5 Changes between 0.9.8g and 0.9.8h [xx XXX xxxx]
9 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
10 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
11 - added some more tests to do_tests.pl
12 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
13 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
14 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
15 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
16 - various changes to netware.pl to enable gcc-cross builds on Win32
18 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
19 - various changes to fix missing prototype warnings
20 - fixed x86nasm.pl to create correct asm files for NASM COFF output
21 - added AES, WHIRLPOOL and CPUID assembler code to build files
22 - added missing AES assembler make rules to mk1mf.pl
23 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
24 [Guenter Knauf <eflash@gmx.net>]
26 *) Implement certificate status request TLS extension defined in RFC3546.
27 A client can set the appropriate parameters and receive the encoded
28 OCSP response via a callback. A server can query the supplied parameters
29 and set the encoded OCSP response in the callback. Add simplified examples
30 to s_client and s_server.
33 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
36 + Binary incompatibility of ssl_ctx_st structure
37 + DTLS interoperation with non-compliant servers
38 + Don't call get_session_cb() without proposed session
39 + Fix ia64 assembler code
40 [Andy Polyakov, Steve Henson]
42 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
44 *) DTLS Handshake overhaul. There were longstanding issues with
45 OpenSSL DTLS implementation, which were making it impossible for
46 RFC 4347 compliant client to communicate with OpenSSL server.
47 Unfortunately just fixing these incompatibilities would "cut off"
48 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
49 server keeps tolerating non RFC compliant syntax. The opposite is
50 not true, 0.9.8f client can not communicate with earlier server.
51 This update even addresses CVE-2007-4995.
54 *) Changes to avoid need for function casts in OpenSSL: some compilers
55 (gcc 4.2 and later) reject their use.
56 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
59 *) Add RFC4507 support to OpenSSL. This includes the corrections in
60 RFC4507bis. The encrypted ticket format is an encrypted encoded
61 SSL_SESSION structure, that way new session features are automatically
64 If a client application caches session in an SSL_SESSION structure
65 support is transparent because tickets are now stored in the encoded
68 The SSL_CTX structure automatically generates keys for ticket
69 protection in servers so again support should be possible
70 with no application modification.
72 If a client or server wishes to disable RFC4507 support then the option
73 SSL_OP_NO_TICKET can be set.
75 Add a TLS extension debugging callback to allow the contents of any client
76 or server extensions to be examined.
78 This work was sponsored by Google.
81 *) Add initial support for TLS extensions, specifically for the server_name
82 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
83 have new members for a host name. The SSL data structure has an
84 additional member SSL_CTX *initial_ctx so that new sessions can be
85 stored in that context to allow for session resumption, even after the
86 SSL has been switched to a new SSL_CTX in reaction to a client's
87 server_name extension.
89 New functions (subject to change):
92 SSL_get_servername_type()
95 New CTRL codes and macros (subject to change):
97 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
98 - SSL_CTX_set_tlsext_servername_callback()
99 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
100 - SSL_CTX_set_tlsext_servername_arg()
101 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
103 openssl s_client has a new '-servername ...' option.
105 openssl s_server has new options '-servername_host ...', '-cert2 ...',
106 '-key2 ...', '-servername_fatal' (subject to change). This allows
107 testing the HostName extension for a specific single host name ('-cert'
108 and '-key' remain fallbacks for handshakes without HostName
109 negotiation). If the unrecogninzed_name alert has to be sent, this by
110 default is a warning; it becomes fatal with the '-servername_fatal'
113 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
115 *) Add AES and SSE2 assembly language support to VC++ build.
118 *) Mitigate attack on final subtraction in Montgomery reduction.
121 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
122 (which previously caused an internal error).
125 *) Squeeze another 10% out of IGE mode when in != out.
128 *) AES IGE mode speedup.
129 [Dean Gaudet (Google)]
131 *) Add the Korean symmetric 128-bit cipher SEED (see
132 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
133 add SEED ciphersuites from RFC 4162:
135 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
136 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
137 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
138 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
140 To minimize changes between patchlevels in the OpenSSL 0.9.8
141 series, SEED remains excluded from compilation unless OpenSSL
142 is configured with 'enable-seed'.
145 *) Mitigate branch prediction attacks, which can be practical if a
146 single processor is shared, allowing a spy process to extract
147 information. For detailed background information, see
148 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
149 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
150 and Necessary Software Countermeasures"). The core of the change
151 are new versions BN_div_no_branch() and
152 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
153 respectively, which are slower, but avoid the security-relevant
154 conditional branches. These are automatically called by BN_div()
155 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
156 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
157 remove a conditional branch.
159 BN_FLG_CONSTTIME is the new name for the previous
160 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
161 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
162 in the exponent causes BN_mod_exp_mont() to use the alternative
163 implementation in BN_mod_exp_mont_consttime().) The old name
164 remains as a deprecated alias.
166 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
167 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
168 constant-time implementations for more than just exponentiation.
169 Here too the old name is kept as a deprecated alias.
171 BN_BLINDING_new() will now use BN_dup() for the modulus so that
172 the BN_BLINDING structure gets an independent copy of the
173 modulus. This means that the previous "BIGNUM *m" argument to
174 BN_BLINDING_new() and to BN_BLINDING_create_param() now
175 essentially becomes "const BIGNUM *m", although we can't actually
176 change this in the header file before 0.9.9. It allows
177 RSA_setup_blinding() to use BN_with_flags() on the modulus to
178 enable BN_FLG_CONSTTIME.
180 [Matthew D Wood (Intel Corp)]
182 *) In the SSL/TLS server implementation, be strict about session ID
183 context matching (which matters if an application uses a single
184 external cache for different purposes). Previously,
185 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
186 set. This did ensure strict client verification, but meant that,
187 with applications using a single external cache for quite
188 different requirements, clients could circumvent ciphersuite
189 restrictions for a given session ID context by starting a session
190 in a different context.
193 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
194 a ciphersuite string such as "DEFAULT:RSA" cannot enable
195 authentication-only ciphersuites.
198 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
200 *) Since AES128 and AES256 (and similarly Camellia128 and
201 Camellia256) share a single mask bit in the logic of
202 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
203 kludge to work properly if AES128 is available and AES256 isn't
204 (or if Camellia128 is available and Camellia256 isn't).
207 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
208 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
209 When a point or a seed is encoded in a BIT STRING, we need to
210 prevent the removal of trailing zero bits to get the proper DER
211 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
212 of a NamedBitList, for which trailing 0 bits need to be removed.)
215 *) Have SSL/TLS server implementation tolerate "mismatched" record
216 protocol version while receiving ClientHello even if the
217 ClientHello is fragmented. (The server can't insist on the
218 particular protocol version it has chosen before the ServerHello
219 message has informed the client about his choice.)
222 *) Add RFC 3779 support.
223 [Rob Austein for ARIN, Ben Laurie]
225 *) Load error codes if they are not already present instead of using a
226 static variable. This allows them to be cleanly unloaded and reloaded.
227 Improve header file function name parsing.
230 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
231 or CAPABILITY handshake as required by RFCs.
234 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
236 *) Introduce limits to prevent malicious keys being able to
237 cause a denial of service. (CVE-2006-2940)
238 [Steve Henson, Bodo Moeller]
240 *) Fix ASN.1 parsing of certain invalid structures that can result
241 in a denial of service. (CVE-2006-2937) [Steve Henson]
243 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
244 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
246 *) Fix SSL client code which could crash if connecting to a
247 malicious SSLv2 server. (CVE-2006-4343)
248 [Tavis Ormandy and Will Drewry, Google Security Team]
250 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
251 match only those. Before that, "AES256-SHA" would be interpreted
252 as a pattern and match "AES128-SHA" too (since AES128-SHA got
253 the same strength classification in 0.9.7h) as we currently only
254 have a single AES bit in the ciphersuite description bitmap.
255 That change, however, also applied to ciphersuite strings such as
256 "RC4-MD5" that intentionally matched multiple ciphersuites --
257 namely, SSL 2.0 ciphersuites in addition to the more common ones
258 from SSL 3.0/TLS 1.0.
260 So we change the selection algorithm again: Naming an explicit
261 ciphersuite selects this one ciphersuite, and any other similar
262 ciphersuite (same bitmap) from *other* protocol versions.
263 Thus, "RC4-MD5" again will properly select both the SSL 2.0
264 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
266 Since SSL 2.0 does not have any ciphersuites for which the
267 128/256 bit distinction would be relevant, this works for now.
268 The proper fix will be to use different bits for AES128 and
269 AES256, which would have avoided the problems from the beginning;
270 however, bits are scarce, so we can only do this in a new release
271 (not just a patchlevel) when we can change the SSL_CIPHER
272 definition to split the single 'unsigned long mask' bitmap into
273 multiple values to extend the available space.
277 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
279 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
280 (CVE-2006-4339) [Ben Laurie and Google Security Team]
282 *) Add AES IGE and biIGE modes.
285 *) Change the Unix randomness entropy gathering to use poll() when
286 possible instead of select(), since the latter has some
287 undesirable limitations.
288 [Darryl Miles via Richard Levitte and Bodo Moeller]
290 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
291 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
292 cannot be implicitly activated as part of, e.g., the "AES" alias.
293 However, please upgrade to OpenSSL 0.9.9[-dev] for
294 non-experimental use of the ECC ciphersuites to get TLS extension
295 support, which is required for curve and point format negotiation
296 to avoid potential handshake problems.
299 *) Disable rogue ciphersuites:
301 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
302 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
303 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
305 The latter two were purportedly from
306 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
309 Also deactivate the remaining ciphersuites from
310 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
311 unofficial, and the ID has long expired.
314 *) Fix RSA blinding Heisenbug (problems sometimes occured on
315 dual-core machines) and other potential thread-safety issues.
318 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
319 versions), which is now available for royalty-free use
320 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
321 Also, add Camellia TLS ciphersuites from RFC 4132.
323 To minimize changes between patchlevels in the OpenSSL 0.9.8
324 series, Camellia remains excluded from compilation unless OpenSSL
325 is configured with 'enable-camellia'.
328 *) Disable the padding bug check when compression is in use. The padding
329 bug check assumes the first packet is of even length, this is not
330 necessarily true if compresssion is enabled and can result in false
331 positives causing handshake failure. The actual bug test is ancient
332 code so it is hoped that implementations will either have fixed it by
333 now or any which still have the bug do not support compression.
336 Changes between 0.9.8a and 0.9.8b [04 May 2006]
338 *) When applying a cipher rule check to see if string match is an explicit
339 cipher suite and only match that one cipher suite if it is.
342 *) Link in manifests for VC++ if needed.
343 [Austin Ziegler <halostatue@gmail.com>]
345 *) Update support for ECC-based TLS ciphersuites according to
346 draft-ietf-tls-ecc-12.txt with proposed changes (but without
347 TLS extensions, which are supported starting with the 0.9.9
348 branch, not in the OpenSSL 0.9.8 branch).
351 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
352 opaque EVP_CIPHER_CTX handling.
355 *) Fixes and enhancements to zlib compression code. We now only use
356 "zlib1.dll" and use the default __cdecl calling convention on Win32
357 to conform with the standards mentioned here:
358 http://www.zlib.net/DLL_FAQ.txt
359 Static zlib linking now works on Windows and the new --with-zlib-include
360 --with-zlib-lib options to Configure can be used to supply the location
361 of the headers and library. Gracefully handle case where zlib library
365 *) Several fixes and enhancements to the OID generation code. The old code
366 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
367 handle numbers larger than ULONG_MAX, truncated printing and had a
368 non standard OBJ_obj2txt() behaviour.
371 *) Add support for building of engines under engine/ as shared libraries
372 under VC++ build system.
375 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
376 Hopefully, we will not see any false combination of paths any more.
379 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
381 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
382 (part of SSL_OP_ALL). This option used to disable the
383 countermeasure against man-in-the-middle protocol-version
384 rollback in the SSL 2.0 server implementation, which is a bad
385 idea. (CVE-2005-2969)
387 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
388 for Information Security, National Institute of Advanced Industrial
389 Science and Technology [AIST], Japan)]
391 *) Add two function to clear and return the verify parameter flags.
394 *) Keep cipherlists sorted in the source instead of sorting them at
395 runtime, thus removing the need for a lock.
398 *) Avoid some small subgroup attacks in Diffie-Hellman.
399 [Nick Mathewson and Ben Laurie]
401 *) Add functions for well-known primes.
404 *) Extended Windows CE support.
405 [Satoshi Nakamura and Andy Polyakov]
407 *) Initialize SSL_METHOD structures at compile time instead of during
408 runtime, thus removing the need for a lock.
411 *) Make PKCS7_decrypt() work even if no certificate is supplied by
412 attempting to decrypt each encrypted key in turn. Add support to
416 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
418 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
421 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
424 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
425 key into the same file any more.
428 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
431 *) Add -utf8 command line and config file option to 'ca'.
432 [Stefan <stf@udoma.org]
434 *) Removed the macro des_crypt(), as it seems to conflict with some
435 libraries. Use DES_crypt().
438 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
439 involves renaming the source and generated shared-libs for
440 both. The engines will accept the corrected or legacy ids
441 ('ncipher' and '4758_cca' respectively) when binding. NB,
442 this only applies when building 'shared'.
443 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
445 *) Add attribute functions to EVP_PKEY structure. Modify
446 PKCS12_create() to recognize a CSP name attribute and
447 use it. Make -CSP option work again in pkcs12 utility.
450 *) Add new functionality to the bn blinding code:
451 - automatic re-creation of the BN_BLINDING parameters after
452 a fixed number of uses (currently 32)
453 - add new function for parameter creation
454 - introduce flags to control the update behaviour of the
455 BN_BLINDING parameters
456 - hide BN_BLINDING structure
457 Add a second BN_BLINDING slot to the RSA structure to improve
458 performance when a single RSA object is shared among several
462 *) Add support for DTLS.
463 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
465 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
466 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
469 *) Remove buggy and incompletet DH cert support from
470 ssl/ssl_rsa.c and ssl/s3_both.c
473 *) Use SHA-1 instead of MD5 as the default digest algorithm for
474 the apps/openssl applications.
477 *) Compile clean with "-Wall -Wmissing-prototypes
478 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
479 DEBUG_SAFESTACK must also be set.
482 *) Change ./Configure so that certain algorithms can be disabled by default.
483 The new counterpiece to "no-xxx" is "enable-xxx".
485 The patented RC5 and MDC2 algorithms will now be disabled unless
486 "enable-rc5" and "enable-mdc2", respectively, are specified.
488 (IDEA remains enabled despite being patented. This is because IDEA
489 is frequently required for interoperability, and there is no license
490 fee for non-commercial use. As before, "no-idea" can be used to
491 avoid this algorithm.)
495 *) Add processing of proxy certificates (see RFC 3820). This work was
496 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
497 EGEE (Enabling Grids for E-science in Europe).
500 *) RC4 performance overhaul on modern architectures/implementations, such
501 as Intel P4, IA-64 and AMD64.
504 *) New utility extract-section.pl. This can be used specify an alternative
505 section number in a pod file instead of having to treat each file as
506 a separate case in Makefile. This can be done by adding two lines to the
509 =for comment openssl_section:XXX
511 The blank line is mandatory.
515 *) New arguments -certform, -keyform and -pass for s_client and s_server
516 to allow alternative format key and certificate files and passphrase
520 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
521 update associated structures and add various utility functions.
523 Add new policy related verify parameters, include policy checking in
524 standard verify code. Enhance 'smime' application with extra parameters
525 to support policy checking and print out.
528 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
529 Nehemiah processors. These extensions support AES encryption in hardware
530 as well as RNG (though RNG support is currently disabled).
531 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
533 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
536 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
537 [Andy Polyakov and a number of other people]
539 *) Improved PowerPC platform support. Most notably BIGNUM assembler
540 implementation contributed by IBM.
541 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
543 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
544 exponent rather than 'unsigned long'. There is a corresponding change to
545 the new 'rsa_keygen' element of the RSA_METHOD structure.
546 [Jelte Jansen, Geoff Thorpe]
548 *) Functionality for creating the initial serial number file is now
549 moved from CA.pl to the 'ca' utility with a new option -create_serial.
551 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
552 number file to 1, which is bound to cause problems. To avoid
553 the problems while respecting compatibility between different 0.9.7
554 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
555 CA.pl for serial number initialization. With the new release 0.9.8,
556 we can fix the problem directly in the 'ca' utility.)
559 *) Reduced header interdepencies by declaring more opaque objects in
560 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
561 give fewer recursive includes, which could break lazy source code - so
562 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
563 developers should define this symbol when building and using openssl to
564 ensure they track the recommended behaviour, interfaces, [etc], but
565 backwards-compatible behaviour prevails when this isn't defined.
568 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
571 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
572 This will generate a random key of the appropriate length based on the
573 cipher context. The EVP_CIPHER can provide its own random key generation
574 routine to support keys of a specific form. This is used in the des and
575 3des routines to generate a key of the correct parity. Update S/MIME
576 code to use new functions and hence generate correct parity DES keys.
577 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
578 valid (weak or incorrect parity).
581 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
582 as looking them up. This is useful when the verified structure may contain
583 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
584 present unless the new PKCS7_NO_CRL flag is asserted.
587 *) Extend ASN1 oid configuration module. It now additionally accepts the
590 shortName = some long name, 1.2.3.4
593 *) Reimplemented the BN_CTX implementation. There is now no more static
594 limitation on the number of variables it can handle nor the depth of the
595 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
596 information can now expand as required, and rather than having a single
597 static array of bignums, BN_CTX now uses a linked-list of such arrays
598 allowing it to expand on demand whilst maintaining the usefulness of
602 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
603 to allow all RSA operations to function using a single BN_CTX.
606 *) Preliminary support for certificate policy evaluation and checking. This
607 is initially intended to pass the tests outlined in "Conformance Testing
608 of Relying Party Client Certificate Path Processing Logic" v1.07.
611 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
612 remained unused and not that useful. A variety of other little bignum
613 tweaks and fixes have also been made continuing on from the audit (see
617 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
618 associated ASN1, EVP and SSL functions and old ASN1 macros.
621 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
622 and this should never fail. So the return value from the use of
623 BN_set_word() (which can fail due to needless expansion) is now deprecated;
624 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
627 *) BN_CTX_get() should return zero-valued bignums, providing the same
628 initialised value as BN_new().
629 [Geoff Thorpe, suggested by Ulf Möller]
631 *) Support for inhibitAnyPolicy certificate extension.
634 *) An audit of the BIGNUM code is underway, for which debugging code is
635 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
636 is considered valid when processing BIGNUMs, and causes execution to
637 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
638 further steps are taken to deliberately pollute unused data in BIGNUM
639 structures to try and expose faulty code further on. For now, openssl will
640 (in its default mode of operation) continue to tolerate the inconsistent
641 forms that it has tolerated in the past, but authors and packagers should
642 consider trying openssl and their own applications when compiled with
643 these debugging symbols defined. It will help highlight potential bugs in
644 their own code, and will improve the test coverage for OpenSSL itself. At
645 some point, these tighter rules will become openssl's default to improve
646 maintainability, though the assert()s and other overheads will remain only
647 in debugging configurations. See bn.h for more details.
648 [Geoff Thorpe, Nils Larsch, Ulf Möller]
650 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
651 that can only be obtained through BN_CTX_new() (which implicitly
652 initialises it). The presence of this function only made it possible
653 to overwrite an existing structure (and cause memory leaks).
656 *) Because of the callback-based approach for implementing LHASH as a
657 template type, lh_insert() adds opaque objects to hash-tables and
658 lh_doall() or lh_doall_arg() are typically used with a destructor callback
659 to clean up those corresponding objects before destroying the hash table
660 (and losing the object pointers). So some over-zealous constifications in
661 LHASH have been relaxed so that lh_insert() does not take (nor store) the
662 objects as "const" and the lh_doall[_arg] callback wrappers are not
663 prototyped to have "const" restrictions on the object pointers they are
664 given (and so aren't required to cast them away any more).
667 *) The tmdiff.h API was so ugly and minimal that our own timing utility
668 (speed) prefers to use its own implementation. The two implementations
669 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
670 its object type properly exposed (MS_TM) instead of casting to/from "char
671 *". This may still change yet if someone realises MS_TM and "ms_time_***"
672 aren't necessarily the greatest nomenclatures - but this is what was used
673 internally to the implementation so I've used that for now.
676 *) Ensure that deprecated functions do not get compiled when
677 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
678 the self-tests were still using deprecated key-generation functions so
679 these have been updated also.
682 *) Reorganise PKCS#7 code to separate the digest location functionality
683 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
684 New function PKCS7_set_digest() to set the digest type for PKCS#7
685 digestedData type. Add additional code to correctly generate the
686 digestedData type and add support for this type in PKCS7 initialization
690 *) New function PKCS7_set0_type_other() this initializes a PKCS7
691 structure of type "other".
694 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
695 sure the loop does correctly stop and breaking ("division by zero")
696 modulus operations are not performed. The (pre-generated) prime
697 table crypto/bn/bn_prime.h was already correct, but it could not be
698 re-generated on some platforms because of the "division by zero"
699 situation in the script.
700 [Ralf S. Engelschall]
702 *) Update support for ECC-based TLS ciphersuites according to
703 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
704 SHA-1 now is only used for "small" curves (where the
705 representation of a field element takes up to 24 bytes); for
706 larger curves, the field element resulting from ECDH is directly
707 used as premaster secret.
708 [Douglas Stebila (Sun Microsystems Laboratories)]
710 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
711 curve secp160r1 to the tests.
712 [Douglas Stebila (Sun Microsystems Laboratories)]
714 *) Add the possibility to load symbols globally with DSO.
715 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
717 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
718 control of the error stack.
721 *) Add support for STORE in ENGINE.
724 *) Add the STORE type. The intention is to provide a common interface
725 to certificate and key stores, be they simple file-based stores, or
726 HSM-type store, or LDAP stores, or...
727 NOTE: The code is currently UNTESTED and isn't really used anywhere.
730 *) Add a generic structure called OPENSSL_ITEM. This can be used to
731 pass a list of arguments to any function as well as provide a way
732 for a function to pass data back to the caller.
735 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
736 works like BUF_strdup() but can be used to duplicate a portion of
737 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
741 *) Add the function sk_find_ex() which works like sk_find(), but will
742 return an index to an element even if an exact match couldn't be
743 found. The index is guaranteed to point at the element where the
744 searched-for key would be inserted to preserve sorting order.
747 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
748 takes an extra flags argument for optional functionality. Currently,
749 the following flags are defined:
751 OBJ_BSEARCH_VALUE_ON_NOMATCH
752 This one gets OBJ_bsearch_ex() to return a pointer to the first
753 element where the comparing function returns a negative or zero
756 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
757 This one gets OBJ_bsearch_ex() to return a pointer to the first
758 element where the comparing function returns zero. This is useful
759 if there are more than one element where the comparing function
763 *) Make it possible to create self-signed certificates with 'openssl ca'
764 in such a way that the self-signed certificate becomes part of the
765 CA database and uses the same mechanisms for serial number generation
766 as all other certificate signing. The new flag '-selfsign' enables
767 this functionality. Adapt CA.sh and CA.pl.in.
770 *) Add functionality to check the public key of a certificate request
771 against a given private. This is useful to check that a certificate
772 request can be signed by that key (self-signing).
775 *) Make it possible to have multiple active certificates with the same
776 subject in the CA index file. This is done only if the keyword
777 'unique_subject' is set to 'no' in the main CA section (default
778 if 'CA_default') of the configuration file. The value is saved
779 with the database itself in a separate index attribute file,
780 named like the index file with '.attr' appended to the name.
783 *) Generate muti valued AVAs using '+' notation in config files for
787 *) Support for nameConstraints certificate extension.
790 *) Support for policyConstraints certificate extension.
793 *) Support for policyMappings certificate extension.
796 *) Make sure the default DSA_METHOD implementation only uses its
797 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
798 and change its own handlers to be NULL so as to remove unnecessary
799 indirection. This lets alternative implementations fallback to the
800 default implementation more easily.
803 *) Support for directoryName in GeneralName related extensions
807 *) Make it possible to link applications using Makefile.shared.
808 Make that possible even when linking against static libraries!
811 *) Support for single pass processing for S/MIME signing. This now
812 means that S/MIME signing can be done from a pipe, in addition
813 cleartext signing (multipart/signed type) is effectively streaming
814 and the signed data does not need to be all held in memory.
816 This is done with a new flag PKCS7_STREAM. When this flag is set
817 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
818 is done after the data is output (and digests calculated) in
822 *) Add full support for -rpath/-R, both in shared libraries and
823 applications, at least on the platforms where it's known how
827 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
828 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
829 will now compute a table of multiples of the generator that
830 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
831 faster (notably in the case of a single point multiplication,
833 [Nils Larsch, Bodo Moeller]
835 *) IPv6 support for certificate extensions. The various extensions
836 which use the IP:a.b.c.d can now take IPv6 addresses using the
837 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
841 *) Added an ENGINE that implements RSA by performing private key
842 exponentiations with the GMP library. The conversions to and from
843 GMP's mpz_t format aren't optimised nor are any montgomery forms
844 cached, and on x86 it appears OpenSSL's own performance has caught up.
845 However there are likely to be other architectures where GMP could
846 provide a boost. This ENGINE is not built in by default, but it can be
847 specified at Configure time and should be accompanied by the necessary
848 linker additions, eg;
849 ./config -DOPENSSL_USE_GMP -lgmp
852 *) "openssl engine" will not display ENGINE/DSO load failure errors when
853 testing availability of engines with "-t" - the old behaviour is
854 produced by increasing the feature's verbosity with "-tt".
857 *) ECDSA routines: under certain error conditions uninitialized BN objects
858 could be freed. Solution: make sure initialization is performed early
859 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
863 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
864 and DH_METHOD (eg. by ENGINE implementations) to override the normal
865 software implementations. For DSA and DH, parameter generation can
866 also be overriden by providing the appropriate method callbacks.
869 *) Change the "progress" mechanism used in key-generation and
870 primality testing to functions that take a new BN_GENCB pointer in
871 place of callback/argument pairs. The new API functions have "_ex"
872 postfixes and the older functions are reimplemented as wrappers for
873 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
874 declarations of the old functions to help (graceful) attempts to
875 migrate to the new functions. Also, the new key-generation API
876 functions operate on a caller-supplied key-structure and return
877 success/failure rather than returning a key or NULL - this is to
878 help make "keygen" another member function of RSA_METHOD etc.
880 Example for using the new callback interface:
882 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
886 BN_GENCB_set(&my_cb, my_callback, my_arg);
888 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
889 /* For the meaning of a, b in calls to my_callback(), see the
890 * documentation of the function that calls the callback.
891 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
892 * my_callback should return 1 if it wants BN_is_prime_ex()
893 * to continue, or 0 to stop.
898 *) Change the ZLIB compression method to be stateful, and make it
899 available to TLS with the number defined in
900 draft-ietf-tls-compression-04.txt.
903 *) Add the ASN.1 structures and functions for CertificatePair, which
904 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
906 CertificatePair ::= SEQUENCE {
907 forward [0] Certificate OPTIONAL,
908 reverse [1] Certificate OPTIONAL,
909 -- at least one of the pair shall be present -- }
911 Also implement the PEM functions to read and write certificate
912 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
914 This needed to be defined, mostly for the sake of the LDAP
915 attribute crossCertificatePair, but may prove useful elsewhere as
919 *) Make it possible to inhibit symlinking of shared libraries in
920 Makefile.shared, for Cygwin's sake.
923 *) Extend the BIGNUM API by creating a function
924 void BN_set_negative(BIGNUM *a, int neg);
925 and a macro that behave like
926 int BN_is_negative(const BIGNUM *a);
928 to avoid the need to access 'a->neg' directly in applications.
931 *) Implement fast modular reduction for pseudo-Mersenne primes
932 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
933 EC_GROUP_new_curve_GFp() will now automatically use this
935 [Nils Larsch <nla@trustcenter.de>]
937 *) Add new lock type (CRYPTO_LOCK_BN).
940 *) Change the ENGINE framework to automatically load engines
941 dynamically from specific directories unless they could be
942 found to already be built in or loaded. Move all the
943 current engines except for the cryptodev one to a new
945 The engines in engines/ are built as shared libraries if
946 the "shared" options was given to ./Configure or ./config.
947 Otherwise, they are inserted in libcrypto.a.
948 /usr/local/ssl/engines is the default directory for dynamic
949 engines, but that can be overriden at configure time through
950 the usual use of --prefix and/or --openssldir, and at run
951 time with the environment variable OPENSSL_ENGINES.
952 [Geoff Thorpe and Richard Levitte]
954 *) Add Makefile.shared, a helper makefile to build shared
955 libraries. Addapt Makefile.org.
958 *) Add version info to Win32 DLLs.
959 [Peter 'Luna' Runestig" <peter@runestig.com>]
961 *) Add new 'medium level' PKCS#12 API. Certificates and keys
962 can be added using this API to created arbitrary PKCS#12
963 files while avoiding the low level API.
965 New options to PKCS12_create(), key or cert can be NULL and
966 will then be omitted from the output file. The encryption
967 algorithm NIDs can be set to -1 for no encryption, the mac
968 iteration count can be set to 0 to omit the mac.
970 Enhance pkcs12 utility by making the -nokeys and -nocerts
971 options work when creating a PKCS#12 file. New option -nomac
972 to omit the mac, NONE can be set for an encryption algorithm.
973 New code is modified to use the enhanced PKCS12_create()
974 instead of the low level API.
977 *) Extend ASN1 encoder to support indefinite length constructed
978 encoding. This can output sequences tags and octet strings in
979 this form. Modify pk7_asn1.c to support indefinite length
980 encoding. This is experimental and needs additional code to
981 be useful, such as an ASN1 bio and some enhanced streaming
984 Extend template encode functionality so that tagging is passed
985 down to the template encoder.
988 *) Let 'openssl req' fail if an argument to '-newkey' is not
989 recognized instead of using RSA as a default.
992 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
993 As these are not official, they are not included in "ALL";
994 the "ECCdraft" ciphersuite group alias can be used to select them.
995 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
997 *) Add ECDH engine support.
998 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1000 *) Add ECDH in new directory crypto/ecdh/.
1001 [Douglas Stebila (Sun Microsystems Laboratories)]
1003 *) Let BN_rand_range() abort with an error after 100 iterations
1004 without success (which indicates a broken PRNG).
1007 *) Change BN_mod_sqrt() so that it verifies that the input value
1008 is really the square of the return value. (Previously,
1009 BN_mod_sqrt would show GIGO behaviour.)
1012 *) Add named elliptic curves over binary fields from X9.62, SECG,
1013 and WAP/WTLS; add OIDs that were still missing.
1015 [Sheueling Chang Shantz and Douglas Stebila
1016 (Sun Microsystems Laboratories)]
1018 *) Extend the EC library for elliptic curves over binary fields
1019 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1022 EC_GF2m_simple_method
1026 EC_GROUP_new_curve_GF2m
1027 EC_GROUP_set_curve_GF2m
1028 EC_GROUP_get_curve_GF2m
1029 EC_POINT_set_affine_coordinates_GF2m
1030 EC_POINT_get_affine_coordinates_GF2m
1031 EC_POINT_set_compressed_coordinates_GF2m
1033 Point compression for binary fields is disabled by default for
1034 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1037 As binary polynomials are represented as BIGNUMs, various members
1038 of the EC_GROUP and EC_POINT data structures can be shared
1039 between the implementations for prime fields and binary fields;
1040 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1041 are essentially identical to their ..._GFp counterparts.
1042 (For simplicity, the '..._GFp' prefix has been dropped from
1043 various internal method names.)
1045 An internal 'field_div' method (similar to 'field_mul' and
1046 'field_sqr') has been added; this is used only for binary fields.
1048 [Sheueling Chang Shantz and Douglas Stebila
1049 (Sun Microsystems Laboratories)]
1051 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1052 through methods ('mul', 'precompute_mult').
1054 The generic implementations (now internally called 'ec_wNAF_mul'
1055 and 'ec_wNAF_precomputed_mult') remain the default if these
1056 methods are undefined.
1058 [Sheueling Chang Shantz and Douglas Stebila
1059 (Sun Microsystems Laboratories)]
1061 *) New function EC_GROUP_get_degree, which is defined through
1062 EC_METHOD. For curves over prime fields, this returns the bit
1063 length of the modulus.
1065 [Sheueling Chang Shantz and Douglas Stebila
1066 (Sun Microsystems Laboratories)]
1068 *) New functions EC_GROUP_dup, EC_POINT_dup.
1069 (These simply call ..._new and ..._copy).
1071 [Sheueling Chang Shantz and Douglas Stebila
1072 (Sun Microsystems Laboratories)]
1074 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1075 Polynomials are represented as BIGNUMs (where the sign bit is not
1076 used) in the following functions [macros]:
1079 BN_GF2m_sub [= BN_GF2m_add]
1080 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1081 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1082 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1084 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1085 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1086 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1087 BN_GF2m_cmp [= BN_ucmp]
1089 (Note that only the 'mod' functions are actually for fields GF(2^m).
1090 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1092 For some functions, an the irreducible polynomial defining a
1093 field can be given as an 'unsigned int[]' with strictly
1094 decreasing elements giving the indices of those bits that are set;
1095 i.e., p[] represents the polynomial
1096 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1098 p[0] > p[1] > ... > p[k] = 0.
1099 This applies to the following functions:
1104 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1105 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1107 BN_GF2m_mod_sqrt_arr
1108 BN_GF2m_mod_solve_quad_arr
1112 Conversion can be performed by the following functions:
1117 bntest.c has additional tests for binary polynomial arithmetic.
1119 Two implementations for BN_GF2m_mod_div() are available.
1120 The default algorithm simply uses BN_GF2m_mod_inv() and
1121 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1122 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1123 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1125 [Sheueling Chang Shantz and Douglas Stebila
1126 (Sun Microsystems Laboratories)]
1128 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1129 functionality is disabled at compile-time.
1130 [Douglas Stebila <douglas.stebila@sun.com>]
1132 *) Change default behaviour of 'openssl asn1parse' so that more
1133 information is visible when viewing, e.g., a certificate:
1135 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1136 mode the content of non-printable OCTET STRINGs is output in a
1137 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1138 avoid the appearance of a printable string.
1139 [Nils Larsch <nla@trustcenter.de>]
1141 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1143 EC_GROUP_set_asn1_flag()
1144 EC_GROUP_get_asn1_flag()
1145 EC_GROUP_set_point_conversion_form()
1146 EC_GROUP_get_point_conversion_form()
1147 These control ASN1 encoding details:
1148 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1149 has been set to OPENSSL_EC_NAMED_CURVE.
1150 - Points are encoded in uncompressed form by default; options for
1151 asn1_for are as for point2oct, namely
1152 POINT_CONVERSION_COMPRESSED
1153 POINT_CONVERSION_UNCOMPRESSED
1154 POINT_CONVERSION_HYBRID
1156 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1159 EC_GROUP_get0_seed()
1160 EC_GROUP_get_seed_len()
1161 This is used only for ASN1 purposes (so far).
1162 [Nils Larsch <nla@trustcenter.de>]
1164 *) Add 'field_type' member to EC_METHOD, which holds the NID
1165 of the appropriate field type OID. The new function
1166 EC_METHOD_get_field_type() returns this value.
1167 [Nils Larsch <nla@trustcenter.de>]
1172 EC_POINT_point2hex()
1173 EC_POINT_hex2point()
1174 providing useful interfaces to EC_POINT_point2oct() and
1175 EC_POINT_oct2point().
1176 [Nils Larsch <nla@trustcenter.de>]
1178 *) Change internals of the EC library so that the functions
1179 EC_GROUP_set_generator()
1180 EC_GROUP_get_generator()
1181 EC_GROUP_get_order()
1182 EC_GROUP_get_cofactor()
1183 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1184 to methods, which would lead to unnecessary code duplication when
1185 adding different types of curves.
1186 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1188 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1189 arithmetic, and such that modified wNAFs are generated
1190 (which avoid length expansion in many cases).
1193 *) Add a function EC_GROUP_check_discriminant() (defined via
1194 EC_METHOD) that verifies that the curve discriminant is non-zero.
1196 Add a function EC_GROUP_check() that makes some sanity tests
1197 on a EC_GROUP, its generator and order. This includes
1198 EC_GROUP_check_discriminant().
1199 [Nils Larsch <nla@trustcenter.de>]
1201 *) Add ECDSA in new directory crypto/ecdsa/.
1203 Add applications 'openssl ecparam' and 'openssl ecdsa'
1204 (these are based on 'openssl dsaparam' and 'openssl dsa').
1206 ECDSA support is also included in various other files across the
1207 library. Most notably,
1208 - 'openssl req' now has a '-newkey ecdsa:file' option;
1209 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1210 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1211 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1212 them suitable for ECDSA where domain parameters must be
1213 extracted before the specific public key;
1214 - ECDSA engine support has been added.
1215 [Nils Larsch <nla@trustcenter.de>]
1217 *) Include some named elliptic curves, and add OIDs from X9.62,
1218 SECG, and WAP/WTLS. Each curve can be obtained from the new
1220 EC_GROUP_new_by_curve_name(),
1221 and the list of available named curves can be obtained with
1222 EC_get_builtin_curves().
1223 Also add a 'curve_name' member to EC_GROUP objects, which can be
1225 EC_GROUP_set_curve_name()
1226 EC_GROUP_get_curve_name()
1227 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1229 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1230 was actually never needed) and in BN_mul(). The removal in BN_mul()
1231 required a small change in bn_mul_part_recursive() and the addition
1232 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1233 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1234 bn_sub_words() and bn_add_words() except they take arrays with
1238 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1240 *) In the SSL/TLS server implementation, be strict about session ID
1241 context matching (which matters if an application uses a single
1242 external cache for different purposes). Previously,
1243 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1244 set. This did ensure strict client verification, but meant that,
1245 with applications using a single external cache for quite
1246 different requirements, clients could circumvent ciphersuite
1247 restrictions for a given session ID context by starting a session
1248 in a different context.
1251 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1253 *) Cleanse PEM buffers before freeing them since they may contain
1255 [Benjamin Bennett <ben@psc.edu>]
1257 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1258 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1259 authentication-only ciphersuites.
1262 *) Since AES128 and AES256 share a single mask bit in the logic of
1263 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1264 kludge to work properly if AES128 is available and AES256 isn't.
1267 *) Expand security boundary to match 1.1.1 module.
1270 *) Remove redundant features: hash file source, editing of test vectors
1271 modify fipsld to use external fips_premain.c signature.
1274 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1275 run algorithm test programs.
1278 *) Make algorithm test programs more tolerant of whitespace.
1281 *) Have SSL/TLS server implementation tolerate "mismatched" record
1282 protocol version while receiving ClientHello even if the
1283 ClientHello is fragmented. (The server can't insist on the
1284 particular protocol version it has chosen before the ServerHello
1285 message has informed the client about his choice.)
1288 *) Load error codes if they are not already present instead of using a
1289 static variable. This allows them to be cleanly unloaded and reloaded.
1292 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1294 *) Introduce limits to prevent malicious keys being able to
1295 cause a denial of service. (CVE-2006-2940)
1296 [Steve Henson, Bodo Moeller]
1298 *) Fix ASN.1 parsing of certain invalid structures that can result
1299 in a denial of service. (CVE-2006-2937) [Steve Henson]
1301 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1302 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1304 *) Fix SSL client code which could crash if connecting to a
1305 malicious SSLv2 server. (CVE-2006-4343)
1306 [Tavis Ormandy and Will Drewry, Google Security Team]
1308 *) Change ciphersuite string processing so that an explicit
1309 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1310 will no longer include "AES128-SHA"), and any other similar
1311 ciphersuite (same bitmap) from *other* protocol versions (so that
1312 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1313 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1314 changes from 0.9.8b and 0.9.8d.
1317 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1319 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1320 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1322 *) Change the Unix randomness entropy gathering to use poll() when
1323 possible instead of select(), since the latter has some
1324 undesirable limitations.
1325 [Darryl Miles via Richard Levitte and Bodo Moeller]
1327 *) Disable rogue ciphersuites:
1329 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1330 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1331 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1333 The latter two were purportedly from
1334 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1337 Also deactive the remaining ciphersuites from
1338 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1339 unofficial, and the ID has long expired.
1342 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1343 dual-core machines) and other potential thread-safety issues.
1346 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1348 *) Adapt fipsld and the build system to link against the validated FIPS
1349 module in FIPS mode.
1352 *) Fixes for VC++ 2005 build under Windows.
1355 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1356 from a Windows bash shell such as MSYS. It is autodetected from the
1357 "config" script when run from a VC++ environment. Modify standard VC++
1358 build to use fipscanister.o from the GNU make build.
1361 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1363 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1364 The value now differs depending on if you build for FIPS or not.
1365 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1366 safely run with a non-FIPSed libcrypto, as it may crash because of
1367 the difference induced by this change.
1370 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1372 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1373 (part of SSL_OP_ALL). This option used to disable the
1374 countermeasure against man-in-the-middle protocol-version
1375 rollback in the SSL 2.0 server implementation, which is a bad
1376 idea. (CVE-2005-2969)
1378 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1379 for Information Security, National Institute of Advanced Industrial
1380 Science and Technology [AIST], Japan)]
1382 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1383 mainly for FIPS compliance and not fully integrated at this stage.
1386 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1387 the exponentiation using a fixed-length exponent. (Otherwise,
1388 the information leaked through timing could expose the secret key
1389 after many signatures; cf. Bleichenbacher's attack on DSA with
1393 *) Make a new fixed-window mod_exp implementation the default for
1394 RSA, DSA, and DH private-key operations so that the sequence of
1395 squares and multiplies and the memory access pattern are
1396 independent of the particular secret key. This will mitigate
1397 cache-timing and potential related attacks.
1399 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1400 and this is automatically used by BN_mod_exp_mont() if the new flag
1401 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1402 will use this BN flag for private exponents unless the flag
1403 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1404 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1406 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1408 *) Change the client implementation for SSLv23_method() and
1409 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1410 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1411 (Previously, the SSL 2.0 backwards compatible Client Hello
1412 message format would be used even with SSL_OP_NO_SSLv2.)
1415 *) Add support for smime-type MIME parameter in S/MIME messages which some
1419 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1420 a threadsafe manner. Modify rsa code to use new function and add calls
1421 to dsa and dh code (which had race conditions before).
1424 *) Include the fixed error library code in the C error file definitions
1425 instead of fixing them up at runtime. This keeps the error code
1426 structures constant.
1429 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1431 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1434 *) Fixes for newer kerberos headers. NB: the casts are needed because
1435 the 'length' field is signed on one version and unsigned on another
1436 with no (?) obvious way to tell the difference, without these VC++
1437 complains. Also the "definition" of FAR (blank) is no longer included
1438 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1439 some needed definitions.
1442 *) Undo Cygwin change.
1445 *) Added support for proxy certificates according to RFC 3820.
1446 Because they may be a security thread to unaware applications,
1447 they must be explicitely allowed in run-time. See
1448 docs/HOWTO/proxy_certificates.txt for further information.
1451 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1453 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1454 server and client random values. Previously
1455 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1456 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1458 This change has negligible security impact because:
1460 1. Server and client random values still have 24 bytes of pseudo random
1463 2. Server and client random values are sent in the clear in the initial
1466 3. The master secret is derived using the premaster secret (48 bytes in
1467 size for static RSA ciphersuites) as well as client server and random
1470 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1473 [Stephen Henson, reported by UK NISCC]
1475 *) Use Windows randomness collection on Cygwin.
1478 *) Fix hang in EGD/PRNGD query when communication socket is closed
1479 prematurely by EGD/PRNGD.
1480 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1482 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1485 *) Back-port of selected performance improvements from development
1486 branch, as well as improved support for PowerPC platforms.
1489 *) Add lots of checks for memory allocation failure, error codes to indicate
1490 failure and freeing up memory if a failure occurs.
1491 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1493 *) Add new -passin argument to dgst.
1496 *) Perform some character comparisons of different types in X509_NAME_cmp:
1497 this is needed for some certificates that reencode DNs into UTF8Strings
1498 (in violation of RFC3280) and can't or wont issue name rollover
1502 *) Make an explicit check during certificate validation to see that
1503 the CA setting in each certificate on the chain is correct. As a
1504 side effect always do the following basic checks on extensions,
1505 not just when there's an associated purpose to the check:
1507 - if there is an unhandled critical extension (unless the user
1508 has chosen to ignore this fault)
1509 - if the path length has been exceeded (if one is set at all)
1510 - that certain extensions fit the associated purpose (if one has
1514 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1516 *) Avoid a race condition when CRLs are checked in a multi threaded
1517 environment. This would happen due to the reordering of the revoked
1518 entries during signature checking and serial number lookup. Now the
1519 encoding is cached and the serial number sort performed under a lock.
1520 Add new STACK function sk_is_sorted().
1523 *) Add Delta CRL to the extension code.
1526 *) Various fixes to s3_pkt.c so alerts are sent properly.
1527 [David Holmes <d.holmes@f5.com>]
1529 *) Reduce the chances of duplicate issuer name and serial numbers (in
1530 violation of RFC3280) using the OpenSSL certificate creation utilities.
1531 This is done by creating a random 64 bit value for the initial serial
1532 number when a serial number file is created or when a self signed
1533 certificate is created using 'openssl req -x509'. The initial serial
1534 number file is created using 'openssl x509 -next_serial' in CA.pl
1535 rather than being initialized to 1.
1538 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1540 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1541 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1542 [Joe Orton, Steve Henson]
1544 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1546 [Joe Orton, Steve Henson]
1548 *) Make it possible to have multiple active certificates with the same
1549 subject in the CA index file. This is done only if the keyword
1550 'unique_subject' is set to 'no' in the main CA section (default
1551 if 'CA_default') of the configuration file. The value is saved
1552 with the database itself in a separate index attribute file,
1553 named like the index file with '.attr' appended to the name.
1556 *) X509 verify fixes. Disable broken certificate workarounds when
1557 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1558 keyUsage extension present. Don't accept CRLs with unhandled critical
1559 extensions: since verify currently doesn't process CRL extensions this
1560 rejects a CRL with *any* critical extensions. Add new verify error codes
1564 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1565 A clarification of RFC2560 will require the use of OCTET STRINGs and
1566 some implementations cannot handle the current raw format. Since OpenSSL
1567 copies and compares OCSP nonces as opaque blobs without any attempt at
1568 parsing them this should not create any compatibility issues.
1571 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1572 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1573 this HMAC (and other) operations are several times slower than OpenSSL
1577 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1578 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1580 *) Use the correct content when signing type "other".
1583 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1585 *) Fix various bugs revealed by running the NISCC test suite:
1587 Stop out of bounds reads in the ASN1 code when presented with
1588 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1590 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1592 If verify callback ignores invalid public key errors don't try to check
1593 certificate signature with the NULL public key.
1597 *) New -ignore_err option in ocsp application to stop the server
1598 exiting on the first error in a request.
1601 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1602 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1606 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1607 extra data after the compression methods not only for TLS 1.0
1608 but also for SSL 3.0 (as required by the specification).
1609 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1611 *) Change X509_certificate_type() to mark the key as exported/exportable
1612 when it's 512 *bits* long, not 512 bytes.
1615 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1616 blocks during encryption.
1619 *) Various fixes to base64 BIO and non blocking I/O. On write
1620 flushes were not handled properly if the BIO retried. On read
1621 data was not being buffered properly and had various logic bugs.
1622 This also affects blocking I/O when the data being decoded is a
1626 *) Various S/MIME bugfixes and compatibility changes:
1627 output correct application/pkcs7 MIME type if
1628 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1629 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1630 of files as .eml work). Correctly handle very long lines in MIME
1634 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1636 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1637 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1638 a protocol version number mismatch like a decryption error
1639 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1642 *) Turn on RSA blinding by default in the default implementation
1643 to avoid a timing attack. Applications that don't want it can call
1644 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1645 They would be ill-advised to do so in most cases.
1646 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1648 *) Change RSA blinding code so that it works when the PRNG is not
1649 seeded (in this case, the secret RSA exponent is abused as
1650 an unpredictable seed -- if it is not unpredictable, there
1651 is no point in blinding anyway). Make RSA blinding thread-safe
1652 by remembering the creator's thread ID in rsa->blinding and
1653 having all other threads use local one-time blinding factors
1654 (this requires more computation than sharing rsa->blinding, but
1655 avoids excessive locking; and if an RSA object is not shared
1656 between threads, blinding will still be very fast).
1659 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1660 ENGINE as defaults for all supported algorithms irrespective of
1661 the 'flags' parameter. 'flags' is now honoured, so applications
1662 should make sure they are passing it correctly.
1665 *) Target "mingw" now allows native Windows code to be generated in
1666 the Cygwin environment as well as with the MinGW compiler.
1669 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1671 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1672 via timing by performing a MAC computation even if incorrrect
1673 block cipher padding has been found. This is a countermeasure
1674 against active attacks where the attacker has to distinguish
1675 between bad padding and a MAC verification error. (CVE-2003-0078)
1677 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1678 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1679 Martin Vuagnoux (EPFL, Ilion)]
1681 *) Make the no-err option work as intended. The intention with no-err
1682 is not to have the whole error stack handling routines removed from
1683 libcrypto, it's only intended to remove all the function name and
1684 reason texts, thereby removing some of the footprint that may not
1685 be interesting if those errors aren't displayed anyway.
1687 NOTE: it's still possible for any application or module to have it's
1688 own set of error texts inserted. The routines are there, just not
1689 used by default when no-err is given.
1692 *) Add support for FreeBSD on IA64.
1693 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1695 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1696 Kerberos function mit_des_cbc_cksum(). Before this change,
1697 the value returned by DES_cbc_cksum() was like the one from
1698 mit_des_cbc_cksum(), except the bytes were swapped.
1699 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1701 *) Allow an application to disable the automatic SSL chain building.
1702 Before this a rather primitive chain build was always performed in
1703 ssl3_output_cert_chain(): an application had no way to send the
1704 correct chain if the automatic operation produced an incorrect result.
1706 Now the chain builder is disabled if either:
1708 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1710 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1712 The reasoning behind this is that an application would not want the
1713 auto chain building to take place if extra chain certificates are
1714 present and it might also want a means of sending no additional
1715 certificates (for example the chain has two certificates and the
1719 *) Add the possibility to build without the ENGINE framework.
1720 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1722 *) Under Win32 gmtime() can return NULL: check return value in
1723 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1726 *) DSA routines: under certain error conditions uninitialized BN objects
1727 could be freed. Solution: make sure initialization is performed early
1728 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1729 Nils Larsch <nla@trustcenter.de> via PR#459)
1732 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1733 checked on reconnect on the client side, therefore session resumption
1734 could still fail with a "ssl session id is different" error. This
1735 behaviour is masked when SSL_OP_ALL is used due to
1736 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1737 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1738 followup to PR #377.
1741 *) IA-32 assembler support enhancements: unified ELF targets, support
1742 for SCO/Caldera platforms, fix for Cygwin shared build.
1745 *) Add support for FreeBSD on sparc64. As a consequence, support for
1746 FreeBSD on non-x86 processors is separate from x86 processors on
1747 the config script, much like the NetBSD support.
1748 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1750 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1752 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1755 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1756 code (06) was taken as the first octet of the session ID and the last
1757 octet was ignored consequently. As a result SSLv2 client side session
1758 caching could not have worked due to the session ID mismatch between
1760 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1764 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1765 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1769 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1770 seems that in spite of existing for more than a year, many application
1771 author have done nothing to provide the necessary callbacks, which
1772 means that this particular engine will not work properly anywhere.
1773 This is a very unfortunate situation which forces us, in the name
1774 of usability, to give the hw_ncipher.c a static lock, which is part
1776 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1777 appear in 0.9.8 or later. We EXPECT application authors to have
1778 dealt properly with this when 0.9.8 is released (unless we actually
1779 make such changes in the libcrypto locking code that changes will
1780 have to be made anyway).
1783 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1784 octets have been read, EOF or an error occurs. Without this change
1785 some truncated ASN1 structures will not produce an error.
1788 *) Disable Heimdal support, since it hasn't been fully implemented.
1789 Still give the possibility to force the use of Heimdal, but with
1790 warnings and a request that patches get sent to openssl-dev.
1793 *) Add the VC-CE target, introduce the WINCE sysname, and add
1794 INSTALL.WCE and appropriate conditionals to make it build.
1795 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1797 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1798 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1799 edit numbers of the version.
1800 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1802 *) Introduce safe string copy and catenation functions
1803 (BUF_strlcpy() and BUF_strlcat()).
1804 [Ben Laurie (CHATS) and Richard Levitte]
1806 *) Avoid using fixed-size buffers for one-line DNs.
1807 [Ben Laurie (CHATS)]
1809 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1810 resizing buffers containing secrets, and use where appropriate.
1811 [Ben Laurie (CHATS)]
1813 *) Avoid using fixed size buffers for configuration file location.
1814 [Ben Laurie (CHATS)]
1816 *) Avoid filename truncation for various CA files.
1817 [Ben Laurie (CHATS)]
1819 *) Use sizeof in preference to magic numbers.
1820 [Ben Laurie (CHATS)]
1822 *) Avoid filename truncation in cert requests.
1823 [Ben Laurie (CHATS)]
1825 *) Add assertions to check for (supposedly impossible) buffer
1827 [Ben Laurie (CHATS)]
1829 *) Don't cache truncated DNS entries in the local cache (this could
1830 potentially lead to a spoofing attack).
1831 [Ben Laurie (CHATS)]
1833 *) Fix various buffers to be large enough for hex/decimal
1834 representations in a platform independent manner.
1835 [Ben Laurie (CHATS)]
1837 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1838 resizing buffers containing secrets, and use where appropriate.
1839 [Ben Laurie (CHATS)]
1841 *) Add BIO_indent() to avoid much slightly worrying code to do
1843 [Ben Laurie (CHATS)]
1845 *) Convert sprintf()/BIO_puts() to BIO_printf().
1846 [Ben Laurie (CHATS)]
1848 *) buffer_gets() could terminate with the buffer only half
1850 [Ben Laurie (CHATS)]
1852 *) Add assertions to prevent user-supplied crypto functions from
1853 overflowing internal buffers by having large block sizes, etc.
1854 [Ben Laurie (CHATS)]
1856 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1858 [Ben Laurie (CHATS)]
1860 *) Eliminate unused copy of key in RC4.
1861 [Ben Laurie (CHATS)]
1863 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1864 [Ben Laurie (CHATS)]
1866 *) Fix off-by-one error in EGD path.
1867 [Ben Laurie (CHATS)]
1869 *) If RANDFILE path is too long, ignore instead of truncating.
1870 [Ben Laurie (CHATS)]
1872 *) Eliminate unused and incorrectly sized X.509 structure
1874 [Ben Laurie (CHATS)]
1876 *) Eliminate unused and dangerous function knumber().
1877 [Ben Laurie (CHATS)]
1879 *) Eliminate unused and dangerous structure, KSSL_ERR.
1880 [Ben Laurie (CHATS)]
1882 *) Protect against overlong session ID context length in an encoded
1883 session object. Since these are local, this does not appear to be
1885 [Ben Laurie (CHATS)]
1887 *) Change from security patch (see 0.9.6e below) that did not affect
1888 the 0.9.6 release series:
1890 Remote buffer overflow in SSL3 protocol - an attacker could
1891 supply an oversized master key in Kerberos-enabled versions.
1893 [Ben Laurie (CHATS)]
1895 *) Change the SSL kerb5 codes to match RFC 2712.
1898 *) Make -nameopt work fully for req and add -reqopt switch.
1899 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1901 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1902 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1904 *) Make sure tests can be performed even if the corresponding algorithms
1905 have been removed entirely. This was also the last step to make
1906 OpenSSL compilable with DJGPP under all reasonable conditions.
1907 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1909 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1910 to allow version independent disabling of normally unselected ciphers,
1911 which may be activated as a side-effect of selecting a single cipher.
1913 (E.g., cipher list string "RSA" enables ciphersuites that are left
1914 out of "ALL" because they do not provide symmetric encryption.
1915 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1916 [Lutz Jaenicke, Bodo Moeller]
1918 *) Add appropriate support for separate platform-dependent build
1919 directories. The recommended way to make a platform-dependent
1920 build directory is the following (tested on Linux), maybe with
1923 # Place yourself outside of the OpenSSL source tree. In
1924 # this example, the environment variable OPENSSL_SOURCE
1925 # is assumed to contain the absolute OpenSSL source directory.
1926 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1927 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1928 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1929 mkdir -p `dirname $F`
1930 ln -s $OPENSSL_SOURCE/$F $F
1933 To be absolutely sure not to disturb the source tree, a "make clean"
1934 is a good thing. If it isn't successfull, don't worry about it,
1935 it probably means the source directory is very clean.
1938 *) Make sure any ENGINE control commands make local copies of string
1939 pointers passed to them whenever necessary. Otherwise it is possible
1940 the caller may have overwritten (or deallocated) the original string
1941 data when a later ENGINE operation tries to use the stored values.
1942 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1944 *) Improve diagnostics in file reading and command-line digests.
1945 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1947 *) Add AES modes CFB and OFB to the object database. Correct an
1948 error in AES-CFB decryption.
1951 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1952 allows existing EVP_CIPHER_CTX structures to be reused after
1953 calling EVP_*Final(). This behaviour is used by encryption
1954 BIOs and some applications. This has the side effect that
1955 applications must explicitly clean up cipher contexts with
1956 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1959 *) Check the values of dna and dnb in bn_mul_recursive before calling
1960 bn_mul_comba (a non zero value means the a or b arrays do not contain
1961 n2 elements) and fallback to bn_mul_normal if either is not zero.
1964 *) Fix escaping of non-ASCII characters when using the -subj option
1965 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1968 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1969 form for "surname", serialNumber has no short form.
1970 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1971 therefore remove "mail" short name for "internet 7".
1972 The OID for unique identifiers in X509 certificates is
1973 x500UniqueIdentifier, not uniqueIdentifier.
1974 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1977 *) Add an "init" command to the ENGINE config module and auto initialize
1978 ENGINEs. Without any "init" command the ENGINE will be initialized
1979 after all ctrl commands have been executed on it. If init=1 the
1980 ENGINE is initailized at that point (ctrls before that point are run
1981 on the uninitialized ENGINE and after on the initialized one). If
1982 init=0 then the ENGINE will not be iniatialized at all.
1985 *) Fix the 'app_verify_callback' interface so that the user-defined
1986 argument is actually passed to the callback: In the
1987 SSL_CTX_set_cert_verify_callback() prototype, the callback
1988 declaration has been changed from
1991 int (*cb)(X509_STORE_CTX *,void *);
1992 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1993 i=s->ctx->app_verify_callback(&ctx)
1994 has been changed into
1995 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1997 To update applications using SSL_CTX_set_cert_verify_callback(),
1998 a dummy argument can be added to their callback functions.
1999 [D. K. Smetters <smetters@parc.xerox.com>]
2001 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2002 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2004 *) Add and OPENSSL_LOAD_CONF define which will cause
2005 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2006 This allows older applications to transparently support certain
2007 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2008 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2009 load the config file and OPENSSL_add_all_algorithms_conf() which will
2010 always load it have also been added.
2013 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2014 Adjust NIDs and EVP layer.
2015 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2017 *) Config modules support in openssl utility.
2019 Most commands now load modules from the config file,
2020 though in a few (such as version) this isn't done
2021 because it couldn't be used for anything.
2023 In the case of ca and req the config file used is
2024 the same as the utility itself: that is the -config
2025 command line option can be used to specify an
2029 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2030 use "openssl_conf" if filename is NULL use default openssl config file.
2033 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2034 config section name. Add a new flag to tolerate a missing config file
2035 and move code to CONF_modules_load_file().
2038 *) Support for crypto accelerator cards from Accelerated Encryption
2039 Processing, www.aep.ie. (Use engine 'aep')
2040 The support was copied from 0.9.6c [engine] and adapted/corrected
2041 to work with the new engine framework.
2042 [AEP Inc. and Richard Levitte]
2044 *) Support for SureWare crypto accelerator cards from Baltimore
2045 Technologies. (Use engine 'sureware')
2046 The support was copied from 0.9.6c [engine] and adapted
2047 to work with the new engine framework.
2050 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2051 make the newer ENGINE framework commands for the CHIL engine work.
2052 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2054 *) Make it possible to produce shared libraries on ReliantUNIX.
2055 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2057 *) Add the configuration target debug-linux-ppro.
2058 Make 'openssl rsa' use the general key loading routines
2059 implemented in apps.c, and make those routines able to
2060 handle the key format FORMAT_NETSCAPE and the variant
2062 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2064 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2065 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2067 *) Add -keyform to rsautl, and document -engine.
2068 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2070 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2071 BIO_R_NO_SUCH_FILE error code rather than the generic
2072 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2075 *) Add new functions
2077 ERR_peek_last_error_line
2078 ERR_peek_last_error_line_data.
2079 These are similar to
2082 ERR_peek_error_line_data,
2083 but report on the latest error recorded rather than the first one
2084 still in the error queue.
2085 [Ben Laurie, Bodo Moeller]
2087 *) default_algorithms option in ENGINE config module. This allows things
2089 default_algorithms = ALL
2090 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2093 *) Prelminary ENGINE config module.
2096 *) New experimental application configuration code.
2099 *) Change the AES code to follow the same name structure as all other
2100 symmetric ciphers, and behave the same way. Move everything to
2101 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2102 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2104 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2105 [Ben Laurie and Theo de Raadt]
2107 *) Add option to output public keys in req command.
2108 [Massimiliano Pala madwolf@openca.org]
2110 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2111 (up to about 10% better than before for P-192 and P-224).
2114 *) New functions/macros
2116 SSL_CTX_set_msg_callback(ctx, cb)
2117 SSL_CTX_set_msg_callback_arg(ctx, arg)
2118 SSL_set_msg_callback(ssl, cb)
2119 SSL_set_msg_callback_arg(ssl, arg)
2121 to request calling a callback function
2123 void cb(int write_p, int version, int content_type,
2124 const void *buf, size_t len, SSL *ssl, void *arg)
2126 whenever a protocol message has been completely received
2127 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2128 protocol version according to which the SSL library interprets
2129 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2130 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2131 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2132 specification (change_cipher_spec(20), alert(21), handshake(22)).
2133 'buf' and 'len' point to the actual message, 'ssl' to the
2134 SSL object, and 'arg' is the application-defined value set by
2135 SSL[_CTX]_set_msg_callback_arg().
2137 'openssl s_client' and 'openssl s_server' have new '-msg' options
2138 to enable a callback that displays all protocol messages.
2141 *) Change the shared library support so shared libraries are built as
2142 soon as the corresponding static library is finished, and thereby get
2143 openssl and the test programs linked against the shared library.
2144 This still only happens when the keyword "shard" has been given to
2145 the configuration scripts.
2147 NOTE: shared library support is still an experimental thing, and
2148 backward binary compatibility is still not guaranteed.
2149 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2151 *) Add support for Subject Information Access extension.
2152 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2154 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2155 additional bytes when new memory had to be allocated, not just
2156 when reusing an existing buffer.
2159 *) New command line and configuration option 'utf8' for the req command.
2160 This allows field values to be specified as UTF8 strings.
2163 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2164 runs for the former and machine-readable output for the latter.
2167 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2168 of the e-mail address in the DN (i.e., it will go into a certificate
2169 extension only). The new configuration file option 'email_in_dn = no'
2170 has the same effect.
2171 [Massimiliano Pala madwolf@openca.org]
2173 *) Change all functions with names starting with des_ to be starting
2174 with DES_ instead. Add wrappers that are compatible with libdes,
2175 but are named _ossl_old_des_*. Finally, add macros that map the
2176 des_* symbols to the corresponding _ossl_old_des_* if libdes
2177 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2178 desired, the des_* symbols will be mapped to DES_*, with one
2181 Since we provide two compatibility mappings, the user needs to
2182 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2183 compatibility is desired. The default (i.e., when that macro
2184 isn't defined) is OpenSSL 0.9.6c compatibility.
2186 There are also macros that enable and disable the support of old
2187 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2188 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2189 are defined, the default will apply: to support the old des routines.
2191 In either case, one must include openssl/des.h to get the correct
2192 definitions. Do not try to just include openssl/des_old.h, that
2195 NOTE: This is a major break of an old API into a new one. Software
2196 authors are encouraged to switch to the DES_ style functions. Some
2197 time in the future, des_old.h and the libdes compatibility functions
2198 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2199 default), and then completely removed.
2202 *) Test for certificates which contain unsupported critical extensions.
2203 If such a certificate is found during a verify operation it is
2204 rejected by default: this behaviour can be overridden by either
2205 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2206 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2207 X509_supported_extension() has also been added which returns 1 if a
2208 particular extension is supported.
2211 *) Modify the behaviour of EVP cipher functions in similar way to digests
2212 to retain compatibility with existing code.
2215 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2216 compatibility with existing code. In particular the 'ctx' parameter does
2217 not have to be to be initialized before the call to EVP_DigestInit() and
2218 it is tidied up after a call to EVP_DigestFinal(). New function
2219 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2220 EVP_MD_CTX_copy() changed to not require the destination to be
2221 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2222 requires the destination to be valid.
2224 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2225 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2228 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2229 so that complete 'Handshake' protocol structures are kept in memory
2230 instead of overwriting 'msg_type' and 'length' with 'body' data.
2233 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2234 [Massimo Santin via Richard Levitte]
2236 *) Major restructuring to the underlying ENGINE code. This includes
2237 reduction of linker bloat, separation of pure "ENGINE" manipulation
2238 (initialisation, etc) from functionality dealing with implementations
2239 of specific crypto iterfaces. This change also introduces integrated
2240 support for symmetric ciphers and digest implementations - so ENGINEs
2241 can now accelerate these by providing EVP_CIPHER and EVP_MD
2242 implementations of their own. This is detailed in crypto/engine/README
2243 as it couldn't be adequately described here. However, there are a few
2244 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2245 were changed in the original introduction of ENGINE code have now
2246 reverted back - the hooking from this code to ENGINE is now a good
2247 deal more passive and at run-time, operations deal directly with
2248 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2249 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2250 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2251 they were not being used by the framework as there is no concept of a
2252 BIGNUM_METHOD and they could not be generalised to the new
2253 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2254 ENGINE_cpy() has been removed as it cannot be consistently defined in
2258 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2261 *) Change mkdef.pl to sort symbols that get the same entry number,
2262 and make sure the automatically generated functions ERR_load_*
2263 become part of libeay.num as well.
2266 *) New function SSL_renegotiate_pending(). This returns true once
2267 renegotiation has been requested (either SSL_renegotiate() call
2268 or HelloRequest/ClientHello receveived from the peer) and becomes
2269 false once a handshake has been completed.
2270 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2271 sends a HelloRequest, but does not ensure that a handshake takes
2272 place. SSL_renegotiate_pending() is useful for checking if the
2273 client has followed the request.)
2276 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2277 By default, clients may request session resumption even during
2278 renegotiation (if session ID contexts permit); with this option,
2279 session resumption is possible only in the first handshake.
2281 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2282 more bits available for options that should not be part of
2283 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2286 *) Add some demos for certificate and certificate request creation.
2289 *) Make maximum certificate chain size accepted from the peer application
2290 settable (SSL*_get/set_max_cert_list()), as proposed by
2291 "Douglas E. Engert" <deengert@anl.gov>.
2294 *) Add support for shared libraries for Unixware-7
2295 (Boyd Lynn Gerber <gerberb@zenez.com>).
2298 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2299 be done prior to destruction. Use this to unload error strings from
2300 ENGINEs that load their own error strings. NB: This adds two new API
2301 functions to "get" and "set" this destroy handler in an ENGINE.
2304 *) Alter all existing ENGINE implementations (except "openssl" and
2305 "openbsd") to dynamically instantiate their own error strings. This
2306 makes them more flexible to be built both as statically-linked ENGINEs
2307 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2308 Also, add stub code to each that makes building them as self-contained
2309 shared-libraries easier (see README.ENGINE).
2312 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2313 implementations into applications that are completely implemented in
2314 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2315 commands that can be used to configure what shared-library to load and
2316 to control aspects of the way it is handled. Also, made an update to
2317 the README.ENGINE file that brings its information up-to-date and
2318 provides some information and instructions on the "dynamic" ENGINE
2319 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2322 *) Make it possible to unload ranges of ERR strings with a new
2323 "ERR_unload_strings" function.
2326 *) Add a copy() function to EVP_MD.
2329 *) Make EVP_MD routines take a context pointer instead of just the
2330 md_data void pointer.
2333 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2334 that the digest can only process a single chunk of data
2335 (typically because it is provided by a piece of
2336 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2337 is only going to provide a single chunk of data, and hence the
2338 framework needn't accumulate the data for oneshot drivers.
2341 *) As with "ERR", make it possible to replace the underlying "ex_data"
2342 functions. This change also alters the storage and management of global
2343 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2344 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2345 index counters. The API functions that use this state have been changed
2346 to take a "class_index" rather than pointers to the class's local STACK
2347 and counter, and there is now an API function to dynamically create new
2348 classes. This centralisation allows us to (a) plug a lot of the
2349 thread-safety problems that existed, and (b) makes it possible to clean
2350 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2351 such data would previously have always leaked in application code and
2352 workarounds were in place to make the memory debugging turn a blind eye
2353 to it. Application code that doesn't use this new function will still
2354 leak as before, but their memory debugging output will announce it now
2355 rather than letting it slide.
2357 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2358 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2359 has a return value to indicate success or failure.
2362 *) Make it possible to replace the underlying "ERR" functions such that the
2363 global state (2 LHASH tables and 2 locks) is only used by the "default"
2364 implementation. This change also adds two functions to "get" and "set"
2365 the implementation prior to it being automatically set the first time
2366 any other ERR function takes place. Ie. an application can call "get",
2367 pass the return value to a module it has just loaded, and that module
2368 can call its own "set" function using that value. This means the
2369 module's "ERR" operations will use (and modify) the error state in the
2370 application and not in its own statically linked copy of OpenSSL code.
2373 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2374 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2375 the operation, and provides a more encapsulated way for external code
2376 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2377 to use these functions rather than manually incrementing the counts.
2379 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2382 *) Add EVP test program.
2385 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2388 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2389 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2390 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2391 These allow a CRL to be built without having to access X509_CRL fields
2392 directly. Modify 'ca' application to use new functions.
2395 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2396 bug workarounds. Rollback attack detection is a security feature.
2397 The problem will only arise on OpenSSL servers when TLSv1 is not
2398 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2399 Software authors not wanting to support TLSv1 will have special reasons
2400 for their choice and can explicitly enable this option.
2401 [Bodo Moeller, Lutz Jaenicke]
2403 *) Rationalise EVP so it can be extended: don't include a union of
2404 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2405 (similar to those existing for EVP_CIPHER_CTX).
2410 EVP_MD_CTX_init(&md); /* new function call */
2411 EVP_DigestInit(&md, EVP_sha1());
2412 EVP_DigestUpdate(&md, in, len);
2413 EVP_DigestFinal(&md, out, NULL);
2414 EVP_MD_CTX_cleanup(&md); /* new function call */
2418 *) Make DES key schedule conform to the usual scheme, as well as
2419 correcting its structure. This means that calls to DES functions
2420 now have to pass a pointer to a des_key_schedule instead of a
2421 plain des_key_schedule (which was actually always a pointer
2424 des_key_schedule ks;
2426 des_set_key_checked(..., &ks);
2427 des_ncbc_encrypt(..., &ks, ...);
2429 (Note that a later change renames 'des_...' into 'DES_...'.)
2432 *) Initial reduction of linker bloat: the use of some functions, such as
2433 PEM causes large amounts of unused functions to be linked in due to
2434 poor organisation. For example pem_all.c contains every PEM function
2435 which has a knock on effect of linking in large amounts of (unused)
2436 ASN1 code. Grouping together similar functions and splitting unrelated
2437 functions prevents this.
2440 *) Cleanup of EVP macros.
2443 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2444 correct _ecb suffix.
2447 *) Add initial OCSP responder support to ocsp application. The
2448 revocation information is handled using the text based index
2449 use by the ca application. The responder can either handle
2450 requests generated internally, supplied in files (for example
2451 via a CGI script) or using an internal minimal server.
2454 *) Add configuration choices to get zlib compression for TLS.
2457 *) Changes to Kerberos SSL for RFC 2712 compliance:
2458 1. Implemented real KerberosWrapper, instead of just using
2459 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2460 2. Implemented optional authenticator field of KerberosWrapper.
2462 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2463 and authenticator structs; see crypto/krb5/.
2465 Generalized Kerberos calls to support multiple Kerberos libraries.
2466 [Vern Staats <staatsvr@asc.hpc.mil>,
2467 Jeffrey Altman <jaltman@columbia.edu>
2468 via Richard Levitte]
2470 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2471 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2472 values for each of the key sizes rather than having just
2473 parameters (and 'speed' generating keys each time).
2476 *) Speed up EVP routines.
2479 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2480 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2481 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2482 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2484 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2485 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2486 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2489 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2491 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2494 *) Added the OS2-EMX target.
2495 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2497 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2498 to support NCONF routines in extension code. New function CONF_set_nconf()
2499 to allow functions which take an NCONF to also handle the old LHASH
2500 structure: this means that the old CONF compatible routines can be
2501 retained (in particular wrt extensions) without having to duplicate the
2502 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2505 *) Enhance the general user interface with mechanisms for inner control
2506 and with possibilities to have yes/no kind of prompts.
2509 *) Change all calls to low level digest routines in the library and
2510 applications to use EVP. Add missing calls to HMAC_cleanup() and
2511 don't assume HMAC_CTX can be copied using memcpy().
2512 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2514 *) Add the possibility to control engines through control names but with
2515 arbitrary arguments instead of just a string.
2516 Change the key loaders to take a UI_METHOD instead of a callback
2517 function pointer. NOTE: this breaks binary compatibility with earlier
2518 versions of OpenSSL [engine].
2519 Adapt the nCipher code for these new conditions and add a card insertion
2523 *) Enhance the general user interface with mechanisms to better support
2524 dialog box interfaces, application-defined prompts, the possibility
2525 to use defaults (for example default passwords from somewhere else)
2526 and interrupts/cancellations.
2529 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2530 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2533 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2534 tidy up some unnecessarily weird code in 'sk_new()').
2535 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2537 *) Change the key loading routines for ENGINEs to use the same kind
2538 callback (pem_password_cb) as all other routines that need this
2542 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2543 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2544 than this minimum value is recommended.
2547 *) New random seeder for OpenVMS, using the system process statistics
2548 that are easily reachable.
2551 *) Windows apparently can't transparently handle global
2552 variables defined in DLLs. Initialisations such as:
2554 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2556 wont compile. This is used by the any applications that need to
2557 declare their own ASN1 modules. This was fixed by adding the option
2558 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2559 needed for static libraries under Win32.
2562 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2563 setting of purpose and trust fields. New X509_STORE trust and
2564 purpose functions and tidy up setting in other SSL functions.
2567 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2568 structure. These are inherited by X509_STORE_CTX when it is
2569 initialised. This allows various defaults to be set in the
2570 X509_STORE structure (such as flags for CRL checking and custom
2571 purpose or trust settings) for functions which only use X509_STORE_CTX
2572 internally such as S/MIME.
2574 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2575 trust settings if they are not set in X509_STORE. This allows X509_STORE
2576 purposes and trust (in S/MIME for example) to override any set by default.
2578 Add command line options for CRL checking to smime, s_client and s_server
2582 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2583 are set then the CRL is looked up in the X509_STORE structure and
2584 its validity and signature checked, then if the certificate is found
2585 in the CRL the verify fails with a revoked error.
2587 Various new CRL related callbacks added to X509_STORE_CTX structure.
2589 Command line options added to 'verify' application to support this.
2591 This needs some additional work, such as being able to handle multiple
2592 CRLs with different times, extension based lookup (rather than just
2593 by subject name) and ultimately more complete V2 CRL extension
2597 *) Add a general user interface API (crypto/ui/). This is designed
2598 to replace things like des_read_password and friends (backward
2599 compatibility functions using this new API are provided).
2600 The purpose is to remove prompting functions from the DES code
2601 section as well as provide for prompting through dialog boxes in
2602 a window system and the like.
2605 *) Add "ex_data" support to ENGINE so implementations can add state at a
2606 per-structure level rather than having to store it globally.
2609 *) Make it possible for ENGINE structures to be copied when retrieved by
2610 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2611 This causes the "original" ENGINE structure to act like a template,
2612 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2613 operational state can be localised to each ENGINE structure, despite the
2614 fact they all share the same "methods". New ENGINE structures returned in
2615 this case have no functional references and the return value is the single
2616 structural reference. This matches the single structural reference returned
2617 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2621 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2622 needs to match any other type at all we need to manually clear the
2626 *) Changes to the "openssl engine" utility to include;
2627 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2628 about an ENGINE's available control commands.
2629 - executing control commands from command line arguments using the
2630 '-pre' and '-post' switches. '-post' is only used if '-t' is
2631 specified and the ENGINE is successfully initialised. The syntax for
2632 the individual commands are colon-separated, for example;
2633 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2636 *) New dynamic control command support for ENGINEs. ENGINEs can now
2637 declare their own commands (numbers), names (strings), descriptions,
2638 and input types for run-time discovery by calling applications. A
2639 subset of these commands are implicitly classed as "executable"
2640 depending on their input type, and only these can be invoked through
2641 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2642 can be based on user input, config files, etc). The distinction is
2643 that "executable" commands cannot return anything other than a boolean
2644 result and can only support numeric or string input, whereas some
2645 discoverable commands may only be for direct use through
2646 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2647 pointers, or other custom uses. The "executable" commands are to
2648 support parameterisations of ENGINE behaviour that can be
2649 unambiguously defined by ENGINEs and used consistently across any
2650 OpenSSL-based application. Commands have been added to all the
2651 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2652 control over shared-library paths without source code alterations.
2655 *) Changed all ENGINE implementations to dynamically allocate their
2656 ENGINEs rather than declaring them statically. Apart from this being
2657 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2658 this also allows the implementations to compile without using the
2659 internal engine_int.h header.
2662 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2663 'const' value. Any code that should be able to modify a RAND_METHOD
2664 should already have non-const pointers to it (ie. they should only
2665 modify their own ones).
2668 *) Made a variety of little tweaks to the ENGINE code.
2669 - "atalla" and "ubsec" string definitions were moved from header files
2670 to C code. "nuron" string definitions were placed in variables
2671 rather than hard-coded - allowing parameterisation of these values
2672 later on via ctrl() commands.
2673 - Removed unused "#if 0"'d code.
2674 - Fixed engine list iteration code so it uses ENGINE_free() to release
2675 structural references.
2676 - Constified the RAND_METHOD element of ENGINE structures.
2677 - Constified various get/set functions as appropriate and added
2678 missing functions (including a catch-all ENGINE_cpy that duplicates
2679 all ENGINE values onto a new ENGINE except reference counts/state).
2680 - Removed NULL parameter checks in get/set functions. Setting a method
2681 or function to NULL is a way of cancelling out a previously set
2682 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2683 and doesn't justify the extra error symbols and code.
2684 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2685 flags from engine_int.h to engine.h.
2686 - Changed prototypes for ENGINE handler functions (init(), finish(),
2687 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2690 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2691 to the algorithm using long division. The binary algorithm can be
2692 used only if the modulus is odd. On 32-bit systems, it is faster
2693 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2694 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2695 up to 450 bits. In 64-bit environments, the binary algorithm
2696 appears to be advantageous for much longer moduli; here we use it
2697 for moduli up to 2048 bits.
2700 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2701 could not support the combine flag in choice fields.
2704 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2705 extensions from a certificate request to the certificate.
2708 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2709 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2710 file: this allows the display of the certificate about to be
2711 signed to be customised, to allow certain fields to be included
2712 or excluded and extension details. The old system didn't display
2713 multicharacter strings properly, omitted fields not in the policy
2714 and couldn't display additional details such as extensions.
2717 *) Function EC_POINTs_mul for multiple scalar multiplication
2718 of an arbitrary number of elliptic curve points
2719 \sum scalars[i]*points[i],
2720 optionally including the generator defined for the EC_GROUP:
2721 scalar*generator + \sum scalars[i]*points[i].
2723 EC_POINT_mul is a simple wrapper function for the typical case
2724 that the point list has just one item (besides the optional
2728 *) First EC_METHODs for curves over GF(p):
2730 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2731 operations and provides various method functions that can also
2732 operate with faster implementations of modular arithmetic.
2734 EC_GFp_mont_method() reuses most functions that are part of
2735 EC_GFp_simple_method, but uses Montgomery arithmetic.
2737 [Bodo Moeller; point addition and point doubling
2738 implementation directly derived from source code provided by
2739 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2741 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2742 crypto/ec/ec_lib.c):
2744 Curves are EC_GROUP objects (with an optional group generator)
2745 based on EC_METHODs that are built into the library.
2747 Points are EC_POINT objects based on EC_GROUP objects.
2749 Most of the framework would be able to handle curves over arbitrary
2750 finite fields, but as there are no obvious types for fields other
2751 than GF(p), some functions are limited to that for now.
2754 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2755 that the file contains a complete HTTP response.
2758 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2759 change the def and num file printf format specifier from "%-40sXXX"
2760 to "%-39s XXX". The latter will always guarantee a space after the
2761 field while the former will cause them to run together if the field
2762 is 40 of more characters long.
2765 *) Constify the cipher and digest 'method' functions and structures
2766 and modify related functions to take constant EVP_MD and EVP_CIPHER
2770 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2771 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2774 *) Modify EVP_Digest*() routines so they now return values. Although the
2775 internal software routines can never fail additional hardware versions
2779 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2781 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2782 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2785 ERR_R_NESTED_ASN1_ERROR
2787 ERR_R_MISSING_ASN1_EOS
2788 were 4 .. 9, conflicting with
2789 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2791 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2792 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2794 Add new error code 'ERR_R_INTERNAL_ERROR'.
2797 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2801 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2802 sets the subject name for a new request or supersedes the
2803 subject name in a given request. Formats that can be parsed are
2804 'CN=Some Name, OU=myOU, C=IT'
2806 'CN=Some Name/OU=myOU/C=IT'.
2808 Add options '-batch' and '-verbose' to 'openssl req'.
2809 [Massimiliano Pala <madwolf@hackmasters.net>]
2811 *) Introduce the possibility to access global variables through
2812 functions on platform were that's the best way to handle exporting
2813 global variables in shared libraries. To enable this functionality,
2814 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2815 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2816 is normally done by Configure or something similar).
2818 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2819 in the source file (foo.c) like this:
2821 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2822 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2824 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2825 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2827 OPENSSL_DECLARE_GLOBAL(int,foo);
2828 #define foo OPENSSL_GLOBAL_REF(foo)
2829 OPENSSL_DECLARE_GLOBAL(double,bar);
2830 #define bar OPENSSL_GLOBAL_REF(bar)
2832 The #defines are very important, and therefore so is including the
2833 header file everywhere where the defined globals are used.
2835 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2836 of ASN.1 items, but that structure is a bit different.
2838 The largest change is in util/mkdef.pl which has been enhanced with
2839 better and easier to understand logic to choose which symbols should
2840 go into the Windows .def files as well as a number of fixes and code
2841 cleanup (among others, algorithm keywords are now sorted
2842 lexicographically to avoid constant rewrites).
2845 *) In BN_div() keep a copy of the sign of 'num' before writing the
2846 result to 'rm' because if rm==num the value will be overwritten
2847 and produce the wrong result if 'num' is negative: this caused
2848 problems with BN_mod() and BN_nnmod().
2851 *) Function OCSP_request_verify(). This checks the signature on an
2852 OCSP request and verifies the signer certificate. The signer
2853 certificate is just checked for a generic purpose and OCSP request
2857 *) Add OCSP_check_validity() function to check the validity of OCSP
2858 responses. OCSP responses are prepared in real time and may only
2859 be a few seconds old. Simply checking that the current time lies
2860 between thisUpdate and nextUpdate max reject otherwise valid responses
2861 caused by either OCSP responder or client clock inaccuracy. Instead
2862 we allow thisUpdate and nextUpdate to fall within a certain period of
2863 the current time. The age of the response can also optionally be
2864 checked. Two new options -validity_period and -status_age added to
2868 *) If signature or public key algorithm is unrecognized print out its
2869 OID rather that just UNKNOWN.
2872 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2873 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2874 ID to be generated from the issuer certificate alone which can then be
2875 passed to OCSP_id_issuer_cmp().
2878 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2879 ASN1 modules to export functions returning ASN1_ITEM pointers
2880 instead of the ASN1_ITEM structures themselves. This adds several
2881 new macros which allow the underlying ASN1 function/structure to
2882 be accessed transparently. As a result code should not use ASN1_ITEM
2883 references directly (such as &X509_it) but instead use the relevant
2884 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2885 use of the new ASN1 code on platforms where exporting structures
2886 is problematical (for example in shared libraries) but exporting
2887 functions returning pointers to structures is not.
2890 *) Add support for overriding the generation of SSL/TLS session IDs.
2891 These callbacks can be registered either in an SSL_CTX or per SSL.
2892 The purpose of this is to allow applications to control, if they wish,
2893 the arbitrary values chosen for use as session IDs, particularly as it
2894 can be useful for session caching in multiple-server environments. A
2895 command-line switch for testing this (and any client code that wishes
2896 to use such a feature) has been added to "s_server".
2897 [Geoff Thorpe, Lutz Jaenicke]
2899 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2900 of the form '#if defined(...) || defined(...) || ...' and
2901 '#if !defined(...) && !defined(...) && ...'. This also avoids
2902 the growing number of special cases it was previously handling.
2905 *) Make all configuration macros available for application by making
2906 sure they are available in opensslconf.h, by giving them names starting
2907 with "OPENSSL_" to avoid conflicts with other packages and by making
2908 sure e_os2.h will cover all platform-specific cases together with
2910 Additionally, it is now possible to define configuration/platform-
2911 specific names (called "system identities"). In the C code, these
2912 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2913 macro with the name beginning with "OPENSSL_SYS_", which is determined
2914 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2918 *) New option -set_serial to 'req' and 'x509' this allows the serial
2919 number to use to be specified on the command line. Previously self
2920 signed certificates were hard coded with serial number 0 and the
2921 CA options of 'x509' had to use a serial number in a file which was
2925 *) New options to 'ca' utility to support V2 CRL entry extensions.
2926 Currently CRL reason, invalidity date and hold instruction are
2927 supported. Add new CRL extensions to V3 code and some new objects.
2930 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2931 disable standard block padding (aka PKCS#5 padding) in the EVP
2932 API, which was previously mandatory. This means that the data is
2933 not padded in any way and so the total length much be a multiple
2934 of the block size, otherwise an error occurs.
2937 *) Initial (incomplete) OCSP SSL support.
2940 *) New function OCSP_parse_url(). This splits up a URL into its host,
2941 port and path components: primarily to parse OCSP URLs. New -url
2942 option to ocsp utility.
2945 *) New nonce behavior. The return value of OCSP_check_nonce() now
2946 reflects the various checks performed. Applications can decide
2947 whether to tolerate certain situations such as an absent nonce
2948 in a response when one was present in a request: the ocsp application
2949 just prints out a warning. New function OCSP_add1_basic_nonce()
2950 this is to allow responders to include a nonce in a response even if
2951 the request is nonce-less.
2954 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2955 skipped when using openssl x509 multiple times on a single input file,
2956 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2959 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2960 set string type: to handle setting ASN1_TIME structures. Fix ca
2961 utility to correctly initialize revocation date of CRLs.
2964 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2965 the clients preferred ciphersuites and rather use its own preferences.
2966 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2967 Internet Explorer by ensuring unchanged hash method during stepup.
2968 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2971 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2972 to aes and add a new 'exist' option to print out symbols that don't
2976 *) Additional options to ocsp utility to allow flags to be set and
2977 additional certificates supplied.
2980 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2981 OCSP client a number of certificate to only verify the response
2985 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2986 handle the new API. Currently only ECB, CBC modes supported. Add new
2989 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2990 Encryption Standard (AES) Ciphersuites for Transport Layer
2991 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2992 not enabled by default and were not part of the "ALL" ciphersuite
2993 alias because they were not yet official; they could be
2994 explicitly requested by specifying the "AESdraft" ciphersuite
2995 group alias. In the final release of OpenSSL 0.9.7, the group
2996 alias is called "AES" and is part of "ALL".)
2997 [Ben Laurie, Steve Henson, Bodo Moeller]
2999 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3000 request to response.
3003 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3004 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3005 extract information from a certificate request. OCSP_response_create()
3006 creates a response and optionally adds a basic response structure.
3007 OCSP_basic_add1_status() adds a complete single response to a basic
3008 response and returns the OCSP_SINGLERESP structure just added (to allow
3009 extensions to be included for example). OCSP_basic_add1_cert() adds a
3010 certificate to a basic response and OCSP_basic_sign() signs a basic
3011 response with various flags. New helper functions ASN1_TIME_check()
3012 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3013 (converts ASN1_TIME to GeneralizedTime).
3016 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3017 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3018 structure from a certificate. X509_pubkey_digest() digests the public_key
3019 contents: this is used in various key identifiers.
3022 *) Make sk_sort() tolerate a NULL argument.
3023 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3025 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3026 passed by the function are trusted implicitly. If any of them signed the
3027 response then it is assumed to be valid and is not verified.
3030 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3031 to data. This was previously part of the PKCS7 ASN1 code. This
3032 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3033 [Steve Henson, reported by Kenneth R. Robinette
3034 <support@securenetterm.com>]
3036 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3037 routines: without these tracing memory leaks is very painful.
3038 Fix leaks in PKCS12 and PKCS7 routines.
3041 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3042 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3043 effectively meant GeneralizedTime would never be used. Now it
3044 is initialised to -1 but X509_time_adj() now has to check the value
3045 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3046 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3047 [Steve Henson, reported by Kenneth R. Robinette
3048 <support@securenetterm.com>]
3050 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3051 result in a zero length in the ASN1_INTEGER structure which was
3052 not consistent with the structure when d2i_ASN1_INTEGER() was used
3053 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3054 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3055 where it did not print out a minus for negative ASN1_INTEGER.
3058 *) Add summary printout to ocsp utility. The various functions which
3059 convert status values to strings have been renamed to:
3060 OCSP_response_status_str(), OCSP_cert_status_str() and
3061 OCSP_crl_reason_str() and are no longer static. New options
3062 to verify nonce values and to disable verification. OCSP response
3063 printout format cleaned up.
3066 *) Add additional OCSP certificate checks. These are those specified
3067 in RFC2560. This consists of two separate checks: the CA of the
3068 certificate being checked must either be the OCSP signer certificate
3069 or the issuer of the OCSP signer certificate. In the latter case the
3070 OCSP signer certificate must contain the OCSP signing extended key
3071 usage. This check is performed by attempting to match the OCSP
3072 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3073 in the OCSP_CERTID structures of the response.
3076 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3077 and related routines. This uses the standard OpenSSL certificate
3078 verify routines to perform initial checks (just CA validity) and
3079 to obtain the certificate chain. Then additional checks will be
3080 performed on the chain. Currently the root CA is checked to see
3081 if it is explicitly trusted for OCSP signing. This is used to set
3082 a root CA as a global signing root: that is any certificate that
3083 chains to that CA is an acceptable OCSP signing certificate.
3086 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3087 extensions from a separate configuration file.
3088 As when reading extensions from the main configuration file,
3089 the '-extensions ...' option may be used for specifying the
3091 [Massimiliano Pala <madwolf@comune.modena.it>]
3093 *) New OCSP utility. Allows OCSP requests to be generated or
3094 read. The request can be sent to a responder and the output
3095 parsed, outputed or printed in text form. Not complete yet:
3096 still needs to check the OCSP response validity.
3099 *) New subcommands for 'openssl ca':
3100 'openssl ca -status <serial>' prints the status of the cert with
3101 the given serial number (according to the index file).
3102 'openssl ca -updatedb' updates the expiry status of certificates
3104 [Massimiliano Pala <madwolf@comune.modena.it>]
3106 *) New '-newreq-nodes' command option to CA.pl. This is like
3107 '-newreq', but calls 'openssl req' with the '-nodes' option
3108 so that the resulting key is not encrypted.
3109 [Damien Miller <djm@mindrot.org>]
3111 *) New configuration for the GNU Hurd.
3112 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3114 *) Initial code to implement OCSP basic response verify. This
3115 is currently incomplete. Currently just finds the signer's
3116 certificate and verifies the signature on the response.
3119 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3120 value of OPENSSLDIR. This is available via the new '-d' option
3121 to 'openssl version', and is also included in 'openssl version -a'.
3124 *) Allowing defining memory allocation callbacks that will be given
3125 file name and line number information in additional arguments
3126 (a const char* and an int). The basic functionality remains, as
3127 well as the original possibility to just replace malloc(),
3128 realloc() and free() by functions that do not know about these
3129 additional arguments. To register and find out the current
3130 settings for extended allocation functions, the following
3131 functions are provided:
3133 CRYPTO_set_mem_ex_functions
3134 CRYPTO_set_locked_mem_ex_functions
3135 CRYPTO_get_mem_ex_functions
3136 CRYPTO_get_locked_mem_ex_functions
3138 These work the same way as CRYPTO_set_mem_functions and friends.
3139 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3140 extended allocation function is enabled.
3141 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3142 a conventional allocation function is enabled.
3143 [Richard Levitte, Bodo Moeller]
3145 *) Finish off removing the remaining LHASH function pointer casts.
3146 There should no longer be any prototype-casting required when using
3147 the LHASH abstraction, and any casts that remain are "bugs". See
3148 the callback types and macros at the head of lhash.h for details
3149 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3152 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3153 If /dev/[u]random devices are not available or do not return enough
3154 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3156 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3157 /etc/entropy will be queried once each in this sequence, quering stops
3158 when enough entropy was collected without querying more sockets.
3161 *) Change the Unix RAND_poll() variant to be able to poll several
3162 random devices, as specified by DEVRANDOM, until a sufficient amount
3163 of data has been collected. We spend at most 10 ms on each file
3164 (select timeout) and read in non-blocking mode. DEVRANDOM now
3165 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3166 (previously it was just the string "/dev/urandom"), so on typical
3167 platforms the 10 ms delay will never occur.
3168 Also separate out the Unix variant to its own file, rand_unix.c.
3169 For VMS, there's a currently-empty rand_vms.c.
3172 *) Move OCSP client related routines to ocsp_cl.c. These
3173 provide utility functions which an application needing
3174 to issue a request to an OCSP responder and analyse the
3175 response will typically need: as opposed to those which an
3176 OCSP responder itself would need which will be added later.
3178 OCSP_request_sign() signs an OCSP request with an API similar
3179 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3180 response. OCSP_response_get1_basic() extracts basic response
3181 from response. OCSP_resp_find_status(): finds and extracts status
3182 information from an OCSP_CERTID structure (which will be created
3183 when the request structure is built). These are built from lower
3184 level functions which work on OCSP_SINGLERESP structures but
3185 wont normally be used unless the application wishes to examine
3186 extensions in the OCSP response for example.
3188 Replace nonce routines with a pair of functions.
3189 OCSP_request_add1_nonce() adds a nonce value and optionally
3190 generates a random value. OCSP_check_nonce() checks the
3191 validity of the nonce in an OCSP response.
3194 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3195 This doesn't copy the supplied OCSP_CERTID and avoids the
3196 need to free up the newly created id. Change return type
3197 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3198 This can then be used to add extensions to the request.
3199 Deleted OCSP_request_new(), since most of its functionality
3200 is now in OCSP_REQUEST_new() (and the case insensitive name
3201 clash) apart from the ability to set the request name which
3202 will be added elsewhere.
3205 *) Update OCSP API. Remove obsolete extensions argument from
3206 various functions. Extensions are now handled using the new
3207 OCSP extension code. New simple OCSP HTTP function which
3208 can be used to send requests and parse the response.
3211 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3212 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3213 uses the special reorder version of SET OF to sort the attributes
3214 and reorder them to match the encoded order. This resolves a long
3215 standing problem: a verify on a PKCS7 structure just after signing
3216 it used to fail because the attribute order did not match the
3217 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3218 it uses the received order. This is necessary to tolerate some broken
3219 software that does not order SET OF. This is handled by encoding
3220 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3221 to produce the required SET OF.
3224 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3225 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3226 files to get correct declarations of the ASN.1 item variables.
3229 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3230 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3231 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3232 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3233 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3234 ASN1_ITEM and no wrapper functions.
3237 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3238 replace the old function pointer based I/O routines. Change most of
3239 the *_d2i_bio() and *_d2i_fp() functions to use these.
3242 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3243 lines, recognice more "algorithms" that can be deselected, and make
3244 it complain about algorithm deselection that isn't recognised.
3247 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3248 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3249 to use new functions. Add NO_ASN1_OLD which can be set to remove
3250 some old style ASN1 functions: this can be used to determine if old
3251 code will still work when these eventually go away.
3254 *) New extension functions for OCSP structures, these follow the
3255 same conventions as certificates and CRLs.
3258 *) New function X509V3_add1_i2d(). This automatically encodes and
3259 adds an extension. Its behaviour can be customised with various
3260 flags to append, replace or delete. Various wrappers added for
3261 certifcates and CRLs.
3264 *) Fix to avoid calling the underlying ASN1 print routine when
3265 an extension cannot be parsed. Correct a typo in the
3266 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3269 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3270 entries for variables.
3273 *) Add functionality to apps/openssl.c for detecting locking
3274 problems: As the program is single-threaded, all we have
3275 to do is register a locking callback using an array for
3276 storing which locks are currently held by the program.
3279 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3280 SSL_get_ex_data_X509_STORE_idx(), which is used in
3281 ssl_verify_cert_chain() and thus can be called at any time
3282 during TLS/SSL handshakes so that thread-safety is essential.
3283 Unfortunately, the ex_data design is not at all suited
3284 for multi-threaded use, so it probably should be abolished.
3287 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3288 [Broadcom, tweaked and integrated by Geoff Thorpe]
3290 *) Move common extension printing code to new function
3291 X509V3_print_extensions(). Reorganise OCSP print routines and
3292 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3295 *) New function X509_signature_print() to remove duplication in some
3299 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3300 set (this was treated exactly the same as SET OF previously). This
3301 is used to reorder the STACK representing the structure to match the
3302 encoding. This will be used to get round a problem where a PKCS7
3303 structure which was signed could not be verified because the STACK
3304 order did not reflect the encoded order.
3307 *) Reimplement the OCSP ASN1 module using the new code.
3310 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3311 for its ASN1 operations. The old style function pointers still exist
3312 for now but they will eventually go away.
3315 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3316 completely replaces the old ASN1 functionality with a table driven
3317 encoder and decoder which interprets an ASN1_ITEM structure describing
3318 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3319 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3320 has also been converted to the new form.
3323 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3324 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3325 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3326 for negative moduli.
3329 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3330 of not touching the result's sign bit.
3333 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3337 *) Changed the LHASH code to use prototypes for callbacks, and created
3338 macros to declare and implement thin (optionally static) functions
3339 that provide type-safety and avoid function pointer casting for the
3340 type-specific callbacks.
3343 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3345 [Veers Staats <staatsvr@asc.hpc.mil>,
3346 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3348 *) Reformat the FAQ so the different questions and answers can be divided
3349 in sections depending on the subject.
3352 *) Have the zlib compression code load ZLIB.DLL dynamically under
3356 *) New function BN_mod_sqrt for computing square roots modulo a prime
3357 (using the probabilistic Tonelli-Shanks algorithm unless
3358 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3359 be handled deterministically).
3360 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3362 *) Make BN_mod_inverse faster by explicitly handling small quotients
3363 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3364 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3367 *) New function BN_kronecker.
3370 *) Fix BN_gcd so that it works on negative inputs; the result is
3371 positive unless both parameters are zero.
3372 Previously something reasonably close to an infinite loop was
3373 possible because numbers could be growing instead of shrinking
3374 in the implementation of Euclid's algorithm.
3377 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3378 sign of the number in question.
3380 Fix BN_is_word(a,w) to work correctly for w == 0.
3382 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3383 because its test if the absolute value of 'a' equals 'w'.
3384 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3385 it exists mostly for use in the implementations of BN_is_zero(),
3386 BN_is_one(), and BN_is_word().
3389 *) New function BN_swap.
3392 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3393 the exponentiation functions are more likely to produce reasonable
3394 results on negative inputs.
3397 *) Change BN_mod_mul so that the result is always non-negative.
3398 Previously, it could be negative if one of the factors was negative;
3399 I don't think anyone really wanted that behaviour.
3402 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3403 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3404 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3405 and add new functions:
3414 BN_mod_lshift1_quick
3418 These functions always generate non-negative results.
3420 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3421 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3423 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3424 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3425 be reduced modulo m.
3426 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3429 The following entry accidentily appeared in the CHANGES file
3430 distributed with OpenSSL 0.9.7. The modifications described in
3431 it do *not* apply to OpenSSL 0.9.7.
3433 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3434 was actually never needed) and in BN_mul(). The removal in BN_mul()
3435 required a small change in bn_mul_part_recursive() and the addition
3436 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3437 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3438 bn_sub_words() and bn_add_words() except they take arrays with
3443 *) In 'openssl passwd', verify passwords read from the terminal
3444 unless the '-salt' option is used (which usually means that
3445 verification would just waste user's time since the resulting
3446 hash is going to be compared with some given password hash)
3447 or the new '-noverify' option is used.
3449 This is an incompatible change, but it does not affect
3450 non-interactive use of 'openssl passwd' (passwords on the command
3451 line, '-stdin' option, '-in ...' option) and thus should not
3455 *) Remove all references to RSAref, since there's no more need for it.
3458 *) Make DSO load along a path given through an environment variable
3459 (SHLIB_PATH) with shl_load().
3462 *) Constify the ENGINE code as a result of BIGNUM constification.
3463 Also constify the RSA code and most things related to it. In a
3464 few places, most notable in the depth of the ASN.1 code, ugly
3465 casts back to non-const were required (to be solved at a later
3469 *) Make it so the openssl application has all engines loaded by default.
3472 *) Constify the BIGNUM routines a little more.
3475 *) Add the following functions:
3477 ENGINE_load_cswift()
3479 ENGINE_load_atalla()
3481 ENGINE_load_builtin_engines()
3483 That way, an application can itself choose if external engines that
3484 are built-in in OpenSSL shall ever be used or not. The benefit is
3485 that applications won't have to be linked with libdl or other dso
3486 libraries unless it's really needed.
3488 Changed 'openssl engine' to load all engines on demand.
3489 Changed the engine header files to avoid the duplication of some
3490 declarations (they differed!).
3493 *) 'openssl engine' can now list capabilities.
3496 *) Better error reporting in 'openssl engine'.
3499 *) Never call load_dh_param(NULL) in s_server.
3502 *) Add engine application. It can currently list engines by name and
3503 identity, and test if they are actually available.
3506 *) Improve RPM specification file by forcing symbolic linking and making
3507 sure the installed documentation is also owned by root.root.
3508 [Damien Miller <djm@mindrot.org>]
3510 *) Give the OpenSSL applications more possibilities to make use of
3511 keys (public as well as private) handled by engines.
3514 *) Add OCSP code that comes from CertCo.
3517 *) Add VMS support for the Rijndael code.
3520 *) Added untested support for Nuron crypto accelerator.
3523 *) Add support for external cryptographic devices. This code was
3524 previously distributed separately as the "engine" branch.
3525 [Geoff Thorpe, Richard Levitte]
3527 *) Rework the filename-translation in the DSO code. It is now possible to
3528 have far greater control over how a "name" is turned into a filename
3529 depending on the operating environment and any oddities about the
3530 different shared library filenames on each system.
3533 *) Support threads on FreeBSD-elf in Configure.
3536 *) Fix for SHA1 assembly problem with MASM: it produces
3537 warnings about corrupt line number information when assembling
3538 with debugging information. This is caused by the overlapping
3540 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3543 NCONF_get_number() has no error checking at all. As a replacement,
3544 NCONF_get_number_e() is defined (_e for "error checking") and is
3545 promoted strongly. The old NCONF_get_number is kept around for
3546 binary backward compatibility.
3547 Make it possible for methods to load from something other than a BIO,
3548 by providing a function pointer that is given a name instead of a BIO.
3549 For example, this could be used to load configuration data from an
3553 *) Fix for non blocking accept BIOs. Added new I/O special reason
3554 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3555 with non blocking I/O was not possible because no retry code was
3556 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3560 *) Added the beginnings of Rijndael support.
3563 *) Fix for bug in DirectoryString mask setting. Add support for
3564 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3565 to allow certificate printing to more controllable, additional
3566 'certopt' option to 'x509' to allow new printing options to be
3570 *) Clean old EAY MD5 hack from e_os.h.
3573 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3575 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3576 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3577 [Joe Orton, Steve Henson]
3579 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3581 *) Fix additional bug revealed by the NISCC test suite:
3583 Stop bug triggering large recursion when presented with
3584 certain ASN.1 tags (CVE-2003-0851)
3587 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3589 *) Fix various bugs revealed by running the NISCC test suite:
3591 Stop out of bounds reads in the ASN1 code when presented with
3592 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3594 If verify callback ignores invalid public key errors don't try to check
3595 certificate signature with the NULL public key.
3599 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3600 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3604 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3605 extra data after the compression methods not only for TLS 1.0
3606 but also for SSL 3.0 (as required by the specification).
3607 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3609 *) Change X509_certificate_type() to mark the key as exported/exportable
3610 when it's 512 *bits* long, not 512 bytes.
3613 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3615 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3616 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3617 a protocol version number mismatch like a decryption error
3618 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3621 *) Turn on RSA blinding by default in the default implementation
3622 to avoid a timing attack. Applications that don't want it can call
3623 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3624 They would be ill-advised to do so in most cases.
3625 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3627 *) Change RSA blinding code so that it works when the PRNG is not
3628 seeded (in this case, the secret RSA exponent is abused as
3629 an unpredictable seed -- if it is not unpredictable, there
3630 is no point in blinding anyway). Make RSA blinding thread-safe
3631 by remembering the creator's thread ID in rsa->blinding and
3632 having all other threads use local one-time blinding factors
3633 (this requires more computation than sharing rsa->blinding, but
3634 avoids excessive locking; and if an RSA object is not shared
3635 between threads, blinding will still be very fast).
3638 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3640 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3641 via timing by performing a MAC computation even if incorrrect
3642 block cipher padding has been found. This is a countermeasure
3643 against active attacks where the attacker has to distinguish
3644 between bad padding and a MAC verification error. (CVE-2003-0078)
3646 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3647 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3648 Martin Vuagnoux (EPFL, Ilion)]
3650 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3652 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3653 memory from it's contents. This is done with a counter that will
3654 place alternating values in each byte. This can be used to solve
3655 two issues: 1) the removal of calls to memset() by highly optimizing
3656 compilers, and 2) cleansing with other values than 0, since those can
3657 be read through on certain media, for example a swap space on disk.
3660 *) Bugfix: client side session caching did not work with external caching,
3661 because the session->cipher setting was not restored when reloading
3662 from the external cache. This problem was masked, when
3663 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3664 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3667 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3668 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3669 [Zeev Lieber <zeev-l@yahoo.com>]
3671 *) Undo an undocumented change introduced in 0.9.6e which caused
3672 repeated calls to OpenSSL_add_all_ciphers() and
3673 OpenSSL_add_all_digests() to be ignored, even after calling
3677 *) Change the default configuration reader to deal with last line not
3678 being properly terminated.
3681 *) Change X509_NAME_cmp() so it applies the special rules on handling
3682 DN values that are of type PrintableString, as well as RDNs of type
3683 emailAddress where the value has the type ia5String.
3684 [stefank@valicert.com via Richard Levitte]
3686 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3687 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3688 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3689 the bitwise-OR of the two for use by the majority of applications
3690 wanting this behaviour, and update the docs. The documented
3691 behaviour and actual behaviour were inconsistent and had been
3692 changing anyway, so this is more a bug-fix than a behavioural
3694 [Geoff Thorpe, diagnosed by Nadav Har'El]
3696 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3697 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3700 *) Fix initialization code race conditions in
3701 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3702 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3703 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3704 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3705 ssl2_get_cipher_by_char(),
3706 ssl3_get_cipher_by_char().
3707 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3709 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3710 the cached sessions are flushed, as the remove_cb() might use ex_data
3711 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3712 (see [openssl.org #212]).
3713 [Geoff Thorpe, Lutz Jaenicke]
3715 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3716 length, instead of the encoding length to d2i_ASN1_OBJECT.
3719 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3721 *) [In 0.9.6g-engine release:]
3722 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3723 [Lynn Gazis <lgazis@rainbow.com>]
3725 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3727 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3728 and get fix the header length calculation.
3729 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3730 Alon Kantor <alonk@checkpoint.com> (and others),
3733 *) Use proper error handling instead of 'assertions' in buffer
3734 overflow checks added in 0.9.6e. This prevents DoS (the
3735 assertions could call abort()).
3736 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3738 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3740 *) Add various sanity checks to asn1_get_length() to reject
3741 the ASN1 length bytes if they exceed sizeof(long), will appear
3742 negative or the content length exceeds the length of the
3744 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3746 *) Fix cipher selection routines: ciphers without encryption had no flags
3747 for the cipher strength set and where therefore not handled correctly
3748 by the selection routines (PR #130).
3751 *) Fix EVP_dsa_sha macro.
3755 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3756 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3757 that was added in OpenSSL 0.9.6d.
3759 As the countermeasure turned out to be incompatible with some
3760 broken SSL implementations, the new option is part of SSL_OP_ALL.
3761 SSL_OP_ALL is usually employed when compatibility with weird SSL
3762 implementations is desired (e.g. '-bugs' option to 's_client' and
3763 's_server'), so the new option is automatically set in many
3767 *) Changes in security patch:
3769 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3770 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3771 Air Force Materiel Command, USAF, under agreement number
3774 *) Add various sanity checks to asn1_get_length() to reject
3775 the ASN1 length bytes if they exceed sizeof(long), will appear
3776 negative or the content length exceeds the length of the
3777 supplied buffer. (CVE-2002-0659)
3778 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3780 *) Assertions for various potential buffer overflows, not known to
3782 [Ben Laurie (CHATS)]
3784 *) Various temporary buffers to hold ASCII versions of integers were
3785 too small for 64 bit platforms. (CVE-2002-0655)
3786 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3788 *) Remote buffer overflow in SSL3 protocol - an attacker could
3789 supply an oversized session ID to a client. (CVE-2002-0656)
3790 [Ben Laurie (CHATS)]
3792 *) Remote buffer overflow in SSL2 protocol - an attacker could
3793 supply an oversized client master key. (CVE-2002-0656)
3794 [Ben Laurie (CHATS)]
3796 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3798 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3799 encoded as NULL) with id-dsa-with-sha1.
3800 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3802 *) Check various X509_...() return values in apps/req.c.
3803 [Nils Larsch <nla@trustcenter.de>]
3805 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3806 an end-of-file condition would erronously be flagged, when the CRLF
3807 was just at the end of a processed block. The bug was discovered when
3808 processing data through a buffering memory BIO handing the data to a
3809 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3810 <ptsekov@syntrex.com> and Nedelcho Stanev.
3813 *) Implement a countermeasure against a vulnerability recently found
3814 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3815 before application data chunks to avoid the use of known IVs
3816 with data potentially chosen by the attacker.
3819 *) Fix length checks in ssl3_get_client_hello().
3822 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3823 to prevent ssl3_read_internal() from incorrectly assuming that
3824 ssl3_read_bytes() found application data while handshake
3825 processing was enabled when in fact s->s3->in_read_app_data was
3826 merely automatically cleared during the initial handshake.
3827 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3829 *) Fix object definitions for Private and Enterprise: they were not
3830 recognized in their shortname (=lowercase) representation. Extend
3831 obj_dat.pl to issue an error when using undefined keywords instead
3832 of silently ignoring the problem (Svenning Sorensen
3833 <sss@sss.dnsalias.net>).
3836 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3837 generators, i.e. generators other than 2 and 5. (Previously, the
3838 code did not properly initialise the 'add' and 'rem' values to
3839 BN_generate_prime().)
3841 In the new general case, we do not insist that 'generator' is
3842 actually a primitive root: This requirement is rather pointless;
3843 a generator of the order-q subgroup is just as good, if not
3847 *) Map new X509 verification errors to alerts. Discovered and submitted by
3848 Tom Wu <tom@arcot.com>.
3851 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3852 returning non-zero before the data has been completely received
3853 when using non-blocking I/O.
3854 [Bodo Moeller; problem pointed out by John Hughes]
3856 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3857 [Ben Laurie, Lutz Jaenicke]
3859 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3860 Yoram Zahavi <YoramZ@gilian.com>).
3863 *) Add information about CygWin 1.3 and on, and preserve proper
3864 configuration for the versions before that.
3865 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3867 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3868 check whether we deal with a copy of a session and do not delete from
3869 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3870 <izhar@checkpoint.com>.
3873 *) Do not store session data into the internal session cache, if it
3874 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3875 flag is set). Proposed by Aslam <aslam@funk.com>.
3878 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3882 *) [In 0.9.6d-engine release:]
3883 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3884 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3886 *) Add the configuration target linux-s390x.
3887 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3889 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3890 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3891 variable as an indication that a ClientHello message has been
3892 received. As the flag value will be lost between multiple
3893 invocations of ssl3_accept when using non-blocking I/O, the
3894 function may not be aware that a handshake has actually taken
3895 place, thus preventing a new session from being added to the
3898 To avoid this problem, we now set s->new_session to 2 instead of
3899 using a local variable.
3900 [Lutz Jaenicke, Bodo Moeller]
3902 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3903 if the SSL_R_LENGTH_MISMATCH error is detected.
3904 [Geoff Thorpe, Bodo Moeller]
3906 *) New 'shared_ldflag' column in Configure platform table.
3909 *) Fix EVP_CIPHER_mode macro.
3910 ["Dan S. Camper" <dan@bti.net>]
3912 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3913 type, we must throw them away by setting rr->length to 0.
3914 [D P Chang <dpc@qualys.com>]
3916 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3918 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3919 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3920 worked incorrectly for those cases where range = 10..._2 and
3921 3*range is two bits longer than range.)
3924 *) Only add signing time to PKCS7 structures if it is not already
3928 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3929 OBJ_ld_ce should be OBJ_id_ce.
3930 Also some ip-pda OIDs in crypto/objects/objects.txt were
3931 incorrect (cf. RFC 3039).
3932 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3934 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3935 returns early because it has nothing to do.
3936 [Andy Schneider <andy.schneider@bjss.co.uk>]
3938 *) [In 0.9.6c-engine release:]
3939 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3940 [Andy Schneider <andy.schneider@bjss.co.uk>]
3942 *) [In 0.9.6c-engine release:]
3943 Add support for Cryptographic Appliance's keyserver technology.
3944 (Use engine 'keyclient')
3945 [Cryptographic Appliances and Geoff Thorpe]
3947 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3948 is called via tools/c89.sh because arguments have to be
3949 rearranged (all '-L' options must appear before the first object
3951 [Richard Shapiro <rshapiro@abinitio.com>]
3953 *) [In 0.9.6c-engine release:]
3954 Add support for Broadcom crypto accelerator cards, backported
3956 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3958 *) [In 0.9.6c-engine release:]
3959 Add support for SureWare crypto accelerator cards from
3960 Baltimore Technologies. (Use engine 'sureware')
3961 [Baltimore Technologies and Mark Cox]
3963 *) [In 0.9.6c-engine release:]
3964 Add support for crypto accelerator cards from Accelerated
3965 Encryption Processing, www.aep.ie. (Use engine 'aep')
3966 [AEP Inc. and Mark Cox]
3968 *) Add a configuration entry for gcc on UnixWare.
3969 [Gary Benson <gbenson@redhat.com>]
3971 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3972 messages are stored in a single piece (fixed-length part and
3973 variable-length part combined) and fix various bugs found on the way.
3976 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3977 instead. BIO_gethostbyname() does not know what timeouts are
3978 appropriate, so entries would stay in cache even when they have
3980 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3982 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3983 faced with a pathologically small ClientHello fragment that does
3984 not contain client_version: Instead of aborting with an error,
3985 simply choose the highest available protocol version (i.e.,
3986 TLS 1.0 unless it is disabled). In practice, ClientHello
3987 messages are never sent like this, but this change gives us
3988 strictly correct behaviour at least for TLS.
3991 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3992 never resets s->method to s->ctx->method when called from within
3993 one of the SSL handshake functions.
3994 [Bodo Moeller; problem pointed out by Niko Baric]
3996 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3997 (sent using the client's version number) if client_version is
3998 smaller than the protocol version in use. Also change
3999 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4000 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4001 the client will at least see that alert.
4004 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4008 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4009 client receives HelloRequest while in a handshake.
4010 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4012 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4013 should end in 'break', not 'goto end' which circuments various
4014 cleanups done in state SSL_ST_OK. But session related stuff
4015 must be disabled for SSL_ST_OK in the case that we just sent a
4018 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4019 before just sending a HelloRequest.
4020 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4022 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4023 reveal whether illegal block cipher padding was found or a MAC
4024 verification error occured. (Neither SSLerr() codes nor alerts
4025 are directly visible to potential attackers, but the information
4026 may leak via logfiles.)
4028 Similar changes are not required for the SSL 2.0 implementation
4029 because the number of padding bytes is sent in clear for SSL 2.0,
4030 and the extra bytes are just ignored. However ssl/s2_pkt.c
4031 failed to verify that the purported number of padding bytes is in
4035 *) Add OpenUNIX-8 support including shared libraries
4036 (Boyd Lynn Gerber <gerberb@zenez.com>).
4039 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4040 'wristwatch attack' using huge encoding parameters (cf.
4041 James H. Manger's CRYPTO 2001 paper). Note that the
4042 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4043 encoding parameters and hence was not vulnerable.
4046 *) BN_sqr() bug fix.
4047 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4049 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4050 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4051 followed by modular reduction.
4052 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4054 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4055 equivalent based on BN_pseudo_rand() instead of BN_rand().
4058 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4059 This function was broken, as the check for a new client hello message
4060 to handle SGC did not allow these large messages.
4061 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4064 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4067 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4068 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4071 *) Rework the configuration and shared library support for Tru64 Unix.
4072 The configuration part makes use of modern compiler features and
4073 still retains old compiler behavior for those that run older versions
4074 of the OS. The shared library support part includes a variant that
4075 uses the RPATH feature, and is available through the special
4076 configuration target "alpha-cc-rpath", which will never be selected
4078 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4080 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4081 with the same message size as in ssl3_get_certificate_request().
4082 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4083 messages might inadvertently be reject as too long.
4084 [Petr Lampa <lampa@fee.vutbr.cz>]
4086 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4089 *) Modified SSL library such that the verify_callback that has been set
4090 specificly for an SSL object with SSL_set_verify() is actually being
4091 used. Before the change, a verify_callback set with this function was
4092 ignored and the verify_callback() set in the SSL_CTX at the time of
4093 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4094 to allow the necessary settings.
4097 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4098 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4099 done automatically (in contradiction to the requirements of the C
4100 standard). This made problems when used from OpenSSH.
4103 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4104 dh->length and always used
4106 BN_rand_range(priv_key, dh->p).
4108 BN_rand_range() is not necessary for Diffie-Hellman, and this
4109 specific range makes Diffie-Hellman unnecessarily inefficient if
4110 dh->length (recommended exponent length) is much smaller than the
4111 length of dh->p. We could use BN_rand_range() if the order of
4112 the subgroup was stored in the DH structure, but we only have
4117 BN_rand(priv_key, l, ...)
4119 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4125 RSA_eay_public_encrypt
4126 RSA_eay_private_decrypt
4127 RSA_eay_private_encrypt (signing)
4128 RSA_eay_public_decrypt (signature verification)
4130 (default implementations for RSA_public_encrypt,
4131 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4132 always reject numbers >= n.
4135 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4136 to synchronize access to 'locking_thread'. This is necessary on
4137 systems where access to 'locking_thread' (an 'unsigned long'
4138 variable) is not atomic.
4141 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4142 *before* setting the 'crypto_lock_rand' flag. The previous code had
4143 a race condition if 0 is a valid thread ID.
4144 [Travis Vitek <vitek@roguewave.com>]
4146 *) Add support for shared libraries under Irix.
4147 [Albert Chin-A-Young <china@thewrittenword.com>]
4149 *) Add configuration option to build on Linux on both big-endian and
4151 [Ralf Baechle <ralf@uni-koblenz.de>]
4153 *) Add the possibility to create shared libraries on HP-UX.
4156 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4158 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4159 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4160 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4161 PRNG state recovery was possible based on the output of
4162 one PRNG request appropriately sized to gain knowledge on
4163 'md' followed by enough consecutive 1-byte PRNG requests
4164 to traverse all of 'state'.
4166 1. When updating 'md_local' (the current thread's copy of 'md')
4167 during PRNG output generation, hash all of the previous
4168 'md_local' value, not just the half used for PRNG output.
4170 2. Make the number of bytes from 'state' included into the hash
4171 independent from the number of PRNG bytes requested.
4173 The first measure alone would be sufficient to avoid
4174 Markku-Juhani's attack. (Actually it had never occurred
4175 to me that the half of 'md_local' used for chaining was the
4176 half from which PRNG output bytes were taken -- I had always
4177 assumed that the secret half would be used.) The second
4178 measure makes sure that additional data from 'state' is never
4179 mixed into 'md_local' in small portions; this heuristically
4180 further strengthens the PRNG.
4183 *) Fix crypto/bn/asm/mips3.s.
4186 *) When only the key is given to "enc", the IV is undefined. Print out
4187 an error message in this case.
4190 *) Handle special case when X509_NAME is empty in X509 printing routines.
4193 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4194 positive and less than q.
4197 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4198 used: it isn't thread safe and the add_lock_callback should handle
4200 [Paul Rose <Paul.Rose@bridge.com>]
4202 *) Verify that incoming data obeys the block size in
4203 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4207 [Ulf Möller, Bodo Möller]
4209 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4210 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4211 when fixing the server behaviour for backwards-compatible 'client
4212 hello' messages. (Note that the attack is impractical against
4213 SSL 3.0 and TLS 1.0 anyway because length and version checking
4214 means that the probability of guessing a valid ciphertext is
4215 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4218 Before 0.9.5, the countermeasure (hide the error by generating a
4219 random 'decryption result') did not work properly because
4220 ERR_clear_error() was missing, meaning that SSL_get_error() would
4221 detect the supposedly ignored error.
4223 Both problems are now fixed.
4226 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4227 (previously it was 1024).
4230 *) Fix for compatibility mode trust settings: ignore trust settings
4231 unless some valid trust or reject settings are present.
4234 *) Fix for blowfish EVP: its a variable length cipher.
4237 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4238 parameters in DSA public key structures and return an error in the
4239 DSA routines if parameters are absent.
4242 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4243 in the current directory if neither $RANDFILE nor $HOME was set.
4244 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4245 caused some confusion to Windows users who haven't defined $HOME.
4246 Thus RAND_file_name() is changed again: e_os.h can define a
4247 DEFAULT_HOME, which will be used if $HOME is not set.
4248 For Windows, we use "C:"; on other platforms, we still require
4249 environment variables.
4251 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4252 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4253 having multiple threads call RAND_poll() concurrently.
4256 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4257 combination of a flag and a thread ID variable.
4258 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4259 flag), *other* threads can enter ssleay_add_bytes without obeying
4260 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4261 that they do not hold after the first thread unsets add_do_not_lock).
4264 *) Change bctest again: '-x' expressions are not available in all
4268 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4270 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4271 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4273 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4274 the default extension for executables, if any. Also, make the perl
4275 scripts that use symlink() to test if it really exists and use "cp"
4276 if it doesn't. All this made OpenSSL compilable and installable in
4280 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4281 If SEQUENCE is length is indefinite just set c->slen to the total
4282 amount of data available.
4283 [Steve Henson, reported by shige@FreeBSD.org]
4284 [This change does not apply to 0.9.7.]
4286 *) Change bctest to avoid here-documents inside command substitution
4287 (workaround for FreeBSD /bin/sh bug).
4288 For compatibility with Ultrix, avoid shell functions (introduced
4289 in the bctest version that searches along $PATH).
4292 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4293 with des_encrypt() defined on some operating systems, like Solaris
4297 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4298 On the Importance of Eliminating Errors in Cryptographic
4299 Computations, J. Cryptology 14 (2001) 2, 101-119,
4300 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4303 *) MIPS assembler BIGNUM division bug fix.
4306 *) Disabled incorrect Alpha assembler code.
4309 *) Fix PKCS#7 decode routines so they correctly update the length
4310 after reading an EOC for the EXPLICIT tag.
4312 [This change does not apply to 0.9.7.]
4314 *) Fix bug in PKCS#12 key generation routines. This was triggered
4315 if a 3DES key was generated with a 0 initial byte. Include
4316 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4317 (but broken) behaviour.
4320 *) Enhance bctest to search for a working bc along $PATH and print
4322 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4324 *) Fix memory leaks in err.c: free err_data string if necessary;
4325 don't write to the wrong index in ERR_set_error_data.
4328 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4332 *) Replace rdtsc with _emit statements for VC++ version 5.
4333 [Jeremy Cooper <jeremy@baymoo.org>]
4335 *) Make it possible to reuse SSLv2 sessions.
4338 *) In copy_email() check for >= 0 as a return value for
4339 X509_NAME_get_index_by_NID() since 0 is a valid index.
4340 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4342 *) Avoid coredump with unsupported or invalid public keys by checking if
4343 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4344 PKCS7_verify() fails with non detached data.
4347 *) Don't use getenv in library functions when run as setuid/setgid.
4348 New function OPENSSL_issetugid().
4351 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4352 due to incorrect handling of multi-threading:
4354 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4356 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4358 3. Count how many times MemCheck_off() has been called so that
4359 nested use can be treated correctly. This also avoids
4360 inband-signalling in the previous code (which relied on the
4361 assumption that thread ID 0 is impossible).
4364 *) Add "-rand" option also to s_client and s_server.
4367 *) Fix CPU detection on Irix 6.x.
4368 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4369 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4371 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4374 [This change does not apply to 0.9.7.]
4376 *) Use the cached encoding of an X509_NAME structure rather than
4377 copying it. This is apparently the reason for the libsafe "errors"
4378 but the code is actually correct.
4381 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4382 Bleichenbacher's DSA attack.
4383 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4384 to be set and top=0 forces the highest bit to be set; top=-1 is new
4385 and leaves the highest bit random.
4386 [Ulf Moeller, Bodo Moeller]
4388 *) In the NCONF_...-based implementations for CONF_... queries
4389 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4390 a temporary CONF structure with the data component set to NULL
4391 (which gives segmentation faults in lh_retrieve).
4392 Instead, use NULL for the CONF pointer in CONF_get_string and
4393 CONF_get_number (which may use environment variables) and directly
4394 return NULL from CONF_get_section.
4397 *) Fix potential buffer overrun for EBCDIC.
4400 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4401 keyUsage if basicConstraints absent for a CA.
4404 *) Make SMIME_write_PKCS7() write mail header values with a format that
4405 is more generally accepted (no spaces before the semicolon), since
4406 some programs can't parse those values properly otherwise. Also make
4407 sure BIO's that break lines after each write do not create invalid
4411 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4412 macros previously used would not encode an empty SEQUENCE OF
4413 and break the signature.
4415 [This change does not apply to 0.9.7.]
4417 *) Zero the premaster secret after deriving the master secret in
4421 *) Add some EVP_add_digest_alias registrations (as found in
4422 OpenSSL_add_all_digests()) to SSL_library_init()
4423 aka OpenSSL_add_ssl_algorithms(). This provides improved
4424 compatibility with peers using X.509 certificates
4425 with unconventional AlgorithmIdentifier OIDs.
4428 *) Fix for Irix with NO_ASM.
4429 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4431 *) ./config script fixes.
4432 [Ulf Moeller, Richard Levitte]
4434 *) Fix 'openssl passwd -1'.
4437 *) Change PKCS12_key_gen_asc() so it can cope with non null
4438 terminated strings whose length is passed in the passlen
4439 parameter, for example from PEM callbacks. This was done
4440 by adding an extra length parameter to asc2uni().
4441 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4443 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4444 call failed, free the DSA structure.
4447 *) Fix to uni2asc() to cope with zero length Unicode strings.
4448 These are present in some PKCS#12 files.
4451 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4452 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4453 when writing a 32767 byte record.
4454 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4456 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4457 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4459 (RSA objects have a reference count access to which is protected
4460 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4461 so they are meant to be shared between threads.)
4462 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4463 "Reddie, Steven" <Steven.Reddie@ca.com>]
4465 *) Fix a deadlock in CRYPTO_mem_leaks().
4468 *) Use better test patterns in bntest.
4471 *) rand_win.c fix for Borland C.
4474 *) BN_rshift bugfix for n == 0.
4477 *) Add a 'bctest' script that checks for some known 'bc' bugs
4478 so that 'make test' does not abort just because 'bc' is broken.
4481 *) Store verify_result within SSL_SESSION also for client side to
4482 avoid potential security hole. (Re-used sessions on the client side
4483 always resulted in verify_result==X509_V_OK, not using the original
4484 result of the server certificate verification.)
4487 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4488 SSL3_RT_APPLICATION_DATA, return 0.
4489 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4493 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4494 releases, have been re-implemented by renaming the previous
4495 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4496 and ssl3_read_internal, respectively, and adding 'peek' parameters
4497 to them. The new ssl[23]_{read,peek} functions are calls to
4498 ssl[23]_read_internal with the 'peek' flag set appropriately.
4499 A 'peek' parameter has also been added to ssl3_read_bytes, which
4500 does the actual work for ssl3_read_internal.
4503 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4504 the method-specific "init()" handler. Also clean up ex_data after
4505 calling the method-specific "finish()" handler. Previously, this was
4506 happening the other way round.
4509 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4510 The previous value, 12, was not always sufficient for BN_mod_exp().
4513 *) Make sure that shared libraries get the internal name engine with
4514 the full version number and not just 0. This should mark the
4515 shared libraries as not backward compatible. Of course, this should
4516 be changed again when we can guarantee backward binary compatibility.
4519 *) Fix typo in get_cert_by_subject() in by_dir.c
4520 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4522 *) Rework the system to generate shared libraries:
4524 - Make note of the expected extension for the shared libraries and
4525 if there is a need for symbolic links from for example libcrypto.so.0
4526 to libcrypto.so.0.9.7. There is extended info in Configure for
4529 - Make as few rebuilds of the shared libraries as possible.
4531 - Still avoid linking the OpenSSL programs with the shared libraries.
4533 - When installing, install the shared libraries separately from the
4537 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4539 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4540 and not in SSL_clear because the latter is also used by the
4541 accept/connect functions; previously, the settings made by
4542 SSL_set_read_ahead would be lost during the handshake.
4543 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4545 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4546 Previously, it would create entries for disableed algorithms no
4550 *) Added several new manual pages for SSL_* function.
4553 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4555 *) In ssl23_get_client_hello, generate an error message when faced
4556 with an initial SSL 3.0/TLS record that is too small to contain the
4557 first two bytes of the ClientHello message, i.e. client_version.
4558 (Note that this is a pathologic case that probably has never happened
4559 in real life.) The previous approach was to use the version number
4560 from the record header as a substitute; but our protocol choice
4561 should not depend on that one because it is not authenticated
4562 by the Finished messages.
4565 *) More robust randomness gathering functions for Windows.
4566 [Jeffrey Altman <jaltman@columbia.edu>]
4568 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4569 not set then we don't setup the error code for issuer check errors
4570 to avoid possibly overwriting other errors which the callback does
4571 handle. If an application does set the flag then we assume it knows
4572 what it is doing and can handle the new informational codes
4576 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4577 a general "ANY" type, as such it should be able to decode anything
4578 including tagged types. However it didn't check the class so it would
4579 wrongly interpret tagged types in the same way as their universal
4580 counterpart and unknown types were just rejected. Changed so that the
4581 tagged and unknown types are handled in the same way as a SEQUENCE:
4582 that is the encoding is stored intact. There is also a new type
4583 "V_ASN1_OTHER" which is used when the class is not universal, in this
4584 case we have no idea what the actual type is so we just lump them all
4588 *) On VMS, stdout may very well lead to a file that is written to
4589 in a record-oriented fashion. That means that every write() will
4590 write a separate record, which will be read separately by the
4591 programs trying to read from it. This can be very confusing.
4593 The solution is to put a BIO filter in the way that will buffer
4594 text until a linefeed is reached, and then write everything a
4595 line at a time, so every record written will be an actual line,
4596 not chunks of lines and not (usually doesn't happen, but I've
4597 seen it once) several lines in one record. BIO_f_linebuffer() is
4600 Currently, it's a VMS-only method, because that's where it has
4601 been tested well enough.
4604 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4605 it can return incorrect results.
4606 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4607 but it was in 0.9.6-beta[12].)
4610 *) Disable the check for content being present when verifying detached
4611 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4612 include zero length content when signing messages.
4615 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4616 BIO_ctrl (for BIO pairs).
4619 *) Add DSO method for VMS.
4622 *) Bug fix: Montgomery multiplication could produce results with the
4626 *) Add RPM specification openssl.spec and modify it to build three
4627 packages. The default package contains applications, application
4628 documentation and run-time libraries. The devel package contains
4629 include files, static libraries and function documentation. The
4630 doc package contains the contents of the doc directory. The original
4631 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4634 *) Add a large number of documentation files for many SSL routines.
4635 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4637 *) Add a configuration entry for Sony News 4.
4638 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4640 *) Don't set the two most significant bits to one when generating a
4641 random number < q in the DSA library.
4644 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4645 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4646 the underlying transport is blocking) if a handshake took place.
4647 (The default behaviour is needed by applications such as s_client
4648 and s_server that use select() to determine when to use SSL_read;
4649 but for applications that know in advance when to expect data, it
4650 just makes things more complicated.)
4653 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4657 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4658 work better on such systems.
4659 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4661 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4662 Update PKCS12_parse() so it copies the friendlyName and the
4663 keyid to the certificates aux info.
4666 *) Fix bug in PKCS7_verify() which caused an infinite loop
4667 if there was more than one signature.
4668 [Sven Uszpelkat <su@celocom.de>]
4670 *) Major change in util/mkdef.pl to include extra information
4671 about each symbol, as well as presentig variables as well
4672 as functions. This change means that there's n more need
4673 to rebuild the .num files when some algorithms are excluded.
4676 *) Allow the verify time to be set by an application,
4677 rather than always using the current time.
4680 *) Phase 2 verify code reorganisation. The certificate
4681 verify code now looks up an issuer certificate by a
4682 number of criteria: subject name, authority key id
4683 and key usage. It also verifies self signed certificates
4684 by the same criteria. The main comparison function is
4685 X509_check_issued() which performs these checks.
4687 Lot of changes were necessary in order to support this
4688 without completely rewriting the lookup code.
4690 Authority and subject key identifier are now cached.
4692 The LHASH 'certs' is X509_STORE has now been replaced
4693 by a STACK_OF(X509_OBJECT). This is mainly because an
4694 LHASH can't store or retrieve multiple objects with
4695 the same hash value.
4697 As a result various functions (which were all internal
4698 use only) have changed to handle the new X509_STORE
4699 structure. This will break anything that messed round
4700 with X509_STORE internally.
4702 The functions X509_STORE_add_cert() now checks for an
4703 exact match, rather than just subject name.
4705 The X509_STORE API doesn't directly support the retrieval
4706 of multiple certificates matching a given criteria, however
4707 this can be worked round by performing a lookup first
4708 (which will fill the cache with candidate certificates)
4709 and then examining the cache for matches. This is probably
4710 the best we can do without throwing out X509_LOOKUP
4711 entirely (maybe later...).
4713 The X509_VERIFY_CTX structure has been enhanced considerably.
4715 All certificate lookup operations now go via a get_issuer()
4716 callback. Although this currently uses an X509_STORE it
4717 can be replaced by custom lookups. This is a simple way
4718 to bypass the X509_STORE hackery necessary to make this
4719 work and makes it possible to use more efficient techniques
4720 in future. A very simple version which uses a simple
4721 STACK for its trusted certificate store is also provided
4722 using X509_STORE_CTX_trusted_stack().
4724 The verify_cb() and verify() callbacks now have equivalents
4725 in the X509_STORE_CTX structure.
4727 X509_STORE_CTX also has a 'flags' field which can be used
4728 to customise the verify behaviour.
4731 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4732 excludes S/MIME capabilities.
4735 *) When a certificate request is read in keep a copy of the
4736 original encoding of the signed data and use it when outputing
4737 again. Signatures then use the original encoding rather than
4738 a decoded, encoded version which may cause problems if the
4739 request is improperly encoded.
4742 *) For consistency with other BIO_puts implementations, call
4743 buffer_write(b, ...) directly in buffer_puts instead of calling
4746 In BIO_puts, increment b->num_write as in BIO_write.
4747 [Peter.Sylvester@EdelWeb.fr]
4749 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4750 BN_zero, we may not return a BIGNUM with an array consisting of
4754 *) Avoid calling abort() from within the library when problems are
4755 detected, except if preprocessor symbols have been defined
4756 (such as REF_CHECK, BN_DEBUG etc.).
4759 *) New openssl application 'rsautl'. This utility can be
4760 used for low level RSA operations. DER public key
4761 BIO/fp routines also added.
4764 *) New Configure entry and patches for compiling on QNX 4.
4765 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4767 *) A demo state-machine implementation was sponsored by
4768 Nuron (http://www.nuron.com/) and is now available in
4769 demos/state_machine.
4772 *) New options added to the 'dgst' utility for signature
4773 generation and verification.
4776 *) Unrecognized PKCS#7 content types are now handled via a
4777 catch all ASN1_TYPE structure. This allows unsupported
4778 types to be stored as a "blob" and an application can
4779 encode and decode it manually.
4782 *) Fix various signed/unsigned issues to make a_strex.c
4784 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4786 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4787 length if passed a buffer. ASN1_INTEGER_to_BN failed
4788 if passed a NULL BN and its argument was negative.
4789 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4791 *) Modification to PKCS#7 encoding routines to output definite
4792 length encoding. Since currently the whole structures are in
4793 memory there's not real point in using indefinite length
4794 constructed encoding. However if OpenSSL is compiled with
4795 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4798 *) Added BIO_vprintf() and BIO_vsnprintf().
4801 *) Added more prefixes to parse for in the the strings written
4802 through a logging bio, to cover all the levels that are available
4803 through syslog. The prefixes are now:
4805 PANIC, EMERG, EMR => LOG_EMERG
4806 ALERT, ALR => LOG_ALERT
4807 CRIT, CRI => LOG_CRIT
4808 ERROR, ERR => LOG_ERR
4809 WARNING, WARN, WAR => LOG_WARNING
4810 NOTICE, NOTE, NOT => LOG_NOTICE
4811 INFO, INF => LOG_INFO
4812 DEBUG, DBG => LOG_DEBUG
4814 and as before, if none of those prefixes are present at the
4815 beginning of the string, LOG_ERR is chosen.
4817 On Win32, the LOG_* levels are mapped according to this:
4819 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4820 LOG_WARNING => EVENTLOG_WARNING_TYPE
4821 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4825 *) Made it possible to reconfigure with just the configuration
4826 argument "reconf" or "reconfigure". The command line arguments
4827 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4828 and are retrieved from there when reconfiguring.
4832 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4834 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4837 *) The obj_dat.pl script was messing up the sorting of object
4838 names. The reason was that it compared the quoted version
4839 of strings as a result "OCSP" > "OCSP Signing" because
4840 " > SPACE. Changed script to store unquoted versions of
4841 names and add quotes on output. It was also omitting some
4842 names from the lookup table if they were given a default
4843 value (that is if SN is missing it is given the same
4844 value as LN and vice versa), these are now added on the
4845 grounds that if an object has a name we should be able to
4846 look it up. Finally added warning output when duplicate
4847 short or long names are found.
4850 *) Changes needed for Tandem NSK.
4851 [Scott Uroff <scott@xypro.com>]
4853 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4854 RSA_padding_check_SSLv23(), special padding was never detected
4855 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4856 version rollback attacks was not effective.
4858 In s23_clnt.c, don't use special rollback-attack detection padding
4859 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4860 client; similarly, in s23_srvr.c, don't do the rollback check if
4861 SSL 2.0 is the only protocol enabled in the server.
4864 *) Make it possible to get hexdumps of unprintable data with 'openssl
4865 asn1parse'. By implication, the functions ASN1_parse_dump() and
4866 BIO_dump_indent() are added.
4869 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4870 these print out strings and name structures based on various
4871 flags including RFC2253 support and proper handling of
4872 multibyte characters. Added options to the 'x509' utility
4873 to allow the various flags to be set.
4876 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4877 Also change the functions X509_cmp_current_time() and
4878 X509_gmtime_adj() work with an ASN1_TIME structure,
4879 this will enable certificates using GeneralizedTime in validity
4880 dates to be checked.
4883 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4884 negative public key encodings) on by default,
4885 NO_NEG_PUBKEY_BUG can be set to disable it.
4888 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4889 content octets. An i2c_ASN1_OBJECT is unnecessary because
4890 the encoding can be trivially obtained from the structure.
4893 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4894 not read locks (CRYPTO_r_[un]lock).
4897 *) A first attempt at creating official support for shared
4898 libraries through configuration. I've kept it so the
4899 default is static libraries only, and the OpenSSL programs
4900 are always statically linked for now, but there are
4901 preparations for dynamic linking in place.
4902 This has been tested on Linux and Tru64.
4905 *) Randomness polling function for Win9x, as described in:
4906 Peter Gutmann, Software Generation of Practically Strong
4910 *) Fix so PRNG is seeded in req if using an already existing
4914 *) New options to smime application. -inform and -outform
4915 allow alternative formats for the S/MIME message including
4916 PEM and DER. The -content option allows the content to be
4917 specified separately. This should allow things like Netscape
4918 form signing output easier to verify.
4921 *) Fix the ASN1 encoding of tags using the 'long form'.
4924 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4925 STRING types. These convert content octets to and from the
4926 underlying type. The actual tag and length octets are
4927 already assumed to have been read in and checked. These
4928 are needed because all other string types have virtually
4929 identical handling apart from the tag. By having versions
4930 of the ASN1 functions that just operate on content octets
4931 IMPLICIT tagging can be handled properly. It also allows
4932 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4933 and ASN1_INTEGER are identical apart from the tag.
4936 *) Change the handling of OID objects as follows:
4938 - New object identifiers are inserted in objects.txt, following
4939 the syntax given in objects.README.
4940 - objects.pl is used to process obj_mac.num and create a new
4942 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4945 This is currently kind of a hack, and the perl code in objects.pl
4946 isn't very elegant, but it works as I intended. The simplest way
4947 to check that it worked correctly is to look in obj_dat.h and
4948 check the array nid_objs and make sure the objects haven't moved
4949 around (this is important!). Additions are OK, as well as
4950 consistent name changes.
4953 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4956 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4957 The given file adds to whatever has already been seeded into the
4958 random pool through the RANDFILE configuration file option or
4959 environment variable, or the default random state file.
4962 *) mkstack.pl now sorts each macro group into lexical order.
4963 Previously the output order depended on the order the files
4964 appeared in the directory, resulting in needless rewriting
4968 *) Patches to make OpenSSL compile under Win32 again. Mostly
4969 work arounds for the VC++ problem that it treats func() as
4970 func(void). Also stripped out the parts of mkdef.pl that
4971 added extra typesafe functions: these no longer exist.
4974 *) Reorganisation of the stack code. The macros are now all
4975 collected in safestack.h . Each macro is defined in terms of
4976 a "stack macro" of the form SKM_<name>(type, a, b). The
4977 DEBUG_SAFESTACK is now handled in terms of function casts,
4978 this has the advantage of retaining type safety without the
4979 use of additional functions. If DEBUG_SAFESTACK is not defined
4980 then the non typesafe macros are used instead. Also modified the
4981 mkstack.pl script to handle the new form. Needs testing to see
4982 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4983 the default if no major problems. Similar behaviour for ASN1_SET_OF
4984 and PKCS12_STACK_OF.
4987 *) When some versions of IIS use the 'NET' form of private key the
4988 key derivation algorithm is different. Normally MD5(password) is
4989 used as a 128 bit RC4 key. In the modified case
4990 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4991 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4992 as the old Netscape_RSA functions except they have an additional
4993 'sgckey' parameter which uses the modified algorithm. Also added
4994 an -sgckey command line option to the rsa utility. Thanks to
4995 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4996 algorithm to openssl-dev.
4999 *) The evp_local.h macros were using 'c.##kname' which resulted in
5000 invalid expansion on some systems (SCO 5.0.5 for example).
5001 Corrected to 'c.kname'.
5002 [Phillip Porch <root@theporch.com>]
5004 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5005 a STACK of email addresses from a certificate or request, these look
5006 in the subject name and the subject alternative name extensions and
5007 omit any duplicate addresses.
5010 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5011 This makes DSA verification about 2 % faster.
5014 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5015 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5016 plus overhead for 1024 bit moduli).
5017 This makes exponentiations about 0.5 % faster for 1024 bit
5018 exponents (as measured by "openssl speed rsa2048").
5021 *) Rename memory handling macros to avoid conflicts with other
5023 Malloc => OPENSSL_malloc
5024 Malloc_locked => OPENSSL_malloc_locked
5025 Realloc => OPENSSL_realloc
5026 Free => OPENSSL_free
5029 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5030 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5033 *) CygWin32 support.
5034 [John Jarvie <jjarvie@newsguy.com>]
5036 *) The type-safe stack code has been rejigged. It is now only compiled
5037 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5038 by default all type-specific stack functions are "#define"d back to
5039 standard stack functions. This results in more streamlined output
5040 but retains the type-safety checking possibilities of the original
5044 *) The STACK code has been cleaned up, and certain type declarations
5045 that didn't make a lot of sense have been brought in line. This has
5046 also involved a cleanup of sorts in safestack.h to more correctly
5047 map type-safe stack functions onto their plain stack counterparts.
5048 This work has also resulted in a variety of "const"ifications of
5049 lots of the code, especially "_cmp" operations which should normally
5050 be prototyped with "const" parameters anyway.
5053 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5054 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5055 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5056 where all of 'md' is used each time the PRNG is used, but 'state'
5057 is used only indexed by a cyclic counter. As entropy may not be
5058 well distributed from the beginning, 'md' is important as a
5059 chaining variable. However, the output function chains only half
5060 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5061 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5062 in all of 'state' being rewritten, with the new values depending
5063 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5066 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5067 the handshake is continued after ssl_verify_cert_chain();
5068 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5069 can lead to 'unexplainable' connection aborts later.
5070 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5072 *) Major EVP API cipher revision.
5073 Add hooks for extra EVP features. This allows various cipher
5074 parameters to be set in the EVP interface. Support added for variable
5075 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5076 setting of RC2 and RC5 parameters.
5078 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5081 Remove lots of duplicated code from the EVP library. For example *every*
5082 cipher init() function handles the 'iv' in the same way according to the
5083 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5084 for CFB and OFB modes they zero ctx->num.
5086 New functionality allows removal of S/MIME code RC2 hack.
5088 Most of the routines have the same form and so can be declared in terms
5091 By shifting this to the top level EVP_CipherInit() it can be removed from
5092 all individual ciphers. If the cipher wants to handle IVs or keys
5093 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5096 Change lots of functions like EVP_EncryptUpdate() to now return a
5097 value: although software versions of the algorithms cannot fail
5098 any installed hardware versions can.
5101 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5102 this option is set, tolerate broken clients that send the negotiated
5103 protocol version number instead of the requested protocol version
5107 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5108 i.e. non-zero for export ciphersuites, zero otherwise.
5109 Previous versions had this flag inverted, inconsistent with
5110 rsa_tmp_cb (..._TMP_RSA_CB).
5111 [Bodo Moeller; problem reported by Amit Chopra]
5113 *) Add missing DSA library text string. Work around for some IIS
5114 key files with invalid SEQUENCE encoding.
5117 *) Add a document (doc/standards.txt) that list all kinds of standards
5118 and so on that are implemented in OpenSSL.
5121 *) Enhance c_rehash script. Old version would mishandle certificates
5122 with the same subject name hash and wouldn't handle CRLs at all.
5123 Added -fingerprint option to crl utility, to support new c_rehash
5127 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5130 *) Fix for SSL server purpose checking. Server checking was
5131 rejecting certificates which had extended key usage present
5132 but no ssl client purpose.
5133 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5135 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5136 is a little unclear about how a blank password is handled.
5137 Since the password in encoded as a BMPString with terminating
5138 double NULL a zero length password would end up as just the
5139 double NULL. However no password at all is different and is
5140 handled differently in the PKCS#12 key generation code. NS
5141 treats a blank password as zero length. MSIE treats it as no
5142 password on export: but it will try both on import. We now do
5143 the same: PKCS12_parse() tries zero length and no password if
5144 the password is set to "" or NULL (NULL is now a valid password:
5145 it wasn't before) as does the pkcs12 application.
5148 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5149 perror when PEM_read_bio_X509_REQ fails, the error message must
5150 be obtained from the error queue.
5153 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5154 it in ERR_remove_state if appropriate, and change ERR_get_state
5155 accordingly to avoid race conditions (this is necessary because
5156 thread_hash is no longer constant once set).
5159 *) Bugfix for linux-elf makefile.one.
5162 *) RSA_get_default_method() will now cause a default
5163 RSA_METHOD to be chosen if one doesn't exist already.
5164 Previously this was only set during a call to RSA_new()
5165 or RSA_new_method(NULL) meaning it was possible for
5166 RSA_get_default_method() to return NULL.
5169 *) Added native name translation to the existing DSO code
5170 that will convert (if the flag to do so is set) filenames
5171 that are sufficiently small and have no path information
5172 into a canonical native form. Eg. "blah" converted to
5173 "libblah.so" or "blah.dll" etc.
5176 *) New function ERR_error_string_n(e, buf, len) which is like
5177 ERR_error_string(e, buf), but writes at most 'len' bytes
5178 including the 0 terminator. For ERR_error_string_n, 'buf'
5180 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5182 *) CONF library reworked to become more general. A new CONF
5183 configuration file reader "class" is implemented as well as a
5184 new functions (NCONF_*, for "New CONF") to handle it. The now
5185 old CONF_* functions are still there, but are reimplemented to
5186 work in terms of the new functions. Also, a set of functions
5187 to handle the internal storage of the configuration data is
5188 provided to make it easier to write new configuration file
5189 reader "classes" (I can definitely see something reading a
5190 configuration file in XML format, for example), called _CONF_*,
5191 or "the configuration storage API"...
5193 The new configuration file reading functions are:
5195 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5196 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5198 NCONF_default, NCONF_WIN32
5200 NCONF_dump_fp, NCONF_dump_bio
5202 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5203 NCONF_new creates a new CONF object. This works in the same way
5204 as other interfaces in OpenSSL, like the BIO interface.
5205 NCONF_dump_* dump the internal storage of the configuration file,
5206 which is useful for debugging. All other functions take the same
5207 arguments as the old CONF_* functions wth the exception of the
5208 first that must be a `CONF *' instead of a `LHASH *'.
5210 To make it easer to use the new classes with the old CONF_* functions,
5211 the function CONF_set_default_method is provided.
5214 *) Add '-tls1' option to 'openssl ciphers', which was already
5215 mentioned in the documentation but had not been implemented.
5216 (This option is not yet really useful because even the additional
5217 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5220 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5221 OpenSSL-based applications) load shared libraries and bind to
5222 them in a portable way.
5223 [Geoff Thorpe, with contributions from Richard Levitte]
5225 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5227 *) Make sure _lrotl and _lrotr are only used with MSVC.
5229 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5230 (the default implementation of RAND_status).
5232 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5233 to '-clrext' (= clear extensions), as intended and documented.
5234 [Bodo Moeller; inconsistency pointed out by Michael Attili
5237 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5238 was larger than the MD block size.
5239 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5241 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5242 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5243 using the passed key: if the passed key was a private key the result
5244 of X509_print(), for example, would be to print out all the private key
5248 *) des_quad_cksum() byte order bug fix.
5249 [Ulf Möller, using the problem description in krb4-0.9.7, where
5250 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5252 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5254 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5256 *) For easily testing in shell scripts whether some command
5257 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5258 returns with exit code 0 iff no command of the given name is available.
5259 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5260 the output goes to stdout and nothing is printed to stderr.
5261 Additional arguments are always ignored.
5263 Since for each cipher there is a command of the same name,
5264 the 'no-cipher' compilation switches can be tested this way.
5266 ('openssl no-XXX' is not able to detect pseudo-commands such
5267 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5270 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5273 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5274 is set; it will be thrown away anyway because each handshake creates
5276 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5277 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5278 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5279 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5282 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5283 'Q' and 'R' lose their special meanings (quit/renegotiate).
5284 This is part of what -quiet does; unlike -quiet, -ign_eof
5285 does not suppress any output.
5288 *) Add compatibility options to the purpose and trust code. The
5289 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5290 accepts a certificate or CA, this was the previous behaviour,
5291 with all the associated security issues.
5293 X509_TRUST_COMPAT is the old trust behaviour: only and
5294 automatically trust self signed roots in certificate store. A
5295 new trust setting X509_TRUST_DEFAULT is used to specify that
5296 a purpose has no associated trust setting and it should instead
5297 use the value in the default purpose.
5300 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5301 and fix a memory leak.
5304 *) In util/mkerr.pl (which implements 'make errors'), preserve
5305 reason strings from the previous version of the .c file, as
5306 the default to have only downcase letters (and digits) in
5307 automatically generated reasons codes is not always appropriate.
5310 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5311 using strerror. Previously, ERR_reason_error_string() returned
5312 library names as reason strings for SYSerr; but SYSerr is a special
5313 case where small numbers are errno values, not library numbers.
5316 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5317 converts DSA parameters into DH parameters. (When creating parameters,
5318 DSA_generate_parameters is used.)
5321 *) Include 'length' (recommended exponent length) in C code generated
5322 by 'openssl dhparam -C'.
5325 *) The second argument to set_label in perlasm was already being used
5326 so couldn't be used as a "file scope" flag. Moved to third argument
5330 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5331 instead of RAND_bytes for encryption IVs and salts.
5334 *) Include RAND_status() into RAND_METHOD instead of implementing
5335 it only for md_rand.c Otherwise replacing the PRNG by calling
5336 RAND_set_rand_method would be impossible.
5339 *) Don't let DSA_generate_key() enter an infinite loop if the random
5340 number generation fails.
5343 *) New 'rand' application for creating pseudo-random output.
5346 *) Added configuration support for Linux/IA64
5347 [Rolf Haberrecker <rolf@suse.de>]
5349 *) Assembler module support for Mingw32.
5352 *) Shared library support for HPUX (in shlib/).
5353 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5355 *) Shared library support for Solaris gcc.
5356 [Lutz Behnke <behnke@trustcenter.de>]
5358 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5360 *) PKCS7_encrypt() was adding text MIME headers twice because they
5361 were added manually and by SMIME_crlf_copy().
5364 *) In bntest.c don't call BN_rand with zero bits argument.
5365 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5367 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5368 case was implemented. This caused BN_div_recp() to fail occasionally.
5371 *) Add an optional second argument to the set_label() in the perl
5372 assembly language builder. If this argument exists and is set
5373 to 1 it signals that the assembler should use a symbol whose
5374 scope is the entire file, not just the current function. This
5375 is needed with MASM which uses the format label:: for this scope.
5376 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5378 *) Change the ASN1 types so they are typedefs by default. Before
5379 almost all types were #define'd to ASN1_STRING which was causing
5380 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5384 *) Change names of new functions to the new get1/get0 naming
5385 convention: After 'get1', the caller owns a reference count
5386 and has to call ..._free; 'get0' returns a pointer to some
5387 data structure without incrementing reference counters.
5388 (Some of the existing 'get' functions increment a reference
5389 counter, some don't.)
5390 Similarly, 'set1' and 'add1' functions increase reference
5391 counters or duplicate objects.
5394 *) Allow for the possibility of temp RSA key generation failure:
5395 the code used to assume it always worked and crashed on failure.
5398 *) Fix potential buffer overrun problem in BIO_printf().
5399 [Ulf Möller, using public domain code by Patrick Powell; problem
5400 pointed out by David Sacerdote <das33@cornell.edu>]
5402 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5403 RAND_egd() and RAND_status(). In the command line application,
5404 the EGD socket can be specified like a seed file using RANDFILE
5408 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5409 Some CAs (e.g. Verisign) distribute certificates in this form.
5412 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5413 list to exclude them. This means that no special compilation option
5414 is needed to use anonymous DH: it just needs to be included in the
5418 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5419 EVP_MD_type. The old functionality is available in a new macro called
5420 EVP_MD_md(). Change code that uses it and update docs.
5423 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5424 where the 'void *' argument is replaced by a function pointer argument.
5425 Previously 'void *' was abused to point to functions, which works on
5426 many platforms, but is not correct. As these functions are usually
5427 called by macros defined in OpenSSL header files, most source code
5428 should work without changes.
5431 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5432 sections with information on -D... compiler switches used for
5433 compiling the library so that applications can see them. To enable
5434 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5435 must be defined. E.g.,
5436 #define OPENSSL_ALGORITHM_DEFINES
5437 #include <openssl/opensslconf.h>
5438 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5439 [Richard Levitte, Ulf and Bodo Möller]
5441 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5445 *) Change the 'other' type in certificate aux info to a STACK_OF
5446 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5447 the required ASN1 format: arbitrary types determined by an OID.
5450 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5451 argument to 'req'. This is not because the function is newer or
5452 better than others it just uses the work 'NEW' in the certificate
5453 request header lines. Some software needs this.
5456 *) Reorganise password command line arguments: now passwords can be
5457 obtained from various sources. Delete the PEM_cb function and make
5458 it the default behaviour: i.e. if the callback is NULL and the
5459 usrdata argument is not NULL interpret it as a null terminated pass
5460 phrase. If usrdata and the callback are NULL then the pass phrase
5461 is prompted for as usual.
5464 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5465 the support is automatically enabled. The resulting binaries will
5466 autodetect the card and use it if present.
5467 [Ben Laurie and Compaq Inc.]
5469 *) Work around for Netscape hang bug. This sends certificate request
5470 and server done in one record. Since this is perfectly legal in the
5471 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5472 the bugs/SSLv3 entry for more info.
5475 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5478 *) Add -rand argument to smime and pkcs12 applications and read/write
5482 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5485 *) Add command line password options to the remaining applications.
5488 *) Bug fix for BN_div_recp() for numerators with an even number of
5492 *) More tests in bntest.c, and changed test_bn output.
5495 *) ./config recognizes MacOS X now.
5498 *) Bug fix for BN_div() when the first words of num and divsor are
5499 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5502 *) Add support for various broken PKCS#8 formats, and command line
5503 options to produce them.
5506 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5507 get temporary BIGNUMs from a BN_CTX.
5510 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5514 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5515 include a #define from the old name to the new. The original intent
5516 was that statically linked binaries could for example just call
5517 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5518 link with digests. This never worked becayse SSLeay_add_all_digests()
5519 and SSLeay_add_all_ciphers() were in the same source file so calling
5520 one would link with the other. They are now in separate source files.
5523 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5526 *) Use a less unusual form of the Miller-Rabin primality test (it used
5527 a binary algorithm for exponentiation integrated into the Miller-Rabin
5528 loop, our standard modexp algorithms are faster).
5531 *) Support for the EBCDIC character set completed.
5532 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5534 *) Source code cleanups: use const where appropriate, eliminate casts,
5535 use void * instead of char * in lhash.
5538 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5539 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5540 this the server could overwrite ephemeral keys that the client
5544 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5545 using 50 iterations of the Rabin-Miller test.
5547 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5548 iterations of the Rabin-Miller test as required by the appendix
5549 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5550 As BN_is_prime_fasttest includes trial division, DSA parameter
5551 generation becomes much faster.
5553 This implies a change for the callback functions in DSA_is_prime
5554 and DSA_generate_parameters: The callback function is called once
5555 for each positive witness in the Rabin-Miller test, not just
5556 occasionally in the inner loop; and the parameters to the
5557 callback function now provide an iteration count for the outer
5558 loop rather than for the current invocation of the inner loop.
5559 DSA_generate_parameters additionally can call the callback
5560 function with an 'iteration count' of -1, meaning that a
5561 candidate has passed the trial division test (when q is generated
5562 from an application-provided seed, trial division is skipped).
5565 *) New function BN_is_prime_fasttest that optionally does trial
5566 division before starting the Rabin-Miller test and has
5567 an additional BN_CTX * argument (whereas BN_is_prime always
5568 has to allocate at least one BN_CTX).
5569 'callback(1, -1, cb_arg)' is called when a number has passed the
5570 trial division stage.
5573 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5577 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5580 *) New function BN_pseudo_rand().
5583 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5584 bignum version of BN_from_montgomery() with the working code from
5585 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5589 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5590 made it impossible to use the same SSL_SESSION data structure in
5591 SSL2 clients in multiple threads.
5594 *) The return value of RAND_load_file() no longer counts bytes obtained
5595 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5596 to seed the PRNG (previously an explicit byte count was required).
5597 [Ulf Möller, Bodo Möller]
5599 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5600 used (char *) instead of (void *) and had casts all over the place.
5603 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5606 *) Retain source code compatibility for BN_prime_checks macro:
5607 BN_is_prime(..., BN_prime_checks, ...) now uses
5608 BN_prime_checks_for_size to determine the appropriate number of
5609 Rabin-Miller iterations.
5612 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5613 DH_CHECK_P_NOT_SAFE_PRIME.
5614 (Check if this is true? OpenPGP calls them "strong".)
5617 *) Merge the functionality of "dh" and "gendh" programs into a new program
5618 "dhparam". The old programs are retained for now but will handle DH keys
5619 (instead of parameters) in future.
5622 *) Make the ciphers, s_server and s_client programs check the return values
5623 when a new cipher list is set.
5626 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5627 ciphers. Before when the 56bit ciphers were enabled the sorting was
5630 The syntax for the cipher sorting has been extended to support sorting by
5631 cipher-strength (using the strength_bits hard coded in the tables).
5632 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5634 Fix a bug in the cipher-command parser: when supplying a cipher command
5635 string with an "undefined" symbol (neither command nor alphanumeric
5636 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5637 an error is flagged.
5639 Due to the strength-sorting extension, the code of the
5640 ssl_create_cipher_list() function was completely rearranged. I hope that
5641 the readability was also increased :-)
5642 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5644 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5645 for the first serial number and places 2 in the serial number file. This
5646 avoids problems when the root CA is created with serial number zero and
5647 the first user certificate has the same issuer name and serial number
5651 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5652 the new code. Add documentation for this stuff.
5655 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5656 X509_*() to X509at_*() on the grounds that they don't handle X509
5657 structures and behave in an analagous way to the X509v3 functions:
5658 they shouldn't be called directly but wrapper functions should be used
5661 So we also now have some wrapper functions that call the X509at functions
5662 when passed certificate requests. (TO DO: similar things can be done with
5663 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5664 things. Some of these need some d2i or i2d and print functionality
5665 because they handle more complex structures.)
5668 *) Add missing #ifndefs that caused missing symbols when building libssl
5669 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5670 NO_RSA in ssl/s2*.c.
5671 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5673 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5674 has a return value which indicates the quality of the random data
5675 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5676 error queue. New function RAND_pseudo_bytes() generates output that is
5677 guaranteed to be unique but not unpredictable. RAND_add is like
5678 RAND_seed, but takes an extra argument for an entropy estimate
5679 (RAND_seed always assumes full entropy).
5682 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5683 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5684 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5685 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5686 false-positive rate of at most 2^-80 for random input.
5689 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5692 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5693 in the 0.9.5 release), this returns the chain
5694 from an X509_CTX structure with a dup of the stack and all
5695 the X509 reference counts upped: so the stack will exist
5696 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5699 Also make SSL_SESSION_print() print out the verify return
5703 *) Add manpage for the pkcs12 command. Also change the default
5704 behaviour so MAC iteration counts are used unless the new
5705 -nomaciter option is used. This improves file security and
5706 only older versions of MSIE (4.0 for example) need it.
5709 *) Honor the no-xxx Configure options when creating .DEF files.
5712 *) Add PKCS#10 attributes to field table: challengePassword,
5713 unstructuredName and unstructuredAddress. These are taken from
5714 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5715 international characters are used.
5717 More changes to X509_ATTRIBUTE code: allow the setting of types
5718 based on strings. Remove the 'loc' parameter when adding
5719 attributes because these will be a SET OF encoding which is sorted
5723 *) Initial changes to the 'req' utility to allow request generation
5724 automation. This will allow an application to just generate a template
5725 file containing all the field values and have req construct the
5728 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5729 used all over the place including certificate requests and PKCS#7
5730 structures. They are currently handled manually where necessary with
5731 some primitive wrappers for PKCS#7. The new functions behave in a
5732 manner analogous to the X509 extension functions: they allow
5733 attributes to be looked up by NID and added.
5735 Later something similar to the X509V3 code would be desirable to
5736 automatically handle the encoding, decoding and printing of the
5737 more complex types. The string types like challengePassword can
5738 be handled by the string table functions.
5740 Also modified the multi byte string table handling. Now there is
5741 a 'global mask' which masks out certain types. The table itself
5742 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5743 is useful when for example there is only one permissible type
5744 (as in countryName) and using the mask might result in no valid
5748 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5749 SSL_get_peer_finished to allow applications to obtain the latest
5750 Finished messages sent to the peer or expected from the peer,
5751 respectively. (SSL_get_peer_finished is usually the Finished message
5752 actually received from the peer, otherwise the protocol will be aborted.)
5754 As the Finished message are message digests of the complete handshake
5755 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5756 be used for external authentication procedures when the authentication
5757 provided by SSL/TLS is not desired or is not enough.
5760 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5761 the host supports BWX extension and if Compaq C is present on the
5762 $PATH. Just exploiting of the BWX extension results in 20-30%
5763 performance kick for some algorithms, e.g. DES and RC4 to mention
5764 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5768 *) Add support for MS "fast SGC". This is arguably a violation of the
5769 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5770 weak crypto and after checking the certificate is SGC a second one
5771 with strong crypto. MS SGC stops the first handshake after receiving
5772 the server certificate message and sends a second client hello. Since
5773 a server will typically do all the time consuming operations before
5774 expecting any further messages from the client (server key exchange
5775 is the most expensive) there is little difference between the two.
5777 To get OpenSSL to support MS SGC we have to permit a second client
5778 hello message after we have sent server done. In addition we have to
5779 reset the MAC if we do get this second client hello.
5782 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5783 if a DER encoded private key is RSA or DSA traditional format. Changed
5784 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5785 format DER encoded private key. Newer code should use PKCS#8 format which
5786 has the key type encoded in the ASN1 structure. Added DER private key
5787 support to pkcs8 application.
5790 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5791 ciphersuites has been selected (as required by the SSL 3/TLS 1
5792 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5793 is set, we interpret this as a request to violate the specification
5794 (the worst that can happen is a handshake failure, and 'correct'
5795 behaviour would result in a handshake failure anyway).
5798 *) In SSL_CTX_add_session, take into account that there might be multiple
5799 SSL_SESSION structures with the same session ID (e.g. when two threads
5800 concurrently obtain them from an external cache).
5801 The internal cache can handle only one SSL_SESSION with a given ID,
5802 so if there's a conflict, we now throw out the old one to achieve
5806 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5807 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5808 some routines that use cipher OIDs: some ciphers do not have OIDs
5809 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5813 *) Simplify the trust setting structure and code. Now we just have
5814 two sequences of OIDs for trusted and rejected settings. These will
5815 typically have values the same as the extended key usage extension
5816 and any application specific purposes.
5818 The trust checking code now has a default behaviour: it will just
5819 check for an object with the same NID as the passed id. Functions can
5820 be provided to override either the default behaviour or the behaviour
5821 for a given id. SSL client, server and email already have functions
5822 in place for compatibility: they check the NID and also return "trusted"
5823 if the certificate is self signed.
5826 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5827 traditional format into an EVP_PKEY structure.
5830 *) Add a password callback function PEM_cb() which either prompts for
5831 a password if usr_data is NULL or otherwise assumes it is a null
5832 terminated password. Allow passwords to be passed on command line
5833 environment or config files in a few more utilities.
5836 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5837 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5838 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5839 Update documentation.
5842 *) Support for ASN1 "NULL" type. This could be handled before by using
5843 ASN1_TYPE but there wasn't any function that would try to read a NULL
5844 and produce an error if it couldn't. For compatibility we also have
5845 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5846 don't allocate anything because they don't need to.
5849 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5851 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5853 *) Rebuild of the memory allocation routines used by OpenSSL code and
5854 possibly others as well. The purpose is to make an interface that
5855 provide hooks so anyone can build a separate set of allocation and
5856 deallocation routines to be used by OpenSSL, for example memory
5857 pool implementations, or something else, which was previously hard
5858 since Malloc(), Realloc() and Free() were defined as macros having
5859 the values malloc, realloc and free, respectively (except for Win32
5860 compilations). The same is provided for memory debugging code.
5861 OpenSSL already comes with functionality to find memory leaks, but
5862 this gives people a chance to debug other memory problems.
5864 With these changes, a new set of functions and macros have appeared:
5866 CRYPTO_set_mem_debug_functions() [F]
5867 CRYPTO_get_mem_debug_functions() [F]
5868 CRYPTO_dbg_set_options() [F]
5869 CRYPTO_dbg_get_options() [F]
5870 CRYPTO_malloc_debug_init() [M]
5872 The memory debug functions are NULL by default, unless the library
5873 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5874 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5875 gives the standard debugging functions that come with OpenSSL) or
5876 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5877 provided by the library user) must be used. When the standard
5878 debugging functions are used, CRYPTO_dbg_set_options can be used to
5879 request additional information:
5880 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5881 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5883 Also, things like CRYPTO_set_mem_functions will always give the
5884 expected result (the new set of functions is used for allocation
5885 and deallocation) at all times, regardless of platform and compiler
5888 To finish it up, some functions that were never use in any other
5889 way than through macros have a new API and new semantic:
5892 CRYPTO_dbg_realloc()
5895 All macros of value have retained their old syntax.
5896 [Richard Levitte and Bodo Moeller]
5898 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5899 ordering of SMIMECapabilities wasn't in "strength order" and there
5900 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5904 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5905 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5906 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5908 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5909 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5910 functionality to handle multipart/signed properly) and a utility
5911 called 'smime' to call all this stuff. This is based on code I
5912 originally wrote for Celo who have kindly allowed it to be
5913 included in OpenSSL.
5916 *) Add variants des_set_key_checked and des_set_key_unchecked of
5917 des_set_key (aka des_key_sched). Global variable des_check_key
5918 decides which of these is called by des_set_key; this way
5919 des_check_key behaves as it always did, but applications and
5920 the library itself, which was buggy for des_check_key == 1,
5921 have a cleaner way to pick the version they need.
5924 *) New function PKCS12_newpass() which changes the password of a
5928 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5929 dynamic mix. In both cases the ids can be used as an index into the
5930 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5931 functions so they accept a list of the field values and the
5932 application doesn't need to directly manipulate the X509_TRUST
5936 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5940 *) Modify the way the V3 extension code looks up extensions. This now
5941 works in a similar way to the object code: we have some "standard"
5942 extensions in a static table which is searched with OBJ_bsearch()
5943 and the application can add dynamic ones if needed. The file
5944 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5945 updated whenever a new extension is added to the core code and kept
5946 in ext_nid order. There is a simple program 'tabtest.c' which checks
5947 this. New extensions are not added too often so this file can readily
5948 be maintained manually.
5950 There are two big advantages in doing things this way. The extensions
5951 can be looked up immediately and no longer need to be "added" using
5952 X509V3_add_standard_extensions(): this function now does nothing.
5953 [Side note: I get *lots* of email saying the extension code doesn't
5954 work because people forget to call this function]
5955 Also no dynamic allocation is done unless new extensions are added:
5956 so if we don't add custom extensions there is no need to call
5957 X509V3_EXT_cleanup().
5960 *) Modify enc utility's salting as follows: make salting the default. Add a
5961 magic header, so unsalted files fail gracefully instead of just decrypting
5962 to garbage. This is because not salting is a big security hole, so people
5963 should be discouraged from doing it.
5966 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5967 digest to be passed on the command line but it only used this
5968 parameter when signing a certificate. Modified so all relevant
5969 operations are affected by the digest parameter including the
5970 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5971 DSA key was used because it didn't fix the digest.
5974 *) Initial certificate chain verify code. Currently tests the untrusted
5975 certificates for consistency with the verify purpose (which is set
5976 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5978 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5979 this is because it will reject chains with invalid extensions whereas
5980 every previous version of OpenSSL and SSLeay made no checks at all.
5982 Trust code: checks the root CA for the relevant trust settings. Trust
5983 settings have an initial value consistent with the verify purpose: e.g.
5984 if the verify purpose is for SSL client use it expects the CA to be
5985 trusted for SSL client use. However the default value can be changed to
5986 permit custom trust settings: one example of this would be to only trust
5987 certificates from a specific "secure" set of CAs.
5989 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5990 which should be used for version portability: especially since the
5991 verify structure is likely to change more often now.
5993 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5994 to set them. If not set then assume SSL clients will verify SSL servers
5997 Two new options to the verify program: -untrusted allows a set of
5998 untrusted certificates to be passed in and -purpose which sets the
5999 intended purpose of the certificate. If a purpose is set then the
6000 new chain verify code is used to check extension consistency.
6003 *) Support for the authority information access extension.
6006 *) Modify RSA and DSA PEM read routines to transparently handle
6007 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6008 public keys in a format compatible with certificate
6009 SubjectPublicKeyInfo structures. Unfortunately there were already
6010 functions called *_PublicKey_* which used various odd formats so
6011 these are retained for compatibility: however the DSA variants were
6012 never in a public release so they have been deleted. Changed dsa/rsa
6013 utilities to handle the new format: note no releases ever handled public
6014 keys so we should be OK.
6016 The primary motivation for this change is to avoid the same fiasco
6017 that dogs private keys: there are several incompatible private key
6018 formats some of which are standard and some OpenSSL specific and
6019 require various evil hacks to allow partial transparent handling and
6020 even then it doesn't work with DER formats. Given the option anything
6021 other than PKCS#8 should be dumped: but the other formats have to
6022 stay in the name of compatibility.
6024 With public keys and the benefit of hindsight one standard format
6025 is used which works with EVP_PKEY, RSA or DSA structures: though
6026 it clearly returns an error if you try to read the wrong kind of key.
6028 Added a -pubkey option to the 'x509' utility to output the public key.
6029 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6030 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6031 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6032 that do the same as the EVP_PKEY_assign_*() except they up the
6033 reference count of the added key (they don't "swallow" the
6037 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6038 CRLs would fail if the file contained no certificates or no CRLs:
6039 added a new function to read in both types and return the number
6040 read: this means that if none are read it will be an error. The
6041 DER versions of the certificate and CRL reader would always fail
6042 because it isn't possible to mix certificates and CRLs in DER format
6043 without choking one or the other routine. Changed this to just read
6044 a certificate: this is the best we can do. Also modified the code
6045 in apps/verify.c to take notice of return codes: it was previously
6046 attempting to read in certificates from NULL pointers and ignoring
6047 any errors: this is one reason why the cert and CRL reader seemed
6048 to work. It doesn't check return codes from the default certificate
6049 routines: these may well fail if the certificates aren't installed.
6052 *) Code to support otherName option in GeneralName.
6055 *) First update to verify code. Change the verify utility
6056 so it warns if it is passed a self signed certificate:
6057 for consistency with the normal behaviour. X509_verify
6058 has been modified to it will now verify a self signed
6059 certificate if *exactly* the same certificate appears
6060 in the store: it was previously impossible to trust a
6061 single self signed certificate. This means that:
6062 openssl verify ss.pem
6063 now gives a warning about a self signed certificate but
6064 openssl verify -CAfile ss.pem ss.pem
6068 *) For servers, store verify_result in SSL_SESSION data structure
6069 (and add it to external session representation).
6070 This is needed when client certificate verifications fails,
6071 but an application-provided verification callback (set by
6072 SSL_CTX_set_cert_verify_callback) allows accepting the session
6073 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6074 but returns 1): When the session is reused, we have to set
6075 ssl->verify_result to the appropriate error code to avoid
6077 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6079 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6080 case in PKCS7_dataInit() where the signed PKCS7 structure
6081 didn't contain any existing data because it was being created.
6082 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6084 *) Add a salt to the key derivation routines in enc.c. This
6085 forms the first 8 bytes of the encrypted file. Also add a
6086 -S option to allow a salt to be input on the command line.
6089 *) New function X509_cmp(). Oddly enough there wasn't a function
6090 to compare two certificates. We do this by working out the SHA1
6091 hash and comparing that. X509_cmp() will be needed by the trust
6095 *) SSL_get1_session() is like SSL_get_session(), but increments
6096 the reference count in the SSL_SESSION returned.
6097 [Geoff Thorpe <geoff@eu.c2.net>]
6099 *) Fix for 'req': it was adding a null to request attributes.
6100 Also change the X509_LOOKUP and X509_INFO code to handle
6101 certificate auxiliary information.
6104 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6108 *) Add the possibility to add extra information to the memory leak
6109 detecting output, to form tracebacks, showing from where each
6110 allocation was originated: CRYPTO_push_info("constant string") adds
6111 the string plus current file name and line number to a per-thread
6112 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6113 is like calling CYRPTO_pop_info() until the stack is empty.
6114 Also updated memory leak detection code to be multi-thread-safe.
6117 *) Add options -text and -noout to pkcs7 utility and delete the
6118 encryption options which never did anything. Update docs.
6121 *) Add options to some of the utilities to allow the pass phrase
6122 to be included on either the command line (not recommended on
6123 OSes like Unix) or read from the environment. Update the
6124 manpages and fix a few bugs.
6127 *) Add a few manpages for some of the openssl commands.
6130 *) Fix the -revoke option in ca. It was freeing up memory twice,
6131 leaking and not finding already revoked certificates.
6134 *) Extensive changes to support certificate auxiliary information.
6135 This involves the use of X509_CERT_AUX structure and X509_AUX
6136 functions. An X509_AUX function such as PEM_read_X509_AUX()
6137 can still read in a certificate file in the usual way but it
6138 will also read in any additional "auxiliary information". By
6139 doing things this way a fair degree of compatibility can be
6140 retained: existing certificates can have this information added
6141 using the new 'x509' options.
6143 Current auxiliary information includes an "alias" and some trust
6144 settings. The trust settings will ultimately be used in enhanced
6145 certificate chain verification routines: currently a certificate
6146 can only be trusted if it is self signed and then it is trusted
6150 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6151 The problem was that one of the replacement routines had not been working
6152 since SSLeay releases. For now the offending routine has been replaced
6153 with non-optimised assembler. Even so, this now gives around 95%
6154 performance improvement for 1024 bit RSA signs.
6157 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6158 handling. Most clients have the effective key size in bits equal to
6159 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6160 A few however don't do this and instead use the size of the decrypted key
6161 to determine the RC2 key length and the AlgorithmIdentifier to determine
6162 the effective key length. In this case the effective key length can still
6163 be 40 bits but the key length can be 168 bits for example. This is fixed
6164 by manually forcing an RC2 key into the EVP_PKEY structure because the
6165 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6166 the key length and effective key length are equal.
6169 *) Add a bunch of functions that should simplify the creation of
6170 X509_NAME structures. Now you should be able to do:
6171 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6172 and have it automatically work out the correct field type and fill in
6173 the structures. The more adventurous can try:
6174 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6175 and it will (hopefully) work out the correct multibyte encoding.
6178 *) Change the 'req' utility to use the new field handling and multibyte
6179 copy routines. Before the DN field creation was handled in an ad hoc
6180 way in req, ca, and x509 which was rather broken and didn't support
6181 BMPStrings or UTF8Strings. Since some software doesn't implement
6182 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6183 using the dirstring_type option. See the new comment in the default
6184 openssl.cnf for more info.
6187 *) Make crypto/rand/md_rand.c more robust:
6188 - Assure unique random numbers after fork().
6189 - Make sure that concurrent threads access the global counter and
6190 md serializably so that we never lose entropy in them
6191 or use exactly the same state in multiple threads.
6192 Access to the large state is not always serializable because
6193 the additional locking could be a performance killer, and
6194 md should be large enough anyway.
6197 *) New file apps/app_rand.c with commonly needed functionality
6198 for handling the random seed file.
6200 Use the random seed file in some applications that previously did not:
6202 dsaparam -genkey (which also ignored its '-rand' option),
6205 x509 (when signing).
6206 Except on systems with /dev/urandom, it is crucial to have a random
6207 seed file at least for key creation, DSA signing, and for DH exchanges;
6208 for RSA signatures we could do without one.
6210 gendh and gendsa (unlike genrsa) used to read only the first byte
6211 of each file listed in the '-rand' option. The function as previously
6212 found in genrsa is now in app_rand.c and is used by all programs
6213 that support '-rand'.
6216 *) In RAND_write_file, use mode 0600 for creating files;
6217 don't just chmod when it may be too late.
6220 *) Report an error from X509_STORE_load_locations
6221 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6224 *) New function ASN1_mbstring_copy() this copies a string in either
6225 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6226 into an ASN1_STRING type. A mask of permissible types is passed
6227 and it chooses the "minimal" type to use or an error if not type
6231 *) Add function equivalents to the various macros in asn1.h. The old
6232 macros are retained with an M_ prefix. Code inside the library can
6233 use the M_ macros. External code (including the openssl utility)
6234 should *NOT* in order to be "shared library friendly".
6237 *) Add various functions that can check a certificate's extensions
6238 to see if it usable for various purposes such as SSL client,
6239 server or S/MIME and CAs of these types. This is currently
6240 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6241 verification. Also added a -purpose flag to x509 utility to
6242 print out all the purposes.
6245 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6249 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6250 for, obtain and decode and extension and obtain its critical flag.
6251 This allows all the necessary extension code to be handled in a
6252 single function call.
6255 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6256 platforms. See crypto/rc4/rc4_enc.c for further details.
6259 *) New -noout option to asn1parse. This causes no output to be produced
6260 its main use is when combined with -strparse and -out to extract data
6261 from a file (which may not be in ASN.1 format).
6264 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6265 when producing the local key id.
6266 [Richard Levitte <levitte@stacken.kth.se>]
6268 *) New option -dhparam in s_server. This allows a DH parameter file to be
6269 stated explicitly. If it is not stated then it tries the first server
6270 certificate file. The previous behaviour hard coded the filename
6274 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6275 a public key to be input or output. For example:
6276 openssl rsa -in key.pem -pubout -out pubkey.pem
6277 Also added necessary DSA public key functions to handle this.
6280 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6281 in the message. This was handled by allowing
6282 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6283 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6285 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6286 to the end of the strings whereas this didn't. This would cause problems
6287 if strings read with d2i_ASN1_bytes() were later modified.
6288 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6290 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6291 data and it contains EOF it will end up returning an error. This is
6292 caused by input 46 bytes long. The cause is due to the way base64
6293 BIOs find the start of base64 encoded data. They do this by trying a
6294 trial decode on each line until they find one that works. When they
6295 do a flag is set and it starts again knowing it can pass all the
6296 data directly through the decoder. Unfortunately it doesn't reset
6297 the context it uses. This means that if EOF is reached an attempt
6298 is made to pass two EOFs through the context and this causes the
6299 resulting error. This can also cause other problems as well. As is
6300 usual with these problems it takes *ages* to find and the fix is
6301 trivial: move one line.
6302 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6304 *) Ugly workaround to get s_client and s_server working under Windows. The
6305 old code wouldn't work because it needed to select() on sockets and the
6306 tty (for keypresses and to see if data could be written). Win32 only
6307 supports select() on sockets so we select() with a 1s timeout on the
6308 sockets and then see if any characters are waiting to be read, if none
6309 are present then we retry, we also assume we can always write data to
6310 the tty. This isn't nice because the code then blocks until we've
6311 received a complete line of data and it is effectively polling the
6312 keyboard at 1s intervals: however it's quite a bit better than not
6313 working at all :-) A dedicated Windows application might handle this
6314 with an event loop for example.
6317 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6318 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6319 will be called when RSA_sign() and RSA_verify() are used. This is useful
6320 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6321 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6322 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6323 This necessitated the support of an extra signature type NID_md5_sha1
6324 for SSL signatures and modifications to the SSL library to use it instead
6325 of calling RSA_public_decrypt() and RSA_private_encrypt().
6328 *) Add new -verify -CAfile and -CApath options to the crl program, these
6329 will lookup a CRL issuers certificate and verify the signature in a
6330 similar way to the verify program. Tidy up the crl program so it
6331 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6332 less strict. It will now permit CRL extensions even if it is not
6333 a V2 CRL: this will allow it to tolerate some broken CRLs.
6336 *) Initialize all non-automatic variables each time one of the openssl
6337 sub-programs is started (this is necessary as they may be started
6338 multiple times from the "OpenSSL>" prompt).
6339 [Lennart Bang, Bodo Moeller]
6341 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6342 removing all other RSA functionality (this is what NO_RSA does). This
6343 is so (for example) those in the US can disable those operations covered
6344 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6348 *) Non-copying interface to BIO pairs.
6349 (still largely untested)
6352 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6353 ASCII string. This was handled independently in various places before.
6356 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6357 UTF8 strings a character at a time.
6360 *) Use client_version from client hello to select the protocol
6361 (s23_srvr.c) and for RSA client key exchange verification
6362 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6365 *) Add various utility functions to handle SPKACs, these were previously
6366 handled by poking round in the structure internals. Added new function
6367 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6368 print, verify and generate SPKACs. Based on an original idea from
6369 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6372 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6375 *) Allow the config file extension section to be overwritten on the
6376 command line. Based on an original idea from Massimiliano Pala
6377 <madwolf@comune.modena.it>. The new option is called -extensions
6378 and can be applied to ca, req and x509. Also -reqexts to override
6379 the request extensions in req and -crlexts to override the crl extensions
6383 *) Add new feature to the SPKAC handling in ca. Now you can include
6384 the same field multiple times by preceding it by "XXXX." for example:
6387 this is the same syntax as used in the req config file.
6390 *) Allow certificate extensions to be added to certificate requests. These
6391 are specified in a 'req_extensions' option of the req section of the
6392 config file. They can be printed out with the -text option to req but
6393 are otherwise ignored at present.
6396 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6397 data read consists of only the final block it would not decrypted because
6398 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6399 A misplaced 'break' also meant the decrypted final block might not be
6400 copied until the next read.
6403 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6404 a few extra parameters to the DH structure: these will be useful if
6405 for example we want the value of 'q' or implement X9.42 DH.
6408 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6409 provides hooks that allow the default DSA functions or functions on a
6410 "per key" basis to be replaced. This allows hardware acceleration and
6411 hardware key storage to be handled without major modification to the
6412 library. Also added low level modexp hooks and CRYPTO_EX structure and
6413 associated functions.
6416 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6417 as "read only": it can't be written to and the buffer it points to will
6418 not be freed. Reading from a read only BIO is much more efficient than
6419 a normal memory BIO. This was added because there are several times when
6420 an area of memory needs to be read from a BIO. The previous method was
6421 to create a memory BIO and write the data to it, this results in two
6422 copies of the data and an O(n^2) reading algorithm. There is a new
6423 function BIO_new_mem_buf() which creates a read only memory BIO from
6424 an area of memory. Also modified the PKCS#7 routines to use read only
6428 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6429 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6430 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6431 but a retry condition occured while trying to read the rest.
6434 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6435 NID_pkcs7_encrypted by default: this was wrong since this should almost
6436 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6437 the encrypted data type: this is a more sensible place to put it and it
6438 allows the PKCS#12 code to be tidied up that duplicated this
6442 *) Changed obj_dat.pl script so it takes its input and output files on
6443 the command line. This should avoid shell escape redirection problems
6447 *) Initial support for certificate extension requests, these are included
6448 in things like Xenroll certificate requests. Included functions to allow
6449 extensions to be obtained and added.
6452 *) -crlf option to s_client and s_server for sending newlines as
6453 CRLF (as required by many protocols).
6456 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6458 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6459 [Ralf S. Engelschall]
6461 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6462 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6464 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6468 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6469 DH parameters/keys (q is lost during that conversion, but the resulting
6470 DH parameters contain its length).
6472 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6473 much faster than DH_generate_parameters (which creates parameters
6474 where p = 2*q + 1), and also the smaller q makes DH computations
6475 much more efficient (160-bit exponentiation instead of 1024-bit
6476 exponentiation); so this provides a convenient way to support DHE
6477 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6478 utter importance to use
6479 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6481 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6482 when such DH parameters are used, because otherwise small subgroup
6483 attacks may become possible!
6486 *) Avoid memory leak in i2d_DHparams.
6489 *) Allow the -k option to be used more than once in the enc program:
6490 this allows the same encrypted message to be read by multiple recipients.
6493 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6494 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6495 it will always use the numerical form of the OID, even if it has a short
6499 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6500 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6501 otherwise bn_mod_exp was called. In the case of hardware keys for example
6502 no private key components need be present and it might store extra data
6503 in the RSA structure, which cannot be accessed from bn_mod_exp.
6504 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6505 private key operations.
6508 *) Added support for SPARC Linux.
6511 *) pem_password_cb function type incompatibly changed from
6512 typedef int pem_password_cb(char *buf, int size, int rwflag);
6514 ....(char *buf, int size, int rwflag, void *userdata);
6515 so that applications can pass data to their callbacks:
6516 The PEM[_ASN1]_{read,write}... functions and macros now take an
6517 additional void * argument, which is just handed through whenever
6518 the password callback is called.
6519 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6521 New function SSL_CTX_set_default_passwd_cb_userdata.
6523 Compatibility note: As many C implementations push function arguments
6524 onto the stack in reverse order, the new library version is likely to
6525 interoperate with programs that have been compiled with the old
6526 pem_password_cb definition (PEM_whatever takes some data that
6527 happens to be on the stack as its last argument, and the callback
6528 just ignores this garbage); but there is no guarantee whatsoever that
6531 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6532 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6533 problems not only on Windows, but also on some Unix platforms.
6534 To avoid problematic command lines, these definitions are now in an
6535 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6536 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6539 *) MIPS III/IV assembler module is reimplemented.
6542 *) More DES library cleanups: remove references to srand/rand and
6543 delete an unused file.
6546 *) Add support for the the free Netwide assembler (NASM) under Win32,
6547 since not many people have MASM (ml) and it can be hard to obtain.
6548 This is currently experimental but it seems to work OK and pass all
6549 the tests. Check out INSTALL.W32 for info.
6552 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6553 without temporary keys kept an extra copy of the server key,
6554 and connections with temporary keys did not free everything in case
6558 *) New function RSA_check_key and new openssl rsa option -check
6559 for verifying the consistency of RSA keys.
6560 [Ulf Moeller, Bodo Moeller]
6562 *) Various changes to make Win32 compile work:
6563 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6564 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6565 comparison" warnings.
6566 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6569 *) Add a debugging option to PKCS#5 v2 key generation function: when
6570 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6571 derived keys are printed to stderr.
6574 *) Copy the flags in ASN1_STRING_dup().
6575 [Roman E. Pavlov <pre@mo.msk.ru>]
6577 *) The x509 application mishandled signing requests containing DSA
6578 keys when the signing key was also DSA and the parameters didn't match.
6580 It was supposed to omit the parameters when they matched the signing key:
6581 the verifying software was then supposed to automatically use the CA's
6582 parameters if they were absent from the end user certificate.
6584 Omitting parameters is no longer recommended. The test was also
6585 the wrong way round! This was probably due to unusual behaviour in
6586 EVP_cmp_parameters() which returns 1 if the parameters match.
6587 This meant that parameters were omitted when they *didn't* match and
6588 the certificate was useless. Certificates signed with 'ca' didn't have
6590 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6592 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6593 The interface is as follows:
6594 Applications can use
6595 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6596 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6597 "off" is now the default.
6598 The library internally uses
6599 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6600 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6601 to disable memory-checking temporarily.
6603 Some inconsistent states that previously were possible (and were
6604 even the default) are now avoided.
6606 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6607 with each memory chunk allocated; this is occasionally more helpful
6608 than just having a counter.
6610 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6612 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6616 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6617 which largely parallels "options", but is for changing API behaviour,
6618 whereas "options" are about protocol behaviour.
6619 Initial "mode" flags are:
6621 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6622 a single record has been written.
6623 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6624 retries use the same buffer location.
6625 (But all of the contents must be
6629 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6632 *) Fix problems with no-hmac etc.
6633 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6635 *) New functions RSA_get_default_method(), RSA_set_method() and
6636 RSA_get_method(). These allows replacement of RSA_METHODs without having
6637 to mess around with the internals of an RSA structure.
6640 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6641 Also really enable memory leak checks in openssl.c and in some
6643 [Chad C. Mulligan, Bodo Moeller]
6645 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6646 up the length of negative integers. This has now been simplified to just
6647 store the length when it is first determined and use it later, rather
6648 than trying to keep track of where data is copied and updating it to
6650 [Steve Henson, reported by Brien Wheeler
6651 <bwheeler@authentica-security.com>]
6653 *) Add a new function PKCS7_signatureVerify. This allows the verification
6654 of a PKCS#7 signature but with the signing certificate passed to the
6655 function itself. This contrasts with PKCS7_dataVerify which assumes the
6656 certificate is present in the PKCS#7 structure. This isn't always the
6657 case: certificates can be omitted from a PKCS#7 structure and be
6658 distributed by "out of band" means (such as a certificate database).
6661 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6662 function prototypes in pem.h, also change util/mkdef.pl to add the
6663 necessary function names.
6666 *) mk1mf.pl (used by Windows builds) did not properly read the
6667 options set by Configure in the top level Makefile, and Configure
6668 was not even able to write more than one option correctly.
6669 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6672 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6673 file to be loaded from a BIO or FILE pointer. The BIO version will
6674 for example allow memory BIOs to contain config info.
6677 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6678 Whoever hopes to achieve shared-library compatibility across versions
6679 must use this, not the compile-time macro.
6680 (Exercise 0.9.4: Which is the minimum library version required by
6682 Note: All this applies only to multi-threaded programs, others don't
6686 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6687 through a BIO pair triggered the default case, i.e.
6688 SSLerr(...,SSL_R_UNKNOWN_STATE).
6691 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6692 can use the SSL library even if none of the specific BIOs is
6696 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6697 for the encoded length.
6698 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6700 *) Add initial documentation of the X509V3 functions.
6703 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6704 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6705 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6706 secure PKCS#8 private key format with a high iteration count.
6709 *) Fix determination of Perl interpreter: A perl or perl5
6710 _directory_ in $PATH was also accepted as the interpreter.
6711 [Ralf S. Engelschall]
6713 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6714 wrong with it but it was very old and did things like calling
6715 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6719 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6720 to use the new extension code.
6723 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6724 with macros. This should make it easier to change their form, add extra
6725 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6729 *) Add to configuration table a new entry that can specify an alternative
6730 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6731 according to Mark Crispin <MRC@Panda.COM>.
6735 *) DES CBC did not update the IV. Weird.
6738 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6739 Changing the behaviour of the former might break existing programs --
6740 where IV updating is needed, des_ncbc_encrypt can be used.
6743 *) When bntest is run from "make test" it drives bc to check its
6744 calculations, as well as internally checking them. If an internal check
6745 fails, it needs to cause bc to give a non-zero result or make test carries
6746 on without noticing the failure. Fixed.
6749 *) DES library cleanups.
6752 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6753 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6754 ciphers. NOTE: although the key derivation function has been verified
6755 against some published test vectors it has not been extensively tested
6756 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6760 *) Instead of "mkdir -p", which is not fully portable, use new
6761 Perl script "util/mkdir-p.pl".
6764 *) Rewrite the way password based encryption (PBE) is handled. It used to
6765 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6766 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6767 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6768 the 'parameter' field of the AlgorithmIdentifier is passed to the
6769 underlying key generation function so it must do its own ASN1 parsing.
6770 This has also changed the EVP_PBE_CipherInit() function which now has a
6771 'parameter' argument instead of literal salt and iteration count values
6772 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6775 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6776 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6777 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6778 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6779 value was just used as a "magic string" and not used directly its
6780 value doesn't matter.
6783 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6787 *) "linux-sparc64" configuration (ultrapenguin).
6788 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6789 "linux-sparc" configuration.
6790 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6792 *) config now generates no-xxx options for missing ciphers.
6795 *) Support the EBCDIC character set (work in progress).
6796 File ebcdic.c not yet included because it has a different license.
6797 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6799 *) Support BS2000/OSD-POSIX.
6800 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6802 *) Make callbacks for key generation use void * instead of char *.
6805 *) Make S/MIME samples compile (not yet tested).
6808 *) Additional typesafe stacks.
6811 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6815 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6817 *) New configuration variant "sco5-gcc".
6819 *) Updated some demos.
6820 [Sean O Riordain, Wade Scholine]
6822 *) Add missing BIO_free at exit of pkcs12 application.
6825 *) Fix memory leak in conf.c.
6828 *) Updates for Win32 to assembler version of MD5.
6831 *) Set #! path to perl in apps/der_chop to where we found it
6832 instead of using a fixed path.
6835 *) SHA library changes for irix64-mips4-cc.
6838 *) Improvements for VMS support.
6842 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6844 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6845 This also avoids the problems with SC4.2 and unpatched SC5.
6846 [Andy Polyakov <appro@fy.chalmers.se>]
6848 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6849 These are required because of the typesafe stack would otherwise break
6850 existing code. If old code used a structure member which used to be STACK
6851 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6852 sk_num or sk_value it would produce an error because the num, data members
6853 are not present in STACK_OF. Now it just produces a warning. sk_set
6854 replaces the old method of assigning a value to sk_value
6855 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6856 that does this will no longer work (and should use sk_set instead) but
6857 this could be regarded as a "questionable" behaviour anyway.
6860 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6861 correctly handle encrypted S/MIME data.
6864 *) Change type of various DES function arguments from des_cblock
6865 (which means, in function argument declarations, pointer to char)
6866 to des_cblock * (meaning pointer to array with 8 char elements),
6867 which allows the compiler to do more typechecking; it was like
6868 that back in SSLeay, but with lots of ugly casts.
6870 Introduce new type const_des_cblock.
6873 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6874 problems: find RecipientInfo structure that matches recipient certificate
6875 and initialise the ASN1 structures properly based on passed cipher.
6878 *) Belatedly make the BN tests actually check the results.
6881 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6882 to and from BNs: it was completely broken. New compilation option
6883 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6884 key elements as negative integers.
6887 *) Reorganize and speed up MD5.
6888 [Andy Polyakov <appro@fy.chalmers.se>]
6891 [Richard Levitte <richard@levitte.org>]
6893 *) New option -out to asn1parse to allow the parsed structure to be
6894 output to a file. This is most useful when combined with the -strparse
6895 option to examine the output of things like OCTET STRINGS.
6898 *) Make SSL library a little more fool-proof by not requiring any longer
6899 that SSL_set_{accept,connect}_state be called before
6900 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6901 in many applications because usually everything *appeared* to work as
6902 intended anyway -- now it really works as intended).
6905 *) Move openssl.cnf out of lib/.
6908 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6909 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6910 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6911 [Ralf S. Engelschall]
6913 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6914 handle PKCS#7 enveloped data properly.
6915 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6917 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6918 copying pointers. The cert_st handling is changed by this in
6919 various ways (and thus what used to be known as ctx->default_cert
6920 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6921 any longer when s->cert does not give us what we need).
6922 ssl_cert_instantiate becomes obsolete by this change.
6923 As soon as we've got the new code right (possibly it already is?),
6924 we have solved a couple of bugs of the earlier code where s->cert
6925 was used as if it could not have been shared with other SSL structures.
6927 Note that using the SSL API in certain dirty ways now will result
6928 in different behaviour than observed with earlier library versions:
6929 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6930 does not influence s as it used to.
6932 In order to clean up things more thoroughly, inside SSL_SESSION
6933 we don't use CERT any longer, but a new structure SESS_CERT
6934 that holds per-session data (if available); currently, this is
6935 the peer's certificate chain and, for clients, the server's certificate
6936 and temporary key. CERT holds only those values that can have
6937 meaningful defaults in an SSL_CTX.
6940 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6941 from the internal representation. Various PKCS#7 fixes: remove some
6942 evil casts and set the enc_dig_alg field properly based on the signing
6946 *) Allow PKCS#12 password to be set from the command line or the
6947 environment. Let 'ca' get its config file name from the environment
6948 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6952 *) Allow certificate policies extension to use an IA5STRING for the
6953 organization field. This is contrary to the PKIX definition but
6954 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6958 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6959 without disallowing inline assembler and the like for non-pedantic builds.
6962 *) Support Borland C++ builder.
6963 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6968 *) SHA-1 cleanups and performance enhancements.
6969 [Andy Polyakov <appro@fy.chalmers.se>]
6971 *) Sparc v8plus assembler for the bignum library.
6972 [Andy Polyakov <appro@fy.chalmers.se>]
6974 *) Accept any -xxx and +xxx compiler options in Configure.
6977 *) Update HPUX configuration.
6980 *) Add missing sk_<type>_unshift() function to safestack.h
6981 [Ralf S. Engelschall]
6983 *) New function SSL_CTX_use_certificate_chain_file that sets the
6984 "extra_cert"s in addition to the certificate. (This makes sense
6985 only for "PEM" format files, as chains as a whole are not
6989 *) Support verify_depth from the SSL API.
6990 x509_vfy.c had what can be considered an off-by-one-error:
6991 Its depth (which was not part of the external interface)
6992 was actually counting the number of certificates in a chain;
6993 now it really counts the depth.
6996 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6997 instead of X509err, which often resulted in confusing error
6998 messages since the error codes are not globally unique
6999 (e.g. an alleged error in ssl3_accept when a certificate
7000 didn't match the private key).
7002 *) New function SSL_CTX_set_session_id_context that allows to set a default
7003 value (so that you don't need SSL_set_session_id_context for each
7004 connection using the SSL_CTX).
7007 *) OAEP decoding bug fix.
7010 *) Support INSTALL_PREFIX for package builders, as proposed by
7014 *) New Configure options "threads" and "no-threads". For systems
7015 where the proper compiler options are known (currently Solaris
7016 and Linux), "threads" is the default.
7019 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7022 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7023 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7024 such as /usr/local/bin.
7027 *) "make linux-shared" to build shared libraries.
7028 [Niels Poppe <niels@netbox.org>]
7030 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7033 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7034 extension adding in x509 utility.
7037 *) Remove NOPROTO sections and error code comments.
7040 *) Partial rewrite of the DEF file generator to now parse the ANSI
7044 *) New Configure options --prefix=DIR and --openssldir=DIR.
7047 *) Complete rewrite of the error code script(s). It is all now handled
7048 by one script at the top level which handles error code gathering,
7049 header rewriting and C source file generation. It should be much better
7050 than the old method: it now uses a modified version of Ulf's parser to
7051 read the ANSI prototypes in all header files (thus the old K&R definitions
7052 aren't needed for error creation any more) and do a better job of
7053 translating function codes into names. The old 'ASN1 error code imbedded
7054 in a comment' is no longer necessary and it doesn't use .err files which
7055 have now been deleted. Also the error code call doesn't have to appear all
7056 on one line (which resulted in some large lines...).
7059 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7062 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7063 0 (which usually indicates a closed connection), but continue reading.
7066 *) Fix some race conditions.
7069 *) Add support for CRL distribution points extension. Add Certificate
7070 Policies and CRL distribution points documentation.
7073 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7076 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7077 8 of keying material. Merlin has also confirmed interop with this fix
7078 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7079 [Merlin Hughes <merlin@baltimore.ie>]
7081 *) Fix lots of warnings.
7082 [Richard Levitte <levitte@stacken.kth.se>]
7084 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7085 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7086 [Richard Levitte <levitte@stacken.kth.se>]
7088 *) Fix problems with sizeof(long) == 8.
7089 [Andy Polyakov <appro@fy.chalmers.se>]
7091 *) Change functions to ANSI C.
7094 *) Fix typos in error codes.
7095 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7097 *) Remove defunct assembler files from Configure.
7100 *) SPARC v8 assembler BIGNUM implementation.
7101 [Andy Polyakov <appro@fy.chalmers.se>]
7103 *) Support for Certificate Policies extension: both print and set.
7104 Various additions to support the r2i method this uses.
7107 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7108 return a const string when you are expecting an allocated buffer.
7111 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7112 types DirectoryString and DisplayText.
7115 *) Add code to allow r2i extensions to access the configuration database,
7116 add an LHASH database driver and add several ctx helper functions.
7119 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7120 fail when they extended the size of a BIGNUM.
7123 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7124 support typesafe stack.
7127 *) Fix typo in SSL_[gs]et_options().
7128 [Nils Frostberg <nils@medcom.se>]
7130 *) Delete various functions and files that belonged to the (now obsolete)
7131 old X509V3 handling code.
7134 *) New Configure option "rsaref".
7137 *) Don't auto-generate pem.h.
7140 *) Introduce type-safe ASN.1 SETs.
7143 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7144 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7146 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7147 that links with OpenSSL (well at least cause lots of warnings), but fear
7148 not: the conversion is trivial, and it eliminates loads of evil casts. A
7149 few STACKed things have been converted already. Feel free to convert more.
7150 In the fullness of time, I'll do away with the STACK type altogether.
7153 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7154 specified in <certfile> by updating the entry in the index.txt file.
7155 This way one no longer has to edit the index.txt file manually for
7156 revoking a certificate. The -revoke option does the gory details now.
7157 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7159 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7160 `-text' option at all and this way the `-noout -text' combination was
7161 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7162 [Ralf S. Engelschall]
7164 *) Make sure a corresponding plain text error message exists for the
7165 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7166 verify callback function determined that a certificate was revoked.
7167 [Ralf S. Engelschall]
7169 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7170 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7171 all available cipers including rc5, which was forgotten until now.
7172 In order to let the testing shell script know which algorithms
7173 are available, a new (up to now undocumented) command
7174 "openssl list-cipher-commands" is used.
7177 *) Bugfix: s_client occasionally would sleep in select() when
7178 it should have checked SSL_pending() first.
7181 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7182 the raw DSA values prior to ASN.1 encoding.
7185 *) Tweaks to Configure
7186 [Niels Poppe <niels@netbox.org>]
7188 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7192 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7195 *) New config option to avoid instructions that are illegal on the 80386.
7196 The default code is faster, but requires at least a 486.
7199 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7200 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7201 same as SSL2_VERSION anyway.
7204 *) New "-showcerts" option for s_client.
7207 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7208 application. Various cleanups and fixes.
7211 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7212 modify error routines to work internally. Add error codes and PBE init
7213 to library startup routines.
7216 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7217 packing functions to asn1 and evp. Changed function names and error
7218 codes along the way.
7221 *) PKCS12 integration: and so it begins... First of several patches to
7222 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7223 objects to objects.h
7226 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7227 and display support for Thawte strong extranet extension.
7230 *) Add LinuxPPC support.
7231 [Jeff Dubrule <igor@pobox.org>]
7233 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7234 bn_div_words in alpha.s.
7235 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7237 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7238 OAEP isn't supported when OpenSSL is built with RSAref.
7239 [Ulf Moeller <ulf@fitug.de>]
7241 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7242 so they no longer are missing under -DNOPROTO.
7243 [Soren S. Jorvang <soren@t.dk>]
7246 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7248 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7249 doesn't work when the session is reused. Coming soon!
7252 *) Fix a security hole, that allows sessions to be reused in the wrong
7253 context thus bypassing client cert protection! All software that uses
7254 client certs and session caches in multiple contexts NEEDS PATCHING to
7255 allow session reuse! A fuller solution is in the works.
7256 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7258 *) Some more source tree cleanups (removed obsolete files
7259 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7260 permission on "config" script to be executable) and a fix for the INSTALL
7262 [Ulf Moeller <ulf@fitug.de>]
7264 *) Remove some legacy and erroneous uses of malloc, free instead of
7266 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7268 *) Make rsa_oaep_test return non-zero on error.
7269 [Ulf Moeller <ulf@fitug.de>]
7271 *) Add support for native Solaris shared libraries. Configure
7272 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7273 if someone would make that last step automatic.
7274 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7276 *) ctx_size was not built with the right compiler during "make links". Fixed.
7279 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7280 except NULL ciphers". This means the default cipher list will no longer
7281 enable NULL ciphers. They need to be specifically enabled e.g. with
7282 the string "DEFAULT:eNULL".
7285 *) Fix to RSA private encryption routines: if p < q then it would
7286 occasionally produce an invalid result. This will only happen with
7287 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7290 *) Be less restrictive and allow also `perl util/perlpath.pl
7291 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7292 because this way one can also use an interpreter named `perl5' (which is
7293 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7294 installed as `perl').
7295 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7297 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7298 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7300 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7301 advapi32.lib to Win32 build and change the pem test comparision
7302 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7303 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7304 and crypto/des/ede_cbcm_enc.c.
7307 *) DES quad checksum was broken on big-endian architectures. Fixed.
7310 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7311 Win32 test batch file so it (might) work again. The Win32 test batch file
7312 is horrible: I feel ill....
7315 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7316 in e_os.h. Audit of header files to check ANSI and non ANSI
7317 sections: 10 functions were absent from non ANSI section and not exported
7318 from Windows DLLs. Fixed up libeay.num for new functions.
7321 *) Make `openssl version' output lines consistent.
7322 [Ralf S. Engelschall]
7324 *) Fix Win32 symbol export lists for BIO functions: Added
7325 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7326 to ms/libeay{16,32}.def.
7327 [Ralf S. Engelschall]
7329 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7330 fine under Unix and passes some trivial tests I've now added. But the
7331 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7332 added to make sure no one expects that this stuff really works in the
7333 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7334 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7336 [Ralf S. Engelschall]
7338 *) Fix the generation of two part addresses in perl.
7339 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7341 *) Add config entry for Linux on MIPS.
7342 [John Tobey <jtobey@channel1.com>]
7344 *) Make links whenever Configure is run, unless we are on Windoze.
7347 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7348 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7352 *) Add a useful kludge to allow package maintainers to specify compiler and
7353 other platforms details on the command line without having to patch the
7354 Configure script everytime: One now can use ``perl Configure
7355 <id>:<details>'', i.e. platform ids are allowed to have details appended
7356 to them (seperated by colons). This is treated as there would be a static
7357 pre-configured entry in Configure's %table under key <id> with value
7358 <details> and ``perl Configure <id>'' is called. So, when you want to
7359 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7360 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7361 now, which overrides the FreeBSD-elf entry on-the-fly.
7362 [Ralf S. Engelschall]
7364 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7367 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7368 on the `perl Configure ...' command line. This way one can compile
7369 OpenSSL libraries with Position Independent Code (PIC) which is needed
7370 for linking it into DSOs.
7371 [Ralf S. Engelschall]
7373 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7377 *) Cleaned up the LICENSE document: The official contact for any license
7378 questions now is the OpenSSL core team under openssl-core@openssl.org.
7379 And add a paragraph about the dual-license situation to make sure people
7380 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7381 to the OpenSSL toolkit.
7382 [Ralf S. Engelschall]
7384 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7385 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7386 Additonally cleaned up the `make links' target: Remove unnecessary
7387 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7388 to speed processing and no longer clutter the display with confusing
7389 stuff. Instead only the actually done links are displayed.
7390 [Ralf S. Engelschall]
7392 *) Permit null encryption ciphersuites, used for authentication only. It used
7393 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7394 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7398 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7399 signed attributes when verifying signatures (this would break them),
7400 the detached data encoding was wrong and public keys obtained using
7401 X509_get_pubkey() weren't freed.
7404 *) Add text documentation for the BUFFER functions. Also added a work around
7405 to a Win95 console bug. This was triggered by the password read stuff: the
7406 last character typed gets carried over to the next fread(). If you were
7407 generating a new cert request using 'req' for example then the last
7408 character of the passphrase would be CR which would then enter the first
7412 *) Added the new `Includes OpenSSL Cryptography Software' button as
7413 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7414 button and can be used by applications based on OpenSSL to show the
7415 relationship to the OpenSSL project.
7416 [Ralf S. Engelschall]
7418 *) Remove confusing variables in function signatures in files
7419 ssl/ssl_lib.c and ssl/ssl.h.
7420 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7422 *) Don't install bss_file.c under PREFIX/include/
7423 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7425 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7426 functions that return function pointers and has support for NT specific
7427 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7428 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7429 unsigned to signed types: this was killing the Win32 compile.
7432 *) Add new certificate file to stack functions,
7433 SSL_add_dir_cert_subjects_to_stack() and
7434 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7435 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7436 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7437 This means that Apache-SSL and similar packages don't have to mess around
7438 to add as many CAs as they want to the preferred list.
7441 *) Experiment with doxygen documentation. Currently only partially applied to
7443 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7444 openssl.doxy as the configuration file.
7447 *) Get rid of remaining C++-style comments which strict C compilers hate.
7448 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7450 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7451 compiled in by default: it has problems with large keys.
7454 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7455 DH private keys and/or callback functions which directly correspond to
7456 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7457 is needed for applications which have to configure certificates on a
7458 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7460 For the RSA certificate situation is makes no difference, but
7461 for the DSA certificate situation this fixes the "no shared cipher"
7462 problem where the OpenSSL cipher selection procedure failed because the
7463 temporary keys were not overtaken from the context and the API provided
7464 no way to reconfigure them.
7465 The new functions now let applications reconfigure the stuff and they
7466 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7467 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7468 non-public-API function ssl_cert_instantiate() is used as a helper
7469 function and also to reduce code redundancy inside ssl_rsa.c.
7470 [Ralf S. Engelschall]
7472 *) Move s_server -dcert and -dkey options out of the undocumented feature
7473 area because they are useful for the DSA situation and should be
7474 recognized by the users.
7475 [Ralf S. Engelschall]
7477 *) Fix the cipher decision scheme for export ciphers: the export bits are
7478 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7479 SSL_EXP_MASK. So, the original variable has to be used instead of the
7480 already masked variable.
7481 [Richard Levitte <levitte@stacken.kth.se>]
7483 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7484 [Richard Levitte <levitte@stacken.kth.se>]
7486 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7487 from `int' to `unsigned int' because it's a length and initialized by
7488 EVP_DigestFinal() which expects an `unsigned int *'.
7489 [Richard Levitte <levitte@stacken.kth.se>]
7491 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7492 script. Instead use the usual Shell->Perl transition trick.
7493 [Ralf S. Engelschall]
7495 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7496 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7497 -noout -modulus' as it's already the case for `openssl rsa -noout
7498 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7499 currently the public key is printed (a decision which was already done by
7500 `openssl dsa -modulus' in the past) which serves a similar purpose.
7501 Additionally the NO_RSA no longer completely removes the whole -modulus
7502 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7504 [Ralf S. Engelschall]
7506 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7507 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7508 [Arne Ansper <arne@ats.cyber.ee>]
7510 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7511 to be added. Now both 'req' and 'ca' can use new objects defined in the
7515 *) Add cool BIO that does syslog (or event log on NT).
7516 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7518 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7519 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7520 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7521 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7524 *) Add preliminary config info for new extension code.
7527 *) Make RSA_NO_PADDING really use no padding.
7528 [Ulf Moeller <ulf@fitug.de>]
7530 *) Generate errors when private/public key check is done.
7533 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7534 for some CRL extensions and new objects added.
7537 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7538 key usage extension and fuller support for authority key id.
7541 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7542 padding method for RSA, which is recommended for new applications in PKCS
7543 #1 v2.0 (RFC 2437, October 1998).
7544 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7545 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7546 against Bleichbacher's attack on RSA.
7547 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7550 *) Updates to the new SSL compression code
7551 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7553 *) Fix so that the version number in the master secret, when passed
7554 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7555 (because the server will not accept higher), that the version number
7556 is 0x03,0x01, not 0x03,0x00
7557 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7559 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7560 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7561 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7564 *) Support for RAW extensions where an arbitrary extension can be
7565 created by including its DER encoding. See apps/openssl.cnf for
7569 *) Make sure latest Perl versions don't interpret some generated C array
7570 code as Perl array code in the crypto/err/err_genc.pl script.
7571 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7573 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7574 not many people have the assembler. Various Win32 compilation fixes and
7575 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7579 *) Modify configure script 'Configure' to automatically create crypto/date.h
7580 file under Win32 and also build pem.h from pem.org. New script
7581 util/mkfiles.pl to create the MINFO file on environments that can't do a
7582 'make files': perl util/mkfiles.pl >MINFO should work.
7585 *) Major rework of DES function declarations, in the pursuit of correctness
7586 and purity. As a result, many evil casts evaporated, and some weirdness,
7587 too. You may find this causes warnings in your code. Zapping your evil
7588 casts will probably fix them. Mostly.
7591 *) Fix for a typo in asn1.h. Bug fix to object creation script
7592 obj_dat.pl. It considered a zero in an object definition to mean
7593 "end of object": none of the objects in objects.h have any zeros
7594 so it wasn't spotted.
7595 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7597 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7598 Masking (CBCM). In the absence of test vectors, the best I have been able
7599 to do is check that the decrypt undoes the encrypt, so far. Send me test
7600 vectors if you have them.
7603 *) Correct calculation of key length for export ciphers (too much space was
7604 allocated for null ciphers). This has not been tested!
7607 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7608 message is now correct (it understands "crypto" and "ssl" on its
7609 command line). There is also now an "update" option. This will update
7610 the util/ssleay.num and util/libeay.num files with any new functions.
7612 perl util/mkdef.pl crypto ssl update
7613 it will update them.
7616 *) Overhauled the Perl interface (perl/*):
7617 - ported BN stuff to OpenSSL's different BN library
7618 - made the perl/ source tree CVS-aware
7619 - renamed the package from SSLeay to OpenSSL (the files still contain
7620 their history because I've copied them in the repository)
7621 - removed obsolete files (the test scripts will be replaced
7622 by better Test::Harness variants in the future)
7623 [Ralf S. Engelschall]
7625 *) First cut for a very conservative source tree cleanup:
7626 1. merge various obsolete readme texts into doc/ssleay.txt
7627 where we collect the old documents and readme texts.
7628 2. remove the first part of files where I'm already sure that we no
7629 longer need them because of three reasons: either they are just temporary
7630 files which were left by Eric or they are preserved original files where
7631 I've verified that the diff is also available in the CVS via "cvs diff
7632 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7633 the crypto/md/ stuff).
7634 [Ralf S. Engelschall]
7636 *) More extension code. Incomplete support for subject and issuer alt
7637 name, issuer and authority key id. Change the i2v function parameters
7638 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7639 what that's for :-) Fix to ASN1 macro which messed up
7640 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7643 *) Preliminary support for ENUMERATED type. This is largely copied from the
7647 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7648 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7650 *) Make sure `make rehash' target really finds the `openssl' program.
7651 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7653 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7654 like to hear about it if this slows down other processors.
7657 *) Add CygWin32 platform information to Configure script.
7658 [Alan Batie <batie@aahz.jf.intel.com>]
7660 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7661 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7663 *) New program nseq to manipulate netscape certificate sequences
7666 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7670 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7671 but the BN code had some problems that would cause failures when
7672 doing certificate verification and some other functions.
7673 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7675 *) Add ASN1 and PEM code to support netscape certificate sequences.
7678 *) Add ASN1 and PEM code to support netscape certificate sequences.
7681 *) Add several PKIX and private extended key usage OIDs.
7684 *) Modify the 'ca' program to handle the new extension code. Modify
7685 openssl.cnf for new extension format, add comments.
7688 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7689 and add a sample to openssl.cnf so req -x509 now adds appropriate
7693 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7694 error code, add initial support to X509_print() and x509 application.
7697 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7698 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7699 stuff is currently isolated and isn't even compiled yet.
7702 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7703 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7704 Removed the versions check from X509 routines when loading extensions:
7705 this allows certain broken certificates that don't set the version
7706 properly to be processed.
7709 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7710 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7711 can still be regenerated with "make depend".
7714 *) Spelling mistake in C version of CAST-128.
7715 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7717 *) Changes to the error generation code. The perl script err-code.pl
7718 now reads in the old error codes and retains the old numbers, only
7719 adding new ones if necessary. It also only changes the .err files if new
7720 codes are added. The makefiles have been modified to only insert errors
7721 when needed (to avoid needlessly modifying header files). This is done
7722 by only inserting errors if the .err file is newer than the auto generated
7723 C file. To rebuild all the error codes from scratch (the old behaviour)
7724 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7725 or delete all the .err files.
7728 *) CAST-128 was incorrectly implemented for short keys. The C version has
7729 been fixed, but is untested. The assembler versions are also fixed, but
7730 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7731 to regenerate it if needed.
7732 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7733 Hagino <itojun@kame.net>]
7735 *) File was opened incorrectly in randfile.c.
7736 [Ulf Möller <ulf@fitug.de>]
7738 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7739 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7740 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7741 al: it's just almost always a UTCTime. Note this patch adds new error
7742 codes so do a "make errors" if there are problems.
7745 *) Correct Linux 1 recognition in config.
7746 [Ulf Möller <ulf@fitug.de>]
7748 *) Remove pointless MD5 hash when using DSA keys in ca.
7749 [Anonymous <nobody@replay.com>]
7751 *) Generate an error if given an empty string as a cert directory. Also
7752 generate an error if handed NULL (previously returned 0 to indicate an
7753 error, but didn't set one).
7754 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7756 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7759 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7760 parameters. This was causing a warning which killed off the Win32 compile.
7763 *) Remove C++ style comments from crypto/bn/bn_local.h.
7764 [Neil Costigan <neil.costigan@celocom.com>]
7766 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7767 based on a text string, looking up short and long names and finally
7768 "dot" format. The "dot" format stuff didn't work. Added new function
7769 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7770 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7771 OID is not part of the table.
7774 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7775 X509_LOOKUP_by_alias().
7778 *) Sort openssl functions by name.
7781 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7782 encryption from sample DSA keys (in case anyone is interested the password
7786 *) Make _all_ *_free functions accept a NULL pointer.
7787 [Frans Heymans <fheymans@isaserver.be>]
7789 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7791 [Anonymous <nobody@replay.com>]
7793 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7794 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7796 *) Don't blow it for numeric -newkey arguments to apps/req.
7797 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7799 *) Temp key "for export" tests were wrong in s3_srvr.c.
7800 [Anonymous <nobody@replay.com>]
7802 *) Add prototype for temp key callback functions
7803 SSL_CTX_set_tmp_{rsa,dh}_callback().
7806 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7807 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7810 *) X509_name_add_entry() freed the wrong thing after an error.
7811 [Arne Ansper <arne@ats.cyber.ee>]
7813 *) rsa_eay.c would attempt to free a NULL context.
7814 [Arne Ansper <arne@ats.cyber.ee>]
7816 *) BIO_s_socket() had a broken should_retry() on Windoze.
7817 [Arne Ansper <arne@ats.cyber.ee>]
7819 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7820 [Arne Ansper <arne@ats.cyber.ee>]
7822 *) Make sure the already existing X509_STORE->depth variable is initialized
7823 in X509_STORE_new(), but document the fact that this variable is still
7824 unused in the certificate verification process.
7825 [Ralf S. Engelschall]
7827 *) Fix the various library and apps files to free up pkeys obtained from
7828 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7831 *) Fix reference counting in X509_PUBKEY_get(). This makes
7832 demos/maurice/example2.c work, amongst others, probably.
7833 [Steve Henson and Ben Laurie]
7835 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7836 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7837 are no longer created. This way we have a single and consistent command
7838 line interface `openssl <command>', similar to `cvs <command>'.
7839 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7841 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7842 BIT STRING wrapper always have zero unused bits.
7845 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7848 *) Make the top-level INSTALL documentation easier to understand.
7851 *) Makefiles updated to exit if an error occurs in a sub-directory
7852 make (including if user presses ^C) [Paul Sutton]
7854 *) Make Montgomery context stuff explicit in RSA data structure.
7857 *) Fix build order of pem and err to allow for generated pem.h.
7860 *) Fix renumbering bug in X509_NAME_delete_entry().
7863 *) Enhanced the err-ins.pl script so it makes the error library number
7864 global and can add a library name. This is needed for external ASN1 and
7865 other error libraries.
7868 *) Fixed sk_insert which never worked properly.
7871 *) Fix ASN1 macros so they can handle indefinite length construted
7872 EXPLICIT tags. Some non standard certificates use these: they can now
7876 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7877 into a single doc/ssleay.txt bundle. This way the information is still
7878 preserved but no longer messes up this directory. Now it's new room for
7879 the new set of documenation files.
7880 [Ralf S. Engelschall]
7882 *) SETs were incorrectly DER encoded. This was a major pain, because they
7883 shared code with SEQUENCEs, which aren't coded the same. This means that
7884 almost everything to do with SETs or SEQUENCEs has either changed name or
7885 number of arguments.
7886 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7888 *) Fix test data to work with the above.
7891 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7892 was already fixed by Eric for 0.9.1 it seems.
7893 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7895 *) Autodetect FreeBSD3.
7898 *) Fix various bugs in Configure. This affects the following platforms:
7902 unixware-2.0-pentium
7906 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7907 before they are needed.
7910 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7914 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7916 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7917 changed SSLeay to OpenSSL in version strings.
7918 [Ralf S. Engelschall]
7920 *) Some fixups to the top-level documents.
7923 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7924 because the symlink to include/ was missing.
7925 [Ralf S. Engelschall]
7927 *) Incorporated the popular no-RSA/DSA-only patches
7928 which allow to compile a RSA-free SSLeay.
7929 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7931 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7932 when "ssleay" is still not found.
7933 [Ralf S. Engelschall]
7935 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7936 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7938 *) Updated the README file.
7939 [Ralf S. Engelschall]
7941 *) Added various .cvsignore files in the CVS repository subdirs
7942 to make a "cvs update" really silent.
7943 [Ralf S. Engelschall]
7945 *) Recompiled the error-definition header files and added
7946 missing symbols to the Win32 linker tables.
7947 [Ralf S. Engelschall]
7949 *) Cleaned up the top-level documents;
7950 o new files: CHANGES and LICENSE
7951 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7952 o merged COPYRIGHT into LICENSE
7953 o removed obsolete TODO file
7954 o renamed MICROSOFT to INSTALL.W32
7955 [Ralf S. Engelschall]
7957 *) Removed dummy files from the 0.9.1b source tree:
7958 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7959 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7960 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7961 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7962 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7963 [Ralf S. Engelschall]
7965 *) Added various platform portability fixes.
7968 *) The Genesis of the OpenSSL rpject:
7969 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7970 Young and Tim J. Hudson created while they were working for C2Net until
7972 [The OpenSSL Project]
7975 Changes between 0.9.0b and 0.9.1b [not released]
7977 *) Updated a few CA certificates under certs/
7980 *) Changed some BIGNUM api stuff.
7983 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7984 DGUX x86, Linux Alpha, etc.
7987 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7988 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7992 *) Add -strparse option to asn1pars program which parses nested
7994 [Dr Stephen Henson <shenson@bigfoot.com>]
7996 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7999 *) DSA fix for "ca" program.
8002 *) Added "-genkey" option to "dsaparam" program.
8005 *) Added RIPE MD160 (rmd160) message digest.
8008 *) Added -a (all) option to "ssleay version" command.
8011 *) Added PLATFORM define which is the id given to Configure.
8014 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8017 *) Extended the ASN.1 parser routines.
8020 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8023 *) Added a BN_CTX to the BN library.
8026 *) Fixed the weak key values in DES library
8029 *) Changed API in EVP library for cipher aliases.
8032 *) Added support for RC2/64bit cipher.
8035 *) Converted the lhash library to the crypto/mem.c functions.
8038 *) Added more recognized ASN.1 object ids.
8041 *) Added more RSA padding checks for SSL/TLS.
8044 *) Added BIO proxy/filter functionality.
8047 *) Added extra_certs to SSL_CTX which can be used
8048 send extra CA certificates to the client in the CA cert chain sending
8049 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8052 *) Now Fortezza is denied in the authentication phase because
8053 this is key exchange mechanism is not supported by SSLeay at all.
8056 *) Additional PKCS1 checks.
8059 *) Support the string "TLSv1" for all TLS v1 ciphers.
8062 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8063 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8066 *) Fixed a few memory leaks.
8069 *) Fixed various code and comment typos.
8072 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8073 bytes sent in the client random.
8074 [Edward Bishop <ebishop@spyglass.com>]