5 Changes between 0.9.8g and 0.9.8h [xx XXX xxxx]
7 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
9 Clear the error queue to ensure that error entries left from
10 older function calls do not interfere with the correct operation.
11 [Lutz Jaenicke, Erik de Castro Lopo]
13 *) Remove root CA certificates of commercial CAs:
15 The OpenSSL project does not recommend any specific CA and does not
16 have any policy with respect to including or excluding any CA.
17 Therefore it does not make any sense to ship an arbitrary selection
18 of root CA certificates with the OpenSSL software.
21 *) RSA OAEP patches to fix two separate invalid memory reads.
22 The first one involves inputs when 'lzero' is greater than
23 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
24 before the beginning of from). The second one involves inputs where
25 the 'db' section contains nothing but zeroes (there is a one-byte
26 invalid read after the end of 'db').
27 [Ivan Nestlerode <inestlerode@us.ibm.com>]
29 *) Partial backport from 0.9.9-dev:
31 Introduce bn_mul_mont (dedicated Montgomery multiplication
32 procedure) as a candidate for BIGNUM assembler implementation.
33 While 0.9.9-dev uses assembler for various architectures, only
34 x86_64 is available by default here in the 0.9.8 branch, and
35 32-bit x86 is available through a compile-time setting.
37 To try the 32-bit x86 assembler implementation, use Configure
38 option "enable-montasm" (which exists only for this backport).
40 As "enable-montasm" for 32-bit x86 disclaims code stability
41 anyway, in this constellation we activate additional code
42 backported from 0.9.9-dev for further performance improvements,
43 namely BN_from_montgomery_word. (To enable this otherwise,
44 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
46 [Andy Polyakov (backport partially by Bodo Moeller)]
48 *) Add TLS session ticket callback. This allows an application to set
49 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
50 values. This is useful for key rollover for example where several key
51 sets may exist with different names.
54 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
55 This was broken until now in 0.9.8 releases, such that the only way
56 a registered ENGINE could be used (assuming it initialises
57 successfully on the host) was to explicitly set it as the default
58 for the relevant algorithms. This is in contradiction with 0.9.7
59 behaviour and the documentation. With this fix, when an ENGINE is
60 registered into a given algorithm's table of implementations, the
61 'uptodate' flag is reset so that auto-discovery will be used next
62 time a new context for that algorithm attempts to select an
64 [Ian Lister (tweaked by Geoff Thorpe)]
66 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
67 implemention in the following ways:
69 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
72 Lack of BER streaming support means one pass streaming processing is
73 only supported if data is detached: setting the streaming flag is
74 ignored for embedded content.
76 CMS support is disabled by default and must be explicitly enabled
77 with the enable-cms configuration option.
80 *) Update the GMP engine glue to do direct copies between BIGNUM and
81 mpz_t when openssl and GMP use the same limb size. Otherwise the
82 existing "conversion via a text string export" trick is still used.
83 [Paul Sheer <paulsheer@gmail.com>]
85 *) Zlib compression BIO. This is a filter BIO which compressed and
86 uncompresses any data passed through it.
89 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
90 RFC3394 compatible AES key wrapping.
93 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
94 sets string data without copying. X509_ALGOR_set0() and
95 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
96 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
97 from an X509_ATTRIBUTE structure optionally checking it occurs only
98 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
102 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
103 to get the expected BN_FLG_CONSTTIME behavior.
104 [Bodo Moeller (Google)]
108 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
109 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
110 - added some more tests to do_tests.pl
111 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
112 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
113 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
114 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
115 - various changes to netware.pl to enable gcc-cross builds on Win32
117 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
118 - various changes to fix missing prototype warnings
119 - fixed x86nasm.pl to create correct asm files for NASM COFF output
120 - added AES, WHIRLPOOL and CPUID assembler code to build files
121 - added missing AES assembler make rules to mk1mf.pl
122 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
123 [Guenter Knauf <eflash@gmx.net>]
125 *) Implement certificate status request TLS extension defined in RFC3546.
126 A client can set the appropriate parameters and receive the encoded
127 OCSP response via a callback. A server can query the supplied parameters
128 and set the encoded OCSP response in the callback. Add simplified examples
129 to s_client and s_server.
132 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
135 + Binary incompatibility of ssl_ctx_st structure
136 + DTLS interoperation with non-compliant servers
137 + Don't call get_session_cb() without proposed session
138 + Fix ia64 assembler code
139 [Andy Polyakov, Steve Henson]
141 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
143 *) DTLS Handshake overhaul. There were longstanding issues with
144 OpenSSL DTLS implementation, which were making it impossible for
145 RFC 4347 compliant client to communicate with OpenSSL server.
146 Unfortunately just fixing these incompatibilities would "cut off"
147 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
148 server keeps tolerating non RFC compliant syntax. The opposite is
149 not true, 0.9.8f client can not communicate with earlier server.
150 This update even addresses CVE-2007-4995.
153 *) Changes to avoid need for function casts in OpenSSL: some compilers
154 (gcc 4.2 and later) reject their use.
155 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
158 *) Add RFC4507 support to OpenSSL. This includes the corrections in
159 RFC4507bis. The encrypted ticket format is an encrypted encoded
160 SSL_SESSION structure, that way new session features are automatically
163 If a client application caches session in an SSL_SESSION structure
164 support is transparent because tickets are now stored in the encoded
167 The SSL_CTX structure automatically generates keys for ticket
168 protection in servers so again support should be possible
169 with no application modification.
171 If a client or server wishes to disable RFC4507 support then the option
172 SSL_OP_NO_TICKET can be set.
174 Add a TLS extension debugging callback to allow the contents of any client
175 or server extensions to be examined.
177 This work was sponsored by Google.
180 *) Add initial support for TLS extensions, specifically for the server_name
181 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
182 have new members for a host name. The SSL data structure has an
183 additional member SSL_CTX *initial_ctx so that new sessions can be
184 stored in that context to allow for session resumption, even after the
185 SSL has been switched to a new SSL_CTX in reaction to a client's
186 server_name extension.
188 New functions (subject to change):
191 SSL_get_servername_type()
194 New CTRL codes and macros (subject to change):
196 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
197 - SSL_CTX_set_tlsext_servername_callback()
198 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
199 - SSL_CTX_set_tlsext_servername_arg()
200 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
202 openssl s_client has a new '-servername ...' option.
204 openssl s_server has new options '-servername_host ...', '-cert2 ...',
205 '-key2 ...', '-servername_fatal' (subject to change). This allows
206 testing the HostName extension for a specific single host name ('-cert'
207 and '-key' remain fallbacks for handshakes without HostName
208 negotiation). If the unrecogninzed_name alert has to be sent, this by
209 default is a warning; it becomes fatal with the '-servername_fatal'
212 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
214 *) Add AES and SSE2 assembly language support to VC++ build.
217 *) Mitigate attack on final subtraction in Montgomery reduction.
220 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
221 (which previously caused an internal error).
224 *) Squeeze another 10% out of IGE mode when in != out.
227 *) AES IGE mode speedup.
228 [Dean Gaudet (Google)]
230 *) Add the Korean symmetric 128-bit cipher SEED (see
231 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
232 add SEED ciphersuites from RFC 4162:
234 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
235 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
236 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
237 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
239 To minimize changes between patchlevels in the OpenSSL 0.9.8
240 series, SEED remains excluded from compilation unless OpenSSL
241 is configured with 'enable-seed'.
244 *) Mitigate branch prediction attacks, which can be practical if a
245 single processor is shared, allowing a spy process to extract
246 information. For detailed background information, see
247 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
248 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
249 and Necessary Software Countermeasures"). The core of the change
250 are new versions BN_div_no_branch() and
251 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
252 respectively, which are slower, but avoid the security-relevant
253 conditional branches. These are automatically called by BN_div()
254 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
255 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
256 remove a conditional branch.
258 BN_FLG_CONSTTIME is the new name for the previous
259 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
260 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
261 in the exponent causes BN_mod_exp_mont() to use the alternative
262 implementation in BN_mod_exp_mont_consttime().) The old name
263 remains as a deprecated alias.
265 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
266 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
267 constant-time implementations for more than just exponentiation.
268 Here too the old name is kept as a deprecated alias.
270 BN_BLINDING_new() will now use BN_dup() for the modulus so that
271 the BN_BLINDING structure gets an independent copy of the
272 modulus. This means that the previous "BIGNUM *m" argument to
273 BN_BLINDING_new() and to BN_BLINDING_create_param() now
274 essentially becomes "const BIGNUM *m", although we can't actually
275 change this in the header file before 0.9.9. It allows
276 RSA_setup_blinding() to use BN_with_flags() on the modulus to
277 enable BN_FLG_CONSTTIME.
279 [Matthew D Wood (Intel Corp)]
281 *) In the SSL/TLS server implementation, be strict about session ID
282 context matching (which matters if an application uses a single
283 external cache for different purposes). Previously,
284 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
285 set. This did ensure strict client verification, but meant that,
286 with applications using a single external cache for quite
287 different requirements, clients could circumvent ciphersuite
288 restrictions for a given session ID context by starting a session
289 in a different context.
292 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
293 a ciphersuite string such as "DEFAULT:RSA" cannot enable
294 authentication-only ciphersuites.
297 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
298 not complete and could lead to a possible single byte overflow
299 (CVE-2007-5135) [Ben Laurie]
301 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
303 *) Since AES128 and AES256 (and similarly Camellia128 and
304 Camellia256) share a single mask bit in the logic of
305 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
306 kludge to work properly if AES128 is available and AES256 isn't
307 (or if Camellia128 is available and Camellia256 isn't).
310 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
311 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
312 When a point or a seed is encoded in a BIT STRING, we need to
313 prevent the removal of trailing zero bits to get the proper DER
314 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
315 of a NamedBitList, for which trailing 0 bits need to be removed.)
318 *) Have SSL/TLS server implementation tolerate "mismatched" record
319 protocol version while receiving ClientHello even if the
320 ClientHello is fragmented. (The server can't insist on the
321 particular protocol version it has chosen before the ServerHello
322 message has informed the client about his choice.)
325 *) Add RFC 3779 support.
326 [Rob Austein for ARIN, Ben Laurie]
328 *) Load error codes if they are not already present instead of using a
329 static variable. This allows them to be cleanly unloaded and reloaded.
330 Improve header file function name parsing.
333 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
334 or CAPABILITY handshake as required by RFCs.
337 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
339 *) Introduce limits to prevent malicious keys being able to
340 cause a denial of service. (CVE-2006-2940)
341 [Steve Henson, Bodo Moeller]
343 *) Fix ASN.1 parsing of certain invalid structures that can result
344 in a denial of service. (CVE-2006-2937) [Steve Henson]
346 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
347 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
349 *) Fix SSL client code which could crash if connecting to a
350 malicious SSLv2 server. (CVE-2006-4343)
351 [Tavis Ormandy and Will Drewry, Google Security Team]
353 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
354 match only those. Before that, "AES256-SHA" would be interpreted
355 as a pattern and match "AES128-SHA" too (since AES128-SHA got
356 the same strength classification in 0.9.7h) as we currently only
357 have a single AES bit in the ciphersuite description bitmap.
358 That change, however, also applied to ciphersuite strings such as
359 "RC4-MD5" that intentionally matched multiple ciphersuites --
360 namely, SSL 2.0 ciphersuites in addition to the more common ones
361 from SSL 3.0/TLS 1.0.
363 So we change the selection algorithm again: Naming an explicit
364 ciphersuite selects this one ciphersuite, and any other similar
365 ciphersuite (same bitmap) from *other* protocol versions.
366 Thus, "RC4-MD5" again will properly select both the SSL 2.0
367 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
369 Since SSL 2.0 does not have any ciphersuites for which the
370 128/256 bit distinction would be relevant, this works for now.
371 The proper fix will be to use different bits for AES128 and
372 AES256, which would have avoided the problems from the beginning;
373 however, bits are scarce, so we can only do this in a new release
374 (not just a patchlevel) when we can change the SSL_CIPHER
375 definition to split the single 'unsigned long mask' bitmap into
376 multiple values to extend the available space.
380 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
382 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
383 (CVE-2006-4339) [Ben Laurie and Google Security Team]
385 *) Add AES IGE and biIGE modes.
388 *) Change the Unix randomness entropy gathering to use poll() when
389 possible instead of select(), since the latter has some
390 undesirable limitations.
391 [Darryl Miles via Richard Levitte and Bodo Moeller]
393 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
394 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
395 cannot be implicitly activated as part of, e.g., the "AES" alias.
396 However, please upgrade to OpenSSL 0.9.9[-dev] for
397 non-experimental use of the ECC ciphersuites to get TLS extension
398 support, which is required for curve and point format negotiation
399 to avoid potential handshake problems.
402 *) Disable rogue ciphersuites:
404 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
405 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
406 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
408 The latter two were purportedly from
409 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
412 Also deactivate the remaining ciphersuites from
413 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
414 unofficial, and the ID has long expired.
417 *) Fix RSA blinding Heisenbug (problems sometimes occured on
418 dual-core machines) and other potential thread-safety issues.
421 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
422 versions), which is now available for royalty-free use
423 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
424 Also, add Camellia TLS ciphersuites from RFC 4132.
426 To minimize changes between patchlevels in the OpenSSL 0.9.8
427 series, Camellia remains excluded from compilation unless OpenSSL
428 is configured with 'enable-camellia'.
431 *) Disable the padding bug check when compression is in use. The padding
432 bug check assumes the first packet is of even length, this is not
433 necessarily true if compresssion is enabled and can result in false
434 positives causing handshake failure. The actual bug test is ancient
435 code so it is hoped that implementations will either have fixed it by
436 now or any which still have the bug do not support compression.
439 Changes between 0.9.8a and 0.9.8b [04 May 2006]
441 *) When applying a cipher rule check to see if string match is an explicit
442 cipher suite and only match that one cipher suite if it is.
445 *) Link in manifests for VC++ if needed.
446 [Austin Ziegler <halostatue@gmail.com>]
448 *) Update support for ECC-based TLS ciphersuites according to
449 draft-ietf-tls-ecc-12.txt with proposed changes (but without
450 TLS extensions, which are supported starting with the 0.9.9
451 branch, not in the OpenSSL 0.9.8 branch).
454 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
455 opaque EVP_CIPHER_CTX handling.
458 *) Fixes and enhancements to zlib compression code. We now only use
459 "zlib1.dll" and use the default __cdecl calling convention on Win32
460 to conform with the standards mentioned here:
461 http://www.zlib.net/DLL_FAQ.txt
462 Static zlib linking now works on Windows and the new --with-zlib-include
463 --with-zlib-lib options to Configure can be used to supply the location
464 of the headers and library. Gracefully handle case where zlib library
468 *) Several fixes and enhancements to the OID generation code. The old code
469 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
470 handle numbers larger than ULONG_MAX, truncated printing and had a
471 non standard OBJ_obj2txt() behaviour.
474 *) Add support for building of engines under engine/ as shared libraries
475 under VC++ build system.
478 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
479 Hopefully, we will not see any false combination of paths any more.
482 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
484 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
485 (part of SSL_OP_ALL). This option used to disable the
486 countermeasure against man-in-the-middle protocol-version
487 rollback in the SSL 2.0 server implementation, which is a bad
488 idea. (CVE-2005-2969)
490 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
491 for Information Security, National Institute of Advanced Industrial
492 Science and Technology [AIST], Japan)]
494 *) Add two function to clear and return the verify parameter flags.
497 *) Keep cipherlists sorted in the source instead of sorting them at
498 runtime, thus removing the need for a lock.
501 *) Avoid some small subgroup attacks in Diffie-Hellman.
502 [Nick Mathewson and Ben Laurie]
504 *) Add functions for well-known primes.
507 *) Extended Windows CE support.
508 [Satoshi Nakamura and Andy Polyakov]
510 *) Initialize SSL_METHOD structures at compile time instead of during
511 runtime, thus removing the need for a lock.
514 *) Make PKCS7_decrypt() work even if no certificate is supplied by
515 attempting to decrypt each encrypted key in turn. Add support to
519 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
521 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
524 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
527 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
528 key into the same file any more.
531 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
534 *) Add -utf8 command line and config file option to 'ca'.
535 [Stefan <stf@udoma.org]
537 *) Removed the macro des_crypt(), as it seems to conflict with some
538 libraries. Use DES_crypt().
541 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
542 involves renaming the source and generated shared-libs for
543 both. The engines will accept the corrected or legacy ids
544 ('ncipher' and '4758_cca' respectively) when binding. NB,
545 this only applies when building 'shared'.
546 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
548 *) Add attribute functions to EVP_PKEY structure. Modify
549 PKCS12_create() to recognize a CSP name attribute and
550 use it. Make -CSP option work again in pkcs12 utility.
553 *) Add new functionality to the bn blinding code:
554 - automatic re-creation of the BN_BLINDING parameters after
555 a fixed number of uses (currently 32)
556 - add new function for parameter creation
557 - introduce flags to control the update behaviour of the
558 BN_BLINDING parameters
559 - hide BN_BLINDING structure
560 Add a second BN_BLINDING slot to the RSA structure to improve
561 performance when a single RSA object is shared among several
565 *) Add support for DTLS.
566 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
568 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
569 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
572 *) Remove buggy and incompletet DH cert support from
573 ssl/ssl_rsa.c and ssl/s3_both.c
576 *) Use SHA-1 instead of MD5 as the default digest algorithm for
577 the apps/openssl applications.
580 *) Compile clean with "-Wall -Wmissing-prototypes
581 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
582 DEBUG_SAFESTACK must also be set.
585 *) Change ./Configure so that certain algorithms can be disabled by default.
586 The new counterpiece to "no-xxx" is "enable-xxx".
588 The patented RC5 and MDC2 algorithms will now be disabled unless
589 "enable-rc5" and "enable-mdc2", respectively, are specified.
591 (IDEA remains enabled despite being patented. This is because IDEA
592 is frequently required for interoperability, and there is no license
593 fee for non-commercial use. As before, "no-idea" can be used to
594 avoid this algorithm.)
598 *) Add processing of proxy certificates (see RFC 3820). This work was
599 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
600 EGEE (Enabling Grids for E-science in Europe).
603 *) RC4 performance overhaul on modern architectures/implementations, such
604 as Intel P4, IA-64 and AMD64.
607 *) New utility extract-section.pl. This can be used specify an alternative
608 section number in a pod file instead of having to treat each file as
609 a separate case in Makefile. This can be done by adding two lines to the
612 =for comment openssl_section:XXX
614 The blank line is mandatory.
618 *) New arguments -certform, -keyform and -pass for s_client and s_server
619 to allow alternative format key and certificate files and passphrase
623 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
624 update associated structures and add various utility functions.
626 Add new policy related verify parameters, include policy checking in
627 standard verify code. Enhance 'smime' application with extra parameters
628 to support policy checking and print out.
631 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
632 Nehemiah processors. These extensions support AES encryption in hardware
633 as well as RNG (though RNG support is currently disabled).
634 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
636 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
639 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
640 [Andy Polyakov and a number of other people]
642 *) Improved PowerPC platform support. Most notably BIGNUM assembler
643 implementation contributed by IBM.
644 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
646 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
647 exponent rather than 'unsigned long'. There is a corresponding change to
648 the new 'rsa_keygen' element of the RSA_METHOD structure.
649 [Jelte Jansen, Geoff Thorpe]
651 *) Functionality for creating the initial serial number file is now
652 moved from CA.pl to the 'ca' utility with a new option -create_serial.
654 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
655 number file to 1, which is bound to cause problems. To avoid
656 the problems while respecting compatibility between different 0.9.7
657 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
658 CA.pl for serial number initialization. With the new release 0.9.8,
659 we can fix the problem directly in the 'ca' utility.)
662 *) Reduced header interdepencies by declaring more opaque objects in
663 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
664 give fewer recursive includes, which could break lazy source code - so
665 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
666 developers should define this symbol when building and using openssl to
667 ensure they track the recommended behaviour, interfaces, [etc], but
668 backwards-compatible behaviour prevails when this isn't defined.
671 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
674 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
675 This will generate a random key of the appropriate length based on the
676 cipher context. The EVP_CIPHER can provide its own random key generation
677 routine to support keys of a specific form. This is used in the des and
678 3des routines to generate a key of the correct parity. Update S/MIME
679 code to use new functions and hence generate correct parity DES keys.
680 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
681 valid (weak or incorrect parity).
684 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
685 as looking them up. This is useful when the verified structure may contain
686 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
687 present unless the new PKCS7_NO_CRL flag is asserted.
690 *) Extend ASN1 oid configuration module. It now additionally accepts the
693 shortName = some long name, 1.2.3.4
696 *) Reimplemented the BN_CTX implementation. There is now no more static
697 limitation on the number of variables it can handle nor the depth of the
698 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
699 information can now expand as required, and rather than having a single
700 static array of bignums, BN_CTX now uses a linked-list of such arrays
701 allowing it to expand on demand whilst maintaining the usefulness of
705 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
706 to allow all RSA operations to function using a single BN_CTX.
709 *) Preliminary support for certificate policy evaluation and checking. This
710 is initially intended to pass the tests outlined in "Conformance Testing
711 of Relying Party Client Certificate Path Processing Logic" v1.07.
714 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
715 remained unused and not that useful. A variety of other little bignum
716 tweaks and fixes have also been made continuing on from the audit (see
720 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
721 associated ASN1, EVP and SSL functions and old ASN1 macros.
724 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
725 and this should never fail. So the return value from the use of
726 BN_set_word() (which can fail due to needless expansion) is now deprecated;
727 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
730 *) BN_CTX_get() should return zero-valued bignums, providing the same
731 initialised value as BN_new().
732 [Geoff Thorpe, suggested by Ulf Möller]
734 *) Support for inhibitAnyPolicy certificate extension.
737 *) An audit of the BIGNUM code is underway, for which debugging code is
738 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
739 is considered valid when processing BIGNUMs, and causes execution to
740 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
741 further steps are taken to deliberately pollute unused data in BIGNUM
742 structures to try and expose faulty code further on. For now, openssl will
743 (in its default mode of operation) continue to tolerate the inconsistent
744 forms that it has tolerated in the past, but authors and packagers should
745 consider trying openssl and their own applications when compiled with
746 these debugging symbols defined. It will help highlight potential bugs in
747 their own code, and will improve the test coverage for OpenSSL itself. At
748 some point, these tighter rules will become openssl's default to improve
749 maintainability, though the assert()s and other overheads will remain only
750 in debugging configurations. See bn.h for more details.
751 [Geoff Thorpe, Nils Larsch, Ulf Möller]
753 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
754 that can only be obtained through BN_CTX_new() (which implicitly
755 initialises it). The presence of this function only made it possible
756 to overwrite an existing structure (and cause memory leaks).
759 *) Because of the callback-based approach for implementing LHASH as a
760 template type, lh_insert() adds opaque objects to hash-tables and
761 lh_doall() or lh_doall_arg() are typically used with a destructor callback
762 to clean up those corresponding objects before destroying the hash table
763 (and losing the object pointers). So some over-zealous constifications in
764 LHASH have been relaxed so that lh_insert() does not take (nor store) the
765 objects as "const" and the lh_doall[_arg] callback wrappers are not
766 prototyped to have "const" restrictions on the object pointers they are
767 given (and so aren't required to cast them away any more).
770 *) The tmdiff.h API was so ugly and minimal that our own timing utility
771 (speed) prefers to use its own implementation. The two implementations
772 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
773 its object type properly exposed (MS_TM) instead of casting to/from "char
774 *". This may still change yet if someone realises MS_TM and "ms_time_***"
775 aren't necessarily the greatest nomenclatures - but this is what was used
776 internally to the implementation so I've used that for now.
779 *) Ensure that deprecated functions do not get compiled when
780 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
781 the self-tests were still using deprecated key-generation functions so
782 these have been updated also.
785 *) Reorganise PKCS#7 code to separate the digest location functionality
786 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
787 New function PKCS7_set_digest() to set the digest type for PKCS#7
788 digestedData type. Add additional code to correctly generate the
789 digestedData type and add support for this type in PKCS7 initialization
793 *) New function PKCS7_set0_type_other() this initializes a PKCS7
794 structure of type "other".
797 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
798 sure the loop does correctly stop and breaking ("division by zero")
799 modulus operations are not performed. The (pre-generated) prime
800 table crypto/bn/bn_prime.h was already correct, but it could not be
801 re-generated on some platforms because of the "division by zero"
802 situation in the script.
803 [Ralf S. Engelschall]
805 *) Update support for ECC-based TLS ciphersuites according to
806 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
807 SHA-1 now is only used for "small" curves (where the
808 representation of a field element takes up to 24 bytes); for
809 larger curves, the field element resulting from ECDH is directly
810 used as premaster secret.
811 [Douglas Stebila (Sun Microsystems Laboratories)]
813 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
814 curve secp160r1 to the tests.
815 [Douglas Stebila (Sun Microsystems Laboratories)]
817 *) Add the possibility to load symbols globally with DSO.
818 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
820 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
821 control of the error stack.
824 *) Add support for STORE in ENGINE.
827 *) Add the STORE type. The intention is to provide a common interface
828 to certificate and key stores, be they simple file-based stores, or
829 HSM-type store, or LDAP stores, or...
830 NOTE: The code is currently UNTESTED and isn't really used anywhere.
833 *) Add a generic structure called OPENSSL_ITEM. This can be used to
834 pass a list of arguments to any function as well as provide a way
835 for a function to pass data back to the caller.
838 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
839 works like BUF_strdup() but can be used to duplicate a portion of
840 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
844 *) Add the function sk_find_ex() which works like sk_find(), but will
845 return an index to an element even if an exact match couldn't be
846 found. The index is guaranteed to point at the element where the
847 searched-for key would be inserted to preserve sorting order.
850 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
851 takes an extra flags argument for optional functionality. Currently,
852 the following flags are defined:
854 OBJ_BSEARCH_VALUE_ON_NOMATCH
855 This one gets OBJ_bsearch_ex() to return a pointer to the first
856 element where the comparing function returns a negative or zero
859 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
860 This one gets OBJ_bsearch_ex() to return a pointer to the first
861 element where the comparing function returns zero. This is useful
862 if there are more than one element where the comparing function
866 *) Make it possible to create self-signed certificates with 'openssl ca'
867 in such a way that the self-signed certificate becomes part of the
868 CA database and uses the same mechanisms for serial number generation
869 as all other certificate signing. The new flag '-selfsign' enables
870 this functionality. Adapt CA.sh and CA.pl.in.
873 *) Add functionality to check the public key of a certificate request
874 against a given private. This is useful to check that a certificate
875 request can be signed by that key (self-signing).
878 *) Make it possible to have multiple active certificates with the same
879 subject in the CA index file. This is done only if the keyword
880 'unique_subject' is set to 'no' in the main CA section (default
881 if 'CA_default') of the configuration file. The value is saved
882 with the database itself in a separate index attribute file,
883 named like the index file with '.attr' appended to the name.
886 *) Generate muti valued AVAs using '+' notation in config files for
890 *) Support for nameConstraints certificate extension.
893 *) Support for policyConstraints certificate extension.
896 *) Support for policyMappings certificate extension.
899 *) Make sure the default DSA_METHOD implementation only uses its
900 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
901 and change its own handlers to be NULL so as to remove unnecessary
902 indirection. This lets alternative implementations fallback to the
903 default implementation more easily.
906 *) Support for directoryName in GeneralName related extensions
910 *) Make it possible to link applications using Makefile.shared.
911 Make that possible even when linking against static libraries!
914 *) Support for single pass processing for S/MIME signing. This now
915 means that S/MIME signing can be done from a pipe, in addition
916 cleartext signing (multipart/signed type) is effectively streaming
917 and the signed data does not need to be all held in memory.
919 This is done with a new flag PKCS7_STREAM. When this flag is set
920 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
921 is done after the data is output (and digests calculated) in
925 *) Add full support for -rpath/-R, both in shared libraries and
926 applications, at least on the platforms where it's known how
930 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
931 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
932 will now compute a table of multiples of the generator that
933 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
934 faster (notably in the case of a single point multiplication,
936 [Nils Larsch, Bodo Moeller]
938 *) IPv6 support for certificate extensions. The various extensions
939 which use the IP:a.b.c.d can now take IPv6 addresses using the
940 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
944 *) Added an ENGINE that implements RSA by performing private key
945 exponentiations with the GMP library. The conversions to and from
946 GMP's mpz_t format aren't optimised nor are any montgomery forms
947 cached, and on x86 it appears OpenSSL's own performance has caught up.
948 However there are likely to be other architectures where GMP could
949 provide a boost. This ENGINE is not built in by default, but it can be
950 specified at Configure time and should be accompanied by the necessary
951 linker additions, eg;
952 ./config -DOPENSSL_USE_GMP -lgmp
955 *) "openssl engine" will not display ENGINE/DSO load failure errors when
956 testing availability of engines with "-t" - the old behaviour is
957 produced by increasing the feature's verbosity with "-tt".
960 *) ECDSA routines: under certain error conditions uninitialized BN objects
961 could be freed. Solution: make sure initialization is performed early
962 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
966 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
967 and DH_METHOD (eg. by ENGINE implementations) to override the normal
968 software implementations. For DSA and DH, parameter generation can
969 also be overriden by providing the appropriate method callbacks.
972 *) Change the "progress" mechanism used in key-generation and
973 primality testing to functions that take a new BN_GENCB pointer in
974 place of callback/argument pairs. The new API functions have "_ex"
975 postfixes and the older functions are reimplemented as wrappers for
976 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
977 declarations of the old functions to help (graceful) attempts to
978 migrate to the new functions. Also, the new key-generation API
979 functions operate on a caller-supplied key-structure and return
980 success/failure rather than returning a key or NULL - this is to
981 help make "keygen" another member function of RSA_METHOD etc.
983 Example for using the new callback interface:
985 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
989 BN_GENCB_set(&my_cb, my_callback, my_arg);
991 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
992 /* For the meaning of a, b in calls to my_callback(), see the
993 * documentation of the function that calls the callback.
994 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
995 * my_callback should return 1 if it wants BN_is_prime_ex()
996 * to continue, or 0 to stop.
1001 *) Change the ZLIB compression method to be stateful, and make it
1002 available to TLS with the number defined in
1003 draft-ietf-tls-compression-04.txt.
1006 *) Add the ASN.1 structures and functions for CertificatePair, which
1007 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1009 CertificatePair ::= SEQUENCE {
1010 forward [0] Certificate OPTIONAL,
1011 reverse [1] Certificate OPTIONAL,
1012 -- at least one of the pair shall be present -- }
1014 Also implement the PEM functions to read and write certificate
1015 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1017 This needed to be defined, mostly for the sake of the LDAP
1018 attribute crossCertificatePair, but may prove useful elsewhere as
1022 *) Make it possible to inhibit symlinking of shared libraries in
1023 Makefile.shared, for Cygwin's sake.
1026 *) Extend the BIGNUM API by creating a function
1027 void BN_set_negative(BIGNUM *a, int neg);
1028 and a macro that behave like
1029 int BN_is_negative(const BIGNUM *a);
1031 to avoid the need to access 'a->neg' directly in applications.
1034 *) Implement fast modular reduction for pseudo-Mersenne primes
1035 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1036 EC_GROUP_new_curve_GFp() will now automatically use this
1038 [Nils Larsch <nla@trustcenter.de>]
1040 *) Add new lock type (CRYPTO_LOCK_BN).
1043 *) Change the ENGINE framework to automatically load engines
1044 dynamically from specific directories unless they could be
1045 found to already be built in or loaded. Move all the
1046 current engines except for the cryptodev one to a new
1048 The engines in engines/ are built as shared libraries if
1049 the "shared" options was given to ./Configure or ./config.
1050 Otherwise, they are inserted in libcrypto.a.
1051 /usr/local/ssl/engines is the default directory for dynamic
1052 engines, but that can be overriden at configure time through
1053 the usual use of --prefix and/or --openssldir, and at run
1054 time with the environment variable OPENSSL_ENGINES.
1055 [Geoff Thorpe and Richard Levitte]
1057 *) Add Makefile.shared, a helper makefile to build shared
1058 libraries. Addapt Makefile.org.
1061 *) Add version info to Win32 DLLs.
1062 [Peter 'Luna' Runestig" <peter@runestig.com>]
1064 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1065 can be added using this API to created arbitrary PKCS#12
1066 files while avoiding the low level API.
1068 New options to PKCS12_create(), key or cert can be NULL and
1069 will then be omitted from the output file. The encryption
1070 algorithm NIDs can be set to -1 for no encryption, the mac
1071 iteration count can be set to 0 to omit the mac.
1073 Enhance pkcs12 utility by making the -nokeys and -nocerts
1074 options work when creating a PKCS#12 file. New option -nomac
1075 to omit the mac, NONE can be set for an encryption algorithm.
1076 New code is modified to use the enhanced PKCS12_create()
1077 instead of the low level API.
1080 *) Extend ASN1 encoder to support indefinite length constructed
1081 encoding. This can output sequences tags and octet strings in
1082 this form. Modify pk7_asn1.c to support indefinite length
1083 encoding. This is experimental and needs additional code to
1084 be useful, such as an ASN1 bio and some enhanced streaming
1087 Extend template encode functionality so that tagging is passed
1088 down to the template encoder.
1091 *) Let 'openssl req' fail if an argument to '-newkey' is not
1092 recognized instead of using RSA as a default.
1095 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1096 As these are not official, they are not included in "ALL";
1097 the "ECCdraft" ciphersuite group alias can be used to select them.
1098 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1100 *) Add ECDH engine support.
1101 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1103 *) Add ECDH in new directory crypto/ecdh/.
1104 [Douglas Stebila (Sun Microsystems Laboratories)]
1106 *) Let BN_rand_range() abort with an error after 100 iterations
1107 without success (which indicates a broken PRNG).
1110 *) Change BN_mod_sqrt() so that it verifies that the input value
1111 is really the square of the return value. (Previously,
1112 BN_mod_sqrt would show GIGO behaviour.)
1115 *) Add named elliptic curves over binary fields from X9.62, SECG,
1116 and WAP/WTLS; add OIDs that were still missing.
1118 [Sheueling Chang Shantz and Douglas Stebila
1119 (Sun Microsystems Laboratories)]
1121 *) Extend the EC library for elliptic curves over binary fields
1122 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1125 EC_GF2m_simple_method
1129 EC_GROUP_new_curve_GF2m
1130 EC_GROUP_set_curve_GF2m
1131 EC_GROUP_get_curve_GF2m
1132 EC_POINT_set_affine_coordinates_GF2m
1133 EC_POINT_get_affine_coordinates_GF2m
1134 EC_POINT_set_compressed_coordinates_GF2m
1136 Point compression for binary fields is disabled by default for
1137 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1140 As binary polynomials are represented as BIGNUMs, various members
1141 of the EC_GROUP and EC_POINT data structures can be shared
1142 between the implementations for prime fields and binary fields;
1143 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1144 are essentially identical to their ..._GFp counterparts.
1145 (For simplicity, the '..._GFp' prefix has been dropped from
1146 various internal method names.)
1148 An internal 'field_div' method (similar to 'field_mul' and
1149 'field_sqr') has been added; this is used only for binary fields.
1151 [Sheueling Chang Shantz and Douglas Stebila
1152 (Sun Microsystems Laboratories)]
1154 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1155 through methods ('mul', 'precompute_mult').
1157 The generic implementations (now internally called 'ec_wNAF_mul'
1158 and 'ec_wNAF_precomputed_mult') remain the default if these
1159 methods are undefined.
1161 [Sheueling Chang Shantz and Douglas Stebila
1162 (Sun Microsystems Laboratories)]
1164 *) New function EC_GROUP_get_degree, which is defined through
1165 EC_METHOD. For curves over prime fields, this returns the bit
1166 length of the modulus.
1168 [Sheueling Chang Shantz and Douglas Stebila
1169 (Sun Microsystems Laboratories)]
1171 *) New functions EC_GROUP_dup, EC_POINT_dup.
1172 (These simply call ..._new and ..._copy).
1174 [Sheueling Chang Shantz and Douglas Stebila
1175 (Sun Microsystems Laboratories)]
1177 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1178 Polynomials are represented as BIGNUMs (where the sign bit is not
1179 used) in the following functions [macros]:
1182 BN_GF2m_sub [= BN_GF2m_add]
1183 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1184 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1185 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1187 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1188 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1189 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1190 BN_GF2m_cmp [= BN_ucmp]
1192 (Note that only the 'mod' functions are actually for fields GF(2^m).
1193 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1195 For some functions, an the irreducible polynomial defining a
1196 field can be given as an 'unsigned int[]' with strictly
1197 decreasing elements giving the indices of those bits that are set;
1198 i.e., p[] represents the polynomial
1199 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1201 p[0] > p[1] > ... > p[k] = 0.
1202 This applies to the following functions:
1207 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1208 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1210 BN_GF2m_mod_sqrt_arr
1211 BN_GF2m_mod_solve_quad_arr
1215 Conversion can be performed by the following functions:
1220 bntest.c has additional tests for binary polynomial arithmetic.
1222 Two implementations for BN_GF2m_mod_div() are available.
1223 The default algorithm simply uses BN_GF2m_mod_inv() and
1224 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1225 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1226 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1228 [Sheueling Chang Shantz and Douglas Stebila
1229 (Sun Microsystems Laboratories)]
1231 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1232 functionality is disabled at compile-time.
1233 [Douglas Stebila <douglas.stebila@sun.com>]
1235 *) Change default behaviour of 'openssl asn1parse' so that more
1236 information is visible when viewing, e.g., a certificate:
1238 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1239 mode the content of non-printable OCTET STRINGs is output in a
1240 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1241 avoid the appearance of a printable string.
1242 [Nils Larsch <nla@trustcenter.de>]
1244 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1246 EC_GROUP_set_asn1_flag()
1247 EC_GROUP_get_asn1_flag()
1248 EC_GROUP_set_point_conversion_form()
1249 EC_GROUP_get_point_conversion_form()
1250 These control ASN1 encoding details:
1251 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1252 has been set to OPENSSL_EC_NAMED_CURVE.
1253 - Points are encoded in uncompressed form by default; options for
1254 asn1_for are as for point2oct, namely
1255 POINT_CONVERSION_COMPRESSED
1256 POINT_CONVERSION_UNCOMPRESSED
1257 POINT_CONVERSION_HYBRID
1259 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1262 EC_GROUP_get0_seed()
1263 EC_GROUP_get_seed_len()
1264 This is used only for ASN1 purposes (so far).
1265 [Nils Larsch <nla@trustcenter.de>]
1267 *) Add 'field_type' member to EC_METHOD, which holds the NID
1268 of the appropriate field type OID. The new function
1269 EC_METHOD_get_field_type() returns this value.
1270 [Nils Larsch <nla@trustcenter.de>]
1275 EC_POINT_point2hex()
1276 EC_POINT_hex2point()
1277 providing useful interfaces to EC_POINT_point2oct() and
1278 EC_POINT_oct2point().
1279 [Nils Larsch <nla@trustcenter.de>]
1281 *) Change internals of the EC library so that the functions
1282 EC_GROUP_set_generator()
1283 EC_GROUP_get_generator()
1284 EC_GROUP_get_order()
1285 EC_GROUP_get_cofactor()
1286 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1287 to methods, which would lead to unnecessary code duplication when
1288 adding different types of curves.
1289 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1291 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1292 arithmetic, and such that modified wNAFs are generated
1293 (which avoid length expansion in many cases).
1296 *) Add a function EC_GROUP_check_discriminant() (defined via
1297 EC_METHOD) that verifies that the curve discriminant is non-zero.
1299 Add a function EC_GROUP_check() that makes some sanity tests
1300 on a EC_GROUP, its generator and order. This includes
1301 EC_GROUP_check_discriminant().
1302 [Nils Larsch <nla@trustcenter.de>]
1304 *) Add ECDSA in new directory crypto/ecdsa/.
1306 Add applications 'openssl ecparam' and 'openssl ecdsa'
1307 (these are based on 'openssl dsaparam' and 'openssl dsa').
1309 ECDSA support is also included in various other files across the
1310 library. Most notably,
1311 - 'openssl req' now has a '-newkey ecdsa:file' option;
1312 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1313 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1314 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1315 them suitable for ECDSA where domain parameters must be
1316 extracted before the specific public key;
1317 - ECDSA engine support has been added.
1318 [Nils Larsch <nla@trustcenter.de>]
1320 *) Include some named elliptic curves, and add OIDs from X9.62,
1321 SECG, and WAP/WTLS. Each curve can be obtained from the new
1323 EC_GROUP_new_by_curve_name(),
1324 and the list of available named curves can be obtained with
1325 EC_get_builtin_curves().
1326 Also add a 'curve_name' member to EC_GROUP objects, which can be
1328 EC_GROUP_set_curve_name()
1329 EC_GROUP_get_curve_name()
1330 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1332 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1333 was actually never needed) and in BN_mul(). The removal in BN_mul()
1334 required a small change in bn_mul_part_recursive() and the addition
1335 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1336 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1337 bn_sub_words() and bn_add_words() except they take arrays with
1341 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1343 *) In the SSL/TLS server implementation, be strict about session ID
1344 context matching (which matters if an application uses a single
1345 external cache for different purposes). Previously,
1346 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1347 set. This did ensure strict client verification, but meant that,
1348 with applications using a single external cache for quite
1349 different requirements, clients could circumvent ciphersuite
1350 restrictions for a given session ID context by starting a session
1351 in a different context.
1354 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1356 *) Cleanse PEM buffers before freeing them since they may contain
1358 [Benjamin Bennett <ben@psc.edu>]
1360 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1361 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1362 authentication-only ciphersuites.
1365 *) Since AES128 and AES256 share a single mask bit in the logic of
1366 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1367 kludge to work properly if AES128 is available and AES256 isn't.
1370 *) Expand security boundary to match 1.1.1 module.
1373 *) Remove redundant features: hash file source, editing of test vectors
1374 modify fipsld to use external fips_premain.c signature.
1377 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1378 run algorithm test programs.
1381 *) Make algorithm test programs more tolerant of whitespace.
1384 *) Have SSL/TLS server implementation tolerate "mismatched" record
1385 protocol version while receiving ClientHello even if the
1386 ClientHello is fragmented. (The server can't insist on the
1387 particular protocol version it has chosen before the ServerHello
1388 message has informed the client about his choice.)
1391 *) Load error codes if they are not already present instead of using a
1392 static variable. This allows them to be cleanly unloaded and reloaded.
1395 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1397 *) Introduce limits to prevent malicious keys being able to
1398 cause a denial of service. (CVE-2006-2940)
1399 [Steve Henson, Bodo Moeller]
1401 *) Fix ASN.1 parsing of certain invalid structures that can result
1402 in a denial of service. (CVE-2006-2937) [Steve Henson]
1404 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1405 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1407 *) Fix SSL client code which could crash if connecting to a
1408 malicious SSLv2 server. (CVE-2006-4343)
1409 [Tavis Ormandy and Will Drewry, Google Security Team]
1411 *) Change ciphersuite string processing so that an explicit
1412 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1413 will no longer include "AES128-SHA"), and any other similar
1414 ciphersuite (same bitmap) from *other* protocol versions (so that
1415 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1416 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1417 changes from 0.9.8b and 0.9.8d.
1420 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1422 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1423 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1425 *) Change the Unix randomness entropy gathering to use poll() when
1426 possible instead of select(), since the latter has some
1427 undesirable limitations.
1428 [Darryl Miles via Richard Levitte and Bodo Moeller]
1430 *) Disable rogue ciphersuites:
1432 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1433 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1434 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1436 The latter two were purportedly from
1437 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1440 Also deactive the remaining ciphersuites from
1441 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1442 unofficial, and the ID has long expired.
1445 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1446 dual-core machines) and other potential thread-safety issues.
1449 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1451 *) Adapt fipsld and the build system to link against the validated FIPS
1452 module in FIPS mode.
1455 *) Fixes for VC++ 2005 build under Windows.
1458 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1459 from a Windows bash shell such as MSYS. It is autodetected from the
1460 "config" script when run from a VC++ environment. Modify standard VC++
1461 build to use fipscanister.o from the GNU make build.
1464 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1466 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1467 The value now differs depending on if you build for FIPS or not.
1468 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1469 safely run with a non-FIPSed libcrypto, as it may crash because of
1470 the difference induced by this change.
1473 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1475 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1476 (part of SSL_OP_ALL). This option used to disable the
1477 countermeasure against man-in-the-middle protocol-version
1478 rollback in the SSL 2.0 server implementation, which is a bad
1479 idea. (CVE-2005-2969)
1481 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1482 for Information Security, National Institute of Advanced Industrial
1483 Science and Technology [AIST], Japan)]
1485 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1486 mainly for FIPS compliance and not fully integrated at this stage.
1489 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1490 the exponentiation using a fixed-length exponent. (Otherwise,
1491 the information leaked through timing could expose the secret key
1492 after many signatures; cf. Bleichenbacher's attack on DSA with
1496 *) Make a new fixed-window mod_exp implementation the default for
1497 RSA, DSA, and DH private-key operations so that the sequence of
1498 squares and multiplies and the memory access pattern are
1499 independent of the particular secret key. This will mitigate
1500 cache-timing and potential related attacks.
1502 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1503 and this is automatically used by BN_mod_exp_mont() if the new flag
1504 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1505 will use this BN flag for private exponents unless the flag
1506 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1507 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1509 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1511 *) Change the client implementation for SSLv23_method() and
1512 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1513 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1514 (Previously, the SSL 2.0 backwards compatible Client Hello
1515 message format would be used even with SSL_OP_NO_SSLv2.)
1518 *) Add support for smime-type MIME parameter in S/MIME messages which some
1522 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1523 a threadsafe manner. Modify rsa code to use new function and add calls
1524 to dsa and dh code (which had race conditions before).
1527 *) Include the fixed error library code in the C error file definitions
1528 instead of fixing them up at runtime. This keeps the error code
1529 structures constant.
1532 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1534 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1537 *) Fixes for newer kerberos headers. NB: the casts are needed because
1538 the 'length' field is signed on one version and unsigned on another
1539 with no (?) obvious way to tell the difference, without these VC++
1540 complains. Also the "definition" of FAR (blank) is no longer included
1541 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1542 some needed definitions.
1545 *) Undo Cygwin change.
1548 *) Added support for proxy certificates according to RFC 3820.
1549 Because they may be a security thread to unaware applications,
1550 they must be explicitely allowed in run-time. See
1551 docs/HOWTO/proxy_certificates.txt for further information.
1554 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1556 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1557 server and client random values. Previously
1558 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1559 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1561 This change has negligible security impact because:
1563 1. Server and client random values still have 24 bytes of pseudo random
1566 2. Server and client random values are sent in the clear in the initial
1569 3. The master secret is derived using the premaster secret (48 bytes in
1570 size for static RSA ciphersuites) as well as client server and random
1573 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1576 [Stephen Henson, reported by UK NISCC]
1578 *) Use Windows randomness collection on Cygwin.
1581 *) Fix hang in EGD/PRNGD query when communication socket is closed
1582 prematurely by EGD/PRNGD.
1583 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1585 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1588 *) Back-port of selected performance improvements from development
1589 branch, as well as improved support for PowerPC platforms.
1592 *) Add lots of checks for memory allocation failure, error codes to indicate
1593 failure and freeing up memory if a failure occurs.
1594 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1596 *) Add new -passin argument to dgst.
1599 *) Perform some character comparisons of different types in X509_NAME_cmp:
1600 this is needed for some certificates that reencode DNs into UTF8Strings
1601 (in violation of RFC3280) and can't or wont issue name rollover
1605 *) Make an explicit check during certificate validation to see that
1606 the CA setting in each certificate on the chain is correct. As a
1607 side effect always do the following basic checks on extensions,
1608 not just when there's an associated purpose to the check:
1610 - if there is an unhandled critical extension (unless the user
1611 has chosen to ignore this fault)
1612 - if the path length has been exceeded (if one is set at all)
1613 - that certain extensions fit the associated purpose (if one has
1617 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1619 *) Avoid a race condition when CRLs are checked in a multi threaded
1620 environment. This would happen due to the reordering of the revoked
1621 entries during signature checking and serial number lookup. Now the
1622 encoding is cached and the serial number sort performed under a lock.
1623 Add new STACK function sk_is_sorted().
1626 *) Add Delta CRL to the extension code.
1629 *) Various fixes to s3_pkt.c so alerts are sent properly.
1630 [David Holmes <d.holmes@f5.com>]
1632 *) Reduce the chances of duplicate issuer name and serial numbers (in
1633 violation of RFC3280) using the OpenSSL certificate creation utilities.
1634 This is done by creating a random 64 bit value for the initial serial
1635 number when a serial number file is created or when a self signed
1636 certificate is created using 'openssl req -x509'. The initial serial
1637 number file is created using 'openssl x509 -next_serial' in CA.pl
1638 rather than being initialized to 1.
1641 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1643 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1644 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1645 [Joe Orton, Steve Henson]
1647 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1649 [Joe Orton, Steve Henson]
1651 *) Make it possible to have multiple active certificates with the same
1652 subject in the CA index file. This is done only if the keyword
1653 'unique_subject' is set to 'no' in the main CA section (default
1654 if 'CA_default') of the configuration file. The value is saved
1655 with the database itself in a separate index attribute file,
1656 named like the index file with '.attr' appended to the name.
1659 *) X509 verify fixes. Disable broken certificate workarounds when
1660 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1661 keyUsage extension present. Don't accept CRLs with unhandled critical
1662 extensions: since verify currently doesn't process CRL extensions this
1663 rejects a CRL with *any* critical extensions. Add new verify error codes
1667 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1668 A clarification of RFC2560 will require the use of OCTET STRINGs and
1669 some implementations cannot handle the current raw format. Since OpenSSL
1670 copies and compares OCSP nonces as opaque blobs without any attempt at
1671 parsing them this should not create any compatibility issues.
1674 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1675 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1676 this HMAC (and other) operations are several times slower than OpenSSL
1680 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1681 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1683 *) Use the correct content when signing type "other".
1686 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1688 *) Fix various bugs revealed by running the NISCC test suite:
1690 Stop out of bounds reads in the ASN1 code when presented with
1691 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1693 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1695 If verify callback ignores invalid public key errors don't try to check
1696 certificate signature with the NULL public key.
1700 *) New -ignore_err option in ocsp application to stop the server
1701 exiting on the first error in a request.
1704 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1705 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1709 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1710 extra data after the compression methods not only for TLS 1.0
1711 but also for SSL 3.0 (as required by the specification).
1712 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1714 *) Change X509_certificate_type() to mark the key as exported/exportable
1715 when it's 512 *bits* long, not 512 bytes.
1718 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1719 blocks during encryption.
1722 *) Various fixes to base64 BIO and non blocking I/O. On write
1723 flushes were not handled properly if the BIO retried. On read
1724 data was not being buffered properly and had various logic bugs.
1725 This also affects blocking I/O when the data being decoded is a
1729 *) Various S/MIME bugfixes and compatibility changes:
1730 output correct application/pkcs7 MIME type if
1731 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1732 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1733 of files as .eml work). Correctly handle very long lines in MIME
1737 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1739 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1740 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1741 a protocol version number mismatch like a decryption error
1742 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1745 *) Turn on RSA blinding by default in the default implementation
1746 to avoid a timing attack. Applications that don't want it can call
1747 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1748 They would be ill-advised to do so in most cases.
1749 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1751 *) Change RSA blinding code so that it works when the PRNG is not
1752 seeded (in this case, the secret RSA exponent is abused as
1753 an unpredictable seed -- if it is not unpredictable, there
1754 is no point in blinding anyway). Make RSA blinding thread-safe
1755 by remembering the creator's thread ID in rsa->blinding and
1756 having all other threads use local one-time blinding factors
1757 (this requires more computation than sharing rsa->blinding, but
1758 avoids excessive locking; and if an RSA object is not shared
1759 between threads, blinding will still be very fast).
1762 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1763 ENGINE as defaults for all supported algorithms irrespective of
1764 the 'flags' parameter. 'flags' is now honoured, so applications
1765 should make sure they are passing it correctly.
1768 *) Target "mingw" now allows native Windows code to be generated in
1769 the Cygwin environment as well as with the MinGW compiler.
1772 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1774 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1775 via timing by performing a MAC computation even if incorrrect
1776 block cipher padding has been found. This is a countermeasure
1777 against active attacks where the attacker has to distinguish
1778 between bad padding and a MAC verification error. (CVE-2003-0078)
1780 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1781 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1782 Martin Vuagnoux (EPFL, Ilion)]
1784 *) Make the no-err option work as intended. The intention with no-err
1785 is not to have the whole error stack handling routines removed from
1786 libcrypto, it's only intended to remove all the function name and
1787 reason texts, thereby removing some of the footprint that may not
1788 be interesting if those errors aren't displayed anyway.
1790 NOTE: it's still possible for any application or module to have it's
1791 own set of error texts inserted. The routines are there, just not
1792 used by default when no-err is given.
1795 *) Add support for FreeBSD on IA64.
1796 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1798 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1799 Kerberos function mit_des_cbc_cksum(). Before this change,
1800 the value returned by DES_cbc_cksum() was like the one from
1801 mit_des_cbc_cksum(), except the bytes were swapped.
1802 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1804 *) Allow an application to disable the automatic SSL chain building.
1805 Before this a rather primitive chain build was always performed in
1806 ssl3_output_cert_chain(): an application had no way to send the
1807 correct chain if the automatic operation produced an incorrect result.
1809 Now the chain builder is disabled if either:
1811 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1813 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1815 The reasoning behind this is that an application would not want the
1816 auto chain building to take place if extra chain certificates are
1817 present and it might also want a means of sending no additional
1818 certificates (for example the chain has two certificates and the
1822 *) Add the possibility to build without the ENGINE framework.
1823 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1825 *) Under Win32 gmtime() can return NULL: check return value in
1826 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1829 *) DSA routines: under certain error conditions uninitialized BN objects
1830 could be freed. Solution: make sure initialization is performed early
1831 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1832 Nils Larsch <nla@trustcenter.de> via PR#459)
1835 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1836 checked on reconnect on the client side, therefore session resumption
1837 could still fail with a "ssl session id is different" error. This
1838 behaviour is masked when SSL_OP_ALL is used due to
1839 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1840 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1841 followup to PR #377.
1844 *) IA-32 assembler support enhancements: unified ELF targets, support
1845 for SCO/Caldera platforms, fix for Cygwin shared build.
1848 *) Add support for FreeBSD on sparc64. As a consequence, support for
1849 FreeBSD on non-x86 processors is separate from x86 processors on
1850 the config script, much like the NetBSD support.
1851 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1853 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1855 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1858 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1859 code (06) was taken as the first octet of the session ID and the last
1860 octet was ignored consequently. As a result SSLv2 client side session
1861 caching could not have worked due to the session ID mismatch between
1863 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1867 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1868 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1872 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1873 seems that in spite of existing for more than a year, many application
1874 author have done nothing to provide the necessary callbacks, which
1875 means that this particular engine will not work properly anywhere.
1876 This is a very unfortunate situation which forces us, in the name
1877 of usability, to give the hw_ncipher.c a static lock, which is part
1879 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1880 appear in 0.9.8 or later. We EXPECT application authors to have
1881 dealt properly with this when 0.9.8 is released (unless we actually
1882 make such changes in the libcrypto locking code that changes will
1883 have to be made anyway).
1886 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1887 octets have been read, EOF or an error occurs. Without this change
1888 some truncated ASN1 structures will not produce an error.
1891 *) Disable Heimdal support, since it hasn't been fully implemented.
1892 Still give the possibility to force the use of Heimdal, but with
1893 warnings and a request that patches get sent to openssl-dev.
1896 *) Add the VC-CE target, introduce the WINCE sysname, and add
1897 INSTALL.WCE and appropriate conditionals to make it build.
1898 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1900 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1901 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1902 edit numbers of the version.
1903 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1905 *) Introduce safe string copy and catenation functions
1906 (BUF_strlcpy() and BUF_strlcat()).
1907 [Ben Laurie (CHATS) and Richard Levitte]
1909 *) Avoid using fixed-size buffers for one-line DNs.
1910 [Ben Laurie (CHATS)]
1912 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1913 resizing buffers containing secrets, and use where appropriate.
1914 [Ben Laurie (CHATS)]
1916 *) Avoid using fixed size buffers for configuration file location.
1917 [Ben Laurie (CHATS)]
1919 *) Avoid filename truncation for various CA files.
1920 [Ben Laurie (CHATS)]
1922 *) Use sizeof in preference to magic numbers.
1923 [Ben Laurie (CHATS)]
1925 *) Avoid filename truncation in cert requests.
1926 [Ben Laurie (CHATS)]
1928 *) Add assertions to check for (supposedly impossible) buffer
1930 [Ben Laurie (CHATS)]
1932 *) Don't cache truncated DNS entries in the local cache (this could
1933 potentially lead to a spoofing attack).
1934 [Ben Laurie (CHATS)]
1936 *) Fix various buffers to be large enough for hex/decimal
1937 representations in a platform independent manner.
1938 [Ben Laurie (CHATS)]
1940 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1941 resizing buffers containing secrets, and use where appropriate.
1942 [Ben Laurie (CHATS)]
1944 *) Add BIO_indent() to avoid much slightly worrying code to do
1946 [Ben Laurie (CHATS)]
1948 *) Convert sprintf()/BIO_puts() to BIO_printf().
1949 [Ben Laurie (CHATS)]
1951 *) buffer_gets() could terminate with the buffer only half
1953 [Ben Laurie (CHATS)]
1955 *) Add assertions to prevent user-supplied crypto functions from
1956 overflowing internal buffers by having large block sizes, etc.
1957 [Ben Laurie (CHATS)]
1959 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1961 [Ben Laurie (CHATS)]
1963 *) Eliminate unused copy of key in RC4.
1964 [Ben Laurie (CHATS)]
1966 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1967 [Ben Laurie (CHATS)]
1969 *) Fix off-by-one error in EGD path.
1970 [Ben Laurie (CHATS)]
1972 *) If RANDFILE path is too long, ignore instead of truncating.
1973 [Ben Laurie (CHATS)]
1975 *) Eliminate unused and incorrectly sized X.509 structure
1977 [Ben Laurie (CHATS)]
1979 *) Eliminate unused and dangerous function knumber().
1980 [Ben Laurie (CHATS)]
1982 *) Eliminate unused and dangerous structure, KSSL_ERR.
1983 [Ben Laurie (CHATS)]
1985 *) Protect against overlong session ID context length in an encoded
1986 session object. Since these are local, this does not appear to be
1988 [Ben Laurie (CHATS)]
1990 *) Change from security patch (see 0.9.6e below) that did not affect
1991 the 0.9.6 release series:
1993 Remote buffer overflow in SSL3 protocol - an attacker could
1994 supply an oversized master key in Kerberos-enabled versions.
1996 [Ben Laurie (CHATS)]
1998 *) Change the SSL kerb5 codes to match RFC 2712.
2001 *) Make -nameopt work fully for req and add -reqopt switch.
2002 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2004 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2005 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2007 *) Make sure tests can be performed even if the corresponding algorithms
2008 have been removed entirely. This was also the last step to make
2009 OpenSSL compilable with DJGPP under all reasonable conditions.
2010 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2012 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2013 to allow version independent disabling of normally unselected ciphers,
2014 which may be activated as a side-effect of selecting a single cipher.
2016 (E.g., cipher list string "RSA" enables ciphersuites that are left
2017 out of "ALL" because they do not provide symmetric encryption.
2018 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2019 [Lutz Jaenicke, Bodo Moeller]
2021 *) Add appropriate support for separate platform-dependent build
2022 directories. The recommended way to make a platform-dependent
2023 build directory is the following (tested on Linux), maybe with
2026 # Place yourself outside of the OpenSSL source tree. In
2027 # this example, the environment variable OPENSSL_SOURCE
2028 # is assumed to contain the absolute OpenSSL source directory.
2029 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2030 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2031 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2032 mkdir -p `dirname $F`
2033 ln -s $OPENSSL_SOURCE/$F $F
2036 To be absolutely sure not to disturb the source tree, a "make clean"
2037 is a good thing. If it isn't successfull, don't worry about it,
2038 it probably means the source directory is very clean.
2041 *) Make sure any ENGINE control commands make local copies of string
2042 pointers passed to them whenever necessary. Otherwise it is possible
2043 the caller may have overwritten (or deallocated) the original string
2044 data when a later ENGINE operation tries to use the stored values.
2045 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2047 *) Improve diagnostics in file reading and command-line digests.
2048 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2050 *) Add AES modes CFB and OFB to the object database. Correct an
2051 error in AES-CFB decryption.
2054 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2055 allows existing EVP_CIPHER_CTX structures to be reused after
2056 calling EVP_*Final(). This behaviour is used by encryption
2057 BIOs and some applications. This has the side effect that
2058 applications must explicitly clean up cipher contexts with
2059 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2062 *) Check the values of dna and dnb in bn_mul_recursive before calling
2063 bn_mul_comba (a non zero value means the a or b arrays do not contain
2064 n2 elements) and fallback to bn_mul_normal if either is not zero.
2067 *) Fix escaping of non-ASCII characters when using the -subj option
2068 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2071 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2072 form for "surname", serialNumber has no short form.
2073 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2074 therefore remove "mail" short name for "internet 7".
2075 The OID for unique identifiers in X509 certificates is
2076 x500UniqueIdentifier, not uniqueIdentifier.
2077 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2080 *) Add an "init" command to the ENGINE config module and auto initialize
2081 ENGINEs. Without any "init" command the ENGINE will be initialized
2082 after all ctrl commands have been executed on it. If init=1 the
2083 ENGINE is initailized at that point (ctrls before that point are run
2084 on the uninitialized ENGINE and after on the initialized one). If
2085 init=0 then the ENGINE will not be iniatialized at all.
2088 *) Fix the 'app_verify_callback' interface so that the user-defined
2089 argument is actually passed to the callback: In the
2090 SSL_CTX_set_cert_verify_callback() prototype, the callback
2091 declaration has been changed from
2094 int (*cb)(X509_STORE_CTX *,void *);
2095 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2096 i=s->ctx->app_verify_callback(&ctx)
2097 has been changed into
2098 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2100 To update applications using SSL_CTX_set_cert_verify_callback(),
2101 a dummy argument can be added to their callback functions.
2102 [D. K. Smetters <smetters@parc.xerox.com>]
2104 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2105 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2107 *) Add and OPENSSL_LOAD_CONF define which will cause
2108 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2109 This allows older applications to transparently support certain
2110 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2111 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2112 load the config file and OPENSSL_add_all_algorithms_conf() which will
2113 always load it have also been added.
2116 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2117 Adjust NIDs and EVP layer.
2118 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2120 *) Config modules support in openssl utility.
2122 Most commands now load modules from the config file,
2123 though in a few (such as version) this isn't done
2124 because it couldn't be used for anything.
2126 In the case of ca and req the config file used is
2127 the same as the utility itself: that is the -config
2128 command line option can be used to specify an
2132 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2133 use "openssl_conf" if filename is NULL use default openssl config file.
2136 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2137 config section name. Add a new flag to tolerate a missing config file
2138 and move code to CONF_modules_load_file().
2141 *) Support for crypto accelerator cards from Accelerated Encryption
2142 Processing, www.aep.ie. (Use engine 'aep')
2143 The support was copied from 0.9.6c [engine] and adapted/corrected
2144 to work with the new engine framework.
2145 [AEP Inc. and Richard Levitte]
2147 *) Support for SureWare crypto accelerator cards from Baltimore
2148 Technologies. (Use engine 'sureware')
2149 The support was copied from 0.9.6c [engine] and adapted
2150 to work with the new engine framework.
2153 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2154 make the newer ENGINE framework commands for the CHIL engine work.
2155 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2157 *) Make it possible to produce shared libraries on ReliantUNIX.
2158 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2160 *) Add the configuration target debug-linux-ppro.
2161 Make 'openssl rsa' use the general key loading routines
2162 implemented in apps.c, and make those routines able to
2163 handle the key format FORMAT_NETSCAPE and the variant
2165 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2167 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2168 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2170 *) Add -keyform to rsautl, and document -engine.
2171 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2173 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2174 BIO_R_NO_SUCH_FILE error code rather than the generic
2175 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2178 *) Add new functions
2180 ERR_peek_last_error_line
2181 ERR_peek_last_error_line_data.
2182 These are similar to
2185 ERR_peek_error_line_data,
2186 but report on the latest error recorded rather than the first one
2187 still in the error queue.
2188 [Ben Laurie, Bodo Moeller]
2190 *) default_algorithms option in ENGINE config module. This allows things
2192 default_algorithms = ALL
2193 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2196 *) Prelminary ENGINE config module.
2199 *) New experimental application configuration code.
2202 *) Change the AES code to follow the same name structure as all other
2203 symmetric ciphers, and behave the same way. Move everything to
2204 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2205 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2207 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2208 [Ben Laurie and Theo de Raadt]
2210 *) Add option to output public keys in req command.
2211 [Massimiliano Pala madwolf@openca.org]
2213 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2214 (up to about 10% better than before for P-192 and P-224).
2217 *) New functions/macros
2219 SSL_CTX_set_msg_callback(ctx, cb)
2220 SSL_CTX_set_msg_callback_arg(ctx, arg)
2221 SSL_set_msg_callback(ssl, cb)
2222 SSL_set_msg_callback_arg(ssl, arg)
2224 to request calling a callback function
2226 void cb(int write_p, int version, int content_type,
2227 const void *buf, size_t len, SSL *ssl, void *arg)
2229 whenever a protocol message has been completely received
2230 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2231 protocol version according to which the SSL library interprets
2232 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2233 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2234 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2235 specification (change_cipher_spec(20), alert(21), handshake(22)).
2236 'buf' and 'len' point to the actual message, 'ssl' to the
2237 SSL object, and 'arg' is the application-defined value set by
2238 SSL[_CTX]_set_msg_callback_arg().
2240 'openssl s_client' and 'openssl s_server' have new '-msg' options
2241 to enable a callback that displays all protocol messages.
2244 *) Change the shared library support so shared libraries are built as
2245 soon as the corresponding static library is finished, and thereby get
2246 openssl and the test programs linked against the shared library.
2247 This still only happens when the keyword "shard" has been given to
2248 the configuration scripts.
2250 NOTE: shared library support is still an experimental thing, and
2251 backward binary compatibility is still not guaranteed.
2252 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2254 *) Add support for Subject Information Access extension.
2255 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2257 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2258 additional bytes when new memory had to be allocated, not just
2259 when reusing an existing buffer.
2262 *) New command line and configuration option 'utf8' for the req command.
2263 This allows field values to be specified as UTF8 strings.
2266 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2267 runs for the former and machine-readable output for the latter.
2270 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2271 of the e-mail address in the DN (i.e., it will go into a certificate
2272 extension only). The new configuration file option 'email_in_dn = no'
2273 has the same effect.
2274 [Massimiliano Pala madwolf@openca.org]
2276 *) Change all functions with names starting with des_ to be starting
2277 with DES_ instead. Add wrappers that are compatible with libdes,
2278 but are named _ossl_old_des_*. Finally, add macros that map the
2279 des_* symbols to the corresponding _ossl_old_des_* if libdes
2280 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2281 desired, the des_* symbols will be mapped to DES_*, with one
2284 Since we provide two compatibility mappings, the user needs to
2285 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2286 compatibility is desired. The default (i.e., when that macro
2287 isn't defined) is OpenSSL 0.9.6c compatibility.
2289 There are also macros that enable and disable the support of old
2290 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2291 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2292 are defined, the default will apply: to support the old des routines.
2294 In either case, one must include openssl/des.h to get the correct
2295 definitions. Do not try to just include openssl/des_old.h, that
2298 NOTE: This is a major break of an old API into a new one. Software
2299 authors are encouraged to switch to the DES_ style functions. Some
2300 time in the future, des_old.h and the libdes compatibility functions
2301 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2302 default), and then completely removed.
2305 *) Test for certificates which contain unsupported critical extensions.
2306 If such a certificate is found during a verify operation it is
2307 rejected by default: this behaviour can be overridden by either
2308 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2309 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2310 X509_supported_extension() has also been added which returns 1 if a
2311 particular extension is supported.
2314 *) Modify the behaviour of EVP cipher functions in similar way to digests
2315 to retain compatibility with existing code.
2318 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2319 compatibility with existing code. In particular the 'ctx' parameter does
2320 not have to be to be initialized before the call to EVP_DigestInit() and
2321 it is tidied up after a call to EVP_DigestFinal(). New function
2322 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2323 EVP_MD_CTX_copy() changed to not require the destination to be
2324 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2325 requires the destination to be valid.
2327 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2328 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2331 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2332 so that complete 'Handshake' protocol structures are kept in memory
2333 instead of overwriting 'msg_type' and 'length' with 'body' data.
2336 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2337 [Massimo Santin via Richard Levitte]
2339 *) Major restructuring to the underlying ENGINE code. This includes
2340 reduction of linker bloat, separation of pure "ENGINE" manipulation
2341 (initialisation, etc) from functionality dealing with implementations
2342 of specific crypto iterfaces. This change also introduces integrated
2343 support for symmetric ciphers and digest implementations - so ENGINEs
2344 can now accelerate these by providing EVP_CIPHER and EVP_MD
2345 implementations of their own. This is detailed in crypto/engine/README
2346 as it couldn't be adequately described here. However, there are a few
2347 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2348 were changed in the original introduction of ENGINE code have now
2349 reverted back - the hooking from this code to ENGINE is now a good
2350 deal more passive and at run-time, operations deal directly with
2351 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2352 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2353 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2354 they were not being used by the framework as there is no concept of a
2355 BIGNUM_METHOD and they could not be generalised to the new
2356 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2357 ENGINE_cpy() has been removed as it cannot be consistently defined in
2361 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2364 *) Change mkdef.pl to sort symbols that get the same entry number,
2365 and make sure the automatically generated functions ERR_load_*
2366 become part of libeay.num as well.
2369 *) New function SSL_renegotiate_pending(). This returns true once
2370 renegotiation has been requested (either SSL_renegotiate() call
2371 or HelloRequest/ClientHello receveived from the peer) and becomes
2372 false once a handshake has been completed.
2373 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2374 sends a HelloRequest, but does not ensure that a handshake takes
2375 place. SSL_renegotiate_pending() is useful for checking if the
2376 client has followed the request.)
2379 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2380 By default, clients may request session resumption even during
2381 renegotiation (if session ID contexts permit); with this option,
2382 session resumption is possible only in the first handshake.
2384 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2385 more bits available for options that should not be part of
2386 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2389 *) Add some demos for certificate and certificate request creation.
2392 *) Make maximum certificate chain size accepted from the peer application
2393 settable (SSL*_get/set_max_cert_list()), as proposed by
2394 "Douglas E. Engert" <deengert@anl.gov>.
2397 *) Add support for shared libraries for Unixware-7
2398 (Boyd Lynn Gerber <gerberb@zenez.com>).
2401 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2402 be done prior to destruction. Use this to unload error strings from
2403 ENGINEs that load their own error strings. NB: This adds two new API
2404 functions to "get" and "set" this destroy handler in an ENGINE.
2407 *) Alter all existing ENGINE implementations (except "openssl" and
2408 "openbsd") to dynamically instantiate their own error strings. This
2409 makes them more flexible to be built both as statically-linked ENGINEs
2410 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2411 Also, add stub code to each that makes building them as self-contained
2412 shared-libraries easier (see README.ENGINE).
2415 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2416 implementations into applications that are completely implemented in
2417 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2418 commands that can be used to configure what shared-library to load and
2419 to control aspects of the way it is handled. Also, made an update to
2420 the README.ENGINE file that brings its information up-to-date and
2421 provides some information and instructions on the "dynamic" ENGINE
2422 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2425 *) Make it possible to unload ranges of ERR strings with a new
2426 "ERR_unload_strings" function.
2429 *) Add a copy() function to EVP_MD.
2432 *) Make EVP_MD routines take a context pointer instead of just the
2433 md_data void pointer.
2436 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2437 that the digest can only process a single chunk of data
2438 (typically because it is provided by a piece of
2439 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2440 is only going to provide a single chunk of data, and hence the
2441 framework needn't accumulate the data for oneshot drivers.
2444 *) As with "ERR", make it possible to replace the underlying "ex_data"
2445 functions. This change also alters the storage and management of global
2446 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2447 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2448 index counters. The API functions that use this state have been changed
2449 to take a "class_index" rather than pointers to the class's local STACK
2450 and counter, and there is now an API function to dynamically create new
2451 classes. This centralisation allows us to (a) plug a lot of the
2452 thread-safety problems that existed, and (b) makes it possible to clean
2453 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2454 such data would previously have always leaked in application code and
2455 workarounds were in place to make the memory debugging turn a blind eye
2456 to it. Application code that doesn't use this new function will still
2457 leak as before, but their memory debugging output will announce it now
2458 rather than letting it slide.
2460 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2461 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2462 has a return value to indicate success or failure.
2465 *) Make it possible to replace the underlying "ERR" functions such that the
2466 global state (2 LHASH tables and 2 locks) is only used by the "default"
2467 implementation. This change also adds two functions to "get" and "set"
2468 the implementation prior to it being automatically set the first time
2469 any other ERR function takes place. Ie. an application can call "get",
2470 pass the return value to a module it has just loaded, and that module
2471 can call its own "set" function using that value. This means the
2472 module's "ERR" operations will use (and modify) the error state in the
2473 application and not in its own statically linked copy of OpenSSL code.
2476 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2477 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2478 the operation, and provides a more encapsulated way for external code
2479 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2480 to use these functions rather than manually incrementing the counts.
2482 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2485 *) Add EVP test program.
2488 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2491 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2492 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2493 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2494 These allow a CRL to be built without having to access X509_CRL fields
2495 directly. Modify 'ca' application to use new functions.
2498 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2499 bug workarounds. Rollback attack detection is a security feature.
2500 The problem will only arise on OpenSSL servers when TLSv1 is not
2501 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2502 Software authors not wanting to support TLSv1 will have special reasons
2503 for their choice and can explicitly enable this option.
2504 [Bodo Moeller, Lutz Jaenicke]
2506 *) Rationalise EVP so it can be extended: don't include a union of
2507 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2508 (similar to those existing for EVP_CIPHER_CTX).
2513 EVP_MD_CTX_init(&md); /* new function call */
2514 EVP_DigestInit(&md, EVP_sha1());
2515 EVP_DigestUpdate(&md, in, len);
2516 EVP_DigestFinal(&md, out, NULL);
2517 EVP_MD_CTX_cleanup(&md); /* new function call */
2521 *) Make DES key schedule conform to the usual scheme, as well as
2522 correcting its structure. This means that calls to DES functions
2523 now have to pass a pointer to a des_key_schedule instead of a
2524 plain des_key_schedule (which was actually always a pointer
2527 des_key_schedule ks;
2529 des_set_key_checked(..., &ks);
2530 des_ncbc_encrypt(..., &ks, ...);
2532 (Note that a later change renames 'des_...' into 'DES_...'.)
2535 *) Initial reduction of linker bloat: the use of some functions, such as
2536 PEM causes large amounts of unused functions to be linked in due to
2537 poor organisation. For example pem_all.c contains every PEM function
2538 which has a knock on effect of linking in large amounts of (unused)
2539 ASN1 code. Grouping together similar functions and splitting unrelated
2540 functions prevents this.
2543 *) Cleanup of EVP macros.
2546 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2547 correct _ecb suffix.
2550 *) Add initial OCSP responder support to ocsp application. The
2551 revocation information is handled using the text based index
2552 use by the ca application. The responder can either handle
2553 requests generated internally, supplied in files (for example
2554 via a CGI script) or using an internal minimal server.
2557 *) Add configuration choices to get zlib compression for TLS.
2560 *) Changes to Kerberos SSL for RFC 2712 compliance:
2561 1. Implemented real KerberosWrapper, instead of just using
2562 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2563 2. Implemented optional authenticator field of KerberosWrapper.
2565 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2566 and authenticator structs; see crypto/krb5/.
2568 Generalized Kerberos calls to support multiple Kerberos libraries.
2569 [Vern Staats <staatsvr@asc.hpc.mil>,
2570 Jeffrey Altman <jaltman@columbia.edu>
2571 via Richard Levitte]
2573 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2574 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2575 values for each of the key sizes rather than having just
2576 parameters (and 'speed' generating keys each time).
2579 *) Speed up EVP routines.
2582 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2583 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2584 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2585 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2587 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2588 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2589 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2592 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2594 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2597 *) Added the OS2-EMX target.
2598 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2600 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2601 to support NCONF routines in extension code. New function CONF_set_nconf()
2602 to allow functions which take an NCONF to also handle the old LHASH
2603 structure: this means that the old CONF compatible routines can be
2604 retained (in particular wrt extensions) without having to duplicate the
2605 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2608 *) Enhance the general user interface with mechanisms for inner control
2609 and with possibilities to have yes/no kind of prompts.
2612 *) Change all calls to low level digest routines in the library and
2613 applications to use EVP. Add missing calls to HMAC_cleanup() and
2614 don't assume HMAC_CTX can be copied using memcpy().
2615 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2617 *) Add the possibility to control engines through control names but with
2618 arbitrary arguments instead of just a string.
2619 Change the key loaders to take a UI_METHOD instead of a callback
2620 function pointer. NOTE: this breaks binary compatibility with earlier
2621 versions of OpenSSL [engine].
2622 Adapt the nCipher code for these new conditions and add a card insertion
2626 *) Enhance the general user interface with mechanisms to better support
2627 dialog box interfaces, application-defined prompts, the possibility
2628 to use defaults (for example default passwords from somewhere else)
2629 and interrupts/cancellations.
2632 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2633 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2636 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2637 tidy up some unnecessarily weird code in 'sk_new()').
2638 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2640 *) Change the key loading routines for ENGINEs to use the same kind
2641 callback (pem_password_cb) as all other routines that need this
2645 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2646 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2647 than this minimum value is recommended.
2650 *) New random seeder for OpenVMS, using the system process statistics
2651 that are easily reachable.
2654 *) Windows apparently can't transparently handle global
2655 variables defined in DLLs. Initialisations such as:
2657 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2659 wont compile. This is used by the any applications that need to
2660 declare their own ASN1 modules. This was fixed by adding the option
2661 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2662 needed for static libraries under Win32.
2665 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2666 setting of purpose and trust fields. New X509_STORE trust and
2667 purpose functions and tidy up setting in other SSL functions.
2670 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2671 structure. These are inherited by X509_STORE_CTX when it is
2672 initialised. This allows various defaults to be set in the
2673 X509_STORE structure (such as flags for CRL checking and custom
2674 purpose or trust settings) for functions which only use X509_STORE_CTX
2675 internally such as S/MIME.
2677 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2678 trust settings if they are not set in X509_STORE. This allows X509_STORE
2679 purposes and trust (in S/MIME for example) to override any set by default.
2681 Add command line options for CRL checking to smime, s_client and s_server
2685 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2686 are set then the CRL is looked up in the X509_STORE structure and
2687 its validity and signature checked, then if the certificate is found
2688 in the CRL the verify fails with a revoked error.
2690 Various new CRL related callbacks added to X509_STORE_CTX structure.
2692 Command line options added to 'verify' application to support this.
2694 This needs some additional work, such as being able to handle multiple
2695 CRLs with different times, extension based lookup (rather than just
2696 by subject name) and ultimately more complete V2 CRL extension
2700 *) Add a general user interface API (crypto/ui/). This is designed
2701 to replace things like des_read_password and friends (backward
2702 compatibility functions using this new API are provided).
2703 The purpose is to remove prompting functions from the DES code
2704 section as well as provide for prompting through dialog boxes in
2705 a window system and the like.
2708 *) Add "ex_data" support to ENGINE so implementations can add state at a
2709 per-structure level rather than having to store it globally.
2712 *) Make it possible for ENGINE structures to be copied when retrieved by
2713 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2714 This causes the "original" ENGINE structure to act like a template,
2715 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2716 operational state can be localised to each ENGINE structure, despite the
2717 fact they all share the same "methods". New ENGINE structures returned in
2718 this case have no functional references and the return value is the single
2719 structural reference. This matches the single structural reference returned
2720 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2724 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2725 needs to match any other type at all we need to manually clear the
2729 *) Changes to the "openssl engine" utility to include;
2730 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2731 about an ENGINE's available control commands.
2732 - executing control commands from command line arguments using the
2733 '-pre' and '-post' switches. '-post' is only used if '-t' is
2734 specified and the ENGINE is successfully initialised. The syntax for
2735 the individual commands are colon-separated, for example;
2736 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2739 *) New dynamic control command support for ENGINEs. ENGINEs can now
2740 declare their own commands (numbers), names (strings), descriptions,
2741 and input types for run-time discovery by calling applications. A
2742 subset of these commands are implicitly classed as "executable"
2743 depending on their input type, and only these can be invoked through
2744 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2745 can be based on user input, config files, etc). The distinction is
2746 that "executable" commands cannot return anything other than a boolean
2747 result and can only support numeric or string input, whereas some
2748 discoverable commands may only be for direct use through
2749 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2750 pointers, or other custom uses. The "executable" commands are to
2751 support parameterisations of ENGINE behaviour that can be
2752 unambiguously defined by ENGINEs and used consistently across any
2753 OpenSSL-based application. Commands have been added to all the
2754 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2755 control over shared-library paths without source code alterations.
2758 *) Changed all ENGINE implementations to dynamically allocate their
2759 ENGINEs rather than declaring them statically. Apart from this being
2760 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2761 this also allows the implementations to compile without using the
2762 internal engine_int.h header.
2765 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2766 'const' value. Any code that should be able to modify a RAND_METHOD
2767 should already have non-const pointers to it (ie. they should only
2768 modify their own ones).
2771 *) Made a variety of little tweaks to the ENGINE code.
2772 - "atalla" and "ubsec" string definitions were moved from header files
2773 to C code. "nuron" string definitions were placed in variables
2774 rather than hard-coded - allowing parameterisation of these values
2775 later on via ctrl() commands.
2776 - Removed unused "#if 0"'d code.
2777 - Fixed engine list iteration code so it uses ENGINE_free() to release
2778 structural references.
2779 - Constified the RAND_METHOD element of ENGINE structures.
2780 - Constified various get/set functions as appropriate and added
2781 missing functions (including a catch-all ENGINE_cpy that duplicates
2782 all ENGINE values onto a new ENGINE except reference counts/state).
2783 - Removed NULL parameter checks in get/set functions. Setting a method
2784 or function to NULL is a way of cancelling out a previously set
2785 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2786 and doesn't justify the extra error symbols and code.
2787 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2788 flags from engine_int.h to engine.h.
2789 - Changed prototypes for ENGINE handler functions (init(), finish(),
2790 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2793 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2794 to the algorithm using long division. The binary algorithm can be
2795 used only if the modulus is odd. On 32-bit systems, it is faster
2796 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2797 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2798 up to 450 bits. In 64-bit environments, the binary algorithm
2799 appears to be advantageous for much longer moduli; here we use it
2800 for moduli up to 2048 bits.
2803 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2804 could not support the combine flag in choice fields.
2807 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2808 extensions from a certificate request to the certificate.
2811 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2812 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2813 file: this allows the display of the certificate about to be
2814 signed to be customised, to allow certain fields to be included
2815 or excluded and extension details. The old system didn't display
2816 multicharacter strings properly, omitted fields not in the policy
2817 and couldn't display additional details such as extensions.
2820 *) Function EC_POINTs_mul for multiple scalar multiplication
2821 of an arbitrary number of elliptic curve points
2822 \sum scalars[i]*points[i],
2823 optionally including the generator defined for the EC_GROUP:
2824 scalar*generator + \sum scalars[i]*points[i].
2826 EC_POINT_mul is a simple wrapper function for the typical case
2827 that the point list has just one item (besides the optional
2831 *) First EC_METHODs for curves over GF(p):
2833 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2834 operations and provides various method functions that can also
2835 operate with faster implementations of modular arithmetic.
2837 EC_GFp_mont_method() reuses most functions that are part of
2838 EC_GFp_simple_method, but uses Montgomery arithmetic.
2840 [Bodo Moeller; point addition and point doubling
2841 implementation directly derived from source code provided by
2842 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2844 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2845 crypto/ec/ec_lib.c):
2847 Curves are EC_GROUP objects (with an optional group generator)
2848 based on EC_METHODs that are built into the library.
2850 Points are EC_POINT objects based on EC_GROUP objects.
2852 Most of the framework would be able to handle curves over arbitrary
2853 finite fields, but as there are no obvious types for fields other
2854 than GF(p), some functions are limited to that for now.
2857 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2858 that the file contains a complete HTTP response.
2861 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2862 change the def and num file printf format specifier from "%-40sXXX"
2863 to "%-39s XXX". The latter will always guarantee a space after the
2864 field while the former will cause them to run together if the field
2865 is 40 of more characters long.
2868 *) Constify the cipher and digest 'method' functions and structures
2869 and modify related functions to take constant EVP_MD and EVP_CIPHER
2873 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2874 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2877 *) Modify EVP_Digest*() routines so they now return values. Although the
2878 internal software routines can never fail additional hardware versions
2882 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2884 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2885 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2888 ERR_R_NESTED_ASN1_ERROR
2890 ERR_R_MISSING_ASN1_EOS
2891 were 4 .. 9, conflicting with
2892 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2894 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2895 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2897 Add new error code 'ERR_R_INTERNAL_ERROR'.
2900 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2904 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2905 sets the subject name for a new request or supersedes the
2906 subject name in a given request. Formats that can be parsed are
2907 'CN=Some Name, OU=myOU, C=IT'
2909 'CN=Some Name/OU=myOU/C=IT'.
2911 Add options '-batch' and '-verbose' to 'openssl req'.
2912 [Massimiliano Pala <madwolf@hackmasters.net>]
2914 *) Introduce the possibility to access global variables through
2915 functions on platform were that's the best way to handle exporting
2916 global variables in shared libraries. To enable this functionality,
2917 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2918 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2919 is normally done by Configure or something similar).
2921 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2922 in the source file (foo.c) like this:
2924 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2925 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2927 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2928 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2930 OPENSSL_DECLARE_GLOBAL(int,foo);
2931 #define foo OPENSSL_GLOBAL_REF(foo)
2932 OPENSSL_DECLARE_GLOBAL(double,bar);
2933 #define bar OPENSSL_GLOBAL_REF(bar)
2935 The #defines are very important, and therefore so is including the
2936 header file everywhere where the defined globals are used.
2938 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2939 of ASN.1 items, but that structure is a bit different.
2941 The largest change is in util/mkdef.pl which has been enhanced with
2942 better and easier to understand logic to choose which symbols should
2943 go into the Windows .def files as well as a number of fixes and code
2944 cleanup (among others, algorithm keywords are now sorted
2945 lexicographically to avoid constant rewrites).
2948 *) In BN_div() keep a copy of the sign of 'num' before writing the
2949 result to 'rm' because if rm==num the value will be overwritten
2950 and produce the wrong result if 'num' is negative: this caused
2951 problems with BN_mod() and BN_nnmod().
2954 *) Function OCSP_request_verify(). This checks the signature on an
2955 OCSP request and verifies the signer certificate. The signer
2956 certificate is just checked for a generic purpose and OCSP request
2960 *) Add OCSP_check_validity() function to check the validity of OCSP
2961 responses. OCSP responses are prepared in real time and may only
2962 be a few seconds old. Simply checking that the current time lies
2963 between thisUpdate and nextUpdate max reject otherwise valid responses
2964 caused by either OCSP responder or client clock inaccuracy. Instead
2965 we allow thisUpdate and nextUpdate to fall within a certain period of
2966 the current time. The age of the response can also optionally be
2967 checked. Two new options -validity_period and -status_age added to
2971 *) If signature or public key algorithm is unrecognized print out its
2972 OID rather that just UNKNOWN.
2975 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2976 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2977 ID to be generated from the issuer certificate alone which can then be
2978 passed to OCSP_id_issuer_cmp().
2981 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2982 ASN1 modules to export functions returning ASN1_ITEM pointers
2983 instead of the ASN1_ITEM structures themselves. This adds several
2984 new macros which allow the underlying ASN1 function/structure to
2985 be accessed transparently. As a result code should not use ASN1_ITEM
2986 references directly (such as &X509_it) but instead use the relevant
2987 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2988 use of the new ASN1 code on platforms where exporting structures
2989 is problematical (for example in shared libraries) but exporting
2990 functions returning pointers to structures is not.
2993 *) Add support for overriding the generation of SSL/TLS session IDs.
2994 These callbacks can be registered either in an SSL_CTX or per SSL.
2995 The purpose of this is to allow applications to control, if they wish,
2996 the arbitrary values chosen for use as session IDs, particularly as it
2997 can be useful for session caching in multiple-server environments. A
2998 command-line switch for testing this (and any client code that wishes
2999 to use such a feature) has been added to "s_server".
3000 [Geoff Thorpe, Lutz Jaenicke]
3002 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3003 of the form '#if defined(...) || defined(...) || ...' and
3004 '#if !defined(...) && !defined(...) && ...'. This also avoids
3005 the growing number of special cases it was previously handling.
3008 *) Make all configuration macros available for application by making
3009 sure they are available in opensslconf.h, by giving them names starting
3010 with "OPENSSL_" to avoid conflicts with other packages and by making
3011 sure e_os2.h will cover all platform-specific cases together with
3013 Additionally, it is now possible to define configuration/platform-
3014 specific names (called "system identities"). In the C code, these
3015 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3016 macro with the name beginning with "OPENSSL_SYS_", which is determined
3017 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3021 *) New option -set_serial to 'req' and 'x509' this allows the serial
3022 number to use to be specified on the command line. Previously self
3023 signed certificates were hard coded with serial number 0 and the
3024 CA options of 'x509' had to use a serial number in a file which was
3028 *) New options to 'ca' utility to support V2 CRL entry extensions.
3029 Currently CRL reason, invalidity date and hold instruction are
3030 supported. Add new CRL extensions to V3 code and some new objects.
3033 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3034 disable standard block padding (aka PKCS#5 padding) in the EVP
3035 API, which was previously mandatory. This means that the data is
3036 not padded in any way and so the total length much be a multiple
3037 of the block size, otherwise an error occurs.
3040 *) Initial (incomplete) OCSP SSL support.
3043 *) New function OCSP_parse_url(). This splits up a URL into its host,
3044 port and path components: primarily to parse OCSP URLs. New -url
3045 option to ocsp utility.
3048 *) New nonce behavior. The return value of OCSP_check_nonce() now
3049 reflects the various checks performed. Applications can decide
3050 whether to tolerate certain situations such as an absent nonce
3051 in a response when one was present in a request: the ocsp application
3052 just prints out a warning. New function OCSP_add1_basic_nonce()
3053 this is to allow responders to include a nonce in a response even if
3054 the request is nonce-less.
3057 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3058 skipped when using openssl x509 multiple times on a single input file,
3059 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3062 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3063 set string type: to handle setting ASN1_TIME structures. Fix ca
3064 utility to correctly initialize revocation date of CRLs.
3067 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3068 the clients preferred ciphersuites and rather use its own preferences.
3069 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3070 Internet Explorer by ensuring unchanged hash method during stepup.
3071 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3074 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3075 to aes and add a new 'exist' option to print out symbols that don't
3079 *) Additional options to ocsp utility to allow flags to be set and
3080 additional certificates supplied.
3083 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3084 OCSP client a number of certificate to only verify the response
3088 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3089 handle the new API. Currently only ECB, CBC modes supported. Add new
3092 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3093 Encryption Standard (AES) Ciphersuites for Transport Layer
3094 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3095 not enabled by default and were not part of the "ALL" ciphersuite
3096 alias because they were not yet official; they could be
3097 explicitly requested by specifying the "AESdraft" ciphersuite
3098 group alias. In the final release of OpenSSL 0.9.7, the group
3099 alias is called "AES" and is part of "ALL".)
3100 [Ben Laurie, Steve Henson, Bodo Moeller]
3102 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3103 request to response.
3106 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3107 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3108 extract information from a certificate request. OCSP_response_create()
3109 creates a response and optionally adds a basic response structure.
3110 OCSP_basic_add1_status() adds a complete single response to a basic
3111 response and returns the OCSP_SINGLERESP structure just added (to allow
3112 extensions to be included for example). OCSP_basic_add1_cert() adds a
3113 certificate to a basic response and OCSP_basic_sign() signs a basic
3114 response with various flags. New helper functions ASN1_TIME_check()
3115 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3116 (converts ASN1_TIME to GeneralizedTime).
3119 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3120 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3121 structure from a certificate. X509_pubkey_digest() digests the public_key
3122 contents: this is used in various key identifiers.
3125 *) Make sk_sort() tolerate a NULL argument.
3126 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3128 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3129 passed by the function are trusted implicitly. If any of them signed the
3130 response then it is assumed to be valid and is not verified.
3133 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3134 to data. This was previously part of the PKCS7 ASN1 code. This
3135 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3136 [Steve Henson, reported by Kenneth R. Robinette
3137 <support@securenetterm.com>]
3139 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3140 routines: without these tracing memory leaks is very painful.
3141 Fix leaks in PKCS12 and PKCS7 routines.
3144 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3145 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3146 effectively meant GeneralizedTime would never be used. Now it
3147 is initialised to -1 but X509_time_adj() now has to check the value
3148 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3149 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3150 [Steve Henson, reported by Kenneth R. Robinette
3151 <support@securenetterm.com>]
3153 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3154 result in a zero length in the ASN1_INTEGER structure which was
3155 not consistent with the structure when d2i_ASN1_INTEGER() was used
3156 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3157 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3158 where it did not print out a minus for negative ASN1_INTEGER.
3161 *) Add summary printout to ocsp utility. The various functions which
3162 convert status values to strings have been renamed to:
3163 OCSP_response_status_str(), OCSP_cert_status_str() and
3164 OCSP_crl_reason_str() and are no longer static. New options
3165 to verify nonce values and to disable verification. OCSP response
3166 printout format cleaned up.
3169 *) Add additional OCSP certificate checks. These are those specified
3170 in RFC2560. This consists of two separate checks: the CA of the
3171 certificate being checked must either be the OCSP signer certificate
3172 or the issuer of the OCSP signer certificate. In the latter case the
3173 OCSP signer certificate must contain the OCSP signing extended key
3174 usage. This check is performed by attempting to match the OCSP
3175 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3176 in the OCSP_CERTID structures of the response.
3179 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3180 and related routines. This uses the standard OpenSSL certificate
3181 verify routines to perform initial checks (just CA validity) and
3182 to obtain the certificate chain. Then additional checks will be
3183 performed on the chain. Currently the root CA is checked to see
3184 if it is explicitly trusted for OCSP signing. This is used to set
3185 a root CA as a global signing root: that is any certificate that
3186 chains to that CA is an acceptable OCSP signing certificate.
3189 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3190 extensions from a separate configuration file.
3191 As when reading extensions from the main configuration file,
3192 the '-extensions ...' option may be used for specifying the
3194 [Massimiliano Pala <madwolf@comune.modena.it>]
3196 *) New OCSP utility. Allows OCSP requests to be generated or
3197 read. The request can be sent to a responder and the output
3198 parsed, outputed or printed in text form. Not complete yet:
3199 still needs to check the OCSP response validity.
3202 *) New subcommands for 'openssl ca':
3203 'openssl ca -status <serial>' prints the status of the cert with
3204 the given serial number (according to the index file).
3205 'openssl ca -updatedb' updates the expiry status of certificates
3207 [Massimiliano Pala <madwolf@comune.modena.it>]
3209 *) New '-newreq-nodes' command option to CA.pl. This is like
3210 '-newreq', but calls 'openssl req' with the '-nodes' option
3211 so that the resulting key is not encrypted.
3212 [Damien Miller <djm@mindrot.org>]
3214 *) New configuration for the GNU Hurd.
3215 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3217 *) Initial code to implement OCSP basic response verify. This
3218 is currently incomplete. Currently just finds the signer's
3219 certificate and verifies the signature on the response.
3222 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3223 value of OPENSSLDIR. This is available via the new '-d' option
3224 to 'openssl version', and is also included in 'openssl version -a'.
3227 *) Allowing defining memory allocation callbacks that will be given
3228 file name and line number information in additional arguments
3229 (a const char* and an int). The basic functionality remains, as
3230 well as the original possibility to just replace malloc(),
3231 realloc() and free() by functions that do not know about these
3232 additional arguments. To register and find out the current
3233 settings for extended allocation functions, the following
3234 functions are provided:
3236 CRYPTO_set_mem_ex_functions
3237 CRYPTO_set_locked_mem_ex_functions
3238 CRYPTO_get_mem_ex_functions
3239 CRYPTO_get_locked_mem_ex_functions
3241 These work the same way as CRYPTO_set_mem_functions and friends.
3242 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3243 extended allocation function is enabled.
3244 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3245 a conventional allocation function is enabled.
3246 [Richard Levitte, Bodo Moeller]
3248 *) Finish off removing the remaining LHASH function pointer casts.
3249 There should no longer be any prototype-casting required when using
3250 the LHASH abstraction, and any casts that remain are "bugs". See
3251 the callback types and macros at the head of lhash.h for details
3252 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3255 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3256 If /dev/[u]random devices are not available or do not return enough
3257 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3259 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3260 /etc/entropy will be queried once each in this sequence, quering stops
3261 when enough entropy was collected without querying more sockets.
3264 *) Change the Unix RAND_poll() variant to be able to poll several
3265 random devices, as specified by DEVRANDOM, until a sufficient amount
3266 of data has been collected. We spend at most 10 ms on each file
3267 (select timeout) and read in non-blocking mode. DEVRANDOM now
3268 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3269 (previously it was just the string "/dev/urandom"), so on typical
3270 platforms the 10 ms delay will never occur.
3271 Also separate out the Unix variant to its own file, rand_unix.c.
3272 For VMS, there's a currently-empty rand_vms.c.
3275 *) Move OCSP client related routines to ocsp_cl.c. These
3276 provide utility functions which an application needing
3277 to issue a request to an OCSP responder and analyse the
3278 response will typically need: as opposed to those which an
3279 OCSP responder itself would need which will be added later.
3281 OCSP_request_sign() signs an OCSP request with an API similar
3282 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3283 response. OCSP_response_get1_basic() extracts basic response
3284 from response. OCSP_resp_find_status(): finds and extracts status
3285 information from an OCSP_CERTID structure (which will be created
3286 when the request structure is built). These are built from lower
3287 level functions which work on OCSP_SINGLERESP structures but
3288 wont normally be used unless the application wishes to examine
3289 extensions in the OCSP response for example.
3291 Replace nonce routines with a pair of functions.
3292 OCSP_request_add1_nonce() adds a nonce value and optionally
3293 generates a random value. OCSP_check_nonce() checks the
3294 validity of the nonce in an OCSP response.
3297 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3298 This doesn't copy the supplied OCSP_CERTID and avoids the
3299 need to free up the newly created id. Change return type
3300 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3301 This can then be used to add extensions to the request.
3302 Deleted OCSP_request_new(), since most of its functionality
3303 is now in OCSP_REQUEST_new() (and the case insensitive name
3304 clash) apart from the ability to set the request name which
3305 will be added elsewhere.
3308 *) Update OCSP API. Remove obsolete extensions argument from
3309 various functions. Extensions are now handled using the new
3310 OCSP extension code. New simple OCSP HTTP function which
3311 can be used to send requests and parse the response.
3314 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3315 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3316 uses the special reorder version of SET OF to sort the attributes
3317 and reorder them to match the encoded order. This resolves a long
3318 standing problem: a verify on a PKCS7 structure just after signing
3319 it used to fail because the attribute order did not match the
3320 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3321 it uses the received order. This is necessary to tolerate some broken
3322 software that does not order SET OF. This is handled by encoding
3323 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3324 to produce the required SET OF.
3327 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3328 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3329 files to get correct declarations of the ASN.1 item variables.
3332 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3333 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3334 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3335 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3336 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3337 ASN1_ITEM and no wrapper functions.
3340 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3341 replace the old function pointer based I/O routines. Change most of
3342 the *_d2i_bio() and *_d2i_fp() functions to use these.
3345 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3346 lines, recognice more "algorithms" that can be deselected, and make
3347 it complain about algorithm deselection that isn't recognised.
3350 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3351 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3352 to use new functions. Add NO_ASN1_OLD which can be set to remove
3353 some old style ASN1 functions: this can be used to determine if old
3354 code will still work when these eventually go away.
3357 *) New extension functions for OCSP structures, these follow the
3358 same conventions as certificates and CRLs.
3361 *) New function X509V3_add1_i2d(). This automatically encodes and
3362 adds an extension. Its behaviour can be customised with various
3363 flags to append, replace or delete. Various wrappers added for
3364 certifcates and CRLs.
3367 *) Fix to avoid calling the underlying ASN1 print routine when
3368 an extension cannot be parsed. Correct a typo in the
3369 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3372 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3373 entries for variables.
3376 *) Add functionality to apps/openssl.c for detecting locking
3377 problems: As the program is single-threaded, all we have
3378 to do is register a locking callback using an array for
3379 storing which locks are currently held by the program.
3382 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3383 SSL_get_ex_data_X509_STORE_idx(), which is used in
3384 ssl_verify_cert_chain() and thus can be called at any time
3385 during TLS/SSL handshakes so that thread-safety is essential.
3386 Unfortunately, the ex_data design is not at all suited
3387 for multi-threaded use, so it probably should be abolished.
3390 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3391 [Broadcom, tweaked and integrated by Geoff Thorpe]
3393 *) Move common extension printing code to new function
3394 X509V3_print_extensions(). Reorganise OCSP print routines and
3395 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3398 *) New function X509_signature_print() to remove duplication in some
3402 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3403 set (this was treated exactly the same as SET OF previously). This
3404 is used to reorder the STACK representing the structure to match the
3405 encoding. This will be used to get round a problem where a PKCS7
3406 structure which was signed could not be verified because the STACK
3407 order did not reflect the encoded order.
3410 *) Reimplement the OCSP ASN1 module using the new code.
3413 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3414 for its ASN1 operations. The old style function pointers still exist
3415 for now but they will eventually go away.
3418 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3419 completely replaces the old ASN1 functionality with a table driven
3420 encoder and decoder which interprets an ASN1_ITEM structure describing
3421 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3422 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3423 has also been converted to the new form.
3426 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3427 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3428 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3429 for negative moduli.
3432 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3433 of not touching the result's sign bit.
3436 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3440 *) Changed the LHASH code to use prototypes for callbacks, and created
3441 macros to declare and implement thin (optionally static) functions
3442 that provide type-safety and avoid function pointer casting for the
3443 type-specific callbacks.
3446 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3448 [Veers Staats <staatsvr@asc.hpc.mil>,
3449 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3451 *) Reformat the FAQ so the different questions and answers can be divided
3452 in sections depending on the subject.
3455 *) Have the zlib compression code load ZLIB.DLL dynamically under
3459 *) New function BN_mod_sqrt for computing square roots modulo a prime
3460 (using the probabilistic Tonelli-Shanks algorithm unless
3461 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3462 be handled deterministically).
3463 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3465 *) Make BN_mod_inverse faster by explicitly handling small quotients
3466 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3467 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3470 *) New function BN_kronecker.
3473 *) Fix BN_gcd so that it works on negative inputs; the result is
3474 positive unless both parameters are zero.
3475 Previously something reasonably close to an infinite loop was
3476 possible because numbers could be growing instead of shrinking
3477 in the implementation of Euclid's algorithm.
3480 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3481 sign of the number in question.
3483 Fix BN_is_word(a,w) to work correctly for w == 0.
3485 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3486 because its test if the absolute value of 'a' equals 'w'.
3487 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3488 it exists mostly for use in the implementations of BN_is_zero(),
3489 BN_is_one(), and BN_is_word().
3492 *) New function BN_swap.
3495 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3496 the exponentiation functions are more likely to produce reasonable
3497 results on negative inputs.
3500 *) Change BN_mod_mul so that the result is always non-negative.
3501 Previously, it could be negative if one of the factors was negative;
3502 I don't think anyone really wanted that behaviour.
3505 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3506 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3507 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3508 and add new functions:
3517 BN_mod_lshift1_quick
3521 These functions always generate non-negative results.
3523 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3524 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3526 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3527 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3528 be reduced modulo m.
3529 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3532 The following entry accidentily appeared in the CHANGES file
3533 distributed with OpenSSL 0.9.7. The modifications described in
3534 it do *not* apply to OpenSSL 0.9.7.
3536 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3537 was actually never needed) and in BN_mul(). The removal in BN_mul()
3538 required a small change in bn_mul_part_recursive() and the addition
3539 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3540 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3541 bn_sub_words() and bn_add_words() except they take arrays with
3546 *) In 'openssl passwd', verify passwords read from the terminal
3547 unless the '-salt' option is used (which usually means that
3548 verification would just waste user's time since the resulting
3549 hash is going to be compared with some given password hash)
3550 or the new '-noverify' option is used.
3552 This is an incompatible change, but it does not affect
3553 non-interactive use of 'openssl passwd' (passwords on the command
3554 line, '-stdin' option, '-in ...' option) and thus should not
3558 *) Remove all references to RSAref, since there's no more need for it.
3561 *) Make DSO load along a path given through an environment variable
3562 (SHLIB_PATH) with shl_load().
3565 *) Constify the ENGINE code as a result of BIGNUM constification.
3566 Also constify the RSA code and most things related to it. In a
3567 few places, most notable in the depth of the ASN.1 code, ugly
3568 casts back to non-const were required (to be solved at a later
3572 *) Make it so the openssl application has all engines loaded by default.
3575 *) Constify the BIGNUM routines a little more.
3578 *) Add the following functions:
3580 ENGINE_load_cswift()
3582 ENGINE_load_atalla()
3584 ENGINE_load_builtin_engines()
3586 That way, an application can itself choose if external engines that
3587 are built-in in OpenSSL shall ever be used or not. The benefit is
3588 that applications won't have to be linked with libdl or other dso
3589 libraries unless it's really needed.
3591 Changed 'openssl engine' to load all engines on demand.
3592 Changed the engine header files to avoid the duplication of some
3593 declarations (they differed!).
3596 *) 'openssl engine' can now list capabilities.
3599 *) Better error reporting in 'openssl engine'.
3602 *) Never call load_dh_param(NULL) in s_server.
3605 *) Add engine application. It can currently list engines by name and
3606 identity, and test if they are actually available.
3609 *) Improve RPM specification file by forcing symbolic linking and making
3610 sure the installed documentation is also owned by root.root.
3611 [Damien Miller <djm@mindrot.org>]
3613 *) Give the OpenSSL applications more possibilities to make use of
3614 keys (public as well as private) handled by engines.
3617 *) Add OCSP code that comes from CertCo.
3620 *) Add VMS support for the Rijndael code.
3623 *) Added untested support for Nuron crypto accelerator.
3626 *) Add support for external cryptographic devices. This code was
3627 previously distributed separately as the "engine" branch.
3628 [Geoff Thorpe, Richard Levitte]
3630 *) Rework the filename-translation in the DSO code. It is now possible to
3631 have far greater control over how a "name" is turned into a filename
3632 depending on the operating environment and any oddities about the
3633 different shared library filenames on each system.
3636 *) Support threads on FreeBSD-elf in Configure.
3639 *) Fix for SHA1 assembly problem with MASM: it produces
3640 warnings about corrupt line number information when assembling
3641 with debugging information. This is caused by the overlapping
3643 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3646 NCONF_get_number() has no error checking at all. As a replacement,
3647 NCONF_get_number_e() is defined (_e for "error checking") and is
3648 promoted strongly. The old NCONF_get_number is kept around for
3649 binary backward compatibility.
3650 Make it possible for methods to load from something other than a BIO,
3651 by providing a function pointer that is given a name instead of a BIO.
3652 For example, this could be used to load configuration data from an
3656 *) Fix for non blocking accept BIOs. Added new I/O special reason
3657 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3658 with non blocking I/O was not possible because no retry code was
3659 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3663 *) Added the beginnings of Rijndael support.
3666 *) Fix for bug in DirectoryString mask setting. Add support for
3667 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3668 to allow certificate printing to more controllable, additional
3669 'certopt' option to 'x509' to allow new printing options to be
3673 *) Clean old EAY MD5 hack from e_os.h.
3676 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3678 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3679 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3680 [Joe Orton, Steve Henson]
3682 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3684 *) Fix additional bug revealed by the NISCC test suite:
3686 Stop bug triggering large recursion when presented with
3687 certain ASN.1 tags (CVE-2003-0851)
3690 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3692 *) Fix various bugs revealed by running the NISCC test suite:
3694 Stop out of bounds reads in the ASN1 code when presented with
3695 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3697 If verify callback ignores invalid public key errors don't try to check
3698 certificate signature with the NULL public key.
3702 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3703 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3707 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3708 extra data after the compression methods not only for TLS 1.0
3709 but also for SSL 3.0 (as required by the specification).
3710 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3712 *) Change X509_certificate_type() to mark the key as exported/exportable
3713 when it's 512 *bits* long, not 512 bytes.
3716 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3718 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3719 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3720 a protocol version number mismatch like a decryption error
3721 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3724 *) Turn on RSA blinding by default in the default implementation
3725 to avoid a timing attack. Applications that don't want it can call
3726 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3727 They would be ill-advised to do so in most cases.
3728 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3730 *) Change RSA blinding code so that it works when the PRNG is not
3731 seeded (in this case, the secret RSA exponent is abused as
3732 an unpredictable seed -- if it is not unpredictable, there
3733 is no point in blinding anyway). Make RSA blinding thread-safe
3734 by remembering the creator's thread ID in rsa->blinding and
3735 having all other threads use local one-time blinding factors
3736 (this requires more computation than sharing rsa->blinding, but
3737 avoids excessive locking; and if an RSA object is not shared
3738 between threads, blinding will still be very fast).
3741 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3743 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3744 via timing by performing a MAC computation even if incorrrect
3745 block cipher padding has been found. This is a countermeasure
3746 against active attacks where the attacker has to distinguish
3747 between bad padding and a MAC verification error. (CVE-2003-0078)
3749 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3750 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3751 Martin Vuagnoux (EPFL, Ilion)]
3753 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3755 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3756 memory from it's contents. This is done with a counter that will
3757 place alternating values in each byte. This can be used to solve
3758 two issues: 1) the removal of calls to memset() by highly optimizing
3759 compilers, and 2) cleansing with other values than 0, since those can
3760 be read through on certain media, for example a swap space on disk.
3763 *) Bugfix: client side session caching did not work with external caching,
3764 because the session->cipher setting was not restored when reloading
3765 from the external cache. This problem was masked, when
3766 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3767 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3770 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3771 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3772 [Zeev Lieber <zeev-l@yahoo.com>]
3774 *) Undo an undocumented change introduced in 0.9.6e which caused
3775 repeated calls to OpenSSL_add_all_ciphers() and
3776 OpenSSL_add_all_digests() to be ignored, even after calling
3780 *) Change the default configuration reader to deal with last line not
3781 being properly terminated.
3784 *) Change X509_NAME_cmp() so it applies the special rules on handling
3785 DN values that are of type PrintableString, as well as RDNs of type
3786 emailAddress where the value has the type ia5String.
3787 [stefank@valicert.com via Richard Levitte]
3789 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3790 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3791 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3792 the bitwise-OR of the two for use by the majority of applications
3793 wanting this behaviour, and update the docs. The documented
3794 behaviour and actual behaviour were inconsistent and had been
3795 changing anyway, so this is more a bug-fix than a behavioural
3797 [Geoff Thorpe, diagnosed by Nadav Har'El]
3799 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3800 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3803 *) Fix initialization code race conditions in
3804 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3805 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3806 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3807 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3808 ssl2_get_cipher_by_char(),
3809 ssl3_get_cipher_by_char().
3810 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3812 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3813 the cached sessions are flushed, as the remove_cb() might use ex_data
3814 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3815 (see [openssl.org #212]).
3816 [Geoff Thorpe, Lutz Jaenicke]
3818 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3819 length, instead of the encoding length to d2i_ASN1_OBJECT.
3822 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3824 *) [In 0.9.6g-engine release:]
3825 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3826 [Lynn Gazis <lgazis@rainbow.com>]
3828 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3830 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3831 and get fix the header length calculation.
3832 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3833 Alon Kantor <alonk@checkpoint.com> (and others),
3836 *) Use proper error handling instead of 'assertions' in buffer
3837 overflow checks added in 0.9.6e. This prevents DoS (the
3838 assertions could call abort()).
3839 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3841 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3843 *) Add various sanity checks to asn1_get_length() to reject
3844 the ASN1 length bytes if they exceed sizeof(long), will appear
3845 negative or the content length exceeds the length of the
3847 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3849 *) Fix cipher selection routines: ciphers without encryption had no flags
3850 for the cipher strength set and where therefore not handled correctly
3851 by the selection routines (PR #130).
3854 *) Fix EVP_dsa_sha macro.
3858 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3859 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3860 that was added in OpenSSL 0.9.6d.
3862 As the countermeasure turned out to be incompatible with some
3863 broken SSL implementations, the new option is part of SSL_OP_ALL.
3864 SSL_OP_ALL is usually employed when compatibility with weird SSL
3865 implementations is desired (e.g. '-bugs' option to 's_client' and
3866 's_server'), so the new option is automatically set in many
3870 *) Changes in security patch:
3872 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3873 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3874 Air Force Materiel Command, USAF, under agreement number
3877 *) Add various sanity checks to asn1_get_length() to reject
3878 the ASN1 length bytes if they exceed sizeof(long), will appear
3879 negative or the content length exceeds the length of the
3880 supplied buffer. (CVE-2002-0659)
3881 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3883 *) Assertions for various potential buffer overflows, not known to
3885 [Ben Laurie (CHATS)]
3887 *) Various temporary buffers to hold ASCII versions of integers were
3888 too small for 64 bit platforms. (CVE-2002-0655)
3889 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3891 *) Remote buffer overflow in SSL3 protocol - an attacker could
3892 supply an oversized session ID to a client. (CVE-2002-0656)
3893 [Ben Laurie (CHATS)]
3895 *) Remote buffer overflow in SSL2 protocol - an attacker could
3896 supply an oversized client master key. (CVE-2002-0656)
3897 [Ben Laurie (CHATS)]
3899 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3901 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3902 encoded as NULL) with id-dsa-with-sha1.
3903 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3905 *) Check various X509_...() return values in apps/req.c.
3906 [Nils Larsch <nla@trustcenter.de>]
3908 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3909 an end-of-file condition would erronously be flagged, when the CRLF
3910 was just at the end of a processed block. The bug was discovered when
3911 processing data through a buffering memory BIO handing the data to a
3912 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3913 <ptsekov@syntrex.com> and Nedelcho Stanev.
3916 *) Implement a countermeasure against a vulnerability recently found
3917 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3918 before application data chunks to avoid the use of known IVs
3919 with data potentially chosen by the attacker.
3922 *) Fix length checks in ssl3_get_client_hello().
3925 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3926 to prevent ssl3_read_internal() from incorrectly assuming that
3927 ssl3_read_bytes() found application data while handshake
3928 processing was enabled when in fact s->s3->in_read_app_data was
3929 merely automatically cleared during the initial handshake.
3930 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3932 *) Fix object definitions for Private and Enterprise: they were not
3933 recognized in their shortname (=lowercase) representation. Extend
3934 obj_dat.pl to issue an error when using undefined keywords instead
3935 of silently ignoring the problem (Svenning Sorensen
3936 <sss@sss.dnsalias.net>).
3939 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3940 generators, i.e. generators other than 2 and 5. (Previously, the
3941 code did not properly initialise the 'add' and 'rem' values to
3942 BN_generate_prime().)
3944 In the new general case, we do not insist that 'generator' is
3945 actually a primitive root: This requirement is rather pointless;
3946 a generator of the order-q subgroup is just as good, if not
3950 *) Map new X509 verification errors to alerts. Discovered and submitted by
3951 Tom Wu <tom@arcot.com>.
3954 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3955 returning non-zero before the data has been completely received
3956 when using non-blocking I/O.
3957 [Bodo Moeller; problem pointed out by John Hughes]
3959 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3960 [Ben Laurie, Lutz Jaenicke]
3962 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3963 Yoram Zahavi <YoramZ@gilian.com>).
3966 *) Add information about CygWin 1.3 and on, and preserve proper
3967 configuration for the versions before that.
3968 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3970 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3971 check whether we deal with a copy of a session and do not delete from
3972 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3973 <izhar@checkpoint.com>.
3976 *) Do not store session data into the internal session cache, if it
3977 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3978 flag is set). Proposed by Aslam <aslam@funk.com>.
3981 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3985 *) [In 0.9.6d-engine release:]
3986 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3987 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3989 *) Add the configuration target linux-s390x.
3990 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3992 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3993 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3994 variable as an indication that a ClientHello message has been
3995 received. As the flag value will be lost between multiple
3996 invocations of ssl3_accept when using non-blocking I/O, the
3997 function may not be aware that a handshake has actually taken
3998 place, thus preventing a new session from being added to the
4001 To avoid this problem, we now set s->new_session to 2 instead of
4002 using a local variable.
4003 [Lutz Jaenicke, Bodo Moeller]
4005 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4006 if the SSL_R_LENGTH_MISMATCH error is detected.
4007 [Geoff Thorpe, Bodo Moeller]
4009 *) New 'shared_ldflag' column in Configure platform table.
4012 *) Fix EVP_CIPHER_mode macro.
4013 ["Dan S. Camper" <dan@bti.net>]
4015 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4016 type, we must throw them away by setting rr->length to 0.
4017 [D P Chang <dpc@qualys.com>]
4019 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4021 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4022 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4023 worked incorrectly for those cases where range = 10..._2 and
4024 3*range is two bits longer than range.)
4027 *) Only add signing time to PKCS7 structures if it is not already
4031 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4032 OBJ_ld_ce should be OBJ_id_ce.
4033 Also some ip-pda OIDs in crypto/objects/objects.txt were
4034 incorrect (cf. RFC 3039).
4035 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4037 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4038 returns early because it has nothing to do.
4039 [Andy Schneider <andy.schneider@bjss.co.uk>]
4041 *) [In 0.9.6c-engine release:]
4042 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4043 [Andy Schneider <andy.schneider@bjss.co.uk>]
4045 *) [In 0.9.6c-engine release:]
4046 Add support for Cryptographic Appliance's keyserver technology.
4047 (Use engine 'keyclient')
4048 [Cryptographic Appliances and Geoff Thorpe]
4050 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4051 is called via tools/c89.sh because arguments have to be
4052 rearranged (all '-L' options must appear before the first object
4054 [Richard Shapiro <rshapiro@abinitio.com>]
4056 *) [In 0.9.6c-engine release:]
4057 Add support for Broadcom crypto accelerator cards, backported
4059 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4061 *) [In 0.9.6c-engine release:]
4062 Add support for SureWare crypto accelerator cards from
4063 Baltimore Technologies. (Use engine 'sureware')
4064 [Baltimore Technologies and Mark Cox]
4066 *) [In 0.9.6c-engine release:]
4067 Add support for crypto accelerator cards from Accelerated
4068 Encryption Processing, www.aep.ie. (Use engine 'aep')
4069 [AEP Inc. and Mark Cox]
4071 *) Add a configuration entry for gcc on UnixWare.
4072 [Gary Benson <gbenson@redhat.com>]
4074 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4075 messages are stored in a single piece (fixed-length part and
4076 variable-length part combined) and fix various bugs found on the way.
4079 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4080 instead. BIO_gethostbyname() does not know what timeouts are
4081 appropriate, so entries would stay in cache even when they have
4083 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4085 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4086 faced with a pathologically small ClientHello fragment that does
4087 not contain client_version: Instead of aborting with an error,
4088 simply choose the highest available protocol version (i.e.,
4089 TLS 1.0 unless it is disabled). In practice, ClientHello
4090 messages are never sent like this, but this change gives us
4091 strictly correct behaviour at least for TLS.
4094 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4095 never resets s->method to s->ctx->method when called from within
4096 one of the SSL handshake functions.
4097 [Bodo Moeller; problem pointed out by Niko Baric]
4099 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4100 (sent using the client's version number) if client_version is
4101 smaller than the protocol version in use. Also change
4102 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4103 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4104 the client will at least see that alert.
4107 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4111 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4112 client receives HelloRequest while in a handshake.
4113 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4115 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4116 should end in 'break', not 'goto end' which circuments various
4117 cleanups done in state SSL_ST_OK. But session related stuff
4118 must be disabled for SSL_ST_OK in the case that we just sent a
4121 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4122 before just sending a HelloRequest.
4123 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4125 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4126 reveal whether illegal block cipher padding was found or a MAC
4127 verification error occured. (Neither SSLerr() codes nor alerts
4128 are directly visible to potential attackers, but the information
4129 may leak via logfiles.)
4131 Similar changes are not required for the SSL 2.0 implementation
4132 because the number of padding bytes is sent in clear for SSL 2.0,
4133 and the extra bytes are just ignored. However ssl/s2_pkt.c
4134 failed to verify that the purported number of padding bytes is in
4138 *) Add OpenUNIX-8 support including shared libraries
4139 (Boyd Lynn Gerber <gerberb@zenez.com>).
4142 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4143 'wristwatch attack' using huge encoding parameters (cf.
4144 James H. Manger's CRYPTO 2001 paper). Note that the
4145 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4146 encoding parameters and hence was not vulnerable.
4149 *) BN_sqr() bug fix.
4150 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4152 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4153 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4154 followed by modular reduction.
4155 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4157 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4158 equivalent based on BN_pseudo_rand() instead of BN_rand().
4161 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4162 This function was broken, as the check for a new client hello message
4163 to handle SGC did not allow these large messages.
4164 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4167 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4170 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4171 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4174 *) Rework the configuration and shared library support for Tru64 Unix.
4175 The configuration part makes use of modern compiler features and
4176 still retains old compiler behavior for those that run older versions
4177 of the OS. The shared library support part includes a variant that
4178 uses the RPATH feature, and is available through the special
4179 configuration target "alpha-cc-rpath", which will never be selected
4181 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4183 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4184 with the same message size as in ssl3_get_certificate_request().
4185 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4186 messages might inadvertently be reject as too long.
4187 [Petr Lampa <lampa@fee.vutbr.cz>]
4189 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4192 *) Modified SSL library such that the verify_callback that has been set
4193 specificly for an SSL object with SSL_set_verify() is actually being
4194 used. Before the change, a verify_callback set with this function was
4195 ignored and the verify_callback() set in the SSL_CTX at the time of
4196 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4197 to allow the necessary settings.
4200 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4201 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4202 done automatically (in contradiction to the requirements of the C
4203 standard). This made problems when used from OpenSSH.
4206 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4207 dh->length and always used
4209 BN_rand_range(priv_key, dh->p).
4211 BN_rand_range() is not necessary for Diffie-Hellman, and this
4212 specific range makes Diffie-Hellman unnecessarily inefficient if
4213 dh->length (recommended exponent length) is much smaller than the
4214 length of dh->p. We could use BN_rand_range() if the order of
4215 the subgroup was stored in the DH structure, but we only have
4220 BN_rand(priv_key, l, ...)
4222 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4228 RSA_eay_public_encrypt
4229 RSA_eay_private_decrypt
4230 RSA_eay_private_encrypt (signing)
4231 RSA_eay_public_decrypt (signature verification)
4233 (default implementations for RSA_public_encrypt,
4234 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4235 always reject numbers >= n.
4238 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4239 to synchronize access to 'locking_thread'. This is necessary on
4240 systems where access to 'locking_thread' (an 'unsigned long'
4241 variable) is not atomic.
4244 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4245 *before* setting the 'crypto_lock_rand' flag. The previous code had
4246 a race condition if 0 is a valid thread ID.
4247 [Travis Vitek <vitek@roguewave.com>]
4249 *) Add support for shared libraries under Irix.
4250 [Albert Chin-A-Young <china@thewrittenword.com>]
4252 *) Add configuration option to build on Linux on both big-endian and
4254 [Ralf Baechle <ralf@uni-koblenz.de>]
4256 *) Add the possibility to create shared libraries on HP-UX.
4259 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4261 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4262 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4263 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4264 PRNG state recovery was possible based on the output of
4265 one PRNG request appropriately sized to gain knowledge on
4266 'md' followed by enough consecutive 1-byte PRNG requests
4267 to traverse all of 'state'.
4269 1. When updating 'md_local' (the current thread's copy of 'md')
4270 during PRNG output generation, hash all of the previous
4271 'md_local' value, not just the half used for PRNG output.
4273 2. Make the number of bytes from 'state' included into the hash
4274 independent from the number of PRNG bytes requested.
4276 The first measure alone would be sufficient to avoid
4277 Markku-Juhani's attack. (Actually it had never occurred
4278 to me that the half of 'md_local' used for chaining was the
4279 half from which PRNG output bytes were taken -- I had always
4280 assumed that the secret half would be used.) The second
4281 measure makes sure that additional data from 'state' is never
4282 mixed into 'md_local' in small portions; this heuristically
4283 further strengthens the PRNG.
4286 *) Fix crypto/bn/asm/mips3.s.
4289 *) When only the key is given to "enc", the IV is undefined. Print out
4290 an error message in this case.
4293 *) Handle special case when X509_NAME is empty in X509 printing routines.
4296 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4297 positive and less than q.
4300 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4301 used: it isn't thread safe and the add_lock_callback should handle
4303 [Paul Rose <Paul.Rose@bridge.com>]
4305 *) Verify that incoming data obeys the block size in
4306 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4310 [Ulf Möller, Bodo Möller]
4312 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4313 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4314 when fixing the server behaviour for backwards-compatible 'client
4315 hello' messages. (Note that the attack is impractical against
4316 SSL 3.0 and TLS 1.0 anyway because length and version checking
4317 means that the probability of guessing a valid ciphertext is
4318 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4321 Before 0.9.5, the countermeasure (hide the error by generating a
4322 random 'decryption result') did not work properly because
4323 ERR_clear_error() was missing, meaning that SSL_get_error() would
4324 detect the supposedly ignored error.
4326 Both problems are now fixed.
4329 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4330 (previously it was 1024).
4333 *) Fix for compatibility mode trust settings: ignore trust settings
4334 unless some valid trust or reject settings are present.
4337 *) Fix for blowfish EVP: its a variable length cipher.
4340 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4341 parameters in DSA public key structures and return an error in the
4342 DSA routines if parameters are absent.
4345 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4346 in the current directory if neither $RANDFILE nor $HOME was set.
4347 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4348 caused some confusion to Windows users who haven't defined $HOME.
4349 Thus RAND_file_name() is changed again: e_os.h can define a
4350 DEFAULT_HOME, which will be used if $HOME is not set.
4351 For Windows, we use "C:"; on other platforms, we still require
4352 environment variables.
4354 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4355 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4356 having multiple threads call RAND_poll() concurrently.
4359 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4360 combination of a flag and a thread ID variable.
4361 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4362 flag), *other* threads can enter ssleay_add_bytes without obeying
4363 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4364 that they do not hold after the first thread unsets add_do_not_lock).
4367 *) Change bctest again: '-x' expressions are not available in all
4371 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4373 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4374 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4376 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4377 the default extension for executables, if any. Also, make the perl
4378 scripts that use symlink() to test if it really exists and use "cp"
4379 if it doesn't. All this made OpenSSL compilable and installable in
4383 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4384 If SEQUENCE is length is indefinite just set c->slen to the total
4385 amount of data available.
4386 [Steve Henson, reported by shige@FreeBSD.org]
4387 [This change does not apply to 0.9.7.]
4389 *) Change bctest to avoid here-documents inside command substitution
4390 (workaround for FreeBSD /bin/sh bug).
4391 For compatibility with Ultrix, avoid shell functions (introduced
4392 in the bctest version that searches along $PATH).
4395 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4396 with des_encrypt() defined on some operating systems, like Solaris
4400 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4401 On the Importance of Eliminating Errors in Cryptographic
4402 Computations, J. Cryptology 14 (2001) 2, 101-119,
4403 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4406 *) MIPS assembler BIGNUM division bug fix.
4409 *) Disabled incorrect Alpha assembler code.
4412 *) Fix PKCS#7 decode routines so they correctly update the length
4413 after reading an EOC for the EXPLICIT tag.
4415 [This change does not apply to 0.9.7.]
4417 *) Fix bug in PKCS#12 key generation routines. This was triggered
4418 if a 3DES key was generated with a 0 initial byte. Include
4419 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4420 (but broken) behaviour.
4423 *) Enhance bctest to search for a working bc along $PATH and print
4425 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4427 *) Fix memory leaks in err.c: free err_data string if necessary;
4428 don't write to the wrong index in ERR_set_error_data.
4431 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4435 *) Replace rdtsc with _emit statements for VC++ version 5.
4436 [Jeremy Cooper <jeremy@baymoo.org>]
4438 *) Make it possible to reuse SSLv2 sessions.
4441 *) In copy_email() check for >= 0 as a return value for
4442 X509_NAME_get_index_by_NID() since 0 is a valid index.
4443 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4445 *) Avoid coredump with unsupported or invalid public keys by checking if
4446 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4447 PKCS7_verify() fails with non detached data.
4450 *) Don't use getenv in library functions when run as setuid/setgid.
4451 New function OPENSSL_issetugid().
4454 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4455 due to incorrect handling of multi-threading:
4457 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4459 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4461 3. Count how many times MemCheck_off() has been called so that
4462 nested use can be treated correctly. This also avoids
4463 inband-signalling in the previous code (which relied on the
4464 assumption that thread ID 0 is impossible).
4467 *) Add "-rand" option also to s_client and s_server.
4470 *) Fix CPU detection on Irix 6.x.
4471 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4472 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4474 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4477 [This change does not apply to 0.9.7.]
4479 *) Use the cached encoding of an X509_NAME structure rather than
4480 copying it. This is apparently the reason for the libsafe "errors"
4481 but the code is actually correct.
4484 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4485 Bleichenbacher's DSA attack.
4486 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4487 to be set and top=0 forces the highest bit to be set; top=-1 is new
4488 and leaves the highest bit random.
4489 [Ulf Moeller, Bodo Moeller]
4491 *) In the NCONF_...-based implementations for CONF_... queries
4492 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4493 a temporary CONF structure with the data component set to NULL
4494 (which gives segmentation faults in lh_retrieve).
4495 Instead, use NULL for the CONF pointer in CONF_get_string and
4496 CONF_get_number (which may use environment variables) and directly
4497 return NULL from CONF_get_section.
4500 *) Fix potential buffer overrun for EBCDIC.
4503 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4504 keyUsage if basicConstraints absent for a CA.
4507 *) Make SMIME_write_PKCS7() write mail header values with a format that
4508 is more generally accepted (no spaces before the semicolon), since
4509 some programs can't parse those values properly otherwise. Also make
4510 sure BIO's that break lines after each write do not create invalid
4514 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4515 macros previously used would not encode an empty SEQUENCE OF
4516 and break the signature.
4518 [This change does not apply to 0.9.7.]
4520 *) Zero the premaster secret after deriving the master secret in
4524 *) Add some EVP_add_digest_alias registrations (as found in
4525 OpenSSL_add_all_digests()) to SSL_library_init()
4526 aka OpenSSL_add_ssl_algorithms(). This provides improved
4527 compatibility with peers using X.509 certificates
4528 with unconventional AlgorithmIdentifier OIDs.
4531 *) Fix for Irix with NO_ASM.
4532 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4534 *) ./config script fixes.
4535 [Ulf Moeller, Richard Levitte]
4537 *) Fix 'openssl passwd -1'.
4540 *) Change PKCS12_key_gen_asc() so it can cope with non null
4541 terminated strings whose length is passed in the passlen
4542 parameter, for example from PEM callbacks. This was done
4543 by adding an extra length parameter to asc2uni().
4544 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4546 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4547 call failed, free the DSA structure.
4550 *) Fix to uni2asc() to cope with zero length Unicode strings.
4551 These are present in some PKCS#12 files.
4554 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4555 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4556 when writing a 32767 byte record.
4557 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4559 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4560 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4562 (RSA objects have a reference count access to which is protected
4563 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4564 so they are meant to be shared between threads.)
4565 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4566 "Reddie, Steven" <Steven.Reddie@ca.com>]
4568 *) Fix a deadlock in CRYPTO_mem_leaks().
4571 *) Use better test patterns in bntest.
4574 *) rand_win.c fix for Borland C.
4577 *) BN_rshift bugfix for n == 0.
4580 *) Add a 'bctest' script that checks for some known 'bc' bugs
4581 so that 'make test' does not abort just because 'bc' is broken.
4584 *) Store verify_result within SSL_SESSION also for client side to
4585 avoid potential security hole. (Re-used sessions on the client side
4586 always resulted in verify_result==X509_V_OK, not using the original
4587 result of the server certificate verification.)
4590 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4591 SSL3_RT_APPLICATION_DATA, return 0.
4592 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4596 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4597 releases, have been re-implemented by renaming the previous
4598 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4599 and ssl3_read_internal, respectively, and adding 'peek' parameters
4600 to them. The new ssl[23]_{read,peek} functions are calls to
4601 ssl[23]_read_internal with the 'peek' flag set appropriately.
4602 A 'peek' parameter has also been added to ssl3_read_bytes, which
4603 does the actual work for ssl3_read_internal.
4606 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4607 the method-specific "init()" handler. Also clean up ex_data after
4608 calling the method-specific "finish()" handler. Previously, this was
4609 happening the other way round.
4612 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4613 The previous value, 12, was not always sufficient for BN_mod_exp().
4616 *) Make sure that shared libraries get the internal name engine with
4617 the full version number and not just 0. This should mark the
4618 shared libraries as not backward compatible. Of course, this should
4619 be changed again when we can guarantee backward binary compatibility.
4622 *) Fix typo in get_cert_by_subject() in by_dir.c
4623 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4625 *) Rework the system to generate shared libraries:
4627 - Make note of the expected extension for the shared libraries and
4628 if there is a need for symbolic links from for example libcrypto.so.0
4629 to libcrypto.so.0.9.7. There is extended info in Configure for
4632 - Make as few rebuilds of the shared libraries as possible.
4634 - Still avoid linking the OpenSSL programs with the shared libraries.
4636 - When installing, install the shared libraries separately from the
4640 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4642 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4643 and not in SSL_clear because the latter is also used by the
4644 accept/connect functions; previously, the settings made by
4645 SSL_set_read_ahead would be lost during the handshake.
4646 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4648 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4649 Previously, it would create entries for disableed algorithms no
4653 *) Added several new manual pages for SSL_* function.
4656 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4658 *) In ssl23_get_client_hello, generate an error message when faced
4659 with an initial SSL 3.0/TLS record that is too small to contain the
4660 first two bytes of the ClientHello message, i.e. client_version.
4661 (Note that this is a pathologic case that probably has never happened
4662 in real life.) The previous approach was to use the version number
4663 from the record header as a substitute; but our protocol choice
4664 should not depend on that one because it is not authenticated
4665 by the Finished messages.
4668 *) More robust randomness gathering functions for Windows.
4669 [Jeffrey Altman <jaltman@columbia.edu>]
4671 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4672 not set then we don't setup the error code for issuer check errors
4673 to avoid possibly overwriting other errors which the callback does
4674 handle. If an application does set the flag then we assume it knows
4675 what it is doing and can handle the new informational codes
4679 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4680 a general "ANY" type, as such it should be able to decode anything
4681 including tagged types. However it didn't check the class so it would
4682 wrongly interpret tagged types in the same way as their universal
4683 counterpart and unknown types were just rejected. Changed so that the
4684 tagged and unknown types are handled in the same way as a SEQUENCE:
4685 that is the encoding is stored intact. There is also a new type
4686 "V_ASN1_OTHER" which is used when the class is not universal, in this
4687 case we have no idea what the actual type is so we just lump them all
4691 *) On VMS, stdout may very well lead to a file that is written to
4692 in a record-oriented fashion. That means that every write() will
4693 write a separate record, which will be read separately by the
4694 programs trying to read from it. This can be very confusing.
4696 The solution is to put a BIO filter in the way that will buffer
4697 text until a linefeed is reached, and then write everything a
4698 line at a time, so every record written will be an actual line,
4699 not chunks of lines and not (usually doesn't happen, but I've
4700 seen it once) several lines in one record. BIO_f_linebuffer() is
4703 Currently, it's a VMS-only method, because that's where it has
4704 been tested well enough.
4707 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4708 it can return incorrect results.
4709 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4710 but it was in 0.9.6-beta[12].)
4713 *) Disable the check for content being present when verifying detached
4714 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4715 include zero length content when signing messages.
4718 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4719 BIO_ctrl (for BIO pairs).
4722 *) Add DSO method for VMS.
4725 *) Bug fix: Montgomery multiplication could produce results with the
4729 *) Add RPM specification openssl.spec and modify it to build three
4730 packages. The default package contains applications, application
4731 documentation and run-time libraries. The devel package contains
4732 include files, static libraries and function documentation. The
4733 doc package contains the contents of the doc directory. The original
4734 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4737 *) Add a large number of documentation files for many SSL routines.
4738 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4740 *) Add a configuration entry for Sony News 4.
4741 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4743 *) Don't set the two most significant bits to one when generating a
4744 random number < q in the DSA library.
4747 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4748 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4749 the underlying transport is blocking) if a handshake took place.
4750 (The default behaviour is needed by applications such as s_client
4751 and s_server that use select() to determine when to use SSL_read;
4752 but for applications that know in advance when to expect data, it
4753 just makes things more complicated.)
4756 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4760 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4761 work better on such systems.
4762 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4764 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4765 Update PKCS12_parse() so it copies the friendlyName and the
4766 keyid to the certificates aux info.
4769 *) Fix bug in PKCS7_verify() which caused an infinite loop
4770 if there was more than one signature.
4771 [Sven Uszpelkat <su@celocom.de>]
4773 *) Major change in util/mkdef.pl to include extra information
4774 about each symbol, as well as presentig variables as well
4775 as functions. This change means that there's n more need
4776 to rebuild the .num files when some algorithms are excluded.
4779 *) Allow the verify time to be set by an application,
4780 rather than always using the current time.
4783 *) Phase 2 verify code reorganisation. The certificate
4784 verify code now looks up an issuer certificate by a
4785 number of criteria: subject name, authority key id
4786 and key usage. It also verifies self signed certificates
4787 by the same criteria. The main comparison function is
4788 X509_check_issued() which performs these checks.
4790 Lot of changes were necessary in order to support this
4791 without completely rewriting the lookup code.
4793 Authority and subject key identifier are now cached.
4795 The LHASH 'certs' is X509_STORE has now been replaced
4796 by a STACK_OF(X509_OBJECT). This is mainly because an
4797 LHASH can't store or retrieve multiple objects with
4798 the same hash value.
4800 As a result various functions (which were all internal
4801 use only) have changed to handle the new X509_STORE
4802 structure. This will break anything that messed round
4803 with X509_STORE internally.
4805 The functions X509_STORE_add_cert() now checks for an
4806 exact match, rather than just subject name.
4808 The X509_STORE API doesn't directly support the retrieval
4809 of multiple certificates matching a given criteria, however
4810 this can be worked round by performing a lookup first
4811 (which will fill the cache with candidate certificates)
4812 and then examining the cache for matches. This is probably
4813 the best we can do without throwing out X509_LOOKUP
4814 entirely (maybe later...).
4816 The X509_VERIFY_CTX structure has been enhanced considerably.
4818 All certificate lookup operations now go via a get_issuer()
4819 callback. Although this currently uses an X509_STORE it
4820 can be replaced by custom lookups. This is a simple way
4821 to bypass the X509_STORE hackery necessary to make this
4822 work and makes it possible to use more efficient techniques
4823 in future. A very simple version which uses a simple
4824 STACK for its trusted certificate store is also provided
4825 using X509_STORE_CTX_trusted_stack().
4827 The verify_cb() and verify() callbacks now have equivalents
4828 in the X509_STORE_CTX structure.
4830 X509_STORE_CTX also has a 'flags' field which can be used
4831 to customise the verify behaviour.
4834 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4835 excludes S/MIME capabilities.
4838 *) When a certificate request is read in keep a copy of the
4839 original encoding of the signed data and use it when outputing
4840 again. Signatures then use the original encoding rather than
4841 a decoded, encoded version which may cause problems if the
4842 request is improperly encoded.
4845 *) For consistency with other BIO_puts implementations, call
4846 buffer_write(b, ...) directly in buffer_puts instead of calling
4849 In BIO_puts, increment b->num_write as in BIO_write.
4850 [Peter.Sylvester@EdelWeb.fr]
4852 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4853 BN_zero, we may not return a BIGNUM with an array consisting of
4857 *) Avoid calling abort() from within the library when problems are
4858 detected, except if preprocessor symbols have been defined
4859 (such as REF_CHECK, BN_DEBUG etc.).
4862 *) New openssl application 'rsautl'. This utility can be
4863 used for low level RSA operations. DER public key
4864 BIO/fp routines also added.
4867 *) New Configure entry and patches for compiling on QNX 4.
4868 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4870 *) A demo state-machine implementation was sponsored by
4871 Nuron (http://www.nuron.com/) and is now available in
4872 demos/state_machine.
4875 *) New options added to the 'dgst' utility for signature
4876 generation and verification.
4879 *) Unrecognized PKCS#7 content types are now handled via a
4880 catch all ASN1_TYPE structure. This allows unsupported
4881 types to be stored as a "blob" and an application can
4882 encode and decode it manually.
4885 *) Fix various signed/unsigned issues to make a_strex.c
4887 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4889 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4890 length if passed a buffer. ASN1_INTEGER_to_BN failed
4891 if passed a NULL BN and its argument was negative.
4892 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4894 *) Modification to PKCS#7 encoding routines to output definite
4895 length encoding. Since currently the whole structures are in
4896 memory there's not real point in using indefinite length
4897 constructed encoding. However if OpenSSL is compiled with
4898 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4901 *) Added BIO_vprintf() and BIO_vsnprintf().
4904 *) Added more prefixes to parse for in the the strings written
4905 through a logging bio, to cover all the levels that are available
4906 through syslog. The prefixes are now:
4908 PANIC, EMERG, EMR => LOG_EMERG
4909 ALERT, ALR => LOG_ALERT
4910 CRIT, CRI => LOG_CRIT
4911 ERROR, ERR => LOG_ERR
4912 WARNING, WARN, WAR => LOG_WARNING
4913 NOTICE, NOTE, NOT => LOG_NOTICE
4914 INFO, INF => LOG_INFO
4915 DEBUG, DBG => LOG_DEBUG
4917 and as before, if none of those prefixes are present at the
4918 beginning of the string, LOG_ERR is chosen.
4920 On Win32, the LOG_* levels are mapped according to this:
4922 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4923 LOG_WARNING => EVENTLOG_WARNING_TYPE
4924 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4928 *) Made it possible to reconfigure with just the configuration
4929 argument "reconf" or "reconfigure". The command line arguments
4930 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4931 and are retrieved from there when reconfiguring.
4935 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4937 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4940 *) The obj_dat.pl script was messing up the sorting of object
4941 names. The reason was that it compared the quoted version
4942 of strings as a result "OCSP" > "OCSP Signing" because
4943 " > SPACE. Changed script to store unquoted versions of
4944 names and add quotes on output. It was also omitting some
4945 names from the lookup table if they were given a default
4946 value (that is if SN is missing it is given the same
4947 value as LN and vice versa), these are now added on the
4948 grounds that if an object has a name we should be able to
4949 look it up. Finally added warning output when duplicate
4950 short or long names are found.
4953 *) Changes needed for Tandem NSK.
4954 [Scott Uroff <scott@xypro.com>]
4956 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4957 RSA_padding_check_SSLv23(), special padding was never detected
4958 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4959 version rollback attacks was not effective.
4961 In s23_clnt.c, don't use special rollback-attack detection padding
4962 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4963 client; similarly, in s23_srvr.c, don't do the rollback check if
4964 SSL 2.0 is the only protocol enabled in the server.
4967 *) Make it possible to get hexdumps of unprintable data with 'openssl
4968 asn1parse'. By implication, the functions ASN1_parse_dump() and
4969 BIO_dump_indent() are added.
4972 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4973 these print out strings and name structures based on various
4974 flags including RFC2253 support and proper handling of
4975 multibyte characters. Added options to the 'x509' utility
4976 to allow the various flags to be set.
4979 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4980 Also change the functions X509_cmp_current_time() and
4981 X509_gmtime_adj() work with an ASN1_TIME structure,
4982 this will enable certificates using GeneralizedTime in validity
4983 dates to be checked.
4986 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4987 negative public key encodings) on by default,
4988 NO_NEG_PUBKEY_BUG can be set to disable it.
4991 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4992 content octets. An i2c_ASN1_OBJECT is unnecessary because
4993 the encoding can be trivially obtained from the structure.
4996 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4997 not read locks (CRYPTO_r_[un]lock).
5000 *) A first attempt at creating official support for shared
5001 libraries through configuration. I've kept it so the
5002 default is static libraries only, and the OpenSSL programs
5003 are always statically linked for now, but there are
5004 preparations for dynamic linking in place.
5005 This has been tested on Linux and Tru64.
5008 *) Randomness polling function for Win9x, as described in:
5009 Peter Gutmann, Software Generation of Practically Strong
5013 *) Fix so PRNG is seeded in req if using an already existing
5017 *) New options to smime application. -inform and -outform
5018 allow alternative formats for the S/MIME message including
5019 PEM and DER. The -content option allows the content to be
5020 specified separately. This should allow things like Netscape
5021 form signing output easier to verify.
5024 *) Fix the ASN1 encoding of tags using the 'long form'.
5027 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5028 STRING types. These convert content octets to and from the
5029 underlying type. The actual tag and length octets are
5030 already assumed to have been read in and checked. These
5031 are needed because all other string types have virtually
5032 identical handling apart from the tag. By having versions
5033 of the ASN1 functions that just operate on content octets
5034 IMPLICIT tagging can be handled properly. It also allows
5035 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5036 and ASN1_INTEGER are identical apart from the tag.
5039 *) Change the handling of OID objects as follows:
5041 - New object identifiers are inserted in objects.txt, following
5042 the syntax given in objects.README.
5043 - objects.pl is used to process obj_mac.num and create a new
5045 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5048 This is currently kind of a hack, and the perl code in objects.pl
5049 isn't very elegant, but it works as I intended. The simplest way
5050 to check that it worked correctly is to look in obj_dat.h and
5051 check the array nid_objs and make sure the objects haven't moved
5052 around (this is important!). Additions are OK, as well as
5053 consistent name changes.
5056 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5059 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5060 The given file adds to whatever has already been seeded into the
5061 random pool through the RANDFILE configuration file option or
5062 environment variable, or the default random state file.
5065 *) mkstack.pl now sorts each macro group into lexical order.
5066 Previously the output order depended on the order the files
5067 appeared in the directory, resulting in needless rewriting
5071 *) Patches to make OpenSSL compile under Win32 again. Mostly
5072 work arounds for the VC++ problem that it treats func() as
5073 func(void). Also stripped out the parts of mkdef.pl that
5074 added extra typesafe functions: these no longer exist.
5077 *) Reorganisation of the stack code. The macros are now all
5078 collected in safestack.h . Each macro is defined in terms of
5079 a "stack macro" of the form SKM_<name>(type, a, b). The
5080 DEBUG_SAFESTACK is now handled in terms of function casts,
5081 this has the advantage of retaining type safety without the
5082 use of additional functions. If DEBUG_SAFESTACK is not defined
5083 then the non typesafe macros are used instead. Also modified the
5084 mkstack.pl script to handle the new form. Needs testing to see
5085 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5086 the default if no major problems. Similar behaviour for ASN1_SET_OF
5087 and PKCS12_STACK_OF.
5090 *) When some versions of IIS use the 'NET' form of private key the
5091 key derivation algorithm is different. Normally MD5(password) is
5092 used as a 128 bit RC4 key. In the modified case
5093 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5094 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5095 as the old Netscape_RSA functions except they have an additional
5096 'sgckey' parameter which uses the modified algorithm. Also added
5097 an -sgckey command line option to the rsa utility. Thanks to
5098 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5099 algorithm to openssl-dev.
5102 *) The evp_local.h macros were using 'c.##kname' which resulted in
5103 invalid expansion on some systems (SCO 5.0.5 for example).
5104 Corrected to 'c.kname'.
5105 [Phillip Porch <root@theporch.com>]
5107 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5108 a STACK of email addresses from a certificate or request, these look
5109 in the subject name and the subject alternative name extensions and
5110 omit any duplicate addresses.
5113 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5114 This makes DSA verification about 2 % faster.
5117 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5118 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5119 plus overhead for 1024 bit moduli).
5120 This makes exponentiations about 0.5 % faster for 1024 bit
5121 exponents (as measured by "openssl speed rsa2048").
5124 *) Rename memory handling macros to avoid conflicts with other
5126 Malloc => OPENSSL_malloc
5127 Malloc_locked => OPENSSL_malloc_locked
5128 Realloc => OPENSSL_realloc
5129 Free => OPENSSL_free
5132 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5133 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5136 *) CygWin32 support.
5137 [John Jarvie <jjarvie@newsguy.com>]
5139 *) The type-safe stack code has been rejigged. It is now only compiled
5140 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5141 by default all type-specific stack functions are "#define"d back to
5142 standard stack functions. This results in more streamlined output
5143 but retains the type-safety checking possibilities of the original
5147 *) The STACK code has been cleaned up, and certain type declarations
5148 that didn't make a lot of sense have been brought in line. This has
5149 also involved a cleanup of sorts in safestack.h to more correctly
5150 map type-safe stack functions onto their plain stack counterparts.
5151 This work has also resulted in a variety of "const"ifications of
5152 lots of the code, especially "_cmp" operations which should normally
5153 be prototyped with "const" parameters anyway.
5156 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5157 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5158 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5159 where all of 'md' is used each time the PRNG is used, but 'state'
5160 is used only indexed by a cyclic counter. As entropy may not be
5161 well distributed from the beginning, 'md' is important as a
5162 chaining variable. However, the output function chains only half
5163 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5164 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5165 in all of 'state' being rewritten, with the new values depending
5166 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5169 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5170 the handshake is continued after ssl_verify_cert_chain();
5171 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5172 can lead to 'unexplainable' connection aborts later.
5173 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5175 *) Major EVP API cipher revision.
5176 Add hooks for extra EVP features. This allows various cipher
5177 parameters to be set in the EVP interface. Support added for variable
5178 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5179 setting of RC2 and RC5 parameters.
5181 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5184 Remove lots of duplicated code from the EVP library. For example *every*
5185 cipher init() function handles the 'iv' in the same way according to the
5186 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5187 for CFB and OFB modes they zero ctx->num.
5189 New functionality allows removal of S/MIME code RC2 hack.
5191 Most of the routines have the same form and so can be declared in terms
5194 By shifting this to the top level EVP_CipherInit() it can be removed from
5195 all individual ciphers. If the cipher wants to handle IVs or keys
5196 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5199 Change lots of functions like EVP_EncryptUpdate() to now return a
5200 value: although software versions of the algorithms cannot fail
5201 any installed hardware versions can.
5204 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5205 this option is set, tolerate broken clients that send the negotiated
5206 protocol version number instead of the requested protocol version
5210 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5211 i.e. non-zero for export ciphersuites, zero otherwise.
5212 Previous versions had this flag inverted, inconsistent with
5213 rsa_tmp_cb (..._TMP_RSA_CB).
5214 [Bodo Moeller; problem reported by Amit Chopra]
5216 *) Add missing DSA library text string. Work around for some IIS
5217 key files with invalid SEQUENCE encoding.
5220 *) Add a document (doc/standards.txt) that list all kinds of standards
5221 and so on that are implemented in OpenSSL.
5224 *) Enhance c_rehash script. Old version would mishandle certificates
5225 with the same subject name hash and wouldn't handle CRLs at all.
5226 Added -fingerprint option to crl utility, to support new c_rehash
5230 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5233 *) Fix for SSL server purpose checking. Server checking was
5234 rejecting certificates which had extended key usage present
5235 but no ssl client purpose.
5236 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5238 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5239 is a little unclear about how a blank password is handled.
5240 Since the password in encoded as a BMPString with terminating
5241 double NULL a zero length password would end up as just the
5242 double NULL. However no password at all is different and is
5243 handled differently in the PKCS#12 key generation code. NS
5244 treats a blank password as zero length. MSIE treats it as no
5245 password on export: but it will try both on import. We now do
5246 the same: PKCS12_parse() tries zero length and no password if
5247 the password is set to "" or NULL (NULL is now a valid password:
5248 it wasn't before) as does the pkcs12 application.
5251 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5252 perror when PEM_read_bio_X509_REQ fails, the error message must
5253 be obtained from the error queue.
5256 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5257 it in ERR_remove_state if appropriate, and change ERR_get_state
5258 accordingly to avoid race conditions (this is necessary because
5259 thread_hash is no longer constant once set).
5262 *) Bugfix for linux-elf makefile.one.
5265 *) RSA_get_default_method() will now cause a default
5266 RSA_METHOD to be chosen if one doesn't exist already.
5267 Previously this was only set during a call to RSA_new()
5268 or RSA_new_method(NULL) meaning it was possible for
5269 RSA_get_default_method() to return NULL.
5272 *) Added native name translation to the existing DSO code
5273 that will convert (if the flag to do so is set) filenames
5274 that are sufficiently small and have no path information
5275 into a canonical native form. Eg. "blah" converted to
5276 "libblah.so" or "blah.dll" etc.
5279 *) New function ERR_error_string_n(e, buf, len) which is like
5280 ERR_error_string(e, buf), but writes at most 'len' bytes
5281 including the 0 terminator. For ERR_error_string_n, 'buf'
5283 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5285 *) CONF library reworked to become more general. A new CONF
5286 configuration file reader "class" is implemented as well as a
5287 new functions (NCONF_*, for "New CONF") to handle it. The now
5288 old CONF_* functions are still there, but are reimplemented to
5289 work in terms of the new functions. Also, a set of functions
5290 to handle the internal storage of the configuration data is
5291 provided to make it easier to write new configuration file
5292 reader "classes" (I can definitely see something reading a
5293 configuration file in XML format, for example), called _CONF_*,
5294 or "the configuration storage API"...
5296 The new configuration file reading functions are:
5298 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5299 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5301 NCONF_default, NCONF_WIN32
5303 NCONF_dump_fp, NCONF_dump_bio
5305 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5306 NCONF_new creates a new CONF object. This works in the same way
5307 as other interfaces in OpenSSL, like the BIO interface.
5308 NCONF_dump_* dump the internal storage of the configuration file,
5309 which is useful for debugging. All other functions take the same
5310 arguments as the old CONF_* functions wth the exception of the
5311 first that must be a `CONF *' instead of a `LHASH *'.
5313 To make it easer to use the new classes with the old CONF_* functions,
5314 the function CONF_set_default_method is provided.
5317 *) Add '-tls1' option to 'openssl ciphers', which was already
5318 mentioned in the documentation but had not been implemented.
5319 (This option is not yet really useful because even the additional
5320 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5323 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5324 OpenSSL-based applications) load shared libraries and bind to
5325 them in a portable way.
5326 [Geoff Thorpe, with contributions from Richard Levitte]
5328 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5330 *) Make sure _lrotl and _lrotr are only used with MSVC.
5332 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5333 (the default implementation of RAND_status).
5335 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5336 to '-clrext' (= clear extensions), as intended and documented.
5337 [Bodo Moeller; inconsistency pointed out by Michael Attili
5340 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5341 was larger than the MD block size.
5342 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5344 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5345 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5346 using the passed key: if the passed key was a private key the result
5347 of X509_print(), for example, would be to print out all the private key
5351 *) des_quad_cksum() byte order bug fix.
5352 [Ulf Möller, using the problem description in krb4-0.9.7, where
5353 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5355 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5357 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5359 *) For easily testing in shell scripts whether some command
5360 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5361 returns with exit code 0 iff no command of the given name is available.
5362 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5363 the output goes to stdout and nothing is printed to stderr.
5364 Additional arguments are always ignored.
5366 Since for each cipher there is a command of the same name,
5367 the 'no-cipher' compilation switches can be tested this way.
5369 ('openssl no-XXX' is not able to detect pseudo-commands such
5370 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5373 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5376 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5377 is set; it will be thrown away anyway because each handshake creates
5379 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5380 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5381 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5382 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5385 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5386 'Q' and 'R' lose their special meanings (quit/renegotiate).
5387 This is part of what -quiet does; unlike -quiet, -ign_eof
5388 does not suppress any output.
5391 *) Add compatibility options to the purpose and trust code. The
5392 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5393 accepts a certificate or CA, this was the previous behaviour,
5394 with all the associated security issues.
5396 X509_TRUST_COMPAT is the old trust behaviour: only and
5397 automatically trust self signed roots in certificate store. A
5398 new trust setting X509_TRUST_DEFAULT is used to specify that
5399 a purpose has no associated trust setting and it should instead
5400 use the value in the default purpose.
5403 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5404 and fix a memory leak.
5407 *) In util/mkerr.pl (which implements 'make errors'), preserve
5408 reason strings from the previous version of the .c file, as
5409 the default to have only downcase letters (and digits) in
5410 automatically generated reasons codes is not always appropriate.
5413 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5414 using strerror. Previously, ERR_reason_error_string() returned
5415 library names as reason strings for SYSerr; but SYSerr is a special
5416 case where small numbers are errno values, not library numbers.
5419 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5420 converts DSA parameters into DH parameters. (When creating parameters,
5421 DSA_generate_parameters is used.)
5424 *) Include 'length' (recommended exponent length) in C code generated
5425 by 'openssl dhparam -C'.
5428 *) The second argument to set_label in perlasm was already being used
5429 so couldn't be used as a "file scope" flag. Moved to third argument
5433 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5434 instead of RAND_bytes for encryption IVs and salts.
5437 *) Include RAND_status() into RAND_METHOD instead of implementing
5438 it only for md_rand.c Otherwise replacing the PRNG by calling
5439 RAND_set_rand_method would be impossible.
5442 *) Don't let DSA_generate_key() enter an infinite loop if the random
5443 number generation fails.
5446 *) New 'rand' application for creating pseudo-random output.
5449 *) Added configuration support for Linux/IA64
5450 [Rolf Haberrecker <rolf@suse.de>]
5452 *) Assembler module support for Mingw32.
5455 *) Shared library support for HPUX (in shlib/).
5456 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5458 *) Shared library support for Solaris gcc.
5459 [Lutz Behnke <behnke@trustcenter.de>]
5461 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5463 *) PKCS7_encrypt() was adding text MIME headers twice because they
5464 were added manually and by SMIME_crlf_copy().
5467 *) In bntest.c don't call BN_rand with zero bits argument.
5468 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5470 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5471 case was implemented. This caused BN_div_recp() to fail occasionally.
5474 *) Add an optional second argument to the set_label() in the perl
5475 assembly language builder. If this argument exists and is set
5476 to 1 it signals that the assembler should use a symbol whose
5477 scope is the entire file, not just the current function. This
5478 is needed with MASM which uses the format label:: for this scope.
5479 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5481 *) Change the ASN1 types so they are typedefs by default. Before
5482 almost all types were #define'd to ASN1_STRING which was causing
5483 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5487 *) Change names of new functions to the new get1/get0 naming
5488 convention: After 'get1', the caller owns a reference count
5489 and has to call ..._free; 'get0' returns a pointer to some
5490 data structure without incrementing reference counters.
5491 (Some of the existing 'get' functions increment a reference
5492 counter, some don't.)
5493 Similarly, 'set1' and 'add1' functions increase reference
5494 counters or duplicate objects.
5497 *) Allow for the possibility of temp RSA key generation failure:
5498 the code used to assume it always worked and crashed on failure.
5501 *) Fix potential buffer overrun problem in BIO_printf().
5502 [Ulf Möller, using public domain code by Patrick Powell; problem
5503 pointed out by David Sacerdote <das33@cornell.edu>]
5505 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5506 RAND_egd() and RAND_status(). In the command line application,
5507 the EGD socket can be specified like a seed file using RANDFILE
5511 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5512 Some CAs (e.g. Verisign) distribute certificates in this form.
5515 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5516 list to exclude them. This means that no special compilation option
5517 is needed to use anonymous DH: it just needs to be included in the
5521 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5522 EVP_MD_type. The old functionality is available in a new macro called
5523 EVP_MD_md(). Change code that uses it and update docs.
5526 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5527 where the 'void *' argument is replaced by a function pointer argument.
5528 Previously 'void *' was abused to point to functions, which works on
5529 many platforms, but is not correct. As these functions are usually
5530 called by macros defined in OpenSSL header files, most source code
5531 should work without changes.
5534 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5535 sections with information on -D... compiler switches used for
5536 compiling the library so that applications can see them. To enable
5537 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5538 must be defined. E.g.,
5539 #define OPENSSL_ALGORITHM_DEFINES
5540 #include <openssl/opensslconf.h>
5541 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5542 [Richard Levitte, Ulf and Bodo Möller]
5544 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5548 *) Change the 'other' type in certificate aux info to a STACK_OF
5549 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5550 the required ASN1 format: arbitrary types determined by an OID.
5553 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5554 argument to 'req'. This is not because the function is newer or
5555 better than others it just uses the work 'NEW' in the certificate
5556 request header lines. Some software needs this.
5559 *) Reorganise password command line arguments: now passwords can be
5560 obtained from various sources. Delete the PEM_cb function and make
5561 it the default behaviour: i.e. if the callback is NULL and the
5562 usrdata argument is not NULL interpret it as a null terminated pass
5563 phrase. If usrdata and the callback are NULL then the pass phrase
5564 is prompted for as usual.
5567 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5568 the support is automatically enabled. The resulting binaries will
5569 autodetect the card and use it if present.
5570 [Ben Laurie and Compaq Inc.]
5572 *) Work around for Netscape hang bug. This sends certificate request
5573 and server done in one record. Since this is perfectly legal in the
5574 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5575 the bugs/SSLv3 entry for more info.
5578 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5581 *) Add -rand argument to smime and pkcs12 applications and read/write
5585 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5588 *) Add command line password options to the remaining applications.
5591 *) Bug fix for BN_div_recp() for numerators with an even number of
5595 *) More tests in bntest.c, and changed test_bn output.
5598 *) ./config recognizes MacOS X now.
5601 *) Bug fix for BN_div() when the first words of num and divsor are
5602 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5605 *) Add support for various broken PKCS#8 formats, and command line
5606 options to produce them.
5609 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5610 get temporary BIGNUMs from a BN_CTX.
5613 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5617 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5618 include a #define from the old name to the new. The original intent
5619 was that statically linked binaries could for example just call
5620 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5621 link with digests. This never worked becayse SSLeay_add_all_digests()
5622 and SSLeay_add_all_ciphers() were in the same source file so calling
5623 one would link with the other. They are now in separate source files.
5626 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5629 *) Use a less unusual form of the Miller-Rabin primality test (it used
5630 a binary algorithm for exponentiation integrated into the Miller-Rabin
5631 loop, our standard modexp algorithms are faster).
5634 *) Support for the EBCDIC character set completed.
5635 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5637 *) Source code cleanups: use const where appropriate, eliminate casts,
5638 use void * instead of char * in lhash.
5641 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5642 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5643 this the server could overwrite ephemeral keys that the client
5647 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5648 using 50 iterations of the Rabin-Miller test.
5650 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5651 iterations of the Rabin-Miller test as required by the appendix
5652 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5653 As BN_is_prime_fasttest includes trial division, DSA parameter
5654 generation becomes much faster.
5656 This implies a change for the callback functions in DSA_is_prime
5657 and DSA_generate_parameters: The callback function is called once
5658 for each positive witness in the Rabin-Miller test, not just
5659 occasionally in the inner loop; and the parameters to the
5660 callback function now provide an iteration count for the outer
5661 loop rather than for the current invocation of the inner loop.
5662 DSA_generate_parameters additionally can call the callback
5663 function with an 'iteration count' of -1, meaning that a
5664 candidate has passed the trial division test (when q is generated
5665 from an application-provided seed, trial division is skipped).
5668 *) New function BN_is_prime_fasttest that optionally does trial
5669 division before starting the Rabin-Miller test and has
5670 an additional BN_CTX * argument (whereas BN_is_prime always
5671 has to allocate at least one BN_CTX).
5672 'callback(1, -1, cb_arg)' is called when a number has passed the
5673 trial division stage.
5676 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5680 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5683 *) New function BN_pseudo_rand().
5686 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5687 bignum version of BN_from_montgomery() with the working code from
5688 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5692 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5693 made it impossible to use the same SSL_SESSION data structure in
5694 SSL2 clients in multiple threads.
5697 *) The return value of RAND_load_file() no longer counts bytes obtained
5698 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5699 to seed the PRNG (previously an explicit byte count was required).
5700 [Ulf Möller, Bodo Möller]
5702 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5703 used (char *) instead of (void *) and had casts all over the place.
5706 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5709 *) Retain source code compatibility for BN_prime_checks macro:
5710 BN_is_prime(..., BN_prime_checks, ...) now uses
5711 BN_prime_checks_for_size to determine the appropriate number of
5712 Rabin-Miller iterations.
5715 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5716 DH_CHECK_P_NOT_SAFE_PRIME.
5717 (Check if this is true? OpenPGP calls them "strong".)
5720 *) Merge the functionality of "dh" and "gendh" programs into a new program
5721 "dhparam". The old programs are retained for now but will handle DH keys
5722 (instead of parameters) in future.
5725 *) Make the ciphers, s_server and s_client programs check the return values
5726 when a new cipher list is set.
5729 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5730 ciphers. Before when the 56bit ciphers were enabled the sorting was
5733 The syntax for the cipher sorting has been extended to support sorting by
5734 cipher-strength (using the strength_bits hard coded in the tables).
5735 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5737 Fix a bug in the cipher-command parser: when supplying a cipher command
5738 string with an "undefined" symbol (neither command nor alphanumeric
5739 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5740 an error is flagged.
5742 Due to the strength-sorting extension, the code of the
5743 ssl_create_cipher_list() function was completely rearranged. I hope that
5744 the readability was also increased :-)
5745 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5747 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5748 for the first serial number and places 2 in the serial number file. This
5749 avoids problems when the root CA is created with serial number zero and
5750 the first user certificate has the same issuer name and serial number
5754 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5755 the new code. Add documentation for this stuff.
5758 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5759 X509_*() to X509at_*() on the grounds that they don't handle X509
5760 structures and behave in an analagous way to the X509v3 functions:
5761 they shouldn't be called directly but wrapper functions should be used
5764 So we also now have some wrapper functions that call the X509at functions
5765 when passed certificate requests. (TO DO: similar things can be done with
5766 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5767 things. Some of these need some d2i or i2d and print functionality
5768 because they handle more complex structures.)
5771 *) Add missing #ifndefs that caused missing symbols when building libssl
5772 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5773 NO_RSA in ssl/s2*.c.
5774 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5776 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5777 has a return value which indicates the quality of the random data
5778 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5779 error queue. New function RAND_pseudo_bytes() generates output that is
5780 guaranteed to be unique but not unpredictable. RAND_add is like
5781 RAND_seed, but takes an extra argument for an entropy estimate
5782 (RAND_seed always assumes full entropy).
5785 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5786 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5787 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5788 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5789 false-positive rate of at most 2^-80 for random input.
5792 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5795 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5796 in the 0.9.5 release), this returns the chain
5797 from an X509_CTX structure with a dup of the stack and all
5798 the X509 reference counts upped: so the stack will exist
5799 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5802 Also make SSL_SESSION_print() print out the verify return
5806 *) Add manpage for the pkcs12 command. Also change the default
5807 behaviour so MAC iteration counts are used unless the new
5808 -nomaciter option is used. This improves file security and
5809 only older versions of MSIE (4.0 for example) need it.
5812 *) Honor the no-xxx Configure options when creating .DEF files.
5815 *) Add PKCS#10 attributes to field table: challengePassword,
5816 unstructuredName and unstructuredAddress. These are taken from
5817 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5818 international characters are used.
5820 More changes to X509_ATTRIBUTE code: allow the setting of types
5821 based on strings. Remove the 'loc' parameter when adding
5822 attributes because these will be a SET OF encoding which is sorted
5826 *) Initial changes to the 'req' utility to allow request generation
5827 automation. This will allow an application to just generate a template
5828 file containing all the field values and have req construct the
5831 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5832 used all over the place including certificate requests and PKCS#7
5833 structures. They are currently handled manually where necessary with
5834 some primitive wrappers for PKCS#7. The new functions behave in a
5835 manner analogous to the X509 extension functions: they allow
5836 attributes to be looked up by NID and added.
5838 Later something similar to the X509V3 code would be desirable to
5839 automatically handle the encoding, decoding and printing of the
5840 more complex types. The string types like challengePassword can
5841 be handled by the string table functions.
5843 Also modified the multi byte string table handling. Now there is
5844 a 'global mask' which masks out certain types. The table itself
5845 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5846 is useful when for example there is only one permissible type
5847 (as in countryName) and using the mask might result in no valid
5851 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5852 SSL_get_peer_finished to allow applications to obtain the latest
5853 Finished messages sent to the peer or expected from the peer,
5854 respectively. (SSL_get_peer_finished is usually the Finished message
5855 actually received from the peer, otherwise the protocol will be aborted.)
5857 As the Finished message are message digests of the complete handshake
5858 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5859 be used for external authentication procedures when the authentication
5860 provided by SSL/TLS is not desired or is not enough.
5863 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5864 the host supports BWX extension and if Compaq C is present on the
5865 $PATH. Just exploiting of the BWX extension results in 20-30%
5866 performance kick for some algorithms, e.g. DES and RC4 to mention
5867 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5871 *) Add support for MS "fast SGC". This is arguably a violation of the
5872 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5873 weak crypto and after checking the certificate is SGC a second one
5874 with strong crypto. MS SGC stops the first handshake after receiving
5875 the server certificate message and sends a second client hello. Since
5876 a server will typically do all the time consuming operations before
5877 expecting any further messages from the client (server key exchange
5878 is the most expensive) there is little difference between the two.
5880 To get OpenSSL to support MS SGC we have to permit a second client
5881 hello message after we have sent server done. In addition we have to
5882 reset the MAC if we do get this second client hello.
5885 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5886 if a DER encoded private key is RSA or DSA traditional format. Changed
5887 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5888 format DER encoded private key. Newer code should use PKCS#8 format which
5889 has the key type encoded in the ASN1 structure. Added DER private key
5890 support to pkcs8 application.
5893 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5894 ciphersuites has been selected (as required by the SSL 3/TLS 1
5895 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5896 is set, we interpret this as a request to violate the specification
5897 (the worst that can happen is a handshake failure, and 'correct'
5898 behaviour would result in a handshake failure anyway).
5901 *) In SSL_CTX_add_session, take into account that there might be multiple
5902 SSL_SESSION structures with the same session ID (e.g. when two threads
5903 concurrently obtain them from an external cache).
5904 The internal cache can handle only one SSL_SESSION with a given ID,
5905 so if there's a conflict, we now throw out the old one to achieve
5909 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5910 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5911 some routines that use cipher OIDs: some ciphers do not have OIDs
5912 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5916 *) Simplify the trust setting structure and code. Now we just have
5917 two sequences of OIDs for trusted and rejected settings. These will
5918 typically have values the same as the extended key usage extension
5919 and any application specific purposes.
5921 The trust checking code now has a default behaviour: it will just
5922 check for an object with the same NID as the passed id. Functions can
5923 be provided to override either the default behaviour or the behaviour
5924 for a given id. SSL client, server and email already have functions
5925 in place for compatibility: they check the NID and also return "trusted"
5926 if the certificate is self signed.
5929 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5930 traditional format into an EVP_PKEY structure.
5933 *) Add a password callback function PEM_cb() which either prompts for
5934 a password if usr_data is NULL or otherwise assumes it is a null
5935 terminated password. Allow passwords to be passed on command line
5936 environment or config files in a few more utilities.
5939 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5940 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5941 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5942 Update documentation.
5945 *) Support for ASN1 "NULL" type. This could be handled before by using
5946 ASN1_TYPE but there wasn't any function that would try to read a NULL
5947 and produce an error if it couldn't. For compatibility we also have
5948 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5949 don't allocate anything because they don't need to.
5952 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5954 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5956 *) Rebuild of the memory allocation routines used by OpenSSL code and
5957 possibly others as well. The purpose is to make an interface that
5958 provide hooks so anyone can build a separate set of allocation and
5959 deallocation routines to be used by OpenSSL, for example memory
5960 pool implementations, or something else, which was previously hard
5961 since Malloc(), Realloc() and Free() were defined as macros having
5962 the values malloc, realloc and free, respectively (except for Win32
5963 compilations). The same is provided for memory debugging code.
5964 OpenSSL already comes with functionality to find memory leaks, but
5965 this gives people a chance to debug other memory problems.
5967 With these changes, a new set of functions and macros have appeared:
5969 CRYPTO_set_mem_debug_functions() [F]
5970 CRYPTO_get_mem_debug_functions() [F]
5971 CRYPTO_dbg_set_options() [F]
5972 CRYPTO_dbg_get_options() [F]
5973 CRYPTO_malloc_debug_init() [M]
5975 The memory debug functions are NULL by default, unless the library
5976 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5977 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5978 gives the standard debugging functions that come with OpenSSL) or
5979 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5980 provided by the library user) must be used. When the standard
5981 debugging functions are used, CRYPTO_dbg_set_options can be used to
5982 request additional information:
5983 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5984 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5986 Also, things like CRYPTO_set_mem_functions will always give the
5987 expected result (the new set of functions is used for allocation
5988 and deallocation) at all times, regardless of platform and compiler
5991 To finish it up, some functions that were never use in any other
5992 way than through macros have a new API and new semantic:
5995 CRYPTO_dbg_realloc()
5998 All macros of value have retained their old syntax.
5999 [Richard Levitte and Bodo Moeller]
6001 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6002 ordering of SMIMECapabilities wasn't in "strength order" and there
6003 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6007 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6008 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6009 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6011 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6012 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6013 functionality to handle multipart/signed properly) and a utility
6014 called 'smime' to call all this stuff. This is based on code I
6015 originally wrote for Celo who have kindly allowed it to be
6016 included in OpenSSL.
6019 *) Add variants des_set_key_checked and des_set_key_unchecked of
6020 des_set_key (aka des_key_sched). Global variable des_check_key
6021 decides which of these is called by des_set_key; this way
6022 des_check_key behaves as it always did, but applications and
6023 the library itself, which was buggy for des_check_key == 1,
6024 have a cleaner way to pick the version they need.
6027 *) New function PKCS12_newpass() which changes the password of a
6031 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6032 dynamic mix. In both cases the ids can be used as an index into the
6033 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6034 functions so they accept a list of the field values and the
6035 application doesn't need to directly manipulate the X509_TRUST
6039 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6043 *) Modify the way the V3 extension code looks up extensions. This now
6044 works in a similar way to the object code: we have some "standard"
6045 extensions in a static table which is searched with OBJ_bsearch()
6046 and the application can add dynamic ones if needed. The file
6047 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6048 updated whenever a new extension is added to the core code and kept
6049 in ext_nid order. There is a simple program 'tabtest.c' which checks
6050 this. New extensions are not added too often so this file can readily
6051 be maintained manually.
6053 There are two big advantages in doing things this way. The extensions
6054 can be looked up immediately and no longer need to be "added" using
6055 X509V3_add_standard_extensions(): this function now does nothing.
6056 [Side note: I get *lots* of email saying the extension code doesn't
6057 work because people forget to call this function]
6058 Also no dynamic allocation is done unless new extensions are added:
6059 so if we don't add custom extensions there is no need to call
6060 X509V3_EXT_cleanup().
6063 *) Modify enc utility's salting as follows: make salting the default. Add a
6064 magic header, so unsalted files fail gracefully instead of just decrypting
6065 to garbage. This is because not salting is a big security hole, so people
6066 should be discouraged from doing it.
6069 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6070 digest to be passed on the command line but it only used this
6071 parameter when signing a certificate. Modified so all relevant
6072 operations are affected by the digest parameter including the
6073 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6074 DSA key was used because it didn't fix the digest.
6077 *) Initial certificate chain verify code. Currently tests the untrusted
6078 certificates for consistency with the verify purpose (which is set
6079 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6081 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6082 this is because it will reject chains with invalid extensions whereas
6083 every previous version of OpenSSL and SSLeay made no checks at all.
6085 Trust code: checks the root CA for the relevant trust settings. Trust
6086 settings have an initial value consistent with the verify purpose: e.g.
6087 if the verify purpose is for SSL client use it expects the CA to be
6088 trusted for SSL client use. However the default value can be changed to
6089 permit custom trust settings: one example of this would be to only trust
6090 certificates from a specific "secure" set of CAs.
6092 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6093 which should be used for version portability: especially since the
6094 verify structure is likely to change more often now.
6096 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6097 to set them. If not set then assume SSL clients will verify SSL servers
6100 Two new options to the verify program: -untrusted allows a set of
6101 untrusted certificates to be passed in and -purpose which sets the
6102 intended purpose of the certificate. If a purpose is set then the
6103 new chain verify code is used to check extension consistency.
6106 *) Support for the authority information access extension.
6109 *) Modify RSA and DSA PEM read routines to transparently handle
6110 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6111 public keys in a format compatible with certificate
6112 SubjectPublicKeyInfo structures. Unfortunately there were already
6113 functions called *_PublicKey_* which used various odd formats so
6114 these are retained for compatibility: however the DSA variants were
6115 never in a public release so they have been deleted. Changed dsa/rsa
6116 utilities to handle the new format: note no releases ever handled public
6117 keys so we should be OK.
6119 The primary motivation for this change is to avoid the same fiasco
6120 that dogs private keys: there are several incompatible private key
6121 formats some of which are standard and some OpenSSL specific and
6122 require various evil hacks to allow partial transparent handling and
6123 even then it doesn't work with DER formats. Given the option anything
6124 other than PKCS#8 should be dumped: but the other formats have to
6125 stay in the name of compatibility.
6127 With public keys and the benefit of hindsight one standard format
6128 is used which works with EVP_PKEY, RSA or DSA structures: though
6129 it clearly returns an error if you try to read the wrong kind of key.
6131 Added a -pubkey option to the 'x509' utility to output the public key.
6132 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6133 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6134 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6135 that do the same as the EVP_PKEY_assign_*() except they up the
6136 reference count of the added key (they don't "swallow" the
6140 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6141 CRLs would fail if the file contained no certificates or no CRLs:
6142 added a new function to read in both types and return the number
6143 read: this means that if none are read it will be an error. The
6144 DER versions of the certificate and CRL reader would always fail
6145 because it isn't possible to mix certificates and CRLs in DER format
6146 without choking one or the other routine. Changed this to just read
6147 a certificate: this is the best we can do. Also modified the code
6148 in apps/verify.c to take notice of return codes: it was previously
6149 attempting to read in certificates from NULL pointers and ignoring
6150 any errors: this is one reason why the cert and CRL reader seemed
6151 to work. It doesn't check return codes from the default certificate
6152 routines: these may well fail if the certificates aren't installed.
6155 *) Code to support otherName option in GeneralName.
6158 *) First update to verify code. Change the verify utility
6159 so it warns if it is passed a self signed certificate:
6160 for consistency with the normal behaviour. X509_verify
6161 has been modified to it will now verify a self signed
6162 certificate if *exactly* the same certificate appears
6163 in the store: it was previously impossible to trust a
6164 single self signed certificate. This means that:
6165 openssl verify ss.pem
6166 now gives a warning about a self signed certificate but
6167 openssl verify -CAfile ss.pem ss.pem
6171 *) For servers, store verify_result in SSL_SESSION data structure
6172 (and add it to external session representation).
6173 This is needed when client certificate verifications fails,
6174 but an application-provided verification callback (set by
6175 SSL_CTX_set_cert_verify_callback) allows accepting the session
6176 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6177 but returns 1): When the session is reused, we have to set
6178 ssl->verify_result to the appropriate error code to avoid
6180 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6182 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6183 case in PKCS7_dataInit() where the signed PKCS7 structure
6184 didn't contain any existing data because it was being created.
6185 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6187 *) Add a salt to the key derivation routines in enc.c. This
6188 forms the first 8 bytes of the encrypted file. Also add a
6189 -S option to allow a salt to be input on the command line.
6192 *) New function X509_cmp(). Oddly enough there wasn't a function
6193 to compare two certificates. We do this by working out the SHA1
6194 hash and comparing that. X509_cmp() will be needed by the trust
6198 *) SSL_get1_session() is like SSL_get_session(), but increments
6199 the reference count in the SSL_SESSION returned.
6200 [Geoff Thorpe <geoff@eu.c2.net>]
6202 *) Fix for 'req': it was adding a null to request attributes.
6203 Also change the X509_LOOKUP and X509_INFO code to handle
6204 certificate auxiliary information.
6207 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6211 *) Add the possibility to add extra information to the memory leak
6212 detecting output, to form tracebacks, showing from where each
6213 allocation was originated: CRYPTO_push_info("constant string") adds
6214 the string plus current file name and line number to a per-thread
6215 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6216 is like calling CYRPTO_pop_info() until the stack is empty.
6217 Also updated memory leak detection code to be multi-thread-safe.
6220 *) Add options -text and -noout to pkcs7 utility and delete the
6221 encryption options which never did anything. Update docs.
6224 *) Add options to some of the utilities to allow the pass phrase
6225 to be included on either the command line (not recommended on
6226 OSes like Unix) or read from the environment. Update the
6227 manpages and fix a few bugs.
6230 *) Add a few manpages for some of the openssl commands.
6233 *) Fix the -revoke option in ca. It was freeing up memory twice,
6234 leaking and not finding already revoked certificates.
6237 *) Extensive changes to support certificate auxiliary information.
6238 This involves the use of X509_CERT_AUX structure and X509_AUX
6239 functions. An X509_AUX function such as PEM_read_X509_AUX()
6240 can still read in a certificate file in the usual way but it
6241 will also read in any additional "auxiliary information". By
6242 doing things this way a fair degree of compatibility can be
6243 retained: existing certificates can have this information added
6244 using the new 'x509' options.
6246 Current auxiliary information includes an "alias" and some trust
6247 settings. The trust settings will ultimately be used in enhanced
6248 certificate chain verification routines: currently a certificate
6249 can only be trusted if it is self signed and then it is trusted
6253 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6254 The problem was that one of the replacement routines had not been working
6255 since SSLeay releases. For now the offending routine has been replaced
6256 with non-optimised assembler. Even so, this now gives around 95%
6257 performance improvement for 1024 bit RSA signs.
6260 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6261 handling. Most clients have the effective key size in bits equal to
6262 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6263 A few however don't do this and instead use the size of the decrypted key
6264 to determine the RC2 key length and the AlgorithmIdentifier to determine
6265 the effective key length. In this case the effective key length can still
6266 be 40 bits but the key length can be 168 bits for example. This is fixed
6267 by manually forcing an RC2 key into the EVP_PKEY structure because the
6268 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6269 the key length and effective key length are equal.
6272 *) Add a bunch of functions that should simplify the creation of
6273 X509_NAME structures. Now you should be able to do:
6274 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6275 and have it automatically work out the correct field type and fill in
6276 the structures. The more adventurous can try:
6277 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6278 and it will (hopefully) work out the correct multibyte encoding.
6281 *) Change the 'req' utility to use the new field handling and multibyte
6282 copy routines. Before the DN field creation was handled in an ad hoc
6283 way in req, ca, and x509 which was rather broken and didn't support
6284 BMPStrings or UTF8Strings. Since some software doesn't implement
6285 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6286 using the dirstring_type option. See the new comment in the default
6287 openssl.cnf for more info.
6290 *) Make crypto/rand/md_rand.c more robust:
6291 - Assure unique random numbers after fork().
6292 - Make sure that concurrent threads access the global counter and
6293 md serializably so that we never lose entropy in them
6294 or use exactly the same state in multiple threads.
6295 Access to the large state is not always serializable because
6296 the additional locking could be a performance killer, and
6297 md should be large enough anyway.
6300 *) New file apps/app_rand.c with commonly needed functionality
6301 for handling the random seed file.
6303 Use the random seed file in some applications that previously did not:
6305 dsaparam -genkey (which also ignored its '-rand' option),
6308 x509 (when signing).
6309 Except on systems with /dev/urandom, it is crucial to have a random
6310 seed file at least for key creation, DSA signing, and for DH exchanges;
6311 for RSA signatures we could do without one.
6313 gendh and gendsa (unlike genrsa) used to read only the first byte
6314 of each file listed in the '-rand' option. The function as previously
6315 found in genrsa is now in app_rand.c and is used by all programs
6316 that support '-rand'.
6319 *) In RAND_write_file, use mode 0600 for creating files;
6320 don't just chmod when it may be too late.
6323 *) Report an error from X509_STORE_load_locations
6324 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6327 *) New function ASN1_mbstring_copy() this copies a string in either
6328 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6329 into an ASN1_STRING type. A mask of permissible types is passed
6330 and it chooses the "minimal" type to use or an error if not type
6334 *) Add function equivalents to the various macros in asn1.h. The old
6335 macros are retained with an M_ prefix. Code inside the library can
6336 use the M_ macros. External code (including the openssl utility)
6337 should *NOT* in order to be "shared library friendly".
6340 *) Add various functions that can check a certificate's extensions
6341 to see if it usable for various purposes such as SSL client,
6342 server or S/MIME and CAs of these types. This is currently
6343 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6344 verification. Also added a -purpose flag to x509 utility to
6345 print out all the purposes.
6348 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6352 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6353 for, obtain and decode and extension and obtain its critical flag.
6354 This allows all the necessary extension code to be handled in a
6355 single function call.
6358 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6359 platforms. See crypto/rc4/rc4_enc.c for further details.
6362 *) New -noout option to asn1parse. This causes no output to be produced
6363 its main use is when combined with -strparse and -out to extract data
6364 from a file (which may not be in ASN.1 format).
6367 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6368 when producing the local key id.
6369 [Richard Levitte <levitte@stacken.kth.se>]
6371 *) New option -dhparam in s_server. This allows a DH parameter file to be
6372 stated explicitly. If it is not stated then it tries the first server
6373 certificate file. The previous behaviour hard coded the filename
6377 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6378 a public key to be input or output. For example:
6379 openssl rsa -in key.pem -pubout -out pubkey.pem
6380 Also added necessary DSA public key functions to handle this.
6383 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6384 in the message. This was handled by allowing
6385 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6386 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6388 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6389 to the end of the strings whereas this didn't. This would cause problems
6390 if strings read with d2i_ASN1_bytes() were later modified.
6391 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6393 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6394 data and it contains EOF it will end up returning an error. This is
6395 caused by input 46 bytes long. The cause is due to the way base64
6396 BIOs find the start of base64 encoded data. They do this by trying a
6397 trial decode on each line until they find one that works. When they
6398 do a flag is set and it starts again knowing it can pass all the
6399 data directly through the decoder. Unfortunately it doesn't reset
6400 the context it uses. This means that if EOF is reached an attempt
6401 is made to pass two EOFs through the context and this causes the
6402 resulting error. This can also cause other problems as well. As is
6403 usual with these problems it takes *ages* to find and the fix is
6404 trivial: move one line.
6405 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6407 *) Ugly workaround to get s_client and s_server working under Windows. The
6408 old code wouldn't work because it needed to select() on sockets and the
6409 tty (for keypresses and to see if data could be written). Win32 only
6410 supports select() on sockets so we select() with a 1s timeout on the
6411 sockets and then see if any characters are waiting to be read, if none
6412 are present then we retry, we also assume we can always write data to
6413 the tty. This isn't nice because the code then blocks until we've
6414 received a complete line of data and it is effectively polling the
6415 keyboard at 1s intervals: however it's quite a bit better than not
6416 working at all :-) A dedicated Windows application might handle this
6417 with an event loop for example.
6420 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6421 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6422 will be called when RSA_sign() and RSA_verify() are used. This is useful
6423 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6424 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6425 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6426 This necessitated the support of an extra signature type NID_md5_sha1
6427 for SSL signatures and modifications to the SSL library to use it instead
6428 of calling RSA_public_decrypt() and RSA_private_encrypt().
6431 *) Add new -verify -CAfile and -CApath options to the crl program, these
6432 will lookup a CRL issuers certificate and verify the signature in a
6433 similar way to the verify program. Tidy up the crl program so it
6434 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6435 less strict. It will now permit CRL extensions even if it is not
6436 a V2 CRL: this will allow it to tolerate some broken CRLs.
6439 *) Initialize all non-automatic variables each time one of the openssl
6440 sub-programs is started (this is necessary as they may be started
6441 multiple times from the "OpenSSL>" prompt).
6442 [Lennart Bang, Bodo Moeller]
6444 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6445 removing all other RSA functionality (this is what NO_RSA does). This
6446 is so (for example) those in the US can disable those operations covered
6447 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6451 *) Non-copying interface to BIO pairs.
6452 (still largely untested)
6455 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6456 ASCII string. This was handled independently in various places before.
6459 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6460 UTF8 strings a character at a time.
6463 *) Use client_version from client hello to select the protocol
6464 (s23_srvr.c) and for RSA client key exchange verification
6465 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6468 *) Add various utility functions to handle SPKACs, these were previously
6469 handled by poking round in the structure internals. Added new function
6470 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6471 print, verify and generate SPKACs. Based on an original idea from
6472 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6475 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6478 *) Allow the config file extension section to be overwritten on the
6479 command line. Based on an original idea from Massimiliano Pala
6480 <madwolf@comune.modena.it>. The new option is called -extensions
6481 and can be applied to ca, req and x509. Also -reqexts to override
6482 the request extensions in req and -crlexts to override the crl extensions
6486 *) Add new feature to the SPKAC handling in ca. Now you can include
6487 the same field multiple times by preceding it by "XXXX." for example:
6490 this is the same syntax as used in the req config file.
6493 *) Allow certificate extensions to be added to certificate requests. These
6494 are specified in a 'req_extensions' option of the req section of the
6495 config file. They can be printed out with the -text option to req but
6496 are otherwise ignored at present.
6499 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6500 data read consists of only the final block it would not decrypted because
6501 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6502 A misplaced 'break' also meant the decrypted final block might not be
6503 copied until the next read.
6506 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6507 a few extra parameters to the DH structure: these will be useful if
6508 for example we want the value of 'q' or implement X9.42 DH.
6511 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6512 provides hooks that allow the default DSA functions or functions on a
6513 "per key" basis to be replaced. This allows hardware acceleration and
6514 hardware key storage to be handled without major modification to the
6515 library. Also added low level modexp hooks and CRYPTO_EX structure and
6516 associated functions.
6519 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6520 as "read only": it can't be written to and the buffer it points to will
6521 not be freed. Reading from a read only BIO is much more efficient than
6522 a normal memory BIO. This was added because there are several times when
6523 an area of memory needs to be read from a BIO. The previous method was
6524 to create a memory BIO and write the data to it, this results in two
6525 copies of the data and an O(n^2) reading algorithm. There is a new
6526 function BIO_new_mem_buf() which creates a read only memory BIO from
6527 an area of memory. Also modified the PKCS#7 routines to use read only
6531 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6532 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6533 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6534 but a retry condition occured while trying to read the rest.
6537 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6538 NID_pkcs7_encrypted by default: this was wrong since this should almost
6539 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6540 the encrypted data type: this is a more sensible place to put it and it
6541 allows the PKCS#12 code to be tidied up that duplicated this
6545 *) Changed obj_dat.pl script so it takes its input and output files on
6546 the command line. This should avoid shell escape redirection problems
6550 *) Initial support for certificate extension requests, these are included
6551 in things like Xenroll certificate requests. Included functions to allow
6552 extensions to be obtained and added.
6555 *) -crlf option to s_client and s_server for sending newlines as
6556 CRLF (as required by many protocols).
6559 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6561 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6562 [Ralf S. Engelschall]
6564 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6565 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6567 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6571 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6572 DH parameters/keys (q is lost during that conversion, but the resulting
6573 DH parameters contain its length).
6575 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6576 much faster than DH_generate_parameters (which creates parameters
6577 where p = 2*q + 1), and also the smaller q makes DH computations
6578 much more efficient (160-bit exponentiation instead of 1024-bit
6579 exponentiation); so this provides a convenient way to support DHE
6580 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6581 utter importance to use
6582 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6584 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6585 when such DH parameters are used, because otherwise small subgroup
6586 attacks may become possible!
6589 *) Avoid memory leak in i2d_DHparams.
6592 *) Allow the -k option to be used more than once in the enc program:
6593 this allows the same encrypted message to be read by multiple recipients.
6596 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6597 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6598 it will always use the numerical form of the OID, even if it has a short
6602 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6603 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6604 otherwise bn_mod_exp was called. In the case of hardware keys for example
6605 no private key components need be present and it might store extra data
6606 in the RSA structure, which cannot be accessed from bn_mod_exp.
6607 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6608 private key operations.
6611 *) Added support for SPARC Linux.
6614 *) pem_password_cb function type incompatibly changed from
6615 typedef int pem_password_cb(char *buf, int size, int rwflag);
6617 ....(char *buf, int size, int rwflag, void *userdata);
6618 so that applications can pass data to their callbacks:
6619 The PEM[_ASN1]_{read,write}... functions and macros now take an
6620 additional void * argument, which is just handed through whenever
6621 the password callback is called.
6622 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6624 New function SSL_CTX_set_default_passwd_cb_userdata.
6626 Compatibility note: As many C implementations push function arguments
6627 onto the stack in reverse order, the new library version is likely to
6628 interoperate with programs that have been compiled with the old
6629 pem_password_cb definition (PEM_whatever takes some data that
6630 happens to be on the stack as its last argument, and the callback
6631 just ignores this garbage); but there is no guarantee whatsoever that
6634 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6635 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6636 problems not only on Windows, but also on some Unix platforms.
6637 To avoid problematic command lines, these definitions are now in an
6638 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6639 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6642 *) MIPS III/IV assembler module is reimplemented.
6645 *) More DES library cleanups: remove references to srand/rand and
6646 delete an unused file.
6649 *) Add support for the the free Netwide assembler (NASM) under Win32,
6650 since not many people have MASM (ml) and it can be hard to obtain.
6651 This is currently experimental but it seems to work OK and pass all
6652 the tests. Check out INSTALL.W32 for info.
6655 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6656 without temporary keys kept an extra copy of the server key,
6657 and connections with temporary keys did not free everything in case
6661 *) New function RSA_check_key and new openssl rsa option -check
6662 for verifying the consistency of RSA keys.
6663 [Ulf Moeller, Bodo Moeller]
6665 *) Various changes to make Win32 compile work:
6666 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6667 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6668 comparison" warnings.
6669 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6672 *) Add a debugging option to PKCS#5 v2 key generation function: when
6673 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6674 derived keys are printed to stderr.
6677 *) Copy the flags in ASN1_STRING_dup().
6678 [Roman E. Pavlov <pre@mo.msk.ru>]
6680 *) The x509 application mishandled signing requests containing DSA
6681 keys when the signing key was also DSA and the parameters didn't match.
6683 It was supposed to omit the parameters when they matched the signing key:
6684 the verifying software was then supposed to automatically use the CA's
6685 parameters if they were absent from the end user certificate.
6687 Omitting parameters is no longer recommended. The test was also
6688 the wrong way round! This was probably due to unusual behaviour in
6689 EVP_cmp_parameters() which returns 1 if the parameters match.
6690 This meant that parameters were omitted when they *didn't* match and
6691 the certificate was useless. Certificates signed with 'ca' didn't have
6693 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6695 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6696 The interface is as follows:
6697 Applications can use
6698 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6699 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6700 "off" is now the default.
6701 The library internally uses
6702 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6703 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6704 to disable memory-checking temporarily.
6706 Some inconsistent states that previously were possible (and were
6707 even the default) are now avoided.
6709 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6710 with each memory chunk allocated; this is occasionally more helpful
6711 than just having a counter.
6713 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6715 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6719 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6720 which largely parallels "options", but is for changing API behaviour,
6721 whereas "options" are about protocol behaviour.
6722 Initial "mode" flags are:
6724 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6725 a single record has been written.
6726 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6727 retries use the same buffer location.
6728 (But all of the contents must be
6732 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6735 *) Fix problems with no-hmac etc.
6736 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6738 *) New functions RSA_get_default_method(), RSA_set_method() and
6739 RSA_get_method(). These allows replacement of RSA_METHODs without having
6740 to mess around with the internals of an RSA structure.
6743 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6744 Also really enable memory leak checks in openssl.c and in some
6746 [Chad C. Mulligan, Bodo Moeller]
6748 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6749 up the length of negative integers. This has now been simplified to just
6750 store the length when it is first determined and use it later, rather
6751 than trying to keep track of where data is copied and updating it to
6753 [Steve Henson, reported by Brien Wheeler
6754 <bwheeler@authentica-security.com>]
6756 *) Add a new function PKCS7_signatureVerify. This allows the verification
6757 of a PKCS#7 signature but with the signing certificate passed to the
6758 function itself. This contrasts with PKCS7_dataVerify which assumes the
6759 certificate is present in the PKCS#7 structure. This isn't always the
6760 case: certificates can be omitted from a PKCS#7 structure and be
6761 distributed by "out of band" means (such as a certificate database).
6764 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6765 function prototypes in pem.h, also change util/mkdef.pl to add the
6766 necessary function names.
6769 *) mk1mf.pl (used by Windows builds) did not properly read the
6770 options set by Configure in the top level Makefile, and Configure
6771 was not even able to write more than one option correctly.
6772 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6775 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6776 file to be loaded from a BIO or FILE pointer. The BIO version will
6777 for example allow memory BIOs to contain config info.
6780 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6781 Whoever hopes to achieve shared-library compatibility across versions
6782 must use this, not the compile-time macro.
6783 (Exercise 0.9.4: Which is the minimum library version required by
6785 Note: All this applies only to multi-threaded programs, others don't
6789 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6790 through a BIO pair triggered the default case, i.e.
6791 SSLerr(...,SSL_R_UNKNOWN_STATE).
6794 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6795 can use the SSL library even if none of the specific BIOs is
6799 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6800 for the encoded length.
6801 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6803 *) Add initial documentation of the X509V3 functions.
6806 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6807 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6808 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6809 secure PKCS#8 private key format with a high iteration count.
6812 *) Fix determination of Perl interpreter: A perl or perl5
6813 _directory_ in $PATH was also accepted as the interpreter.
6814 [Ralf S. Engelschall]
6816 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6817 wrong with it but it was very old and did things like calling
6818 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6822 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6823 to use the new extension code.
6826 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6827 with macros. This should make it easier to change their form, add extra
6828 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6832 *) Add to configuration table a new entry that can specify an alternative
6833 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6834 according to Mark Crispin <MRC@Panda.COM>.
6838 *) DES CBC did not update the IV. Weird.
6841 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6842 Changing the behaviour of the former might break existing programs --
6843 where IV updating is needed, des_ncbc_encrypt can be used.
6846 *) When bntest is run from "make test" it drives bc to check its
6847 calculations, as well as internally checking them. If an internal check
6848 fails, it needs to cause bc to give a non-zero result or make test carries
6849 on without noticing the failure. Fixed.
6852 *) DES library cleanups.
6855 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6856 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6857 ciphers. NOTE: although the key derivation function has been verified
6858 against some published test vectors it has not been extensively tested
6859 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6863 *) Instead of "mkdir -p", which is not fully portable, use new
6864 Perl script "util/mkdir-p.pl".
6867 *) Rewrite the way password based encryption (PBE) is handled. It used to
6868 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6869 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6870 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6871 the 'parameter' field of the AlgorithmIdentifier is passed to the
6872 underlying key generation function so it must do its own ASN1 parsing.
6873 This has also changed the EVP_PBE_CipherInit() function which now has a
6874 'parameter' argument instead of literal salt and iteration count values
6875 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6878 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6879 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6880 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6881 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6882 value was just used as a "magic string" and not used directly its
6883 value doesn't matter.
6886 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6890 *) "linux-sparc64" configuration (ultrapenguin).
6891 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6892 "linux-sparc" configuration.
6893 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6895 *) config now generates no-xxx options for missing ciphers.
6898 *) Support the EBCDIC character set (work in progress).
6899 File ebcdic.c not yet included because it has a different license.
6900 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6902 *) Support BS2000/OSD-POSIX.
6903 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6905 *) Make callbacks for key generation use void * instead of char *.
6908 *) Make S/MIME samples compile (not yet tested).
6911 *) Additional typesafe stacks.
6914 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6918 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6920 *) New configuration variant "sco5-gcc".
6922 *) Updated some demos.
6923 [Sean O Riordain, Wade Scholine]
6925 *) Add missing BIO_free at exit of pkcs12 application.
6928 *) Fix memory leak in conf.c.
6931 *) Updates for Win32 to assembler version of MD5.
6934 *) Set #! path to perl in apps/der_chop to where we found it
6935 instead of using a fixed path.
6938 *) SHA library changes for irix64-mips4-cc.
6941 *) Improvements for VMS support.
6945 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6947 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6948 This also avoids the problems with SC4.2 and unpatched SC5.
6949 [Andy Polyakov <appro@fy.chalmers.se>]
6951 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6952 These are required because of the typesafe stack would otherwise break
6953 existing code. If old code used a structure member which used to be STACK
6954 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6955 sk_num or sk_value it would produce an error because the num, data members
6956 are not present in STACK_OF. Now it just produces a warning. sk_set
6957 replaces the old method of assigning a value to sk_value
6958 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6959 that does this will no longer work (and should use sk_set instead) but
6960 this could be regarded as a "questionable" behaviour anyway.
6963 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6964 correctly handle encrypted S/MIME data.
6967 *) Change type of various DES function arguments from des_cblock
6968 (which means, in function argument declarations, pointer to char)
6969 to des_cblock * (meaning pointer to array with 8 char elements),
6970 which allows the compiler to do more typechecking; it was like
6971 that back in SSLeay, but with lots of ugly casts.
6973 Introduce new type const_des_cblock.
6976 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6977 problems: find RecipientInfo structure that matches recipient certificate
6978 and initialise the ASN1 structures properly based on passed cipher.
6981 *) Belatedly make the BN tests actually check the results.
6984 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6985 to and from BNs: it was completely broken. New compilation option
6986 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6987 key elements as negative integers.
6990 *) Reorganize and speed up MD5.
6991 [Andy Polyakov <appro@fy.chalmers.se>]
6994 [Richard Levitte <richard@levitte.org>]
6996 *) New option -out to asn1parse to allow the parsed structure to be
6997 output to a file. This is most useful when combined with the -strparse
6998 option to examine the output of things like OCTET STRINGS.
7001 *) Make SSL library a little more fool-proof by not requiring any longer
7002 that SSL_set_{accept,connect}_state be called before
7003 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7004 in many applications because usually everything *appeared* to work as
7005 intended anyway -- now it really works as intended).
7008 *) Move openssl.cnf out of lib/.
7011 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7012 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7013 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7014 [Ralf S. Engelschall]
7016 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7017 handle PKCS#7 enveloped data properly.
7018 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7020 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7021 copying pointers. The cert_st handling is changed by this in
7022 various ways (and thus what used to be known as ctx->default_cert
7023 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7024 any longer when s->cert does not give us what we need).
7025 ssl_cert_instantiate becomes obsolete by this change.
7026 As soon as we've got the new code right (possibly it already is?),
7027 we have solved a couple of bugs of the earlier code where s->cert
7028 was used as if it could not have been shared with other SSL structures.
7030 Note that using the SSL API in certain dirty ways now will result
7031 in different behaviour than observed with earlier library versions:
7032 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7033 does not influence s as it used to.
7035 In order to clean up things more thoroughly, inside SSL_SESSION
7036 we don't use CERT any longer, but a new structure SESS_CERT
7037 that holds per-session data (if available); currently, this is
7038 the peer's certificate chain and, for clients, the server's certificate
7039 and temporary key. CERT holds only those values that can have
7040 meaningful defaults in an SSL_CTX.
7043 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7044 from the internal representation. Various PKCS#7 fixes: remove some
7045 evil casts and set the enc_dig_alg field properly based on the signing
7049 *) Allow PKCS#12 password to be set from the command line or the
7050 environment. Let 'ca' get its config file name from the environment
7051 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7055 *) Allow certificate policies extension to use an IA5STRING for the
7056 organization field. This is contrary to the PKIX definition but
7057 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7061 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7062 without disallowing inline assembler and the like for non-pedantic builds.
7065 *) Support Borland C++ builder.
7066 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7071 *) SHA-1 cleanups and performance enhancements.
7072 [Andy Polyakov <appro@fy.chalmers.se>]
7074 *) Sparc v8plus assembler for the bignum library.
7075 [Andy Polyakov <appro@fy.chalmers.se>]
7077 *) Accept any -xxx and +xxx compiler options in Configure.
7080 *) Update HPUX configuration.
7083 *) Add missing sk_<type>_unshift() function to safestack.h
7084 [Ralf S. Engelschall]
7086 *) New function SSL_CTX_use_certificate_chain_file that sets the
7087 "extra_cert"s in addition to the certificate. (This makes sense
7088 only for "PEM" format files, as chains as a whole are not
7092 *) Support verify_depth from the SSL API.
7093 x509_vfy.c had what can be considered an off-by-one-error:
7094 Its depth (which was not part of the external interface)
7095 was actually counting the number of certificates in a chain;
7096 now it really counts the depth.
7099 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7100 instead of X509err, which often resulted in confusing error
7101 messages since the error codes are not globally unique
7102 (e.g. an alleged error in ssl3_accept when a certificate
7103 didn't match the private key).
7105 *) New function SSL_CTX_set_session_id_context that allows to set a default
7106 value (so that you don't need SSL_set_session_id_context for each
7107 connection using the SSL_CTX).
7110 *) OAEP decoding bug fix.
7113 *) Support INSTALL_PREFIX for package builders, as proposed by
7117 *) New Configure options "threads" and "no-threads". For systems
7118 where the proper compiler options are known (currently Solaris
7119 and Linux), "threads" is the default.
7122 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7125 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7126 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7127 such as /usr/local/bin.
7130 *) "make linux-shared" to build shared libraries.
7131 [Niels Poppe <niels@netbox.org>]
7133 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7136 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7137 extension adding in x509 utility.
7140 *) Remove NOPROTO sections and error code comments.
7143 *) Partial rewrite of the DEF file generator to now parse the ANSI
7147 *) New Configure options --prefix=DIR and --openssldir=DIR.
7150 *) Complete rewrite of the error code script(s). It is all now handled
7151 by one script at the top level which handles error code gathering,
7152 header rewriting and C source file generation. It should be much better
7153 than the old method: it now uses a modified version of Ulf's parser to
7154 read the ANSI prototypes in all header files (thus the old K&R definitions
7155 aren't needed for error creation any more) and do a better job of
7156 translating function codes into names. The old 'ASN1 error code imbedded
7157 in a comment' is no longer necessary and it doesn't use .err files which
7158 have now been deleted. Also the error code call doesn't have to appear all
7159 on one line (which resulted in some large lines...).
7162 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7165 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7166 0 (which usually indicates a closed connection), but continue reading.
7169 *) Fix some race conditions.
7172 *) Add support for CRL distribution points extension. Add Certificate
7173 Policies and CRL distribution points documentation.
7176 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7179 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7180 8 of keying material. Merlin has also confirmed interop with this fix
7181 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7182 [Merlin Hughes <merlin@baltimore.ie>]
7184 *) Fix lots of warnings.
7185 [Richard Levitte <levitte@stacken.kth.se>]
7187 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7188 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7189 [Richard Levitte <levitte@stacken.kth.se>]
7191 *) Fix problems with sizeof(long) == 8.
7192 [Andy Polyakov <appro@fy.chalmers.se>]
7194 *) Change functions to ANSI C.
7197 *) Fix typos in error codes.
7198 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7200 *) Remove defunct assembler files from Configure.
7203 *) SPARC v8 assembler BIGNUM implementation.
7204 [Andy Polyakov <appro@fy.chalmers.se>]
7206 *) Support for Certificate Policies extension: both print and set.
7207 Various additions to support the r2i method this uses.
7210 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7211 return a const string when you are expecting an allocated buffer.
7214 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7215 types DirectoryString and DisplayText.
7218 *) Add code to allow r2i extensions to access the configuration database,
7219 add an LHASH database driver and add several ctx helper functions.
7222 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7223 fail when they extended the size of a BIGNUM.
7226 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7227 support typesafe stack.
7230 *) Fix typo in SSL_[gs]et_options().
7231 [Nils Frostberg <nils@medcom.se>]
7233 *) Delete various functions and files that belonged to the (now obsolete)
7234 old X509V3 handling code.
7237 *) New Configure option "rsaref".
7240 *) Don't auto-generate pem.h.
7243 *) Introduce type-safe ASN.1 SETs.
7246 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7247 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7249 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7250 that links with OpenSSL (well at least cause lots of warnings), but fear
7251 not: the conversion is trivial, and it eliminates loads of evil casts. A
7252 few STACKed things have been converted already. Feel free to convert more.
7253 In the fullness of time, I'll do away with the STACK type altogether.
7256 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7257 specified in <certfile> by updating the entry in the index.txt file.
7258 This way one no longer has to edit the index.txt file manually for
7259 revoking a certificate. The -revoke option does the gory details now.
7260 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7262 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7263 `-text' option at all and this way the `-noout -text' combination was
7264 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7265 [Ralf S. Engelschall]
7267 *) Make sure a corresponding plain text error message exists for the
7268 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7269 verify callback function determined that a certificate was revoked.
7270 [Ralf S. Engelschall]
7272 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7273 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7274 all available cipers including rc5, which was forgotten until now.
7275 In order to let the testing shell script know which algorithms
7276 are available, a new (up to now undocumented) command
7277 "openssl list-cipher-commands" is used.
7280 *) Bugfix: s_client occasionally would sleep in select() when
7281 it should have checked SSL_pending() first.
7284 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7285 the raw DSA values prior to ASN.1 encoding.
7288 *) Tweaks to Configure
7289 [Niels Poppe <niels@netbox.org>]
7291 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7295 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7298 *) New config option to avoid instructions that are illegal on the 80386.
7299 The default code is faster, but requires at least a 486.
7302 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7303 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7304 same as SSL2_VERSION anyway.
7307 *) New "-showcerts" option for s_client.
7310 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7311 application. Various cleanups and fixes.
7314 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7315 modify error routines to work internally. Add error codes and PBE init
7316 to library startup routines.
7319 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7320 packing functions to asn1 and evp. Changed function names and error
7321 codes along the way.
7324 *) PKCS12 integration: and so it begins... First of several patches to
7325 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7326 objects to objects.h
7329 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7330 and display support for Thawte strong extranet extension.
7333 *) Add LinuxPPC support.
7334 [Jeff Dubrule <igor@pobox.org>]
7336 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7337 bn_div_words in alpha.s.
7338 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7340 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7341 OAEP isn't supported when OpenSSL is built with RSAref.
7342 [Ulf Moeller <ulf@fitug.de>]
7344 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7345 so they no longer are missing under -DNOPROTO.
7346 [Soren S. Jorvang <soren@t.dk>]
7349 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7351 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7352 doesn't work when the session is reused. Coming soon!
7355 *) Fix a security hole, that allows sessions to be reused in the wrong
7356 context thus bypassing client cert protection! All software that uses
7357 client certs and session caches in multiple contexts NEEDS PATCHING to
7358 allow session reuse! A fuller solution is in the works.
7359 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7361 *) Some more source tree cleanups (removed obsolete files
7362 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7363 permission on "config" script to be executable) and a fix for the INSTALL
7365 [Ulf Moeller <ulf@fitug.de>]
7367 *) Remove some legacy and erroneous uses of malloc, free instead of
7369 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7371 *) Make rsa_oaep_test return non-zero on error.
7372 [Ulf Moeller <ulf@fitug.de>]
7374 *) Add support for native Solaris shared libraries. Configure
7375 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7376 if someone would make that last step automatic.
7377 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7379 *) ctx_size was not built with the right compiler during "make links". Fixed.
7382 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7383 except NULL ciphers". This means the default cipher list will no longer
7384 enable NULL ciphers. They need to be specifically enabled e.g. with
7385 the string "DEFAULT:eNULL".
7388 *) Fix to RSA private encryption routines: if p < q then it would
7389 occasionally produce an invalid result. This will only happen with
7390 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7393 *) Be less restrictive and allow also `perl util/perlpath.pl
7394 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7395 because this way one can also use an interpreter named `perl5' (which is
7396 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7397 installed as `perl').
7398 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7400 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7401 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7403 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7404 advapi32.lib to Win32 build and change the pem test comparision
7405 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7406 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7407 and crypto/des/ede_cbcm_enc.c.
7410 *) DES quad checksum was broken on big-endian architectures. Fixed.
7413 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7414 Win32 test batch file so it (might) work again. The Win32 test batch file
7415 is horrible: I feel ill....
7418 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7419 in e_os.h. Audit of header files to check ANSI and non ANSI
7420 sections: 10 functions were absent from non ANSI section and not exported
7421 from Windows DLLs. Fixed up libeay.num for new functions.
7424 *) Make `openssl version' output lines consistent.
7425 [Ralf S. Engelschall]
7427 *) Fix Win32 symbol export lists for BIO functions: Added
7428 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7429 to ms/libeay{16,32}.def.
7430 [Ralf S. Engelschall]
7432 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7433 fine under Unix and passes some trivial tests I've now added. But the
7434 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7435 added to make sure no one expects that this stuff really works in the
7436 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7437 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7439 [Ralf S. Engelschall]
7441 *) Fix the generation of two part addresses in perl.
7442 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7444 *) Add config entry for Linux on MIPS.
7445 [John Tobey <jtobey@channel1.com>]
7447 *) Make links whenever Configure is run, unless we are on Windoze.
7450 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7451 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7455 *) Add a useful kludge to allow package maintainers to specify compiler and
7456 other platforms details on the command line without having to patch the
7457 Configure script everytime: One now can use ``perl Configure
7458 <id>:<details>'', i.e. platform ids are allowed to have details appended
7459 to them (seperated by colons). This is treated as there would be a static
7460 pre-configured entry in Configure's %table under key <id> with value
7461 <details> and ``perl Configure <id>'' is called. So, when you want to
7462 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7463 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7464 now, which overrides the FreeBSD-elf entry on-the-fly.
7465 [Ralf S. Engelschall]
7467 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7470 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7471 on the `perl Configure ...' command line. This way one can compile
7472 OpenSSL libraries with Position Independent Code (PIC) which is needed
7473 for linking it into DSOs.
7474 [Ralf S. Engelschall]
7476 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7480 *) Cleaned up the LICENSE document: The official contact for any license
7481 questions now is the OpenSSL core team under openssl-core@openssl.org.
7482 And add a paragraph about the dual-license situation to make sure people
7483 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7484 to the OpenSSL toolkit.
7485 [Ralf S. Engelschall]
7487 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7488 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7489 Additonally cleaned up the `make links' target: Remove unnecessary
7490 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7491 to speed processing and no longer clutter the display with confusing
7492 stuff. Instead only the actually done links are displayed.
7493 [Ralf S. Engelschall]
7495 *) Permit null encryption ciphersuites, used for authentication only. It used
7496 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7497 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7501 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7502 signed attributes when verifying signatures (this would break them),
7503 the detached data encoding was wrong and public keys obtained using
7504 X509_get_pubkey() weren't freed.
7507 *) Add text documentation for the BUFFER functions. Also added a work around
7508 to a Win95 console bug. This was triggered by the password read stuff: the
7509 last character typed gets carried over to the next fread(). If you were
7510 generating a new cert request using 'req' for example then the last
7511 character of the passphrase would be CR which would then enter the first
7515 *) Added the new `Includes OpenSSL Cryptography Software' button as
7516 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7517 button and can be used by applications based on OpenSSL to show the
7518 relationship to the OpenSSL project.
7519 [Ralf S. Engelschall]
7521 *) Remove confusing variables in function signatures in files
7522 ssl/ssl_lib.c and ssl/ssl.h.
7523 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7525 *) Don't install bss_file.c under PREFIX/include/
7526 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7528 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7529 functions that return function pointers and has support for NT specific
7530 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7531 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7532 unsigned to signed types: this was killing the Win32 compile.
7535 *) Add new certificate file to stack functions,
7536 SSL_add_dir_cert_subjects_to_stack() and
7537 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7538 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7539 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7540 This means that Apache-SSL and similar packages don't have to mess around
7541 to add as many CAs as they want to the preferred list.
7544 *) Experiment with doxygen documentation. Currently only partially applied to
7546 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7547 openssl.doxy as the configuration file.
7550 *) Get rid of remaining C++-style comments which strict C compilers hate.
7551 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7553 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7554 compiled in by default: it has problems with large keys.
7557 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7558 DH private keys and/or callback functions which directly correspond to
7559 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7560 is needed for applications which have to configure certificates on a
7561 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7563 For the RSA certificate situation is makes no difference, but
7564 for the DSA certificate situation this fixes the "no shared cipher"
7565 problem where the OpenSSL cipher selection procedure failed because the
7566 temporary keys were not overtaken from the context and the API provided
7567 no way to reconfigure them.
7568 The new functions now let applications reconfigure the stuff and they
7569 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7570 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7571 non-public-API function ssl_cert_instantiate() is used as a helper
7572 function and also to reduce code redundancy inside ssl_rsa.c.
7573 [Ralf S. Engelschall]
7575 *) Move s_server -dcert and -dkey options out of the undocumented feature
7576 area because they are useful for the DSA situation and should be
7577 recognized by the users.
7578 [Ralf S. Engelschall]
7580 *) Fix the cipher decision scheme for export ciphers: the export bits are
7581 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7582 SSL_EXP_MASK. So, the original variable has to be used instead of the
7583 already masked variable.
7584 [Richard Levitte <levitte@stacken.kth.se>]
7586 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7587 [Richard Levitte <levitte@stacken.kth.se>]
7589 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7590 from `int' to `unsigned int' because it's a length and initialized by
7591 EVP_DigestFinal() which expects an `unsigned int *'.
7592 [Richard Levitte <levitte@stacken.kth.se>]
7594 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7595 script. Instead use the usual Shell->Perl transition trick.
7596 [Ralf S. Engelschall]
7598 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7599 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7600 -noout -modulus' as it's already the case for `openssl rsa -noout
7601 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7602 currently the public key is printed (a decision which was already done by
7603 `openssl dsa -modulus' in the past) which serves a similar purpose.
7604 Additionally the NO_RSA no longer completely removes the whole -modulus
7605 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7607 [Ralf S. Engelschall]
7609 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7610 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7611 [Arne Ansper <arne@ats.cyber.ee>]
7613 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7614 to be added. Now both 'req' and 'ca' can use new objects defined in the
7618 *) Add cool BIO that does syslog (or event log on NT).
7619 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7621 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7622 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7623 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7624 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7627 *) Add preliminary config info for new extension code.
7630 *) Make RSA_NO_PADDING really use no padding.
7631 [Ulf Moeller <ulf@fitug.de>]
7633 *) Generate errors when private/public key check is done.
7636 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7637 for some CRL extensions and new objects added.
7640 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7641 key usage extension and fuller support for authority key id.
7644 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7645 padding method for RSA, which is recommended for new applications in PKCS
7646 #1 v2.0 (RFC 2437, October 1998).
7647 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7648 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7649 against Bleichbacher's attack on RSA.
7650 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7653 *) Updates to the new SSL compression code
7654 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7656 *) Fix so that the version number in the master secret, when passed
7657 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7658 (because the server will not accept higher), that the version number
7659 is 0x03,0x01, not 0x03,0x00
7660 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7662 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7663 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7664 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7667 *) Support for RAW extensions where an arbitrary extension can be
7668 created by including its DER encoding. See apps/openssl.cnf for
7672 *) Make sure latest Perl versions don't interpret some generated C array
7673 code as Perl array code in the crypto/err/err_genc.pl script.
7674 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7676 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7677 not many people have the assembler. Various Win32 compilation fixes and
7678 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7682 *) Modify configure script 'Configure' to automatically create crypto/date.h
7683 file under Win32 and also build pem.h from pem.org. New script
7684 util/mkfiles.pl to create the MINFO file on environments that can't do a
7685 'make files': perl util/mkfiles.pl >MINFO should work.
7688 *) Major rework of DES function declarations, in the pursuit of correctness
7689 and purity. As a result, many evil casts evaporated, and some weirdness,
7690 too. You may find this causes warnings in your code. Zapping your evil
7691 casts will probably fix them. Mostly.
7694 *) Fix for a typo in asn1.h. Bug fix to object creation script
7695 obj_dat.pl. It considered a zero in an object definition to mean
7696 "end of object": none of the objects in objects.h have any zeros
7697 so it wasn't spotted.
7698 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7700 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7701 Masking (CBCM). In the absence of test vectors, the best I have been able
7702 to do is check that the decrypt undoes the encrypt, so far. Send me test
7703 vectors if you have them.
7706 *) Correct calculation of key length for export ciphers (too much space was
7707 allocated for null ciphers). This has not been tested!
7710 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7711 message is now correct (it understands "crypto" and "ssl" on its
7712 command line). There is also now an "update" option. This will update
7713 the util/ssleay.num and util/libeay.num files with any new functions.
7715 perl util/mkdef.pl crypto ssl update
7716 it will update them.
7719 *) Overhauled the Perl interface (perl/*):
7720 - ported BN stuff to OpenSSL's different BN library
7721 - made the perl/ source tree CVS-aware
7722 - renamed the package from SSLeay to OpenSSL (the files still contain
7723 their history because I've copied them in the repository)
7724 - removed obsolete files (the test scripts will be replaced
7725 by better Test::Harness variants in the future)
7726 [Ralf S. Engelschall]
7728 *) First cut for a very conservative source tree cleanup:
7729 1. merge various obsolete readme texts into doc/ssleay.txt
7730 where we collect the old documents and readme texts.
7731 2. remove the first part of files where I'm already sure that we no
7732 longer need them because of three reasons: either they are just temporary
7733 files which were left by Eric or they are preserved original files where
7734 I've verified that the diff is also available in the CVS via "cvs diff
7735 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7736 the crypto/md/ stuff).
7737 [Ralf S. Engelschall]
7739 *) More extension code. Incomplete support for subject and issuer alt
7740 name, issuer and authority key id. Change the i2v function parameters
7741 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7742 what that's for :-) Fix to ASN1 macro which messed up
7743 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7746 *) Preliminary support for ENUMERATED type. This is largely copied from the
7750 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7751 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7753 *) Make sure `make rehash' target really finds the `openssl' program.
7754 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7756 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7757 like to hear about it if this slows down other processors.
7760 *) Add CygWin32 platform information to Configure script.
7761 [Alan Batie <batie@aahz.jf.intel.com>]
7763 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7764 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7766 *) New program nseq to manipulate netscape certificate sequences
7769 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7773 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7774 but the BN code had some problems that would cause failures when
7775 doing certificate verification and some other functions.
7776 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7778 *) Add ASN1 and PEM code to support netscape certificate sequences.
7781 *) Add ASN1 and PEM code to support netscape certificate sequences.
7784 *) Add several PKIX and private extended key usage OIDs.
7787 *) Modify the 'ca' program to handle the new extension code. Modify
7788 openssl.cnf for new extension format, add comments.
7791 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7792 and add a sample to openssl.cnf so req -x509 now adds appropriate
7796 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7797 error code, add initial support to X509_print() and x509 application.
7800 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7801 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7802 stuff is currently isolated and isn't even compiled yet.
7805 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7806 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7807 Removed the versions check from X509 routines when loading extensions:
7808 this allows certain broken certificates that don't set the version
7809 properly to be processed.
7812 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7813 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7814 can still be regenerated with "make depend".
7817 *) Spelling mistake in C version of CAST-128.
7818 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7820 *) Changes to the error generation code. The perl script err-code.pl
7821 now reads in the old error codes and retains the old numbers, only
7822 adding new ones if necessary. It also only changes the .err files if new
7823 codes are added. The makefiles have been modified to only insert errors
7824 when needed (to avoid needlessly modifying header files). This is done
7825 by only inserting errors if the .err file is newer than the auto generated
7826 C file. To rebuild all the error codes from scratch (the old behaviour)
7827 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7828 or delete all the .err files.
7831 *) CAST-128 was incorrectly implemented for short keys. The C version has
7832 been fixed, but is untested. The assembler versions are also fixed, but
7833 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7834 to regenerate it if needed.
7835 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7836 Hagino <itojun@kame.net>]
7838 *) File was opened incorrectly in randfile.c.
7839 [Ulf Möller <ulf@fitug.de>]
7841 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7842 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7843 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7844 al: it's just almost always a UTCTime. Note this patch adds new error
7845 codes so do a "make errors" if there are problems.
7848 *) Correct Linux 1 recognition in config.
7849 [Ulf Möller <ulf@fitug.de>]
7851 *) Remove pointless MD5 hash when using DSA keys in ca.
7852 [Anonymous <nobody@replay.com>]
7854 *) Generate an error if given an empty string as a cert directory. Also
7855 generate an error if handed NULL (previously returned 0 to indicate an
7856 error, but didn't set one).
7857 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7859 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7862 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7863 parameters. This was causing a warning which killed off the Win32 compile.
7866 *) Remove C++ style comments from crypto/bn/bn_local.h.
7867 [Neil Costigan <neil.costigan@celocom.com>]
7869 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7870 based on a text string, looking up short and long names and finally
7871 "dot" format. The "dot" format stuff didn't work. Added new function
7872 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7873 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7874 OID is not part of the table.
7877 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7878 X509_LOOKUP_by_alias().
7881 *) Sort openssl functions by name.
7884 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7885 encryption from sample DSA keys (in case anyone is interested the password
7889 *) Make _all_ *_free functions accept a NULL pointer.
7890 [Frans Heymans <fheymans@isaserver.be>]
7892 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7894 [Anonymous <nobody@replay.com>]
7896 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7897 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7899 *) Don't blow it for numeric -newkey arguments to apps/req.
7900 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7902 *) Temp key "for export" tests were wrong in s3_srvr.c.
7903 [Anonymous <nobody@replay.com>]
7905 *) Add prototype for temp key callback functions
7906 SSL_CTX_set_tmp_{rsa,dh}_callback().
7909 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7910 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7913 *) X509_name_add_entry() freed the wrong thing after an error.
7914 [Arne Ansper <arne@ats.cyber.ee>]
7916 *) rsa_eay.c would attempt to free a NULL context.
7917 [Arne Ansper <arne@ats.cyber.ee>]
7919 *) BIO_s_socket() had a broken should_retry() on Windoze.
7920 [Arne Ansper <arne@ats.cyber.ee>]
7922 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7923 [Arne Ansper <arne@ats.cyber.ee>]
7925 *) Make sure the already existing X509_STORE->depth variable is initialized
7926 in X509_STORE_new(), but document the fact that this variable is still
7927 unused in the certificate verification process.
7928 [Ralf S. Engelschall]
7930 *) Fix the various library and apps files to free up pkeys obtained from
7931 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7934 *) Fix reference counting in X509_PUBKEY_get(). This makes
7935 demos/maurice/example2.c work, amongst others, probably.
7936 [Steve Henson and Ben Laurie]
7938 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7939 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7940 are no longer created. This way we have a single and consistent command
7941 line interface `openssl <command>', similar to `cvs <command>'.
7942 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7944 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7945 BIT STRING wrapper always have zero unused bits.
7948 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7951 *) Make the top-level INSTALL documentation easier to understand.
7954 *) Makefiles updated to exit if an error occurs in a sub-directory
7955 make (including if user presses ^C) [Paul Sutton]
7957 *) Make Montgomery context stuff explicit in RSA data structure.
7960 *) Fix build order of pem and err to allow for generated pem.h.
7963 *) Fix renumbering bug in X509_NAME_delete_entry().
7966 *) Enhanced the err-ins.pl script so it makes the error library number
7967 global and can add a library name. This is needed for external ASN1 and
7968 other error libraries.
7971 *) Fixed sk_insert which never worked properly.
7974 *) Fix ASN1 macros so they can handle indefinite length construted
7975 EXPLICIT tags. Some non standard certificates use these: they can now
7979 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7980 into a single doc/ssleay.txt bundle. This way the information is still
7981 preserved but no longer messes up this directory. Now it's new room for
7982 the new set of documenation files.
7983 [Ralf S. Engelschall]
7985 *) SETs were incorrectly DER encoded. This was a major pain, because they
7986 shared code with SEQUENCEs, which aren't coded the same. This means that
7987 almost everything to do with SETs or SEQUENCEs has either changed name or
7988 number of arguments.
7989 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7991 *) Fix test data to work with the above.
7994 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7995 was already fixed by Eric for 0.9.1 it seems.
7996 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7998 *) Autodetect FreeBSD3.
8001 *) Fix various bugs in Configure. This affects the following platforms:
8005 unixware-2.0-pentium
8009 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8010 before they are needed.
8013 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8017 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8019 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8020 changed SSLeay to OpenSSL in version strings.
8021 [Ralf S. Engelschall]
8023 *) Some fixups to the top-level documents.
8026 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8027 because the symlink to include/ was missing.
8028 [Ralf S. Engelschall]
8030 *) Incorporated the popular no-RSA/DSA-only patches
8031 which allow to compile a RSA-free SSLeay.
8032 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8034 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8035 when "ssleay" is still not found.
8036 [Ralf S. Engelschall]
8038 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8039 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8041 *) Updated the README file.
8042 [Ralf S. Engelschall]
8044 *) Added various .cvsignore files in the CVS repository subdirs
8045 to make a "cvs update" really silent.
8046 [Ralf S. Engelschall]
8048 *) Recompiled the error-definition header files and added
8049 missing symbols to the Win32 linker tables.
8050 [Ralf S. Engelschall]
8052 *) Cleaned up the top-level documents;
8053 o new files: CHANGES and LICENSE
8054 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8055 o merged COPYRIGHT into LICENSE
8056 o removed obsolete TODO file
8057 o renamed MICROSOFT to INSTALL.W32
8058 [Ralf S. Engelschall]
8060 *) Removed dummy files from the 0.9.1b source tree:
8061 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8062 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8063 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8064 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8065 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8066 [Ralf S. Engelschall]
8068 *) Added various platform portability fixes.
8071 *) The Genesis of the OpenSSL rpject:
8072 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8073 Young and Tim J. Hudson created while they were working for C2Net until
8075 [The OpenSSL Project]
8078 Changes between 0.9.0b and 0.9.1b [not released]
8080 *) Updated a few CA certificates under certs/
8083 *) Changed some BIGNUM api stuff.
8086 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8087 DGUX x86, Linux Alpha, etc.
8090 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8091 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8095 *) Add -strparse option to asn1pars program which parses nested
8097 [Dr Stephen Henson <shenson@bigfoot.com>]
8099 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8102 *) DSA fix for "ca" program.
8105 *) Added "-genkey" option to "dsaparam" program.
8108 *) Added RIPE MD160 (rmd160) message digest.
8111 *) Added -a (all) option to "ssleay version" command.
8114 *) Added PLATFORM define which is the id given to Configure.
8117 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8120 *) Extended the ASN.1 parser routines.
8123 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8126 *) Added a BN_CTX to the BN library.
8129 *) Fixed the weak key values in DES library
8132 *) Changed API in EVP library for cipher aliases.
8135 *) Added support for RC2/64bit cipher.
8138 *) Converted the lhash library to the crypto/mem.c functions.
8141 *) Added more recognized ASN.1 object ids.
8144 *) Added more RSA padding checks for SSL/TLS.
8147 *) Added BIO proxy/filter functionality.
8150 *) Added extra_certs to SSL_CTX which can be used
8151 send extra CA certificates to the client in the CA cert chain sending
8152 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8155 *) Now Fortezza is denied in the authentication phase because
8156 this is key exchange mechanism is not supported by SSLeay at all.
8159 *) Additional PKCS1 checks.
8162 *) Support the string "TLSv1" for all TLS v1 ciphers.
8165 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8166 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8169 *) Fixed a few memory leaks.
8172 *) Fixed various code and comment typos.
8175 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8176 bytes sent in the client random.
8177 [Edward Bishop <ebishop@spyglass.com>]