5 Changes between 0.9.8j and 0.9.8k [xx XXX xxxx]
7 *) Improve efficiency of mem_gets: don't search whole buffer each time
9 [Jeremy Shapiro <jnshapir@us.ibm.com>]
11 *) New -hex option for openssl rand.
14 *) Print out UTF8String and NumericString when parsing ASN1.
17 *) Support NumericString type for name components.
20 *) Allow CC in the environment to override the automatically chosen
21 compiler. Note that nothing is done to ensure flags work with the
25 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
27 *) Properly check EVP_VerifyFinal() and similar return values
29 [Ben Laurie, Bodo Moeller, Google Security Team]
31 *) Enable TLS extensions by default.
34 *) Allow the CHIL engine to be loaded, whether the application is
35 multithreaded or not. (This does not release the developer from the
36 obligation to set up the dynamic locking callbacks.)
37 [Sander Temme <sander@temme.net>]
39 *) Use correct exit code if there is an error in dgst command.
40 [Steve Henson; problem pointed out by Roland Dirlewanger]
42 *) Tweak Configure so that you need to say "experimental-jpake" to enable
43 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
46 *) Add experimental JPAKE support, including demo authentication in
47 s_client and s_server.
50 *) Set the comparison function in v3_addr_canonize().
51 [Rob Austein <sra@hactrn.net>]
53 *) Add support for XMPP STARTTLS in s_client.
54 [Philip Paeps <philip@freebsd.org>]
56 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
57 to ensure that even with this option, only ciphersuites in the
58 server's preference list will be accepted. (Note that the option
59 applies only when resuming a session, so the earlier behavior was
60 just about the algorithm choice for symmetric cryptography.)
63 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
65 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
66 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
69 *) The fix in 0.9.8c that supposedly got rid of unsafe
70 double-checked locking was incomplete for RSA blinding,
71 addressing just one layer of what turns out to have been
72 doubly unsafe triple-checked locking.
74 So now fix this for real by retiring the MONT_HELPER macro
75 in crypto/rsa/rsa_eay.c.
77 [Bodo Moeller; problem pointed out by Marius Schilder]
79 *) Various precautionary measures:
81 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
83 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
84 (NB: This would require knowledge of the secret session ticket key
85 to exploit, in which case you'd be SOL either way.)
87 - Change bn_nist.c so that it will properly handle input BIGNUMs
88 outside the expected range.
90 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
93 [Neel Mehta, Bodo Moeller]
95 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
96 the load fails. Useful for distros.
97 [Ben Laurie and the FreeBSD team]
99 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
102 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
105 *) Expand ENGINE to support engine supplied SSL client certificate functions.
107 This work was sponsored by Logica.
110 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
111 keystores. Support for SSL/TLS client authentication too.
112 Not compiled unless enable-capieng specified to Configure.
114 This work was sponsored by Logica.
117 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
118 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
119 attribute creation routines such as certifcate requests and PKCS#12
123 Changes between 0.9.8g and 0.9.8h [28 May 2008]
125 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
126 handshake which could lead to a cilent crash as found using the
127 Codenomicon TLS test suite (CVE-2008-1672)
128 [Steve Henson, Mark Cox]
130 *) Fix double free in TLS server name extensions which could lead to
131 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
134 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
136 Clear the error queue to ensure that error entries left from
137 older function calls do not interfere with the correct operation.
138 [Lutz Jaenicke, Erik de Castro Lopo]
140 *) Remove root CA certificates of commercial CAs:
142 The OpenSSL project does not recommend any specific CA and does not
143 have any policy with respect to including or excluding any CA.
144 Therefore it does not make any sense to ship an arbitrary selection
145 of root CA certificates with the OpenSSL software.
148 *) RSA OAEP patches to fix two separate invalid memory reads.
149 The first one involves inputs when 'lzero' is greater than
150 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
151 before the beginning of from). The second one involves inputs where
152 the 'db' section contains nothing but zeroes (there is a one-byte
153 invalid read after the end of 'db').
154 [Ivan Nestlerode <inestlerode@us.ibm.com>]
156 *) Partial backport from 0.9.9-dev:
158 Introduce bn_mul_mont (dedicated Montgomery multiplication
159 procedure) as a candidate for BIGNUM assembler implementation.
160 While 0.9.9-dev uses assembler for various architectures, only
161 x86_64 is available by default here in the 0.9.8 branch, and
162 32-bit x86 is available through a compile-time setting.
164 To try the 32-bit x86 assembler implementation, use Configure
165 option "enable-montasm" (which exists only for this backport).
167 As "enable-montasm" for 32-bit x86 disclaims code stability
168 anyway, in this constellation we activate additional code
169 backported from 0.9.9-dev for further performance improvements,
170 namely BN_from_montgomery_word. (To enable this otherwise,
171 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
173 [Andy Polyakov (backport partially by Bodo Moeller)]
175 *) Add TLS session ticket callback. This allows an application to set
176 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
177 values. This is useful for key rollover for example where several key
178 sets may exist with different names.
181 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
182 This was broken until now in 0.9.8 releases, such that the only way
183 a registered ENGINE could be used (assuming it initialises
184 successfully on the host) was to explicitly set it as the default
185 for the relevant algorithms. This is in contradiction with 0.9.7
186 behaviour and the documentation. With this fix, when an ENGINE is
187 registered into a given algorithm's table of implementations, the
188 'uptodate' flag is reset so that auto-discovery will be used next
189 time a new context for that algorithm attempts to select an
191 [Ian Lister (tweaked by Geoff Thorpe)]
193 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
194 implemention in the following ways:
196 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
199 Lack of BER streaming support means one pass streaming processing is
200 only supported if data is detached: setting the streaming flag is
201 ignored for embedded content.
203 CMS support is disabled by default and must be explicitly enabled
204 with the enable-cms configuration option.
207 *) Update the GMP engine glue to do direct copies between BIGNUM and
208 mpz_t when openssl and GMP use the same limb size. Otherwise the
209 existing "conversion via a text string export" trick is still used.
210 [Paul Sheer <paulsheer@gmail.com>]
212 *) Zlib compression BIO. This is a filter BIO which compressed and
213 uncompresses any data passed through it.
216 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
217 RFC3394 compatible AES key wrapping.
220 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
221 sets string data without copying. X509_ALGOR_set0() and
222 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
223 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
224 from an X509_ATTRIBUTE structure optionally checking it occurs only
225 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
229 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
230 to get the expected BN_FLG_CONSTTIME behavior.
231 [Bodo Moeller (Google)]
235 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
236 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
237 - added some more tests to do_tests.pl
238 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
239 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
240 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
241 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
242 - various changes to netware.pl to enable gcc-cross builds on Win32
244 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
245 - various changes to fix missing prototype warnings
246 - fixed x86nasm.pl to create correct asm files for NASM COFF output
247 - added AES, WHIRLPOOL and CPUID assembler code to build files
248 - added missing AES assembler make rules to mk1mf.pl
249 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
250 [Guenter Knauf <eflash@gmx.net>]
252 *) Implement certificate status request TLS extension defined in RFC3546.
253 A client can set the appropriate parameters and receive the encoded
254 OCSP response via a callback. A server can query the supplied parameters
255 and set the encoded OCSP response in the callback. Add simplified examples
256 to s_client and s_server.
259 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
262 + Binary incompatibility of ssl_ctx_st structure
263 + DTLS interoperation with non-compliant servers
264 + Don't call get_session_cb() without proposed session
265 + Fix ia64 assembler code
266 [Andy Polyakov, Steve Henson]
268 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
270 *) DTLS Handshake overhaul. There were longstanding issues with
271 OpenSSL DTLS implementation, which were making it impossible for
272 RFC 4347 compliant client to communicate with OpenSSL server.
273 Unfortunately just fixing these incompatibilities would "cut off"
274 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
275 server keeps tolerating non RFC compliant syntax. The opposite is
276 not true, 0.9.8f client can not communicate with earlier server.
277 This update even addresses CVE-2007-4995.
280 *) Changes to avoid need for function casts in OpenSSL: some compilers
281 (gcc 4.2 and later) reject their use.
282 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
285 *) Add RFC4507 support to OpenSSL. This includes the corrections in
286 RFC4507bis. The encrypted ticket format is an encrypted encoded
287 SSL_SESSION structure, that way new session features are automatically
290 If a client application caches session in an SSL_SESSION structure
291 support is transparent because tickets are now stored in the encoded
294 The SSL_CTX structure automatically generates keys for ticket
295 protection in servers so again support should be possible
296 with no application modification.
298 If a client or server wishes to disable RFC4507 support then the option
299 SSL_OP_NO_TICKET can be set.
301 Add a TLS extension debugging callback to allow the contents of any client
302 or server extensions to be examined.
304 This work was sponsored by Google.
307 *) Add initial support for TLS extensions, specifically for the server_name
308 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
309 have new members for a host name. The SSL data structure has an
310 additional member SSL_CTX *initial_ctx so that new sessions can be
311 stored in that context to allow for session resumption, even after the
312 SSL has been switched to a new SSL_CTX in reaction to a client's
313 server_name extension.
315 New functions (subject to change):
318 SSL_get_servername_type()
321 New CTRL codes and macros (subject to change):
323 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
324 - SSL_CTX_set_tlsext_servername_callback()
325 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
326 - SSL_CTX_set_tlsext_servername_arg()
327 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
329 openssl s_client has a new '-servername ...' option.
331 openssl s_server has new options '-servername_host ...', '-cert2 ...',
332 '-key2 ...', '-servername_fatal' (subject to change). This allows
333 testing the HostName extension for a specific single host name ('-cert'
334 and '-key' remain fallbacks for handshakes without HostName
335 negotiation). If the unrecogninzed_name alert has to be sent, this by
336 default is a warning; it becomes fatal with the '-servername_fatal'
339 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
341 *) Add AES and SSE2 assembly language support to VC++ build.
344 *) Mitigate attack on final subtraction in Montgomery reduction.
347 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
348 (which previously caused an internal error).
351 *) Squeeze another 10% out of IGE mode when in != out.
354 *) AES IGE mode speedup.
355 [Dean Gaudet (Google)]
357 *) Add the Korean symmetric 128-bit cipher SEED (see
358 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
359 add SEED ciphersuites from RFC 4162:
361 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
362 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
363 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
364 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
366 To minimize changes between patchlevels in the OpenSSL 0.9.8
367 series, SEED remains excluded from compilation unless OpenSSL
368 is configured with 'enable-seed'.
371 *) Mitigate branch prediction attacks, which can be practical if a
372 single processor is shared, allowing a spy process to extract
373 information. For detailed background information, see
374 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
375 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
376 and Necessary Software Countermeasures"). The core of the change
377 are new versions BN_div_no_branch() and
378 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
379 respectively, which are slower, but avoid the security-relevant
380 conditional branches. These are automatically called by BN_div()
381 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
382 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
383 remove a conditional branch.
385 BN_FLG_CONSTTIME is the new name for the previous
386 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
387 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
388 in the exponent causes BN_mod_exp_mont() to use the alternative
389 implementation in BN_mod_exp_mont_consttime().) The old name
390 remains as a deprecated alias.
392 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
393 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
394 constant-time implementations for more than just exponentiation.
395 Here too the old name is kept as a deprecated alias.
397 BN_BLINDING_new() will now use BN_dup() for the modulus so that
398 the BN_BLINDING structure gets an independent copy of the
399 modulus. This means that the previous "BIGNUM *m" argument to
400 BN_BLINDING_new() and to BN_BLINDING_create_param() now
401 essentially becomes "const BIGNUM *m", although we can't actually
402 change this in the header file before 0.9.9. It allows
403 RSA_setup_blinding() to use BN_with_flags() on the modulus to
404 enable BN_FLG_CONSTTIME.
406 [Matthew D Wood (Intel Corp)]
408 *) In the SSL/TLS server implementation, be strict about session ID
409 context matching (which matters if an application uses a single
410 external cache for different purposes). Previously,
411 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
412 set. This did ensure strict client verification, but meant that,
413 with applications using a single external cache for quite
414 different requirements, clients could circumvent ciphersuite
415 restrictions for a given session ID context by starting a session
416 in a different context.
419 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
420 a ciphersuite string such as "DEFAULT:RSA" cannot enable
421 authentication-only ciphersuites.
424 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
425 not complete and could lead to a possible single byte overflow
426 (CVE-2007-5135) [Ben Laurie]
428 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
430 *) Since AES128 and AES256 (and similarly Camellia128 and
431 Camellia256) share a single mask bit in the logic of
432 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
433 kludge to work properly if AES128 is available and AES256 isn't
434 (or if Camellia128 is available and Camellia256 isn't).
437 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
438 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
439 When a point or a seed is encoded in a BIT STRING, we need to
440 prevent the removal of trailing zero bits to get the proper DER
441 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
442 of a NamedBitList, for which trailing 0 bits need to be removed.)
445 *) Have SSL/TLS server implementation tolerate "mismatched" record
446 protocol version while receiving ClientHello even if the
447 ClientHello is fragmented. (The server can't insist on the
448 particular protocol version it has chosen before the ServerHello
449 message has informed the client about his choice.)
452 *) Add RFC 3779 support.
453 [Rob Austein for ARIN, Ben Laurie]
455 *) Load error codes if they are not already present instead of using a
456 static variable. This allows them to be cleanly unloaded and reloaded.
457 Improve header file function name parsing.
460 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
461 or CAPABILITY handshake as required by RFCs.
464 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
466 *) Introduce limits to prevent malicious keys being able to
467 cause a denial of service. (CVE-2006-2940)
468 [Steve Henson, Bodo Moeller]
470 *) Fix ASN.1 parsing of certain invalid structures that can result
471 in a denial of service. (CVE-2006-2937) [Steve Henson]
473 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
474 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
476 *) Fix SSL client code which could crash if connecting to a
477 malicious SSLv2 server. (CVE-2006-4343)
478 [Tavis Ormandy and Will Drewry, Google Security Team]
480 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
481 match only those. Before that, "AES256-SHA" would be interpreted
482 as a pattern and match "AES128-SHA" too (since AES128-SHA got
483 the same strength classification in 0.9.7h) as we currently only
484 have a single AES bit in the ciphersuite description bitmap.
485 That change, however, also applied to ciphersuite strings such as
486 "RC4-MD5" that intentionally matched multiple ciphersuites --
487 namely, SSL 2.0 ciphersuites in addition to the more common ones
488 from SSL 3.0/TLS 1.0.
490 So we change the selection algorithm again: Naming an explicit
491 ciphersuite selects this one ciphersuite, and any other similar
492 ciphersuite (same bitmap) from *other* protocol versions.
493 Thus, "RC4-MD5" again will properly select both the SSL 2.0
494 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
496 Since SSL 2.0 does not have any ciphersuites for which the
497 128/256 bit distinction would be relevant, this works for now.
498 The proper fix will be to use different bits for AES128 and
499 AES256, which would have avoided the problems from the beginning;
500 however, bits are scarce, so we can only do this in a new release
501 (not just a patchlevel) when we can change the SSL_CIPHER
502 definition to split the single 'unsigned long mask' bitmap into
503 multiple values to extend the available space.
507 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
509 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
510 (CVE-2006-4339) [Ben Laurie and Google Security Team]
512 *) Add AES IGE and biIGE modes.
515 *) Change the Unix randomness entropy gathering to use poll() when
516 possible instead of select(), since the latter has some
517 undesirable limitations.
518 [Darryl Miles via Richard Levitte and Bodo Moeller]
520 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
521 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
522 cannot be implicitly activated as part of, e.g., the "AES" alias.
523 However, please upgrade to OpenSSL 0.9.9[-dev] for
524 non-experimental use of the ECC ciphersuites to get TLS extension
525 support, which is required for curve and point format negotiation
526 to avoid potential handshake problems.
529 *) Disable rogue ciphersuites:
531 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
532 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
533 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
535 The latter two were purportedly from
536 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
539 Also deactivate the remaining ciphersuites from
540 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
541 unofficial, and the ID has long expired.
544 *) Fix RSA blinding Heisenbug (problems sometimes occured on
545 dual-core machines) and other potential thread-safety issues.
548 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
549 versions), which is now available for royalty-free use
550 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
551 Also, add Camellia TLS ciphersuites from RFC 4132.
553 To minimize changes between patchlevels in the OpenSSL 0.9.8
554 series, Camellia remains excluded from compilation unless OpenSSL
555 is configured with 'enable-camellia'.
558 *) Disable the padding bug check when compression is in use. The padding
559 bug check assumes the first packet is of even length, this is not
560 necessarily true if compresssion is enabled and can result in false
561 positives causing handshake failure. The actual bug test is ancient
562 code so it is hoped that implementations will either have fixed it by
563 now or any which still have the bug do not support compression.
566 Changes between 0.9.8a and 0.9.8b [04 May 2006]
568 *) When applying a cipher rule check to see if string match is an explicit
569 cipher suite and only match that one cipher suite if it is.
572 *) Link in manifests for VC++ if needed.
573 [Austin Ziegler <halostatue@gmail.com>]
575 *) Update support for ECC-based TLS ciphersuites according to
576 draft-ietf-tls-ecc-12.txt with proposed changes (but without
577 TLS extensions, which are supported starting with the 0.9.9
578 branch, not in the OpenSSL 0.9.8 branch).
581 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
582 opaque EVP_CIPHER_CTX handling.
585 *) Fixes and enhancements to zlib compression code. We now only use
586 "zlib1.dll" and use the default __cdecl calling convention on Win32
587 to conform with the standards mentioned here:
588 http://www.zlib.net/DLL_FAQ.txt
589 Static zlib linking now works on Windows and the new --with-zlib-include
590 --with-zlib-lib options to Configure can be used to supply the location
591 of the headers and library. Gracefully handle case where zlib library
595 *) Several fixes and enhancements to the OID generation code. The old code
596 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
597 handle numbers larger than ULONG_MAX, truncated printing and had a
598 non standard OBJ_obj2txt() behaviour.
601 *) Add support for building of engines under engine/ as shared libraries
602 under VC++ build system.
605 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
606 Hopefully, we will not see any false combination of paths any more.
609 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
611 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
612 (part of SSL_OP_ALL). This option used to disable the
613 countermeasure against man-in-the-middle protocol-version
614 rollback in the SSL 2.0 server implementation, which is a bad
615 idea. (CVE-2005-2969)
617 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
618 for Information Security, National Institute of Advanced Industrial
619 Science and Technology [AIST], Japan)]
621 *) Add two function to clear and return the verify parameter flags.
624 *) Keep cipherlists sorted in the source instead of sorting them at
625 runtime, thus removing the need for a lock.
628 *) Avoid some small subgroup attacks in Diffie-Hellman.
629 [Nick Mathewson and Ben Laurie]
631 *) Add functions for well-known primes.
634 *) Extended Windows CE support.
635 [Satoshi Nakamura and Andy Polyakov]
637 *) Initialize SSL_METHOD structures at compile time instead of during
638 runtime, thus removing the need for a lock.
641 *) Make PKCS7_decrypt() work even if no certificate is supplied by
642 attempting to decrypt each encrypted key in turn. Add support to
646 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
648 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
651 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
654 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
655 key into the same file any more.
658 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
661 *) Add -utf8 command line and config file option to 'ca'.
662 [Stefan <stf@udoma.org]
664 *) Removed the macro des_crypt(), as it seems to conflict with some
665 libraries. Use DES_crypt().
668 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
669 involves renaming the source and generated shared-libs for
670 both. The engines will accept the corrected or legacy ids
671 ('ncipher' and '4758_cca' respectively) when binding. NB,
672 this only applies when building 'shared'.
673 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
675 *) Add attribute functions to EVP_PKEY structure. Modify
676 PKCS12_create() to recognize a CSP name attribute and
677 use it. Make -CSP option work again in pkcs12 utility.
680 *) Add new functionality to the bn blinding code:
681 - automatic re-creation of the BN_BLINDING parameters after
682 a fixed number of uses (currently 32)
683 - add new function for parameter creation
684 - introduce flags to control the update behaviour of the
685 BN_BLINDING parameters
686 - hide BN_BLINDING structure
687 Add a second BN_BLINDING slot to the RSA structure to improve
688 performance when a single RSA object is shared among several
692 *) Add support for DTLS.
693 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
695 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
696 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
699 *) Remove buggy and incompletet DH cert support from
700 ssl/ssl_rsa.c and ssl/s3_both.c
703 *) Use SHA-1 instead of MD5 as the default digest algorithm for
704 the apps/openssl applications.
707 *) Compile clean with "-Wall -Wmissing-prototypes
708 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
709 DEBUG_SAFESTACK must also be set.
712 *) Change ./Configure so that certain algorithms can be disabled by default.
713 The new counterpiece to "no-xxx" is "enable-xxx".
715 The patented RC5 and MDC2 algorithms will now be disabled unless
716 "enable-rc5" and "enable-mdc2", respectively, are specified.
718 (IDEA remains enabled despite being patented. This is because IDEA
719 is frequently required for interoperability, and there is no license
720 fee for non-commercial use. As before, "no-idea" can be used to
721 avoid this algorithm.)
725 *) Add processing of proxy certificates (see RFC 3820). This work was
726 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
727 EGEE (Enabling Grids for E-science in Europe).
730 *) RC4 performance overhaul on modern architectures/implementations, such
731 as Intel P4, IA-64 and AMD64.
734 *) New utility extract-section.pl. This can be used specify an alternative
735 section number in a pod file instead of having to treat each file as
736 a separate case in Makefile. This can be done by adding two lines to the
739 =for comment openssl_section:XXX
741 The blank line is mandatory.
745 *) New arguments -certform, -keyform and -pass for s_client and s_server
746 to allow alternative format key and certificate files and passphrase
750 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
751 update associated structures and add various utility functions.
753 Add new policy related verify parameters, include policy checking in
754 standard verify code. Enhance 'smime' application with extra parameters
755 to support policy checking and print out.
758 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
759 Nehemiah processors. These extensions support AES encryption in hardware
760 as well as RNG (though RNG support is currently disabled).
761 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
763 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
766 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
767 [Andy Polyakov and a number of other people]
769 *) Improved PowerPC platform support. Most notably BIGNUM assembler
770 implementation contributed by IBM.
771 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
773 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
774 exponent rather than 'unsigned long'. There is a corresponding change to
775 the new 'rsa_keygen' element of the RSA_METHOD structure.
776 [Jelte Jansen, Geoff Thorpe]
778 *) Functionality for creating the initial serial number file is now
779 moved from CA.pl to the 'ca' utility with a new option -create_serial.
781 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
782 number file to 1, which is bound to cause problems. To avoid
783 the problems while respecting compatibility between different 0.9.7
784 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
785 CA.pl for serial number initialization. With the new release 0.9.8,
786 we can fix the problem directly in the 'ca' utility.)
789 *) Reduced header interdepencies by declaring more opaque objects in
790 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
791 give fewer recursive includes, which could break lazy source code - so
792 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
793 developers should define this symbol when building and using openssl to
794 ensure they track the recommended behaviour, interfaces, [etc], but
795 backwards-compatible behaviour prevails when this isn't defined.
798 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
801 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
802 This will generate a random key of the appropriate length based on the
803 cipher context. The EVP_CIPHER can provide its own random key generation
804 routine to support keys of a specific form. This is used in the des and
805 3des routines to generate a key of the correct parity. Update S/MIME
806 code to use new functions and hence generate correct parity DES keys.
807 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
808 valid (weak or incorrect parity).
811 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
812 as looking them up. This is useful when the verified structure may contain
813 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
814 present unless the new PKCS7_NO_CRL flag is asserted.
817 *) Extend ASN1 oid configuration module. It now additionally accepts the
820 shortName = some long name, 1.2.3.4
823 *) Reimplemented the BN_CTX implementation. There is now no more static
824 limitation on the number of variables it can handle nor the depth of the
825 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
826 information can now expand as required, and rather than having a single
827 static array of bignums, BN_CTX now uses a linked-list of such arrays
828 allowing it to expand on demand whilst maintaining the usefulness of
832 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
833 to allow all RSA operations to function using a single BN_CTX.
836 *) Preliminary support for certificate policy evaluation and checking. This
837 is initially intended to pass the tests outlined in "Conformance Testing
838 of Relying Party Client Certificate Path Processing Logic" v1.07.
841 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
842 remained unused and not that useful. A variety of other little bignum
843 tweaks and fixes have also been made continuing on from the audit (see
847 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
848 associated ASN1, EVP and SSL functions and old ASN1 macros.
851 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
852 and this should never fail. So the return value from the use of
853 BN_set_word() (which can fail due to needless expansion) is now deprecated;
854 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
857 *) BN_CTX_get() should return zero-valued bignums, providing the same
858 initialised value as BN_new().
859 [Geoff Thorpe, suggested by Ulf Möller]
861 *) Support for inhibitAnyPolicy certificate extension.
864 *) An audit of the BIGNUM code is underway, for which debugging code is
865 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
866 is considered valid when processing BIGNUMs, and causes execution to
867 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
868 further steps are taken to deliberately pollute unused data in BIGNUM
869 structures to try and expose faulty code further on. For now, openssl will
870 (in its default mode of operation) continue to tolerate the inconsistent
871 forms that it has tolerated in the past, but authors and packagers should
872 consider trying openssl and their own applications when compiled with
873 these debugging symbols defined. It will help highlight potential bugs in
874 their own code, and will improve the test coverage for OpenSSL itself. At
875 some point, these tighter rules will become openssl's default to improve
876 maintainability, though the assert()s and other overheads will remain only
877 in debugging configurations. See bn.h for more details.
878 [Geoff Thorpe, Nils Larsch, Ulf Möller]
880 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
881 that can only be obtained through BN_CTX_new() (which implicitly
882 initialises it). The presence of this function only made it possible
883 to overwrite an existing structure (and cause memory leaks).
886 *) Because of the callback-based approach for implementing LHASH as a
887 template type, lh_insert() adds opaque objects to hash-tables and
888 lh_doall() or lh_doall_arg() are typically used with a destructor callback
889 to clean up those corresponding objects before destroying the hash table
890 (and losing the object pointers). So some over-zealous constifications in
891 LHASH have been relaxed so that lh_insert() does not take (nor store) the
892 objects as "const" and the lh_doall[_arg] callback wrappers are not
893 prototyped to have "const" restrictions on the object pointers they are
894 given (and so aren't required to cast them away any more).
897 *) The tmdiff.h API was so ugly and minimal that our own timing utility
898 (speed) prefers to use its own implementation. The two implementations
899 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
900 its object type properly exposed (MS_TM) instead of casting to/from "char
901 *". This may still change yet if someone realises MS_TM and "ms_time_***"
902 aren't necessarily the greatest nomenclatures - but this is what was used
903 internally to the implementation so I've used that for now.
906 *) Ensure that deprecated functions do not get compiled when
907 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
908 the self-tests were still using deprecated key-generation functions so
909 these have been updated also.
912 *) Reorganise PKCS#7 code to separate the digest location functionality
913 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
914 New function PKCS7_set_digest() to set the digest type for PKCS#7
915 digestedData type. Add additional code to correctly generate the
916 digestedData type and add support for this type in PKCS7 initialization
920 *) New function PKCS7_set0_type_other() this initializes a PKCS7
921 structure of type "other".
924 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
925 sure the loop does correctly stop and breaking ("division by zero")
926 modulus operations are not performed. The (pre-generated) prime
927 table crypto/bn/bn_prime.h was already correct, but it could not be
928 re-generated on some platforms because of the "division by zero"
929 situation in the script.
930 [Ralf S. Engelschall]
932 *) Update support for ECC-based TLS ciphersuites according to
933 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
934 SHA-1 now is only used for "small" curves (where the
935 representation of a field element takes up to 24 bytes); for
936 larger curves, the field element resulting from ECDH is directly
937 used as premaster secret.
938 [Douglas Stebila (Sun Microsystems Laboratories)]
940 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
941 curve secp160r1 to the tests.
942 [Douglas Stebila (Sun Microsystems Laboratories)]
944 *) Add the possibility to load symbols globally with DSO.
945 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
947 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
948 control of the error stack.
951 *) Add support for STORE in ENGINE.
954 *) Add the STORE type. The intention is to provide a common interface
955 to certificate and key stores, be they simple file-based stores, or
956 HSM-type store, or LDAP stores, or...
957 NOTE: The code is currently UNTESTED and isn't really used anywhere.
960 *) Add a generic structure called OPENSSL_ITEM. This can be used to
961 pass a list of arguments to any function as well as provide a way
962 for a function to pass data back to the caller.
965 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
966 works like BUF_strdup() but can be used to duplicate a portion of
967 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
971 *) Add the function sk_find_ex() which works like sk_find(), but will
972 return an index to an element even if an exact match couldn't be
973 found. The index is guaranteed to point at the element where the
974 searched-for key would be inserted to preserve sorting order.
977 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
978 takes an extra flags argument for optional functionality. Currently,
979 the following flags are defined:
981 OBJ_BSEARCH_VALUE_ON_NOMATCH
982 This one gets OBJ_bsearch_ex() to return a pointer to the first
983 element where the comparing function returns a negative or zero
986 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
987 This one gets OBJ_bsearch_ex() to return a pointer to the first
988 element where the comparing function returns zero. This is useful
989 if there are more than one element where the comparing function
993 *) Make it possible to create self-signed certificates with 'openssl ca'
994 in such a way that the self-signed certificate becomes part of the
995 CA database and uses the same mechanisms for serial number generation
996 as all other certificate signing. The new flag '-selfsign' enables
997 this functionality. Adapt CA.sh and CA.pl.in.
1000 *) Add functionality to check the public key of a certificate request
1001 against a given private. This is useful to check that a certificate
1002 request can be signed by that key (self-signing).
1005 *) Make it possible to have multiple active certificates with the same
1006 subject in the CA index file. This is done only if the keyword
1007 'unique_subject' is set to 'no' in the main CA section (default
1008 if 'CA_default') of the configuration file. The value is saved
1009 with the database itself in a separate index attribute file,
1010 named like the index file with '.attr' appended to the name.
1013 *) Generate muti valued AVAs using '+' notation in config files for
1017 *) Support for nameConstraints certificate extension.
1020 *) Support for policyConstraints certificate extension.
1023 *) Support for policyMappings certificate extension.
1026 *) Make sure the default DSA_METHOD implementation only uses its
1027 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1028 and change its own handlers to be NULL so as to remove unnecessary
1029 indirection. This lets alternative implementations fallback to the
1030 default implementation more easily.
1033 *) Support for directoryName in GeneralName related extensions
1037 *) Make it possible to link applications using Makefile.shared.
1038 Make that possible even when linking against static libraries!
1041 *) Support for single pass processing for S/MIME signing. This now
1042 means that S/MIME signing can be done from a pipe, in addition
1043 cleartext signing (multipart/signed type) is effectively streaming
1044 and the signed data does not need to be all held in memory.
1046 This is done with a new flag PKCS7_STREAM. When this flag is set
1047 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1048 is done after the data is output (and digests calculated) in
1049 SMIME_write_PKCS7().
1052 *) Add full support for -rpath/-R, both in shared libraries and
1053 applications, at least on the platforms where it's known how
1057 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1058 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1059 will now compute a table of multiples of the generator that
1060 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1061 faster (notably in the case of a single point multiplication,
1062 scalar * generator).
1063 [Nils Larsch, Bodo Moeller]
1065 *) IPv6 support for certificate extensions. The various extensions
1066 which use the IP:a.b.c.d can now take IPv6 addresses using the
1067 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1071 *) Added an ENGINE that implements RSA by performing private key
1072 exponentiations with the GMP library. The conversions to and from
1073 GMP's mpz_t format aren't optimised nor are any montgomery forms
1074 cached, and on x86 it appears OpenSSL's own performance has caught up.
1075 However there are likely to be other architectures where GMP could
1076 provide a boost. This ENGINE is not built in by default, but it can be
1077 specified at Configure time and should be accompanied by the necessary
1078 linker additions, eg;
1079 ./config -DOPENSSL_USE_GMP -lgmp
1082 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1083 testing availability of engines with "-t" - the old behaviour is
1084 produced by increasing the feature's verbosity with "-tt".
1087 *) ECDSA routines: under certain error conditions uninitialized BN objects
1088 could be freed. Solution: make sure initialization is performed early
1089 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1093 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1094 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1095 software implementations. For DSA and DH, parameter generation can
1096 also be overriden by providing the appropriate method callbacks.
1099 *) Change the "progress" mechanism used in key-generation and
1100 primality testing to functions that take a new BN_GENCB pointer in
1101 place of callback/argument pairs. The new API functions have "_ex"
1102 postfixes and the older functions are reimplemented as wrappers for
1103 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1104 declarations of the old functions to help (graceful) attempts to
1105 migrate to the new functions. Also, the new key-generation API
1106 functions operate on a caller-supplied key-structure and return
1107 success/failure rather than returning a key or NULL - this is to
1108 help make "keygen" another member function of RSA_METHOD etc.
1110 Example for using the new callback interface:
1112 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1116 BN_GENCB_set(&my_cb, my_callback, my_arg);
1118 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1119 /* For the meaning of a, b in calls to my_callback(), see the
1120 * documentation of the function that calls the callback.
1121 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1122 * my_callback should return 1 if it wants BN_is_prime_ex()
1123 * to continue, or 0 to stop.
1128 *) Change the ZLIB compression method to be stateful, and make it
1129 available to TLS with the number defined in
1130 draft-ietf-tls-compression-04.txt.
1133 *) Add the ASN.1 structures and functions for CertificatePair, which
1134 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1136 CertificatePair ::= SEQUENCE {
1137 forward [0] Certificate OPTIONAL,
1138 reverse [1] Certificate OPTIONAL,
1139 -- at least one of the pair shall be present -- }
1141 Also implement the PEM functions to read and write certificate
1142 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1144 This needed to be defined, mostly for the sake of the LDAP
1145 attribute crossCertificatePair, but may prove useful elsewhere as
1149 *) Make it possible to inhibit symlinking of shared libraries in
1150 Makefile.shared, for Cygwin's sake.
1153 *) Extend the BIGNUM API by creating a function
1154 void BN_set_negative(BIGNUM *a, int neg);
1155 and a macro that behave like
1156 int BN_is_negative(const BIGNUM *a);
1158 to avoid the need to access 'a->neg' directly in applications.
1161 *) Implement fast modular reduction for pseudo-Mersenne primes
1162 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1163 EC_GROUP_new_curve_GFp() will now automatically use this
1165 [Nils Larsch <nla@trustcenter.de>]
1167 *) Add new lock type (CRYPTO_LOCK_BN).
1170 *) Change the ENGINE framework to automatically load engines
1171 dynamically from specific directories unless they could be
1172 found to already be built in or loaded. Move all the
1173 current engines except for the cryptodev one to a new
1175 The engines in engines/ are built as shared libraries if
1176 the "shared" options was given to ./Configure or ./config.
1177 Otherwise, they are inserted in libcrypto.a.
1178 /usr/local/ssl/engines is the default directory for dynamic
1179 engines, but that can be overriden at configure time through
1180 the usual use of --prefix and/or --openssldir, and at run
1181 time with the environment variable OPENSSL_ENGINES.
1182 [Geoff Thorpe and Richard Levitte]
1184 *) Add Makefile.shared, a helper makefile to build shared
1185 libraries. Addapt Makefile.org.
1188 *) Add version info to Win32 DLLs.
1189 [Peter 'Luna' Runestig" <peter@runestig.com>]
1191 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1192 can be added using this API to created arbitrary PKCS#12
1193 files while avoiding the low level API.
1195 New options to PKCS12_create(), key or cert can be NULL and
1196 will then be omitted from the output file. The encryption
1197 algorithm NIDs can be set to -1 for no encryption, the mac
1198 iteration count can be set to 0 to omit the mac.
1200 Enhance pkcs12 utility by making the -nokeys and -nocerts
1201 options work when creating a PKCS#12 file. New option -nomac
1202 to omit the mac, NONE can be set for an encryption algorithm.
1203 New code is modified to use the enhanced PKCS12_create()
1204 instead of the low level API.
1207 *) Extend ASN1 encoder to support indefinite length constructed
1208 encoding. This can output sequences tags and octet strings in
1209 this form. Modify pk7_asn1.c to support indefinite length
1210 encoding. This is experimental and needs additional code to
1211 be useful, such as an ASN1 bio and some enhanced streaming
1214 Extend template encode functionality so that tagging is passed
1215 down to the template encoder.
1218 *) Let 'openssl req' fail if an argument to '-newkey' is not
1219 recognized instead of using RSA as a default.
1222 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1223 As these are not official, they are not included in "ALL";
1224 the "ECCdraft" ciphersuite group alias can be used to select them.
1225 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1227 *) Add ECDH engine support.
1228 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1230 *) Add ECDH in new directory crypto/ecdh/.
1231 [Douglas Stebila (Sun Microsystems Laboratories)]
1233 *) Let BN_rand_range() abort with an error after 100 iterations
1234 without success (which indicates a broken PRNG).
1237 *) Change BN_mod_sqrt() so that it verifies that the input value
1238 is really the square of the return value. (Previously,
1239 BN_mod_sqrt would show GIGO behaviour.)
1242 *) Add named elliptic curves over binary fields from X9.62, SECG,
1243 and WAP/WTLS; add OIDs that were still missing.
1245 [Sheueling Chang Shantz and Douglas Stebila
1246 (Sun Microsystems Laboratories)]
1248 *) Extend the EC library for elliptic curves over binary fields
1249 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1252 EC_GF2m_simple_method
1256 EC_GROUP_new_curve_GF2m
1257 EC_GROUP_set_curve_GF2m
1258 EC_GROUP_get_curve_GF2m
1259 EC_POINT_set_affine_coordinates_GF2m
1260 EC_POINT_get_affine_coordinates_GF2m
1261 EC_POINT_set_compressed_coordinates_GF2m
1263 Point compression for binary fields is disabled by default for
1264 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1267 As binary polynomials are represented as BIGNUMs, various members
1268 of the EC_GROUP and EC_POINT data structures can be shared
1269 between the implementations for prime fields and binary fields;
1270 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1271 are essentially identical to their ..._GFp counterparts.
1272 (For simplicity, the '..._GFp' prefix has been dropped from
1273 various internal method names.)
1275 An internal 'field_div' method (similar to 'field_mul' and
1276 'field_sqr') has been added; this is used only for binary fields.
1278 [Sheueling Chang Shantz and Douglas Stebila
1279 (Sun Microsystems Laboratories)]
1281 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1282 through methods ('mul', 'precompute_mult').
1284 The generic implementations (now internally called 'ec_wNAF_mul'
1285 and 'ec_wNAF_precomputed_mult') remain the default if these
1286 methods are undefined.
1288 [Sheueling Chang Shantz and Douglas Stebila
1289 (Sun Microsystems Laboratories)]
1291 *) New function EC_GROUP_get_degree, which is defined through
1292 EC_METHOD. For curves over prime fields, this returns the bit
1293 length of the modulus.
1295 [Sheueling Chang Shantz and Douglas Stebila
1296 (Sun Microsystems Laboratories)]
1298 *) New functions EC_GROUP_dup, EC_POINT_dup.
1299 (These simply call ..._new and ..._copy).
1301 [Sheueling Chang Shantz and Douglas Stebila
1302 (Sun Microsystems Laboratories)]
1304 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1305 Polynomials are represented as BIGNUMs (where the sign bit is not
1306 used) in the following functions [macros]:
1309 BN_GF2m_sub [= BN_GF2m_add]
1310 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1311 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1312 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1314 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1315 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1316 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1317 BN_GF2m_cmp [= BN_ucmp]
1319 (Note that only the 'mod' functions are actually for fields GF(2^m).
1320 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1322 For some functions, an the irreducible polynomial defining a
1323 field can be given as an 'unsigned int[]' with strictly
1324 decreasing elements giving the indices of those bits that are set;
1325 i.e., p[] represents the polynomial
1326 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1328 p[0] > p[1] > ... > p[k] = 0.
1329 This applies to the following functions:
1334 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1335 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1337 BN_GF2m_mod_sqrt_arr
1338 BN_GF2m_mod_solve_quad_arr
1342 Conversion can be performed by the following functions:
1347 bntest.c has additional tests for binary polynomial arithmetic.
1349 Two implementations for BN_GF2m_mod_div() are available.
1350 The default algorithm simply uses BN_GF2m_mod_inv() and
1351 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1352 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1353 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1355 [Sheueling Chang Shantz and Douglas Stebila
1356 (Sun Microsystems Laboratories)]
1358 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1359 functionality is disabled at compile-time.
1360 [Douglas Stebila <douglas.stebila@sun.com>]
1362 *) Change default behaviour of 'openssl asn1parse' so that more
1363 information is visible when viewing, e.g., a certificate:
1365 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1366 mode the content of non-printable OCTET STRINGs is output in a
1367 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1368 avoid the appearance of a printable string.
1369 [Nils Larsch <nla@trustcenter.de>]
1371 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1373 EC_GROUP_set_asn1_flag()
1374 EC_GROUP_get_asn1_flag()
1375 EC_GROUP_set_point_conversion_form()
1376 EC_GROUP_get_point_conversion_form()
1377 These control ASN1 encoding details:
1378 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1379 has been set to OPENSSL_EC_NAMED_CURVE.
1380 - Points are encoded in uncompressed form by default; options for
1381 asn1_for are as for point2oct, namely
1382 POINT_CONVERSION_COMPRESSED
1383 POINT_CONVERSION_UNCOMPRESSED
1384 POINT_CONVERSION_HYBRID
1386 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1389 EC_GROUP_get0_seed()
1390 EC_GROUP_get_seed_len()
1391 This is used only for ASN1 purposes (so far).
1392 [Nils Larsch <nla@trustcenter.de>]
1394 *) Add 'field_type' member to EC_METHOD, which holds the NID
1395 of the appropriate field type OID. The new function
1396 EC_METHOD_get_field_type() returns this value.
1397 [Nils Larsch <nla@trustcenter.de>]
1402 EC_POINT_point2hex()
1403 EC_POINT_hex2point()
1404 providing useful interfaces to EC_POINT_point2oct() and
1405 EC_POINT_oct2point().
1406 [Nils Larsch <nla@trustcenter.de>]
1408 *) Change internals of the EC library so that the functions
1409 EC_GROUP_set_generator()
1410 EC_GROUP_get_generator()
1411 EC_GROUP_get_order()
1412 EC_GROUP_get_cofactor()
1413 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1414 to methods, which would lead to unnecessary code duplication when
1415 adding different types of curves.
1416 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1418 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1419 arithmetic, and such that modified wNAFs are generated
1420 (which avoid length expansion in many cases).
1423 *) Add a function EC_GROUP_check_discriminant() (defined via
1424 EC_METHOD) that verifies that the curve discriminant is non-zero.
1426 Add a function EC_GROUP_check() that makes some sanity tests
1427 on a EC_GROUP, its generator and order. This includes
1428 EC_GROUP_check_discriminant().
1429 [Nils Larsch <nla@trustcenter.de>]
1431 *) Add ECDSA in new directory crypto/ecdsa/.
1433 Add applications 'openssl ecparam' and 'openssl ecdsa'
1434 (these are based on 'openssl dsaparam' and 'openssl dsa').
1436 ECDSA support is also included in various other files across the
1437 library. Most notably,
1438 - 'openssl req' now has a '-newkey ecdsa:file' option;
1439 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1440 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1441 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1442 them suitable for ECDSA where domain parameters must be
1443 extracted before the specific public key;
1444 - ECDSA engine support has been added.
1445 [Nils Larsch <nla@trustcenter.de>]
1447 *) Include some named elliptic curves, and add OIDs from X9.62,
1448 SECG, and WAP/WTLS. Each curve can be obtained from the new
1450 EC_GROUP_new_by_curve_name(),
1451 and the list of available named curves can be obtained with
1452 EC_get_builtin_curves().
1453 Also add a 'curve_name' member to EC_GROUP objects, which can be
1455 EC_GROUP_set_curve_name()
1456 EC_GROUP_get_curve_name()
1457 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1459 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1460 was actually never needed) and in BN_mul(). The removal in BN_mul()
1461 required a small change in bn_mul_part_recursive() and the addition
1462 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1463 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1464 bn_sub_words() and bn_add_words() except they take arrays with
1468 Changes between 0.9.7m and 0.9.7n [xx XXX xxxx]
1470 *) In the SSL/TLS server implementation, be strict about session ID
1471 context matching (which matters if an application uses a single
1472 external cache for different purposes). Previously,
1473 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1474 set. This did ensure strict client verification, but meant that,
1475 with applications using a single external cache for quite
1476 different requirements, clients could circumvent ciphersuite
1477 restrictions for a given session ID context by starting a session
1478 in a different context.
1481 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1483 *) Cleanse PEM buffers before freeing them since they may contain
1485 [Benjamin Bennett <ben@psc.edu>]
1487 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1488 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1489 authentication-only ciphersuites.
1492 *) Since AES128 and AES256 share a single mask bit in the logic of
1493 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1494 kludge to work properly if AES128 is available and AES256 isn't.
1497 *) Expand security boundary to match 1.1.1 module.
1500 *) Remove redundant features: hash file source, editing of test vectors
1501 modify fipsld to use external fips_premain.c signature.
1504 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1505 run algorithm test programs.
1508 *) Make algorithm test programs more tolerant of whitespace.
1511 *) Have SSL/TLS server implementation tolerate "mismatched" record
1512 protocol version while receiving ClientHello even if the
1513 ClientHello is fragmented. (The server can't insist on the
1514 particular protocol version it has chosen before the ServerHello
1515 message has informed the client about his choice.)
1518 *) Load error codes if they are not already present instead of using a
1519 static variable. This allows them to be cleanly unloaded and reloaded.
1522 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1524 *) Introduce limits to prevent malicious keys being able to
1525 cause a denial of service. (CVE-2006-2940)
1526 [Steve Henson, Bodo Moeller]
1528 *) Fix ASN.1 parsing of certain invalid structures that can result
1529 in a denial of service. (CVE-2006-2937) [Steve Henson]
1531 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1532 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1534 *) Fix SSL client code which could crash if connecting to a
1535 malicious SSLv2 server. (CVE-2006-4343)
1536 [Tavis Ormandy and Will Drewry, Google Security Team]
1538 *) Change ciphersuite string processing so that an explicit
1539 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1540 will no longer include "AES128-SHA"), and any other similar
1541 ciphersuite (same bitmap) from *other* protocol versions (so that
1542 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1543 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1544 changes from 0.9.8b and 0.9.8d.
1547 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1549 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1550 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1552 *) Change the Unix randomness entropy gathering to use poll() when
1553 possible instead of select(), since the latter has some
1554 undesirable limitations.
1555 [Darryl Miles via Richard Levitte and Bodo Moeller]
1557 *) Disable rogue ciphersuites:
1559 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1560 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1561 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1563 The latter two were purportedly from
1564 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1567 Also deactive the remaining ciphersuites from
1568 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1569 unofficial, and the ID has long expired.
1572 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1573 dual-core machines) and other potential thread-safety issues.
1576 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1578 *) Adapt fipsld and the build system to link against the validated FIPS
1579 module in FIPS mode.
1582 *) Fixes for VC++ 2005 build under Windows.
1585 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1586 from a Windows bash shell such as MSYS. It is autodetected from the
1587 "config" script when run from a VC++ environment. Modify standard VC++
1588 build to use fipscanister.o from the GNU make build.
1591 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1593 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1594 The value now differs depending on if you build for FIPS or not.
1595 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1596 safely run with a non-FIPSed libcrypto, as it may crash because of
1597 the difference induced by this change.
1600 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1602 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1603 (part of SSL_OP_ALL). This option used to disable the
1604 countermeasure against man-in-the-middle protocol-version
1605 rollback in the SSL 2.0 server implementation, which is a bad
1606 idea. (CVE-2005-2969)
1608 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1609 for Information Security, National Institute of Advanced Industrial
1610 Science and Technology [AIST], Japan)]
1612 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1613 mainly for FIPS compliance and not fully integrated at this stage.
1616 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1617 the exponentiation using a fixed-length exponent. (Otherwise,
1618 the information leaked through timing could expose the secret key
1619 after many signatures; cf. Bleichenbacher's attack on DSA with
1623 *) Make a new fixed-window mod_exp implementation the default for
1624 RSA, DSA, and DH private-key operations so that the sequence of
1625 squares and multiplies and the memory access pattern are
1626 independent of the particular secret key. This will mitigate
1627 cache-timing and potential related attacks.
1629 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1630 and this is automatically used by BN_mod_exp_mont() if the new flag
1631 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1632 will use this BN flag for private exponents unless the flag
1633 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1634 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1636 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1638 *) Change the client implementation for SSLv23_method() and
1639 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1640 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1641 (Previously, the SSL 2.0 backwards compatible Client Hello
1642 message format would be used even with SSL_OP_NO_SSLv2.)
1645 *) Add support for smime-type MIME parameter in S/MIME messages which some
1649 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1650 a threadsafe manner. Modify rsa code to use new function and add calls
1651 to dsa and dh code (which had race conditions before).
1654 *) Include the fixed error library code in the C error file definitions
1655 instead of fixing them up at runtime. This keeps the error code
1656 structures constant.
1659 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1661 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1664 *) Fixes for newer kerberos headers. NB: the casts are needed because
1665 the 'length' field is signed on one version and unsigned on another
1666 with no (?) obvious way to tell the difference, without these VC++
1667 complains. Also the "definition" of FAR (blank) is no longer included
1668 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1669 some needed definitions.
1672 *) Undo Cygwin change.
1675 *) Added support for proxy certificates according to RFC 3820.
1676 Because they may be a security thread to unaware applications,
1677 they must be explicitely allowed in run-time. See
1678 docs/HOWTO/proxy_certificates.txt for further information.
1681 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1683 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1684 server and client random values. Previously
1685 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1686 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1688 This change has negligible security impact because:
1690 1. Server and client random values still have 24 bytes of pseudo random
1693 2. Server and client random values are sent in the clear in the initial
1696 3. The master secret is derived using the premaster secret (48 bytes in
1697 size for static RSA ciphersuites) as well as client server and random
1700 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1703 [Stephen Henson, reported by UK NISCC]
1705 *) Use Windows randomness collection on Cygwin.
1708 *) Fix hang in EGD/PRNGD query when communication socket is closed
1709 prematurely by EGD/PRNGD.
1710 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1712 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1715 *) Back-port of selected performance improvements from development
1716 branch, as well as improved support for PowerPC platforms.
1719 *) Add lots of checks for memory allocation failure, error codes to indicate
1720 failure and freeing up memory if a failure occurs.
1721 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1723 *) Add new -passin argument to dgst.
1726 *) Perform some character comparisons of different types in X509_NAME_cmp:
1727 this is needed for some certificates that reencode DNs into UTF8Strings
1728 (in violation of RFC3280) and can't or wont issue name rollover
1732 *) Make an explicit check during certificate validation to see that
1733 the CA setting in each certificate on the chain is correct. As a
1734 side effect always do the following basic checks on extensions,
1735 not just when there's an associated purpose to the check:
1737 - if there is an unhandled critical extension (unless the user
1738 has chosen to ignore this fault)
1739 - if the path length has been exceeded (if one is set at all)
1740 - that certain extensions fit the associated purpose (if one has
1744 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1746 *) Avoid a race condition when CRLs are checked in a multi threaded
1747 environment. This would happen due to the reordering of the revoked
1748 entries during signature checking and serial number lookup. Now the
1749 encoding is cached and the serial number sort performed under a lock.
1750 Add new STACK function sk_is_sorted().
1753 *) Add Delta CRL to the extension code.
1756 *) Various fixes to s3_pkt.c so alerts are sent properly.
1757 [David Holmes <d.holmes@f5.com>]
1759 *) Reduce the chances of duplicate issuer name and serial numbers (in
1760 violation of RFC3280) using the OpenSSL certificate creation utilities.
1761 This is done by creating a random 64 bit value for the initial serial
1762 number when a serial number file is created or when a self signed
1763 certificate is created using 'openssl req -x509'. The initial serial
1764 number file is created using 'openssl x509 -next_serial' in CA.pl
1765 rather than being initialized to 1.
1768 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1770 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1771 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1772 [Joe Orton, Steve Henson]
1774 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1776 [Joe Orton, Steve Henson]
1778 *) Make it possible to have multiple active certificates with the same
1779 subject in the CA index file. This is done only if the keyword
1780 'unique_subject' is set to 'no' in the main CA section (default
1781 if 'CA_default') of the configuration file. The value is saved
1782 with the database itself in a separate index attribute file,
1783 named like the index file with '.attr' appended to the name.
1786 *) X509 verify fixes. Disable broken certificate workarounds when
1787 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1788 keyUsage extension present. Don't accept CRLs with unhandled critical
1789 extensions: since verify currently doesn't process CRL extensions this
1790 rejects a CRL with *any* critical extensions. Add new verify error codes
1794 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1795 A clarification of RFC2560 will require the use of OCTET STRINGs and
1796 some implementations cannot handle the current raw format. Since OpenSSL
1797 copies and compares OCSP nonces as opaque blobs without any attempt at
1798 parsing them this should not create any compatibility issues.
1801 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1802 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1803 this HMAC (and other) operations are several times slower than OpenSSL
1807 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1808 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1810 *) Use the correct content when signing type "other".
1813 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1815 *) Fix various bugs revealed by running the NISCC test suite:
1817 Stop out of bounds reads in the ASN1 code when presented with
1818 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1820 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1822 If verify callback ignores invalid public key errors don't try to check
1823 certificate signature with the NULL public key.
1827 *) New -ignore_err option in ocsp application to stop the server
1828 exiting on the first error in a request.
1831 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1832 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1836 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1837 extra data after the compression methods not only for TLS 1.0
1838 but also for SSL 3.0 (as required by the specification).
1839 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1841 *) Change X509_certificate_type() to mark the key as exported/exportable
1842 when it's 512 *bits* long, not 512 bytes.
1845 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1846 blocks during encryption.
1849 *) Various fixes to base64 BIO and non blocking I/O. On write
1850 flushes were not handled properly if the BIO retried. On read
1851 data was not being buffered properly and had various logic bugs.
1852 This also affects blocking I/O when the data being decoded is a
1856 *) Various S/MIME bugfixes and compatibility changes:
1857 output correct application/pkcs7 MIME type if
1858 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1859 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1860 of files as .eml work). Correctly handle very long lines in MIME
1864 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1866 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1867 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1868 a protocol version number mismatch like a decryption error
1869 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1872 *) Turn on RSA blinding by default in the default implementation
1873 to avoid a timing attack. Applications that don't want it can call
1874 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1875 They would be ill-advised to do so in most cases.
1876 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1878 *) Change RSA blinding code so that it works when the PRNG is not
1879 seeded (in this case, the secret RSA exponent is abused as
1880 an unpredictable seed -- if it is not unpredictable, there
1881 is no point in blinding anyway). Make RSA blinding thread-safe
1882 by remembering the creator's thread ID in rsa->blinding and
1883 having all other threads use local one-time blinding factors
1884 (this requires more computation than sharing rsa->blinding, but
1885 avoids excessive locking; and if an RSA object is not shared
1886 between threads, blinding will still be very fast).
1889 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1890 ENGINE as defaults for all supported algorithms irrespective of
1891 the 'flags' parameter. 'flags' is now honoured, so applications
1892 should make sure they are passing it correctly.
1895 *) Target "mingw" now allows native Windows code to be generated in
1896 the Cygwin environment as well as with the MinGW compiler.
1899 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1901 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1902 via timing by performing a MAC computation even if incorrrect
1903 block cipher padding has been found. This is a countermeasure
1904 against active attacks where the attacker has to distinguish
1905 between bad padding and a MAC verification error. (CVE-2003-0078)
1907 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1908 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1909 Martin Vuagnoux (EPFL, Ilion)]
1911 *) Make the no-err option work as intended. The intention with no-err
1912 is not to have the whole error stack handling routines removed from
1913 libcrypto, it's only intended to remove all the function name and
1914 reason texts, thereby removing some of the footprint that may not
1915 be interesting if those errors aren't displayed anyway.
1917 NOTE: it's still possible for any application or module to have it's
1918 own set of error texts inserted. The routines are there, just not
1919 used by default when no-err is given.
1922 *) Add support for FreeBSD on IA64.
1923 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1925 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1926 Kerberos function mit_des_cbc_cksum(). Before this change,
1927 the value returned by DES_cbc_cksum() was like the one from
1928 mit_des_cbc_cksum(), except the bytes were swapped.
1929 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1931 *) Allow an application to disable the automatic SSL chain building.
1932 Before this a rather primitive chain build was always performed in
1933 ssl3_output_cert_chain(): an application had no way to send the
1934 correct chain if the automatic operation produced an incorrect result.
1936 Now the chain builder is disabled if either:
1938 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1940 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1942 The reasoning behind this is that an application would not want the
1943 auto chain building to take place if extra chain certificates are
1944 present and it might also want a means of sending no additional
1945 certificates (for example the chain has two certificates and the
1949 *) Add the possibility to build without the ENGINE framework.
1950 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1952 *) Under Win32 gmtime() can return NULL: check return value in
1953 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1956 *) DSA routines: under certain error conditions uninitialized BN objects
1957 could be freed. Solution: make sure initialization is performed early
1958 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1959 Nils Larsch <nla@trustcenter.de> via PR#459)
1962 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1963 checked on reconnect on the client side, therefore session resumption
1964 could still fail with a "ssl session id is different" error. This
1965 behaviour is masked when SSL_OP_ALL is used due to
1966 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1967 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1968 followup to PR #377.
1971 *) IA-32 assembler support enhancements: unified ELF targets, support
1972 for SCO/Caldera platforms, fix for Cygwin shared build.
1975 *) Add support for FreeBSD on sparc64. As a consequence, support for
1976 FreeBSD on non-x86 processors is separate from x86 processors on
1977 the config script, much like the NetBSD support.
1978 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1980 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1982 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1985 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1986 code (06) was taken as the first octet of the session ID and the last
1987 octet was ignored consequently. As a result SSLv2 client side session
1988 caching could not have worked due to the session ID mismatch between
1990 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1994 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1995 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1999 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2000 seems that in spite of existing for more than a year, many application
2001 author have done nothing to provide the necessary callbacks, which
2002 means that this particular engine will not work properly anywhere.
2003 This is a very unfortunate situation which forces us, in the name
2004 of usability, to give the hw_ncipher.c a static lock, which is part
2006 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2007 appear in 0.9.8 or later. We EXPECT application authors to have
2008 dealt properly with this when 0.9.8 is released (unless we actually
2009 make such changes in the libcrypto locking code that changes will
2010 have to be made anyway).
2013 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2014 octets have been read, EOF or an error occurs. Without this change
2015 some truncated ASN1 structures will not produce an error.
2018 *) Disable Heimdal support, since it hasn't been fully implemented.
2019 Still give the possibility to force the use of Heimdal, but with
2020 warnings and a request that patches get sent to openssl-dev.
2023 *) Add the VC-CE target, introduce the WINCE sysname, and add
2024 INSTALL.WCE and appropriate conditionals to make it build.
2025 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2027 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2028 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2029 edit numbers of the version.
2030 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2032 *) Introduce safe string copy and catenation functions
2033 (BUF_strlcpy() and BUF_strlcat()).
2034 [Ben Laurie (CHATS) and Richard Levitte]
2036 *) Avoid using fixed-size buffers for one-line DNs.
2037 [Ben Laurie (CHATS)]
2039 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2040 resizing buffers containing secrets, and use where appropriate.
2041 [Ben Laurie (CHATS)]
2043 *) Avoid using fixed size buffers for configuration file location.
2044 [Ben Laurie (CHATS)]
2046 *) Avoid filename truncation for various CA files.
2047 [Ben Laurie (CHATS)]
2049 *) Use sizeof in preference to magic numbers.
2050 [Ben Laurie (CHATS)]
2052 *) Avoid filename truncation in cert requests.
2053 [Ben Laurie (CHATS)]
2055 *) Add assertions to check for (supposedly impossible) buffer
2057 [Ben Laurie (CHATS)]
2059 *) Don't cache truncated DNS entries in the local cache (this could
2060 potentially lead to a spoofing attack).
2061 [Ben Laurie (CHATS)]
2063 *) Fix various buffers to be large enough for hex/decimal
2064 representations in a platform independent manner.
2065 [Ben Laurie (CHATS)]
2067 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2068 resizing buffers containing secrets, and use where appropriate.
2069 [Ben Laurie (CHATS)]
2071 *) Add BIO_indent() to avoid much slightly worrying code to do
2073 [Ben Laurie (CHATS)]
2075 *) Convert sprintf()/BIO_puts() to BIO_printf().
2076 [Ben Laurie (CHATS)]
2078 *) buffer_gets() could terminate with the buffer only half
2080 [Ben Laurie (CHATS)]
2082 *) Add assertions to prevent user-supplied crypto functions from
2083 overflowing internal buffers by having large block sizes, etc.
2084 [Ben Laurie (CHATS)]
2086 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2088 [Ben Laurie (CHATS)]
2090 *) Eliminate unused copy of key in RC4.
2091 [Ben Laurie (CHATS)]
2093 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2094 [Ben Laurie (CHATS)]
2096 *) Fix off-by-one error in EGD path.
2097 [Ben Laurie (CHATS)]
2099 *) If RANDFILE path is too long, ignore instead of truncating.
2100 [Ben Laurie (CHATS)]
2102 *) Eliminate unused and incorrectly sized X.509 structure
2104 [Ben Laurie (CHATS)]
2106 *) Eliminate unused and dangerous function knumber().
2107 [Ben Laurie (CHATS)]
2109 *) Eliminate unused and dangerous structure, KSSL_ERR.
2110 [Ben Laurie (CHATS)]
2112 *) Protect against overlong session ID context length in an encoded
2113 session object. Since these are local, this does not appear to be
2115 [Ben Laurie (CHATS)]
2117 *) Change from security patch (see 0.9.6e below) that did not affect
2118 the 0.9.6 release series:
2120 Remote buffer overflow in SSL3 protocol - an attacker could
2121 supply an oversized master key in Kerberos-enabled versions.
2123 [Ben Laurie (CHATS)]
2125 *) Change the SSL kerb5 codes to match RFC 2712.
2128 *) Make -nameopt work fully for req and add -reqopt switch.
2129 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2131 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2132 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2134 *) Make sure tests can be performed even if the corresponding algorithms
2135 have been removed entirely. This was also the last step to make
2136 OpenSSL compilable with DJGPP under all reasonable conditions.
2137 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2139 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2140 to allow version independent disabling of normally unselected ciphers,
2141 which may be activated as a side-effect of selecting a single cipher.
2143 (E.g., cipher list string "RSA" enables ciphersuites that are left
2144 out of "ALL" because they do not provide symmetric encryption.
2145 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2146 [Lutz Jaenicke, Bodo Moeller]
2148 *) Add appropriate support for separate platform-dependent build
2149 directories. The recommended way to make a platform-dependent
2150 build directory is the following (tested on Linux), maybe with
2153 # Place yourself outside of the OpenSSL source tree. In
2154 # this example, the environment variable OPENSSL_SOURCE
2155 # is assumed to contain the absolute OpenSSL source directory.
2156 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2157 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2158 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2159 mkdir -p `dirname $F`
2160 ln -s $OPENSSL_SOURCE/$F $F
2163 To be absolutely sure not to disturb the source tree, a "make clean"
2164 is a good thing. If it isn't successfull, don't worry about it,
2165 it probably means the source directory is very clean.
2168 *) Make sure any ENGINE control commands make local copies of string
2169 pointers passed to them whenever necessary. Otherwise it is possible
2170 the caller may have overwritten (or deallocated) the original string
2171 data when a later ENGINE operation tries to use the stored values.
2172 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2174 *) Improve diagnostics in file reading and command-line digests.
2175 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2177 *) Add AES modes CFB and OFB to the object database. Correct an
2178 error in AES-CFB decryption.
2181 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2182 allows existing EVP_CIPHER_CTX structures to be reused after
2183 calling EVP_*Final(). This behaviour is used by encryption
2184 BIOs and some applications. This has the side effect that
2185 applications must explicitly clean up cipher contexts with
2186 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2189 *) Check the values of dna and dnb in bn_mul_recursive before calling
2190 bn_mul_comba (a non zero value means the a or b arrays do not contain
2191 n2 elements) and fallback to bn_mul_normal if either is not zero.
2194 *) Fix escaping of non-ASCII characters when using the -subj option
2195 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2198 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2199 form for "surname", serialNumber has no short form.
2200 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2201 therefore remove "mail" short name for "internet 7".
2202 The OID for unique identifiers in X509 certificates is
2203 x500UniqueIdentifier, not uniqueIdentifier.
2204 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2207 *) Add an "init" command to the ENGINE config module and auto initialize
2208 ENGINEs. Without any "init" command the ENGINE will be initialized
2209 after all ctrl commands have been executed on it. If init=1 the
2210 ENGINE is initailized at that point (ctrls before that point are run
2211 on the uninitialized ENGINE and after on the initialized one). If
2212 init=0 then the ENGINE will not be iniatialized at all.
2215 *) Fix the 'app_verify_callback' interface so that the user-defined
2216 argument is actually passed to the callback: In the
2217 SSL_CTX_set_cert_verify_callback() prototype, the callback
2218 declaration has been changed from
2221 int (*cb)(X509_STORE_CTX *,void *);
2222 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2223 i=s->ctx->app_verify_callback(&ctx)
2224 has been changed into
2225 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2227 To update applications using SSL_CTX_set_cert_verify_callback(),
2228 a dummy argument can be added to their callback functions.
2229 [D. K. Smetters <smetters@parc.xerox.com>]
2231 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2232 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2234 *) Add and OPENSSL_LOAD_CONF define which will cause
2235 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2236 This allows older applications to transparently support certain
2237 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2238 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2239 load the config file and OPENSSL_add_all_algorithms_conf() which will
2240 always load it have also been added.
2243 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2244 Adjust NIDs and EVP layer.
2245 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2247 *) Config modules support in openssl utility.
2249 Most commands now load modules from the config file,
2250 though in a few (such as version) this isn't done
2251 because it couldn't be used for anything.
2253 In the case of ca and req the config file used is
2254 the same as the utility itself: that is the -config
2255 command line option can be used to specify an
2259 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2260 use "openssl_conf" if filename is NULL use default openssl config file.
2263 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2264 config section name. Add a new flag to tolerate a missing config file
2265 and move code to CONF_modules_load_file().
2268 *) Support for crypto accelerator cards from Accelerated Encryption
2269 Processing, www.aep.ie. (Use engine 'aep')
2270 The support was copied from 0.9.6c [engine] and adapted/corrected
2271 to work with the new engine framework.
2272 [AEP Inc. and Richard Levitte]
2274 *) Support for SureWare crypto accelerator cards from Baltimore
2275 Technologies. (Use engine 'sureware')
2276 The support was copied from 0.9.6c [engine] and adapted
2277 to work with the new engine framework.
2280 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2281 make the newer ENGINE framework commands for the CHIL engine work.
2282 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2284 *) Make it possible to produce shared libraries on ReliantUNIX.
2285 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2287 *) Add the configuration target debug-linux-ppro.
2288 Make 'openssl rsa' use the general key loading routines
2289 implemented in apps.c, and make those routines able to
2290 handle the key format FORMAT_NETSCAPE and the variant
2292 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2294 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2295 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2297 *) Add -keyform to rsautl, and document -engine.
2298 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2300 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2301 BIO_R_NO_SUCH_FILE error code rather than the generic
2302 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2305 *) Add new functions
2307 ERR_peek_last_error_line
2308 ERR_peek_last_error_line_data.
2309 These are similar to
2312 ERR_peek_error_line_data,
2313 but report on the latest error recorded rather than the first one
2314 still in the error queue.
2315 [Ben Laurie, Bodo Moeller]
2317 *) default_algorithms option in ENGINE config module. This allows things
2319 default_algorithms = ALL
2320 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2323 *) Prelminary ENGINE config module.
2326 *) New experimental application configuration code.
2329 *) Change the AES code to follow the same name structure as all other
2330 symmetric ciphers, and behave the same way. Move everything to
2331 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2332 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2334 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2335 [Ben Laurie and Theo de Raadt]
2337 *) Add option to output public keys in req command.
2338 [Massimiliano Pala madwolf@openca.org]
2340 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2341 (up to about 10% better than before for P-192 and P-224).
2344 *) New functions/macros
2346 SSL_CTX_set_msg_callback(ctx, cb)
2347 SSL_CTX_set_msg_callback_arg(ctx, arg)
2348 SSL_set_msg_callback(ssl, cb)
2349 SSL_set_msg_callback_arg(ssl, arg)
2351 to request calling a callback function
2353 void cb(int write_p, int version, int content_type,
2354 const void *buf, size_t len, SSL *ssl, void *arg)
2356 whenever a protocol message has been completely received
2357 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2358 protocol version according to which the SSL library interprets
2359 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2360 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2361 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2362 specification (change_cipher_spec(20), alert(21), handshake(22)).
2363 'buf' and 'len' point to the actual message, 'ssl' to the
2364 SSL object, and 'arg' is the application-defined value set by
2365 SSL[_CTX]_set_msg_callback_arg().
2367 'openssl s_client' and 'openssl s_server' have new '-msg' options
2368 to enable a callback that displays all protocol messages.
2371 *) Change the shared library support so shared libraries are built as
2372 soon as the corresponding static library is finished, and thereby get
2373 openssl and the test programs linked against the shared library.
2374 This still only happens when the keyword "shard" has been given to
2375 the configuration scripts.
2377 NOTE: shared library support is still an experimental thing, and
2378 backward binary compatibility is still not guaranteed.
2379 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2381 *) Add support for Subject Information Access extension.
2382 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2384 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2385 additional bytes when new memory had to be allocated, not just
2386 when reusing an existing buffer.
2389 *) New command line and configuration option 'utf8' for the req command.
2390 This allows field values to be specified as UTF8 strings.
2393 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2394 runs for the former and machine-readable output for the latter.
2397 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2398 of the e-mail address in the DN (i.e., it will go into a certificate
2399 extension only). The new configuration file option 'email_in_dn = no'
2400 has the same effect.
2401 [Massimiliano Pala madwolf@openca.org]
2403 *) Change all functions with names starting with des_ to be starting
2404 with DES_ instead. Add wrappers that are compatible with libdes,
2405 but are named _ossl_old_des_*. Finally, add macros that map the
2406 des_* symbols to the corresponding _ossl_old_des_* if libdes
2407 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2408 desired, the des_* symbols will be mapped to DES_*, with one
2411 Since we provide two compatibility mappings, the user needs to
2412 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2413 compatibility is desired. The default (i.e., when that macro
2414 isn't defined) is OpenSSL 0.9.6c compatibility.
2416 There are also macros that enable and disable the support of old
2417 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2418 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2419 are defined, the default will apply: to support the old des routines.
2421 In either case, one must include openssl/des.h to get the correct
2422 definitions. Do not try to just include openssl/des_old.h, that
2425 NOTE: This is a major break of an old API into a new one. Software
2426 authors are encouraged to switch to the DES_ style functions. Some
2427 time in the future, des_old.h and the libdes compatibility functions
2428 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2429 default), and then completely removed.
2432 *) Test for certificates which contain unsupported critical extensions.
2433 If such a certificate is found during a verify operation it is
2434 rejected by default: this behaviour can be overridden by either
2435 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2436 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2437 X509_supported_extension() has also been added which returns 1 if a
2438 particular extension is supported.
2441 *) Modify the behaviour of EVP cipher functions in similar way to digests
2442 to retain compatibility with existing code.
2445 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2446 compatibility with existing code. In particular the 'ctx' parameter does
2447 not have to be to be initialized before the call to EVP_DigestInit() and
2448 it is tidied up after a call to EVP_DigestFinal(). New function
2449 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2450 EVP_MD_CTX_copy() changed to not require the destination to be
2451 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2452 requires the destination to be valid.
2454 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2455 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2458 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2459 so that complete 'Handshake' protocol structures are kept in memory
2460 instead of overwriting 'msg_type' and 'length' with 'body' data.
2463 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2464 [Massimo Santin via Richard Levitte]
2466 *) Major restructuring to the underlying ENGINE code. This includes
2467 reduction of linker bloat, separation of pure "ENGINE" manipulation
2468 (initialisation, etc) from functionality dealing with implementations
2469 of specific crypto iterfaces. This change also introduces integrated
2470 support for symmetric ciphers and digest implementations - so ENGINEs
2471 can now accelerate these by providing EVP_CIPHER and EVP_MD
2472 implementations of their own. This is detailed in crypto/engine/README
2473 as it couldn't be adequately described here. However, there are a few
2474 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2475 were changed in the original introduction of ENGINE code have now
2476 reverted back - the hooking from this code to ENGINE is now a good
2477 deal more passive and at run-time, operations deal directly with
2478 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2479 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2480 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2481 they were not being used by the framework as there is no concept of a
2482 BIGNUM_METHOD and they could not be generalised to the new
2483 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2484 ENGINE_cpy() has been removed as it cannot be consistently defined in
2488 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2491 *) Change mkdef.pl to sort symbols that get the same entry number,
2492 and make sure the automatically generated functions ERR_load_*
2493 become part of libeay.num as well.
2496 *) New function SSL_renegotiate_pending(). This returns true once
2497 renegotiation has been requested (either SSL_renegotiate() call
2498 or HelloRequest/ClientHello receveived from the peer) and becomes
2499 false once a handshake has been completed.
2500 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2501 sends a HelloRequest, but does not ensure that a handshake takes
2502 place. SSL_renegotiate_pending() is useful for checking if the
2503 client has followed the request.)
2506 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2507 By default, clients may request session resumption even during
2508 renegotiation (if session ID contexts permit); with this option,
2509 session resumption is possible only in the first handshake.
2511 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2512 more bits available for options that should not be part of
2513 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2516 *) Add some demos for certificate and certificate request creation.
2519 *) Make maximum certificate chain size accepted from the peer application
2520 settable (SSL*_get/set_max_cert_list()), as proposed by
2521 "Douglas E. Engert" <deengert@anl.gov>.
2524 *) Add support for shared libraries for Unixware-7
2525 (Boyd Lynn Gerber <gerberb@zenez.com>).
2528 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2529 be done prior to destruction. Use this to unload error strings from
2530 ENGINEs that load their own error strings. NB: This adds two new API
2531 functions to "get" and "set" this destroy handler in an ENGINE.
2534 *) Alter all existing ENGINE implementations (except "openssl" and
2535 "openbsd") to dynamically instantiate their own error strings. This
2536 makes them more flexible to be built both as statically-linked ENGINEs
2537 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2538 Also, add stub code to each that makes building them as self-contained
2539 shared-libraries easier (see README.ENGINE).
2542 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2543 implementations into applications that are completely implemented in
2544 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2545 commands that can be used to configure what shared-library to load and
2546 to control aspects of the way it is handled. Also, made an update to
2547 the README.ENGINE file that brings its information up-to-date and
2548 provides some information and instructions on the "dynamic" ENGINE
2549 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2552 *) Make it possible to unload ranges of ERR strings with a new
2553 "ERR_unload_strings" function.
2556 *) Add a copy() function to EVP_MD.
2559 *) Make EVP_MD routines take a context pointer instead of just the
2560 md_data void pointer.
2563 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2564 that the digest can only process a single chunk of data
2565 (typically because it is provided by a piece of
2566 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2567 is only going to provide a single chunk of data, and hence the
2568 framework needn't accumulate the data for oneshot drivers.
2571 *) As with "ERR", make it possible to replace the underlying "ex_data"
2572 functions. This change also alters the storage and management of global
2573 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2574 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2575 index counters. The API functions that use this state have been changed
2576 to take a "class_index" rather than pointers to the class's local STACK
2577 and counter, and there is now an API function to dynamically create new
2578 classes. This centralisation allows us to (a) plug a lot of the
2579 thread-safety problems that existed, and (b) makes it possible to clean
2580 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2581 such data would previously have always leaked in application code and
2582 workarounds were in place to make the memory debugging turn a blind eye
2583 to it. Application code that doesn't use this new function will still
2584 leak as before, but their memory debugging output will announce it now
2585 rather than letting it slide.
2587 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2588 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2589 has a return value to indicate success or failure.
2592 *) Make it possible to replace the underlying "ERR" functions such that the
2593 global state (2 LHASH tables and 2 locks) is only used by the "default"
2594 implementation. This change also adds two functions to "get" and "set"
2595 the implementation prior to it being automatically set the first time
2596 any other ERR function takes place. Ie. an application can call "get",
2597 pass the return value to a module it has just loaded, and that module
2598 can call its own "set" function using that value. This means the
2599 module's "ERR" operations will use (and modify) the error state in the
2600 application and not in its own statically linked copy of OpenSSL code.
2603 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2604 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2605 the operation, and provides a more encapsulated way for external code
2606 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2607 to use these functions rather than manually incrementing the counts.
2609 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2612 *) Add EVP test program.
2615 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2618 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2619 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2620 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2621 These allow a CRL to be built without having to access X509_CRL fields
2622 directly. Modify 'ca' application to use new functions.
2625 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2626 bug workarounds. Rollback attack detection is a security feature.
2627 The problem will only arise on OpenSSL servers when TLSv1 is not
2628 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2629 Software authors not wanting to support TLSv1 will have special reasons
2630 for their choice and can explicitly enable this option.
2631 [Bodo Moeller, Lutz Jaenicke]
2633 *) Rationalise EVP so it can be extended: don't include a union of
2634 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2635 (similar to those existing for EVP_CIPHER_CTX).
2640 EVP_MD_CTX_init(&md); /* new function call */
2641 EVP_DigestInit(&md, EVP_sha1());
2642 EVP_DigestUpdate(&md, in, len);
2643 EVP_DigestFinal(&md, out, NULL);
2644 EVP_MD_CTX_cleanup(&md); /* new function call */
2648 *) Make DES key schedule conform to the usual scheme, as well as
2649 correcting its structure. This means that calls to DES functions
2650 now have to pass a pointer to a des_key_schedule instead of a
2651 plain des_key_schedule (which was actually always a pointer
2654 des_key_schedule ks;
2656 des_set_key_checked(..., &ks);
2657 des_ncbc_encrypt(..., &ks, ...);
2659 (Note that a later change renames 'des_...' into 'DES_...'.)
2662 *) Initial reduction of linker bloat: the use of some functions, such as
2663 PEM causes large amounts of unused functions to be linked in due to
2664 poor organisation. For example pem_all.c contains every PEM function
2665 which has a knock on effect of linking in large amounts of (unused)
2666 ASN1 code. Grouping together similar functions and splitting unrelated
2667 functions prevents this.
2670 *) Cleanup of EVP macros.
2673 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2674 correct _ecb suffix.
2677 *) Add initial OCSP responder support to ocsp application. The
2678 revocation information is handled using the text based index
2679 use by the ca application. The responder can either handle
2680 requests generated internally, supplied in files (for example
2681 via a CGI script) or using an internal minimal server.
2684 *) Add configuration choices to get zlib compression for TLS.
2687 *) Changes to Kerberos SSL for RFC 2712 compliance:
2688 1. Implemented real KerberosWrapper, instead of just using
2689 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2690 2. Implemented optional authenticator field of KerberosWrapper.
2692 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2693 and authenticator structs; see crypto/krb5/.
2695 Generalized Kerberos calls to support multiple Kerberos libraries.
2696 [Vern Staats <staatsvr@asc.hpc.mil>,
2697 Jeffrey Altman <jaltman@columbia.edu>
2698 via Richard Levitte]
2700 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2701 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2702 values for each of the key sizes rather than having just
2703 parameters (and 'speed' generating keys each time).
2706 *) Speed up EVP routines.
2709 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2710 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2711 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2712 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2714 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2715 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2716 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2719 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2721 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2724 *) Added the OS2-EMX target.
2725 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2727 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2728 to support NCONF routines in extension code. New function CONF_set_nconf()
2729 to allow functions which take an NCONF to also handle the old LHASH
2730 structure: this means that the old CONF compatible routines can be
2731 retained (in particular wrt extensions) without having to duplicate the
2732 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2735 *) Enhance the general user interface with mechanisms for inner control
2736 and with possibilities to have yes/no kind of prompts.
2739 *) Change all calls to low level digest routines in the library and
2740 applications to use EVP. Add missing calls to HMAC_cleanup() and
2741 don't assume HMAC_CTX can be copied using memcpy().
2742 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2744 *) Add the possibility to control engines through control names but with
2745 arbitrary arguments instead of just a string.
2746 Change the key loaders to take a UI_METHOD instead of a callback
2747 function pointer. NOTE: this breaks binary compatibility with earlier
2748 versions of OpenSSL [engine].
2749 Adapt the nCipher code for these new conditions and add a card insertion
2753 *) Enhance the general user interface with mechanisms to better support
2754 dialog box interfaces, application-defined prompts, the possibility
2755 to use defaults (for example default passwords from somewhere else)
2756 and interrupts/cancellations.
2759 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2760 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2763 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2764 tidy up some unnecessarily weird code in 'sk_new()').
2765 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2767 *) Change the key loading routines for ENGINEs to use the same kind
2768 callback (pem_password_cb) as all other routines that need this
2772 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2773 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2774 than this minimum value is recommended.
2777 *) New random seeder for OpenVMS, using the system process statistics
2778 that are easily reachable.
2781 *) Windows apparently can't transparently handle global
2782 variables defined in DLLs. Initialisations such as:
2784 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2786 wont compile. This is used by the any applications that need to
2787 declare their own ASN1 modules. This was fixed by adding the option
2788 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2789 needed for static libraries under Win32.
2792 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2793 setting of purpose and trust fields. New X509_STORE trust and
2794 purpose functions and tidy up setting in other SSL functions.
2797 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2798 structure. These are inherited by X509_STORE_CTX when it is
2799 initialised. This allows various defaults to be set in the
2800 X509_STORE structure (such as flags for CRL checking and custom
2801 purpose or trust settings) for functions which only use X509_STORE_CTX
2802 internally such as S/MIME.
2804 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2805 trust settings if they are not set in X509_STORE. This allows X509_STORE
2806 purposes and trust (in S/MIME for example) to override any set by default.
2808 Add command line options for CRL checking to smime, s_client and s_server
2812 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2813 are set then the CRL is looked up in the X509_STORE structure and
2814 its validity and signature checked, then if the certificate is found
2815 in the CRL the verify fails with a revoked error.
2817 Various new CRL related callbacks added to X509_STORE_CTX structure.
2819 Command line options added to 'verify' application to support this.
2821 This needs some additional work, such as being able to handle multiple
2822 CRLs with different times, extension based lookup (rather than just
2823 by subject name) and ultimately more complete V2 CRL extension
2827 *) Add a general user interface API (crypto/ui/). This is designed
2828 to replace things like des_read_password and friends (backward
2829 compatibility functions using this new API are provided).
2830 The purpose is to remove prompting functions from the DES code
2831 section as well as provide for prompting through dialog boxes in
2832 a window system and the like.
2835 *) Add "ex_data" support to ENGINE so implementations can add state at a
2836 per-structure level rather than having to store it globally.
2839 *) Make it possible for ENGINE structures to be copied when retrieved by
2840 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2841 This causes the "original" ENGINE structure to act like a template,
2842 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2843 operational state can be localised to each ENGINE structure, despite the
2844 fact they all share the same "methods". New ENGINE structures returned in
2845 this case have no functional references and the return value is the single
2846 structural reference. This matches the single structural reference returned
2847 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2851 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2852 needs to match any other type at all we need to manually clear the
2856 *) Changes to the "openssl engine" utility to include;
2857 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2858 about an ENGINE's available control commands.
2859 - executing control commands from command line arguments using the
2860 '-pre' and '-post' switches. '-post' is only used if '-t' is
2861 specified and the ENGINE is successfully initialised. The syntax for
2862 the individual commands are colon-separated, for example;
2863 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2866 *) New dynamic control command support for ENGINEs. ENGINEs can now
2867 declare their own commands (numbers), names (strings), descriptions,
2868 and input types for run-time discovery by calling applications. A
2869 subset of these commands are implicitly classed as "executable"
2870 depending on their input type, and only these can be invoked through
2871 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2872 can be based on user input, config files, etc). The distinction is
2873 that "executable" commands cannot return anything other than a boolean
2874 result and can only support numeric or string input, whereas some
2875 discoverable commands may only be for direct use through
2876 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2877 pointers, or other custom uses. The "executable" commands are to
2878 support parameterisations of ENGINE behaviour that can be
2879 unambiguously defined by ENGINEs and used consistently across any
2880 OpenSSL-based application. Commands have been added to all the
2881 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2882 control over shared-library paths without source code alterations.
2885 *) Changed all ENGINE implementations to dynamically allocate their
2886 ENGINEs rather than declaring them statically. Apart from this being
2887 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2888 this also allows the implementations to compile without using the
2889 internal engine_int.h header.
2892 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2893 'const' value. Any code that should be able to modify a RAND_METHOD
2894 should already have non-const pointers to it (ie. they should only
2895 modify their own ones).
2898 *) Made a variety of little tweaks to the ENGINE code.
2899 - "atalla" and "ubsec" string definitions were moved from header files
2900 to C code. "nuron" string definitions were placed in variables
2901 rather than hard-coded - allowing parameterisation of these values
2902 later on via ctrl() commands.
2903 - Removed unused "#if 0"'d code.
2904 - Fixed engine list iteration code so it uses ENGINE_free() to release
2905 structural references.
2906 - Constified the RAND_METHOD element of ENGINE structures.
2907 - Constified various get/set functions as appropriate and added
2908 missing functions (including a catch-all ENGINE_cpy that duplicates
2909 all ENGINE values onto a new ENGINE except reference counts/state).
2910 - Removed NULL parameter checks in get/set functions. Setting a method
2911 or function to NULL is a way of cancelling out a previously set
2912 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2913 and doesn't justify the extra error symbols and code.
2914 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2915 flags from engine_int.h to engine.h.
2916 - Changed prototypes for ENGINE handler functions (init(), finish(),
2917 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2920 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2921 to the algorithm using long division. The binary algorithm can be
2922 used only if the modulus is odd. On 32-bit systems, it is faster
2923 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2924 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2925 up to 450 bits. In 64-bit environments, the binary algorithm
2926 appears to be advantageous for much longer moduli; here we use it
2927 for moduli up to 2048 bits.
2930 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2931 could not support the combine flag in choice fields.
2934 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2935 extensions from a certificate request to the certificate.
2938 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2939 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2940 file: this allows the display of the certificate about to be
2941 signed to be customised, to allow certain fields to be included
2942 or excluded and extension details. The old system didn't display
2943 multicharacter strings properly, omitted fields not in the policy
2944 and couldn't display additional details such as extensions.
2947 *) Function EC_POINTs_mul for multiple scalar multiplication
2948 of an arbitrary number of elliptic curve points
2949 \sum scalars[i]*points[i],
2950 optionally including the generator defined for the EC_GROUP:
2951 scalar*generator + \sum scalars[i]*points[i].
2953 EC_POINT_mul is a simple wrapper function for the typical case
2954 that the point list has just one item (besides the optional
2958 *) First EC_METHODs for curves over GF(p):
2960 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2961 operations and provides various method functions that can also
2962 operate with faster implementations of modular arithmetic.
2964 EC_GFp_mont_method() reuses most functions that are part of
2965 EC_GFp_simple_method, but uses Montgomery arithmetic.
2967 [Bodo Moeller; point addition and point doubling
2968 implementation directly derived from source code provided by
2969 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2971 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2972 crypto/ec/ec_lib.c):
2974 Curves are EC_GROUP objects (with an optional group generator)
2975 based on EC_METHODs that are built into the library.
2977 Points are EC_POINT objects based on EC_GROUP objects.
2979 Most of the framework would be able to handle curves over arbitrary
2980 finite fields, but as there are no obvious types for fields other
2981 than GF(p), some functions are limited to that for now.
2984 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2985 that the file contains a complete HTTP response.
2988 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2989 change the def and num file printf format specifier from "%-40sXXX"
2990 to "%-39s XXX". The latter will always guarantee a space after the
2991 field while the former will cause them to run together if the field
2992 is 40 of more characters long.
2995 *) Constify the cipher and digest 'method' functions and structures
2996 and modify related functions to take constant EVP_MD and EVP_CIPHER
3000 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3001 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3004 *) Modify EVP_Digest*() routines so they now return values. Although the
3005 internal software routines can never fail additional hardware versions
3009 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3011 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3012 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3015 ERR_R_NESTED_ASN1_ERROR
3017 ERR_R_MISSING_ASN1_EOS
3018 were 4 .. 9, conflicting with
3019 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3021 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3022 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3024 Add new error code 'ERR_R_INTERNAL_ERROR'.
3027 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3031 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3032 sets the subject name for a new request or supersedes the
3033 subject name in a given request. Formats that can be parsed are
3034 'CN=Some Name, OU=myOU, C=IT'
3036 'CN=Some Name/OU=myOU/C=IT'.
3038 Add options '-batch' and '-verbose' to 'openssl req'.
3039 [Massimiliano Pala <madwolf@hackmasters.net>]
3041 *) Introduce the possibility to access global variables through
3042 functions on platform were that's the best way to handle exporting
3043 global variables in shared libraries. To enable this functionality,
3044 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3045 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3046 is normally done by Configure or something similar).
3048 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3049 in the source file (foo.c) like this:
3051 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3052 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3054 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3055 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3057 OPENSSL_DECLARE_GLOBAL(int,foo);
3058 #define foo OPENSSL_GLOBAL_REF(foo)
3059 OPENSSL_DECLARE_GLOBAL(double,bar);
3060 #define bar OPENSSL_GLOBAL_REF(bar)
3062 The #defines are very important, and therefore so is including the
3063 header file everywhere where the defined globals are used.
3065 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3066 of ASN.1 items, but that structure is a bit different.
3068 The largest change is in util/mkdef.pl which has been enhanced with
3069 better and easier to understand logic to choose which symbols should
3070 go into the Windows .def files as well as a number of fixes and code
3071 cleanup (among others, algorithm keywords are now sorted
3072 lexicographically to avoid constant rewrites).
3075 *) In BN_div() keep a copy of the sign of 'num' before writing the
3076 result to 'rm' because if rm==num the value will be overwritten
3077 and produce the wrong result if 'num' is negative: this caused
3078 problems with BN_mod() and BN_nnmod().
3081 *) Function OCSP_request_verify(). This checks the signature on an
3082 OCSP request and verifies the signer certificate. The signer
3083 certificate is just checked for a generic purpose and OCSP request
3087 *) Add OCSP_check_validity() function to check the validity of OCSP
3088 responses. OCSP responses are prepared in real time and may only
3089 be a few seconds old. Simply checking that the current time lies
3090 between thisUpdate and nextUpdate max reject otherwise valid responses
3091 caused by either OCSP responder or client clock inaccuracy. Instead
3092 we allow thisUpdate and nextUpdate to fall within a certain period of
3093 the current time. The age of the response can also optionally be
3094 checked. Two new options -validity_period and -status_age added to
3098 *) If signature or public key algorithm is unrecognized print out its
3099 OID rather that just UNKNOWN.
3102 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3103 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3104 ID to be generated from the issuer certificate alone which can then be
3105 passed to OCSP_id_issuer_cmp().
3108 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3109 ASN1 modules to export functions returning ASN1_ITEM pointers
3110 instead of the ASN1_ITEM structures themselves. This adds several
3111 new macros which allow the underlying ASN1 function/structure to
3112 be accessed transparently. As a result code should not use ASN1_ITEM
3113 references directly (such as &X509_it) but instead use the relevant
3114 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3115 use of the new ASN1 code on platforms where exporting structures
3116 is problematical (for example in shared libraries) but exporting
3117 functions returning pointers to structures is not.
3120 *) Add support for overriding the generation of SSL/TLS session IDs.
3121 These callbacks can be registered either in an SSL_CTX or per SSL.
3122 The purpose of this is to allow applications to control, if they wish,
3123 the arbitrary values chosen for use as session IDs, particularly as it
3124 can be useful for session caching in multiple-server environments. A
3125 command-line switch for testing this (and any client code that wishes
3126 to use such a feature) has been added to "s_server".
3127 [Geoff Thorpe, Lutz Jaenicke]
3129 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3130 of the form '#if defined(...) || defined(...) || ...' and
3131 '#if !defined(...) && !defined(...) && ...'. This also avoids
3132 the growing number of special cases it was previously handling.
3135 *) Make all configuration macros available for application by making
3136 sure they are available in opensslconf.h, by giving them names starting
3137 with "OPENSSL_" to avoid conflicts with other packages and by making
3138 sure e_os2.h will cover all platform-specific cases together with
3140 Additionally, it is now possible to define configuration/platform-
3141 specific names (called "system identities"). In the C code, these
3142 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3143 macro with the name beginning with "OPENSSL_SYS_", which is determined
3144 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3148 *) New option -set_serial to 'req' and 'x509' this allows the serial
3149 number to use to be specified on the command line. Previously self
3150 signed certificates were hard coded with serial number 0 and the
3151 CA options of 'x509' had to use a serial number in a file which was
3155 *) New options to 'ca' utility to support V2 CRL entry extensions.
3156 Currently CRL reason, invalidity date and hold instruction are
3157 supported. Add new CRL extensions to V3 code and some new objects.
3160 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3161 disable standard block padding (aka PKCS#5 padding) in the EVP
3162 API, which was previously mandatory. This means that the data is
3163 not padded in any way and so the total length much be a multiple
3164 of the block size, otherwise an error occurs.
3167 *) Initial (incomplete) OCSP SSL support.
3170 *) New function OCSP_parse_url(). This splits up a URL into its host,
3171 port and path components: primarily to parse OCSP URLs. New -url
3172 option to ocsp utility.
3175 *) New nonce behavior. The return value of OCSP_check_nonce() now
3176 reflects the various checks performed. Applications can decide
3177 whether to tolerate certain situations such as an absent nonce
3178 in a response when one was present in a request: the ocsp application
3179 just prints out a warning. New function OCSP_add1_basic_nonce()
3180 this is to allow responders to include a nonce in a response even if
3181 the request is nonce-less.
3184 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3185 skipped when using openssl x509 multiple times on a single input file,
3186 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3189 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3190 set string type: to handle setting ASN1_TIME structures. Fix ca
3191 utility to correctly initialize revocation date of CRLs.
3194 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3195 the clients preferred ciphersuites and rather use its own preferences.
3196 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3197 Internet Explorer by ensuring unchanged hash method during stepup.
3198 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3201 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3202 to aes and add a new 'exist' option to print out symbols that don't
3206 *) Additional options to ocsp utility to allow flags to be set and
3207 additional certificates supplied.
3210 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3211 OCSP client a number of certificate to only verify the response
3215 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3216 handle the new API. Currently only ECB, CBC modes supported. Add new
3219 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3220 Encryption Standard (AES) Ciphersuites for Transport Layer
3221 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3222 not enabled by default and were not part of the "ALL" ciphersuite
3223 alias because they were not yet official; they could be
3224 explicitly requested by specifying the "AESdraft" ciphersuite
3225 group alias. In the final release of OpenSSL 0.9.7, the group
3226 alias is called "AES" and is part of "ALL".)
3227 [Ben Laurie, Steve Henson, Bodo Moeller]
3229 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3230 request to response.
3233 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3234 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3235 extract information from a certificate request. OCSP_response_create()
3236 creates a response and optionally adds a basic response structure.
3237 OCSP_basic_add1_status() adds a complete single response to a basic
3238 response and returns the OCSP_SINGLERESP structure just added (to allow
3239 extensions to be included for example). OCSP_basic_add1_cert() adds a
3240 certificate to a basic response and OCSP_basic_sign() signs a basic
3241 response with various flags. New helper functions ASN1_TIME_check()
3242 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3243 (converts ASN1_TIME to GeneralizedTime).
3246 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3247 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3248 structure from a certificate. X509_pubkey_digest() digests the public_key
3249 contents: this is used in various key identifiers.
3252 *) Make sk_sort() tolerate a NULL argument.
3253 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3255 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3256 passed by the function are trusted implicitly. If any of them signed the
3257 response then it is assumed to be valid and is not verified.
3260 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3261 to data. This was previously part of the PKCS7 ASN1 code. This
3262 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3263 [Steve Henson, reported by Kenneth R. Robinette
3264 <support@securenetterm.com>]
3266 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3267 routines: without these tracing memory leaks is very painful.
3268 Fix leaks in PKCS12 and PKCS7 routines.
3271 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3272 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3273 effectively meant GeneralizedTime would never be used. Now it
3274 is initialised to -1 but X509_time_adj() now has to check the value
3275 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3276 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3277 [Steve Henson, reported by Kenneth R. Robinette
3278 <support@securenetterm.com>]
3280 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3281 result in a zero length in the ASN1_INTEGER structure which was
3282 not consistent with the structure when d2i_ASN1_INTEGER() was used
3283 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3284 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3285 where it did not print out a minus for negative ASN1_INTEGER.
3288 *) Add summary printout to ocsp utility. The various functions which
3289 convert status values to strings have been renamed to:
3290 OCSP_response_status_str(), OCSP_cert_status_str() and
3291 OCSP_crl_reason_str() and are no longer static. New options
3292 to verify nonce values and to disable verification. OCSP response
3293 printout format cleaned up.
3296 *) Add additional OCSP certificate checks. These are those specified
3297 in RFC2560. This consists of two separate checks: the CA of the
3298 certificate being checked must either be the OCSP signer certificate
3299 or the issuer of the OCSP signer certificate. In the latter case the
3300 OCSP signer certificate must contain the OCSP signing extended key
3301 usage. This check is performed by attempting to match the OCSP
3302 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3303 in the OCSP_CERTID structures of the response.
3306 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3307 and related routines. This uses the standard OpenSSL certificate
3308 verify routines to perform initial checks (just CA validity) and
3309 to obtain the certificate chain. Then additional checks will be
3310 performed on the chain. Currently the root CA is checked to see
3311 if it is explicitly trusted for OCSP signing. This is used to set
3312 a root CA as a global signing root: that is any certificate that
3313 chains to that CA is an acceptable OCSP signing certificate.
3316 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3317 extensions from a separate configuration file.
3318 As when reading extensions from the main configuration file,
3319 the '-extensions ...' option may be used for specifying the
3321 [Massimiliano Pala <madwolf@comune.modena.it>]
3323 *) New OCSP utility. Allows OCSP requests to be generated or
3324 read. The request can be sent to a responder and the output
3325 parsed, outputed or printed in text form. Not complete yet:
3326 still needs to check the OCSP response validity.
3329 *) New subcommands for 'openssl ca':
3330 'openssl ca -status <serial>' prints the status of the cert with
3331 the given serial number (according to the index file).
3332 'openssl ca -updatedb' updates the expiry status of certificates
3334 [Massimiliano Pala <madwolf@comune.modena.it>]
3336 *) New '-newreq-nodes' command option to CA.pl. This is like
3337 '-newreq', but calls 'openssl req' with the '-nodes' option
3338 so that the resulting key is not encrypted.
3339 [Damien Miller <djm@mindrot.org>]
3341 *) New configuration for the GNU Hurd.
3342 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3344 *) Initial code to implement OCSP basic response verify. This
3345 is currently incomplete. Currently just finds the signer's
3346 certificate and verifies the signature on the response.
3349 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3350 value of OPENSSLDIR. This is available via the new '-d' option
3351 to 'openssl version', and is also included in 'openssl version -a'.
3354 *) Allowing defining memory allocation callbacks that will be given
3355 file name and line number information in additional arguments
3356 (a const char* and an int). The basic functionality remains, as
3357 well as the original possibility to just replace malloc(),
3358 realloc() and free() by functions that do not know about these
3359 additional arguments. To register and find out the current
3360 settings for extended allocation functions, the following
3361 functions are provided:
3363 CRYPTO_set_mem_ex_functions
3364 CRYPTO_set_locked_mem_ex_functions
3365 CRYPTO_get_mem_ex_functions
3366 CRYPTO_get_locked_mem_ex_functions
3368 These work the same way as CRYPTO_set_mem_functions and friends.
3369 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3370 extended allocation function is enabled.
3371 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3372 a conventional allocation function is enabled.
3373 [Richard Levitte, Bodo Moeller]
3375 *) Finish off removing the remaining LHASH function pointer casts.
3376 There should no longer be any prototype-casting required when using
3377 the LHASH abstraction, and any casts that remain are "bugs". See
3378 the callback types and macros at the head of lhash.h for details
3379 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3382 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3383 If /dev/[u]random devices are not available or do not return enough
3384 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3386 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3387 /etc/entropy will be queried once each in this sequence, quering stops
3388 when enough entropy was collected without querying more sockets.
3391 *) Change the Unix RAND_poll() variant to be able to poll several
3392 random devices, as specified by DEVRANDOM, until a sufficient amount
3393 of data has been collected. We spend at most 10 ms on each file
3394 (select timeout) and read in non-blocking mode. DEVRANDOM now
3395 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3396 (previously it was just the string "/dev/urandom"), so on typical
3397 platforms the 10 ms delay will never occur.
3398 Also separate out the Unix variant to its own file, rand_unix.c.
3399 For VMS, there's a currently-empty rand_vms.c.
3402 *) Move OCSP client related routines to ocsp_cl.c. These
3403 provide utility functions which an application needing
3404 to issue a request to an OCSP responder and analyse the
3405 response will typically need: as opposed to those which an
3406 OCSP responder itself would need which will be added later.
3408 OCSP_request_sign() signs an OCSP request with an API similar
3409 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3410 response. OCSP_response_get1_basic() extracts basic response
3411 from response. OCSP_resp_find_status(): finds and extracts status
3412 information from an OCSP_CERTID structure (which will be created
3413 when the request structure is built). These are built from lower
3414 level functions which work on OCSP_SINGLERESP structures but
3415 wont normally be used unless the application wishes to examine
3416 extensions in the OCSP response for example.
3418 Replace nonce routines with a pair of functions.
3419 OCSP_request_add1_nonce() adds a nonce value and optionally
3420 generates a random value. OCSP_check_nonce() checks the
3421 validity of the nonce in an OCSP response.
3424 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3425 This doesn't copy the supplied OCSP_CERTID and avoids the
3426 need to free up the newly created id. Change return type
3427 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3428 This can then be used to add extensions to the request.
3429 Deleted OCSP_request_new(), since most of its functionality
3430 is now in OCSP_REQUEST_new() (and the case insensitive name
3431 clash) apart from the ability to set the request name which
3432 will be added elsewhere.
3435 *) Update OCSP API. Remove obsolete extensions argument from
3436 various functions. Extensions are now handled using the new
3437 OCSP extension code. New simple OCSP HTTP function which
3438 can be used to send requests and parse the response.
3441 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3442 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3443 uses the special reorder version of SET OF to sort the attributes
3444 and reorder them to match the encoded order. This resolves a long
3445 standing problem: a verify on a PKCS7 structure just after signing
3446 it used to fail because the attribute order did not match the
3447 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3448 it uses the received order. This is necessary to tolerate some broken
3449 software that does not order SET OF. This is handled by encoding
3450 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3451 to produce the required SET OF.
3454 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3455 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3456 files to get correct declarations of the ASN.1 item variables.
3459 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3460 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3461 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3462 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3463 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3464 ASN1_ITEM and no wrapper functions.
3467 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3468 replace the old function pointer based I/O routines. Change most of
3469 the *_d2i_bio() and *_d2i_fp() functions to use these.
3472 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3473 lines, recognice more "algorithms" that can be deselected, and make
3474 it complain about algorithm deselection that isn't recognised.
3477 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3478 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3479 to use new functions. Add NO_ASN1_OLD which can be set to remove
3480 some old style ASN1 functions: this can be used to determine if old
3481 code will still work when these eventually go away.
3484 *) New extension functions for OCSP structures, these follow the
3485 same conventions as certificates and CRLs.
3488 *) New function X509V3_add1_i2d(). This automatically encodes and
3489 adds an extension. Its behaviour can be customised with various
3490 flags to append, replace or delete. Various wrappers added for
3491 certifcates and CRLs.
3494 *) Fix to avoid calling the underlying ASN1 print routine when
3495 an extension cannot be parsed. Correct a typo in the
3496 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3499 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3500 entries for variables.
3503 *) Add functionality to apps/openssl.c for detecting locking
3504 problems: As the program is single-threaded, all we have
3505 to do is register a locking callback using an array for
3506 storing which locks are currently held by the program.
3509 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3510 SSL_get_ex_data_X509_STORE_idx(), which is used in
3511 ssl_verify_cert_chain() and thus can be called at any time
3512 during TLS/SSL handshakes so that thread-safety is essential.
3513 Unfortunately, the ex_data design is not at all suited
3514 for multi-threaded use, so it probably should be abolished.
3517 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3518 [Broadcom, tweaked and integrated by Geoff Thorpe]
3520 *) Move common extension printing code to new function
3521 X509V3_print_extensions(). Reorganise OCSP print routines and
3522 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3525 *) New function X509_signature_print() to remove duplication in some
3529 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3530 set (this was treated exactly the same as SET OF previously). This
3531 is used to reorder the STACK representing the structure to match the
3532 encoding. This will be used to get round a problem where a PKCS7
3533 structure which was signed could not be verified because the STACK
3534 order did not reflect the encoded order.
3537 *) Reimplement the OCSP ASN1 module using the new code.
3540 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3541 for its ASN1 operations. The old style function pointers still exist
3542 for now but they will eventually go away.
3545 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3546 completely replaces the old ASN1 functionality with a table driven
3547 encoder and decoder which interprets an ASN1_ITEM structure describing
3548 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3549 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3550 has also been converted to the new form.
3553 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3554 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3555 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3556 for negative moduli.
3559 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3560 of not touching the result's sign bit.
3563 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3567 *) Changed the LHASH code to use prototypes for callbacks, and created
3568 macros to declare and implement thin (optionally static) functions
3569 that provide type-safety and avoid function pointer casting for the
3570 type-specific callbacks.
3573 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3575 [Veers Staats <staatsvr@asc.hpc.mil>,
3576 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3578 *) Reformat the FAQ so the different questions and answers can be divided
3579 in sections depending on the subject.
3582 *) Have the zlib compression code load ZLIB.DLL dynamically under
3586 *) New function BN_mod_sqrt for computing square roots modulo a prime
3587 (using the probabilistic Tonelli-Shanks algorithm unless
3588 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3589 be handled deterministically).
3590 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3592 *) Make BN_mod_inverse faster by explicitly handling small quotients
3593 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3594 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3597 *) New function BN_kronecker.
3600 *) Fix BN_gcd so that it works on negative inputs; the result is
3601 positive unless both parameters are zero.
3602 Previously something reasonably close to an infinite loop was
3603 possible because numbers could be growing instead of shrinking
3604 in the implementation of Euclid's algorithm.
3607 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3608 sign of the number in question.
3610 Fix BN_is_word(a,w) to work correctly for w == 0.
3612 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3613 because its test if the absolute value of 'a' equals 'w'.
3614 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3615 it exists mostly for use in the implementations of BN_is_zero(),
3616 BN_is_one(), and BN_is_word().
3619 *) New function BN_swap.
3622 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3623 the exponentiation functions are more likely to produce reasonable
3624 results on negative inputs.
3627 *) Change BN_mod_mul so that the result is always non-negative.
3628 Previously, it could be negative if one of the factors was negative;
3629 I don't think anyone really wanted that behaviour.
3632 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3633 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3634 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3635 and add new functions:
3644 BN_mod_lshift1_quick
3648 These functions always generate non-negative results.
3650 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3651 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3653 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3654 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3655 be reduced modulo m.
3656 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3659 The following entry accidentily appeared in the CHANGES file
3660 distributed with OpenSSL 0.9.7. The modifications described in
3661 it do *not* apply to OpenSSL 0.9.7.
3663 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3664 was actually never needed) and in BN_mul(). The removal in BN_mul()
3665 required a small change in bn_mul_part_recursive() and the addition
3666 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3667 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3668 bn_sub_words() and bn_add_words() except they take arrays with
3673 *) In 'openssl passwd', verify passwords read from the terminal
3674 unless the '-salt' option is used (which usually means that
3675 verification would just waste user's time since the resulting
3676 hash is going to be compared with some given password hash)
3677 or the new '-noverify' option is used.
3679 This is an incompatible change, but it does not affect
3680 non-interactive use of 'openssl passwd' (passwords on the command
3681 line, '-stdin' option, '-in ...' option) and thus should not
3685 *) Remove all references to RSAref, since there's no more need for it.
3688 *) Make DSO load along a path given through an environment variable
3689 (SHLIB_PATH) with shl_load().
3692 *) Constify the ENGINE code as a result of BIGNUM constification.
3693 Also constify the RSA code and most things related to it. In a
3694 few places, most notable in the depth of the ASN.1 code, ugly
3695 casts back to non-const were required (to be solved at a later
3699 *) Make it so the openssl application has all engines loaded by default.
3702 *) Constify the BIGNUM routines a little more.
3705 *) Add the following functions:
3707 ENGINE_load_cswift()
3709 ENGINE_load_atalla()
3711 ENGINE_load_builtin_engines()
3713 That way, an application can itself choose if external engines that
3714 are built-in in OpenSSL shall ever be used or not. The benefit is
3715 that applications won't have to be linked with libdl or other dso
3716 libraries unless it's really needed.
3718 Changed 'openssl engine' to load all engines on demand.
3719 Changed the engine header files to avoid the duplication of some
3720 declarations (they differed!).
3723 *) 'openssl engine' can now list capabilities.
3726 *) Better error reporting in 'openssl engine'.
3729 *) Never call load_dh_param(NULL) in s_server.
3732 *) Add engine application. It can currently list engines by name and
3733 identity, and test if they are actually available.
3736 *) Improve RPM specification file by forcing symbolic linking and making
3737 sure the installed documentation is also owned by root.root.
3738 [Damien Miller <djm@mindrot.org>]
3740 *) Give the OpenSSL applications more possibilities to make use of
3741 keys (public as well as private) handled by engines.
3744 *) Add OCSP code that comes from CertCo.
3747 *) Add VMS support for the Rijndael code.
3750 *) Added untested support for Nuron crypto accelerator.
3753 *) Add support for external cryptographic devices. This code was
3754 previously distributed separately as the "engine" branch.
3755 [Geoff Thorpe, Richard Levitte]
3757 *) Rework the filename-translation in the DSO code. It is now possible to
3758 have far greater control over how a "name" is turned into a filename
3759 depending on the operating environment and any oddities about the
3760 different shared library filenames on each system.
3763 *) Support threads on FreeBSD-elf in Configure.
3766 *) Fix for SHA1 assembly problem with MASM: it produces
3767 warnings about corrupt line number information when assembling
3768 with debugging information. This is caused by the overlapping
3770 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3773 NCONF_get_number() has no error checking at all. As a replacement,
3774 NCONF_get_number_e() is defined (_e for "error checking") and is
3775 promoted strongly. The old NCONF_get_number is kept around for
3776 binary backward compatibility.
3777 Make it possible for methods to load from something other than a BIO,
3778 by providing a function pointer that is given a name instead of a BIO.
3779 For example, this could be used to load configuration data from an
3783 *) Fix for non blocking accept BIOs. Added new I/O special reason
3784 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3785 with non blocking I/O was not possible because no retry code was
3786 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3790 *) Added the beginnings of Rijndael support.
3793 *) Fix for bug in DirectoryString mask setting. Add support for
3794 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3795 to allow certificate printing to more controllable, additional
3796 'certopt' option to 'x509' to allow new printing options to be
3800 *) Clean old EAY MD5 hack from e_os.h.
3803 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3805 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3806 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3807 [Joe Orton, Steve Henson]
3809 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3811 *) Fix additional bug revealed by the NISCC test suite:
3813 Stop bug triggering large recursion when presented with
3814 certain ASN.1 tags (CVE-2003-0851)
3817 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3819 *) Fix various bugs revealed by running the NISCC test suite:
3821 Stop out of bounds reads in the ASN1 code when presented with
3822 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3824 If verify callback ignores invalid public key errors don't try to check
3825 certificate signature with the NULL public key.
3829 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3830 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3834 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3835 extra data after the compression methods not only for TLS 1.0
3836 but also for SSL 3.0 (as required by the specification).
3837 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3839 *) Change X509_certificate_type() to mark the key as exported/exportable
3840 when it's 512 *bits* long, not 512 bytes.
3843 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3845 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3846 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3847 a protocol version number mismatch like a decryption error
3848 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3851 *) Turn on RSA blinding by default in the default implementation
3852 to avoid a timing attack. Applications that don't want it can call
3853 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3854 They would be ill-advised to do so in most cases.
3855 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3857 *) Change RSA blinding code so that it works when the PRNG is not
3858 seeded (in this case, the secret RSA exponent is abused as
3859 an unpredictable seed -- if it is not unpredictable, there
3860 is no point in blinding anyway). Make RSA blinding thread-safe
3861 by remembering the creator's thread ID in rsa->blinding and
3862 having all other threads use local one-time blinding factors
3863 (this requires more computation than sharing rsa->blinding, but
3864 avoids excessive locking; and if an RSA object is not shared
3865 between threads, blinding will still be very fast).
3868 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3870 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3871 via timing by performing a MAC computation even if incorrrect
3872 block cipher padding has been found. This is a countermeasure
3873 against active attacks where the attacker has to distinguish
3874 between bad padding and a MAC verification error. (CVE-2003-0078)
3876 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3877 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3878 Martin Vuagnoux (EPFL, Ilion)]
3880 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3882 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3883 memory from it's contents. This is done with a counter that will
3884 place alternating values in each byte. This can be used to solve
3885 two issues: 1) the removal of calls to memset() by highly optimizing
3886 compilers, and 2) cleansing with other values than 0, since those can
3887 be read through on certain media, for example a swap space on disk.
3890 *) Bugfix: client side session caching did not work with external caching,
3891 because the session->cipher setting was not restored when reloading
3892 from the external cache. This problem was masked, when
3893 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3894 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3897 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3898 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3899 [Zeev Lieber <zeev-l@yahoo.com>]
3901 *) Undo an undocumented change introduced in 0.9.6e which caused
3902 repeated calls to OpenSSL_add_all_ciphers() and
3903 OpenSSL_add_all_digests() to be ignored, even after calling
3907 *) Change the default configuration reader to deal with last line not
3908 being properly terminated.
3911 *) Change X509_NAME_cmp() so it applies the special rules on handling
3912 DN values that are of type PrintableString, as well as RDNs of type
3913 emailAddress where the value has the type ia5String.
3914 [stefank@valicert.com via Richard Levitte]
3916 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3917 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3918 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3919 the bitwise-OR of the two for use by the majority of applications
3920 wanting this behaviour, and update the docs. The documented
3921 behaviour and actual behaviour were inconsistent and had been
3922 changing anyway, so this is more a bug-fix than a behavioural
3924 [Geoff Thorpe, diagnosed by Nadav Har'El]
3926 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3927 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3930 *) Fix initialization code race conditions in
3931 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3932 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3933 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3934 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3935 ssl2_get_cipher_by_char(),
3936 ssl3_get_cipher_by_char().
3937 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3939 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3940 the cached sessions are flushed, as the remove_cb() might use ex_data
3941 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3942 (see [openssl.org #212]).
3943 [Geoff Thorpe, Lutz Jaenicke]
3945 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3946 length, instead of the encoding length to d2i_ASN1_OBJECT.
3949 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3951 *) [In 0.9.6g-engine release:]
3952 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3953 [Lynn Gazis <lgazis@rainbow.com>]
3955 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3957 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3958 and get fix the header length calculation.
3959 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3960 Alon Kantor <alonk@checkpoint.com> (and others),
3963 *) Use proper error handling instead of 'assertions' in buffer
3964 overflow checks added in 0.9.6e. This prevents DoS (the
3965 assertions could call abort()).
3966 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3968 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3970 *) Add various sanity checks to asn1_get_length() to reject
3971 the ASN1 length bytes if they exceed sizeof(long), will appear
3972 negative or the content length exceeds the length of the
3974 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3976 *) Fix cipher selection routines: ciphers without encryption had no flags
3977 for the cipher strength set and where therefore not handled correctly
3978 by the selection routines (PR #130).
3981 *) Fix EVP_dsa_sha macro.
3985 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3986 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3987 that was added in OpenSSL 0.9.6d.
3989 As the countermeasure turned out to be incompatible with some
3990 broken SSL implementations, the new option is part of SSL_OP_ALL.
3991 SSL_OP_ALL is usually employed when compatibility with weird SSL
3992 implementations is desired (e.g. '-bugs' option to 's_client' and
3993 's_server'), so the new option is automatically set in many
3997 *) Changes in security patch:
3999 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4000 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4001 Air Force Materiel Command, USAF, under agreement number
4004 *) Add various sanity checks to asn1_get_length() to reject
4005 the ASN1 length bytes if they exceed sizeof(long), will appear
4006 negative or the content length exceeds the length of the
4007 supplied buffer. (CVE-2002-0659)
4008 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4010 *) Assertions for various potential buffer overflows, not known to
4012 [Ben Laurie (CHATS)]
4014 *) Various temporary buffers to hold ASCII versions of integers were
4015 too small for 64 bit platforms. (CVE-2002-0655)
4016 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4018 *) Remote buffer overflow in SSL3 protocol - an attacker could
4019 supply an oversized session ID to a client. (CVE-2002-0656)
4020 [Ben Laurie (CHATS)]
4022 *) Remote buffer overflow in SSL2 protocol - an attacker could
4023 supply an oversized client master key. (CVE-2002-0656)
4024 [Ben Laurie (CHATS)]
4026 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4028 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4029 encoded as NULL) with id-dsa-with-sha1.
4030 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4032 *) Check various X509_...() return values in apps/req.c.
4033 [Nils Larsch <nla@trustcenter.de>]
4035 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4036 an end-of-file condition would erronously be flagged, when the CRLF
4037 was just at the end of a processed block. The bug was discovered when
4038 processing data through a buffering memory BIO handing the data to a
4039 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4040 <ptsekov@syntrex.com> and Nedelcho Stanev.
4043 *) Implement a countermeasure against a vulnerability recently found
4044 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4045 before application data chunks to avoid the use of known IVs
4046 with data potentially chosen by the attacker.
4049 *) Fix length checks in ssl3_get_client_hello().
4052 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4053 to prevent ssl3_read_internal() from incorrectly assuming that
4054 ssl3_read_bytes() found application data while handshake
4055 processing was enabled when in fact s->s3->in_read_app_data was
4056 merely automatically cleared during the initial handshake.
4057 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4059 *) Fix object definitions for Private and Enterprise: they were not
4060 recognized in their shortname (=lowercase) representation. Extend
4061 obj_dat.pl to issue an error when using undefined keywords instead
4062 of silently ignoring the problem (Svenning Sorensen
4063 <sss@sss.dnsalias.net>).
4066 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4067 generators, i.e. generators other than 2 and 5. (Previously, the
4068 code did not properly initialise the 'add' and 'rem' values to
4069 BN_generate_prime().)
4071 In the new general case, we do not insist that 'generator' is
4072 actually a primitive root: This requirement is rather pointless;
4073 a generator of the order-q subgroup is just as good, if not
4077 *) Map new X509 verification errors to alerts. Discovered and submitted by
4078 Tom Wu <tom@arcot.com>.
4081 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4082 returning non-zero before the data has been completely received
4083 when using non-blocking I/O.
4084 [Bodo Moeller; problem pointed out by John Hughes]
4086 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4087 [Ben Laurie, Lutz Jaenicke]
4089 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4090 Yoram Zahavi <YoramZ@gilian.com>).
4093 *) Add information about CygWin 1.3 and on, and preserve proper
4094 configuration for the versions before that.
4095 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4097 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4098 check whether we deal with a copy of a session and do not delete from
4099 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4100 <izhar@checkpoint.com>.
4103 *) Do not store session data into the internal session cache, if it
4104 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4105 flag is set). Proposed by Aslam <aslam@funk.com>.
4108 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4112 *) [In 0.9.6d-engine release:]
4113 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4114 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4116 *) Add the configuration target linux-s390x.
4117 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4119 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4120 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4121 variable as an indication that a ClientHello message has been
4122 received. As the flag value will be lost between multiple
4123 invocations of ssl3_accept when using non-blocking I/O, the
4124 function may not be aware that a handshake has actually taken
4125 place, thus preventing a new session from being added to the
4128 To avoid this problem, we now set s->new_session to 2 instead of
4129 using a local variable.
4130 [Lutz Jaenicke, Bodo Moeller]
4132 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4133 if the SSL_R_LENGTH_MISMATCH error is detected.
4134 [Geoff Thorpe, Bodo Moeller]
4136 *) New 'shared_ldflag' column in Configure platform table.
4139 *) Fix EVP_CIPHER_mode macro.
4140 ["Dan S. Camper" <dan@bti.net>]
4142 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4143 type, we must throw them away by setting rr->length to 0.
4144 [D P Chang <dpc@qualys.com>]
4146 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4148 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4149 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4150 worked incorrectly for those cases where range = 10..._2 and
4151 3*range is two bits longer than range.)
4154 *) Only add signing time to PKCS7 structures if it is not already
4158 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4159 OBJ_ld_ce should be OBJ_id_ce.
4160 Also some ip-pda OIDs in crypto/objects/objects.txt were
4161 incorrect (cf. RFC 3039).
4162 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4164 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4165 returns early because it has nothing to do.
4166 [Andy Schneider <andy.schneider@bjss.co.uk>]
4168 *) [In 0.9.6c-engine release:]
4169 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4170 [Andy Schneider <andy.schneider@bjss.co.uk>]
4172 *) [In 0.9.6c-engine release:]
4173 Add support for Cryptographic Appliance's keyserver technology.
4174 (Use engine 'keyclient')
4175 [Cryptographic Appliances and Geoff Thorpe]
4177 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4178 is called via tools/c89.sh because arguments have to be
4179 rearranged (all '-L' options must appear before the first object
4181 [Richard Shapiro <rshapiro@abinitio.com>]
4183 *) [In 0.9.6c-engine release:]
4184 Add support for Broadcom crypto accelerator cards, backported
4186 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4188 *) [In 0.9.6c-engine release:]
4189 Add support for SureWare crypto accelerator cards from
4190 Baltimore Technologies. (Use engine 'sureware')
4191 [Baltimore Technologies and Mark Cox]
4193 *) [In 0.9.6c-engine release:]
4194 Add support for crypto accelerator cards from Accelerated
4195 Encryption Processing, www.aep.ie. (Use engine 'aep')
4196 [AEP Inc. and Mark Cox]
4198 *) Add a configuration entry for gcc on UnixWare.
4199 [Gary Benson <gbenson@redhat.com>]
4201 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4202 messages are stored in a single piece (fixed-length part and
4203 variable-length part combined) and fix various bugs found on the way.
4206 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4207 instead. BIO_gethostbyname() does not know what timeouts are
4208 appropriate, so entries would stay in cache even when they have
4210 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4212 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4213 faced with a pathologically small ClientHello fragment that does
4214 not contain client_version: Instead of aborting with an error,
4215 simply choose the highest available protocol version (i.e.,
4216 TLS 1.0 unless it is disabled). In practice, ClientHello
4217 messages are never sent like this, but this change gives us
4218 strictly correct behaviour at least for TLS.
4221 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4222 never resets s->method to s->ctx->method when called from within
4223 one of the SSL handshake functions.
4224 [Bodo Moeller; problem pointed out by Niko Baric]
4226 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4227 (sent using the client's version number) if client_version is
4228 smaller than the protocol version in use. Also change
4229 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4230 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4231 the client will at least see that alert.
4234 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4238 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4239 client receives HelloRequest while in a handshake.
4240 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4242 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4243 should end in 'break', not 'goto end' which circuments various
4244 cleanups done in state SSL_ST_OK. But session related stuff
4245 must be disabled for SSL_ST_OK in the case that we just sent a
4248 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4249 before just sending a HelloRequest.
4250 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4252 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4253 reveal whether illegal block cipher padding was found or a MAC
4254 verification error occured. (Neither SSLerr() codes nor alerts
4255 are directly visible to potential attackers, but the information
4256 may leak via logfiles.)
4258 Similar changes are not required for the SSL 2.0 implementation
4259 because the number of padding bytes is sent in clear for SSL 2.0,
4260 and the extra bytes are just ignored. However ssl/s2_pkt.c
4261 failed to verify that the purported number of padding bytes is in
4265 *) Add OpenUNIX-8 support including shared libraries
4266 (Boyd Lynn Gerber <gerberb@zenez.com>).
4269 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4270 'wristwatch attack' using huge encoding parameters (cf.
4271 James H. Manger's CRYPTO 2001 paper). Note that the
4272 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4273 encoding parameters and hence was not vulnerable.
4276 *) BN_sqr() bug fix.
4277 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4279 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4280 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4281 followed by modular reduction.
4282 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4284 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4285 equivalent based on BN_pseudo_rand() instead of BN_rand().
4288 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4289 This function was broken, as the check for a new client hello message
4290 to handle SGC did not allow these large messages.
4291 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4294 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4297 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4298 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4301 *) Rework the configuration and shared library support for Tru64 Unix.
4302 The configuration part makes use of modern compiler features and
4303 still retains old compiler behavior for those that run older versions
4304 of the OS. The shared library support part includes a variant that
4305 uses the RPATH feature, and is available through the special
4306 configuration target "alpha-cc-rpath", which will never be selected
4308 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4310 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4311 with the same message size as in ssl3_get_certificate_request().
4312 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4313 messages might inadvertently be reject as too long.
4314 [Petr Lampa <lampa@fee.vutbr.cz>]
4316 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4319 *) Modified SSL library such that the verify_callback that has been set
4320 specificly for an SSL object with SSL_set_verify() is actually being
4321 used. Before the change, a verify_callback set with this function was
4322 ignored and the verify_callback() set in the SSL_CTX at the time of
4323 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4324 to allow the necessary settings.
4327 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4328 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4329 done automatically (in contradiction to the requirements of the C
4330 standard). This made problems when used from OpenSSH.
4333 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4334 dh->length and always used
4336 BN_rand_range(priv_key, dh->p).
4338 BN_rand_range() is not necessary for Diffie-Hellman, and this
4339 specific range makes Diffie-Hellman unnecessarily inefficient if
4340 dh->length (recommended exponent length) is much smaller than the
4341 length of dh->p. We could use BN_rand_range() if the order of
4342 the subgroup was stored in the DH structure, but we only have
4347 BN_rand(priv_key, l, ...)
4349 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4355 RSA_eay_public_encrypt
4356 RSA_eay_private_decrypt
4357 RSA_eay_private_encrypt (signing)
4358 RSA_eay_public_decrypt (signature verification)
4360 (default implementations for RSA_public_encrypt,
4361 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4362 always reject numbers >= n.
4365 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4366 to synchronize access to 'locking_thread'. This is necessary on
4367 systems where access to 'locking_thread' (an 'unsigned long'
4368 variable) is not atomic.
4371 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4372 *before* setting the 'crypto_lock_rand' flag. The previous code had
4373 a race condition if 0 is a valid thread ID.
4374 [Travis Vitek <vitek@roguewave.com>]
4376 *) Add support for shared libraries under Irix.
4377 [Albert Chin-A-Young <china@thewrittenword.com>]
4379 *) Add configuration option to build on Linux on both big-endian and
4381 [Ralf Baechle <ralf@uni-koblenz.de>]
4383 *) Add the possibility to create shared libraries on HP-UX.
4386 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4388 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4389 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4390 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4391 PRNG state recovery was possible based on the output of
4392 one PRNG request appropriately sized to gain knowledge on
4393 'md' followed by enough consecutive 1-byte PRNG requests
4394 to traverse all of 'state'.
4396 1. When updating 'md_local' (the current thread's copy of 'md')
4397 during PRNG output generation, hash all of the previous
4398 'md_local' value, not just the half used for PRNG output.
4400 2. Make the number of bytes from 'state' included into the hash
4401 independent from the number of PRNG bytes requested.
4403 The first measure alone would be sufficient to avoid
4404 Markku-Juhani's attack. (Actually it had never occurred
4405 to me that the half of 'md_local' used for chaining was the
4406 half from which PRNG output bytes were taken -- I had always
4407 assumed that the secret half would be used.) The second
4408 measure makes sure that additional data from 'state' is never
4409 mixed into 'md_local' in small portions; this heuristically
4410 further strengthens the PRNG.
4413 *) Fix crypto/bn/asm/mips3.s.
4416 *) When only the key is given to "enc", the IV is undefined. Print out
4417 an error message in this case.
4420 *) Handle special case when X509_NAME is empty in X509 printing routines.
4423 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4424 positive and less than q.
4427 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4428 used: it isn't thread safe and the add_lock_callback should handle
4430 [Paul Rose <Paul.Rose@bridge.com>]
4432 *) Verify that incoming data obeys the block size in
4433 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4437 [Ulf Möller, Bodo Möller]
4439 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4440 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4441 when fixing the server behaviour for backwards-compatible 'client
4442 hello' messages. (Note that the attack is impractical against
4443 SSL 3.0 and TLS 1.0 anyway because length and version checking
4444 means that the probability of guessing a valid ciphertext is
4445 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4448 Before 0.9.5, the countermeasure (hide the error by generating a
4449 random 'decryption result') did not work properly because
4450 ERR_clear_error() was missing, meaning that SSL_get_error() would
4451 detect the supposedly ignored error.
4453 Both problems are now fixed.
4456 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4457 (previously it was 1024).
4460 *) Fix for compatibility mode trust settings: ignore trust settings
4461 unless some valid trust or reject settings are present.
4464 *) Fix for blowfish EVP: its a variable length cipher.
4467 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4468 parameters in DSA public key structures and return an error in the
4469 DSA routines if parameters are absent.
4472 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4473 in the current directory if neither $RANDFILE nor $HOME was set.
4474 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4475 caused some confusion to Windows users who haven't defined $HOME.
4476 Thus RAND_file_name() is changed again: e_os.h can define a
4477 DEFAULT_HOME, which will be used if $HOME is not set.
4478 For Windows, we use "C:"; on other platforms, we still require
4479 environment variables.
4481 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4482 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4483 having multiple threads call RAND_poll() concurrently.
4486 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4487 combination of a flag and a thread ID variable.
4488 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4489 flag), *other* threads can enter ssleay_add_bytes without obeying
4490 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4491 that they do not hold after the first thread unsets add_do_not_lock).
4494 *) Change bctest again: '-x' expressions are not available in all
4498 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4500 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4501 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4503 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4504 the default extension for executables, if any. Also, make the perl
4505 scripts that use symlink() to test if it really exists and use "cp"
4506 if it doesn't. All this made OpenSSL compilable and installable in
4510 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4511 If SEQUENCE is length is indefinite just set c->slen to the total
4512 amount of data available.
4513 [Steve Henson, reported by shige@FreeBSD.org]
4514 [This change does not apply to 0.9.7.]
4516 *) Change bctest to avoid here-documents inside command substitution
4517 (workaround for FreeBSD /bin/sh bug).
4518 For compatibility with Ultrix, avoid shell functions (introduced
4519 in the bctest version that searches along $PATH).
4522 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4523 with des_encrypt() defined on some operating systems, like Solaris
4527 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4528 On the Importance of Eliminating Errors in Cryptographic
4529 Computations, J. Cryptology 14 (2001) 2, 101-119,
4530 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4533 *) MIPS assembler BIGNUM division bug fix.
4536 *) Disabled incorrect Alpha assembler code.
4539 *) Fix PKCS#7 decode routines so they correctly update the length
4540 after reading an EOC for the EXPLICIT tag.
4542 [This change does not apply to 0.9.7.]
4544 *) Fix bug in PKCS#12 key generation routines. This was triggered
4545 if a 3DES key was generated with a 0 initial byte. Include
4546 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4547 (but broken) behaviour.
4550 *) Enhance bctest to search for a working bc along $PATH and print
4552 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4554 *) Fix memory leaks in err.c: free err_data string if necessary;
4555 don't write to the wrong index in ERR_set_error_data.
4558 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4562 *) Replace rdtsc with _emit statements for VC++ version 5.
4563 [Jeremy Cooper <jeremy@baymoo.org>]
4565 *) Make it possible to reuse SSLv2 sessions.
4568 *) In copy_email() check for >= 0 as a return value for
4569 X509_NAME_get_index_by_NID() since 0 is a valid index.
4570 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4572 *) Avoid coredump with unsupported or invalid public keys by checking if
4573 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4574 PKCS7_verify() fails with non detached data.
4577 *) Don't use getenv in library functions when run as setuid/setgid.
4578 New function OPENSSL_issetugid().
4581 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4582 due to incorrect handling of multi-threading:
4584 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4586 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4588 3. Count how many times MemCheck_off() has been called so that
4589 nested use can be treated correctly. This also avoids
4590 inband-signalling in the previous code (which relied on the
4591 assumption that thread ID 0 is impossible).
4594 *) Add "-rand" option also to s_client and s_server.
4597 *) Fix CPU detection on Irix 6.x.
4598 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4599 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4601 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4604 [This change does not apply to 0.9.7.]
4606 *) Use the cached encoding of an X509_NAME structure rather than
4607 copying it. This is apparently the reason for the libsafe "errors"
4608 but the code is actually correct.
4611 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4612 Bleichenbacher's DSA attack.
4613 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4614 to be set and top=0 forces the highest bit to be set; top=-1 is new
4615 and leaves the highest bit random.
4616 [Ulf Moeller, Bodo Moeller]
4618 *) In the NCONF_...-based implementations for CONF_... queries
4619 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4620 a temporary CONF structure with the data component set to NULL
4621 (which gives segmentation faults in lh_retrieve).
4622 Instead, use NULL for the CONF pointer in CONF_get_string and
4623 CONF_get_number (which may use environment variables) and directly
4624 return NULL from CONF_get_section.
4627 *) Fix potential buffer overrun for EBCDIC.
4630 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4631 keyUsage if basicConstraints absent for a CA.
4634 *) Make SMIME_write_PKCS7() write mail header values with a format that
4635 is more generally accepted (no spaces before the semicolon), since
4636 some programs can't parse those values properly otherwise. Also make
4637 sure BIO's that break lines after each write do not create invalid
4641 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4642 macros previously used would not encode an empty SEQUENCE OF
4643 and break the signature.
4645 [This change does not apply to 0.9.7.]
4647 *) Zero the premaster secret after deriving the master secret in
4651 *) Add some EVP_add_digest_alias registrations (as found in
4652 OpenSSL_add_all_digests()) to SSL_library_init()
4653 aka OpenSSL_add_ssl_algorithms(). This provides improved
4654 compatibility with peers using X.509 certificates
4655 with unconventional AlgorithmIdentifier OIDs.
4658 *) Fix for Irix with NO_ASM.
4659 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4661 *) ./config script fixes.
4662 [Ulf Moeller, Richard Levitte]
4664 *) Fix 'openssl passwd -1'.
4667 *) Change PKCS12_key_gen_asc() so it can cope with non null
4668 terminated strings whose length is passed in the passlen
4669 parameter, for example from PEM callbacks. This was done
4670 by adding an extra length parameter to asc2uni().
4671 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4673 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4674 call failed, free the DSA structure.
4677 *) Fix to uni2asc() to cope with zero length Unicode strings.
4678 These are present in some PKCS#12 files.
4681 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4682 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4683 when writing a 32767 byte record.
4684 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4686 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4687 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4689 (RSA objects have a reference count access to which is protected
4690 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4691 so they are meant to be shared between threads.)
4692 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4693 "Reddie, Steven" <Steven.Reddie@ca.com>]
4695 *) Fix a deadlock in CRYPTO_mem_leaks().
4698 *) Use better test patterns in bntest.
4701 *) rand_win.c fix for Borland C.
4704 *) BN_rshift bugfix for n == 0.
4707 *) Add a 'bctest' script that checks for some known 'bc' bugs
4708 so that 'make test' does not abort just because 'bc' is broken.
4711 *) Store verify_result within SSL_SESSION also for client side to
4712 avoid potential security hole. (Re-used sessions on the client side
4713 always resulted in verify_result==X509_V_OK, not using the original
4714 result of the server certificate verification.)
4717 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4718 SSL3_RT_APPLICATION_DATA, return 0.
4719 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4723 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4724 releases, have been re-implemented by renaming the previous
4725 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4726 and ssl3_read_internal, respectively, and adding 'peek' parameters
4727 to them. The new ssl[23]_{read,peek} functions are calls to
4728 ssl[23]_read_internal with the 'peek' flag set appropriately.
4729 A 'peek' parameter has also been added to ssl3_read_bytes, which
4730 does the actual work for ssl3_read_internal.
4733 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4734 the method-specific "init()" handler. Also clean up ex_data after
4735 calling the method-specific "finish()" handler. Previously, this was
4736 happening the other way round.
4739 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4740 The previous value, 12, was not always sufficient for BN_mod_exp().
4743 *) Make sure that shared libraries get the internal name engine with
4744 the full version number and not just 0. This should mark the
4745 shared libraries as not backward compatible. Of course, this should
4746 be changed again when we can guarantee backward binary compatibility.
4749 *) Fix typo in get_cert_by_subject() in by_dir.c
4750 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4752 *) Rework the system to generate shared libraries:
4754 - Make note of the expected extension for the shared libraries and
4755 if there is a need for symbolic links from for example libcrypto.so.0
4756 to libcrypto.so.0.9.7. There is extended info in Configure for
4759 - Make as few rebuilds of the shared libraries as possible.
4761 - Still avoid linking the OpenSSL programs with the shared libraries.
4763 - When installing, install the shared libraries separately from the
4767 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4769 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4770 and not in SSL_clear because the latter is also used by the
4771 accept/connect functions; previously, the settings made by
4772 SSL_set_read_ahead would be lost during the handshake.
4773 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4775 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4776 Previously, it would create entries for disableed algorithms no
4780 *) Added several new manual pages for SSL_* function.
4783 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4785 *) In ssl23_get_client_hello, generate an error message when faced
4786 with an initial SSL 3.0/TLS record that is too small to contain the
4787 first two bytes of the ClientHello message, i.e. client_version.
4788 (Note that this is a pathologic case that probably has never happened
4789 in real life.) The previous approach was to use the version number
4790 from the record header as a substitute; but our protocol choice
4791 should not depend on that one because it is not authenticated
4792 by the Finished messages.
4795 *) More robust randomness gathering functions for Windows.
4796 [Jeffrey Altman <jaltman@columbia.edu>]
4798 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4799 not set then we don't setup the error code for issuer check errors
4800 to avoid possibly overwriting other errors which the callback does
4801 handle. If an application does set the flag then we assume it knows
4802 what it is doing and can handle the new informational codes
4806 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4807 a general "ANY" type, as such it should be able to decode anything
4808 including tagged types. However it didn't check the class so it would
4809 wrongly interpret tagged types in the same way as their universal
4810 counterpart and unknown types were just rejected. Changed so that the
4811 tagged and unknown types are handled in the same way as a SEQUENCE:
4812 that is the encoding is stored intact. There is also a new type
4813 "V_ASN1_OTHER" which is used when the class is not universal, in this
4814 case we have no idea what the actual type is so we just lump them all
4818 *) On VMS, stdout may very well lead to a file that is written to
4819 in a record-oriented fashion. That means that every write() will
4820 write a separate record, which will be read separately by the
4821 programs trying to read from it. This can be very confusing.
4823 The solution is to put a BIO filter in the way that will buffer
4824 text until a linefeed is reached, and then write everything a
4825 line at a time, so every record written will be an actual line,
4826 not chunks of lines and not (usually doesn't happen, but I've
4827 seen it once) several lines in one record. BIO_f_linebuffer() is
4830 Currently, it's a VMS-only method, because that's where it has
4831 been tested well enough.
4834 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4835 it can return incorrect results.
4836 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4837 but it was in 0.9.6-beta[12].)
4840 *) Disable the check for content being present when verifying detached
4841 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4842 include zero length content when signing messages.
4845 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4846 BIO_ctrl (for BIO pairs).
4849 *) Add DSO method for VMS.
4852 *) Bug fix: Montgomery multiplication could produce results with the
4856 *) Add RPM specification openssl.spec and modify it to build three
4857 packages. The default package contains applications, application
4858 documentation and run-time libraries. The devel package contains
4859 include files, static libraries and function documentation. The
4860 doc package contains the contents of the doc directory. The original
4861 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4864 *) Add a large number of documentation files for many SSL routines.
4865 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4867 *) Add a configuration entry for Sony News 4.
4868 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4870 *) Don't set the two most significant bits to one when generating a
4871 random number < q in the DSA library.
4874 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4875 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4876 the underlying transport is blocking) if a handshake took place.
4877 (The default behaviour is needed by applications such as s_client
4878 and s_server that use select() to determine when to use SSL_read;
4879 but for applications that know in advance when to expect data, it
4880 just makes things more complicated.)
4883 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4887 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4888 work better on such systems.
4889 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4891 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4892 Update PKCS12_parse() so it copies the friendlyName and the
4893 keyid to the certificates aux info.
4896 *) Fix bug in PKCS7_verify() which caused an infinite loop
4897 if there was more than one signature.
4898 [Sven Uszpelkat <su@celocom.de>]
4900 *) Major change in util/mkdef.pl to include extra information
4901 about each symbol, as well as presentig variables as well
4902 as functions. This change means that there's n more need
4903 to rebuild the .num files when some algorithms are excluded.
4906 *) Allow the verify time to be set by an application,
4907 rather than always using the current time.
4910 *) Phase 2 verify code reorganisation. The certificate
4911 verify code now looks up an issuer certificate by a
4912 number of criteria: subject name, authority key id
4913 and key usage. It also verifies self signed certificates
4914 by the same criteria. The main comparison function is
4915 X509_check_issued() which performs these checks.
4917 Lot of changes were necessary in order to support this
4918 without completely rewriting the lookup code.
4920 Authority and subject key identifier are now cached.
4922 The LHASH 'certs' is X509_STORE has now been replaced
4923 by a STACK_OF(X509_OBJECT). This is mainly because an
4924 LHASH can't store or retrieve multiple objects with
4925 the same hash value.
4927 As a result various functions (which were all internal
4928 use only) have changed to handle the new X509_STORE
4929 structure. This will break anything that messed round
4930 with X509_STORE internally.
4932 The functions X509_STORE_add_cert() now checks for an
4933 exact match, rather than just subject name.
4935 The X509_STORE API doesn't directly support the retrieval
4936 of multiple certificates matching a given criteria, however
4937 this can be worked round by performing a lookup first
4938 (which will fill the cache with candidate certificates)
4939 and then examining the cache for matches. This is probably
4940 the best we can do without throwing out X509_LOOKUP
4941 entirely (maybe later...).
4943 The X509_VERIFY_CTX structure has been enhanced considerably.
4945 All certificate lookup operations now go via a get_issuer()
4946 callback. Although this currently uses an X509_STORE it
4947 can be replaced by custom lookups. This is a simple way
4948 to bypass the X509_STORE hackery necessary to make this
4949 work and makes it possible to use more efficient techniques
4950 in future. A very simple version which uses a simple
4951 STACK for its trusted certificate store is also provided
4952 using X509_STORE_CTX_trusted_stack().
4954 The verify_cb() and verify() callbacks now have equivalents
4955 in the X509_STORE_CTX structure.
4957 X509_STORE_CTX also has a 'flags' field which can be used
4958 to customise the verify behaviour.
4961 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4962 excludes S/MIME capabilities.
4965 *) When a certificate request is read in keep a copy of the
4966 original encoding of the signed data and use it when outputing
4967 again. Signatures then use the original encoding rather than
4968 a decoded, encoded version which may cause problems if the
4969 request is improperly encoded.
4972 *) For consistency with other BIO_puts implementations, call
4973 buffer_write(b, ...) directly in buffer_puts instead of calling
4976 In BIO_puts, increment b->num_write as in BIO_write.
4977 [Peter.Sylvester@EdelWeb.fr]
4979 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4980 BN_zero, we may not return a BIGNUM with an array consisting of
4984 *) Avoid calling abort() from within the library when problems are
4985 detected, except if preprocessor symbols have been defined
4986 (such as REF_CHECK, BN_DEBUG etc.).
4989 *) New openssl application 'rsautl'. This utility can be
4990 used for low level RSA operations. DER public key
4991 BIO/fp routines also added.
4994 *) New Configure entry and patches for compiling on QNX 4.
4995 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4997 *) A demo state-machine implementation was sponsored by
4998 Nuron (http://www.nuron.com/) and is now available in
4999 demos/state_machine.
5002 *) New options added to the 'dgst' utility for signature
5003 generation and verification.
5006 *) Unrecognized PKCS#7 content types are now handled via a
5007 catch all ASN1_TYPE structure. This allows unsupported
5008 types to be stored as a "blob" and an application can
5009 encode and decode it manually.
5012 *) Fix various signed/unsigned issues to make a_strex.c
5014 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5016 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5017 length if passed a buffer. ASN1_INTEGER_to_BN failed
5018 if passed a NULL BN and its argument was negative.
5019 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5021 *) Modification to PKCS#7 encoding routines to output definite
5022 length encoding. Since currently the whole structures are in
5023 memory there's not real point in using indefinite length
5024 constructed encoding. However if OpenSSL is compiled with
5025 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5028 *) Added BIO_vprintf() and BIO_vsnprintf().
5031 *) Added more prefixes to parse for in the the strings written
5032 through a logging bio, to cover all the levels that are available
5033 through syslog. The prefixes are now:
5035 PANIC, EMERG, EMR => LOG_EMERG
5036 ALERT, ALR => LOG_ALERT
5037 CRIT, CRI => LOG_CRIT
5038 ERROR, ERR => LOG_ERR
5039 WARNING, WARN, WAR => LOG_WARNING
5040 NOTICE, NOTE, NOT => LOG_NOTICE
5041 INFO, INF => LOG_INFO
5042 DEBUG, DBG => LOG_DEBUG
5044 and as before, if none of those prefixes are present at the
5045 beginning of the string, LOG_ERR is chosen.
5047 On Win32, the LOG_* levels are mapped according to this:
5049 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5050 LOG_WARNING => EVENTLOG_WARNING_TYPE
5051 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5055 *) Made it possible to reconfigure with just the configuration
5056 argument "reconf" or "reconfigure". The command line arguments
5057 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5058 and are retrieved from there when reconfiguring.
5062 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5064 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5067 *) The obj_dat.pl script was messing up the sorting of object
5068 names. The reason was that it compared the quoted version
5069 of strings as a result "OCSP" > "OCSP Signing" because
5070 " > SPACE. Changed script to store unquoted versions of
5071 names and add quotes on output. It was also omitting some
5072 names from the lookup table if they were given a default
5073 value (that is if SN is missing it is given the same
5074 value as LN and vice versa), these are now added on the
5075 grounds that if an object has a name we should be able to
5076 look it up. Finally added warning output when duplicate
5077 short or long names are found.
5080 *) Changes needed for Tandem NSK.
5081 [Scott Uroff <scott@xypro.com>]
5083 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5084 RSA_padding_check_SSLv23(), special padding was never detected
5085 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5086 version rollback attacks was not effective.
5088 In s23_clnt.c, don't use special rollback-attack detection padding
5089 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5090 client; similarly, in s23_srvr.c, don't do the rollback check if
5091 SSL 2.0 is the only protocol enabled in the server.
5094 *) Make it possible to get hexdumps of unprintable data with 'openssl
5095 asn1parse'. By implication, the functions ASN1_parse_dump() and
5096 BIO_dump_indent() are added.
5099 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5100 these print out strings and name structures based on various
5101 flags including RFC2253 support and proper handling of
5102 multibyte characters. Added options to the 'x509' utility
5103 to allow the various flags to be set.
5106 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5107 Also change the functions X509_cmp_current_time() and
5108 X509_gmtime_adj() work with an ASN1_TIME structure,
5109 this will enable certificates using GeneralizedTime in validity
5110 dates to be checked.
5113 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5114 negative public key encodings) on by default,
5115 NO_NEG_PUBKEY_BUG can be set to disable it.
5118 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5119 content octets. An i2c_ASN1_OBJECT is unnecessary because
5120 the encoding can be trivially obtained from the structure.
5123 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5124 not read locks (CRYPTO_r_[un]lock).
5127 *) A first attempt at creating official support for shared
5128 libraries through configuration. I've kept it so the
5129 default is static libraries only, and the OpenSSL programs
5130 are always statically linked for now, but there are
5131 preparations for dynamic linking in place.
5132 This has been tested on Linux and Tru64.
5135 *) Randomness polling function for Win9x, as described in:
5136 Peter Gutmann, Software Generation of Practically Strong
5140 *) Fix so PRNG is seeded in req if using an already existing
5144 *) New options to smime application. -inform and -outform
5145 allow alternative formats for the S/MIME message including
5146 PEM and DER. The -content option allows the content to be
5147 specified separately. This should allow things like Netscape
5148 form signing output easier to verify.
5151 *) Fix the ASN1 encoding of tags using the 'long form'.
5154 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5155 STRING types. These convert content octets to and from the
5156 underlying type. The actual tag and length octets are
5157 already assumed to have been read in and checked. These
5158 are needed because all other string types have virtually
5159 identical handling apart from the tag. By having versions
5160 of the ASN1 functions that just operate on content octets
5161 IMPLICIT tagging can be handled properly. It also allows
5162 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5163 and ASN1_INTEGER are identical apart from the tag.
5166 *) Change the handling of OID objects as follows:
5168 - New object identifiers are inserted in objects.txt, following
5169 the syntax given in objects.README.
5170 - objects.pl is used to process obj_mac.num and create a new
5172 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5175 This is currently kind of a hack, and the perl code in objects.pl
5176 isn't very elegant, but it works as I intended. The simplest way
5177 to check that it worked correctly is to look in obj_dat.h and
5178 check the array nid_objs and make sure the objects haven't moved
5179 around (this is important!). Additions are OK, as well as
5180 consistent name changes.
5183 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5186 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5187 The given file adds to whatever has already been seeded into the
5188 random pool through the RANDFILE configuration file option or
5189 environment variable, or the default random state file.
5192 *) mkstack.pl now sorts each macro group into lexical order.
5193 Previously the output order depended on the order the files
5194 appeared in the directory, resulting in needless rewriting
5198 *) Patches to make OpenSSL compile under Win32 again. Mostly
5199 work arounds for the VC++ problem that it treats func() as
5200 func(void). Also stripped out the parts of mkdef.pl that
5201 added extra typesafe functions: these no longer exist.
5204 *) Reorganisation of the stack code. The macros are now all
5205 collected in safestack.h . Each macro is defined in terms of
5206 a "stack macro" of the form SKM_<name>(type, a, b). The
5207 DEBUG_SAFESTACK is now handled in terms of function casts,
5208 this has the advantage of retaining type safety without the
5209 use of additional functions. If DEBUG_SAFESTACK is not defined
5210 then the non typesafe macros are used instead. Also modified the
5211 mkstack.pl script to handle the new form. Needs testing to see
5212 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5213 the default if no major problems. Similar behaviour for ASN1_SET_OF
5214 and PKCS12_STACK_OF.
5217 *) When some versions of IIS use the 'NET' form of private key the
5218 key derivation algorithm is different. Normally MD5(password) is
5219 used as a 128 bit RC4 key. In the modified case
5220 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5221 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5222 as the old Netscape_RSA functions except they have an additional
5223 'sgckey' parameter which uses the modified algorithm. Also added
5224 an -sgckey command line option to the rsa utility. Thanks to
5225 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5226 algorithm to openssl-dev.
5229 *) The evp_local.h macros were using 'c.##kname' which resulted in
5230 invalid expansion on some systems (SCO 5.0.5 for example).
5231 Corrected to 'c.kname'.
5232 [Phillip Porch <root@theporch.com>]
5234 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5235 a STACK of email addresses from a certificate or request, these look
5236 in the subject name and the subject alternative name extensions and
5237 omit any duplicate addresses.
5240 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5241 This makes DSA verification about 2 % faster.
5244 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5245 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5246 plus overhead for 1024 bit moduli).
5247 This makes exponentiations about 0.5 % faster for 1024 bit
5248 exponents (as measured by "openssl speed rsa2048").
5251 *) Rename memory handling macros to avoid conflicts with other
5253 Malloc => OPENSSL_malloc
5254 Malloc_locked => OPENSSL_malloc_locked
5255 Realloc => OPENSSL_realloc
5256 Free => OPENSSL_free
5259 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5260 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5263 *) CygWin32 support.
5264 [John Jarvie <jjarvie@newsguy.com>]
5266 *) The type-safe stack code has been rejigged. It is now only compiled
5267 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5268 by default all type-specific stack functions are "#define"d back to
5269 standard stack functions. This results in more streamlined output
5270 but retains the type-safety checking possibilities of the original
5274 *) The STACK code has been cleaned up, and certain type declarations
5275 that didn't make a lot of sense have been brought in line. This has
5276 also involved a cleanup of sorts in safestack.h to more correctly
5277 map type-safe stack functions onto their plain stack counterparts.
5278 This work has also resulted in a variety of "const"ifications of
5279 lots of the code, especially "_cmp" operations which should normally
5280 be prototyped with "const" parameters anyway.
5283 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5284 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5285 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5286 where all of 'md' is used each time the PRNG is used, but 'state'
5287 is used only indexed by a cyclic counter. As entropy may not be
5288 well distributed from the beginning, 'md' is important as a
5289 chaining variable. However, the output function chains only half
5290 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5291 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5292 in all of 'state' being rewritten, with the new values depending
5293 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5296 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5297 the handshake is continued after ssl_verify_cert_chain();
5298 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5299 can lead to 'unexplainable' connection aborts later.
5300 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5302 *) Major EVP API cipher revision.
5303 Add hooks for extra EVP features. This allows various cipher
5304 parameters to be set in the EVP interface. Support added for variable
5305 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5306 setting of RC2 and RC5 parameters.
5308 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5311 Remove lots of duplicated code from the EVP library. For example *every*
5312 cipher init() function handles the 'iv' in the same way according to the
5313 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5314 for CFB and OFB modes they zero ctx->num.
5316 New functionality allows removal of S/MIME code RC2 hack.
5318 Most of the routines have the same form and so can be declared in terms
5321 By shifting this to the top level EVP_CipherInit() it can be removed from
5322 all individual ciphers. If the cipher wants to handle IVs or keys
5323 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5326 Change lots of functions like EVP_EncryptUpdate() to now return a
5327 value: although software versions of the algorithms cannot fail
5328 any installed hardware versions can.
5331 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5332 this option is set, tolerate broken clients that send the negotiated
5333 protocol version number instead of the requested protocol version
5337 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5338 i.e. non-zero for export ciphersuites, zero otherwise.
5339 Previous versions had this flag inverted, inconsistent with
5340 rsa_tmp_cb (..._TMP_RSA_CB).
5341 [Bodo Moeller; problem reported by Amit Chopra]
5343 *) Add missing DSA library text string. Work around for some IIS
5344 key files with invalid SEQUENCE encoding.
5347 *) Add a document (doc/standards.txt) that list all kinds of standards
5348 and so on that are implemented in OpenSSL.
5351 *) Enhance c_rehash script. Old version would mishandle certificates
5352 with the same subject name hash and wouldn't handle CRLs at all.
5353 Added -fingerprint option to crl utility, to support new c_rehash
5357 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5360 *) Fix for SSL server purpose checking. Server checking was
5361 rejecting certificates which had extended key usage present
5362 but no ssl client purpose.
5363 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5365 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5366 is a little unclear about how a blank password is handled.
5367 Since the password in encoded as a BMPString with terminating
5368 double NULL a zero length password would end up as just the
5369 double NULL. However no password at all is different and is
5370 handled differently in the PKCS#12 key generation code. NS
5371 treats a blank password as zero length. MSIE treats it as no
5372 password on export: but it will try both on import. We now do
5373 the same: PKCS12_parse() tries zero length and no password if
5374 the password is set to "" or NULL (NULL is now a valid password:
5375 it wasn't before) as does the pkcs12 application.
5378 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5379 perror when PEM_read_bio_X509_REQ fails, the error message must
5380 be obtained from the error queue.
5383 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5384 it in ERR_remove_state if appropriate, and change ERR_get_state
5385 accordingly to avoid race conditions (this is necessary because
5386 thread_hash is no longer constant once set).
5389 *) Bugfix for linux-elf makefile.one.
5392 *) RSA_get_default_method() will now cause a default
5393 RSA_METHOD to be chosen if one doesn't exist already.
5394 Previously this was only set during a call to RSA_new()
5395 or RSA_new_method(NULL) meaning it was possible for
5396 RSA_get_default_method() to return NULL.
5399 *) Added native name translation to the existing DSO code
5400 that will convert (if the flag to do so is set) filenames
5401 that are sufficiently small and have no path information
5402 into a canonical native form. Eg. "blah" converted to
5403 "libblah.so" or "blah.dll" etc.
5406 *) New function ERR_error_string_n(e, buf, len) which is like
5407 ERR_error_string(e, buf), but writes at most 'len' bytes
5408 including the 0 terminator. For ERR_error_string_n, 'buf'
5410 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5412 *) CONF library reworked to become more general. A new CONF
5413 configuration file reader "class" is implemented as well as a
5414 new functions (NCONF_*, for "New CONF") to handle it. The now
5415 old CONF_* functions are still there, but are reimplemented to
5416 work in terms of the new functions. Also, a set of functions
5417 to handle the internal storage of the configuration data is
5418 provided to make it easier to write new configuration file
5419 reader "classes" (I can definitely see something reading a
5420 configuration file in XML format, for example), called _CONF_*,
5421 or "the configuration storage API"...
5423 The new configuration file reading functions are:
5425 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5426 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5428 NCONF_default, NCONF_WIN32
5430 NCONF_dump_fp, NCONF_dump_bio
5432 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5433 NCONF_new creates a new CONF object. This works in the same way
5434 as other interfaces in OpenSSL, like the BIO interface.
5435 NCONF_dump_* dump the internal storage of the configuration file,
5436 which is useful for debugging. All other functions take the same
5437 arguments as the old CONF_* functions wth the exception of the
5438 first that must be a `CONF *' instead of a `LHASH *'.
5440 To make it easer to use the new classes with the old CONF_* functions,
5441 the function CONF_set_default_method is provided.
5444 *) Add '-tls1' option to 'openssl ciphers', which was already
5445 mentioned in the documentation but had not been implemented.
5446 (This option is not yet really useful because even the additional
5447 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5450 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5451 OpenSSL-based applications) load shared libraries and bind to
5452 them in a portable way.
5453 [Geoff Thorpe, with contributions from Richard Levitte]
5455 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5457 *) Make sure _lrotl and _lrotr are only used with MSVC.
5459 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5460 (the default implementation of RAND_status).
5462 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5463 to '-clrext' (= clear extensions), as intended and documented.
5464 [Bodo Moeller; inconsistency pointed out by Michael Attili
5467 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5468 was larger than the MD block size.
5469 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5471 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5472 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5473 using the passed key: if the passed key was a private key the result
5474 of X509_print(), for example, would be to print out all the private key
5478 *) des_quad_cksum() byte order bug fix.
5479 [Ulf Möller, using the problem description in krb4-0.9.7, where
5480 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5482 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5484 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5486 *) For easily testing in shell scripts whether some command
5487 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5488 returns with exit code 0 iff no command of the given name is available.
5489 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5490 the output goes to stdout and nothing is printed to stderr.
5491 Additional arguments are always ignored.
5493 Since for each cipher there is a command of the same name,
5494 the 'no-cipher' compilation switches can be tested this way.
5496 ('openssl no-XXX' is not able to detect pseudo-commands such
5497 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5500 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5503 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5504 is set; it will be thrown away anyway because each handshake creates
5506 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5507 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5508 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5509 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5512 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5513 'Q' and 'R' lose their special meanings (quit/renegotiate).
5514 This is part of what -quiet does; unlike -quiet, -ign_eof
5515 does not suppress any output.
5518 *) Add compatibility options to the purpose and trust code. The
5519 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5520 accepts a certificate or CA, this was the previous behaviour,
5521 with all the associated security issues.
5523 X509_TRUST_COMPAT is the old trust behaviour: only and
5524 automatically trust self signed roots in certificate store. A
5525 new trust setting X509_TRUST_DEFAULT is used to specify that
5526 a purpose has no associated trust setting and it should instead
5527 use the value in the default purpose.
5530 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5531 and fix a memory leak.
5534 *) In util/mkerr.pl (which implements 'make errors'), preserve
5535 reason strings from the previous version of the .c file, as
5536 the default to have only downcase letters (and digits) in
5537 automatically generated reasons codes is not always appropriate.
5540 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5541 using strerror. Previously, ERR_reason_error_string() returned
5542 library names as reason strings for SYSerr; but SYSerr is a special
5543 case where small numbers are errno values, not library numbers.
5546 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5547 converts DSA parameters into DH parameters. (When creating parameters,
5548 DSA_generate_parameters is used.)
5551 *) Include 'length' (recommended exponent length) in C code generated
5552 by 'openssl dhparam -C'.
5555 *) The second argument to set_label in perlasm was already being used
5556 so couldn't be used as a "file scope" flag. Moved to third argument
5560 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5561 instead of RAND_bytes for encryption IVs and salts.
5564 *) Include RAND_status() into RAND_METHOD instead of implementing
5565 it only for md_rand.c Otherwise replacing the PRNG by calling
5566 RAND_set_rand_method would be impossible.
5569 *) Don't let DSA_generate_key() enter an infinite loop if the random
5570 number generation fails.
5573 *) New 'rand' application for creating pseudo-random output.
5576 *) Added configuration support for Linux/IA64
5577 [Rolf Haberrecker <rolf@suse.de>]
5579 *) Assembler module support for Mingw32.
5582 *) Shared library support for HPUX (in shlib/).
5583 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5585 *) Shared library support for Solaris gcc.
5586 [Lutz Behnke <behnke@trustcenter.de>]
5588 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5590 *) PKCS7_encrypt() was adding text MIME headers twice because they
5591 were added manually and by SMIME_crlf_copy().
5594 *) In bntest.c don't call BN_rand with zero bits argument.
5595 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5597 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5598 case was implemented. This caused BN_div_recp() to fail occasionally.
5601 *) Add an optional second argument to the set_label() in the perl
5602 assembly language builder. If this argument exists and is set
5603 to 1 it signals that the assembler should use a symbol whose
5604 scope is the entire file, not just the current function. This
5605 is needed with MASM which uses the format label:: for this scope.
5606 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5608 *) Change the ASN1 types so they are typedefs by default. Before
5609 almost all types were #define'd to ASN1_STRING which was causing
5610 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5614 *) Change names of new functions to the new get1/get0 naming
5615 convention: After 'get1', the caller owns a reference count
5616 and has to call ..._free; 'get0' returns a pointer to some
5617 data structure without incrementing reference counters.
5618 (Some of the existing 'get' functions increment a reference
5619 counter, some don't.)
5620 Similarly, 'set1' and 'add1' functions increase reference
5621 counters or duplicate objects.
5624 *) Allow for the possibility of temp RSA key generation failure:
5625 the code used to assume it always worked and crashed on failure.
5628 *) Fix potential buffer overrun problem in BIO_printf().
5629 [Ulf Möller, using public domain code by Patrick Powell; problem
5630 pointed out by David Sacerdote <das33@cornell.edu>]
5632 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5633 RAND_egd() and RAND_status(). In the command line application,
5634 the EGD socket can be specified like a seed file using RANDFILE
5638 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5639 Some CAs (e.g. Verisign) distribute certificates in this form.
5642 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5643 list to exclude them. This means that no special compilation option
5644 is needed to use anonymous DH: it just needs to be included in the
5648 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5649 EVP_MD_type. The old functionality is available in a new macro called
5650 EVP_MD_md(). Change code that uses it and update docs.
5653 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5654 where the 'void *' argument is replaced by a function pointer argument.
5655 Previously 'void *' was abused to point to functions, which works on
5656 many platforms, but is not correct. As these functions are usually
5657 called by macros defined in OpenSSL header files, most source code
5658 should work without changes.
5661 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5662 sections with information on -D... compiler switches used for
5663 compiling the library so that applications can see them. To enable
5664 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5665 must be defined. E.g.,
5666 #define OPENSSL_ALGORITHM_DEFINES
5667 #include <openssl/opensslconf.h>
5668 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5669 [Richard Levitte, Ulf and Bodo Möller]
5671 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5675 *) Change the 'other' type in certificate aux info to a STACK_OF
5676 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5677 the required ASN1 format: arbitrary types determined by an OID.
5680 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5681 argument to 'req'. This is not because the function is newer or
5682 better than others it just uses the work 'NEW' in the certificate
5683 request header lines. Some software needs this.
5686 *) Reorganise password command line arguments: now passwords can be
5687 obtained from various sources. Delete the PEM_cb function and make
5688 it the default behaviour: i.e. if the callback is NULL and the
5689 usrdata argument is not NULL interpret it as a null terminated pass
5690 phrase. If usrdata and the callback are NULL then the pass phrase
5691 is prompted for as usual.
5694 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5695 the support is automatically enabled. The resulting binaries will
5696 autodetect the card and use it if present.
5697 [Ben Laurie and Compaq Inc.]
5699 *) Work around for Netscape hang bug. This sends certificate request
5700 and server done in one record. Since this is perfectly legal in the
5701 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5702 the bugs/SSLv3 entry for more info.
5705 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5708 *) Add -rand argument to smime and pkcs12 applications and read/write
5712 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5715 *) Add command line password options to the remaining applications.
5718 *) Bug fix for BN_div_recp() for numerators with an even number of
5722 *) More tests in bntest.c, and changed test_bn output.
5725 *) ./config recognizes MacOS X now.
5728 *) Bug fix for BN_div() when the first words of num and divsor are
5729 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5732 *) Add support for various broken PKCS#8 formats, and command line
5733 options to produce them.
5736 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5737 get temporary BIGNUMs from a BN_CTX.
5740 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5744 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5745 include a #define from the old name to the new. The original intent
5746 was that statically linked binaries could for example just call
5747 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5748 link with digests. This never worked becayse SSLeay_add_all_digests()
5749 and SSLeay_add_all_ciphers() were in the same source file so calling
5750 one would link with the other. They are now in separate source files.
5753 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5756 *) Use a less unusual form of the Miller-Rabin primality test (it used
5757 a binary algorithm for exponentiation integrated into the Miller-Rabin
5758 loop, our standard modexp algorithms are faster).
5761 *) Support for the EBCDIC character set completed.
5762 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5764 *) Source code cleanups: use const where appropriate, eliminate casts,
5765 use void * instead of char * in lhash.
5768 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5769 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5770 this the server could overwrite ephemeral keys that the client
5774 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5775 using 50 iterations of the Rabin-Miller test.
5777 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5778 iterations of the Rabin-Miller test as required by the appendix
5779 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5780 As BN_is_prime_fasttest includes trial division, DSA parameter
5781 generation becomes much faster.
5783 This implies a change for the callback functions in DSA_is_prime
5784 and DSA_generate_parameters: The callback function is called once
5785 for each positive witness in the Rabin-Miller test, not just
5786 occasionally in the inner loop; and the parameters to the
5787 callback function now provide an iteration count for the outer
5788 loop rather than for the current invocation of the inner loop.
5789 DSA_generate_parameters additionally can call the callback
5790 function with an 'iteration count' of -1, meaning that a
5791 candidate has passed the trial division test (when q is generated
5792 from an application-provided seed, trial division is skipped).
5795 *) New function BN_is_prime_fasttest that optionally does trial
5796 division before starting the Rabin-Miller test and has
5797 an additional BN_CTX * argument (whereas BN_is_prime always
5798 has to allocate at least one BN_CTX).
5799 'callback(1, -1, cb_arg)' is called when a number has passed the
5800 trial division stage.
5803 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5807 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5810 *) New function BN_pseudo_rand().
5813 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5814 bignum version of BN_from_montgomery() with the working code from
5815 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5819 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5820 made it impossible to use the same SSL_SESSION data structure in
5821 SSL2 clients in multiple threads.
5824 *) The return value of RAND_load_file() no longer counts bytes obtained
5825 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5826 to seed the PRNG (previously an explicit byte count was required).
5827 [Ulf Möller, Bodo Möller]
5829 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5830 used (char *) instead of (void *) and had casts all over the place.
5833 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5836 *) Retain source code compatibility for BN_prime_checks macro:
5837 BN_is_prime(..., BN_prime_checks, ...) now uses
5838 BN_prime_checks_for_size to determine the appropriate number of
5839 Rabin-Miller iterations.
5842 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5843 DH_CHECK_P_NOT_SAFE_PRIME.
5844 (Check if this is true? OpenPGP calls them "strong".)
5847 *) Merge the functionality of "dh" and "gendh" programs into a new program
5848 "dhparam". The old programs are retained for now but will handle DH keys
5849 (instead of parameters) in future.
5852 *) Make the ciphers, s_server and s_client programs check the return values
5853 when a new cipher list is set.
5856 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5857 ciphers. Before when the 56bit ciphers were enabled the sorting was
5860 The syntax for the cipher sorting has been extended to support sorting by
5861 cipher-strength (using the strength_bits hard coded in the tables).
5862 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5864 Fix a bug in the cipher-command parser: when supplying a cipher command
5865 string with an "undefined" symbol (neither command nor alphanumeric
5866 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5867 an error is flagged.
5869 Due to the strength-sorting extension, the code of the
5870 ssl_create_cipher_list() function was completely rearranged. I hope that
5871 the readability was also increased :-)
5872 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5874 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5875 for the first serial number and places 2 in the serial number file. This
5876 avoids problems when the root CA is created with serial number zero and
5877 the first user certificate has the same issuer name and serial number
5881 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5882 the new code. Add documentation for this stuff.
5885 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5886 X509_*() to X509at_*() on the grounds that they don't handle X509
5887 structures and behave in an analagous way to the X509v3 functions:
5888 they shouldn't be called directly but wrapper functions should be used
5891 So we also now have some wrapper functions that call the X509at functions
5892 when passed certificate requests. (TO DO: similar things can be done with
5893 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5894 things. Some of these need some d2i or i2d and print functionality
5895 because they handle more complex structures.)
5898 *) Add missing #ifndefs that caused missing symbols when building libssl
5899 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5900 NO_RSA in ssl/s2*.c.
5901 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5903 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5904 has a return value which indicates the quality of the random data
5905 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5906 error queue. New function RAND_pseudo_bytes() generates output that is
5907 guaranteed to be unique but not unpredictable. RAND_add is like
5908 RAND_seed, but takes an extra argument for an entropy estimate
5909 (RAND_seed always assumes full entropy).
5912 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5913 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5914 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5915 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5916 false-positive rate of at most 2^-80 for random input.
5919 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5922 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5923 in the 0.9.5 release), this returns the chain
5924 from an X509_CTX structure with a dup of the stack and all
5925 the X509 reference counts upped: so the stack will exist
5926 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5929 Also make SSL_SESSION_print() print out the verify return
5933 *) Add manpage for the pkcs12 command. Also change the default
5934 behaviour so MAC iteration counts are used unless the new
5935 -nomaciter option is used. This improves file security and
5936 only older versions of MSIE (4.0 for example) need it.
5939 *) Honor the no-xxx Configure options when creating .DEF files.
5942 *) Add PKCS#10 attributes to field table: challengePassword,
5943 unstructuredName and unstructuredAddress. These are taken from
5944 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5945 international characters are used.
5947 More changes to X509_ATTRIBUTE code: allow the setting of types
5948 based on strings. Remove the 'loc' parameter when adding
5949 attributes because these will be a SET OF encoding which is sorted
5953 *) Initial changes to the 'req' utility to allow request generation
5954 automation. This will allow an application to just generate a template
5955 file containing all the field values and have req construct the
5958 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5959 used all over the place including certificate requests and PKCS#7
5960 structures. They are currently handled manually where necessary with
5961 some primitive wrappers for PKCS#7. The new functions behave in a
5962 manner analogous to the X509 extension functions: they allow
5963 attributes to be looked up by NID and added.
5965 Later something similar to the X509V3 code would be desirable to
5966 automatically handle the encoding, decoding and printing of the
5967 more complex types. The string types like challengePassword can
5968 be handled by the string table functions.
5970 Also modified the multi byte string table handling. Now there is
5971 a 'global mask' which masks out certain types. The table itself
5972 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5973 is useful when for example there is only one permissible type
5974 (as in countryName) and using the mask might result in no valid
5978 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5979 SSL_get_peer_finished to allow applications to obtain the latest
5980 Finished messages sent to the peer or expected from the peer,
5981 respectively. (SSL_get_peer_finished is usually the Finished message
5982 actually received from the peer, otherwise the protocol will be aborted.)
5984 As the Finished message are message digests of the complete handshake
5985 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5986 be used for external authentication procedures when the authentication
5987 provided by SSL/TLS is not desired or is not enough.
5990 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5991 the host supports BWX extension and if Compaq C is present on the
5992 $PATH. Just exploiting of the BWX extension results in 20-30%
5993 performance kick for some algorithms, e.g. DES and RC4 to mention
5994 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5998 *) Add support for MS "fast SGC". This is arguably a violation of the
5999 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6000 weak crypto and after checking the certificate is SGC a second one
6001 with strong crypto. MS SGC stops the first handshake after receiving
6002 the server certificate message and sends a second client hello. Since
6003 a server will typically do all the time consuming operations before
6004 expecting any further messages from the client (server key exchange
6005 is the most expensive) there is little difference between the two.
6007 To get OpenSSL to support MS SGC we have to permit a second client
6008 hello message after we have sent server done. In addition we have to
6009 reset the MAC if we do get this second client hello.
6012 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6013 if a DER encoded private key is RSA or DSA traditional format. Changed
6014 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6015 format DER encoded private key. Newer code should use PKCS#8 format which
6016 has the key type encoded in the ASN1 structure. Added DER private key
6017 support to pkcs8 application.
6020 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6021 ciphersuites has been selected (as required by the SSL 3/TLS 1
6022 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6023 is set, we interpret this as a request to violate the specification
6024 (the worst that can happen is a handshake failure, and 'correct'
6025 behaviour would result in a handshake failure anyway).
6028 *) In SSL_CTX_add_session, take into account that there might be multiple
6029 SSL_SESSION structures with the same session ID (e.g. when two threads
6030 concurrently obtain them from an external cache).
6031 The internal cache can handle only one SSL_SESSION with a given ID,
6032 so if there's a conflict, we now throw out the old one to achieve
6036 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6037 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6038 some routines that use cipher OIDs: some ciphers do not have OIDs
6039 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6043 *) Simplify the trust setting structure and code. Now we just have
6044 two sequences of OIDs for trusted and rejected settings. These will
6045 typically have values the same as the extended key usage extension
6046 and any application specific purposes.
6048 The trust checking code now has a default behaviour: it will just
6049 check for an object with the same NID as the passed id. Functions can
6050 be provided to override either the default behaviour or the behaviour
6051 for a given id. SSL client, server and email already have functions
6052 in place for compatibility: they check the NID and also return "trusted"
6053 if the certificate is self signed.
6056 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6057 traditional format into an EVP_PKEY structure.
6060 *) Add a password callback function PEM_cb() which either prompts for
6061 a password if usr_data is NULL or otherwise assumes it is a null
6062 terminated password. Allow passwords to be passed on command line
6063 environment or config files in a few more utilities.
6066 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6067 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6068 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6069 Update documentation.
6072 *) Support for ASN1 "NULL" type. This could be handled before by using
6073 ASN1_TYPE but there wasn't any function that would try to read a NULL
6074 and produce an error if it couldn't. For compatibility we also have
6075 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6076 don't allocate anything because they don't need to.
6079 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6081 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6083 *) Rebuild of the memory allocation routines used by OpenSSL code and
6084 possibly others as well. The purpose is to make an interface that
6085 provide hooks so anyone can build a separate set of allocation and
6086 deallocation routines to be used by OpenSSL, for example memory
6087 pool implementations, or something else, which was previously hard
6088 since Malloc(), Realloc() and Free() were defined as macros having
6089 the values malloc, realloc and free, respectively (except for Win32
6090 compilations). The same is provided for memory debugging code.
6091 OpenSSL already comes with functionality to find memory leaks, but
6092 this gives people a chance to debug other memory problems.
6094 With these changes, a new set of functions and macros have appeared:
6096 CRYPTO_set_mem_debug_functions() [F]
6097 CRYPTO_get_mem_debug_functions() [F]
6098 CRYPTO_dbg_set_options() [F]
6099 CRYPTO_dbg_get_options() [F]
6100 CRYPTO_malloc_debug_init() [M]
6102 The memory debug functions are NULL by default, unless the library
6103 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6104 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6105 gives the standard debugging functions that come with OpenSSL) or
6106 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6107 provided by the library user) must be used. When the standard
6108 debugging functions are used, CRYPTO_dbg_set_options can be used to
6109 request additional information:
6110 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6111 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6113 Also, things like CRYPTO_set_mem_functions will always give the
6114 expected result (the new set of functions is used for allocation
6115 and deallocation) at all times, regardless of platform and compiler
6118 To finish it up, some functions that were never use in any other
6119 way than through macros have a new API and new semantic:
6122 CRYPTO_dbg_realloc()
6125 All macros of value have retained their old syntax.
6126 [Richard Levitte and Bodo Moeller]
6128 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6129 ordering of SMIMECapabilities wasn't in "strength order" and there
6130 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6134 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6135 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6136 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6138 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6139 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6140 functionality to handle multipart/signed properly) and a utility
6141 called 'smime' to call all this stuff. This is based on code I
6142 originally wrote for Celo who have kindly allowed it to be
6143 included in OpenSSL.
6146 *) Add variants des_set_key_checked and des_set_key_unchecked of
6147 des_set_key (aka des_key_sched). Global variable des_check_key
6148 decides which of these is called by des_set_key; this way
6149 des_check_key behaves as it always did, but applications and
6150 the library itself, which was buggy for des_check_key == 1,
6151 have a cleaner way to pick the version they need.
6154 *) New function PKCS12_newpass() which changes the password of a
6158 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6159 dynamic mix. In both cases the ids can be used as an index into the
6160 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6161 functions so they accept a list of the field values and the
6162 application doesn't need to directly manipulate the X509_TRUST
6166 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6170 *) Modify the way the V3 extension code looks up extensions. This now
6171 works in a similar way to the object code: we have some "standard"
6172 extensions in a static table which is searched with OBJ_bsearch()
6173 and the application can add dynamic ones if needed. The file
6174 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6175 updated whenever a new extension is added to the core code and kept
6176 in ext_nid order. There is a simple program 'tabtest.c' which checks
6177 this. New extensions are not added too often so this file can readily
6178 be maintained manually.
6180 There are two big advantages in doing things this way. The extensions
6181 can be looked up immediately and no longer need to be "added" using
6182 X509V3_add_standard_extensions(): this function now does nothing.
6183 [Side note: I get *lots* of email saying the extension code doesn't
6184 work because people forget to call this function]
6185 Also no dynamic allocation is done unless new extensions are added:
6186 so if we don't add custom extensions there is no need to call
6187 X509V3_EXT_cleanup().
6190 *) Modify enc utility's salting as follows: make salting the default. Add a
6191 magic header, so unsalted files fail gracefully instead of just decrypting
6192 to garbage. This is because not salting is a big security hole, so people
6193 should be discouraged from doing it.
6196 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6197 digest to be passed on the command line but it only used this
6198 parameter when signing a certificate. Modified so all relevant
6199 operations are affected by the digest parameter including the
6200 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6201 DSA key was used because it didn't fix the digest.
6204 *) Initial certificate chain verify code. Currently tests the untrusted
6205 certificates for consistency with the verify purpose (which is set
6206 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6208 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6209 this is because it will reject chains with invalid extensions whereas
6210 every previous version of OpenSSL and SSLeay made no checks at all.
6212 Trust code: checks the root CA for the relevant trust settings. Trust
6213 settings have an initial value consistent with the verify purpose: e.g.
6214 if the verify purpose is for SSL client use it expects the CA to be
6215 trusted for SSL client use. However the default value can be changed to
6216 permit custom trust settings: one example of this would be to only trust
6217 certificates from a specific "secure" set of CAs.
6219 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6220 which should be used for version portability: especially since the
6221 verify structure is likely to change more often now.
6223 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6224 to set them. If not set then assume SSL clients will verify SSL servers
6227 Two new options to the verify program: -untrusted allows a set of
6228 untrusted certificates to be passed in and -purpose which sets the
6229 intended purpose of the certificate. If a purpose is set then the
6230 new chain verify code is used to check extension consistency.
6233 *) Support for the authority information access extension.
6236 *) Modify RSA and DSA PEM read routines to transparently handle
6237 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6238 public keys in a format compatible with certificate
6239 SubjectPublicKeyInfo structures. Unfortunately there were already
6240 functions called *_PublicKey_* which used various odd formats so
6241 these are retained for compatibility: however the DSA variants were
6242 never in a public release so they have been deleted. Changed dsa/rsa
6243 utilities to handle the new format: note no releases ever handled public
6244 keys so we should be OK.
6246 The primary motivation for this change is to avoid the same fiasco
6247 that dogs private keys: there are several incompatible private key
6248 formats some of which are standard and some OpenSSL specific and
6249 require various evil hacks to allow partial transparent handling and
6250 even then it doesn't work with DER formats. Given the option anything
6251 other than PKCS#8 should be dumped: but the other formats have to
6252 stay in the name of compatibility.
6254 With public keys and the benefit of hindsight one standard format
6255 is used which works with EVP_PKEY, RSA or DSA structures: though
6256 it clearly returns an error if you try to read the wrong kind of key.
6258 Added a -pubkey option to the 'x509' utility to output the public key.
6259 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6260 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6261 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6262 that do the same as the EVP_PKEY_assign_*() except they up the
6263 reference count of the added key (they don't "swallow" the
6267 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6268 CRLs would fail if the file contained no certificates or no CRLs:
6269 added a new function to read in both types and return the number
6270 read: this means that if none are read it will be an error. The
6271 DER versions of the certificate and CRL reader would always fail
6272 because it isn't possible to mix certificates and CRLs in DER format
6273 without choking one or the other routine. Changed this to just read
6274 a certificate: this is the best we can do. Also modified the code
6275 in apps/verify.c to take notice of return codes: it was previously
6276 attempting to read in certificates from NULL pointers and ignoring
6277 any errors: this is one reason why the cert and CRL reader seemed
6278 to work. It doesn't check return codes from the default certificate
6279 routines: these may well fail if the certificates aren't installed.
6282 *) Code to support otherName option in GeneralName.
6285 *) First update to verify code. Change the verify utility
6286 so it warns if it is passed a self signed certificate:
6287 for consistency with the normal behaviour. X509_verify
6288 has been modified to it will now verify a self signed
6289 certificate if *exactly* the same certificate appears
6290 in the store: it was previously impossible to trust a
6291 single self signed certificate. This means that:
6292 openssl verify ss.pem
6293 now gives a warning about a self signed certificate but
6294 openssl verify -CAfile ss.pem ss.pem
6298 *) For servers, store verify_result in SSL_SESSION data structure
6299 (and add it to external session representation).
6300 This is needed when client certificate verifications fails,
6301 but an application-provided verification callback (set by
6302 SSL_CTX_set_cert_verify_callback) allows accepting the session
6303 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6304 but returns 1): When the session is reused, we have to set
6305 ssl->verify_result to the appropriate error code to avoid
6307 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6309 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6310 case in PKCS7_dataInit() where the signed PKCS7 structure
6311 didn't contain any existing data because it was being created.
6312 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6314 *) Add a salt to the key derivation routines in enc.c. This
6315 forms the first 8 bytes of the encrypted file. Also add a
6316 -S option to allow a salt to be input on the command line.
6319 *) New function X509_cmp(). Oddly enough there wasn't a function
6320 to compare two certificates. We do this by working out the SHA1
6321 hash and comparing that. X509_cmp() will be needed by the trust
6325 *) SSL_get1_session() is like SSL_get_session(), but increments
6326 the reference count in the SSL_SESSION returned.
6327 [Geoff Thorpe <geoff@eu.c2.net>]
6329 *) Fix for 'req': it was adding a null to request attributes.
6330 Also change the X509_LOOKUP and X509_INFO code to handle
6331 certificate auxiliary information.
6334 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6338 *) Add the possibility to add extra information to the memory leak
6339 detecting output, to form tracebacks, showing from where each
6340 allocation was originated: CRYPTO_push_info("constant string") adds
6341 the string plus current file name and line number to a per-thread
6342 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6343 is like calling CYRPTO_pop_info() until the stack is empty.
6344 Also updated memory leak detection code to be multi-thread-safe.
6347 *) Add options -text and -noout to pkcs7 utility and delete the
6348 encryption options which never did anything. Update docs.
6351 *) Add options to some of the utilities to allow the pass phrase
6352 to be included on either the command line (not recommended on
6353 OSes like Unix) or read from the environment. Update the
6354 manpages and fix a few bugs.
6357 *) Add a few manpages for some of the openssl commands.
6360 *) Fix the -revoke option in ca. It was freeing up memory twice,
6361 leaking and not finding already revoked certificates.
6364 *) Extensive changes to support certificate auxiliary information.
6365 This involves the use of X509_CERT_AUX structure and X509_AUX
6366 functions. An X509_AUX function such as PEM_read_X509_AUX()
6367 can still read in a certificate file in the usual way but it
6368 will also read in any additional "auxiliary information". By
6369 doing things this way a fair degree of compatibility can be
6370 retained: existing certificates can have this information added
6371 using the new 'x509' options.
6373 Current auxiliary information includes an "alias" and some trust
6374 settings. The trust settings will ultimately be used in enhanced
6375 certificate chain verification routines: currently a certificate
6376 can only be trusted if it is self signed and then it is trusted
6380 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6381 The problem was that one of the replacement routines had not been working
6382 since SSLeay releases. For now the offending routine has been replaced
6383 with non-optimised assembler. Even so, this now gives around 95%
6384 performance improvement for 1024 bit RSA signs.
6387 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6388 handling. Most clients have the effective key size in bits equal to
6389 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6390 A few however don't do this and instead use the size of the decrypted key
6391 to determine the RC2 key length and the AlgorithmIdentifier to determine
6392 the effective key length. In this case the effective key length can still
6393 be 40 bits but the key length can be 168 bits for example. This is fixed
6394 by manually forcing an RC2 key into the EVP_PKEY structure because the
6395 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6396 the key length and effective key length are equal.
6399 *) Add a bunch of functions that should simplify the creation of
6400 X509_NAME structures. Now you should be able to do:
6401 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6402 and have it automatically work out the correct field type and fill in
6403 the structures. The more adventurous can try:
6404 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6405 and it will (hopefully) work out the correct multibyte encoding.
6408 *) Change the 'req' utility to use the new field handling and multibyte
6409 copy routines. Before the DN field creation was handled in an ad hoc
6410 way in req, ca, and x509 which was rather broken and didn't support
6411 BMPStrings or UTF8Strings. Since some software doesn't implement
6412 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6413 using the dirstring_type option. See the new comment in the default
6414 openssl.cnf for more info.
6417 *) Make crypto/rand/md_rand.c more robust:
6418 - Assure unique random numbers after fork().
6419 - Make sure that concurrent threads access the global counter and
6420 md serializably so that we never lose entropy in them
6421 or use exactly the same state in multiple threads.
6422 Access to the large state is not always serializable because
6423 the additional locking could be a performance killer, and
6424 md should be large enough anyway.
6427 *) New file apps/app_rand.c with commonly needed functionality
6428 for handling the random seed file.
6430 Use the random seed file in some applications that previously did not:
6432 dsaparam -genkey (which also ignored its '-rand' option),
6435 x509 (when signing).
6436 Except on systems with /dev/urandom, it is crucial to have a random
6437 seed file at least for key creation, DSA signing, and for DH exchanges;
6438 for RSA signatures we could do without one.
6440 gendh and gendsa (unlike genrsa) used to read only the first byte
6441 of each file listed in the '-rand' option. The function as previously
6442 found in genrsa is now in app_rand.c and is used by all programs
6443 that support '-rand'.
6446 *) In RAND_write_file, use mode 0600 for creating files;
6447 don't just chmod when it may be too late.
6450 *) Report an error from X509_STORE_load_locations
6451 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6454 *) New function ASN1_mbstring_copy() this copies a string in either
6455 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6456 into an ASN1_STRING type. A mask of permissible types is passed
6457 and it chooses the "minimal" type to use or an error if not type
6461 *) Add function equivalents to the various macros in asn1.h. The old
6462 macros are retained with an M_ prefix. Code inside the library can
6463 use the M_ macros. External code (including the openssl utility)
6464 should *NOT* in order to be "shared library friendly".
6467 *) Add various functions that can check a certificate's extensions
6468 to see if it usable for various purposes such as SSL client,
6469 server or S/MIME and CAs of these types. This is currently
6470 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6471 verification. Also added a -purpose flag to x509 utility to
6472 print out all the purposes.
6475 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6479 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6480 for, obtain and decode and extension and obtain its critical flag.
6481 This allows all the necessary extension code to be handled in a
6482 single function call.
6485 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6486 platforms. See crypto/rc4/rc4_enc.c for further details.
6489 *) New -noout option to asn1parse. This causes no output to be produced
6490 its main use is when combined with -strparse and -out to extract data
6491 from a file (which may not be in ASN.1 format).
6494 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6495 when producing the local key id.
6496 [Richard Levitte <levitte@stacken.kth.se>]
6498 *) New option -dhparam in s_server. This allows a DH parameter file to be
6499 stated explicitly. If it is not stated then it tries the first server
6500 certificate file. The previous behaviour hard coded the filename
6504 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6505 a public key to be input or output. For example:
6506 openssl rsa -in key.pem -pubout -out pubkey.pem
6507 Also added necessary DSA public key functions to handle this.
6510 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6511 in the message. This was handled by allowing
6512 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6513 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6515 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6516 to the end of the strings whereas this didn't. This would cause problems
6517 if strings read with d2i_ASN1_bytes() were later modified.
6518 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6520 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6521 data and it contains EOF it will end up returning an error. This is
6522 caused by input 46 bytes long. The cause is due to the way base64
6523 BIOs find the start of base64 encoded data. They do this by trying a
6524 trial decode on each line until they find one that works. When they
6525 do a flag is set and it starts again knowing it can pass all the
6526 data directly through the decoder. Unfortunately it doesn't reset
6527 the context it uses. This means that if EOF is reached an attempt
6528 is made to pass two EOFs through the context and this causes the
6529 resulting error. This can also cause other problems as well. As is
6530 usual with these problems it takes *ages* to find and the fix is
6531 trivial: move one line.
6532 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6534 *) Ugly workaround to get s_client and s_server working under Windows. The
6535 old code wouldn't work because it needed to select() on sockets and the
6536 tty (for keypresses and to see if data could be written). Win32 only
6537 supports select() on sockets so we select() with a 1s timeout on the
6538 sockets and then see if any characters are waiting to be read, if none
6539 are present then we retry, we also assume we can always write data to
6540 the tty. This isn't nice because the code then blocks until we've
6541 received a complete line of data and it is effectively polling the
6542 keyboard at 1s intervals: however it's quite a bit better than not
6543 working at all :-) A dedicated Windows application might handle this
6544 with an event loop for example.
6547 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6548 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6549 will be called when RSA_sign() and RSA_verify() are used. This is useful
6550 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6551 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6552 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6553 This necessitated the support of an extra signature type NID_md5_sha1
6554 for SSL signatures and modifications to the SSL library to use it instead
6555 of calling RSA_public_decrypt() and RSA_private_encrypt().
6558 *) Add new -verify -CAfile and -CApath options to the crl program, these
6559 will lookup a CRL issuers certificate and verify the signature in a
6560 similar way to the verify program. Tidy up the crl program so it
6561 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6562 less strict. It will now permit CRL extensions even if it is not
6563 a V2 CRL: this will allow it to tolerate some broken CRLs.
6566 *) Initialize all non-automatic variables each time one of the openssl
6567 sub-programs is started (this is necessary as they may be started
6568 multiple times from the "OpenSSL>" prompt).
6569 [Lennart Bang, Bodo Moeller]
6571 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6572 removing all other RSA functionality (this is what NO_RSA does). This
6573 is so (for example) those in the US can disable those operations covered
6574 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6578 *) Non-copying interface to BIO pairs.
6579 (still largely untested)
6582 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6583 ASCII string. This was handled independently in various places before.
6586 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6587 UTF8 strings a character at a time.
6590 *) Use client_version from client hello to select the protocol
6591 (s23_srvr.c) and for RSA client key exchange verification
6592 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6595 *) Add various utility functions to handle SPKACs, these were previously
6596 handled by poking round in the structure internals. Added new function
6597 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6598 print, verify and generate SPKACs. Based on an original idea from
6599 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6602 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6605 *) Allow the config file extension section to be overwritten on the
6606 command line. Based on an original idea from Massimiliano Pala
6607 <madwolf@comune.modena.it>. The new option is called -extensions
6608 and can be applied to ca, req and x509. Also -reqexts to override
6609 the request extensions in req and -crlexts to override the crl extensions
6613 *) Add new feature to the SPKAC handling in ca. Now you can include
6614 the same field multiple times by preceding it by "XXXX." for example:
6617 this is the same syntax as used in the req config file.
6620 *) Allow certificate extensions to be added to certificate requests. These
6621 are specified in a 'req_extensions' option of the req section of the
6622 config file. They can be printed out with the -text option to req but
6623 are otherwise ignored at present.
6626 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6627 data read consists of only the final block it would not decrypted because
6628 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6629 A misplaced 'break' also meant the decrypted final block might not be
6630 copied until the next read.
6633 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6634 a few extra parameters to the DH structure: these will be useful if
6635 for example we want the value of 'q' or implement X9.42 DH.
6638 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6639 provides hooks that allow the default DSA functions or functions on a
6640 "per key" basis to be replaced. This allows hardware acceleration and
6641 hardware key storage to be handled without major modification to the
6642 library. Also added low level modexp hooks and CRYPTO_EX structure and
6643 associated functions.
6646 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6647 as "read only": it can't be written to and the buffer it points to will
6648 not be freed. Reading from a read only BIO is much more efficient than
6649 a normal memory BIO. This was added because there are several times when
6650 an area of memory needs to be read from a BIO. The previous method was
6651 to create a memory BIO and write the data to it, this results in two
6652 copies of the data and an O(n^2) reading algorithm. There is a new
6653 function BIO_new_mem_buf() which creates a read only memory BIO from
6654 an area of memory. Also modified the PKCS#7 routines to use read only
6658 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6659 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6660 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6661 but a retry condition occured while trying to read the rest.
6664 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6665 NID_pkcs7_encrypted by default: this was wrong since this should almost
6666 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6667 the encrypted data type: this is a more sensible place to put it and it
6668 allows the PKCS#12 code to be tidied up that duplicated this
6672 *) Changed obj_dat.pl script so it takes its input and output files on
6673 the command line. This should avoid shell escape redirection problems
6677 *) Initial support for certificate extension requests, these are included
6678 in things like Xenroll certificate requests. Included functions to allow
6679 extensions to be obtained and added.
6682 *) -crlf option to s_client and s_server for sending newlines as
6683 CRLF (as required by many protocols).
6686 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6688 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6689 [Ralf S. Engelschall]
6691 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6692 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6694 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6698 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6699 DH parameters/keys (q is lost during that conversion, but the resulting
6700 DH parameters contain its length).
6702 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6703 much faster than DH_generate_parameters (which creates parameters
6704 where p = 2*q + 1), and also the smaller q makes DH computations
6705 much more efficient (160-bit exponentiation instead of 1024-bit
6706 exponentiation); so this provides a convenient way to support DHE
6707 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6708 utter importance to use
6709 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6711 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6712 when such DH parameters are used, because otherwise small subgroup
6713 attacks may become possible!
6716 *) Avoid memory leak in i2d_DHparams.
6719 *) Allow the -k option to be used more than once in the enc program:
6720 this allows the same encrypted message to be read by multiple recipients.
6723 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6724 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6725 it will always use the numerical form of the OID, even if it has a short
6729 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6730 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6731 otherwise bn_mod_exp was called. In the case of hardware keys for example
6732 no private key components need be present and it might store extra data
6733 in the RSA structure, which cannot be accessed from bn_mod_exp.
6734 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6735 private key operations.
6738 *) Added support for SPARC Linux.
6741 *) pem_password_cb function type incompatibly changed from
6742 typedef int pem_password_cb(char *buf, int size, int rwflag);
6744 ....(char *buf, int size, int rwflag, void *userdata);
6745 so that applications can pass data to their callbacks:
6746 The PEM[_ASN1]_{read,write}... functions and macros now take an
6747 additional void * argument, which is just handed through whenever
6748 the password callback is called.
6749 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6751 New function SSL_CTX_set_default_passwd_cb_userdata.
6753 Compatibility note: As many C implementations push function arguments
6754 onto the stack in reverse order, the new library version is likely to
6755 interoperate with programs that have been compiled with the old
6756 pem_password_cb definition (PEM_whatever takes some data that
6757 happens to be on the stack as its last argument, and the callback
6758 just ignores this garbage); but there is no guarantee whatsoever that
6761 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6762 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6763 problems not only on Windows, but also on some Unix platforms.
6764 To avoid problematic command lines, these definitions are now in an
6765 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6766 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6769 *) MIPS III/IV assembler module is reimplemented.
6772 *) More DES library cleanups: remove references to srand/rand and
6773 delete an unused file.
6776 *) Add support for the the free Netwide assembler (NASM) under Win32,
6777 since not many people have MASM (ml) and it can be hard to obtain.
6778 This is currently experimental but it seems to work OK and pass all
6779 the tests. Check out INSTALL.W32 for info.
6782 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6783 without temporary keys kept an extra copy of the server key,
6784 and connections with temporary keys did not free everything in case
6788 *) New function RSA_check_key and new openssl rsa option -check
6789 for verifying the consistency of RSA keys.
6790 [Ulf Moeller, Bodo Moeller]
6792 *) Various changes to make Win32 compile work:
6793 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6794 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6795 comparison" warnings.
6796 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6799 *) Add a debugging option to PKCS#5 v2 key generation function: when
6800 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6801 derived keys are printed to stderr.
6804 *) Copy the flags in ASN1_STRING_dup().
6805 [Roman E. Pavlov <pre@mo.msk.ru>]
6807 *) The x509 application mishandled signing requests containing DSA
6808 keys when the signing key was also DSA and the parameters didn't match.
6810 It was supposed to omit the parameters when they matched the signing key:
6811 the verifying software was then supposed to automatically use the CA's
6812 parameters if they were absent from the end user certificate.
6814 Omitting parameters is no longer recommended. The test was also
6815 the wrong way round! This was probably due to unusual behaviour in
6816 EVP_cmp_parameters() which returns 1 if the parameters match.
6817 This meant that parameters were omitted when they *didn't* match and
6818 the certificate was useless. Certificates signed with 'ca' didn't have
6820 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6822 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6823 The interface is as follows:
6824 Applications can use
6825 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6826 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6827 "off" is now the default.
6828 The library internally uses
6829 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6830 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6831 to disable memory-checking temporarily.
6833 Some inconsistent states that previously were possible (and were
6834 even the default) are now avoided.
6836 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6837 with each memory chunk allocated; this is occasionally more helpful
6838 than just having a counter.
6840 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6842 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6846 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6847 which largely parallels "options", but is for changing API behaviour,
6848 whereas "options" are about protocol behaviour.
6849 Initial "mode" flags are:
6851 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6852 a single record has been written.
6853 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6854 retries use the same buffer location.
6855 (But all of the contents must be
6859 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6862 *) Fix problems with no-hmac etc.
6863 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6865 *) New functions RSA_get_default_method(), RSA_set_method() and
6866 RSA_get_method(). These allows replacement of RSA_METHODs without having
6867 to mess around with the internals of an RSA structure.
6870 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6871 Also really enable memory leak checks in openssl.c and in some
6873 [Chad C. Mulligan, Bodo Moeller]
6875 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6876 up the length of negative integers. This has now been simplified to just
6877 store the length when it is first determined and use it later, rather
6878 than trying to keep track of where data is copied and updating it to
6880 [Steve Henson, reported by Brien Wheeler
6881 <bwheeler@authentica-security.com>]
6883 *) Add a new function PKCS7_signatureVerify. This allows the verification
6884 of a PKCS#7 signature but with the signing certificate passed to the
6885 function itself. This contrasts with PKCS7_dataVerify which assumes the
6886 certificate is present in the PKCS#7 structure. This isn't always the
6887 case: certificates can be omitted from a PKCS#7 structure and be
6888 distributed by "out of band" means (such as a certificate database).
6891 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6892 function prototypes in pem.h, also change util/mkdef.pl to add the
6893 necessary function names.
6896 *) mk1mf.pl (used by Windows builds) did not properly read the
6897 options set by Configure in the top level Makefile, and Configure
6898 was not even able to write more than one option correctly.
6899 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6902 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6903 file to be loaded from a BIO or FILE pointer. The BIO version will
6904 for example allow memory BIOs to contain config info.
6907 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6908 Whoever hopes to achieve shared-library compatibility across versions
6909 must use this, not the compile-time macro.
6910 (Exercise 0.9.4: Which is the minimum library version required by
6912 Note: All this applies only to multi-threaded programs, others don't
6916 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6917 through a BIO pair triggered the default case, i.e.
6918 SSLerr(...,SSL_R_UNKNOWN_STATE).
6921 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6922 can use the SSL library even if none of the specific BIOs is
6926 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6927 for the encoded length.
6928 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6930 *) Add initial documentation of the X509V3 functions.
6933 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6934 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6935 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6936 secure PKCS#8 private key format with a high iteration count.
6939 *) Fix determination of Perl interpreter: A perl or perl5
6940 _directory_ in $PATH was also accepted as the interpreter.
6941 [Ralf S. Engelschall]
6943 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6944 wrong with it but it was very old and did things like calling
6945 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6949 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6950 to use the new extension code.
6953 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6954 with macros. This should make it easier to change their form, add extra
6955 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6959 *) Add to configuration table a new entry that can specify an alternative
6960 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6961 according to Mark Crispin <MRC@Panda.COM>.
6965 *) DES CBC did not update the IV. Weird.
6968 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6969 Changing the behaviour of the former might break existing programs --
6970 where IV updating is needed, des_ncbc_encrypt can be used.
6973 *) When bntest is run from "make test" it drives bc to check its
6974 calculations, as well as internally checking them. If an internal check
6975 fails, it needs to cause bc to give a non-zero result or make test carries
6976 on without noticing the failure. Fixed.
6979 *) DES library cleanups.
6982 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6983 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6984 ciphers. NOTE: although the key derivation function has been verified
6985 against some published test vectors it has not been extensively tested
6986 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6990 *) Instead of "mkdir -p", which is not fully portable, use new
6991 Perl script "util/mkdir-p.pl".
6994 *) Rewrite the way password based encryption (PBE) is handled. It used to
6995 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6996 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6997 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6998 the 'parameter' field of the AlgorithmIdentifier is passed to the
6999 underlying key generation function so it must do its own ASN1 parsing.
7000 This has also changed the EVP_PBE_CipherInit() function which now has a
7001 'parameter' argument instead of literal salt and iteration count values
7002 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7005 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7006 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7007 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7008 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7009 value was just used as a "magic string" and not used directly its
7010 value doesn't matter.
7013 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7017 *) "linux-sparc64" configuration (ultrapenguin).
7018 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7019 "linux-sparc" configuration.
7020 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7022 *) config now generates no-xxx options for missing ciphers.
7025 *) Support the EBCDIC character set (work in progress).
7026 File ebcdic.c not yet included because it has a different license.
7027 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7029 *) Support BS2000/OSD-POSIX.
7030 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7032 *) Make callbacks for key generation use void * instead of char *.
7035 *) Make S/MIME samples compile (not yet tested).
7038 *) Additional typesafe stacks.
7041 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7045 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7047 *) New configuration variant "sco5-gcc".
7049 *) Updated some demos.
7050 [Sean O Riordain, Wade Scholine]
7052 *) Add missing BIO_free at exit of pkcs12 application.
7055 *) Fix memory leak in conf.c.
7058 *) Updates for Win32 to assembler version of MD5.
7061 *) Set #! path to perl in apps/der_chop to where we found it
7062 instead of using a fixed path.
7065 *) SHA library changes for irix64-mips4-cc.
7068 *) Improvements for VMS support.
7072 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7074 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7075 This also avoids the problems with SC4.2 and unpatched SC5.
7076 [Andy Polyakov <appro@fy.chalmers.se>]
7078 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7079 These are required because of the typesafe stack would otherwise break
7080 existing code. If old code used a structure member which used to be STACK
7081 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7082 sk_num or sk_value it would produce an error because the num, data members
7083 are not present in STACK_OF. Now it just produces a warning. sk_set
7084 replaces the old method of assigning a value to sk_value
7085 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7086 that does this will no longer work (and should use sk_set instead) but
7087 this could be regarded as a "questionable" behaviour anyway.
7090 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7091 correctly handle encrypted S/MIME data.
7094 *) Change type of various DES function arguments from des_cblock
7095 (which means, in function argument declarations, pointer to char)
7096 to des_cblock * (meaning pointer to array with 8 char elements),
7097 which allows the compiler to do more typechecking; it was like
7098 that back in SSLeay, but with lots of ugly casts.
7100 Introduce new type const_des_cblock.
7103 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7104 problems: find RecipientInfo structure that matches recipient certificate
7105 and initialise the ASN1 structures properly based on passed cipher.
7108 *) Belatedly make the BN tests actually check the results.
7111 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7112 to and from BNs: it was completely broken. New compilation option
7113 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7114 key elements as negative integers.
7117 *) Reorganize and speed up MD5.
7118 [Andy Polyakov <appro@fy.chalmers.se>]
7121 [Richard Levitte <richard@levitte.org>]
7123 *) New option -out to asn1parse to allow the parsed structure to be
7124 output to a file. This is most useful when combined with the -strparse
7125 option to examine the output of things like OCTET STRINGS.
7128 *) Make SSL library a little more fool-proof by not requiring any longer
7129 that SSL_set_{accept,connect}_state be called before
7130 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7131 in many applications because usually everything *appeared* to work as
7132 intended anyway -- now it really works as intended).
7135 *) Move openssl.cnf out of lib/.
7138 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7139 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7140 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7141 [Ralf S. Engelschall]
7143 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7144 handle PKCS#7 enveloped data properly.
7145 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7147 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7148 copying pointers. The cert_st handling is changed by this in
7149 various ways (and thus what used to be known as ctx->default_cert
7150 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7151 any longer when s->cert does not give us what we need).
7152 ssl_cert_instantiate becomes obsolete by this change.
7153 As soon as we've got the new code right (possibly it already is?),
7154 we have solved a couple of bugs of the earlier code where s->cert
7155 was used as if it could not have been shared with other SSL structures.
7157 Note that using the SSL API in certain dirty ways now will result
7158 in different behaviour than observed with earlier library versions:
7159 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7160 does not influence s as it used to.
7162 In order to clean up things more thoroughly, inside SSL_SESSION
7163 we don't use CERT any longer, but a new structure SESS_CERT
7164 that holds per-session data (if available); currently, this is
7165 the peer's certificate chain and, for clients, the server's certificate
7166 and temporary key. CERT holds only those values that can have
7167 meaningful defaults in an SSL_CTX.
7170 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7171 from the internal representation. Various PKCS#7 fixes: remove some
7172 evil casts and set the enc_dig_alg field properly based on the signing
7176 *) Allow PKCS#12 password to be set from the command line or the
7177 environment. Let 'ca' get its config file name from the environment
7178 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7182 *) Allow certificate policies extension to use an IA5STRING for the
7183 organization field. This is contrary to the PKIX definition but
7184 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7188 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7189 without disallowing inline assembler and the like for non-pedantic builds.
7192 *) Support Borland C++ builder.
7193 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7198 *) SHA-1 cleanups and performance enhancements.
7199 [Andy Polyakov <appro@fy.chalmers.se>]
7201 *) Sparc v8plus assembler for the bignum library.
7202 [Andy Polyakov <appro@fy.chalmers.se>]
7204 *) Accept any -xxx and +xxx compiler options in Configure.
7207 *) Update HPUX configuration.
7210 *) Add missing sk_<type>_unshift() function to safestack.h
7211 [Ralf S. Engelschall]
7213 *) New function SSL_CTX_use_certificate_chain_file that sets the
7214 "extra_cert"s in addition to the certificate. (This makes sense
7215 only for "PEM" format files, as chains as a whole are not
7219 *) Support verify_depth from the SSL API.
7220 x509_vfy.c had what can be considered an off-by-one-error:
7221 Its depth (which was not part of the external interface)
7222 was actually counting the number of certificates in a chain;
7223 now it really counts the depth.
7226 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7227 instead of X509err, which often resulted in confusing error
7228 messages since the error codes are not globally unique
7229 (e.g. an alleged error in ssl3_accept when a certificate
7230 didn't match the private key).
7232 *) New function SSL_CTX_set_session_id_context that allows to set a default
7233 value (so that you don't need SSL_set_session_id_context for each
7234 connection using the SSL_CTX).
7237 *) OAEP decoding bug fix.
7240 *) Support INSTALL_PREFIX for package builders, as proposed by
7244 *) New Configure options "threads" and "no-threads". For systems
7245 where the proper compiler options are known (currently Solaris
7246 and Linux), "threads" is the default.
7249 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7252 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7253 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7254 such as /usr/local/bin.
7257 *) "make linux-shared" to build shared libraries.
7258 [Niels Poppe <niels@netbox.org>]
7260 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7263 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7264 extension adding in x509 utility.
7267 *) Remove NOPROTO sections and error code comments.
7270 *) Partial rewrite of the DEF file generator to now parse the ANSI
7274 *) New Configure options --prefix=DIR and --openssldir=DIR.
7277 *) Complete rewrite of the error code script(s). It is all now handled
7278 by one script at the top level which handles error code gathering,
7279 header rewriting and C source file generation. It should be much better
7280 than the old method: it now uses a modified version of Ulf's parser to
7281 read the ANSI prototypes in all header files (thus the old K&R definitions
7282 aren't needed for error creation any more) and do a better job of
7283 translating function codes into names. The old 'ASN1 error code imbedded
7284 in a comment' is no longer necessary and it doesn't use .err files which
7285 have now been deleted. Also the error code call doesn't have to appear all
7286 on one line (which resulted in some large lines...).
7289 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7292 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7293 0 (which usually indicates a closed connection), but continue reading.
7296 *) Fix some race conditions.
7299 *) Add support for CRL distribution points extension. Add Certificate
7300 Policies and CRL distribution points documentation.
7303 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7306 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7307 8 of keying material. Merlin has also confirmed interop with this fix
7308 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7309 [Merlin Hughes <merlin@baltimore.ie>]
7311 *) Fix lots of warnings.
7312 [Richard Levitte <levitte@stacken.kth.se>]
7314 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7315 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7316 [Richard Levitte <levitte@stacken.kth.se>]
7318 *) Fix problems with sizeof(long) == 8.
7319 [Andy Polyakov <appro@fy.chalmers.se>]
7321 *) Change functions to ANSI C.
7324 *) Fix typos in error codes.
7325 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7327 *) Remove defunct assembler files from Configure.
7330 *) SPARC v8 assembler BIGNUM implementation.
7331 [Andy Polyakov <appro@fy.chalmers.se>]
7333 *) Support for Certificate Policies extension: both print and set.
7334 Various additions to support the r2i method this uses.
7337 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7338 return a const string when you are expecting an allocated buffer.
7341 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7342 types DirectoryString and DisplayText.
7345 *) Add code to allow r2i extensions to access the configuration database,
7346 add an LHASH database driver and add several ctx helper functions.
7349 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7350 fail when they extended the size of a BIGNUM.
7353 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7354 support typesafe stack.
7357 *) Fix typo in SSL_[gs]et_options().
7358 [Nils Frostberg <nils@medcom.se>]
7360 *) Delete various functions and files that belonged to the (now obsolete)
7361 old X509V3 handling code.
7364 *) New Configure option "rsaref".
7367 *) Don't auto-generate pem.h.
7370 *) Introduce type-safe ASN.1 SETs.
7373 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7374 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7376 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7377 that links with OpenSSL (well at least cause lots of warnings), but fear
7378 not: the conversion is trivial, and it eliminates loads of evil casts. A
7379 few STACKed things have been converted already. Feel free to convert more.
7380 In the fullness of time, I'll do away with the STACK type altogether.
7383 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7384 specified in <certfile> by updating the entry in the index.txt file.
7385 This way one no longer has to edit the index.txt file manually for
7386 revoking a certificate. The -revoke option does the gory details now.
7387 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7389 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7390 `-text' option at all and this way the `-noout -text' combination was
7391 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7392 [Ralf S. Engelschall]
7394 *) Make sure a corresponding plain text error message exists for the
7395 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7396 verify callback function determined that a certificate was revoked.
7397 [Ralf S. Engelschall]
7399 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7400 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7401 all available cipers including rc5, which was forgotten until now.
7402 In order to let the testing shell script know which algorithms
7403 are available, a new (up to now undocumented) command
7404 "openssl list-cipher-commands" is used.
7407 *) Bugfix: s_client occasionally would sleep in select() when
7408 it should have checked SSL_pending() first.
7411 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7412 the raw DSA values prior to ASN.1 encoding.
7415 *) Tweaks to Configure
7416 [Niels Poppe <niels@netbox.org>]
7418 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7422 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7425 *) New config option to avoid instructions that are illegal on the 80386.
7426 The default code is faster, but requires at least a 486.
7429 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7430 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7431 same as SSL2_VERSION anyway.
7434 *) New "-showcerts" option for s_client.
7437 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7438 application. Various cleanups and fixes.
7441 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7442 modify error routines to work internally. Add error codes and PBE init
7443 to library startup routines.
7446 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7447 packing functions to asn1 and evp. Changed function names and error
7448 codes along the way.
7451 *) PKCS12 integration: and so it begins... First of several patches to
7452 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7453 objects to objects.h
7456 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7457 and display support for Thawte strong extranet extension.
7460 *) Add LinuxPPC support.
7461 [Jeff Dubrule <igor@pobox.org>]
7463 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7464 bn_div_words in alpha.s.
7465 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7467 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7468 OAEP isn't supported when OpenSSL is built with RSAref.
7469 [Ulf Moeller <ulf@fitug.de>]
7471 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7472 so they no longer are missing under -DNOPROTO.
7473 [Soren S. Jorvang <soren@t.dk>]
7476 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7478 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7479 doesn't work when the session is reused. Coming soon!
7482 *) Fix a security hole, that allows sessions to be reused in the wrong
7483 context thus bypassing client cert protection! All software that uses
7484 client certs and session caches in multiple contexts NEEDS PATCHING to
7485 allow session reuse! A fuller solution is in the works.
7486 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7488 *) Some more source tree cleanups (removed obsolete files
7489 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7490 permission on "config" script to be executable) and a fix for the INSTALL
7492 [Ulf Moeller <ulf@fitug.de>]
7494 *) Remove some legacy and erroneous uses of malloc, free instead of
7496 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7498 *) Make rsa_oaep_test return non-zero on error.
7499 [Ulf Moeller <ulf@fitug.de>]
7501 *) Add support for native Solaris shared libraries. Configure
7502 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7503 if someone would make that last step automatic.
7504 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7506 *) ctx_size was not built with the right compiler during "make links". Fixed.
7509 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7510 except NULL ciphers". This means the default cipher list will no longer
7511 enable NULL ciphers. They need to be specifically enabled e.g. with
7512 the string "DEFAULT:eNULL".
7515 *) Fix to RSA private encryption routines: if p < q then it would
7516 occasionally produce an invalid result. This will only happen with
7517 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7520 *) Be less restrictive and allow also `perl util/perlpath.pl
7521 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7522 because this way one can also use an interpreter named `perl5' (which is
7523 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7524 installed as `perl').
7525 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7527 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7528 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7530 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7531 advapi32.lib to Win32 build and change the pem test comparision
7532 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7533 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7534 and crypto/des/ede_cbcm_enc.c.
7537 *) DES quad checksum was broken on big-endian architectures. Fixed.
7540 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7541 Win32 test batch file so it (might) work again. The Win32 test batch file
7542 is horrible: I feel ill....
7545 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7546 in e_os.h. Audit of header files to check ANSI and non ANSI
7547 sections: 10 functions were absent from non ANSI section and not exported
7548 from Windows DLLs. Fixed up libeay.num for new functions.
7551 *) Make `openssl version' output lines consistent.
7552 [Ralf S. Engelschall]
7554 *) Fix Win32 symbol export lists for BIO functions: Added
7555 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7556 to ms/libeay{16,32}.def.
7557 [Ralf S. Engelschall]
7559 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7560 fine under Unix and passes some trivial tests I've now added. But the
7561 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7562 added to make sure no one expects that this stuff really works in the
7563 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7564 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7566 [Ralf S. Engelschall]
7568 *) Fix the generation of two part addresses in perl.
7569 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7571 *) Add config entry for Linux on MIPS.
7572 [John Tobey <jtobey@channel1.com>]
7574 *) Make links whenever Configure is run, unless we are on Windoze.
7577 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7578 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7582 *) Add a useful kludge to allow package maintainers to specify compiler and
7583 other platforms details on the command line without having to patch the
7584 Configure script everytime: One now can use ``perl Configure
7585 <id>:<details>'', i.e. platform ids are allowed to have details appended
7586 to them (seperated by colons). This is treated as there would be a static
7587 pre-configured entry in Configure's %table under key <id> with value
7588 <details> and ``perl Configure <id>'' is called. So, when you want to
7589 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7590 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7591 now, which overrides the FreeBSD-elf entry on-the-fly.
7592 [Ralf S. Engelschall]
7594 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7597 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7598 on the `perl Configure ...' command line. This way one can compile
7599 OpenSSL libraries with Position Independent Code (PIC) which is needed
7600 for linking it into DSOs.
7601 [Ralf S. Engelschall]
7603 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7607 *) Cleaned up the LICENSE document: The official contact for any license
7608 questions now is the OpenSSL core team under openssl-core@openssl.org.
7609 And add a paragraph about the dual-license situation to make sure people
7610 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7611 to the OpenSSL toolkit.
7612 [Ralf S. Engelschall]
7614 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7615 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7616 Additonally cleaned up the `make links' target: Remove unnecessary
7617 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7618 to speed processing and no longer clutter the display with confusing
7619 stuff. Instead only the actually done links are displayed.
7620 [Ralf S. Engelschall]
7622 *) Permit null encryption ciphersuites, used for authentication only. It used
7623 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7624 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7628 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7629 signed attributes when verifying signatures (this would break them),
7630 the detached data encoding was wrong and public keys obtained using
7631 X509_get_pubkey() weren't freed.
7634 *) Add text documentation for the BUFFER functions. Also added a work around
7635 to a Win95 console bug. This was triggered by the password read stuff: the
7636 last character typed gets carried over to the next fread(). If you were
7637 generating a new cert request using 'req' for example then the last
7638 character of the passphrase would be CR which would then enter the first
7642 *) Added the new `Includes OpenSSL Cryptography Software' button as
7643 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7644 button and can be used by applications based on OpenSSL to show the
7645 relationship to the OpenSSL project.
7646 [Ralf S. Engelschall]
7648 *) Remove confusing variables in function signatures in files
7649 ssl/ssl_lib.c and ssl/ssl.h.
7650 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7652 *) Don't install bss_file.c under PREFIX/include/
7653 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7655 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7656 functions that return function pointers and has support for NT specific
7657 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7658 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7659 unsigned to signed types: this was killing the Win32 compile.
7662 *) Add new certificate file to stack functions,
7663 SSL_add_dir_cert_subjects_to_stack() and
7664 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7665 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7666 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7667 This means that Apache-SSL and similar packages don't have to mess around
7668 to add as many CAs as they want to the preferred list.
7671 *) Experiment with doxygen documentation. Currently only partially applied to
7673 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7674 openssl.doxy as the configuration file.
7677 *) Get rid of remaining C++-style comments which strict C compilers hate.
7678 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7680 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7681 compiled in by default: it has problems with large keys.
7684 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7685 DH private keys and/or callback functions which directly correspond to
7686 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7687 is needed for applications which have to configure certificates on a
7688 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7690 For the RSA certificate situation is makes no difference, but
7691 for the DSA certificate situation this fixes the "no shared cipher"
7692 problem where the OpenSSL cipher selection procedure failed because the
7693 temporary keys were not overtaken from the context and the API provided
7694 no way to reconfigure them.
7695 The new functions now let applications reconfigure the stuff and they
7696 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7697 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7698 non-public-API function ssl_cert_instantiate() is used as a helper
7699 function and also to reduce code redundancy inside ssl_rsa.c.
7700 [Ralf S. Engelschall]
7702 *) Move s_server -dcert and -dkey options out of the undocumented feature
7703 area because they are useful for the DSA situation and should be
7704 recognized by the users.
7705 [Ralf S. Engelschall]
7707 *) Fix the cipher decision scheme for export ciphers: the export bits are
7708 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7709 SSL_EXP_MASK. So, the original variable has to be used instead of the
7710 already masked variable.
7711 [Richard Levitte <levitte@stacken.kth.se>]
7713 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7714 [Richard Levitte <levitte@stacken.kth.se>]
7716 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7717 from `int' to `unsigned int' because it's a length and initialized by
7718 EVP_DigestFinal() which expects an `unsigned int *'.
7719 [Richard Levitte <levitte@stacken.kth.se>]
7721 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7722 script. Instead use the usual Shell->Perl transition trick.
7723 [Ralf S. Engelschall]
7725 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7726 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7727 -noout -modulus' as it's already the case for `openssl rsa -noout
7728 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7729 currently the public key is printed (a decision which was already done by
7730 `openssl dsa -modulus' in the past) which serves a similar purpose.
7731 Additionally the NO_RSA no longer completely removes the whole -modulus
7732 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7734 [Ralf S. Engelschall]
7736 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7737 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7738 [Arne Ansper <arne@ats.cyber.ee>]
7740 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7741 to be added. Now both 'req' and 'ca' can use new objects defined in the
7745 *) Add cool BIO that does syslog (or event log on NT).
7746 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7748 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7749 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7750 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7751 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7754 *) Add preliminary config info for new extension code.
7757 *) Make RSA_NO_PADDING really use no padding.
7758 [Ulf Moeller <ulf@fitug.de>]
7760 *) Generate errors when private/public key check is done.
7763 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7764 for some CRL extensions and new objects added.
7767 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7768 key usage extension and fuller support for authority key id.
7771 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7772 padding method for RSA, which is recommended for new applications in PKCS
7773 #1 v2.0 (RFC 2437, October 1998).
7774 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7775 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7776 against Bleichbacher's attack on RSA.
7777 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7780 *) Updates to the new SSL compression code
7781 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7783 *) Fix so that the version number in the master secret, when passed
7784 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7785 (because the server will not accept higher), that the version number
7786 is 0x03,0x01, not 0x03,0x00
7787 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7789 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7790 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7791 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7794 *) Support for RAW extensions where an arbitrary extension can be
7795 created by including its DER encoding. See apps/openssl.cnf for
7799 *) Make sure latest Perl versions don't interpret some generated C array
7800 code as Perl array code in the crypto/err/err_genc.pl script.
7801 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7803 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7804 not many people have the assembler. Various Win32 compilation fixes and
7805 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7809 *) Modify configure script 'Configure' to automatically create crypto/date.h
7810 file under Win32 and also build pem.h from pem.org. New script
7811 util/mkfiles.pl to create the MINFO file on environments that can't do a
7812 'make files': perl util/mkfiles.pl >MINFO should work.
7815 *) Major rework of DES function declarations, in the pursuit of correctness
7816 and purity. As a result, many evil casts evaporated, and some weirdness,
7817 too. You may find this causes warnings in your code. Zapping your evil
7818 casts will probably fix them. Mostly.
7821 *) Fix for a typo in asn1.h. Bug fix to object creation script
7822 obj_dat.pl. It considered a zero in an object definition to mean
7823 "end of object": none of the objects in objects.h have any zeros
7824 so it wasn't spotted.
7825 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7827 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7828 Masking (CBCM). In the absence of test vectors, the best I have been able
7829 to do is check that the decrypt undoes the encrypt, so far. Send me test
7830 vectors if you have them.
7833 *) Correct calculation of key length for export ciphers (too much space was
7834 allocated for null ciphers). This has not been tested!
7837 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7838 message is now correct (it understands "crypto" and "ssl" on its
7839 command line). There is also now an "update" option. This will update
7840 the util/ssleay.num and util/libeay.num files with any new functions.
7842 perl util/mkdef.pl crypto ssl update
7843 it will update them.
7846 *) Overhauled the Perl interface (perl/*):
7847 - ported BN stuff to OpenSSL's different BN library
7848 - made the perl/ source tree CVS-aware
7849 - renamed the package from SSLeay to OpenSSL (the files still contain
7850 their history because I've copied them in the repository)
7851 - removed obsolete files (the test scripts will be replaced
7852 by better Test::Harness variants in the future)
7853 [Ralf S. Engelschall]
7855 *) First cut for a very conservative source tree cleanup:
7856 1. merge various obsolete readme texts into doc/ssleay.txt
7857 where we collect the old documents and readme texts.
7858 2. remove the first part of files where I'm already sure that we no
7859 longer need them because of three reasons: either they are just temporary
7860 files which were left by Eric or they are preserved original files where
7861 I've verified that the diff is also available in the CVS via "cvs diff
7862 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7863 the crypto/md/ stuff).
7864 [Ralf S. Engelschall]
7866 *) More extension code. Incomplete support for subject and issuer alt
7867 name, issuer and authority key id. Change the i2v function parameters
7868 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7869 what that's for :-) Fix to ASN1 macro which messed up
7870 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7873 *) Preliminary support for ENUMERATED type. This is largely copied from the
7877 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7878 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7880 *) Make sure `make rehash' target really finds the `openssl' program.
7881 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7883 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7884 like to hear about it if this slows down other processors.
7887 *) Add CygWin32 platform information to Configure script.
7888 [Alan Batie <batie@aahz.jf.intel.com>]
7890 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7891 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7893 *) New program nseq to manipulate netscape certificate sequences
7896 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7900 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7901 but the BN code had some problems that would cause failures when
7902 doing certificate verification and some other functions.
7903 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7905 *) Add ASN1 and PEM code to support netscape certificate sequences.
7908 *) Add ASN1 and PEM code to support netscape certificate sequences.
7911 *) Add several PKIX and private extended key usage OIDs.
7914 *) Modify the 'ca' program to handle the new extension code. Modify
7915 openssl.cnf for new extension format, add comments.
7918 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7919 and add a sample to openssl.cnf so req -x509 now adds appropriate
7923 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7924 error code, add initial support to X509_print() and x509 application.
7927 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7928 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7929 stuff is currently isolated and isn't even compiled yet.
7932 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7933 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7934 Removed the versions check from X509 routines when loading extensions:
7935 this allows certain broken certificates that don't set the version
7936 properly to be processed.
7939 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7940 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7941 can still be regenerated with "make depend".
7944 *) Spelling mistake in C version of CAST-128.
7945 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7947 *) Changes to the error generation code. The perl script err-code.pl
7948 now reads in the old error codes and retains the old numbers, only
7949 adding new ones if necessary. It also only changes the .err files if new
7950 codes are added. The makefiles have been modified to only insert errors
7951 when needed (to avoid needlessly modifying header files). This is done
7952 by only inserting errors if the .err file is newer than the auto generated
7953 C file. To rebuild all the error codes from scratch (the old behaviour)
7954 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7955 or delete all the .err files.
7958 *) CAST-128 was incorrectly implemented for short keys. The C version has
7959 been fixed, but is untested. The assembler versions are also fixed, but
7960 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7961 to regenerate it if needed.
7962 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7963 Hagino <itojun@kame.net>]
7965 *) File was opened incorrectly in randfile.c.
7966 [Ulf Möller <ulf@fitug.de>]
7968 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7969 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7970 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7971 al: it's just almost always a UTCTime. Note this patch adds new error
7972 codes so do a "make errors" if there are problems.
7975 *) Correct Linux 1 recognition in config.
7976 [Ulf Möller <ulf@fitug.de>]
7978 *) Remove pointless MD5 hash when using DSA keys in ca.
7979 [Anonymous <nobody@replay.com>]
7981 *) Generate an error if given an empty string as a cert directory. Also
7982 generate an error if handed NULL (previously returned 0 to indicate an
7983 error, but didn't set one).
7984 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7986 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7989 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7990 parameters. This was causing a warning which killed off the Win32 compile.
7993 *) Remove C++ style comments from crypto/bn/bn_local.h.
7994 [Neil Costigan <neil.costigan@celocom.com>]
7996 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7997 based on a text string, looking up short and long names and finally
7998 "dot" format. The "dot" format stuff didn't work. Added new function
7999 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8000 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8001 OID is not part of the table.
8004 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8005 X509_LOOKUP_by_alias().
8008 *) Sort openssl functions by name.
8011 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8012 encryption from sample DSA keys (in case anyone is interested the password
8016 *) Make _all_ *_free functions accept a NULL pointer.
8017 [Frans Heymans <fheymans@isaserver.be>]
8019 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8021 [Anonymous <nobody@replay.com>]
8023 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8024 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8026 *) Don't blow it for numeric -newkey arguments to apps/req.
8027 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8029 *) Temp key "for export" tests were wrong in s3_srvr.c.
8030 [Anonymous <nobody@replay.com>]
8032 *) Add prototype for temp key callback functions
8033 SSL_CTX_set_tmp_{rsa,dh}_callback().
8036 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8037 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8040 *) X509_name_add_entry() freed the wrong thing after an error.
8041 [Arne Ansper <arne@ats.cyber.ee>]
8043 *) rsa_eay.c would attempt to free a NULL context.
8044 [Arne Ansper <arne@ats.cyber.ee>]
8046 *) BIO_s_socket() had a broken should_retry() on Windoze.
8047 [Arne Ansper <arne@ats.cyber.ee>]
8049 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8050 [Arne Ansper <arne@ats.cyber.ee>]
8052 *) Make sure the already existing X509_STORE->depth variable is initialized
8053 in X509_STORE_new(), but document the fact that this variable is still
8054 unused in the certificate verification process.
8055 [Ralf S. Engelschall]
8057 *) Fix the various library and apps files to free up pkeys obtained from
8058 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8061 *) Fix reference counting in X509_PUBKEY_get(). This makes
8062 demos/maurice/example2.c work, amongst others, probably.
8063 [Steve Henson and Ben Laurie]
8065 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8066 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8067 are no longer created. This way we have a single and consistent command
8068 line interface `openssl <command>', similar to `cvs <command>'.
8069 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8071 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8072 BIT STRING wrapper always have zero unused bits.
8075 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8078 *) Make the top-level INSTALL documentation easier to understand.
8081 *) Makefiles updated to exit if an error occurs in a sub-directory
8082 make (including if user presses ^C) [Paul Sutton]
8084 *) Make Montgomery context stuff explicit in RSA data structure.
8087 *) Fix build order of pem and err to allow for generated pem.h.
8090 *) Fix renumbering bug in X509_NAME_delete_entry().
8093 *) Enhanced the err-ins.pl script so it makes the error library number
8094 global and can add a library name. This is needed for external ASN1 and
8095 other error libraries.
8098 *) Fixed sk_insert which never worked properly.
8101 *) Fix ASN1 macros so they can handle indefinite length construted
8102 EXPLICIT tags. Some non standard certificates use these: they can now
8106 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8107 into a single doc/ssleay.txt bundle. This way the information is still
8108 preserved but no longer messes up this directory. Now it's new room for
8109 the new set of documenation files.
8110 [Ralf S. Engelschall]
8112 *) SETs were incorrectly DER encoded. This was a major pain, because they
8113 shared code with SEQUENCEs, which aren't coded the same. This means that
8114 almost everything to do with SETs or SEQUENCEs has either changed name or
8115 number of arguments.
8116 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8118 *) Fix test data to work with the above.
8121 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8122 was already fixed by Eric for 0.9.1 it seems.
8123 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8125 *) Autodetect FreeBSD3.
8128 *) Fix various bugs in Configure. This affects the following platforms:
8132 unixware-2.0-pentium
8136 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8137 before they are needed.
8140 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8144 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8146 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8147 changed SSLeay to OpenSSL in version strings.
8148 [Ralf S. Engelschall]
8150 *) Some fixups to the top-level documents.
8153 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8154 because the symlink to include/ was missing.
8155 [Ralf S. Engelschall]
8157 *) Incorporated the popular no-RSA/DSA-only patches
8158 which allow to compile a RSA-free SSLeay.
8159 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8161 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8162 when "ssleay" is still not found.
8163 [Ralf S. Engelschall]
8165 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8166 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8168 *) Updated the README file.
8169 [Ralf S. Engelschall]
8171 *) Added various .cvsignore files in the CVS repository subdirs
8172 to make a "cvs update" really silent.
8173 [Ralf S. Engelschall]
8175 *) Recompiled the error-definition header files and added
8176 missing symbols to the Win32 linker tables.
8177 [Ralf S. Engelschall]
8179 *) Cleaned up the top-level documents;
8180 o new files: CHANGES and LICENSE
8181 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8182 o merged COPYRIGHT into LICENSE
8183 o removed obsolete TODO file
8184 o renamed MICROSOFT to INSTALL.W32
8185 [Ralf S. Engelschall]
8187 *) Removed dummy files from the 0.9.1b source tree:
8188 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8189 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8190 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8191 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8192 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8193 [Ralf S. Engelschall]
8195 *) Added various platform portability fixes.
8198 *) The Genesis of the OpenSSL rpject:
8199 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8200 Young and Tim J. Hudson created while they were working for C2Net until
8202 [The OpenSSL Project]
8205 Changes between 0.9.0b and 0.9.1b [not released]
8207 *) Updated a few CA certificates under certs/
8210 *) Changed some BIGNUM api stuff.
8213 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8214 DGUX x86, Linux Alpha, etc.
8217 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8218 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8222 *) Add -strparse option to asn1pars program which parses nested
8224 [Dr Stephen Henson <shenson@bigfoot.com>]
8226 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8229 *) DSA fix for "ca" program.
8232 *) Added "-genkey" option to "dsaparam" program.
8235 *) Added RIPE MD160 (rmd160) message digest.
8238 *) Added -a (all) option to "ssleay version" command.
8241 *) Added PLATFORM define which is the id given to Configure.
8244 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8247 *) Extended the ASN.1 parser routines.
8250 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8253 *) Added a BN_CTX to the BN library.
8256 *) Fixed the weak key values in DES library
8259 *) Changed API in EVP library for cipher aliases.
8262 *) Added support for RC2/64bit cipher.
8265 *) Converted the lhash library to the crypto/mem.c functions.
8268 *) Added more recognized ASN.1 object ids.
8271 *) Added more RSA padding checks for SSL/TLS.
8274 *) Added BIO proxy/filter functionality.
8277 *) Added extra_certs to SSL_CTX which can be used
8278 send extra CA certificates to the client in the CA cert chain sending
8279 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8282 *) Now Fortezza is denied in the authentication phase because
8283 this is key exchange mechanism is not supported by SSLeay at all.
8286 *) Additional PKCS1 checks.
8289 *) Support the string "TLSv1" for all TLS v1 ciphers.
8292 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8293 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8296 *) Fixed a few memory leaks.
8299 *) Fixed various code and comment typos.
8302 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8303 bytes sent in the client random.
8304 [Edward Bishop <ebishop@spyglass.com>]
projects / oweals / openssl.git / blob