpdate(&md, in, len);
2359 EVP_DigestFinal(&md, out, NULL);
2360 EVP_MD_CTX_cleanup(&md); /* new function call */
2364 *) Make DES key schedule conform to the usual scheme, as well as
2365 correcting its structure. This means that calls to DES functions
2366 now have to pass a pointer to a des_key_schedule instead of a
2367 plain des_key_schedule (which was actually always a pointer
2370 des_key_schedule ks;
2372 des_set_key_checked(..., &ks);
2373 des_ncbc_encrypt(..., &ks, ...);
2375 (Note that a later change renames 'des_...' into 'DES_...'.)
2378 *) Initial reduction of linker bloat: the use of some functions, such as
2379 PEM causes large amounts of unused functions to be linked in due to
2380 poor organisation. For example pem_all.c contains every PEM function
2381 which has a knock on effect of linking in large amounts of (unused)
2382 ASN1 code. Grouping together similar functions and splitting unrelated
2383 functions prevents this.
2386 *) Cleanup of EVP macros.
2389 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2390 correct _ecb suffix.
2393 *) Add initial OCSP responder support to ocsp application. The
2394 revocation information is handled using the text based index
2395 use by the ca application. The responder can either handle
2396 requests generated internally, supplied in files (for example
2397 via a CGI script) or using an internal minimal server.
2400 *) Add configuration choices to get zlib compression for TLS.
2403 *) Changes to Kerberos SSL for RFC 2712 compliance:
2404 1. Implemented real KerberosWrapper, instead of just using
2405 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2406 2. Implemented optional authenticator field of KerberosWrapper.
2408 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2409 and authenticator structs; see crypto/krb5/.
2411 Generalized Kerberos calls to support multiple Kerberos libraries.
2412 [Vern Staats <staatsvr@asc.hpc.mil>,
2413 Jeffrey Altman <jaltman@columbia.edu>
2414 via Richard Levitte]
2416 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2417 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2418 values for each of the key sizes rather than having just
2419 parameters (and 'speed' generating keys each time).
2422 *) Speed up EVP routines.
2425 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2426 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2427 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2428 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2430 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2431 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2432 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2435 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2437 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2440 *) Added the OS2-EMX target.
2441 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2443 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2444 to support NCONF routines in extension code. New function CONF_set_nconf()
2445 to allow functions which take an NCONF to also handle the old LHASH
2446 structure: this means that the old CONF compatible routines can be
2447 retained (in particular wrt extensions) without having to duplicate the
2448 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2451 *) Enhance the general user interface with mechanisms for inner control
2452 and with possibilities to have yes/no kind of prompts.
2455 *) Change all calls to low level digest routines in the library and
2456 applications to use EVP. Add missing calls to HMAC_cleanup() and
2457 don't assume HMAC_CTX can be copied using memcpy().
2458 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2460 *) Add the possibility to control engines through control names but with
2461 arbitrary arguments instead of just a string.
2462 Change the key loaders to take a UI_METHOD instead of a callback
2463 function pointer. NOTE: this breaks binary compatibility with earlier
2464 versions of OpenSSL [engine].
2465 Adapt the nCipher code for these new conditions and add a card insertion
2469 *) Enhance the general user interface with mechanisms to better support
2470 dialog box interfaces, application-defined prompts, the possibility
2471 to use defaults (for example default passwords from somewhere else)
2472 and interrupts/cancellations.
2475 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2476 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2479 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2480 tidy up some unnecessarily weird code in 'sk_new()').
2481 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2483 *) Change the key loading routines for ENGINEs to use the same kind
2484 callback (pem_password_cb) as all other routines that need this
2488 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2489 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2490 than this minimum value is recommended.
2493 *) New random seeder for OpenVMS, using the system process statistics
2494 that are easily reachable.
2497 *) Windows apparently can't transparently handle global
2498 variables defined in DLLs. Initialisations such as:
2500 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2502 wont compile. This is used by the any applications that need to
2503 declare their own ASN1 modules. This was fixed by adding the option
2504 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2505 needed for static libraries under Win32.
2508 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2509 setting of purpose and trust fields. New X509_STORE trust and
2510 purpose functions and tidy up setting in other SSL functions.
2513 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2514 structure. These are inherited by X509_STORE_CTX when it is
2515 initialised. This allows various defaults to be set in the
2516 X509_STORE structure (such as flags for CRL checking and custom
2517 purpose or trust settings) for functions which only use X509_STORE_CTX
2518 internally such as S/MIME.
2520 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2521 trust settings if they are not set in X509_STORE. This allows X509_STORE
2522 purposes and trust (in S/MIME for example) to override any set by default.
2524 Add command line options for CRL checking to smime, s_client and s_server
2528 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2529 are set then the CRL is looked up in the X509_STORE structure and
2530 its validity and signature checked, then if the certificate is found
2531 in the CRL the verify fails with a revoked error.
2533 Various new CRL related callbacks added to X509_STORE_CTX structure.
2535 Command line options added to 'verify' application to support this.
2537 This needs some additional work, such as being able to handle multiple
2538 CRLs with different times, extension based lookup (rather than just
2539 by subject name) and ultimately more complete V2 CRL extension
2543 *) Add a general user interface API (crypto/ui/). This is designed
2544 to replace things like des_read_password and friends (backward
2545 compatibility functions using this new API are provided).
2546 The purpose is to remove prompting functions from the DES code
2547 section as well as provide for prompting through dialog boxes in
2548 a window system and the like.
2551 *) Add "ex_data" support to ENGINE so implementations can add state at a
2552 per-structure level rather than having to store it globally.
2555 *) Make it possible for ENGINE structures to be copied when retrieved by
2556 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2557 This causes the "original" ENGINE structure to act like a template,
2558 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2559 operational state can be localised to each ENGINE structure, despite the
2560 fact they all share the same "methods". New ENGINE structures returned in
2561 this case have no functional references and the return value is the single
2562 structural reference. This matches the single structural reference returned
2563 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2567 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2568 needs to match any other type at all we need to manually clear the
2572 *) Changes to the "openssl engine" utility to include;
2573 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2574 about an ENGINE's available control commands.
2575 - executing control commands from command line arguments using the
2576 '-pre' and '-post' switches. '-post' is only used if '-t' is
2577 specified and the ENGINE is successfully initialised. The syntax for
2578 the individual commands are colon-separated, for example;
2579 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2582 *) New dynamic control command support for ENGINEs. ENGINEs can now
2583 declare their own commands (numbers), names (strings), descriptions,
2584 and input types for run-time discovery by calling applications. A
2585 subset of these commands are implicitly classed as "executable"
2586 depending on their input type, and only these can be invoked through
2587 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2588 can be based on user input, config files, etc). The distinction is
2589 that "executable" commands cannot return anything other than a boolean
2590 result and can only support numeric or string input, whereas some
2591 discoverable commands may only be for direct use through
2592 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2593 pointers, or other custom uses. The "executable" commands are to
2594 support parameterisations of ENGINE behaviour that can be
2595 unambiguously defined by ENGINEs and used consistently across any
2596 OpenSSL-based application. Commands have been added to all the
2597 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2598 control over shared-library paths without source code alterations.
2601 *) Changed all ENGINE implementations to dynamically allocate their
2602 ENGINEs rather than declaring them statically. Apart from this being
2603 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2604 this also allows the implementations to compile without using the
2605 internal engine_int.h header.
2608 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2609 'const' value. Any code that should be able to modify a RAND_METHOD
2610 should already have non-const pointers to it (ie. they should only
2611 modify their own ones).
2614 *) Made a variety of little tweaks to the ENGINE code.
2615 - "atalla" and "ubsec" string definitions were moved from header files
2616 to C code. "nuron" string definitions were placed in variables
2617 rather than hard-coded - allowing parameterisation of these values
2618 later on via ctrl() commands.
2619 - Removed unused "#if 0"'d code.
2620 - Fixed engine list iteration code so it uses ENGINE_free() to release
2621 structural references.
2622 - Constified the RAND_METHOD element of ENGINE structures.
2623 - Constified various get/set functions as appropriate and added
2624 missing functions (including a catch-all ENGINE_cpy that duplicates
2625 all ENGINE values onto a new ENGINE except reference counts/state).
2626 - Removed NULL parameter checks in get/set functions. Setting a method
2627 or function to NULL is a way of cancelling out a previously set
2628 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2629 and doesn't justify the extra error symbols and code.
2630 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2631 flags from engine_int.h to engine.h.
2632 - Changed prototypes for ENGINE handler functions (init(), finish(),
2633 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2636 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2637 to the algorithm using long division. The binary algorithm can be
2638 used only if the modulus is odd. On 32-bit systems, it is faster
2639 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2640 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2641 up to 450 bits. In 64-bit environments, the binary algorithm
2642 appears to be advantageous for much longer moduli; here we use it
2643 for moduli up to 2048 bits.
2646 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2647 could not support the combine flag in choice fields.
2650 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2651 extensions from a certificate request to the certificate.
2654 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2655 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2656 file: this allows the display of the certificate about to be
2657 signed to be customised, to allow certain fields to be included
2658 or excluded and extension details. The old system didn't display
2659 multicharacter strings properly, omitted fields not in the policy
2660 and couldn't display additional details such as extensions.
2663 *) Function EC_POINTs_mul for multiple scalar multiplication
2664 of an arbitrary number of elliptic curve points
2665 \sum scalars[i]*points[i],
2666 optionally including the generator defined for the EC_GROUP:
2667 scalar*generator + \sum scalars[i]*points[i].
2669 EC_POINT_mul is a simple wrapper function for the typical case
2670 that the point list has just one item (besides the optional
2674 *) First EC_METHODs for curves over GF(p):
2676 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2677 operations and provides various method functions that can also
2678 operate with faster implementations of modular arithmetic.
2680 EC_GFp_mont_method() reuses most functions that are part of
2681 EC_GFp_simple_method, but uses Montgomery arithmetic.
2683 [Bodo Moeller; point addition and point doubling
2684 implementation directly derived from source code provided by
2685 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2687 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2688 crypto/ec/ec_lib.c):
2690 Curves are EC_GROUP objects (with an optional group generator)
2691 based on EC_METHODs that are built into the library.
2693 Points are EC_POINT objects based on EC_GROUP objects.
2695 Most of the framework would be able to handle curves over arbitrary
2696 finite fields, but as there are no obvious types for fields other
2697 than GF(p), some functions are limited to that for now.
2700 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2701 that the file contains a complete HTTP response.
2704 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2705 change the def and num file printf format specifier from "%-40sXXX"
2706 to "%-39s XXX". The latter will always guarantee a space after the
2707 field while the former will cause them to run together if the field
2708 is 40 of more characters long.
2711 *) Constify the cipher and digest 'method' functions and structures
2712 and modify related functions to take constant EVP_MD and EVP_CIPHER
2716 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2717 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2720 *) Modify EVP_Digest*() routines so they now return values. Although the
2721 internal software routines can never fail additional hardware versions
2725 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2727 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2728 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2731 ERR_R_NESTED_ASN1_ERROR
2733 ERR_R_MISSING_ASN1_EOS
2734 were 4 .. 9, conflicting with
2735 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2737 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2738 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2740 Add new error code 'ERR_R_INTERNAL_ERROR'.
2743 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2747 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2748 sets the subject name for a new request or supersedes the
2749 subject name in a given request. Formats that can be parsed are
2750 'CN=Some Name, OU=myOU, C=IT'
2752 'CN=Some Name/OU=myOU/C=IT'.
2754 Add options '-batch' and '-verbose' to 'openssl req'.
2755 [Massimiliano Pala <madwolf@hackmasters.net>]
2757 *) Introduce the possibility to access global variables through
2758 functions on platform were that's the best way to handle exporting
2759 global variables in shared libraries. To enable this functionality,
2760 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2761 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2762 is normally done by Configure or something similar).
2764 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2765 in the source file (foo.c) like this:
2767 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2768 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2770 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2771 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2773 OPENSSL_DECLARE_GLOBAL(int,foo);
2774 #define foo OPENSSL_GLOBAL_REF(foo)
2775 OPENSSL_DECLARE_GLOBAL(double,bar);
2776 #define bar OPENSSL_GLOBAL_REF(bar)
2778 The #defines are very important, and therefore so is including the
2779 header file everywhere where the defined globals are used.
2781 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2782 of ASN.1 items, but that structure is a bit different.
2784 The largest change is in util/mkdef.pl which has been enhanced with
2785 better and easier to understand logic to choose which symbols should
2786 go into the Windows .def files as well as a number of fixes and code
2787 cleanup (among others, algorithm keywords are now sorted
2788 lexicographically to avoid constant rewrites).
2791 *) In BN_div() keep a copy of the sign of 'num' before writing the
2792 result to 'rm' because if rm==num the value will be overwritten
2793 and produce the wrong result if 'num' is negative: this caused
2794 problems with BN_mod() and BN_nnmod().
2797 *) Function OCSP_request_verify(). This checks the signature on an
2798 OCSP request and verifies the signer certificate. The signer
2799 certificate is just checked for a generic purpose and OCSP request
2803 *) Add OCSP_check_validity() function to check the validity of OCSP
2804 responses. OCSP responses are prepared in real time and may only
2805 be a few seconds old. Simply checking that the current time lies
2806 between thisUpdate and nextUpdate max reject otherwise valid responses
2807 caused by either OCSP responder or client clock inaccuracy. Instead
2808 we allow thisUpdate and nextUpdate to fall within a certain period of
2809 the current time. The age of the response can also optionally be
2810 checked. Two new options -validity_period and -status_age added to
2814 *) If signature or public key algorithm is unrecognized print out its
2815 OID rather that just UNKNOWN.
2818 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2819 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2820 ID to be generated from the issuer certificate alone which can then be
2821 passed to OCSP_id_issuer_cmp().
2824 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2825 ASN1 modules to export functions returning ASN1_ITEM pointers
2826 instead of the ASN1_ITEM structures themselves. This adds several
2827 new macros which allow the underlying ASN1 function/structure to
2828 be accessed transparently. As a result code should not use ASN1_ITEM
2829 references directly (such as &X509_it) but instead use the relevant
2830 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2831 use of the new ASN1 code on platforms where exporting structures
2832 is problematical (for example in shared libraries) but exporting
2833 functions returning pointers to structures is not.
2836 *) Add support for overriding the generation of SSL/TLS session IDs.
2837 These callbacks can be registered either in an SSL_CTX or per SSL.
2838 The purpose of this is to allow applications to control, if they wish,
2839 the arbitrary values chosen for use as session IDs, particularly as it
2840 can be useful for session caching in multiple-server environments. A
2841 command-line switch for testing this (and any client code that wishes
2842 to use such a feature) has been added to "s_server".
2843 [Geoff Thorpe, Lutz Jaenicke]
2845 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2846 of the form '#if defined(...) || defined(...) || ...' and
2847 '#if !defined(...) && !defined(...) && ...'. This also avoids
2848 the growing number of special cases it was previously handling.
2851 *) Make all configuration macros available for application by making
2852 sure they are available in opensslconf.h, by giving them names starting
2853 with "OPENSSL_" to avoid conflicts with other packages and by making
2854 sure e_os2.h will cover all platform-specific cases together with
2856 Additionally, it is now possible to define configuration/platform-
2857 specific names (called "system identities"). In the C code, these
2858 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2859 macro with the name beginning with "OPENSSL_SYS_", which is determined
2860 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2864 *) New option -set_serial to 'req' and 'x509' this allows the serial
2865 number to use to be specified on the command line. Previously self
2866 signed certificates were hard coded with serial number 0 and the
2867 CA options of 'x509' had to use a serial number in a file which was
2871 *) New options to 'ca' utility to support V2 CRL entry extensions.
2872 Currently CRL reason, invalidity date and hold instruction are
2873 supported. Add new CRL extensions to V3 code and some new objects.
2876 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2877 disable standard block padding (aka PKCS#5 padding) in the EVP
2878 API, which was previously mandatory. This means that the data is
2879 not padded in any way and so the total length much be a multiple
2880 of the block size, otherwise an error occurs.
2883 *) Initial (incomplete) OCSP SSL support.
2886 *) New function OCSP_parse_url(). This splits up a URL into its host,
2887 port and path components: primarily to parse OCSP URLs. New -url
2888 option to ocsp utility.
2891 *) New nonce behavior. The return value of OCSP_check_nonce() now
2892 reflects the various checks performed. Applications can decide
2893 whether to tolerate certain situations such as an absent nonce
2894 in a response when one was present in a request: the ocsp application
2895 just prints out a warning. New function OCSP_add1_basic_nonce()
2896 this is to allow responders to include a nonce in a response even if
2897 the request is nonce-less.
2900 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2901 skipped when using openssl x509 multiple times on a single input file,
2902 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2905 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2906 set string type: to handle setting ASN1_TIME structures. Fix ca
2907 utility to correctly initialize revocation date of CRLs.
2910 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2911 the clients preferred ciphersuites and rather use its own preferences.
2912 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2913 Internet Explorer by ensuring unchanged hash method during stepup.
2914 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2917 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2918 to aes and add a new 'exist' option to print out symbols that don't
2922 *) Additional options to ocsp utility to allow flags to be set and
2923 additional certificates supplied.
2926 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2927 OCSP client a number of certificate to only verify the response
2931 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2932 handle the new API. Currently only ECB, CBC modes supported. Add new
2935 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2936 Encryption Standard (AES) Ciphersuites for Transport Layer
2937 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2938 not enabled by default and were not part of the "ALL" ciphersuite
2939 alias because they were not yet official; they could be
2940 explicitly requested by specifying the "AESdraft" ciphersuite
2941 group alias. In the final release of OpenSSL 0.9.7, the group
2942 alias is called "AES" and is part of "ALL".)
2943 [Ben Laurie, Steve Henson, Bodo Moeller]
2945 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2946 request to response.
2949 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2950 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2951 extract information from a certificate request. OCSP_response_create()
2952 creates a response and optionally adds a basic response structure.
2953 OCSP_basic_add1_status() adds a complete single response to a basic
2954 response and returns the OCSP_SINGLERESP structure just added (to allow
2955 extensions to be included for example). OCSP_basic_add1_cert() adds a
2956 certificate to a basic response and OCSP_basic_sign() signs a basic
2957 response with various flags. New helper functions ASN1_TIME_check()
2958 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2959 (converts ASN1_TIME to GeneralizedTime).
2962 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2963 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2964 structure from a certificate. X509_pubkey_digest() digests the public_key
2965 contents: this is used in various key identifiers.
2968 *) Make sk_sort() tolerate a NULL argument.
2969 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2971 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2972 passed by the function are trusted implicitly. If any of them signed the
2973 response then it is assumed to be valid and is not verified.
2976 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2977 to data. This was previously part of the PKCS7 ASN1 code. This
2978 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2979 [Steve Henson, reported by Kenneth R. Robinette
2980 <support@securenetterm.com>]
2982 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2983 routines: without these tracing memory leaks is very painful.
2984 Fix leaks in PKCS12 and PKCS7 routines.
2987 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2988 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2989 effectively meant GeneralizedTime would never be used. Now it
2990 is initialised to -1 but X509_time_adj() now has to check the value
2991 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2992 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2993 [Steve Henson, reported by Kenneth R. Robinette
2994 <support@securenetterm.com>]
2996 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2997 result in a zero length in the ASN1_INTEGER structure which was
2998 not consistent with the structure when d2i_ASN1_INTEGER() was used
2999 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3000 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3001 where it did not print out a minus for negative ASN1_INTEGER.
3004 *) Add summary printout to ocsp utility. The various functions which
3005 convert status values to strings have been renamed to:
3006 OCSP_response_status_str(), OCSP_cert_status_str() and
3007 OCSP_crl_reason_str() and are no longer static. New options
3008 to verify nonce values and to disable verification. OCSP response
3009 printout format cleaned up.
3012 *) Add additional OCSP certificate checks. These are those specified
3013 in RFC2560. This consists of two separate checks: the CA of the
3014 certificate being checked must either be the OCSP signer certificate
3015 or the issuer of the OCSP signer certificate. In the latter case the
3016 OCSP signer certificate must contain the OCSP signing extended key
3017 usage. This check is performed by attempting to match the OCSP
3018 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3019 in the OCSP_CERTID structures of the response.
3022 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3023 and related routines. This uses the standard OpenSSL certificate
3024 verify routines to perform initial checks (just CA validity) and
3025 to obtain the certificate chain. Then additional checks will be
3026 performed on the chain. Currently the root CA is checked to see
3027 if it is explicitly trusted for OCSP signing. This is used to set
3028 a root CA as a global signing root: that is any certificate that
3029 chains to that CA is an acceptable OCSP signing certificate.
3032 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3033 extensions from a separate configuration file.
3034 As when reading extensions from the main configuration file,
3035 the '-extensions ...' option may be used for specifying the
3037 [Massimiliano Pala <madwolf@comune.modena.it>]
3039 *) New OCSP utility. Allows OCSP requests to be generated or
3040 read. The request can be sent to a responder and the output
3041 parsed, outputed or printed in text form. Not complete yet:
3042 still needs to check the OCSP response validity.
3045 *) New subcommands for 'openssl ca':
3046 'openssl ca -status <serial>' prints the status of the cert with
3047 the given serial number (according to the index file).
3048 'openssl ca -updatedb' updates the expiry status of certificates
3050 [Massimiliano Pala <madwolf@comune.modena.it>]
3052 *) New '-newreq-nodes' command option to CA.pl. This is like
3053 '-newreq', but calls 'openssl req' with the '-nodes' option
3054 so that the resulting key is not encrypted.
3055 [Damien Miller <djm@mindrot.org>]
3057 *) New configuration for the GNU Hurd.
3058 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3060 *) Initial code to implement OCSP basic response verify. This
3061 is currently incomplete. Currently just finds the signer's
3062 certificate and verifies the signature on the response.
3065 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3066 value of OPENSSLDIR. This is available via the new '-d' option
3067 to 'openssl version', and is also included in 'openssl version -a'.
3070 *) Allowing defining memory allocation callbacks that will be given
3071 file name and line number information in additional arguments
3072 (a const char* and an int). The basic functionality remains, as
3073 well as the original possibility to just replace malloc(),
3074 realloc() and free() by functions that do not know about these
3075 additional arguments. To register and find out the current
3076 settings for extended allocation functions, the following
3077 functions are provided:
3079 CRYPTO_set_mem_ex_functions
3080 CRYPTO_set_locked_mem_ex_functions
3081 CRYPTO_get_mem_ex_functions
3082 CRYPTO_get_locked_mem_ex_functions
3084 These work the same way as CRYPTO_set_mem_functions and friends.
3085 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3086 extended allocation function is enabled.
3087 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3088 a conventional allocation function is enabled.
3089 [Richard Levitte, Bodo Moeller]
3091 *) Finish off removing the remaining LHASH function pointer casts.
3092 There should no longer be any prototype-casting required when using
3093 the LHASH abstraction, and any casts that remain are "bugs". See
3094 the callback types and macros at the head of lhash.h for details
3095 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3098 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3099 If /dev/[u]random devices are not available or do not return enough
3100 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3102 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3103 /etc/entropy will be queried once each in this sequence, quering stops
3104 when enough entropy was collected without querying more sockets.
3107 *) Change the Unix RAND_poll() variant to be able to poll several
3108 random devices, as specified by DEVRANDOM, until a sufficient amount
3109 of data has been collected. We spend at most 10 ms on each file
3110 (select timeout) and read in non-blocking mode. DEVRANDOM now
3111 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3112 (previously it was just the string "/dev/urandom"), so on typical
3113 platforms the 10 ms delay will never occur.
3114 Also separate out the Unix variant to its own file, rand_unix.c.
3115 For VMS, there's a currently-empty rand_vms.c.
3118 *) Move OCSP client related routines to ocsp_cl.c. These
3119 provide utility functions which an application needing
3120 to issue a request to an OCSP responder and analyse the
3121 response will typically need: as opposed to those which an
3122 OCSP responder itself would need which will be added later.
3124 OCSP_request_sign() signs an OCSP request with an API similar
3125 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3126 response. OCSP_response_get1_basic() extracts basic response
3127 from response. OCSP_resp_find_status(): finds and extracts status
3128 information from an OCSP_CERTID structure (which will be created
3129 when the request structure is built). These are built from lower
3130 level functions which work on OCSP_SINGLERESP structures but
3131 wont normally be used unless the application wishes to examine
3132 extensions in the OCSP response for example.
3134 Replace nonce routines with a pair of functions.
3135 OCSP_request_add1_nonce() adds a nonce value and optionally
3136 generates a random value. OCSP_check_nonce() checks the
3137 validity of the nonce in an OCSP response.
3140 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3141 This doesn't copy the supplied OCSP_CERTID and avoids the
3142 need to free up the newly created id. Change return type
3143 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3144 This can then be used to add extensions to the request.
3145 Deleted OCSP_request_new(), since most of its functionality
3146 is now in OCSP_REQUEST_new() (and the case insensitive name
3147 clash) apart from the ability to set the request name which
3148 will be added elsewhere.
3151 *) Update OCSP API. Remove obsolete extensions argument from
3152 various functions. Extensions are now handled using the new
3153 OCSP extension code. New simple OCSP HTTP function which
3154 can be used to send requests and parse the response.
3157 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3158 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3159 uses the special reorder version of SET OF to sort the attributes
3160 and reorder them to match the encoded order. This resolves a long
3161 standing problem: a verify on a PKCS7 structure just after signing
3162 it used to fail because the attribute order did not match the
3163 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3164 it uses the received order. This is necessary to tolerate some broken
3165 software that does not order SET OF. This is handled by encoding
3166 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3167 to produce the required SET OF.
3170 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3171 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3172 files to get correct declarations of the ASN.1 item variables.
3175 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3176 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3177 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3178 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3179 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3180 ASN1_ITEM and no wrapper functions.
3183 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3184 replace the old function pointer based I/O routines. Change most of
3185 the *_d2i_bio() and *_d2i_fp() functions to use these.
3188 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3189 lines, recognice more "algorithms" that can be deselected, and make
3190 it complain about algorithm deselection that isn't recognised.
3193 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3194 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3195 to use new functions. Add NO_ASN1_OLD which can be set to remove
3196 some old style ASN1 functions: this can be used to determine if old
3197 code will still work when these eventually go away.
3200 *) New extension functions for OCSP structures, these follow the
3201 same conventions as certificates and CRLs.
3204 *) New function X509V3_add1_i2d(). This automatically encodes and
3205 adds an extension. Its behaviour can be customised with various
3206 flags to append, replace or delete. Various wrappers added for
3207 certifcates and CRLs.
3210 *) Fix to avoid calling the underlying ASN1 print routine when
3211 an extension cannot be parsed. Correct a typo in the
3212 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3215 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3216 entries for variables.
3219 *) Add functionality to apps/openssl.c for detecting locking
3220 problems: As the program is single-threaded, all we have
3221 to do is register a locking callback using an array for
3222 storing which locks are currently held by the program.
3225 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3226 SSL_get_ex_data_X509_STORE_idx(), which is used in
3227 ssl_verify_cert_chain() and thus can be called at any time
3228 during TLS/SSL handshakes so that thread-safety is essential.
3229 Unfortunately, the ex_data design is not at all suited
3230 for multi-threaded use, so it probably should be abolished.
3233 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3234 [Broadcom, tweaked and integrated by Geoff Thorpe]
3236 *) Move common extension printing code to new function
3237 X509V3_print_extensions(). Reorganise OCSP print routines and
3238 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3241 *) New function X509_signature_print() to remove duplication in some
3245 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3246 set (this was treated exactly the same as SET OF previously). This
3247 is used to reorder the STACK representing the structure to match the
3248 encoding. This will be used to get round a problem where a PKCS7
3249 structure which was signed could not be verified because the STACK
3250 order did not reflect the encoded order.
3253 *) Reimplement the OCSP ASN1 module using the new code.
3256 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3257 for its ASN1 operations. The old style function pointers still exist
3258 for now but they will eventually go away.
3261 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3262 completely replaces the old ASN1 functionality with a table driven
3263 encoder and decoder which interprets an ASN1_ITEM structure describing
3264 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3265 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3266 has also been converted to the new form.
3269 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3270 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3271 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3272 for negative moduli.
3275 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3276 of not touching the result's sign bit.
3279 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3283 *) Changed the LHASH code to use prototypes for callbacks, and created
3284 macros to declare and implement thin (optionally static) functions
3285 that provide type-safety and avoid function pointer casting for the
3286 type-specific callbacks.
3289 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3291 [Veers Staats <staatsvr@asc.hpc.mil>,
3292 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3294 *) Reformat the FAQ so the different questions and answers can be divided
3295 in sections depending on the subject.
3298 *) Have the zlib compression code load ZLIB.DLL dynamically under
3302 *) New function BN_mod_sqrt for computing square roots modulo a prime
3303 (using the probabilistic Tonelli-Shanks algorithm unless
3304 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3305 be handled deterministically).
3306 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3308 *) Make BN_mod_inverse faster by explicitly handling small quotients
3309 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3310 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3313 *) New function BN_kronecker.
3316 *) Fix BN_gcd so that it works on negative inputs; the result is
3317 positive unless both parameters are zero.
3318 Previously something reasonably close to an infinite loop was
3319 possible because numbers could be growing instead of shrinking
3320 in the implementation of Euclid's algorithm.
3323 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3324 sign of the number in question.
3326 Fix BN_is_word(a,w) to work correctly for w == 0.
3328 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3329 because its test if the absolute value of 'a' equals 'w'.
3330 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3331 it exists mostly for use in the implementations of BN_is_zero(),
3332 BN_is_one(), and BN_is_word().
3335 *) New function BN_swap.
3338 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3339 the exponentiation functions are more likely to produce reasonable
3340 results on negative inputs.
3343 *) Change BN_mod_mul so that the result is always non-negative.
3344 Previously, it could be negative if one of the factors was negative;
3345 I don't think anyone really wanted that behaviour.
3348 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3349 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3350 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3351 and add new functions:
3360 BN_mod_lshift1_quick
3364 These functions always generate non-negative results.
3366 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3367 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3369 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3370 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3371 be reduced modulo m.
3372 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3375 The following entry accidentily appeared in the CHANGES file
3376 distributed with OpenSSL 0.9.7. The modifications described in
3377 it do *not* apply to OpenSSL 0.9.7.
3379 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3380 was actually never needed) and in BN_mul(). The removal in BN_mul()
3381 required a small change in bn_mul_part_recursive() and the addition
3382 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3383 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3384 bn_sub_words() and bn_add_words() except they take arrays with
3389 *) In 'openssl passwd', verify passwords read from the terminal
3390 unless the '-salt' option is used (which usually means that
3391 verification would just waste user's time since the resulting
3392 hash is going to be compared with some given password hash)
3393 or the new '-noverify' option is used.
3395 This is an incompatible change, but it does not affect
3396 non-interactive use of 'openssl passwd' (passwords on the command
3397 line, '-stdin' option, '-in ...' option) and thus should not
3401 *) Remove all references to RSAref, since there's no more need for it.
3404 *) Make DSO load along a path given through an environment variable
3405 (SHLIB_PATH) with shl_load().
3408 *) Constify the ENGINE code as a result of BIGNUM constification.
3409 Also constify the RSA code and most things related to it. In a
3410 few places, most notable in the depth of the ASN.1 code, ugly
3411 casts back to non-const were required (to be solved at a later
3415 *) Make it so the openssl application has all engines loaded by default.
3418 *) Constify the BIGNUM routines a little more.
3421 *) Add the following functions:
3423 ENGINE_load_cswift()
3425 ENGINE_load_atalla()
3427 ENGINE_load_builtin_engines()
3429 That way, an application can itself choose if external engines that
3430 are built-in in OpenSSL shall ever be used or not. The benefit is
3431 that applications won't have to be linked with libdl or other dso
3432 libraries unless it's really needed.
3434 Changed 'openssl engine' to load all engines on demand.
3435 Changed the engine header files to avoid the duplication of some
3436 declarations (they differed!).
3439 *) 'openssl engine' can now list capabilities.
3442 *) Better error reporting in 'openssl engine'.
3445 *) Never call load_dh_param(NULL) in s_server.
3448 *) Add engine application. It can currently list engines by name and
3449 identity, and test if they are actually available.
3452 *) Improve RPM specification file by forcing symbolic linking and making
3453 sure the installed documentation is also owned by root.root.
3454 [Damien Miller <djm@mindrot.org>]
3456 *) Give the OpenSSL applications more possibilities to make use of
3457 keys (public as well as private) handled by engines.
3460 *) Add OCSP code that comes from CertCo.
3463 *) Add VMS support for the Rijndael code.
3466 *) Added untested support for Nuron crypto accelerator.
3469 *) Add support for external cryptographic devices. This code was
3470 previously distributed separately as the "engine" branch.
3471 [Geoff Thorpe, Richard Levitte]
3473 *) Rework the filename-translation in the DSO code. It is now possible to
3474 have far greater control over how a "name" is turned into a filename
3475 depending on the operating environment and any oddities about the
3476 different shared library filenames on each system.
3479 *) Support threads on FreeBSD-elf in Configure.
3482 *) Fix for SHA1 assembly problem with MASM: it produces
3483 warnings about corrupt line number information when assembling
3484 with debugging information. This is caused by the overlapping
3486 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3489 NCONF_get_number() has no error checking at all. As a replacement,
3490 NCONF_get_number_e() is defined (_e for "error checking") and is
3491 promoted strongly. The old NCONF_get_number is kept around for
3492 binary backward compatibility.
3493 Make it possible for methods to load from something other than a BIO,
3494 by providing a function pointer that is given a name instead of a BIO.
3495 For example, this could be used to load configuration data from an
3499 *) Fix for non blocking accept BIOs. Added new I/O special reason
3500 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3501 with non blocking I/O was not possible because no retry code was
3502 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3506 *) Added the beginnings of Rijndael support.
3509 *) Fix for bug in DirectoryString mask setting. Add support for
3510 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3511 to allow certificate printing to more controllable, additional
3512 'certopt' option to 'x509' to allow new printing options to be
3516 *) Clean old EAY MD5 hack from e_os.h.
3519 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3521 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3522 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3523 [Joe Orton, Steve Henson]
3525 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3527 *) Fix additional bug revealed by the NISCC test suite:
3529 Stop bug triggering large recursion when presented with
3530 certain ASN.1 tags (CVE-2003-0851)
3533 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3535 *) Fix various bugs revealed by running the NISCC test suite:
3537 Stop out of bounds reads in the ASN1 code when presented with
3538 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3540 If verify callback ignores invalid public key errors don't try to check
3541 certificate signature with the NULL public key.
3545 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3546 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3550 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3551 extra data after the compression methods not only for TLS 1.0
3552 but also for SSL 3.0 (as required by the specification).
3553 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3555 *) Change X509_certificate_type() to mark the key as exported/exportable
3556 when it's 512 *bits* long, not 512 bytes.
3559 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3561 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3562 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3563 a protocol version number mismatch like a decryption error
3564 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3567 *) Turn on RSA blinding by default in the default implementation
3568 to avoid a timing attack. Applications that don't want it can call
3569 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3570 They would be ill-advised to do so in most cases.
3571 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3573 *) Change RSA blinding code so that it works when the PRNG is not
3574 seeded (in this case, the secret RSA exponent is abused as
3575 an unpredictable seed -- if it is not unpredictable, there
3576 is no point in blinding anyway). Make RSA blinding thread-safe
3577 by remembering the creator's thread ID in rsa->blinding and
3578 having all other threads use local one-time blinding factors
3579 (this requires more computation than sharing rsa->blinding, but
3580 avoids excessive locking; and if an RSA object is not shared
3581 between threads, blinding will still be very fast).
3584 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3586 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3587 via timing by performing a MAC computation even if incorrrect
3588 block cipher padding has been found. This is a countermeasure
3589 against active attacks where the attacker has to distinguish
3590 between bad padding and a MAC verification error. (CVE-2003-0078)
3592 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3593 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3594 Martin Vuagnoux (EPFL, Ilion)]
3596 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3598 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3599 memory from it's contents. This is done with a counter that will
3600 place alternating values in each byte. This can be used to solve
3601 two issues: 1) the removal of calls to memset() by highly optimizing
3602 compilers, and 2) cleansing with other values than 0, since those can
3603 be read through on certain media, for example a swap space on disk.
3606 *) Bugfix: client side session caching did not work with external caching,
3607 because the session->cipher setting was not restored when reloading
3608 from the external cache. This problem was masked, when
3609 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3610 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3613 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3614 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3615 [Zeev Lieber <zeev-l@yahoo.com>]
3617 *) Undo an undocumented change introduced in 0.9.6e which caused
3618 repeated calls to OpenSSL_add_all_ciphers() and
3619 OpenSSL_add_all_digests() to be ignored, even after calling
3623 *) Change the default configuration reader to deal with last line not
3624 being properly terminated.
3627 *) Change X509_NAME_cmp() so it applies the special rules on handling
3628 DN values that are of type PrintableString, as well as RDNs of type
3629 emailAddress where the value has the type ia5String.
3630 [stefank@valicert.com via Richard Levitte]
3632 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3633 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3634 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3635 the bitwise-OR of the two for use by the majority of applications
3636 wanting this behaviour, and update the docs. The documented
3637 behaviour and actual behaviour were inconsistent and had been
3638 changing anyway, so this is more a bug-fix than a behavioural
3640 [Geoff Thorpe, diagnosed by Nadav Har'El]
3642 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3643 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3646 *) Fix initialization code race conditions in
3647 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3648 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3649 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3650 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3651 ssl2_get_cipher_by_char(),
3652 ssl3_get_cipher_by_char().
3653 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3655 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3656 the cached sessions are flushed, as the remove_cb() might use ex_data
3657 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3658 (see [openssl.org #212]).
3659 [Geoff Thorpe, Lutz Jaenicke]
3661 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3662 length, instead of the encoding length to d2i_ASN1_OBJECT.
3665 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3667 *) [In 0.9.6g-engine release:]
3668 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3669 [Lynn Gazis <lgazis@rainbow.com>]
3671 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3673 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3674 and get fix the header length calculation.
3675 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3676 Alon Kantor <alonk@checkpoint.com> (and others),
3679 *) Use proper error handling instead of 'assertions' in buffer
3680 overflow checks added in 0.9.6e. This prevents DoS (the
3681 assertions could call abort()).
3682 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3684 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3686 *) Add various sanity checks to asn1_get_length() to reject
3687 the ASN1 length bytes if they exceed sizeof(long), will appear
3688 negative or the content length exceeds the length of the
3690 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3692 *) Fix cipher selection routines: ciphers without encryption had no flags
3693 for the cipher strength set and where therefore not handled correctly
3694 by the selection routines (PR #130).
3697 *) Fix EVP_dsa_sha macro.
3701 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3702 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3703 that was added in OpenSSL 0.9.6d.
3705 As the countermeasure turned out to be incompatible with some
3706 broken SSL implementations, the new option is part of SSL_OP_ALL.
3707 SSL_OP_ALL is usually employed when compatibility with weird SSL
3708 implementations is desired (e.g. '-bugs' option to 's_client' and
3709 's_server'), so the new option is automatically set in many
3713 *) Changes in security patch:
3715 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3716 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3717 Air Force Materiel Command, USAF, under agreement number
3720 *) Add various sanity checks to asn1_get_length() to reject
3721 the ASN1 length bytes if they exceed sizeof(long), will appear
3722 negative or the content length exceeds the length of the
3723 supplied buffer. (CVE-2002-0659)
3724 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3726 *) Assertions for various potential buffer overflows, not known to
3728 [Ben Laurie (CHATS)]
3730 *) Various temporary buffers to hold ASCII versions of integers were
3731 too small for 64 bit platforms. (CVE-2002-0655)
3732 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3734 *) Remote buffer overflow in SSL3 protocol - an attacker could
3735 supply an oversized session ID to a client. (CVE-2002-0656)
3736 [Ben Laurie (CHATS)]
3738 *) Remote buffer overflow in SSL2 protocol - an attacker could
3739 supply an oversized client master key. (CVE-2002-0656)
3740 [Ben Laurie (CHATS)]
3742 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3744 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3745 encoded as NULL) with id-dsa-with-sha1.
3746 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3748 *) Check various X509_...() return values in apps/req.c.
3749 [Nils Larsch <nla@trustcenter.de>]
3751 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3752 an end-of-file condition would erronously be flagged, when the CRLF
3753 was just at the end of a processed block. The bug was discovered when
3754 processing data through a buffering memory BIO handing the data to a
3755 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3756 <ptsekov@syntrex.com> and Nedelcho Stanev.
3759 *) Implement a countermeasure against a vulnerability recently found
3760 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3761 before application data chunks to avoid the use of known IVs
3762 with data potentially chosen by the attacker.
3765 *) Fix length checks in ssl3_get_client_hello().
3768 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3769 to prevent ssl3_read_internal() from incorrectly assuming that
3770 ssl3_read_bytes() found application data while handshake
3771 processing was enabled when in fact s->s3->in_read_app_data was
3772 merely automatically cleared during the initial handshake.
3773 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3775 *) Fix object definitions for Private and Enterprise: they were not
3776 recognized in their shortname (=lowercase) representation. Extend
3777 obj_dat.pl to issue an error when using undefined keywords instead
3778 of silently ignoring the problem (Svenning Sorensen
3779 <sss@sss.dnsalias.net>).
3782 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3783 generators, i.e. generators other than 2 and 5. (Previously, the
3784 code did not properly initialise the 'add' and 'rem' values to
3785 BN_generate_prime().)
3787 In the new general case, we do not insist that 'generator' is
3788 actually a primitive root: This requirement is rather pointless;
3789 a generator of the order-q subgroup is just as good, if not
3793 *) Map new X509 verification errors to alerts. Discovered and submitted by
3794 Tom Wu <tom@arcot.com>.
3797 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3798 returning non-zero before the data has been completely received
3799 when using non-blocking I/O.
3800 [Bodo Moeller; problem pointed out by John Hughes]
3802 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3803 [Ben Laurie, Lutz Jaenicke]
3805 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3806 Yoram Zahavi <YoramZ@gilian.com>).
3809 *) Add information about CygWin 1.3 and on, and preserve proper
3810 configuration for the versions before that.
3811 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3813 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3814 check whether we deal with a copy of a session and do not delete from
3815 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3816 <izhar@checkpoint.com>.
3819 *) Do not store session data into the internal session cache, if it
3820 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3821 flag is set). Proposed by Aslam <aslam@funk.com>.
3824 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3828 *) [In 0.9.6d-engine release:]
3829 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3830 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3832 *) Add the configuration target linux-s390x.
3833 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3835 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3836 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3837 variable as an indication that a ClientHello message has been
3838 received. As the flag value will be lost between multiple
3839 invocations of ssl3_accept when using non-blocking I/O, the
3840 function may not be aware that a handshake has actually taken
3841 place, thus preventing a new session from being added to the
3844 To avoid this problem, we now set s->new_session to 2 instead of
3845 using a local variable.
3846 [Lutz Jaenicke, Bodo Moeller]
3848 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3849 if the SSL_R_LENGTH_MISMATCH error is detected.
3850 [Geoff Thorpe, Bodo Moeller]
3852 *) New 'shared_ldflag' column in Configure platform table.
3855 *) Fix EVP_CIPHER_mode macro.
3856 ["Dan S. Camper" <dan@bti.net>]
3858 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3859 type, we must throw them away by setting rr->length to 0.
3860 [D P Chang <dpc@qualys.com>]
3862 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3864 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3865 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3866 worked incorrectly for those cases where range = 10..._2 and
3867 3*range is two bits longer than range.)
3870 *) Only add signing time to PKCS7 structures if it is not already
3874 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3875 OBJ_ld_ce should be OBJ_id_ce.
3876 Also some ip-pda OIDs in crypto/objects/objects.txt were
3877 incorrect (cf. RFC 3039).
3878 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3880 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3881 returns early because it has nothing to do.
3882 [Andy Schneider <andy.schneider@bjss.co.uk>]
3884 *) [In 0.9.6c-engine release:]
3885 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3886 [Andy Schneider <andy.schneider@bjss.co.uk>]
3888 *) [In 0.9.6c-engine release:]
3889 Add support for Cryptographic Appliance's keyserver technology.
3890 (Use engine 'keyclient')
3891 [Cryptographic Appliances and Geoff Thorpe]
3893 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3894 is called via tools/c89.sh because arguments have to be
3895 rearranged (all '-L' options must appear before the first object
3897 [Richard Shapiro <rshapiro@abinitio.com>]
3899 *) [In 0.9.6c-engine release:]
3900 Add support for Broadcom crypto accelerator cards, backported
3902 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3904 *) [In 0.9.6c-engine release:]
3905 Add support for SureWare crypto accelerator cards from
3906 Baltimore Technologies. (Use engine 'sureware')
3907 [Baltimore Technologies and Mark Cox]
3909 *) [In 0.9.6c-engine release:]
3910 Add support for crypto accelerator cards from Accelerated
3911 Encryption Processing, www.aep.ie. (Use engine 'aep')
3912 [AEP Inc. and Mark Cox]
3914 *) Add a configuration entry for gcc on UnixWare.
3915 [Gary Benson <gbenson@redhat.com>]
3917 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3918 messages are stored in a single piece (fixed-length part and
3919 variable-length part combined) and fix various bugs found on the way.
3922 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3923 instead. BIO_gethostbyname() does not know what timeouts are
3924 appropriate, so entries would stay in cache even when they have
3926 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3928 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3929 faced with a pathologically small ClientHello fragment that does
3930 not contain client_version: Instead of aborting with an error,
3931 simply choose the highest available protocol version (i.e.,
3932 TLS 1.0 unless it is disabled). In practice, ClientHello
3933 messages are never sent like this, but this change gives us
3934 strictly correct behaviour at least for TLS.
3937 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3938 never resets s->method to s->ctx->method when called from within
3939 one of the SSL handshake functions.
3940 [Bodo Moeller; problem pointed out by Niko Baric]
3942 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3943 (sent using the client's version number) if client_version is
3944 smaller than the protocol version in use. Also change
3945 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3946 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3947 the client will at least see that alert.
3950 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3954 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3955 client receives HelloRequest while in a handshake.
3956 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3958 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3959 should end in 'break', not 'goto end' which circuments various
3960 cleanups done in state SSL_ST_OK. But session related stuff
3961 must be disabled for SSL_ST_OK in the case that we just sent a
3964 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3965 before just sending a HelloRequest.
3966 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3968 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3969 reveal whether illegal block cipher padding was found or a MAC
3970 verification error occured. (Neither SSLerr() codes nor alerts
3971 are directly visible to potential attackers, but the information
3972 may leak via logfiles.)
3974 Similar changes are not required for the SSL 2.0 implementation
3975 because the number of padding bytes is sent in clear for SSL 2.0,
3976 and the extra bytes are just ignored. However ssl/s2_pkt.c
3977 failed to verify that the purported number of padding bytes is in
3981 *) Add OpenUNIX-8 support including shared libraries
3982 (Boyd Lynn Gerber <gerberb@zenez.com>).
3985 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3986 'wristwatch attack' using huge encoding parameters (cf.
3987 James H. Manger's CRYPTO 2001 paper). Note that the
3988 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3989 encoding parameters and hence was not vulnerable.
3992 *) BN_sqr() bug fix.
3993 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3995 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3996 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3997 followed by modular reduction.
3998 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4000 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4001 equivalent based on BN_pseudo_rand() instead of BN_rand().
4004 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4005 This function was broken, as the check for a new client hello message
4006 to handle SGC did not allow these large messages.
4007 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4010 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4013 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4014 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4017 *) Rework the configuration and shared library support for Tru64 Unix.
4018 The configuration part makes use of modern compiler features and
4019 still retains old compiler behavior for those that run older versions
4020 of the OS. The shared library support part includes a variant that
4021 uses the RPATH feature, and is available through the special
4022 configuration target "alpha-cc-rpath", which will never be selected
4024 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4026 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4027 with the same message size as in ssl3_get_certificate_request().
4028 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4029 messages might inadvertently be reject as too long.
4030 [Petr Lampa <lampa@fee.vutbr.cz>]
4032 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4035 *) Modified SSL library such that the verify_callback that has been set
4036 specificly for an SSL object with SSL_set_verify() is actually being
4037 used. Before the change, a verify_callback set with this function was
4038 ignored and the verify_callback() set in the SSL_CTX at the time of
4039 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4040 to allow the necessary settings.
4043 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4044 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4045 done automatically (in contradiction to the requirements of the C
4046 standard). This made problems when used from OpenSSH.
4049 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4050 dh->length and always used
4052 BN_rand_range(priv_key, dh->p).
4054 BN_rand_range() is not necessary for Diffie-Hellman, and this
4055 specific range makes Diffie-Hellman unnecessarily inefficient if
4056 dh->length (recommended exponent length) is much smaller than the
4057 length of dh->p. We could use BN_rand_range() if the order of
4058 the subgroup was stored in the DH structure, but we only have
4063 BN_rand(priv_key, l, ...)
4065 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4071 RSA_eay_public_encrypt
4072 RSA_eay_private_decrypt
4073 RSA_eay_private_encrypt (signing)
4074 RSA_eay_public_decrypt (signature verification)
4076 (default implementations for RSA_public_encrypt,
4077 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4078 always reject numbers >= n.
4081 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4082 to synchronize access to 'locking_thread'. This is necessary on
4083 systems where access to 'locking_thread' (an 'unsigned long'
4084 variable) is not atomic.
4087 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4088 *before* setting the 'crypto_lock_rand' flag. The previous code had
4089 a race condition if 0 is a valid thread ID.
4090 [Travis Vitek <vitek@roguewave.com>]
4092 *) Add support for shared libraries under Irix.
4093 [Albert Chin-A-Young <china@thewrittenword.com>]
4095 *) Add configuration option to build on Linux on both big-endian and
4097 [Ralf Baechle <ralf@uni-koblenz.de>]
4099 *) Add the possibility to create shared libraries on HP-UX.
4102 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4104 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4105 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4106 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4107 PRNG state recovery was possible based on the output of
4108 one PRNG request appropriately sized to gain knowledge on
4109 'md' followed by enough consecutive 1-byte PRNG requests
4110 to traverse all of 'state'.
4112 1. When updating 'md_local' (the current thread's copy of 'md')
4113 during PRNG output generation, hash all of the previous
4114 'md_local' value, not just the half used for PRNG output.
4116 2. Make the number of bytes from 'state' included into the hash
4117 independent from the number of PRNG bytes requested.
4119 The first measure alone would be sufficient to avoid
4120 Markku-Juhani's attack. (Actually it had never occurred
4121 to me that the half of 'md_local' used for chaining was the
4122 half from which PRNG output bytes were taken -- I had always
4123 assumed that the secret half would be used.) The second
4124 measure makes sure that additional data from 'state' is never
4125 mixed into 'md_local' in small portions; this heuristically
4126 further strengthens the PRNG.
4129 *) Fix crypto/bn/asm/mips3.s.
4132 *) When only the key is given to "enc", the IV is undefined. Print out
4133 an error message in this case.
4136 *) Handle special case when X509_NAME is empty in X509 printing routines.
4139 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4140 positive and less than q.
4143 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4144 used: it isn't thread safe and the add_lock_callback should handle
4146 [Paul Rose <Paul.Rose@bridge.com>]
4148 *) Verify that incoming data obeys the block size in
4149 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4153 [Ulf Möller, Bodo Möller]
4155 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4156 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4157 when fixing the server behaviour for backwards-compatible 'client
4158 hello' messages. (Note that the attack is impractical against
4159 SSL 3.0 and TLS 1.0 anyway because length and version checking
4160 means that the probability of guessing a valid ciphertext is
4161 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4164 Before 0.9.5, the countermeasure (hide the error by generating a
4165 random 'decryption result') did not work properly because
4166 ERR_clear_error() was missing, meaning that SSL_get_error() would
4167 detect the supposedly ignored error.
4169 Both problems are now fixed.
4172 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4173 (previously it was 1024).
4176 *) Fix for compatibility mode trust settings: ignore trust settings
4177 unless some valid trust or reject settings are present.
4180 *) Fix for blowfish EVP: its a variable length cipher.
4183 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4184 parameters in DSA public key structures and return an error in the
4185 DSA routines if parameters are absent.
4188 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4189 in the current directory if neither $RANDFILE nor $HOME was set.
4190 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4191 caused some confusion to Windows users who haven't defined $HOME.
4192 Thus RAND_file_name() is changed again: e_os.h can define a
4193 DEFAULT_HOME, which will be used if $HOME is not set.
4194 For Windows, we use "C:"; on other platforms, we still require
4195 environment variables.
4197 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4198 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4199 having multiple threads call RAND_poll() concurrently.
4202 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4203 combination of a flag and a thread ID variable.
4204 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4205 flag), *other* threads can enter ssleay_add_bytes without obeying
4206 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4207 that they do not hold after the first thread unsets add_do_not_lock).
4210 *) Change bctest again: '-x' expressions are not available in all
4214 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4216 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4217 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4219 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4220 the default extension for executables, if any. Also, make the perl
4221 scripts that use symlink() to test if it really exists and use "cp"
4222 if it doesn't. All this made OpenSSL compilable and installable in
4226 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4227 If SEQUENCE is length is indefinite just set c->slen to the total
4228 amount of data available.
4229 [Steve Henson, reported by shige@FreeBSD.org]
4230 [This change does not apply to 0.9.7.]
4232 *) Change bctest to avoid here-documents inside command substitution
4233 (workaround for FreeBSD /bin/sh bug).
4234 For compatibility with Ultrix, avoid shell functions (introduced
4235 in the bctest version that searches along $PATH).
4238 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4239 with des_encrypt() defined on some operating systems, like Solaris
4243 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4244 On the Importance of Eliminating Errors in Cryptographic
4245 Computations, J. Cryptology 14 (2001) 2, 101-119,
4246 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4249 *) MIPS assembler BIGNUM division bug fix.
4252 *) Disabled incorrect Alpha assembler code.
4255 *) Fix PKCS#7 decode routines so they correctly update the length
4256 after reading an EOC for the EXPLICIT tag.
4258 [This change does not apply to 0.9.7.]
4260 *) Fix bug in PKCS#12 key generation routines. This was triggered
4261 if a 3DES key was generated with a 0 initial byte. Include
4262 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4263 (but broken) behaviour.
4266 *) Enhance bctest to search for a working bc along $PATH and print
4268 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4270 *) Fix memory leaks in err.c: free err_data string if necessary;
4271 don't write to the wrong index in ERR_set_error_data.
4274 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4278 *) Replace rdtsc with _emit statements for VC++ version 5.
4279 [Jeremy Cooper <jeremy@baymoo.org>]
4281 *) Make it possible to reuse SSLv2 sessions.
4284 *) In copy_email() check for >= 0 as a return value for
4285 X509_NAME_get_index_by_NID() since 0 is a valid index.
4286 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4288 *) Avoid coredump with unsupported or invalid public keys by checking if
4289 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4290 PKCS7_verify() fails with non detached data.
4293 *) Don't use getenv in library functions when run as setuid/setgid.
4294 New function OPENSSL_issetugid().
4297 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4298 due to incorrect handling of multi-threading:
4300 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4302 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4304 3. Count how many times MemCheck_off() has been called so that
4305 nested use can be treated correctly. This also avoids
4306 inband-signalling in the previous code (which relied on the
4307 assumption that thread ID 0 is impossible).
4310 *) Add "-rand" option also to s_client and s_server.
4313 *) Fix CPU detection on Irix 6.x.
4314 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4315 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4317 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4320 [This change does not apply to 0.9.7.]
4322 *) Use the cached encoding of an X509_NAME structure rather than
4323 copying it. This is apparently the reason for the libsafe "errors"
4324 but the code is actually correct.
4327 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4328 Bleichenbacher's DSA attack.
4329 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4330 to be set and top=0 forces the highest bit to be set; top=-1 is new
4331 and leaves the highest bit random.
4332 [Ulf Moeller, Bodo Moeller]
4334 *) In the NCONF_...-based implementations for CONF_... queries
4335 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4336 a temporary CONF structure with the data component set to NULL
4337 (which gives segmentation faults in lh_retrieve).
4338 Instead, use NULL for the CONF pointer in CONF_get_string and
4339 CONF_get_number (which may use environment variables) and directly
4340 return NULL from CONF_get_section.
4343 *) Fix potential buffer overrun for EBCDIC.
4346 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4347 keyUsage if basicConstraints absent for a CA.
4350 *) Make SMIME_write_PKCS7() write mail header values with a format that
4351 is more generally accepted (no spaces before the semicolon), since
4352 some programs can't parse those values properly otherwise. Also make
4353 sure BIO's that break lines after each write do not create invalid
4357 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4358 macros previously used would not encode an empty SEQUENCE OF
4359 and break the signature.
4361 [This change does not apply to 0.9.7.]
4363 *) Zero the premaster secret after deriving the master secret in
4367 *) Add some EVP_add_digest_alias registrations (as found in
4368 OpenSSL_add_all_digests()) to SSL_library_init()
4369 aka OpenSSL_add_ssl_algorithms(). This provides improved
4370 compatibility with peers using X.509 certificates
4371 with unconventional AlgorithmIdentifier OIDs.
4374 *) Fix for Irix with NO_ASM.
4375 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4377 *) ./config script fixes.
4378 [Ulf Moeller, Richard Levitte]
4380 *) Fix 'openssl passwd -1'.
4383 *) Change PKCS12_key_gen_asc() so it can cope with non null
4384 terminated strings whose length is passed in the passlen
4385 parameter, for example from PEM callbacks. This was done
4386 by adding an extra length parameter to asc2uni().
4387 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4389 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4390 call failed, free the DSA structure.
4393 *) Fix to uni2asc() to cope with zero length Unicode strings.
4394 These are present in some PKCS#12 files.
4397 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4398 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4399 when writing a 32767 byte record.
4400 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4402 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4403 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4405 (RSA objects have a reference count access to which is protected
4406 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4407 so they are meant to be shared between threads.)
4408 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4409 "Reddie, Steven" <Steven.Reddie@ca.com>]
4411 *) Fix a deadlock in CRYPTO_mem_leaks().
4414 *) Use better test patterns in bntest.
4417 *) rand_win.c fix for Borland C.
4420 *) BN_rshift bugfix for n == 0.
4423 *) Add a 'bctest' script that checks for some known 'bc' bugs
4424 so that 'make test' does not abort just because 'bc' is broken.
4427 *) Store verify_result within SSL_SESSION also for client side to
4428 avoid potential security hole. (Re-used sessions on the client side
4429 always resulted in verify_result==X509_V_OK, not using the original
4430 result of the server certificate verification.)
4433 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4434 SSL3_RT_APPLICATION_DATA, return 0.
4435 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4439 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4440 releases, have been re-implemented by renaming the previous
4441 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4442 and ssl3_read_internal, respectively, and adding 'peek' parameters
4443 to them. The new ssl[23]_{read,peek} functions are calls to
4444 ssl[23]_read_internal with the 'peek' flag set appropriately.
4445 A 'peek' parameter has also been added to ssl3_read_bytes, which
4446 does the actual work for ssl3_read_internal.
4449 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4450 the method-specific "init()" handler. Also clean up ex_data after
4451 calling the method-specific "finish()" handler. Previously, this was
4452 happening the other way round.
4455 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4456 The previous value, 12, was not always sufficient for BN_mod_exp().
4459 *) Make sure that shared libraries get the internal name engine with
4460 the full version number and not just 0. This should mark the
4461 shared libraries as not backward compatible. Of course, this should
4462 be changed again when we can guarantee backward binary compatibility.
4465 *) Fix typo in get_cert_by_subject() in by_dir.c
4466 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4468 *) Rework the system to generate shared libraries:
4470 - Make note of the expected extension for the shared libraries and
4471 if there is a need for symbolic links from for example libcrypto.so.0
4472 to libcrypto.so.0.9.7. There is extended info in Configure for
4475 - Make as few rebuilds of the shared libraries as possible.
4477 - Still avoid linking the OpenSSL programs with the shared libraries.
4479 - When installing, install the shared libraries separately from the
4483 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4485 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4486 and not in SSL_clear because the latter is also used by the
4487 accept/connect functions; previously, the settings made by
4488 SSL_set_read_ahead would be lost during the handshake.
4489 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4491 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4492 Previously, it would create entries for disableed algorithms no
4496 *) Added several new manual pages for SSL_* function.
4499 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4501 *) In ssl23_get_client_hello, generate an error message when faced
4502 with an initial SSL 3.0/TLS record that is too small to contain the
4503 first two bytes of the ClientHello message, i.e. client_version.
4504 (Note that this is a pathologic case that probably has never happened
4505 in real life.) The previous approach was to use the version number
4506 from the record header as a substitute; but our protocol choice
4507 should not depend on that one because it is not authenticated
4508 by the Finished messages.
4511 *) More robust randomness gathering functions for Windows.
4512 [Jeffrey Altman <jaltman@columbia.edu>]
4514 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4515 not set then we don't setup the error code for issuer check errors
4516 to avoid possibly overwriting other errors which the callback does
4517 handle. If an application does set the flag then we assume it knows
4518 what it is doing and can handle the new informational codes
4522 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4523 a general "ANY" type, as such it should be able to decode anything
4524 including tagged types. However it didn't check the class so it would
4525 wrongly interpret tagged types in the same way as their universal
4526 counterpart and unknown types were just rejected. Changed so that the
4527 tagged and unknown types are handled in the same way as a SEQUENCE:
4528 that is the encoding is stored intact. There is also a new type
4529 "V_ASN1_OTHER" which is used when the class is not universal, in this
4530 case we have no idea what the actual type is so we just lump them all
4534 *) On VMS, stdout may very well lead to a file that is written to
4535 in a record-oriented fashion. That means that every write() will
4536 write a separate record, which will be read separately by the
4537 programs trying to read from it. This can be very confusing.
4539 The solution is to put a BIO filter in the way that will buffer
4540 text until a linefeed is reached, and then write everything a
4541 line at a time, so every record written will be an actual line,
4542 not chunks of lines and not (usually doesn't happen, but I've
4543 seen it once) several lines in one record. BIO_f_linebuffer() is
4546 Currently, it's a VMS-only method, because that's where it has
4547 been tested well enough.
4550 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4551 it can return incorrect results.
4552 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4553 but it was in 0.9.6-beta[12].)
4556 *) Disable the check for content being present when verifying detached
4557 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4558 include zero length content when signing messages.
4561 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4562 BIO_ctrl (for BIO pairs).
4565 *) Add DSO method for VMS.
4568 *) Bug fix: Montgomery multiplication could produce results with the
4572 *) Add RPM specification openssl.spec and modify it to build three
4573 packages. The default package contains applications, application
4574 documentation and run-time libraries. The devel package contains
4575 include files, static libraries and function documentation. The
4576 doc package contains the contents of the doc directory. The original
4577 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4580 *) Add a large number of documentation files for many SSL routines.
4581 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4583 *) Add a configuration entry for Sony News 4.
4584 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4586 *) Don't set the two most significant bits to one when generating a
4587 random number < q in the DSA library.
4590 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4591 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4592 the underlying transport is blocking) if a handshake took place.
4593 (The default behaviour is needed by applications such as s_client
4594 and s_server that use select() to determine when to use SSL_read;
4595 but for applications that know in advance when to expect data, it
4596 just makes things more complicated.)
4599 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4603 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4604 work better on such systems.
4605 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4607 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4608 Update PKCS12_parse() so it copies the friendlyName and the
4609 keyid to the certificates aux info.
4612 *) Fix bug in PKCS7_verify() which caused an infinite loop
4613 if there was more than one signature.
4614 [Sven Uszpelkat <su@celocom.de>]
4616 *) Major change in util/mkdef.pl to include extra information
4617 about each symbol, as well as presentig variables as well
4618 as functions. This change means that there's n more need
4619 to rebuild the .num files when some algorithms are excluded.
4622 *) Allow the verify time to be set by an application,
4623 rather than always using the current time.
4626 *) Phase 2 verify code reorganisation. The certificate
4627 verify code now looks up an issuer certificate by a
4628 number of criteria: subject name, authority key id
4629 and key usage. It also verifies self signed certificates
4630 by the same criteria. The main comparison function is
4631 X509_check_issued() which performs these checks.
4633 Lot of changes were necessary in order to support this
4634 without completely rewriting the lookup code.
4636 Authority and subject key identifier are now cached.
4638 The LHASH 'certs' is X509_STORE has now been replaced
4639 by a STACK_OF(X509_OBJECT). This is mainly because an
4640 LHASH can't store or retrieve multiple objects with
4641 the same hash value.
4643 As a result various functions (which were all internal
4644 use only) have changed to handle the new X509_STORE
4645 structure. This will break anything that messed round
4646 with X509_STORE internally.
4648 The functions X509_STORE_add_cert() now checks for an
4649 exact match, rather than just subject name.
4651 The X509_STORE API doesn't directly support the retrieval
4652 of multiple certificates matching a given criteria, however
4653 this can be worked round by performing a lookup first
4654 (which will fill the cache with candidate certificates)
4655 and then examining the cache for matches. This is probably
4656 the best we can do without throwing out X509_LOOKUP
4657 entirely (maybe later...).
4659 The X509_VERIFY_CTX structure has been enhanced considerably.
4661 All certificate lookup operations now go via a get_issuer()
4662 callback. Although this currently uses an X509_STORE it
4663 can be replaced by custom lookups. This is a simple way
4664 to bypass the X509_STORE hackery necessary to make this
4665 work and makes it possible to use more efficient techniques
4666 in future. A very simple version which uses a simple
4667 STACK for its trusted certificate store is also provided
4668 using X509_STORE_CTX_trusted_stack().
4670 The verify_cb() and verify() callbacks now have equivalents
4671 in the X509_STORE_CTX structure.
4673 X509_STORE_CTX also has a 'flags' field which can be used
4674 to customise the verify behaviour.
4677 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4678 excludes S/MIME capabilities.
4681 *) When a certificate request is read in keep a copy of the
4682 original encoding of the signed data and use it when outputing
4683 again. Signatures then use the original encoding rather than
4684 a decoded, encoded version which may cause problems if the
4685 request is improperly encoded.
4688 *) For consistency with other BIO_puts implementations, call
4689 buffer_write(b, ...) directly in buffer_puts instead of calling
4692 In BIO_puts, increment b->num_write as in BIO_write.
4693 [Peter.Sylvester@EdelWeb.fr]
4695 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4696 BN_zero, we may not return a BIGNUM with an array consisting of
4700 *) Avoid calling abort() from within the library when problems are
4701 detected, except if preprocessor symbols have been defined
4702 (such as REF_CHECK, BN_DEBUG etc.).
4705 *) New openssl application 'rsautl'. This utility can be
4706 used for low level RSA operations. DER public key
4707 BIO/fp routines also added.
4710 *) New Configure entry and patches for compiling on QNX 4.
4711 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4713 *) A demo state-machine implementation was sponsored by
4714 Nuron (http://www.nuron.com/) and is now available in
4715 demos/state_machine.
4718 *) New options added to the 'dgst' utility for signature
4719 generation and verification.
4722 *) Unrecognized PKCS#7 content types are now handled via a
4723 catch all ASN1_TYPE structure. This allows unsupported
4724 types to be stored as a "blob" and an application can
4725 encode and decode it manually.
4728 *) Fix various signed/unsigned issues to make a_strex.c
4730 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4732 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4733 length if passed a buffer. ASN1_INTEGER_to_BN failed
4734 if passed a NULL BN and its argument was negative.
4735 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4737 *) Modification to PKCS#7 encoding routines to output definite
4738 length encoding. Since currently the whole structures are in
4739 memory there's not real point in using indefinite length
4740 constructed encoding. However if OpenSSL is compiled with
4741 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4744 *) Added BIO_vprintf() and BIO_vsnprintf().
4747 *) Added more prefixes to parse for in the the strings written
4748 through a logging bio, to cover all the levels that are available
4749 through syslog. The prefixes are now:
4751 PANIC, EMERG, EMR => LOG_EMERG
4752 ALERT, ALR => LOG_ALERT
4753 CRIT, CRI => LOG_CRIT
4754 ERROR, ERR => LOG_ERR
4755 WARNING, WARN, WAR => LOG_WARNING
4756 NOTICE, NOTE, NOT => LOG_NOTICE
4757 INFO, INF => LOG_INFO
4758 DEBUG, DBG => LOG_DEBUG
4760 and as before, if none of those prefixes are present at the
4761 beginning of the string, LOG_ERR is chosen.
4763 On Win32, the LOG_* levels are mapped according to this:
4765 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4766 LOG_WARNING => EVENTLOG_WARNING_TYPE
4767 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4771 *) Made it possible to reconfigure with just the configuration
4772 argument "reconf" or "reconfigure". The command line arguments
4773 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4774 and are retrieved from there when reconfiguring.
4778 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4780 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4783 *) The obj_dat.pl script was messing up the sorting of object
4784 names. The reason was that it compared the quoted version
4785 of strings as a result "OCSP" > "OCSP Signing" because
4786 " > SPACE. Changed script to store unquoted versions of
4787 names and add quotes on output. It was also omitting some
4788 names from the lookup table if they were given a default
4789 value (that is if SN is missing it is given the same
4790 value as LN and vice versa), these are now added on the
4791 grounds that if an object has a name we should be able to
4792 look it up. Finally added warning output when duplicate
4793 short or long names are found.
4796 *) Changes needed for Tandem NSK.
4797 [Scott Uroff <scott@xypro.com>]
4799 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4800 RSA_padding_check_SSLv23(), special padding was never detected
4801 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4802 version rollback attacks was not effective.
4804 In s23_clnt.c, don't use special rollback-attack detection padding
4805 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4806 client; similarly, in s23_srvr.c, don't do the rollback check if
4807 SSL 2.0 is the only protocol enabled in the server.
4810 *) Make it possible to get hexdumps of unprintable data with 'openssl
4811 asn1parse'. By implication, the functions ASN1_parse_dump() and
4812 BIO_dump_indent() are added.
4815 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4816 these print out strings and name structures based on various
4817 flags including RFC2253 support and proper handling of
4818 multibyte characters. Added options to the 'x509' utility
4819 to allow the various flags to be set.
4822 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4823 Also change the functions X509_cmp_current_time() and
4824 X509_gmtime_adj() work with an ASN1_TIME structure,
4825 this will enable certificates using GeneralizedTime in validity
4826 dates to be checked.
4829 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4830 negative public key encodings) on by default,
4831 NO_NEG_PUBKEY_BUG can be set to disable it.
4834 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4835 content octets. An i2c_ASN1_OBJECT is unnecessary because
4836 the encoding can be trivially obtained from the structure.
4839 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4840 not read locks (CRYPTO_r_[un]lock).
4843 *) A first attempt at creating official support for shared
4844 libraries through configuration. I've kept it so the
4845 default is static libraries only, and the OpenSSL programs
4846 are always statically linked for now, but there are
4847 preparations for dynamic linking in place.
4848 This has been tested on Linux and Tru64.
4851 *) Randomness polling function for Win9x, as described in:
4852 Peter Gutmann, Software Generation of Practically Strong
4856 *) Fix so PRNG is seeded in req if using an already existing
4860 *) New options to smime application. -inform and -outform
4861 allow alternative formats for the S/MIME message including
4862 PEM and DER. The -content option allows the content to be
4863 specified separately. This should allow things like Netscape
4864 form signing output easier to verify.
4867 *) Fix the ASN1 encoding of tags using the 'long form'.
4870 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4871 STRING types. These convert content octets to and from the
4872 underlying type. The actual tag and length octets are
4873 already assumed to have been read in and checked. These
4874 are needed because all other string types have virtually
4875 identical handling apart from the tag. By having versions
4876 of the ASN1 functions that just operate on content octets
4877 IMPLICIT tagging can be handled properly. It also allows
4878 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4879 and ASN1_INTEGER are identical apart from the tag.
4882 *) Change the handling of OID objects as follows:
4884 - New object identifiers are inserted in objects.txt, following
4885 the syntax given in objects.README.
4886 - objects.pl is used to process obj_mac.num and create a new
4888 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4891 This is currently kind of a hack, and the perl code in objects.pl
4892 isn't very elegant, but it works as I intended. The simplest way
4893 to check that it worked correctly is to look in obj_dat.h and
4894 check the array nid_objs and make sure the objects haven't moved
4895 around (this is important!). Additions are OK, as well as
4896 consistent name changes.
4899 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4902 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4903 The given file adds to whatever has already been seeded into the
4904 random pool through the RANDFILE configuration file option or
4905 environment variable, or the default random state file.
4908 *) mkstack.pl now sorts each macro group into lexical order.
4909 Previously the output order depended on the order the files
4910 appeared in the directory, resulting in needless rewriting
4914 *) Patches to make OpenSSL compile under Win32 again. Mostly
4915 work arounds for the VC++ problem that it treats func() as
4916 func(void). Also stripped out the parts of mkdef.pl that
4917 added extra typesafe functions: these no longer exist.
4920 *) Reorganisation of the stack code. The macros are now all
4921 collected in safestack.h . Each macro is defined in terms of
4922 a "stack macro" of the form SKM_<name>(type, a, b). The
4923 DEBUG_SAFESTACK is now handled in terms of function casts,
4924 this has the advantage of retaining type safety without the
4925 use of additional functions. If DEBUG_SAFESTACK is not defined
4926 then the non typesafe macros are used instead. Also modified the
4927 mkstack.pl script to handle the new form. Needs testing to see
4928 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4929 the default if no major problems. Similar behaviour for ASN1_SET_OF
4930 and PKCS12_STACK_OF.
4933 *) When some versions of IIS use the 'NET' form of private key the
4934 key derivation algorithm is different. Normally MD5(password) is
4935 used as a 128 bit RC4 key. In the modified case
4936 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4937 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4938 as the old Netscape_RSA functions except they have an additional
4939 'sgckey' parameter which uses the modified algorithm. Also added
4940 an -sgckey command line option to the rsa utility. Thanks to
4941 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4942 algorithm to openssl-dev.
4945 *) The evp_local.h macros were using 'c.##kname' which resulted in
4946 invalid expansion on some systems (SCO 5.0.5 for example).
4947 Corrected to 'c.kname'.
4948 [Phillip Porch <root@theporch.com>]
4950 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4951 a STACK of email addresses from a certificate or request, these look
4952 in the subject name and the subject alternative name extensions and
4953 omit any duplicate addresses.
4956 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4957 This makes DSA verification about 2 % faster.
4960 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4961 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4962 plus overhead for 1024 bit moduli).
4963 This makes exponentiations about 0.5 % faster for 1024 bit
4964 exponents (as measured by "openssl speed rsa2048").
4967 *) Rename memory handling macros to avoid conflicts with other
4969 Malloc => OPENSSL_malloc
4970 Malloc_locked => OPENSSL_malloc_locked
4971 Realloc => OPENSSL_realloc
4972 Free => OPENSSL_free
4975 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4976 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4979 *) CygWin32 support.
4980 [John Jarvie <jjarvie@newsguy.com>]
4982 *) The type-safe stack code has been rejigged. It is now only compiled
4983 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4984 by default all type-specific stack functions are "#define"d back to
4985 standard stack functions. This results in more streamlined output
4986 but retains the type-safety checking possibilities of the original
4990 *) The STACK code has been cleaned up, and certain type declarations
4991 that didn't make a lot of sense have been brought in line. This has
4992 also involved a cleanup of sorts in safestack.h to more correctly
4993 map type-safe stack functions onto their plain stack counterparts.
4994 This work has also resulted in a variety of "const"ifications of
4995 lots of the code, especially "_cmp" operations which should normally
4996 be prototyped with "const" parameters anyway.
4999 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5000 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5001 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5002 where all of 'md' is used each time the PRNG is used, but 'state'
5003 is used only indexed by a cyclic counter. As entropy may not be
5004 well distributed from the beginning, 'md' is important as a
5005 chaining variable. However, the output function chains only half
5006 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5007 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5008 in all of 'state' being rewritten, with the new values depending
5009 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5012 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5013 the handshake is continued after ssl_verify_cert_chain();
5014 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5015 can lead to 'unexplainable' connection aborts later.
5016 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5018 *) Major EVP API cipher revision.
5019 Add hooks for extra EVP features. This allows various cipher
5020 parameters to be set in the EVP interface. Support added for variable
5021 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5022 setting of RC2 and RC5 parameters.
5024 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5027 Remove lots of duplicated code from the EVP library. For example *every*
5028 cipher init() function handles the 'iv' in the same way according to the
5029 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5030 for CFB and OFB modes they zero ctx->num.
5032 New functionality allows removal of S/MIME code RC2 hack.
5034 Most of the routines have the same form and so can be declared in terms
5037 By shifting this to the top level EVP_CipherInit() it can be removed from
5038 all individual ciphers. If the cipher wants to handle IVs or keys
5039 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5042 Change lots of functions like EVP_EncryptUpdate() to now return a
5043 value: although software versions of the algorithms cannot fail
5044 any installed hardware versions can.
5047 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5048 this option is set, tolerate broken clients that send the negotiated
5049 protocol version number instead of the requested protocol version
5053 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5054 i.e. non-zero for export ciphersuites, zero otherwise.
5055 Previous versions had this flag inverted, inconsistent with
5056 rsa_tmp_cb (..._TMP_RSA_CB).
5057 [Bodo Moeller; problem reported by Amit Chopra]
5059 *) Add missing DSA library text string. Work around for some IIS
5060 key files with invalid SEQUENCE encoding.
5063 *) Add a document (doc/standards.txt) that list all kinds of standards
5064 and so on that are implemented in OpenSSL.
5067 *) Enhance c_rehash script. Old version would mishandle certificates
5068 with the same subject name hash and wouldn't handle CRLs at all.
5069 Added -fingerprint option to crl utility, to support new c_rehash
5073 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5076 *) Fix for SSL server purpose checking. Server checking was
5077 rejecting certificates which had extended key usage present
5078 but no ssl client purpose.
5079 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5081 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5082 is a little unclear about how a blank password is handled.
5083 Since the password in encoded as a BMPString with terminating
5084 double NULL a zero length password would end up as just the
5085 double NULL. However no password at all is different and is
5086 handled differently in the PKCS#12 key generation code. NS
5087 treats a blank password as zero length. MSIE treats it as no
5088 password on export: but it will try both on import. We now do
5089 the same: PKCS12_parse() tries zero length and no password if
5090 the password is set to "" or NULL (NULL is now a valid password:
5091 it wasn't before) as does the pkcs12 application.
5094 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5095 perror when PEM_read_bio_X509_REQ fails, the error message must
5096 be obtained from the error queue.
5099 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5100 it in ERR_remove_state if appropriate, and change ERR_get_state
5101 accordingly to avoid race conditions (this is necessary because
5102 thread_hash is no longer constant once set).
5105 *) Bugfix for linux-elf makefile.one.
5108 *) RSA_get_default_method() will now cause a default
5109 RSA_METHOD to be chosen if one doesn't exist already.
5110 Previously this was only set during a call to RSA_new()
5111 or RSA_new_method(NULL) meaning it was possible for
5112 RSA_get_default_method() to return NULL.
5115 *) Added native name translation to the existing DSO code
5116 that will convert (if the flag to do so is set) filenames
5117 that are sufficiently small and have no path information
5118 into a canonical native form. Eg. "blah" converted to
5119 "libblah.so" or "blah.dll" etc.
5122 *) New function ERR_error_string_n(e, buf, len) which is like
5123 ERR_error_string(e, buf), but writes at most 'len' bytes
5124 including the 0 terminator. For ERR_error_string_n, 'buf'
5126 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5128 *) CONF library reworked to become more general. A new CONF
5129 configuration file reader "class" is implemented as well as a
5130 new functions (NCONF_*, for "New CONF") to handle it. The now
5131 old CONF_* functions are still there, but are reimplemented to
5132 work in terms of the new functions. Also, a set of functions
5133 to handle the internal storage of the configuration data is
5134 provided to make it easier to write new configuration file
5135 reader "classes" (I can definitely see something reading a
5136 configuration file in XML format, for example), called _CONF_*,
5137 or "the configuration storage API"...
5139 The new configuration file reading functions are:
5141 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5142 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5144 NCONF_default, NCONF_WIN32
5146 NCONF_dump_fp, NCONF_dump_bio
5148 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5149 NCONF_new creates a new CONF object. This works in the same way
5150 as other interfaces in OpenSSL, like the BIO interface.
5151 NCONF_dump_* dump the internal storage of the configuration file,
5152 which is useful for debugging. All other functions take the same
5153 arguments as the old CONF_* functions wth the exception of the
5154 first that must be a `CONF *' instead of a `LHASH *'.
5156 To make it easer to use the new classes with the old CONF_* functions,
5157 the function CONF_set_default_method is provided.
5160 *) Add '-tls1' option to 'openssl ciphers', which was already
5161 mentioned in the documentation but had not been implemented.
5162 (This option is not yet really useful because even the additional
5163 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5166 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5167 OpenSSL-based applications) load shared libraries and bind to
5168 them in a portable way.
5169 [Geoff Thorpe, with contributions from Richard Levitte]
5171 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5173 *) Make sure _lrotl and _lrotr are only used with MSVC.
5175 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5176 (the default implementation of RAND_status).
5178 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5179 to '-clrext' (= clear extensions), as intended and documented.
5180 [Bodo Moeller; inconsistency pointed out by Michael Attili
5183 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5184 was larger than the MD block size.
5185 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5187 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5188 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5189 using the passed key: if the passed key was a private key the result
5190 of X509_print(), for example, would be to print out all the private key
5194 *) des_quad_cksum() byte order bug fix.
5195 [Ulf Möller, using the problem description in krb4-0.9.7, where
5196 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5198 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5200 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5202 *) For easily testing in shell scripts whether some command
5203 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5204 returns with exit code 0 iff no command of the given name is available.
5205 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5206 the output goes to stdout and nothing is printed to stderr.
5207 Additional arguments are always ignored.
5209 Since for each cipher there is a command of the same name,
5210 the 'no-cipher' compilation switches can be tested this way.
5212 ('openssl no-XXX' is not able to detect pseudo-commands such
5213 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5216 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5219 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5220 is set; it will be thrown away anyway because each handshake creates
5222 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5223 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5224 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5225 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5228 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5229 'Q' and 'R' lose their special meanings (quit/renegotiate).
5230 This is part of what -quiet does; unlike -quiet, -ign_eof
5231 does not suppress any output.
5234 *) Add compatibility options to the purpose and trust code. The
5235 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5236 accepts a certificate or CA, this was the previous behaviour,
5237 with all the associated security issues.
5239 X509_TRUST_COMPAT is the old trust behaviour: only and
5240 automatically trust self signed roots in certificate store. A
5241 new trust setting X509_TRUST_DEFAULT is used to specify that
5242 a purpose has no associated trust setting and it should instead
5243 use the value in the default purpose.
5246 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5247 and fix a memory leak.
5250 *) In util/mkerr.pl (which implements 'make errors'), preserve
5251 reason strings from the previous version of the .c file, as
5252 the default to have only downcase letters (and digits) in
5253 automatically generated reasons codes is not always appropriate.
5256 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5257 using strerror. Previously, ERR_reason_error_string() returned
5258 library names as reason strings for SYSerr; but SYSerr is a special
5259 case where small numbers are errno values, not library numbers.
5262 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5263 converts DSA parameters into DH parameters. (When creating parameters,
5264 DSA_generate_parameters is used.)
5267 *) Include 'length' (recommended exponent length) in C code generated
5268 by 'openssl dhparam -C'.
5271 *) The second argument to set_label in perlasm was already being used
5272 so couldn't be used as a "file scope" flag. Moved to third argument
5276 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5277 instead of RAND_bytes for encryption IVs and salts.
5280 *) Include RAND_status() into RAND_METHOD instead of implementing
5281 it only for md_rand.c Otherwise replacing the PRNG by calling
5282 RAND_set_rand_method would be impossible.
5285 *) Don't let DSA_generate_key() enter an infinite loop if the random
5286 number generation fails.
5289 *) New 'rand' application for creating pseudo-random output.
5292 *) Added configuration support for Linux/IA64
5293 [Rolf Haberrecker <rolf@suse.de>]
5295 *) Assembler module support for Mingw32.
5298 *) Shared library support for HPUX (in shlib/).
5299 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5301 *) Shared library support for Solaris gcc.
5302 [Lutz Behnke <behnke@trustcenter.de>]
5304 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5306 *) PKCS7_encrypt() was adding text MIME headers twice because they
5307 were added manually and by SMIME_crlf_copy().
5310 *) In bntest.c don't call BN_rand with zero bits argument.
5311 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5313 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5314 case was implemented. This caused BN_div_recp() to fail occasionally.
5317 *) Add an optional second argument to the set_label() in the perl
5318 assembly language builder. If this argument exists and is set
5319 to 1 it signals that the assembler should use a symbol whose
5320 scope is the entire file, not just the current function. This
5321 is needed with MASM which uses the format label:: for this scope.
5322 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5324 *) Change the ASN1 types so they are typedefs by default. Before
5325 almost all types were #define'd to ASN1_STRING which was causing
5326 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5330 *) Change names of new functions to the new get1/get0 naming
5331 convention: After 'get1', the caller owns a reference count
5332 and has to call ..._free; 'get0' returns a pointer to some
5333 data structure without incrementing reference counters.
5334 (Some of the existing 'get' functions increment a reference
5335 counter, some don't.)
5336 Similarly, 'set1' and 'add1' functions increase reference
5337 counters or duplicate objects.
5340 *) Allow for the possibility of temp RSA key generation failure:
5341 the code used to assume it always worked and crashed on failure.
5344 *) Fix potential buffer overrun problem in BIO_printf().
5345 [Ulf Möller, using public domain code by Patrick Powell; problem
5346 pointed out by David Sacerdote <das33@cornell.edu>]
5348 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5349 RAND_egd() and RAND_status(). In the command line application,
5350 the EGD socket can be specified like a seed file using RANDFILE
5354 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5355 Some CAs (e.g. Verisign) distribute certificates in this form.
5358 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5359 list to exclude them. This means that no special compilation option
5360 is needed to use anonymous DH: it just needs to be included in the
5364 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5365 EVP_MD_type. The old functionality is available in a new macro called
5366 EVP_MD_md(). Change code that uses it and update docs.
5369 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5370 where the 'void *' argument is replaced by a function pointer argument.
5371 Previously 'void *' was abused to point to functions, which works on
5372 many platforms, but is not correct. As these functions are usually
5373 called by macros defined in OpenSSL header files, most source code
5374 should work without changes.
5377 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5378 sections with information on -D... compiler switches used for
5379 compiling the library so that applications can see them. To enable
5380 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5381 must be defined. E.g.,
5382 #define OPENSSL_ALGORITHM_DEFINES
5383 #include <openssl/opensslconf.h>
5384 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5385 [Richard Levitte, Ulf and Bodo Möller]
5387 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5391 *) Change the 'other' type in certificate aux info to a STACK_OF
5392 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5393 the required ASN1 format: arbitrary types determined by an OID.
5396 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5397 argument to 'req'. This is not because the function is newer or
5398 better than others it just uses the work 'NEW' in the certificate
5399 request header lines. Some software needs this.
5402 *) Reorganise password command line arguments: now passwords can be
5403 obtained from various sources. Delete the PEM_cb function and make
5404 it the default behaviour: i.e. if the callback is NULL and the
5405 usrdata argument is not NULL interpret it as a null terminated pass
5406 phrase. If usrdata and the callback are NULL then the pass phrase
5407 is prompted for as usual.
5410 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5411 the support is automatically enabled. The resulting binaries will
5412 autodetect the card and use it if present.
5413 [Ben Laurie and Compaq Inc.]
5415 *) Work around for Netscape hang bug. This sends certificate request
5416 and server done in one record. Since this is perfectly legal in the
5417 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5418 the bugs/SSLv3 entry for more info.
5421 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5424 *) Add -rand argument to smime and pkcs12 applications and read/write
5428 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5431 *) Add command line password options to the remaining applications.
5434 *) Bug fix for BN_div_recp() for numerators with an even number of
5438 *) More tests in bntest.c, and changed test_bn output.
5441 *) ./config recognizes MacOS X now.
5444 *) Bug fix for BN_div() when the first words of num and divsor are
5445 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5448 *) Add support for various broken PKCS#8 formats, and command line
5449 options to produce them.
5452 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5453 get temporary BIGNUMs from a BN_CTX.
5456 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5460 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5461 include a #define from the old name to the new. The original intent
5462 was that statically linked binaries could for example just call
5463 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5464 link with digests. This never worked becayse SSLeay_add_all_digests()
5465 and SSLeay_add_all_ciphers() were in the same source file so calling
5466 one would link with the other. They are now in separate source files.
5469 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5472 *) Use a less unusual form of the Miller-Rabin primality test (it used
5473 a binary algorithm for exponentiation integrated into the Miller-Rabin
5474 loop, our standard modexp algorithms are faster).
5477 *) Support for the EBCDIC character set completed.
5478 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5480 *) Source code cleanups: use const where appropriate, eliminate casts,
5481 use void * instead of char * in lhash.
5484 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5485 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5486 this the server could overwrite ephemeral keys that the client
5490 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5491 using 50 iterations of the Rabin-Miller test.
5493 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5494 iterations of the Rabin-Miller test as required by the appendix
5495 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5496 As BN_is_prime_fasttest includes trial division, DSA parameter
5497 generation becomes much faster.
5499 This implies a change for the callback functions in DSA_is_prime
5500 and DSA_generate_parameters: The callback function is called once
5501 for each positive witness in the Rabin-Miller test, not just
5502 occasionally in the inner loop; and the parameters to the
5503 callback function now provide an iteration count for the outer
5504 loop rather than for the current invocation of the inner loop.
5505 DSA_generate_parameters additionally can call the callback
5506 function with an 'iteration count' of -1, meaning that a
5507 candidate has passed the trial division test (when q is generated
5508 from an application-provided seed, trial division is skipped).
5511 *) New function BN_is_prime_fasttest that optionally does trial
5512 division before starting the Rabin-Miller test and has
5513 an additional BN_CTX * argument (whereas BN_is_prime always
5514 has to allocate at least one BN_CTX).
5515 'callback(1, -1, cb_arg)' is called when a number has passed the
5516 trial division stage.
5519 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5523 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5526 *) New function BN_pseudo_rand().
5529 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5530 bignum version of BN_from_montgomery() with the working code from
5531 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5535 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5536 made it impossible to use the same SSL_SESSION data structure in
5537 SSL2 clients in multiple threads.
5540 *) The return value of RAND_load_file() no longer counts bytes obtained
5541 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5542 to seed the PRNG (previously an explicit byte count was required).
5543 [Ulf Möller, Bodo Möller]
5545 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5546 used (char *) instead of (void *) and had casts all over the place.
5549 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5552 *) Retain source code compatibility for BN_prime_checks macro:
5553 BN_is_prime(..., BN_prime_checks, ...) now uses
5554 BN_prime_checks_for_size to determine the appropriate number of
5555 Rabin-Miller iterations.
5558 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5559 DH_CHECK_P_NOT_SAFE_PRIME.
5560 (Check if this is true? OpenPGP calls them "strong".)
5563 *) Merge the functionality of "dh" and "gendh" programs into a new program
5564 "dhparam". The old programs are retained for now but will handle DH keys
5565 (instead of parameters) in future.
5568 *) Make the ciphers, s_server and s_client programs check the return values
5569 when a new cipher list is set.
5572 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5573 ciphers. Before when the 56bit ciphers were enabled the sorting was
5576 The syntax for the cipher sorting has been extended to support sorting by
5577 cipher-strength (using the strength_bits hard coded in the tables).
5578 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5580 Fix a bug in the cipher-command parser: when supplying a cipher command
5581 string with an "undefined" symbol (neither command nor alphanumeric
5582 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5583 an error is flagged.
5585 Due to the strength-sorting extension, the code of the
5586 ssl_create_cipher_list() function was completely rearranged. I hope that
5587 the readability was also increased :-)
5588 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5590 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5591 for the first serial number and places 2 in the serial number file. This
5592 avoids problems when the root CA is created with serial number zero and
5593 the first user certificate has the same issuer name and serial number
5597 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5598 the new code. Add documentation for this stuff.
5601 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5602 X509_*() to X509at_*() on the grounds that they don't handle X509
5603 structures and behave in an analagous way to the X509v3 functions:
5604 they shouldn't be called directly but wrapper functions should be used
5607 So we also now have some wrapper functions that call the X509at functions
5608 when passed certificate requests. (TO DO: similar things can be done with
5609 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5610 things. Some of these need some d2i or i2d and print functionality
5611 because they handle more complex structures.)
5614 *) Add missing #ifndefs that caused missing symbols when building libssl
5615 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5616 NO_RSA in ssl/s2*.c.
5617 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5619 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5620 has a return value which indicates the quality of the random data
5621 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5622 error queue. New function RAND_pseudo_bytes() generates output that is
5623 guaranteed to be unique but not unpredictable. RAND_add is like
5624 RAND_seed, but takes an extra argument for an entropy estimate
5625 (RAND_seed always assumes full entropy).
5628 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5629 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5630 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5631 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5632 false-positive rate of at most 2^-80 for random input.
5635 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5638 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5639 in the 0.9.5 release), this returns the chain
5640 from an X509_CTX structure with a dup of the stack and all
5641 the X509 reference counts upped: so the stack will exist
5642 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5645 Also make SSL_SESSION_print() print out the verify return
5649 *) Add manpage for the pkcs12 command. Also change the default
5650 behaviour so MAC iteration counts are used unless the new
5651 -nomaciter option is used. This improves file security and
5652 only older versions of MSIE (4.0 for example) need it.
5655 *) Honor the no-xxx Configure options when creating .DEF files.
5658 *) Add PKCS#10 attributes to field table: challengePassword,
5659 unstructuredName and unstructuredAddress. These are taken from
5660 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5661 international characters are used.
5663 More changes to X509_ATTRIBUTE code: allow the setting of types
5664 based on strings. Remove the 'loc' parameter when adding
5665 attributes because these will be a SET OF encoding which is sorted
5669 *) Initial changes to the 'req' utility to allow request generation
5670 automation. This will allow an application to just generate a template
5671 file containing all the field values and have req construct the
5674 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5675 used all over the place including certificate requests and PKCS#7
5676 structures. They are currently handled manually where necessary with
5677 some primitive wrappers for PKCS#7. The new functions behave in a
5678 manner analogous to the X509 extension functions: they allow
5679 attributes to be looked up by NID and added.
5681 Later something similar to the X509V3 code would be desirable to
5682 automatically handle the encoding, decoding and printing of the
5683 more complex types. The string types like challengePassword can
5684 be handled by the string table functions.
5686 Also modified the multi byte string table handling. Now there is
5687 a 'global mask' which masks out certain types. The table itself
5688 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5689 is useful when for example there is only one permissible type
5690 (as in countryName) and using the mask might result in no valid
5694 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5695 SSL_get_peer_finished to allow applications to obtain the latest
5696 Finished messages sent to the peer or expected from the peer,
5697 respectively. (SSL_get_peer_finished is usually the Finished message
5698 actually received from the peer, otherwise the protocol will be aborted.)
5700 As the Finished message are message digests of the complete handshake
5701 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5702 be used for external authentication procedures when the authentication
5703 provided by SSL/TLS is not desired or is not enough.
5706 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5707 the host supports BWX extension and if Compaq C is present on the
5708 $PATH. Just exploiting of the BWX extension results in 20-30%
5709 performance kick for some algorithms, e.g. DES and RC4 to mention
5710 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5714 *) Add support for MS "fast SGC". This is arguably a violation of the
5715 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5716 weak crypto and after checking the certificate is SGC a second one
5717 with strong crypto. MS SGC stops the first handshake after receiving
5718 the server certificate message and sends a second client hello. Since
5719 a server will typically do all the time consuming operations before
5720 expecting any further messages from the client (server key exchange
5721 is the most expensive) there is little difference between the two.
5723 To get OpenSSL to support MS SGC we have to permit a second client
5724 hello message after we have sent server done. In addition we have to
5725 reset the MAC if we do get this second client hello.
5728 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5729 if a DER encoded private key is RSA or DSA traditional format. Changed
5730 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5731 format DER encoded private key. Newer code should use PKCS#8 format which
5732 has the key type encoded in the ASN1 structure. Added DER private key
5733 support to pkcs8 application.
5736 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5737 ciphersuites has been selected (as required by the SSL 3/TLS 1
5738 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5739 is set, we interpret this as a request to violate the specification
5740 (the worst that can happen is a handshake failure, and 'correct'
5741 behaviour would result in a handshake failure anyway).
5744 *) In SSL_CTX_add_session, take into account that there might be multiple
5745 SSL_SESSION structures with the same session ID (e.g. when two threads
5746 concurrently obtain them from an external cache).
5747 The internal cache can handle only one SSL_SESSION with a given ID,
5748 so if there's a conflict, we now throw out the old one to achieve
5752 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5753 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5754 some routines that use cipher OIDs: some ciphers do not have OIDs
5755 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5759 *) Simplify the trust setting structure and code. Now we just have
5760 two sequences of OIDs for trusted and rejected settings. These will
5761 typically have values the same as the extended key usage extension
5762 and any application specific purposes.
5764 The trust checking code now has a default behaviour: it will just
5765 check for an object with the same NID as the passed id. Functions can
5766 be provided to override either the default behaviour or the behaviour
5767 for a given id. SSL client, server and email already have functions
5768 in place for compatibility: they check the NID and also return "trusted"
5769 if the certificate is self signed.
5772 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5773 traditional format into an EVP_PKEY structure.
5776 *) Add a password callback function PEM_cb() which either prompts for
5777 a password if usr_data is NULL or otherwise assumes it is a null
5778 terminated password. Allow passwords to be passed on command line
5779 environment or config files in a few more utilities.
5782 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5783 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5784 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5785 Update documentation.
5788 *) Support for ASN1 "NULL" type. This could be handled before by using
5789 ASN1_TYPE but there wasn't any function that would try to read a NULL
5790 and produce an error if it couldn't. For compatibility we also have
5791 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5792 don't allocate anything because they don't need to.
5795 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5797 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5799 *) Rebuild of the memory allocation routines used by OpenSSL code and
5800 possibly others as well. The purpose is to make an interface that
5801 provide hooks so anyone can build a separate set of allocation and
5802 deallocation routines to be used by OpenSSL, for example memory
5803 pool implementations, or something else, which was previously hard
5804 since Malloc(), Realloc() and Free() were defined as macros having
5805 the values malloc, realloc and free, respectively (except for Win32
5806 compilations). The same is provided for memory debugging code.
5807 OpenSSL already comes with functionality to find memory leaks, but
5808 this gives people a chance to debug other memory problems.
5810 With these changes, a new set of functions and macros have appeared:
5812 CRYPTO_set_mem_debug_functions() [F]
5813 CRYPTO_get_mem_debug_functions() [F]
5814 CRYPTO_dbg_set_options() [F]
5815 CRYPTO_dbg_get_options() [F]
5816 CRYPTO_malloc_debug_init() [M]
5818 The memory debug functions are NULL by default, unless the library
5819 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5820 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5821 gives the standard debugging functions that come with OpenSSL) or
5822 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5823 provided by the library user) must be used. When the standard
5824 debugging functions are used, CRYPTO_dbg_set_options can be used to
5825 request additional information:
5826 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5827 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5829 Also, things like CRYPTO_set_mem_functions will always give the
5830 expected result (the new set of functions is used for allocation
5831 and deallocation) at all times, regardless of platform and compiler
5834 To finish it up, some functions that were never use in any other
5835 way than through macros have a new API and new semantic:
5838 CRYPTO_dbg_realloc()
5841 All macros of value have retained their old syntax.
5842 [Richard Levitte and Bodo Moeller]
5844 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5845 ordering of SMIMECapabilities wasn't in "strength order" and there
5846 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5850 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5851 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5852 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5854 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5855 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5856 functionality to handle multipart/signed properly) and a utility
5857 called 'smime' to call all this stuff. This is based on code I
5858 originally wrote for Celo who have kindly allowed it to be
5859 included in OpenSSL.
5862 *) Add variants des_set_key_checked and des_set_key_unchecked of
5863 des_set_key (aka des_key_sched). Global variable des_check_key
5864 decides which of these is called by des_set_key; this way
5865 des_check_key behaves as it always did, but applications and
5866 the library itself, which was buggy for des_check_key == 1,
5867 have a cleaner way to pick the version they need.
5870 *) New function PKCS12_newpass() which changes the password of a
5874 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5875 dynamic mix. In both cases the ids can be used as an index into the
5876 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5877 functions so they accept a list of the field values and the
5878 application doesn't need to directly manipulate the X509_TRUST
5882 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5886 *) Modify the way the V3 extension code looks up extensions. This now
5887 works in a similar way to the object code: we have some "standard"
5888 extensions in a static table which is searched with OBJ_bsearch()
5889 and the application can add dynamic ones if needed. The file
5890 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5891 updated whenever a new extension is added to the core code and kept
5892 in ext_nid order. There is a simple program 'tabtest.c' which checks
5893 this. New extensions are not added too often so this file can readily
5894 be maintained manually.
5896 There are two big advantages in doing things this way. The extensions
5897 can be looked up immediately and no longer need to be "added" using
5898 X509V3_add_standard_extensions(): this function now does nothing.
5899 [Side note: I get *lots* of email saying the extension code doesn't
5900 work because people forget to call this function]
5901 Also no dynamic allocation is done unless new extensions are added:
5902 so if we don't add custom extensions there is no need to call
5903 X509V3_EXT_cleanup().
5906 *) Modify enc utility's salting as follows: make salting the default. Add a
5907 magic header, so unsalted files fail gracefully instead of just decrypting
5908 to garbage. This is because not salting is a big security hole, so people
5909 should be discouraged from doing it.
5912 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5913 digest to be passed on the command line but it only used this
5914 parameter when signing a certificate. Modified so all relevant
5915 operations are affected by the digest parameter including the
5916 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5917 DSA key was used because it didn't fix the digest.
5920 *) Initial certificate chain verify code. Currently tests the untrusted
5921 certificates for consistency with the verify purpose (which is set
5922 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5924 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5925 this is because it will reject chains with invalid extensions whereas
5926 every previous version of OpenSSL and SSLeay made no checks at all.
5928 Trust code: checks the root CA for the relevant trust settings. Trust
5929 settings have an initial value consistent with the verify purpose: e.g.
5930 if the verify purpose is for SSL client use it expects the CA to be
5931 trusted for SSL client use. However the default value can be changed to
5932 permit custom trust settings: one example of this would be to only trust
5933 certificates from a specific "secure" set of CAs.
5935 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5936 which should be used for version portability: especially since the
5937 verify structure is likely to change more often now.
5939 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5940 to set them. If not set then assume SSL clients will verify SSL servers
5943 Two new options to the verify program: -untrusted allows a set of
5944 untrusted certificates to be passed in and -purpose which sets the
5945 intended purpose of the certificate. If a purpose is set then the
5946 new chain verify code is used to check extension consistency.
5949 *) Support for the authority information access extension.
5952 *) Modify RSA and DSA PEM read routines to transparently handle
5953 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5954 public keys in a format compatible with certificate
5955 SubjectPublicKeyInfo structures. Unfortunately there were already
5956 functions called *_PublicKey_* which used various odd formats so
5957 these are retained for compatibility: however the DSA variants were
5958 never in a public release so they have been deleted. Changed dsa/rsa
5959 utilities to handle the new format: note no releases ever handled public
5960 keys so we should be OK.
5962 The primary motivation for this change is to avoid the same fiasco
5963 that dogs private keys: there are several incompatible private key
5964 formats some of which are standard and some OpenSSL specific and
5965 require various evil hacks to allow partial transparent handling and
5966 even then it doesn't work with DER formats. Given the option anything
5967 other than PKCS#8 should be dumped: but the other formats have to
5968 stay in the name of compatibility.
5970 With public keys and the benefit of hindsight one standard format
5971 is used which works with EVP_PKEY, RSA or DSA structures: though
5972 it clearly returns an error if you try to read the wrong kind of key.
5974 Added a -pubkey option to the 'x509' utility to output the public key.
5975 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5976 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5977 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5978 that do the same as the EVP_PKEY_assign_*() except they up the
5979 reference count of the added key (they don't "swallow" the
5983 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5984 CRLs would fail if the file contained no certificates or no CRLs:
5985 added a new function to read in both types and return the number
5986 read: this means that if none are read it will be an error. The
5987 DER versions of the certificate and CRL reader would always fail
5988 because it isn't possible to mix certificates and CRLs in DER format
5989 without choking one or the other routine. Changed this to just read
5990 a certificate: this is the best we can do. Also modified the code
5991 in apps/verify.c to take notice of return codes: it was previously
5992 attempting to read in certificates from NULL pointers and ignoring
5993 any errors: this is one reason why the cert and CRL reader seemed
5994 to work. It doesn't check return codes from the default certificate
5995 routines: these may well fail if the certificates aren't installed.
5998 *) Code to support otherName option in GeneralName.
6001 *) First update to verify code. Change the verify utility
6002 so it warns if it is passed a self signed certificate:
6003 for consistency with the normal behaviour. X509_verify
6004 has been modified to it will now verify a self signed
6005 certificate if *exactly* the same certificate appears
6006 in the store: it was previously impossible to trust a
6007 single self signed certificate. This means that:
6008 openssl verify ss.pem
6009 now gives a warning about a self signed certificate but
6010 openssl verify -CAfile ss.pem ss.pem
6014 *) For servers, store verify_result in SSL_SESSION data structure
6015 (and add it to external session representation).
6016 This is needed when client certificate verifications fails,
6017 but an application-provided verification callback (set by
6018 SSL_CTX_set_cert_verify_callback) allows accepting the session
6019 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6020 but returns 1): When the session is reused, we have to set
6021 ssl->verify_result to the appropriate error code to avoid
6023 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6025 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6026 case in PKCS7_dataInit() where the signed PKCS7 structure
6027 didn't contain any existing data because it was being created.
6028 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6030 *) Add a salt to the key derivation routines in enc.c. This
6031 forms the first 8 bytes of the encrypted file. Also add a
6032 -S option to allow a salt to be input on the command line.
6035 *) New function X509_cmp(). Oddly enough there wasn't a function
6036 to compare two certificates. We do this by working out the SHA1
6037 hash and comparing that. X509_cmp() will be needed by the trust
6041 *) SSL_get1_session() is like SSL_get_session(), but increments
6042 the reference count in the SSL_SESSION returned.
6043 [Geoff Thorpe <geoff@eu.c2.net>]
6045 *) Fix for 'req': it was adding a null to request attributes.
6046 Also change the X509_LOOKUP and X509_INFO code to handle
6047 certificate auxiliary information.
6050 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6054 *) Add the possibility to add extra information to the memory leak
6055 detecting output, to form tracebacks, showing from where each
6056 allocation was originated: CRYPTO_push_info("constant string") adds
6057 the string plus current file name and line number to a per-thread
6058 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6059 is like calling CYRPTO_pop_info() until the stack is empty.
6060 Also updated memory leak detection code to be multi-thread-safe.
6063 *) Add options -text and -noout to pkcs7 utility and delete the
6064 encryption options which never did anything. Update docs.
6067 *) Add options to some of the utilities to allow the pass phrase
6068 to be included on either the command line (not recommended on
6069 OSes like Unix) or read from the environment. Update the
6070 manpages and fix a few bugs.
6073 *) Add a few manpages for some of the openssl commands.
6076 *) Fix the -revoke option in ca. It was freeing up memory twice,
6077 leaking and not finding already revoked certificates.
6080 *) Extensive changes to support certificate auxiliary information.
6081 This involves the use of X509_CERT_AUX structure and X509_AUX
6082 functions. An X509_AUX function such as PEM_read_X509_AUX()
6083 can still read in a certificate file in the usual way but it
6084 will also read in any additional "auxiliary information". By
6085 doing things this way a fair degree of compatibility can be
6086 retained: existing certificates can have this information added
6087 using the new 'x509' options.
6089 Current auxiliary information includes an "alias" and some trust
6090 settings. The trust settings will ultimately be used in enhanced
6091 certificate chain verification routines: currently a certificate
6092 can only be trusted if it is self signed and then it is trusted
6096 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6097 The problem was that one of the replacement routines had not been working
6098 since SSLeay releases. For now the offending routine has been replaced
6099 with non-optimised assembler. Even so, this now gives around 95%
6100 performance improvement for 1024 bit RSA signs.
6103 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6104 handling. Most clients have the effective key size in bits equal to
6105 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6106 A few however don't do this and instead use the size of the decrypted key
6107 to determine the RC2 key length and the AlgorithmIdentifier to determine
6108 the effective key length. In this case the effective key length can still
6109 be 40 bits but the key length can be 168 bits for example. This is fixed
6110 by manually forcing an RC2 key into the EVP_PKEY structure because the
6111 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6112 the key length and effective key length are equal.
6115 *) Add a bunch of functions that should simplify the creation of
6116 X509_NAME structures. Now you should be able to do:
6117 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6118 and have it automatically work out the correct field type and fill in
6119 the structures. The more adventurous can try:
6120 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6121 and it will (hopefully) work out the correct multibyte encoding.
6124 *) Change the 'req' utility to use the new field handling and multibyte
6125 copy routines. Before the DN field creation was handled in an ad hoc
6126 way in req, ca, and x509 which was rather broken and didn't support
6127 BMPStrings or UTF8Strings. Since some software doesn't implement
6128 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6129 using the dirstring_type option. See the new comment in the default
6130 openssl.cnf for more info.
6133 *) Make crypto/rand/md_rand.c more robust:
6134 - Assure unique random numbers after fork().
6135 - Make sure that concurrent threads access the global counter and
6136 md serializably so that we never lose entropy in them
6137 or use exactly the same state in multiple threads.
6138 Access to the large state is not always serializable because
6139 the additional locking could be a performance killer, and
6140 md should be large enough anyway.
6143 *) New file apps/app_rand.c with commonly needed functionality
6144 for handling the random seed file.
6146 Use the random seed file in some applications that previously did not:
6148 dsaparam -genkey (which also ignored its '-rand' option),
6151 x509 (when signing).
6152 Except on systems with /dev/urandom, it is crucial to have a random
6153 seed file at least for key creation, DSA signing, and for DH exchanges;
6154 for RSA signatures we could do without one.
6156 gendh and gendsa (unlike genrsa) used to read only the first byte
6157 of each file listed in the '-rand' option. The function as previously
6158 found in genrsa is now in app_rand.c and is used by all programs
6159 that support '-rand'.
6162 *) In RAND_write_file, use mode 0600 for creating files;
6163 don't just chmod when it may be too late.
6166 *) Report an error from X509_STORE_load_locations
6167 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6170 *) New function ASN1_mbstring_copy() this copies a string in either
6171 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6172 into an ASN1_STRING type. A mask of permissible types is passed
6173 and it chooses the "minimal" type to use or an error if not type
6177 *) Add function equivalents to the various macros in asn1.h. The old
6178 macros are retained with an M_ prefix. Code inside the library can
6179 use the M_ macros. External code (including the openssl utility)
6180 should *NOT* in order to be "shared library friendly".
6183 *) Add various functions that can check a certificate's extensions
6184 to see if it usable for various purposes such as SSL client,
6185 server or S/MIME and CAs of these types. This is currently
6186 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6187 verification. Also added a -purpose flag to x509 utility to
6188 print out all the purposes.
6191 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6195 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6196 for, obtain and decode and extension and obtain its critical flag.
6197 This allows all the necessary extension code to be handled in a
6198 single function call.
6201 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6202 platforms. See crypto/rc4/rc4_enc.c for further details.
6205 *) New -noout option to asn1parse. This causes no output to be produced
6206 its main use is when combined with -strparse and -out to extract data
6207 from a file (which may not be in ASN.1 format).
6210 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6211 when producing the local key id.
6212 [Richard Levitte <levitte@stacken.kth.se>]
6214 *) New option -dhparam in s_server. This allows a DH parameter file to be
6215 stated explicitly. If it is not stated then it tries the first server
6216 certificate file. The previous behaviour hard coded the filename
6220 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6221 a public key to be input or output. For example:
6222 openssl rsa -in key.pem -pubout -out pubkey.pem
6223 Also added necessary DSA public key functions to handle this.
6226 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6227 in the message. This was handled by allowing
6228 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6229 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6231 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6232 to the end of the strings whereas this didn't. This would cause problems
6233 if strings read with d2i_ASN1_bytes() were later modified.
6234 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6236 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6237 data and it contains EOF it will end up returning an error. This is
6238 caused by input 46 bytes long. The cause is due to the way base64
6239 BIOs find the start of base64 encoded data. They do this by trying a
6240 trial decode on each line until they find one that works. When they
6241 do a flag is set and it starts again knowing it can pass all the
6242 data directly through the decoder. Unfortunately it doesn't reset
6243 the context it uses. This means that if EOF is reached an attempt
6244 is made to pass two EOFs through the context and this causes the
6245 resulting error. This can also cause other problems as well. As is
6246 usual with these problems it takes *ages* to find and the fix is
6247 trivial: move one line.
6248 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6250 *) Ugly workaround to get s_client and s_server working under Windows. The
6251 old code wouldn't work because it needed to select() on sockets and the
6252 tty (for keypresses and to see if data could be written). Win32 only
6253 supports select() on sockets so we select() with a 1s timeout on the
6254 sockets and then see if any characters are waiting to be read, if none
6255 are present then we retry, we also assume we can always write data to
6256 the tty. This isn't nice because the code then blocks until we've
6257 received a complete line of data and it is effectively polling the
6258 keyboard at 1s intervals: however it's quite a bit better than not
6259 working at all :-) A dedicated Windows application might handle this
6260 with an event loop for example.
6263 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6264 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6265 will be called when RSA_sign() and RSA_verify() are used. This is useful
6266 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6267 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6268 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6269 This necessitated the support of an extra signature type NID_md5_sha1
6270 for SSL signatures and modifications to the SSL library to use it instead
6271 of calling RSA_public_decrypt() and RSA_private_encrypt().
6274 *) Add new -verify -CAfile and -CApath options to the crl program, these
6275 will lookup a CRL issuers certificate and verify the signature in a
6276 similar way to the verify program. Tidy up the crl program so it
6277 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6278 less strict. It will now permit CRL extensions even if it is not
6279 a V2 CRL: this will allow it to tolerate some broken CRLs.
6282 *) Initialize all non-automatic variables each time one of the openssl
6283 sub-programs is started (this is necessary as they may be started
6284 multiple times from the "OpenSSL>" prompt).
6285 [Lennart Bang, Bodo Moeller]
6287 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6288 removing all other RSA functionality (this is what NO_RSA does). This
6289 is so (for example) those in the US can disable those operations covered
6290 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6294 *) Non-copying interface to BIO pairs.
6295 (still largely untested)
6298 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6299 ASCII string. This was handled independently in various places before.
6302 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6303 UTF8 strings a character at a time.
6306 *) Use client_version from client hello to select the protocol
6307 (s23_srvr.c) and for RSA client key exchange verification
6308 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6311 *) Add various utility functions to handle SPKACs, these were previously
6312 handled by poking round in the structure internals. Added new function
6313 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6314 print, verify and generate SPKACs. Based on an original idea from
6315 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6318 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6321 *) Allow the config file extension section to be overwritten on the
6322 command line. Based on an original idea from Massimiliano Pala
6323 <madwolf@comune.modena.it>. The new option is called -extensions
6324 and can be applied to ca, req and x509. Also -reqexts to override
6325 the request extensions in req and -crlexts to override the crl extensions
6329 *) Add new feature to the SPKAC handling in ca. Now you can include
6330 the same field multiple times by preceding it by "XXXX." for example:
6333 this is the same syntax as used in the req config file.
6336 *) Allow certificate extensions to be added to certificate requests. These
6337 are specified in a 'req_extensions' option of the req section of the
6338 config file. They can be printed out with the -text option to req but
6339 are otherwise ignored at present.
6342 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6343 data read consists of only the final block it would not decrypted because
6344 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6345 A misplaced 'break' also meant the decrypted final block might not be
6346 copied until the next read.
6349 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6350 a few extra parameters to the DH structure: these will be useful if
6351 for example we want the value of 'q' or implement X9.42 DH.
6354 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6355 provides hooks that allow the default DSA functions or functions on a
6356 "per key" basis to be replaced. This allows hardware acceleration and
6357 hardware key storage to be handled without major modification to the
6358 library. Also added low level modexp hooks and CRYPTO_EX structure and
6359 associated functions.
6362 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6363 as "read only": it can't be written to and the buffer it points to will
6364 not be freed. Reading from a read only BIO is much more efficient than
6365 a normal memory BIO. This was added because there are several times when
6366 an area of memory needs to be read from a BIO. The previous method was
6367 to create a memory BIO and write the data to it, this results in two
6368 copies of the data and an O(n^2) reading algorithm. There is a new
6369 function BIO_new_mem_buf() which creates a read only memory BIO from
6370 an area of memory. Also modified the PKCS#7 routines to use read only
6374 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6375 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6376 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6377 but a retry condition occured while trying to read the rest.
6380 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6381 NID_pkcs7_encrypted by default: this was wrong since this should almost
6382 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6383 the encrypted data type: this is a more sensible place to put it and it
6384 allows the PKCS#12 code to be tidied up that duplicated this
6388 *) Changed obj_dat.pl script so it takes its input and output files on
6389 the command line. This should avoid shell escape redirection problems
6393 *) Initial support for certificate extension requests, these are included
6394 in things like Xenroll certificate requests. Included functions to allow
6395 extensions to be obtained and added.
6398 *) -crlf option to s_client and s_server for sending newlines as
6399 CRLF (as required by many protocols).
6402 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6404 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6405 [Ralf S. Engelschall]
6407 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6408 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6410 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6414 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6415 DH parameters/keys (q is lost during that conversion, but the resulting
6416 DH parameters contain its length).
6418 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6419 much faster than DH_generate_parameters (which creates parameters
6420 where p = 2*q + 1), and also the smaller q makes DH computations
6421 much more efficient (160-bit exponentiation instead of 1024-bit
6422 exponentiation); so this provides a convenient way to support DHE
6423 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6424 utter importance to use
6425 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6427 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6428 when such DH parameters are used, because otherwise small subgroup
6429 attacks may become possible!
6432 *) Avoid memory leak in i2d_DHparams.
6435 *) Allow the -k option to be used more than once in the enc program:
6436 this allows the same encrypted message to be read by multiple recipients.
6439 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6440 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6441 it will always use the numerical form of the OID, even if it has a short
6445 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6446 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6447 otherwise bn_mod_exp was called. In the case of hardware keys for example
6448 no private key components need be present and it might store extra data
6449 in the RSA structure, which cannot be accessed from bn_mod_exp.
6450 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6451 private key operations.
6454 *) Added support for SPARC Linux.
6457 *) pem_password_cb function type incompatibly changed from
6458 typedef int pem_password_cb(char *buf, int size, int rwflag);
6460 ....(char *buf, int size, int rwflag, void *userdata);
6461 so that applications can pass data to their callbacks:
6462 The PEM[_ASN1]_{read,write}... functions and macros now take an
6463 additional void * argument, which is just handed through whenever
6464 the password callback is called.
6465 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6467 New function SSL_CTX_set_default_passwd_cb_userdata.
6469 Compatibility note: As many C implementations push function arguments
6470 onto the stack in reverse order, the new library version is likely to
6471 interoperate with programs that have been compiled with the old
6472 pem_password_cb definition (PEM_whatever takes some data that
6473 happens to be on the stack as its last argument, and the callback
6474 just ignores this garbage); but there is no guarantee whatsoever that
6477 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6478 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6479 problems not only on Windows, but also on some Unix platforms.
6480 To avoid problematic command lines, these definitions are now in an
6481 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6482 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6485 *) MIPS III/IV assembler module is reimplemented.
6488 *) More DES library cleanups: remove references to srand/rand and
6489 delete an unused file.
6492 *) Add support for the the free Netwide assembler (NASM) under Win32,
6493 since not many people have MASM (ml) and it can be hard to obtain.
6494 This is currently experimental but it seems to work OK and pass all
6495 the tests. Check out INSTALL.W32 for info.
6498 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6499 without temporary keys kept an extra copy of the server key,
6500 and connections with temporary keys did not free everything in case
6504 *) New function RSA_check_key and new openssl rsa option -check
6505 for verifying the consistency of RSA keys.
6506 [Ulf Moeller, Bodo Moeller]
6508 *) Various changes to make Win32 compile work:
6509 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6510 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6511 comparison" warnings.
6512 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6515 *) Add a debugging option to PKCS#5 v2 key generation function: when
6516 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6517 derived keys are printed to stderr.
6520 *) Copy the flags in ASN1_STRING_dup().
6521 [Roman E. Pavlov <pre@mo.msk.ru>]
6523 *) The x509 application mishandled signing requests containing DSA
6524 keys when the signing key was also DSA and the parameters didn't match.
6526 It was supposed to omit the parameters when they matched the signing key:
6527 the verifying software was then supposed to automatically use the CA's
6528 parameters if they were absent from the end user certificate.
6530 Omitting parameters is no longer recommended. The test was also
6531 the wrong way round! This was probably due to unusual behaviour in
6532 EVP_cmp_parameters() which returns 1 if the parameters match.
6533 This meant that parameters were omitted when they *didn't* match and
6534 the certificate was useless. Certificates signed with 'ca' didn't have
6536 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6538 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6539 The interface is as follows:
6540 Applications can use
6541 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6542 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6543 "off" is now the default.
6544 The library internally uses
6545 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6546 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6547 to disable memory-checking temporarily.
6549 Some inconsistent states that previously were possible (and were
6550 even the default) are now avoided.
6552 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6553 with each memory chunk allocated; this is occasionally more helpful
6554 than just having a counter.
6556 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6558 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6562 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6563 which largely parallels "options", but is for changing API behaviour,
6564 whereas "options" are about protocol behaviour.
6565 Initial "mode" flags are:
6567 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6568 a single record has been written.
6569 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6570 retries use the same buffer location.
6571 (But all of the contents must be
6575 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6578 *) Fix problems with no-hmac etc.
6579 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6581 *) New functions RSA_get_default_method(), RSA_set_method() and
6582 RSA_get_method(). These allows replacement of RSA_METHODs without having
6583 to mess around with the internals of an RSA structure.
6586 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6587 Also really enable memory leak checks in openssl.c and in some
6589 [Chad C. Mulligan, Bodo Moeller]
6591 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6592 up the length of negative integers. This has now been simplified to just
6593 store the length when it is first determined and use it later, rather
6594 than trying to keep track of where data is copied and updating it to
6596 [Steve Henson, reported by Brien Wheeler
6597 <bwheeler@authentica-security.com>]
6599 *) Add a new function PKCS7_signatureVerify. This allows the verification
6600 of a PKCS#7 signature but with the signing certificate passed to the
6601 function itself. This contrasts with PKCS7_dataVerify which assumes the
6602 certificate is present in the PKCS#7 structure. This isn't always the
6603 case: certificates can be omitted from a PKCS#7 structure and be
6604 distributed by "out of band" means (such as a certificate database).
6607 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6608 function prototypes in pem.h, also change util/mkdef.pl to add the
6609 necessary function names.
6612 *) mk1mf.pl (used by Windows builds) did not properly read the
6613 options set by Configure in the top level Makefile, and Configure
6614 was not even able to write more than one option correctly.
6615 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6618 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6619 file to be loaded from a BIO or FILE pointer. The BIO version will
6620 for example allow memory BIOs to contain config info.
6623 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6624 Whoever hopes to achieve shared-library compatibility across versions
6625 must use this, not the compile-time macro.
6626 (Exercise 0.9.4: Which is the minimum library version required by
6628 Note: All this applies only to multi-threaded programs, others don't
6632 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6633 through a BIO pair triggered the default case, i.e.
6634 SSLerr(...,SSL_R_UNKNOWN_STATE).
6637 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6638 can use the SSL library even if none of the specific BIOs is
6642 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6643 for the encoded length.
6644 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6646 *) Add initial documentation of the X509V3 functions.
6649 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6650 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6651 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6652 secure PKCS#8 private key format with a high iteration count.
6655 *) Fix determination of Perl interpreter: A perl or perl5
6656 _directory_ in $PATH was also accepted as the interpreter.
6657 [Ralf S. Engelschall]
6659 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6660 wrong with it but it was very old and did things like calling
6661 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6665 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6666 to use the new extension code.
6669 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6670 with macros. This should make it easier to change their form, add extra
6671 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6675 *) Add to configuration table a new entry that can specify an alternative
6676 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6677 according to Mark Crispin <MRC@Panda.COM>.
6681 *) DES CBC did not update the IV. Weird.
6684 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6685 Changing the behaviour of the former might break existing programs --
6686 where IV updating is needed, des_ncbc_encrypt can be used.
6689 *) When bntest is run from "make test" it drives bc to check its
6690 calculations, as well as internally checking them. If an internal check
6691 fails, it needs to cause bc to give a non-zero result or make test carries
6692 on without noticing the failure. Fixed.
6695 *) DES library cleanups.
6698 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6699 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6700 ciphers. NOTE: although the key derivation function has been verified
6701 against some published test vectors it has not been extensively tested
6702 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6706 *) Instead of "mkdir -p", which is not fully portable, use new
6707 Perl script "util/mkdir-p.pl".
6710 *) Rewrite the way password based encryption (PBE) is handled. It used to
6711 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6712 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6713 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6714 the 'parameter' field of the AlgorithmIdentifier is passed to the
6715 underlying key generation function so it must do its own ASN1 parsing.
6716 This has also changed the EVP_PBE_CipherInit() function which now has a
6717 'parameter' argument instead of literal salt and iteration count values
6718 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6721 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6722 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6723 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6724 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6725 value was just used as a "magic string" and not used directly its
6726 value doesn't matter.
6729 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6733 *) "linux-sparc64" configuration (ultrapenguin).
6734 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6735 "linux-sparc" configuration.
6736 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6738 *) config now generates no-xxx options for missing ciphers.
6741 *) Support the EBCDIC character set (work in progress).
6742 File ebcdic.c not yet included because it has a different license.
6743 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6745 *) Support BS2000/OSD-POSIX.
6746 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6748 *) Make callbacks for key generation use void * instead of char *.
6751 *) Make S/MIME samples compile (not yet tested).
6754 *) Additional typesafe stacks.
6757 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6761 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6763 *) New configuration variant "sco5-gcc".
6765 *) Updated some demos.
6766 [Sean O Riordain, Wade Scholine]
6768 *) Add missing BIO_free at exit of pkcs12 application.
6771 *) Fix memory leak in conf.c.
6774 *) Updates for Win32 to assembler version of MD5.
6777 *) Set #! path to perl in apps/der_chop to where we found it
6778 instead of using a fixed path.
6781 *) SHA library changes for irix64-mips4-cc.
6784 *) Improvements for VMS support.
6788 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6790 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6791 This also avoids the problems with SC4.2 and unpatched SC5.
6792 [Andy Polyakov <appro@fy.chalmers.se>]
6794 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6795 These are required because of the typesafe stack would otherwise break
6796 existing code. If old code used a structure member which used to be STACK
6797 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6798 sk_num or sk_value it would produce an error because the num, data members
6799 are not present in STACK_OF. Now it just produces a warning. sk_set
6800 replaces the old method of assigning a value to sk_value
6801 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6802 that does this will no longer work (and should use sk_set instead) but
6803 this could be regarded as a "questionable" behaviour anyway.
6806 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6807 correctly handle encrypted S/MIME data.
6810 *) Change type of various DES function arguments from des_cblock
6811 (which means, in function argument declarations, pointer to char)
6812 to des_cblock * (meaning pointer to array with 8 char elements),
6813 which allows the compiler to do more typechecking; it was like
6814 that back in SSLeay, but with lots of ugly casts.
6816 Introduce new type const_des_cblock.
6819 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6820 problems: find RecipientInfo structure that matches recipient certificate
6821 and initialise the ASN1 structures properly based on passed cipher.
6824 *) Belatedly make the BN tests actually check the results.
6827 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6828 to and from BNs: it was completely broken. New compilation option
6829 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6830 key elements as negative integers.
6833 *) Reorganize and speed up MD5.
6834 [Andy Polyakov <appro@fy.chalmers.se>]
6837 [Richard Levitte <richard@levitte.org>]
6839 *) New option -out to asn1parse to allow the parsed structure to be
6840 output to a file. This is most useful when combined with the -strparse
6841 option to examine the output of things like OCTET STRINGS.
6844 *) Make SSL library a little more fool-proof by not requiring any longer
6845 that SSL_set_{accept,connect}_state be called before
6846 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6847 in many applications because usually everything *appeared* to work as
6848 intended anyway -- now it really works as intended).
6851 *) Move openssl.cnf out of lib/.
6854 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6855 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6856 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6857 [Ralf S. Engelschall]
6859 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6860 handle PKCS#7 enveloped data properly.
6861 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6863 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6864 copying pointers. The cert_st handling is changed by this in
6865 various ways (and thus what used to be known as ctx->default_cert
6866 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6867 any longer when s->cert does not give us what we need).
6868 ssl_cert_instantiate becomes obsolete by this change.
6869 As soon as we've got the new code right (possibly it already is?),
6870 we have solved a couple of bugs of the earlier code where s->cert
6871 was used as if it could not have been shared with other SSL structures.
6873 Note that using the SSL API in certain dirty ways now will result
6874 in different behaviour than observed with earlier library versions:
6875 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6876 does not influence s as it used to.
6878 In order to clean up things more thoroughly, inside SSL_SESSION
6879 we don't use CERT any longer, but a new structure SESS_CERT
6880 that holds per-session data (if available); currently, this is
6881 the peer's certificate chain and, for clients, the server's certificate
6882 and temporary key. CERT holds only those values that can have
6883 meaningful defaults in an SSL_CTX.
6886 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6887 from the internal representation. Various PKCS#7 fixes: remove some
6888 evil casts and set the enc_dig_alg field properly based on the signing
6892 *) Allow PKCS#12 password to be set from the command line or the
6893 environment. Let 'ca' get its config file name from the environment
6894 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6898 *) Allow certificate policies extension to use an IA5STRING for the
6899 organization field. This is contrary to the PKIX definition but
6900 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6904 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6905 without disallowing inline assembler and the like for non-pedantic builds.
6908 *) Support Borland C++ builder.
6909 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6914 *) SHA-1 cleanups and performance enhancements.
6915 [Andy Polyakov <appro@fy.chalmers.se>]
6917 *) Sparc v8plus assembler for the bignum library.
6918 [Andy Polyakov <appro@fy.chalmers.se>]
6920 *) Accept any -xxx and +xxx compiler options in Configure.
6923 *) Update HPUX configuration.
6926 *) Add missing sk_<type>_unshift() function to safestack.h
6927 [Ralf S. Engelschall]
6929 *) New function SSL_CTX_use_certificate_chain_file that sets the
6930 "extra_cert"s in addition to the certificate. (This makes sense
6931 only for "PEM" format files, as chains as a whole are not
6935 *) Support verify_depth from the SSL API.
6936 x509_vfy.c had what can be considered an off-by-one-error:
6937 Its depth (which was not part of the external interface)
6938 was actually counting the number of certificates in a chain;
6939 now it really counts the depth.
6942 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6943 instead of X509err, which often resulted in confusing error
6944 messages since the error codes are not globally unique
6945 (e.g. an alleged error in ssl3_accept when a certificate
6946 didn't match the private key).
6948 *) New function SSL_CTX_set_session_id_context that allows to set a default
6949 value (so that you don't need SSL_set_session_id_context for each
6950 connection using the SSL_CTX).
6953 *) OAEP decoding bug fix.
6956 *) Support INSTALL_PREFIX for package builders, as proposed by
6960 *) New Configure options "threads" and "no-threads". For systems
6961 where the proper compiler options are known (currently Solaris
6962 and Linux), "threads" is the default.
6965 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6968 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6969 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6970 such as /usr/local/bin.
6973 *) "make linux-shared" to build shared libraries.
6974 [Niels Poppe <niels@netbox.org>]
6976 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6979 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6980 extension adding in x509 utility.
6983 *) Remove NOPROTO sections and error code comments.
6986 *) Partial rewrite of the DEF file generator to now parse the ANSI
6990 *) New Configure options --prefix=DIR and --openssldir=DIR.
6993 *) Complete rewrite of the error code script(s). It is all now handled
6994 by one script at the top level which handles error code gathering,
6995 header rewriting and C source file generation. It should be much better
6996 than the old method: it now uses a modified version of Ulf's parser to
6997 read the ANSI prototypes in all header files (thus the old K&R definitions
6998 aren't needed for error creation any more) and do a better job of
6999 translating function codes into names. The old 'ASN1 error code imbedded
7000 in a comment' is no longer necessary and it doesn't use .err files which
7001 have now been deleted. Also the error code call doesn't have to appear all
7002 on one line (which resulted in some large lines...).
7005 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7008 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7009 0 (which usually indicates a closed connection), but continue reading.
7012 *) Fix some race conditions.
7015 *) Add support for CRL distribution points extension. Add Certificate
7016 Policies and CRL distribution points documentation.
7019 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7022 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7023 8 of keying material. Merlin has also confirmed interop with this fix
7024 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7025 [Merlin Hughes <merlin@baltimore.ie>]
7027 *) Fix lots of warnings.
7028 [Richard Levitte <levitte@stacken.kth.se>]
7030 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7031 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7032 [Richard Levitte <levitte@stacken.kth.se>]
7034 *) Fix problems with sizeof(long) == 8.
7035 [Andy Polyakov <appro@fy.chalmers.se>]
7037 *) Change functions to ANSI C.
7040 *) Fix typos in error codes.
7041 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7043 *) Remove defunct assembler files from Configure.
7046 *) SPARC v8 assembler BIGNUM implementation.
7047 [Andy Polyakov <appro@fy.chalmers.se>]
7049 *) Support for Certificate Policies extension: both print and set.
7050 Various additions to support the r2i method this uses.
7053 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7054 return a const string when you are expecting an allocated buffer.
7057 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7058 types DirectoryString and DisplayText.
7061 *) Add code to allow r2i extensions to access the configuration database,
7062 add an LHASH database driver and add several ctx helper functions.
7065 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7066 fail when they extended the size of a BIGNUM.
7069 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7070 support typesafe stack.
7073 *) Fix typo in SSL_[gs]et_options().
7074 [Nils Frostberg <nils@medcom.se>]
7076 *) Delete various functions and files that belonged to the (now obsolete)
7077 old X509V3 handling code.
7080 *) New Configure option "rsaref".
7083 *) Don't auto-generate pem.h.
7086 *) Introduce type-safe ASN.1 SETs.
7089 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7090 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7092 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7093 that links with OpenSSL (well at least cause lots of warnings), but fear
7094 not: the conversion is trivial, and it eliminates loads of evil casts. A
7095 few STACKed things have been converted already. Feel free to convert more.
7096 In the fullness of time, I'll do away with the STACK type altogether.
7099 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7100 specified in <certfile> by updating the entry in the index.txt file.
7101 This way one no longer has to edit the index.txt file manually for
7102 revoking a certificate. The -revoke option does the gory details now.
7103 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7105 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7106 `-text' option at all and this way the `-noout -text' combination was
7107 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7108 [Ralf S. Engelschall]
7110 *) Make sure a corresponding plain text error message exists for the
7111 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7112 verify callback function determined that a certificate was revoked.
7113 [Ralf S. Engelschall]
7115 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7116 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7117 all available cipers including rc5, which was forgotten until now.
7118 In order to let the testing shell script know which algorithms
7119 are available, a new (up to now undocumented) command
7120 "openssl list-cipher-commands" is used.
7123 *) Bugfix: s_client occasionally would sleep in select() when
7124 it should have checked SSL_pending() first.
7127 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7128 the raw DSA values prior to ASN.1 encoding.
7131 *) Tweaks to Configure
7132 [Niels Poppe <niels@netbox.org>]
7134 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7138 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7141 *) New config option to avoid instructions that are illegal on the 80386.
7142 The default code is faster, but requires at least a 486.
7145 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7146 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7147 same as SSL2_VERSION anyway.
7150 *) New "-showcerts" option for s_client.
7153 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7154 application. Various cleanups and fixes.
7157 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7158 modify error routines to work internally. Add error codes and PBE init
7159 to library startup routines.
7162 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7163 packing functions to asn1 and evp. Changed function names and error
7164 codes along the way.
7167 *) PKCS12 integration: and so it begins... First of several patches to
7168 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7169 objects to objects.h
7172 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7173 and display support for Thawte strong extranet extension.
7176 *) Add LinuxPPC support.
7177 [Jeff Dubrule <igor@pobox.org>]
7179 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7180 bn_div_words in alpha.s.
7181 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7183 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7184 OAEP isn't supported when OpenSSL is built with RSAref.
7185 [Ulf Moeller <ulf@fitug.de>]
7187 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7188 so they no longer are missing under -DNOPROTO.
7189 [Soren S. Jorvang <soren@t.dk>]
7192 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7194 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7195 doesn't work when the session is reused. Coming soon!
7198 *) Fix a security hole, that allows sessions to be reused in the wrong
7199 context thus bypassing client cert protection! All software that uses
7200 client certs and session caches in multiple contexts NEEDS PATCHING to
7201 allow session reuse! A fuller solution is in the works.
7202 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7204 *) Some more source tree cleanups (removed obsolete files
7205 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7206 permission on "config" script to be executable) and a fix for the INSTALL
7208 [Ulf Moeller <ulf@fitug.de>]
7210 *) Remove some legacy and erroneous uses of malloc, free instead of
7212 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7214 *) Make rsa_oaep_test return non-zero on error.
7215 [Ulf Moeller <ulf@fitug.de>]
7217 *) Add support for native Solaris shared libraries. Configure
7218 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7219 if someone would make that last step automatic.
7220 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7222 *) ctx_size was not built with the right compiler during "make links". Fixed.
7225 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7226 except NULL ciphers". This means the default cipher list will no longer
7227 enable NULL ciphers. They need to be specifically enabled e.g. with
7228 the string "DEFAULT:eNULL".
7231 *) Fix to RSA private encryption routines: if p < q then it would
7232 occasionally produce an invalid result. This will only happen with
7233 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7236 *) Be less restrictive and allow also `perl util/perlpath.pl
7237 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7238 because this way one can also use an interpreter named `perl5' (which is
7239 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7240 installed as `perl').
7241 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7243 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7244 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7246 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7247 advapi32.lib to Win32 build and change the pem test comparision
7248 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7249 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7250 and crypto/des/ede_cbcm_enc.c.
7253 *) DES quad checksum was broken on big-endian architectures. Fixed.
7256 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7257 Win32 test batch file so it (might) work again. The Win32 test batch file
7258 is horrible: I feel ill....
7261 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7262 in e_os.h. Audit of header files to check ANSI and non ANSI
7263 sections: 10 functions were absent from non ANSI section and not exported
7264 from Windows DLLs. Fixed up libeay.num for new functions.
7267 *) Make `openssl version' output lines consistent.
7268 [Ralf S. Engelschall]
7270 *) Fix Win32 symbol export lists for BIO functions: Added
7271 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7272 to ms/libeay{16,32}.def.
7273 [Ralf S. Engelschall]
7275 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7276 fine under Unix and passes some trivial tests I've now added. But the
7277 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7278 added to make sure no one expects that this stuff really works in the
7279 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7280 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7282 [Ralf S. Engelschall]
7284 *) Fix the generation of two part addresses in perl.
7285 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7287 *) Add config entry for Linux on MIPS.
7288 [John Tobey <jtobey@channel1.com>]
7290 *) Make links whenever Configure is run, unless we are on Windoze.
7293 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7294 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7298 *) Add a useful kludge to allow package maintainers to specify compiler and
7299 other platforms details on the command line without having to patch the
7300 Configure script everytime: One now can use ``perl Configure
7301 <id>:<details>'', i.e. platform ids are allowed to have details appended
7302 to them (seperated by colons). This is treated as there would be a static
7303 pre-configured entry in Configure's %table under key <id> with value
7304 <details> and ``perl Configure <id>'' is called. So, when you want to
7305 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7306 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7307 now, which overrides the FreeBSD-elf entry on-the-fly.
7308 [Ralf S. Engelschall]
7310 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7313 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7314 on the `perl Configure ...' command line. This way one can compile
7315 OpenSSL libraries with Position Independent Code (PIC) which is needed
7316 for linking it into DSOs.
7317 [Ralf S. Engelschall]
7319 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7323 *) Cleaned up the LICENSE document: The official contact for any license
7324 questions now is the OpenSSL core team under openssl-core@openssl.org.
7325 And add a paragraph about the dual-license situation to make sure people
7326 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7327 to the OpenSSL toolkit.
7328 [Ralf S. Engelschall]
7330 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7331 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7332 Additonally cleaned up the `make links' target: Remove unnecessary
7333 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7334 to speed processing and no longer clutter the display with confusing
7335 stuff. Instead only the actually done links are displayed.
7336 [Ralf S. Engelschall]
7338 *) Permit null encryption ciphersuites, used for authentication only. It used
7339 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7340 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7344 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7345 signed attributes when verifying signatures (this would break them),
7346 the detached data encoding was wrong and public keys obtained using
7347 X509_get_pubkey() weren't freed.
7350 *) Add text documentation for the BUFFER functions. Also added a work around
7351 to a Win95 console bug. This was triggered by the password read stuff: the
7352 last character typed gets carried over to the next fread(). If you were
7353 generating a new cert request using 'req' for example then the last
7354 character of the passphrase would be CR which would then enter the first
7358 *) Added the new `Includes OpenSSL Cryptography Software' button as
7359 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7360 button and can be used by applications based on OpenSSL to show the
7361 relationship to the OpenSSL project.
7362 [Ralf S. Engelschall]
7364 *) Remove confusing variables in function signatures in files
7365 ssl/ssl_lib.c and ssl/ssl.h.
7366 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7368 *) Don't install bss_file.c under PREFIX/include/
7369 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7371 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7372 functions that return function pointers and has support for NT specific
7373 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7374 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7375 unsigned to signed types: this was killing the Win32 compile.
7378 *) Add new certificate file to stack functions,
7379 SSL_add_dir_cert_subjects_to_stack() and
7380 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7381 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7382 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7383 This means that Apache-SSL and similar packages don't have to mess around
7384 to add as many CAs as they want to the preferred list.
7387 *) Experiment with doxygen documentation. Currently only partially applied to
7389 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7390 openssl.doxy as the configuration file.
7393 *) Get rid of remaining C++-style comments which strict C compilers hate.
7394 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7396 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7397 compiled in by default: it has problems with large keys.
7400 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7401 DH private keys and/or callback functions which directly correspond to
7402 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7403 is needed for applications which have to configure certificates on a
7404 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7406 For the RSA certificate situation is makes no difference, but
7407 for the DSA certificate situation this fixes the "no shared cipher"
7408 problem where the OpenSSL cipher selection procedure failed because the
7409 temporary keys were not overtaken from the context and the API provided
7410 no way to reconfigure them.
7411 The new functions now let applications reconfigure the stuff and they
7412 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7413 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7414 non-public-API function ssl_cert_instantiate() is used as a helper
7415 function and also to reduce code redundancy inside ssl_rsa.c.
7416 [Ralf S. Engelschall]
7418 *) Move s_server -dcert and -dkey options out of the undocumented feature
7419 area because they are useful for the DSA situation and should be
7420 recognized by the users.
7421 [Ralf S. Engelschall]
7423 *) Fix the cipher decision scheme for export ciphers: the export bits are
7424 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7425 SSL_EXP_MASK. So, the original variable has to be used instead of the
7426 already masked variable.
7427 [Richard Levitte <levitte@stacken.kth.se>]
7429 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7430 [Richard Levitte <levitte@stacken.kth.se>]
7432 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7433 from `int' to `unsigned int' because it's a length and initialized by
7434 EVP_DigestFinal() which expects an `unsigned int *'.
7435 [Richard Levitte <levitte@stacken.kth.se>]
7437 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7438 script. Instead use the usual Shell->Perl transition trick.
7439 [Ralf S. Engelschall]
7441 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7442 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7443 -noout -modulus' as it's already the case for `openssl rsa -noout
7444 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7445 currently the public key is printed (a decision which was already done by
7446 `openssl dsa -modulus' in the past) which serves a similar purpose.
7447 Additionally the NO_RSA no longer completely removes the whole -modulus
7448 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7450 [Ralf S. Engelschall]
7452 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7453 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7454 [Arne Ansper <arne@ats.cyber.ee>]
7456 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7457 to be added. Now both 'req' and 'ca' can use new objects defined in the
7461 *) Add cool BIO that does syslog (or event log on NT).
7462 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7464 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7465 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7466 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7467 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7470 *) Add preliminary config info for new extension code.
7473 *) Make RSA_NO_PADDING really use no padding.
7474 [Ulf Moeller <ulf@fitug.de>]
7476 *) Generate errors when private/public key check is done.
7479 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7480 for some CRL extensions and new objects added.
7483 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7484 key usage extension and fuller support for authority key id.
7487 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7488 padding method for RSA, which is recommended for new applications in PKCS
7489 #1 v2.0 (RFC 2437, October 1998).
7490 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7491 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7492 against Bleichbacher's attack on RSA.
7493 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7496 *) Updates to the new SSL compression code
7497 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7499 *) Fix so that the version number in the master secret, when passed
7500 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7501 (because the server will not accept higher), that the version number
7502 is 0x03,0x01, not 0x03,0x00
7503 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7505 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7506 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7507 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7510 *) Support for RAW extensions where an arbitrary extension can be
7511 created by including its DER encoding. See apps/openssl.cnf for
7515 *) Make sure latest Perl versions don't interpret some generated C array
7516 code as Perl array code in the crypto/err/err_genc.pl script.
7517 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7519 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7520 not many people have the assembler. Various Win32 compilation fixes and
7521 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7525 *) Modify configure script 'Configure' to automatically create crypto/date.h
7526 file under Win32 and also build pem.h from pem.org. New script
7527 util/mkfiles.pl to create the MINFO file on environments that can't do a
7528 'make files': perl util/mkfiles.pl >MINFO should work.
7531 *) Major rework of DES function declarations, in the pursuit of correctness
7532 and purity. As a result, many evil casts evaporated, and some weirdness,
7533 too. You may find this causes warnings in your code. Zapping your evil
7534 casts will probably fix them. Mostly.
7537 *) Fix for a typo in asn1.h. Bug fix to object creation script
7538 obj_dat.pl. It considered a zero in an object definition to mean
7539 "end of object": none of the objects in objects.h have any zeros
7540 so it wasn't spotted.
7541 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7543 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7544 Masking (CBCM). In the absence of test vectors, the best I have been able
7545 to do is check that the decrypt undoes the encrypt, so far. Send me test
7546 vectors if you have them.
7549 *) Correct calculation of key length for export ciphers (too much space was
7550 allocated for null ciphers). This has not been tested!
7553 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7554 message is now correct (it understands "crypto" and "ssl" on its
7555 command line). There is also now an "update" option. This will update
7556 the util/ssleay.num and util/libeay.num files with any new functions.
7558 perl util/mkdef.pl crypto ssl update
7559 it will update them.
7562 *) Overhauled the Perl interface (perl/*):
7563 - ported BN stuff to OpenSSL's different BN library
7564 - made the perl/ source tree CVS-aware
7565 - renamed the package from SSLeay to OpenSSL (the files still contain
7566 their history because I've copied them in the repository)
7567 - removed obsolete files (the test scripts will be replaced
7568 by better Test::Harness variants in the future)
7569 [Ralf S. Engelschall]
7571 *) First cut for a very conservative source tree cleanup:
7572 1. merge various obsolete readme texts into doc/ssleay.txt
7573 where we collect the old documents and readme texts.
7574 2. remove the first part of files where I'm already sure that we no
7575 longer need them because of three reasons: either they are just temporary
7576 files which were left by Eric or they are preserved original files where
7577 I've verified that the diff is also available in the CVS via "cvs diff
7578 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7579 the crypto/md/ stuff).
7580 [Ralf S. Engelschall]
7582 *) More extension code. Incomplete support for subject and issuer alt
7583 name, issuer and authority key id. Change the i2v function parameters
7584 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7585 what that's for :-) Fix to ASN1 macro which messed up
7586 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7589 *) Preliminary support for ENUMERATED type. This is largely copied from the
7593 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7594 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7596 *) Make sure `make rehash' target really finds the `openssl' program.
7597 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7599 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7600 like to hear about it if this slows down other processors.
7603 *) Add CygWin32 platform information to Configure script.
7604 [Alan Batie <batie@aahz.jf.intel.com>]
7606 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7607 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7609 *) New program nseq to manipulate netscape certificate sequences
7612 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7616 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7617 but the BN code had some problems that would cause failures when
7618 doing certificate verification and some other functions.
7619 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7621 *) Add ASN1 and PEM code to support netscape certificate sequences.
7624 *) Add ASN1 and PEM code to support netscape certificate sequences.
7627 *) Add several PKIX and private extended key usage OIDs.
7630 *) Modify the 'ca' program to handle the new extension code. Modify
7631 openssl.cnf for new extension format, add comments.
7634 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7635 and add a sample to openssl.cnf so req -x509 now adds appropriate
7639 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7640 error code, add initial support to X509_print() and x509 application.
7643 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7644 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7645 stuff is currently isolated and isn't even compiled yet.
7648 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7649 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7650 Removed the versions check from X509 routines when loading extensions:
7651 this allows certain broken certificates that don't set the version
7652 properly to be processed.
7655 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7656 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7657 can still be regenerated with "make depend".
7660 *) Spelling mistake in C version of CAST-128.
7661 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7663 *) Changes to the error generation code. The perl script err-code.pl
7664 now reads in the old error codes and retains the old numbers, only
7665 adding new ones if necessary. It also only changes the .err files if new
7666 codes are added. The makefiles have been modified to only insert errors
7667 when needed (to avoid needlessly modifying header files). This is done
7668 by only inserting errors if the .err file is newer than the auto generated
7669 C file. To rebuild all the error codes from scratch (the old behaviour)
7670 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7671 or delete all the .err files.
7674 *) CAST-128 was incorrectly implemented for short keys. The C version has
7675 been fixed, but is untested. The assembler versions are also fixed, but
7676 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7677 to regenerate it if needed.
7678 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7679 Hagino <itojun@kame.net>]
7681 *) File was opened incorrectly in randfile.c.
7682 [Ulf Möller <ulf@fitug.de>]
7684 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7685 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7686 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7687 al: it's just almost always a UTCTime. Note this patch adds new error
7688 codes so do a "make errors" if there are problems.
7691 *) Correct Linux 1 recognition in config.
7692 [Ulf Möller <ulf@fitug.de>]
7694 *) Remove pointless MD5 hash when using DSA keys in ca.
7695 [Anonymous <nobody@replay.com>]
7697 *) Generate an error if given an empty string as a cert directory. Also
7698 generate an error if handed NULL (previously returned 0 to indicate an
7699 error, but didn't set one).
7700 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7702 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7705 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7706 parameters. This was causing a warning which killed off the Win32 compile.
7709 *) Remove C++ style comments from crypto/bn/bn_local.h.
7710 [Neil Costigan <neil.costigan@celocom.com>]
7712 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7713 based on a text string, looking up short and long names and finally
7714 "dot" format. The "dot" format stuff didn't work. Added new function
7715 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7716 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7717 OID is not part of the table.
7720 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7721 X509_LOOKUP_by_alias().
7724 *) Sort openssl functions by name.
7727 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7728 encryption from sample DSA keys (in case anyone is interested the password
7732 *) Make _all_ *_free functions accept a NULL pointer.
7733 [Frans Heymans <fheymans@isaserver.be>]
7735 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7737 [Anonymous <nobody@replay.com>]
7739 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7740 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7742 *) Don't blow it for numeric -newkey arguments to apps/req.
7743 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7745 *) Temp key "for export" tests were wrong in s3_srvr.c.
7746 [Anonymous <nobody@replay.com>]
7748 *) Add prototype for temp key callback functions
7749 SSL_CTX_set_tmp_{rsa,dh}_callback().
7752 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7753 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7756 *) X509_name_add_entry() freed the wrong thing after an error.
7757 [Arne Ansper <arne@ats.cyber.ee>]
7759 *) rsa_eay.c would attempt to free a NULL context.
7760 [Arne Ansper <arne@ats.cyber.ee>]
7762 *) BIO_s_socket() had a broken should_retry() on Windoze.
7763 [Arne Ansper <arne@ats.cyber.ee>]
7765 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7766 [Arne Ansper <arne@ats.cyber.ee>]
7768 *) Make sure the already existing X509_STORE->depth variable is initialized
7769 in X509_STORE_new(), but document the fact that this variable is still
7770 unused in the certificate verification process.
7771 [Ralf S. Engelschall]
7773 *) Fix the various library and apps files to free up pkeys obtained from
7774 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7777 *) Fix reference counting in X509_PUBKEY_get(). This makes
7778 demos/maurice/example2.c work, amongst others, probably.
7779 [Steve Henson and Ben Laurie]
7781 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7782 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7783 are no longer created. This way we have a single and consistent command
7784 line interface `openssl <command>', similar to `cvs <command>'.
7785 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7787 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7788 BIT STRING wrapper always have zero unused bits.
7791 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7794 *) Make the top-level INSTALL documentation easier to understand.
7797 *) Makefiles updated to exit if an error occurs in a sub-directory
7798 make (including if user presses ^C) [Paul Sutton]
7800 *) Make Montgomery context stuff explicit in RSA data structure.
7803 *) Fix build order of pem and err to allow for generated pem.h.
7806 *) Fix renumbering bug in X509_NAME_delete_entry().
7809 *) Enhanced the err-ins.pl script so it makes the error library number
7810 global and can add a library name. This is needed for external ASN1 and
7811 other error libraries.
7814 *) Fixed sk_insert which never worked properly.
7817 *) Fix ASN1 macros so they can handle indefinite length construted
7818 EXPLICIT tags. Some non standard certificates use these: they can now
7822 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7823 into a single doc/ssleay.txt bundle. This way the information is still
7824 preserved but no longer messes up this directory. Now it's new room for
7825 the new set of documenation files.
7826 [Ralf S. Engelschall]
7828 *) SETs were incorrectly DER encoded. This was a major pain, because they
7829 shared code with SEQUENCEs, which aren't coded the same. This means that
7830 almost everything to do with SETs or SEQUENCEs has either changed name or
7831 number of arguments.
7832 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7834 *) Fix test data to work with the above.
7837 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7838 was already fixed by Eric for 0.9.1 it seems.
7839 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7841 *) Autodetect FreeBSD3.
7844 *) Fix various bugs in Configure. This affects the following platforms:
7848 unixware-2.0-pentium
7852 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7853 before they are needed.
7856 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7860 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7862 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7863 changed SSLeay to OpenSSL in version strings.
7864 [Ralf S. Engelschall]
7866 *) Some fixups to the top-level documents.
7869 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7870 because the symlink to include/ was missing.
7871 [Ralf S. Engelschall]
7873 *) Incorporated the popular no-RSA/DSA-only patches
7874 which allow to compile a RSA-free SSLeay.
7875 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7877 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7878 when "ssleay" is still not found.
7879 [Ralf S. Engelschall]
7881 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7882 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7884 *) Updated the README file.
7885 [Ralf S. Engelschall]
7887 *) Added various .cvsignore files in the CVS repository subdirs
7888 to make a "cvs update" really silent.
7889 [Ralf S. Engelschall]
7891 *) Recompiled the error-definition header files and added
7892 missing symbols to the Win32 linker tables.
7893 [Ralf S. Engelschall]
7895 *) Cleaned up the top-level documents;
7896 o new files: CHANGES and LICENSE
7897 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7898 o merged COPYRIGHT into LICENSE
7899 o removed obsolete TODO file
7900 o renamed MICROSOFT to INSTALL.W32
7901 [Ralf S. Engelschall]
7903 *) Removed dummy files from the 0.9.1b source tree:
7904 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7905 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7906 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7907 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7908 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7909 [Ralf S. Engelschall]
7911 *) Added various platform portability fixes.
7914 *) The Genesis of the OpenSSL rpject:
7915 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7916 Young and Tim J. Hudson created while they were working for C2Net until
7918 [The OpenSSL Project]
7921 Changes between 0.9.0b and 0.9.1b [not released]
7923 *) Updated a few CA certificates under certs/
7926 *) Changed some BIGNUM api stuff.
7929 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7930 DGUX x86, Linux Alpha, etc.
7933 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7934 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7938 *) Add -strparse option to asn1pars program which parses nested
7940 [Dr Stephen Henson <shenson@bigfoot.com>]
7942 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7945 *) DSA fix for "ca" program.
7948 *) Added "-genkey" option to "dsaparam" program.
7951 *) Added RIPE MD160 (rmd160) message digest.
7954 *) Added -a (all) option to "ssleay version" command.
7957 *) Added PLATFORM define which is the id given to Configure.
7960 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7963 *) Extended the ASN.1 parser routines.
7966 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7969 *) Added a BN_CTX to the BN library.
7972 *) Fixed the weak key values in DES library
7975 *) Changed API in EVP library for cipher aliases.
7978 *) Added support for RC2/64bit cipher.
7981 *) Converted the lhash library to the crypto/mem.c functions.
7984 *) Added more recognized ASN.1 object ids.
7987 *) Added more RSA padding checks for SSL/TLS.
7990 *) Added BIO proxy/filter functionality.
7993 *) Added extra_certs to SSL_CTX which can be used
7994 send extra CA certificates to the client in the CA cert chain sending
7995 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7998 *) Now Fortezza is denied in the authentication phase because
7999 this is key exchange mechanism is not supported by SSLeay at all.
8002 *) Additional PKCS1 checks.
8005 *) Support the string "TLSv1" for all TLS v1 ciphers.
8008 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8009 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8012 *) Fixed a few memory leaks.
8015 *) Fixed various code and comment typos.
8018 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8019 bytes sent in the client random.
8020 [Edward Bishop <ebishop@spyglass.com>]
projects / oweals / openssl.git / blob