5 Changes between 0.9.8i and 0.9.8j [xx XXX xxxx]
9 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
11 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
12 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
15 *) The fix in 0.9.8c that supposedly got rid of unsafe
16 double-checked locking was incomplete for RSA blinding,
17 addressing just one layer of what turns out to have been
18 doubly unsafe triple-checked locking.
20 So now fix this for real by retiring the MONT_HELPER macro
21 in crypto/rsa/rsa_eay.c.
23 [Bodo Moeller; problem pointed out by Marius Schilder]
25 *) Various precautionary measures:
27 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
29 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
30 (NB: This would require knowledge of the secret session ticket key
31 to exploit, in which case you'd be SOL either way.)
33 - Change bn_nist.c so that it will properly handle input BIGNUMs
34 outside the expected range.
36 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
39 [Neel Mehta, Bodo Moeller]
41 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
42 the load fails. Useful for distros.
43 [Ben Laurie and the FreeBSD team]
45 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
48 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
51 *) Expand ENGINE to support engine supplied SSL client certificate functions.
53 This work was sponsored by Logica.
56 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
57 keystores. Support for SSL/TLS client authentication too.
58 Not compiled unless enable-capieng specified to Configure.
60 This work was sponsored by Logica.
63 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
64 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
65 attribute creation routines such as certifcate requests and PKCS#12
69 Changes between 0.9.8g and 0.9.8h [28 May 2008]
71 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
72 handshake which could lead to a cilent crash as found using the
73 Codenomicon TLS test suite (CVE-2008-1672)
74 [Steve Henson, Mark Cox]
76 *) Fix double free in TLS server name extensions which could lead to
77 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
80 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
82 Clear the error queue to ensure that error entries left from
83 older function calls do not interfere with the correct operation.
84 [Lutz Jaenicke, Erik de Castro Lopo]
86 *) Remove root CA certificates of commercial CAs:
88 The OpenSSL project does not recommend any specific CA and does not
89 have any policy with respect to including or excluding any CA.
90 Therefore it does not make any sense to ship an arbitrary selection
91 of root CA certificates with the OpenSSL software.
94 *) RSA OAEP patches to fix two separate invalid memory reads.
95 The first one involves inputs when 'lzero' is greater than
96 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
97 before the beginning of from). The second one involves inputs where
98 the 'db' section contains nothing but zeroes (there is a one-byte
99 invalid read after the end of 'db').
100 [Ivan Nestlerode <inestlerode@us.ibm.com>]
102 *) Partial backport from 0.9.9-dev:
104 Introduce bn_mul_mont (dedicated Montgomery multiplication
105 procedure) as a candidate for BIGNUM assembler implementation.
106 While 0.9.9-dev uses assembler for various architectures, only
107 x86_64 is available by default here in the 0.9.8 branch, and
108 32-bit x86 is available through a compile-time setting.
110 To try the 32-bit x86 assembler implementation, use Configure
111 option "enable-montasm" (which exists only for this backport).
113 As "enable-montasm" for 32-bit x86 disclaims code stability
114 anyway, in this constellation we activate additional code
115 backported from 0.9.9-dev for further performance improvements,
116 namely BN_from_montgomery_word. (To enable this otherwise,
117 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
119 [Andy Polyakov (backport partially by Bodo Moeller)]
121 *) Add TLS session ticket callback. This allows an application to set
122 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
123 values. This is useful for key rollover for example where several key
124 sets may exist with different names.
127 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
128 This was broken until now in 0.9.8 releases, such that the only way
129 a registered ENGINE could be used (assuming it initialises
130 successfully on the host) was to explicitly set it as the default
131 for the relevant algorithms. This is in contradiction with 0.9.7
132 behaviour and the documentation. With this fix, when an ENGINE is
133 registered into a given algorithm's table of implementations, the
134 'uptodate' flag is reset so that auto-discovery will be used next
135 time a new context for that algorithm attempts to select an
137 [Ian Lister (tweaked by Geoff Thorpe)]
139 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
140 implemention in the following ways:
142 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
145 Lack of BER streaming support means one pass streaming processing is
146 only supported if data is detached: setting the streaming flag is
147 ignored for embedded content.
149 CMS support is disabled by default and must be explicitly enabled
150 with the enable-cms configuration option.
153 *) Update the GMP engine glue to do direct copies between BIGNUM and
154 mpz_t when openssl and GMP use the same limb size. Otherwise the
155 existing "conversion via a text string export" trick is still used.
156 [Paul Sheer <paulsheer@gmail.com>]
158 *) Zlib compression BIO. This is a filter BIO which compressed and
159 uncompresses any data passed through it.
162 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
163 RFC3394 compatible AES key wrapping.
166 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
167 sets string data without copying. X509_ALGOR_set0() and
168 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
169 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
170 from an X509_ATTRIBUTE structure optionally checking it occurs only
171 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
175 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
176 to get the expected BN_FLG_CONSTTIME behavior.
177 [Bodo Moeller (Google)]
181 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
182 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
183 - added some more tests to do_tests.pl
184 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
185 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
186 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
187 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
188 - various changes to netware.pl to enable gcc-cross builds on Win32
190 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
191 - various changes to fix missing prototype warnings
192 - fixed x86nasm.pl to create correct asm files for NASM COFF output
193 - added AES, WHIRLPOOL and CPUID assembler code to build files
194 - added missing AES assembler make rules to mk1mf.pl
195 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
196 [Guenter Knauf <eflash@gmx.net>]
198 *) Implement certificate status request TLS extension defined in RFC3546.
199 A client can set the appropriate parameters and receive the encoded
200 OCSP response via a callback. A server can query the supplied parameters
201 and set the encoded OCSP response in the callback. Add simplified examples
202 to s_client and s_server.
205 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
208 + Binary incompatibility of ssl_ctx_st structure
209 + DTLS interoperation with non-compliant servers
210 + Don't call get_session_cb() without proposed session
211 + Fix ia64 assembler code
212 [Andy Polyakov, Steve Henson]
214 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
216 *) DTLS Handshake overhaul. There were longstanding issues with
217 OpenSSL DTLS implementation, which were making it impossible for
218 RFC 4347 compliant client to communicate with OpenSSL server.
219 Unfortunately just fixing these incompatibilities would "cut off"
220 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
221 server keeps tolerating non RFC compliant syntax. The opposite is
222 not true, 0.9.8f client can not communicate with earlier server.
223 This update even addresses CVE-2007-4995.
226 *) Changes to avoid need for function casts in OpenSSL: some compilers
227 (gcc 4.2 and later) reject their use.
228 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
231 *) Add RFC4507 support to OpenSSL. This includes the corrections in
232 RFC4507bis. The encrypted ticket format is an encrypted encoded
233 SSL_SESSION structure, that way new session features are automatically
236 If a client application caches session in an SSL_SESSION structure
237 support is transparent because tickets are now stored in the encoded
240 The SSL_CTX structure automatically generates keys for ticket
241 protection in servers so again support should be possible
242 with no application modification.
244 If a client or server wishes to disable RFC4507 support then the option
245 SSL_OP_NO_TICKET can be set.
247 Add a TLS extension debugging callback to allow the contents of any client
248 or server extensions to be examined.
250 This work was sponsored by Google.
253 *) Add initial support for TLS extensions, specifically for the server_name
254 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
255 have new members for a host name. The SSL data structure has an
256 additional member SSL_CTX *initial_ctx so that new sessions can be
257 stored in that context to allow for session resumption, even after the
258 SSL has been switched to a new SSL_CTX in reaction to a client's
259 server_name extension.
261 New functions (subject to change):
264 SSL_get_servername_type()
267 New CTRL codes and macros (subject to change):
269 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
270 - SSL_CTX_set_tlsext_servername_callback()
271 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
272 - SSL_CTX_set_tlsext_servername_arg()
273 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
275 openssl s_client has a new '-servername ...' option.
277 openssl s_server has new options '-servername_host ...', '-cert2 ...',
278 '-key2 ...', '-servername_fatal' (subject to change). This allows
279 testing the HostName extension for a specific single host name ('-cert'
280 and '-key' remain fallbacks for handshakes without HostName
281 negotiation). If the unrecogninzed_name alert has to be sent, this by
282 default is a warning; it becomes fatal with the '-servername_fatal'
285 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
287 *) Add AES and SSE2 assembly language support to VC++ build.
290 *) Mitigate attack on final subtraction in Montgomery reduction.
293 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
294 (which previously caused an internal error).
297 *) Squeeze another 10% out of IGE mode when in != out.
300 *) AES IGE mode speedup.
301 [Dean Gaudet (Google)]
303 *) Add the Korean symmetric 128-bit cipher SEED (see
304 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
305 add SEED ciphersuites from RFC 4162:
307 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
308 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
309 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
310 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
312 To minimize changes between patchlevels in the OpenSSL 0.9.8
313 series, SEED remains excluded from compilation unless OpenSSL
314 is configured with 'enable-seed'.
317 *) Mitigate branch prediction attacks, which can be practical if a
318 single processor is shared, allowing a spy process to extract
319 information. For detailed background information, see
320 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
321 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
322 and Necessary Software Countermeasures"). The core of the change
323 are new versions BN_div_no_branch() and
324 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
325 respectively, which are slower, but avoid the security-relevant
326 conditional branches. These are automatically called by BN_div()
327 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
328 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
329 remove a conditional branch.
331 BN_FLG_CONSTTIME is the new name for the previous
332 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
333 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
334 in the exponent causes BN_mod_exp_mont() to use the alternative
335 implementation in BN_mod_exp_mont_consttime().) The old name
336 remains as a deprecated alias.
338 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
339 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
340 constant-time implementations for more than just exponentiation.
341 Here too the old name is kept as a deprecated alias.
343 BN_BLINDING_new() will now use BN_dup() for the modulus so that
344 the BN_BLINDING structure gets an independent copy of the
345 modulus. This means that the previous "BIGNUM *m" argument to
346 BN_BLINDING_new() and to BN_BLINDING_create_param() now
347 essentially becomes "const BIGNUM *m", although we can't actually
348 change this in the header file before 0.9.9. It allows
349 RSA_setup_blinding() to use BN_with_flags() on the modulus to
350 enable BN_FLG_CONSTTIME.
352 [Matthew D Wood (Intel Corp)]
354 *) In the SSL/TLS server implementation, be strict about session ID
355 context matching (which matters if an application uses a single
356 external cache for different purposes). Previously,
357 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
358 set. This did ensure strict client verification, but meant that,
359 with applications using a single external cache for quite
360 different requirements, clients could circumvent ciphersuite
361 restrictions for a given session ID context by starting a session
362 in a different context.
365 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
366 a ciphersuite string such as "DEFAULT:RSA" cannot enable
367 authentication-only ciphersuites.
370 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
371 not complete and could lead to a possible single byte overflow
372 (CVE-2007-5135) [Ben Laurie]
374 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
376 *) Since AES128 and AES256 (and similarly Camellia128 and
377 Camellia256) share a single mask bit in the logic of
378 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
379 kludge to work properly if AES128 is available and AES256 isn't
380 (or if Camellia128 is available and Camellia256 isn't).
383 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
384 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
385 When a point or a seed is encoded in a BIT STRING, we need to
386 prevent the removal of trailing zero bits to get the proper DER
387 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
388 of a NamedBitList, for which trailing 0 bits need to be removed.)
391 *) Have SSL/TLS server implementation tolerate "mismatched" record
392 protocol version while receiving ClientHello even if the
393 ClientHello is fragmented. (The server can't insist on the
394 particular protocol version it has chosen before the ServerHello
395 message has informed the client about his choice.)
398 *) Add RFC 3779 support.
399 [Rob Austein for ARIN, Ben Laurie]
401 *) Load error codes if they are not already present instead of using a
402 static variable. This allows them to be cleanly unloaded and reloaded.
403 Improve header file function name parsing.
406 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
407 or CAPABILITY handshake as required by RFCs.
410 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
412 *) Introduce limits to prevent malicious keys being able to
413 cause a denial of service. (CVE-2006-2940)
414 [Steve Henson, Bodo Moeller]
416 *) Fix ASN.1 parsing of certain invalid structures that can result
417 in a denial of service. (CVE-2006-2937) [Steve Henson]
419 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
420 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
422 *) Fix SSL client code which could crash if connecting to a
423 malicious SSLv2 server. (CVE-2006-4343)
424 [Tavis Ormandy and Will Drewry, Google Security Team]
426 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
427 match only those. Before that, "AES256-SHA" would be interpreted
428 as a pattern and match "AES128-SHA" too (since AES128-SHA got
429 the same strength classification in 0.9.7h) as we currently only
430 have a single AES bit in the ciphersuite description bitmap.
431 That change, however, also applied to ciphersuite strings such as
432 "RC4-MD5" that intentionally matched multiple ciphersuites --
433 namely, SSL 2.0 ciphersuites in addition to the more common ones
434 from SSL 3.0/TLS 1.0.
436 So we change the selection algorithm again: Naming an explicit
437 ciphersuite selects this one ciphersuite, and any other similar
438 ciphersuite (same bitmap) from *other* protocol versions.
439 Thus, "RC4-MD5" again will properly select both the SSL 2.0
440 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
442 Since SSL 2.0 does not have any ciphersuites for which the
443 128/256 bit distinction would be relevant, this works for now.
444 The proper fix will be to use different bits for AES128 and
445 AES256, which would have avoided the problems from the beginning;
446 however, bits are scarce, so we can only do this in a new release
447 (not just a patchlevel) when we can change the SSL_CIPHER
448 definition to split the single 'unsigned long mask' bitmap into
449 multiple values to extend the available space.
453 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
455 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
456 (CVE-2006-4339) [Ben Laurie and Google Security Team]
458 *) Add AES IGE and biIGE modes.
461 *) Change the Unix randomness entropy gathering to use poll() when
462 possible instead of select(), since the latter has some
463 undesirable limitations.
464 [Darryl Miles via Richard Levitte and Bodo Moeller]
466 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
467 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
468 cannot be implicitly activated as part of, e.g., the "AES" alias.
469 However, please upgrade to OpenSSL 0.9.9[-dev] for
470 non-experimental use of the ECC ciphersuites to get TLS extension
471 support, which is required for curve and point format negotiation
472 to avoid potential handshake problems.
475 *) Disable rogue ciphersuites:
477 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
478 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
479 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
481 The latter two were purportedly from
482 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
485 Also deactivate the remaining ciphersuites from
486 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
487 unofficial, and the ID has long expired.
490 *) Fix RSA blinding Heisenbug (problems sometimes occured on
491 dual-core machines) and other potential thread-safety issues.
494 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
495 versions), which is now available for royalty-free use
496 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
497 Also, add Camellia TLS ciphersuites from RFC 4132.
499 To minimize changes between patchlevels in the OpenSSL 0.9.8
500 series, Camellia remains excluded from compilation unless OpenSSL
501 is configured with 'enable-camellia'.
504 *) Disable the padding bug check when compression is in use. The padding
505 bug check assumes the first packet is of even length, this is not
506 necessarily true if compresssion is enabled and can result in false
507 positives causing handshake failure. The actual bug test is ancient
508 code so it is hoped that implementations will either have fixed it by
509 now or any which still have the bug do not support compression.
512 Changes between 0.9.8a and 0.9.8b [04 May 2006]
514 *) When applying a cipher rule check to see if string match is an explicit
515 cipher suite and only match that one cipher suite if it is.
518 *) Link in manifests for VC++ if needed.
519 [Austin Ziegler <halostatue@gmail.com>]
521 *) Update support for ECC-based TLS ciphersuites according to
522 draft-ietf-tls-ecc-12.txt with proposed changes (but without
523 TLS extensions, which are supported starting with the 0.9.9
524 branch, not in the OpenSSL 0.9.8 branch).
527 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
528 opaque EVP_CIPHER_CTX handling.
531 *) Fixes and enhancements to zlib compression code. We now only use
532 "zlib1.dll" and use the default __cdecl calling convention on Win32
533 to conform with the standards mentioned here:
534 http://www.zlib.net/DLL_FAQ.txt
535 Static zlib linking now works on Windows and the new --with-zlib-include
536 --with-zlib-lib options to Configure can be used to supply the location
537 of the headers and library. Gracefully handle case where zlib library
541 *) Several fixes and enhancements to the OID generation code. The old code
542 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
543 handle numbers larger than ULONG_MAX, truncated printing and had a
544 non standard OBJ_obj2txt() behaviour.
547 *) Add support for building of engines under engine/ as shared libraries
548 under VC++ build system.
551 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
552 Hopefully, we will not see any false combination of paths any more.
555 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
557 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
558 (part of SSL_OP_ALL). This option used to disable the
559 countermeasure against man-in-the-middle protocol-version
560 rollback in the SSL 2.0 server implementation, which is a bad
561 idea. (CVE-2005-2969)
563 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
564 for Information Security, National Institute of Advanced Industrial
565 Science and Technology [AIST], Japan)]
567 *) Add two function to clear and return the verify parameter flags.
570 *) Keep cipherlists sorted in the source instead of sorting them at
571 runtime, thus removing the need for a lock.
574 *) Avoid some small subgroup attacks in Diffie-Hellman.
575 [Nick Mathewson and Ben Laurie]
577 *) Add functions for well-known primes.
580 *) Extended Windows CE support.
581 [Satoshi Nakamura and Andy Polyakov]
583 *) Initialize SSL_METHOD structures at compile time instead of during
584 runtime, thus removing the need for a lock.
587 *) Make PKCS7_decrypt() work even if no certificate is supplied by
588 attempting to decrypt each encrypted key in turn. Add support to
592 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
594 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
597 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
600 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
601 key into the same file any more.
604 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
607 *) Add -utf8 command line and config file option to 'ca'.
608 [Stefan <stf@udoma.org]
610 *) Removed the macro des_crypt(), as it seems to conflict with some
611 libraries. Use DES_crypt().
614 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
615 involves renaming the source and generated shared-libs for
616 both. The engines will accept the corrected or legacy ids
617 ('ncipher' and '4758_cca' respectively) when binding. NB,
618 this only applies when building 'shared'.
619 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
621 *) Add attribute functions to EVP_PKEY structure. Modify
622 PKCS12_create() to recognize a CSP name attribute and
623 use it. Make -CSP option work again in pkcs12 utility.
626 *) Add new functionality to the bn blinding code:
627 - automatic re-creation of the BN_BLINDING parameters after
628 a fixed number of uses (currently 32)
629 - add new function for parameter creation
630 - introduce flags to control the update behaviour of the
631 BN_BLINDING parameters
632 - hide BN_BLINDING structure
633 Add a second BN_BLINDING slot to the RSA structure to improve
634 performance when a single RSA object is shared among several
638 *) Add support for DTLS.
639 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
641 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
642 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
645 *) Remove buggy and incompletet DH cert support from
646 ssl/ssl_rsa.c and ssl/s3_both.c
649 *) Use SHA-1 instead of MD5 as the default digest algorithm for
650 the apps/openssl applications.
653 *) Compile clean with "-Wall -Wmissing-prototypes
654 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
655 DEBUG_SAFESTACK must also be set.
658 *) Change ./Configure so that certain algorithms can be disabled by default.
659 The new counterpiece to "no-xxx" is "enable-xxx".
661 The patented RC5 and MDC2 algorithms will now be disabled unless
662 "enable-rc5" and "enable-mdc2", respectively, are specified.
664 (IDEA remains enabled despite being patented. This is because IDEA
665 is frequently required for interoperability, and there is no license
666 fee for non-commercial use. As before, "no-idea" can be used to
667 avoid this algorithm.)
671 *) Add processing of proxy certificates (see RFC 3820). This work was
672 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
673 EGEE (Enabling Grids for E-science in Europe).
676 *) RC4 performance overhaul on modern architectures/implementations, such
677 as Intel P4, IA-64 and AMD64.
680 *) New utility extract-section.pl. This can be used specify an alternative
681 section number in a pod file instead of having to treat each file as
682 a separate case in Makefile. This can be done by adding two lines to the
685 =for comment openssl_section:XXX
687 The blank line is mandatory.
691 *) New arguments -certform, -keyform and -pass for s_client and s_server
692 to allow alternative format key and certificate files and passphrase
696 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
697 update associated structures and add various utility functions.
699 Add new policy related verify parameters, include policy checking in
700 standard verify code. Enhance 'smime' application with extra parameters
701 to support policy checking and print out.
704 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
705 Nehemiah processors. These extensions support AES encryption in hardware
706 as well as RNG (though RNG support is currently disabled).
707 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
709 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
712 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
713 [Andy Polyakov and a number of other people]
715 *) Improved PowerPC platform support. Most notably BIGNUM assembler
716 implementation contributed by IBM.
717 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
719 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
720 exponent rather than 'unsigned long'. There is a corresponding change to
721 the new 'rsa_keygen' element of the RSA_METHOD structure.
722 [Jelte Jansen, Geoff Thorpe]
724 *) Functionality for creating the initial serial number file is now
725 moved from CA.pl to the 'ca' utility with a new option -create_serial.
727 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
728 number file to 1, which is bound to cause problems. To avoid
729 the problems while respecting compatibility between different 0.9.7
730 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
731 CA.pl for serial number initialization. With the new release 0.9.8,
732 we can fix the problem directly in the 'ca' utility.)
735 *) Reduced header interdepencies by declaring more opaque objects in
736 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
737 give fewer recursive includes, which could break lazy source code - so
738 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
739 developers should define this symbol when building and using openssl to
740 ensure they track the recommended behaviour, interfaces, [etc], but
741 backwards-compatible behaviour prevails when this isn't defined.
744 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
747 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
748 This will generate a random key of the appropriate length based on the
749 cipher context. The EVP_CIPHER can provide its own random key generation
750 routine to support keys of a specific form. This is used in the des and
751 3des routines to generate a key of the correct parity. Update S/MIME
752 code to use new functions and hence generate correct parity DES keys.
753 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
754 valid (weak or incorrect parity).
757 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
758 as looking them up. This is useful when the verified structure may contain
759 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
760 present unless the new PKCS7_NO_CRL flag is asserted.
763 *) Extend ASN1 oid configuration module. It now additionally accepts the
766 shortName = some long name, 1.2.3.4
769 *) Reimplemented the BN_CTX implementation. There is now no more static
770 limitation on the number of variables it can handle nor the depth of the
771 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
772 information can now expand as required, and rather than having a single
773 static array of bignums, BN_CTX now uses a linked-list of such arrays
774 allowing it to expand on demand whilst maintaining the usefulness of
778 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
779 to allow all RSA operations to function using a single BN_CTX.
782 *) Preliminary support for certificate policy evaluation and checking. This
783 is initially intended to pass the tests outlined in "Conformance Testing
784 of Relying Party Client Certificate Path Processing Logic" v1.07.
787 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
788 remained unused and not that useful. A variety of other little bignum
789 tweaks and fixes have also been made continuing on from the audit (see
793 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
794 associated ASN1, EVP and SSL functions and old ASN1 macros.
797 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
798 and this should never fail. So the return value from the use of
799 BN_set_word() (which can fail due to needless expansion) is now deprecated;
800 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
803 *) BN_CTX_get() should return zero-valued bignums, providing the same
804 initialised value as BN_new().
805 [Geoff Thorpe, suggested by Ulf Möller]
807 *) Support for inhibitAnyPolicy certificate extension.
810 *) An audit of the BIGNUM code is underway, for which debugging code is
811 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
812 is considered valid when processing BIGNUMs, and causes execution to
813 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
814 further steps are taken to deliberately pollute unused data in BIGNUM
815 structures to try and expose faulty code further on. For now, openssl will
816 (in its default mode of operation) continue to tolerate the inconsistent
817 forms that it has tolerated in the past, but authors and packagers should
818 consider trying openssl and their own applications when compiled with
819 these debugging symbols defined. It will help highlight potential bugs in
820 their own code, and will improve the test coverage for OpenSSL itself. At
821 some point, these tighter rules will become openssl's default to improve
822 maintainability, though the assert()s and other overheads will remain only
823 in debugging configurations. See bn.h for more details.
824 [Geoff Thorpe, Nils Larsch, Ulf Möller]
826 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
827 that can only be obtained through BN_CTX_new() (which implicitly
828 initialises it). The presence of this function only made it possible
829 to overwrite an existing structure (and cause memory leaks).
832 *) Because of the callback-based approach for implementing LHASH as a
833 template type, lh_insert() adds opaque objects to hash-tables and
834 lh_doall() or lh_doall_arg() are typically used with a destructor callback
835 to clean up those corresponding objects before destroying the hash table
836 (and losing the object pointers). So some over-zealous constifications in
837 LHASH have been relaxed so that lh_insert() does not take (nor store) the
838 objects as "const" and the lh_doall[_arg] callback wrappers are not
839 prototyped to have "const" restrictions on the object pointers they are
840 given (and so aren't required to cast them away any more).
843 *) The tmdiff.h API was so ugly and minimal that our own timing utility
844 (speed) prefers to use its own implementation. The two implementations
845 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
846 its object type properly exposed (MS_TM) instead of casting to/from "char
847 *". This may still change yet if someone realises MS_TM and "ms_time_***"
848 aren't necessarily the greatest nomenclatures - but this is what was used
849 internally to the implementation so I've used that for now.
852 *) Ensure that deprecated functions do not get compiled when
853 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
854 the self-tests were still using deprecated key-generation functions so
855 these have been updated also.
858 *) Reorganise PKCS#7 code to separate the digest location functionality
859 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
860 New function PKCS7_set_digest() to set the digest type for PKCS#7
861 digestedData type. Add additional code to correctly generate the
862 digestedData type and add support for this type in PKCS7 initialization
866 *) New function PKCS7_set0_type_other() this initializes a PKCS7
867 structure of type "other".
870 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
871 sure the loop does correctly stop and breaking ("division by zero")
872 modulus operations are not performed. The (pre-generated) prime
873 table crypto/bn/bn_prime.h was already correct, but it could not be
874 re-generated on some platforms because of the "division by zero"
875 situation in the script.
876 [Ralf S. Engelschall]
878 *) Update support for ECC-based TLS ciphersuites according to
879 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
880 SHA-1 now is only used for "small" curves (where the
881 representation of a field element takes up to 24 bytes); for
882 larger curves, the field element resulting from ECDH is directly
883 used as premaster secret.
884 [Douglas Stebila (Sun Microsystems Laboratories)]
886 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
887 curve secp160r1 to the tests.
888 [Douglas Stebila (Sun Microsystems Laboratories)]
890 *) Add the possibility to load symbols globally with DSO.
891 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
893 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
894 control of the error stack.
897 *) Add support for STORE in ENGINE.
900 *) Add the STORE type. The intention is to provide a common interface
901 to certificate and key stores, be they simple file-based stores, or
902 HSM-type store, or LDAP stores, or...
903 NOTE: The code is currently UNTESTED and isn't really used anywhere.
906 *) Add a generic structure called OPENSSL_ITEM. This can be used to
907 pass a list of arguments to any function as well as provide a way
908 for a function to pass data back to the caller.
911 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
912 works like BUF_strdup() but can be used to duplicate a portion of
913 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
917 *) Add the function sk_find_ex() which works like sk_find(), but will
918 return an index to an element even if an exact match couldn't be
919 found. The index is guaranteed to point at the element where the
920 searched-for key would be inserted to preserve sorting order.
923 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
924 takes an extra flags argument for optional functionality. Currently,
925 the following flags are defined:
927 OBJ_BSEARCH_VALUE_ON_NOMATCH
928 This one gets OBJ_bsearch_ex() to return a pointer to the first
929 element where the comparing function returns a negative or zero
932 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
933 This one gets OBJ_bsearch_ex() to return a pointer to the first
934 element where the comparing function returns zero. This is useful
935 if there are more than one element where the comparing function
939 *) Make it possible to create self-signed certificates with 'openssl ca'
940 in such a way that the self-signed certificate becomes part of the
941 CA database and uses the same mechanisms for serial number generation
942 as all other certificate signing. The new flag '-selfsign' enables
943 this functionality. Adapt CA.sh and CA.pl.in.
946 *) Add functionality to check the public key of a certificate request
947 against a given private. This is useful to check that a certificate
948 request can be signed by that key (self-signing).
951 *) Make it possible to have multiple active certificates with the same
952 subject in the CA index file. This is done only if the keyword
953 'unique_subject' is set to 'no' in the main CA section (default
954 if 'CA_default') of the configuration file. The value is saved
955 with the database itself in a separate index attribute file,
956 named like the index file with '.attr' appended to the name.
959 *) Generate muti valued AVAs using '+' notation in config files for
963 *) Support for nameConstraints certificate extension.
966 *) Support for policyConstraints certificate extension.
969 *) Support for policyMappings certificate extension.
972 *) Make sure the default DSA_METHOD implementation only uses its
973 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
974 and change its own handlers to be NULL so as to remove unnecessary
975 indirection. This lets alternative implementations fallback to the
976 default implementation more easily.
979 *) Support for directoryName in GeneralName related extensions
983 *) Make it possible to link applications using Makefile.shared.
984 Make that possible even when linking against static libraries!
987 *) Support for single pass processing for S/MIME signing. This now
988 means that S/MIME signing can be done from a pipe, in addition
989 cleartext signing (multipart/signed type) is effectively streaming
990 and the signed data does not need to be all held in memory.
992 This is done with a new flag PKCS7_STREAM. When this flag is set
993 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
994 is done after the data is output (and digests calculated) in
998 *) Add full support for -rpath/-R, both in shared libraries and
999 applications, at least on the platforms where it's known how
1003 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1004 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1005 will now compute a table of multiples of the generator that
1006 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1007 faster (notably in the case of a single point multiplication,
1008 scalar * generator).
1009 [Nils Larsch, Bodo Moeller]
1011 *) IPv6 support for certificate extensions. The various extensions
1012 which use the IP:a.b.c.d can now take IPv6 addresses using the
1013 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1017 *) Added an ENGINE that implements RSA by performing private key
1018 exponentiations with the GMP library. The conversions to and from
1019 GMP's mpz_t format aren't optimised nor are any montgomery forms
1020 cached, and on x86 it appears OpenSSL's own performance has caught up.
1021 However there are likely to be other architectures where GMP could
1022 provide a boost. This ENGINE is not built in by default, but it can be
1023 specified at Configure time and should be accompanied by the necessary
1024 linker additions, eg;
1025 ./config -DOPENSSL_USE_GMP -lgmp
1028 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1029 testing availability of engines with "-t" - the old behaviour is
1030 produced by increasing the feature's verbosity with "-tt".
1033 *) ECDSA routines: under certain error conditions uninitialized BN objects
1034 could be freed. Solution: make sure initialization is performed early
1035 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1039 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1040 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1041 software implementations. For DSA and DH, parameter generation can
1042 also be overriden by providing the appropriate method callbacks.
1045 *) Change the "progress" mechanism used in key-generation and
1046 primality testing to functions that take a new BN_GENCB pointer in
1047 place of callback/argument pairs. The new API functions have "_ex"
1048 postfixes and the older functions are reimplemented as wrappers for
1049 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1050 declarations of the old functions to help (graceful) attempts to
1051 migrate to the new functions. Also, the new key-generation API
1052 functions operate on a caller-supplied key-structure and return
1053 success/failure rather than returning a key or NULL - this is to
1054 help make "keygen" another member function of RSA_METHOD etc.
1056 Example for using the new callback interface:
1058 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1062 BN_GENCB_set(&my_cb, my_callback, my_arg);
1064 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1065 /* For the meaning of a, b in calls to my_callback(), see the
1066 * documentation of the function that calls the callback.
1067 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1068 * my_callback should return 1 if it wants BN_is_prime_ex()
1069 * to continue, or 0 to stop.
1074 *) Change the ZLIB compression method to be stateful, and make it
1075 available to TLS with the number defined in
1076 draft-ietf-tls-compression-04.txt.
1079 *) Add the ASN.1 structures and functions for CertificatePair, which
1080 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1082 CertificatePair ::= SEQUENCE {
1083 forward [0] Certificate OPTIONAL,
1084 reverse [1] Certificate OPTIONAL,
1085 -- at least one of the pair shall be present -- }
1087 Also implement the PEM functions to read and write certificate
1088 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1090 This needed to be defined, mostly for the sake of the LDAP
1091 attribute crossCertificatePair, but may prove useful elsewhere as
1095 *) Make it possible to inhibit symlinking of shared libraries in
1096 Makefile.shared, for Cygwin's sake.
1099 *) Extend the BIGNUM API by creating a function
1100 void BN_set_negative(BIGNUM *a, int neg);
1101 and a macro that behave like
1102 int BN_is_negative(const BIGNUM *a);
1104 to avoid the need to access 'a->neg' directly in applications.
1107 *) Implement fast modular reduction for pseudo-Mersenne primes
1108 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1109 EC_GROUP_new_curve_GFp() will now automatically use this
1111 [Nils Larsch <nla@trustcenter.de>]
1113 *) Add new lock type (CRYPTO_LOCK_BN).
1116 *) Change the ENGINE framework to automatically load engines
1117 dynamically from specific directories unless they could be
1118 found to already be built in or loaded. Move all the
1119 current engines except for the cryptodev one to a new
1121 The engines in engines/ are built as shared libraries if
1122 the "shared" options was given to ./Configure or ./config.
1123 Otherwise, they are inserted in libcrypto.a.
1124 /usr/local/ssl/engines is the default directory for dynamic
1125 engines, but that can be overriden at configure time through
1126 the usual use of --prefix and/or --openssldir, and at run
1127 time with the environment variable OPENSSL_ENGINES.
1128 [Geoff Thorpe and Richard Levitte]
1130 *) Add Makefile.shared, a helper makefile to build shared
1131 libraries. Addapt Makefile.org.
1134 *) Add version info to Win32 DLLs.
1135 [Peter 'Luna' Runestig" <peter@runestig.com>]
1137 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1138 can be added using this API to created arbitrary PKCS#12
1139 files while avoiding the low level API.
1141 New options to PKCS12_create(), key or cert can be NULL and
1142 will then be omitted from the output file. The encryption
1143 algorithm NIDs can be set to -1 for no encryption, the mac
1144 iteration count can be set to 0 to omit the mac.
1146 Enhance pkcs12 utility by making the -nokeys and -nocerts
1147 options work when creating a PKCS#12 file. New option -nomac
1148 to omit the mac, NONE can be set for an encryption algorithm.
1149 New code is modified to use the enhanced PKCS12_create()
1150 instead of the low level API.
1153 *) Extend ASN1 encoder to support indefinite length constructed
1154 encoding. This can output sequences tags and octet strings in
1155 this form. Modify pk7_asn1.c to support indefinite length
1156 encoding. This is experimental and needs additional code to
1157 be useful, such as an ASN1 bio and some enhanced streaming
1160 Extend template encode functionality so that tagging is passed
1161 down to the template encoder.
1164 *) Let 'openssl req' fail if an argument to '-newkey' is not
1165 recognized instead of using RSA as a default.
1168 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1169 As these are not official, they are not included in "ALL";
1170 the "ECCdraft" ciphersuite group alias can be used to select them.
1171 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1173 *) Add ECDH engine support.
1174 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1176 *) Add ECDH in new directory crypto/ecdh/.
1177 [Douglas Stebila (Sun Microsystems Laboratories)]
1179 *) Let BN_rand_range() abort with an error after 100 iterations
1180 without success (which indicates a broken PRNG).
1183 *) Change BN_mod_sqrt() so that it verifies that the input value
1184 is really the square of the return value. (Previously,
1185 BN_mod_sqrt would show GIGO behaviour.)
1188 *) Add named elliptic curves over binary fields from X9.62, SECG,
1189 and WAP/WTLS; add OIDs that were still missing.
1191 [Sheueling Chang Shantz and Douglas Stebila
1192 (Sun Microsystems Laboratories)]
1194 *) Extend the EC library for elliptic curves over binary fields
1195 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1198 EC_GF2m_simple_method
1202 EC_GROUP_new_curve_GF2m
1203 EC_GROUP_set_curve_GF2m
1204 EC_GROUP_get_curve_GF2m
1205 EC_POINT_set_affine_coordinates_GF2m
1206 EC_POINT_get_affine_coordinates_GF2m
1207 EC_POINT_set_compressed_coordinates_GF2m
1209 Point compression for binary fields is disabled by default for
1210 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1213 As binary polynomials are represented as BIGNUMs, various members
1214 of the EC_GROUP and EC_POINT data structures can be shared
1215 between the implementations for prime fields and binary fields;
1216 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1217 are essentially identical to their ..._GFp counterparts.
1218 (For simplicity, the '..._GFp' prefix has been dropped from
1219 various internal method names.)
1221 An internal 'field_div' method (similar to 'field_mul' and
1222 'field_sqr') has been added; this is used only for binary fields.
1224 [Sheueling Chang Shantz and Douglas Stebila
1225 (Sun Microsystems Laboratories)]
1227 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1228 through methods ('mul', 'precompute_mult').
1230 The generic implementations (now internally called 'ec_wNAF_mul'
1231 and 'ec_wNAF_precomputed_mult') remain the default if these
1232 methods are undefined.
1234 [Sheueling Chang Shantz and Douglas Stebila
1235 (Sun Microsystems Laboratories)]
1237 *) New function EC_GROUP_get_degree, which is defined through
1238 EC_METHOD. For curves over prime fields, this returns the bit
1239 length of the modulus.
1241 [Sheueling Chang Shantz and Douglas Stebila
1242 (Sun Microsystems Laboratories)]
1244 *) New functions EC_GROUP_dup, EC_POINT_dup.
1245 (These simply call ..._new and ..._copy).
1247 [Sheueling Chang Shantz and Douglas Stebila
1248 (Sun Microsystems Laboratories)]
1250 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1251 Polynomials are represented as BIGNUMs (where the sign bit is not
1252 used) in the following functions [macros]:
1255 BN_GF2m_sub [= BN_GF2m_add]
1256 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1257 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1258 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1260 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1261 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1262 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1263 BN_GF2m_cmp [= BN_ucmp]
1265 (Note that only the 'mod' functions are actually for fields GF(2^m).
1266 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1268 For some functions, an the irreducible polynomial defining a
1269 field can be given as an 'unsigned int[]' with strictly
1270 decreasing elements giving the indices of those bits that are set;
1271 i.e., p[] represents the polynomial
1272 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1274 p[0] > p[1] > ... > p[k] = 0.
1275 This applies to the following functions:
1280 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1281 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1283 BN_GF2m_mod_sqrt_arr
1284 BN_GF2m_mod_solve_quad_arr
1288 Conversion can be performed by the following functions:
1293 bntest.c has additional tests for binary polynomial arithmetic.
1295 Two implementations for BN_GF2m_mod_div() are available.
1296 The default algorithm simply uses BN_GF2m_mod_inv() and
1297 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1298 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1299 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1301 [Sheueling Chang Shantz and Douglas Stebila
1302 (Sun Microsystems Laboratories)]
1304 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1305 functionality is disabled at compile-time.
1306 [Douglas Stebila <douglas.stebila@sun.com>]
1308 *) Change default behaviour of 'openssl asn1parse' so that more
1309 information is visible when viewing, e.g., a certificate:
1311 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1312 mode the content of non-printable OCTET STRINGs is output in a
1313 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1314 avoid the appearance of a printable string.
1315 [Nils Larsch <nla@trustcenter.de>]
1317 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1319 EC_GROUP_set_asn1_flag()
1320 EC_GROUP_get_asn1_flag()
1321 EC_GROUP_set_point_conversion_form()
1322 EC_GROUP_get_point_conversion_form()
1323 These control ASN1 encoding details:
1324 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1325 has been set to OPENSSL_EC_NAMED_CURVE.
1326 - Points are encoded in uncompressed form by default; options for
1327 asn1_for are as for point2oct, namely
1328 POINT_CONVERSION_COMPRESSED
1329 POINT_CONVERSION_UNCOMPRESSED
1330 POINT_CONVERSION_HYBRID
1332 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1335 EC_GROUP_get0_seed()
1336 EC_GROUP_get_seed_len()
1337 This is used only for ASN1 purposes (so far).
1338 [Nils Larsch <nla@trustcenter.de>]
1340 *) Add 'field_type' member to EC_METHOD, which holds the NID
1341 of the appropriate field type OID. The new function
1342 EC_METHOD_get_field_type() returns this value.
1343 [Nils Larsch <nla@trustcenter.de>]
1348 EC_POINT_point2hex()
1349 EC_POINT_hex2point()
1350 providing useful interfaces to EC_POINT_point2oct() and
1351 EC_POINT_oct2point().
1352 [Nils Larsch <nla@trustcenter.de>]
1354 *) Change internals of the EC library so that the functions
1355 EC_GROUP_set_generator()
1356 EC_GROUP_get_generator()
1357 EC_GROUP_get_order()
1358 EC_GROUP_get_cofactor()
1359 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1360 to methods, which would lead to unnecessary code duplication when
1361 adding different types of curves.
1362 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1364 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1365 arithmetic, and such that modified wNAFs are generated
1366 (which avoid length expansion in many cases).
1369 *) Add a function EC_GROUP_check_discriminant() (defined via
1370 EC_METHOD) that verifies that the curve discriminant is non-zero.
1372 Add a function EC_GROUP_check() that makes some sanity tests
1373 on a EC_GROUP, its generator and order. This includes
1374 EC_GROUP_check_discriminant().
1375 [Nils Larsch <nla@trustcenter.de>]
1377 *) Add ECDSA in new directory crypto/ecdsa/.
1379 Add applications 'openssl ecparam' and 'openssl ecdsa'
1380 (these are based on 'openssl dsaparam' and 'openssl dsa').
1382 ECDSA support is also included in various other files across the
1383 library. Most notably,
1384 - 'openssl req' now has a '-newkey ecdsa:file' option;
1385 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1386 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1387 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1388 them suitable for ECDSA where domain parameters must be
1389 extracted before the specific public key;
1390 - ECDSA engine support has been added.
1391 [Nils Larsch <nla@trustcenter.de>]
1393 *) Include some named elliptic curves, and add OIDs from X9.62,
1394 SECG, and WAP/WTLS. Each curve can be obtained from the new
1396 EC_GROUP_new_by_curve_name(),
1397 and the list of available named curves can be obtained with
1398 EC_get_builtin_curves().
1399 Also add a 'curve_name' member to EC_GROUP objects, which can be
1401 EC_GROUP_set_curve_name()
1402 EC_GROUP_get_curve_name()
1403 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1405 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1406 was actually never needed) and in BN_mul(). The removal in BN_mul()
1407 required a small change in bn_mul_part_recursive() and the addition
1408 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1409 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1410 bn_sub_words() and bn_add_words() except they take arrays with
1414 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1416 *) In the SSL/TLS server implementation, be strict about session ID
1417 context matching (which matters if an application uses a single
1418 external cache for different purposes). Previously,
1419 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1420 set. This did ensure strict client verification, but meant that,
1421 with applications using a single external cache for quite
1422 different requirements, clients could circumvent ciphersuite
1423 restrictions for a given session ID context by starting a session
1424 in a different context.
1427 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1429 *) Cleanse PEM buffers before freeing them since they may contain
1431 [Benjamin Bennett <ben@psc.edu>]
1433 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1434 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1435 authentication-only ciphersuites.
1438 *) Since AES128 and AES256 share a single mask bit in the logic of
1439 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1440 kludge to work properly if AES128 is available and AES256 isn't.
1443 *) Expand security boundary to match 1.1.1 module.
1446 *) Remove redundant features: hash file source, editing of test vectors
1447 modify fipsld to use external fips_premain.c signature.
1450 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1451 run algorithm test programs.
1454 *) Make algorithm test programs more tolerant of whitespace.
1457 *) Have SSL/TLS server implementation tolerate "mismatched" record
1458 protocol version while receiving ClientHello even if the
1459 ClientHello is fragmented. (The server can't insist on the
1460 particular protocol version it has chosen before the ServerHello
1461 message has informed the client about his choice.)
1464 *) Load error codes if they are not already present instead of using a
1465 static variable. This allows them to be cleanly unloaded and reloaded.
1468 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1470 *) Introduce limits to prevent malicious keys being able to
1471 cause a denial of service. (CVE-2006-2940)
1472 [Steve Henson, Bodo Moeller]
1474 *) Fix ASN.1 parsing of certain invalid structures that can result
1475 in a denial of service. (CVE-2006-2937) [Steve Henson]
1477 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1478 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1480 *) Fix SSL client code which could crash if connecting to a
1481 malicious SSLv2 server. (CVE-2006-4343)
1482 [Tavis Ormandy and Will Drewry, Google Security Team]
1484 *) Change ciphersuite string processing so that an explicit
1485 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1486 will no longer include "AES128-SHA"), and any other similar
1487 ciphersuite (same bitmap) from *other* protocol versions (so that
1488 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1489 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1490 changes from 0.9.8b and 0.9.8d.
1493 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1495 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1496 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1498 *) Change the Unix randomness entropy gathering to use poll() when
1499 possible instead of select(), since the latter has some
1500 undesirable limitations.
1501 [Darryl Miles via Richard Levitte and Bodo Moeller]
1503 *) Disable rogue ciphersuites:
1505 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1506 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1507 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1509 The latter two were purportedly from
1510 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1513 Also deactive the remaining ciphersuites from
1514 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1515 unofficial, and the ID has long expired.
1518 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1519 dual-core machines) and other potential thread-safety issues.
1522 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1524 *) Adapt fipsld and the build system to link against the validated FIPS
1525 module in FIPS mode.
1528 *) Fixes for VC++ 2005 build under Windows.
1531 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1532 from a Windows bash shell such as MSYS. It is autodetected from the
1533 "config" script when run from a VC++ environment. Modify standard VC++
1534 build to use fipscanister.o from the GNU make build.
1537 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1539 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1540 The value now differs depending on if you build for FIPS or not.
1541 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1542 safely run with a non-FIPSed libcrypto, as it may crash because of
1543 the difference induced by this change.
1546 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1548 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1549 (part of SSL_OP_ALL). This option used to disable the
1550 countermeasure against man-in-the-middle protocol-version
1551 rollback in the SSL 2.0 server implementation, which is a bad
1552 idea. (CVE-2005-2969)
1554 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1555 for Information Security, National Institute of Advanced Industrial
1556 Science and Technology [AIST], Japan)]
1558 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1559 mainly for FIPS compliance and not fully integrated at this stage.
1562 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1563 the exponentiation using a fixed-length exponent. (Otherwise,
1564 the information leaked through timing could expose the secret key
1565 after many signatures; cf. Bleichenbacher's attack on DSA with
1569 *) Make a new fixed-window mod_exp implementation the default for
1570 RSA, DSA, and DH private-key operations so that the sequence of
1571 squares and multiplies and the memory access pattern are
1572 independent of the particular secret key. This will mitigate
1573 cache-timing and potential related attacks.
1575 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1576 and this is automatically used by BN_mod_exp_mont() if the new flag
1577 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1578 will use this BN flag for private exponents unless the flag
1579 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1580 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1582 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1584 *) Change the client implementation for SSLv23_method() and
1585 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1586 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1587 (Previously, the SSL 2.0 backwards compatible Client Hello
1588 message format would be used even with SSL_OP_NO_SSLv2.)
1591 *) Add support for smime-type MIME parameter in S/MIME messages which some
1595 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1596 a threadsafe manner. Modify rsa code to use new function and add calls
1597 to dsa and dh code (which had race conditions before).
1600 *) Include the fixed error library code in the C error file definitions
1601 instead of fixing them up at runtime. This keeps the error code
1602 structures constant.
1605 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1607 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1610 *) Fixes for newer kerberos headers. NB: the casts are needed because
1611 the 'length' field is signed on one version and unsigned on another
1612 with no (?) obvious way to tell the difference, without these VC++
1613 complains. Also the "definition" of FAR (blank) is no longer included
1614 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1615 some needed definitions.
1618 *) Undo Cygwin change.
1621 *) Added support for proxy certificates according to RFC 3820.
1622 Because they may be a security thread to unaware applications,
1623 they must be explicitely allowed in run-time. See
1624 docs/HOWTO/proxy_certificates.txt for further information.
1627 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1629 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1630 server and client random values. Previously
1631 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1632 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1634 This change has negligible security impact because:
1636 1. Server and client random values still have 24 bytes of pseudo random
1639 2. Server and client random values are sent in the clear in the initial
1642 3. The master secret is derived using the premaster secret (48 bytes in
1643 size for static RSA ciphersuites) as well as client server and random
1646 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1649 [Stephen Henson, reported by UK NISCC]
1651 *) Use Windows randomness collection on Cygwin.
1654 *) Fix hang in EGD/PRNGD query when communication socket is closed
1655 prematurely by EGD/PRNGD.
1656 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1658 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1661 *) Back-port of selected performance improvements from development
1662 branch, as well as improved support for PowerPC platforms.
1665 *) Add lots of checks for memory allocation failure, error codes to indicate
1666 failure and freeing up memory if a failure occurs.
1667 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1669 *) Add new -passin argument to dgst.
1672 *) Perform some character comparisons of different types in X509_NAME_cmp:
1673 this is needed for some certificates that reencode DNs into UTF8Strings
1674 (in violation of RFC3280) and can't or wont issue name rollover
1678 *) Make an explicit check during certificate validation to see that
1679 the CA setting in each certificate on the chain is correct. As a
1680 side effect always do the following basic checks on extensions,
1681 not just when there's an associated purpose to the check:
1683 - if there is an unhandled critical extension (unless the user
1684 has chosen to ignore this fault)
1685 - if the path length has been exceeded (if one is set at all)
1686 - that certain extensions fit the associated purpose (if one has
1690 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1692 *) Avoid a race condition when CRLs are checked in a multi threaded
1693 environment. This would happen due to the reordering of the revoked
1694 entries during signature checking and serial number lookup. Now the
1695 encoding is cached and the serial number sort performed under a lock.
1696 Add new STACK function sk_is_sorted().
1699 *) Add Delta CRL to the extension code.
1702 *) Various fixes to s3_pkt.c so alerts are sent properly.
1703 [David Holmes <d.holmes@f5.com>]
1705 *) Reduce the chances of duplicate issuer name and serial numbers (in
1706 violation of RFC3280) using the OpenSSL certificate creation utilities.
1707 This is done by creating a random 64 bit value for the initial serial
1708 number when a serial number file is created or when a self signed
1709 certificate is created using 'openssl req -x509'. The initial serial
1710 number file is created using 'openssl x509 -next_serial' in CA.pl
1711 rather than being initialized to 1.
1714 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1716 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1717 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1718 [Joe Orton, Steve Henson]
1720 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1722 [Joe Orton, Steve Henson]
1724 *) Make it possible to have multiple active certificates with the same
1725 subject in the CA index file. This is done only if the keyword
1726 'unique_subject' is set to 'no' in the main CA section (default
1727 if 'CA_default') of the configuration file. The value is saved
1728 with the database itself in a separate index attribute file,
1729 named like the index file with '.attr' appended to the name.
1732 *) X509 verify fixes. Disable broken certificate workarounds when
1733 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1734 keyUsage extension present. Don't accept CRLs with unhandled critical
1735 extensions: since verify currently doesn't process CRL extensions this
1736 rejects a CRL with *any* critical extensions. Add new verify error codes
1740 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1741 A clarification of RFC2560 will require the use of OCTET STRINGs and
1742 some implementations cannot handle the current raw format. Since OpenSSL
1743 copies and compares OCSP nonces as opaque blobs without any attempt at
1744 parsing them this should not create any compatibility issues.
1747 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1748 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1749 this HMAC (and other) operations are several times slower than OpenSSL
1753 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1754 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1756 *) Use the correct content when signing type "other".
1759 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1761 *) Fix various bugs revealed by running the NISCC test suite:
1763 Stop out of bounds reads in the ASN1 code when presented with
1764 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1766 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1768 If verify callback ignores invalid public key errors don't try to check
1769 certificate signature with the NULL public key.
1773 *) New -ignore_err option in ocsp application to stop the server
1774 exiting on the first error in a request.
1777 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1778 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1782 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1783 extra data after the compression methods not only for TLS 1.0
1784 but also for SSL 3.0 (as required by the specification).
1785 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1787 *) Change X509_certificate_type() to mark the key as exported/exportable
1788 when it's 512 *bits* long, not 512 bytes.
1791 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1792 blocks during encryption.
1795 *) Various fixes to base64 BIO and non blocking I/O. On write
1796 flushes were not handled properly if the BIO retried. On read
1797 data was not being buffered properly and had various logic bugs.
1798 This also affects blocking I/O when the data being decoded is a
1802 *) Various S/MIME bugfixes and compatibility changes:
1803 output correct application/pkcs7 MIME type if
1804 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1805 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1806 of files as .eml work). Correctly handle very long lines in MIME
1810 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1812 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1813 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1814 a protocol version number mismatch like a decryption error
1815 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1818 *) Turn on RSA blinding by default in the default implementation
1819 to avoid a timing attack. Applications that don't want it can call
1820 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1821 They would be ill-advised to do so in most cases.
1822 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1824 *) Change RSA blinding code so that it works when the PRNG is not
1825 seeded (in this case, the secret RSA exponent is abused as
1826 an unpredictable seed -- if it is not unpredictable, there
1827 is no point in blinding anyway). Make RSA blinding thread-safe
1828 by remembering the creator's thread ID in rsa->blinding and
1829 having all other threads use local one-time blinding factors
1830 (this requires more computation than sharing rsa->blinding, but
1831 avoids excessive locking; and if an RSA object is not shared
1832 between threads, blinding will still be very fast).
1835 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1836 ENGINE as defaults for all supported algorithms irrespective of
1837 the 'flags' parameter. 'flags' is now honoured, so applications
1838 should make sure they are passing it correctly.
1841 *) Target "mingw" now allows native Windows code to be generated in
1842 the Cygwin environment as well as with the MinGW compiler.
1845 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1847 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1848 via timing by performing a MAC computation even if incorrrect
1849 block cipher padding has been found. This is a countermeasure
1850 against active attacks where the attacker has to distinguish
1851 between bad padding and a MAC verification error. (CVE-2003-0078)
1853 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1854 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1855 Martin Vuagnoux (EPFL, Ilion)]
1857 *) Make the no-err option work as intended. The intention with no-err
1858 is not to have the whole error stack handling routines removed from
1859 libcrypto, it's only intended to remove all the function name and
1860 reason texts, thereby removing some of the footprint that may not
1861 be interesting if those errors aren't displayed anyway.
1863 NOTE: it's still possible for any application or module to have it's
1864 own set of error texts inserted. The routines are there, just not
1865 used by default when no-err is given.
1868 *) Add support for FreeBSD on IA64.
1869 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1871 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1872 Kerberos function mit_des_cbc_cksum(). Before this change,
1873 the value returned by DES_cbc_cksum() was like the one from
1874 mit_des_cbc_cksum(), except the bytes were swapped.
1875 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1877 *) Allow an application to disable the automatic SSL chain building.
1878 Before this a rather primitive chain build was always performed in
1879 ssl3_output_cert_chain(): an application had no way to send the
1880 correct chain if the automatic operation produced an incorrect result.
1882 Now the chain builder is disabled if either:
1884 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1886 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1888 The reasoning behind this is that an application would not want the
1889 auto chain building to take place if extra chain certificates are
1890 present and it might also want a means of sending no additional
1891 certificates (for example the chain has two certificates and the
1895 *) Add the possibility to build without the ENGINE framework.
1896 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1898 *) Under Win32 gmtime() can return NULL: check return value in
1899 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1902 *) DSA routines: under certain error conditions uninitialized BN objects
1903 could be freed. Solution: make sure initialization is performed early
1904 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1905 Nils Larsch <nla@trustcenter.de> via PR#459)
1908 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1909 checked on reconnect on the client side, therefore session resumption
1910 could still fail with a "ssl session id is different" error. This
1911 behaviour is masked when SSL_OP_ALL is used due to
1912 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1913 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1914 followup to PR #377.
1917 *) IA-32 assembler support enhancements: unified ELF targets, support
1918 for SCO/Caldera platforms, fix for Cygwin shared build.
1921 *) Add support for FreeBSD on sparc64. As a consequence, support for
1922 FreeBSD on non-x86 processors is separate from x86 processors on
1923 the config script, much like the NetBSD support.
1924 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1926 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1928 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1931 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1932 code (06) was taken as the first octet of the session ID and the last
1933 octet was ignored consequently. As a result SSLv2 client side session
1934 caching could not have worked due to the session ID mismatch between
1936 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1940 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1941 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1945 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1946 seems that in spite of existing for more than a year, many application
1947 author have done nothing to provide the necessary callbacks, which
1948 means that this particular engine will not work properly anywhere.
1949 This is a very unfortunate situation which forces us, in the name
1950 of usability, to give the hw_ncipher.c a static lock, which is part
1952 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1953 appear in 0.9.8 or later. We EXPECT application authors to have
1954 dealt properly with this when 0.9.8 is released (unless we actually
1955 make such changes in the libcrypto locking code that changes will
1956 have to be made anyway).
1959 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1960 octets have been read, EOF or an error occurs. Without this change
1961 some truncated ASN1 structures will not produce an error.
1964 *) Disable Heimdal support, since it hasn't been fully implemented.
1965 Still give the possibility to force the use of Heimdal, but with
1966 warnings and a request that patches get sent to openssl-dev.
1969 *) Add the VC-CE target, introduce the WINCE sysname, and add
1970 INSTALL.WCE and appropriate conditionals to make it build.
1971 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1973 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1974 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1975 edit numbers of the version.
1976 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1978 *) Introduce safe string copy and catenation functions
1979 (BUF_strlcpy() and BUF_strlcat()).
1980 [Ben Laurie (CHATS) and Richard Levitte]
1982 *) Avoid using fixed-size buffers for one-line DNs.
1983 [Ben Laurie (CHATS)]
1985 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1986 resizing buffers containing secrets, and use where appropriate.
1987 [Ben Laurie (CHATS)]
1989 *) Avoid using fixed size buffers for configuration file location.
1990 [Ben Laurie (CHATS)]
1992 *) Avoid filename truncation for various CA files.
1993 [Ben Laurie (CHATS)]
1995 *) Use sizeof in preference to magic numbers.
1996 [Ben Laurie (CHATS)]
1998 *) Avoid filename truncation in cert requests.
1999 [Ben Laurie (CHATS)]
2001 *) Add assertions to check for (supposedly impossible) buffer
2003 [Ben Laurie (CHATS)]
2005 *) Don't cache truncated DNS entries in the local cache (this could
2006 potentially lead to a spoofing attack).
2007 [Ben Laurie (CHATS)]
2009 *) Fix various buffers to be large enough for hex/decimal
2010 representations in a platform independent manner.
2011 [Ben Laurie (CHATS)]
2013 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2014 resizing buffers containing secrets, and use where appropriate.
2015 [Ben Laurie (CHATS)]
2017 *) Add BIO_indent() to avoid much slightly worrying code to do
2019 [Ben Laurie (CHATS)]
2021 *) Convert sprintf()/BIO_puts() to BIO_printf().
2022 [Ben Laurie (CHATS)]
2024 *) buffer_gets() could terminate with the buffer only half
2026 [Ben Laurie (CHATS)]
2028 *) Add assertions to prevent user-supplied crypto functions from
2029 overflowing internal buffers by having large block sizes, etc.
2030 [Ben Laurie (CHATS)]
2032 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2034 [Ben Laurie (CHATS)]
2036 *) Eliminate unused copy of key in RC4.
2037 [Ben Laurie (CHATS)]
2039 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2040 [Ben Laurie (CHATS)]
2042 *) Fix off-by-one error in EGD path.
2043 [Ben Laurie (CHATS)]
2045 *) If RANDFILE path is too long, ignore instead of truncating.
2046 [Ben Laurie (CHATS)]
2048 *) Eliminate unused and incorrectly sized X.509 structure
2050 [Ben Laurie (CHATS)]
2052 *) Eliminate unused and dangerous function knumber().
2053 [Ben Laurie (CHATS)]
2055 *) Eliminate unused and dangerous structure, KSSL_ERR.
2056 [Ben Laurie (CHATS)]
2058 *) Protect against overlong session ID context length in an encoded
2059 session object. Since these are local, this does not appear to be
2061 [Ben Laurie (CHATS)]
2063 *) Change from security patch (see 0.9.6e below) that did not affect
2064 the 0.9.6 release series:
2066 Remote buffer overflow in SSL3 protocol - an attacker could
2067 supply an oversized master key in Kerberos-enabled versions.
2069 [Ben Laurie (CHATS)]
2071 *) Change the SSL kerb5 codes to match RFC 2712.
2074 *) Make -nameopt work fully for req and add -reqopt switch.
2075 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2077 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2078 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2080 *) Make sure tests can be performed even if the corresponding algorithms
2081 have been removed entirely. This was also the last step to make
2082 OpenSSL compilable with DJGPP under all reasonable conditions.
2083 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2085 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2086 to allow version independent disabling of normally unselected ciphers,
2087 which may be activated as a side-effect of selecting a single cipher.
2089 (E.g., cipher list string "RSA" enables ciphersuites that are left
2090 out of "ALL" because they do not provide symmetric encryption.
2091 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2092 [Lutz Jaenicke, Bodo Moeller]
2094 *) Add appropriate support for separate platform-dependent build
2095 directories. The recommended way to make a platform-dependent
2096 build directory is the following (tested on Linux), maybe with
2099 # Place yourself outside of the OpenSSL source tree. In
2100 # this example, the environment variable OPENSSL_SOURCE
2101 # is assumed to contain the absolute OpenSSL source directory.
2102 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2103 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2104 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2105 mkdir -p `dirname $F`
2106 ln -s $OPENSSL_SOURCE/$F $F
2109 To be absolutely sure not to disturb the source tree, a "make clean"
2110 is a good thing. If it isn't successfull, don't worry about it,
2111 it probably means the source directory is very clean.
2114 *) Make sure any ENGINE control commands make local copies of string
2115 pointers passed to them whenever necessary. Otherwise it is possible
2116 the caller may have overwritten (or deallocated) the original string
2117 data when a later ENGINE operation tries to use the stored values.
2118 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2120 *) Improve diagnostics in file reading and command-line digests.
2121 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2123 *) Add AES modes CFB and OFB to the object database. Correct an
2124 error in AES-CFB decryption.
2127 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2128 allows existing EVP_CIPHER_CTX structures to be reused after
2129 calling EVP_*Final(). This behaviour is used by encryption
2130 BIOs and some applications. This has the side effect that
2131 applications must explicitly clean up cipher contexts with
2132 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2135 *) Check the values of dna and dnb in bn_mul_recursive before calling
2136 bn_mul_comba (a non zero value means the a or b arrays do not contain
2137 n2 elements) and fallback to bn_mul_normal if either is not zero.
2140 *) Fix escaping of non-ASCII characters when using the -subj option
2141 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2144 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2145 form for "surname", serialNumber has no short form.
2146 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2147 therefore remove "mail" short name for "internet 7".
2148 The OID for unique identifiers in X509 certificates is
2149 x500UniqueIdentifier, not uniqueIdentifier.
2150 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2153 *) Add an "init" command to the ENGINE config module and auto initialize
2154 ENGINEs. Without any "init" command the ENGINE will be initialized
2155 after all ctrl commands have been executed on it. If init=1 the
2156 ENGINE is initailized at that point (ctrls before that point are run
2157 on the uninitialized ENGINE and after on the initialized one). If
2158 init=0 then the ENGINE will not be iniatialized at all.
2161 *) Fix the 'app_verify_callback' interface so that the user-defined
2162 argument is actually passed to the callback: In the
2163 SSL_CTX_set_cert_verify_callback() prototype, the callback
2164 declaration has been changed from
2167 int (*cb)(X509_STORE_CTX *,void *);
2168 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2169 i=s->ctx->app_verify_callback(&ctx)
2170 has been changed into
2171 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2173 To update applications using SSL_CTX_set_cert_verify_callback(),
2174 a dummy argument can be added to their callback functions.
2175 [D. K. Smetters <smetters@parc.xerox.com>]
2177 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2178 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2180 *) Add and OPENSSL_LOAD_CONF define which will cause
2181 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2182 This allows older applications to transparently support certain
2183 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2184 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2185 load the config file and OPENSSL_add_all_algorithms_conf() which will
2186 always load it have also been added.
2189 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2190 Adjust NIDs and EVP layer.
2191 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2193 *) Config modules support in openssl utility.
2195 Most commands now load modules from the config file,
2196 though in a few (such as version) this isn't done
2197 because it couldn't be used for anything.
2199 In the case of ca and req the config file used is
2200 the same as the utility itself: that is the -config
2201 command line option can be used to specify an
2205 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2206 use "openssl_conf" if filename is NULL use default openssl config file.
2209 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2210 config section name. Add a new flag to tolerate a missing config file
2211 and move code to CONF_modules_load_file().
2214 *) Support for crypto accelerator cards from Accelerated Encryption
2215 Processing, www.aep.ie. (Use engine 'aep')
2216 The support was copied from 0.9.6c [engine] and adapted/corrected
2217 to work with the new engine framework.
2218 [AEP Inc. and Richard Levitte]
2220 *) Support for SureWare crypto accelerator cards from Baltimore
2221 Technologies. (Use engine 'sureware')
2222 The support was copied from 0.9.6c [engine] and adapted
2223 to work with the new engine framework.
2226 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2227 make the newer ENGINE framework commands for the CHIL engine work.
2228 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2230 *) Make it possible to produce shared libraries on ReliantUNIX.
2231 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2233 *) Add the configuration target debug-linux-ppro.
2234 Make 'openssl rsa' use the general key loading routines
2235 implemented in apps.c, and make those routines able to
2236 handle the key format FORMAT_NETSCAPE and the variant
2238 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2240 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2241 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2243 *) Add -keyform to rsautl, and document -engine.
2244 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2246 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2247 BIO_R_NO_SUCH_FILE error code rather than the generic
2248 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2251 *) Add new functions
2253 ERR_peek_last_error_line
2254 ERR_peek_last_error_line_data.
2255 These are similar to
2258 ERR_peek_error_line_data,
2259 but report on the latest error recorded rather than the first one
2260 still in the error queue.
2261 [Ben Laurie, Bodo Moeller]
2263 *) default_algorithms option in ENGINE config module. This allows things
2265 default_algorithms = ALL
2266 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2269 *) Prelminary ENGINE config module.
2272 *) New experimental application configuration code.
2275 *) Change the AES code to follow the same name structure as all other
2276 symmetric ciphers, and behave the same way. Move everything to
2277 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2278 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2280 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2281 [Ben Laurie and Theo de Raadt]
2283 *) Add option to output public keys in req command.
2284 [Massimiliano Pala madwolf@openca.org]
2286 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2287 (up to about 10% better than before for P-192 and P-224).
2290 *) New functions/macros
2292 SSL_CTX_set_msg_callback(ctx, cb)
2293 SSL_CTX_set_msg_callback_arg(ctx, arg)
2294 SSL_set_msg_callback(ssl, cb)
2295 SSL_set_msg_callback_arg(ssl, arg)
2297 to request calling a callback function
2299 void cb(int write_p, int version, int content_type,
2300 const void *buf, size_t len, SSL *ssl, void *arg)
2302 whenever a protocol message has been completely received
2303 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2304 protocol version according to which the SSL library interprets
2305 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2306 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2307 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2308 specification (change_cipher_spec(20), alert(21), handshake(22)).
2309 'buf' and 'len' point to the actual message, 'ssl' to the
2310 SSL object, and 'arg' is the application-defined value set by
2311 SSL[_CTX]_set_msg_callback_arg().
2313 'openssl s_client' and 'openssl s_server' have new '-msg' options
2314 to enable a callback that displays all protocol messages.
2317 *) Change the shared library support so shared libraries are built as
2318 soon as the corresponding static library is finished, and thereby get
2319 openssl and the test programs linked against the shared library.
2320 This still only happens when the keyword "shard" has been given to
2321 the configuration scripts.
2323 NOTE: shared library support is still an experimental thing, and
2324 backward binary compatibility is still not guaranteed.
2325 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2327 *) Add support for Subject Information Access extension.
2328 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2330 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2331 additional bytes when new memory had to be allocated, not just
2332 when reusing an existing buffer.
2335 *) New command line and configuration option 'utf8' for the req command.
2336 This allows field values to be specified as UTF8 strings.
2339 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2340 runs for the former and machine-readable output for the latter.
2343 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2344 of the e-mail address in the DN (i.e., it will go into a certificate
2345 extension only). The new configuration file option 'email_in_dn = no'
2346 has the same effect.
2347 [Massimiliano Pala madwolf@openca.org]
2349 *) Change all functions with names starting with des_ to be starting
2350 with DES_ instead. Add wrappers that are compatible with libdes,
2351 but are named _ossl_old_des_*. Finally, add macros that map the
2352 des_* symbols to the corresponding _ossl_old_des_* if libdes
2353 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2354 desired, the des_* symbols will be mapped to DES_*, with one
2357 Since we provide two compatibility mappings, the user needs to
2358 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2359 compatibility is desired. The default (i.e., when that macro
2360 isn't defined) is OpenSSL 0.9.6c compatibility.
2362 There are also macros that enable and disable the support of old
2363 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2364 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2365 are defined, the default will apply: to support the old des routines.
2367 In either case, one must include openssl/des.h to get the correct
2368 definitions. Do not try to just include openssl/des_old.h, that
2371 NOTE: This is a major break of an old API into a new one. Software
2372 authors are encouraged to switch to the DES_ style functions. Some
2373 time in the future, des_old.h and the libdes compatibility functions
2374 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2375 default), and then completely removed.
2378 *) Test for certificates which contain unsupported critical extensions.
2379 If such a certificate is found during a verify operation it is
2380 rejected by default: this behaviour can be overridden by either
2381 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2382 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2383 X509_supported_extension() has also been added which returns 1 if a
2384 particular extension is supported.
2387 *) Modify the behaviour of EVP cipher functions in similar way to digests
2388 to retain compatibility with existing code.
2391 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2392 compatibility with existing code. In particular the 'ctx' parameter does
2393 not have to be to be initialized before the call to EVP_DigestInit() and
2394 it is tidied up after a call to EVP_DigestFinal(). New function
2395 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2396 EVP_MD_CTX_copy() changed to not require the destination to be
2397 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2398 requires the destination to be valid.
2400 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2401 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2404 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2405 so that complete 'Handshake' protocol structures are kept in memory
2406 instead of overwriting 'msg_type' and 'length' with 'body' data.
2409 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2410 [Massimo Santin via Richard Levitte]
2412 *) Major restructuring to the underlying ENGINE code. This includes
2413 reduction of linker bloat, separation of pure "ENGINE" manipulation
2414 (initialisation, etc) from functionality dealing with implementations
2415 of specific crypto iterfaces. This change also introduces integrated
2416 support for symmetric ciphers and digest implementations - so ENGINEs
2417 can now accelerate these by providing EVP_CIPHER and EVP_MD
2418 implementations of their own. This is detailed in crypto/engine/README
2419 as it couldn't be adequately described here. However, there are a few
2420 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2421 were changed in the original introduction of ENGINE code have now
2422 reverted back - the hooking from this code to ENGINE is now a good
2423 deal more passive and at run-time, operations deal directly with
2424 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2425 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2426 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2427 they were not being used by the framework as there is no concept of a
2428 BIGNUM_METHOD and they could not be generalised to the new
2429 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2430 ENGINE_cpy() has been removed as it cannot be consistently defined in
2434 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2437 *) Change mkdef.pl to sort symbols that get the same entry number,
2438 and make sure the automatically generated functions ERR_load_*
2439 become part of libeay.num as well.
2442 *) New function SSL_renegotiate_pending(). This returns true once
2443 renegotiation has been requested (either SSL_renegotiate() call
2444 or HelloRequest/ClientHello receveived from the peer) and becomes
2445 false once a handshake has been completed.
2446 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2447 sends a HelloRequest, but does not ensure that a handshake takes
2448 place. SSL_renegotiate_pending() is useful for checking if the
2449 client has followed the request.)
2452 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2453 By default, clients may request session resumption even during
2454 renegotiation (if session ID contexts permit); with this option,
2455 session resumption is possible only in the first handshake.
2457 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2458 more bits available for options that should not be part of
2459 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2462 *) Add some demos for certificate and certificate request creation.
2465 *) Make maximum certificate chain size accepted from the peer application
2466 settable (SSL*_get/set_max_cert_list()), as proposed by
2467 "Douglas E. Engert" <deengert@anl.gov>.
2470 *) Add support for shared libraries for Unixware-7
2471 (Boyd Lynn Gerber <gerberb@zenez.com>).
2474 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2475 be done prior to destruction. Use this to unload error strings from
2476 ENGINEs that load their own error strings. NB: This adds two new API
2477 functions to "get" and "set" this destroy handler in an ENGINE.
2480 *) Alter all existing ENGINE implementations (except "openssl" and
2481 "openbsd") to dynamically instantiate their own error strings. This
2482 makes them more flexible to be built both as statically-linked ENGINEs
2483 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2484 Also, add stub code to each that makes building them as self-contained
2485 shared-libraries easier (see README.ENGINE).
2488 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2489 implementations into applications that are completely implemented in
2490 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2491 commands that can be used to configure what shared-library to load and
2492 to control aspects of the way it is handled. Also, made an update to
2493 the README.ENGINE file that brings its information up-to-date and
2494 provides some information and instructions on the "dynamic" ENGINE
2495 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2498 *) Make it possible to unload ranges of ERR strings with a new
2499 "ERR_unload_strings" function.
2502 *) Add a copy() function to EVP_MD.
2505 *) Make EVP_MD routines take a context pointer instead of just the
2506 md_data void pointer.
2509 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2510 that the digest can only process a single chunk of data
2511 (typically because it is provided by a piece of
2512 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2513 is only going to provide a single chunk of data, and hence the
2514 framework needn't accumulate the data for oneshot drivers.
2517 *) As with "ERR", make it possible to replace the underlying "ex_data"
2518 functions. This change also alters the storage and management of global
2519 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2520 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2521 index counters. The API functions that use this state have been changed
2522 to take a "class_index" rather than pointers to the class's local STACK
2523 and counter, and there is now an API function to dynamically create new
2524 classes. This centralisation allows us to (a) plug a lot of the
2525 thread-safety problems that existed, and (b) makes it possible to clean
2526 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2527 such data would previously have always leaked in application code and
2528 workarounds were in place to make the memory debugging turn a blind eye
2529 to it. Application code that doesn't use this new function will still
2530 leak as before, but their memory debugging output will announce it now
2531 rather than letting it slide.
2533 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2534 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2535 has a return value to indicate success or failure.
2538 *) Make it possible to replace the underlying "ERR" functions such that the
2539 global state (2 LHASH tables and 2 locks) is only used by the "default"
2540 implementation. This change also adds two functions to "get" and "set"
2541 the implementation prior to it being automatically set the first time
2542 any other ERR function takes place. Ie. an application can call "get",
2543 pass the return value to a module it has just loaded, and that module
2544 can call its own "set" function using that value. This means the
2545 module's "ERR" operations will use (and modify) the error state in the
2546 application and not in its own statically linked copy of OpenSSL code.
2549 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2550 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2551 the operation, and provides a more encapsulated way for external code
2552 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2553 to use these functions rather than manually incrementing the counts.
2555 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2558 *) Add EVP test program.
2561 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2564 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2565 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2566 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2567 These allow a CRL to be built without having to access X509_CRL fields
2568 directly. Modify 'ca' application to use new functions.
2571 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2572 bug workarounds. Rollback attack detection is a security feature.
2573 The problem will only arise on OpenSSL servers when TLSv1 is not
2574 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2575 Software authors not wanting to support TLSv1 will have special reasons
2576 for their choice and can explicitly enable this option.
2577 [Bodo Moeller, Lutz Jaenicke]
2579 *) Rationalise EVP so it can be extended: don't include a union of
2580 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2581 (similar to those existing for EVP_CIPHER_CTX).
2586 EVP_MD_CTX_init(&md); /* new function call */
2587 EVP_DigestInit(&md, EVP_sha1());
2588 EVP_DigestUpdate(&md, in, len);
2589 EVP_DigestFinal(&md, out, NULL);
2590 EVP_MD_CTX_cleanup(&md); /* new function call */
2594 *) Make DES key schedule conform to the usual scheme, as well as
2595 correcting its structure. This means that calls to DES functions
2596 now have to pass a pointer to a des_key_schedule instead of a
2597 plain des_key_schedule (which was actually always a pointer
2600 des_key_schedule ks;
2602 des_set_key_checked(..., &ks);
2603 des_ncbc_encrypt(..., &ks, ...);
2605 (Note that a later change renames 'des_...' into 'DES_...'.)
2608 *) Initial reduction of linker bloat: the use of some functions, such as
2609 PEM causes large amounts of unused functions to be linked in due to
2610 poor organisation. For example pem_all.c contains every PEM function
2611 which has a knock on effect of linking in large amounts of (unused)
2612 ASN1 code. Grouping together similar functions and splitting unrelated
2613 functions prevents this.
2616 *) Cleanup of EVP macros.
2619 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2620 correct _ecb suffix.
2623 *) Add initial OCSP responder support to ocsp application. The
2624 revocation information is handled using the text based index
2625 use by the ca application. The responder can either handle
2626 requests generated internally, supplied in files (for example
2627 via a CGI script) or using an internal minimal server.
2630 *) Add configuration choices to get zlib compression for TLS.
2633 *) Changes to Kerberos SSL for RFC 2712 compliance:
2634 1. Implemented real KerberosWrapper, instead of just using
2635 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2636 2. Implemented optional authenticator field of KerberosWrapper.
2638 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2639 and authenticator structs; see crypto/krb5/.
2641 Generalized Kerberos calls to support multiple Kerberos libraries.
2642 [Vern Staats <staatsvr@asc.hpc.mil>,
2643 Jeffrey Altman <jaltman@columbia.edu>
2644 via Richard Levitte]
2646 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2647 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2648 values for each of the key sizes rather than having just
2649 parameters (and 'speed' generating keys each time).
2652 *) Speed up EVP routines.
2655 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2656 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2657 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2658 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2660 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2661 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2662 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2665 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2667 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2670 *) Added the OS2-EMX target.
2671 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2673 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2674 to support NCONF routines in extension code. New function CONF_set_nconf()
2675 to allow functions which take an NCONF to also handle the old LHASH
2676 structure: this means that the old CONF compatible routines can be
2677 retained (in particular wrt extensions) without having to duplicate the
2678 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2681 *) Enhance the general user interface with mechanisms for inner control
2682 and with possibilities to have yes/no kind of prompts.
2685 *) Change all calls to low level digest routines in the library and
2686 applications to use EVP. Add missing calls to HMAC_cleanup() and
2687 don't assume HMAC_CTX can be copied using memcpy().
2688 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2690 *) Add the possibility to control engines through control names but with
2691 arbitrary arguments instead of just a string.
2692 Change the key loaders to take a UI_METHOD instead of a callback
2693 function pointer. NOTE: this breaks binary compatibility with earlier
2694 versions of OpenSSL [engine].
2695 Adapt the nCipher code for these new conditions and add a card insertion
2699 *) Enhance the general user interface with mechanisms to better support
2700 dialog box interfaces, application-defined prompts, the possibility
2701 to use defaults (for example default passwords from somewhere else)
2702 and interrupts/cancellations.
2705 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2706 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2709 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2710 tidy up some unnecessarily weird code in 'sk_new()').
2711 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2713 *) Change the key loading routines for ENGINEs to use the same kind
2714 callback (pem_password_cb) as all other routines that need this
2718 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2719 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2720 than this minimum value is recommended.
2723 *) New random seeder for OpenVMS, using the system process statistics
2724 that are easily reachable.
2727 *) Windows apparently can't transparently handle global
2728 variables defined in DLLs. Initialisations such as:
2730 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2732 wont compile. This is used by the any applications that need to
2733 declare their own ASN1 modules. This was fixed by adding the option
2734 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2735 needed for static libraries under Win32.
2738 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2739 setting of purpose and trust fields. New X509_STORE trust and
2740 purpose functions and tidy up setting in other SSL functions.
2743 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2744 structure. These are inherited by X509_STORE_CTX when it is
2745 initialised. This allows various defaults to be set in the
2746 X509_STORE structure (such as flags for CRL checking and custom
2747 purpose or trust settings) for functions which only use X509_STORE_CTX
2748 internally such as S/MIME.
2750 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2751 trust settings if they are not set in X509_STORE. This allows X509_STORE
2752 purposes and trust (in S/MIME for example) to override any set by default.
2754 Add command line options for CRL checking to smime, s_client and s_server
2758 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2759 are set then the CRL is looked up in the X509_STORE structure and
2760 its validity and signature checked, then if the certificate is found
2761 in the CRL the verify fails with a revoked error.
2763 Various new CRL related callbacks added to X509_STORE_CTX structure.
2765 Command line options added to 'verify' application to support this.
2767 This needs some additional work, such as being able to handle multiple
2768 CRLs with different times, extension based lookup (rather than just
2769 by subject name) and ultimately more complete V2 CRL extension
2773 *) Add a general user interface API (crypto/ui/). This is designed
2774 to replace things like des_read_password and friends (backward
2775 compatibility functions using this new API are provided).
2776 The purpose is to remove prompting functions from the DES code
2777 section as well as provide for prompting through dialog boxes in
2778 a window system and the like.
2781 *) Add "ex_data" support to ENGINE so implementations can add state at a
2782 per-structure level rather than having to store it globally.
2785 *) Make it possible for ENGINE structures to be copied when retrieved by
2786 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2787 This causes the "original" ENGINE structure to act like a template,
2788 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2789 operational state can be localised to each ENGINE structure, despite the
2790 fact they all share the same "methods". New ENGINE structures returned in
2791 this case have no functional references and the return value is the single
2792 structural reference. This matches the single structural reference returned
2793 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2797 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2798 needs to match any other type at all we need to manually clear the
2802 *) Changes to the "openssl engine" utility to include;
2803 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2804 about an ENGINE's available control commands.
2805 - executing control commands from command line arguments using the
2806 '-pre' and '-post' switches. '-post' is only used if '-t' is
2807 specified and the ENGINE is successfully initialised. The syntax for
2808 the individual commands are colon-separated, for example;
2809 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2812 *) New dynamic control command support for ENGINEs. ENGINEs can now
2813 declare their own commands (numbers), names (strings), descriptions,
2814 and input types for run-time discovery by calling applications. A
2815 subset of these commands are implicitly classed as "executable"
2816 depending on their input type, and only these can be invoked through
2817 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2818 can be based on user input, config files, etc). The distinction is
2819 that "executable" commands cannot return anything other than a boolean
2820 result and can only support numeric or string input, whereas some
2821 discoverable commands may only be for direct use through
2822 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2823 pointers, or other custom uses. The "executable" commands are to
2824 support parameterisations of ENGINE behaviour that can be
2825 unambiguously defined by ENGINEs and used consistently across any
2826 OpenSSL-based application. Commands have been added to all the
2827 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2828 control over shared-library paths without source code alterations.
2831 *) Changed all ENGINE implementations to dynamically allocate their
2832 ENGINEs rather than declaring them statically. Apart from this being
2833 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2834 this also allows the implementations to compile without using the
2835 internal engine_int.h header.
2838 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2839 'const' value. Any code that should be able to modify a RAND_METHOD
2840 should already have non-const pointers to it (ie. they should only
2841 modify their own ones).
2844 *) Made a variety of little tweaks to the ENGINE code.
2845 - "atalla" and "ubsec" string definitions were moved from header files
2846 to C code. "nuron" string definitions were placed in variables
2847 rather than hard-coded - allowing parameterisation of these values
2848 later on via ctrl() commands.
2849 - Removed unused "#if 0"'d code.
2850 - Fixed engine list iteration code so it uses ENGINE_free() to release
2851 structural references.
2852 - Constified the RAND_METHOD element of ENGINE structures.
2853 - Constified various get/set functions as appropriate and added
2854 missing functions (including a catch-all ENGINE_cpy that duplicates
2855 all ENGINE values onto a new ENGINE except reference counts/state).
2856 - Removed NULL parameter checks in get/set functions. Setting a method
2857 or function to NULL is a way of cancelling out a previously set
2858 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2859 and doesn't justify the extra error symbols and code.
2860 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2861 flags from engine_int.h to engine.h.
2862 - Changed prototypes for ENGINE handler functions (init(), finish(),
2863 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2866 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2867 to the algorithm using long division. The binary algorithm can be
2868 used only if the modulus is odd. On 32-bit systems, it is faster
2869 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2870 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2871 up to 450 bits. In 64-bit environments, the binary algorithm
2872 appears to be advantageous for much longer moduli; here we use it
2873 for moduli up to 2048 bits.
2876 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2877 could not support the combine flag in choice fields.
2880 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2881 extensions from a certificate request to the certificate.
2884 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2885 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2886 file: this allows the display of the certificate about to be
2887 signed to be customised, to allow certain fields to be included
2888 or excluded and extension details. The old system didn't display
2889 multicharacter strings properly, omitted fields not in the policy
2890 and couldn't display additional details such as extensions.
2893 *) Function EC_POINTs_mul for multiple scalar multiplication
2894 of an arbitrary number of elliptic curve points
2895 \sum scalars[i]*points[i],
2896 optionally including the generator defined for the EC_GROUP:
2897 scalar*generator + \sum scalars[i]*points[i].
2899 EC_POINT_mul is a simple wrapper function for the typical case
2900 that the point list has just one item (besides the optional
2904 *) First EC_METHODs for curves over GF(p):
2906 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2907 operations and provides various method functions that can also
2908 operate with faster implementations of modular arithmetic.
2910 EC_GFp_mont_method() reuses most functions that are part of
2911 EC_GFp_simple_method, but uses Montgomery arithmetic.
2913 [Bodo Moeller; point addition and point doubling
2914 implementation directly derived from source code provided by
2915 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2917 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2918 crypto/ec/ec_lib.c):
2920 Curves are EC_GROUP objects (with an optional group generator)
2921 based on EC_METHODs that are built into the library.
2923 Points are EC_POINT objects based on EC_GROUP objects.
2925 Most of the framework would be able to handle curves over arbitrary
2926 finite fields, but as there are no obvious types for fields other
2927 than GF(p), some functions are limited to that for now.
2930 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2931 that the file contains a complete HTTP response.
2934 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2935 change the def and num file printf format specifier from "%-40sXXX"
2936 to "%-39s XXX". The latter will always guarantee a space after the
2937 field while the former will cause them to run together if the field
2938 is 40 of more characters long.
2941 *) Constify the cipher and digest 'method' functions and structures
2942 and modify related functions to take constant EVP_MD and EVP_CIPHER
2946 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2947 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2950 *) Modify EVP_Digest*() routines so they now return values. Although the
2951 internal software routines can never fail additional hardware versions
2955 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2957 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2958 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2961 ERR_R_NESTED_ASN1_ERROR
2963 ERR_R_MISSING_ASN1_EOS
2964 were 4 .. 9, conflicting with
2965 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2967 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2968 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2970 Add new error code 'ERR_R_INTERNAL_ERROR'.
2973 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2977 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2978 sets the subject name for a new request or supersedes the
2979 subject name in a given request. Formats that can be parsed are
2980 'CN=Some Name, OU=myOU, C=IT'
2982 'CN=Some Name/OU=myOU/C=IT'.
2984 Add options '-batch' and '-verbose' to 'openssl req'.
2985 [Massimiliano Pala <madwolf@hackmasters.net>]
2987 *) Introduce the possibility to access global variables through
2988 functions on platform were that's the best way to handle exporting
2989 global variables in shared libraries. To enable this functionality,
2990 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2991 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2992 is normally done by Configure or something similar).
2994 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2995 in the source file (foo.c) like this:
2997 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2998 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3000 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3001 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3003 OPENSSL_DECLARE_GLOBAL(int,foo);
3004 #define foo OPENSSL_GLOBAL_REF(foo)
3005 OPENSSL_DECLARE_GLOBAL(double,bar);
3006 #define bar OPENSSL_GLOBAL_REF(bar)
3008 The #defines are very important, and therefore so is including the
3009 header file everywhere where the defined globals are used.
3011 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3012 of ASN.1 items, but that structure is a bit different.
3014 The largest change is in util/mkdef.pl which has been enhanced with
3015 better and easier to understand logic to choose which symbols should
3016 go into the Windows .def files as well as a number of fixes and code
3017 cleanup (among others, algorithm keywords are now sorted
3018 lexicographically to avoid constant rewrites).
3021 *) In BN_div() keep a copy of the sign of 'num' before writing the
3022 result to 'rm' because if rm==num the value will be overwritten
3023 and produce the wrong result if 'num' is negative: this caused
3024 problems with BN_mod() and BN_nnmod().
3027 *) Function OCSP_request_verify(). This checks the signature on an
3028 OCSP request and verifies the signer certificate. The signer
3029 certificate is just checked for a generic purpose and OCSP request
3033 *) Add OCSP_check_validity() function to check the validity of OCSP
3034 responses. OCSP responses are prepared in real time and may only
3035 be a few seconds old. Simply checking that the current time lies
3036 between thisUpdate and nextUpdate max reject otherwise valid responses
3037 caused by either OCSP responder or client clock inaccuracy. Instead
3038 we allow thisUpdate and nextUpdate to fall within a certain period of
3039 the current time. The age of the response can also optionally be
3040 checked. Two new options -validity_period and -status_age added to
3044 *) If signature or public key algorithm is unrecognized print out its
3045 OID rather that just UNKNOWN.
3048 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3049 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3050 ID to be generated from the issuer certificate alone which can then be
3051 passed to OCSP_id_issuer_cmp().
3054 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3055 ASN1 modules to export functions returning ASN1_ITEM pointers
3056 instead of the ASN1_ITEM structures themselves. This adds several
3057 new macros which allow the underlying ASN1 function/structure to
3058 be accessed transparently. As a result code should not use ASN1_ITEM
3059 references directly (such as &X509_it) but instead use the relevant
3060 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3061 use of the new ASN1 code on platforms where exporting structures
3062 is problematical (for example in shared libraries) but exporting
3063 functions returning pointers to structures is not.
3066 *) Add support for overriding the generation of SSL/TLS session IDs.
3067 These callbacks can be registered either in an SSL_CTX or per SSL.
3068 The purpose of this is to allow applications to control, if they wish,
3069 the arbitrary values chosen for use as session IDs, particularly as it
3070 can be useful for session caching in multiple-server environments. A
3071 command-line switch for testing this (and any client code that wishes
3072 to use such a feature) has been added to "s_server".
3073 [Geoff Thorpe, Lutz Jaenicke]
3075 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3076 of the form '#if defined(...) || defined(...) || ...' and
3077 '#if !defined(...) && !defined(...) && ...'. This also avoids
3078 the growing number of special cases it was previously handling.
3081 *) Make all configuration macros available for application by making
3082 sure they are available in opensslconf.h, by giving them names starting
3083 with "OPENSSL_" to avoid conflicts with other packages and by making
3084 sure e_os2.h will cover all platform-specific cases together with
3086 Additionally, it is now possible to define configuration/platform-
3087 specific names (called "system identities"). In the C code, these
3088 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3089 macro with the name beginning with "OPENSSL_SYS_", which is determined
3090 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3094 *) New option -set_serial to 'req' and 'x509' this allows the serial
3095 number to use to be specified on the command line. Previously self
3096 signed certificates were hard coded with serial number 0 and the
3097 CA options of 'x509' had to use a serial number in a file which was
3101 *) New options to 'ca' utility to support V2 CRL entry extensions.
3102 Currently CRL reason, invalidity date and hold instruction are
3103 supported. Add new CRL extensions to V3 code and some new objects.
3106 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3107 disable standard block padding (aka PKCS#5 padding) in the EVP
3108 API, which was previously mandatory. This means that the data is
3109 not padded in any way and so the total length much be a multiple
3110 of the block size, otherwise an error occurs.
3113 *) Initial (incomplete) OCSP SSL support.
3116 *) New function OCSP_parse_url(). This splits up a URL into its host,
3117 port and path components: primarily to parse OCSP URLs. New -url
3118 option to ocsp utility.
3121 *) New nonce behavior. The return value of OCSP_check_nonce() now
3122 reflects the various checks performed. Applications can decide
3123 whether to tolerate certain situations such as an absent nonce
3124 in a response when one was present in a request: the ocsp application
3125 just prints out a warning. New function OCSP_add1_basic_nonce()
3126 this is to allow responders to include a nonce in a response even if
3127 the request is nonce-less.
3130 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3131 skipped when using openssl x509 multiple times on a single input file,
3132 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3135 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3136 set string type: to handle setting ASN1_TIME structures. Fix ca
3137 utility to correctly initialize revocation date of CRLs.
3140 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3141 the clients preferred ciphersuites and rather use its own preferences.
3142 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3143 Internet Explorer by ensuring unchanged hash method during stepup.
3144 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3147 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3148 to aes and add a new 'exist' option to print out symbols that don't
3152 *) Additional options to ocsp utility to allow flags to be set and
3153 additional certificates supplied.
3156 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3157 OCSP client a number of certificate to only verify the response
3161 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3162 handle the new API. Currently only ECB, CBC modes supported. Add new
3165 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3166 Encryption Standard (AES) Ciphersuites for Transport Layer
3167 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3168 not enabled by default and were not part of the "ALL" ciphersuite
3169 alias because they were not yet official; they could be
3170 explicitly requested by specifying the "AESdraft" ciphersuite
3171 group alias. In the final release of OpenSSL 0.9.7, the group
3172 alias is called "AES" and is part of "ALL".)
3173 [Ben Laurie, Steve Henson, Bodo Moeller]
3175 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3176 request to response.
3179 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3180 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3181 extract information from a certificate request. OCSP_response_create()
3182 creates a response and optionally adds a basic response structure.
3183 OCSP_basic_add1_status() adds a complete single response to a basic
3184 response and returns the OCSP_SINGLERESP structure just added (to allow
3185 extensions to be included for example). OCSP_basic_add1_cert() adds a
3186 certificate to a basic response and OCSP_basic_sign() signs a basic
3187 response with various flags. New helper functions ASN1_TIME_check()
3188 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3189 (converts ASN1_TIME to GeneralizedTime).
3192 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3193 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3194 structure from a certificate. X509_pubkey_digest() digests the public_key
3195 contents: this is used in various key identifiers.
3198 *) Make sk_sort() tolerate a NULL argument.
3199 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3201 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3202 passed by the function are trusted implicitly. If any of them signed the
3203 response then it is assumed to be valid and is not verified.
3206 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3207 to data. This was previously part of the PKCS7 ASN1 code. This
3208 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3209 [Steve Henson, reported by Kenneth R. Robinette
3210 <support@securenetterm.com>]
3212 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3213 routines: without these tracing memory leaks is very painful.
3214 Fix leaks in PKCS12 and PKCS7 routines.
3217 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3218 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3219 effectively meant GeneralizedTime would never be used. Now it
3220 is initialised to -1 but X509_time_adj() now has to check the value
3221 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3222 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3223 [Steve Henson, reported by Kenneth R. Robinette
3224 <support@securenetterm.com>]
3226 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3227 result in a zero length in the ASN1_INTEGER structure which was
3228 not consistent with the structure when d2i_ASN1_INTEGER() was used
3229 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3230 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3231 where it did not print out a minus for negative ASN1_INTEGER.
3234 *) Add summary printout to ocsp utility. The various functions which
3235 convert status values to strings have been renamed to:
3236 OCSP_response_status_str(), OCSP_cert_status_str() and
3237 OCSP_crl_reason_str() and are no longer static. New options
3238 to verify nonce values and to disable verification. OCSP response
3239 printout format cleaned up.
3242 *) Add additional OCSP certificate checks. These are those specified
3243 in RFC2560. This consists of two separate checks: the CA of the
3244 certificate being checked must either be the OCSP signer certificate
3245 or the issuer of the OCSP signer certificate. In the latter case the
3246 OCSP signer certificate must contain the OCSP signing extended key
3247 usage. This check is performed by attempting to match the OCSP
3248 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3249 in the OCSP_CERTID structures of the response.
3252 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3253 and related routines. This uses the standard OpenSSL certificate
3254 verify routines to perform initial checks (just CA validity) and
3255 to obtain the certificate chain. Then additional checks will be
3256 performed on the chain. Currently the root CA is checked to see
3257 if it is explicitly trusted for OCSP signing. This is used to set
3258 a root CA as a global signing root: that is any certificate that
3259 chains to that CA is an acceptable OCSP signing certificate.
3262 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3263 extensions from a separate configuration file.
3264 As when reading extensions from the main configuration file,
3265 the '-extensions ...' option may be used for specifying the
3267 [Massimiliano Pala <madwolf@comune.modena.it>]
3269 *) New OCSP utility. Allows OCSP requests to be generated or
3270 read. The request can be sent to a responder and the output
3271 parsed, outputed or printed in text form. Not complete yet:
3272 still needs to check the OCSP response validity.
3275 *) New subcommands for 'openssl ca':
3276 'openssl ca -status <serial>' prints the status of the cert with
3277 the given serial number (according to the index file).
3278 'openssl ca -updatedb' updates the expiry status of certificates
3280 [Massimiliano Pala <madwolf@comune.modena.it>]
3282 *) New '-newreq-nodes' command option to CA.pl. This is like
3283 '-newreq', but calls 'openssl req' with the '-nodes' option
3284 so that the resulting key is not encrypted.
3285 [Damien Miller <djm@mindrot.org>]
3287 *) New configuration for the GNU Hurd.
3288 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3290 *) Initial code to implement OCSP basic response verify. This
3291 is currently incomplete. Currently just finds the signer's
3292 certificate and verifies the signature on the response.
3295 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3296 value of OPENSSLDIR. This is available via the new '-d' option
3297 to 'openssl version', and is also included in 'openssl version -a'.
3300 *) Allowing defining memory allocation callbacks that will be given
3301 file name and line number information in additional arguments
3302 (a const char* and an int). The basic functionality remains, as
3303 well as the original possibility to just replace malloc(),
3304 realloc() and free() by functions that do not know about these
3305 additional arguments. To register and find out the current
3306 settings for extended allocation functions, the following
3307 functions are provided:
3309 CRYPTO_set_mem_ex_functions
3310 CRYPTO_set_locked_mem_ex_functions
3311 CRYPTO_get_mem_ex_functions
3312 CRYPTO_get_locked_mem_ex_functions
3314 These work the same way as CRYPTO_set_mem_functions and friends.
3315 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3316 extended allocation function is enabled.
3317 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3318 a conventional allocation function is enabled.
3319 [Richard Levitte, Bodo Moeller]
3321 *) Finish off removing the remaining LHASH function pointer casts.
3322 There should no longer be any prototype-casting required when using
3323 the LHASH abstraction, and any casts that remain are "bugs". See
3324 the callback types and macros at the head of lhash.h for details
3325 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3328 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3329 If /dev/[u]random devices are not available or do not return enough
3330 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3332 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3333 /etc/entropy will be queried once each in this sequence, quering stops
3334 when enough entropy was collected without querying more sockets.
3337 *) Change the Unix RAND_poll() variant to be able to poll several
3338 random devices, as specified by DEVRANDOM, until a sufficient amount
3339 of data has been collected. We spend at most 10 ms on each file
3340 (select timeout) and read in non-blocking mode. DEVRANDOM now
3341 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3342 (previously it was just the string "/dev/urandom"), so on typical
3343 platforms the 10 ms delay will never occur.
3344 Also separate out the Unix variant to its own file, rand_unix.c.
3345 For VMS, there's a currently-empty rand_vms.c.
3348 *) Move OCSP client related routines to ocsp_cl.c. These
3349 provide utility functions which an application needing
3350 to issue a request to an OCSP responder and analyse the
3351 response will typically need: as opposed to those which an
3352 OCSP responder itself would need which will be added later.
3354 OCSP_request_sign() signs an OCSP request with an API similar
3355 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3356 response. OCSP_response_get1_basic() extracts basic response
3357 from response. OCSP_resp_find_status(): finds and extracts status
3358 information from an OCSP_CERTID structure (which will be created
3359 when the request structure is built). These are built from lower
3360 level functions which work on OCSP_SINGLERESP structures but
3361 wont normally be used unless the application wishes to examine
3362 extensions in the OCSP response for example.
3364 Replace nonce routines with a pair of functions.
3365 OCSP_request_add1_nonce() adds a nonce value and optionally
3366 generates a random value. OCSP_check_nonce() checks the
3367 validity of the nonce in an OCSP response.
3370 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3371 This doesn't copy the supplied OCSP_CERTID and avoids the
3372 need to free up the newly created id. Change return type
3373 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3374 This can then be used to add extensions to the request.
3375 Deleted OCSP_request_new(), since most of its functionality
3376 is now in OCSP_REQUEST_new() (and the case insensitive name
3377 clash) apart from the ability to set the request name which
3378 will be added elsewhere.
3381 *) Update OCSP API. Remove obsolete extensions argument from
3382 various functions. Extensions are now handled using the new
3383 OCSP extension code. New simple OCSP HTTP function which
3384 can be used to send requests and parse the response.
3387 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3388 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3389 uses the special reorder version of SET OF to sort the attributes
3390 and reorder them to match the encoded order. This resolves a long
3391 standing problem: a verify on a PKCS7 structure just after signing
3392 it used to fail because the attribute order did not match the
3393 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3394 it uses the received order. This is necessary to tolerate some broken
3395 software that does not order SET OF. This is handled by encoding
3396 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3397 to produce the required SET OF.
3400 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3401 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3402 files to get correct declarations of the ASN.1 item variables.
3405 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3406 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3407 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3408 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3409 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3410 ASN1_ITEM and no wrapper functions.
3413 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3414 replace the old function pointer based I/O routines. Change most of
3415 the *_d2i_bio() and *_d2i_fp() functions to use these.
3418 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3419 lines, recognice more "algorithms" that can be deselected, and make
3420 it complain about algorithm deselection that isn't recognised.
3423 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3424 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3425 to use new functions. Add NO_ASN1_OLD which can be set to remove
3426 some old style ASN1 functions: this can be used to determine if old
3427 code will still work when these eventually go away.
3430 *) New extension functions for OCSP structures, these follow the
3431 same conventions as certificates and CRLs.
3434 *) New function X509V3_add1_i2d(). This automatically encodes and
3435 adds an extension. Its behaviour can be customised with various
3436 flags to append, replace or delete. Various wrappers added for
3437 certifcates and CRLs.
3440 *) Fix to avoid calling the underlying ASN1 print routine when
3441 an extension cannot be parsed. Correct a typo in the
3442 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3445 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3446 entries for variables.
3449 *) Add functionality to apps/openssl.c for detecting locking
3450 problems: As the program is single-threaded, all we have
3451 to do is register a locking callback using an array for
3452 storing which locks are currently held by the program.
3455 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3456 SSL_get_ex_data_X509_STORE_idx(), which is used in
3457 ssl_verify_cert_chain() and thus can be called at any time
3458 during TLS/SSL handshakes so that thread-safety is essential.
3459 Unfortunately, the ex_data design is not at all suited
3460 for multi-threaded use, so it probably should be abolished.
3463 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3464 [Broadcom, tweaked and integrated by Geoff Thorpe]
3466 *) Move common extension printing code to new function
3467 X509V3_print_extensions(). Reorganise OCSP print routines and
3468 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3471 *) New function X509_signature_print() to remove duplication in some
3475 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3476 set (this was treated exactly the same as SET OF previously). This
3477 is used to reorder the STACK representing the structure to match the
3478 encoding. This will be used to get round a problem where a PKCS7
3479 structure which was signed could not be verified because the STACK
3480 order did not reflect the encoded order.
3483 *) Reimplement the OCSP ASN1 module using the new code.
3486 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3487 for its ASN1 operations. The old style function pointers still exist
3488 for now but they will eventually go away.
3491 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3492 completely replaces the old ASN1 functionality with a table driven
3493 encoder and decoder which interprets an ASN1_ITEM structure describing
3494 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3495 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3496 has also been converted to the new form.
3499 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3500 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3501 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3502 for negative moduli.
3505 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3506 of not touching the result's sign bit.
3509 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3513 *) Changed the LHASH code to use prototypes for callbacks, and created
3514 macros to declare and implement thin (optionally static) functions
3515 that provide type-safety and avoid function pointer casting for the
3516 type-specific callbacks.
3519 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3521 [Veers Staats <staatsvr@asc.hpc.mil>,
3522 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3524 *) Reformat the FAQ so the different questions and answers can be divided
3525 in sections depending on the subject.
3528 *) Have the zlib compression code load ZLIB.DLL dynamically under
3532 *) New function BN_mod_sqrt for computing square roots modulo a prime
3533 (using the probabilistic Tonelli-Shanks algorithm unless
3534 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3535 be handled deterministically).
3536 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3538 *) Make BN_mod_inverse faster by explicitly handling small quotients
3539 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3540 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3543 *) New function BN_kronecker.
3546 *) Fix BN_gcd so that it works on negative inputs; the result is
3547 positive unless both parameters are zero.
3548 Previously something reasonably close to an infinite loop was
3549 possible because numbers could be growing instead of shrinking
3550 in the implementation of Euclid's algorithm.
3553 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3554 sign of the number in question.
3556 Fix BN_is_word(a,w) to work correctly for w == 0.
3558 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3559 because its test if the absolute value of 'a' equals 'w'.
3560 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3561 it exists mostly for use in the implementations of BN_is_zero(),
3562 BN_is_one(), and BN_is_word().
3565 *) New function BN_swap.
3568 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3569 the exponentiation functions are more likely to produce reasonable
3570 results on negative inputs.
3573 *) Change BN_mod_mul so that the result is always non-negative.
3574 Previously, it could be negative if one of the factors was negative;
3575 I don't think anyone really wanted that behaviour.
3578 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3579 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3580 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3581 and add new functions:
3590 BN_mod_lshift1_quick
3594 These functions always generate non-negative results.
3596 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3597 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3599 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3600 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3601 be reduced modulo m.
3602 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3605 The following entry accidentily appeared in the CHANGES file
3606 distributed with OpenSSL 0.9.7. The modifications described in
3607 it do *not* apply to OpenSSL 0.9.7.
3609 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3610 was actually never needed) and in BN_mul(). The removal in BN_mul()
3611 required a small change in bn_mul_part_recursive() and the addition
3612 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3613 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3614 bn_sub_words() and bn_add_words() except they take arrays with
3619 *) In 'openssl passwd', verify passwords read from the terminal
3620 unless the '-salt' option is used (which usually means that
3621 verification would just waste user's time since the resulting
3622 hash is going to be compared with some given password hash)
3623 or the new '-noverify' option is used.
3625 This is an incompatible change, but it does not affect
3626 non-interactive use of 'openssl passwd' (passwords on the command
3627 line, '-stdin' option, '-in ...' option) and thus should not
3631 *) Remove all references to RSAref, since there's no more need for it.
3634 *) Make DSO load along a path given through an environment variable
3635 (SHLIB_PATH) with shl_load().
3638 *) Constify the ENGINE code as a result of BIGNUM constification.
3639 Also constify the RSA code and most things related to it. In a
3640 few places, most notable in the depth of the ASN.1 code, ugly
3641 casts back to non-const were required (to be solved at a later
3645 *) Make it so the openssl application has all engines loaded by default.
3648 *) Constify the BIGNUM routines a little more.
3651 *) Add the following functions:
3653 ENGINE_load_cswift()
3655 ENGINE_load_atalla()
3657 ENGINE_load_builtin_engines()
3659 That way, an application can itself choose if external engines that
3660 are built-in in OpenSSL shall ever be used or not. The benefit is
3661 that applications won't have to be linked with libdl or other dso
3662 libraries unless it's really needed.
3664 Changed 'openssl engine' to load all engines on demand.
3665 Changed the engine header files to avoid the duplication of some
3666 declarations (they differed!).
3669 *) 'openssl engine' can now list capabilities.
3672 *) Better error reporting in 'openssl engine'.
3675 *) Never call load_dh_param(NULL) in s_server.
3678 *) Add engine application. It can currently list engines by name and
3679 identity, and test if they are actually available.
3682 *) Improve RPM specification file by forcing symbolic linking and making
3683 sure the installed documentation is also owned by root.root.
3684 [Damien Miller <djm@mindrot.org>]
3686 *) Give the OpenSSL applications more possibilities to make use of
3687 keys (public as well as private) handled by engines.
3690 *) Add OCSP code that comes from CertCo.
3693 *) Add VMS support for the Rijndael code.
3696 *) Added untested support for Nuron crypto accelerator.
3699 *) Add support for external cryptographic devices. This code was
3700 previously distributed separately as the "engine" branch.
3701 [Geoff Thorpe, Richard Levitte]
3703 *) Rework the filename-translation in the DSO code. It is now possible to
3704 have far greater control over how a "name" is turned into a filename
3705 depending on the operating environment and any oddities about the
3706 different shared library filenames on each system.
3709 *) Support threads on FreeBSD-elf in Configure.
3712 *) Fix for SHA1 assembly problem with MASM: it produces
3713 warnings about corrupt line number information when assembling
3714 with debugging information. This is caused by the overlapping
3716 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3719 NCONF_get_number() has no error checking at all. As a replacement,
3720 NCONF_get_number_e() is defined (_e for "error checking") and is
3721 promoted strongly. The old NCONF_get_number is kept around for
3722 binary backward compatibility.
3723 Make it possible for methods to load from something other than a BIO,
3724 by providing a function pointer that is given a name instead of a BIO.
3725 For example, this could be used to load configuration data from an
3729 *) Fix for non blocking accept BIOs. Added new I/O special reason
3730 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3731 with non blocking I/O was not possible because no retry code was
3732 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3736 *) Added the beginnings of Rijndael support.
3739 *) Fix for bug in DirectoryString mask setting. Add support for
3740 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3741 to allow certificate printing to more controllable, additional
3742 'certopt' option to 'x509' to allow new printing options to be
3746 *) Clean old EAY MD5 hack from e_os.h.
3749 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3751 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3752 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3753 [Joe Orton, Steve Henson]
3755 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3757 *) Fix additional bug revealed by the NISCC test suite:
3759 Stop bug triggering large recursion when presented with
3760 certain ASN.1 tags (CVE-2003-0851)
3763 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3765 *) Fix various bugs revealed by running the NISCC test suite:
3767 Stop out of bounds reads in the ASN1 code when presented with
3768 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3770 If verify callback ignores invalid public key errors don't try to check
3771 certificate signature with the NULL public key.
3775 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3776 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3780 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3781 extra data after the compression methods not only for TLS 1.0
3782 but also for SSL 3.0 (as required by the specification).
3783 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3785 *) Change X509_certificate_type() to mark the key as exported/exportable
3786 when it's 512 *bits* long, not 512 bytes.
3789 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3791 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3792 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3793 a protocol version number mismatch like a decryption error
3794 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3797 *) Turn on RSA blinding by default in the default implementation
3798 to avoid a timing attack. Applications that don't want it can call
3799 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3800 They would be ill-advised to do so in most cases.
3801 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3803 *) Change RSA blinding code so that it works when the PRNG is not
3804 seeded (in this case, the secret RSA exponent is abused as
3805 an unpredictable seed -- if it is not unpredictable, there
3806 is no point in blinding anyway). Make RSA blinding thread-safe
3807 by remembering the creator's thread ID in rsa->blinding and
3808 having all other threads use local one-time blinding factors
3809 (this requires more computation than sharing rsa->blinding, but
3810 avoids excessive locking; and if an RSA object is not shared
3811 between threads, blinding will still be very fast).
3814 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3816 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3817 via timing by performing a MAC computation even if incorrrect
3818 block cipher padding has been found. This is a countermeasure
3819 against active attacks where the attacker has to distinguish
3820 between bad padding and a MAC verification error. (CVE-2003-0078)
3822 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3823 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3824 Martin Vuagnoux (EPFL, Ilion)]
3826 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3828 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3829 memory from it's contents. This is done with a counter that will
3830 place alternating values in each byte. This can be used to solve
3831 two issues: 1) the removal of calls to memset() by highly optimizing
3832 compilers, and 2) cleansing with other values than 0, since those can
3833 be read through on certain media, for example a swap space on disk.
3836 *) Bugfix: client side session caching did not work with external caching,
3837 because the session->cipher setting was not restored when reloading
3838 from the external cache. This problem was masked, when
3839 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3840 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3843 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3844 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3845 [Zeev Lieber <zeev-l@yahoo.com>]
3847 *) Undo an undocumented change introduced in 0.9.6e which caused
3848 repeated calls to OpenSSL_add_all_ciphers() and
3849 OpenSSL_add_all_digests() to be ignored, even after calling
3853 *) Change the default configuration reader to deal with last line not
3854 being properly terminated.
3857 *) Change X509_NAME_cmp() so it applies the special rules on handling
3858 DN values that are of type PrintableString, as well as RDNs of type
3859 emailAddress where the value has the type ia5String.
3860 [stefank@valicert.com via Richard Levitte]
3862 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3863 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3864 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3865 the bitwise-OR of the two for use by the majority of applications
3866 wanting this behaviour, and update the docs. The documented
3867 behaviour and actual behaviour were inconsistent and had been
3868 changing anyway, so this is more a bug-fix than a behavioural
3870 [Geoff Thorpe, diagnosed by Nadav Har'El]
3872 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3873 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3876 *) Fix initialization code race conditions in
3877 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3878 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3879 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3880 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3881 ssl2_get_cipher_by_char(),
3882 ssl3_get_cipher_by_char().
3883 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3885 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3886 the cached sessions are flushed, as the remove_cb() might use ex_data
3887 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3888 (see [openssl.org #212]).
3889 [Geoff Thorpe, Lutz Jaenicke]
3891 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3892 length, instead of the encoding length to d2i_ASN1_OBJECT.
3895 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3897 *) [In 0.9.6g-engine release:]
3898 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3899 [Lynn Gazis <lgazis@rainbow.com>]
3901 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3903 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3904 and get fix the header length calculation.
3905 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3906 Alon Kantor <alonk@checkpoint.com> (and others),
3909 *) Use proper error handling instead of 'assertions' in buffer
3910 overflow checks added in 0.9.6e. This prevents DoS (the
3911 assertions could call abort()).
3912 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3914 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3916 *) Add various sanity checks to asn1_get_length() to reject
3917 the ASN1 length bytes if they exceed sizeof(long), will appear
3918 negative or the content length exceeds the length of the
3920 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3922 *) Fix cipher selection routines: ciphers without encryption had no flags
3923 for the cipher strength set and where therefore not handled correctly
3924 by the selection routines (PR #130).
3927 *) Fix EVP_dsa_sha macro.
3931 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3932 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3933 that was added in OpenSSL 0.9.6d.
3935 As the countermeasure turned out to be incompatible with some
3936 broken SSL implementations, the new option is part of SSL_OP_ALL.
3937 SSL_OP_ALL is usually employed when compatibility with weird SSL
3938 implementations is desired (e.g. '-bugs' option to 's_client' and
3939 's_server'), so the new option is automatically set in many
3943 *) Changes in security patch:
3945 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3946 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3947 Air Force Materiel Command, USAF, under agreement number
3950 *) Add various sanity checks to asn1_get_length() to reject
3951 the ASN1 length bytes if they exceed sizeof(long), will appear
3952 negative or the content length exceeds the length of the
3953 supplied buffer. (CVE-2002-0659)
3954 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3956 *) Assertions for various potential buffer overflows, not known to
3958 [Ben Laurie (CHATS)]
3960 *) Various temporary buffers to hold ASCII versions of integers were
3961 too small for 64 bit platforms. (CVE-2002-0655)
3962 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3964 *) Remote buffer overflow in SSL3 protocol - an attacker could
3965 supply an oversized session ID to a client. (CVE-2002-0656)
3966 [Ben Laurie (CHATS)]
3968 *) Remote buffer overflow in SSL2 protocol - an attacker could
3969 supply an oversized client master key. (CVE-2002-0656)
3970 [Ben Laurie (CHATS)]
3972 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3974 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3975 encoded as NULL) with id-dsa-with-sha1.
3976 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3978 *) Check various X509_...() return values in apps/req.c.
3979 [Nils Larsch <nla@trustcenter.de>]
3981 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3982 an end-of-file condition would erronously be flagged, when the CRLF
3983 was just at the end of a processed block. The bug was discovered when
3984 processing data through a buffering memory BIO handing the data to a
3985 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3986 <ptsekov@syntrex.com> and Nedelcho Stanev.
3989 *) Implement a countermeasure against a vulnerability recently found
3990 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3991 before application data chunks to avoid the use of known IVs
3992 with data potentially chosen by the attacker.
3995 *) Fix length checks in ssl3_get_client_hello().
3998 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3999 to prevent ssl3_read_internal() from incorrectly assuming that
4000 ssl3_read_bytes() found application data while handshake
4001 processing was enabled when in fact s->s3->in_read_app_data was
4002 merely automatically cleared during the initial handshake.
4003 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4005 *) Fix object definitions for Private and Enterprise: they were not
4006 recognized in their shortname (=lowercase) representation. Extend
4007 obj_dat.pl to issue an error when using undefined keywords instead
4008 of silently ignoring the problem (Svenning Sorensen
4009 <sss@sss.dnsalias.net>).
4012 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4013 generators, i.e. generators other than 2 and 5. (Previously, the
4014 code did not properly initialise the 'add' and 'rem' values to
4015 BN_generate_prime().)
4017 In the new general case, we do not insist that 'generator' is
4018 actually a primitive root: This requirement is rather pointless;
4019 a generator of the order-q subgroup is just as good, if not
4023 *) Map new X509 verification errors to alerts. Discovered and submitted by
4024 Tom Wu <tom@arcot.com>.
4027 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4028 returning non-zero before the data has been completely received
4029 when using non-blocking I/O.
4030 [Bodo Moeller; problem pointed out by John Hughes]
4032 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4033 [Ben Laurie, Lutz Jaenicke]
4035 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4036 Yoram Zahavi <YoramZ@gilian.com>).
4039 *) Add information about CygWin 1.3 and on, and preserve proper
4040 configuration for the versions before that.
4041 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4043 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4044 check whether we deal with a copy of a session and do not delete from
4045 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4046 <izhar@checkpoint.com>.
4049 *) Do not store session data into the internal session cache, if it
4050 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4051 flag is set). Proposed by Aslam <aslam@funk.com>.
4054 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4058 *) [In 0.9.6d-engine release:]
4059 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4060 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4062 *) Add the configuration target linux-s390x.
4063 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4065 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4066 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4067 variable as an indication that a ClientHello message has been
4068 received. As the flag value will be lost between multiple
4069 invocations of ssl3_accept when using non-blocking I/O, the
4070 function may not be aware that a handshake has actually taken
4071 place, thus preventing a new session from being added to the
4074 To avoid this problem, we now set s->new_session to 2 instead of
4075 using a local variable.
4076 [Lutz Jaenicke, Bodo Moeller]
4078 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4079 if the SSL_R_LENGTH_MISMATCH error is detected.
4080 [Geoff Thorpe, Bodo Moeller]
4082 *) New 'shared_ldflag' column in Configure platform table.
4085 *) Fix EVP_CIPHER_mode macro.
4086 ["Dan S. Camper" <dan@bti.net>]
4088 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4089 type, we must throw them away by setting rr->length to 0.
4090 [D P Chang <dpc@qualys.com>]
4092 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4094 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4095 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4096 worked incorrectly for those cases where range = 10..._2 and
4097 3*range is two bits longer than range.)
4100 *) Only add signing time to PKCS7 structures if it is not already
4104 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4105 OBJ_ld_ce should be OBJ_id_ce.
4106 Also some ip-pda OIDs in crypto/objects/objects.txt were
4107 incorrect (cf. RFC 3039).
4108 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4110 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4111 returns early because it has nothing to do.
4112 [Andy Schneider <andy.schneider@bjss.co.uk>]
4114 *) [In 0.9.6c-engine release:]
4115 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4116 [Andy Schneider <andy.schneider@bjss.co.uk>]
4118 *) [In 0.9.6c-engine release:]
4119 Add support for Cryptographic Appliance's keyserver technology.
4120 (Use engine 'keyclient')
4121 [Cryptographic Appliances and Geoff Thorpe]
4123 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4124 is called via tools/c89.sh because arguments have to be
4125 rearranged (all '-L' options must appear before the first object
4127 [Richard Shapiro <rshapiro@abinitio.com>]
4129 *) [In 0.9.6c-engine release:]
4130 Add support for Broadcom crypto accelerator cards, backported
4132 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4134 *) [In 0.9.6c-engine release:]
4135 Add support for SureWare crypto accelerator cards from
4136 Baltimore Technologies. (Use engine 'sureware')
4137 [Baltimore Technologies and Mark Cox]
4139 *) [In 0.9.6c-engine release:]
4140 Add support for crypto accelerator cards from Accelerated
4141 Encryption Processing, www.aep.ie. (Use engine 'aep')
4142 [AEP Inc. and Mark Cox]
4144 *) Add a configuration entry for gcc on UnixWare.
4145 [Gary Benson <gbenson@redhat.com>]
4147 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4148 messages are stored in a single piece (fixed-length part and
4149 variable-length part combined) and fix various bugs found on the way.
4152 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4153 instead. BIO_gethostbyname() does not know what timeouts are
4154 appropriate, so entries would stay in cache even when they have
4156 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4158 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4159 faced with a pathologically small ClientHello fragment that does
4160 not contain client_version: Instead of aborting with an error,
4161 simply choose the highest available protocol version (i.e.,
4162 TLS 1.0 unless it is disabled). In practice, ClientHello
4163 messages are never sent like this, but this change gives us
4164 strictly correct behaviour at least for TLS.
4167 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4168 never resets s->method to s->ctx->method when called from within
4169 one of the SSL handshake functions.
4170 [Bodo Moeller; problem pointed out by Niko Baric]
4172 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4173 (sent using the client's version number) if client_version is
4174 smaller than the protocol version in use. Also change
4175 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4176 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4177 the client will at least see that alert.
4180 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4184 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4185 client receives HelloRequest while in a handshake.
4186 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4188 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4189 should end in 'break', not 'goto end' which circuments various
4190 cleanups done in state SSL_ST_OK. But session related stuff
4191 must be disabled for SSL_ST_OK in the case that we just sent a
4194 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4195 before just sending a HelloRequest.
4196 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4198 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4199 reveal whether illegal block cipher padding was found or a MAC
4200 verification error occured. (Neither SSLerr() codes nor alerts
4201 are directly visible to potential attackers, but the information
4202 may leak via logfiles.)
4204 Similar changes are not required for the SSL 2.0 implementation
4205 because the number of padding bytes is sent in clear for SSL 2.0,
4206 and the extra bytes are just ignored. However ssl/s2_pkt.c
4207 failed to verify that the purported number of padding bytes is in
4211 *) Add OpenUNIX-8 support including shared libraries
4212 (Boyd Lynn Gerber <gerberb@zenez.com>).
4215 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4216 'wristwatch attack' using huge encoding parameters (cf.
4217 James H. Manger's CRYPTO 2001 paper). Note that the
4218 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4219 encoding parameters and hence was not vulnerable.
4222 *) BN_sqr() bug fix.
4223 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4225 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4226 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4227 followed by modular reduction.
4228 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4230 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4231 equivalent based on BN_pseudo_rand() instead of BN_rand().
4234 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4235 This function was broken, as the check for a new client hello message
4236 to handle SGC did not allow these large messages.
4237 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4240 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4243 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4244 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4247 *) Rework the configuration and shared library support for Tru64 Unix.
4248 The configuration part makes use of modern compiler features and
4249 still retains old compiler behavior for those that run older versions
4250 of the OS. The shared library support part includes a variant that
4251 uses the RPATH feature, and is available through the special
4252 configuration target "alpha-cc-rpath", which will never be selected
4254 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4256 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4257 with the same message size as in ssl3_get_certificate_request().
4258 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4259 messages might inadvertently be reject as too long.
4260 [Petr Lampa <lampa@fee.vutbr.cz>]
4262 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4265 *) Modified SSL library such that the verify_callback that has been set
4266 specificly for an SSL object with SSL_set_verify() is actually being
4267 used. Before the change, a verify_callback set with this function was
4268 ignored and the verify_callback() set in the SSL_CTX at the time of
4269 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4270 to allow the necessary settings.
4273 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4274 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4275 done automatically (in contradiction to the requirements of the C
4276 standard). This made problems when used from OpenSSH.
4279 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4280 dh->length and always used
4282 BN_rand_range(priv_key, dh->p).
4284 BN_rand_range() is not necessary for Diffie-Hellman, and this
4285 specific range makes Diffie-Hellman unnecessarily inefficient if
4286 dh->length (recommended exponent length) is much smaller than the
4287 length of dh->p. We could use BN_rand_range() if the order of
4288 the subgroup was stored in the DH structure, but we only have
4293 BN_rand(priv_key, l, ...)
4295 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4301 RSA_eay_public_encrypt
4302 RSA_eay_private_decrypt
4303 RSA_eay_private_encrypt (signing)
4304 RSA_eay_public_decrypt (signature verification)
4306 (default implementations for RSA_public_encrypt,
4307 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4308 always reject numbers >= n.
4311 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4312 to synchronize access to 'locking_thread'. This is necessary on
4313 systems where access to 'locking_thread' (an 'unsigned long'
4314 variable) is not atomic.
4317 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4318 *before* setting the 'crypto_lock_rand' flag. The previous code had
4319 a race condition if 0 is a valid thread ID.
4320 [Travis Vitek <vitek@roguewave.com>]
4322 *) Add support for shared libraries under Irix.
4323 [Albert Chin-A-Young <china@thewrittenword.com>]
4325 *) Add configuration option to build on Linux on both big-endian and
4327 [Ralf Baechle <ralf@uni-koblenz.de>]
4329 *) Add the possibility to create shared libraries on HP-UX.
4332 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4334 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4335 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4336 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4337 PRNG state recovery was possible based on the output of
4338 one PRNG request appropriately sized to gain knowledge on
4339 'md' followed by enough consecutive 1-byte PRNG requests
4340 to traverse all of 'state'.
4342 1. When updating 'md_local' (the current thread's copy of 'md')
4343 during PRNG output generation, hash all of the previous
4344 'md_local' value, not just the half used for PRNG output.
4346 2. Make the number of bytes from 'state' included into the hash
4347 independent from the number of PRNG bytes requested.
4349 The first measure alone would be sufficient to avoid
4350 Markku-Juhani's attack. (Actually it had never occurred
4351 to me that the half of 'md_local' used for chaining was the
4352 half from which PRNG output bytes were taken -- I had always
4353 assumed that the secret half would be used.) The second
4354 measure makes sure that additional data from 'state' is never
4355 mixed into 'md_local' in small portions; this heuristically
4356 further strengthens the PRNG.
4359 *) Fix crypto/bn/asm/mips3.s.
4362 *) When only the key is given to "enc", the IV is undefined. Print out
4363 an error message in this case.
4366 *) Handle special case when X509_NAME is empty in X509 printing routines.
4369 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4370 positive and less than q.
4373 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4374 used: it isn't thread safe and the add_lock_callback should handle
4376 [Paul Rose <Paul.Rose@bridge.com>]
4378 *) Verify that incoming data obeys the block size in
4379 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4383 [Ulf Möller, Bodo Möller]
4385 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4386 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4387 when fixing the server behaviour for backwards-compatible 'client
4388 hello' messages. (Note that the attack is impractical against
4389 SSL 3.0 and TLS 1.0 anyway because length and version checking
4390 means that the probability of guessing a valid ciphertext is
4391 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4394 Before 0.9.5, the countermeasure (hide the error by generating a
4395 random 'decryption result') did not work properly because
4396 ERR_clear_error() was missing, meaning that SSL_get_error() would
4397 detect the supposedly ignored error.
4399 Both problems are now fixed.
4402 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4403 (previously it was 1024).
4406 *) Fix for compatibility mode trust settings: ignore trust settings
4407 unless some valid trust or reject settings are present.
4410 *) Fix for blowfish EVP: its a variable length cipher.
4413 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4414 parameters in DSA public key structures and return an error in the
4415 DSA routines if parameters are absent.
4418 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4419 in the current directory if neither $RANDFILE nor $HOME was set.
4420 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4421 caused some confusion to Windows users who haven't defined $HOME.
4422 Thus RAND_file_name() is changed again: e_os.h can define a
4423 DEFAULT_HOME, which will be used if $HOME is not set.
4424 For Windows, we use "C:"; on other platforms, we still require
4425 environment variables.
4427 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4428 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4429 having multiple threads call RAND_poll() concurrently.
4432 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4433 combination of a flag and a thread ID variable.
4434 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4435 flag), *other* threads can enter ssleay_add_bytes without obeying
4436 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4437 that they do not hold after the first thread unsets add_do_not_lock).
4440 *) Change bctest again: '-x' expressions are not available in all
4444 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4446 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4447 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4449 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4450 the default extension for executables, if any. Also, make the perl
4451 scripts that use symlink() to test if it really exists and use "cp"
4452 if it doesn't. All this made OpenSSL compilable and installable in
4456 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4457 If SEQUENCE is length is indefinite just set c->slen to the total
4458 amount of data available.
4459 [Steve Henson, reported by shige@FreeBSD.org]
4460 [This change does not apply to 0.9.7.]
4462 *) Change bctest to avoid here-documents inside command substitution
4463 (workaround for FreeBSD /bin/sh bug).
4464 For compatibility with Ultrix, avoid shell functions (introduced
4465 in the bctest version that searches along $PATH).
4468 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4469 with des_encrypt() defined on some operating systems, like Solaris
4473 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4474 On the Importance of Eliminating Errors in Cryptographic
4475 Computations, J. Cryptology 14 (2001) 2, 101-119,
4476 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4479 *) MIPS assembler BIGNUM division bug fix.
4482 *) Disabled incorrect Alpha assembler code.
4485 *) Fix PKCS#7 decode routines so they correctly update the length
4486 after reading an EOC for the EXPLICIT tag.
4488 [This change does not apply to 0.9.7.]
4490 *) Fix bug in PKCS#12 key generation routines. This was triggered
4491 if a 3DES key was generated with a 0 initial byte. Include
4492 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4493 (but broken) behaviour.
4496 *) Enhance bctest to search for a working bc along $PATH and print
4498 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4500 *) Fix memory leaks in err.c: free err_data string if necessary;
4501 don't write to the wrong index in ERR_set_error_data.
4504 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4508 *) Replace rdtsc with _emit statements for VC++ version 5.
4509 [Jeremy Cooper <jeremy@baymoo.org>]
4511 *) Make it possible to reuse SSLv2 sessions.
4514 *) In copy_email() check for >= 0 as a return value for
4515 X509_NAME_get_index_by_NID() since 0 is a valid index.
4516 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4518 *) Avoid coredump with unsupported or invalid public keys by checking if
4519 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4520 PKCS7_verify() fails with non detached data.
4523 *) Don't use getenv in library functions when run as setuid/setgid.
4524 New function OPENSSL_issetugid().
4527 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4528 due to incorrect handling of multi-threading:
4530 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4532 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4534 3. Count how many times MemCheck_off() has been called so that
4535 nested use can be treated correctly. This also avoids
4536 inband-signalling in the previous code (which relied on the
4537 assumption that thread ID 0 is impossible).
4540 *) Add "-rand" option also to s_client and s_server.
4543 *) Fix CPU detection on Irix 6.x.
4544 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4545 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4547 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4550 [This change does not apply to 0.9.7.]
4552 *) Use the cached encoding of an X509_NAME structure rather than
4553 copying it. This is apparently the reason for the libsafe "errors"
4554 but the code is actually correct.
4557 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4558 Bleichenbacher's DSA attack.
4559 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4560 to be set and top=0 forces the highest bit to be set; top=-1 is new
4561 and leaves the highest bit random.
4562 [Ulf Moeller, Bodo Moeller]
4564 *) In the NCONF_...-based implementations for CONF_... queries
4565 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4566 a temporary CONF structure with the data component set to NULL
4567 (which gives segmentation faults in lh_retrieve).
4568 Instead, use NULL for the CONF pointer in CONF_get_string and
4569 CONF_get_number (which may use environment variables) and directly
4570 return NULL from CONF_get_section.
4573 *) Fix potential buffer overrun for EBCDIC.
4576 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4577 keyUsage if basicConstraints absent for a CA.
4580 *) Make SMIME_write_PKCS7() write mail header values with a format that
4581 is more generally accepted (no spaces before the semicolon), since
4582 some programs can't parse those values properly otherwise. Also make
4583 sure BIO's that break lines after each write do not create invalid
4587 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4588 macros previously used would not encode an empty SEQUENCE OF
4589 and break the signature.
4591 [This change does not apply to 0.9.7.]
4593 *) Zero the premaster secret after deriving the master secret in
4597 *) Add some EVP_add_digest_alias registrations (as found in
4598 OpenSSL_add_all_digests()) to SSL_library_init()
4599 aka OpenSSL_add_ssl_algorithms(). This provides improved
4600 compatibility with peers using X.509 certificates
4601 with unconventional AlgorithmIdentifier OIDs.
4604 *) Fix for Irix with NO_ASM.
4605 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4607 *) ./config script fixes.
4608 [Ulf Moeller, Richard Levitte]
4610 *) Fix 'openssl passwd -1'.
4613 *) Change PKCS12_key_gen_asc() so it can cope with non null
4614 terminated strings whose length is passed in the passlen
4615 parameter, for example from PEM callbacks. This was done
4616 by adding an extra length parameter to asc2uni().
4617 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4619 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4620 call failed, free the DSA structure.
4623 *) Fix to uni2asc() to cope with zero length Unicode strings.
4624 These are present in some PKCS#12 files.
4627 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4628 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4629 when writing a 32767 byte record.
4630 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4632 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4633 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4635 (RSA objects have a reference count access to which is protected
4636 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4637 so they are meant to be shared between threads.)
4638 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4639 "Reddie, Steven" <Steven.Reddie@ca.com>]
4641 *) Fix a deadlock in CRYPTO_mem_leaks().
4644 *) Use better test patterns in bntest.
4647 *) rand_win.c fix for Borland C.
4650 *) BN_rshift bugfix for n == 0.
4653 *) Add a 'bctest' script that checks for some known 'bc' bugs
4654 so that 'make test' does not abort just because 'bc' is broken.
4657 *) Store verify_result within SSL_SESSION also for client side to
4658 avoid potential security hole. (Re-used sessions on the client side
4659 always resulted in verify_result==X509_V_OK, not using the original
4660 result of the server certificate verification.)
4663 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4664 SSL3_RT_APPLICATION_DATA, return 0.
4665 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4669 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4670 releases, have been re-implemented by renaming the previous
4671 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4672 and ssl3_read_internal, respectively, and adding 'peek' parameters
4673 to them. The new ssl[23]_{read,peek} functions are calls to
4674 ssl[23]_read_internal with the 'peek' flag set appropriately.
4675 A 'peek' parameter has also been added to ssl3_read_bytes, which
4676 does the actual work for ssl3_read_internal.
4679 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4680 the method-specific "init()" handler. Also clean up ex_data after
4681 calling the method-specific "finish()" handler. Previously, this was
4682 happening the other way round.
4685 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4686 The previous value, 12, was not always sufficient for BN_mod_exp().
4689 *) Make sure that shared libraries get the internal name engine with
4690 the full version number and not just 0. This should mark the
4691 shared libraries as not backward compatible. Of course, this should
4692 be changed again when we can guarantee backward binary compatibility.
4695 *) Fix typo in get_cert_by_subject() in by_dir.c
4696 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4698 *) Rework the system to generate shared libraries:
4700 - Make note of the expected extension for the shared libraries and
4701 if there is a need for symbolic links from for example libcrypto.so.0
4702 to libcrypto.so.0.9.7. There is extended info in Configure for
4705 - Make as few rebuilds of the shared libraries as possible.
4707 - Still avoid linking the OpenSSL programs with the shared libraries.
4709 - When installing, install the shared libraries separately from the
4713 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4715 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4716 and not in SSL_clear because the latter is also used by the
4717 accept/connect functions; previously, the settings made by
4718 SSL_set_read_ahead would be lost during the handshake.
4719 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4721 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4722 Previously, it would create entries for disableed algorithms no
4726 *) Added several new manual pages for SSL_* function.
4729 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4731 *) In ssl23_get_client_hello, generate an error message when faced
4732 with an initial SSL 3.0/TLS record that is too small to contain the
4733 first two bytes of the ClientHello message, i.e. client_version.
4734 (Note that this is a pathologic case that probably has never happened
4735 in real life.) The previous approach was to use the version number
4736 from the record header as a substitute; but our protocol choice
4737 should not depend on that one because it is not authenticated
4738 by the Finished messages.
4741 *) More robust randomness gathering functions for Windows.
4742 [Jeffrey Altman <jaltman@columbia.edu>]
4744 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4745 not set then we don't setup the error code for issuer check errors
4746 to avoid possibly overwriting other errors which the callback does
4747 handle. If an application does set the flag then we assume it knows
4748 what it is doing and can handle the new informational codes
4752 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4753 a general "ANY" type, as such it should be able to decode anything
4754 including tagged types. However it didn't check the class so it would
4755 wrongly interpret tagged types in the same way as their universal
4756 counterpart and unknown types were just rejected. Changed so that the
4757 tagged and unknown types are handled in the same way as a SEQUENCE:
4758 that is the encoding is stored intact. There is also a new type
4759 "V_ASN1_OTHER" which is used when the class is not universal, in this
4760 case we have no idea what the actual type is so we just lump them all
4764 *) On VMS, stdout may very well lead to a file that is written to
4765 in a record-oriented fashion. That means that every write() will
4766 write a separate record, which will be read separately by the
4767 programs trying to read from it. This can be very confusing.
4769 The solution is to put a BIO filter in the way that will buffer
4770 text until a linefeed is reached, and then write everything a
4771 line at a time, so every record written will be an actual line,
4772 not chunks of lines and not (usually doesn't happen, but I've
4773 seen it once) several lines in one record. BIO_f_linebuffer() is
4776 Currently, it's a VMS-only method, because that's where it has
4777 been tested well enough.
4780 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4781 it can return incorrect results.
4782 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4783 but it was in 0.9.6-beta[12].)
4786 *) Disable the check for content being present when verifying detached
4787 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4788 include zero length content when signing messages.
4791 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4792 BIO_ctrl (for BIO pairs).
4795 *) Add DSO method for VMS.
4798 *) Bug fix: Montgomery multiplication could produce results with the
4802 *) Add RPM specification openssl.spec and modify it to build three
4803 packages. The default package contains applications, application
4804 documentation and run-time libraries. The devel package contains
4805 include files, static libraries and function documentation. The
4806 doc package contains the contents of the doc directory. The original
4807 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4810 *) Add a large number of documentation files for many SSL routines.
4811 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4813 *) Add a configuration entry for Sony News 4.
4814 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4816 *) Don't set the two most significant bits to one when generating a
4817 random number < q in the DSA library.
4820 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4821 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4822 the underlying transport is blocking) if a handshake took place.
4823 (The default behaviour is needed by applications such as s_client
4824 and s_server that use select() to determine when to use SSL_read;
4825 but for applications that know in advance when to expect data, it
4826 just makes things more complicated.)
4829 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4833 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4834 work better on such systems.
4835 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4837 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4838 Update PKCS12_parse() so it copies the friendlyName and the
4839 keyid to the certificates aux info.
4842 *) Fix bug in PKCS7_verify() which caused an infinite loop
4843 if there was more than one signature.
4844 [Sven Uszpelkat <su@celocom.de>]
4846 *) Major change in util/mkdef.pl to include extra information
4847 about each symbol, as well as presentig variables as well
4848 as functions. This change means that there's n more need
4849 to rebuild the .num files when some algorithms are excluded.
4852 *) Allow the verify time to be set by an application,
4853 rather than always using the current time.
4856 *) Phase 2 verify code reorganisation. The certificate
4857 verify code now looks up an issuer certificate by a
4858 number of criteria: subject name, authority key id
4859 and key usage. It also verifies self signed certificates
4860 by the same criteria. The main comparison function is
4861 X509_check_issued() which performs these checks.
4863 Lot of changes were necessary in order to support this
4864 without completely rewriting the lookup code.
4866 Authority and subject key identifier are now cached.
4868 The LHASH 'certs' is X509_STORE has now been replaced
4869 by a STACK_OF(X509_OBJECT). This is mainly because an
4870 LHASH can't store or retrieve multiple objects with
4871 the same hash value.
4873 As a result various functions (which were all internal
4874 use only) have changed to handle the new X509_STORE
4875 structure. This will break anything that messed round
4876 with X509_STORE internally.
4878 The functions X509_STORE_add_cert() now checks for an
4879 exact match, rather than just subject name.
4881 The X509_STORE API doesn't directly support the retrieval
4882 of multiple certificates matching a given criteria, however
4883 this can be worked round by performing a lookup first
4884 (which will fill the cache with candidate certificates)
4885 and then examining the cache for matches. This is probably
4886 the best we can do without throwing out X509_LOOKUP
4887 entirely (maybe later...).
4889 The X509_VERIFY_CTX structure has been enhanced considerably.
4891 All certificate lookup operations now go via a get_issuer()
4892 callback. Although this currently uses an X509_STORE it
4893 can be replaced by custom lookups. This is a simple way
4894 to bypass the X509_STORE hackery necessary to make this
4895 work and makes it possible to use more efficient techniques
4896 in future. A very simple version which uses a simple
4897 STACK for its trusted certificate store is also provided
4898 using X509_STORE_CTX_trusted_stack().
4900 The verify_cb() and verify() callbacks now have equivalents
4901 in the X509_STORE_CTX structure.
4903 X509_STORE_CTX also has a 'flags' field which can be used
4904 to customise the verify behaviour.
4907 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4908 excludes S/MIME capabilities.
4911 *) When a certificate request is read in keep a copy of the
4912 original encoding of the signed data and use it when outputing
4913 again. Signatures then use the original encoding rather than
4914 a decoded, encoded version which may cause problems if the
4915 request is improperly encoded.
4918 *) For consistency with other BIO_puts implementations, call
4919 buffer_write(b, ...) directly in buffer_puts instead of calling
4922 In BIO_puts, increment b->num_write as in BIO_write.
4923 [Peter.Sylvester@EdelWeb.fr]
4925 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4926 BN_zero, we may not return a BIGNUM with an array consisting of
4930 *) Avoid calling abort() from within the library when problems are
4931 detected, except if preprocessor symbols have been defined
4932 (such as REF_CHECK, BN_DEBUG etc.).
4935 *) New openssl application 'rsautl'. This utility can be
4936 used for low level RSA operations. DER public key
4937 BIO/fp routines also added.
4940 *) New Configure entry and patches for compiling on QNX 4.
4941 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4943 *) A demo state-machine implementation was sponsored by
4944 Nuron (http://www.nuron.com/) and is now available in
4945 demos/state_machine.
4948 *) New options added to the 'dgst' utility for signature
4949 generation and verification.
4952 *) Unrecognized PKCS#7 content types are now handled via a
4953 catch all ASN1_TYPE structure. This allows unsupported
4954 types to be stored as a "blob" and an application can
4955 encode and decode it manually.
4958 *) Fix various signed/unsigned issues to make a_strex.c
4960 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4962 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4963 length if passed a buffer. ASN1_INTEGER_to_BN failed
4964 if passed a NULL BN and its argument was negative.
4965 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4967 *) Modification to PKCS#7 encoding routines to output definite
4968 length encoding. Since currently the whole structures are in
4969 memory there's not real point in using indefinite length
4970 constructed encoding. However if OpenSSL is compiled with
4971 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4974 *) Added BIO_vprintf() and BIO_vsnprintf().
4977 *) Added more prefixes to parse for in the the strings written
4978 through a logging bio, to cover all the levels that are available
4979 through syslog. The prefixes are now:
4981 PANIC, EMERG, EMR => LOG_EMERG
4982 ALERT, ALR => LOG_ALERT
4983 CRIT, CRI => LOG_CRIT
4984 ERROR, ERR => LOG_ERR
4985 WARNING, WARN, WAR => LOG_WARNING
4986 NOTICE, NOTE, NOT => LOG_NOTICE
4987 INFO, INF => LOG_INFO
4988 DEBUG, DBG => LOG_DEBUG
4990 and as before, if none of those prefixes are present at the
4991 beginning of the string, LOG_ERR is chosen.
4993 On Win32, the LOG_* levels are mapped according to this:
4995 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4996 LOG_WARNING => EVENTLOG_WARNING_TYPE
4997 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5001 *) Made it possible to reconfigure with just the configuration
5002 argument "reconf" or "reconfigure". The command line arguments
5003 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5004 and are retrieved from there when reconfiguring.
5008 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5010 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5013 *) The obj_dat.pl script was messing up the sorting of object
5014 names. The reason was that it compared the quoted version
5015 of strings as a result "OCSP" > "OCSP Signing" because
5016 " > SPACE. Changed script to store unquoted versions of
5017 names and add quotes on output. It was also omitting some
5018 names from the lookup table if they were given a default
5019 value (that is if SN is missing it is given the same
5020 value as LN and vice versa), these are now added on the
5021 grounds that if an object has a name we should be able to
5022 look it up. Finally added warning output when duplicate
5023 short or long names are found.
5026 *) Changes needed for Tandem NSK.
5027 [Scott Uroff <scott@xypro.com>]
5029 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5030 RSA_padding_check_SSLv23(), special padding was never detected
5031 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5032 version rollback attacks was not effective.
5034 In s23_clnt.c, don't use special rollback-attack detection padding
5035 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5036 client; similarly, in s23_srvr.c, don't do the rollback check if
5037 SSL 2.0 is the only protocol enabled in the server.
5040 *) Make it possible to get hexdumps of unprintable data with 'openssl
5041 asn1parse'. By implication, the functions ASN1_parse_dump() and
5042 BIO_dump_indent() are added.
5045 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5046 these print out strings and name structures based on various
5047 flags including RFC2253 support and proper handling of
5048 multibyte characters. Added options to the 'x509' utility
5049 to allow the various flags to be set.
5052 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5053 Also change the functions X509_cmp_current_time() and
5054 X509_gmtime_adj() work with an ASN1_TIME structure,
5055 this will enable certificates using GeneralizedTime in validity
5056 dates to be checked.
5059 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5060 negative public key encodings) on by default,
5061 NO_NEG_PUBKEY_BUG can be set to disable it.
5064 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5065 content octets. An i2c_ASN1_OBJECT is unnecessary because
5066 the encoding can be trivially obtained from the structure.
5069 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5070 not read locks (CRYPTO_r_[un]lock).
5073 *) A first attempt at creating official support for shared
5074 libraries through configuration. I've kept it so the
5075 default is static libraries only, and the OpenSSL programs
5076 are always statically linked for now, but there are
5077 preparations for dynamic linking in place.
5078 This has been tested on Linux and Tru64.
5081 *) Randomness polling function for Win9x, as described in:
5082 Peter Gutmann, Software Generation of Practically Strong
5086 *) Fix so PRNG is seeded in req if using an already existing
5090 *) New options to smime application. -inform and -outform
5091 allow alternative formats for the S/MIME message including
5092 PEM and DER. The -content option allows the content to be
5093 specified separately. This should allow things like Netscape
5094 form signing output easier to verify.
5097 *) Fix the ASN1 encoding of tags using the 'long form'.
5100 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5101 STRING types. These convert content octets to and from the
5102 underlying type. The actual tag and length octets are
5103 already assumed to have been read in and checked. These
5104 are needed because all other string types have virtually
5105 identical handling apart from the tag. By having versions
5106 of the ASN1 functions that just operate on content octets
5107 IMPLICIT tagging can be handled properly. It also allows
5108 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5109 and ASN1_INTEGER are identical apart from the tag.
5112 *) Change the handling of OID objects as follows:
5114 - New object identifiers are inserted in objects.txt, following
5115 the syntax given in objects.README.
5116 - objects.pl is used to process obj_mac.num and create a new
5118 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5121 This is currently kind of a hack, and the perl code in objects.pl
5122 isn't very elegant, but it works as I intended. The simplest way
5123 to check that it worked correctly is to look in obj_dat.h and
5124 check the array nid_objs and make sure the objects haven't moved
5125 around (this is important!). Additions are OK, as well as
5126 consistent name changes.
5129 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5132 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5133 The given file adds to whatever has already been seeded into the
5134 random pool through the RANDFILE configuration file option or
5135 environment variable, or the default random state file.
5138 *) mkstack.pl now sorts each macro group into lexical order.
5139 Previously the output order depended on the order the files
5140 appeared in the directory, resulting in needless rewriting
5144 *) Patches to make OpenSSL compile under Win32 again. Mostly
5145 work arounds for the VC++ problem that it treats func() as
5146 func(void). Also stripped out the parts of mkdef.pl that
5147 added extra typesafe functions: these no longer exist.
5150 *) Reorganisation of the stack code. The macros are now all
5151 collected in safestack.h . Each macro is defined in terms of
5152 a "stack macro" of the form SKM_<name>(type, a, b). The
5153 DEBUG_SAFESTACK is now handled in terms of function casts,
5154 this has the advantage of retaining type safety without the
5155 use of additional functions. If DEBUG_SAFESTACK is not defined
5156 then the non typesafe macros are used instead. Also modified the
5157 mkstack.pl script to handle the new form. Needs testing to see
5158 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5159 the default if no major problems. Similar behaviour for ASN1_SET_OF
5160 and PKCS12_STACK_OF.
5163 *) When some versions of IIS use the 'NET' form of private key the
5164 key derivation algorithm is different. Normally MD5(password) is
5165 used as a 128 bit RC4 key. In the modified case
5166 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5167 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5168 as the old Netscape_RSA functions except they have an additional
5169 'sgckey' parameter which uses the modified algorithm. Also added
5170 an -sgckey command line option to the rsa utility. Thanks to
5171 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5172 algorithm to openssl-dev.
5175 *) The evp_local.h macros were using 'c.##kname' which resulted in
5176 invalid expansion on some systems (SCO 5.0.5 for example).
5177 Corrected to 'c.kname'.
5178 [Phillip Porch <root@theporch.com>]
5180 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5181 a STACK of email addresses from a certificate or request, these look
5182 in the subject name and the subject alternative name extensions and
5183 omit any duplicate addresses.
5186 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5187 This makes DSA verification about 2 % faster.
5190 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5191 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5192 plus overhead for 1024 bit moduli).
5193 This makes exponentiations about 0.5 % faster for 1024 bit
5194 exponents (as measured by "openssl speed rsa2048").
5197 *) Rename memory handling macros to avoid conflicts with other
5199 Malloc => OPENSSL_malloc
5200 Malloc_locked => OPENSSL_malloc_locked
5201 Realloc => OPENSSL_realloc
5202 Free => OPENSSL_free
5205 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5206 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5209 *) CygWin32 support.
5210 [John Jarvie <jjarvie@newsguy.com>]
5212 *) The type-safe stack code has been rejigged. It is now only compiled
5213 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5214 by default all type-specific stack functions are "#define"d back to
5215 standard stack functions. This results in more streamlined output
5216 but retains the type-safety checking possibilities of the original
5220 *) The STACK code has been cleaned up, and certain type declarations
5221 that didn't make a lot of sense have been brought in line. This has
5222 also involved a cleanup of sorts in safestack.h to more correctly
5223 map type-safe stack functions onto their plain stack counterparts.
5224 This work has also resulted in a variety of "const"ifications of
5225 lots of the code, especially "_cmp" operations which should normally
5226 be prototyped with "const" parameters anyway.
5229 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5230 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5231 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5232 where all of 'md' is used each time the PRNG is used, but 'state'
5233 is used only indexed by a cyclic counter. As entropy may not be
5234 well distributed from the beginning, 'md' is important as a
5235 chaining variable. However, the output function chains only half
5236 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5237 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5238 in all of 'state' being rewritten, with the new values depending
5239 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5242 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5243 the handshake is continued after ssl_verify_cert_chain();
5244 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5245 can lead to 'unexplainable' connection aborts later.
5246 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5248 *) Major EVP API cipher revision.
5249 Add hooks for extra EVP features. This allows various cipher
5250 parameters to be set in the EVP interface. Support added for variable
5251 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5252 setting of RC2 and RC5 parameters.
5254 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5257 Remove lots of duplicated code from the EVP library. For example *every*
5258 cipher init() function handles the 'iv' in the same way according to the
5259 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5260 for CFB and OFB modes they zero ctx->num.
5262 New functionality allows removal of S/MIME code RC2 hack.
5264 Most of the routines have the same form and so can be declared in terms
5267 By shifting this to the top level EVP_CipherInit() it can be removed from
5268 all individual ciphers. If the cipher wants to handle IVs or keys
5269 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5272 Change lots of functions like EVP_EncryptUpdate() to now return a
5273 value: although software versions of the algorithms cannot fail
5274 any installed hardware versions can.
5277 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5278 this option is set, tolerate broken clients that send the negotiated
5279 protocol version number instead of the requested protocol version
5283 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5284 i.e. non-zero for export ciphersuites, zero otherwise.
5285 Previous versions had this flag inverted, inconsistent with
5286 rsa_tmp_cb (..._TMP_RSA_CB).
5287 [Bodo Moeller; problem reported by Amit Chopra]
5289 *) Add missing DSA library text string. Work around for some IIS
5290 key files with invalid SEQUENCE encoding.
5293 *) Add a document (doc/standards.txt) that list all kinds of standards
5294 and so on that are implemented in OpenSSL.
5297 *) Enhance c_rehash script. Old version would mishandle certificates
5298 with the same subject name hash and wouldn't handle CRLs at all.
5299 Added -fingerprint option to crl utility, to support new c_rehash
5303 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5306 *) Fix for SSL server purpose checking. Server checking was
5307 rejecting certificates which had extended key usage present
5308 but no ssl client purpose.
5309 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5311 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5312 is a little unclear about how a blank password is handled.
5313 Since the password in encoded as a BMPString with terminating
5314 double NULL a zero length password would end up as just the
5315 double NULL. However no password at all is different and is
5316 handled differently in the PKCS#12 key generation code. NS
5317 treats a blank password as zero length. MSIE treats it as no
5318 password on export: but it will try both on import. We now do
5319 the same: PKCS12_parse() tries zero length and no password if
5320 the password is set to "" or NULL (NULL is now a valid password:
5321 it wasn't before) as does the pkcs12 application.
5324 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5325 perror when PEM_read_bio_X509_REQ fails, the error message must
5326 be obtained from the error queue.
5329 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5330 it in ERR_remove_state if appropriate, and change ERR_get_state
5331 accordingly to avoid race conditions (this is necessary because
5332 thread_hash is no longer constant once set).
5335 *) Bugfix for linux-elf makefile.one.
5338 *) RSA_get_default_method() will now cause a default
5339 RSA_METHOD to be chosen if one doesn't exist already.
5340 Previously this was only set during a call to RSA_new()
5341 or RSA_new_method(NULL) meaning it was possible for
5342 RSA_get_default_method() to return NULL.
5345 *) Added native name translation to the existing DSO code
5346 that will convert (if the flag to do so is set) filenames
5347 that are sufficiently small and have no path information
5348 into a canonical native form. Eg. "blah" converted to
5349 "libblah.so" or "blah.dll" etc.
5352 *) New function ERR_error_string_n(e, buf, len) which is like
5353 ERR_error_string(e, buf), but writes at most 'len' bytes
5354 including the 0 terminator. For ERR_error_string_n, 'buf'
5356 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5358 *) CONF library reworked to become more general. A new CONF
5359 configuration file reader "class" is implemented as well as a
5360 new functions (NCONF_*, for "New CONF") to handle it. The now
5361 old CONF_* functions are still there, but are reimplemented to
5362 work in terms of the new functions. Also, a set of functions
5363 to handle the internal storage of the configuration data is
5364 provided to make it easier to write new configuration file
5365 reader "classes" (I can definitely see something reading a
5366 configuration file in XML format, for example), called _CONF_*,
5367 or "the configuration storage API"...
5369 The new configuration file reading functions are:
5371 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5372 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5374 NCONF_default, NCONF_WIN32
5376 NCONF_dump_fp, NCONF_dump_bio
5378 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5379 NCONF_new creates a new CONF object. This works in the same way
5380 as other interfaces in OpenSSL, like the BIO interface.
5381 NCONF_dump_* dump the internal storage of the configuration file,
5382 which is useful for debugging. All other functions take the same
5383 arguments as the old CONF_* functions wth the exception of the
5384 first that must be a `CONF *' instead of a `LHASH *'.
5386 To make it easer to use the new classes with the old CONF_* functions,
5387 the function CONF_set_default_method is provided.
5390 *) Add '-tls1' option to 'openssl ciphers', which was already
5391 mentioned in the documentation but had not been implemented.
5392 (This option is not yet really useful because even the additional
5393 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5396 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5397 OpenSSL-based applications) load shared libraries and bind to
5398 them in a portable way.
5399 [Geoff Thorpe, with contributions from Richard Levitte]
5401 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5403 *) Make sure _lrotl and _lrotr are only used with MSVC.
5405 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5406 (the default implementation of RAND_status).
5408 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5409 to '-clrext' (= clear extensions), as intended and documented.
5410 [Bodo Moeller; inconsistency pointed out by Michael Attili
5413 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5414 was larger than the MD block size.
5415 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5417 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5418 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5419 using the passed key: if the passed key was a private key the result
5420 of X509_print(), for example, would be to print out all the private key
5424 *) des_quad_cksum() byte order bug fix.
5425 [Ulf Möller, using the problem description in krb4-0.9.7, where
5426 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5428 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5430 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5432 *) For easily testing in shell scripts whether some command
5433 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5434 returns with exit code 0 iff no command of the given name is available.
5435 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5436 the output goes to stdout and nothing is printed to stderr.
5437 Additional arguments are always ignored.
5439 Since for each cipher there is a command of the same name,
5440 the 'no-cipher' compilation switches can be tested this way.
5442 ('openssl no-XXX' is not able to detect pseudo-commands such
5443 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5446 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5449 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5450 is set; it will be thrown away anyway because each handshake creates
5452 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5453 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5454 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5455 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5458 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5459 'Q' and 'R' lose their special meanings (quit/renegotiate).
5460 This is part of what -quiet does; unlike -quiet, -ign_eof
5461 does not suppress any output.
5464 *) Add compatibility options to the purpose and trust code. The
5465 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5466 accepts a certificate or CA, this was the previous behaviour,
5467 with all the associated security issues.
5469 X509_TRUST_COMPAT is the old trust behaviour: only and
5470 automatically trust self signed roots in certificate store. A
5471 new trust setting X509_TRUST_DEFAULT is used to specify that
5472 a purpose has no associated trust setting and it should instead
5473 use the value in the default purpose.
5476 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5477 and fix a memory leak.
5480 *) In util/mkerr.pl (which implements 'make errors'), preserve
5481 reason strings from the previous version of the .c file, as
5482 the default to have only downcase letters (and digits) in
5483 automatically generated reasons codes is not always appropriate.
5486 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5487 using strerror. Previously, ERR_reason_error_string() returned
5488 library names as reason strings for SYSerr; but SYSerr is a special
5489 case where small numbers are errno values, not library numbers.
5492 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5493 converts DSA parameters into DH parameters. (When creating parameters,
5494 DSA_generate_parameters is used.)
5497 *) Include 'length' (recommended exponent length) in C code generated
5498 by 'openssl dhparam -C'.
5501 *) The second argument to set_label in perlasm was already being used
5502 so couldn't be used as a "file scope" flag. Moved to third argument
5506 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5507 instead of RAND_bytes for encryption IVs and salts.
5510 *) Include RAND_status() into RAND_METHOD instead of implementing
5511 it only for md_rand.c Otherwise replacing the PRNG by calling
5512 RAND_set_rand_method would be impossible.
5515 *) Don't let DSA_generate_key() enter an infinite loop if the random
5516 number generation fails.
5519 *) New 'rand' application for creating pseudo-random output.
5522 *) Added configuration support for Linux/IA64
5523 [Rolf Haberrecker <rolf@suse.de>]
5525 *) Assembler module support for Mingw32.
5528 *) Shared library support for HPUX (in shlib/).
5529 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5531 *) Shared library support for Solaris gcc.
5532 [Lutz Behnke <behnke@trustcenter.de>]
5534 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5536 *) PKCS7_encrypt() was adding text MIME headers twice because they
5537 were added manually and by SMIME_crlf_copy().
5540 *) In bntest.c don't call BN_rand with zero bits argument.
5541 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5543 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5544 case was implemented. This caused BN_div_recp() to fail occasionally.
5547 *) Add an optional second argument to the set_label() in the perl
5548 assembly language builder. If this argument exists and is set
5549 to 1 it signals that the assembler should use a symbol whose
5550 scope is the entire file, not just the current function. This
5551 is needed with MASM which uses the format label:: for this scope.
5552 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5554 *) Change the ASN1 types so they are typedefs by default. Before
5555 almost all types were #define'd to ASN1_STRING which was causing
5556 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5560 *) Change names of new functions to the new get1/get0 naming
5561 convention: After 'get1', the caller owns a reference count
5562 and has to call ..._free; 'get0' returns a pointer to some
5563 data structure without incrementing reference counters.
5564 (Some of the existing 'get' functions increment a reference
5565 counter, some don't.)
5566 Similarly, 'set1' and 'add1' functions increase reference
5567 counters or duplicate objects.
5570 *) Allow for the possibility of temp RSA key generation failure:
5571 the code used to assume it always worked and crashed on failure.
5574 *) Fix potential buffer overrun problem in BIO_printf().
5575 [Ulf Möller, using public domain code by Patrick Powell; problem
5576 pointed out by David Sacerdote <das33@cornell.edu>]
5578 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5579 RAND_egd() and RAND_status(). In the command line application,
5580 the EGD socket can be specified like a seed file using RANDFILE
5584 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5585 Some CAs (e.g. Verisign) distribute certificates in this form.
5588 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5589 list to exclude them. This means that no special compilation option
5590 is needed to use anonymous DH: it just needs to be included in the
5594 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5595 EVP_MD_type. The old functionality is available in a new macro called
5596 EVP_MD_md(). Change code that uses it and update docs.
5599 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5600 where the 'void *' argument is replaced by a function pointer argument.
5601 Previously 'void *' was abused to point to functions, which works on
5602 many platforms, but is not correct. As these functions are usually
5603 called by macros defined in OpenSSL header files, most source code
5604 should work without changes.
5607 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5608 sections with information on -D... compiler switches used for
5609 compiling the library so that applications can see them. To enable
5610 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5611 must be defined. E.g.,
5612 #define OPENSSL_ALGORITHM_DEFINES
5613 #include <openssl/opensslconf.h>
5614 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5615 [Richard Levitte, Ulf and Bodo Möller]
5617 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5621 *) Change the 'other' type in certificate aux info to a STACK_OF
5622 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5623 the required ASN1 format: arbitrary types determined by an OID.
5626 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5627 argument to 'req'. This is not because the function is newer or
5628 better than others it just uses the work 'NEW' in the certificate
5629 request header lines. Some software needs this.
5632 *) Reorganise password command line arguments: now passwords can be
5633 obtained from various sources. Delete the PEM_cb function and make
5634 it the default behaviour: i.e. if the callback is NULL and the
5635 usrdata argument is not NULL interpret it as a null terminated pass
5636 phrase. If usrdata and the callback are NULL then the pass phrase
5637 is prompted for as usual.
5640 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5641 the support is automatically enabled. The resulting binaries will
5642 autodetect the card and use it if present.
5643 [Ben Laurie and Compaq Inc.]
5645 *) Work around for Netscape hang bug. This sends certificate request
5646 and server done in one record. Since this is perfectly legal in the
5647 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5648 the bugs/SSLv3 entry for more info.
5651 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5654 *) Add -rand argument to smime and pkcs12 applications and read/write
5658 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5661 *) Add command line password options to the remaining applications.
5664 *) Bug fix for BN_div_recp() for numerators with an even number of
5668 *) More tests in bntest.c, and changed test_bn output.
5671 *) ./config recognizes MacOS X now.
5674 *) Bug fix for BN_div() when the first words of num and divsor are
5675 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5678 *) Add support for various broken PKCS#8 formats, and command line
5679 options to produce them.
5682 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5683 get temporary BIGNUMs from a BN_CTX.
5686 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5690 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5691 include a #define from the old name to the new. The original intent
5692 was that statically linked binaries could for example just call
5693 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5694 link with digests. This never worked becayse SSLeay_add_all_digests()
5695 and SSLeay_add_all_ciphers() were in the same source file so calling
5696 one would link with the other. They are now in separate source files.
5699 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5702 *) Use a less unusual form of the Miller-Rabin primality test (it used
5703 a binary algorithm for exponentiation integrated into the Miller-Rabin
5704 loop, our standard modexp algorithms are faster).
5707 *) Support for the EBCDIC character set completed.
5708 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5710 *) Source code cleanups: use const where appropriate, eliminate casts,
5711 use void * instead of char * in lhash.
5714 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5715 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5716 this the server could overwrite ephemeral keys that the client
5720 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5721 using 50 iterations of the Rabin-Miller test.
5723 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5724 iterations of the Rabin-Miller test as required by the appendix
5725 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5726 As BN_is_prime_fasttest includes trial division, DSA parameter
5727 generation becomes much faster.
5729 This implies a change for the callback functions in DSA_is_prime
5730 and DSA_generate_parameters: The callback function is called once
5731 for each positive witness in the Rabin-Miller test, not just
5732 occasionally in the inner loop; and the parameters to the
5733 callback function now provide an iteration count for the outer
5734 loop rather than for the current invocation of the inner loop.
5735 DSA_generate_parameters additionally can call the callback
5736 function with an 'iteration count' of -1, meaning that a
5737 candidate has passed the trial division test (when q is generated
5738 from an application-provided seed, trial division is skipped).
5741 *) New function BN_is_prime_fasttest that optionally does trial
5742 division before starting the Rabin-Miller test and has
5743 an additional BN_CTX * argument (whereas BN_is_prime always
5744 has to allocate at least one BN_CTX).
5745 'callback(1, -1, cb_arg)' is called when a number has passed the
5746 trial division stage.
5749 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5753 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5756 *) New function BN_pseudo_rand().
5759 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5760 bignum version of BN_from_montgomery() with the working code from
5761 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5765 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5766 made it impossible to use the same SSL_SESSION data structure in
5767 SSL2 clients in multiple threads.
5770 *) The return value of RAND_load_file() no longer counts bytes obtained
5771 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5772 to seed the PRNG (previously an explicit byte count was required).
5773 [Ulf Möller, Bodo Möller]
5775 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5776 used (char *) instead of (void *) and had casts all over the place.
5779 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5782 *) Retain source code compatibility for BN_prime_checks macro:
5783 BN_is_prime(..., BN_prime_checks, ...) now uses
5784 BN_prime_checks_for_size to determine the appropriate number of
5785 Rabin-Miller iterations.
5788 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5789 DH_CHECK_P_NOT_SAFE_PRIME.
5790 (Check if this is true? OpenPGP calls them "strong".)
5793 *) Merge the functionality of "dh" and "gendh" programs into a new program
5794 "dhparam". The old programs are retained for now but will handle DH keys
5795 (instead of parameters) in future.
5798 *) Make the ciphers, s_server and s_client programs check the return values
5799 when a new cipher list is set.
5802 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5803 ciphers. Before when the 56bit ciphers were enabled the sorting was
5806 The syntax for the cipher sorting has been extended to support sorting by
5807 cipher-strength (using the strength_bits hard coded in the tables).
5808 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5810 Fix a bug in the cipher-command parser: when supplying a cipher command
5811 string with an "undefined" symbol (neither command nor alphanumeric
5812 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5813 an error is flagged.
5815 Due to the strength-sorting extension, the code of the
5816 ssl_create_cipher_list() function was completely rearranged. I hope that
5817 the readability was also increased :-)
5818 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5820 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5821 for the first serial number and places 2 in the serial number file. This
5822 avoids problems when the root CA is created with serial number zero and
5823 the first user certificate has the same issuer name and serial number
5827 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5828 the new code. Add documentation for this stuff.
5831 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5832 X509_*() to X509at_*() on the grounds that they don't handle X509
5833 structures and behave in an analagous way to the X509v3 functions:
5834 they shouldn't be called directly but wrapper functions should be used
5837 So we also now have some wrapper functions that call the X509at functions
5838 when passed certificate requests. (TO DO: similar things can be done with
5839 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5840 things. Some of these need some d2i or i2d and print functionality
5841 because they handle more complex structures.)
5844 *) Add missing #ifndefs that caused missing symbols when building libssl
5845 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5846 NO_RSA in ssl/s2*.c.
5847 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5849 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5850 has a return value which indicates the quality of the random data
5851 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5852 error queue. New function RAND_pseudo_bytes() generates output that is
5853 guaranteed to be unique but not unpredictable. RAND_add is like
5854 RAND_seed, but takes an extra argument for an entropy estimate
5855 (RAND_seed always assumes full entropy).
5858 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5859 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5860 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5861 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5862 false-positive rate of at most 2^-80 for random input.
5865 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5868 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5869 in the 0.9.5 release), this returns the chain
5870 from an X509_CTX structure with a dup of the stack and all
5871 the X509 reference counts upped: so the stack will exist
5872 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5875 Also make SSL_SESSION_print() print out the verify return
5879 *) Add manpage for the pkcs12 command. Also change the default
5880 behaviour so MAC iteration counts are used unless the new
5881 -nomaciter option is used. This improves file security and
5882 only older versions of MSIE (4.0 for example) need it.
5885 *) Honor the no-xxx Configure options when creating .DEF files.
5888 *) Add PKCS#10 attributes to field table: challengePassword,
5889 unstructuredName and unstructuredAddress. These are taken from
5890 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5891 international characters are used.
5893 More changes to X509_ATTRIBUTE code: allow the setting of types
5894 based on strings. Remove the 'loc' parameter when adding
5895 attributes because these will be a SET OF encoding which is sorted
5899 *) Initial changes to the 'req' utility to allow request generation
5900 automation. This will allow an application to just generate a template
5901 file containing all the field values and have req construct the
5904 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5905 used all over the place including certificate requests and PKCS#7
5906 structures. They are currently handled manually where necessary with
5907 some primitive wrappers for PKCS#7. The new functions behave in a
5908 manner analogous to the X509 extension functions: they allow
5909 attributes to be looked up by NID and added.
5911 Later something similar to the X509V3 code would be desirable to
5912 automatically handle the encoding, decoding and printing of the
5913 more complex types. The string types like challengePassword can
5914 be handled by the string table functions.
5916 Also modified the multi byte string table handling. Now there is
5917 a 'global mask' which masks out certain types. The table itself
5918 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5919 is useful when for example there is only one permissible type
5920 (as in countryName) and using the mask might result in no valid
5924 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5925 SSL_get_peer_finished to allow applications to obtain the latest
5926 Finished messages sent to the peer or expected from the peer,
5927 respectively. (SSL_get_peer_finished is usually the Finished message
5928 actually received from the peer, otherwise the protocol will be aborted.)
5930 As the Finished message are message digests of the complete handshake
5931 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5932 be used for external authentication procedures when the authentication
5933 provided by SSL/TLS is not desired or is not enough.
5936 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5937 the host supports BWX extension and if Compaq C is present on the
5938 $PATH. Just exploiting of the BWX extension results in 20-30%
5939 performance kick for some algorithms, e.g. DES and RC4 to mention
5940 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5944 *) Add support for MS "fast SGC". This is arguably a violation of the
5945 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5946 weak crypto and after checking the certificate is SGC a second one
5947 with strong crypto. MS SGC stops the first handshake after receiving
5948 the server certificate message and sends a second client hello. Since
5949 a server will typically do all the time consuming operations before
5950 expecting any further messages from the client (server key exchange
5951 is the most expensive) there is little difference between the two.
5953 To get OpenSSL to support MS SGC we have to permit a second client
5954 hello message after we have sent server done. In addition we have to
5955 reset the MAC if we do get this second client hello.
5958 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5959 if a DER encoded private key is RSA or DSA traditional format. Changed
5960 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5961 format DER encoded private key. Newer code should use PKCS#8 format which
5962 has the key type encoded in the ASN1 structure. Added DER private key
5963 support to pkcs8 application.
5966 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5967 ciphersuites has been selected (as required by the SSL 3/TLS 1
5968 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5969 is set, we interpret this as a request to violate the specification
5970 (the worst that can happen is a handshake failure, and 'correct'
5971 behaviour would result in a handshake failure anyway).
5974 *) In SSL_CTX_add_session, take into account that there might be multiple
5975 SSL_SESSION structures with the same session ID (e.g. when two threads
5976 concurrently obtain them from an external cache).
5977 The internal cache can handle only one SSL_SESSION with a given ID,
5978 so if there's a conflict, we now throw out the old one to achieve
5982 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5983 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5984 some routines that use cipher OIDs: some ciphers do not have OIDs
5985 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5989 *) Simplify the trust setting structure and code. Now we just have
5990 two sequences of OIDs for trusted and rejected settings. These will
5991 typically have values the same as the extended key usage extension
5992 and any application specific purposes.
5994 The trust checking code now has a default behaviour: it will just
5995 check for an object with the same NID as the passed id. Functions can
5996 be provided to override either the default behaviour or the behaviour
5997 for a given id. SSL client, server and email already have functions
5998 in place for compatibility: they check the NID and also return "trusted"
5999 if the certificate is self signed.
6002 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6003 traditional format into an EVP_PKEY structure.
6006 *) Add a password callback function PEM_cb() which either prompts for
6007 a password if usr_data is NULL or otherwise assumes it is a null
6008 terminated password. Allow passwords to be passed on command line
6009 environment or config files in a few more utilities.
6012 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6013 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6014 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6015 Update documentation.
6018 *) Support for ASN1 "NULL" type. This could be handled before by using
6019 ASN1_TYPE but there wasn't any function that would try to read a NULL
6020 and produce an error if it couldn't. For compatibility we also have
6021 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6022 don't allocate anything because they don't need to.
6025 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6027 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6029 *) Rebuild of the memory allocation routines used by OpenSSL code and
6030 possibly others as well. The purpose is to make an interface that
6031 provide hooks so anyone can build a separate set of allocation and
6032 deallocation routines to be used by OpenSSL, for example memory
6033 pool implementations, or something else, which was previously hard
6034 since Malloc(), Realloc() and Free() were defined as macros having
6035 the values malloc, realloc and free, respectively (except for Win32
6036 compilations). The same is provided for memory debugging code.
6037 OpenSSL already comes with functionality to find memory leaks, but
6038 this gives people a chance to debug other memory problems.
6040 With these changes, a new set of functions and macros have appeared:
6042 CRYPTO_set_mem_debug_functions() [F]
6043 CRYPTO_get_mem_debug_functions() [F]
6044 CRYPTO_dbg_set_options() [F]
6045 CRYPTO_dbg_get_options() [F]
6046 CRYPTO_malloc_debug_init() [M]
6048 The memory debug functions are NULL by default, unless the library
6049 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6050 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6051 gives the standard debugging functions that come with OpenSSL) or
6052 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6053 provided by the library user) must be used. When the standard
6054 debugging functions are used, CRYPTO_dbg_set_options can be used to
6055 request additional information:
6056 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6057 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6059 Also, things like CRYPTO_set_mem_functions will always give the
6060 expected result (the new set of functions is used for allocation
6061 and deallocation) at all times, regardless of platform and compiler
6064 To finish it up, some functions that were never use in any other
6065 way than through macros have a new API and new semantic:
6068 CRYPTO_dbg_realloc()
6071 All macros of value have retained their old syntax.
6072 [Richard Levitte and Bodo Moeller]
6074 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6075 ordering of SMIMECapabilities wasn't in "strength order" and there
6076 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6080 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6081 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6082 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6084 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6085 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6086 functionality to handle multipart/signed properly) and a utility
6087 called 'smime' to call all this stuff. This is based on code I
6088 originally wrote for Celo who have kindly allowed it to be
6089 included in OpenSSL.
6092 *) Add variants des_set_key_checked and des_set_key_unchecked of
6093 des_set_key (aka des_key_sched). Global variable des_check_key
6094 decides which of these is called by des_set_key; this way
6095 des_check_key behaves as it always did, but applications and
6096 the library itself, which was buggy for des_check_key == 1,
6097 have a cleaner way to pick the version they need.
6100 *) New function PKCS12_newpass() which changes the password of a
6104 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6105 dynamic mix. In both cases the ids can be used as an index into the
6106 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6107 functions so they accept a list of the field values and the
6108 application doesn't need to directly manipulate the X509_TRUST
6112 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6116 *) Modify the way the V3 extension code looks up extensions. This now
6117 works in a similar way to the object code: we have some "standard"
6118 extensions in a static table which is searched with OBJ_bsearch()
6119 and the application can add dynamic ones if needed. The file
6120 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6121 updated whenever a new extension is added to the core code and kept
6122 in ext_nid order. There is a simple program 'tabtest.c' which checks
6123 this. New extensions are not added too often so this file can readily
6124 be maintained manually.
6126 There are two big advantages in doing things this way. The extensions
6127 can be looked up immediately and no longer need to be "added" using
6128 X509V3_add_standard_extensions(): this function now does nothing.
6129 [Side note: I get *lots* of email saying the extension code doesn't
6130 work because people forget to call this function]
6131 Also no dynamic allocation is done unless new extensions are added:
6132 so if we don't add custom extensions there is no need to call
6133 X509V3_EXT_cleanup().
6136 *) Modify enc utility's salting as follows: make salting the default. Add a
6137 magic header, so unsalted files fail gracefully instead of just decrypting
6138 to garbage. This is because not salting is a big security hole, so people
6139 should be discouraged from doing it.
6142 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6143 digest to be passed on the command line but it only used this
6144 parameter when signing a certificate. Modified so all relevant
6145 operations are affected by the digest parameter including the
6146 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6147 DSA key was used because it didn't fix the digest.
6150 *) Initial certificate chain verify code. Currently tests the untrusted
6151 certificates for consistency with the verify purpose (which is set
6152 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6154 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6155 this is because it will reject chains with invalid extensions whereas
6156 every previous version of OpenSSL and SSLeay made no checks at all.
6158 Trust code: checks the root CA for the relevant trust settings. Trust
6159 settings have an initial value consistent with the verify purpose: e.g.
6160 if the verify purpose is for SSL client use it expects the CA to be
6161 trusted for SSL client use. However the default value can be changed to
6162 permit custom trust settings: one example of this would be to only trust
6163 certificates from a specific "secure" set of CAs.
6165 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6166 which should be used for version portability: especially since the
6167 verify structure is likely to change more often now.
6169 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6170 to set them. If not set then assume SSL clients will verify SSL servers
6173 Two new options to the verify program: -untrusted allows a set of
6174 untrusted certificates to be passed in and -purpose which sets the
6175 intended purpose of the certificate. If a purpose is set then the
6176 new chain verify code is used to check extension consistency.
6179 *) Support for the authority information access extension.
6182 *) Modify RSA and DSA PEM read routines to transparently handle
6183 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6184 public keys in a format compatible with certificate
6185 SubjectPublicKeyInfo structures. Unfortunately there were already
6186 functions called *_PublicKey_* which used various odd formats so
6187 these are retained for compatibility: however the DSA variants were
6188 never in a public release so they have been deleted. Changed dsa/rsa
6189 utilities to handle the new format: note no releases ever handled public
6190 keys so we should be OK.
6192 The primary motivation for this change is to avoid the same fiasco
6193 that dogs private keys: there are several incompatible private key
6194 formats some of which are standard and some OpenSSL specific and
6195 require various evil hacks to allow partial transparent handling and
6196 even then it doesn't work with DER formats. Given the option anything
6197 other than PKCS#8 should be dumped: but the other formats have to
6198 stay in the name of compatibility.
6200 With public keys and the benefit of hindsight one standard format
6201 is used which works with EVP_PKEY, RSA or DSA structures: though
6202 it clearly returns an error if you try to read the wrong kind of key.
6204 Added a -pubkey option to the 'x509' utility to output the public key.
6205 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6206 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6207 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6208 that do the same as the EVP_PKEY_assign_*() except they up the
6209 reference count of the added key (they don't "swallow" the
6213 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6214 CRLs would fail if the file contained no certificates or no CRLs:
6215 added a new function to read in both types and return the number
6216 read: this means that if none are read it will be an error. The
6217 DER versions of the certificate and CRL reader would always fail
6218 because it isn't possible to mix certificates and CRLs in DER format
6219 without choking one or the other routine. Changed this to just read
6220 a certificate: this is the best we can do. Also modified the code
6221 in apps/verify.c to take notice of return codes: it was previously
6222 attempting to read in certificates from NULL pointers and ignoring
6223 any errors: this is one reason why the cert and CRL reader seemed
6224 to work. It doesn't check return codes from the default certificate
6225 routines: these may well fail if the certificates aren't installed.
6228 *) Code to support otherName option in GeneralName.
6231 *) First update to verify code. Change the verify utility
6232 so it warns if it is passed a self signed certificate:
6233 for consistency with the normal behaviour. X509_verify
6234 has been modified to it will now verify a self signed
6235 certificate if *exactly* the same certificate appears
6236 in the store: it was previously impossible to trust a
6237 single self signed certificate. This means that:
6238 openssl verify ss.pem
6239 now gives a warning about a self signed certificate but
6240 openssl verify -CAfile ss.pem ss.pem
6244 *) For servers, store verify_result in SSL_SESSION data structure
6245 (and add it to external session representation).
6246 This is needed when client certificate verifications fails,
6247 but an application-provided verification callback (set by
6248 SSL_CTX_set_cert_verify_callback) allows accepting the session
6249 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6250 but returns 1): When the session is reused, we have to set
6251 ssl->verify_result to the appropriate error code to avoid
6253 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6255 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6256 case in PKCS7_dataInit() where the signed PKCS7 structure
6257 didn't contain any existing data because it was being created.
6258 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6260 *) Add a salt to the key derivation routines in enc.c. This
6261 forms the first 8 bytes of the encrypted file. Also add a
6262 -S option to allow a salt to be input on the command line.
6265 *) New function X509_cmp(). Oddly enough there wasn't a function
6266 to compare two certificates. We do this by working out the SHA1
6267 hash and comparing that. X509_cmp() will be needed by the trust
6271 *) SSL_get1_session() is like SSL_get_session(), but increments
6272 the reference count in the SSL_SESSION returned.
6273 [Geoff Thorpe <geoff@eu.c2.net>]
6275 *) Fix for 'req': it was adding a null to request attributes.
6276 Also change the X509_LOOKUP and X509_INFO code to handle
6277 certificate auxiliary information.
6280 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6284 *) Add the possibility to add extra information to the memory leak
6285 detecting output, to form tracebacks, showing from where each
6286 allocation was originated: CRYPTO_push_info("constant string") adds
6287 the string plus current file name and line number to a per-thread
6288 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6289 is like calling CYRPTO_pop_info() until the stack is empty.
6290 Also updated memory leak detection code to be multi-thread-safe.
6293 *) Add options -text and -noout to pkcs7 utility and delete the
6294 encryption options which never did anything. Update docs.
6297 *) Add options to some of the utilities to allow the pass phrase
6298 to be included on either the command line (not recommended on
6299 OSes like Unix) or read from the environment. Update the
6300 manpages and fix a few bugs.
6303 *) Add a few manpages for some of the openssl commands.
6306 *) Fix the -revoke option in ca. It was freeing up memory twice,
6307 leaking and not finding already revoked certificates.
6310 *) Extensive changes to support certificate auxiliary information.
6311 This involves the use of X509_CERT_AUX structure and X509_AUX
6312 functions. An X509_AUX function such as PEM_read_X509_AUX()
6313 can still read in a certificate file in the usual way but it
6314 will also read in any additional "auxiliary information". By
6315 doing things this way a fair degree of compatibility can be
6316 retained: existing certificates can have this information added
6317 using the new 'x509' options.
6319 Current auxiliary information includes an "alias" and some trust
6320 settings. The trust settings will ultimately be used in enhanced
6321 certificate chain verification routines: currently a certificate
6322 can only be trusted if it is self signed and then it is trusted
6326 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6327 The problem was that one of the replacement routines had not been working
6328 since SSLeay releases. For now the offending routine has been replaced
6329 with non-optimised assembler. Even so, this now gives around 95%
6330 performance improvement for 1024 bit RSA signs.
6333 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6334 handling. Most clients have the effective key size in bits equal to
6335 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6336 A few however don't do this and instead use the size of the decrypted key
6337 to determine the RC2 key length and the AlgorithmIdentifier to determine
6338 the effective key length. In this case the effective key length can still
6339 be 40 bits but the key length can be 168 bits for example. This is fixed
6340 by manually forcing an RC2 key into the EVP_PKEY structure because the
6341 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6342 the key length and effective key length are equal.
6345 *) Add a bunch of functions that should simplify the creation of
6346 X509_NAME structures. Now you should be able to do:
6347 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6348 and have it automatically work out the correct field type and fill in
6349 the structures. The more adventurous can try:
6350 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6351 and it will (hopefully) work out the correct multibyte encoding.
6354 *) Change the 'req' utility to use the new field handling and multibyte
6355 copy routines. Before the DN field creation was handled in an ad hoc
6356 way in req, ca, and x509 which was rather broken and didn't support
6357 BMPStrings or UTF8Strings. Since some software doesn't implement
6358 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6359 using the dirstring_type option. See the new comment in the default
6360 openssl.cnf for more info.
6363 *) Make crypto/rand/md_rand.c more robust:
6364 - Assure unique random numbers after fork().
6365 - Make sure that concurrent threads access the global counter and
6366 md serializably so that we never lose entropy in them
6367 or use exactly the same state in multiple threads.
6368 Access to the large state is not always serializable because
6369 the additional locking could be a performance killer, and
6370 md should be large enough anyway.
6373 *) New file apps/app_rand.c with commonly needed functionality
6374 for handling the random seed file.
6376 Use the random seed file in some applications that previously did not:
6378 dsaparam -genkey (which also ignored its '-rand' option),
6381 x509 (when signing).
6382 Except on systems with /dev/urandom, it is crucial to have a random
6383 seed file at least for key creation, DSA signing, and for DH exchanges;
6384 for RSA signatures we could do without one.
6386 gendh and gendsa (unlike genrsa) used to read only the first byte
6387 of each file listed in the '-rand' option. The function as previously
6388 found in genrsa is now in app_rand.c and is used by all programs
6389 that support '-rand'.
6392 *) In RAND_write_file, use mode 0600 for creating files;
6393 don't just chmod when it may be too late.
6396 *) Report an error from X509_STORE_load_locations
6397 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6400 *) New function ASN1_mbstring_copy() this copies a string in either
6401 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6402 into an ASN1_STRING type. A mask of permissible types is passed
6403 and it chooses the "minimal" type to use or an error if not type
6407 *) Add function equivalents to the various macros in asn1.h. The old
6408 macros are retained with an M_ prefix. Code inside the library can
6409 use the M_ macros. External code (including the openssl utility)
6410 should *NOT* in order to be "shared library friendly".
6413 *) Add various functions that can check a certificate's extensions
6414 to see if it usable for various purposes such as SSL client,
6415 server or S/MIME and CAs of these types. This is currently
6416 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6417 verification. Also added a -purpose flag to x509 utility to
6418 print out all the purposes.
6421 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6425 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6426 for, obtain and decode and extension and obtain its critical flag.
6427 This allows all the necessary extension code to be handled in a
6428 single function call.
6431 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6432 platforms. See crypto/rc4/rc4_enc.c for further details.
6435 *) New -noout option to asn1parse. This causes no output to be produced
6436 its main use is when combined with -strparse and -out to extract data
6437 from a file (which may not be in ASN.1 format).
6440 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6441 when producing the local key id.
6442 [Richard Levitte <levitte@stacken.kth.se>]
6444 *) New option -dhparam in s_server. This allows a DH parameter file to be
6445 stated explicitly. If it is not stated then it tries the first server
6446 certificate file. The previous behaviour hard coded the filename
6450 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6451 a public key to be input or output. For example:
6452 openssl rsa -in key.pem -pubout -out pubkey.pem
6453 Also added necessary DSA public key functions to handle this.
6456 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6457 in the message. This was handled by allowing
6458 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6459 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6461 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6462 to the end of the strings whereas this didn't. This would cause problems
6463 if strings read with d2i_ASN1_bytes() were later modified.
6464 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6466 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6467 data and it contains EOF it will end up returning an error. This is
6468 caused by input 46 bytes long. The cause is due to the way base64
6469 BIOs find the start of base64 encoded data. They do this by trying a
6470 trial decode on each line until they find one that works. When they
6471 do a flag is set and it starts again knowing it can pass all the
6472 data directly through the decoder. Unfortunately it doesn't reset
6473 the context it uses. This means that if EOF is reached an attempt
6474 is made to pass two EOFs through the context and this causes the
6475 resulting error. This can also cause other problems as well. As is
6476 usual with these problems it takes *ages* to find and the fix is
6477 trivial: move one line.
6478 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6480 *) Ugly workaround to get s_client and s_server working under Windows. The
6481 old code wouldn't work because it needed to select() on sockets and the
6482 tty (for keypresses and to see if data could be written). Win32 only
6483 supports select() on sockets so we select() with a 1s timeout on the
6484 sockets and then see if any characters are waiting to be read, if none
6485 are present then we retry, we also assume we can always write data to
6486 the tty. This isn't nice because the code then blocks until we've
6487 received a complete line of data and it is effectively polling the
6488 keyboard at 1s intervals: however it's quite a bit better than not
6489 working at all :-) A dedicated Windows application might handle this
6490 with an event loop for example.
6493 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6494 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6495 will be called when RSA_sign() and RSA_verify() are used. This is useful
6496 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6497 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6498 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6499 This necessitated the support of an extra signature type NID_md5_sha1
6500 for SSL signatures and modifications to the SSL library to use it instead
6501 of calling RSA_public_decrypt() and RSA_private_encrypt().
6504 *) Add new -verify -CAfile and -CApath options to the crl program, these
6505 will lookup a CRL issuers certificate and verify the signature in a
6506 similar way to the verify program. Tidy up the crl program so it
6507 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6508 less strict. It will now permit CRL extensions even if it is not
6509 a V2 CRL: this will allow it to tolerate some broken CRLs.
6512 *) Initialize all non-automatic variables each time one of the openssl
6513 sub-programs is started (this is necessary as they may be started
6514 multiple times from the "OpenSSL>" prompt).
6515 [Lennart Bang, Bodo Moeller]
6517 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6518 removing all other RSA functionality (this is what NO_RSA does). This
6519 is so (for example) those in the US can disable those operations covered
6520 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6524 *) Non-copying interface to BIO pairs.
6525 (still largely untested)
6528 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6529 ASCII string. This was handled independently in various places before.
6532 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6533 UTF8 strings a character at a time.
6536 *) Use client_version from client hello to select the protocol
6537 (s23_srvr.c) and for RSA client key exchange verification
6538 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6541 *) Add various utility functions to handle SPKACs, these were previously
6542 handled by poking round in the structure internals. Added new function
6543 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6544 print, verify and generate SPKACs. Based on an original idea from
6545 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6548 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6551 *) Allow the config file extension section to be overwritten on the
6552 command line. Based on an original idea from Massimiliano Pala
6553 <madwolf@comune.modena.it>. The new option is called -extensions
6554 and can be applied to ca, req and x509. Also -reqexts to override
6555 the request extensions in req and -crlexts to override the crl extensions
6559 *) Add new feature to the SPKAC handling in ca. Now you can include
6560 the same field multiple times by preceding it by "XXXX." for example:
6563 this is the same syntax as used in the req config file.
6566 *) Allow certificate extensions to be added to certificate requests. These
6567 are specified in a 'req_extensions' option of the req section of the
6568 config file. They can be printed out with the -text option to req but
6569 are otherwise ignored at present.
6572 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6573 data read consists of only the final block it would not decrypted because
6574 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6575 A misplaced 'break' also meant the decrypted final block might not be
6576 copied until the next read.
6579 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6580 a few extra parameters to the DH structure: these will be useful if
6581 for example we want the value of 'q' or implement X9.42 DH.
6584 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6585 provides hooks that allow the default DSA functions or functions on a
6586 "per key" basis to be replaced. This allows hardware acceleration and
6587 hardware key storage to be handled without major modification to the
6588 library. Also added low level modexp hooks and CRYPTO_EX structure and
6589 associated functions.
6592 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6593 as "read only": it can't be written to and the buffer it points to will
6594 not be freed. Reading from a read only BIO is much more efficient than
6595 a normal memory BIO. This was added because there are several times when
6596 an area of memory needs to be read from a BIO. The previous method was
6597 to create a memory BIO and write the data to it, this results in two
6598 copies of the data and an O(n^2) reading algorithm. There is a new
6599 function BIO_new_mem_buf() which creates a read only memory BIO from
6600 an area of memory. Also modified the PKCS#7 routines to use read only
6604 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6605 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6606 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6607 but a retry condition occured while trying to read the rest.
6610 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6611 NID_pkcs7_encrypted by default: this was wrong since this should almost
6612 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6613 the encrypted data type: this is a more sensible place to put it and it
6614 allows the PKCS#12 code to be tidied up that duplicated this
6618 *) Changed obj_dat.pl script so it takes its input and output files on
6619 the command line. This should avoid shell escape redirection problems
6623 *) Initial support for certificate extension requests, these are included
6624 in things like Xenroll certificate requests. Included functions to allow
6625 extensions to be obtained and added.
6628 *) -crlf option to s_client and s_server for sending newlines as
6629 CRLF (as required by many protocols).
6632 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6634 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6635 [Ralf S. Engelschall]
6637 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6638 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6640 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6644 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6645 DH parameters/keys (q is lost during that conversion, but the resulting
6646 DH parameters contain its length).
6648 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6649 much faster than DH_generate_parameters (which creates parameters
6650 where p = 2*q + 1), and also the smaller q makes DH computations
6651 much more efficient (160-bit exponentiation instead of 1024-bit
6652 exponentiation); so this provides a convenient way to support DHE
6653 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6654 utter importance to use
6655 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6657 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6658 when such DH parameters are used, because otherwise small subgroup
6659 attacks may become possible!
6662 *) Avoid memory leak in i2d_DHparams.
6665 *) Allow the -k option to be used more than once in the enc program:
6666 this allows the same encrypted message to be read by multiple recipients.
6669 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6670 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6671 it will always use the numerical form of the OID, even if it has a short
6675 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6676 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6677 otherwise bn_mod_exp was called. In the case of hardware keys for example
6678 no private key components need be present and it might store extra data
6679 in the RSA structure, which cannot be accessed from bn_mod_exp.
6680 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6681 private key operations.
6684 *) Added support for SPARC Linux.
6687 *) pem_password_cb function type incompatibly changed from
6688 typedef int pem_password_cb(char *buf, int size, int rwflag);
6690 ....(char *buf, int size, int rwflag, void *userdata);
6691 so that applications can pass data to their callbacks:
6692 The PEM[_ASN1]_{read,write}... functions and macros now take an
6693 additional void * argument, which is just handed through whenever
6694 the password callback is called.
6695 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6697 New function SSL_CTX_set_default_passwd_cb_userdata.
6699 Compatibility note: As many C implementations push function arguments
6700 onto the stack in reverse order, the new library version is likely to
6701 interoperate with programs that have been compiled with the old
6702 pem_password_cb definition (PEM_whatever takes some data that
6703 happens to be on the stack as its last argument, and the callback
6704 just ignores this garbage); but there is no guarantee whatsoever that
6707 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6708 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6709 problems not only on Windows, but also on some Unix platforms.
6710 To avoid problematic command lines, these definitions are now in an
6711 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6712 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6715 *) MIPS III/IV assembler module is reimplemented.
6718 *) More DES library cleanups: remove references to srand/rand and
6719 delete an unused file.
6722 *) Add support for the the free Netwide assembler (NASM) under Win32,
6723 since not many people have MASM (ml) and it can be hard to obtain.
6724 This is currently experimental but it seems to work OK and pass all
6725 the tests. Check out INSTALL.W32 for info.
6728 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6729 without temporary keys kept an extra copy of the server key,
6730 and connections with temporary keys did not free everything in case
6734 *) New function RSA_check_key and new openssl rsa option -check
6735 for verifying the consistency of RSA keys.
6736 [Ulf Moeller, Bodo Moeller]
6738 *) Various changes to make Win32 compile work:
6739 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6740 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6741 comparison" warnings.
6742 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6745 *) Add a debugging option to PKCS#5 v2 key generation function: when
6746 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6747 derived keys are printed to stderr.
6750 *) Copy the flags in ASN1_STRING_dup().
6751 [Roman E. Pavlov <pre@mo.msk.ru>]
6753 *) The x509 application mishandled signing requests containing DSA
6754 keys when the signing key was also DSA and the parameters didn't match.
6756 It was supposed to omit the parameters when they matched the signing key:
6757 the verifying software was then supposed to automatically use the CA's
6758 parameters if they were absent from the end user certificate.
6760 Omitting parameters is no longer recommended. The test was also
6761 the wrong way round! This was probably due to unusual behaviour in
6762 EVP_cmp_parameters() which returns 1 if the parameters match.
6763 This meant that parameters were omitted when they *didn't* match and
6764 the certificate was useless. Certificates signed with 'ca' didn't have
6766 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6768 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6769 The interface is as follows:
6770 Applications can use
6771 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6772 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6773 "off" is now the default.
6774 The library internally uses
6775 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6776 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6777 to disable memory-checking temporarily.
6779 Some inconsistent states that previously were possible (and were
6780 even the default) are now avoided.
6782 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6783 with each memory chunk allocated; this is occasionally more helpful
6784 than just having a counter.
6786 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6788 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6792 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6793 which largely parallels "options", but is for changing API behaviour,
6794 whereas "options" are about protocol behaviour.
6795 Initial "mode" flags are:
6797 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6798 a single record has been written.
6799 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6800 retries use the same buffer location.
6801 (But all of the contents must be
6805 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6808 *) Fix problems with no-hmac etc.
6809 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6811 *) New functions RSA_get_default_method(), RSA_set_method() and
6812 RSA_get_method(). These allows replacement of RSA_METHODs without having
6813 to mess around with the internals of an RSA structure.
6816 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6817 Also really enable memory leak checks in openssl.c and in some
6819 [Chad C. Mulligan, Bodo Moeller]
6821 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6822 up the length of negative integers. This has now been simplified to just
6823 store the length when it is first determined and use it later, rather
6824 than trying to keep track of where data is copied and updating it to
6826 [Steve Henson, reported by Brien Wheeler
6827 <bwheeler@authentica-security.com>]
6829 *) Add a new function PKCS7_signatureVerify. This allows the verification
6830 of a PKCS#7 signature but with the signing certificate passed to the
6831 function itself. This contrasts with PKCS7_dataVerify which assumes the
6832 certificate is present in the PKCS#7 structure. This isn't always the
6833 case: certificates can be omitted from a PKCS#7 structure and be
6834 distributed by "out of band" means (such as a certificate database).
6837 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6838 function prototypes in pem.h, also change util/mkdef.pl to add the
6839 necessary function names.
6842 *) mk1mf.pl (used by Windows builds) did not properly read the
6843 options set by Configure in the top level Makefile, and Configure
6844 was not even able to write more than one option correctly.
6845 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6848 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6849 file to be loaded from a BIO or FILE pointer. The BIO version will
6850 for example allow memory BIOs to contain config info.
6853 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6854 Whoever hopes to achieve shared-library compatibility across versions
6855 must use this, not the compile-time macro.
6856 (Exercise 0.9.4: Which is the minimum library version required by
6858 Note: All this applies only to multi-threaded programs, others don't
6862 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6863 through a BIO pair triggered the default case, i.e.
6864 SSLerr(...,SSL_R_UNKNOWN_STATE).
6867 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6868 can use the SSL library even if none of the specific BIOs is
6872 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6873 for the encoded length.
6874 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6876 *) Add initial documentation of the X509V3 functions.
6879 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6880 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6881 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6882 secure PKCS#8 private key format with a high iteration count.
6885 *) Fix determination of Perl interpreter: A perl or perl5
6886 _directory_ in $PATH was also accepted as the interpreter.
6887 [Ralf S. Engelschall]
6889 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6890 wrong with it but it was very old and did things like calling
6891 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6895 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6896 to use the new extension code.
6899 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6900 with macros. This should make it easier to change their form, add extra
6901 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6905 *) Add to configuration table a new entry that can specify an alternative
6906 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6907 according to Mark Crispin <MRC@Panda.COM>.
6911 *) DES CBC did not update the IV. Weird.
6914 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6915 Changing the behaviour of the former might break existing programs --
6916 where IV updating is needed, des_ncbc_encrypt can be used.
6919 *) When bntest is run from "make test" it drives bc to check its
6920 calculations, as well as internally checking them. If an internal check
6921 fails, it needs to cause bc to give a non-zero result or make test carries
6922 on without noticing the failure. Fixed.
6925 *) DES library cleanups.
6928 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6929 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6930 ciphers. NOTE: although the key derivation function has been verified
6931 against some published test vectors it has not been extensively tested
6932 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6936 *) Instead of "mkdir -p", which is not fully portable, use new
6937 Perl script "util/mkdir-p.pl".
6940 *) Rewrite the way password based encryption (PBE) is handled. It used to
6941 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6942 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6943 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6944 the 'parameter' field of the AlgorithmIdentifier is passed to the
6945 underlying key generation function so it must do its own ASN1 parsing.
6946 This has also changed the EVP_PBE_CipherInit() function which now has a
6947 'parameter' argument instead of literal salt and iteration count values
6948 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6951 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6952 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6953 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6954 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6955 value was just used as a "magic string" and not used directly its
6956 value doesn't matter.
6959 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6963 *) "linux-sparc64" configuration (ultrapenguin).
6964 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6965 "linux-sparc" configuration.
6966 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6968 *) config now generates no-xxx options for missing ciphers.
6971 *) Support the EBCDIC character set (work in progress).
6972 File ebcdic.c not yet included because it has a different license.
6973 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6975 *) Support BS2000/OSD-POSIX.
6976 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6978 *) Make callbacks for key generation use void * instead of char *.
6981 *) Make S/MIME samples compile (not yet tested).
6984 *) Additional typesafe stacks.
6987 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6991 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6993 *) New configuration variant "sco5-gcc".
6995 *) Updated some demos.
6996 [Sean O Riordain, Wade Scholine]
6998 *) Add missing BIO_free at exit of pkcs12 application.
7001 *) Fix memory leak in conf.c.
7004 *) Updates for Win32 to assembler version of MD5.
7007 *) Set #! path to perl in apps/der_chop to where we found it
7008 instead of using a fixed path.
7011 *) SHA library changes for irix64-mips4-cc.
7014 *) Improvements for VMS support.
7018 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7020 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7021 This also avoids the problems with SC4.2 and unpatched SC5.
7022 [Andy Polyakov <appro@fy.chalmers.se>]
7024 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7025 These are required because of the typesafe stack would otherwise break
7026 existing code. If old code used a structure member which used to be STACK
7027 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7028 sk_num or sk_value it would produce an error because the num, data members
7029 are not present in STACK_OF. Now it just produces a warning. sk_set
7030 replaces the old method of assigning a value to sk_value
7031 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7032 that does this will no longer work (and should use sk_set instead) but
7033 this could be regarded as a "questionable" behaviour anyway.
7036 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7037 correctly handle encrypted S/MIME data.
7040 *) Change type of various DES function arguments from des_cblock
7041 (which means, in function argument declarations, pointer to char)
7042 to des_cblock * (meaning pointer to array with 8 char elements),
7043 which allows the compiler to do more typechecking; it was like
7044 that back in SSLeay, but with lots of ugly casts.
7046 Introduce new type const_des_cblock.
7049 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7050 problems: find RecipientInfo structure that matches recipient certificate
7051 and initialise the ASN1 structures properly based on passed cipher.
7054 *) Belatedly make the BN tests actually check the results.
7057 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7058 to and from BNs: it was completely broken. New compilation option
7059 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7060 key elements as negative integers.
7063 *) Reorganize and speed up MD5.
7064 [Andy Polyakov <appro@fy.chalmers.se>]
7067 [Richard Levitte <richard@levitte.org>]
7069 *) New option -out to asn1parse to allow the parsed structure to be
7070 output to a file. This is most useful when combined with the -strparse
7071 option to examine the output of things like OCTET STRINGS.
7074 *) Make SSL library a little more fool-proof by not requiring any longer
7075 that SSL_set_{accept,connect}_state be called before
7076 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7077 in many applications because usually everything *appeared* to work as
7078 intended anyway -- now it really works as intended).
7081 *) Move openssl.cnf out of lib/.
7084 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7085 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7086 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7087 [Ralf S. Engelschall]
7089 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7090 handle PKCS#7 enveloped data properly.
7091 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7093 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7094 copying pointers. The cert_st handling is changed by this in
7095 various ways (and thus what used to be known as ctx->default_cert
7096 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7097 any longer when s->cert does not give us what we need).
7098 ssl_cert_instantiate becomes obsolete by this change.
7099 As soon as we've got the new code right (possibly it already is?),
7100 we have solved a couple of bugs of the earlier code where s->cert
7101 was used as if it could not have been shared with other SSL structures.
7103 Note that using the SSL API in certain dirty ways now will result
7104 in different behaviour than observed with earlier library versions:
7105 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7106 does not influence s as it used to.
7108 In order to clean up things more thoroughly, inside SSL_SESSION
7109 we don't use CERT any longer, but a new structure SESS_CERT
7110 that holds per-session data (if available); currently, this is
7111 the peer's certificate chain and, for clients, the server's certificate
7112 and temporary key. CERT holds only those values that can have
7113 meaningful defaults in an SSL_CTX.
7116 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7117 from the internal representation. Various PKCS#7 fixes: remove some
7118 evil casts and set the enc_dig_alg field properly based on the signing
7122 *) Allow PKCS#12 password to be set from the command line or the
7123 environment. Let 'ca' get its config file name from the environment
7124 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7128 *) Allow certificate policies extension to use an IA5STRING for the
7129 organization field. This is contrary to the PKIX definition but
7130 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7134 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7135 without disallowing inline assembler and the like for non-pedantic builds.
7138 *) Support Borland C++ builder.
7139 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7144 *) SHA-1 cleanups and performance enhancements.
7145 [Andy Polyakov <appro@fy.chalmers.se>]
7147 *) Sparc v8plus assembler for the bignum library.
7148 [Andy Polyakov <appro@fy.chalmers.se>]
7150 *) Accept any -xxx and +xxx compiler options in Configure.
7153 *) Update HPUX configuration.
7156 *) Add missing sk_<type>_unshift() function to safestack.h
7157 [Ralf S. Engelschall]
7159 *) New function SSL_CTX_use_certificate_chain_file that sets the
7160 "extra_cert"s in addition to the certificate. (This makes sense
7161 only for "PEM" format files, as chains as a whole are not
7165 *) Support verify_depth from the SSL API.
7166 x509_vfy.c had what can be considered an off-by-one-error:
7167 Its depth (which was not part of the external interface)
7168 was actually counting the number of certificates in a chain;
7169 now it really counts the depth.
7172 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7173 instead of X509err, which often resulted in confusing error
7174 messages since the error codes are not globally unique
7175 (e.g. an alleged error in ssl3_accept when a certificate
7176 didn't match the private key).
7178 *) New function SSL_CTX_set_session_id_context that allows to set a default
7179 value (so that you don't need SSL_set_session_id_context for each
7180 connection using the SSL_CTX).
7183 *) OAEP decoding bug fix.
7186 *) Support INSTALL_PREFIX for package builders, as proposed by
7190 *) New Configure options "threads" and "no-threads". For systems
7191 where the proper compiler options are known (currently Solaris
7192 and Linux), "threads" is the default.
7195 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7198 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7199 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7200 such as /usr/local/bin.
7203 *) "make linux-shared" to build shared libraries.
7204 [Niels Poppe <niels@netbox.org>]
7206 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7209 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7210 extension adding in x509 utility.
7213 *) Remove NOPROTO sections and error code comments.
7216 *) Partial rewrite of the DEF file generator to now parse the ANSI
7220 *) New Configure options --prefix=DIR and --openssldir=DIR.
7223 *) Complete rewrite of the error code script(s). It is all now handled
7224 by one script at the top level which handles error code gathering,
7225 header rewriting and C source file generation. It should be much better
7226 than the old method: it now uses a modified version of Ulf's parser to
7227 read the ANSI prototypes in all header files (thus the old K&R definitions
7228 aren't needed for error creation any more) and do a better job of
7229 translating function codes into names. The old 'ASN1 error code imbedded
7230 in a comment' is no longer necessary and it doesn't use .err files which
7231 have now been deleted. Also the error code call doesn't have to appear all
7232 on one line (which resulted in some large lines...).
7235 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7238 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7239 0 (which usually indicates a closed connection), but continue reading.
7242 *) Fix some race conditions.
7245 *) Add support for CRL distribution points extension. Add Certificate
7246 Policies and CRL distribution points documentation.
7249 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7252 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7253 8 of keying material. Merlin has also confirmed interop with this fix
7254 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7255 [Merlin Hughes <merlin@baltimore.ie>]
7257 *) Fix lots of warnings.
7258 [Richard Levitte <levitte@stacken.kth.se>]
7260 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7261 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7262 [Richard Levitte <levitte@stacken.kth.se>]
7264 *) Fix problems with sizeof(long) == 8.
7265 [Andy Polyakov <appro@fy.chalmers.se>]
7267 *) Change functions to ANSI C.
7270 *) Fix typos in error codes.
7271 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7273 *) Remove defunct assembler files from Configure.
7276 *) SPARC v8 assembler BIGNUM implementation.
7277 [Andy Polyakov <appro@fy.chalmers.se>]
7279 *) Support for Certificate Policies extension: both print and set.
7280 Various additions to support the r2i method this uses.
7283 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7284 return a const string when you are expecting an allocated buffer.
7287 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7288 types DirectoryString and DisplayText.
7291 *) Add code to allow r2i extensions to access the configuration database,
7292 add an LHASH database driver and add several ctx helper functions.
7295 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7296 fail when they extended the size of a BIGNUM.
7299 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7300 support typesafe stack.
7303 *) Fix typo in SSL_[gs]et_options().
7304 [Nils Frostberg <nils@medcom.se>]
7306 *) Delete various functions and files that belonged to the (now obsolete)
7307 old X509V3 handling code.
7310 *) New Configure option "rsaref".
7313 *) Don't auto-generate pem.h.
7316 *) Introduce type-safe ASN.1 SETs.
7319 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7320 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7322 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7323 that links with OpenSSL (well at least cause lots of warnings), but fear
7324 not: the conversion is trivial, and it eliminates loads of evil casts. A
7325 few STACKed things have been converted already. Feel free to convert more.
7326 In the fullness of time, I'll do away with the STACK type altogether.
7329 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7330 specified in <certfile> by updating the entry in the index.txt file.
7331 This way one no longer has to edit the index.txt file manually for
7332 revoking a certificate. The -revoke option does the gory details now.
7333 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7335 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7336 `-text' option at all and this way the `-noout -text' combination was
7337 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7338 [Ralf S. Engelschall]
7340 *) Make sure a corresponding plain text error message exists for the
7341 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7342 verify callback function determined that a certificate was revoked.
7343 [Ralf S. Engelschall]
7345 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7346 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7347 all available cipers including rc5, which was forgotten until now.
7348 In order to let the testing shell script know which algorithms
7349 are available, a new (up to now undocumented) command
7350 "openssl list-cipher-commands" is used.
7353 *) Bugfix: s_client occasionally would sleep in select() when
7354 it should have checked SSL_pending() first.
7357 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7358 the raw DSA values prior to ASN.1 encoding.
7361 *) Tweaks to Configure
7362 [Niels Poppe <niels@netbox.org>]
7364 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7368 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7371 *) New config option to avoid instructions that are illegal on the 80386.
7372 The default code is faster, but requires at least a 486.
7375 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7376 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7377 same as SSL2_VERSION anyway.
7380 *) New "-showcerts" option for s_client.
7383 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7384 application. Various cleanups and fixes.
7387 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7388 modify error routines to work internally. Add error codes and PBE init
7389 to library startup routines.
7392 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7393 packing functions to asn1 and evp. Changed function names and error
7394 codes along the way.
7397 *) PKCS12 integration: and so it begins... First of several patches to
7398 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7399 objects to objects.h
7402 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7403 and display support for Thawte strong extranet extension.
7406 *) Add LinuxPPC support.
7407 [Jeff Dubrule <igor@pobox.org>]
7409 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7410 bn_div_words in alpha.s.
7411 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7413 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7414 OAEP isn't supported when OpenSSL is built with RSAref.
7415 [Ulf Moeller <ulf@fitug.de>]
7417 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7418 so they no longer are missing under -DNOPROTO.
7419 [Soren S. Jorvang <soren@t.dk>]
7422 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7424 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7425 doesn't work when the session is reused. Coming soon!
7428 *) Fix a security hole, that allows sessions to be reused in the wrong
7429 context thus bypassing client cert protection! All software that uses
7430 client certs and session caches in multiple contexts NEEDS PATCHING to
7431 allow session reuse! A fuller solution is in the works.
7432 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7434 *) Some more source tree cleanups (removed obsolete files
7435 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7436 permission on "config" script to be executable) and a fix for the INSTALL
7438 [Ulf Moeller <ulf@fitug.de>]
7440 *) Remove some legacy and erroneous uses of malloc, free instead of
7442 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7444 *) Make rsa_oaep_test return non-zero on error.
7445 [Ulf Moeller <ulf@fitug.de>]
7447 *) Add support for native Solaris shared libraries. Configure
7448 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7449 if someone would make that last step automatic.
7450 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7452 *) ctx_size was not built with the right compiler during "make links". Fixed.
7455 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7456 except NULL ciphers". This means the default cipher list will no longer
7457 enable NULL ciphers. They need to be specifically enabled e.g. with
7458 the string "DEFAULT:eNULL".
7461 *) Fix to RSA private encryption routines: if p < q then it would
7462 occasionally produce an invalid result. This will only happen with
7463 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7466 *) Be less restrictive and allow also `perl util/perlpath.pl
7467 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7468 because this way one can also use an interpreter named `perl5' (which is
7469 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7470 installed as `perl').
7471 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7473 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7474 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7476 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7477 advapi32.lib to Win32 build and change the pem test comparision
7478 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7479 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7480 and crypto/des/ede_cbcm_enc.c.
7483 *) DES quad checksum was broken on big-endian architectures. Fixed.
7486 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7487 Win32 test batch file so it (might) work again. The Win32 test batch file
7488 is horrible: I feel ill....
7491 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7492 in e_os.h. Audit of header files to check ANSI and non ANSI
7493 sections: 10 functions were absent from non ANSI section and not exported
7494 from Windows DLLs. Fixed up libeay.num for new functions.
7497 *) Make `openssl version' output lines consistent.
7498 [Ralf S. Engelschall]
7500 *) Fix Win32 symbol export lists for BIO functions: Added
7501 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7502 to ms/libeay{16,32}.def.
7503 [Ralf S. Engelschall]
7505 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7506 fine under Unix and passes some trivial tests I've now added. But the
7507 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7508 added to make sure no one expects that this stuff really works in the
7509 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7510 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7512 [Ralf S. Engelschall]
7514 *) Fix the generation of two part addresses in perl.
7515 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7517 *) Add config entry for Linux on MIPS.
7518 [John Tobey <jtobey@channel1.com>]
7520 *) Make links whenever Configure is run, unless we are on Windoze.
7523 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7524 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7528 *) Add a useful kludge to allow package maintainers to specify compiler and
7529 other platforms details on the command line without having to patch the
7530 Configure script everytime: One now can use ``perl Configure
7531 <id>:<details>'', i.e. platform ids are allowed to have details appended
7532 to them (seperated by colons). This is treated as there would be a static
7533 pre-configured entry in Configure's %table under key <id> with value
7534 <details> and ``perl Configure <id>'' is called. So, when you want to
7535 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7536 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7537 now, which overrides the FreeBSD-elf entry on-the-fly.
7538 [Ralf S. Engelschall]
7540 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7543 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7544 on the `perl Configure ...' command line. This way one can compile
7545 OpenSSL libraries with Position Independent Code (PIC) which is needed
7546 for linking it into DSOs.
7547 [Ralf S. Engelschall]
7549 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7553 *) Cleaned up the LICENSE document: The official contact for any license
7554 questions now is the OpenSSL core team under openssl-core@openssl.org.
7555 And add a paragraph about the dual-license situation to make sure people
7556 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7557 to the OpenSSL toolkit.
7558 [Ralf S. Engelschall]
7560 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7561 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7562 Additonally cleaned up the `make links' target: Remove unnecessary
7563 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7564 to speed processing and no longer clutter the display with confusing
7565 stuff. Instead only the actually done links are displayed.
7566 [Ralf S. Engelschall]
7568 *) Permit null encryption ciphersuites, used for authentication only. It used
7569 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7570 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7574 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7575 signed attributes when verifying signatures (this would break them),
7576 the detached data encoding was wrong and public keys obtained using
7577 X509_get_pubkey() weren't freed.
7580 *) Add text documentation for the BUFFER functions. Also added a work around
7581 to a Win95 console bug. This was triggered by the password read stuff: the
7582 last character typed gets carried over to the next fread(). If you were
7583 generating a new cert request using 'req' for example then the last
7584 character of the passphrase would be CR which would then enter the first
7588 *) Added the new `Includes OpenSSL Cryptography Software' button as
7589 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7590 button and can be used by applications based on OpenSSL to show the
7591 relationship to the OpenSSL project.
7592 [Ralf S. Engelschall]
7594 *) Remove confusing variables in function signatures in files
7595 ssl/ssl_lib.c and ssl/ssl.h.
7596 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7598 *) Don't install bss_file.c under PREFIX/include/
7599 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7601 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7602 functions that return function pointers and has support for NT specific
7603 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7604 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7605 unsigned to signed types: this was killing the Win32 compile.
7608 *) Add new certificate file to stack functions,
7609 SSL_add_dir_cert_subjects_to_stack() and
7610 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7611 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7612 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7613 This means that Apache-SSL and similar packages don't have to mess around
7614 to add as many CAs as they want to the preferred list.
7617 *) Experiment with doxygen documentation. Currently only partially applied to
7619 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7620 openssl.doxy as the configuration file.
7623 *) Get rid of remaining C++-style comments which strict C compilers hate.
7624 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7626 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7627 compiled in by default: it has problems with large keys.
7630 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7631 DH private keys and/or callback functions which directly correspond to
7632 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7633 is needed for applications which have to configure certificates on a
7634 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7636 For the RSA certificate situation is makes no difference, but
7637 for the DSA certificate situation this fixes the "no shared cipher"
7638 problem where the OpenSSL cipher selection procedure failed because the
7639 temporary keys were not overtaken from the context and the API provided
7640 no way to reconfigure them.
7641 The new functions now let applications reconfigure the stuff and they
7642 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7643 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7644 non-public-API function ssl_cert_instantiate() is used as a helper
7645 function and also to reduce code redundancy inside ssl_rsa.c.
7646 [Ralf S. Engelschall]
7648 *) Move s_server -dcert and -dkey options out of the undocumented feature
7649 area because they are useful for the DSA situation and should be
7650 recognized by the users.
7651 [Ralf S. Engelschall]
7653 *) Fix the cipher decision scheme for export ciphers: the export bits are
7654 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7655 SSL_EXP_MASK. So, the original variable has to be used instead of the
7656 already masked variable.
7657 [Richard Levitte <levitte@stacken.kth.se>]
7659 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7660 [Richard Levitte <levitte@stacken.kth.se>]
7662 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7663 from `int' to `unsigned int' because it's a length and initialized by
7664 EVP_DigestFinal() which expects an `unsigned int *'.
7665 [Richard Levitte <levitte@stacken.kth.se>]
7667 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7668 script. Instead use the usual Shell->Perl transition trick.
7669 [Ralf S. Engelschall]
7671 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7672 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7673 -noout -modulus' as it's already the case for `openssl rsa -noout
7674 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7675 currently the public key is printed (a decision which was already done by
7676 `openssl dsa -modulus' in the past) which serves a similar purpose.
7677 Additionally the NO_RSA no longer completely removes the whole -modulus
7678 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7680 [Ralf S. Engelschall]
7682 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7683 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7684 [Arne Ansper <arne@ats.cyber.ee>]
7686 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7687 to be added. Now both 'req' and 'ca' can use new objects defined in the
7691 *) Add cool BIO that does syslog (or event log on NT).
7692 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7694 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7695 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7696 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7697 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7700 *) Add preliminary config info for new extension code.
7703 *) Make RSA_NO_PADDING really use no padding.
7704 [Ulf Moeller <ulf@fitug.de>]
7706 *) Generate errors when private/public key check is done.
7709 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7710 for some CRL extensions and new objects added.
7713 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7714 key usage extension and fuller support for authority key id.
7717 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7718 padding method for RSA, which is recommended for new applications in PKCS
7719 #1 v2.0 (RFC 2437, October 1998).
7720 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7721 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7722 against Bleichbacher's attack on RSA.
7723 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7726 *) Updates to the new SSL compression code
7727 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7729 *) Fix so that the version number in the master secret, when passed
7730 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7731 (because the server will not accept higher), that the version number
7732 is 0x03,0x01, not 0x03,0x00
7733 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7735 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7736 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7737 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7740 *) Support for RAW extensions where an arbitrary extension can be
7741 created by including its DER encoding. See apps/openssl.cnf for
7745 *) Make sure latest Perl versions don't interpret some generated C array
7746 code as Perl array code in the crypto/err/err_genc.pl script.
7747 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7749 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7750 not many people have the assembler. Various Win32 compilation fixes and
7751 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7755 *) Modify configure script 'Configure' to automatically create crypto/date.h
7756 file under Win32 and also build pem.h from pem.org. New script
7757 util/mkfiles.pl to create the MINFO file on environments that can't do a
7758 'make files': perl util/mkfiles.pl >MINFO should work.
7761 *) Major rework of DES function declarations, in the pursuit of correctness
7762 and purity. As a result, many evil casts evaporated, and some weirdness,
7763 too. You may find this causes warnings in your code. Zapping your evil
7764 casts will probably fix them. Mostly.
7767 *) Fix for a typo in asn1.h. Bug fix to object creation script
7768 obj_dat.pl. It considered a zero in an object definition to mean
7769 "end of object": none of the objects in objects.h have any zeros
7770 so it wasn't spotted.
7771 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7773 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7774 Masking (CBCM). In the absence of test vectors, the best I have been able
7775 to do is check that the decrypt undoes the encrypt, so far. Send me test
7776 vectors if you have them.
7779 *) Correct calculation of key length for export ciphers (too much space was
7780 allocated for null ciphers). This has not been tested!
7783 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7784 message is now correct (it understands "crypto" and "ssl" on its
7785 command line). There is also now an "update" option. This will update
7786 the util/ssleay.num and util/libeay.num files with any new functions.
7788 perl util/mkdef.pl crypto ssl update
7789 it will update them.
7792 *) Overhauled the Perl interface (perl/*):
7793 - ported BN stuff to OpenSSL's different BN library
7794 - made the perl/ source tree CVS-aware
7795 - renamed the package from SSLeay to OpenSSL (the files still contain
7796 their history because I've copied them in the repository)
7797 - removed obsolete files (the test scripts will be replaced
7798 by better Test::Harness variants in the future)
7799 [Ralf S. Engelschall]
7801 *) First cut for a very conservative source tree cleanup:
7802 1. merge various obsolete readme texts into doc/ssleay.txt
7803 where we collect the old documents and readme texts.
7804 2. remove the first part of files where I'm already sure that we no
7805 longer need them because of three reasons: either they are just temporary
7806 files which were left by Eric or they are preserved original files where
7807 I've verified that the diff is also available in the CVS via "cvs diff
7808 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7809 the crypto/md/ stuff).
7810 [Ralf S. Engelschall]
7812 *) More extension code. Incomplete support for subject and issuer alt
7813 name, issuer and authority key id. Change the i2v function parameters
7814 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7815 what that's for :-) Fix to ASN1 macro which messed up
7816 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7819 *) Preliminary support for ENUMERATED type. This is largely copied from the
7823 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7824 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7826 *) Make sure `make rehash' target really finds the `openssl' program.
7827 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7829 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7830 like to hear about it if this slows down other processors.
7833 *) Add CygWin32 platform information to Configure script.
7834 [Alan Batie <batie@aahz.jf.intel.com>]
7836 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7837 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7839 *) New program nseq to manipulate netscape certificate sequences
7842 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7846 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7847 but the BN code had some problems that would cause failures when
7848 doing certificate verification and some other functions.
7849 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7851 *) Add ASN1 and PEM code to support netscape certificate sequences.
7854 *) Add ASN1 and PEM code to support netscape certificate sequences.
7857 *) Add several PKIX and private extended key usage OIDs.
7860 *) Modify the 'ca' program to handle the new extension code. Modify
7861 openssl.cnf for new extension format, add comments.
7864 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7865 and add a sample to openssl.cnf so req -x509 now adds appropriate
7869 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7870 error code, add initial support to X509_print() and x509 application.
7873 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7874 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7875 stuff is currently isolated and isn't even compiled yet.
7878 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7879 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7880 Removed the versions check from X509 routines when loading extensions:
7881 this allows certain broken certificates that don't set the version
7882 properly to be processed.
7885 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7886 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7887 can still be regenerated with "make depend".
7890 *) Spelling mistake in C version of CAST-128.
7891 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7893 *) Changes to the error generation code. The perl script err-code.pl
7894 now reads in the old error codes and retains the old numbers, only
7895 adding new ones if necessary. It also only changes the .err files if new
7896 codes are added. The makefiles have been modified to only insert errors
7897 when needed (to avoid needlessly modifying header files). This is done
7898 by only inserting errors if the .err file is newer than the auto generated
7899 C file. To rebuild all the error codes from scratch (the old behaviour)
7900 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7901 or delete all the .err files.
7904 *) CAST-128 was incorrectly implemented for short keys. The C version has
7905 been fixed, but is untested. The assembler versions are also fixed, but
7906 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7907 to regenerate it if needed.
7908 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7909 Hagino <itojun@kame.net>]
7911 *) File was opened incorrectly in randfile.c.
7912 [Ulf Möller <ulf@fitug.de>]
7914 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7915 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7916 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7917 al: it's just almost always a UTCTime. Note this patch adds new error
7918 codes so do a "make errors" if there are problems.
7921 *) Correct Linux 1 recognition in config.
7922 [Ulf Möller <ulf@fitug.de>]
7924 *) Remove pointless MD5 hash when using DSA keys in ca.
7925 [Anonymous <nobody@replay.com>]
7927 *) Generate an error if given an empty string as a cert directory. Also
7928 generate an error if handed NULL (previously returned 0 to indicate an
7929 error, but didn't set one).
7930 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7932 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7935 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7936 parameters. This was causing a warning which killed off the Win32 compile.
7939 *) Remove C++ style comments from crypto/bn/bn_local.h.
7940 [Neil Costigan <neil.costigan@celocom.com>]
7942 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7943 based on a text string, looking up short and long names and finally
7944 "dot" format. The "dot" format stuff didn't work. Added new function
7945 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7946 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7947 OID is not part of the table.
7950 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7951 X509_LOOKUP_by_alias().
7954 *) Sort openssl functions by name.
7957 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7958 encryption from sample DSA keys (in case anyone is interested the password
7962 *) Make _all_ *_free functions accept a NULL pointer.
7963 [Frans Heymans <fheymans@isaserver.be>]
7965 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7967 [Anonymous <nobody@replay.com>]
7969 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7970 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7972 *) Don't blow it for numeric -newkey arguments to apps/req.
7973 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7975 *) Temp key "for export" tests were wrong in s3_srvr.c.
7976 [Anonymous <nobody@replay.com>]
7978 *) Add prototype for temp key callback functions
7979 SSL_CTX_set_tmp_{rsa,dh}_callback().
7982 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7983 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7986 *) X509_name_add_entry() freed the wrong thing after an error.
7987 [Arne Ansper <arne@ats.cyber.ee>]
7989 *) rsa_eay.c would attempt to free a NULL context.
7990 [Arne Ansper <arne@ats.cyber.ee>]
7992 *) BIO_s_socket() had a broken should_retry() on Windoze.
7993 [Arne Ansper <arne@ats.cyber.ee>]
7995 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7996 [Arne Ansper <arne@ats.cyber.ee>]
7998 *) Make sure the already existing X509_STORE->depth variable is initialized
7999 in X509_STORE_new(), but document the fact that this variable is still
8000 unused in the certificate verification process.
8001 [Ralf S. Engelschall]
8003 *) Fix the various library and apps files to free up pkeys obtained from
8004 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8007 *) Fix reference counting in X509_PUBKEY_get(). This makes
8008 demos/maurice/example2.c work, amongst others, probably.
8009 [Steve Henson and Ben Laurie]
8011 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8012 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8013 are no longer created. This way we have a single and consistent command
8014 line interface `openssl <command>', similar to `cvs <command>'.
8015 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8017 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8018 BIT STRING wrapper always have zero unused bits.
8021 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8024 *) Make the top-level INSTALL documentation easier to understand.
8027 *) Makefiles updated to exit if an error occurs in a sub-directory
8028 make (including if user presses ^C) [Paul Sutton]
8030 *) Make Montgomery context stuff explicit in RSA data structure.
8033 *) Fix build order of pem and err to allow for generated pem.h.
8036 *) Fix renumbering bug in X509_NAME_delete_entry().
8039 *) Enhanced the err-ins.pl script so it makes the error library number
8040 global and can add a library name. This is needed for external ASN1 and
8041 other error libraries.
8044 *) Fixed sk_insert which never worked properly.
8047 *) Fix ASN1 macros so they can handle indefinite length construted
8048 EXPLICIT tags. Some non standard certificates use these: they can now
8052 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8053 into a single doc/ssleay.txt bundle. This way the information is still
8054 preserved but no longer messes up this directory. Now it's new room for
8055 the new set of documenation files.
8056 [Ralf S. Engelschall]
8058 *) SETs were incorrectly DER encoded. This was a major pain, because they
8059 shared code with SEQUENCEs, which aren't coded the same. This means that
8060 almost everything to do with SETs or SEQUENCEs has either changed name or
8061 number of arguments.
8062 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8064 *) Fix test data to work with the above.
8067 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8068 was already fixed by Eric for 0.9.1 it seems.
8069 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8071 *) Autodetect FreeBSD3.
8074 *) Fix various bugs in Configure. This affects the following platforms:
8078 unixware-2.0-pentium
8082 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8083 before they are needed.
8086 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8090 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8092 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8093 changed SSLeay to OpenSSL in version strings.
8094 [Ralf S. Engelschall]
8096 *) Some fixups to the top-level documents.
8099 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8100 because the symlink to include/ was missing.
8101 [Ralf S. Engelschall]
8103 *) Incorporated the popular no-RSA/DSA-only patches
8104 which allow to compile a RSA-free SSLeay.
8105 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8107 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8108 when "ssleay" is still not found.
8109 [Ralf S. Engelschall]
8111 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8112 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8114 *) Updated the README file.
8115 [Ralf S. Engelschall]
8117 *) Added various .cvsignore files in the CVS repository subdirs
8118 to make a "cvs update" really silent.
8119 [Ralf S. Engelschall]
8121 *) Recompiled the error-definition header files and added
8122 missing symbols to the Win32 linker tables.
8123 [Ralf S. Engelschall]
8125 *) Cleaned up the top-level documents;
8126 o new files: CHANGES and LICENSE
8127 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8128 o merged COPYRIGHT into LICENSE
8129 o removed obsolete TODO file
8130 o renamed MICROSOFT to INSTALL.W32
8131 [Ralf S. Engelschall]
8133 *) Removed dummy files from the 0.9.1b source tree:
8134 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8135 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8136 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8137 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8138 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8139 [Ralf S. Engelschall]
8141 *) Added various platform portability fixes.
8144 *) The Genesis of the OpenSSL rpject:
8145 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8146 Young and Tim J. Hudson created while they were working for C2Net until
8148 [The OpenSSL Project]
8151 Changes between 0.9.0b and 0.9.1b [not released]
8153 *) Updated a few CA certificates under certs/
8156 *) Changed some BIGNUM api stuff.
8159 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8160 DGUX x86, Linux Alpha, etc.
8163 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8164 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8168 *) Add -strparse option to asn1pars program which parses nested
8170 [Dr Stephen Henson <shenson@bigfoot.com>]
8172 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8175 *) DSA fix for "ca" program.
8178 *) Added "-genkey" option to "dsaparam" program.
8181 *) Added RIPE MD160 (rmd160) message digest.
8184 *) Added -a (all) option to "ssleay version" command.
8187 *) Added PLATFORM define which is the id given to Configure.
8190 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8193 *) Extended the ASN.1 parser routines.
8196 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8199 *) Added a BN_CTX to the BN library.
8202 *) Fixed the weak key values in DES library
8205 *) Changed API in EVP library for cipher aliases.
8208 *) Added support for RC2/64bit cipher.
8211 *) Converted the lhash library to the crypto/mem.c functions.
8214 *) Added more recognized ASN.1 object ids.
8217 *) Added more RSA padding checks for SSL/TLS.
8220 *) Added BIO proxy/filter functionality.
8223 *) Added extra_certs to SSL_CTX which can be used
8224 send extra CA certificates to the client in the CA cert chain sending
8225 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8228 *) Now Fortezza is denied in the authentication phase because
8229 this is key exchange mechanism is not supported by SSLeay at all.
8232 *) Additional PKCS1 checks.
8235 *) Support the string "TLSv1" for all TLS v1 ciphers.
8238 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8239 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8242 *) Fixed a few memory leaks.
8245 *) Fixed various code and comment typos.
8248 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8249 bytes sent in the client random.
8250 [Edward Bishop <ebishop@spyglass.com>]