5 Changes between 0.9.8r and 0.9.8s [xx XXX xxxx]
7 *) Fix the BIO_f_buffer() implementation (which was mixing different
8 interpretations of the '..._len' fields).
9 [Adam Langley (Google)]
11 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
12 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
13 threads won't reuse the same blinding coefficients.
15 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
16 lock to call BN_BLINDING_invert_ex, and avoids one use of
17 BN_BLINDING_update for each BN_BLINDING structure (previously,
18 the last update always remained unused).
19 [Emilia Käsper (Google)]
21 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
22 for multi-threaded use of ECDH.
23 [Adam Langley (Google)]
25 *) Fix x509_name_ex_d2i memory leak on bad inputs.
28 *) Add protection against ECDSA timing attacks as mentioned in the paper
29 by Billy Bob Brumley and Nicola Tuveri, see:
31 http://eprint.iacr.org/2011/232.pdf
33 [Billy Bob Brumley and Nicola Tuveri]
35 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
37 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
38 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
40 *) Fix bug in string printing code: if *any* escaping is enabled we must
41 escape the escape character (backslash) or the resulting string is
45 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
47 *) Disable code workaround for ancient and obsolete Netscape browsers
48 and servers: an attacker can use it in a ciphersuite downgrade attack.
49 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
52 *) Fixed J-PAKE implementation error, originally discovered by
53 Sebastien Martini, further info and confirmation from Stefan
54 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
57 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
59 *) Fix extension code to avoid race conditions which can result in a buffer
60 overrun vulnerability: resumed sessions must not be modified as they can
61 be shared by multiple threads. CVE-2010-3864
64 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
67 *) Don't reencode certificate when calculating signature: cache and use
68 the original encoding instead. This makes signature verification of
69 some broken encodings work correctly.
72 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
73 is also one of the inputs.
74 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
76 *) Don't repeatedly append PBE algorithms to table if they already exist.
77 Sort table on each new add. This effectively makes the table read only
78 after all algorithms are added and subsequent calls to PKCS12_pbe_add
82 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
84 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
87 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
88 access or freeing data twice (CVE-2010-0742)
89 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
91 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
92 common in certificates and some applications which only call
93 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
97 Reduce copying into .apps and .test in makevms.com
98 Don't try to use blank CA certificate in CA.com
99 Allow use of C files from original directories in maketests.com
100 [Steven M. Schweda" <sms@antinode.info>]
102 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
104 *) When rejecting SSL/TLS records due to an incorrect version number, never
105 update s->server with a new major version number. As of
106 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
107 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
108 the previous behavior could result in a read attempt at NULL when
109 receiving specific incorrect SSL/TLS records once record payload
110 protection is active. (CVE-2010-0740)
111 [Bodo Moeller, Adam Langley <agl@chromium.org>]
113 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
114 could be crashed if the relevant tables were not present (e.g. chrooted).
115 [Tomas Hoger <thoger@redhat.com>]
117 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
119 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
120 [Martin Olsson, Neel Mehta]
122 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
123 accommodate for stack sorting, always a write lock!).
126 *) On some versions of WIN32 Heap32Next is very slow. This can cause
127 excessive delays in the RAND_poll(): over a minute. As a workaround
128 include a time check in the inner Heap32Next loop too.
131 *) The code that handled flushing of data in SSL/TLS originally used the
132 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
133 the problem outlined in PR#1949. The fix suggested there however can
134 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
135 of Apache). So instead simplify the code to flush unconditionally.
136 This should be fine since flushing with no data to flush is a no op.
139 *) Handle TLS versions 2.0 and later properly and correctly use the
140 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
141 off ancient servers have a habit of sticking around for a while...
144 *) Modify compression code so it frees up structures without using the
145 ex_data callbacks. This works around a problem where some applications
146 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
147 restarting) then use compression (e.g. SSL with compression) later.
148 This results in significant per-connection memory leaks and
149 has caused some security issues including CVE-2008-1678 and
153 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
154 change when encrypting or decrypting.
157 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
158 connect and renegotiate with servers which do not support RI.
159 Until RI is more widely deployed this option is enabled by default.
162 *) Add "missing" ssl ctrls to clear options and mode.
165 *) If client attempts to renegotiate and doesn't support RI respond with
166 a no_renegotiation alert as required by RFC5746. Some renegotiating
167 TLS clients will continue a connection gracefully when they receive
168 the alert. Unfortunately OpenSSL mishandled this alert and would hang
169 waiting for a server hello which it will never receive. Now we treat a
170 received no_renegotiation alert as a fatal error. This is because
171 applications requesting a renegotiation might well expect it to succeed
172 and would have no code in place to handle the server denying it so the
173 only safe thing to do is to terminate the connection.
176 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
177 peer supports secure renegotiation and 0 otherwise. Print out peer
178 renegotiation support in s_client/s_server.
181 *) Replace the highly broken and deprecated SPKAC certification method with
182 the updated NID creation version. This should correctly handle UTF8.
185 *) Implement RFC5746. Re-enable renegotiation but require the extension
186 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
187 turns out to be a bad idea. It has been replaced by
188 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
189 SSL_CTX_set_options(). This is really not recommended unless you
190 know what you are doing.
191 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
193 *) Fixes to stateless session resumption handling. Use initial_ctx when
194 issuing and attempting to decrypt tickets in case it has changed during
195 servername handling. Use a non-zero length session ID when attempting
196 stateless session resumption: this makes it possible to determine if
197 a resumption has occurred immediately after receiving server hello
198 (several places in OpenSSL subtly assume this) instead of later in
202 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
203 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
204 fixes for a few places where the return code is not checked
206 [Julia Lawall <julia@diku.dk>]
208 *) Add --strict-warnings option to Configure script to include devteam
209 warnings in other configurations.
212 *) Add support for --libdir option and LIBDIR variable in makefiles. This
213 makes it possible to install openssl libraries in locations which
214 have names other than "lib", for example "/usr/lib64" which some
216 [Steve Henson, based on patch from Jeremy Utley]
218 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
219 X690 8.9.12 and can produce some misleading textual output of OIDs.
220 [Steve Henson, reported by Dan Kaminsky]
222 *) Delete MD2 from algorithm tables. This follows the recommendation in
223 several standards that it is not used in new applications due to
224 several cryptographic weaknesses. For binary compatibility reasons
225 the MD2 API is still compiled in by default.
228 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
232 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
233 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
235 [Guenter <lists@gknw.net>]
237 *) Fix the server certificate chain building code to use X509_verify_cert(),
238 it used to have an ad-hoc builder which was unable to cope with anything
239 other than a simple chain.
240 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
242 *) Don't check self signed certificate signatures in X509_verify_cert()
243 by default (a flag can override this): it just wastes time without
244 adding any security. As a useful side effect self signed root CAs
245 with non-FIPS digests are now usable in FIPS mode.
248 *) In dtls1_process_out_of_seq_message() the check if the current message
249 is already buffered was missing. For every new message was memory
250 allocated, allowing an attacker to perform an denial of service attack
251 with sending out of seq handshake messages until there is no memory
252 left. Additionally every future messege was buffered, even if the
253 sequence number made no sense and would be part of another handshake.
254 So only messages with sequence numbers less than 10 in advance will be
255 buffered. (CVE-2009-1378)
256 [Robin Seggelmann, discovered by Daniel Mentz]
258 *) Records are buffered if they arrive with a future epoch to be
259 processed after finishing the corresponding handshake. There is
260 currently no limitation to this buffer allowing an attacker to perform
261 a DOS attack with sending records with future epochs until there is no
262 memory left. This patch adds the pqueue_size() function to detemine
263 the size of a buffer and limits the record buffer to 100 entries.
265 [Robin Seggelmann, discovered by Daniel Mentz]
267 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
268 parent structure is freed. (CVE-2009-1379)
271 *) Handle non-blocking I/O properly in SSL_shutdown() call.
272 [Darryl Miles <darryl-mailinglists@netbauds.net>]
275 [Ilya O. <vrghost@gmail.com>]
277 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
279 *) Disable renegotiation completely - this fixes a severe security
280 problem (CVE-2009-3555) at the cost of breaking all
281 renegotiation. Renegotiation can be re-enabled by setting
282 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
283 run-time. This is really not recommended unless you know what
287 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
289 *) Don't set val to NULL when freeing up structures, it is freed up by
290 underlying code. If sizeof(void *) > sizeof(long) this can result in
291 zeroing past the valid field. (CVE-2009-0789)
292 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
294 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
295 checked correctly. This would allow some invalid signed attributes to
296 appear to verify correctly. (CVE-2009-0591)
297 [Ivan Nestlerode <inestlerode@us.ibm.com>]
299 *) Reject UniversalString and BMPString types with invalid lengths. This
300 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
301 a legal length. (CVE-2009-0590)
304 *) Set S/MIME signing as the default purpose rather than setting it
305 unconditionally. This allows applications to override it at the store
309 *) Permit restricted recursion of ASN1 strings. This is needed in practice
310 to handle some structures.
313 *) Improve efficiency of mem_gets: don't search whole buffer each time
315 [Jeremy Shapiro <jnshapir@us.ibm.com>]
317 *) New -hex option for openssl rand.
320 *) Print out UTF8String and NumericString when parsing ASN1.
323 *) Support NumericString type for name components.
326 *) Allow CC in the environment to override the automatically chosen
327 compiler. Note that nothing is done to ensure flags work with the
331 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
333 *) Properly check EVP_VerifyFinal() and similar return values
335 [Ben Laurie, Bodo Moeller, Google Security Team]
337 *) Enable TLS extensions by default.
340 *) Allow the CHIL engine to be loaded, whether the application is
341 multithreaded or not. (This does not release the developer from the
342 obligation to set up the dynamic locking callbacks.)
343 [Sander Temme <sander@temme.net>]
345 *) Use correct exit code if there is an error in dgst command.
346 [Steve Henson; problem pointed out by Roland Dirlewanger]
348 *) Tweak Configure so that you need to say "experimental-jpake" to enable
349 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
352 *) Add experimental JPAKE support, including demo authentication in
353 s_client and s_server.
356 *) Set the comparison function in v3_addr_canonize().
357 [Rob Austein <sra@hactrn.net>]
359 *) Add support for XMPP STARTTLS in s_client.
360 [Philip Paeps <philip@freebsd.org>]
362 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
363 to ensure that even with this option, only ciphersuites in the
364 server's preference list will be accepted. (Note that the option
365 applies only when resuming a session, so the earlier behavior was
366 just about the algorithm choice for symmetric cryptography.)
369 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
371 *) Fix NULL pointer dereference if a DTLS server received
372 ChangeCipherSpec as first record (CVE-2009-1386).
375 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
376 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
379 *) The fix in 0.9.8c that supposedly got rid of unsafe
380 double-checked locking was incomplete for RSA blinding,
381 addressing just one layer of what turns out to have been
382 doubly unsafe triple-checked locking.
384 So now fix this for real by retiring the MONT_HELPER macro
385 in crypto/rsa/rsa_eay.c.
387 [Bodo Moeller; problem pointed out by Marius Schilder]
389 *) Various precautionary measures:
391 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
393 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
394 (NB: This would require knowledge of the secret session ticket key
395 to exploit, in which case you'd be SOL either way.)
397 - Change bn_nist.c so that it will properly handle input BIGNUMs
398 outside the expected range.
400 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
403 [Neel Mehta, Bodo Moeller]
405 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
406 the load fails. Useful for distros.
407 [Ben Laurie and the FreeBSD team]
409 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
412 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
415 *) Expand ENGINE to support engine supplied SSL client certificate functions.
417 This work was sponsored by Logica.
420 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
421 keystores. Support for SSL/TLS client authentication too.
422 Not compiled unless enable-capieng specified to Configure.
424 This work was sponsored by Logica.
427 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
428 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
429 attribute creation routines such as certifcate requests and PKCS#12
433 Changes between 0.9.8g and 0.9.8h [28 May 2008]
435 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
436 handshake which could lead to a cilent crash as found using the
437 Codenomicon TLS test suite (CVE-2008-1672)
438 [Steve Henson, Mark Cox]
440 *) Fix double free in TLS server name extensions which could lead to
441 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
444 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
446 Clear the error queue to ensure that error entries left from
447 older function calls do not interfere with the correct operation.
448 [Lutz Jaenicke, Erik de Castro Lopo]
450 *) Remove root CA certificates of commercial CAs:
452 The OpenSSL project does not recommend any specific CA and does not
453 have any policy with respect to including or excluding any CA.
454 Therefore it does not make any sense to ship an arbitrary selection
455 of root CA certificates with the OpenSSL software.
458 *) RSA OAEP patches to fix two separate invalid memory reads.
459 The first one involves inputs when 'lzero' is greater than
460 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
461 before the beginning of from). The second one involves inputs where
462 the 'db' section contains nothing but zeroes (there is a one-byte
463 invalid read after the end of 'db').
464 [Ivan Nestlerode <inestlerode@us.ibm.com>]
466 *) Partial backport from 0.9.9-dev:
468 Introduce bn_mul_mont (dedicated Montgomery multiplication
469 procedure) as a candidate for BIGNUM assembler implementation.
470 While 0.9.9-dev uses assembler for various architectures, only
471 x86_64 is available by default here in the 0.9.8 branch, and
472 32-bit x86 is available through a compile-time setting.
474 To try the 32-bit x86 assembler implementation, use Configure
475 option "enable-montasm" (which exists only for this backport).
477 As "enable-montasm" for 32-bit x86 disclaims code stability
478 anyway, in this constellation we activate additional code
479 backported from 0.9.9-dev for further performance improvements,
480 namely BN_from_montgomery_word. (To enable this otherwise,
481 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
483 [Andy Polyakov (backport partially by Bodo Moeller)]
485 *) Add TLS session ticket callback. This allows an application to set
486 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
487 values. This is useful for key rollover for example where several key
488 sets may exist with different names.
491 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
492 This was broken until now in 0.9.8 releases, such that the only way
493 a registered ENGINE could be used (assuming it initialises
494 successfully on the host) was to explicitly set it as the default
495 for the relevant algorithms. This is in contradiction with 0.9.7
496 behaviour and the documentation. With this fix, when an ENGINE is
497 registered into a given algorithm's table of implementations, the
498 'uptodate' flag is reset so that auto-discovery will be used next
499 time a new context for that algorithm attempts to select an
501 [Ian Lister (tweaked by Geoff Thorpe)]
503 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
504 implemention in the following ways:
506 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
509 Lack of BER streaming support means one pass streaming processing is
510 only supported if data is detached: setting the streaming flag is
511 ignored for embedded content.
513 CMS support is disabled by default and must be explicitly enabled
514 with the enable-cms configuration option.
517 *) Update the GMP engine glue to do direct copies between BIGNUM and
518 mpz_t when openssl and GMP use the same limb size. Otherwise the
519 existing "conversion via a text string export" trick is still used.
520 [Paul Sheer <paulsheer@gmail.com>]
522 *) Zlib compression BIO. This is a filter BIO which compressed and
523 uncompresses any data passed through it.
526 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
527 RFC3394 compatible AES key wrapping.
530 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
531 sets string data without copying. X509_ALGOR_set0() and
532 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
533 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
534 from an X509_ATTRIBUTE structure optionally checking it occurs only
535 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
539 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
540 to get the expected BN_FLG_CONSTTIME behavior.
541 [Bodo Moeller (Google)]
545 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
546 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
547 - added some more tests to do_tests.pl
548 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
549 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
550 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
551 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
552 - various changes to netware.pl to enable gcc-cross builds on Win32
554 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
555 - various changes to fix missing prototype warnings
556 - fixed x86nasm.pl to create correct asm files for NASM COFF output
557 - added AES, WHIRLPOOL and CPUID assembler code to build files
558 - added missing AES assembler make rules to mk1mf.pl
559 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
560 [Guenter Knauf <eflash@gmx.net>]
562 *) Implement certificate status request TLS extension defined in RFC3546.
563 A client can set the appropriate parameters and receive the encoded
564 OCSP response via a callback. A server can query the supplied parameters
565 and set the encoded OCSP response in the callback. Add simplified examples
566 to s_client and s_server.
569 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
572 + Binary incompatibility of ssl_ctx_st structure
573 + DTLS interoperation with non-compliant servers
574 + Don't call get_session_cb() without proposed session
575 + Fix ia64 assembler code
576 [Andy Polyakov, Steve Henson]
578 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
580 *) DTLS Handshake overhaul. There were longstanding issues with
581 OpenSSL DTLS implementation, which were making it impossible for
582 RFC 4347 compliant client to communicate with OpenSSL server.
583 Unfortunately just fixing these incompatibilities would "cut off"
584 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
585 server keeps tolerating non RFC compliant syntax. The opposite is
586 not true, 0.9.8f client can not communicate with earlier server.
587 This update even addresses CVE-2007-4995.
590 *) Changes to avoid need for function casts in OpenSSL: some compilers
591 (gcc 4.2 and later) reject their use.
592 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
595 *) Add RFC4507 support to OpenSSL. This includes the corrections in
596 RFC4507bis. The encrypted ticket format is an encrypted encoded
597 SSL_SESSION structure, that way new session features are automatically
600 If a client application caches session in an SSL_SESSION structure
601 support is transparent because tickets are now stored in the encoded
604 The SSL_CTX structure automatically generates keys for ticket
605 protection in servers so again support should be possible
606 with no application modification.
608 If a client or server wishes to disable RFC4507 support then the option
609 SSL_OP_NO_TICKET can be set.
611 Add a TLS extension debugging callback to allow the contents of any client
612 or server extensions to be examined.
614 This work was sponsored by Google.
617 *) Add initial support for TLS extensions, specifically for the server_name
618 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
619 have new members for a host name. The SSL data structure has an
620 additional member SSL_CTX *initial_ctx so that new sessions can be
621 stored in that context to allow for session resumption, even after the
622 SSL has been switched to a new SSL_CTX in reaction to a client's
623 server_name extension.
625 New functions (subject to change):
628 SSL_get_servername_type()
631 New CTRL codes and macros (subject to change):
633 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
634 - SSL_CTX_set_tlsext_servername_callback()
635 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
636 - SSL_CTX_set_tlsext_servername_arg()
637 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
639 openssl s_client has a new '-servername ...' option.
641 openssl s_server has new options '-servername_host ...', '-cert2 ...',
642 '-key2 ...', '-servername_fatal' (subject to change). This allows
643 testing the HostName extension for a specific single host name ('-cert'
644 and '-key' remain fallbacks for handshakes without HostName
645 negotiation). If the unrecogninzed_name alert has to be sent, this by
646 default is a warning; it becomes fatal with the '-servername_fatal'
649 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
651 *) Add AES and SSE2 assembly language support to VC++ build.
654 *) Mitigate attack on final subtraction in Montgomery reduction.
657 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
658 (which previously caused an internal error).
661 *) Squeeze another 10% out of IGE mode when in != out.
664 *) AES IGE mode speedup.
665 [Dean Gaudet (Google)]
667 *) Add the Korean symmetric 128-bit cipher SEED (see
668 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
669 add SEED ciphersuites from RFC 4162:
671 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
672 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
673 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
674 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
676 To minimize changes between patchlevels in the OpenSSL 0.9.8
677 series, SEED remains excluded from compilation unless OpenSSL
678 is configured with 'enable-seed'.
681 *) Mitigate branch prediction attacks, which can be practical if a
682 single processor is shared, allowing a spy process to extract
683 information. For detailed background information, see
684 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
685 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
686 and Necessary Software Countermeasures"). The core of the change
687 are new versions BN_div_no_branch() and
688 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
689 respectively, which are slower, but avoid the security-relevant
690 conditional branches. These are automatically called by BN_div()
691 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
692 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
693 remove a conditional branch.
695 BN_FLG_CONSTTIME is the new name for the previous
696 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
697 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
698 in the exponent causes BN_mod_exp_mont() to use the alternative
699 implementation in BN_mod_exp_mont_consttime().) The old name
700 remains as a deprecated alias.
702 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
703 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
704 constant-time implementations for more than just exponentiation.
705 Here too the old name is kept as a deprecated alias.
707 BN_BLINDING_new() will now use BN_dup() for the modulus so that
708 the BN_BLINDING structure gets an independent copy of the
709 modulus. This means that the previous "BIGNUM *m" argument to
710 BN_BLINDING_new() and to BN_BLINDING_create_param() now
711 essentially becomes "const BIGNUM *m", although we can't actually
712 change this in the header file before 0.9.9. It allows
713 RSA_setup_blinding() to use BN_with_flags() on the modulus to
714 enable BN_FLG_CONSTTIME.
716 [Matthew D Wood (Intel Corp)]
718 *) In the SSL/TLS server implementation, be strict about session ID
719 context matching (which matters if an application uses a single
720 external cache for different purposes). Previously,
721 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
722 set. This did ensure strict client verification, but meant that,
723 with applications using a single external cache for quite
724 different requirements, clients could circumvent ciphersuite
725 restrictions for a given session ID context by starting a session
726 in a different context.
729 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
730 a ciphersuite string such as "DEFAULT:RSA" cannot enable
731 authentication-only ciphersuites.
734 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
735 not complete and could lead to a possible single byte overflow
736 (CVE-2007-5135) [Ben Laurie]
738 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
740 *) Since AES128 and AES256 (and similarly Camellia128 and
741 Camellia256) share a single mask bit in the logic of
742 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
743 kludge to work properly if AES128 is available and AES256 isn't
744 (or if Camellia128 is available and Camellia256 isn't).
747 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
748 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
749 When a point or a seed is encoded in a BIT STRING, we need to
750 prevent the removal of trailing zero bits to get the proper DER
751 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
752 of a NamedBitList, for which trailing 0 bits need to be removed.)
755 *) Have SSL/TLS server implementation tolerate "mismatched" record
756 protocol version while receiving ClientHello even if the
757 ClientHello is fragmented. (The server can't insist on the
758 particular protocol version it has chosen before the ServerHello
759 message has informed the client about his choice.)
762 *) Add RFC 3779 support.
763 [Rob Austein for ARIN, Ben Laurie]
765 *) Load error codes if they are not already present instead of using a
766 static variable. This allows them to be cleanly unloaded and reloaded.
767 Improve header file function name parsing.
770 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
771 or CAPABILITY handshake as required by RFCs.
774 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
776 *) Introduce limits to prevent malicious keys being able to
777 cause a denial of service. (CVE-2006-2940)
778 [Steve Henson, Bodo Moeller]
780 *) Fix ASN.1 parsing of certain invalid structures that can result
781 in a denial of service. (CVE-2006-2937) [Steve Henson]
783 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
784 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
786 *) Fix SSL client code which could crash if connecting to a
787 malicious SSLv2 server. (CVE-2006-4343)
788 [Tavis Ormandy and Will Drewry, Google Security Team]
790 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
791 match only those. Before that, "AES256-SHA" would be interpreted
792 as a pattern and match "AES128-SHA" too (since AES128-SHA got
793 the same strength classification in 0.9.7h) as we currently only
794 have a single AES bit in the ciphersuite description bitmap.
795 That change, however, also applied to ciphersuite strings such as
796 "RC4-MD5" that intentionally matched multiple ciphersuites --
797 namely, SSL 2.0 ciphersuites in addition to the more common ones
798 from SSL 3.0/TLS 1.0.
800 So we change the selection algorithm again: Naming an explicit
801 ciphersuite selects this one ciphersuite, and any other similar
802 ciphersuite (same bitmap) from *other* protocol versions.
803 Thus, "RC4-MD5" again will properly select both the SSL 2.0
804 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
806 Since SSL 2.0 does not have any ciphersuites for which the
807 128/256 bit distinction would be relevant, this works for now.
808 The proper fix will be to use different bits for AES128 and
809 AES256, which would have avoided the problems from the beginning;
810 however, bits are scarce, so we can only do this in a new release
811 (not just a patchlevel) when we can change the SSL_CIPHER
812 definition to split the single 'unsigned long mask' bitmap into
813 multiple values to extend the available space.
817 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
819 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
820 (CVE-2006-4339) [Ben Laurie and Google Security Team]
822 *) Add AES IGE and biIGE modes.
825 *) Change the Unix randomness entropy gathering to use poll() when
826 possible instead of select(), since the latter has some
827 undesirable limitations.
828 [Darryl Miles via Richard Levitte and Bodo Moeller]
830 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
831 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
832 cannot be implicitly activated as part of, e.g., the "AES" alias.
833 However, please upgrade to OpenSSL 0.9.9[-dev] for
834 non-experimental use of the ECC ciphersuites to get TLS extension
835 support, which is required for curve and point format negotiation
836 to avoid potential handshake problems.
839 *) Disable rogue ciphersuites:
841 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
842 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
843 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
845 The latter two were purportedly from
846 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
849 Also deactivate the remaining ciphersuites from
850 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
851 unofficial, and the ID has long expired.
854 *) Fix RSA blinding Heisenbug (problems sometimes occured on
855 dual-core machines) and other potential thread-safety issues.
858 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
859 versions), which is now available for royalty-free use
860 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
861 Also, add Camellia TLS ciphersuites from RFC 4132.
863 To minimize changes between patchlevels in the OpenSSL 0.9.8
864 series, Camellia remains excluded from compilation unless OpenSSL
865 is configured with 'enable-camellia'.
868 *) Disable the padding bug check when compression is in use. The padding
869 bug check assumes the first packet is of even length, this is not
870 necessarily true if compresssion is enabled and can result in false
871 positives causing handshake failure. The actual bug test is ancient
872 code so it is hoped that implementations will either have fixed it by
873 now or any which still have the bug do not support compression.
876 Changes between 0.9.8a and 0.9.8b [04 May 2006]
878 *) When applying a cipher rule check to see if string match is an explicit
879 cipher suite and only match that one cipher suite if it is.
882 *) Link in manifests for VC++ if needed.
883 [Austin Ziegler <halostatue@gmail.com>]
885 *) Update support for ECC-based TLS ciphersuites according to
886 draft-ietf-tls-ecc-12.txt with proposed changes (but without
887 TLS extensions, which are supported starting with the 0.9.9
888 branch, not in the OpenSSL 0.9.8 branch).
891 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
892 opaque EVP_CIPHER_CTX handling.
895 *) Fixes and enhancements to zlib compression code. We now only use
896 "zlib1.dll" and use the default __cdecl calling convention on Win32
897 to conform with the standards mentioned here:
898 http://www.zlib.net/DLL_FAQ.txt
899 Static zlib linking now works on Windows and the new --with-zlib-include
900 --with-zlib-lib options to Configure can be used to supply the location
901 of the headers and library. Gracefully handle case where zlib library
905 *) Several fixes and enhancements to the OID generation code. The old code
906 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
907 handle numbers larger than ULONG_MAX, truncated printing and had a
908 non standard OBJ_obj2txt() behaviour.
911 *) Add support for building of engines under engine/ as shared libraries
912 under VC++ build system.
915 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
916 Hopefully, we will not see any false combination of paths any more.
919 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
921 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
922 (part of SSL_OP_ALL). This option used to disable the
923 countermeasure against man-in-the-middle protocol-version
924 rollback in the SSL 2.0 server implementation, which is a bad
925 idea. (CVE-2005-2969)
927 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
928 for Information Security, National Institute of Advanced Industrial
929 Science and Technology [AIST], Japan)]
931 *) Add two function to clear and return the verify parameter flags.
934 *) Keep cipherlists sorted in the source instead of sorting them at
935 runtime, thus removing the need for a lock.
938 *) Avoid some small subgroup attacks in Diffie-Hellman.
939 [Nick Mathewson and Ben Laurie]
941 *) Add functions for well-known primes.
944 *) Extended Windows CE support.
945 [Satoshi Nakamura and Andy Polyakov]
947 *) Initialize SSL_METHOD structures at compile time instead of during
948 runtime, thus removing the need for a lock.
951 *) Make PKCS7_decrypt() work even if no certificate is supplied by
952 attempting to decrypt each encrypted key in turn. Add support to
956 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
958 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
961 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
964 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
965 key into the same file any more.
968 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
971 *) Add -utf8 command line and config file option to 'ca'.
972 [Stefan <stf@udoma.org]
974 *) Removed the macro des_crypt(), as it seems to conflict with some
975 libraries. Use DES_crypt().
978 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
979 involves renaming the source and generated shared-libs for
980 both. The engines will accept the corrected or legacy ids
981 ('ncipher' and '4758_cca' respectively) when binding. NB,
982 this only applies when building 'shared'.
983 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
985 *) Add attribute functions to EVP_PKEY structure. Modify
986 PKCS12_create() to recognize a CSP name attribute and
987 use it. Make -CSP option work again in pkcs12 utility.
990 *) Add new functionality to the bn blinding code:
991 - automatic re-creation of the BN_BLINDING parameters after
992 a fixed number of uses (currently 32)
993 - add new function for parameter creation
994 - introduce flags to control the update behaviour of the
995 BN_BLINDING parameters
996 - hide BN_BLINDING structure
997 Add a second BN_BLINDING slot to the RSA structure to improve
998 performance when a single RSA object is shared among several
1002 *) Add support for DTLS.
1003 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1005 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1006 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1009 *) Remove buggy and incompletet DH cert support from
1010 ssl/ssl_rsa.c and ssl/s3_both.c
1013 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1014 the apps/openssl applications.
1017 *) Compile clean with "-Wall -Wmissing-prototypes
1018 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1019 DEBUG_SAFESTACK must also be set.
1022 *) Change ./Configure so that certain algorithms can be disabled by default.
1023 The new counterpiece to "no-xxx" is "enable-xxx".
1025 The patented RC5 and MDC2 algorithms will now be disabled unless
1026 "enable-rc5" and "enable-mdc2", respectively, are specified.
1028 (IDEA remains enabled despite being patented. This is because IDEA
1029 is frequently required for interoperability, and there is no license
1030 fee for non-commercial use. As before, "no-idea" can be used to
1031 avoid this algorithm.)
1035 *) Add processing of proxy certificates (see RFC 3820). This work was
1036 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1037 EGEE (Enabling Grids for E-science in Europe).
1040 *) RC4 performance overhaul on modern architectures/implementations, such
1041 as Intel P4, IA-64 and AMD64.
1044 *) New utility extract-section.pl. This can be used specify an alternative
1045 section number in a pod file instead of having to treat each file as
1046 a separate case in Makefile. This can be done by adding two lines to the
1049 =for comment openssl_section:XXX
1051 The blank line is mandatory.
1055 *) New arguments -certform, -keyform and -pass for s_client and s_server
1056 to allow alternative format key and certificate files and passphrase
1060 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1061 update associated structures and add various utility functions.
1063 Add new policy related verify parameters, include policy checking in
1064 standard verify code. Enhance 'smime' application with extra parameters
1065 to support policy checking and print out.
1068 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1069 Nehemiah processors. These extensions support AES encryption in hardware
1070 as well as RNG (though RNG support is currently disabled).
1071 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1073 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1076 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1077 [Andy Polyakov and a number of other people]
1079 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1080 implementation contributed by IBM.
1081 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1083 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1084 exponent rather than 'unsigned long'. There is a corresponding change to
1085 the new 'rsa_keygen' element of the RSA_METHOD structure.
1086 [Jelte Jansen, Geoff Thorpe]
1088 *) Functionality for creating the initial serial number file is now
1089 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1091 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1092 number file to 1, which is bound to cause problems. To avoid
1093 the problems while respecting compatibility between different 0.9.7
1094 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1095 CA.pl for serial number initialization. With the new release 0.9.8,
1096 we can fix the problem directly in the 'ca' utility.)
1099 *) Reduced header interdepencies by declaring more opaque objects in
1100 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1101 give fewer recursive includes, which could break lazy source code - so
1102 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1103 developers should define this symbol when building and using openssl to
1104 ensure they track the recommended behaviour, interfaces, [etc], but
1105 backwards-compatible behaviour prevails when this isn't defined.
1108 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1111 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1112 This will generate a random key of the appropriate length based on the
1113 cipher context. The EVP_CIPHER can provide its own random key generation
1114 routine to support keys of a specific form. This is used in the des and
1115 3des routines to generate a key of the correct parity. Update S/MIME
1116 code to use new functions and hence generate correct parity DES keys.
1117 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1118 valid (weak or incorrect parity).
1121 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1122 as looking them up. This is useful when the verified structure may contain
1123 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1124 present unless the new PKCS7_NO_CRL flag is asserted.
1127 *) Extend ASN1 oid configuration module. It now additionally accepts the
1130 shortName = some long name, 1.2.3.4
1133 *) Reimplemented the BN_CTX implementation. There is now no more static
1134 limitation on the number of variables it can handle nor the depth of the
1135 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1136 information can now expand as required, and rather than having a single
1137 static array of bignums, BN_CTX now uses a linked-list of such arrays
1138 allowing it to expand on demand whilst maintaining the usefulness of
1139 BN_CTX's "bundling".
1142 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1143 to allow all RSA operations to function using a single BN_CTX.
1146 *) Preliminary support for certificate policy evaluation and checking. This
1147 is initially intended to pass the tests outlined in "Conformance Testing
1148 of Relying Party Client Certificate Path Processing Logic" v1.07.
1151 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1152 remained unused and not that useful. A variety of other little bignum
1153 tweaks and fixes have also been made continuing on from the audit (see
1157 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1158 associated ASN1, EVP and SSL functions and old ASN1 macros.
1161 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1162 and this should never fail. So the return value from the use of
1163 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1164 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1167 *) BN_CTX_get() should return zero-valued bignums, providing the same
1168 initialised value as BN_new().
1169 [Geoff Thorpe, suggested by Ulf Möller]
1171 *) Support for inhibitAnyPolicy certificate extension.
1174 *) An audit of the BIGNUM code is underway, for which debugging code is
1175 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1176 is considered valid when processing BIGNUMs, and causes execution to
1177 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1178 further steps are taken to deliberately pollute unused data in BIGNUM
1179 structures to try and expose faulty code further on. For now, openssl will
1180 (in its default mode of operation) continue to tolerate the inconsistent
1181 forms that it has tolerated in the past, but authors and packagers should
1182 consider trying openssl and their own applications when compiled with
1183 these debugging symbols defined. It will help highlight potential bugs in
1184 their own code, and will improve the test coverage for OpenSSL itself. At
1185 some point, these tighter rules will become openssl's default to improve
1186 maintainability, though the assert()s and other overheads will remain only
1187 in debugging configurations. See bn.h for more details.
1188 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1190 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1191 that can only be obtained through BN_CTX_new() (which implicitly
1192 initialises it). The presence of this function only made it possible
1193 to overwrite an existing structure (and cause memory leaks).
1196 *) Because of the callback-based approach for implementing LHASH as a
1197 template type, lh_insert() adds opaque objects to hash-tables and
1198 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1199 to clean up those corresponding objects before destroying the hash table
1200 (and losing the object pointers). So some over-zealous constifications in
1201 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1202 objects as "const" and the lh_doall[_arg] callback wrappers are not
1203 prototyped to have "const" restrictions on the object pointers they are
1204 given (and so aren't required to cast them away any more).
1207 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1208 (speed) prefers to use its own implementation. The two implementations
1209 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1210 its object type properly exposed (MS_TM) instead of casting to/from "char
1211 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1212 aren't necessarily the greatest nomenclatures - but this is what was used
1213 internally to the implementation so I've used that for now.
1216 *) Ensure that deprecated functions do not get compiled when
1217 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1218 the self-tests were still using deprecated key-generation functions so
1219 these have been updated also.
1222 *) Reorganise PKCS#7 code to separate the digest location functionality
1223 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1224 New function PKCS7_set_digest() to set the digest type for PKCS#7
1225 digestedData type. Add additional code to correctly generate the
1226 digestedData type and add support for this type in PKCS7 initialization
1230 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1231 structure of type "other".
1234 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1235 sure the loop does correctly stop and breaking ("division by zero")
1236 modulus operations are not performed. The (pre-generated) prime
1237 table crypto/bn/bn_prime.h was already correct, but it could not be
1238 re-generated on some platforms because of the "division by zero"
1239 situation in the script.
1240 [Ralf S. Engelschall]
1242 *) Update support for ECC-based TLS ciphersuites according to
1243 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1244 SHA-1 now is only used for "small" curves (where the
1245 representation of a field element takes up to 24 bytes); for
1246 larger curves, the field element resulting from ECDH is directly
1247 used as premaster secret.
1248 [Douglas Stebila (Sun Microsystems Laboratories)]
1250 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1251 curve secp160r1 to the tests.
1252 [Douglas Stebila (Sun Microsystems Laboratories)]
1254 *) Add the possibility to load symbols globally with DSO.
1255 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1257 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1258 control of the error stack.
1261 *) Add support for STORE in ENGINE.
1264 *) Add the STORE type. The intention is to provide a common interface
1265 to certificate and key stores, be they simple file-based stores, or
1266 HSM-type store, or LDAP stores, or...
1267 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1270 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1271 pass a list of arguments to any function as well as provide a way
1272 for a function to pass data back to the caller.
1275 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1276 works like BUF_strdup() but can be used to duplicate a portion of
1277 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1281 *) Add the function sk_find_ex() which works like sk_find(), but will
1282 return an index to an element even if an exact match couldn't be
1283 found. The index is guaranteed to point at the element where the
1284 searched-for key would be inserted to preserve sorting order.
1287 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1288 takes an extra flags argument for optional functionality. Currently,
1289 the following flags are defined:
1291 OBJ_BSEARCH_VALUE_ON_NOMATCH
1292 This one gets OBJ_bsearch_ex() to return a pointer to the first
1293 element where the comparing function returns a negative or zero
1296 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1297 This one gets OBJ_bsearch_ex() to return a pointer to the first
1298 element where the comparing function returns zero. This is useful
1299 if there are more than one element where the comparing function
1303 *) Make it possible to create self-signed certificates with 'openssl ca'
1304 in such a way that the self-signed certificate becomes part of the
1305 CA database and uses the same mechanisms for serial number generation
1306 as all other certificate signing. The new flag '-selfsign' enables
1307 this functionality. Adapt CA.sh and CA.pl.in.
1310 *) Add functionality to check the public key of a certificate request
1311 against a given private. This is useful to check that a certificate
1312 request can be signed by that key (self-signing).
1315 *) Make it possible to have multiple active certificates with the same
1316 subject in the CA index file. This is done only if the keyword
1317 'unique_subject' is set to 'no' in the main CA section (default
1318 if 'CA_default') of the configuration file. The value is saved
1319 with the database itself in a separate index attribute file,
1320 named like the index file with '.attr' appended to the name.
1323 *) Generate muti valued AVAs using '+' notation in config files for
1327 *) Support for nameConstraints certificate extension.
1330 *) Support for policyConstraints certificate extension.
1333 *) Support for policyMappings certificate extension.
1336 *) Make sure the default DSA_METHOD implementation only uses its
1337 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1338 and change its own handlers to be NULL so as to remove unnecessary
1339 indirection. This lets alternative implementations fallback to the
1340 default implementation more easily.
1343 *) Support for directoryName in GeneralName related extensions
1347 *) Make it possible to link applications using Makefile.shared.
1348 Make that possible even when linking against static libraries!
1351 *) Support for single pass processing for S/MIME signing. This now
1352 means that S/MIME signing can be done from a pipe, in addition
1353 cleartext signing (multipart/signed type) is effectively streaming
1354 and the signed data does not need to be all held in memory.
1356 This is done with a new flag PKCS7_STREAM. When this flag is set
1357 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1358 is done after the data is output (and digests calculated) in
1359 SMIME_write_PKCS7().
1362 *) Add full support for -rpath/-R, both in shared libraries and
1363 applications, at least on the platforms where it's known how
1367 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1368 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1369 will now compute a table of multiples of the generator that
1370 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1371 faster (notably in the case of a single point multiplication,
1372 scalar * generator).
1373 [Nils Larsch, Bodo Moeller]
1375 *) IPv6 support for certificate extensions. The various extensions
1376 which use the IP:a.b.c.d can now take IPv6 addresses using the
1377 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1381 *) Added an ENGINE that implements RSA by performing private key
1382 exponentiations with the GMP library. The conversions to and from
1383 GMP's mpz_t format aren't optimised nor are any montgomery forms
1384 cached, and on x86 it appears OpenSSL's own performance has caught up.
1385 However there are likely to be other architectures where GMP could
1386 provide a boost. This ENGINE is not built in by default, but it can be
1387 specified at Configure time and should be accompanied by the necessary
1388 linker additions, eg;
1389 ./config -DOPENSSL_USE_GMP -lgmp
1392 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1393 testing availability of engines with "-t" - the old behaviour is
1394 produced by increasing the feature's verbosity with "-tt".
1397 *) ECDSA routines: under certain error conditions uninitialized BN objects
1398 could be freed. Solution: make sure initialization is performed early
1399 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1403 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1404 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1405 software implementations. For DSA and DH, parameter generation can
1406 also be overriden by providing the appropriate method callbacks.
1409 *) Change the "progress" mechanism used in key-generation and
1410 primality testing to functions that take a new BN_GENCB pointer in
1411 place of callback/argument pairs. The new API functions have "_ex"
1412 postfixes and the older functions are reimplemented as wrappers for
1413 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1414 declarations of the old functions to help (graceful) attempts to
1415 migrate to the new functions. Also, the new key-generation API
1416 functions operate on a caller-supplied key-structure and return
1417 success/failure rather than returning a key or NULL - this is to
1418 help make "keygen" another member function of RSA_METHOD etc.
1420 Example for using the new callback interface:
1422 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1426 BN_GENCB_set(&my_cb, my_callback, my_arg);
1428 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1429 /* For the meaning of a, b in calls to my_callback(), see the
1430 * documentation of the function that calls the callback.
1431 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1432 * my_callback should return 1 if it wants BN_is_prime_ex()
1433 * to continue, or 0 to stop.
1438 *) Change the ZLIB compression method to be stateful, and make it
1439 available to TLS with the number defined in
1440 draft-ietf-tls-compression-04.txt.
1443 *) Add the ASN.1 structures and functions for CertificatePair, which
1444 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1446 CertificatePair ::= SEQUENCE {
1447 forward [0] Certificate OPTIONAL,
1448 reverse [1] Certificate OPTIONAL,
1449 -- at least one of the pair shall be present -- }
1451 Also implement the PEM functions to read and write certificate
1452 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1454 This needed to be defined, mostly for the sake of the LDAP
1455 attribute crossCertificatePair, but may prove useful elsewhere as
1459 *) Make it possible to inhibit symlinking of shared libraries in
1460 Makefile.shared, for Cygwin's sake.
1463 *) Extend the BIGNUM API by creating a function
1464 void BN_set_negative(BIGNUM *a, int neg);
1465 and a macro that behave like
1466 int BN_is_negative(const BIGNUM *a);
1468 to avoid the need to access 'a->neg' directly in applications.
1471 *) Implement fast modular reduction for pseudo-Mersenne primes
1472 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1473 EC_GROUP_new_curve_GFp() will now automatically use this
1475 [Nils Larsch <nla@trustcenter.de>]
1477 *) Add new lock type (CRYPTO_LOCK_BN).
1480 *) Change the ENGINE framework to automatically load engines
1481 dynamically from specific directories unless they could be
1482 found to already be built in or loaded. Move all the
1483 current engines except for the cryptodev one to a new
1485 The engines in engines/ are built as shared libraries if
1486 the "shared" options was given to ./Configure or ./config.
1487 Otherwise, they are inserted in libcrypto.a.
1488 /usr/local/ssl/engines is the default directory for dynamic
1489 engines, but that can be overriden at configure time through
1490 the usual use of --prefix and/or --openssldir, and at run
1491 time with the environment variable OPENSSL_ENGINES.
1492 [Geoff Thorpe and Richard Levitte]
1494 *) Add Makefile.shared, a helper makefile to build shared
1495 libraries. Addapt Makefile.org.
1498 *) Add version info to Win32 DLLs.
1499 [Peter 'Luna' Runestig" <peter@runestig.com>]
1501 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1502 can be added using this API to created arbitrary PKCS#12
1503 files while avoiding the low level API.
1505 New options to PKCS12_create(), key or cert can be NULL and
1506 will then be omitted from the output file. The encryption
1507 algorithm NIDs can be set to -1 for no encryption, the mac
1508 iteration count can be set to 0 to omit the mac.
1510 Enhance pkcs12 utility by making the -nokeys and -nocerts
1511 options work when creating a PKCS#12 file. New option -nomac
1512 to omit the mac, NONE can be set for an encryption algorithm.
1513 New code is modified to use the enhanced PKCS12_create()
1514 instead of the low level API.
1517 *) Extend ASN1 encoder to support indefinite length constructed
1518 encoding. This can output sequences tags and octet strings in
1519 this form. Modify pk7_asn1.c to support indefinite length
1520 encoding. This is experimental and needs additional code to
1521 be useful, such as an ASN1 bio and some enhanced streaming
1524 Extend template encode functionality so that tagging is passed
1525 down to the template encoder.
1528 *) Let 'openssl req' fail if an argument to '-newkey' is not
1529 recognized instead of using RSA as a default.
1532 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1533 As these are not official, they are not included in "ALL";
1534 the "ECCdraft" ciphersuite group alias can be used to select them.
1535 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1537 *) Add ECDH engine support.
1538 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1540 *) Add ECDH in new directory crypto/ecdh/.
1541 [Douglas Stebila (Sun Microsystems Laboratories)]
1543 *) Let BN_rand_range() abort with an error after 100 iterations
1544 without success (which indicates a broken PRNG).
1547 *) Change BN_mod_sqrt() so that it verifies that the input value
1548 is really the square of the return value. (Previously,
1549 BN_mod_sqrt would show GIGO behaviour.)
1552 *) Add named elliptic curves over binary fields from X9.62, SECG,
1553 and WAP/WTLS; add OIDs that were still missing.
1555 [Sheueling Chang Shantz and Douglas Stebila
1556 (Sun Microsystems Laboratories)]
1558 *) Extend the EC library for elliptic curves over binary fields
1559 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1562 EC_GF2m_simple_method
1566 EC_GROUP_new_curve_GF2m
1567 EC_GROUP_set_curve_GF2m
1568 EC_GROUP_get_curve_GF2m
1569 EC_POINT_set_affine_coordinates_GF2m
1570 EC_POINT_get_affine_coordinates_GF2m
1571 EC_POINT_set_compressed_coordinates_GF2m
1573 Point compression for binary fields is disabled by default for
1574 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1577 As binary polynomials are represented as BIGNUMs, various members
1578 of the EC_GROUP and EC_POINT data structures can be shared
1579 between the implementations for prime fields and binary fields;
1580 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1581 are essentially identical to their ..._GFp counterparts.
1582 (For simplicity, the '..._GFp' prefix has been dropped from
1583 various internal method names.)
1585 An internal 'field_div' method (similar to 'field_mul' and
1586 'field_sqr') has been added; this is used only for binary fields.
1588 [Sheueling Chang Shantz and Douglas Stebila
1589 (Sun Microsystems Laboratories)]
1591 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1592 through methods ('mul', 'precompute_mult').
1594 The generic implementations (now internally called 'ec_wNAF_mul'
1595 and 'ec_wNAF_precomputed_mult') remain the default if these
1596 methods are undefined.
1598 [Sheueling Chang Shantz and Douglas Stebila
1599 (Sun Microsystems Laboratories)]
1601 *) New function EC_GROUP_get_degree, which is defined through
1602 EC_METHOD. For curves over prime fields, this returns the bit
1603 length of the modulus.
1605 [Sheueling Chang Shantz and Douglas Stebila
1606 (Sun Microsystems Laboratories)]
1608 *) New functions EC_GROUP_dup, EC_POINT_dup.
1609 (These simply call ..._new and ..._copy).
1611 [Sheueling Chang Shantz and Douglas Stebila
1612 (Sun Microsystems Laboratories)]
1614 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1615 Polynomials are represented as BIGNUMs (where the sign bit is not
1616 used) in the following functions [macros]:
1619 BN_GF2m_sub [= BN_GF2m_add]
1620 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1621 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1622 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1624 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1625 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1626 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1627 BN_GF2m_cmp [= BN_ucmp]
1629 (Note that only the 'mod' functions are actually for fields GF(2^m).
1630 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1632 For some functions, an the irreducible polynomial defining a
1633 field can be given as an 'unsigned int[]' with strictly
1634 decreasing elements giving the indices of those bits that are set;
1635 i.e., p[] represents the polynomial
1636 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1638 p[0] > p[1] > ... > p[k] = 0.
1639 This applies to the following functions:
1644 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1645 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1647 BN_GF2m_mod_sqrt_arr
1648 BN_GF2m_mod_solve_quad_arr
1652 Conversion can be performed by the following functions:
1657 bntest.c has additional tests for binary polynomial arithmetic.
1659 Two implementations for BN_GF2m_mod_div() are available.
1660 The default algorithm simply uses BN_GF2m_mod_inv() and
1661 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1662 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1663 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1665 [Sheueling Chang Shantz and Douglas Stebila
1666 (Sun Microsystems Laboratories)]
1668 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1669 functionality is disabled at compile-time.
1670 [Douglas Stebila <douglas.stebila@sun.com>]
1672 *) Change default behaviour of 'openssl asn1parse' so that more
1673 information is visible when viewing, e.g., a certificate:
1675 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1676 mode the content of non-printable OCTET STRINGs is output in a
1677 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1678 avoid the appearance of a printable string.
1679 [Nils Larsch <nla@trustcenter.de>]
1681 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1683 EC_GROUP_set_asn1_flag()
1684 EC_GROUP_get_asn1_flag()
1685 EC_GROUP_set_point_conversion_form()
1686 EC_GROUP_get_point_conversion_form()
1687 These control ASN1 encoding details:
1688 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1689 has been set to OPENSSL_EC_NAMED_CURVE.
1690 - Points are encoded in uncompressed form by default; options for
1691 asn1_for are as for point2oct, namely
1692 POINT_CONVERSION_COMPRESSED
1693 POINT_CONVERSION_UNCOMPRESSED
1694 POINT_CONVERSION_HYBRID
1696 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1699 EC_GROUP_get0_seed()
1700 EC_GROUP_get_seed_len()
1701 This is used only for ASN1 purposes (so far).
1702 [Nils Larsch <nla@trustcenter.de>]
1704 *) Add 'field_type' member to EC_METHOD, which holds the NID
1705 of the appropriate field type OID. The new function
1706 EC_METHOD_get_field_type() returns this value.
1707 [Nils Larsch <nla@trustcenter.de>]
1712 EC_POINT_point2hex()
1713 EC_POINT_hex2point()
1714 providing useful interfaces to EC_POINT_point2oct() and
1715 EC_POINT_oct2point().
1716 [Nils Larsch <nla@trustcenter.de>]
1718 *) Change internals of the EC library so that the functions
1719 EC_GROUP_set_generator()
1720 EC_GROUP_get_generator()
1721 EC_GROUP_get_order()
1722 EC_GROUP_get_cofactor()
1723 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1724 to methods, which would lead to unnecessary code duplication when
1725 adding different types of curves.
1726 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1728 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1729 arithmetic, and such that modified wNAFs are generated
1730 (which avoid length expansion in many cases).
1733 *) Add a function EC_GROUP_check_discriminant() (defined via
1734 EC_METHOD) that verifies that the curve discriminant is non-zero.
1736 Add a function EC_GROUP_check() that makes some sanity tests
1737 on a EC_GROUP, its generator and order. This includes
1738 EC_GROUP_check_discriminant().
1739 [Nils Larsch <nla@trustcenter.de>]
1741 *) Add ECDSA in new directory crypto/ecdsa/.
1743 Add applications 'openssl ecparam' and 'openssl ecdsa'
1744 (these are based on 'openssl dsaparam' and 'openssl dsa').
1746 ECDSA support is also included in various other files across the
1747 library. Most notably,
1748 - 'openssl req' now has a '-newkey ecdsa:file' option;
1749 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1750 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1751 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1752 them suitable for ECDSA where domain parameters must be
1753 extracted before the specific public key;
1754 - ECDSA engine support has been added.
1755 [Nils Larsch <nla@trustcenter.de>]
1757 *) Include some named elliptic curves, and add OIDs from X9.62,
1758 SECG, and WAP/WTLS. Each curve can be obtained from the new
1760 EC_GROUP_new_by_curve_name(),
1761 and the list of available named curves can be obtained with
1762 EC_get_builtin_curves().
1763 Also add a 'curve_name' member to EC_GROUP objects, which can be
1765 EC_GROUP_set_curve_name()
1766 EC_GROUP_get_curve_name()
1767 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1769 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1770 was actually never needed) and in BN_mul(). The removal in BN_mul()
1771 required a small change in bn_mul_part_recursive() and the addition
1772 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1773 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1774 bn_sub_words() and bn_add_words() except they take arrays with
1778 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1780 *) Cleanse PEM buffers before freeing them since they may contain
1782 [Benjamin Bennett <ben@psc.edu>]
1784 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1785 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1786 authentication-only ciphersuites.
1789 *) Since AES128 and AES256 share a single mask bit in the logic of
1790 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1791 kludge to work properly if AES128 is available and AES256 isn't.
1794 *) Expand security boundary to match 1.1.1 module.
1797 *) Remove redundant features: hash file source, editing of test vectors
1798 modify fipsld to use external fips_premain.c signature.
1801 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1802 run algorithm test programs.
1805 *) Make algorithm test programs more tolerant of whitespace.
1808 *) Have SSL/TLS server implementation tolerate "mismatched" record
1809 protocol version while receiving ClientHello even if the
1810 ClientHello is fragmented. (The server can't insist on the
1811 particular protocol version it has chosen before the ServerHello
1812 message has informed the client about his choice.)
1815 *) Load error codes if they are not already present instead of using a
1816 static variable. This allows them to be cleanly unloaded and reloaded.
1819 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1821 *) Introduce limits to prevent malicious keys being able to
1822 cause a denial of service. (CVE-2006-2940)
1823 [Steve Henson, Bodo Moeller]
1825 *) Fix ASN.1 parsing of certain invalid structures that can result
1826 in a denial of service. (CVE-2006-2937) [Steve Henson]
1828 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1829 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1831 *) Fix SSL client code which could crash if connecting to a
1832 malicious SSLv2 server. (CVE-2006-4343)
1833 [Tavis Ormandy and Will Drewry, Google Security Team]
1835 *) Change ciphersuite string processing so that an explicit
1836 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1837 will no longer include "AES128-SHA"), and any other similar
1838 ciphersuite (same bitmap) from *other* protocol versions (so that
1839 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1840 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1841 changes from 0.9.8b and 0.9.8d.
1844 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1846 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1847 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1849 *) Change the Unix randomness entropy gathering to use poll() when
1850 possible instead of select(), since the latter has some
1851 undesirable limitations.
1852 [Darryl Miles via Richard Levitte and Bodo Moeller]
1854 *) Disable rogue ciphersuites:
1856 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1857 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1858 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1860 The latter two were purportedly from
1861 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1864 Also deactive the remaining ciphersuites from
1865 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1866 unofficial, and the ID has long expired.
1869 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1870 dual-core machines) and other potential thread-safety issues.
1873 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1875 *) Adapt fipsld and the build system to link against the validated FIPS
1876 module in FIPS mode.
1879 *) Fixes for VC++ 2005 build under Windows.
1882 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1883 from a Windows bash shell such as MSYS. It is autodetected from the
1884 "config" script when run from a VC++ environment. Modify standard VC++
1885 build to use fipscanister.o from the GNU make build.
1888 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1890 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1891 The value now differs depending on if you build for FIPS or not.
1892 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1893 safely run with a non-FIPSed libcrypto, as it may crash because of
1894 the difference induced by this change.
1897 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1899 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1900 (part of SSL_OP_ALL). This option used to disable the
1901 countermeasure against man-in-the-middle protocol-version
1902 rollback in the SSL 2.0 server implementation, which is a bad
1903 idea. (CVE-2005-2969)
1905 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1906 for Information Security, National Institute of Advanced Industrial
1907 Science and Technology [AIST], Japan)]
1909 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1910 mainly for FIPS compliance and not fully integrated at this stage.
1913 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1914 the exponentiation using a fixed-length exponent. (Otherwise,
1915 the information leaked through timing could expose the secret key
1916 after many signatures; cf. Bleichenbacher's attack on DSA with
1920 *) Make a new fixed-window mod_exp implementation the default for
1921 RSA, DSA, and DH private-key operations so that the sequence of
1922 squares and multiplies and the memory access pattern are
1923 independent of the particular secret key. This will mitigate
1924 cache-timing and potential related attacks.
1926 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1927 and this is automatically used by BN_mod_exp_mont() if the new flag
1928 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1929 will use this BN flag for private exponents unless the flag
1930 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1931 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1933 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1935 *) Change the client implementation for SSLv23_method() and
1936 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1937 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1938 (Previously, the SSL 2.0 backwards compatible Client Hello
1939 message format would be used even with SSL_OP_NO_SSLv2.)
1942 *) Add support for smime-type MIME parameter in S/MIME messages which some
1946 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1947 a threadsafe manner. Modify rsa code to use new function and add calls
1948 to dsa and dh code (which had race conditions before).
1951 *) Include the fixed error library code in the C error file definitions
1952 instead of fixing them up at runtime. This keeps the error code
1953 structures constant.
1956 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1958 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1961 *) Fixes for newer kerberos headers. NB: the casts are needed because
1962 the 'length' field is signed on one version and unsigned on another
1963 with no (?) obvious way to tell the difference, without these VC++
1964 complains. Also the "definition" of FAR (blank) is no longer included
1965 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1966 some needed definitions.
1969 *) Undo Cygwin change.
1972 *) Added support for proxy certificates according to RFC 3820.
1973 Because they may be a security thread to unaware applications,
1974 they must be explicitely allowed in run-time. See
1975 docs/HOWTO/proxy_certificates.txt for further information.
1978 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1980 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1981 server and client random values. Previously
1982 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1983 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1985 This change has negligible security impact because:
1987 1. Server and client random values still have 24 bytes of pseudo random
1990 2. Server and client random values are sent in the clear in the initial
1993 3. The master secret is derived using the premaster secret (48 bytes in
1994 size for static RSA ciphersuites) as well as client server and random
1997 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2000 [Stephen Henson, reported by UK NISCC]
2002 *) Use Windows randomness collection on Cygwin.
2005 *) Fix hang in EGD/PRNGD query when communication socket is closed
2006 prematurely by EGD/PRNGD.
2007 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2009 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2012 *) Back-port of selected performance improvements from development
2013 branch, as well as improved support for PowerPC platforms.
2016 *) Add lots of checks for memory allocation failure, error codes to indicate
2017 failure and freeing up memory if a failure occurs.
2018 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2020 *) Add new -passin argument to dgst.
2023 *) Perform some character comparisons of different types in X509_NAME_cmp:
2024 this is needed for some certificates that reencode DNs into UTF8Strings
2025 (in violation of RFC3280) and can't or wont issue name rollover
2029 *) Make an explicit check during certificate validation to see that
2030 the CA setting in each certificate on the chain is correct. As a
2031 side effect always do the following basic checks on extensions,
2032 not just when there's an associated purpose to the check:
2034 - if there is an unhandled critical extension (unless the user
2035 has chosen to ignore this fault)
2036 - if the path length has been exceeded (if one is set at all)
2037 - that certain extensions fit the associated purpose (if one has
2041 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2043 *) Avoid a race condition when CRLs are checked in a multi threaded
2044 environment. This would happen due to the reordering of the revoked
2045 entries during signature checking and serial number lookup. Now the
2046 encoding is cached and the serial number sort performed under a lock.
2047 Add new STACK function sk_is_sorted().
2050 *) Add Delta CRL to the extension code.
2053 *) Various fixes to s3_pkt.c so alerts are sent properly.
2054 [David Holmes <d.holmes@f5.com>]
2056 *) Reduce the chances of duplicate issuer name and serial numbers (in
2057 violation of RFC3280) using the OpenSSL certificate creation utilities.
2058 This is done by creating a random 64 bit value for the initial serial
2059 number when a serial number file is created or when a self signed
2060 certificate is created using 'openssl req -x509'. The initial serial
2061 number file is created using 'openssl x509 -next_serial' in CA.pl
2062 rather than being initialized to 1.
2065 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2067 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2068 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2069 [Joe Orton, Steve Henson]
2071 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2073 [Joe Orton, Steve Henson]
2075 *) Make it possible to have multiple active certificates with the same
2076 subject in the CA index file. This is done only if the keyword
2077 'unique_subject' is set to 'no' in the main CA section (default
2078 if 'CA_default') of the configuration file. The value is saved
2079 with the database itself in a separate index attribute file,
2080 named like the index file with '.attr' appended to the name.
2083 *) X509 verify fixes. Disable broken certificate workarounds when
2084 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2085 keyUsage extension present. Don't accept CRLs with unhandled critical
2086 extensions: since verify currently doesn't process CRL extensions this
2087 rejects a CRL with *any* critical extensions. Add new verify error codes
2091 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2092 A clarification of RFC2560 will require the use of OCTET STRINGs and
2093 some implementations cannot handle the current raw format. Since OpenSSL
2094 copies and compares OCSP nonces as opaque blobs without any attempt at
2095 parsing them this should not create any compatibility issues.
2098 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2099 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2100 this HMAC (and other) operations are several times slower than OpenSSL
2104 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2105 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2107 *) Use the correct content when signing type "other".
2110 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2112 *) Fix various bugs revealed by running the NISCC test suite:
2114 Stop out of bounds reads in the ASN1 code when presented with
2115 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2117 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2119 If verify callback ignores invalid public key errors don't try to check
2120 certificate signature with the NULL public key.
2124 *) New -ignore_err option in ocsp application to stop the server
2125 exiting on the first error in a request.
2128 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2129 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2133 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2134 extra data after the compression methods not only for TLS 1.0
2135 but also for SSL 3.0 (as required by the specification).
2136 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2138 *) Change X509_certificate_type() to mark the key as exported/exportable
2139 when it's 512 *bits* long, not 512 bytes.
2142 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2143 blocks during encryption.
2146 *) Various fixes to base64 BIO and non blocking I/O. On write
2147 flushes were not handled properly if the BIO retried. On read
2148 data was not being buffered properly and had various logic bugs.
2149 This also affects blocking I/O when the data being decoded is a
2153 *) Various S/MIME bugfixes and compatibility changes:
2154 output correct application/pkcs7 MIME type if
2155 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2156 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2157 of files as .eml work). Correctly handle very long lines in MIME
2161 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2163 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2164 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2165 a protocol version number mismatch like a decryption error
2166 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2169 *) Turn on RSA blinding by default in the default implementation
2170 to avoid a timing attack. Applications that don't want it can call
2171 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2172 They would be ill-advised to do so in most cases.
2173 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2175 *) Change RSA blinding code so that it works when the PRNG is not
2176 seeded (in this case, the secret RSA exponent is abused as
2177 an unpredictable seed -- if it is not unpredictable, there
2178 is no point in blinding anyway). Make RSA blinding thread-safe
2179 by remembering the creator's thread ID in rsa->blinding and
2180 having all other threads use local one-time blinding factors
2181 (this requires more computation than sharing rsa->blinding, but
2182 avoids excessive locking; and if an RSA object is not shared
2183 between threads, blinding will still be very fast).
2186 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2187 ENGINE as defaults for all supported algorithms irrespective of
2188 the 'flags' parameter. 'flags' is now honoured, so applications
2189 should make sure they are passing it correctly.
2192 *) Target "mingw" now allows native Windows code to be generated in
2193 the Cygwin environment as well as with the MinGW compiler.
2196 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2198 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2199 via timing by performing a MAC computation even if incorrrect
2200 block cipher padding has been found. This is a countermeasure
2201 against active attacks where the attacker has to distinguish
2202 between bad padding and a MAC verification error. (CVE-2003-0078)
2204 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2205 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2206 Martin Vuagnoux (EPFL, Ilion)]
2208 *) Make the no-err option work as intended. The intention with no-err
2209 is not to have the whole error stack handling routines removed from
2210 libcrypto, it's only intended to remove all the function name and
2211 reason texts, thereby removing some of the footprint that may not
2212 be interesting if those errors aren't displayed anyway.
2214 NOTE: it's still possible for any application or module to have it's
2215 own set of error texts inserted. The routines are there, just not
2216 used by default when no-err is given.
2219 *) Add support for FreeBSD on IA64.
2220 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2222 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2223 Kerberos function mit_des_cbc_cksum(). Before this change,
2224 the value returned by DES_cbc_cksum() was like the one from
2225 mit_des_cbc_cksum(), except the bytes were swapped.
2226 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2228 *) Allow an application to disable the automatic SSL chain building.
2229 Before this a rather primitive chain build was always performed in
2230 ssl3_output_cert_chain(): an application had no way to send the
2231 correct chain if the automatic operation produced an incorrect result.
2233 Now the chain builder is disabled if either:
2235 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2237 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2239 The reasoning behind this is that an application would not want the
2240 auto chain building to take place if extra chain certificates are
2241 present and it might also want a means of sending no additional
2242 certificates (for example the chain has two certificates and the
2246 *) Add the possibility to build without the ENGINE framework.
2247 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2249 *) Under Win32 gmtime() can return NULL: check return value in
2250 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2253 *) DSA routines: under certain error conditions uninitialized BN objects
2254 could be freed. Solution: make sure initialization is performed early
2255 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2256 Nils Larsch <nla@trustcenter.de> via PR#459)
2259 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2260 checked on reconnect on the client side, therefore session resumption
2261 could still fail with a "ssl session id is different" error. This
2262 behaviour is masked when SSL_OP_ALL is used due to
2263 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2264 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2265 followup to PR #377.
2268 *) IA-32 assembler support enhancements: unified ELF targets, support
2269 for SCO/Caldera platforms, fix for Cygwin shared build.
2272 *) Add support for FreeBSD on sparc64. As a consequence, support for
2273 FreeBSD on non-x86 processors is separate from x86 processors on
2274 the config script, much like the NetBSD support.
2275 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2277 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2279 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2282 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2283 code (06) was taken as the first octet of the session ID and the last
2284 octet was ignored consequently. As a result SSLv2 client side session
2285 caching could not have worked due to the session ID mismatch between
2287 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2291 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2292 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2296 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2297 seems that in spite of existing for more than a year, many application
2298 author have done nothing to provide the necessary callbacks, which
2299 means that this particular engine will not work properly anywhere.
2300 This is a very unfortunate situation which forces us, in the name
2301 of usability, to give the hw_ncipher.c a static lock, which is part
2303 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2304 appear in 0.9.8 or later. We EXPECT application authors to have
2305 dealt properly with this when 0.9.8 is released (unless we actually
2306 make such changes in the libcrypto locking code that changes will
2307 have to be made anyway).
2310 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2311 octets have been read, EOF or an error occurs. Without this change
2312 some truncated ASN1 structures will not produce an error.
2315 *) Disable Heimdal support, since it hasn't been fully implemented.
2316 Still give the possibility to force the use of Heimdal, but with
2317 warnings and a request that patches get sent to openssl-dev.
2320 *) Add the VC-CE target, introduce the WINCE sysname, and add
2321 INSTALL.WCE and appropriate conditionals to make it build.
2322 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2324 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2325 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2326 edit numbers of the version.
2327 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2329 *) Introduce safe string copy and catenation functions
2330 (BUF_strlcpy() and BUF_strlcat()).
2331 [Ben Laurie (CHATS) and Richard Levitte]
2333 *) Avoid using fixed-size buffers for one-line DNs.
2334 [Ben Laurie (CHATS)]
2336 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2337 resizing buffers containing secrets, and use where appropriate.
2338 [Ben Laurie (CHATS)]
2340 *) Avoid using fixed size buffers for configuration file location.
2341 [Ben Laurie (CHATS)]
2343 *) Avoid filename truncation for various CA files.
2344 [Ben Laurie (CHATS)]
2346 *) Use sizeof in preference to magic numbers.
2347 [Ben Laurie (CHATS)]
2349 *) Avoid filename truncation in cert requests.
2350 [Ben Laurie (CHATS)]
2352 *) Add assertions to check for (supposedly impossible) buffer
2354 [Ben Laurie (CHATS)]
2356 *) Don't cache truncated DNS entries in the local cache (this could
2357 potentially lead to a spoofing attack).
2358 [Ben Laurie (CHATS)]
2360 *) Fix various buffers to be large enough for hex/decimal
2361 representations in a platform independent manner.
2362 [Ben Laurie (CHATS)]
2364 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2365 resizing buffers containing secrets, and use where appropriate.
2366 [Ben Laurie (CHATS)]
2368 *) Add BIO_indent() to avoid much slightly worrying code to do
2370 [Ben Laurie (CHATS)]
2372 *) Convert sprintf()/BIO_puts() to BIO_printf().
2373 [Ben Laurie (CHATS)]
2375 *) buffer_gets() could terminate with the buffer only half
2377 [Ben Laurie (CHATS)]
2379 *) Add assertions to prevent user-supplied crypto functions from
2380 overflowing internal buffers by having large block sizes, etc.
2381 [Ben Laurie (CHATS)]
2383 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2385 [Ben Laurie (CHATS)]
2387 *) Eliminate unused copy of key in RC4.
2388 [Ben Laurie (CHATS)]
2390 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2391 [Ben Laurie (CHATS)]
2393 *) Fix off-by-one error in EGD path.
2394 [Ben Laurie (CHATS)]
2396 *) If RANDFILE path is too long, ignore instead of truncating.
2397 [Ben Laurie (CHATS)]
2399 *) Eliminate unused and incorrectly sized X.509 structure
2401 [Ben Laurie (CHATS)]
2403 *) Eliminate unused and dangerous function knumber().
2404 [Ben Laurie (CHATS)]
2406 *) Eliminate unused and dangerous structure, KSSL_ERR.
2407 [Ben Laurie (CHATS)]
2409 *) Protect against overlong session ID context length in an encoded
2410 session object. Since these are local, this does not appear to be
2412 [Ben Laurie (CHATS)]
2414 *) Change from security patch (see 0.9.6e below) that did not affect
2415 the 0.9.6 release series:
2417 Remote buffer overflow in SSL3 protocol - an attacker could
2418 supply an oversized master key in Kerberos-enabled versions.
2420 [Ben Laurie (CHATS)]
2422 *) Change the SSL kerb5 codes to match RFC 2712.
2425 *) Make -nameopt work fully for req and add -reqopt switch.
2426 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2428 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2429 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2431 *) Make sure tests can be performed even if the corresponding algorithms
2432 have been removed entirely. This was also the last step to make
2433 OpenSSL compilable with DJGPP under all reasonable conditions.
2434 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2436 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2437 to allow version independent disabling of normally unselected ciphers,
2438 which may be activated as a side-effect of selecting a single cipher.
2440 (E.g., cipher list string "RSA" enables ciphersuites that are left
2441 out of "ALL" because they do not provide symmetric encryption.
2442 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2443 [Lutz Jaenicke, Bodo Moeller]
2445 *) Add appropriate support for separate platform-dependent build
2446 directories. The recommended way to make a platform-dependent
2447 build directory is the following (tested on Linux), maybe with
2450 # Place yourself outside of the OpenSSL source tree. In
2451 # this example, the environment variable OPENSSL_SOURCE
2452 # is assumed to contain the absolute OpenSSL source directory.
2453 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2454 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2455 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2456 mkdir -p `dirname $F`
2457 ln -s $OPENSSL_SOURCE/$F $F
2460 To be absolutely sure not to disturb the source tree, a "make clean"
2461 is a good thing. If it isn't successfull, don't worry about it,
2462 it probably means the source directory is very clean.
2465 *) Make sure any ENGINE control commands make local copies of string
2466 pointers passed to them whenever necessary. Otherwise it is possible
2467 the caller may have overwritten (or deallocated) the original string
2468 data when a later ENGINE operation tries to use the stored values.
2469 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2471 *) Improve diagnostics in file reading and command-line digests.
2472 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2474 *) Add AES modes CFB and OFB to the object database. Correct an
2475 error in AES-CFB decryption.
2478 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2479 allows existing EVP_CIPHER_CTX structures to be reused after
2480 calling EVP_*Final(). This behaviour is used by encryption
2481 BIOs and some applications. This has the side effect that
2482 applications must explicitly clean up cipher contexts with
2483 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2486 *) Check the values of dna and dnb in bn_mul_recursive before calling
2487 bn_mul_comba (a non zero value means the a or b arrays do not contain
2488 n2 elements) and fallback to bn_mul_normal if either is not zero.
2491 *) Fix escaping of non-ASCII characters when using the -subj option
2492 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2495 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2496 form for "surname", serialNumber has no short form.
2497 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2498 therefore remove "mail" short name for "internet 7".
2499 The OID for unique identifiers in X509 certificates is
2500 x500UniqueIdentifier, not uniqueIdentifier.
2501 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2504 *) Add an "init" command to the ENGINE config module and auto initialize
2505 ENGINEs. Without any "init" command the ENGINE will be initialized
2506 after all ctrl commands have been executed on it. If init=1 the
2507 ENGINE is initailized at that point (ctrls before that point are run
2508 on the uninitialized ENGINE and after on the initialized one). If
2509 init=0 then the ENGINE will not be iniatialized at all.
2512 *) Fix the 'app_verify_callback' interface so that the user-defined
2513 argument is actually passed to the callback: In the
2514 SSL_CTX_set_cert_verify_callback() prototype, the callback
2515 declaration has been changed from
2518 int (*cb)(X509_STORE_CTX *,void *);
2519 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2520 i=s->ctx->app_verify_callback(&ctx)
2521 has been changed into
2522 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2524 To update applications using SSL_CTX_set_cert_verify_callback(),
2525 a dummy argument can be added to their callback functions.
2526 [D. K. Smetters <smetters@parc.xerox.com>]
2528 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2529 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2531 *) Add and OPENSSL_LOAD_CONF define which will cause
2532 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2533 This allows older applications to transparently support certain
2534 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2535 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2536 load the config file and OPENSSL_add_all_algorithms_conf() which will
2537 always load it have also been added.
2540 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2541 Adjust NIDs and EVP layer.
2542 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2544 *) Config modules support in openssl utility.
2546 Most commands now load modules from the config file,
2547 though in a few (such as version) this isn't done
2548 because it couldn't be used for anything.
2550 In the case of ca and req the config file used is
2551 the same as the utility itself: that is the -config
2552 command line option can be used to specify an
2556 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2557 use "openssl_conf" if filename is NULL use default openssl config file.
2560 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2561 config section name. Add a new flag to tolerate a missing config file
2562 and move code to CONF_modules_load_file().
2565 *) Support for crypto accelerator cards from Accelerated Encryption
2566 Processing, www.aep.ie. (Use engine 'aep')
2567 The support was copied from 0.9.6c [engine] and adapted/corrected
2568 to work with the new engine framework.
2569 [AEP Inc. and Richard Levitte]
2571 *) Support for SureWare crypto accelerator cards from Baltimore
2572 Technologies. (Use engine 'sureware')
2573 The support was copied from 0.9.6c [engine] and adapted
2574 to work with the new engine framework.
2577 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2578 make the newer ENGINE framework commands for the CHIL engine work.
2579 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2581 *) Make it possible to produce shared libraries on ReliantUNIX.
2582 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2584 *) Add the configuration target debug-linux-ppro.
2585 Make 'openssl rsa' use the general key loading routines
2586 implemented in apps.c, and make those routines able to
2587 handle the key format FORMAT_NETSCAPE and the variant
2589 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2591 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2592 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2594 *) Add -keyform to rsautl, and document -engine.
2595 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2597 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2598 BIO_R_NO_SUCH_FILE error code rather than the generic
2599 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2602 *) Add new functions
2604 ERR_peek_last_error_line
2605 ERR_peek_last_error_line_data.
2606 These are similar to
2609 ERR_peek_error_line_data,
2610 but report on the latest error recorded rather than the first one
2611 still in the error queue.
2612 [Ben Laurie, Bodo Moeller]
2614 *) default_algorithms option in ENGINE config module. This allows things
2616 default_algorithms = ALL
2617 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2620 *) Prelminary ENGINE config module.
2623 *) New experimental application configuration code.
2626 *) Change the AES code to follow the same name structure as all other
2627 symmetric ciphers, and behave the same way. Move everything to
2628 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2629 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2631 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2632 [Ben Laurie and Theo de Raadt]
2634 *) Add option to output public keys in req command.
2635 [Massimiliano Pala madwolf@openca.org]
2637 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2638 (up to about 10% better than before for P-192 and P-224).
2641 *) New functions/macros
2643 SSL_CTX_set_msg_callback(ctx, cb)
2644 SSL_CTX_set_msg_callback_arg(ctx, arg)
2645 SSL_set_msg_callback(ssl, cb)
2646 SSL_set_msg_callback_arg(ssl, arg)
2648 to request calling a callback function
2650 void cb(int write_p, int version, int content_type,
2651 const void *buf, size_t len, SSL *ssl, void *arg)
2653 whenever a protocol message has been completely received
2654 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2655 protocol version according to which the SSL library interprets
2656 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2657 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2658 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2659 specification (change_cipher_spec(20), alert(21), handshake(22)).
2660 'buf' and 'len' point to the actual message, 'ssl' to the
2661 SSL object, and 'arg' is the application-defined value set by
2662 SSL[_CTX]_set_msg_callback_arg().
2664 'openssl s_client' and 'openssl s_server' have new '-msg' options
2665 to enable a callback that displays all protocol messages.
2668 *) Change the shared library support so shared libraries are built as
2669 soon as the corresponding static library is finished, and thereby get
2670 openssl and the test programs linked against the shared library.
2671 This still only happens when the keyword "shard" has been given to
2672 the configuration scripts.
2674 NOTE: shared library support is still an experimental thing, and
2675 backward binary compatibility is still not guaranteed.
2676 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2678 *) Add support for Subject Information Access extension.
2679 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2681 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2682 additional bytes when new memory had to be allocated, not just
2683 when reusing an existing buffer.
2686 *) New command line and configuration option 'utf8' for the req command.
2687 This allows field values to be specified as UTF8 strings.
2690 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2691 runs for the former and machine-readable output for the latter.
2694 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2695 of the e-mail address in the DN (i.e., it will go into a certificate
2696 extension only). The new configuration file option 'email_in_dn = no'
2697 has the same effect.
2698 [Massimiliano Pala madwolf@openca.org]
2700 *) Change all functions with names starting with des_ to be starting
2701 with DES_ instead. Add wrappers that are compatible with libdes,
2702 but are named _ossl_old_des_*. Finally, add macros that map the
2703 des_* symbols to the corresponding _ossl_old_des_* if libdes
2704 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2705 desired, the des_* symbols will be mapped to DES_*, with one
2708 Since we provide two compatibility mappings, the user needs to
2709 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2710 compatibility is desired. The default (i.e., when that macro
2711 isn't defined) is OpenSSL 0.9.6c compatibility.
2713 There are also macros that enable and disable the support of old
2714 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2715 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2716 are defined, the default will apply: to support the old des routines.
2718 In either case, one must include openssl/des.h to get the correct
2719 definitions. Do not try to just include openssl/des_old.h, that
2722 NOTE: This is a major break of an old API into a new one. Software
2723 authors are encouraged to switch to the DES_ style functions. Some
2724 time in the future, des_old.h and the libdes compatibility functions
2725 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2726 default), and then completely removed.
2729 *) Test for certificates which contain unsupported critical extensions.
2730 If such a certificate is found during a verify operation it is
2731 rejected by default: this behaviour can be overridden by either
2732 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2733 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2734 X509_supported_extension() has also been added which returns 1 if a
2735 particular extension is supported.
2738 *) Modify the behaviour of EVP cipher functions in similar way to digests
2739 to retain compatibility with existing code.
2742 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2743 compatibility with existing code. In particular the 'ctx' parameter does
2744 not have to be to be initialized before the call to EVP_DigestInit() and
2745 it is tidied up after a call to EVP_DigestFinal(). New function
2746 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2747 EVP_MD_CTX_copy() changed to not require the destination to be
2748 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2749 requires the destination to be valid.
2751 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2752 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2755 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2756 so that complete 'Handshake' protocol structures are kept in memory
2757 instead of overwriting 'msg_type' and 'length' with 'body' data.
2760 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2761 [Massimo Santin via Richard Levitte]
2763 *) Major restructuring to the underlying ENGINE code. This includes
2764 reduction of linker bloat, separation of pure "ENGINE" manipulation
2765 (initialisation, etc) from functionality dealing with implementations
2766 of specific crypto iterfaces. This change also introduces integrated
2767 support for symmetric ciphers and digest implementations - so ENGINEs
2768 can now accelerate these by providing EVP_CIPHER and EVP_MD
2769 implementations of their own. This is detailed in crypto/engine/README
2770 as it couldn't be adequately described here. However, there are a few
2771 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2772 were changed in the original introduction of ENGINE code have now
2773 reverted back - the hooking from this code to ENGINE is now a good
2774 deal more passive and at run-time, operations deal directly with
2775 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2776 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2777 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2778 they were not being used by the framework as there is no concept of a
2779 BIGNUM_METHOD and they could not be generalised to the new
2780 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2781 ENGINE_cpy() has been removed as it cannot be consistently defined in
2785 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2788 *) Change mkdef.pl to sort symbols that get the same entry number,
2789 and make sure the automatically generated functions ERR_load_*
2790 become part of libeay.num as well.
2793 *) New function SSL_renegotiate_pending(). This returns true once
2794 renegotiation has been requested (either SSL_renegotiate() call
2795 or HelloRequest/ClientHello receveived from the peer) and becomes
2796 false once a handshake has been completed.
2797 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2798 sends a HelloRequest, but does not ensure that a handshake takes
2799 place. SSL_renegotiate_pending() is useful for checking if the
2800 client has followed the request.)
2803 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2804 By default, clients may request session resumption even during
2805 renegotiation (if session ID contexts permit); with this option,
2806 session resumption is possible only in the first handshake.
2808 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2809 more bits available for options that should not be part of
2810 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2813 *) Add some demos for certificate and certificate request creation.
2816 *) Make maximum certificate chain size accepted from the peer application
2817 settable (SSL*_get/set_max_cert_list()), as proposed by
2818 "Douglas E. Engert" <deengert@anl.gov>.
2821 *) Add support for shared libraries for Unixware-7
2822 (Boyd Lynn Gerber <gerberb@zenez.com>).
2825 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2826 be done prior to destruction. Use this to unload error strings from
2827 ENGINEs that load their own error strings. NB: This adds two new API
2828 functions to "get" and "set" this destroy handler in an ENGINE.
2831 *) Alter all existing ENGINE implementations (except "openssl" and
2832 "openbsd") to dynamically instantiate their own error strings. This
2833 makes them more flexible to be built both as statically-linked ENGINEs
2834 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2835 Also, add stub code to each that makes building them as self-contained
2836 shared-libraries easier (see README.ENGINE).
2839 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2840 implementations into applications that are completely implemented in
2841 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2842 commands that can be used to configure what shared-library to load and
2843 to control aspects of the way it is handled. Also, made an update to
2844 the README.ENGINE file that brings its information up-to-date and
2845 provides some information and instructions on the "dynamic" ENGINE
2846 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2849 *) Make it possible to unload ranges of ERR strings with a new
2850 "ERR_unload_strings" function.
2853 *) Add a copy() function to EVP_MD.
2856 *) Make EVP_MD routines take a context pointer instead of just the
2857 md_data void pointer.
2860 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2861 that the digest can only process a single chunk of data
2862 (typically because it is provided by a piece of
2863 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2864 is only going to provide a single chunk of data, and hence the
2865 framework needn't accumulate the data for oneshot drivers.
2868 *) As with "ERR", make it possible to replace the underlying "ex_data"
2869 functions. This change also alters the storage and management of global
2870 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2871 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2872 index counters. The API functions that use this state have been changed
2873 to take a "class_index" rather than pointers to the class's local STACK
2874 and counter, and there is now an API function to dynamically create new
2875 classes. This centralisation allows us to (a) plug a lot of the
2876 thread-safety problems that existed, and (b) makes it possible to clean
2877 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2878 such data would previously have always leaked in application code and
2879 workarounds were in place to make the memory debugging turn a blind eye
2880 to it. Application code that doesn't use this new function will still
2881 leak as before, but their memory debugging output will announce it now
2882 rather than letting it slide.
2884 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2885 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2886 has a return value to indicate success or failure.
2889 *) Make it possible to replace the underlying "ERR" functions such that the
2890 global state (2 LHASH tables and 2 locks) is only used by the "default"
2891 implementation. This change also adds two functions to "get" and "set"
2892 the implementation prior to it being automatically set the first time
2893 any other ERR function takes place. Ie. an application can call "get",
2894 pass the return value to a module it has just loaded, and that module
2895 can call its own "set" function using that value. This means the
2896 module's "ERR" operations will use (and modify) the error state in the
2897 application and not in its own statically linked copy of OpenSSL code.
2900 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2901 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2902 the operation, and provides a more encapsulated way for external code
2903 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2904 to use these functions rather than manually incrementing the counts.
2906 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2909 *) Add EVP test program.
2912 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2915 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2916 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2917 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2918 These allow a CRL to be built without having to access X509_CRL fields
2919 directly. Modify 'ca' application to use new functions.
2922 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2923 bug workarounds. Rollback attack detection is a security feature.
2924 The problem will only arise on OpenSSL servers when TLSv1 is not
2925 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2926 Software authors not wanting to support TLSv1 will have special reasons
2927 for their choice and can explicitly enable this option.
2928 [Bodo Moeller, Lutz Jaenicke]
2930 *) Rationalise EVP so it can be extended: don't include a union of
2931 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2932 (similar to those existing for EVP_CIPHER_CTX).
2937 EVP_MD_CTX_init(&md); /* new function call */
2938 EVP_DigestInit(&md, EVP_sha1());
2939 EVP_DigestUpdate(&md, in, len);
2940 EVP_DigestFinal(&md, out, NULL);
2941 EVP_MD_CTX_cleanup(&md); /* new function call */
2945 *) Make DES key schedule conform to the usual scheme, as well as
2946 correcting its structure. This means that calls to DES functions
2947 now have to pass a pointer to a des_key_schedule instead of a
2948 plain des_key_schedule (which was actually always a pointer
2951 des_key_schedule ks;
2953 des_set_key_checked(..., &ks);
2954 des_ncbc_encrypt(..., &ks, ...);
2956 (Note that a later change renames 'des_...' into 'DES_...'.)
2959 *) Initial reduction of linker bloat: the use of some functions, such as
2960 PEM causes large amounts of unused functions to be linked in due to
2961 poor organisation. For example pem_all.c contains every PEM function
2962 which has a knock on effect of linking in large amounts of (unused)
2963 ASN1 code. Grouping together similar functions and splitting unrelated
2964 functions prevents this.
2967 *) Cleanup of EVP macros.
2970 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2971 correct _ecb suffix.
2974 *) Add initial OCSP responder support to ocsp application. The
2975 revocation information is handled using the text based index
2976 use by the ca application. The responder can either handle
2977 requests generated internally, supplied in files (for example
2978 via a CGI script) or using an internal minimal server.
2981 *) Add configuration choices to get zlib compression for TLS.
2984 *) Changes to Kerberos SSL for RFC 2712 compliance:
2985 1. Implemented real KerberosWrapper, instead of just using
2986 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2987 2. Implemented optional authenticator field of KerberosWrapper.
2989 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2990 and authenticator structs; see crypto/krb5/.
2992 Generalized Kerberos calls to support multiple Kerberos libraries.
2993 [Vern Staats <staatsvr@asc.hpc.mil>,
2994 Jeffrey Altman <jaltman@columbia.edu>
2995 via Richard Levitte]
2997 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2998 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2999 values for each of the key sizes rather than having just
3000 parameters (and 'speed' generating keys each time).
3003 *) Speed up EVP routines.
3006 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3007 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3008 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3009 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3011 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3012 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3013 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3016 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3018 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3021 *) Added the OS2-EMX target.
3022 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3024 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3025 to support NCONF routines in extension code. New function CONF_set_nconf()
3026 to allow functions which take an NCONF to also handle the old LHASH
3027 structure: this means that the old CONF compatible routines can be
3028 retained (in particular wrt extensions) without having to duplicate the
3029 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3032 *) Enhance the general user interface with mechanisms for inner control
3033 and with possibilities to have yes/no kind of prompts.
3036 *) Change all calls to low level digest routines in the library and
3037 applications to use EVP. Add missing calls to HMAC_cleanup() and
3038 don't assume HMAC_CTX can be copied using memcpy().
3039 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3041 *) Add the possibility to control engines through control names but with
3042 arbitrary arguments instead of just a string.
3043 Change the key loaders to take a UI_METHOD instead of a callback
3044 function pointer. NOTE: this breaks binary compatibility with earlier
3045 versions of OpenSSL [engine].
3046 Adapt the nCipher code for these new conditions and add a card insertion
3050 *) Enhance the general user interface with mechanisms to better support
3051 dialog box interfaces, application-defined prompts, the possibility
3052 to use defaults (for example default passwords from somewhere else)
3053 and interrupts/cancellations.
3056 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3057 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3060 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3061 tidy up some unnecessarily weird code in 'sk_new()').
3062 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3064 *) Change the key loading routines for ENGINEs to use the same kind
3065 callback (pem_password_cb) as all other routines that need this
3069 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3070 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3071 than this minimum value is recommended.
3074 *) New random seeder for OpenVMS, using the system process statistics
3075 that are easily reachable.
3078 *) Windows apparently can't transparently handle global
3079 variables defined in DLLs. Initialisations such as:
3081 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3083 wont compile. This is used by the any applications that need to
3084 declare their own ASN1 modules. This was fixed by adding the option
3085 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3086 needed for static libraries under Win32.
3089 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3090 setting of purpose and trust fields. New X509_STORE trust and
3091 purpose functions and tidy up setting in other SSL functions.
3094 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3095 structure. These are inherited by X509_STORE_CTX when it is
3096 initialised. This allows various defaults to be set in the
3097 X509_STORE structure (such as flags for CRL checking and custom
3098 purpose or trust settings) for functions which only use X509_STORE_CTX
3099 internally such as S/MIME.
3101 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3102 trust settings if they are not set in X509_STORE. This allows X509_STORE
3103 purposes and trust (in S/MIME for example) to override any set by default.
3105 Add command line options for CRL checking to smime, s_client and s_server
3109 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3110 are set then the CRL is looked up in the X509_STORE structure and
3111 its validity and signature checked, then if the certificate is found
3112 in the CRL the verify fails with a revoked error.
3114 Various new CRL related callbacks added to X509_STORE_CTX structure.
3116 Command line options added to 'verify' application to support this.
3118 This needs some additional work, such as being able to handle multiple
3119 CRLs with different times, extension based lookup (rather than just
3120 by subject name) and ultimately more complete V2 CRL extension
3124 *) Add a general user interface API (crypto/ui/). This is designed
3125 to replace things like des_read_password and friends (backward
3126 compatibility functions using this new API are provided).
3127 The purpose is to remove prompting functions from the DES code
3128 section as well as provide for prompting through dialog boxes in
3129 a window system and the like.
3132 *) Add "ex_data" support to ENGINE so implementations can add state at a
3133 per-structure level rather than having to store it globally.
3136 *) Make it possible for ENGINE structures to be copied when retrieved by
3137 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3138 This causes the "original" ENGINE structure to act like a template,
3139 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3140 operational state can be localised to each ENGINE structure, despite the
3141 fact they all share the same "methods". New ENGINE structures returned in
3142 this case have no functional references and the return value is the single
3143 structural reference. This matches the single structural reference returned
3144 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3148 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3149 needs to match any other type at all we need to manually clear the
3153 *) Changes to the "openssl engine" utility to include;
3154 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3155 about an ENGINE's available control commands.
3156 - executing control commands from command line arguments using the
3157 '-pre' and '-post' switches. '-post' is only used if '-t' is
3158 specified and the ENGINE is successfully initialised. The syntax for
3159 the individual commands are colon-separated, for example;
3160 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3163 *) New dynamic control command support for ENGINEs. ENGINEs can now
3164 declare their own commands (numbers), names (strings), descriptions,
3165 and input types for run-time discovery by calling applications. A
3166 subset of these commands are implicitly classed as "executable"
3167 depending on their input type, and only these can be invoked through
3168 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3169 can be based on user input, config files, etc). The distinction is
3170 that "executable" commands cannot return anything other than a boolean
3171 result and can only support numeric or string input, whereas some
3172 discoverable commands may only be for direct use through
3173 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3174 pointers, or other custom uses. The "executable" commands are to
3175 support parameterisations of ENGINE behaviour that can be
3176 unambiguously defined by ENGINEs and used consistently across any
3177 OpenSSL-based application. Commands have been added to all the
3178 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3179 control over shared-library paths without source code alterations.
3182 *) Changed all ENGINE implementations to dynamically allocate their
3183 ENGINEs rather than declaring them statically. Apart from this being
3184 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3185 this also allows the implementations to compile without using the
3186 internal engine_int.h header.
3189 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3190 'const' value. Any code that should be able to modify a RAND_METHOD
3191 should already have non-const pointers to it (ie. they should only
3192 modify their own ones).
3195 *) Made a variety of little tweaks to the ENGINE code.
3196 - "atalla" and "ubsec" string definitions were moved from header files
3197 to C code. "nuron" string definitions were placed in variables
3198 rather than hard-coded - allowing parameterisation of these values
3199 later on via ctrl() commands.
3200 - Removed unused "#if 0"'d code.
3201 - Fixed engine list iteration code so it uses ENGINE_free() to release
3202 structural references.
3203 - Constified the RAND_METHOD element of ENGINE structures.
3204 - Constified various get/set functions as appropriate and added
3205 missing functions (including a catch-all ENGINE_cpy that duplicates
3206 all ENGINE values onto a new ENGINE except reference counts/state).
3207 - Removed NULL parameter checks in get/set functions. Setting a method
3208 or function to NULL is a way of cancelling out a previously set
3209 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3210 and doesn't justify the extra error symbols and code.
3211 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3212 flags from engine_int.h to engine.h.
3213 - Changed prototypes for ENGINE handler functions (init(), finish(),
3214 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3217 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3218 to the algorithm using long division. The binary algorithm can be
3219 used only if the modulus is odd. On 32-bit systems, it is faster
3220 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3221 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3222 up to 450 bits. In 64-bit environments, the binary algorithm
3223 appears to be advantageous for much longer moduli; here we use it
3224 for moduli up to 2048 bits.
3227 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3228 could not support the combine flag in choice fields.
3231 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3232 extensions from a certificate request to the certificate.
3235 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3236 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3237 file: this allows the display of the certificate about to be
3238 signed to be customised, to allow certain fields to be included
3239 or excluded and extension details. The old system didn't display
3240 multicharacter strings properly, omitted fields not in the policy
3241 and couldn't display additional details such as extensions.
3244 *) Function EC_POINTs_mul for multiple scalar multiplication
3245 of an arbitrary number of elliptic curve points
3246 \sum scalars[i]*points[i],
3247 optionally including the generator defined for the EC_GROUP:
3248 scalar*generator + \sum scalars[i]*points[i].
3250 EC_POINT_mul is a simple wrapper function for the typical case
3251 that the point list has just one item (besides the optional
3255 *) First EC_METHODs for curves over GF(p):
3257 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3258 operations and provides various method functions that can also
3259 operate with faster implementations of modular arithmetic.
3261 EC_GFp_mont_method() reuses most functions that are part of
3262 EC_GFp_simple_method, but uses Montgomery arithmetic.
3264 [Bodo Moeller; point addition and point doubling
3265 implementation directly derived from source code provided by
3266 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3268 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3269 crypto/ec/ec_lib.c):
3271 Curves are EC_GROUP objects (with an optional group generator)
3272 based on EC_METHODs that are built into the library.
3274 Points are EC_POINT objects based on EC_GROUP objects.
3276 Most of the framework would be able to handle curves over arbitrary
3277 finite fields, but as there are no obvious types for fields other
3278 than GF(p), some functions are limited to that for now.
3281 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3282 that the file contains a complete HTTP response.
3285 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3286 change the def and num file printf format specifier from "%-40sXXX"
3287 to "%-39s XXX". The latter will always guarantee a space after the
3288 field while the former will cause them to run together if the field
3289 is 40 of more characters long.
3292 *) Constify the cipher and digest 'method' functions and structures
3293 and modify related functions to take constant EVP_MD and EVP_CIPHER
3297 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3298 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3301 *) Modify EVP_Digest*() routines so they now return values. Although the
3302 internal software routines can never fail additional hardware versions
3306 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3308 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3309 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3312 ERR_R_NESTED_ASN1_ERROR
3314 ERR_R_MISSING_ASN1_EOS
3315 were 4 .. 9, conflicting with
3316 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3318 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3319 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3321 Add new error code 'ERR_R_INTERNAL_ERROR'.
3324 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3328 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3329 sets the subject name for a new request or supersedes the
3330 subject name in a given request. Formats that can be parsed are
3331 'CN=Some Name, OU=myOU, C=IT'
3333 'CN=Some Name/OU=myOU/C=IT'.
3335 Add options '-batch' and '-verbose' to 'openssl req'.
3336 [Massimiliano Pala <madwolf@hackmasters.net>]
3338 *) Introduce the possibility to access global variables through
3339 functions on platform were that's the best way to handle exporting
3340 global variables in shared libraries. To enable this functionality,
3341 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3342 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3343 is normally done by Configure or something similar).
3345 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3346 in the source file (foo.c) like this:
3348 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3349 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3351 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3352 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3354 OPENSSL_DECLARE_GLOBAL(int,foo);
3355 #define foo OPENSSL_GLOBAL_REF(foo)
3356 OPENSSL_DECLARE_GLOBAL(double,bar);
3357 #define bar OPENSSL_GLOBAL_REF(bar)
3359 The #defines are very important, and therefore so is including the
3360 header file everywhere where the defined globals are used.
3362 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3363 of ASN.1 items, but that structure is a bit different.
3365 The largest change is in util/mkdef.pl which has been enhanced with
3366 better and easier to understand logic to choose which symbols should
3367 go into the Windows .def files as well as a number of fixes and code
3368 cleanup (among others, algorithm keywords are now sorted
3369 lexicographically to avoid constant rewrites).
3372 *) In BN_div() keep a copy of the sign of 'num' before writing the
3373 result to 'rm' because if rm==num the value will be overwritten
3374 and produce the wrong result if 'num' is negative: this caused
3375 problems with BN_mod() and BN_nnmod().
3378 *) Function OCSP_request_verify(). This checks the signature on an
3379 OCSP request and verifies the signer certificate. The signer
3380 certificate is just checked for a generic purpose and OCSP request
3384 *) Add OCSP_check_validity() function to check the validity of OCSP
3385 responses. OCSP responses are prepared in real time and may only
3386 be a few seconds old. Simply checking that the current time lies
3387 between thisUpdate and nextUpdate max reject otherwise valid responses
3388 caused by either OCSP responder or client clock inaccuracy. Instead
3389 we allow thisUpdate and nextUpdate to fall within a certain period of
3390 the current time. The age of the response can also optionally be
3391 checked. Two new options -validity_period and -status_age added to
3395 *) If signature or public key algorithm is unrecognized print out its
3396 OID rather that just UNKNOWN.
3399 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3400 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3401 ID to be generated from the issuer certificate alone which can then be
3402 passed to OCSP_id_issuer_cmp().
3405 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3406 ASN1 modules to export functions returning ASN1_ITEM pointers
3407 instead of the ASN1_ITEM structures themselves. This adds several
3408 new macros which allow the underlying ASN1 function/structure to
3409 be accessed transparently. As a result code should not use ASN1_ITEM
3410 references directly (such as &X509_it) but instead use the relevant
3411 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3412 use of the new ASN1 code on platforms where exporting structures
3413 is problematical (for example in shared libraries) but exporting
3414 functions returning pointers to structures is not.
3417 *) Add support for overriding the generation of SSL/TLS session IDs.
3418 These callbacks can be registered either in an SSL_CTX or per SSL.
3419 The purpose of this is to allow applications to control, if they wish,
3420 the arbitrary values chosen for use as session IDs, particularly as it
3421 can be useful for session caching in multiple-server environments. A
3422 command-line switch for testing this (and any client code that wishes
3423 to use such a feature) has been added to "s_server".
3424 [Geoff Thorpe, Lutz Jaenicke]
3426 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3427 of the form '#if defined(...) || defined(...) || ...' and
3428 '#if !defined(...) && !defined(...) && ...'. This also avoids
3429 the growing number of special cases it was previously handling.
3432 *) Make all configuration macros available for application by making
3433 sure they are available in opensslconf.h, by giving them names starting
3434 with "OPENSSL_" to avoid conflicts with other packages and by making
3435 sure e_os2.h will cover all platform-specific cases together with
3437 Additionally, it is now possible to define configuration/platform-
3438 specific names (called "system identities"). In the C code, these
3439 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3440 macro with the name beginning with "OPENSSL_SYS_", which is determined
3441 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3445 *) New option -set_serial to 'req' and 'x509' this allows the serial
3446 number to use to be specified on the command line. Previously self
3447 signed certificates were hard coded with serial number 0 and the
3448 CA options of 'x509' had to use a serial number in a file which was
3452 *) New options to 'ca' utility to support V2 CRL entry extensions.
3453 Currently CRL reason, invalidity date and hold instruction are
3454 supported. Add new CRL extensions to V3 code and some new objects.
3457 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3458 disable standard block padding (aka PKCS#5 padding) in the EVP
3459 API, which was previously mandatory. This means that the data is
3460 not padded in any way and so the total length much be a multiple
3461 of the block size, otherwise an error occurs.
3464 *) Initial (incomplete) OCSP SSL support.
3467 *) New function OCSP_parse_url(). This splits up a URL into its host,
3468 port and path components: primarily to parse OCSP URLs. New -url
3469 option to ocsp utility.
3472 *) New nonce behavior. The return value of OCSP_check_nonce() now
3473 reflects the various checks performed. Applications can decide
3474 whether to tolerate certain situations such as an absent nonce
3475 in a response when one was present in a request: the ocsp application
3476 just prints out a warning. New function OCSP_add1_basic_nonce()
3477 this is to allow responders to include a nonce in a response even if
3478 the request is nonce-less.
3481 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3482 skipped when using openssl x509 multiple times on a single input file,
3483 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3486 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3487 set string type: to handle setting ASN1_TIME structures. Fix ca
3488 utility to correctly initialize revocation date of CRLs.
3491 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3492 the clients preferred ciphersuites and rather use its own preferences.
3493 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3494 Internet Explorer by ensuring unchanged hash method during stepup.
3495 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3498 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3499 to aes and add a new 'exist' option to print out symbols that don't
3503 *) Additional options to ocsp utility to allow flags to be set and
3504 additional certificates supplied.
3507 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3508 OCSP client a number of certificate to only verify the response
3512 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3513 handle the new API. Currently only ECB, CBC modes supported. Add new
3516 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3517 Encryption Standard (AES) Ciphersuites for Transport Layer
3518 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3519 not enabled by default and were not part of the "ALL" ciphersuite
3520 alias because they were not yet official; they could be
3521 explicitly requested by specifying the "AESdraft" ciphersuite
3522 group alias. In the final release of OpenSSL 0.9.7, the group
3523 alias is called "AES" and is part of "ALL".)
3524 [Ben Laurie, Steve Henson, Bodo Moeller]
3526 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3527 request to response.
3530 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3531 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3532 extract information from a certificate request. OCSP_response_create()
3533 creates a response and optionally adds a basic response structure.
3534 OCSP_basic_add1_status() adds a complete single response to a basic
3535 response and returns the OCSP_SINGLERESP structure just added (to allow
3536 extensions to be included for example). OCSP_basic_add1_cert() adds a
3537 certificate to a basic response and OCSP_basic_sign() signs a basic
3538 response with various flags. New helper functions ASN1_TIME_check()
3539 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3540 (converts ASN1_TIME to GeneralizedTime).
3543 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3544 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3545 structure from a certificate. X509_pubkey_digest() digests the public_key
3546 contents: this is used in various key identifiers.
3549 *) Make sk_sort() tolerate a NULL argument.
3550 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3552 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3553 passed by the function are trusted implicitly. If any of them signed the
3554 response then it is assumed to be valid and is not verified.
3557 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3558 to data. This was previously part of the PKCS7 ASN1 code. This
3559 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3560 [Steve Henson, reported by Kenneth R. Robinette
3561 <support@securenetterm.com>]
3563 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3564 routines: without these tracing memory leaks is very painful.
3565 Fix leaks in PKCS12 and PKCS7 routines.
3568 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3569 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3570 effectively meant GeneralizedTime would never be used. Now it
3571 is initialised to -1 but X509_time_adj() now has to check the value
3572 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3573 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3574 [Steve Henson, reported by Kenneth R. Robinette
3575 <support@securenetterm.com>]
3577 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3578 result in a zero length in the ASN1_INTEGER structure which was
3579 not consistent with the structure when d2i_ASN1_INTEGER() was used
3580 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3581 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3582 where it did not print out a minus for negative ASN1_INTEGER.
3585 *) Add summary printout to ocsp utility. The various functions which
3586 convert status values to strings have been renamed to:
3587 OCSP_response_status_str(), OCSP_cert_status_str() and
3588 OCSP_crl_reason_str() and are no longer static. New options
3589 to verify nonce values and to disable verification. OCSP response
3590 printout format cleaned up.
3593 *) Add additional OCSP certificate checks. These are those specified
3594 in RFC2560. This consists of two separate checks: the CA of the
3595 certificate being checked must either be the OCSP signer certificate
3596 or the issuer of the OCSP signer certificate. In the latter case the
3597 OCSP signer certificate must contain the OCSP signing extended key
3598 usage. This check is performed by attempting to match the OCSP
3599 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3600 in the OCSP_CERTID structures of the response.
3603 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3604 and related routines. This uses the standard OpenSSL certificate
3605 verify routines to perform initial checks (just CA validity) and
3606 to obtain the certificate chain. Then additional checks will be
3607 performed on the chain. Currently the root CA is checked to see
3608 if it is explicitly trusted for OCSP signing. This is used to set
3609 a root CA as a global signing root: that is any certificate that
3610 chains to that CA is an acceptable OCSP signing certificate.
3613 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3614 extensions from a separate configuration file.
3615 As when reading extensions from the main configuration file,
3616 the '-extensions ...' option may be used for specifying the
3618 [Massimiliano Pala <madwolf@comune.modena.it>]
3620 *) New OCSP utility. Allows OCSP requests to be generated or
3621 read. The request can be sent to a responder and the output
3622 parsed, outputed or printed in text form. Not complete yet:
3623 still needs to check the OCSP response validity.
3626 *) New subcommands for 'openssl ca':
3627 'openssl ca -status <serial>' prints the status of the cert with
3628 the given serial number (according to the index file).
3629 'openssl ca -updatedb' updates the expiry status of certificates
3631 [Massimiliano Pala <madwolf@comune.modena.it>]
3633 *) New '-newreq-nodes' command option to CA.pl. This is like
3634 '-newreq', but calls 'openssl req' with the '-nodes' option
3635 so that the resulting key is not encrypted.
3636 [Damien Miller <djm@mindrot.org>]
3638 *) New configuration for the GNU Hurd.
3639 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3641 *) Initial code to implement OCSP basic response verify. This
3642 is currently incomplete. Currently just finds the signer's
3643 certificate and verifies the signature on the response.
3646 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3647 value of OPENSSLDIR. This is available via the new '-d' option
3648 to 'openssl version', and is also included in 'openssl version -a'.
3651 *) Allowing defining memory allocation callbacks that will be given
3652 file name and line number information in additional arguments
3653 (a const char* and an int). The basic functionality remains, as
3654 well as the original possibility to just replace malloc(),
3655 realloc() and free() by functions that do not know about these
3656 additional arguments. To register and find out the current
3657 settings for extended allocation functions, the following
3658 functions are provided:
3660 CRYPTO_set_mem_ex_functions
3661 CRYPTO_set_locked_mem_ex_functions
3662 CRYPTO_get_mem_ex_functions
3663 CRYPTO_get_locked_mem_ex_functions
3665 These work the same way as CRYPTO_set_mem_functions and friends.
3666 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3667 extended allocation function is enabled.
3668 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3669 a conventional allocation function is enabled.
3670 [Richard Levitte, Bodo Moeller]
3672 *) Finish off removing the remaining LHASH function pointer casts.
3673 There should no longer be any prototype-casting required when using
3674 the LHASH abstraction, and any casts that remain are "bugs". See
3675 the callback types and macros at the head of lhash.h for details
3676 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3679 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3680 If /dev/[u]random devices are not available or do not return enough
3681 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3683 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3684 /etc/entropy will be queried once each in this sequence, quering stops
3685 when enough entropy was collected without querying more sockets.
3688 *) Change the Unix RAND_poll() variant to be able to poll several
3689 random devices, as specified by DEVRANDOM, until a sufficient amount
3690 of data has been collected. We spend at most 10 ms on each file
3691 (select timeout) and read in non-blocking mode. DEVRANDOM now
3692 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3693 (previously it was just the string "/dev/urandom"), so on typical
3694 platforms the 10 ms delay will never occur.
3695 Also separate out the Unix variant to its own file, rand_unix.c.
3696 For VMS, there's a currently-empty rand_vms.c.
3699 *) Move OCSP client related routines to ocsp_cl.c. These
3700 provide utility functions which an application needing
3701 to issue a request to an OCSP responder and analyse the
3702 response will typically need: as opposed to those which an
3703 OCSP responder itself would need which will be added later.
3705 OCSP_request_sign() signs an OCSP request with an API similar
3706 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3707 response. OCSP_response_get1_basic() extracts basic response
3708 from response. OCSP_resp_find_status(): finds and extracts status
3709 information from an OCSP_CERTID structure (which will be created
3710 when the request structure is built). These are built from lower
3711 level functions which work on OCSP_SINGLERESP structures but
3712 wont normally be used unless the application wishes to examine
3713 extensions in the OCSP response for example.
3715 Replace nonce routines with a pair of functions.
3716 OCSP_request_add1_nonce() adds a nonce value and optionally
3717 generates a random value. OCSP_check_nonce() checks the
3718 validity of the nonce in an OCSP response.
3721 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3722 This doesn't copy the supplied OCSP_CERTID and avoids the
3723 need to free up the newly created id. Change return type
3724 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3725 This can then be used to add extensions to the request.
3726 Deleted OCSP_request_new(), since most of its functionality
3727 is now in OCSP_REQUEST_new() (and the case insensitive name
3728 clash) apart from the ability to set the request name which
3729 will be added elsewhere.
3732 *) Update OCSP API. Remove obsolete extensions argument from
3733 various functions. Extensions are now handled using the new
3734 OCSP extension code. New simple OCSP HTTP function which
3735 can be used to send requests and parse the response.
3738 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3739 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3740 uses the special reorder version of SET OF to sort the attributes
3741 and reorder them to match the encoded order. This resolves a long
3742 standing problem: a verify on a PKCS7 structure just after signing
3743 it used to fail because the attribute order did not match the
3744 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3745 it uses the received order. This is necessary to tolerate some broken
3746 software that does not order SET OF. This is handled by encoding
3747 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3748 to produce the required SET OF.
3751 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3752 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3753 files to get correct declarations of the ASN.1 item variables.
3756 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3757 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3758 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3759 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3760 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3761 ASN1_ITEM and no wrapper functions.
3764 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3765 replace the old function pointer based I/O routines. Change most of
3766 the *_d2i_bio() and *_d2i_fp() functions to use these.
3769 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3770 lines, recognice more "algorithms" that can be deselected, and make
3771 it complain about algorithm deselection that isn't recognised.
3774 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3775 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3776 to use new functions. Add NO_ASN1_OLD which can be set to remove
3777 some old style ASN1 functions: this can be used to determine if old
3778 code will still work when these eventually go away.
3781 *) New extension functions for OCSP structures, these follow the
3782 same conventions as certificates and CRLs.
3785 *) New function X509V3_add1_i2d(). This automatically encodes and
3786 adds an extension. Its behaviour can be customised with various
3787 flags to append, replace or delete. Various wrappers added for
3788 certifcates and CRLs.
3791 *) Fix to avoid calling the underlying ASN1 print routine when
3792 an extension cannot be parsed. Correct a typo in the
3793 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3796 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3797 entries for variables.
3800 *) Add functionality to apps/openssl.c for detecting locking
3801 problems: As the program is single-threaded, all we have
3802 to do is register a locking callback using an array for
3803 storing which locks are currently held by the program.
3806 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3807 SSL_get_ex_data_X509_STORE_idx(), which is used in
3808 ssl_verify_cert_chain() and thus can be called at any time
3809 during TLS/SSL handshakes so that thread-safety is essential.
3810 Unfortunately, the ex_data design is not at all suited
3811 for multi-threaded use, so it probably should be abolished.
3814 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3815 [Broadcom, tweaked and integrated by Geoff Thorpe]
3817 *) Move common extension printing code to new function
3818 X509V3_print_extensions(). Reorganise OCSP print routines and
3819 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3822 *) New function X509_signature_print() to remove duplication in some
3826 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3827 set (this was treated exactly the same as SET OF previously). This
3828 is used to reorder the STACK representing the structure to match the
3829 encoding. This will be used to get round a problem where a PKCS7
3830 structure which was signed could not be verified because the STACK
3831 order did not reflect the encoded order.
3834 *) Reimplement the OCSP ASN1 module using the new code.
3837 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3838 for its ASN1 operations. The old style function pointers still exist
3839 for now but they will eventually go away.
3842 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3843 completely replaces the old ASN1 functionality with a table driven
3844 encoder and decoder which interprets an ASN1_ITEM structure describing
3845 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3846 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3847 has also been converted to the new form.
3850 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3851 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3852 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3853 for negative moduli.
3856 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3857 of not touching the result's sign bit.
3860 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3864 *) Changed the LHASH code to use prototypes for callbacks, and created
3865 macros to declare and implement thin (optionally static) functions
3866 that provide type-safety and avoid function pointer casting for the
3867 type-specific callbacks.
3870 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3872 [Veers Staats <staatsvr@asc.hpc.mil>,
3873 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3875 *) Reformat the FAQ so the different questions and answers can be divided
3876 in sections depending on the subject.
3879 *) Have the zlib compression code load ZLIB.DLL dynamically under
3883 *) New function BN_mod_sqrt for computing square roots modulo a prime
3884 (using the probabilistic Tonelli-Shanks algorithm unless
3885 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3886 be handled deterministically).
3887 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3889 *) Make BN_mod_inverse faster by explicitly handling small quotients
3890 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3891 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3894 *) New function BN_kronecker.
3897 *) Fix BN_gcd so that it works on negative inputs; the result is
3898 positive unless both parameters are zero.
3899 Previously something reasonably close to an infinite loop was
3900 possible because numbers could be growing instead of shrinking
3901 in the implementation of Euclid's algorithm.
3904 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3905 sign of the number in question.
3907 Fix BN_is_word(a,w) to work correctly for w == 0.
3909 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3910 because its test if the absolute value of 'a' equals 'w'.
3911 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3912 it exists mostly for use in the implementations of BN_is_zero(),
3913 BN_is_one(), and BN_is_word().
3916 *) New function BN_swap.
3919 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3920 the exponentiation functions are more likely to produce reasonable
3921 results on negative inputs.
3924 *) Change BN_mod_mul so that the result is always non-negative.
3925 Previously, it could be negative if one of the factors was negative;
3926 I don't think anyone really wanted that behaviour.
3929 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3930 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3931 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3932 and add new functions:
3941 BN_mod_lshift1_quick
3945 These functions always generate non-negative results.
3947 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3948 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3950 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3951 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3952 be reduced modulo m.
3953 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3956 The following entry accidentily appeared in the CHANGES file
3957 distributed with OpenSSL 0.9.7. The modifications described in
3958 it do *not* apply to OpenSSL 0.9.7.
3960 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3961 was actually never needed) and in BN_mul(). The removal in BN_mul()
3962 required a small change in bn_mul_part_recursive() and the addition
3963 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3964 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3965 bn_sub_words() and bn_add_words() except they take arrays with
3970 *) In 'openssl passwd', verify passwords read from the terminal
3971 unless the '-salt' option is used (which usually means that
3972 verification would just waste user's time since the resulting
3973 hash is going to be compared with some given password hash)
3974 or the new '-noverify' option is used.
3976 This is an incompatible change, but it does not affect
3977 non-interactive use of 'openssl passwd' (passwords on the command
3978 line, '-stdin' option, '-in ...' option) and thus should not
3982 *) Remove all references to RSAref, since there's no more need for it.
3985 *) Make DSO load along a path given through an environment variable
3986 (SHLIB_PATH) with shl_load().
3989 *) Constify the ENGINE code as a result of BIGNUM constification.
3990 Also constify the RSA code and most things related to it. In a
3991 few places, most notable in the depth of the ASN.1 code, ugly
3992 casts back to non-const were required (to be solved at a later
3996 *) Make it so the openssl application has all engines loaded by default.
3999 *) Constify the BIGNUM routines a little more.
4002 *) Add the following functions:
4004 ENGINE_load_cswift()
4006 ENGINE_load_atalla()
4008 ENGINE_load_builtin_engines()
4010 That way, an application can itself choose if external engines that
4011 are built-in in OpenSSL shall ever be used or not. The benefit is
4012 that applications won't have to be linked with libdl or other dso
4013 libraries unless it's really needed.
4015 Changed 'openssl engine' to load all engines on demand.
4016 Changed the engine header files to avoid the duplication of some
4017 declarations (they differed!).
4020 *) 'openssl engine' can now list capabilities.
4023 *) Better error reporting in 'openssl engine'.
4026 *) Never call load_dh_param(NULL) in s_server.
4029 *) Add engine application. It can currently list engines by name and
4030 identity, and test if they are actually available.
4033 *) Improve RPM specification file by forcing symbolic linking and making
4034 sure the installed documentation is also owned by root.root.
4035 [Damien Miller <djm@mindrot.org>]
4037 *) Give the OpenSSL applications more possibilities to make use of
4038 keys (public as well as private) handled by engines.
4041 *) Add OCSP code that comes from CertCo.
4044 *) Add VMS support for the Rijndael code.
4047 *) Added untested support for Nuron crypto accelerator.
4050 *) Add support for external cryptographic devices. This code was
4051 previously distributed separately as the "engine" branch.
4052 [Geoff Thorpe, Richard Levitte]
4054 *) Rework the filename-translation in the DSO code. It is now possible to
4055 have far greater control over how a "name" is turned into a filename
4056 depending on the operating environment and any oddities about the
4057 different shared library filenames on each system.
4060 *) Support threads on FreeBSD-elf in Configure.
4063 *) Fix for SHA1 assembly problem with MASM: it produces
4064 warnings about corrupt line number information when assembling
4065 with debugging information. This is caused by the overlapping
4067 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4070 NCONF_get_number() has no error checking at all. As a replacement,
4071 NCONF_get_number_e() is defined (_e for "error checking") and is
4072 promoted strongly. The old NCONF_get_number is kept around for
4073 binary backward compatibility.
4074 Make it possible for methods to load from something other than a BIO,
4075 by providing a function pointer that is given a name instead of a BIO.
4076 For example, this could be used to load configuration data from an
4080 *) Fix for non blocking accept BIOs. Added new I/O special reason
4081 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4082 with non blocking I/O was not possible because no retry code was
4083 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4087 *) Added the beginnings of Rijndael support.
4090 *) Fix for bug in DirectoryString mask setting. Add support for
4091 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4092 to allow certificate printing to more controllable, additional
4093 'certopt' option to 'x509' to allow new printing options to be
4097 *) Clean old EAY MD5 hack from e_os.h.
4100 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4102 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4103 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4104 [Joe Orton, Steve Henson]
4106 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4108 *) Fix additional bug revealed by the NISCC test suite:
4110 Stop bug triggering large recursion when presented with
4111 certain ASN.1 tags (CVE-2003-0851)
4114 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4116 *) Fix various bugs revealed by running the NISCC test suite:
4118 Stop out of bounds reads in the ASN1 code when presented with
4119 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4121 If verify callback ignores invalid public key errors don't try to check
4122 certificate signature with the NULL public key.
4126 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4127 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4131 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4132 extra data after the compression methods not only for TLS 1.0
4133 but also for SSL 3.0 (as required by the specification).
4134 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4136 *) Change X509_certificate_type() to mark the key as exported/exportable
4137 when it's 512 *bits* long, not 512 bytes.
4140 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4142 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4143 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4144 a protocol version number mismatch like a decryption error
4145 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4148 *) Turn on RSA blinding by default in the default implementation
4149 to avoid a timing attack. Applications that don't want it can call
4150 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4151 They would be ill-advised to do so in most cases.
4152 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4154 *) Change RSA blinding code so that it works when the PRNG is not
4155 seeded (in this case, the secret RSA exponent is abused as
4156 an unpredictable seed -- if it is not unpredictable, there
4157 is no point in blinding anyway). Make RSA blinding thread-safe
4158 by remembering the creator's thread ID in rsa->blinding and
4159 having all other threads use local one-time blinding factors
4160 (this requires more computation than sharing rsa->blinding, but
4161 avoids excessive locking; and if an RSA object is not shared
4162 between threads, blinding will still be very fast).
4165 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4167 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4168 via timing by performing a MAC computation even if incorrrect
4169 block cipher padding has been found. This is a countermeasure
4170 against active attacks where the attacker has to distinguish
4171 between bad padding and a MAC verification error. (CVE-2003-0078)
4173 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4174 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4175 Martin Vuagnoux (EPFL, Ilion)]
4177 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4179 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4180 memory from it's contents. This is done with a counter that will
4181 place alternating values in each byte. This can be used to solve
4182 two issues: 1) the removal of calls to memset() by highly optimizing
4183 compilers, and 2) cleansing with other values than 0, since those can
4184 be read through on certain media, for example a swap space on disk.
4187 *) Bugfix: client side session caching did not work with external caching,
4188 because the session->cipher setting was not restored when reloading
4189 from the external cache. This problem was masked, when
4190 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4191 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4194 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4195 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4196 [Zeev Lieber <zeev-l@yahoo.com>]
4198 *) Undo an undocumented change introduced in 0.9.6e which caused
4199 repeated calls to OpenSSL_add_all_ciphers() and
4200 OpenSSL_add_all_digests() to be ignored, even after calling
4204 *) Change the default configuration reader to deal with last line not
4205 being properly terminated.
4208 *) Change X509_NAME_cmp() so it applies the special rules on handling
4209 DN values that are of type PrintableString, as well as RDNs of type
4210 emailAddress where the value has the type ia5String.
4211 [stefank@valicert.com via Richard Levitte]
4213 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4214 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4215 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4216 the bitwise-OR of the two for use by the majority of applications
4217 wanting this behaviour, and update the docs. The documented
4218 behaviour and actual behaviour were inconsistent and had been
4219 changing anyway, so this is more a bug-fix than a behavioural
4221 [Geoff Thorpe, diagnosed by Nadav Har'El]
4223 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4224 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4227 *) Fix initialization code race conditions in
4228 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4229 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4230 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4231 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4232 ssl2_get_cipher_by_char(),
4233 ssl3_get_cipher_by_char().
4234 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4236 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4237 the cached sessions are flushed, as the remove_cb() might use ex_data
4238 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4239 (see [openssl.org #212]).
4240 [Geoff Thorpe, Lutz Jaenicke]
4242 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4243 length, instead of the encoding length to d2i_ASN1_OBJECT.
4246 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4248 *) [In 0.9.6g-engine release:]
4249 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4250 [Lynn Gazis <lgazis@rainbow.com>]
4252 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4254 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4255 and get fix the header length calculation.
4256 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4257 Alon Kantor <alonk@checkpoint.com> (and others),
4260 *) Use proper error handling instead of 'assertions' in buffer
4261 overflow checks added in 0.9.6e. This prevents DoS (the
4262 assertions could call abort()).
4263 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4265 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4267 *) Add various sanity checks to asn1_get_length() to reject
4268 the ASN1 length bytes if they exceed sizeof(long), will appear
4269 negative or the content length exceeds the length of the
4271 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4273 *) Fix cipher selection routines: ciphers without encryption had no flags
4274 for the cipher strength set and where therefore not handled correctly
4275 by the selection routines (PR #130).
4278 *) Fix EVP_dsa_sha macro.
4282 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4283 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4284 that was added in OpenSSL 0.9.6d.
4286 As the countermeasure turned out to be incompatible with some
4287 broken SSL implementations, the new option is part of SSL_OP_ALL.
4288 SSL_OP_ALL is usually employed when compatibility with weird SSL
4289 implementations is desired (e.g. '-bugs' option to 's_client' and
4290 's_server'), so the new option is automatically set in many
4294 *) Changes in security patch:
4296 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4297 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4298 Air Force Materiel Command, USAF, under agreement number
4301 *) Add various sanity checks to asn1_get_length() to reject
4302 the ASN1 length bytes if they exceed sizeof(long), will appear
4303 negative or the content length exceeds the length of the
4304 supplied buffer. (CVE-2002-0659)
4305 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4307 *) Assertions for various potential buffer overflows, not known to
4309 [Ben Laurie (CHATS)]
4311 *) Various temporary buffers to hold ASCII versions of integers were
4312 too small for 64 bit platforms. (CVE-2002-0655)
4313 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4315 *) Remote buffer overflow in SSL3 protocol - an attacker could
4316 supply an oversized session ID to a client. (CVE-2002-0656)
4317 [Ben Laurie (CHATS)]
4319 *) Remote buffer overflow in SSL2 protocol - an attacker could
4320 supply an oversized client master key. (CVE-2002-0656)
4321 [Ben Laurie (CHATS)]
4323 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4325 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4326 encoded as NULL) with id-dsa-with-sha1.
4327 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4329 *) Check various X509_...() return values in apps/req.c.
4330 [Nils Larsch <nla@trustcenter.de>]
4332 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4333 an end-of-file condition would erronously be flagged, when the CRLF
4334 was just at the end of a processed block. The bug was discovered when
4335 processing data through a buffering memory BIO handing the data to a
4336 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4337 <ptsekov@syntrex.com> and Nedelcho Stanev.
4340 *) Implement a countermeasure against a vulnerability recently found
4341 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4342 before application data chunks to avoid the use of known IVs
4343 with data potentially chosen by the attacker.
4346 *) Fix length checks in ssl3_get_client_hello().
4349 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4350 to prevent ssl3_read_internal() from incorrectly assuming that
4351 ssl3_read_bytes() found application data while handshake
4352 processing was enabled when in fact s->s3->in_read_app_data was
4353 merely automatically cleared during the initial handshake.
4354 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4356 *) Fix object definitions for Private and Enterprise: they were not
4357 recognized in their shortname (=lowercase) representation. Extend
4358 obj_dat.pl to issue an error when using undefined keywords instead
4359 of silently ignoring the problem (Svenning Sorensen
4360 <sss@sss.dnsalias.net>).
4363 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4364 generators, i.e. generators other than 2 and 5. (Previously, the
4365 code did not properly initialise the 'add' and 'rem' values to
4366 BN_generate_prime().)
4368 In the new general case, we do not insist that 'generator' is
4369 actually a primitive root: This requirement is rather pointless;
4370 a generator of the order-q subgroup is just as good, if not
4374 *) Map new X509 verification errors to alerts. Discovered and submitted by
4375 Tom Wu <tom@arcot.com>.
4378 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4379 returning non-zero before the data has been completely received
4380 when using non-blocking I/O.
4381 [Bodo Moeller; problem pointed out by John Hughes]
4383 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4384 [Ben Laurie, Lutz Jaenicke]
4386 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4387 Yoram Zahavi <YoramZ@gilian.com>).
4390 *) Add information about CygWin 1.3 and on, and preserve proper
4391 configuration for the versions before that.
4392 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4394 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4395 check whether we deal with a copy of a session and do not delete from
4396 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4397 <izhar@checkpoint.com>.
4400 *) Do not store session data into the internal session cache, if it
4401 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4402 flag is set). Proposed by Aslam <aslam@funk.com>.
4405 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4409 *) [In 0.9.6d-engine release:]
4410 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4411 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4413 *) Add the configuration target linux-s390x.
4414 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4416 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4417 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4418 variable as an indication that a ClientHello message has been
4419 received. As the flag value will be lost between multiple
4420 invocations of ssl3_accept when using non-blocking I/O, the
4421 function may not be aware that a handshake has actually taken
4422 place, thus preventing a new session from being added to the
4425 To avoid this problem, we now set s->new_session to 2 instead of
4426 using a local variable.
4427 [Lutz Jaenicke, Bodo Moeller]
4429 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4430 if the SSL_R_LENGTH_MISMATCH error is detected.
4431 [Geoff Thorpe, Bodo Moeller]
4433 *) New 'shared_ldflag' column in Configure platform table.
4436 *) Fix EVP_CIPHER_mode macro.
4437 ["Dan S. Camper" <dan@bti.net>]
4439 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4440 type, we must throw them away by setting rr->length to 0.
4441 [D P Chang <dpc@qualys.com>]
4443 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4445 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4446 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4447 worked incorrectly for those cases where range = 10..._2 and
4448 3*range is two bits longer than range.)
4451 *) Only add signing time to PKCS7 structures if it is not already
4455 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4456 OBJ_ld_ce should be OBJ_id_ce.
4457 Also some ip-pda OIDs in crypto/objects/objects.txt were
4458 incorrect (cf. RFC 3039).
4459 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4461 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4462 returns early because it has nothing to do.
4463 [Andy Schneider <andy.schneider@bjss.co.uk>]
4465 *) [In 0.9.6c-engine release:]
4466 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4467 [Andy Schneider <andy.schneider@bjss.co.uk>]
4469 *) [In 0.9.6c-engine release:]
4470 Add support for Cryptographic Appliance's keyserver technology.
4471 (Use engine 'keyclient')
4472 [Cryptographic Appliances and Geoff Thorpe]
4474 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4475 is called via tools/c89.sh because arguments have to be
4476 rearranged (all '-L' options must appear before the first object
4478 [Richard Shapiro <rshapiro@abinitio.com>]
4480 *) [In 0.9.6c-engine release:]
4481 Add support for Broadcom crypto accelerator cards, backported
4483 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4485 *) [In 0.9.6c-engine release:]
4486 Add support for SureWare crypto accelerator cards from
4487 Baltimore Technologies. (Use engine 'sureware')
4488 [Baltimore Technologies and Mark Cox]
4490 *) [In 0.9.6c-engine release:]
4491 Add support for crypto accelerator cards from Accelerated
4492 Encryption Processing, www.aep.ie. (Use engine 'aep')
4493 [AEP Inc. and Mark Cox]
4495 *) Add a configuration entry for gcc on UnixWare.
4496 [Gary Benson <gbenson@redhat.com>]
4498 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4499 messages are stored in a single piece (fixed-length part and
4500 variable-length part combined) and fix various bugs found on the way.
4503 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4504 instead. BIO_gethostbyname() does not know what timeouts are
4505 appropriate, so entries would stay in cache even when they have
4507 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4509 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4510 faced with a pathologically small ClientHello fragment that does
4511 not contain client_version: Instead of aborting with an error,
4512 simply choose the highest available protocol version (i.e.,
4513 TLS 1.0 unless it is disabled). In practice, ClientHello
4514 messages are never sent like this, but this change gives us
4515 strictly correct behaviour at least for TLS.
4518 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4519 never resets s->method to s->ctx->method when called from within
4520 one of the SSL handshake functions.
4521 [Bodo Moeller; problem pointed out by Niko Baric]
4523 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4524 (sent using the client's version number) if client_version is
4525 smaller than the protocol version in use. Also change
4526 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4527 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4528 the client will at least see that alert.
4531 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4535 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4536 client receives HelloRequest while in a handshake.
4537 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4539 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4540 should end in 'break', not 'goto end' which circuments various
4541 cleanups done in state SSL_ST_OK. But session related stuff
4542 must be disabled for SSL_ST_OK in the case that we just sent a
4545 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4546 before just sending a HelloRequest.
4547 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4549 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4550 reveal whether illegal block cipher padding was found or a MAC
4551 verification error occured. (Neither SSLerr() codes nor alerts
4552 are directly visible to potential attackers, but the information
4553 may leak via logfiles.)
4555 Similar changes are not required for the SSL 2.0 implementation
4556 because the number of padding bytes is sent in clear for SSL 2.0,
4557 and the extra bytes are just ignored. However ssl/s2_pkt.c
4558 failed to verify that the purported number of padding bytes is in
4562 *) Add OpenUNIX-8 support including shared libraries
4563 (Boyd Lynn Gerber <gerberb@zenez.com>).
4566 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4567 'wristwatch attack' using huge encoding parameters (cf.
4568 James H. Manger's CRYPTO 2001 paper). Note that the
4569 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4570 encoding parameters and hence was not vulnerable.
4573 *) BN_sqr() bug fix.
4574 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4576 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4577 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4578 followed by modular reduction.
4579 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4581 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4582 equivalent based on BN_pseudo_rand() instead of BN_rand().
4585 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4586 This function was broken, as the check for a new client hello message
4587 to handle SGC did not allow these large messages.
4588 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4591 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4594 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4595 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4598 *) Rework the configuration and shared library support for Tru64 Unix.
4599 The configuration part makes use of modern compiler features and
4600 still retains old compiler behavior for those that run older versions
4601 of the OS. The shared library support part includes a variant that
4602 uses the RPATH feature, and is available through the special
4603 configuration target "alpha-cc-rpath", which will never be selected
4605 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4607 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4608 with the same message size as in ssl3_get_certificate_request().
4609 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4610 messages might inadvertently be reject as too long.
4611 [Petr Lampa <lampa@fee.vutbr.cz>]
4613 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4616 *) Modified SSL library such that the verify_callback that has been set
4617 specificly for an SSL object with SSL_set_verify() is actually being
4618 used. Before the change, a verify_callback set with this function was
4619 ignored and the verify_callback() set in the SSL_CTX at the time of
4620 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4621 to allow the necessary settings.
4624 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4625 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4626 done automatically (in contradiction to the requirements of the C
4627 standard). This made problems when used from OpenSSH.
4630 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4631 dh->length and always used
4633 BN_rand_range(priv_key, dh->p).
4635 BN_rand_range() is not necessary for Diffie-Hellman, and this
4636 specific range makes Diffie-Hellman unnecessarily inefficient if
4637 dh->length (recommended exponent length) is much smaller than the
4638 length of dh->p. We could use BN_rand_range() if the order of
4639 the subgroup was stored in the DH structure, but we only have
4644 BN_rand(priv_key, l, ...)
4646 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4652 RSA_eay_public_encrypt
4653 RSA_eay_private_decrypt
4654 RSA_eay_private_encrypt (signing)
4655 RSA_eay_public_decrypt (signature verification)
4657 (default implementations for RSA_public_encrypt,
4658 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4659 always reject numbers >= n.
4662 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4663 to synchronize access to 'locking_thread'. This is necessary on
4664 systems where access to 'locking_thread' (an 'unsigned long'
4665 variable) is not atomic.
4668 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4669 *before* setting the 'crypto_lock_rand' flag. The previous code had
4670 a race condition if 0 is a valid thread ID.
4671 [Travis Vitek <vitek@roguewave.com>]
4673 *) Add support for shared libraries under Irix.
4674 [Albert Chin-A-Young <china@thewrittenword.com>]
4676 *) Add configuration option to build on Linux on both big-endian and
4678 [Ralf Baechle <ralf@uni-koblenz.de>]
4680 *) Add the possibility to create shared libraries on HP-UX.
4683 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4685 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4686 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4687 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4688 PRNG state recovery was possible based on the output of
4689 one PRNG request appropriately sized to gain knowledge on
4690 'md' followed by enough consecutive 1-byte PRNG requests
4691 to traverse all of 'state'.
4693 1. When updating 'md_local' (the current thread's copy of 'md')
4694 during PRNG output generation, hash all of the previous
4695 'md_local' value, not just the half used for PRNG output.
4697 2. Make the number of bytes from 'state' included into the hash
4698 independent from the number of PRNG bytes requested.
4700 The first measure alone would be sufficient to avoid
4701 Markku-Juhani's attack. (Actually it had never occurred
4702 to me that the half of 'md_local' used for chaining was the
4703 half from which PRNG output bytes were taken -- I had always
4704 assumed that the secret half would be used.) The second
4705 measure makes sure that additional data from 'state' is never
4706 mixed into 'md_local' in small portions; this heuristically
4707 further strengthens the PRNG.
4710 *) Fix crypto/bn/asm/mips3.s.
4713 *) When only the key is given to "enc", the IV is undefined. Print out
4714 an error message in this case.
4717 *) Handle special case when X509_NAME is empty in X509 printing routines.
4720 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4721 positive and less than q.
4724 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4725 used: it isn't thread safe and the add_lock_callback should handle
4727 [Paul Rose <Paul.Rose@bridge.com>]
4729 *) Verify that incoming data obeys the block size in
4730 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4734 [Ulf Möller, Bodo Möller]
4736 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4737 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4738 when fixing the server behaviour for backwards-compatible 'client
4739 hello' messages. (Note that the attack is impractical against
4740 SSL 3.0 and TLS 1.0 anyway because length and version checking
4741 means that the probability of guessing a valid ciphertext is
4742 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4745 Before 0.9.5, the countermeasure (hide the error by generating a
4746 random 'decryption result') did not work properly because
4747 ERR_clear_error() was missing, meaning that SSL_get_error() would
4748 detect the supposedly ignored error.
4750 Both problems are now fixed.
4753 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4754 (previously it was 1024).
4757 *) Fix for compatibility mode trust settings: ignore trust settings
4758 unless some valid trust or reject settings are present.
4761 *) Fix for blowfish EVP: its a variable length cipher.
4764 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4765 parameters in DSA public key structures and return an error in the
4766 DSA routines if parameters are absent.
4769 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4770 in the current directory if neither $RANDFILE nor $HOME was set.
4771 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4772 caused some confusion to Windows users who haven't defined $HOME.
4773 Thus RAND_file_name() is changed again: e_os.h can define a
4774 DEFAULT_HOME, which will be used if $HOME is not set.
4775 For Windows, we use "C:"; on other platforms, we still require
4776 environment variables.
4778 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4779 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4780 having multiple threads call RAND_poll() concurrently.
4783 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4784 combination of a flag and a thread ID variable.
4785 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4786 flag), *other* threads can enter ssleay_add_bytes without obeying
4787 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4788 that they do not hold after the first thread unsets add_do_not_lock).
4791 *) Change bctest again: '-x' expressions are not available in all
4795 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4797 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4798 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4800 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4801 the default extension for executables, if any. Also, make the perl
4802 scripts that use symlink() to test if it really exists and use "cp"
4803 if it doesn't. All this made OpenSSL compilable and installable in
4807 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4808 If SEQUENCE is length is indefinite just set c->slen to the total
4809 amount of data available.
4810 [Steve Henson, reported by shige@FreeBSD.org]
4811 [This change does not apply to 0.9.7.]
4813 *) Change bctest to avoid here-documents inside command substitution
4814 (workaround for FreeBSD /bin/sh bug).
4815 For compatibility with Ultrix, avoid shell functions (introduced
4816 in the bctest version that searches along $PATH).
4819 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4820 with des_encrypt() defined on some operating systems, like Solaris
4824 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4825 On the Importance of Eliminating Errors in Cryptographic
4826 Computations, J. Cryptology 14 (2001) 2, 101-119,
4827 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4830 *) MIPS assembler BIGNUM division bug fix.
4833 *) Disabled incorrect Alpha assembler code.
4836 *) Fix PKCS#7 decode routines so they correctly update the length
4837 after reading an EOC for the EXPLICIT tag.
4839 [This change does not apply to 0.9.7.]
4841 *) Fix bug in PKCS#12 key generation routines. This was triggered
4842 if a 3DES key was generated with a 0 initial byte. Include
4843 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4844 (but broken) behaviour.
4847 *) Enhance bctest to search for a working bc along $PATH and print
4849 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4851 *) Fix memory leaks in err.c: free err_data string if necessary;
4852 don't write to the wrong index in ERR_set_error_data.
4855 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4859 *) Replace rdtsc with _emit statements for VC++ version 5.
4860 [Jeremy Cooper <jeremy@baymoo.org>]
4862 *) Make it possible to reuse SSLv2 sessions.
4865 *) In copy_email() check for >= 0 as a return value for
4866 X509_NAME_get_index_by_NID() since 0 is a valid index.
4867 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4869 *) Avoid coredump with unsupported or invalid public keys by checking if
4870 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4871 PKCS7_verify() fails with non detached data.
4874 *) Don't use getenv in library functions when run as setuid/setgid.
4875 New function OPENSSL_issetugid().
4878 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4879 due to incorrect handling of multi-threading:
4881 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4883 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4885 3. Count how many times MemCheck_off() has been called so that
4886 nested use can be treated correctly. This also avoids
4887 inband-signalling in the previous code (which relied on the
4888 assumption that thread ID 0 is impossible).
4891 *) Add "-rand" option also to s_client and s_server.
4894 *) Fix CPU detection on Irix 6.x.
4895 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4896 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4898 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4901 [This change does not apply to 0.9.7.]
4903 *) Use the cached encoding of an X509_NAME structure rather than
4904 copying it. This is apparently the reason for the libsafe "errors"
4905 but the code is actually correct.
4908 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4909 Bleichenbacher's DSA attack.
4910 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4911 to be set and top=0 forces the highest bit to be set; top=-1 is new
4912 and leaves the highest bit random.
4913 [Ulf Moeller, Bodo Moeller]
4915 *) In the NCONF_...-based implementations for CONF_... queries
4916 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4917 a temporary CONF structure with the data component set to NULL
4918 (which gives segmentation faults in lh_retrieve).
4919 Instead, use NULL for the CONF pointer in CONF_get_string and
4920 CONF_get_number (which may use environment variables) and directly
4921 return NULL from CONF_get_section.
4924 *) Fix potential buffer overrun for EBCDIC.
4927 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4928 keyUsage if basicConstraints absent for a CA.
4931 *) Make SMIME_write_PKCS7() write mail header values with a format that
4932 is more generally accepted (no spaces before the semicolon), since
4933 some programs can't parse those values properly otherwise. Also make
4934 sure BIO's that break lines after each write do not create invalid
4938 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4939 macros previously used would not encode an empty SEQUENCE OF
4940 and break the signature.
4942 [This change does not apply to 0.9.7.]
4944 *) Zero the premaster secret after deriving the master secret in
4948 *) Add some EVP_add_digest_alias registrations (as found in
4949 OpenSSL_add_all_digests()) to SSL_library_init()
4950 aka OpenSSL_add_ssl_algorithms(). This provides improved
4951 compatibility with peers using X.509 certificates
4952 with unconventional AlgorithmIdentifier OIDs.
4955 *) Fix for Irix with NO_ASM.
4956 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4958 *) ./config script fixes.
4959 [Ulf Moeller, Richard Levitte]
4961 *) Fix 'openssl passwd -1'.
4964 *) Change PKCS12_key_gen_asc() so it can cope with non null
4965 terminated strings whose length is passed in the passlen
4966 parameter, for example from PEM callbacks. This was done
4967 by adding an extra length parameter to asc2uni().
4968 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4970 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4971 call failed, free the DSA structure.
4974 *) Fix to uni2asc() to cope with zero length Unicode strings.
4975 These are present in some PKCS#12 files.
4978 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4979 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4980 when writing a 32767 byte record.
4981 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4983 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4984 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4986 (RSA objects have a reference count access to which is protected
4987 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4988 so they are meant to be shared between threads.)
4989 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4990 "Reddie, Steven" <Steven.Reddie@ca.com>]
4992 *) Fix a deadlock in CRYPTO_mem_leaks().
4995 *) Use better test patterns in bntest.
4998 *) rand_win.c fix for Borland C.
5001 *) BN_rshift bugfix for n == 0.
5004 *) Add a 'bctest' script that checks for some known 'bc' bugs
5005 so that 'make test' does not abort just because 'bc' is broken.
5008 *) Store verify_result within SSL_SESSION also for client side to
5009 avoid potential security hole. (Re-used sessions on the client side
5010 always resulted in verify_result==X509_V_OK, not using the original
5011 result of the server certificate verification.)
5014 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5015 SSL3_RT_APPLICATION_DATA, return 0.
5016 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5020 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5021 releases, have been re-implemented by renaming the previous
5022 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5023 and ssl3_read_internal, respectively, and adding 'peek' parameters
5024 to them. The new ssl[23]_{read,peek} functions are calls to
5025 ssl[23]_read_internal with the 'peek' flag set appropriately.
5026 A 'peek' parameter has also been added to ssl3_read_bytes, which
5027 does the actual work for ssl3_read_internal.
5030 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5031 the method-specific "init()" handler. Also clean up ex_data after
5032 calling the method-specific "finish()" handler. Previously, this was
5033 happening the other way round.
5036 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5037 The previous value, 12, was not always sufficient for BN_mod_exp().
5040 *) Make sure that shared libraries get the internal name engine with
5041 the full version number and not just 0. This should mark the
5042 shared libraries as not backward compatible. Of course, this should
5043 be changed again when we can guarantee backward binary compatibility.
5046 *) Fix typo in get_cert_by_subject() in by_dir.c
5047 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5049 *) Rework the system to generate shared libraries:
5051 - Make note of the expected extension for the shared libraries and
5052 if there is a need for symbolic links from for example libcrypto.so.0
5053 to libcrypto.so.0.9.7. There is extended info in Configure for
5056 - Make as few rebuilds of the shared libraries as possible.
5058 - Still avoid linking the OpenSSL programs with the shared libraries.
5060 - When installing, install the shared libraries separately from the
5064 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5066 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5067 and not in SSL_clear because the latter is also used by the
5068 accept/connect functions; previously, the settings made by
5069 SSL_set_read_ahead would be lost during the handshake.
5070 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5072 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5073 Previously, it would create entries for disableed algorithms no
5077 *) Added several new manual pages for SSL_* function.
5080 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5082 *) In ssl23_get_client_hello, generate an error message when faced
5083 with an initial SSL 3.0/TLS record that is too small to contain the
5084 first two bytes of the ClientHello message, i.e. client_version.
5085 (Note that this is a pathologic case that probably has never happened
5086 in real life.) The previous approach was to use the version number
5087 from the record header as a substitute; but our protocol choice
5088 should not depend on that one because it is not authenticated
5089 by the Finished messages.
5092 *) More robust randomness gathering functions for Windows.
5093 [Jeffrey Altman <jaltman@columbia.edu>]
5095 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5096 not set then we don't setup the error code for issuer check errors
5097 to avoid possibly overwriting other errors which the callback does
5098 handle. If an application does set the flag then we assume it knows
5099 what it is doing and can handle the new informational codes
5103 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5104 a general "ANY" type, as such it should be able to decode anything
5105 including tagged types. However it didn't check the class so it would
5106 wrongly interpret tagged types in the same way as their universal
5107 counterpart and unknown types were just rejected. Changed so that the
5108 tagged and unknown types are handled in the same way as a SEQUENCE:
5109 that is the encoding is stored intact. There is also a new type
5110 "V_ASN1_OTHER" which is used when the class is not universal, in this
5111 case we have no idea what the actual type is so we just lump them all
5115 *) On VMS, stdout may very well lead to a file that is written to
5116 in a record-oriented fashion. That means that every write() will
5117 write a separate record, which will be read separately by the
5118 programs trying to read from it. This can be very confusing.
5120 The solution is to put a BIO filter in the way that will buffer
5121 text until a linefeed is reached, and then write everything a
5122 line at a time, so every record written will be an actual line,
5123 not chunks of lines and not (usually doesn't happen, but I've
5124 seen it once) several lines in one record. BIO_f_linebuffer() is
5127 Currently, it's a VMS-only method, because that's where it has
5128 been tested well enough.
5131 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5132 it can return incorrect results.
5133 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5134 but it was in 0.9.6-beta[12].)
5137 *) Disable the check for content being present when verifying detached
5138 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5139 include zero length content when signing messages.
5142 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5143 BIO_ctrl (for BIO pairs).
5146 *) Add DSO method for VMS.
5149 *) Bug fix: Montgomery multiplication could produce results with the
5153 *) Add RPM specification openssl.spec and modify it to build three
5154 packages. The default package contains applications, application
5155 documentation and run-time libraries. The devel package contains
5156 include files, static libraries and function documentation. The
5157 doc package contains the contents of the doc directory. The original
5158 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5161 *) Add a large number of documentation files for many SSL routines.
5162 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5164 *) Add a configuration entry for Sony News 4.
5165 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5167 *) Don't set the two most significant bits to one when generating a
5168 random number < q in the DSA library.
5171 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5172 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5173 the underlying transport is blocking) if a handshake took place.
5174 (The default behaviour is needed by applications such as s_client
5175 and s_server that use select() to determine when to use SSL_read;
5176 but for applications that know in advance when to expect data, it
5177 just makes things more complicated.)
5180 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5184 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5185 work better on such systems.
5186 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5188 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5189 Update PKCS12_parse() so it copies the friendlyName and the
5190 keyid to the certificates aux info.
5193 *) Fix bug in PKCS7_verify() which caused an infinite loop
5194 if there was more than one signature.
5195 [Sven Uszpelkat <su@celocom.de>]
5197 *) Major change in util/mkdef.pl to include extra information
5198 about each symbol, as well as presentig variables as well
5199 as functions. This change means that there's n more need
5200 to rebuild the .num files when some algorithms are excluded.
5203 *) Allow the verify time to be set by an application,
5204 rather than always using the current time.
5207 *) Phase 2 verify code reorganisation. The certificate
5208 verify code now looks up an issuer certificate by a
5209 number of criteria: subject name, authority key id
5210 and key usage. It also verifies self signed certificates
5211 by the same criteria. The main comparison function is
5212 X509_check_issued() which performs these checks.
5214 Lot of changes were necessary in order to support this
5215 without completely rewriting the lookup code.
5217 Authority and subject key identifier are now cached.
5219 The LHASH 'certs' is X509_STORE has now been replaced
5220 by a STACK_OF(X509_OBJECT). This is mainly because an
5221 LHASH can't store or retrieve multiple objects with
5222 the same hash value.
5224 As a result various functions (which were all internal
5225 use only) have changed to handle the new X509_STORE
5226 structure. This will break anything that messed round
5227 with X509_STORE internally.
5229 The functions X509_STORE_add_cert() now checks for an
5230 exact match, rather than just subject name.
5232 The X509_STORE API doesn't directly support the retrieval
5233 of multiple certificates matching a given criteria, however
5234 this can be worked round by performing a lookup first
5235 (which will fill the cache with candidate certificates)
5236 and then examining the cache for matches. This is probably
5237 the best we can do without throwing out X509_LOOKUP
5238 entirely (maybe later...).
5240 The X509_VERIFY_CTX structure has been enhanced considerably.
5242 All certificate lookup operations now go via a get_issuer()
5243 callback. Although this currently uses an X509_STORE it
5244 can be replaced by custom lookups. This is a simple way
5245 to bypass the X509_STORE hackery necessary to make this
5246 work and makes it possible to use more efficient techniques
5247 in future. A very simple version which uses a simple
5248 STACK for its trusted certificate store is also provided
5249 using X509_STORE_CTX_trusted_stack().
5251 The verify_cb() and verify() callbacks now have equivalents
5252 in the X509_STORE_CTX structure.
5254 X509_STORE_CTX also has a 'flags' field which can be used
5255 to customise the verify behaviour.
5258 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5259 excludes S/MIME capabilities.
5262 *) When a certificate request is read in keep a copy of the
5263 original encoding of the signed data and use it when outputing
5264 again. Signatures then use the original encoding rather than
5265 a decoded, encoded version which may cause problems if the
5266 request is improperly encoded.
5269 *) For consistency with other BIO_puts implementations, call
5270 buffer_write(b, ...) directly in buffer_puts instead of calling
5273 In BIO_puts, increment b->num_write as in BIO_write.
5274 [Peter.Sylvester@EdelWeb.fr]
5276 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5277 BN_zero, we may not return a BIGNUM with an array consisting of
5281 *) Avoid calling abort() from within the library when problems are
5282 detected, except if preprocessor symbols have been defined
5283 (such as REF_CHECK, BN_DEBUG etc.).
5286 *) New openssl application 'rsautl'. This utility can be
5287 used for low level RSA operations. DER public key
5288 BIO/fp routines also added.
5291 *) New Configure entry and patches for compiling on QNX 4.
5292 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5294 *) A demo state-machine implementation was sponsored by
5295 Nuron (http://www.nuron.com/) and is now available in
5296 demos/state_machine.
5299 *) New options added to the 'dgst' utility for signature
5300 generation and verification.
5303 *) Unrecognized PKCS#7 content types are now handled via a
5304 catch all ASN1_TYPE structure. This allows unsupported
5305 types to be stored as a "blob" and an application can
5306 encode and decode it manually.
5309 *) Fix various signed/unsigned issues to make a_strex.c
5311 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5313 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5314 length if passed a buffer. ASN1_INTEGER_to_BN failed
5315 if passed a NULL BN and its argument was negative.
5316 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5318 *) Modification to PKCS#7 encoding routines to output definite
5319 length encoding. Since currently the whole structures are in
5320 memory there's not real point in using indefinite length
5321 constructed encoding. However if OpenSSL is compiled with
5322 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5325 *) Added BIO_vprintf() and BIO_vsnprintf().
5328 *) Added more prefixes to parse for in the the strings written
5329 through a logging bio, to cover all the levels that are available
5330 through syslog. The prefixes are now:
5332 PANIC, EMERG, EMR => LOG_EMERG
5333 ALERT, ALR => LOG_ALERT
5334 CRIT, CRI => LOG_CRIT
5335 ERROR, ERR => LOG_ERR
5336 WARNING, WARN, WAR => LOG_WARNING
5337 NOTICE, NOTE, NOT => LOG_NOTICE
5338 INFO, INF => LOG_INFO
5339 DEBUG, DBG => LOG_DEBUG
5341 and as before, if none of those prefixes are present at the
5342 beginning of the string, LOG_ERR is chosen.
5344 On Win32, the LOG_* levels are mapped according to this:
5346 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5347 LOG_WARNING => EVENTLOG_WARNING_TYPE
5348 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5352 *) Made it possible to reconfigure with just the configuration
5353 argument "reconf" or "reconfigure". The command line arguments
5354 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5355 and are retrieved from there when reconfiguring.
5359 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5361 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5364 *) The obj_dat.pl script was messing up the sorting of object
5365 names. The reason was that it compared the quoted version
5366 of strings as a result "OCSP" > "OCSP Signing" because
5367 " > SPACE. Changed script to store unquoted versions of
5368 names and add quotes on output. It was also omitting some
5369 names from the lookup table if they were given a default
5370 value (that is if SN is missing it is given the same
5371 value as LN and vice versa), these are now added on the
5372 grounds that if an object has a name we should be able to
5373 look it up. Finally added warning output when duplicate
5374 short or long names are found.
5377 *) Changes needed for Tandem NSK.
5378 [Scott Uroff <scott@xypro.com>]
5380 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5381 RSA_padding_check_SSLv23(), special padding was never detected
5382 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5383 version rollback attacks was not effective.
5385 In s23_clnt.c, don't use special rollback-attack detection padding
5386 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5387 client; similarly, in s23_srvr.c, don't do the rollback check if
5388 SSL 2.0 is the only protocol enabled in the server.
5391 *) Make it possible to get hexdumps of unprintable data with 'openssl
5392 asn1parse'. By implication, the functions ASN1_parse_dump() and
5393 BIO_dump_indent() are added.
5396 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5397 these print out strings and name structures based on various
5398 flags including RFC2253 support and proper handling of
5399 multibyte characters. Added options to the 'x509' utility
5400 to allow the various flags to be set.
5403 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5404 Also change the functions X509_cmp_current_time() and
5405 X509_gmtime_adj() work with an ASN1_TIME structure,
5406 this will enable certificates using GeneralizedTime in validity
5407 dates to be checked.
5410 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5411 negative public key encodings) on by default,
5412 NO_NEG_PUBKEY_BUG can be set to disable it.
5415 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5416 content octets. An i2c_ASN1_OBJECT is unnecessary because
5417 the encoding can be trivially obtained from the structure.
5420 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5421 not read locks (CRYPTO_r_[un]lock).
5424 *) A first attempt at creating official support for shared
5425 libraries through configuration. I've kept it so the
5426 default is static libraries only, and the OpenSSL programs
5427 are always statically linked for now, but there are
5428 preparations for dynamic linking in place.
5429 This has been tested on Linux and Tru64.
5432 *) Randomness polling function for Win9x, as described in:
5433 Peter Gutmann, Software Generation of Practically Strong
5437 *) Fix so PRNG is seeded in req if using an already existing
5441 *) New options to smime application. -inform and -outform
5442 allow alternative formats for the S/MIME message including
5443 PEM and DER. The -content option allows the content to be
5444 specified separately. This should allow things like Netscape
5445 form signing output easier to verify.
5448 *) Fix the ASN1 encoding of tags using the 'long form'.
5451 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5452 STRING types. These convert content octets to and from the
5453 underlying type. The actual tag and length octets are
5454 already assumed to have been read in and checked. These
5455 are needed because all other string types have virtually
5456 identical handling apart from the tag. By having versions
5457 of the ASN1 functions that just operate on content octets
5458 IMPLICIT tagging can be handled properly. It also allows
5459 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5460 and ASN1_INTEGER are identical apart from the tag.
5463 *) Change the handling of OID objects as follows:
5465 - New object identifiers are inserted in objects.txt, following
5466 the syntax given in objects.README.
5467 - objects.pl is used to process obj_mac.num and create a new
5469 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5472 This is currently kind of a hack, and the perl code in objects.pl
5473 isn't very elegant, but it works as I intended. The simplest way
5474 to check that it worked correctly is to look in obj_dat.h and
5475 check the array nid_objs and make sure the objects haven't moved
5476 around (this is important!). Additions are OK, as well as
5477 consistent name changes.
5480 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5483 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5484 The given file adds to whatever has already been seeded into the
5485 random pool through the RANDFILE configuration file option or
5486 environment variable, or the default random state file.
5489 *) mkstack.pl now sorts each macro group into lexical order.
5490 Previously the output order depended on the order the files
5491 appeared in the directory, resulting in needless rewriting
5495 *) Patches to make OpenSSL compile under Win32 again. Mostly
5496 work arounds for the VC++ problem that it treats func() as
5497 func(void). Also stripped out the parts of mkdef.pl that
5498 added extra typesafe functions: these no longer exist.
5501 *) Reorganisation of the stack code. The macros are now all
5502 collected in safestack.h . Each macro is defined in terms of
5503 a "stack macro" of the form SKM_<name>(type, a, b). The
5504 DEBUG_SAFESTACK is now handled in terms of function casts,
5505 this has the advantage of retaining type safety without the
5506 use of additional functions. If DEBUG_SAFESTACK is not defined
5507 then the non typesafe macros are used instead. Also modified the
5508 mkstack.pl script to handle the new form. Needs testing to see
5509 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5510 the default if no major problems. Similar behaviour for ASN1_SET_OF
5511 and PKCS12_STACK_OF.
5514 *) When some versions of IIS use the 'NET' form of private key the
5515 key derivation algorithm is different. Normally MD5(password) is
5516 used as a 128 bit RC4 key. In the modified case
5517 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5518 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5519 as the old Netscape_RSA functions except they have an additional
5520 'sgckey' parameter which uses the modified algorithm. Also added
5521 an -sgckey command line option to the rsa utility. Thanks to
5522 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5523 algorithm to openssl-dev.
5526 *) The evp_local.h macros were using 'c.##kname' which resulted in
5527 invalid expansion on some systems (SCO 5.0.5 for example).
5528 Corrected to 'c.kname'.
5529 [Phillip Porch <root@theporch.com>]
5531 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5532 a STACK of email addresses from a certificate or request, these look
5533 in the subject name and the subject alternative name extensions and
5534 omit any duplicate addresses.
5537 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5538 This makes DSA verification about 2 % faster.
5541 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5542 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5543 plus overhead for 1024 bit moduli).
5544 This makes exponentiations about 0.5 % faster for 1024 bit
5545 exponents (as measured by "openssl speed rsa2048").
5548 *) Rename memory handling macros to avoid conflicts with other
5550 Malloc => OPENSSL_malloc
5551 Malloc_locked => OPENSSL_malloc_locked
5552 Realloc => OPENSSL_realloc
5553 Free => OPENSSL_free
5556 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5557 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5560 *) CygWin32 support.
5561 [John Jarvie <jjarvie@newsguy.com>]
5563 *) The type-safe stack code has been rejigged. It is now only compiled
5564 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5565 by default all type-specific stack functions are "#define"d back to
5566 standard stack functions. This results in more streamlined output
5567 but retains the type-safety checking possibilities of the original
5571 *) The STACK code has been cleaned up, and certain type declarations
5572 that didn't make a lot of sense have been brought in line. This has
5573 also involved a cleanup of sorts in safestack.h to more correctly
5574 map type-safe stack functions onto their plain stack counterparts.
5575 This work has also resulted in a variety of "const"ifications of
5576 lots of the code, especially "_cmp" operations which should normally
5577 be prototyped with "const" parameters anyway.
5580 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5581 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5582 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5583 where all of 'md' is used each time the PRNG is used, but 'state'
5584 is used only indexed by a cyclic counter. As entropy may not be
5585 well distributed from the beginning, 'md' is important as a
5586 chaining variable. However, the output function chains only half
5587 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5588 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5589 in all of 'state' being rewritten, with the new values depending
5590 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5593 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5594 the handshake is continued after ssl_verify_cert_chain();
5595 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5596 can lead to 'unexplainable' connection aborts later.
5597 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5599 *) Major EVP API cipher revision.
5600 Add hooks for extra EVP features. This allows various cipher
5601 parameters to be set in the EVP interface. Support added for variable
5602 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5603 setting of RC2 and RC5 parameters.
5605 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5608 Remove lots of duplicated code from the EVP library. For example *every*
5609 cipher init() function handles the 'iv' in the same way according to the
5610 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5611 for CFB and OFB modes they zero ctx->num.
5613 New functionality allows removal of S/MIME code RC2 hack.
5615 Most of the routines have the same form and so can be declared in terms
5618 By shifting this to the top level EVP_CipherInit() it can be removed from
5619 all individual ciphers. If the cipher wants to handle IVs or keys
5620 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5623 Change lots of functions like EVP_EncryptUpdate() to now return a
5624 value: although software versions of the algorithms cannot fail
5625 any installed hardware versions can.
5628 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5629 this option is set, tolerate broken clients that send the negotiated
5630 protocol version number instead of the requested protocol version
5634 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5635 i.e. non-zero for export ciphersuites, zero otherwise.
5636 Previous versions had this flag inverted, inconsistent with
5637 rsa_tmp_cb (..._TMP_RSA_CB).
5638 [Bodo Moeller; problem reported by Amit Chopra]
5640 *) Add missing DSA library text string. Work around for some IIS
5641 key files with invalid SEQUENCE encoding.
5644 *) Add a document (doc/standards.txt) that list all kinds of standards
5645 and so on that are implemented in OpenSSL.
5648 *) Enhance c_rehash script. Old version would mishandle certificates
5649 with the same subject name hash and wouldn't handle CRLs at all.
5650 Added -fingerprint option to crl utility, to support new c_rehash
5654 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5657 *) Fix for SSL server purpose checking. Server checking was
5658 rejecting certificates which had extended key usage present
5659 but no ssl client purpose.
5660 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5662 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5663 is a little unclear about how a blank password is handled.
5664 Since the password in encoded as a BMPString with terminating
5665 double NULL a zero length password would end up as just the
5666 double NULL. However no password at all is different and is
5667 handled differently in the PKCS#12 key generation code. NS
5668 treats a blank password as zero length. MSIE treats it as no
5669 password on export: but it will try both on import. We now do
5670 the same: PKCS12_parse() tries zero length and no password if
5671 the password is set to "" or NULL (NULL is now a valid password:
5672 it wasn't before) as does the pkcs12 application.
5675 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5676 perror when PEM_read_bio_X509_REQ fails, the error message must
5677 be obtained from the error queue.
5680 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5681 it in ERR_remove_state if appropriate, and change ERR_get_state
5682 accordingly to avoid race conditions (this is necessary because
5683 thread_hash is no longer constant once set).
5686 *) Bugfix for linux-elf makefile.one.
5689 *) RSA_get_default_method() will now cause a default
5690 RSA_METHOD to be chosen if one doesn't exist already.
5691 Previously this was only set during a call to RSA_new()
5692 or RSA_new_method(NULL) meaning it was possible for
5693 RSA_get_default_method() to return NULL.
5696 *) Added native name translation to the existing DSO code
5697 that will convert (if the flag to do so is set) filenames
5698 that are sufficiently small and have no path information
5699 into a canonical native form. Eg. "blah" converted to
5700 "libblah.so" or "blah.dll" etc.
5703 *) New function ERR_error_string_n(e, buf, len) which is like
5704 ERR_error_string(e, buf), but writes at most 'len' bytes
5705 including the 0 terminator. For ERR_error_string_n, 'buf'
5707 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5709 *) CONF library reworked to become more general. A new CONF
5710 configuration file reader "class" is implemented as well as a
5711 new functions (NCONF_*, for "New CONF") to handle it. The now
5712 old CONF_* functions are still there, but are reimplemented to
5713 work in terms of the new functions. Also, a set of functions
5714 to handle the internal storage of the configuration data is
5715 provided to make it easier to write new configuration file
5716 reader "classes" (I can definitely see something reading a
5717 configuration file in XML format, for example), called _CONF_*,
5718 or "the configuration storage API"...
5720 The new configuration file reading functions are:
5722 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5723 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5725 NCONF_default, NCONF_WIN32
5727 NCONF_dump_fp, NCONF_dump_bio
5729 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5730 NCONF_new creates a new CONF object. This works in the same way
5731 as other interfaces in OpenSSL, like the BIO interface.
5732 NCONF_dump_* dump the internal storage of the configuration file,
5733 which is useful for debugging. All other functions take the same
5734 arguments as the old CONF_* functions wth the exception of the
5735 first that must be a `CONF *' instead of a `LHASH *'.
5737 To make it easer to use the new classes with the old CONF_* functions,
5738 the function CONF_set_default_method is provided.
5741 *) Add '-tls1' option to 'openssl ciphers', which was already
5742 mentioned in the documentation but had not been implemented.
5743 (This option is not yet really useful because even the additional
5744 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5747 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5748 OpenSSL-based applications) load shared libraries and bind to
5749 them in a portable way.
5750 [Geoff Thorpe, with contributions from Richard Levitte]
5752 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5754 *) Make sure _lrotl and _lrotr are only used with MSVC.
5756 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5757 (the default implementation of RAND_status).
5759 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5760 to '-clrext' (= clear extensions), as intended and documented.
5761 [Bodo Moeller; inconsistency pointed out by Michael Attili
5764 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5765 was larger than the MD block size.
5766 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5768 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5769 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5770 using the passed key: if the passed key was a private key the result
5771 of X509_print(), for example, would be to print out all the private key
5775 *) des_quad_cksum() byte order bug fix.
5776 [Ulf Möller, using the problem description in krb4-0.9.7, where
5777 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5779 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5781 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5783 *) For easily testing in shell scripts whether some command
5784 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5785 returns with exit code 0 iff no command of the given name is available.
5786 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5787 the output goes to stdout and nothing is printed to stderr.
5788 Additional arguments are always ignored.
5790 Since for each cipher there is a command of the same name,
5791 the 'no-cipher' compilation switches can be tested this way.
5793 ('openssl no-XXX' is not able to detect pseudo-commands such
5794 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5797 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5800 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5801 is set; it will be thrown away anyway because each handshake creates
5803 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5804 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5805 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5806 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5809 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5810 'Q' and 'R' lose their special meanings (quit/renegotiate).
5811 This is part of what -quiet does; unlike -quiet, -ign_eof
5812 does not suppress any output.
5815 *) Add compatibility options to the purpose and trust code. The
5816 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5817 accepts a certificate or CA, this was the previous behaviour,
5818 with all the associated security issues.
5820 X509_TRUST_COMPAT is the old trust behaviour: only and
5821 automatically trust self signed roots in certificate store. A
5822 new trust setting X509_TRUST_DEFAULT is used to specify that
5823 a purpose has no associated trust setting and it should instead
5824 use the value in the default purpose.
5827 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5828 and fix a memory leak.
5831 *) In util/mkerr.pl (which implements 'make errors'), preserve
5832 reason strings from the previous version of the .c file, as
5833 the default to have only downcase letters (and digits) in
5834 automatically generated reasons codes is not always appropriate.
5837 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5838 using strerror. Previously, ERR_reason_error_string() returned
5839 library names as reason strings for SYSerr; but SYSerr is a special
5840 case where small numbers are errno values, not library numbers.
5843 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5844 converts DSA parameters into DH parameters. (When creating parameters,
5845 DSA_generate_parameters is used.)
5848 *) Include 'length' (recommended exponent length) in C code generated
5849 by 'openssl dhparam -C'.
5852 *) The second argument to set_label in perlasm was already being used
5853 so couldn't be used as a "file scope" flag. Moved to third argument
5857 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5858 instead of RAND_bytes for encryption IVs and salts.
5861 *) Include RAND_status() into RAND_METHOD instead of implementing
5862 it only for md_rand.c Otherwise replacing the PRNG by calling
5863 RAND_set_rand_method would be impossible.
5866 *) Don't let DSA_generate_key() enter an infinite loop if the random
5867 number generation fails.
5870 *) New 'rand' application for creating pseudo-random output.
5873 *) Added configuration support for Linux/IA64
5874 [Rolf Haberrecker <rolf@suse.de>]
5876 *) Assembler module support for Mingw32.
5879 *) Shared library support for HPUX (in shlib/).
5880 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5882 *) Shared library support for Solaris gcc.
5883 [Lutz Behnke <behnke@trustcenter.de>]
5885 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5887 *) PKCS7_encrypt() was adding text MIME headers twice because they
5888 were added manually and by SMIME_crlf_copy().
5891 *) In bntest.c don't call BN_rand with zero bits argument.
5892 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5894 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5895 case was implemented. This caused BN_div_recp() to fail occasionally.
5898 *) Add an optional second argument to the set_label() in the perl
5899 assembly language builder. If this argument exists and is set
5900 to 1 it signals that the assembler should use a symbol whose
5901 scope is the entire file, not just the current function. This
5902 is needed with MASM which uses the format label:: for this scope.
5903 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5905 *) Change the ASN1 types so they are typedefs by default. Before
5906 almost all types were #define'd to ASN1_STRING which was causing
5907 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5911 *) Change names of new functions to the new get1/get0 naming
5912 convention: After 'get1', the caller owns a reference count
5913 and has to call ..._free; 'get0' returns a pointer to some
5914 data structure without incrementing reference counters.
5915 (Some of the existing 'get' functions increment a reference
5916 counter, some don't.)
5917 Similarly, 'set1' and 'add1' functions increase reference
5918 counters or duplicate objects.
5921 *) Allow for the possibility of temp RSA key generation failure:
5922 the code used to assume it always worked and crashed on failure.
5925 *) Fix potential buffer overrun problem in BIO_printf().
5926 [Ulf Möller, using public domain code by Patrick Powell; problem
5927 pointed out by David Sacerdote <das33@cornell.edu>]
5929 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5930 RAND_egd() and RAND_status(). In the command line application,
5931 the EGD socket can be specified like a seed file using RANDFILE
5935 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5936 Some CAs (e.g. Verisign) distribute certificates in this form.
5939 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5940 list to exclude them. This means that no special compilation option
5941 is needed to use anonymous DH: it just needs to be included in the
5945 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5946 EVP_MD_type. The old functionality is available in a new macro called
5947 EVP_MD_md(). Change code that uses it and update docs.
5950 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5951 where the 'void *' argument is replaced by a function pointer argument.
5952 Previously 'void *' was abused to point to functions, which works on
5953 many platforms, but is not correct. As these functions are usually
5954 called by macros defined in OpenSSL header files, most source code
5955 should work without changes.
5958 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5959 sections with information on -D... compiler switches used for
5960 compiling the library so that applications can see them. To enable
5961 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5962 must be defined. E.g.,
5963 #define OPENSSL_ALGORITHM_DEFINES
5964 #include <openssl/opensslconf.h>
5965 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5966 [Richard Levitte, Ulf and Bodo Möller]
5968 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5972 *) Change the 'other' type in certificate aux info to a STACK_OF
5973 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5974 the required ASN1 format: arbitrary types determined by an OID.
5977 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5978 argument to 'req'. This is not because the function is newer or
5979 better than others it just uses the work 'NEW' in the certificate
5980 request header lines. Some software needs this.
5983 *) Reorganise password command line arguments: now passwords can be
5984 obtained from various sources. Delete the PEM_cb function and make
5985 it the default behaviour: i.e. if the callback is NULL and the
5986 usrdata argument is not NULL interpret it as a null terminated pass
5987 phrase. If usrdata and the callback are NULL then the pass phrase
5988 is prompted for as usual.
5991 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5992 the support is automatically enabled. The resulting binaries will
5993 autodetect the card and use it if present.
5994 [Ben Laurie and Compaq Inc.]
5996 *) Work around for Netscape hang bug. This sends certificate request
5997 and server done in one record. Since this is perfectly legal in the
5998 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5999 the bugs/SSLv3 entry for more info.
6002 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6005 *) Add -rand argument to smime and pkcs12 applications and read/write
6009 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6012 *) Add command line password options to the remaining applications.
6015 *) Bug fix for BN_div_recp() for numerators with an even number of
6019 *) More tests in bntest.c, and changed test_bn output.
6022 *) ./config recognizes MacOS X now.
6025 *) Bug fix for BN_div() when the first words of num and divsor are
6026 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6029 *) Add support for various broken PKCS#8 formats, and command line
6030 options to produce them.
6033 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6034 get temporary BIGNUMs from a BN_CTX.
6037 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6041 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6042 include a #define from the old name to the new. The original intent
6043 was that statically linked binaries could for example just call
6044 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6045 link with digests. This never worked becayse SSLeay_add_all_digests()
6046 and SSLeay_add_all_ciphers() were in the same source file so calling
6047 one would link with the other. They are now in separate source files.
6050 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6053 *) Use a less unusual form of the Miller-Rabin primality test (it used
6054 a binary algorithm for exponentiation integrated into the Miller-Rabin
6055 loop, our standard modexp algorithms are faster).
6058 *) Support for the EBCDIC character set completed.
6059 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6061 *) Source code cleanups: use const where appropriate, eliminate casts,
6062 use void * instead of char * in lhash.
6065 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6066 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6067 this the server could overwrite ephemeral keys that the client
6071 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6072 using 50 iterations of the Rabin-Miller test.
6074 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6075 iterations of the Rabin-Miller test as required by the appendix
6076 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6077 As BN_is_prime_fasttest includes trial division, DSA parameter
6078 generation becomes much faster.
6080 This implies a change for the callback functions in DSA_is_prime
6081 and DSA_generate_parameters: The callback function is called once
6082 for each positive witness in the Rabin-Miller test, not just
6083 occasionally in the inner loop; and the parameters to the
6084 callback function now provide an iteration count for the outer
6085 loop rather than for the current invocation of the inner loop.
6086 DSA_generate_parameters additionally can call the callback
6087 function with an 'iteration count' of -1, meaning that a
6088 candidate has passed the trial division test (when q is generated
6089 from an application-provided seed, trial division is skipped).
6092 *) New function BN_is_prime_fasttest that optionally does trial
6093 division before starting the Rabin-Miller test and has
6094 an additional BN_CTX * argument (whereas BN_is_prime always
6095 has to allocate at least one BN_CTX).
6096 'callback(1, -1, cb_arg)' is called when a number has passed the
6097 trial division stage.
6100 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6104 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6107 *) New function BN_pseudo_rand().
6110 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6111 bignum version of BN_from_montgomery() with the working code from
6112 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6116 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6117 made it impossible to use the same SSL_SESSION data structure in
6118 SSL2 clients in multiple threads.
6121 *) The return value of RAND_load_file() no longer counts bytes obtained
6122 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6123 to seed the PRNG (previously an explicit byte count was required).
6124 [Ulf Möller, Bodo Möller]
6126 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6127 used (char *) instead of (void *) and had casts all over the place.
6130 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6133 *) Retain source code compatibility for BN_prime_checks macro:
6134 BN_is_prime(..., BN_prime_checks, ...) now uses
6135 BN_prime_checks_for_size to determine the appropriate number of
6136 Rabin-Miller iterations.
6139 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6140 DH_CHECK_P_NOT_SAFE_PRIME.
6141 (Check if this is true? OpenPGP calls them "strong".)
6144 *) Merge the functionality of "dh" and "gendh" programs into a new program
6145 "dhparam". The old programs are retained for now but will handle DH keys
6146 (instead of parameters) in future.
6149 *) Make the ciphers, s_server and s_client programs check the return values
6150 when a new cipher list is set.
6153 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6154 ciphers. Before when the 56bit ciphers were enabled the sorting was
6157 The syntax for the cipher sorting has been extended to support sorting by
6158 cipher-strength (using the strength_bits hard coded in the tables).
6159 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6161 Fix a bug in the cipher-command parser: when supplying a cipher command
6162 string with an "undefined" symbol (neither command nor alphanumeric
6163 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6164 an error is flagged.
6166 Due to the strength-sorting extension, the code of the
6167 ssl_create_cipher_list() function was completely rearranged. I hope that
6168 the readability was also increased :-)
6169 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6171 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6172 for the first serial number and places 2 in the serial number file. This
6173 avoids problems when the root CA is created with serial number zero and
6174 the first user certificate has the same issuer name and serial number
6178 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6179 the new code. Add documentation for this stuff.
6182 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6183 X509_*() to X509at_*() on the grounds that they don't handle X509
6184 structures and behave in an analagous way to the X509v3 functions:
6185 they shouldn't be called directly but wrapper functions should be used
6188 So we also now have some wrapper functions that call the X509at functions
6189 when passed certificate requests. (TO DO: similar things can be done with
6190 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6191 things. Some of these need some d2i or i2d and print functionality
6192 because they handle more complex structures.)
6195 *) Add missing #ifndefs that caused missing symbols when building libssl
6196 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6197 NO_RSA in ssl/s2*.c.
6198 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6200 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6201 has a return value which indicates the quality of the random data
6202 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6203 error queue. New function RAND_pseudo_bytes() generates output that is
6204 guaranteed to be unique but not unpredictable. RAND_add is like
6205 RAND_seed, but takes an extra argument for an entropy estimate
6206 (RAND_seed always assumes full entropy).
6209 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6210 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6211 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6212 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6213 false-positive rate of at most 2^-80 for random input.
6216 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6219 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6220 in the 0.9.5 release), this returns the chain
6221 from an X509_CTX structure with a dup of the stack and all
6222 the X509 reference counts upped: so the stack will exist
6223 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6226 Also make SSL_SESSION_print() print out the verify return
6230 *) Add manpage for the pkcs12 command. Also change the default
6231 behaviour so MAC iteration counts are used unless the new
6232 -nomaciter option is used. This improves file security and
6233 only older versions of MSIE (4.0 for example) need it.
6236 *) Honor the no-xxx Configure options when creating .DEF files.
6239 *) Add PKCS#10 attributes to field table: challengePassword,
6240 unstructuredName and unstructuredAddress. These are taken from
6241 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6242 international characters are used.
6244 More changes to X509_ATTRIBUTE code: allow the setting of types
6245 based on strings. Remove the 'loc' parameter when adding
6246 attributes because these will be a SET OF encoding which is sorted
6250 *) Initial changes to the 'req' utility to allow request generation
6251 automation. This will allow an application to just generate a template
6252 file containing all the field values and have req construct the
6255 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6256 used all over the place including certificate requests and PKCS#7
6257 structures. They are currently handled manually where necessary with
6258 some primitive wrappers for PKCS#7. The new functions behave in a
6259 manner analogous to the X509 extension functions: they allow
6260 attributes to be looked up by NID and added.
6262 Later something similar to the X509V3 code would be desirable to
6263 automatically handle the encoding, decoding and printing of the
6264 more complex types. The string types like challengePassword can
6265 be handled by the string table functions.
6267 Also modified the multi byte string table handling. Now there is
6268 a 'global mask' which masks out certain types. The table itself
6269 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6270 is useful when for example there is only one permissible type
6271 (as in countryName) and using the mask might result in no valid
6275 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6276 SSL_get_peer_finished to allow applications to obtain the latest
6277 Finished messages sent to the peer or expected from the peer,
6278 respectively. (SSL_get_peer_finished is usually the Finished message
6279 actually received from the peer, otherwise the protocol will be aborted.)
6281 As the Finished message are message digests of the complete handshake
6282 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6283 be used for external authentication procedures when the authentication
6284 provided by SSL/TLS is not desired or is not enough.
6287 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6288 the host supports BWX extension and if Compaq C is present on the
6289 $PATH. Just exploiting of the BWX extension results in 20-30%
6290 performance kick for some algorithms, e.g. DES and RC4 to mention
6291 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6295 *) Add support for MS "fast SGC". This is arguably a violation of the
6296 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6297 weak crypto and after checking the certificate is SGC a second one
6298 with strong crypto. MS SGC stops the first handshake after receiving
6299 the server certificate message and sends a second client hello. Since
6300 a server will typically do all the time consuming operations before
6301 expecting any further messages from the client (server key exchange
6302 is the most expensive) there is little difference between the two.
6304 To get OpenSSL to support MS SGC we have to permit a second client
6305 hello message after we have sent server done. In addition we have to
6306 reset the MAC if we do get this second client hello.
6309 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6310 if a DER encoded private key is RSA or DSA traditional format. Changed
6311 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6312 format DER encoded private key. Newer code should use PKCS#8 format which
6313 has the key type encoded in the ASN1 structure. Added DER private key
6314 support to pkcs8 application.
6317 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6318 ciphersuites has been selected (as required by the SSL 3/TLS 1
6319 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6320 is set, we interpret this as a request to violate the specification
6321 (the worst that can happen is a handshake failure, and 'correct'
6322 behaviour would result in a handshake failure anyway).
6325 *) In SSL_CTX_add_session, take into account that there might be multiple
6326 SSL_SESSION structures with the same session ID (e.g. when two threads
6327 concurrently obtain them from an external cache).
6328 The internal cache can handle only one SSL_SESSION with a given ID,
6329 so if there's a conflict, we now throw out the old one to achieve
6333 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6334 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6335 some routines that use cipher OIDs: some ciphers do not have OIDs
6336 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6340 *) Simplify the trust setting structure and code. Now we just have
6341 two sequences of OIDs for trusted and rejected settings. These will
6342 typically have values the same as the extended key usage extension
6343 and any application specific purposes.
6345 The trust checking code now has a default behaviour: it will just
6346 check for an object with the same NID as the passed id. Functions can
6347 be provided to override either the default behaviour or the behaviour
6348 for a given id. SSL client, server and email already have functions
6349 in place for compatibility: they check the NID and also return "trusted"
6350 if the certificate is self signed.
6353 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6354 traditional format into an EVP_PKEY structure.
6357 *) Add a password callback function PEM_cb() which either prompts for
6358 a password if usr_data is NULL or otherwise assumes it is a null
6359 terminated password. Allow passwords to be passed on command line
6360 environment or config files in a few more utilities.
6363 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6364 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6365 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6366 Update documentation.
6369 *) Support for ASN1 "NULL" type. This could be handled before by using
6370 ASN1_TYPE but there wasn't any function that would try to read a NULL
6371 and produce an error if it couldn't. For compatibility we also have
6372 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6373 don't allocate anything because they don't need to.
6376 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6378 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6380 *) Rebuild of the memory allocation routines used by OpenSSL code and
6381 possibly others as well. The purpose is to make an interface that
6382 provide hooks so anyone can build a separate set of allocation and
6383 deallocation routines to be used by OpenSSL, for example memory
6384 pool implementations, or something else, which was previously hard
6385 since Malloc(), Realloc() and Free() were defined as macros having
6386 the values malloc, realloc and free, respectively (except for Win32
6387 compilations). The same is provided for memory debugging code.
6388 OpenSSL already comes with functionality to find memory leaks, but
6389 this gives people a chance to debug other memory problems.
6391 With these changes, a new set of functions and macros have appeared:
6393 CRYPTO_set_mem_debug_functions() [F]
6394 CRYPTO_get_mem_debug_functions() [F]
6395 CRYPTO_dbg_set_options() [F]
6396 CRYPTO_dbg_get_options() [F]
6397 CRYPTO_malloc_debug_init() [M]
6399 The memory debug functions are NULL by default, unless the library
6400 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6401 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6402 gives the standard debugging functions that come with OpenSSL) or
6403 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6404 provided by the library user) must be used. When the standard
6405 debugging functions are used, CRYPTO_dbg_set_options can be used to
6406 request additional information:
6407 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6408 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6410 Also, things like CRYPTO_set_mem_functions will always give the
6411 expected result (the new set of functions is used for allocation
6412 and deallocation) at all times, regardless of platform and compiler
6415 To finish it up, some functions that were never use in any other
6416 way than through macros have a new API and new semantic:
6419 CRYPTO_dbg_realloc()
6422 All macros of value have retained their old syntax.
6423 [Richard Levitte and Bodo Moeller]
6425 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6426 ordering of SMIMECapabilities wasn't in "strength order" and there
6427 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6431 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6432 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6433 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6435 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6436 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6437 functionality to handle multipart/signed properly) and a utility
6438 called 'smime' to call all this stuff. This is based on code I
6439 originally wrote for Celo who have kindly allowed it to be
6440 included in OpenSSL.
6443 *) Add variants des_set_key_checked and des_set_key_unchecked of
6444 des_set_key (aka des_key_sched). Global variable des_check_key
6445 decides which of these is called by des_set_key; this way
6446 des_check_key behaves as it always did, but applications and
6447 the library itself, which was buggy for des_check_key == 1,
6448 have a cleaner way to pick the version they need.
6451 *) New function PKCS12_newpass() which changes the password of a
6455 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6456 dynamic mix. In both cases the ids can be used as an index into the
6457 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6458 functions so they accept a list of the field values and the
6459 application doesn't need to directly manipulate the X509_TRUST
6463 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6467 *) Modify the way the V3 extension code looks up extensions. This now
6468 works in a similar way to the object code: we have some "standard"
6469 extensions in a static table which is searched with OBJ_bsearch()
6470 and the application can add dynamic ones if needed. The file
6471 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6472 updated whenever a new extension is added to the core code and kept
6473 in ext_nid order. There is a simple program 'tabtest.c' which checks
6474 this. New extensions are not added too often so this file can readily
6475 be maintained manually.
6477 There are two big advantages in doing things this way. The extensions
6478 can be looked up immediately and no longer need to be "added" using
6479 X509V3_add_standard_extensions(): this function now does nothing.
6480 [Side note: I get *lots* of email saying the extension code doesn't
6481 work because people forget to call this function]
6482 Also no dynamic allocation is done unless new extensions are added:
6483 so if we don't add custom extensions there is no need to call
6484 X509V3_EXT_cleanup().
6487 *) Modify enc utility's salting as follows: make salting the default. Add a
6488 magic header, so unsalted files fail gracefully instead of just decrypting
6489 to garbage. This is because not salting is a big security hole, so people
6490 should be discouraged from doing it.
6493 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6494 digest to be passed on the command line but it only used this
6495 parameter when signing a certificate. Modified so all relevant
6496 operations are affected by the digest parameter including the
6497 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6498 DSA key was used because it didn't fix the digest.
6501 *) Initial certificate chain verify code. Currently tests the untrusted
6502 certificates for consistency with the verify purpose (which is set
6503 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6505 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6506 this is because it will reject chains with invalid extensions whereas
6507 every previous version of OpenSSL and SSLeay made no checks at all.
6509 Trust code: checks the root CA for the relevant trust settings. Trust
6510 settings have an initial value consistent with the verify purpose: e.g.
6511 if the verify purpose is for SSL client use it expects the CA to be
6512 trusted for SSL client use. However the default value can be changed to
6513 permit custom trust settings: one example of this would be to only trust
6514 certificates from a specific "secure" set of CAs.
6516 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6517 which should be used for version portability: especially since the
6518 verify structure is likely to change more often now.
6520 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6521 to set them. If not set then assume SSL clients will verify SSL servers
6524 Two new options to the verify program: -untrusted allows a set of
6525 untrusted certificates to be passed in and -purpose which sets the
6526 intended purpose of the certificate. If a purpose is set then the
6527 new chain verify code is used to check extension consistency.
6530 *) Support for the authority information access extension.
6533 *) Modify RSA and DSA PEM read routines to transparently handle
6534 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6535 public keys in a format compatible with certificate
6536 SubjectPublicKeyInfo structures. Unfortunately there were already
6537 functions called *_PublicKey_* which used various odd formats so
6538 these are retained for compatibility: however the DSA variants were
6539 never in a public release so they have been deleted. Changed dsa/rsa
6540 utilities to handle the new format: note no releases ever handled public
6541 keys so we should be OK.
6543 The primary motivation for this change is to avoid the same fiasco
6544 that dogs private keys: there are several incompatible private key
6545 formats some of which are standard and some OpenSSL specific and
6546 require various evil hacks to allow partial transparent handling and
6547 even then it doesn't work with DER formats. Given the option anything
6548 other than PKCS#8 should be dumped: but the other formats have to
6549 stay in the name of compatibility.
6551 With public keys and the benefit of hindsight one standard format
6552 is used which works with EVP_PKEY, RSA or DSA structures: though
6553 it clearly returns an error if you try to read the wrong kind of key.
6555 Added a -pubkey option to the 'x509' utility to output the public key.
6556 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6557 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6558 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6559 that do the same as the EVP_PKEY_assign_*() except they up the
6560 reference count of the added key (they don't "swallow" the
6564 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6565 CRLs would fail if the file contained no certificates or no CRLs:
6566 added a new function to read in both types and return the number
6567 read: this means that if none are read it will be an error. The
6568 DER versions of the certificate and CRL reader would always fail
6569 because it isn't possible to mix certificates and CRLs in DER format
6570 without choking one or the other routine. Changed this to just read
6571 a certificate: this is the best we can do. Also modified the code
6572 in apps/verify.c to take notice of return codes: it was previously
6573 attempting to read in certificates from NULL pointers and ignoring
6574 any errors: this is one reason why the cert and CRL reader seemed
6575 to work. It doesn't check return codes from the default certificate
6576 routines: these may well fail if the certificates aren't installed.
6579 *) Code to support otherName option in GeneralName.
6582 *) First update to verify code. Change the verify utility
6583 so it warns if it is passed a self signed certificate:
6584 for consistency with the normal behaviour. X509_verify
6585 has been modified to it will now verify a self signed
6586 certificate if *exactly* the same certificate appears
6587 in the store: it was previously impossible to trust a
6588 single self signed certificate. This means that:
6589 openssl verify ss.pem
6590 now gives a warning about a self signed certificate but
6591 openssl verify -CAfile ss.pem ss.pem
6595 *) For servers, store verify_result in SSL_SESSION data structure
6596 (and add it to external session representation).
6597 This is needed when client certificate verifications fails,
6598 but an application-provided verification callback (set by
6599 SSL_CTX_set_cert_verify_callback) allows accepting the session
6600 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6601 but returns 1): When the session is reused, we have to set
6602 ssl->verify_result to the appropriate error code to avoid
6604 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6606 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6607 case in PKCS7_dataInit() where the signed PKCS7 structure
6608 didn't contain any existing data because it was being created.
6609 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6611 *) Add a salt to the key derivation routines in enc.c. This
6612 forms the first 8 bytes of the encrypted file. Also add a
6613 -S option to allow a salt to be input on the command line.
6616 *) New function X509_cmp(). Oddly enough there wasn't a function
6617 to compare two certificates. We do this by working out the SHA1
6618 hash and comparing that. X509_cmp() will be needed by the trust
6622 *) SSL_get1_session() is like SSL_get_session(), but increments
6623 the reference count in the SSL_SESSION returned.
6624 [Geoff Thorpe <geoff@eu.c2.net>]
6626 *) Fix for 'req': it was adding a null to request attributes.
6627 Also change the X509_LOOKUP and X509_INFO code to handle
6628 certificate auxiliary information.
6631 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6635 *) Add the possibility to add extra information to the memory leak
6636 detecting output, to form tracebacks, showing from where each
6637 allocation was originated: CRYPTO_push_info("constant string") adds
6638 the string plus current file name and line number to a per-thread
6639 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6640 is like calling CYRPTO_pop_info() until the stack is empty.
6641 Also updated memory leak detection code to be multi-thread-safe.
6644 *) Add options -text and -noout to pkcs7 utility and delete the
6645 encryption options which never did anything. Update docs.
6648 *) Add options to some of the utilities to allow the pass phrase
6649 to be included on either the command line (not recommended on
6650 OSes like Unix) or read from the environment. Update the
6651 manpages and fix a few bugs.
6654 *) Add a few manpages for some of the openssl commands.
6657 *) Fix the -revoke option in ca. It was freeing up memory twice,
6658 leaking and not finding already revoked certificates.
6661 *) Extensive changes to support certificate auxiliary information.
6662 This involves the use of X509_CERT_AUX structure and X509_AUX
6663 functions. An X509_AUX function such as PEM_read_X509_AUX()
6664 can still read in a certificate file in the usual way but it
6665 will also read in any additional "auxiliary information". By
6666 doing things this way a fair degree of compatibility can be
6667 retained: existing certificates can have this information added
6668 using the new 'x509' options.
6670 Current auxiliary information includes an "alias" and some trust
6671 settings. The trust settings will ultimately be used in enhanced
6672 certificate chain verification routines: currently a certificate
6673 can only be trusted if it is self signed and then it is trusted
6677 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6678 The problem was that one of the replacement routines had not been working
6679 since SSLeay releases. For now the offending routine has been replaced
6680 with non-optimised assembler. Even so, this now gives around 95%
6681 performance improvement for 1024 bit RSA signs.
6684 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6685 handling. Most clients have the effective key size in bits equal to
6686 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6687 A few however don't do this and instead use the size of the decrypted key
6688 to determine the RC2 key length and the AlgorithmIdentifier to determine
6689 the effective key length. In this case the effective key length can still
6690 be 40 bits but the key length can be 168 bits for example. This is fixed
6691 by manually forcing an RC2 key into the EVP_PKEY structure because the
6692 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6693 the key length and effective key length are equal.
6696 *) Add a bunch of functions that should simplify the creation of
6697 X509_NAME structures. Now you should be able to do:
6698 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6699 and have it automatically work out the correct field type and fill in
6700 the structures. The more adventurous can try:
6701 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6702 and it will (hopefully) work out the correct multibyte encoding.
6705 *) Change the 'req' utility to use the new field handling and multibyte
6706 copy routines. Before the DN field creation was handled in an ad hoc
6707 way in req, ca, and x509 which was rather broken and didn't support
6708 BMPStrings or UTF8Strings. Since some software doesn't implement
6709 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6710 using the dirstring_type option. See the new comment in the default
6711 openssl.cnf for more info.
6714 *) Make crypto/rand/md_rand.c more robust:
6715 - Assure unique random numbers after fork().
6716 - Make sure that concurrent threads access the global counter and
6717 md serializably so that we never lose entropy in them
6718 or use exactly the same state in multiple threads.
6719 Access to the large state is not always serializable because
6720 the additional locking could be a performance killer, and
6721 md should be large enough anyway.
6724 *) New file apps/app_rand.c with commonly needed functionality
6725 for handling the random seed file.
6727 Use the random seed file in some applications that previously did not:
6729 dsaparam -genkey (which also ignored its '-rand' option),
6732 x509 (when signing).
6733 Except on systems with /dev/urandom, it is crucial to have a random
6734 seed file at least for key creation, DSA signing, and for DH exchanges;
6735 for RSA signatures we could do without one.
6737 gendh and gendsa (unlike genrsa) used to read only the first byte
6738 of each file listed in the '-rand' option. The function as previously
6739 found in genrsa is now in app_rand.c and is used by all programs
6740 that support '-rand'.
6743 *) In RAND_write_file, use mode 0600 for creating files;
6744 don't just chmod when it may be too late.
6747 *) Report an error from X509_STORE_load_locations
6748 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6751 *) New function ASN1_mbstring_copy() this copies a string in either
6752 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6753 into an ASN1_STRING type. A mask of permissible types is passed
6754 and it chooses the "minimal" type to use or an error if not type
6758 *) Add function equivalents to the various macros in asn1.h. The old
6759 macros are retained with an M_ prefix. Code inside the library can
6760 use the M_ macros. External code (including the openssl utility)
6761 should *NOT* in order to be "shared library friendly".
6764 *) Add various functions that can check a certificate's extensions
6765 to see if it usable for various purposes such as SSL client,
6766 server or S/MIME and CAs of these types. This is currently
6767 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6768 verification. Also added a -purpose flag to x509 utility to
6769 print out all the purposes.
6772 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6776 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6777 for, obtain and decode and extension and obtain its critical flag.
6778 This allows all the necessary extension code to be handled in a
6779 single function call.
6782 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6783 platforms. See crypto/rc4/rc4_enc.c for further details.
6786 *) New -noout option to asn1parse. This causes no output to be produced
6787 its main use is when combined with -strparse and -out to extract data
6788 from a file (which may not be in ASN.1 format).
6791 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6792 when producing the local key id.
6793 [Richard Levitte <levitte@stacken.kth.se>]
6795 *) New option -dhparam in s_server. This allows a DH parameter file to be
6796 stated explicitly. If it is not stated then it tries the first server
6797 certificate file. The previous behaviour hard coded the filename
6801 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6802 a public key to be input or output. For example:
6803 openssl rsa -in key.pem -pubout -out pubkey.pem
6804 Also added necessary DSA public key functions to handle this.
6807 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6808 in the message. This was handled by allowing
6809 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6810 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6812 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6813 to the end of the strings whereas this didn't. This would cause problems
6814 if strings read with d2i_ASN1_bytes() were later modified.
6815 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6817 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6818 data and it contains EOF it will end up returning an error. This is
6819 caused by input 46 bytes long. The cause is due to the way base64
6820 BIOs find the start of base64 encoded data. They do this by trying a
6821 trial decode on each line until they find one that works. When they
6822 do a flag is set and it starts again knowing it can pass all the
6823 data directly through the decoder. Unfortunately it doesn't reset
6824 the context it uses. This means that if EOF is reached an attempt
6825 is made to pass two EOFs through the context and this causes the
6826 resulting error. This can also cause other problems as well. As is
6827 usual with these problems it takes *ages* to find and the fix is
6828 trivial: move one line.
6829 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6831 *) Ugly workaround to get s_client and s_server working under Windows. The
6832 old code wouldn't work because it needed to select() on sockets and the
6833 tty (for keypresses and to see if data could be written). Win32 only
6834 supports select() on sockets so we select() with a 1s timeout on the
6835 sockets and then see if any characters are waiting to be read, if none
6836 are present then we retry, we also assume we can always write data to
6837 the tty. This isn't nice because the code then blocks until we've
6838 received a complete line of data and it is effectively polling the
6839 keyboard at 1s intervals: however it's quite a bit better than not
6840 working at all :-) A dedicated Windows application might handle this
6841 with an event loop for example.
6844 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6845 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6846 will be called when RSA_sign() and RSA_verify() are used. This is useful
6847 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6848 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6849 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6850 This necessitated the support of an extra signature type NID_md5_sha1
6851 for SSL signatures and modifications to the SSL library to use it instead
6852 of calling RSA_public_decrypt() and RSA_private_encrypt().
6855 *) Add new -verify -CAfile and -CApath options to the crl program, these
6856 will lookup a CRL issuers certificate and verify the signature in a
6857 similar way to the verify program. Tidy up the crl program so it
6858 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6859 less strict. It will now permit CRL extensions even if it is not
6860 a V2 CRL: this will allow it to tolerate some broken CRLs.
6863 *) Initialize all non-automatic variables each time one of the openssl
6864 sub-programs is started (this is necessary as they may be started
6865 multiple times from the "OpenSSL>" prompt).
6866 [Lennart Bang, Bodo Moeller]
6868 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6869 removing all other RSA functionality (this is what NO_RSA does). This
6870 is so (for example) those in the US can disable those operations covered
6871 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6875 *) Non-copying interface to BIO pairs.
6876 (still largely untested)
6879 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6880 ASCII string. This was handled independently in various places before.
6883 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6884 UTF8 strings a character at a time.
6887 *) Use client_version from client hello to select the protocol
6888 (s23_srvr.c) and for RSA client key exchange verification
6889 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6892 *) Add various utility functions to handle SPKACs, these were previously
6893 handled by poking round in the structure internals. Added new function
6894 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6895 print, verify and generate SPKACs. Based on an original idea from
6896 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6899 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6902 *) Allow the config file extension section to be overwritten on the
6903 command line. Based on an original idea from Massimiliano Pala
6904 <madwolf@comune.modena.it>. The new option is called -extensions
6905 and can be applied to ca, req and x509. Also -reqexts to override
6906 the request extensions in req and -crlexts to override the crl extensions
6910 *) Add new feature to the SPKAC handling in ca. Now you can include
6911 the same field multiple times by preceding it by "XXXX." for example:
6914 this is the same syntax as used in the req config file.
6917 *) Allow certificate extensions to be added to certificate requests. These
6918 are specified in a 'req_extensions' option of the req section of the
6919 config file. They can be printed out with the -text option to req but
6920 are otherwise ignored at present.
6923 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6924 data read consists of only the final block it would not decrypted because
6925 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6926 A misplaced 'break' also meant the decrypted final block might not be
6927 copied until the next read.
6930 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6931 a few extra parameters to the DH structure: these will be useful if
6932 for example we want the value of 'q' or implement X9.42 DH.
6935 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6936 provides hooks that allow the default DSA functions or functions on a
6937 "per key" basis to be replaced. This allows hardware acceleration and
6938 hardware key storage to be handled without major modification to the
6939 library. Also added low level modexp hooks and CRYPTO_EX structure and
6940 associated functions.
6943 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6944 as "read only": it can't be written to and the buffer it points to will
6945 not be freed. Reading from a read only BIO is much more efficient than
6946 a normal memory BIO. This was added because there are several times when
6947 an area of memory needs to be read from a BIO. The previous method was
6948 to create a memory BIO and write the data to it, this results in two
6949 copies of the data and an O(n^2) reading algorithm. There is a new
6950 function BIO_new_mem_buf() which creates a read only memory BIO from
6951 an area of memory. Also modified the PKCS#7 routines to use read only
6955 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6956 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6957 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6958 but a retry condition occured while trying to read the rest.
6961 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6962 NID_pkcs7_encrypted by default: this was wrong since this should almost
6963 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6964 the encrypted data type: this is a more sensible place to put it and it
6965 allows the PKCS#12 code to be tidied up that duplicated this
6969 *) Changed obj_dat.pl script so it takes its input and output files on
6970 the command line. This should avoid shell escape redirection problems
6974 *) Initial support for certificate extension requests, these are included
6975 in things like Xenroll certificate requests. Included functions to allow
6976 extensions to be obtained and added.
6979 *) -crlf option to s_client and s_server for sending newlines as
6980 CRLF (as required by many protocols).
6983 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6985 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6986 [Ralf S. Engelschall]
6988 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6989 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6991 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6995 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6996 DH parameters/keys (q is lost during that conversion, but the resulting
6997 DH parameters contain its length).
6999 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7000 much faster than DH_generate_parameters (which creates parameters
7001 where p = 2*q + 1), and also the smaller q makes DH computations
7002 much more efficient (160-bit exponentiation instead of 1024-bit
7003 exponentiation); so this provides a convenient way to support DHE
7004 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7005 utter importance to use
7006 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7008 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7009 when such DH parameters are used, because otherwise small subgroup
7010 attacks may become possible!
7013 *) Avoid memory leak in i2d_DHparams.
7016 *) Allow the -k option to be used more than once in the enc program:
7017 this allows the same encrypted message to be read by multiple recipients.
7020 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7021 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7022 it will always use the numerical form of the OID, even if it has a short
7026 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7027 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7028 otherwise bn_mod_exp was called. In the case of hardware keys for example
7029 no private key components need be present and it might store extra data
7030 in the RSA structure, which cannot be accessed from bn_mod_exp.
7031 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7032 private key operations.
7035 *) Added support for SPARC Linux.
7038 *) pem_password_cb function type incompatibly changed from
7039 typedef int pem_password_cb(char *buf, int size, int rwflag);
7041 ....(char *buf, int size, int rwflag, void *userdata);
7042 so that applications can pass data to their callbacks:
7043 The PEM[_ASN1]_{read,write}... functions and macros now take an
7044 additional void * argument, which is just handed through whenever
7045 the password callback is called.
7046 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7048 New function SSL_CTX_set_default_passwd_cb_userdata.
7050 Compatibility note: As many C implementations push function arguments
7051 onto the stack in reverse order, the new library version is likely to
7052 interoperate with programs that have been compiled with the old
7053 pem_password_cb definition (PEM_whatever takes some data that
7054 happens to be on the stack as its last argument, and the callback
7055 just ignores this garbage); but there is no guarantee whatsoever that
7058 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7059 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7060 problems not only on Windows, but also on some Unix platforms.
7061 To avoid problematic command lines, these definitions are now in an
7062 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7063 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7066 *) MIPS III/IV assembler module is reimplemented.
7069 *) More DES library cleanups: remove references to srand/rand and
7070 delete an unused file.
7073 *) Add support for the the free Netwide assembler (NASM) under Win32,
7074 since not many people have MASM (ml) and it can be hard to obtain.
7075 This is currently experimental but it seems to work OK and pass all
7076 the tests. Check out INSTALL.W32 for info.
7079 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7080 without temporary keys kept an extra copy of the server key,
7081 and connections with temporary keys did not free everything in case
7085 *) New function RSA_check_key and new openssl rsa option -check
7086 for verifying the consistency of RSA keys.
7087 [Ulf Moeller, Bodo Moeller]
7089 *) Various changes to make Win32 compile work:
7090 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7091 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7092 comparison" warnings.
7093 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7096 *) Add a debugging option to PKCS#5 v2 key generation function: when
7097 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7098 derived keys are printed to stderr.
7101 *) Copy the flags in ASN1_STRING_dup().
7102 [Roman E. Pavlov <pre@mo.msk.ru>]
7104 *) The x509 application mishandled signing requests containing DSA
7105 keys when the signing key was also DSA and the parameters didn't match.
7107 It was supposed to omit the parameters when they matched the signing key:
7108 the verifying software was then supposed to automatically use the CA's
7109 parameters if they were absent from the end user certificate.
7111 Omitting parameters is no longer recommended. The test was also
7112 the wrong way round! This was probably due to unusual behaviour in
7113 EVP_cmp_parameters() which returns 1 if the parameters match.
7114 This meant that parameters were omitted when they *didn't* match and
7115 the certificate was useless. Certificates signed with 'ca' didn't have
7117 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7119 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7120 The interface is as follows:
7121 Applications can use
7122 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7123 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7124 "off" is now the default.
7125 The library internally uses
7126 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7127 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7128 to disable memory-checking temporarily.
7130 Some inconsistent states that previously were possible (and were
7131 even the default) are now avoided.
7133 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7134 with each memory chunk allocated; this is occasionally more helpful
7135 than just having a counter.
7137 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7139 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7143 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7144 which largely parallels "options", but is for changing API behaviour,
7145 whereas "options" are about protocol behaviour.
7146 Initial "mode" flags are:
7148 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7149 a single record has been written.
7150 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7151 retries use the same buffer location.
7152 (But all of the contents must be
7156 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7159 *) Fix problems with no-hmac etc.
7160 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7162 *) New functions RSA_get_default_method(), RSA_set_method() and
7163 RSA_get_method(). These allows replacement of RSA_METHODs without having
7164 to mess around with the internals of an RSA structure.
7167 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7168 Also really enable memory leak checks in openssl.c and in some
7170 [Chad C. Mulligan, Bodo Moeller]
7172 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7173 up the length of negative integers. This has now been simplified to just
7174 store the length when it is first determined and use it later, rather
7175 than trying to keep track of where data is copied and updating it to
7177 [Steve Henson, reported by Brien Wheeler
7178 <bwheeler@authentica-security.com>]
7180 *) Add a new function PKCS7_signatureVerify. This allows the verification
7181 of a PKCS#7 signature but with the signing certificate passed to the
7182 function itself. This contrasts with PKCS7_dataVerify which assumes the
7183 certificate is present in the PKCS#7 structure. This isn't always the
7184 case: certificates can be omitted from a PKCS#7 structure and be
7185 distributed by "out of band" means (such as a certificate database).
7188 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7189 function prototypes in pem.h, also change util/mkdef.pl to add the
7190 necessary function names.
7193 *) mk1mf.pl (used by Windows builds) did not properly read the
7194 options set by Configure in the top level Makefile, and Configure
7195 was not even able to write more than one option correctly.
7196 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7199 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7200 file to be loaded from a BIO or FILE pointer. The BIO version will
7201 for example allow memory BIOs to contain config info.
7204 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7205 Whoever hopes to achieve shared-library compatibility across versions
7206 must use this, not the compile-time macro.
7207 (Exercise 0.9.4: Which is the minimum library version required by
7209 Note: All this applies only to multi-threaded programs, others don't
7213 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7214 through a BIO pair triggered the default case, i.e.
7215 SSLerr(...,SSL_R_UNKNOWN_STATE).
7218 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7219 can use the SSL library even if none of the specific BIOs is
7223 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7224 for the encoded length.
7225 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7227 *) Add initial documentation of the X509V3 functions.
7230 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7231 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7232 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7233 secure PKCS#8 private key format with a high iteration count.
7236 *) Fix determination of Perl interpreter: A perl or perl5
7237 _directory_ in $PATH was also accepted as the interpreter.
7238 [Ralf S. Engelschall]
7240 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7241 wrong with it but it was very old and did things like calling
7242 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7246 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7247 to use the new extension code.
7250 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7251 with macros. This should make it easier to change their form, add extra
7252 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7256 *) Add to configuration table a new entry that can specify an alternative
7257 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7258 according to Mark Crispin <MRC@Panda.COM>.
7262 *) DES CBC did not update the IV. Weird.
7265 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7266 Changing the behaviour of the former might break existing programs --
7267 where IV updating is needed, des_ncbc_encrypt can be used.
7270 *) When bntest is run from "make test" it drives bc to check its
7271 calculations, as well as internally checking them. If an internal check
7272 fails, it needs to cause bc to give a non-zero result or make test carries
7273 on without noticing the failure. Fixed.
7276 *) DES library cleanups.
7279 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7280 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7281 ciphers. NOTE: although the key derivation function has been verified
7282 against some published test vectors it has not been extensively tested
7283 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7287 *) Instead of "mkdir -p", which is not fully portable, use new
7288 Perl script "util/mkdir-p.pl".
7291 *) Rewrite the way password based encryption (PBE) is handled. It used to
7292 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7293 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7294 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7295 the 'parameter' field of the AlgorithmIdentifier is passed to the
7296 underlying key generation function so it must do its own ASN1 parsing.
7297 This has also changed the EVP_PBE_CipherInit() function which now has a
7298 'parameter' argument instead of literal salt and iteration count values
7299 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7302 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7303 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7304 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7305 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7306 value was just used as a "magic string" and not used directly its
7307 value doesn't matter.
7310 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7314 *) "linux-sparc64" configuration (ultrapenguin).
7315 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7316 "linux-sparc" configuration.
7317 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7319 *) config now generates no-xxx options for missing ciphers.
7322 *) Support the EBCDIC character set (work in progress).
7323 File ebcdic.c not yet included because it has a different license.
7324 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7326 *) Support BS2000/OSD-POSIX.
7327 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7329 *) Make callbacks for key generation use void * instead of char *.
7332 *) Make S/MIME samples compile (not yet tested).
7335 *) Additional typesafe stacks.
7338 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7342 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7344 *) New configuration variant "sco5-gcc".
7346 *) Updated some demos.
7347 [Sean O Riordain, Wade Scholine]
7349 *) Add missing BIO_free at exit of pkcs12 application.
7352 *) Fix memory leak in conf.c.
7355 *) Updates for Win32 to assembler version of MD5.
7358 *) Set #! path to perl in apps/der_chop to where we found it
7359 instead of using a fixed path.
7362 *) SHA library changes for irix64-mips4-cc.
7365 *) Improvements for VMS support.
7369 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7371 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7372 This also avoids the problems with SC4.2 and unpatched SC5.
7373 [Andy Polyakov <appro@fy.chalmers.se>]
7375 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7376 These are required because of the typesafe stack would otherwise break
7377 existing code. If old code used a structure member which used to be STACK
7378 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7379 sk_num or sk_value it would produce an error because the num, data members
7380 are not present in STACK_OF. Now it just produces a warning. sk_set
7381 replaces the old method of assigning a value to sk_value
7382 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7383 that does this will no longer work (and should use sk_set instead) but
7384 this could be regarded as a "questionable" behaviour anyway.
7387 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7388 correctly handle encrypted S/MIME data.
7391 *) Change type of various DES function arguments from des_cblock
7392 (which means, in function argument declarations, pointer to char)
7393 to des_cblock * (meaning pointer to array with 8 char elements),
7394 which allows the compiler to do more typechecking; it was like
7395 that back in SSLeay, but with lots of ugly casts.
7397 Introduce new type const_des_cblock.
7400 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7401 problems: find RecipientInfo structure that matches recipient certificate
7402 and initialise the ASN1 structures properly based on passed cipher.
7405 *) Belatedly make the BN tests actually check the results.
7408 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7409 to and from BNs: it was completely broken. New compilation option
7410 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7411 key elements as negative integers.
7414 *) Reorganize and speed up MD5.
7415 [Andy Polyakov <appro@fy.chalmers.se>]
7418 [Richard Levitte <richard@levitte.org>]
7420 *) New option -out to asn1parse to allow the parsed structure to be
7421 output to a file. This is most useful when combined with the -strparse
7422 option to examine the output of things like OCTET STRINGS.
7425 *) Make SSL library a little more fool-proof by not requiring any longer
7426 that SSL_set_{accept,connect}_state be called before
7427 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7428 in many applications because usually everything *appeared* to work as
7429 intended anyway -- now it really works as intended).
7432 *) Move openssl.cnf out of lib/.
7435 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7436 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7437 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7438 [Ralf S. Engelschall]
7440 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7441 handle PKCS#7 enveloped data properly.
7442 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7444 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7445 copying pointers. The cert_st handling is changed by this in
7446 various ways (and thus what used to be known as ctx->default_cert
7447 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7448 any longer when s->cert does not give us what we need).
7449 ssl_cert_instantiate becomes obsolete by this change.
7450 As soon as we've got the new code right (possibly it already is?),
7451 we have solved a couple of bugs of the earlier code where s->cert
7452 was used as if it could not have been shared with other SSL structures.
7454 Note that using the SSL API in certain dirty ways now will result
7455 in different behaviour than observed with earlier library versions:
7456 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7457 does not influence s as it used to.
7459 In order to clean up things more thoroughly, inside SSL_SESSION
7460 we don't use CERT any longer, but a new structure SESS_CERT
7461 that holds per-session data (if available); currently, this is
7462 the peer's certificate chain and, for clients, the server's certificate
7463 and temporary key. CERT holds only those values that can have
7464 meaningful defaults in an SSL_CTX.
7467 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7468 from the internal representation. Various PKCS#7 fixes: remove some
7469 evil casts and set the enc_dig_alg field properly based on the signing
7473 *) Allow PKCS#12 password to be set from the command line or the
7474 environment. Let 'ca' get its config file name from the environment
7475 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7479 *) Allow certificate policies extension to use an IA5STRING for the
7480 organization field. This is contrary to the PKIX definition but
7481 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7485 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7486 without disallowing inline assembler and the like for non-pedantic builds.
7489 *) Support Borland C++ builder.
7490 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7495 *) SHA-1 cleanups and performance enhancements.
7496 [Andy Polyakov <appro@fy.chalmers.se>]
7498 *) Sparc v8plus assembler for the bignum library.
7499 [Andy Polyakov <appro@fy.chalmers.se>]
7501 *) Accept any -xxx and +xxx compiler options in Configure.
7504 *) Update HPUX configuration.
7507 *) Add missing sk_<type>_unshift() function to safestack.h
7508 [Ralf S. Engelschall]
7510 *) New function SSL_CTX_use_certificate_chain_file that sets the
7511 "extra_cert"s in addition to the certificate. (This makes sense
7512 only for "PEM" format files, as chains as a whole are not
7516 *) Support verify_depth from the SSL API.
7517 x509_vfy.c had what can be considered an off-by-one-error:
7518 Its depth (which was not part of the external interface)
7519 was actually counting the number of certificates in a chain;
7520 now it really counts the depth.
7523 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7524 instead of X509err, which often resulted in confusing error
7525 messages since the error codes are not globally unique
7526 (e.g. an alleged error in ssl3_accept when a certificate
7527 didn't match the private key).
7529 *) New function SSL_CTX_set_session_id_context that allows to set a default
7530 value (so that you don't need SSL_set_session_id_context for each
7531 connection using the SSL_CTX).
7534 *) OAEP decoding bug fix.
7537 *) Support INSTALL_PREFIX for package builders, as proposed by
7541 *) New Configure options "threads" and "no-threads". For systems
7542 where the proper compiler options are known (currently Solaris
7543 and Linux), "threads" is the default.
7546 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7549 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7550 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7551 such as /usr/local/bin.
7554 *) "make linux-shared" to build shared libraries.
7555 [Niels Poppe <niels@netbox.org>]
7557 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7560 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7561 extension adding in x509 utility.
7564 *) Remove NOPROTO sections and error code comments.
7567 *) Partial rewrite of the DEF file generator to now parse the ANSI
7571 *) New Configure options --prefix=DIR and --openssldir=DIR.
7574 *) Complete rewrite of the error code script(s). It is all now handled
7575 by one script at the top level which handles error code gathering,
7576 header rewriting and C source file generation. It should be much better
7577 than the old method: it now uses a modified version of Ulf's parser to
7578 read the ANSI prototypes in all header files (thus the old K&R definitions
7579 aren't needed for error creation any more) and do a better job of
7580 translating function codes into names. The old 'ASN1 error code imbedded
7581 in a comment' is no longer necessary and it doesn't use .err files which
7582 have now been deleted. Also the error code call doesn't have to appear all
7583 on one line (which resulted in some large lines...).
7586 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7589 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7590 0 (which usually indicates a closed connection), but continue reading.
7593 *) Fix some race conditions.
7596 *) Add support for CRL distribution points extension. Add Certificate
7597 Policies and CRL distribution points documentation.
7600 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7603 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7604 8 of keying material. Merlin has also confirmed interop with this fix
7605 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7606 [Merlin Hughes <merlin@baltimore.ie>]
7608 *) Fix lots of warnings.
7609 [Richard Levitte <levitte@stacken.kth.se>]
7611 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7612 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7613 [Richard Levitte <levitte@stacken.kth.se>]
7615 *) Fix problems with sizeof(long) == 8.
7616 [Andy Polyakov <appro@fy.chalmers.se>]
7618 *) Change functions to ANSI C.
7621 *) Fix typos in error codes.
7622 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7624 *) Remove defunct assembler files from Configure.
7627 *) SPARC v8 assembler BIGNUM implementation.
7628 [Andy Polyakov <appro@fy.chalmers.se>]
7630 *) Support for Certificate Policies extension: both print and set.
7631 Various additions to support the r2i method this uses.
7634 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7635 return a const string when you are expecting an allocated buffer.
7638 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7639 types DirectoryString and DisplayText.
7642 *) Add code to allow r2i extensions to access the configuration database,
7643 add an LHASH database driver and add several ctx helper functions.
7646 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7647 fail when they extended the size of a BIGNUM.
7650 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7651 support typesafe stack.
7654 *) Fix typo in SSL_[gs]et_options().
7655 [Nils Frostberg <nils@medcom.se>]
7657 *) Delete various functions and files that belonged to the (now obsolete)
7658 old X509V3 handling code.
7661 *) New Configure option "rsaref".
7664 *) Don't auto-generate pem.h.
7667 *) Introduce type-safe ASN.1 SETs.
7670 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7671 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7673 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7674 that links with OpenSSL (well at least cause lots of warnings), but fear
7675 not: the conversion is trivial, and it eliminates loads of evil casts. A
7676 few STACKed things have been converted already. Feel free to convert more.
7677 In the fullness of time, I'll do away with the STACK type altogether.
7680 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7681 specified in <certfile> by updating the entry in the index.txt file.
7682 This way one no longer has to edit the index.txt file manually for
7683 revoking a certificate. The -revoke option does the gory details now.
7684 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7686 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7687 `-text' option at all and this way the `-noout -text' combination was
7688 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7689 [Ralf S. Engelschall]
7691 *) Make sure a corresponding plain text error message exists for the
7692 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7693 verify callback function determined that a certificate was revoked.
7694 [Ralf S. Engelschall]
7696 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7697 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7698 all available cipers including rc5, which was forgotten until now.
7699 In order to let the testing shell script know which algorithms
7700 are available, a new (up to now undocumented) command
7701 "openssl list-cipher-commands" is used.
7704 *) Bugfix: s_client occasionally would sleep in select() when
7705 it should have checked SSL_pending() first.
7708 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7709 the raw DSA values prior to ASN.1 encoding.
7712 *) Tweaks to Configure
7713 [Niels Poppe <niels@netbox.org>]
7715 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7719 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7722 *) New config option to avoid instructions that are illegal on the 80386.
7723 The default code is faster, but requires at least a 486.
7726 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7727 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7728 same as SSL2_VERSION anyway.
7731 *) New "-showcerts" option for s_client.
7734 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7735 application. Various cleanups and fixes.
7738 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7739 modify error routines to work internally. Add error codes and PBE init
7740 to library startup routines.
7743 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7744 packing functions to asn1 and evp. Changed function names and error
7745 codes along the way.
7748 *) PKCS12 integration: and so it begins... First of several patches to
7749 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7750 objects to objects.h
7753 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7754 and display support for Thawte strong extranet extension.
7757 *) Add LinuxPPC support.
7758 [Jeff Dubrule <igor@pobox.org>]
7760 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7761 bn_div_words in alpha.s.
7762 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7764 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7765 OAEP isn't supported when OpenSSL is built with RSAref.
7766 [Ulf Moeller <ulf@fitug.de>]
7768 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7769 so they no longer are missing under -DNOPROTO.
7770 [Soren S. Jorvang <soren@t.dk>]
7773 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7775 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7776 doesn't work when the session is reused. Coming soon!
7779 *) Fix a security hole, that allows sessions to be reused in the wrong
7780 context thus bypassing client cert protection! All software that uses
7781 client certs and session caches in multiple contexts NEEDS PATCHING to
7782 allow session reuse! A fuller solution is in the works.
7783 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7785 *) Some more source tree cleanups (removed obsolete files
7786 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7787 permission on "config" script to be executable) and a fix for the INSTALL
7789 [Ulf Moeller <ulf@fitug.de>]
7791 *) Remove some legacy and erroneous uses of malloc, free instead of
7793 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7795 *) Make rsa_oaep_test return non-zero on error.
7796 [Ulf Moeller <ulf@fitug.de>]
7798 *) Add support for native Solaris shared libraries. Configure
7799 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7800 if someone would make that last step automatic.
7801 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7803 *) ctx_size was not built with the right compiler during "make links". Fixed.
7806 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7807 except NULL ciphers". This means the default cipher list will no longer
7808 enable NULL ciphers. They need to be specifically enabled e.g. with
7809 the string "DEFAULT:eNULL".
7812 *) Fix to RSA private encryption routines: if p < q then it would
7813 occasionally produce an invalid result. This will only happen with
7814 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7817 *) Be less restrictive and allow also `perl util/perlpath.pl
7818 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7819 because this way one can also use an interpreter named `perl5' (which is
7820 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7821 installed as `perl').
7822 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7824 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7825 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7827 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7828 advapi32.lib to Win32 build and change the pem test comparision
7829 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7830 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7831 and crypto/des/ede_cbcm_enc.c.
7834 *) DES quad checksum was broken on big-endian architectures. Fixed.
7837 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7838 Win32 test batch file so it (might) work again. The Win32 test batch file
7839 is horrible: I feel ill....
7842 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7843 in e_os.h. Audit of header files to check ANSI and non ANSI
7844 sections: 10 functions were absent from non ANSI section and not exported
7845 from Windows DLLs. Fixed up libeay.num for new functions.
7848 *) Make `openssl version' output lines consistent.
7849 [Ralf S. Engelschall]
7851 *) Fix Win32 symbol export lists for BIO functions: Added
7852 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7853 to ms/libeay{16,32}.def.
7854 [Ralf S. Engelschall]
7856 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7857 fine under Unix and passes some trivial tests I've now added. But the
7858 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7859 added to make sure no one expects that this stuff really works in the
7860 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7861 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7863 [Ralf S. Engelschall]
7865 *) Fix the generation of two part addresses in perl.
7866 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7868 *) Add config entry for Linux on MIPS.
7869 [John Tobey <jtobey@channel1.com>]
7871 *) Make links whenever Configure is run, unless we are on Windoze.
7874 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7875 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7879 *) Add a useful kludge to allow package maintainers to specify compiler and
7880 other platforms details on the command line without having to patch the
7881 Configure script everytime: One now can use ``perl Configure
7882 <id>:<details>'', i.e. platform ids are allowed to have details appended
7883 to them (seperated by colons). This is treated as there would be a static
7884 pre-configured entry in Configure's %table under key <id> with value
7885 <details> and ``perl Configure <id>'' is called. So, when you want to
7886 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7887 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7888 now, which overrides the FreeBSD-elf entry on-the-fly.
7889 [Ralf S. Engelschall]
7891 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7894 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7895 on the `perl Configure ...' command line. This way one can compile
7896 OpenSSL libraries with Position Independent Code (PIC) which is needed
7897 for linking it into DSOs.
7898 [Ralf S. Engelschall]
7900 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7904 *) Cleaned up the LICENSE document: The official contact for any license
7905 questions now is the OpenSSL core team under openssl-core@openssl.org.
7906 And add a paragraph about the dual-license situation to make sure people
7907 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7908 to the OpenSSL toolkit.
7909 [Ralf S. Engelschall]
7911 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7912 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7913 Additonally cleaned up the `make links' target: Remove unnecessary
7914 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7915 to speed processing and no longer clutter the display with confusing
7916 stuff. Instead only the actually done links are displayed.
7917 [Ralf S. Engelschall]
7919 *) Permit null encryption ciphersuites, used for authentication only. It used
7920 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7921 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7925 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7926 signed attributes when verifying signatures (this would break them),
7927 the detached data encoding was wrong and public keys obtained using
7928 X509_get_pubkey() weren't freed.
7931 *) Add text documentation for the BUFFER functions. Also added a work around
7932 to a Win95 console bug. This was triggered by the password read stuff: the
7933 last character typed gets carried over to the next fread(). If you were
7934 generating a new cert request using 'req' for example then the last
7935 character of the passphrase would be CR which would then enter the first
7939 *) Added the new `Includes OpenSSL Cryptography Software' button as
7940 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7941 button and can be used by applications based on OpenSSL to show the
7942 relationship to the OpenSSL project.
7943 [Ralf S. Engelschall]
7945 *) Remove confusing variables in function signatures in files
7946 ssl/ssl_lib.c and ssl/ssl.h.
7947 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7949 *) Don't install bss_file.c under PREFIX/include/
7950 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7952 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7953 functions that return function pointers and has support for NT specific
7954 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7955 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7956 unsigned to signed types: this was killing the Win32 compile.
7959 *) Add new certificate file to stack functions,
7960 SSL_add_dir_cert_subjects_to_stack() and
7961 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7962 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7963 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7964 This means that Apache-SSL and similar packages don't have to mess around
7965 to add as many CAs as they want to the preferred list.
7968 *) Experiment with doxygen documentation. Currently only partially applied to
7970 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7971 openssl.doxy as the configuration file.
7974 *) Get rid of remaining C++-style comments which strict C compilers hate.
7975 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7977 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7978 compiled in by default: it has problems with large keys.
7981 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7982 DH private keys and/or callback functions which directly correspond to
7983 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7984 is needed for applications which have to configure certificates on a
7985 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7987 For the RSA certificate situation is makes no difference, but
7988 for the DSA certificate situation this fixes the "no shared cipher"
7989 problem where the OpenSSL cipher selection procedure failed because the
7990 temporary keys were not overtaken from the context and the API provided
7991 no way to reconfigure them.
7992 The new functions now let applications reconfigure the stuff and they
7993 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7994 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7995 non-public-API function ssl_cert_instantiate() is used as a helper
7996 function and also to reduce code redundancy inside ssl_rsa.c.
7997 [Ralf S. Engelschall]
7999 *) Move s_server -dcert and -dkey options out of the undocumented feature
8000 area because they are useful for the DSA situation and should be
8001 recognized by the users.
8002 [Ralf S. Engelschall]
8004 *) Fix the cipher decision scheme for export ciphers: the export bits are
8005 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8006 SSL_EXP_MASK. So, the original variable has to be used instead of the
8007 already masked variable.
8008 [Richard Levitte <levitte@stacken.kth.se>]
8010 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8011 [Richard Levitte <levitte@stacken.kth.se>]
8013 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8014 from `int' to `unsigned int' because it's a length and initialized by
8015 EVP_DigestFinal() which expects an `unsigned int *'.
8016 [Richard Levitte <levitte@stacken.kth.se>]
8018 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8019 script. Instead use the usual Shell->Perl transition trick.
8020 [Ralf S. Engelschall]
8022 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8023 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8024 -noout -modulus' as it's already the case for `openssl rsa -noout
8025 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8026 currently the public key is printed (a decision which was already done by
8027 `openssl dsa -modulus' in the past) which serves a similar purpose.
8028 Additionally the NO_RSA no longer completely removes the whole -modulus
8029 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8031 [Ralf S. Engelschall]
8033 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8034 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8035 [Arne Ansper <arne@ats.cyber.ee>]
8037 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8038 to be added. Now both 'req' and 'ca' can use new objects defined in the
8042 *) Add cool BIO that does syslog (or event log on NT).
8043 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8045 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8046 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8047 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8048 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8051 *) Add preliminary config info for new extension code.
8054 *) Make RSA_NO_PADDING really use no padding.
8055 [Ulf Moeller <ulf@fitug.de>]
8057 *) Generate errors when private/public key check is done.
8060 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8061 for some CRL extensions and new objects added.
8064 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8065 key usage extension and fuller support for authority key id.
8068 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8069 padding method for RSA, which is recommended for new applications in PKCS
8070 #1 v2.0 (RFC 2437, October 1998).
8071 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8072 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8073 against Bleichbacher's attack on RSA.
8074 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8077 *) Updates to the new SSL compression code
8078 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8080 *) Fix so that the version number in the master secret, when passed
8081 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8082 (because the server will not accept higher), that the version number
8083 is 0x03,0x01, not 0x03,0x00
8084 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8086 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8087 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8088 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8091 *) Support for RAW extensions where an arbitrary extension can be
8092 created by including its DER encoding. See apps/openssl.cnf for
8096 *) Make sure latest Perl versions don't interpret some generated C array
8097 code as Perl array code in the crypto/err/err_genc.pl script.
8098 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8100 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8101 not many people have the assembler. Various Win32 compilation fixes and
8102 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8106 *) Modify configure script 'Configure' to automatically create crypto/date.h
8107 file under Win32 and also build pem.h from pem.org. New script
8108 util/mkfiles.pl to create the MINFO file on environments that can't do a
8109 'make files': perl util/mkfiles.pl >MINFO should work.
8112 *) Major rework of DES function declarations, in the pursuit of correctness
8113 and purity. As a result, many evil casts evaporated, and some weirdness,
8114 too. You may find this causes warnings in your code. Zapping your evil
8115 casts will probably fix them. Mostly.
8118 *) Fix for a typo in asn1.h. Bug fix to object creation script
8119 obj_dat.pl. It considered a zero in an object definition to mean
8120 "end of object": none of the objects in objects.h have any zeros
8121 so it wasn't spotted.
8122 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8124 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8125 Masking (CBCM). In the absence of test vectors, the best I have been able
8126 to do is check that the decrypt undoes the encrypt, so far. Send me test
8127 vectors if you have them.
8130 *) Correct calculation of key length for export ciphers (too much space was
8131 allocated for null ciphers). This has not been tested!
8134 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8135 message is now correct (it understands "crypto" and "ssl" on its
8136 command line). There is also now an "update" option. This will update
8137 the util/ssleay.num and util/libeay.num files with any new functions.
8139 perl util/mkdef.pl crypto ssl update
8140 it will update them.
8143 *) Overhauled the Perl interface (perl/*):
8144 - ported BN stuff to OpenSSL's different BN library
8145 - made the perl/ source tree CVS-aware
8146 - renamed the package from SSLeay to OpenSSL (the files still contain
8147 their history because I've copied them in the repository)
8148 - removed obsolete files (the test scripts will be replaced
8149 by better Test::Harness variants in the future)
8150 [Ralf S. Engelschall]
8152 *) First cut for a very conservative source tree cleanup:
8153 1. merge various obsolete readme texts into doc/ssleay.txt
8154 where we collect the old documents and readme texts.
8155 2. remove the first part of files where I'm already sure that we no
8156 longer need them because of three reasons: either they are just temporary
8157 files which were left by Eric or they are preserved original files where
8158 I've verified that the diff is also available in the CVS via "cvs diff
8159 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8160 the crypto/md/ stuff).
8161 [Ralf S. Engelschall]
8163 *) More extension code. Incomplete support for subject and issuer alt
8164 name, issuer and authority key id. Change the i2v function parameters
8165 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8166 what that's for :-) Fix to ASN1 macro which messed up
8167 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8170 *) Preliminary support for ENUMERATED type. This is largely copied from the
8174 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8175 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8177 *) Make sure `make rehash' target really finds the `openssl' program.
8178 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8180 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8181 like to hear about it if this slows down other processors.
8184 *) Add CygWin32 platform information to Configure script.
8185 [Alan Batie <batie@aahz.jf.intel.com>]
8187 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8188 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8190 *) New program nseq to manipulate netscape certificate sequences
8193 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8197 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8198 but the BN code had some problems that would cause failures when
8199 doing certificate verification and some other functions.
8200 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8202 *) Add ASN1 and PEM code to support netscape certificate sequences.
8205 *) Add ASN1 and PEM code to support netscape certificate sequences.
8208 *) Add several PKIX and private extended key usage OIDs.
8211 *) Modify the 'ca' program to handle the new extension code. Modify
8212 openssl.cnf for new extension format, add comments.
8215 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8216 and add a sample to openssl.cnf so req -x509 now adds appropriate
8220 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8221 error code, add initial support to X509_print() and x509 application.
8224 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8225 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8226 stuff is currently isolated and isn't even compiled yet.
8229 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8230 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8231 Removed the versions check from X509 routines when loading extensions:
8232 this allows certain broken certificates that don't set the version
8233 properly to be processed.
8236 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8237 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8238 can still be regenerated with "make depend".
8241 *) Spelling mistake in C version of CAST-128.
8242 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8244 *) Changes to the error generation code. The perl script err-code.pl
8245 now reads in the old error codes and retains the old numbers, only
8246 adding new ones if necessary. It also only changes the .err files if new
8247 codes are added. The makefiles have been modified to only insert errors
8248 when needed (to avoid needlessly modifying header files). This is done
8249 by only inserting errors if the .err file is newer than the auto generated
8250 C file. To rebuild all the error codes from scratch (the old behaviour)
8251 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8252 or delete all the .err files.
8255 *) CAST-128 was incorrectly implemented for short keys. The C version has
8256 been fixed, but is untested. The assembler versions are also fixed, but
8257 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8258 to regenerate it if needed.
8259 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8260 Hagino <itojun@kame.net>]
8262 *) File was opened incorrectly in randfile.c.
8263 [Ulf Möller <ulf@fitug.de>]
8265 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8266 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8267 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8268 al: it's just almost always a UTCTime. Note this patch adds new error
8269 codes so do a "make errors" if there are problems.
8272 *) Correct Linux 1 recognition in config.
8273 [Ulf Möller <ulf@fitug.de>]
8275 *) Remove pointless MD5 hash when using DSA keys in ca.
8276 [Anonymous <nobody@replay.com>]
8278 *) Generate an error if given an empty string as a cert directory. Also
8279 generate an error if handed NULL (previously returned 0 to indicate an
8280 error, but didn't set one).
8281 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8283 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8286 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8287 parameters. This was causing a warning which killed off the Win32 compile.
8290 *) Remove C++ style comments from crypto/bn/bn_local.h.
8291 [Neil Costigan <neil.costigan@celocom.com>]
8293 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8294 based on a text string, looking up short and long names and finally
8295 "dot" format. The "dot" format stuff didn't work. Added new function
8296 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8297 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8298 OID is not part of the table.
8301 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8302 X509_LOOKUP_by_alias().
8305 *) Sort openssl functions by name.
8308 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8309 encryption from sample DSA keys (in case anyone is interested the password
8313 *) Make _all_ *_free functions accept a NULL pointer.
8314 [Frans Heymans <fheymans@isaserver.be>]
8316 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8318 [Anonymous <nobody@replay.com>]
8320 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8321 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8323 *) Don't blow it for numeric -newkey arguments to apps/req.
8324 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8326 *) Temp key "for export" tests were wrong in s3_srvr.c.
8327 [Anonymous <nobody@replay.com>]
8329 *) Add prototype for temp key callback functions
8330 SSL_CTX_set_tmp_{rsa,dh}_callback().
8333 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8334 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8337 *) X509_name_add_entry() freed the wrong thing after an error.
8338 [Arne Ansper <arne@ats.cyber.ee>]
8340 *) rsa_eay.c would attempt to free a NULL context.
8341 [Arne Ansper <arne@ats.cyber.ee>]
8343 *) BIO_s_socket() had a broken should_retry() on Windoze.
8344 [Arne Ansper <arne@ats.cyber.ee>]
8346 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8347 [Arne Ansper <arne@ats.cyber.ee>]
8349 *) Make sure the already existing X509_STORE->depth variable is initialized
8350 in X509_STORE_new(), but document the fact that this variable is still
8351 unused in the certificate verification process.
8352 [Ralf S. Engelschall]
8354 *) Fix the various library and apps files to free up pkeys obtained from
8355 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8358 *) Fix reference counting in X509_PUBKEY_get(). This makes
8359 demos/maurice/example2.c work, amongst others, probably.
8360 [Steve Henson and Ben Laurie]
8362 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8363 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8364 are no longer created. This way we have a single and consistent command
8365 line interface `openssl <command>', similar to `cvs <command>'.
8366 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8368 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8369 BIT STRING wrapper always have zero unused bits.
8372 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8375 *) Make the top-level INSTALL documentation easier to understand.
8378 *) Makefiles updated to exit if an error occurs in a sub-directory
8379 make (including if user presses ^C) [Paul Sutton]
8381 *) Make Montgomery context stuff explicit in RSA data structure.
8384 *) Fix build order of pem and err to allow for generated pem.h.
8387 *) Fix renumbering bug in X509_NAME_delete_entry().
8390 *) Enhanced the err-ins.pl script so it makes the error library number
8391 global and can add a library name. This is needed for external ASN1 and
8392 other error libraries.
8395 *) Fixed sk_insert which never worked properly.
8398 *) Fix ASN1 macros so they can handle indefinite length construted
8399 EXPLICIT tags. Some non standard certificates use these: they can now
8403 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8404 into a single doc/ssleay.txt bundle. This way the information is still
8405 preserved but no longer messes up this directory. Now it's new room for
8406 the new set of documenation files.
8407 [Ralf S. Engelschall]
8409 *) SETs were incorrectly DER encoded. This was a major pain, because they
8410 shared code with SEQUENCEs, which aren't coded the same. This means that
8411 almost everything to do with SETs or SEQUENCEs has either changed name or
8412 number of arguments.
8413 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8415 *) Fix test data to work with the above.
8418 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8419 was already fixed by Eric for 0.9.1 it seems.
8420 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8422 *) Autodetect FreeBSD3.
8425 *) Fix various bugs in Configure. This affects the following platforms:
8429 unixware-2.0-pentium
8433 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8434 before they are needed.
8437 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8441 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8443 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8444 changed SSLeay to OpenSSL in version strings.
8445 [Ralf S. Engelschall]
8447 *) Some fixups to the top-level documents.
8450 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8451 because the symlink to include/ was missing.
8452 [Ralf S. Engelschall]
8454 *) Incorporated the popular no-RSA/DSA-only patches
8455 which allow to compile a RSA-free SSLeay.
8456 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8458 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8459 when "ssleay" is still not found.
8460 [Ralf S. Engelschall]
8462 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8463 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8465 *) Updated the README file.
8466 [Ralf S. Engelschall]
8468 *) Added various .cvsignore files in the CVS repository subdirs
8469 to make a "cvs update" really silent.
8470 [Ralf S. Engelschall]
8472 *) Recompiled the error-definition header files and added
8473 missing symbols to the Win32 linker tables.
8474 [Ralf S. Engelschall]
8476 *) Cleaned up the top-level documents;
8477 o new files: CHANGES and LICENSE
8478 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8479 o merged COPYRIGHT into LICENSE
8480 o removed obsolete TODO file
8481 o renamed MICROSOFT to INSTALL.W32
8482 [Ralf S. Engelschall]
8484 *) Removed dummy files from the 0.9.1b source tree:
8485 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8486 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8487 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8488 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8489 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8490 [Ralf S. Engelschall]
8492 *) Added various platform portability fixes.
8495 *) The Genesis of the OpenSSL rpject:
8496 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8497 Young and Tim J. Hudson created while they were working for C2Net until
8499 [The OpenSSL Project]
8502 Changes between 0.9.0b and 0.9.1b [not released]
8504 *) Updated a few CA certificates under certs/
8507 *) Changed some BIGNUM api stuff.
8510 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8511 DGUX x86, Linux Alpha, etc.
8514 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8515 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8519 *) Add -strparse option to asn1pars program which parses nested
8521 [Dr Stephen Henson <shenson@bigfoot.com>]
8523 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8526 *) DSA fix for "ca" program.
8529 *) Added "-genkey" option to "dsaparam" program.
8532 *) Added RIPE MD160 (rmd160) message digest.
8535 *) Added -a (all) option to "ssleay version" command.
8538 *) Added PLATFORM define which is the id given to Configure.
8541 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8544 *) Extended the ASN.1 parser routines.
8547 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8550 *) Added a BN_CTX to the BN library.
8553 *) Fixed the weak key values in DES library
8556 *) Changed API in EVP library for cipher aliases.
8559 *) Added support for RC2/64bit cipher.
8562 *) Converted the lhash library to the crypto/mem.c functions.
8565 *) Added more recognized ASN.1 object ids.
8568 *) Added more RSA padding checks for SSL/TLS.
8571 *) Added BIO proxy/filter functionality.
8574 *) Added extra_certs to SSL_CTX which can be used
8575 send extra CA certificates to the client in the CA cert chain sending
8576 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8579 *) Now Fortezza is denied in the authentication phase because
8580 this is key exchange mechanism is not supported by SSLeay at all.
8583 *) Additional PKCS1 checks.
8586 *) Support the string "TLSv1" for all TLS v1 ciphers.
8589 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8590 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8593 *) Fixed a few memory leaks.
8596 *) Fixed various code and comment typos.
8599 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8600 bytes sent in the client random.
8601 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob