5 Changes between 0.9.8n and 0.9.8o [xx XXX xxxx]
7 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
8 common in certificates and some applications which only call
9 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
13 Reduce copying into .apps and .test in makevms.com
14 Don't try to use blank CA certificate in CA.com
15 Allow use of C files from original directories in maketests.com
16 [Steven M. Schweda" <sms@antinode.info>]
18 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
20 *) When rejecting SSL/TLS records due to an incorrect version number, never
21 update s->server with a new major version number. As of
22 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
23 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
24 the previous behavior could result in a read attempt at NULL when
25 receiving specific incorrect SSL/TLS records once record payload
26 protection is active. (CVE-2010-0740)
27 [Bodo Moeller, Adam Langley <agl@chromium.org>]
29 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
30 could be crashed if the relevant tables were not present (e.g. chrooted).
31 [Tomas Hoger <thoger@redhat.com>]
33 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
35 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
36 [Martin Olsson, Neel Mehta]
38 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
39 accommodate for stack sorting, always a write lock!).
42 *) On some versions of WIN32 Heap32Next is very slow. This can cause
43 excessive delays in the RAND_poll(): over a minute. As a workaround
44 include a time check in the inner Heap32Next loop too.
47 *) The code that handled flushing of data in SSL/TLS originally used the
48 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
49 the problem outlined in PR#1949. The fix suggested there however can
50 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
51 of Apache). So instead simplify the code to flush unconditionally.
52 This should be fine since flushing with no data to flush is a no op.
55 *) Handle TLS versions 2.0 and later properly and correctly use the
56 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
57 off ancient servers have a habit of sticking around for a while...
60 *) Modify compression code so it frees up structures without using the
61 ex_data callbacks. This works around a problem where some applications
62 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
63 restarting) then use compression (e.g. SSL with compression) later.
64 This results in significant per-connection memory leaks and
65 has caused some security issues including CVE-2008-1678 and
69 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
70 change when encrypting or decrypting.
73 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
74 connect and renegotiate with servers which do not support RI.
75 Until RI is more widely deployed this option is enabled by default.
78 *) Add "missing" ssl ctrls to clear options and mode.
81 *) If client attempts to renegotiate and doesn't support RI respond with
82 a no_renegotiation alert as required by RFC5746. Some renegotiating
83 TLS clients will continue a connection gracefully when they receive
84 the alert. Unfortunately OpenSSL mishandled this alert and would hang
85 waiting for a server hello which it will never receive. Now we treat a
86 received no_renegotiation alert as a fatal error. This is because
87 applications requesting a renegotiation might well expect it to succeed
88 and would have no code in place to handle the server denying it so the
89 only safe thing to do is to terminate the connection.
92 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
93 peer supports secure renegotiation and 0 otherwise. Print out peer
94 renegotiation support in s_client/s_server.
97 *) Replace the highly broken and deprecated SPKAC certification method with
98 the updated NID creation version. This should correctly handle UTF8.
101 *) Implement RFC5746. Re-enable renegotiation but require the extension
102 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
103 turns out to be a bad idea. It has been replaced by
104 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
105 SSL_CTX_set_options(). This is really not recommended unless you
106 know what you are doing.
107 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
109 *) Fixes to stateless session resumption handling. Use initial_ctx when
110 issuing and attempting to decrypt tickets in case it has changed during
111 servername handling. Use a non-zero length session ID when attempting
112 stateless session resumption: this makes it possible to determine if
113 a resumption has occurred immediately after receiving server hello
114 (several places in OpenSSL subtly assume this) instead of later in
118 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
119 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
120 fixes for a few places where the return code is not checked
122 [Julia Lawall <julia@diku.dk>]
124 *) Add --strict-warnings option to Configure script to include devteam
125 warnings in other configurations.
128 *) Add support for --libdir option and LIBDIR variable in makefiles. This
129 makes it possible to install openssl libraries in locations which
130 have names other than "lib", for example "/usr/lib64" which some
132 [Steve Henson, based on patch from Jeremy Utley]
134 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
135 X690 8.9.12 and can produce some misleading textual output of OIDs.
136 [Steve Henson, reported by Dan Kaminsky]
138 *) Delete MD2 from algorithm tables. This follows the recommendation in
139 several standards that it is not used in new applications due to
140 several cryptographic weaknesses. For binary compatibility reasons
141 the MD2 API is still compiled in by default.
144 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
148 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
149 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
151 [Guenter <lists@gknw.net>]
153 *) Fix the server certificate chain building code to use X509_verify_cert(),
154 it used to have an ad-hoc builder which was unable to cope with anything
155 other than a simple chain.
156 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
158 *) Don't check self signed certificate signatures in X509_verify_cert()
159 by default (a flag can override this): it just wastes time without
160 adding any security. As a useful side effect self signed root CAs
161 with non-FIPS digests are now usable in FIPS mode.
164 *) In dtls1_process_out_of_seq_message() the check if the current message
165 is already buffered was missing. For every new message was memory
166 allocated, allowing an attacker to perform an denial of service attack
167 with sending out of seq handshake messages until there is no memory
168 left. Additionally every future messege was buffered, even if the
169 sequence number made no sense and would be part of another handshake.
170 So only messages with sequence numbers less than 10 in advance will be
171 buffered. (CVE-2009-1378)
172 [Robin Seggelmann, discovered by Daniel Mentz]
174 *) Records are buffered if they arrive with a future epoch to be
175 processed after finishing the corresponding handshake. There is
176 currently no limitation to this buffer allowing an attacker to perform
177 a DOS attack with sending records with future epochs until there is no
178 memory left. This patch adds the pqueue_size() function to detemine
179 the size of a buffer and limits the record buffer to 100 entries.
181 [Robin Seggelmann, discovered by Daniel Mentz]
183 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
184 parent structure is freed. (CVE-2009-1379)
187 *) Handle non-blocking I/O properly in SSL_shutdown() call.
188 [Darryl Miles <darryl-mailinglists@netbauds.net>]
191 [Ilya O. <vrghost@gmail.com>]
193 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
195 *) Disable renegotiation completely - this fixes a severe security
196 problem (CVE-2009-3555) at the cost of breaking all
197 renegotiation. Renegotiation can be re-enabled by setting
198 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
199 run-time. This is really not recommended unless you know what
203 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
205 *) Don't set val to NULL when freeing up structures, it is freed up by
206 underlying code. If sizeof(void *) > sizeof(long) this can result in
207 zeroing past the valid field. (CVE-2009-0789)
208 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
210 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
211 checked correctly. This would allow some invalid signed attributes to
212 appear to verify correctly. (CVE-2009-0591)
213 [Ivan Nestlerode <inestlerode@us.ibm.com>]
215 *) Reject UniversalString and BMPString types with invalid lengths. This
216 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
217 a legal length. (CVE-2009-0590)
220 *) Set S/MIME signing as the default purpose rather than setting it
221 unconditionally. This allows applications to override it at the store
225 *) Permit restricted recursion of ASN1 strings. This is needed in practice
226 to handle some structures.
229 *) Improve efficiency of mem_gets: don't search whole buffer each time
231 [Jeremy Shapiro <jnshapir@us.ibm.com>]
233 *) New -hex option for openssl rand.
236 *) Print out UTF8String and NumericString when parsing ASN1.
239 *) Support NumericString type for name components.
242 *) Allow CC in the environment to override the automatically chosen
243 compiler. Note that nothing is done to ensure flags work with the
247 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
249 *) Properly check EVP_VerifyFinal() and similar return values
251 [Ben Laurie, Bodo Moeller, Google Security Team]
253 *) Enable TLS extensions by default.
256 *) Allow the CHIL engine to be loaded, whether the application is
257 multithreaded or not. (This does not release the developer from the
258 obligation to set up the dynamic locking callbacks.)
259 [Sander Temme <sander@temme.net>]
261 *) Use correct exit code if there is an error in dgst command.
262 [Steve Henson; problem pointed out by Roland Dirlewanger]
264 *) Tweak Configure so that you need to say "experimental-jpake" to enable
265 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
268 *) Add experimental JPAKE support, including demo authentication in
269 s_client and s_server.
272 *) Set the comparison function in v3_addr_canonize().
273 [Rob Austein <sra@hactrn.net>]
275 *) Add support for XMPP STARTTLS in s_client.
276 [Philip Paeps <philip@freebsd.org>]
278 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
279 to ensure that even with this option, only ciphersuites in the
280 server's preference list will be accepted. (Note that the option
281 applies only when resuming a session, so the earlier behavior was
282 just about the algorithm choice for symmetric cryptography.)
285 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
287 *) Fix NULL pointer dereference if a DTLS server received
288 ChangeCipherSpec as first record (CVE-2009-1386).
291 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
292 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
295 *) The fix in 0.9.8c that supposedly got rid of unsafe
296 double-checked locking was incomplete for RSA blinding,
297 addressing just one layer of what turns out to have been
298 doubly unsafe triple-checked locking.
300 So now fix this for real by retiring the MONT_HELPER macro
301 in crypto/rsa/rsa_eay.c.
303 [Bodo Moeller; problem pointed out by Marius Schilder]
305 *) Various precautionary measures:
307 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
309 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
310 (NB: This would require knowledge of the secret session ticket key
311 to exploit, in which case you'd be SOL either way.)
313 - Change bn_nist.c so that it will properly handle input BIGNUMs
314 outside the expected range.
316 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
319 [Neel Mehta, Bodo Moeller]
321 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
322 the load fails. Useful for distros.
323 [Ben Laurie and the FreeBSD team]
325 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
328 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
331 *) Expand ENGINE to support engine supplied SSL client certificate functions.
333 This work was sponsored by Logica.
336 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
337 keystores. Support for SSL/TLS client authentication too.
338 Not compiled unless enable-capieng specified to Configure.
340 This work was sponsored by Logica.
343 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
344 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
345 attribute creation routines such as certifcate requests and PKCS#12
349 Changes between 0.9.8g and 0.9.8h [28 May 2008]
351 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
352 handshake which could lead to a cilent crash as found using the
353 Codenomicon TLS test suite (CVE-2008-1672)
354 [Steve Henson, Mark Cox]
356 *) Fix double free in TLS server name extensions which could lead to
357 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
360 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
362 Clear the error queue to ensure that error entries left from
363 older function calls do not interfere with the correct operation.
364 [Lutz Jaenicke, Erik de Castro Lopo]
366 *) Remove root CA certificates of commercial CAs:
368 The OpenSSL project does not recommend any specific CA and does not
369 have any policy with respect to including or excluding any CA.
370 Therefore it does not make any sense to ship an arbitrary selection
371 of root CA certificates with the OpenSSL software.
374 *) RSA OAEP patches to fix two separate invalid memory reads.
375 The first one involves inputs when 'lzero' is greater than
376 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
377 before the beginning of from). The second one involves inputs where
378 the 'db' section contains nothing but zeroes (there is a one-byte
379 invalid read after the end of 'db').
380 [Ivan Nestlerode <inestlerode@us.ibm.com>]
382 *) Partial backport from 0.9.9-dev:
384 Introduce bn_mul_mont (dedicated Montgomery multiplication
385 procedure) as a candidate for BIGNUM assembler implementation.
386 While 0.9.9-dev uses assembler for various architectures, only
387 x86_64 is available by default here in the 0.9.8 branch, and
388 32-bit x86 is available through a compile-time setting.
390 To try the 32-bit x86 assembler implementation, use Configure
391 option "enable-montasm" (which exists only for this backport).
393 As "enable-montasm" for 32-bit x86 disclaims code stability
394 anyway, in this constellation we activate additional code
395 backported from 0.9.9-dev for further performance improvements,
396 namely BN_from_montgomery_word. (To enable this otherwise,
397 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
399 [Andy Polyakov (backport partially by Bodo Moeller)]
401 *) Add TLS session ticket callback. This allows an application to set
402 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
403 values. This is useful for key rollover for example where several key
404 sets may exist with different names.
407 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
408 This was broken until now in 0.9.8 releases, such that the only way
409 a registered ENGINE could be used (assuming it initialises
410 successfully on the host) was to explicitly set it as the default
411 for the relevant algorithms. This is in contradiction with 0.9.7
412 behaviour and the documentation. With this fix, when an ENGINE is
413 registered into a given algorithm's table of implementations, the
414 'uptodate' flag is reset so that auto-discovery will be used next
415 time a new context for that algorithm attempts to select an
417 [Ian Lister (tweaked by Geoff Thorpe)]
419 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
420 implemention in the following ways:
422 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
425 Lack of BER streaming support means one pass streaming processing is
426 only supported if data is detached: setting the streaming flag is
427 ignored for embedded content.
429 CMS support is disabled by default and must be explicitly enabled
430 with the enable-cms configuration option.
433 *) Update the GMP engine glue to do direct copies between BIGNUM and
434 mpz_t when openssl and GMP use the same limb size. Otherwise the
435 existing "conversion via a text string export" trick is still used.
436 [Paul Sheer <paulsheer@gmail.com>]
438 *) Zlib compression BIO. This is a filter BIO which compressed and
439 uncompresses any data passed through it.
442 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
443 RFC3394 compatible AES key wrapping.
446 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
447 sets string data without copying. X509_ALGOR_set0() and
448 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
449 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
450 from an X509_ATTRIBUTE structure optionally checking it occurs only
451 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
455 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
456 to get the expected BN_FLG_CONSTTIME behavior.
457 [Bodo Moeller (Google)]
461 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
462 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
463 - added some more tests to do_tests.pl
464 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
465 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
466 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
467 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
468 - various changes to netware.pl to enable gcc-cross builds on Win32
470 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
471 - various changes to fix missing prototype warnings
472 - fixed x86nasm.pl to create correct asm files for NASM COFF output
473 - added AES, WHIRLPOOL and CPUID assembler code to build files
474 - added missing AES assembler make rules to mk1mf.pl
475 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
476 [Guenter Knauf <eflash@gmx.net>]
478 *) Implement certificate status request TLS extension defined in RFC3546.
479 A client can set the appropriate parameters and receive the encoded
480 OCSP response via a callback. A server can query the supplied parameters
481 and set the encoded OCSP response in the callback. Add simplified examples
482 to s_client and s_server.
485 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
488 + Binary incompatibility of ssl_ctx_st structure
489 + DTLS interoperation with non-compliant servers
490 + Don't call get_session_cb() without proposed session
491 + Fix ia64 assembler code
492 [Andy Polyakov, Steve Henson]
494 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
496 *) DTLS Handshake overhaul. There were longstanding issues with
497 OpenSSL DTLS implementation, which were making it impossible for
498 RFC 4347 compliant client to communicate with OpenSSL server.
499 Unfortunately just fixing these incompatibilities would "cut off"
500 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
501 server keeps tolerating non RFC compliant syntax. The opposite is
502 not true, 0.9.8f client can not communicate with earlier server.
503 This update even addresses CVE-2007-4995.
506 *) Changes to avoid need for function casts in OpenSSL: some compilers
507 (gcc 4.2 and later) reject their use.
508 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
511 *) Add RFC4507 support to OpenSSL. This includes the corrections in
512 RFC4507bis. The encrypted ticket format is an encrypted encoded
513 SSL_SESSION structure, that way new session features are automatically
516 If a client application caches session in an SSL_SESSION structure
517 support is transparent because tickets are now stored in the encoded
520 The SSL_CTX structure automatically generates keys for ticket
521 protection in servers so again support should be possible
522 with no application modification.
524 If a client or server wishes to disable RFC4507 support then the option
525 SSL_OP_NO_TICKET can be set.
527 Add a TLS extension debugging callback to allow the contents of any client
528 or server extensions to be examined.
530 This work was sponsored by Google.
533 *) Add initial support for TLS extensions, specifically for the server_name
534 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
535 have new members for a host name. The SSL data structure has an
536 additional member SSL_CTX *initial_ctx so that new sessions can be
537 stored in that context to allow for session resumption, even after the
538 SSL has been switched to a new SSL_CTX in reaction to a client's
539 server_name extension.
541 New functions (subject to change):
544 SSL_get_servername_type()
547 New CTRL codes and macros (subject to change):
549 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
550 - SSL_CTX_set_tlsext_servername_callback()
551 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
552 - SSL_CTX_set_tlsext_servername_arg()
553 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
555 openssl s_client has a new '-servername ...' option.
557 openssl s_server has new options '-servername_host ...', '-cert2 ...',
558 '-key2 ...', '-servername_fatal' (subject to change). This allows
559 testing the HostName extension for a specific single host name ('-cert'
560 and '-key' remain fallbacks for handshakes without HostName
561 negotiation). If the unrecogninzed_name alert has to be sent, this by
562 default is a warning; it becomes fatal with the '-servername_fatal'
565 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
567 *) Add AES and SSE2 assembly language support to VC++ build.
570 *) Mitigate attack on final subtraction in Montgomery reduction.
573 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
574 (which previously caused an internal error).
577 *) Squeeze another 10% out of IGE mode when in != out.
580 *) AES IGE mode speedup.
581 [Dean Gaudet (Google)]
583 *) Add the Korean symmetric 128-bit cipher SEED (see
584 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
585 add SEED ciphersuites from RFC 4162:
587 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
588 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
589 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
590 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
592 To minimize changes between patchlevels in the OpenSSL 0.9.8
593 series, SEED remains excluded from compilation unless OpenSSL
594 is configured with 'enable-seed'.
597 *) Mitigate branch prediction attacks, which can be practical if a
598 single processor is shared, allowing a spy process to extract
599 information. For detailed background information, see
600 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
601 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
602 and Necessary Software Countermeasures"). The core of the change
603 are new versions BN_div_no_branch() and
604 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
605 respectively, which are slower, but avoid the security-relevant
606 conditional branches. These are automatically called by BN_div()
607 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
608 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
609 remove a conditional branch.
611 BN_FLG_CONSTTIME is the new name for the previous
612 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
613 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
614 in the exponent causes BN_mod_exp_mont() to use the alternative
615 implementation in BN_mod_exp_mont_consttime().) The old name
616 remains as a deprecated alias.
618 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
619 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
620 constant-time implementations for more than just exponentiation.
621 Here too the old name is kept as a deprecated alias.
623 BN_BLINDING_new() will now use BN_dup() for the modulus so that
624 the BN_BLINDING structure gets an independent copy of the
625 modulus. This means that the previous "BIGNUM *m" argument to
626 BN_BLINDING_new() and to BN_BLINDING_create_param() now
627 essentially becomes "const BIGNUM *m", although we can't actually
628 change this in the header file before 0.9.9. It allows
629 RSA_setup_blinding() to use BN_with_flags() on the modulus to
630 enable BN_FLG_CONSTTIME.
632 [Matthew D Wood (Intel Corp)]
634 *) In the SSL/TLS server implementation, be strict about session ID
635 context matching (which matters if an application uses a single
636 external cache for different purposes). Previously,
637 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
638 set. This did ensure strict client verification, but meant that,
639 with applications using a single external cache for quite
640 different requirements, clients could circumvent ciphersuite
641 restrictions for a given session ID context by starting a session
642 in a different context.
645 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
646 a ciphersuite string such as "DEFAULT:RSA" cannot enable
647 authentication-only ciphersuites.
650 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
651 not complete and could lead to a possible single byte overflow
652 (CVE-2007-5135) [Ben Laurie]
654 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
656 *) Since AES128 and AES256 (and similarly Camellia128 and
657 Camellia256) share a single mask bit in the logic of
658 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
659 kludge to work properly if AES128 is available and AES256 isn't
660 (or if Camellia128 is available and Camellia256 isn't).
663 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
664 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
665 When a point or a seed is encoded in a BIT STRING, we need to
666 prevent the removal of trailing zero bits to get the proper DER
667 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
668 of a NamedBitList, for which trailing 0 bits need to be removed.)
671 *) Have SSL/TLS server implementation tolerate "mismatched" record
672 protocol version while receiving ClientHello even if the
673 ClientHello is fragmented. (The server can't insist on the
674 particular protocol version it has chosen before the ServerHello
675 message has informed the client about his choice.)
678 *) Add RFC 3779 support.
679 [Rob Austein for ARIN, Ben Laurie]
681 *) Load error codes if they are not already present instead of using a
682 static variable. This allows them to be cleanly unloaded and reloaded.
683 Improve header file function name parsing.
686 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
687 or CAPABILITY handshake as required by RFCs.
690 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
692 *) Introduce limits to prevent malicious keys being able to
693 cause a denial of service. (CVE-2006-2940)
694 [Steve Henson, Bodo Moeller]
696 *) Fix ASN.1 parsing of certain invalid structures that can result
697 in a denial of service. (CVE-2006-2937) [Steve Henson]
699 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
700 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
702 *) Fix SSL client code which could crash if connecting to a
703 malicious SSLv2 server. (CVE-2006-4343)
704 [Tavis Ormandy and Will Drewry, Google Security Team]
706 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
707 match only those. Before that, "AES256-SHA" would be interpreted
708 as a pattern and match "AES128-SHA" too (since AES128-SHA got
709 the same strength classification in 0.9.7h) as we currently only
710 have a single AES bit in the ciphersuite description bitmap.
711 That change, however, also applied to ciphersuite strings such as
712 "RC4-MD5" that intentionally matched multiple ciphersuites --
713 namely, SSL 2.0 ciphersuites in addition to the more common ones
714 from SSL 3.0/TLS 1.0.
716 So we change the selection algorithm again: Naming an explicit
717 ciphersuite selects this one ciphersuite, and any other similar
718 ciphersuite (same bitmap) from *other* protocol versions.
719 Thus, "RC4-MD5" again will properly select both the SSL 2.0
720 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
722 Since SSL 2.0 does not have any ciphersuites for which the
723 128/256 bit distinction would be relevant, this works for now.
724 The proper fix will be to use different bits for AES128 and
725 AES256, which would have avoided the problems from the beginning;
726 however, bits are scarce, so we can only do this in a new release
727 (not just a patchlevel) when we can change the SSL_CIPHER
728 definition to split the single 'unsigned long mask' bitmap into
729 multiple values to extend the available space.
733 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
735 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
736 (CVE-2006-4339) [Ben Laurie and Google Security Team]
738 *) Add AES IGE and biIGE modes.
741 *) Change the Unix randomness entropy gathering to use poll() when
742 possible instead of select(), since the latter has some
743 undesirable limitations.
744 [Darryl Miles via Richard Levitte and Bodo Moeller]
746 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
747 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
748 cannot be implicitly activated as part of, e.g., the "AES" alias.
749 However, please upgrade to OpenSSL 0.9.9[-dev] for
750 non-experimental use of the ECC ciphersuites to get TLS extension
751 support, which is required for curve and point format negotiation
752 to avoid potential handshake problems.
755 *) Disable rogue ciphersuites:
757 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
758 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
759 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
761 The latter two were purportedly from
762 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
765 Also deactivate the remaining ciphersuites from
766 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
767 unofficial, and the ID has long expired.
770 *) Fix RSA blinding Heisenbug (problems sometimes occured on
771 dual-core machines) and other potential thread-safety issues.
774 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
775 versions), which is now available for royalty-free use
776 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
777 Also, add Camellia TLS ciphersuites from RFC 4132.
779 To minimize changes between patchlevels in the OpenSSL 0.9.8
780 series, Camellia remains excluded from compilation unless OpenSSL
781 is configured with 'enable-camellia'.
784 *) Disable the padding bug check when compression is in use. The padding
785 bug check assumes the first packet is of even length, this is not
786 necessarily true if compresssion is enabled and can result in false
787 positives causing handshake failure. The actual bug test is ancient
788 code so it is hoped that implementations will either have fixed it by
789 now or any which still have the bug do not support compression.
792 Changes between 0.9.8a and 0.9.8b [04 May 2006]
794 *) When applying a cipher rule check to see if string match is an explicit
795 cipher suite and only match that one cipher suite if it is.
798 *) Link in manifests for VC++ if needed.
799 [Austin Ziegler <halostatue@gmail.com>]
801 *) Update support for ECC-based TLS ciphersuites according to
802 draft-ietf-tls-ecc-12.txt with proposed changes (but without
803 TLS extensions, which are supported starting with the 0.9.9
804 branch, not in the OpenSSL 0.9.8 branch).
807 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
808 opaque EVP_CIPHER_CTX handling.
811 *) Fixes and enhancements to zlib compression code. We now only use
812 "zlib1.dll" and use the default __cdecl calling convention on Win32
813 to conform with the standards mentioned here:
814 http://www.zlib.net/DLL_FAQ.txt
815 Static zlib linking now works on Windows and the new --with-zlib-include
816 --with-zlib-lib options to Configure can be used to supply the location
817 of the headers and library. Gracefully handle case where zlib library
821 *) Several fixes and enhancements to the OID generation code. The old code
822 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
823 handle numbers larger than ULONG_MAX, truncated printing and had a
824 non standard OBJ_obj2txt() behaviour.
827 *) Add support for building of engines under engine/ as shared libraries
828 under VC++ build system.
831 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
832 Hopefully, we will not see any false combination of paths any more.
835 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
837 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
838 (part of SSL_OP_ALL). This option used to disable the
839 countermeasure against man-in-the-middle protocol-version
840 rollback in the SSL 2.0 server implementation, which is a bad
841 idea. (CVE-2005-2969)
843 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
844 for Information Security, National Institute of Advanced Industrial
845 Science and Technology [AIST], Japan)]
847 *) Add two function to clear and return the verify parameter flags.
850 *) Keep cipherlists sorted in the source instead of sorting them at
851 runtime, thus removing the need for a lock.
854 *) Avoid some small subgroup attacks in Diffie-Hellman.
855 [Nick Mathewson and Ben Laurie]
857 *) Add functions for well-known primes.
860 *) Extended Windows CE support.
861 [Satoshi Nakamura and Andy Polyakov]
863 *) Initialize SSL_METHOD structures at compile time instead of during
864 runtime, thus removing the need for a lock.
867 *) Make PKCS7_decrypt() work even if no certificate is supplied by
868 attempting to decrypt each encrypted key in turn. Add support to
872 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
874 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
877 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
880 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
881 key into the same file any more.
884 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
887 *) Add -utf8 command line and config file option to 'ca'.
888 [Stefan <stf@udoma.org]
890 *) Removed the macro des_crypt(), as it seems to conflict with some
891 libraries. Use DES_crypt().
894 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
895 involves renaming the source and generated shared-libs for
896 both. The engines will accept the corrected or legacy ids
897 ('ncipher' and '4758_cca' respectively) when binding. NB,
898 this only applies when building 'shared'.
899 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
901 *) Add attribute functions to EVP_PKEY structure. Modify
902 PKCS12_create() to recognize a CSP name attribute and
903 use it. Make -CSP option work again in pkcs12 utility.
906 *) Add new functionality to the bn blinding code:
907 - automatic re-creation of the BN_BLINDING parameters after
908 a fixed number of uses (currently 32)
909 - add new function for parameter creation
910 - introduce flags to control the update behaviour of the
911 BN_BLINDING parameters
912 - hide BN_BLINDING structure
913 Add a second BN_BLINDING slot to the RSA structure to improve
914 performance when a single RSA object is shared among several
918 *) Add support for DTLS.
919 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
921 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
922 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
925 *) Remove buggy and incompletet DH cert support from
926 ssl/ssl_rsa.c and ssl/s3_both.c
929 *) Use SHA-1 instead of MD5 as the default digest algorithm for
930 the apps/openssl applications.
933 *) Compile clean with "-Wall -Wmissing-prototypes
934 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
935 DEBUG_SAFESTACK must also be set.
938 *) Change ./Configure so that certain algorithms can be disabled by default.
939 The new counterpiece to "no-xxx" is "enable-xxx".
941 The patented RC5 and MDC2 algorithms will now be disabled unless
942 "enable-rc5" and "enable-mdc2", respectively, are specified.
944 (IDEA remains enabled despite being patented. This is because IDEA
945 is frequently required for interoperability, and there is no license
946 fee for non-commercial use. As before, "no-idea" can be used to
947 avoid this algorithm.)
951 *) Add processing of proxy certificates (see RFC 3820). This work was
952 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
953 EGEE (Enabling Grids for E-science in Europe).
956 *) RC4 performance overhaul on modern architectures/implementations, such
957 as Intel P4, IA-64 and AMD64.
960 *) New utility extract-section.pl. This can be used specify an alternative
961 section number in a pod file instead of having to treat each file as
962 a separate case in Makefile. This can be done by adding two lines to the
965 =for comment openssl_section:XXX
967 The blank line is mandatory.
971 *) New arguments -certform, -keyform and -pass for s_client and s_server
972 to allow alternative format key and certificate files and passphrase
976 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
977 update associated structures and add various utility functions.
979 Add new policy related verify parameters, include policy checking in
980 standard verify code. Enhance 'smime' application with extra parameters
981 to support policy checking and print out.
984 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
985 Nehemiah processors. These extensions support AES encryption in hardware
986 as well as RNG (though RNG support is currently disabled).
987 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
989 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
992 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
993 [Andy Polyakov and a number of other people]
995 *) Improved PowerPC platform support. Most notably BIGNUM assembler
996 implementation contributed by IBM.
997 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
999 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1000 exponent rather than 'unsigned long'. There is a corresponding change to
1001 the new 'rsa_keygen' element of the RSA_METHOD structure.
1002 [Jelte Jansen, Geoff Thorpe]
1004 *) Functionality for creating the initial serial number file is now
1005 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1007 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1008 number file to 1, which is bound to cause problems. To avoid
1009 the problems while respecting compatibility between different 0.9.7
1010 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1011 CA.pl for serial number initialization. With the new release 0.9.8,
1012 we can fix the problem directly in the 'ca' utility.)
1015 *) Reduced header interdepencies by declaring more opaque objects in
1016 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1017 give fewer recursive includes, which could break lazy source code - so
1018 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1019 developers should define this symbol when building and using openssl to
1020 ensure they track the recommended behaviour, interfaces, [etc], but
1021 backwards-compatible behaviour prevails when this isn't defined.
1024 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1027 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1028 This will generate a random key of the appropriate length based on the
1029 cipher context. The EVP_CIPHER can provide its own random key generation
1030 routine to support keys of a specific form. This is used in the des and
1031 3des routines to generate a key of the correct parity. Update S/MIME
1032 code to use new functions and hence generate correct parity DES keys.
1033 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1034 valid (weak or incorrect parity).
1037 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1038 as looking them up. This is useful when the verified structure may contain
1039 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1040 present unless the new PKCS7_NO_CRL flag is asserted.
1043 *) Extend ASN1 oid configuration module. It now additionally accepts the
1046 shortName = some long name, 1.2.3.4
1049 *) Reimplemented the BN_CTX implementation. There is now no more static
1050 limitation on the number of variables it can handle nor the depth of the
1051 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1052 information can now expand as required, and rather than having a single
1053 static array of bignums, BN_CTX now uses a linked-list of such arrays
1054 allowing it to expand on demand whilst maintaining the usefulness of
1055 BN_CTX's "bundling".
1058 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1059 to allow all RSA operations to function using a single BN_CTX.
1062 *) Preliminary support for certificate policy evaluation and checking. This
1063 is initially intended to pass the tests outlined in "Conformance Testing
1064 of Relying Party Client Certificate Path Processing Logic" v1.07.
1067 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1068 remained unused and not that useful. A variety of other little bignum
1069 tweaks and fixes have also been made continuing on from the audit (see
1073 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1074 associated ASN1, EVP and SSL functions and old ASN1 macros.
1077 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1078 and this should never fail. So the return value from the use of
1079 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1080 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1083 *) BN_CTX_get() should return zero-valued bignums, providing the same
1084 initialised value as BN_new().
1085 [Geoff Thorpe, suggested by Ulf Möller]
1087 *) Support for inhibitAnyPolicy certificate extension.
1090 *) An audit of the BIGNUM code is underway, for which debugging code is
1091 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1092 is considered valid when processing BIGNUMs, and causes execution to
1093 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1094 further steps are taken to deliberately pollute unused data in BIGNUM
1095 structures to try and expose faulty code further on. For now, openssl will
1096 (in its default mode of operation) continue to tolerate the inconsistent
1097 forms that it has tolerated in the past, but authors and packagers should
1098 consider trying openssl and their own applications when compiled with
1099 these debugging symbols defined. It will help highlight potential bugs in
1100 their own code, and will improve the test coverage for OpenSSL itself. At
1101 some point, these tighter rules will become openssl's default to improve
1102 maintainability, though the assert()s and other overheads will remain only
1103 in debugging configurations. See bn.h for more details.
1104 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1106 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1107 that can only be obtained through BN_CTX_new() (which implicitly
1108 initialises it). The presence of this function only made it possible
1109 to overwrite an existing structure (and cause memory leaks).
1112 *) Because of the callback-based approach for implementing LHASH as a
1113 template type, lh_insert() adds opaque objects to hash-tables and
1114 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1115 to clean up those corresponding objects before destroying the hash table
1116 (and losing the object pointers). So some over-zealous constifications in
1117 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1118 objects as "const" and the lh_doall[_arg] callback wrappers are not
1119 prototyped to have "const" restrictions on the object pointers they are
1120 given (and so aren't required to cast them away any more).
1123 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1124 (speed) prefers to use its own implementation. The two implementations
1125 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1126 its object type properly exposed (MS_TM) instead of casting to/from "char
1127 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1128 aren't necessarily the greatest nomenclatures - but this is what was used
1129 internally to the implementation so I've used that for now.
1132 *) Ensure that deprecated functions do not get compiled when
1133 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1134 the self-tests were still using deprecated key-generation functions so
1135 these have been updated also.
1138 *) Reorganise PKCS#7 code to separate the digest location functionality
1139 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1140 New function PKCS7_set_digest() to set the digest type for PKCS#7
1141 digestedData type. Add additional code to correctly generate the
1142 digestedData type and add support for this type in PKCS7 initialization
1146 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1147 structure of type "other".
1150 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1151 sure the loop does correctly stop and breaking ("division by zero")
1152 modulus operations are not performed. The (pre-generated) prime
1153 table crypto/bn/bn_prime.h was already correct, but it could not be
1154 re-generated on some platforms because of the "division by zero"
1155 situation in the script.
1156 [Ralf S. Engelschall]
1158 *) Update support for ECC-based TLS ciphersuites according to
1159 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1160 SHA-1 now is only used for "small" curves (where the
1161 representation of a field element takes up to 24 bytes); for
1162 larger curves, the field element resulting from ECDH is directly
1163 used as premaster secret.
1164 [Douglas Stebila (Sun Microsystems Laboratories)]
1166 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1167 curve secp160r1 to the tests.
1168 [Douglas Stebila (Sun Microsystems Laboratories)]
1170 *) Add the possibility to load symbols globally with DSO.
1171 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1173 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1174 control of the error stack.
1177 *) Add support for STORE in ENGINE.
1180 *) Add the STORE type. The intention is to provide a common interface
1181 to certificate and key stores, be they simple file-based stores, or
1182 HSM-type store, or LDAP stores, or...
1183 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1186 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1187 pass a list of arguments to any function as well as provide a way
1188 for a function to pass data back to the caller.
1191 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1192 works like BUF_strdup() but can be used to duplicate a portion of
1193 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1197 *) Add the function sk_find_ex() which works like sk_find(), but will
1198 return an index to an element even if an exact match couldn't be
1199 found. The index is guaranteed to point at the element where the
1200 searched-for key would be inserted to preserve sorting order.
1203 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1204 takes an extra flags argument for optional functionality. Currently,
1205 the following flags are defined:
1207 OBJ_BSEARCH_VALUE_ON_NOMATCH
1208 This one gets OBJ_bsearch_ex() to return a pointer to the first
1209 element where the comparing function returns a negative or zero
1212 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1213 This one gets OBJ_bsearch_ex() to return a pointer to the first
1214 element where the comparing function returns zero. This is useful
1215 if there are more than one element where the comparing function
1219 *) Make it possible to create self-signed certificates with 'openssl ca'
1220 in such a way that the self-signed certificate becomes part of the
1221 CA database and uses the same mechanisms for serial number generation
1222 as all other certificate signing. The new flag '-selfsign' enables
1223 this functionality. Adapt CA.sh and CA.pl.in.
1226 *) Add functionality to check the public key of a certificate request
1227 against a given private. This is useful to check that a certificate
1228 request can be signed by that key (self-signing).
1231 *) Make it possible to have multiple active certificates with the same
1232 subject in the CA index file. This is done only if the keyword
1233 'unique_subject' is set to 'no' in the main CA section (default
1234 if 'CA_default') of the configuration file. The value is saved
1235 with the database itself in a separate index attribute file,
1236 named like the index file with '.attr' appended to the name.
1239 *) Generate muti valued AVAs using '+' notation in config files for
1243 *) Support for nameConstraints certificate extension.
1246 *) Support for policyConstraints certificate extension.
1249 *) Support for policyMappings certificate extension.
1252 *) Make sure the default DSA_METHOD implementation only uses its
1253 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1254 and change its own handlers to be NULL so as to remove unnecessary
1255 indirection. This lets alternative implementations fallback to the
1256 default implementation more easily.
1259 *) Support for directoryName in GeneralName related extensions
1263 *) Make it possible to link applications using Makefile.shared.
1264 Make that possible even when linking against static libraries!
1267 *) Support for single pass processing for S/MIME signing. This now
1268 means that S/MIME signing can be done from a pipe, in addition
1269 cleartext signing (multipart/signed type) is effectively streaming
1270 and the signed data does not need to be all held in memory.
1272 This is done with a new flag PKCS7_STREAM. When this flag is set
1273 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1274 is done after the data is output (and digests calculated) in
1275 SMIME_write_PKCS7().
1278 *) Add full support for -rpath/-R, both in shared libraries and
1279 applications, at least on the platforms where it's known how
1283 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1284 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1285 will now compute a table of multiples of the generator that
1286 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1287 faster (notably in the case of a single point multiplication,
1288 scalar * generator).
1289 [Nils Larsch, Bodo Moeller]
1291 *) IPv6 support for certificate extensions. The various extensions
1292 which use the IP:a.b.c.d can now take IPv6 addresses using the
1293 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1297 *) Added an ENGINE that implements RSA by performing private key
1298 exponentiations with the GMP library. The conversions to and from
1299 GMP's mpz_t format aren't optimised nor are any montgomery forms
1300 cached, and on x86 it appears OpenSSL's own performance has caught up.
1301 However there are likely to be other architectures where GMP could
1302 provide a boost. This ENGINE is not built in by default, but it can be
1303 specified at Configure time and should be accompanied by the necessary
1304 linker additions, eg;
1305 ./config -DOPENSSL_USE_GMP -lgmp
1308 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1309 testing availability of engines with "-t" - the old behaviour is
1310 produced by increasing the feature's verbosity with "-tt".
1313 *) ECDSA routines: under certain error conditions uninitialized BN objects
1314 could be freed. Solution: make sure initialization is performed early
1315 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1319 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1320 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1321 software implementations. For DSA and DH, parameter generation can
1322 also be overriden by providing the appropriate method callbacks.
1325 *) Change the "progress" mechanism used in key-generation and
1326 primality testing to functions that take a new BN_GENCB pointer in
1327 place of callback/argument pairs. The new API functions have "_ex"
1328 postfixes and the older functions are reimplemented as wrappers for
1329 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1330 declarations of the old functions to help (graceful) attempts to
1331 migrate to the new functions. Also, the new key-generation API
1332 functions operate on a caller-supplied key-structure and return
1333 success/failure rather than returning a key or NULL - this is to
1334 help make "keygen" another member function of RSA_METHOD etc.
1336 Example for using the new callback interface:
1338 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1342 BN_GENCB_set(&my_cb, my_callback, my_arg);
1344 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1345 /* For the meaning of a, b in calls to my_callback(), see the
1346 * documentation of the function that calls the callback.
1347 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1348 * my_callback should return 1 if it wants BN_is_prime_ex()
1349 * to continue, or 0 to stop.
1354 *) Change the ZLIB compression method to be stateful, and make it
1355 available to TLS with the number defined in
1356 draft-ietf-tls-compression-04.txt.
1359 *) Add the ASN.1 structures and functions for CertificatePair, which
1360 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1362 CertificatePair ::= SEQUENCE {
1363 forward [0] Certificate OPTIONAL,
1364 reverse [1] Certificate OPTIONAL,
1365 -- at least one of the pair shall be present -- }
1367 Also implement the PEM functions to read and write certificate
1368 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1370 This needed to be defined, mostly for the sake of the LDAP
1371 attribute crossCertificatePair, but may prove useful elsewhere as
1375 *) Make it possible to inhibit symlinking of shared libraries in
1376 Makefile.shared, for Cygwin's sake.
1379 *) Extend the BIGNUM API by creating a function
1380 void BN_set_negative(BIGNUM *a, int neg);
1381 and a macro that behave like
1382 int BN_is_negative(const BIGNUM *a);
1384 to avoid the need to access 'a->neg' directly in applications.
1387 *) Implement fast modular reduction for pseudo-Mersenne primes
1388 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1389 EC_GROUP_new_curve_GFp() will now automatically use this
1391 [Nils Larsch <nla@trustcenter.de>]
1393 *) Add new lock type (CRYPTO_LOCK_BN).
1396 *) Change the ENGINE framework to automatically load engines
1397 dynamically from specific directories unless they could be
1398 found to already be built in or loaded. Move all the
1399 current engines except for the cryptodev one to a new
1401 The engines in engines/ are built as shared libraries if
1402 the "shared" options was given to ./Configure or ./config.
1403 Otherwise, they are inserted in libcrypto.a.
1404 /usr/local/ssl/engines is the default directory for dynamic
1405 engines, but that can be overriden at configure time through
1406 the usual use of --prefix and/or --openssldir, and at run
1407 time with the environment variable OPENSSL_ENGINES.
1408 [Geoff Thorpe and Richard Levitte]
1410 *) Add Makefile.shared, a helper makefile to build shared
1411 libraries. Addapt Makefile.org.
1414 *) Add version info to Win32 DLLs.
1415 [Peter 'Luna' Runestig" <peter@runestig.com>]
1417 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1418 can be added using this API to created arbitrary PKCS#12
1419 files while avoiding the low level API.
1421 New options to PKCS12_create(), key or cert can be NULL and
1422 will then be omitted from the output file. The encryption
1423 algorithm NIDs can be set to -1 for no encryption, the mac
1424 iteration count can be set to 0 to omit the mac.
1426 Enhance pkcs12 utility by making the -nokeys and -nocerts
1427 options work when creating a PKCS#12 file. New option -nomac
1428 to omit the mac, NONE can be set for an encryption algorithm.
1429 New code is modified to use the enhanced PKCS12_create()
1430 instead of the low level API.
1433 *) Extend ASN1 encoder to support indefinite length constructed
1434 encoding. This can output sequences tags and octet strings in
1435 this form. Modify pk7_asn1.c to support indefinite length
1436 encoding. This is experimental and needs additional code to
1437 be useful, such as an ASN1 bio and some enhanced streaming
1440 Extend template encode functionality so that tagging is passed
1441 down to the template encoder.
1444 *) Let 'openssl req' fail if an argument to '-newkey' is not
1445 recognized instead of using RSA as a default.
1448 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1449 As these are not official, they are not included in "ALL";
1450 the "ECCdraft" ciphersuite group alias can be used to select them.
1451 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1453 *) Add ECDH engine support.
1454 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1456 *) Add ECDH in new directory crypto/ecdh/.
1457 [Douglas Stebila (Sun Microsystems Laboratories)]
1459 *) Let BN_rand_range() abort with an error after 100 iterations
1460 without success (which indicates a broken PRNG).
1463 *) Change BN_mod_sqrt() so that it verifies that the input value
1464 is really the square of the return value. (Previously,
1465 BN_mod_sqrt would show GIGO behaviour.)
1468 *) Add named elliptic curves over binary fields from X9.62, SECG,
1469 and WAP/WTLS; add OIDs that were still missing.
1471 [Sheueling Chang Shantz and Douglas Stebila
1472 (Sun Microsystems Laboratories)]
1474 *) Extend the EC library for elliptic curves over binary fields
1475 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1478 EC_GF2m_simple_method
1482 EC_GROUP_new_curve_GF2m
1483 EC_GROUP_set_curve_GF2m
1484 EC_GROUP_get_curve_GF2m
1485 EC_POINT_set_affine_coordinates_GF2m
1486 EC_POINT_get_affine_coordinates_GF2m
1487 EC_POINT_set_compressed_coordinates_GF2m
1489 Point compression for binary fields is disabled by default for
1490 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1493 As binary polynomials are represented as BIGNUMs, various members
1494 of the EC_GROUP and EC_POINT data structures can be shared
1495 between the implementations for prime fields and binary fields;
1496 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1497 are essentially identical to their ..._GFp counterparts.
1498 (For simplicity, the '..._GFp' prefix has been dropped from
1499 various internal method names.)
1501 An internal 'field_div' method (similar to 'field_mul' and
1502 'field_sqr') has been added; this is used only for binary fields.
1504 [Sheueling Chang Shantz and Douglas Stebila
1505 (Sun Microsystems Laboratories)]
1507 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1508 through methods ('mul', 'precompute_mult').
1510 The generic implementations (now internally called 'ec_wNAF_mul'
1511 and 'ec_wNAF_precomputed_mult') remain the default if these
1512 methods are undefined.
1514 [Sheueling Chang Shantz and Douglas Stebila
1515 (Sun Microsystems Laboratories)]
1517 *) New function EC_GROUP_get_degree, which is defined through
1518 EC_METHOD. For curves over prime fields, this returns the bit
1519 length of the modulus.
1521 [Sheueling Chang Shantz and Douglas Stebila
1522 (Sun Microsystems Laboratories)]
1524 *) New functions EC_GROUP_dup, EC_POINT_dup.
1525 (These simply call ..._new and ..._copy).
1527 [Sheueling Chang Shantz and Douglas Stebila
1528 (Sun Microsystems Laboratories)]
1530 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1531 Polynomials are represented as BIGNUMs (where the sign bit is not
1532 used) in the following functions [macros]:
1535 BN_GF2m_sub [= BN_GF2m_add]
1536 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1537 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1538 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1540 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1541 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1542 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1543 BN_GF2m_cmp [= BN_ucmp]
1545 (Note that only the 'mod' functions are actually for fields GF(2^m).
1546 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1548 For some functions, an the irreducible polynomial defining a
1549 field can be given as an 'unsigned int[]' with strictly
1550 decreasing elements giving the indices of those bits that are set;
1551 i.e., p[] represents the polynomial
1552 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1554 p[0] > p[1] > ... > p[k] = 0.
1555 This applies to the following functions:
1560 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1561 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1563 BN_GF2m_mod_sqrt_arr
1564 BN_GF2m_mod_solve_quad_arr
1568 Conversion can be performed by the following functions:
1573 bntest.c has additional tests for binary polynomial arithmetic.
1575 Two implementations for BN_GF2m_mod_div() are available.
1576 The default algorithm simply uses BN_GF2m_mod_inv() and
1577 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1578 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1579 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1581 [Sheueling Chang Shantz and Douglas Stebila
1582 (Sun Microsystems Laboratories)]
1584 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1585 functionality is disabled at compile-time.
1586 [Douglas Stebila <douglas.stebila@sun.com>]
1588 *) Change default behaviour of 'openssl asn1parse' so that more
1589 information is visible when viewing, e.g., a certificate:
1591 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1592 mode the content of non-printable OCTET STRINGs is output in a
1593 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1594 avoid the appearance of a printable string.
1595 [Nils Larsch <nla@trustcenter.de>]
1597 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1599 EC_GROUP_set_asn1_flag()
1600 EC_GROUP_get_asn1_flag()
1601 EC_GROUP_set_point_conversion_form()
1602 EC_GROUP_get_point_conversion_form()
1603 These control ASN1 encoding details:
1604 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1605 has been set to OPENSSL_EC_NAMED_CURVE.
1606 - Points are encoded in uncompressed form by default; options for
1607 asn1_for are as for point2oct, namely
1608 POINT_CONVERSION_COMPRESSED
1609 POINT_CONVERSION_UNCOMPRESSED
1610 POINT_CONVERSION_HYBRID
1612 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1615 EC_GROUP_get0_seed()
1616 EC_GROUP_get_seed_len()
1617 This is used only for ASN1 purposes (so far).
1618 [Nils Larsch <nla@trustcenter.de>]
1620 *) Add 'field_type' member to EC_METHOD, which holds the NID
1621 of the appropriate field type OID. The new function
1622 EC_METHOD_get_field_type() returns this value.
1623 [Nils Larsch <nla@trustcenter.de>]
1628 EC_POINT_point2hex()
1629 EC_POINT_hex2point()
1630 providing useful interfaces to EC_POINT_point2oct() and
1631 EC_POINT_oct2point().
1632 [Nils Larsch <nla@trustcenter.de>]
1634 *) Change internals of the EC library so that the functions
1635 EC_GROUP_set_generator()
1636 EC_GROUP_get_generator()
1637 EC_GROUP_get_order()
1638 EC_GROUP_get_cofactor()
1639 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1640 to methods, which would lead to unnecessary code duplication when
1641 adding different types of curves.
1642 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1644 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1645 arithmetic, and such that modified wNAFs are generated
1646 (which avoid length expansion in many cases).
1649 *) Add a function EC_GROUP_check_discriminant() (defined via
1650 EC_METHOD) that verifies that the curve discriminant is non-zero.
1652 Add a function EC_GROUP_check() that makes some sanity tests
1653 on a EC_GROUP, its generator and order. This includes
1654 EC_GROUP_check_discriminant().
1655 [Nils Larsch <nla@trustcenter.de>]
1657 *) Add ECDSA in new directory crypto/ecdsa/.
1659 Add applications 'openssl ecparam' and 'openssl ecdsa'
1660 (these are based on 'openssl dsaparam' and 'openssl dsa').
1662 ECDSA support is also included in various other files across the
1663 library. Most notably,
1664 - 'openssl req' now has a '-newkey ecdsa:file' option;
1665 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1666 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1667 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1668 them suitable for ECDSA where domain parameters must be
1669 extracted before the specific public key;
1670 - ECDSA engine support has been added.
1671 [Nils Larsch <nla@trustcenter.de>]
1673 *) Include some named elliptic curves, and add OIDs from X9.62,
1674 SECG, and WAP/WTLS. Each curve can be obtained from the new
1676 EC_GROUP_new_by_curve_name(),
1677 and the list of available named curves can be obtained with
1678 EC_get_builtin_curves().
1679 Also add a 'curve_name' member to EC_GROUP objects, which can be
1681 EC_GROUP_set_curve_name()
1682 EC_GROUP_get_curve_name()
1683 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1685 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1686 was actually never needed) and in BN_mul(). The removal in BN_mul()
1687 required a small change in bn_mul_part_recursive() and the addition
1688 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1689 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1690 bn_sub_words() and bn_add_words() except they take arrays with
1694 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1696 *) Cleanse PEM buffers before freeing them since they may contain
1698 [Benjamin Bennett <ben@psc.edu>]
1700 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1701 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1702 authentication-only ciphersuites.
1705 *) Since AES128 and AES256 share a single mask bit in the logic of
1706 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1707 kludge to work properly if AES128 is available and AES256 isn't.
1710 *) Expand security boundary to match 1.1.1 module.
1713 *) Remove redundant features: hash file source, editing of test vectors
1714 modify fipsld to use external fips_premain.c signature.
1717 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1718 run algorithm test programs.
1721 *) Make algorithm test programs more tolerant of whitespace.
1724 *) Have SSL/TLS server implementation tolerate "mismatched" record
1725 protocol version while receiving ClientHello even if the
1726 ClientHello is fragmented. (The server can't insist on the
1727 particular protocol version it has chosen before the ServerHello
1728 message has informed the client about his choice.)
1731 *) Load error codes if they are not already present instead of using a
1732 static variable. This allows them to be cleanly unloaded and reloaded.
1735 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1737 *) Introduce limits to prevent malicious keys being able to
1738 cause a denial of service. (CVE-2006-2940)
1739 [Steve Henson, Bodo Moeller]
1741 *) Fix ASN.1 parsing of certain invalid structures that can result
1742 in a denial of service. (CVE-2006-2937) [Steve Henson]
1744 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1745 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1747 *) Fix SSL client code which could crash if connecting to a
1748 malicious SSLv2 server. (CVE-2006-4343)
1749 [Tavis Ormandy and Will Drewry, Google Security Team]
1751 *) Change ciphersuite string processing so that an explicit
1752 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1753 will no longer include "AES128-SHA"), and any other similar
1754 ciphersuite (same bitmap) from *other* protocol versions (so that
1755 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1756 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1757 changes from 0.9.8b and 0.9.8d.
1760 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1762 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1763 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1765 *) Change the Unix randomness entropy gathering to use poll() when
1766 possible instead of select(), since the latter has some
1767 undesirable limitations.
1768 [Darryl Miles via Richard Levitte and Bodo Moeller]
1770 *) Disable rogue ciphersuites:
1772 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1773 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1774 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1776 The latter two were purportedly from
1777 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1780 Also deactive the remaining ciphersuites from
1781 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1782 unofficial, and the ID has long expired.
1785 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1786 dual-core machines) and other potential thread-safety issues.
1789 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1791 *) Adapt fipsld and the build system to link against the validated FIPS
1792 module in FIPS mode.
1795 *) Fixes for VC++ 2005 build under Windows.
1798 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1799 from a Windows bash shell such as MSYS. It is autodetected from the
1800 "config" script when run from a VC++ environment. Modify standard VC++
1801 build to use fipscanister.o from the GNU make build.
1804 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1806 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1807 The value now differs depending on if you build for FIPS or not.
1808 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1809 safely run with a non-FIPSed libcrypto, as it may crash because of
1810 the difference induced by this change.
1813 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1815 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1816 (part of SSL_OP_ALL). This option used to disable the
1817 countermeasure against man-in-the-middle protocol-version
1818 rollback in the SSL 2.0 server implementation, which is a bad
1819 idea. (CVE-2005-2969)
1821 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1822 for Information Security, National Institute of Advanced Industrial
1823 Science and Technology [AIST], Japan)]
1825 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1826 mainly for FIPS compliance and not fully integrated at this stage.
1829 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1830 the exponentiation using a fixed-length exponent. (Otherwise,
1831 the information leaked through timing could expose the secret key
1832 after many signatures; cf. Bleichenbacher's attack on DSA with
1836 *) Make a new fixed-window mod_exp implementation the default for
1837 RSA, DSA, and DH private-key operations so that the sequence of
1838 squares and multiplies and the memory access pattern are
1839 independent of the particular secret key. This will mitigate
1840 cache-timing and potential related attacks.
1842 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1843 and this is automatically used by BN_mod_exp_mont() if the new flag
1844 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1845 will use this BN flag for private exponents unless the flag
1846 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1847 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1849 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1851 *) Change the client implementation for SSLv23_method() and
1852 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1853 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1854 (Previously, the SSL 2.0 backwards compatible Client Hello
1855 message format would be used even with SSL_OP_NO_SSLv2.)
1858 *) Add support for smime-type MIME parameter in S/MIME messages which some
1862 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1863 a threadsafe manner. Modify rsa code to use new function and add calls
1864 to dsa and dh code (which had race conditions before).
1867 *) Include the fixed error library code in the C error file definitions
1868 instead of fixing them up at runtime. This keeps the error code
1869 structures constant.
1872 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1874 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1877 *) Fixes for newer kerberos headers. NB: the casts are needed because
1878 the 'length' field is signed on one version and unsigned on another
1879 with no (?) obvious way to tell the difference, without these VC++
1880 complains. Also the "definition" of FAR (blank) is no longer included
1881 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1882 some needed definitions.
1885 *) Undo Cygwin change.
1888 *) Added support for proxy certificates according to RFC 3820.
1889 Because they may be a security thread to unaware applications,
1890 they must be explicitely allowed in run-time. See
1891 docs/HOWTO/proxy_certificates.txt for further information.
1894 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1896 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1897 server and client random values. Previously
1898 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1899 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1901 This change has negligible security impact because:
1903 1. Server and client random values still have 24 bytes of pseudo random
1906 2. Server and client random values are sent in the clear in the initial
1909 3. The master secret is derived using the premaster secret (48 bytes in
1910 size for static RSA ciphersuites) as well as client server and random
1913 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1916 [Stephen Henson, reported by UK NISCC]
1918 *) Use Windows randomness collection on Cygwin.
1921 *) Fix hang in EGD/PRNGD query when communication socket is closed
1922 prematurely by EGD/PRNGD.
1923 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1925 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1928 *) Back-port of selected performance improvements from development
1929 branch, as well as improved support for PowerPC platforms.
1932 *) Add lots of checks for memory allocation failure, error codes to indicate
1933 failure and freeing up memory if a failure occurs.
1934 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1936 *) Add new -passin argument to dgst.
1939 *) Perform some character comparisons of different types in X509_NAME_cmp:
1940 this is needed for some certificates that reencode DNs into UTF8Strings
1941 (in violation of RFC3280) and can't or wont issue name rollover
1945 *) Make an explicit check during certificate validation to see that
1946 the CA setting in each certificate on the chain is correct. As a
1947 side effect always do the following basic checks on extensions,
1948 not just when there's an associated purpose to the check:
1950 - if there is an unhandled critical extension (unless the user
1951 has chosen to ignore this fault)
1952 - if the path length has been exceeded (if one is set at all)
1953 - that certain extensions fit the associated purpose (if one has
1957 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1959 *) Avoid a race condition when CRLs are checked in a multi threaded
1960 environment. This would happen due to the reordering of the revoked
1961 entries during signature checking and serial number lookup. Now the
1962 encoding is cached and the serial number sort performed under a lock.
1963 Add new STACK function sk_is_sorted().
1966 *) Add Delta CRL to the extension code.
1969 *) Various fixes to s3_pkt.c so alerts are sent properly.
1970 [David Holmes <d.holmes@f5.com>]
1972 *) Reduce the chances of duplicate issuer name and serial numbers (in
1973 violation of RFC3280) using the OpenSSL certificate creation utilities.
1974 This is done by creating a random 64 bit value for the initial serial
1975 number when a serial number file is created or when a self signed
1976 certificate is created using 'openssl req -x509'. The initial serial
1977 number file is created using 'openssl x509 -next_serial' in CA.pl
1978 rather than being initialized to 1.
1981 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1983 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1984 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1985 [Joe Orton, Steve Henson]
1987 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1989 [Joe Orton, Steve Henson]
1991 *) Make it possible to have multiple active certificates with the same
1992 subject in the CA index file. This is done only if the keyword
1993 'unique_subject' is set to 'no' in the main CA section (default
1994 if 'CA_default') of the configuration file. The value is saved
1995 with the database itself in a separate index attribute file,
1996 named like the index file with '.attr' appended to the name.
1999 *) X509 verify fixes. Disable broken certificate workarounds when
2000 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2001 keyUsage extension present. Don't accept CRLs with unhandled critical
2002 extensions: since verify currently doesn't process CRL extensions this
2003 rejects a CRL with *any* critical extensions. Add new verify error codes
2007 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2008 A clarification of RFC2560 will require the use of OCTET STRINGs and
2009 some implementations cannot handle the current raw format. Since OpenSSL
2010 copies and compares OCSP nonces as opaque blobs without any attempt at
2011 parsing them this should not create any compatibility issues.
2014 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2015 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2016 this HMAC (and other) operations are several times slower than OpenSSL
2020 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2021 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2023 *) Use the correct content when signing type "other".
2026 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2028 *) Fix various bugs revealed by running the NISCC test suite:
2030 Stop out of bounds reads in the ASN1 code when presented with
2031 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2033 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2035 If verify callback ignores invalid public key errors don't try to check
2036 certificate signature with the NULL public key.
2040 *) New -ignore_err option in ocsp application to stop the server
2041 exiting on the first error in a request.
2044 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2045 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2049 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2050 extra data after the compression methods not only for TLS 1.0
2051 but also for SSL 3.0 (as required by the specification).
2052 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2054 *) Change X509_certificate_type() to mark the key as exported/exportable
2055 when it's 512 *bits* long, not 512 bytes.
2058 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2059 blocks during encryption.
2062 *) Various fixes to base64 BIO and non blocking I/O. On write
2063 flushes were not handled properly if the BIO retried. On read
2064 data was not being buffered properly and had various logic bugs.
2065 This also affects blocking I/O when the data being decoded is a
2069 *) Various S/MIME bugfixes and compatibility changes:
2070 output correct application/pkcs7 MIME type if
2071 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2072 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2073 of files as .eml work). Correctly handle very long lines in MIME
2077 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2079 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2080 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2081 a protocol version number mismatch like a decryption error
2082 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2085 *) Turn on RSA blinding by default in the default implementation
2086 to avoid a timing attack. Applications that don't want it can call
2087 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2088 They would be ill-advised to do so in most cases.
2089 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2091 *) Change RSA blinding code so that it works when the PRNG is not
2092 seeded (in this case, the secret RSA exponent is abused as
2093 an unpredictable seed -- if it is not unpredictable, there
2094 is no point in blinding anyway). Make RSA blinding thread-safe
2095 by remembering the creator's thread ID in rsa->blinding and
2096 having all other threads use local one-time blinding factors
2097 (this requires more computation than sharing rsa->blinding, but
2098 avoids excessive locking; and if an RSA object is not shared
2099 between threads, blinding will still be very fast).
2102 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2103 ENGINE as defaults for all supported algorithms irrespective of
2104 the 'flags' parameter. 'flags' is now honoured, so applications
2105 should make sure they are passing it correctly.
2108 *) Target "mingw" now allows native Windows code to be generated in
2109 the Cygwin environment as well as with the MinGW compiler.
2112 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2114 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2115 via timing by performing a MAC computation even if incorrrect
2116 block cipher padding has been found. This is a countermeasure
2117 against active attacks where the attacker has to distinguish
2118 between bad padding and a MAC verification error. (CVE-2003-0078)
2120 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2121 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2122 Martin Vuagnoux (EPFL, Ilion)]
2124 *) Make the no-err option work as intended. The intention with no-err
2125 is not to have the whole error stack handling routines removed from
2126 libcrypto, it's only intended to remove all the function name and
2127 reason texts, thereby removing some of the footprint that may not
2128 be interesting if those errors aren't displayed anyway.
2130 NOTE: it's still possible for any application or module to have it's
2131 own set of error texts inserted. The routines are there, just not
2132 used by default when no-err is given.
2135 *) Add support for FreeBSD on IA64.
2136 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2138 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2139 Kerberos function mit_des_cbc_cksum(). Before this change,
2140 the value returned by DES_cbc_cksum() was like the one from
2141 mit_des_cbc_cksum(), except the bytes were swapped.
2142 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2144 *) Allow an application to disable the automatic SSL chain building.
2145 Before this a rather primitive chain build was always performed in
2146 ssl3_output_cert_chain(): an application had no way to send the
2147 correct chain if the automatic operation produced an incorrect result.
2149 Now the chain builder is disabled if either:
2151 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2153 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2155 The reasoning behind this is that an application would not want the
2156 auto chain building to take place if extra chain certificates are
2157 present and it might also want a means of sending no additional
2158 certificates (for example the chain has two certificates and the
2162 *) Add the possibility to build without the ENGINE framework.
2163 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2165 *) Under Win32 gmtime() can return NULL: check return value in
2166 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2169 *) DSA routines: under certain error conditions uninitialized BN objects
2170 could be freed. Solution: make sure initialization is performed early
2171 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2172 Nils Larsch <nla@trustcenter.de> via PR#459)
2175 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2176 checked on reconnect on the client side, therefore session resumption
2177 could still fail with a "ssl session id is different" error. This
2178 behaviour is masked when SSL_OP_ALL is used due to
2179 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2180 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2181 followup to PR #377.
2184 *) IA-32 assembler support enhancements: unified ELF targets, support
2185 for SCO/Caldera platforms, fix for Cygwin shared build.
2188 *) Add support for FreeBSD on sparc64. As a consequence, support for
2189 FreeBSD on non-x86 processors is separate from x86 processors on
2190 the config script, much like the NetBSD support.
2191 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2193 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2195 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2198 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2199 code (06) was taken as the first octet of the session ID and the last
2200 octet was ignored consequently. As a result SSLv2 client side session
2201 caching could not have worked due to the session ID mismatch between
2203 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2207 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2208 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2212 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2213 seems that in spite of existing for more than a year, many application
2214 author have done nothing to provide the necessary callbacks, which
2215 means that this particular engine will not work properly anywhere.
2216 This is a very unfortunate situation which forces us, in the name
2217 of usability, to give the hw_ncipher.c a static lock, which is part
2219 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2220 appear in 0.9.8 or later. We EXPECT application authors to have
2221 dealt properly with this when 0.9.8 is released (unless we actually
2222 make such changes in the libcrypto locking code that changes will
2223 have to be made anyway).
2226 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2227 octets have been read, EOF or an error occurs. Without this change
2228 some truncated ASN1 structures will not produce an error.
2231 *) Disable Heimdal support, since it hasn't been fully implemented.
2232 Still give the possibility to force the use of Heimdal, but with
2233 warnings and a request that patches get sent to openssl-dev.
2236 *) Add the VC-CE target, introduce the WINCE sysname, and add
2237 INSTALL.WCE and appropriate conditionals to make it build.
2238 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2240 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2241 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2242 edit numbers of the version.
2243 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2245 *) Introduce safe string copy and catenation functions
2246 (BUF_strlcpy() and BUF_strlcat()).
2247 [Ben Laurie (CHATS) and Richard Levitte]
2249 *) Avoid using fixed-size buffers for one-line DNs.
2250 [Ben Laurie (CHATS)]
2252 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2253 resizing buffers containing secrets, and use where appropriate.
2254 [Ben Laurie (CHATS)]
2256 *) Avoid using fixed size buffers for configuration file location.
2257 [Ben Laurie (CHATS)]
2259 *) Avoid filename truncation for various CA files.
2260 [Ben Laurie (CHATS)]
2262 *) Use sizeof in preference to magic numbers.
2263 [Ben Laurie (CHATS)]
2265 *) Avoid filename truncation in cert requests.
2266 [Ben Laurie (CHATS)]
2268 *) Add assertions to check for (supposedly impossible) buffer
2270 [Ben Laurie (CHATS)]
2272 *) Don't cache truncated DNS entries in the local cache (this could
2273 potentially lead to a spoofing attack).
2274 [Ben Laurie (CHATS)]
2276 *) Fix various buffers to be large enough for hex/decimal
2277 representations in a platform independent manner.
2278 [Ben Laurie (CHATS)]
2280 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2281 resizing buffers containing secrets, and use where appropriate.
2282 [Ben Laurie (CHATS)]
2284 *) Add BIO_indent() to avoid much slightly worrying code to do
2286 [Ben Laurie (CHATS)]
2288 *) Convert sprintf()/BIO_puts() to BIO_printf().
2289 [Ben Laurie (CHATS)]
2291 *) buffer_gets() could terminate with the buffer only half
2293 [Ben Laurie (CHATS)]
2295 *) Add assertions to prevent user-supplied crypto functions from
2296 overflowing internal buffers by having large block sizes, etc.
2297 [Ben Laurie (CHATS)]
2299 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2301 [Ben Laurie (CHATS)]
2303 *) Eliminate unused copy of key in RC4.
2304 [Ben Laurie (CHATS)]
2306 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2307 [Ben Laurie (CHATS)]
2309 *) Fix off-by-one error in EGD path.
2310 [Ben Laurie (CHATS)]
2312 *) If RANDFILE path is too long, ignore instead of truncating.
2313 [Ben Laurie (CHATS)]
2315 *) Eliminate unused and incorrectly sized X.509 structure
2317 [Ben Laurie (CHATS)]
2319 *) Eliminate unused and dangerous function knumber().
2320 [Ben Laurie (CHATS)]
2322 *) Eliminate unused and dangerous structure, KSSL_ERR.
2323 [Ben Laurie (CHATS)]
2325 *) Protect against overlong session ID context length in an encoded
2326 session object. Since these are local, this does not appear to be
2328 [Ben Laurie (CHATS)]
2330 *) Change from security patch (see 0.9.6e below) that did not affect
2331 the 0.9.6 release series:
2333 Remote buffer overflow in SSL3 protocol - an attacker could
2334 supply an oversized master key in Kerberos-enabled versions.
2336 [Ben Laurie (CHATS)]
2338 *) Change the SSL kerb5 codes to match RFC 2712.
2341 *) Make -nameopt work fully for req and add -reqopt switch.
2342 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2344 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2345 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2347 *) Make sure tests can be performed even if the corresponding algorithms
2348 have been removed entirely. This was also the last step to make
2349 OpenSSL compilable with DJGPP under all reasonable conditions.
2350 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2352 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2353 to allow version independent disabling of normally unselected ciphers,
2354 which may be activated as a side-effect of selecting a single cipher.
2356 (E.g., cipher list string "RSA" enables ciphersuites that are left
2357 out of "ALL" because they do not provide symmetric encryption.
2358 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2359 [Lutz Jaenicke, Bodo Moeller]
2361 *) Add appropriate support for separate platform-dependent build
2362 directories. The recommended way to make a platform-dependent
2363 build directory is the following (tested on Linux), maybe with
2366 # Place yourself outside of the OpenSSL source tree. In
2367 # this example, the environment variable OPENSSL_SOURCE
2368 # is assumed to contain the absolute OpenSSL source directory.
2369 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2370 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2371 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2372 mkdir -p `dirname $F`
2373 ln -s $OPENSSL_SOURCE/$F $F
2376 To be absolutely sure not to disturb the source tree, a "make clean"
2377 is a good thing. If it isn't successfull, don't worry about it,
2378 it probably means the source directory is very clean.
2381 *) Make sure any ENGINE control commands make local copies of string
2382 pointers passed to them whenever necessary. Otherwise it is possible
2383 the caller may have overwritten (or deallocated) the original string
2384 data when a later ENGINE operation tries to use the stored values.
2385 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2387 *) Improve diagnostics in file reading and command-line digests.
2388 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2390 *) Add AES modes CFB and OFB to the object database. Correct an
2391 error in AES-CFB decryption.
2394 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2395 allows existing EVP_CIPHER_CTX structures to be reused after
2396 calling EVP_*Final(). This behaviour is used by encryption
2397 BIOs and some applications. This has the side effect that
2398 applications must explicitly clean up cipher contexts with
2399 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2402 *) Check the values of dna and dnb in bn_mul_recursive before calling
2403 bn_mul_comba (a non zero value means the a or b arrays do not contain
2404 n2 elements) and fallback to bn_mul_normal if either is not zero.
2407 *) Fix escaping of non-ASCII characters when using the -subj option
2408 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2411 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2412 form for "surname", serialNumber has no short form.
2413 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2414 therefore remove "mail" short name for "internet 7".
2415 The OID for unique identifiers in X509 certificates is
2416 x500UniqueIdentifier, not uniqueIdentifier.
2417 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2420 *) Add an "init" command to the ENGINE config module and auto initialize
2421 ENGINEs. Without any "init" command the ENGINE will be initialized
2422 after all ctrl commands have been executed on it. If init=1 the
2423 ENGINE is initailized at that point (ctrls before that point are run
2424 on the uninitialized ENGINE and after on the initialized one). If
2425 init=0 then the ENGINE will not be iniatialized at all.
2428 *) Fix the 'app_verify_callback' interface so that the user-defined
2429 argument is actually passed to the callback: In the
2430 SSL_CTX_set_cert_verify_callback() prototype, the callback
2431 declaration has been changed from
2434 int (*cb)(X509_STORE_CTX *,void *);
2435 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2436 i=s->ctx->app_verify_callback(&ctx)
2437 has been changed into
2438 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2440 To update applications using SSL_CTX_set_cert_verify_callback(),
2441 a dummy argument can be added to their callback functions.
2442 [D. K. Smetters <smetters@parc.xerox.com>]
2444 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2445 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2447 *) Add and OPENSSL_LOAD_CONF define which will cause
2448 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2449 This allows older applications to transparently support certain
2450 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2451 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2452 load the config file and OPENSSL_add_all_algorithms_conf() which will
2453 always load it have also been added.
2456 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2457 Adjust NIDs and EVP layer.
2458 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2460 *) Config modules support in openssl utility.
2462 Most commands now load modules from the config file,
2463 though in a few (such as version) this isn't done
2464 because it couldn't be used for anything.
2466 In the case of ca and req the config file used is
2467 the same as the utility itself: that is the -config
2468 command line option can be used to specify an
2472 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2473 use "openssl_conf" if filename is NULL use default openssl config file.
2476 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2477 config section name. Add a new flag to tolerate a missing config file
2478 and move code to CONF_modules_load_file().
2481 *) Support for crypto accelerator cards from Accelerated Encryption
2482 Processing, www.aep.ie. (Use engine 'aep')
2483 The support was copied from 0.9.6c [engine] and adapted/corrected
2484 to work with the new engine framework.
2485 [AEP Inc. and Richard Levitte]
2487 *) Support for SureWare crypto accelerator cards from Baltimore
2488 Technologies. (Use engine 'sureware')
2489 The support was copied from 0.9.6c [engine] and adapted
2490 to work with the new engine framework.
2493 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2494 make the newer ENGINE framework commands for the CHIL engine work.
2495 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2497 *) Make it possible to produce shared libraries on ReliantUNIX.
2498 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2500 *) Add the configuration target debug-linux-ppro.
2501 Make 'openssl rsa' use the general key loading routines
2502 implemented in apps.c, and make those routines able to
2503 handle the key format FORMAT_NETSCAPE and the variant
2505 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2507 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2508 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2510 *) Add -keyform to rsautl, and document -engine.
2511 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2513 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2514 BIO_R_NO_SUCH_FILE error code rather than the generic
2515 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2518 *) Add new functions
2520 ERR_peek_last_error_line
2521 ERR_peek_last_error_line_data.
2522 These are similar to
2525 ERR_peek_error_line_data,
2526 but report on the latest error recorded rather than the first one
2527 still in the error queue.
2528 [Ben Laurie, Bodo Moeller]
2530 *) default_algorithms option in ENGINE config module. This allows things
2532 default_algorithms = ALL
2533 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2536 *) Prelminary ENGINE config module.
2539 *) New experimental application configuration code.
2542 *) Change the AES code to follow the same name structure as all other
2543 symmetric ciphers, and behave the same way. Move everything to
2544 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2545 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2547 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2548 [Ben Laurie and Theo de Raadt]
2550 *) Add option to output public keys in req command.
2551 [Massimiliano Pala madwolf@openca.org]
2553 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2554 (up to about 10% better than before for P-192 and P-224).
2557 *) New functions/macros
2559 SSL_CTX_set_msg_callback(ctx, cb)
2560 SSL_CTX_set_msg_callback_arg(ctx, arg)
2561 SSL_set_msg_callback(ssl, cb)
2562 SSL_set_msg_callback_arg(ssl, arg)
2564 to request calling a callback function
2566 void cb(int write_p, int version, int content_type,
2567 const void *buf, size_t len, SSL *ssl, void *arg)
2569 whenever a protocol message has been completely received
2570 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2571 protocol version according to which the SSL library interprets
2572 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2573 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2574 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2575 specification (change_cipher_spec(20), alert(21), handshake(22)).
2576 'buf' and 'len' point to the actual message, 'ssl' to the
2577 SSL object, and 'arg' is the application-defined value set by
2578 SSL[_CTX]_set_msg_callback_arg().
2580 'openssl s_client' and 'openssl s_server' have new '-msg' options
2581 to enable a callback that displays all protocol messages.
2584 *) Change the shared library support so shared libraries are built as
2585 soon as the corresponding static library is finished, and thereby get
2586 openssl and the test programs linked against the shared library.
2587 This still only happens when the keyword "shard" has been given to
2588 the configuration scripts.
2590 NOTE: shared library support is still an experimental thing, and
2591 backward binary compatibility is still not guaranteed.
2592 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2594 *) Add support for Subject Information Access extension.
2595 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2597 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2598 additional bytes when new memory had to be allocated, not just
2599 when reusing an existing buffer.
2602 *) New command line and configuration option 'utf8' for the req command.
2603 This allows field values to be specified as UTF8 strings.
2606 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2607 runs for the former and machine-readable output for the latter.
2610 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2611 of the e-mail address in the DN (i.e., it will go into a certificate
2612 extension only). The new configuration file option 'email_in_dn = no'
2613 has the same effect.
2614 [Massimiliano Pala madwolf@openca.org]
2616 *) Change all functions with names starting with des_ to be starting
2617 with DES_ instead. Add wrappers that are compatible with libdes,
2618 but are named _ossl_old_des_*. Finally, add macros that map the
2619 des_* symbols to the corresponding _ossl_old_des_* if libdes
2620 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2621 desired, the des_* symbols will be mapped to DES_*, with one
2624 Since we provide two compatibility mappings, the user needs to
2625 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2626 compatibility is desired. The default (i.e., when that macro
2627 isn't defined) is OpenSSL 0.9.6c compatibility.
2629 There are also macros that enable and disable the support of old
2630 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2631 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2632 are defined, the default will apply: to support the old des routines.
2634 In either case, one must include openssl/des.h to get the correct
2635 definitions. Do not try to just include openssl/des_old.h, that
2638 NOTE: This is a major break of an old API into a new one. Software
2639 authors are encouraged to switch to the DES_ style functions. Some
2640 time in the future, des_old.h and the libdes compatibility functions
2641 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2642 default), and then completely removed.
2645 *) Test for certificates which contain unsupported critical extensions.
2646 If such a certificate is found during a verify operation it is
2647 rejected by default: this behaviour can be overridden by either
2648 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2649 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2650 X509_supported_extension() has also been added which returns 1 if a
2651 particular extension is supported.
2654 *) Modify the behaviour of EVP cipher functions in similar way to digests
2655 to retain compatibility with existing code.
2658 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2659 compatibility with existing code. In particular the 'ctx' parameter does
2660 not have to be to be initialized before the call to EVP_DigestInit() and
2661 it is tidied up after a call to EVP_DigestFinal(). New function
2662 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2663 EVP_MD_CTX_copy() changed to not require the destination to be
2664 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2665 requires the destination to be valid.
2667 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2668 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2671 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2672 so that complete 'Handshake' protocol structures are kept in memory
2673 instead of overwriting 'msg_type' and 'length' with 'body' data.
2676 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2677 [Massimo Santin via Richard Levitte]
2679 *) Major restructuring to the underlying ENGINE code. This includes
2680 reduction of linker bloat, separation of pure "ENGINE" manipulation
2681 (initialisation, etc) from functionality dealing with implementations
2682 of specific crypto iterfaces. This change also introduces integrated
2683 support for symmetric ciphers and digest implementations - so ENGINEs
2684 can now accelerate these by providing EVP_CIPHER and EVP_MD
2685 implementations of their own. This is detailed in crypto/engine/README
2686 as it couldn't be adequately described here. However, there are a few
2687 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2688 were changed in the original introduction of ENGINE code have now
2689 reverted back - the hooking from this code to ENGINE is now a good
2690 deal more passive and at run-time, operations deal directly with
2691 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2692 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2693 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2694 they were not being used by the framework as there is no concept of a
2695 BIGNUM_METHOD and they could not be generalised to the new
2696 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2697 ENGINE_cpy() has been removed as it cannot be consistently defined in
2701 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2704 *) Change mkdef.pl to sort symbols that get the same entry number,
2705 and make sure the automatically generated functions ERR_load_*
2706 become part of libeay.num as well.
2709 *) New function SSL_renegotiate_pending(). This returns true once
2710 renegotiation has been requested (either SSL_renegotiate() call
2711 or HelloRequest/ClientHello receveived from the peer) and becomes
2712 false once a handshake has been completed.
2713 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2714 sends a HelloRequest, but does not ensure that a handshake takes
2715 place. SSL_renegotiate_pending() is useful for checking if the
2716 client has followed the request.)
2719 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2720 By default, clients may request session resumption even during
2721 renegotiation (if session ID contexts permit); with this option,
2722 session resumption is possible only in the first handshake.
2724 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2725 more bits available for options that should not be part of
2726 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2729 *) Add some demos for certificate and certificate request creation.
2732 *) Make maximum certificate chain size accepted from the peer application
2733 settable (SSL*_get/set_max_cert_list()), as proposed by
2734 "Douglas E. Engert" <deengert@anl.gov>.
2737 *) Add support for shared libraries for Unixware-7
2738 (Boyd Lynn Gerber <gerberb@zenez.com>).
2741 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2742 be done prior to destruction. Use this to unload error strings from
2743 ENGINEs that load their own error strings. NB: This adds two new API
2744 functions to "get" and "set" this destroy handler in an ENGINE.
2747 *) Alter all existing ENGINE implementations (except "openssl" and
2748 "openbsd") to dynamically instantiate their own error strings. This
2749 makes them more flexible to be built both as statically-linked ENGINEs
2750 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2751 Also, add stub code to each that makes building them as self-contained
2752 shared-libraries easier (see README.ENGINE).
2755 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2756 implementations into applications that are completely implemented in
2757 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2758 commands that can be used to configure what shared-library to load and
2759 to control aspects of the way it is handled. Also, made an update to
2760 the README.ENGINE file that brings its information up-to-date and
2761 provides some information and instructions on the "dynamic" ENGINE
2762 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2765 *) Make it possible to unload ranges of ERR strings with a new
2766 "ERR_unload_strings" function.
2769 *) Add a copy() function to EVP_MD.
2772 *) Make EVP_MD routines take a context pointer instead of just the
2773 md_data void pointer.
2776 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2777 that the digest can only process a single chunk of data
2778 (typically because it is provided by a piece of
2779 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2780 is only going to provide a single chunk of data, and hence the
2781 framework needn't accumulate the data for oneshot drivers.
2784 *) As with "ERR", make it possible to replace the underlying "ex_data"
2785 functions. This change also alters the storage and management of global
2786 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2787 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2788 index counters. The API functions that use this state have been changed
2789 to take a "class_index" rather than pointers to the class's local STACK
2790 and counter, and there is now an API function to dynamically create new
2791 classes. This centralisation allows us to (a) plug a lot of the
2792 thread-safety problems that existed, and (b) makes it possible to clean
2793 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2794 such data would previously have always leaked in application code and
2795 workarounds were in place to make the memory debugging turn a blind eye
2796 to it. Application code that doesn't use this new function will still
2797 leak as before, but their memory debugging output will announce it now
2798 rather than letting it slide.
2800 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2801 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2802 has a return value to indicate success or failure.
2805 *) Make it possible to replace the underlying "ERR" functions such that the
2806 global state (2 LHASH tables and 2 locks) is only used by the "default"
2807 implementation. This change also adds two functions to "get" and "set"
2808 the implementation prior to it being automatically set the first time
2809 any other ERR function takes place. Ie. an application can call "get",
2810 pass the return value to a module it has just loaded, and that module
2811 can call its own "set" function using that value. This means the
2812 module's "ERR" operations will use (and modify) the error state in the
2813 application and not in its own statically linked copy of OpenSSL code.
2816 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2817 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2818 the operation, and provides a more encapsulated way for external code
2819 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2820 to use these functions rather than manually incrementing the counts.
2822 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2825 *) Add EVP test program.
2828 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2831 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2832 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2833 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2834 These allow a CRL to be built without having to access X509_CRL fields
2835 directly. Modify 'ca' application to use new functions.
2838 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2839 bug workarounds. Rollback attack detection is a security feature.
2840 The problem will only arise on OpenSSL servers when TLSv1 is not
2841 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2842 Software authors not wanting to support TLSv1 will have special reasons
2843 for their choice and can explicitly enable this option.
2844 [Bodo Moeller, Lutz Jaenicke]
2846 *) Rationalise EVP so it can be extended: don't include a union of
2847 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2848 (similar to those existing for EVP_CIPHER_CTX).
2853 EVP_MD_CTX_init(&md); /* new function call */
2854 EVP_DigestInit(&md, EVP_sha1());
2855 EVP_DigestUpdate(&md, in, len);
2856 EVP_DigestFinal(&md, out, NULL);
2857 EVP_MD_CTX_cleanup(&md); /* new function call */
2861 *) Make DES key schedule conform to the usual scheme, as well as
2862 correcting its structure. This means that calls to DES functions
2863 now have to pass a pointer to a des_key_schedule instead of a
2864 plain des_key_schedule (which was actually always a pointer
2867 des_key_schedule ks;
2869 des_set_key_checked(..., &ks);
2870 des_ncbc_encrypt(..., &ks, ...);
2872 (Note that a later change renames 'des_...' into 'DES_...'.)
2875 *) Initial reduction of linker bloat: the use of some functions, such as
2876 PEM causes large amounts of unused functions to be linked in due to
2877 poor organisation. For example pem_all.c contains every PEM function
2878 which has a knock on effect of linking in large amounts of (unused)
2879 ASN1 code. Grouping together similar functions and splitting unrelated
2880 functions prevents this.
2883 *) Cleanup of EVP macros.
2886 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2887 correct _ecb suffix.
2890 *) Add initial OCSP responder support to ocsp application. The
2891 revocation information is handled using the text based index
2892 use by the ca application. The responder can either handle
2893 requests generated internally, supplied in files (for example
2894 via a CGI script) or using an internal minimal server.
2897 *) Add configuration choices to get zlib compression for TLS.
2900 *) Changes to Kerberos SSL for RFC 2712 compliance:
2901 1. Implemented real KerberosWrapper, instead of just using
2902 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2903 2. Implemented optional authenticator field of KerberosWrapper.
2905 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2906 and authenticator structs; see crypto/krb5/.
2908 Generalized Kerberos calls to support multiple Kerberos libraries.
2909 [Vern Staats <staatsvr@asc.hpc.mil>,
2910 Jeffrey Altman <jaltman@columbia.edu>
2911 via Richard Levitte]
2913 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2914 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2915 values for each of the key sizes rather than having just
2916 parameters (and 'speed' generating keys each time).
2919 *) Speed up EVP routines.
2922 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2923 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2924 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2925 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2927 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2928 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2929 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2932 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2934 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2937 *) Added the OS2-EMX target.
2938 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2940 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2941 to support NCONF routines in extension code. New function CONF_set_nconf()
2942 to allow functions which take an NCONF to also handle the old LHASH
2943 structure: this means that the old CONF compatible routines can be
2944 retained (in particular wrt extensions) without having to duplicate the
2945 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2948 *) Enhance the general user interface with mechanisms for inner control
2949 and with possibilities to have yes/no kind of prompts.
2952 *) Change all calls to low level digest routines in the library and
2953 applications to use EVP. Add missing calls to HMAC_cleanup() and
2954 don't assume HMAC_CTX can be copied using memcpy().
2955 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2957 *) Add the possibility to control engines through control names but with
2958 arbitrary arguments instead of just a string.
2959 Change the key loaders to take a UI_METHOD instead of a callback
2960 function pointer. NOTE: this breaks binary compatibility with earlier
2961 versions of OpenSSL [engine].
2962 Adapt the nCipher code for these new conditions and add a card insertion
2966 *) Enhance the general user interface with mechanisms to better support
2967 dialog box interfaces, application-defined prompts, the possibility
2968 to use defaults (for example default passwords from somewhere else)
2969 and interrupts/cancellations.
2972 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2973 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2976 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2977 tidy up some unnecessarily weird code in 'sk_new()').
2978 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2980 *) Change the key loading routines for ENGINEs to use the same kind
2981 callback (pem_password_cb) as all other routines that need this
2985 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2986 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2987 than this minimum value is recommended.
2990 *) New random seeder for OpenVMS, using the system process statistics
2991 that are easily reachable.
2994 *) Windows apparently can't transparently handle global
2995 variables defined in DLLs. Initialisations such as:
2997 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2999 wont compile. This is used by the any applications that need to
3000 declare their own ASN1 modules. This was fixed by adding the option
3001 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3002 needed for static libraries under Win32.
3005 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3006 setting of purpose and trust fields. New X509_STORE trust and
3007 purpose functions and tidy up setting in other SSL functions.
3010 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3011 structure. These are inherited by X509_STORE_CTX when it is
3012 initialised. This allows various defaults to be set in the
3013 X509_STORE structure (such as flags for CRL checking and custom
3014 purpose or trust settings) for functions which only use X509_STORE_CTX
3015 internally such as S/MIME.
3017 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3018 trust settings if they are not set in X509_STORE. This allows X509_STORE
3019 purposes and trust (in S/MIME for example) to override any set by default.
3021 Add command line options for CRL checking to smime, s_client and s_server
3025 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3026 are set then the CRL is looked up in the X509_STORE structure and
3027 its validity and signature checked, then if the certificate is found
3028 in the CRL the verify fails with a revoked error.
3030 Various new CRL related callbacks added to X509_STORE_CTX structure.
3032 Command line options added to 'verify' application to support this.
3034 This needs some additional work, such as being able to handle multiple
3035 CRLs with different times, extension based lookup (rather than just
3036 by subject name) and ultimately more complete V2 CRL extension
3040 *) Add a general user interface API (crypto/ui/). This is designed
3041 to replace things like des_read_password and friends (backward
3042 compatibility functions using this new API are provided).
3043 The purpose is to remove prompting functions from the DES code
3044 section as well as provide for prompting through dialog boxes in
3045 a window system and the like.
3048 *) Add "ex_data" support to ENGINE so implementations can add state at a
3049 per-structure level rather than having to store it globally.
3052 *) Make it possible for ENGINE structures to be copied when retrieved by
3053 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3054 This causes the "original" ENGINE structure to act like a template,
3055 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3056 operational state can be localised to each ENGINE structure, despite the
3057 fact they all share the same "methods". New ENGINE structures returned in
3058 this case have no functional references and the return value is the single
3059 structural reference. This matches the single structural reference returned
3060 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3064 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3065 needs to match any other type at all we need to manually clear the
3069 *) Changes to the "openssl engine" utility to include;
3070 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3071 about an ENGINE's available control commands.
3072 - executing control commands from command line arguments using the
3073 '-pre' and '-post' switches. '-post' is only used if '-t' is
3074 specified and the ENGINE is successfully initialised. The syntax for
3075 the individual commands are colon-separated, for example;
3076 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3079 *) New dynamic control command support for ENGINEs. ENGINEs can now
3080 declare their own commands (numbers), names (strings), descriptions,
3081 and input types for run-time discovery by calling applications. A
3082 subset of these commands are implicitly classed as "executable"
3083 depending on their input type, and only these can be invoked through
3084 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3085 can be based on user input, config files, etc). The distinction is
3086 that "executable" commands cannot return anything other than a boolean
3087 result and can only support numeric or string input, whereas some
3088 discoverable commands may only be for direct use through
3089 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3090 pointers, or other custom uses. The "executable" commands are to
3091 support parameterisations of ENGINE behaviour that can be
3092 unambiguously defined by ENGINEs and used consistently across any
3093 OpenSSL-based application. Commands have been added to all the
3094 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3095 control over shared-library paths without source code alterations.
3098 *) Changed all ENGINE implementations to dynamically allocate their
3099 ENGINEs rather than declaring them statically. Apart from this being
3100 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3101 this also allows the implementations to compile without using the
3102 internal engine_int.h header.
3105 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3106 'const' value. Any code that should be able to modify a RAND_METHOD
3107 should already have non-const pointers to it (ie. they should only
3108 modify their own ones).
3111 *) Made a variety of little tweaks to the ENGINE code.
3112 - "atalla" and "ubsec" string definitions were moved from header files
3113 to C code. "nuron" string definitions were placed in variables
3114 rather than hard-coded - allowing parameterisation of these values
3115 later on via ctrl() commands.
3116 - Removed unused "#if 0"'d code.
3117 - Fixed engine list iteration code so it uses ENGINE_free() to release
3118 structural references.
3119 - Constified the RAND_METHOD element of ENGINE structures.
3120 - Constified various get/set functions as appropriate and added
3121 missing functions (including a catch-all ENGINE_cpy that duplicates
3122 all ENGINE values onto a new ENGINE except reference counts/state).
3123 - Removed NULL parameter checks in get/set functions. Setting a method
3124 or function to NULL is a way of cancelling out a previously set
3125 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3126 and doesn't justify the extra error symbols and code.
3127 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3128 flags from engine_int.h to engine.h.
3129 - Changed prototypes for ENGINE handler functions (init(), finish(),
3130 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3133 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3134 to the algorithm using long division. The binary algorithm can be
3135 used only if the modulus is odd. On 32-bit systems, it is faster
3136 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3137 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3138 up to 450 bits. In 64-bit environments, the binary algorithm
3139 appears to be advantageous for much longer moduli; here we use it
3140 for moduli up to 2048 bits.
3143 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3144 could not support the combine flag in choice fields.
3147 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3148 extensions from a certificate request to the certificate.
3151 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3152 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3153 file: this allows the display of the certificate about to be
3154 signed to be customised, to allow certain fields to be included
3155 or excluded and extension details. The old system didn't display
3156 multicharacter strings properly, omitted fields not in the policy
3157 and couldn't display additional details such as extensions.
3160 *) Function EC_POINTs_mul for multiple scalar multiplication
3161 of an arbitrary number of elliptic curve points
3162 \sum scalars[i]*points[i],
3163 optionally including the generator defined for the EC_GROUP:
3164 scalar*generator + \sum scalars[i]*points[i].
3166 EC_POINT_mul is a simple wrapper function for the typical case
3167 that the point list has just one item (besides the optional
3171 *) First EC_METHODs for curves over GF(p):
3173 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3174 operations and provides various method functions that can also
3175 operate with faster implementations of modular arithmetic.
3177 EC_GFp_mont_method() reuses most functions that are part of
3178 EC_GFp_simple_method, but uses Montgomery arithmetic.
3180 [Bodo Moeller; point addition and point doubling
3181 implementation directly derived from source code provided by
3182 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3184 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3185 crypto/ec/ec_lib.c):
3187 Curves are EC_GROUP objects (with an optional group generator)
3188 based on EC_METHODs that are built into the library.
3190 Points are EC_POINT objects based on EC_GROUP objects.
3192 Most of the framework would be able to handle curves over arbitrary
3193 finite fields, but as there are no obvious types for fields other
3194 than GF(p), some functions are limited to that for now.
3197 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3198 that the file contains a complete HTTP response.
3201 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3202 change the def and num file printf format specifier from "%-40sXXX"
3203 to "%-39s XXX". The latter will always guarantee a space after the
3204 field while the former will cause them to run together if the field
3205 is 40 of more characters long.
3208 *) Constify the cipher and digest 'method' functions and structures
3209 and modify related functions to take constant EVP_MD and EVP_CIPHER
3213 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3214 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3217 *) Modify EVP_Digest*() routines so they now return values. Although the
3218 internal software routines can never fail additional hardware versions
3222 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3224 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3225 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3228 ERR_R_NESTED_ASN1_ERROR
3230 ERR_R_MISSING_ASN1_EOS
3231 were 4 .. 9, conflicting with
3232 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3234 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3235 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3237 Add new error code 'ERR_R_INTERNAL_ERROR'.
3240 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3244 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3245 sets the subject name for a new request or supersedes the
3246 subject name in a given request. Formats that can be parsed are
3247 'CN=Some Name, OU=myOU, C=IT'
3249 'CN=Some Name/OU=myOU/C=IT'.
3251 Add options '-batch' and '-verbose' to 'openssl req'.
3252 [Massimiliano Pala <madwolf@hackmasters.net>]
3254 *) Introduce the possibility to access global variables through
3255 functions on platform were that's the best way to handle exporting
3256 global variables in shared libraries. To enable this functionality,
3257 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3258 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3259 is normally done by Configure or something similar).
3261 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3262 in the source file (foo.c) like this:
3264 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3265 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3267 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3268 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3270 OPENSSL_DECLARE_GLOBAL(int,foo);
3271 #define foo OPENSSL_GLOBAL_REF(foo)
3272 OPENSSL_DECLARE_GLOBAL(double,bar);
3273 #define bar OPENSSL_GLOBAL_REF(bar)
3275 The #defines are very important, and therefore so is including the
3276 header file everywhere where the defined globals are used.
3278 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3279 of ASN.1 items, but that structure is a bit different.
3281 The largest change is in util/mkdef.pl which has been enhanced with
3282 better and easier to understand logic to choose which symbols should
3283 go into the Windows .def files as well as a number of fixes and code
3284 cleanup (among others, algorithm keywords are now sorted
3285 lexicographically to avoid constant rewrites).
3288 *) In BN_div() keep a copy of the sign of 'num' before writing the
3289 result to 'rm' because if rm==num the value will be overwritten
3290 and produce the wrong result if 'num' is negative: this caused
3291 problems with BN_mod() and BN_nnmod().
3294 *) Function OCSP_request_verify(). This checks the signature on an
3295 OCSP request and verifies the signer certificate. The signer
3296 certificate is just checked for a generic purpose and OCSP request
3300 *) Add OCSP_check_validity() function to check the validity of OCSP
3301 responses. OCSP responses are prepared in real time and may only
3302 be a few seconds old. Simply checking that the current time lies
3303 between thisUpdate and nextUpdate max reject otherwise valid responses
3304 caused by either OCSP responder or client clock inaccuracy. Instead
3305 we allow thisUpdate and nextUpdate to fall within a certain period of
3306 the current time. The age of the response can also optionally be
3307 checked. Two new options -validity_period and -status_age added to
3311 *) If signature or public key algorithm is unrecognized print out its
3312 OID rather that just UNKNOWN.
3315 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3316 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3317 ID to be generated from the issuer certificate alone which can then be
3318 passed to OCSP_id_issuer_cmp().
3321 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3322 ASN1 modules to export functions returning ASN1_ITEM pointers
3323 instead of the ASN1_ITEM structures themselves. This adds several
3324 new macros which allow the underlying ASN1 function/structure to
3325 be accessed transparently. As a result code should not use ASN1_ITEM
3326 references directly (such as &X509_it) but instead use the relevant
3327 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3328 use of the new ASN1 code on platforms where exporting structures
3329 is problematical (for example in shared libraries) but exporting
3330 functions returning pointers to structures is not.
3333 *) Add support for overriding the generation of SSL/TLS session IDs.
3334 These callbacks can be registered either in an SSL_CTX or per SSL.
3335 The purpose of this is to allow applications to control, if they wish,
3336 the arbitrary values chosen for use as session IDs, particularly as it
3337 can be useful for session caching in multiple-server environments. A
3338 command-line switch for testing this (and any client code that wishes
3339 to use such a feature) has been added to "s_server".
3340 [Geoff Thorpe, Lutz Jaenicke]
3342 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3343 of the form '#if defined(...) || defined(...) || ...' and
3344 '#if !defined(...) && !defined(...) && ...'. This also avoids
3345 the growing number of special cases it was previously handling.
3348 *) Make all configuration macros available for application by making
3349 sure they are available in opensslconf.h, by giving them names starting
3350 with "OPENSSL_" to avoid conflicts with other packages and by making
3351 sure e_os2.h will cover all platform-specific cases together with
3353 Additionally, it is now possible to define configuration/platform-
3354 specific names (called "system identities"). In the C code, these
3355 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3356 macro with the name beginning with "OPENSSL_SYS_", which is determined
3357 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3361 *) New option -set_serial to 'req' and 'x509' this allows the serial
3362 number to use to be specified on the command line. Previously self
3363 signed certificates were hard coded with serial number 0 and the
3364 CA options of 'x509' had to use a serial number in a file which was
3368 *) New options to 'ca' utility to support V2 CRL entry extensions.
3369 Currently CRL reason, invalidity date and hold instruction are
3370 supported. Add new CRL extensions to V3 code and some new objects.
3373 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3374 disable standard block padding (aka PKCS#5 padding) in the EVP
3375 API, which was previously mandatory. This means that the data is
3376 not padded in any way and so the total length much be a multiple
3377 of the block size, otherwise an error occurs.
3380 *) Initial (incomplete) OCSP SSL support.
3383 *) New function OCSP_parse_url(). This splits up a URL into its host,
3384 port and path components: primarily to parse OCSP URLs. New -url
3385 option to ocsp utility.
3388 *) New nonce behavior. The return value of OCSP_check_nonce() now
3389 reflects the various checks performed. Applications can decide
3390 whether to tolerate certain situations such as an absent nonce
3391 in a response when one was present in a request: the ocsp application
3392 just prints out a warning. New function OCSP_add1_basic_nonce()
3393 this is to allow responders to include a nonce in a response even if
3394 the request is nonce-less.
3397 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3398 skipped when using openssl x509 multiple times on a single input file,
3399 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3402 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3403 set string type: to handle setting ASN1_TIME structures. Fix ca
3404 utility to correctly initialize revocation date of CRLs.
3407 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3408 the clients preferred ciphersuites and rather use its own preferences.
3409 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3410 Internet Explorer by ensuring unchanged hash method during stepup.
3411 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3414 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3415 to aes and add a new 'exist' option to print out symbols that don't
3419 *) Additional options to ocsp utility to allow flags to be set and
3420 additional certificates supplied.
3423 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3424 OCSP client a number of certificate to only verify the response
3428 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3429 handle the new API. Currently only ECB, CBC modes supported. Add new
3432 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3433 Encryption Standard (AES) Ciphersuites for Transport Layer
3434 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3435 not enabled by default and were not part of the "ALL" ciphersuite
3436 alias because they were not yet official; they could be
3437 explicitly requested by specifying the "AESdraft" ciphersuite
3438 group alias. In the final release of OpenSSL 0.9.7, the group
3439 alias is called "AES" and is part of "ALL".)
3440 [Ben Laurie, Steve Henson, Bodo Moeller]
3442 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3443 request to response.
3446 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3447 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3448 extract information from a certificate request. OCSP_response_create()
3449 creates a response and optionally adds a basic response structure.
3450 OCSP_basic_add1_status() adds a complete single response to a basic
3451 response and returns the OCSP_SINGLERESP structure just added (to allow
3452 extensions to be included for example). OCSP_basic_add1_cert() adds a
3453 certificate to a basic response and OCSP_basic_sign() signs a basic
3454 response with various flags. New helper functions ASN1_TIME_check()
3455 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3456 (converts ASN1_TIME to GeneralizedTime).
3459 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3460 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3461 structure from a certificate. X509_pubkey_digest() digests the public_key
3462 contents: this is used in various key identifiers.
3465 *) Make sk_sort() tolerate a NULL argument.
3466 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3468 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3469 passed by the function are trusted implicitly. If any of them signed the
3470 response then it is assumed to be valid and is not verified.
3473 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3474 to data. This was previously part of the PKCS7 ASN1 code. This
3475 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3476 [Steve Henson, reported by Kenneth R. Robinette
3477 <support@securenetterm.com>]
3479 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3480 routines: without these tracing memory leaks is very painful.
3481 Fix leaks in PKCS12 and PKCS7 routines.
3484 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3485 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3486 effectively meant GeneralizedTime would never be used. Now it
3487 is initialised to -1 but X509_time_adj() now has to check the value
3488 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3489 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3490 [Steve Henson, reported by Kenneth R. Robinette
3491 <support@securenetterm.com>]
3493 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3494 result in a zero length in the ASN1_INTEGER structure which was
3495 not consistent with the structure when d2i_ASN1_INTEGER() was used
3496 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3497 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3498 where it did not print out a minus for negative ASN1_INTEGER.
3501 *) Add summary printout to ocsp utility. The various functions which
3502 convert status values to strings have been renamed to:
3503 OCSP_response_status_str(), OCSP_cert_status_str() and
3504 OCSP_crl_reason_str() and are no longer static. New options
3505 to verify nonce values and to disable verification. OCSP response
3506 printout format cleaned up.
3509 *) Add additional OCSP certificate checks. These are those specified
3510 in RFC2560. This consists of two separate checks: the CA of the
3511 certificate being checked must either be the OCSP signer certificate
3512 or the issuer of the OCSP signer certificate. In the latter case the
3513 OCSP signer certificate must contain the OCSP signing extended key
3514 usage. This check is performed by attempting to match the OCSP
3515 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3516 in the OCSP_CERTID structures of the response.
3519 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3520 and related routines. This uses the standard OpenSSL certificate
3521 verify routines to perform initial checks (just CA validity) and
3522 to obtain the certificate chain. Then additional checks will be
3523 performed on the chain. Currently the root CA is checked to see
3524 if it is explicitly trusted for OCSP signing. This is used to set
3525 a root CA as a global signing root: that is any certificate that
3526 chains to that CA is an acceptable OCSP signing certificate.
3529 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3530 extensions from a separate configuration file.
3531 As when reading extensions from the main configuration file,
3532 the '-extensions ...' option may be used for specifying the
3534 [Massimiliano Pala <madwolf@comune.modena.it>]
3536 *) New OCSP utility. Allows OCSP requests to be generated or
3537 read. The request can be sent to a responder and the output
3538 parsed, outputed or printed in text form. Not complete yet:
3539 still needs to check the OCSP response validity.
3542 *) New subcommands for 'openssl ca':
3543 'openssl ca -status <serial>' prints the status of the cert with
3544 the given serial number (according to the index file).
3545 'openssl ca -updatedb' updates the expiry status of certificates
3547 [Massimiliano Pala <madwolf@comune.modena.it>]
3549 *) New '-newreq-nodes' command option to CA.pl. This is like
3550 '-newreq', but calls 'openssl req' with the '-nodes' option
3551 so that the resulting key is not encrypted.
3552 [Damien Miller <djm@mindrot.org>]
3554 *) New configuration for the GNU Hurd.
3555 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3557 *) Initial code to implement OCSP basic response verify. This
3558 is currently incomplete. Currently just finds the signer's
3559 certificate and verifies the signature on the response.
3562 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3563 value of OPENSSLDIR. This is available via the new '-d' option
3564 to 'openssl version', and is also included in 'openssl version -a'.
3567 *) Allowing defining memory allocation callbacks that will be given
3568 file name and line number information in additional arguments
3569 (a const char* and an int). The basic functionality remains, as
3570 well as the original possibility to just replace malloc(),
3571 realloc() and free() by functions that do not know about these
3572 additional arguments. To register and find out the current
3573 settings for extended allocation functions, the following
3574 functions are provided:
3576 CRYPTO_set_mem_ex_functions
3577 CRYPTO_set_locked_mem_ex_functions
3578 CRYPTO_get_mem_ex_functions
3579 CRYPTO_get_locked_mem_ex_functions
3581 These work the same way as CRYPTO_set_mem_functions and friends.
3582 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3583 extended allocation function is enabled.
3584 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3585 a conventional allocation function is enabled.
3586 [Richard Levitte, Bodo Moeller]
3588 *) Finish off removing the remaining LHASH function pointer casts.
3589 There should no longer be any prototype-casting required when using
3590 the LHASH abstraction, and any casts that remain are "bugs". See
3591 the callback types and macros at the head of lhash.h for details
3592 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3595 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3596 If /dev/[u]random devices are not available or do not return enough
3597 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3599 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3600 /etc/entropy will be queried once each in this sequence, quering stops
3601 when enough entropy was collected without querying more sockets.
3604 *) Change the Unix RAND_poll() variant to be able to poll several
3605 random devices, as specified by DEVRANDOM, until a sufficient amount
3606 of data has been collected. We spend at most 10 ms on each file
3607 (select timeout) and read in non-blocking mode. DEVRANDOM now
3608 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3609 (previously it was just the string "/dev/urandom"), so on typical
3610 platforms the 10 ms delay will never occur.
3611 Also separate out the Unix variant to its own file, rand_unix.c.
3612 For VMS, there's a currently-empty rand_vms.c.
3615 *) Move OCSP client related routines to ocsp_cl.c. These
3616 provide utility functions which an application needing
3617 to issue a request to an OCSP responder and analyse the
3618 response will typically need: as opposed to those which an
3619 OCSP responder itself would need which will be added later.
3621 OCSP_request_sign() signs an OCSP request with an API similar
3622 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3623 response. OCSP_response_get1_basic() extracts basic response
3624 from response. OCSP_resp_find_status(): finds and extracts status
3625 information from an OCSP_CERTID structure (which will be created
3626 when the request structure is built). These are built from lower
3627 level functions which work on OCSP_SINGLERESP structures but
3628 wont normally be used unless the application wishes to examine
3629 extensions in the OCSP response for example.
3631 Replace nonce routines with a pair of functions.
3632 OCSP_request_add1_nonce() adds a nonce value and optionally
3633 generates a random value. OCSP_check_nonce() checks the
3634 validity of the nonce in an OCSP response.
3637 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3638 This doesn't copy the supplied OCSP_CERTID and avoids the
3639 need to free up the newly created id. Change return type
3640 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3641 This can then be used to add extensions to the request.
3642 Deleted OCSP_request_new(), since most of its functionality
3643 is now in OCSP_REQUEST_new() (and the case insensitive name
3644 clash) apart from the ability to set the request name which
3645 will be added elsewhere.
3648 *) Update OCSP API. Remove obsolete extensions argument from
3649 various functions. Extensions are now handled using the new
3650 OCSP extension code. New simple OCSP HTTP function which
3651 can be used to send requests and parse the response.
3654 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3655 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3656 uses the special reorder version of SET OF to sort the attributes
3657 and reorder them to match the encoded order. This resolves a long
3658 standing problem: a verify on a PKCS7 structure just after signing
3659 it used to fail because the attribute order did not match the
3660 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3661 it uses the received order. This is necessary to tolerate some broken
3662 software that does not order SET OF. This is handled by encoding
3663 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3664 to produce the required SET OF.
3667 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3668 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3669 files to get correct declarations of the ASN.1 item variables.
3672 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3673 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3674 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3675 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3676 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3677 ASN1_ITEM and no wrapper functions.
3680 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3681 replace the old function pointer based I/O routines. Change most of
3682 the *_d2i_bio() and *_d2i_fp() functions to use these.
3685 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3686 lines, recognice more "algorithms" that can be deselected, and make
3687 it complain about algorithm deselection that isn't recognised.
3690 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3691 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3692 to use new functions. Add NO_ASN1_OLD which can be set to remove
3693 some old style ASN1 functions: this can be used to determine if old
3694 code will still work when these eventually go away.
3697 *) New extension functions for OCSP structures, these follow the
3698 same conventions as certificates and CRLs.
3701 *) New function X509V3_add1_i2d(). This automatically encodes and
3702 adds an extension. Its behaviour can be customised with various
3703 flags to append, replace or delete. Various wrappers added for
3704 certifcates and CRLs.
3707 *) Fix to avoid calling the underlying ASN1 print routine when
3708 an extension cannot be parsed. Correct a typo in the
3709 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3712 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3713 entries for variables.
3716 *) Add functionality to apps/openssl.c for detecting locking
3717 problems: As the program is single-threaded, all we have
3718 to do is register a locking callback using an array for
3719 storing which locks are currently held by the program.
3722 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3723 SSL_get_ex_data_X509_STORE_idx(), which is used in
3724 ssl_verify_cert_chain() and thus can be called at any time
3725 during TLS/SSL handshakes so that thread-safety is essential.
3726 Unfortunately, the ex_data design is not at all suited
3727 for multi-threaded use, so it probably should be abolished.
3730 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3731 [Broadcom, tweaked and integrated by Geoff Thorpe]
3733 *) Move common extension printing code to new function
3734 X509V3_print_extensions(). Reorganise OCSP print routines and
3735 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3738 *) New function X509_signature_print() to remove duplication in some
3742 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3743 set (this was treated exactly the same as SET OF previously). This
3744 is used to reorder the STACK representing the structure to match the
3745 encoding. This will be used to get round a problem where a PKCS7
3746 structure which was signed could not be verified because the STACK
3747 order did not reflect the encoded order.
3750 *) Reimplement the OCSP ASN1 module using the new code.
3753 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3754 for its ASN1 operations. The old style function pointers still exist
3755 for now but they will eventually go away.
3758 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3759 completely replaces the old ASN1 functionality with a table driven
3760 encoder and decoder which interprets an ASN1_ITEM structure describing
3761 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3762 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3763 has also been converted to the new form.
3766 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3767 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3768 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3769 for negative moduli.
3772 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3773 of not touching the result's sign bit.
3776 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3780 *) Changed the LHASH code to use prototypes for callbacks, and created
3781 macros to declare and implement thin (optionally static) functions
3782 that provide type-safety and avoid function pointer casting for the
3783 type-specific callbacks.
3786 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3788 [Veers Staats <staatsvr@asc.hpc.mil>,
3789 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3791 *) Reformat the FAQ so the different questions and answers can be divided
3792 in sections depending on the subject.
3795 *) Have the zlib compression code load ZLIB.DLL dynamically under
3799 *) New function BN_mod_sqrt for computing square roots modulo a prime
3800 (using the probabilistic Tonelli-Shanks algorithm unless
3801 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3802 be handled deterministically).
3803 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3805 *) Make BN_mod_inverse faster by explicitly handling small quotients
3806 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3807 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3810 *) New function BN_kronecker.
3813 *) Fix BN_gcd so that it works on negative inputs; the result is
3814 positive unless both parameters are zero.
3815 Previously something reasonably close to an infinite loop was
3816 possible because numbers could be growing instead of shrinking
3817 in the implementation of Euclid's algorithm.
3820 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3821 sign of the number in question.
3823 Fix BN_is_word(a,w) to work correctly for w == 0.
3825 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3826 because its test if the absolute value of 'a' equals 'w'.
3827 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3828 it exists mostly for use in the implementations of BN_is_zero(),
3829 BN_is_one(), and BN_is_word().
3832 *) New function BN_swap.
3835 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3836 the exponentiation functions are more likely to produce reasonable
3837 results on negative inputs.
3840 *) Change BN_mod_mul so that the result is always non-negative.
3841 Previously, it could be negative if one of the factors was negative;
3842 I don't think anyone really wanted that behaviour.
3845 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3846 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3847 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3848 and add new functions:
3857 BN_mod_lshift1_quick
3861 These functions always generate non-negative results.
3863 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3864 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3866 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3867 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3868 be reduced modulo m.
3869 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3872 The following entry accidentily appeared in the CHANGES file
3873 distributed with OpenSSL 0.9.7. The modifications described in
3874 it do *not* apply to OpenSSL 0.9.7.
3876 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3877 was actually never needed) and in BN_mul(). The removal in BN_mul()
3878 required a small change in bn_mul_part_recursive() and the addition
3879 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3880 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3881 bn_sub_words() and bn_add_words() except they take arrays with
3886 *) In 'openssl passwd', verify passwords read from the terminal
3887 unless the '-salt' option is used (which usually means that
3888 verification would just waste user's time since the resulting
3889 hash is going to be compared with some given password hash)
3890 or the new '-noverify' option is used.
3892 This is an incompatible change, but it does not affect
3893 non-interactive use of 'openssl passwd' (passwords on the command
3894 line, '-stdin' option, '-in ...' option) and thus should not
3898 *) Remove all references to RSAref, since there's no more need for it.
3901 *) Make DSO load along a path given through an environment variable
3902 (SHLIB_PATH) with shl_load().
3905 *) Constify the ENGINE code as a result of BIGNUM constification.
3906 Also constify the RSA code and most things related to it. In a
3907 few places, most notable in the depth of the ASN.1 code, ugly
3908 casts back to non-const were required (to be solved at a later
3912 *) Make it so the openssl application has all engines loaded by default.
3915 *) Constify the BIGNUM routines a little more.
3918 *) Add the following functions:
3920 ENGINE_load_cswift()
3922 ENGINE_load_atalla()
3924 ENGINE_load_builtin_engines()
3926 That way, an application can itself choose if external engines that
3927 are built-in in OpenSSL shall ever be used or not. The benefit is
3928 that applications won't have to be linked with libdl or other dso
3929 libraries unless it's really needed.
3931 Changed 'openssl engine' to load all engines on demand.
3932 Changed the engine header files to avoid the duplication of some
3933 declarations (they differed!).
3936 *) 'openssl engine' can now list capabilities.
3939 *) Better error reporting in 'openssl engine'.
3942 *) Never call load_dh_param(NULL) in s_server.
3945 *) Add engine application. It can currently list engines by name and
3946 identity, and test if they are actually available.
3949 *) Improve RPM specification file by forcing symbolic linking and making
3950 sure the installed documentation is also owned by root.root.
3951 [Damien Miller <djm@mindrot.org>]
3953 *) Give the OpenSSL applications more possibilities to make use of
3954 keys (public as well as private) handled by engines.
3957 *) Add OCSP code that comes from CertCo.
3960 *) Add VMS support for the Rijndael code.
3963 *) Added untested support for Nuron crypto accelerator.
3966 *) Add support for external cryptographic devices. This code was
3967 previously distributed separately as the "engine" branch.
3968 [Geoff Thorpe, Richard Levitte]
3970 *) Rework the filename-translation in the DSO code. It is now possible to
3971 have far greater control over how a "name" is turned into a filename
3972 depending on the operating environment and any oddities about the
3973 different shared library filenames on each system.
3976 *) Support threads on FreeBSD-elf in Configure.
3979 *) Fix for SHA1 assembly problem with MASM: it produces
3980 warnings about corrupt line number information when assembling
3981 with debugging information. This is caused by the overlapping
3983 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3986 NCONF_get_number() has no error checking at all. As a replacement,
3987 NCONF_get_number_e() is defined (_e for "error checking") and is
3988 promoted strongly. The old NCONF_get_number is kept around for
3989 binary backward compatibility.
3990 Make it possible for methods to load from something other than a BIO,
3991 by providing a function pointer that is given a name instead of a BIO.
3992 For example, this could be used to load configuration data from an
3996 *) Fix for non blocking accept BIOs. Added new I/O special reason
3997 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3998 with non blocking I/O was not possible because no retry code was
3999 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4003 *) Added the beginnings of Rijndael support.
4006 *) Fix for bug in DirectoryString mask setting. Add support for
4007 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4008 to allow certificate printing to more controllable, additional
4009 'certopt' option to 'x509' to allow new printing options to be
4013 *) Clean old EAY MD5 hack from e_os.h.
4016 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4018 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4019 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4020 [Joe Orton, Steve Henson]
4022 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4024 *) Fix additional bug revealed by the NISCC test suite:
4026 Stop bug triggering large recursion when presented with
4027 certain ASN.1 tags (CVE-2003-0851)
4030 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4032 *) Fix various bugs revealed by running the NISCC test suite:
4034 Stop out of bounds reads in the ASN1 code when presented with
4035 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4037 If verify callback ignores invalid public key errors don't try to check
4038 certificate signature with the NULL public key.
4042 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4043 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4047 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4048 extra data after the compression methods not only for TLS 1.0
4049 but also for SSL 3.0 (as required by the specification).
4050 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4052 *) Change X509_certificate_type() to mark the key as exported/exportable
4053 when it's 512 *bits* long, not 512 bytes.
4056 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4058 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4059 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4060 a protocol version number mismatch like a decryption error
4061 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4064 *) Turn on RSA blinding by default in the default implementation
4065 to avoid a timing attack. Applications that don't want it can call
4066 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4067 They would be ill-advised to do so in most cases.
4068 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4070 *) Change RSA blinding code so that it works when the PRNG is not
4071 seeded (in this case, the secret RSA exponent is abused as
4072 an unpredictable seed -- if it is not unpredictable, there
4073 is no point in blinding anyway). Make RSA blinding thread-safe
4074 by remembering the creator's thread ID in rsa->blinding and
4075 having all other threads use local one-time blinding factors
4076 (this requires more computation than sharing rsa->blinding, but
4077 avoids excessive locking; and if an RSA object is not shared
4078 between threads, blinding will still be very fast).
4081 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4083 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4084 via timing by performing a MAC computation even if incorrrect
4085 block cipher padding has been found. This is a countermeasure
4086 against active attacks where the attacker has to distinguish
4087 between bad padding and a MAC verification error. (CVE-2003-0078)
4089 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4090 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4091 Martin Vuagnoux (EPFL, Ilion)]
4093 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4095 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4096 memory from it's contents. This is done with a counter that will
4097 place alternating values in each byte. This can be used to solve
4098 two issues: 1) the removal of calls to memset() by highly optimizing
4099 compilers, and 2) cleansing with other values than 0, since those can
4100 be read through on certain media, for example a swap space on disk.
4103 *) Bugfix: client side session caching did not work with external caching,
4104 because the session->cipher setting was not restored when reloading
4105 from the external cache. This problem was masked, when
4106 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4107 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4110 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4111 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4112 [Zeev Lieber <zeev-l@yahoo.com>]
4114 *) Undo an undocumented change introduced in 0.9.6e which caused
4115 repeated calls to OpenSSL_add_all_ciphers() and
4116 OpenSSL_add_all_digests() to be ignored, even after calling
4120 *) Change the default configuration reader to deal with last line not
4121 being properly terminated.
4124 *) Change X509_NAME_cmp() so it applies the special rules on handling
4125 DN values that are of type PrintableString, as well as RDNs of type
4126 emailAddress where the value has the type ia5String.
4127 [stefank@valicert.com via Richard Levitte]
4129 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4130 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4131 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4132 the bitwise-OR of the two for use by the majority of applications
4133 wanting this behaviour, and update the docs. The documented
4134 behaviour and actual behaviour were inconsistent and had been
4135 changing anyway, so this is more a bug-fix than a behavioural
4137 [Geoff Thorpe, diagnosed by Nadav Har'El]
4139 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4140 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4143 *) Fix initialization code race conditions in
4144 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4145 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4146 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4147 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4148 ssl2_get_cipher_by_char(),
4149 ssl3_get_cipher_by_char().
4150 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4152 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4153 the cached sessions are flushed, as the remove_cb() might use ex_data
4154 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4155 (see [openssl.org #212]).
4156 [Geoff Thorpe, Lutz Jaenicke]
4158 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4159 length, instead of the encoding length to d2i_ASN1_OBJECT.
4162 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4164 *) [In 0.9.6g-engine release:]
4165 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4166 [Lynn Gazis <lgazis@rainbow.com>]
4168 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4170 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4171 and get fix the header length calculation.
4172 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4173 Alon Kantor <alonk@checkpoint.com> (and others),
4176 *) Use proper error handling instead of 'assertions' in buffer
4177 overflow checks added in 0.9.6e. This prevents DoS (the
4178 assertions could call abort()).
4179 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4181 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4183 *) Add various sanity checks to asn1_get_length() to reject
4184 the ASN1 length bytes if they exceed sizeof(long), will appear
4185 negative or the content length exceeds the length of the
4187 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4189 *) Fix cipher selection routines: ciphers without encryption had no flags
4190 for the cipher strength set and where therefore not handled correctly
4191 by the selection routines (PR #130).
4194 *) Fix EVP_dsa_sha macro.
4198 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4199 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4200 that was added in OpenSSL 0.9.6d.
4202 As the countermeasure turned out to be incompatible with some
4203 broken SSL implementations, the new option is part of SSL_OP_ALL.
4204 SSL_OP_ALL is usually employed when compatibility with weird SSL
4205 implementations is desired (e.g. '-bugs' option to 's_client' and
4206 's_server'), so the new option is automatically set in many
4210 *) Changes in security patch:
4212 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4213 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4214 Air Force Materiel Command, USAF, under agreement number
4217 *) Add various sanity checks to asn1_get_length() to reject
4218 the ASN1 length bytes if they exceed sizeof(long), will appear
4219 negative or the content length exceeds the length of the
4220 supplied buffer. (CVE-2002-0659)
4221 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4223 *) Assertions for various potential buffer overflows, not known to
4225 [Ben Laurie (CHATS)]
4227 *) Various temporary buffers to hold ASCII versions of integers were
4228 too small for 64 bit platforms. (CVE-2002-0655)
4229 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4231 *) Remote buffer overflow in SSL3 protocol - an attacker could
4232 supply an oversized session ID to a client. (CVE-2002-0656)
4233 [Ben Laurie (CHATS)]
4235 *) Remote buffer overflow in SSL2 protocol - an attacker could
4236 supply an oversized client master key. (CVE-2002-0656)
4237 [Ben Laurie (CHATS)]
4239 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4241 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4242 encoded as NULL) with id-dsa-with-sha1.
4243 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4245 *) Check various X509_...() return values in apps/req.c.
4246 [Nils Larsch <nla@trustcenter.de>]
4248 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4249 an end-of-file condition would erronously be flagged, when the CRLF
4250 was just at the end of a processed block. The bug was discovered when
4251 processing data through a buffering memory BIO handing the data to a
4252 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4253 <ptsekov@syntrex.com> and Nedelcho Stanev.
4256 *) Implement a countermeasure against a vulnerability recently found
4257 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4258 before application data chunks to avoid the use of known IVs
4259 with data potentially chosen by the attacker.
4262 *) Fix length checks in ssl3_get_client_hello().
4265 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4266 to prevent ssl3_read_internal() from incorrectly assuming that
4267 ssl3_read_bytes() found application data while handshake
4268 processing was enabled when in fact s->s3->in_read_app_data was
4269 merely automatically cleared during the initial handshake.
4270 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4272 *) Fix object definitions for Private and Enterprise: they were not
4273 recognized in their shortname (=lowercase) representation. Extend
4274 obj_dat.pl to issue an error when using undefined keywords instead
4275 of silently ignoring the problem (Svenning Sorensen
4276 <sss@sss.dnsalias.net>).
4279 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4280 generators, i.e. generators other than 2 and 5. (Previously, the
4281 code did not properly initialise the 'add' and 'rem' values to
4282 BN_generate_prime().)
4284 In the new general case, we do not insist that 'generator' is
4285 actually a primitive root: This requirement is rather pointless;
4286 a generator of the order-q subgroup is just as good, if not
4290 *) Map new X509 verification errors to alerts. Discovered and submitted by
4291 Tom Wu <tom@arcot.com>.
4294 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4295 returning non-zero before the data has been completely received
4296 when using non-blocking I/O.
4297 [Bodo Moeller; problem pointed out by John Hughes]
4299 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4300 [Ben Laurie, Lutz Jaenicke]
4302 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4303 Yoram Zahavi <YoramZ@gilian.com>).
4306 *) Add information about CygWin 1.3 and on, and preserve proper
4307 configuration for the versions before that.
4308 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4310 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4311 check whether we deal with a copy of a session and do not delete from
4312 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4313 <izhar@checkpoint.com>.
4316 *) Do not store session data into the internal session cache, if it
4317 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4318 flag is set). Proposed by Aslam <aslam@funk.com>.
4321 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4325 *) [In 0.9.6d-engine release:]
4326 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4327 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4329 *) Add the configuration target linux-s390x.
4330 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4332 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4333 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4334 variable as an indication that a ClientHello message has been
4335 received. As the flag value will be lost between multiple
4336 invocations of ssl3_accept when using non-blocking I/O, the
4337 function may not be aware that a handshake has actually taken
4338 place, thus preventing a new session from being added to the
4341 To avoid this problem, we now set s->new_session to 2 instead of
4342 using a local variable.
4343 [Lutz Jaenicke, Bodo Moeller]
4345 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4346 if the SSL_R_LENGTH_MISMATCH error is detected.
4347 [Geoff Thorpe, Bodo Moeller]
4349 *) New 'shared_ldflag' column in Configure platform table.
4352 *) Fix EVP_CIPHER_mode macro.
4353 ["Dan S. Camper" <dan@bti.net>]
4355 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4356 type, we must throw them away by setting rr->length to 0.
4357 [D P Chang <dpc@qualys.com>]
4359 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4361 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4362 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4363 worked incorrectly for those cases where range = 10..._2 and
4364 3*range is two bits longer than range.)
4367 *) Only add signing time to PKCS7 structures if it is not already
4371 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4372 OBJ_ld_ce should be OBJ_id_ce.
4373 Also some ip-pda OIDs in crypto/objects/objects.txt were
4374 incorrect (cf. RFC 3039).
4375 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4377 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4378 returns early because it has nothing to do.
4379 [Andy Schneider <andy.schneider@bjss.co.uk>]
4381 *) [In 0.9.6c-engine release:]
4382 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4383 [Andy Schneider <andy.schneider@bjss.co.uk>]
4385 *) [In 0.9.6c-engine release:]
4386 Add support for Cryptographic Appliance's keyserver technology.
4387 (Use engine 'keyclient')
4388 [Cryptographic Appliances and Geoff Thorpe]
4390 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4391 is called via tools/c89.sh because arguments have to be
4392 rearranged (all '-L' options must appear before the first object
4394 [Richard Shapiro <rshapiro@abinitio.com>]
4396 *) [In 0.9.6c-engine release:]
4397 Add support for Broadcom crypto accelerator cards, backported
4399 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4401 *) [In 0.9.6c-engine release:]
4402 Add support for SureWare crypto accelerator cards from
4403 Baltimore Technologies. (Use engine 'sureware')
4404 [Baltimore Technologies and Mark Cox]
4406 *) [In 0.9.6c-engine release:]
4407 Add support for crypto accelerator cards from Accelerated
4408 Encryption Processing, www.aep.ie. (Use engine 'aep')
4409 [AEP Inc. and Mark Cox]
4411 *) Add a configuration entry for gcc on UnixWare.
4412 [Gary Benson <gbenson@redhat.com>]
4414 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4415 messages are stored in a single piece (fixed-length part and
4416 variable-length part combined) and fix various bugs found on the way.
4419 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4420 instead. BIO_gethostbyname() does not know what timeouts are
4421 appropriate, so entries would stay in cache even when they have
4423 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4425 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4426 faced with a pathologically small ClientHello fragment that does
4427 not contain client_version: Instead of aborting with an error,
4428 simply choose the highest available protocol version (i.e.,
4429 TLS 1.0 unless it is disabled). In practice, ClientHello
4430 messages are never sent like this, but this change gives us
4431 strictly correct behaviour at least for TLS.
4434 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4435 never resets s->method to s->ctx->method when called from within
4436 one of the SSL handshake functions.
4437 [Bodo Moeller; problem pointed out by Niko Baric]
4439 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4440 (sent using the client's version number) if client_version is
4441 smaller than the protocol version in use. Also change
4442 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4443 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4444 the client will at least see that alert.
4447 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4451 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4452 client receives HelloRequest while in a handshake.
4453 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4455 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4456 should end in 'break', not 'goto end' which circuments various
4457 cleanups done in state SSL_ST_OK. But session related stuff
4458 must be disabled for SSL_ST_OK in the case that we just sent a
4461 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4462 before just sending a HelloRequest.
4463 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4465 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4466 reveal whether illegal block cipher padding was found or a MAC
4467 verification error occured. (Neither SSLerr() codes nor alerts
4468 are directly visible to potential attackers, but the information
4469 may leak via logfiles.)
4471 Similar changes are not required for the SSL 2.0 implementation
4472 because the number of padding bytes is sent in clear for SSL 2.0,
4473 and the extra bytes are just ignored. However ssl/s2_pkt.c
4474 failed to verify that the purported number of padding bytes is in
4478 *) Add OpenUNIX-8 support including shared libraries
4479 (Boyd Lynn Gerber <gerberb@zenez.com>).
4482 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4483 'wristwatch attack' using huge encoding parameters (cf.
4484 James H. Manger's CRYPTO 2001 paper). Note that the
4485 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4486 encoding parameters and hence was not vulnerable.
4489 *) BN_sqr() bug fix.
4490 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4492 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4493 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4494 followed by modular reduction.
4495 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4497 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4498 equivalent based on BN_pseudo_rand() instead of BN_rand().
4501 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4502 This function was broken, as the check for a new client hello message
4503 to handle SGC did not allow these large messages.
4504 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4507 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4510 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4511 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4514 *) Rework the configuration and shared library support for Tru64 Unix.
4515 The configuration part makes use of modern compiler features and
4516 still retains old compiler behavior for those that run older versions
4517 of the OS. The shared library support part includes a variant that
4518 uses the RPATH feature, and is available through the special
4519 configuration target "alpha-cc-rpath", which will never be selected
4521 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4523 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4524 with the same message size as in ssl3_get_certificate_request().
4525 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4526 messages might inadvertently be reject as too long.
4527 [Petr Lampa <lampa@fee.vutbr.cz>]
4529 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4532 *) Modified SSL library such that the verify_callback that has been set
4533 specificly for an SSL object with SSL_set_verify() is actually being
4534 used. Before the change, a verify_callback set with this function was
4535 ignored and the verify_callback() set in the SSL_CTX at the time of
4536 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4537 to allow the necessary settings.
4540 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4541 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4542 done automatically (in contradiction to the requirements of the C
4543 standard). This made problems when used from OpenSSH.
4546 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4547 dh->length and always used
4549 BN_rand_range(priv_key, dh->p).
4551 BN_rand_range() is not necessary for Diffie-Hellman, and this
4552 specific range makes Diffie-Hellman unnecessarily inefficient if
4553 dh->length (recommended exponent length) is much smaller than the
4554 length of dh->p. We could use BN_rand_range() if the order of
4555 the subgroup was stored in the DH structure, but we only have
4560 BN_rand(priv_key, l, ...)
4562 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4568 RSA_eay_public_encrypt
4569 RSA_eay_private_decrypt
4570 RSA_eay_private_encrypt (signing)
4571 RSA_eay_public_decrypt (signature verification)
4573 (default implementations for RSA_public_encrypt,
4574 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4575 always reject numbers >= n.
4578 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4579 to synchronize access to 'locking_thread'. This is necessary on
4580 systems where access to 'locking_thread' (an 'unsigned long'
4581 variable) is not atomic.
4584 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4585 *before* setting the 'crypto_lock_rand' flag. The previous code had
4586 a race condition if 0 is a valid thread ID.
4587 [Travis Vitek <vitek@roguewave.com>]
4589 *) Add support for shared libraries under Irix.
4590 [Albert Chin-A-Young <china@thewrittenword.com>]
4592 *) Add configuration option to build on Linux on both big-endian and
4594 [Ralf Baechle <ralf@uni-koblenz.de>]
4596 *) Add the possibility to create shared libraries on HP-UX.
4599 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4601 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4602 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4603 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4604 PRNG state recovery was possible based on the output of
4605 one PRNG request appropriately sized to gain knowledge on
4606 'md' followed by enough consecutive 1-byte PRNG requests
4607 to traverse all of 'state'.
4609 1. When updating 'md_local' (the current thread's copy of 'md')
4610 during PRNG output generation, hash all of the previous
4611 'md_local' value, not just the half used for PRNG output.
4613 2. Make the number of bytes from 'state' included into the hash
4614 independent from the number of PRNG bytes requested.
4616 The first measure alone would be sufficient to avoid
4617 Markku-Juhani's attack. (Actually it had never occurred
4618 to me that the half of 'md_local' used for chaining was the
4619 half from which PRNG output bytes were taken -- I had always
4620 assumed that the secret half would be used.) The second
4621 measure makes sure that additional data from 'state' is never
4622 mixed into 'md_local' in small portions; this heuristically
4623 further strengthens the PRNG.
4626 *) Fix crypto/bn/asm/mips3.s.
4629 *) When only the key is given to "enc", the IV is undefined. Print out
4630 an error message in this case.
4633 *) Handle special case when X509_NAME is empty in X509 printing routines.
4636 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4637 positive and less than q.
4640 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4641 used: it isn't thread safe and the add_lock_callback should handle
4643 [Paul Rose <Paul.Rose@bridge.com>]
4645 *) Verify that incoming data obeys the block size in
4646 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4650 [Ulf Möller, Bodo Möller]
4652 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4653 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4654 when fixing the server behaviour for backwards-compatible 'client
4655 hello' messages. (Note that the attack is impractical against
4656 SSL 3.0 and TLS 1.0 anyway because length and version checking
4657 means that the probability of guessing a valid ciphertext is
4658 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4661 Before 0.9.5, the countermeasure (hide the error by generating a
4662 random 'decryption result') did not work properly because
4663 ERR_clear_error() was missing, meaning that SSL_get_error() would
4664 detect the supposedly ignored error.
4666 Both problems are now fixed.
4669 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4670 (previously it was 1024).
4673 *) Fix for compatibility mode trust settings: ignore trust settings
4674 unless some valid trust or reject settings are present.
4677 *) Fix for blowfish EVP: its a variable length cipher.
4680 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4681 parameters in DSA public key structures and return an error in the
4682 DSA routines if parameters are absent.
4685 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4686 in the current directory if neither $RANDFILE nor $HOME was set.
4687 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4688 caused some confusion to Windows users who haven't defined $HOME.
4689 Thus RAND_file_name() is changed again: e_os.h can define a
4690 DEFAULT_HOME, which will be used if $HOME is not set.
4691 For Windows, we use "C:"; on other platforms, we still require
4692 environment variables.
4694 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4695 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4696 having multiple threads call RAND_poll() concurrently.
4699 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4700 combination of a flag and a thread ID variable.
4701 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4702 flag), *other* threads can enter ssleay_add_bytes without obeying
4703 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4704 that they do not hold after the first thread unsets add_do_not_lock).
4707 *) Change bctest again: '-x' expressions are not available in all
4711 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4713 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4714 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4716 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4717 the default extension for executables, if any. Also, make the perl
4718 scripts that use symlink() to test if it really exists and use "cp"
4719 if it doesn't. All this made OpenSSL compilable and installable in
4723 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4724 If SEQUENCE is length is indefinite just set c->slen to the total
4725 amount of data available.
4726 [Steve Henson, reported by shige@FreeBSD.org]
4727 [This change does not apply to 0.9.7.]
4729 *) Change bctest to avoid here-documents inside command substitution
4730 (workaround for FreeBSD /bin/sh bug).
4731 For compatibility with Ultrix, avoid shell functions (introduced
4732 in the bctest version that searches along $PATH).
4735 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4736 with des_encrypt() defined on some operating systems, like Solaris
4740 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4741 On the Importance of Eliminating Errors in Cryptographic
4742 Computations, J. Cryptology 14 (2001) 2, 101-119,
4743 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4746 *) MIPS assembler BIGNUM division bug fix.
4749 *) Disabled incorrect Alpha assembler code.
4752 *) Fix PKCS#7 decode routines so they correctly update the length
4753 after reading an EOC for the EXPLICIT tag.
4755 [This change does not apply to 0.9.7.]
4757 *) Fix bug in PKCS#12 key generation routines. This was triggered
4758 if a 3DES key was generated with a 0 initial byte. Include
4759 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4760 (but broken) behaviour.
4763 *) Enhance bctest to search for a working bc along $PATH and print
4765 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4767 *) Fix memory leaks in err.c: free err_data string if necessary;
4768 don't write to the wrong index in ERR_set_error_data.
4771 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4775 *) Replace rdtsc with _emit statements for VC++ version 5.
4776 [Jeremy Cooper <jeremy@baymoo.org>]
4778 *) Make it possible to reuse SSLv2 sessions.
4781 *) In copy_email() check for >= 0 as a return value for
4782 X509_NAME_get_index_by_NID() since 0 is a valid index.
4783 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4785 *) Avoid coredump with unsupported or invalid public keys by checking if
4786 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4787 PKCS7_verify() fails with non detached data.
4790 *) Don't use getenv in library functions when run as setuid/setgid.
4791 New function OPENSSL_issetugid().
4794 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4795 due to incorrect handling of multi-threading:
4797 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4799 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4801 3. Count how many times MemCheck_off() has been called so that
4802 nested use can be treated correctly. This also avoids
4803 inband-signalling in the previous code (which relied on the
4804 assumption that thread ID 0 is impossible).
4807 *) Add "-rand" option also to s_client and s_server.
4810 *) Fix CPU detection on Irix 6.x.
4811 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4812 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4814 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4817 [This change does not apply to 0.9.7.]
4819 *) Use the cached encoding of an X509_NAME structure rather than
4820 copying it. This is apparently the reason for the libsafe "errors"
4821 but the code is actually correct.
4824 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4825 Bleichenbacher's DSA attack.
4826 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4827 to be set and top=0 forces the highest bit to be set; top=-1 is new
4828 and leaves the highest bit random.
4829 [Ulf Moeller, Bodo Moeller]
4831 *) In the NCONF_...-based implementations for CONF_... queries
4832 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4833 a temporary CONF structure with the data component set to NULL
4834 (which gives segmentation faults in lh_retrieve).
4835 Instead, use NULL for the CONF pointer in CONF_get_string and
4836 CONF_get_number (which may use environment variables) and directly
4837 return NULL from CONF_get_section.
4840 *) Fix potential buffer overrun for EBCDIC.
4843 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4844 keyUsage if basicConstraints absent for a CA.
4847 *) Make SMIME_write_PKCS7() write mail header values with a format that
4848 is more generally accepted (no spaces before the semicolon), since
4849 some programs can't parse those values properly otherwise. Also make
4850 sure BIO's that break lines after each write do not create invalid
4854 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4855 macros previously used would not encode an empty SEQUENCE OF
4856 and break the signature.
4858 [This change does not apply to 0.9.7.]
4860 *) Zero the premaster secret after deriving the master secret in
4864 *) Add some EVP_add_digest_alias registrations (as found in
4865 OpenSSL_add_all_digests()) to SSL_library_init()
4866 aka OpenSSL_add_ssl_algorithms(). This provides improved
4867 compatibility with peers using X.509 certificates
4868 with unconventional AlgorithmIdentifier OIDs.
4871 *) Fix for Irix with NO_ASM.
4872 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4874 *) ./config script fixes.
4875 [Ulf Moeller, Richard Levitte]
4877 *) Fix 'openssl passwd -1'.
4880 *) Change PKCS12_key_gen_asc() so it can cope with non null
4881 terminated strings whose length is passed in the passlen
4882 parameter, for example from PEM callbacks. This was done
4883 by adding an extra length parameter to asc2uni().
4884 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4886 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4887 call failed, free the DSA structure.
4890 *) Fix to uni2asc() to cope with zero length Unicode strings.
4891 These are present in some PKCS#12 files.
4894 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4895 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4896 when writing a 32767 byte record.
4897 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4899 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4900 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4902 (RSA objects have a reference count access to which is protected
4903 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4904 so they are meant to be shared between threads.)
4905 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4906 "Reddie, Steven" <Steven.Reddie@ca.com>]
4908 *) Fix a deadlock in CRYPTO_mem_leaks().
4911 *) Use better test patterns in bntest.
4914 *) rand_win.c fix for Borland C.
4917 *) BN_rshift bugfix for n == 0.
4920 *) Add a 'bctest' script that checks for some known 'bc' bugs
4921 so that 'make test' does not abort just because 'bc' is broken.
4924 *) Store verify_result within SSL_SESSION also for client side to
4925 avoid potential security hole. (Re-used sessions on the client side
4926 always resulted in verify_result==X509_V_OK, not using the original
4927 result of the server certificate verification.)
4930 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4931 SSL3_RT_APPLICATION_DATA, return 0.
4932 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4936 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4937 releases, have been re-implemented by renaming the previous
4938 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4939 and ssl3_read_internal, respectively, and adding 'peek' parameters
4940 to them. The new ssl[23]_{read,peek} functions are calls to
4941 ssl[23]_read_internal with the 'peek' flag set appropriately.
4942 A 'peek' parameter has also been added to ssl3_read_bytes, which
4943 does the actual work for ssl3_read_internal.
4946 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4947 the method-specific "init()" handler. Also clean up ex_data after
4948 calling the method-specific "finish()" handler. Previously, this was
4949 happening the other way round.
4952 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4953 The previous value, 12, was not always sufficient for BN_mod_exp().
4956 *) Make sure that shared libraries get the internal name engine with
4957 the full version number and not just 0. This should mark the
4958 shared libraries as not backward compatible. Of course, this should
4959 be changed again when we can guarantee backward binary compatibility.
4962 *) Fix typo in get_cert_by_subject() in by_dir.c
4963 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4965 *) Rework the system to generate shared libraries:
4967 - Make note of the expected extension for the shared libraries and
4968 if there is a need for symbolic links from for example libcrypto.so.0
4969 to libcrypto.so.0.9.7. There is extended info in Configure for
4972 - Make as few rebuilds of the shared libraries as possible.
4974 - Still avoid linking the OpenSSL programs with the shared libraries.
4976 - When installing, install the shared libraries separately from the
4980 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4982 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4983 and not in SSL_clear because the latter is also used by the
4984 accept/connect functions; previously, the settings made by
4985 SSL_set_read_ahead would be lost during the handshake.
4986 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4988 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4989 Previously, it would create entries for disableed algorithms no
4993 *) Added several new manual pages for SSL_* function.
4996 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4998 *) In ssl23_get_client_hello, generate an error message when faced
4999 with an initial SSL 3.0/TLS record that is too small to contain the
5000 first two bytes of the ClientHello message, i.e. client_version.
5001 (Note that this is a pathologic case that probably has never happened
5002 in real life.) The previous approach was to use the version number
5003 from the record header as a substitute; but our protocol choice
5004 should not depend on that one because it is not authenticated
5005 by the Finished messages.
5008 *) More robust randomness gathering functions for Windows.
5009 [Jeffrey Altman <jaltman@columbia.edu>]
5011 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5012 not set then we don't setup the error code for issuer check errors
5013 to avoid possibly overwriting other errors which the callback does
5014 handle. If an application does set the flag then we assume it knows
5015 what it is doing and can handle the new informational codes
5019 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5020 a general "ANY" type, as such it should be able to decode anything
5021 including tagged types. However it didn't check the class so it would
5022 wrongly interpret tagged types in the same way as their universal
5023 counterpart and unknown types were just rejected. Changed so that the
5024 tagged and unknown types are handled in the same way as a SEQUENCE:
5025 that is the encoding is stored intact. There is also a new type
5026 "V_ASN1_OTHER" which is used when the class is not universal, in this
5027 case we have no idea what the actual type is so we just lump them all
5031 *) On VMS, stdout may very well lead to a file that is written to
5032 in a record-oriented fashion. That means that every write() will
5033 write a separate record, which will be read separately by the
5034 programs trying to read from it. This can be very confusing.
5036 The solution is to put a BIO filter in the way that will buffer
5037 text until a linefeed is reached, and then write everything a
5038 line at a time, so every record written will be an actual line,
5039 not chunks of lines and not (usually doesn't happen, but I've
5040 seen it once) several lines in one record. BIO_f_linebuffer() is
5043 Currently, it's a VMS-only method, because that's where it has
5044 been tested well enough.
5047 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5048 it can return incorrect results.
5049 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5050 but it was in 0.9.6-beta[12].)
5053 *) Disable the check for content being present when verifying detached
5054 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5055 include zero length content when signing messages.
5058 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5059 BIO_ctrl (for BIO pairs).
5062 *) Add DSO method for VMS.
5065 *) Bug fix: Montgomery multiplication could produce results with the
5069 *) Add RPM specification openssl.spec and modify it to build three
5070 packages. The default package contains applications, application
5071 documentation and run-time libraries. The devel package contains
5072 include files, static libraries and function documentation. The
5073 doc package contains the contents of the doc directory. The original
5074 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5077 *) Add a large number of documentation files for many SSL routines.
5078 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5080 *) Add a configuration entry for Sony News 4.
5081 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5083 *) Don't set the two most significant bits to one when generating a
5084 random number < q in the DSA library.
5087 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5088 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5089 the underlying transport is blocking) if a handshake took place.
5090 (The default behaviour is needed by applications such as s_client
5091 and s_server that use select() to determine when to use SSL_read;
5092 but for applications that know in advance when to expect data, it
5093 just makes things more complicated.)
5096 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5100 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5101 work better on such systems.
5102 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5104 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5105 Update PKCS12_parse() so it copies the friendlyName and the
5106 keyid to the certificates aux info.
5109 *) Fix bug in PKCS7_verify() which caused an infinite loop
5110 if there was more than one signature.
5111 [Sven Uszpelkat <su@celocom.de>]
5113 *) Major change in util/mkdef.pl to include extra information
5114 about each symbol, as well as presentig variables as well
5115 as functions. This change means that there's n more need
5116 to rebuild the .num files when some algorithms are excluded.
5119 *) Allow the verify time to be set by an application,
5120 rather than always using the current time.
5123 *) Phase 2 verify code reorganisation. The certificate
5124 verify code now looks up an issuer certificate by a
5125 number of criteria: subject name, authority key id
5126 and key usage. It also verifies self signed certificates
5127 by the same criteria. The main comparison function is
5128 X509_check_issued() which performs these checks.
5130 Lot of changes were necessary in order to support this
5131 without completely rewriting the lookup code.
5133 Authority and subject key identifier are now cached.
5135 The LHASH 'certs' is X509_STORE has now been replaced
5136 by a STACK_OF(X509_OBJECT). This is mainly because an
5137 LHASH can't store or retrieve multiple objects with
5138 the same hash value.
5140 As a result various functions (which were all internal
5141 use only) have changed to handle the new X509_STORE
5142 structure. This will break anything that messed round
5143 with X509_STORE internally.
5145 The functions X509_STORE_add_cert() now checks for an
5146 exact match, rather than just subject name.
5148 The X509_STORE API doesn't directly support the retrieval
5149 of multiple certificates matching a given criteria, however
5150 this can be worked round by performing a lookup first
5151 (which will fill the cache with candidate certificates)
5152 and then examining the cache for matches. This is probably
5153 the best we can do without throwing out X509_LOOKUP
5154 entirely (maybe later...).
5156 The X509_VERIFY_CTX structure has been enhanced considerably.
5158 All certificate lookup operations now go via a get_issuer()
5159 callback. Although this currently uses an X509_STORE it
5160 can be replaced by custom lookups. This is a simple way
5161 to bypass the X509_STORE hackery necessary to make this
5162 work and makes it possible to use more efficient techniques
5163 in future. A very simple version which uses a simple
5164 STACK for its trusted certificate store is also provided
5165 using X509_STORE_CTX_trusted_stack().
5167 The verify_cb() and verify() callbacks now have equivalents
5168 in the X509_STORE_CTX structure.
5170 X509_STORE_CTX also has a 'flags' field which can be used
5171 to customise the verify behaviour.
5174 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5175 excludes S/MIME capabilities.
5178 *) When a certificate request is read in keep a copy of the
5179 original encoding of the signed data and use it when outputing
5180 again. Signatures then use the original encoding rather than
5181 a decoded, encoded version which may cause problems if the
5182 request is improperly encoded.
5185 *) For consistency with other BIO_puts implementations, call
5186 buffer_write(b, ...) directly in buffer_puts instead of calling
5189 In BIO_puts, increment b->num_write as in BIO_write.
5190 [Peter.Sylvester@EdelWeb.fr]
5192 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5193 BN_zero, we may not return a BIGNUM with an array consisting of
5197 *) Avoid calling abort() from within the library when problems are
5198 detected, except if preprocessor symbols have been defined
5199 (such as REF_CHECK, BN_DEBUG etc.).
5202 *) New openssl application 'rsautl'. This utility can be
5203 used for low level RSA operations. DER public key
5204 BIO/fp routines also added.
5207 *) New Configure entry and patches for compiling on QNX 4.
5208 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5210 *) A demo state-machine implementation was sponsored by
5211 Nuron (http://www.nuron.com/) and is now available in
5212 demos/state_machine.
5215 *) New options added to the 'dgst' utility for signature
5216 generation and verification.
5219 *) Unrecognized PKCS#7 content types are now handled via a
5220 catch all ASN1_TYPE structure. This allows unsupported
5221 types to be stored as a "blob" and an application can
5222 encode and decode it manually.
5225 *) Fix various signed/unsigned issues to make a_strex.c
5227 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5229 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5230 length if passed a buffer. ASN1_INTEGER_to_BN failed
5231 if passed a NULL BN and its argument was negative.
5232 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5234 *) Modification to PKCS#7 encoding routines to output definite
5235 length encoding. Since currently the whole structures are in
5236 memory there's not real point in using indefinite length
5237 constructed encoding. However if OpenSSL is compiled with
5238 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5241 *) Added BIO_vprintf() and BIO_vsnprintf().
5244 *) Added more prefixes to parse for in the the strings written
5245 through a logging bio, to cover all the levels that are available
5246 through syslog. The prefixes are now:
5248 PANIC, EMERG, EMR => LOG_EMERG
5249 ALERT, ALR => LOG_ALERT
5250 CRIT, CRI => LOG_CRIT
5251 ERROR, ERR => LOG_ERR
5252 WARNING, WARN, WAR => LOG_WARNING
5253 NOTICE, NOTE, NOT => LOG_NOTICE
5254 INFO, INF => LOG_INFO
5255 DEBUG, DBG => LOG_DEBUG
5257 and as before, if none of those prefixes are present at the
5258 beginning of the string, LOG_ERR is chosen.
5260 On Win32, the LOG_* levels are mapped according to this:
5262 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5263 LOG_WARNING => EVENTLOG_WARNING_TYPE
5264 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5268 *) Made it possible to reconfigure with just the configuration
5269 argument "reconf" or "reconfigure". The command line arguments
5270 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5271 and are retrieved from there when reconfiguring.
5275 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5277 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5280 *) The obj_dat.pl script was messing up the sorting of object
5281 names. The reason was that it compared the quoted version
5282 of strings as a result "OCSP" > "OCSP Signing" because
5283 " > SPACE. Changed script to store unquoted versions of
5284 names and add quotes on output. It was also omitting some
5285 names from the lookup table if they were given a default
5286 value (that is if SN is missing it is given the same
5287 value as LN and vice versa), these are now added on the
5288 grounds that if an object has a name we should be able to
5289 look it up. Finally added warning output when duplicate
5290 short or long names are found.
5293 *) Changes needed for Tandem NSK.
5294 [Scott Uroff <scott@xypro.com>]
5296 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5297 RSA_padding_check_SSLv23(), special padding was never detected
5298 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5299 version rollback attacks was not effective.
5301 In s23_clnt.c, don't use special rollback-attack detection padding
5302 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5303 client; similarly, in s23_srvr.c, don't do the rollback check if
5304 SSL 2.0 is the only protocol enabled in the server.
5307 *) Make it possible to get hexdumps of unprintable data with 'openssl
5308 asn1parse'. By implication, the functions ASN1_parse_dump() and
5309 BIO_dump_indent() are added.
5312 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5313 these print out strings and name structures based on various
5314 flags including RFC2253 support and proper handling of
5315 multibyte characters. Added options to the 'x509' utility
5316 to allow the various flags to be set.
5319 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5320 Also change the functions X509_cmp_current_time() and
5321 X509_gmtime_adj() work with an ASN1_TIME structure,
5322 this will enable certificates using GeneralizedTime in validity
5323 dates to be checked.
5326 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5327 negative public key encodings) on by default,
5328 NO_NEG_PUBKEY_BUG can be set to disable it.
5331 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5332 content octets. An i2c_ASN1_OBJECT is unnecessary because
5333 the encoding can be trivially obtained from the structure.
5336 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5337 not read locks (CRYPTO_r_[un]lock).
5340 *) A first attempt at creating official support for shared
5341 libraries through configuration. I've kept it so the
5342 default is static libraries only, and the OpenSSL programs
5343 are always statically linked for now, but there are
5344 preparations for dynamic linking in place.
5345 This has been tested on Linux and Tru64.
5348 *) Randomness polling function for Win9x, as described in:
5349 Peter Gutmann, Software Generation of Practically Strong
5353 *) Fix so PRNG is seeded in req if using an already existing
5357 *) New options to smime application. -inform and -outform
5358 allow alternative formats for the S/MIME message including
5359 PEM and DER. The -content option allows the content to be
5360 specified separately. This should allow things like Netscape
5361 form signing output easier to verify.
5364 *) Fix the ASN1 encoding of tags using the 'long form'.
5367 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5368 STRING types. These convert content octets to and from the
5369 underlying type. The actual tag and length octets are
5370 already assumed to have been read in and checked. These
5371 are needed because all other string types have virtually
5372 identical handling apart from the tag. By having versions
5373 of the ASN1 functions that just operate on content octets
5374 IMPLICIT tagging can be handled properly. It also allows
5375 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5376 and ASN1_INTEGER are identical apart from the tag.
5379 *) Change the handling of OID objects as follows:
5381 - New object identifiers are inserted in objects.txt, following
5382 the syntax given in objects.README.
5383 - objects.pl is used to process obj_mac.num and create a new
5385 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5388 This is currently kind of a hack, and the perl code in objects.pl
5389 isn't very elegant, but it works as I intended. The simplest way
5390 to check that it worked correctly is to look in obj_dat.h and
5391 check the array nid_objs and make sure the objects haven't moved
5392 around (this is important!). Additions are OK, as well as
5393 consistent name changes.
5396 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5399 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5400 The given file adds to whatever has already been seeded into the
5401 random pool through the RANDFILE configuration file option or
5402 environment variable, or the default random state file.
5405 *) mkstack.pl now sorts each macro group into lexical order.
5406 Previously the output order depended on the order the files
5407 appeared in the directory, resulting in needless rewriting
5411 *) Patches to make OpenSSL compile under Win32 again. Mostly
5412 work arounds for the VC++ problem that it treats func() as
5413 func(void). Also stripped out the parts of mkdef.pl that
5414 added extra typesafe functions: these no longer exist.
5417 *) Reorganisation of the stack code. The macros are now all
5418 collected in safestack.h . Each macro is defined in terms of
5419 a "stack macro" of the form SKM_<name>(type, a, b). The
5420 DEBUG_SAFESTACK is now handled in terms of function casts,
5421 this has the advantage of retaining type safety without the
5422 use of additional functions. If DEBUG_SAFESTACK is not defined
5423 then the non typesafe macros are used instead. Also modified the
5424 mkstack.pl script to handle the new form. Needs testing to see
5425 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5426 the default if no major problems. Similar behaviour for ASN1_SET_OF
5427 and PKCS12_STACK_OF.
5430 *) When some versions of IIS use the 'NET' form of private key the
5431 key derivation algorithm is different. Normally MD5(password) is
5432 used as a 128 bit RC4 key. In the modified case
5433 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5434 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5435 as the old Netscape_RSA functions except they have an additional
5436 'sgckey' parameter which uses the modified algorithm. Also added
5437 an -sgckey command line option to the rsa utility. Thanks to
5438 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5439 algorithm to openssl-dev.
5442 *) The evp_local.h macros were using 'c.##kname' which resulted in
5443 invalid expansion on some systems (SCO 5.0.5 for example).
5444 Corrected to 'c.kname'.
5445 [Phillip Porch <root@theporch.com>]
5447 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5448 a STACK of email addresses from a certificate or request, these look
5449 in the subject name and the subject alternative name extensions and
5450 omit any duplicate addresses.
5453 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5454 This makes DSA verification about 2 % faster.
5457 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5458 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5459 plus overhead for 1024 bit moduli).
5460 This makes exponentiations about 0.5 % faster for 1024 bit
5461 exponents (as measured by "openssl speed rsa2048").
5464 *) Rename memory handling macros to avoid conflicts with other
5466 Malloc => OPENSSL_malloc
5467 Malloc_locked => OPENSSL_malloc_locked
5468 Realloc => OPENSSL_realloc
5469 Free => OPENSSL_free
5472 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5473 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5476 *) CygWin32 support.
5477 [John Jarvie <jjarvie@newsguy.com>]
5479 *) The type-safe stack code has been rejigged. It is now only compiled
5480 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5481 by default all type-specific stack functions are "#define"d back to
5482 standard stack functions. This results in more streamlined output
5483 but retains the type-safety checking possibilities of the original
5487 *) The STACK code has been cleaned up, and certain type declarations
5488 that didn't make a lot of sense have been brought in line. This has
5489 also involved a cleanup of sorts in safestack.h to more correctly
5490 map type-safe stack functions onto their plain stack counterparts.
5491 This work has also resulted in a variety of "const"ifications of
5492 lots of the code, especially "_cmp" operations which should normally
5493 be prototyped with "const" parameters anyway.
5496 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5497 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5498 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5499 where all of 'md' is used each time the PRNG is used, but 'state'
5500 is used only indexed by a cyclic counter. As entropy may not be
5501 well distributed from the beginning, 'md' is important as a
5502 chaining variable. However, the output function chains only half
5503 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5504 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5505 in all of 'state' being rewritten, with the new values depending
5506 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5509 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5510 the handshake is continued after ssl_verify_cert_chain();
5511 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5512 can lead to 'unexplainable' connection aborts later.
5513 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5515 *) Major EVP API cipher revision.
5516 Add hooks for extra EVP features. This allows various cipher
5517 parameters to be set in the EVP interface. Support added for variable
5518 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5519 setting of RC2 and RC5 parameters.
5521 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5524 Remove lots of duplicated code from the EVP library. For example *every*
5525 cipher init() function handles the 'iv' in the same way according to the
5526 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5527 for CFB and OFB modes they zero ctx->num.
5529 New functionality allows removal of S/MIME code RC2 hack.
5531 Most of the routines have the same form and so can be declared in terms
5534 By shifting this to the top level EVP_CipherInit() it can be removed from
5535 all individual ciphers. If the cipher wants to handle IVs or keys
5536 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5539 Change lots of functions like EVP_EncryptUpdate() to now return a
5540 value: although software versions of the algorithms cannot fail
5541 any installed hardware versions can.
5544 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5545 this option is set, tolerate broken clients that send the negotiated
5546 protocol version number instead of the requested protocol version
5550 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5551 i.e. non-zero for export ciphersuites, zero otherwise.
5552 Previous versions had this flag inverted, inconsistent with
5553 rsa_tmp_cb (..._TMP_RSA_CB).
5554 [Bodo Moeller; problem reported by Amit Chopra]
5556 *) Add missing DSA library text string. Work around for some IIS
5557 key files with invalid SEQUENCE encoding.
5560 *) Add a document (doc/standards.txt) that list all kinds of standards
5561 and so on that are implemented in OpenSSL.
5564 *) Enhance c_rehash script. Old version would mishandle certificates
5565 with the same subject name hash and wouldn't handle CRLs at all.
5566 Added -fingerprint option to crl utility, to support new c_rehash
5570 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5573 *) Fix for SSL server purpose checking. Server checking was
5574 rejecting certificates which had extended key usage present
5575 but no ssl client purpose.
5576 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5578 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5579 is a little unclear about how a blank password is handled.
5580 Since the password in encoded as a BMPString with terminating
5581 double NULL a zero length password would end up as just the
5582 double NULL. However no password at all is different and is
5583 handled differently in the PKCS#12 key generation code. NS
5584 treats a blank password as zero length. MSIE treats it as no
5585 password on export: but it will try both on import. We now do
5586 the same: PKCS12_parse() tries zero length and no password if
5587 the password is set to "" or NULL (NULL is now a valid password:
5588 it wasn't before) as does the pkcs12 application.
5591 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5592 perror when PEM_read_bio_X509_REQ fails, the error message must
5593 be obtained from the error queue.
5596 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5597 it in ERR_remove_state if appropriate, and change ERR_get_state
5598 accordingly to avoid race conditions (this is necessary because
5599 thread_hash is no longer constant once set).
5602 *) Bugfix for linux-elf makefile.one.
5605 *) RSA_get_default_method() will now cause a default
5606 RSA_METHOD to be chosen if one doesn't exist already.
5607 Previously this was only set during a call to RSA_new()
5608 or RSA_new_method(NULL) meaning it was possible for
5609 RSA_get_default_method() to return NULL.
5612 *) Added native name translation to the existing DSO code
5613 that will convert (if the flag to do so is set) filenames
5614 that are sufficiently small and have no path information
5615 into a canonical native form. Eg. "blah" converted to
5616 "libblah.so" or "blah.dll" etc.
5619 *) New function ERR_error_string_n(e, buf, len) which is like
5620 ERR_error_string(e, buf), but writes at most 'len' bytes
5621 including the 0 terminator. For ERR_error_string_n, 'buf'
5623 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5625 *) CONF library reworked to become more general. A new CONF
5626 configuration file reader "class" is implemented as well as a
5627 new functions (NCONF_*, for "New CONF") to handle it. The now
5628 old CONF_* functions are still there, but are reimplemented to
5629 work in terms of the new functions. Also, a set of functions
5630 to handle the internal storage of the configuration data is
5631 provided to make it easier to write new configuration file
5632 reader "classes" (I can definitely see something reading a
5633 configuration file in XML format, for example), called _CONF_*,
5634 or "the configuration storage API"...
5636 The new configuration file reading functions are:
5638 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5639 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5641 NCONF_default, NCONF_WIN32
5643 NCONF_dump_fp, NCONF_dump_bio
5645 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5646 NCONF_new creates a new CONF object. This works in the same way
5647 as other interfaces in OpenSSL, like the BIO interface.
5648 NCONF_dump_* dump the internal storage of the configuration file,
5649 which is useful for debugging. All other functions take the same
5650 arguments as the old CONF_* functions wth the exception of the
5651 first that must be a `CONF *' instead of a `LHASH *'.
5653 To make it easer to use the new classes with the old CONF_* functions,
5654 the function CONF_set_default_method is provided.
5657 *) Add '-tls1' option to 'openssl ciphers', which was already
5658 mentioned in the documentation but had not been implemented.
5659 (This option is not yet really useful because even the additional
5660 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5663 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5664 OpenSSL-based applications) load shared libraries and bind to
5665 them in a portable way.
5666 [Geoff Thorpe, with contributions from Richard Levitte]
5668 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5670 *) Make sure _lrotl and _lrotr are only used with MSVC.
5672 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5673 (the default implementation of RAND_status).
5675 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5676 to '-clrext' (= clear extensions), as intended and documented.
5677 [Bodo Moeller; inconsistency pointed out by Michael Attili
5680 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5681 was larger than the MD block size.
5682 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5684 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5685 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5686 using the passed key: if the passed key was a private key the result
5687 of X509_print(), for example, would be to print out all the private key
5691 *) des_quad_cksum() byte order bug fix.
5692 [Ulf Möller, using the problem description in krb4-0.9.7, where
5693 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5695 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5697 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5699 *) For easily testing in shell scripts whether some command
5700 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5701 returns with exit code 0 iff no command of the given name is available.
5702 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5703 the output goes to stdout and nothing is printed to stderr.
5704 Additional arguments are always ignored.
5706 Since for each cipher there is a command of the same name,
5707 the 'no-cipher' compilation switches can be tested this way.
5709 ('openssl no-XXX' is not able to detect pseudo-commands such
5710 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5713 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5716 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5717 is set; it will be thrown away anyway because each handshake creates
5719 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5720 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5721 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5722 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5725 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5726 'Q' and 'R' lose their special meanings (quit/renegotiate).
5727 This is part of what -quiet does; unlike -quiet, -ign_eof
5728 does not suppress any output.
5731 *) Add compatibility options to the purpose and trust code. The
5732 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5733 accepts a certificate or CA, this was the previous behaviour,
5734 with all the associated security issues.
5736 X509_TRUST_COMPAT is the old trust behaviour: only and
5737 automatically trust self signed roots in certificate store. A
5738 new trust setting X509_TRUST_DEFAULT is used to specify that
5739 a purpose has no associated trust setting and it should instead
5740 use the value in the default purpose.
5743 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5744 and fix a memory leak.
5747 *) In util/mkerr.pl (which implements 'make errors'), preserve
5748 reason strings from the previous version of the .c file, as
5749 the default to have only downcase letters (and digits) in
5750 automatically generated reasons codes is not always appropriate.
5753 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5754 using strerror. Previously, ERR_reason_error_string() returned
5755 library names as reason strings for SYSerr; but SYSerr is a special
5756 case where small numbers are errno values, not library numbers.
5759 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5760 converts DSA parameters into DH parameters. (When creating parameters,
5761 DSA_generate_parameters is used.)
5764 *) Include 'length' (recommended exponent length) in C code generated
5765 by 'openssl dhparam -C'.
5768 *) The second argument to set_label in perlasm was already being used
5769 so couldn't be used as a "file scope" flag. Moved to third argument
5773 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5774 instead of RAND_bytes for encryption IVs and salts.
5777 *) Include RAND_status() into RAND_METHOD instead of implementing
5778 it only for md_rand.c Otherwise replacing the PRNG by calling
5779 RAND_set_rand_method would be impossible.
5782 *) Don't let DSA_generate_key() enter an infinite loop if the random
5783 number generation fails.
5786 *) New 'rand' application for creating pseudo-random output.
5789 *) Added configuration support for Linux/IA64
5790 [Rolf Haberrecker <rolf@suse.de>]
5792 *) Assembler module support for Mingw32.
5795 *) Shared library support for HPUX (in shlib/).
5796 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5798 *) Shared library support for Solaris gcc.
5799 [Lutz Behnke <behnke@trustcenter.de>]
5801 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5803 *) PKCS7_encrypt() was adding text MIME headers twice because they
5804 were added manually and by SMIME_crlf_copy().
5807 *) In bntest.c don't call BN_rand with zero bits argument.
5808 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5810 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5811 case was implemented. This caused BN_div_recp() to fail occasionally.
5814 *) Add an optional second argument to the set_label() in the perl
5815 assembly language builder. If this argument exists and is set
5816 to 1 it signals that the assembler should use a symbol whose
5817 scope is the entire file, not just the current function. This
5818 is needed with MASM which uses the format label:: for this scope.
5819 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5821 *) Change the ASN1 types so they are typedefs by default. Before
5822 almost all types were #define'd to ASN1_STRING which was causing
5823 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5827 *) Change names of new functions to the new get1/get0 naming
5828 convention: After 'get1', the caller owns a reference count
5829 and has to call ..._free; 'get0' returns a pointer to some
5830 data structure without incrementing reference counters.
5831 (Some of the existing 'get' functions increment a reference
5832 counter, some don't.)
5833 Similarly, 'set1' and 'add1' functions increase reference
5834 counters or duplicate objects.
5837 *) Allow for the possibility of temp RSA key generation failure:
5838 the code used to assume it always worked and crashed on failure.
5841 *) Fix potential buffer overrun problem in BIO_printf().
5842 [Ulf Möller, using public domain code by Patrick Powell; problem
5843 pointed out by David Sacerdote <das33@cornell.edu>]
5845 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5846 RAND_egd() and RAND_status(). In the command line application,
5847 the EGD socket can be specified like a seed file using RANDFILE
5851 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5852 Some CAs (e.g. Verisign) distribute certificates in this form.
5855 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5856 list to exclude them. This means that no special compilation option
5857 is needed to use anonymous DH: it just needs to be included in the
5861 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5862 EVP_MD_type. The old functionality is available in a new macro called
5863 EVP_MD_md(). Change code that uses it and update docs.
5866 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5867 where the 'void *' argument is replaced by a function pointer argument.
5868 Previously 'void *' was abused to point to functions, which works on
5869 many platforms, but is not correct. As these functions are usually
5870 called by macros defined in OpenSSL header files, most source code
5871 should work without changes.
5874 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5875 sections with information on -D... compiler switches used for
5876 compiling the library so that applications can see them. To enable
5877 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5878 must be defined. E.g.,
5879 #define OPENSSL_ALGORITHM_DEFINES
5880 #include <openssl/opensslconf.h>
5881 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5882 [Richard Levitte, Ulf and Bodo Möller]
5884 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5888 *) Change the 'other' type in certificate aux info to a STACK_OF
5889 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5890 the required ASN1 format: arbitrary types determined by an OID.
5893 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5894 argument to 'req'. This is not because the function is newer or
5895 better than others it just uses the work 'NEW' in the certificate
5896 request header lines. Some software needs this.
5899 *) Reorganise password command line arguments: now passwords can be
5900 obtained from various sources. Delete the PEM_cb function and make
5901 it the default behaviour: i.e. if the callback is NULL and the
5902 usrdata argument is not NULL interpret it as a null terminated pass
5903 phrase. If usrdata and the callback are NULL then the pass phrase
5904 is prompted for as usual.
5907 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5908 the support is automatically enabled. The resulting binaries will
5909 autodetect the card and use it if present.
5910 [Ben Laurie and Compaq Inc.]
5912 *) Work around for Netscape hang bug. This sends certificate request
5913 and server done in one record. Since this is perfectly legal in the
5914 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5915 the bugs/SSLv3 entry for more info.
5918 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5921 *) Add -rand argument to smime and pkcs12 applications and read/write
5925 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5928 *) Add command line password options to the remaining applications.
5931 *) Bug fix for BN_div_recp() for numerators with an even number of
5935 *) More tests in bntest.c, and changed test_bn output.
5938 *) ./config recognizes MacOS X now.
5941 *) Bug fix for BN_div() when the first words of num and divsor are
5942 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5945 *) Add support for various broken PKCS#8 formats, and command line
5946 options to produce them.
5949 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5950 get temporary BIGNUMs from a BN_CTX.
5953 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5957 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5958 include a #define from the old name to the new. The original intent
5959 was that statically linked binaries could for example just call
5960 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5961 link with digests. This never worked becayse SSLeay_add_all_digests()
5962 and SSLeay_add_all_ciphers() were in the same source file so calling
5963 one would link with the other. They are now in separate source files.
5966 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5969 *) Use a less unusual form of the Miller-Rabin primality test (it used
5970 a binary algorithm for exponentiation integrated into the Miller-Rabin
5971 loop, our standard modexp algorithms are faster).
5974 *) Support for the EBCDIC character set completed.
5975 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5977 *) Source code cleanups: use const where appropriate, eliminate casts,
5978 use void * instead of char * in lhash.
5981 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5982 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5983 this the server could overwrite ephemeral keys that the client
5987 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5988 using 50 iterations of the Rabin-Miller test.
5990 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5991 iterations of the Rabin-Miller test as required by the appendix
5992 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5993 As BN_is_prime_fasttest includes trial division, DSA parameter
5994 generation becomes much faster.
5996 This implies a change for the callback functions in DSA_is_prime
5997 and DSA_generate_parameters: The callback function is called once
5998 for each positive witness in the Rabin-Miller test, not just
5999 occasionally in the inner loop; and the parameters to the
6000 callback function now provide an iteration count for the outer
6001 loop rather than for the current invocation of the inner loop.
6002 DSA_generate_parameters additionally can call the callback
6003 function with an 'iteration count' of -1, meaning that a
6004 candidate has passed the trial division test (when q is generated
6005 from an application-provided seed, trial division is skipped).
6008 *) New function BN_is_prime_fasttest that optionally does trial
6009 division before starting the Rabin-Miller test and has
6010 an additional BN_CTX * argument (whereas BN_is_prime always
6011 has to allocate at least one BN_CTX).
6012 'callback(1, -1, cb_arg)' is called when a number has passed the
6013 trial division stage.
6016 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6020 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6023 *) New function BN_pseudo_rand().
6026 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6027 bignum version of BN_from_montgomery() with the working code from
6028 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6032 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6033 made it impossible to use the same SSL_SESSION data structure in
6034 SSL2 clients in multiple threads.
6037 *) The return value of RAND_load_file() no longer counts bytes obtained
6038 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6039 to seed the PRNG (previously an explicit byte count was required).
6040 [Ulf Möller, Bodo Möller]
6042 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6043 used (char *) instead of (void *) and had casts all over the place.
6046 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6049 *) Retain source code compatibility for BN_prime_checks macro:
6050 BN_is_prime(..., BN_prime_checks, ...) now uses
6051 BN_prime_checks_for_size to determine the appropriate number of
6052 Rabin-Miller iterations.
6055 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6056 DH_CHECK_P_NOT_SAFE_PRIME.
6057 (Check if this is true? OpenPGP calls them "strong".)
6060 *) Merge the functionality of "dh" and "gendh" programs into a new program
6061 "dhparam". The old programs are retained for now but will handle DH keys
6062 (instead of parameters) in future.
6065 *) Make the ciphers, s_server and s_client programs check the return values
6066 when a new cipher list is set.
6069 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6070 ciphers. Before when the 56bit ciphers were enabled the sorting was
6073 The syntax for the cipher sorting has been extended to support sorting by
6074 cipher-strength (using the strength_bits hard coded in the tables).
6075 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6077 Fix a bug in the cipher-command parser: when supplying a cipher command
6078 string with an "undefined" symbol (neither command nor alphanumeric
6079 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6080 an error is flagged.
6082 Due to the strength-sorting extension, the code of the
6083 ssl_create_cipher_list() function was completely rearranged. I hope that
6084 the readability was also increased :-)
6085 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6087 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6088 for the first serial number and places 2 in the serial number file. This
6089 avoids problems when the root CA is created with serial number zero and
6090 the first user certificate has the same issuer name and serial number
6094 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6095 the new code. Add documentation for this stuff.
6098 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6099 X509_*() to X509at_*() on the grounds that they don't handle X509
6100 structures and behave in an analagous way to the X509v3 functions:
6101 they shouldn't be called directly but wrapper functions should be used
6104 So we also now have some wrapper functions that call the X509at functions
6105 when passed certificate requests. (TO DO: similar things can be done with
6106 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6107 things. Some of these need some d2i or i2d and print functionality
6108 because they handle more complex structures.)
6111 *) Add missing #ifndefs that caused missing symbols when building libssl
6112 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6113 NO_RSA in ssl/s2*.c.
6114 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6116 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6117 has a return value which indicates the quality of the random data
6118 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6119 error queue. New function RAND_pseudo_bytes() generates output that is
6120 guaranteed to be unique but not unpredictable. RAND_add is like
6121 RAND_seed, but takes an extra argument for an entropy estimate
6122 (RAND_seed always assumes full entropy).
6125 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6126 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6127 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6128 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6129 false-positive rate of at most 2^-80 for random input.
6132 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6135 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6136 in the 0.9.5 release), this returns the chain
6137 from an X509_CTX structure with a dup of the stack and all
6138 the X509 reference counts upped: so the stack will exist
6139 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6142 Also make SSL_SESSION_print() print out the verify return
6146 *) Add manpage for the pkcs12 command. Also change the default
6147 behaviour so MAC iteration counts are used unless the new
6148 -nomaciter option is used. This improves file security and
6149 only older versions of MSIE (4.0 for example) need it.
6152 *) Honor the no-xxx Configure options when creating .DEF files.
6155 *) Add PKCS#10 attributes to field table: challengePassword,
6156 unstructuredName and unstructuredAddress. These are taken from
6157 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6158 international characters are used.
6160 More changes to X509_ATTRIBUTE code: allow the setting of types
6161 based on strings. Remove the 'loc' parameter when adding
6162 attributes because these will be a SET OF encoding which is sorted
6166 *) Initial changes to the 'req' utility to allow request generation
6167 automation. This will allow an application to just generate a template
6168 file containing all the field values and have req construct the
6171 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6172 used all over the place including certificate requests and PKCS#7
6173 structures. They are currently handled manually where necessary with
6174 some primitive wrappers for PKCS#7. The new functions behave in a
6175 manner analogous to the X509 extension functions: they allow
6176 attributes to be looked up by NID and added.
6178 Later something similar to the X509V3 code would be desirable to
6179 automatically handle the encoding, decoding and printing of the
6180 more complex types. The string types like challengePassword can
6181 be handled by the string table functions.
6183 Also modified the multi byte string table handling. Now there is
6184 a 'global mask' which masks out certain types. The table itself
6185 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6186 is useful when for example there is only one permissible type
6187 (as in countryName) and using the mask might result in no valid
6191 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6192 SSL_get_peer_finished to allow applications to obtain the latest
6193 Finished messages sent to the peer or expected from the peer,
6194 respectively. (SSL_get_peer_finished is usually the Finished message
6195 actually received from the peer, otherwise the protocol will be aborted.)
6197 As the Finished message are message digests of the complete handshake
6198 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6199 be used for external authentication procedures when the authentication
6200 provided by SSL/TLS is not desired or is not enough.
6203 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6204 the host supports BWX extension and if Compaq C is present on the
6205 $PATH. Just exploiting of the BWX extension results in 20-30%
6206 performance kick for some algorithms, e.g. DES and RC4 to mention
6207 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6211 *) Add support for MS "fast SGC". This is arguably a violation of the
6212 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6213 weak crypto and after checking the certificate is SGC a second one
6214 with strong crypto. MS SGC stops the first handshake after receiving
6215 the server certificate message and sends a second client hello. Since
6216 a server will typically do all the time consuming operations before
6217 expecting any further messages from the client (server key exchange
6218 is the most expensive) there is little difference between the two.
6220 To get OpenSSL to support MS SGC we have to permit a second client
6221 hello message after we have sent server done. In addition we have to
6222 reset the MAC if we do get this second client hello.
6225 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6226 if a DER encoded private key is RSA or DSA traditional format. Changed
6227 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6228 format DER encoded private key. Newer code should use PKCS#8 format which
6229 has the key type encoded in the ASN1 structure. Added DER private key
6230 support to pkcs8 application.
6233 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6234 ciphersuites has been selected (as required by the SSL 3/TLS 1
6235 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6236 is set, we interpret this as a request to violate the specification
6237 (the worst that can happen is a handshake failure, and 'correct'
6238 behaviour would result in a handshake failure anyway).
6241 *) In SSL_CTX_add_session, take into account that there might be multiple
6242 SSL_SESSION structures with the same session ID (e.g. when two threads
6243 concurrently obtain them from an external cache).
6244 The internal cache can handle only one SSL_SESSION with a given ID,
6245 so if there's a conflict, we now throw out the old one to achieve
6249 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6250 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6251 some routines that use cipher OIDs: some ciphers do not have OIDs
6252 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6256 *) Simplify the trust setting structure and code. Now we just have
6257 two sequences of OIDs for trusted and rejected settings. These will
6258 typically have values the same as the extended key usage extension
6259 and any application specific purposes.
6261 The trust checking code now has a default behaviour: it will just
6262 check for an object with the same NID as the passed id. Functions can
6263 be provided to override either the default behaviour or the behaviour
6264 for a given id. SSL client, server and email already have functions
6265 in place for compatibility: they check the NID and also return "trusted"
6266 if the certificate is self signed.
6269 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6270 traditional format into an EVP_PKEY structure.
6273 *) Add a password callback function PEM_cb() which either prompts for
6274 a password if usr_data is NULL or otherwise assumes it is a null
6275 terminated password. Allow passwords to be passed on command line
6276 environment or config files in a few more utilities.
6279 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6280 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6281 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6282 Update documentation.
6285 *) Support for ASN1 "NULL" type. This could be handled before by using
6286 ASN1_TYPE but there wasn't any function that would try to read a NULL
6287 and produce an error if it couldn't. For compatibility we also have
6288 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6289 don't allocate anything because they don't need to.
6292 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6294 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6296 *) Rebuild of the memory allocation routines used by OpenSSL code and
6297 possibly others as well. The purpose is to make an interface that
6298 provide hooks so anyone can build a separate set of allocation and
6299 deallocation routines to be used by OpenSSL, for example memory
6300 pool implementations, or something else, which was previously hard
6301 since Malloc(), Realloc() and Free() were defined as macros having
6302 the values malloc, realloc and free, respectively (except for Win32
6303 compilations). The same is provided for memory debugging code.
6304 OpenSSL already comes with functionality to find memory leaks, but
6305 this gives people a chance to debug other memory problems.
6307 With these changes, a new set of functions and macros have appeared:
6309 CRYPTO_set_mem_debug_functions() [F]
6310 CRYPTO_get_mem_debug_functions() [F]
6311 CRYPTO_dbg_set_options() [F]
6312 CRYPTO_dbg_get_options() [F]
6313 CRYPTO_malloc_debug_init() [M]
6315 The memory debug functions are NULL by default, unless the library
6316 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6317 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6318 gives the standard debugging functions that come with OpenSSL) or
6319 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6320 provided by the library user) must be used. When the standard
6321 debugging functions are used, CRYPTO_dbg_set_options can be used to
6322 request additional information:
6323 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6324 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6326 Also, things like CRYPTO_set_mem_functions will always give the
6327 expected result (the new set of functions is used for allocation
6328 and deallocation) at all times, regardless of platform and compiler
6331 To finish it up, some functions that were never use in any other
6332 way than through macros have a new API and new semantic:
6335 CRYPTO_dbg_realloc()
6338 All macros of value have retained their old syntax.
6339 [Richard Levitte and Bodo Moeller]
6341 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6342 ordering of SMIMECapabilities wasn't in "strength order" and there
6343 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6347 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6348 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6349 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6351 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6352 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6353 functionality to handle multipart/signed properly) and a utility
6354 called 'smime' to call all this stuff. This is based on code I
6355 originally wrote for Celo who have kindly allowed it to be
6356 included in OpenSSL.
6359 *) Add variants des_set_key_checked and des_set_key_unchecked of
6360 des_set_key (aka des_key_sched). Global variable des_check_key
6361 decides which of these is called by des_set_key; this way
6362 des_check_key behaves as it always did, but applications and
6363 the library itself, which was buggy for des_check_key == 1,
6364 have a cleaner way to pick the version they need.
6367 *) New function PKCS12_newpass() which changes the password of a
6371 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6372 dynamic mix. In both cases the ids can be used as an index into the
6373 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6374 functions so they accept a list of the field values and the
6375 application doesn't need to directly manipulate the X509_TRUST
6379 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6383 *) Modify the way the V3 extension code looks up extensions. This now
6384 works in a similar way to the object code: we have some "standard"
6385 extensions in a static table which is searched with OBJ_bsearch()
6386 and the application can add dynamic ones if needed. The file
6387 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6388 updated whenever a new extension is added to the core code and kept
6389 in ext_nid order. There is a simple program 'tabtest.c' which checks
6390 this. New extensions are not added too often so this file can readily
6391 be maintained manually.
6393 There are two big advantages in doing things this way. The extensions
6394 can be looked up immediately and no longer need to be "added" using
6395 X509V3_add_standard_extensions(): this function now does nothing.
6396 [Side note: I get *lots* of email saying the extension code doesn't
6397 work because people forget to call this function]
6398 Also no dynamic allocation is done unless new extensions are added:
6399 so if we don't add custom extensions there is no need to call
6400 X509V3_EXT_cleanup().
6403 *) Modify enc utility's salting as follows: make salting the default. Add a
6404 magic header, so unsalted files fail gracefully instead of just decrypting
6405 to garbage. This is because not salting is a big security hole, so people
6406 should be discouraged from doing it.
6409 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6410 digest to be passed on the command line but it only used this
6411 parameter when signing a certificate. Modified so all relevant
6412 operations are affected by the digest parameter including the
6413 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6414 DSA key was used because it didn't fix the digest.
6417 *) Initial certificate chain verify code. Currently tests the untrusted
6418 certificates for consistency with the verify purpose (which is set
6419 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6421 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6422 this is because it will reject chains with invalid extensions whereas
6423 every previous version of OpenSSL and SSLeay made no checks at all.
6425 Trust code: checks the root CA for the relevant trust settings. Trust
6426 settings have an initial value consistent with the verify purpose: e.g.
6427 if the verify purpose is for SSL client use it expects the CA to be
6428 trusted for SSL client use. However the default value can be changed to
6429 permit custom trust settings: one example of this would be to only trust
6430 certificates from a specific "secure" set of CAs.
6432 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6433 which should be used for version portability: especially since the
6434 verify structure is likely to change more often now.
6436 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6437 to set them. If not set then assume SSL clients will verify SSL servers
6440 Two new options to the verify program: -untrusted allows a set of
6441 untrusted certificates to be passed in and -purpose which sets the
6442 intended purpose of the certificate. If a purpose is set then the
6443 new chain verify code is used to check extension consistency.
6446 *) Support for the authority information access extension.
6449 *) Modify RSA and DSA PEM read routines to transparently handle
6450 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6451 public keys in a format compatible with certificate
6452 SubjectPublicKeyInfo structures. Unfortunately there were already
6453 functions called *_PublicKey_* which used various odd formats so
6454 these are retained for compatibility: however the DSA variants were
6455 never in a public release so they have been deleted. Changed dsa/rsa
6456 utilities to handle the new format: note no releases ever handled public
6457 keys so we should be OK.
6459 The primary motivation for this change is to avoid the same fiasco
6460 that dogs private keys: there are several incompatible private key
6461 formats some of which are standard and some OpenSSL specific and
6462 require various evil hacks to allow partial transparent handling and
6463 even then it doesn't work with DER formats. Given the option anything
6464 other than PKCS#8 should be dumped: but the other formats have to
6465 stay in the name of compatibility.
6467 With public keys and the benefit of hindsight one standard format
6468 is used which works with EVP_PKEY, RSA or DSA structures: though
6469 it clearly returns an error if you try to read the wrong kind of key.
6471 Added a -pubkey option to the 'x509' utility to output the public key.
6472 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6473 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6474 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6475 that do the same as the EVP_PKEY_assign_*() except they up the
6476 reference count of the added key (they don't "swallow" the
6480 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6481 CRLs would fail if the file contained no certificates or no CRLs:
6482 added a new function to read in both types and return the number
6483 read: this means that if none are read it will be an error. The
6484 DER versions of the certificate and CRL reader would always fail
6485 because it isn't possible to mix certificates and CRLs in DER format
6486 without choking one or the other routine. Changed this to just read
6487 a certificate: this is the best we can do. Also modified the code
6488 in apps/verify.c to take notice of return codes: it was previously
6489 attempting to read in certificates from NULL pointers and ignoring
6490 any errors: this is one reason why the cert and CRL reader seemed
6491 to work. It doesn't check return codes from the default certificate
6492 routines: these may well fail if the certificates aren't installed.
6495 *) Code to support otherName option in GeneralName.
6498 *) First update to verify code. Change the verify utility
6499 so it warns if it is passed a self signed certificate:
6500 for consistency with the normal behaviour. X509_verify
6501 has been modified to it will now verify a self signed
6502 certificate if *exactly* the same certificate appears
6503 in the store: it was previously impossible to trust a
6504 single self signed certificate. This means that:
6505 openssl verify ss.pem
6506 now gives a warning about a self signed certificate but
6507 openssl verify -CAfile ss.pem ss.pem
6511 *) For servers, store verify_result in SSL_SESSION data structure
6512 (and add it to external session representation).
6513 This is needed when client certificate verifications fails,
6514 but an application-provided verification callback (set by
6515 SSL_CTX_set_cert_verify_callback) allows accepting the session
6516 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6517 but returns 1): When the session is reused, we have to set
6518 ssl->verify_result to the appropriate error code to avoid
6520 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6522 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6523 case in PKCS7_dataInit() where the signed PKCS7 structure
6524 didn't contain any existing data because it was being created.
6525 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6527 *) Add a salt to the key derivation routines in enc.c. This
6528 forms the first 8 bytes of the encrypted file. Also add a
6529 -S option to allow a salt to be input on the command line.
6532 *) New function X509_cmp(). Oddly enough there wasn't a function
6533 to compare two certificates. We do this by working out the SHA1
6534 hash and comparing that. X509_cmp() will be needed by the trust
6538 *) SSL_get1_session() is like SSL_get_session(), but increments
6539 the reference count in the SSL_SESSION returned.
6540 [Geoff Thorpe <geoff@eu.c2.net>]
6542 *) Fix for 'req': it was adding a null to request attributes.
6543 Also change the X509_LOOKUP and X509_INFO code to handle
6544 certificate auxiliary information.
6547 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6551 *) Add the possibility to add extra information to the memory leak
6552 detecting output, to form tracebacks, showing from where each
6553 allocation was originated: CRYPTO_push_info("constant string") adds
6554 the string plus current file name and line number to a per-thread
6555 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6556 is like calling CYRPTO_pop_info() until the stack is empty.
6557 Also updated memory leak detection code to be multi-thread-safe.
6560 *) Add options -text and -noout to pkcs7 utility and delete the
6561 encryption options which never did anything. Update docs.
6564 *) Add options to some of the utilities to allow the pass phrase
6565 to be included on either the command line (not recommended on
6566 OSes like Unix) or read from the environment. Update the
6567 manpages and fix a few bugs.
6570 *) Add a few manpages for some of the openssl commands.
6573 *) Fix the -revoke option in ca. It was freeing up memory twice,
6574 leaking and not finding already revoked certificates.
6577 *) Extensive changes to support certificate auxiliary information.
6578 This involves the use of X509_CERT_AUX structure and X509_AUX
6579 functions. An X509_AUX function such as PEM_read_X509_AUX()
6580 can still read in a certificate file in the usual way but it
6581 will also read in any additional "auxiliary information". By
6582 doing things this way a fair degree of compatibility can be
6583 retained: existing certificates can have this information added
6584 using the new 'x509' options.
6586 Current auxiliary information includes an "alias" and some trust
6587 settings. The trust settings will ultimately be used in enhanced
6588 certificate chain verification routines: currently a certificate
6589 can only be trusted if it is self signed and then it is trusted
6593 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6594 The problem was that one of the replacement routines had not been working
6595 since SSLeay releases. For now the offending routine has been replaced
6596 with non-optimised assembler. Even so, this now gives around 95%
6597 performance improvement for 1024 bit RSA signs.
6600 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6601 handling. Most clients have the effective key size in bits equal to
6602 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6603 A few however don't do this and instead use the size of the decrypted key
6604 to determine the RC2 key length and the AlgorithmIdentifier to determine
6605 the effective key length. In this case the effective key length can still
6606 be 40 bits but the key length can be 168 bits for example. This is fixed
6607 by manually forcing an RC2 key into the EVP_PKEY structure because the
6608 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6609 the key length and effective key length are equal.
6612 *) Add a bunch of functions that should simplify the creation of
6613 X509_NAME structures. Now you should be able to do:
6614 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6615 and have it automatically work out the correct field type and fill in
6616 the structures. The more adventurous can try:
6617 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6618 and it will (hopefully) work out the correct multibyte encoding.
6621 *) Change the 'req' utility to use the new field handling and multibyte
6622 copy routines. Before the DN field creation was handled in an ad hoc
6623 way in req, ca, and x509 which was rather broken and didn't support
6624 BMPStrings or UTF8Strings. Since some software doesn't implement
6625 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6626 using the dirstring_type option. See the new comment in the default
6627 openssl.cnf for more info.
6630 *) Make crypto/rand/md_rand.c more robust:
6631 - Assure unique random numbers after fork().
6632 - Make sure that concurrent threads access the global counter and
6633 md serializably so that we never lose entropy in them
6634 or use exactly the same state in multiple threads.
6635 Access to the large state is not always serializable because
6636 the additional locking could be a performance killer, and
6637 md should be large enough anyway.
6640 *) New file apps/app_rand.c with commonly needed functionality
6641 for handling the random seed file.
6643 Use the random seed file in some applications that previously did not:
6645 dsaparam -genkey (which also ignored its '-rand' option),
6648 x509 (when signing).
6649 Except on systems with /dev/urandom, it is crucial to have a random
6650 seed file at least for key creation, DSA signing, and for DH exchanges;
6651 for RSA signatures we could do without one.
6653 gendh and gendsa (unlike genrsa) used to read only the first byte
6654 of each file listed in the '-rand' option. The function as previously
6655 found in genrsa is now in app_rand.c and is used by all programs
6656 that support '-rand'.
6659 *) In RAND_write_file, use mode 0600 for creating files;
6660 don't just chmod when it may be too late.
6663 *) Report an error from X509_STORE_load_locations
6664 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6667 *) New function ASN1_mbstring_copy() this copies a string in either
6668 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6669 into an ASN1_STRING type. A mask of permissible types is passed
6670 and it chooses the "minimal" type to use or an error if not type
6674 *) Add function equivalents to the various macros in asn1.h. The old
6675 macros are retained with an M_ prefix. Code inside the library can
6676 use the M_ macros. External code (including the openssl utility)
6677 should *NOT* in order to be "shared library friendly".
6680 *) Add various functions that can check a certificate's extensions
6681 to see if it usable for various purposes such as SSL client,
6682 server or S/MIME and CAs of these types. This is currently
6683 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6684 verification. Also added a -purpose flag to x509 utility to
6685 print out all the purposes.
6688 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6692 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6693 for, obtain and decode and extension and obtain its critical flag.
6694 This allows all the necessary extension code to be handled in a
6695 single function call.
6698 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6699 platforms. See crypto/rc4/rc4_enc.c for further details.
6702 *) New -noout option to asn1parse. This causes no output to be produced
6703 its main use is when combined with -strparse and -out to extract data
6704 from a file (which may not be in ASN.1 format).
6707 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6708 when producing the local key id.
6709 [Richard Levitte <levitte@stacken.kth.se>]
6711 *) New option -dhparam in s_server. This allows a DH parameter file to be
6712 stated explicitly. If it is not stated then it tries the first server
6713 certificate file. The previous behaviour hard coded the filename
6717 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6718 a public key to be input or output. For example:
6719 openssl rsa -in key.pem -pubout -out pubkey.pem
6720 Also added necessary DSA public key functions to handle this.
6723 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6724 in the message. This was handled by allowing
6725 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6726 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6728 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6729 to the end of the strings whereas this didn't. This would cause problems
6730 if strings read with d2i_ASN1_bytes() were later modified.
6731 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6733 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6734 data and it contains EOF it will end up returning an error. This is
6735 caused by input 46 bytes long. The cause is due to the way base64
6736 BIOs find the start of base64 encoded data. They do this by trying a
6737 trial decode on each line until they find one that works. When they
6738 do a flag is set and it starts again knowing it can pass all the
6739 data directly through the decoder. Unfortunately it doesn't reset
6740 the context it uses. This means that if EOF is reached an attempt
6741 is made to pass two EOFs through the context and this causes the
6742 resulting error. This can also cause other problems as well. As is
6743 usual with these problems it takes *ages* to find and the fix is
6744 trivial: move one line.
6745 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6747 *) Ugly workaround to get s_client and s_server working under Windows. The
6748 old code wouldn't work because it needed to select() on sockets and the
6749 tty (for keypresses and to see if data could be written). Win32 only
6750 supports select() on sockets so we select() with a 1s timeout on the
6751 sockets and then see if any characters are waiting to be read, if none
6752 are present then we retry, we also assume we can always write data to
6753 the tty. This isn't nice because the code then blocks until we've
6754 received a complete line of data and it is effectively polling the
6755 keyboard at 1s intervals: however it's quite a bit better than not
6756 working at all :-) A dedicated Windows application might handle this
6757 with an event loop for example.
6760 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6761 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6762 will be called when RSA_sign() and RSA_verify() are used. This is useful
6763 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6764 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6765 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6766 This necessitated the support of an extra signature type NID_md5_sha1
6767 for SSL signatures and modifications to the SSL library to use it instead
6768 of calling RSA_public_decrypt() and RSA_private_encrypt().
6771 *) Add new -verify -CAfile and -CApath options to the crl program, these
6772 will lookup a CRL issuers certificate and verify the signature in a
6773 similar way to the verify program. Tidy up the crl program so it
6774 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6775 less strict. It will now permit CRL extensions even if it is not
6776 a V2 CRL: this will allow it to tolerate some broken CRLs.
6779 *) Initialize all non-automatic variables each time one of the openssl
6780 sub-programs is started (this is necessary as they may be started
6781 multiple times from the "OpenSSL>" prompt).
6782 [Lennart Bang, Bodo Moeller]
6784 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6785 removing all other RSA functionality (this is what NO_RSA does). This
6786 is so (for example) those in the US can disable those operations covered
6787 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6791 *) Non-copying interface to BIO pairs.
6792 (still largely untested)
6795 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6796 ASCII string. This was handled independently in various places before.
6799 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6800 UTF8 strings a character at a time.
6803 *) Use client_version from client hello to select the protocol
6804 (s23_srvr.c) and for RSA client key exchange verification
6805 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6808 *) Add various utility functions to handle SPKACs, these were previously
6809 handled by poking round in the structure internals. Added new function
6810 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6811 print, verify and generate SPKACs. Based on an original idea from
6812 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6815 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6818 *) Allow the config file extension section to be overwritten on the
6819 command line. Based on an original idea from Massimiliano Pala
6820 <madwolf@comune.modena.it>. The new option is called -extensions
6821 and can be applied to ca, req and x509. Also -reqexts to override
6822 the request extensions in req and -crlexts to override the crl extensions
6826 *) Add new feature to the SPKAC handling in ca. Now you can include
6827 the same field multiple times by preceding it by "XXXX." for example:
6830 this is the same syntax as used in the req config file.
6833 *) Allow certificate extensions to be added to certificate requests. These
6834 are specified in a 'req_extensions' option of the req section of the
6835 config file. They can be printed out with the -text option to req but
6836 are otherwise ignored at present.
6839 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6840 data read consists of only the final block it would not decrypted because
6841 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6842 A misplaced 'break' also meant the decrypted final block might not be
6843 copied until the next read.
6846 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6847 a few extra parameters to the DH structure: these will be useful if
6848 for example we want the value of 'q' or implement X9.42 DH.
6851 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6852 provides hooks that allow the default DSA functions or functions on a
6853 "per key" basis to be replaced. This allows hardware acceleration and
6854 hardware key storage to be handled without major modification to the
6855 library. Also added low level modexp hooks and CRYPTO_EX structure and
6856 associated functions.
6859 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6860 as "read only": it can't be written to and the buffer it points to will
6861 not be freed. Reading from a read only BIO is much more efficient than
6862 a normal memory BIO. This was added because there are several times when
6863 an area of memory needs to be read from a BIO. The previous method was
6864 to create a memory BIO and write the data to it, this results in two
6865 copies of the data and an O(n^2) reading algorithm. There is a new
6866 function BIO_new_mem_buf() which creates a read only memory BIO from
6867 an area of memory. Also modified the PKCS#7 routines to use read only
6871 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6872 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6873 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6874 but a retry condition occured while trying to read the rest.
6877 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6878 NID_pkcs7_encrypted by default: this was wrong since this should almost
6879 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6880 the encrypted data type: this is a more sensible place to put it and it
6881 allows the PKCS#12 code to be tidied up that duplicated this
6885 *) Changed obj_dat.pl script so it takes its input and output files on
6886 the command line. This should avoid shell escape redirection problems
6890 *) Initial support for certificate extension requests, these are included
6891 in things like Xenroll certificate requests. Included functions to allow
6892 extensions to be obtained and added.
6895 *) -crlf option to s_client and s_server for sending newlines as
6896 CRLF (as required by many protocols).
6899 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6901 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6902 [Ralf S. Engelschall]
6904 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6905 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6907 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6911 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6912 DH parameters/keys (q is lost during that conversion, but the resulting
6913 DH parameters contain its length).
6915 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6916 much faster than DH_generate_parameters (which creates parameters
6917 where p = 2*q + 1), and also the smaller q makes DH computations
6918 much more efficient (160-bit exponentiation instead of 1024-bit
6919 exponentiation); so this provides a convenient way to support DHE
6920 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6921 utter importance to use
6922 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6924 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6925 when such DH parameters are used, because otherwise small subgroup
6926 attacks may become possible!
6929 *) Avoid memory leak in i2d_DHparams.
6932 *) Allow the -k option to be used more than once in the enc program:
6933 this allows the same encrypted message to be read by multiple recipients.
6936 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6937 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6938 it will always use the numerical form of the OID, even if it has a short
6942 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6943 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6944 otherwise bn_mod_exp was called. In the case of hardware keys for example
6945 no private key components need be present and it might store extra data
6946 in the RSA structure, which cannot be accessed from bn_mod_exp.
6947 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6948 private key operations.
6951 *) Added support for SPARC Linux.
6954 *) pem_password_cb function type incompatibly changed from
6955 typedef int pem_password_cb(char *buf, int size, int rwflag);
6957 ....(char *buf, int size, int rwflag, void *userdata);
6958 so that applications can pass data to their callbacks:
6959 The PEM[_ASN1]_{read,write}... functions and macros now take an
6960 additional void * argument, which is just handed through whenever
6961 the password callback is called.
6962 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6964 New function SSL_CTX_set_default_passwd_cb_userdata.
6966 Compatibility note: As many C implementations push function arguments
6967 onto the stack in reverse order, the new library version is likely to
6968 interoperate with programs that have been compiled with the old
6969 pem_password_cb definition (PEM_whatever takes some data that
6970 happens to be on the stack as its last argument, and the callback
6971 just ignores this garbage); but there is no guarantee whatsoever that
6974 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6975 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6976 problems not only on Windows, but also on some Unix platforms.
6977 To avoid problematic command lines, these definitions are now in an
6978 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6979 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6982 *) MIPS III/IV assembler module is reimplemented.
6985 *) More DES library cleanups: remove references to srand/rand and
6986 delete an unused file.
6989 *) Add support for the the free Netwide assembler (NASM) under Win32,
6990 since not many people have MASM (ml) and it can be hard to obtain.
6991 This is currently experimental but it seems to work OK and pass all
6992 the tests. Check out INSTALL.W32 for info.
6995 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6996 without temporary keys kept an extra copy of the server key,
6997 and connections with temporary keys did not free everything in case
7001 *) New function RSA_check_key and new openssl rsa option -check
7002 for verifying the consistency of RSA keys.
7003 [Ulf Moeller, Bodo Moeller]
7005 *) Various changes to make Win32 compile work:
7006 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7007 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7008 comparison" warnings.
7009 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7012 *) Add a debugging option to PKCS#5 v2 key generation function: when
7013 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7014 derived keys are printed to stderr.
7017 *) Copy the flags in ASN1_STRING_dup().
7018 [Roman E. Pavlov <pre@mo.msk.ru>]
7020 *) The x509 application mishandled signing requests containing DSA
7021 keys when the signing key was also DSA and the parameters didn't match.
7023 It was supposed to omit the parameters when they matched the signing key:
7024 the verifying software was then supposed to automatically use the CA's
7025 parameters if they were absent from the end user certificate.
7027 Omitting parameters is no longer recommended. The test was also
7028 the wrong way round! This was probably due to unusual behaviour in
7029 EVP_cmp_parameters() which returns 1 if the parameters match.
7030 This meant that parameters were omitted when they *didn't* match and
7031 the certificate was useless. Certificates signed with 'ca' didn't have
7033 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7035 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7036 The interface is as follows:
7037 Applications can use
7038 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7039 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7040 "off" is now the default.
7041 The library internally uses
7042 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7043 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7044 to disable memory-checking temporarily.
7046 Some inconsistent states that previously were possible (and were
7047 even the default) are now avoided.
7049 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7050 with each memory chunk allocated; this is occasionally more helpful
7051 than just having a counter.
7053 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7055 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7059 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7060 which largely parallels "options", but is for changing API behaviour,
7061 whereas "options" are about protocol behaviour.
7062 Initial "mode" flags are:
7064 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7065 a single record has been written.
7066 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7067 retries use the same buffer location.
7068 (But all of the contents must be
7072 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7075 *) Fix problems with no-hmac etc.
7076 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7078 *) New functions RSA_get_default_method(), RSA_set_method() and
7079 RSA_get_method(). These allows replacement of RSA_METHODs without having
7080 to mess around with the internals of an RSA structure.
7083 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7084 Also really enable memory leak checks in openssl.c and in some
7086 [Chad C. Mulligan, Bodo Moeller]
7088 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7089 up the length of negative integers. This has now been simplified to just
7090 store the length when it is first determined and use it later, rather
7091 than trying to keep track of where data is copied and updating it to
7093 [Steve Henson, reported by Brien Wheeler
7094 <bwheeler@authentica-security.com>]
7096 *) Add a new function PKCS7_signatureVerify. This allows the verification
7097 of a PKCS#7 signature but with the signing certificate passed to the
7098 function itself. This contrasts with PKCS7_dataVerify which assumes the
7099 certificate is present in the PKCS#7 structure. This isn't always the
7100 case: certificates can be omitted from a PKCS#7 structure and be
7101 distributed by "out of band" means (such as a certificate database).
7104 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7105 function prototypes in pem.h, also change util/mkdef.pl to add the
7106 necessary function names.
7109 *) mk1mf.pl (used by Windows builds) did not properly read the
7110 options set by Configure in the top level Makefile, and Configure
7111 was not even able to write more than one option correctly.
7112 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7115 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7116 file to be loaded from a BIO or FILE pointer. The BIO version will
7117 for example allow memory BIOs to contain config info.
7120 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7121 Whoever hopes to achieve shared-library compatibility across versions
7122 must use this, not the compile-time macro.
7123 (Exercise 0.9.4: Which is the minimum library version required by
7125 Note: All this applies only to multi-threaded programs, others don't
7129 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7130 through a BIO pair triggered the default case, i.e.
7131 SSLerr(...,SSL_R_UNKNOWN_STATE).
7134 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7135 can use the SSL library even if none of the specific BIOs is
7139 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7140 for the encoded length.
7141 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7143 *) Add initial documentation of the X509V3 functions.
7146 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7147 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7148 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7149 secure PKCS#8 private key format with a high iteration count.
7152 *) Fix determination of Perl interpreter: A perl or perl5
7153 _directory_ in $PATH was also accepted as the interpreter.
7154 [Ralf S. Engelschall]
7156 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7157 wrong with it but it was very old and did things like calling
7158 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7162 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7163 to use the new extension code.
7166 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7167 with macros. This should make it easier to change their form, add extra
7168 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7172 *) Add to configuration table a new entry that can specify an alternative
7173 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7174 according to Mark Crispin <MRC@Panda.COM>.
7178 *) DES CBC did not update the IV. Weird.
7181 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7182 Changing the behaviour of the former might break existing programs --
7183 where IV updating is needed, des_ncbc_encrypt can be used.
7186 *) When bntest is run from "make test" it drives bc to check its
7187 calculations, as well as internally checking them. If an internal check
7188 fails, it needs to cause bc to give a non-zero result or make test carries
7189 on without noticing the failure. Fixed.
7192 *) DES library cleanups.
7195 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7196 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7197 ciphers. NOTE: although the key derivation function has been verified
7198 against some published test vectors it has not been extensively tested
7199 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7203 *) Instead of "mkdir -p", which is not fully portable, use new
7204 Perl script "util/mkdir-p.pl".
7207 *) Rewrite the way password based encryption (PBE) is handled. It used to
7208 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7209 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7210 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7211 the 'parameter' field of the AlgorithmIdentifier is passed to the
7212 underlying key generation function so it must do its own ASN1 parsing.
7213 This has also changed the EVP_PBE_CipherInit() function which now has a
7214 'parameter' argument instead of literal salt and iteration count values
7215 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7218 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7219 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7220 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7221 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7222 value was just used as a "magic string" and not used directly its
7223 value doesn't matter.
7226 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7230 *) "linux-sparc64" configuration (ultrapenguin).
7231 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7232 "linux-sparc" configuration.
7233 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7235 *) config now generates no-xxx options for missing ciphers.
7238 *) Support the EBCDIC character set (work in progress).
7239 File ebcdic.c not yet included because it has a different license.
7240 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7242 *) Support BS2000/OSD-POSIX.
7243 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7245 *) Make callbacks for key generation use void * instead of char *.
7248 *) Make S/MIME samples compile (not yet tested).
7251 *) Additional typesafe stacks.
7254 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7258 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7260 *) New configuration variant "sco5-gcc".
7262 *) Updated some demos.
7263 [Sean O Riordain, Wade Scholine]
7265 *) Add missing BIO_free at exit of pkcs12 application.
7268 *) Fix memory leak in conf.c.
7271 *) Updates for Win32 to assembler version of MD5.
7274 *) Set #! path to perl in apps/der_chop to where we found it
7275 instead of using a fixed path.
7278 *) SHA library changes for irix64-mips4-cc.
7281 *) Improvements for VMS support.
7285 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7287 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7288 This also avoids the problems with SC4.2 and unpatched SC5.
7289 [Andy Polyakov <appro@fy.chalmers.se>]
7291 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7292 These are required because of the typesafe stack would otherwise break
7293 existing code. If old code used a structure member which used to be STACK
7294 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7295 sk_num or sk_value it would produce an error because the num, data members
7296 are not present in STACK_OF. Now it just produces a warning. sk_set
7297 replaces the old method of assigning a value to sk_value
7298 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7299 that does this will no longer work (and should use sk_set instead) but
7300 this could be regarded as a "questionable" behaviour anyway.
7303 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7304 correctly handle encrypted S/MIME data.
7307 *) Change type of various DES function arguments from des_cblock
7308 (which means, in function argument declarations, pointer to char)
7309 to des_cblock * (meaning pointer to array with 8 char elements),
7310 which allows the compiler to do more typechecking; it was like
7311 that back in SSLeay, but with lots of ugly casts.
7313 Introduce new type const_des_cblock.
7316 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7317 problems: find RecipientInfo structure that matches recipient certificate
7318 and initialise the ASN1 structures properly based on passed cipher.
7321 *) Belatedly make the BN tests actually check the results.
7324 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7325 to and from BNs: it was completely broken. New compilation option
7326 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7327 key elements as negative integers.
7330 *) Reorganize and speed up MD5.
7331 [Andy Polyakov <appro@fy.chalmers.se>]
7334 [Richard Levitte <richard@levitte.org>]
7336 *) New option -out to asn1parse to allow the parsed structure to be
7337 output to a file. This is most useful when combined with the -strparse
7338 option to examine the output of things like OCTET STRINGS.
7341 *) Make SSL library a little more fool-proof by not requiring any longer
7342 that SSL_set_{accept,connect}_state be called before
7343 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7344 in many applications because usually everything *appeared* to work as
7345 intended anyway -- now it really works as intended).
7348 *) Move openssl.cnf out of lib/.
7351 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7352 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7353 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7354 [Ralf S. Engelschall]
7356 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7357 handle PKCS#7 enveloped data properly.
7358 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7360 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7361 copying pointers. The cert_st handling is changed by this in
7362 various ways (and thus what used to be known as ctx->default_cert
7363 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7364 any longer when s->cert does not give us what we need).
7365 ssl_cert_instantiate becomes obsolete by this change.
7366 As soon as we've got the new code right (possibly it already is?),
7367 we have solved a couple of bugs of the earlier code where s->cert
7368 was used as if it could not have been shared with other SSL structures.
7370 Note that using the SSL API in certain dirty ways now will result
7371 in different behaviour than observed with earlier library versions:
7372 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7373 does not influence s as it used to.
7375 In order to clean up things more thoroughly, inside SSL_SESSION
7376 we don't use CERT any longer, but a new structure SESS_CERT
7377 that holds per-session data (if available); currently, this is
7378 the peer's certificate chain and, for clients, the server's certificate
7379 and temporary key. CERT holds only those values that can have
7380 meaningful defaults in an SSL_CTX.
7383 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7384 from the internal representation. Various PKCS#7 fixes: remove some
7385 evil casts and set the enc_dig_alg field properly based on the signing
7389 *) Allow PKCS#12 password to be set from the command line or the
7390 environment. Let 'ca' get its config file name from the environment
7391 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7395 *) Allow certificate policies extension to use an IA5STRING for the
7396 organization field. This is contrary to the PKIX definition but
7397 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7401 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7402 without disallowing inline assembler and the like for non-pedantic builds.
7405 *) Support Borland C++ builder.
7406 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7411 *) SHA-1 cleanups and performance enhancements.
7412 [Andy Polyakov <appro@fy.chalmers.se>]
7414 *) Sparc v8plus assembler for the bignum library.
7415 [Andy Polyakov <appro@fy.chalmers.se>]
7417 *) Accept any -xxx and +xxx compiler options in Configure.
7420 *) Update HPUX configuration.
7423 *) Add missing sk_<type>_unshift() function to safestack.h
7424 [Ralf S. Engelschall]
7426 *) New function SSL_CTX_use_certificate_chain_file that sets the
7427 "extra_cert"s in addition to the certificate. (This makes sense
7428 only for "PEM" format files, as chains as a whole are not
7432 *) Support verify_depth from the SSL API.
7433 x509_vfy.c had what can be considered an off-by-one-error:
7434 Its depth (which was not part of the external interface)
7435 was actually counting the number of certificates in a chain;
7436 now it really counts the depth.
7439 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7440 instead of X509err, which often resulted in confusing error
7441 messages since the error codes are not globally unique
7442 (e.g. an alleged error in ssl3_accept when a certificate
7443 didn't match the private key).
7445 *) New function SSL_CTX_set_session_id_context that allows to set a default
7446 value (so that you don't need SSL_set_session_id_context for each
7447 connection using the SSL_CTX).
7450 *) OAEP decoding bug fix.
7453 *) Support INSTALL_PREFIX for package builders, as proposed by
7457 *) New Configure options "threads" and "no-threads". For systems
7458 where the proper compiler options are known (currently Solaris
7459 and Linux), "threads" is the default.
7462 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7465 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7466 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7467 such as /usr/local/bin.
7470 *) "make linux-shared" to build shared libraries.
7471 [Niels Poppe <niels@netbox.org>]
7473 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7476 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7477 extension adding in x509 utility.
7480 *) Remove NOPROTO sections and error code comments.
7483 *) Partial rewrite of the DEF file generator to now parse the ANSI
7487 *) New Configure options --prefix=DIR and --openssldir=DIR.
7490 *) Complete rewrite of the error code script(s). It is all now handled
7491 by one script at the top level which handles error code gathering,
7492 header rewriting and C source file generation. It should be much better
7493 than the old method: it now uses a modified version of Ulf's parser to
7494 read the ANSI prototypes in all header files (thus the old K&R definitions
7495 aren't needed for error creation any more) and do a better job of
7496 translating function codes into names. The old 'ASN1 error code imbedded
7497 in a comment' is no longer necessary and it doesn't use .err files which
7498 have now been deleted. Also the error code call doesn't have to appear all
7499 on one line (which resulted in some large lines...).
7502 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7505 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7506 0 (which usually indicates a closed connection), but continue reading.
7509 *) Fix some race conditions.
7512 *) Add support for CRL distribution points extension. Add Certificate
7513 Policies and CRL distribution points documentation.
7516 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7519 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7520 8 of keying material. Merlin has also confirmed interop with this fix
7521 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7522 [Merlin Hughes <merlin@baltimore.ie>]
7524 *) Fix lots of warnings.
7525 [Richard Levitte <levitte@stacken.kth.se>]
7527 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7528 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7529 [Richard Levitte <levitte@stacken.kth.se>]
7531 *) Fix problems with sizeof(long) == 8.
7532 [Andy Polyakov <appro@fy.chalmers.se>]
7534 *) Change functions to ANSI C.
7537 *) Fix typos in error codes.
7538 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7540 *) Remove defunct assembler files from Configure.
7543 *) SPARC v8 assembler BIGNUM implementation.
7544 [Andy Polyakov <appro@fy.chalmers.se>]
7546 *) Support for Certificate Policies extension: both print and set.
7547 Various additions to support the r2i method this uses.
7550 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7551 return a const string when you are expecting an allocated buffer.
7554 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7555 types DirectoryString and DisplayText.
7558 *) Add code to allow r2i extensions to access the configuration database,
7559 add an LHASH database driver and add several ctx helper functions.
7562 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7563 fail when they extended the size of a BIGNUM.
7566 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7567 support typesafe stack.
7570 *) Fix typo in SSL_[gs]et_options().
7571 [Nils Frostberg <nils@medcom.se>]
7573 *) Delete various functions and files that belonged to the (now obsolete)
7574 old X509V3 handling code.
7577 *) New Configure option "rsaref".
7580 *) Don't auto-generate pem.h.
7583 *) Introduce type-safe ASN.1 SETs.
7586 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7587 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7589 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7590 that links with OpenSSL (well at least cause lots of warnings), but fear
7591 not: the conversion is trivial, and it eliminates loads of evil casts. A
7592 few STACKed things have been converted already. Feel free to convert more.
7593 In the fullness of time, I'll do away with the STACK type altogether.
7596 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7597 specified in <certfile> by updating the entry in the index.txt file.
7598 This way one no longer has to edit the index.txt file manually for
7599 revoking a certificate. The -revoke option does the gory details now.
7600 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7602 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7603 `-text' option at all and this way the `-noout -text' combination was
7604 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7605 [Ralf S. Engelschall]
7607 *) Make sure a corresponding plain text error message exists for the
7608 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7609 verify callback function determined that a certificate was revoked.
7610 [Ralf S. Engelschall]
7612 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7613 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7614 all available cipers including rc5, which was forgotten until now.
7615 In order to let the testing shell script know which algorithms
7616 are available, a new (up to now undocumented) command
7617 "openssl list-cipher-commands" is used.
7620 *) Bugfix: s_client occasionally would sleep in select() when
7621 it should have checked SSL_pending() first.
7624 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7625 the raw DSA values prior to ASN.1 encoding.
7628 *) Tweaks to Configure
7629 [Niels Poppe <niels@netbox.org>]
7631 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7635 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7638 *) New config option to avoid instructions that are illegal on the 80386.
7639 The default code is faster, but requires at least a 486.
7642 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7643 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7644 same as SSL2_VERSION anyway.
7647 *) New "-showcerts" option for s_client.
7650 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7651 application. Various cleanups and fixes.
7654 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7655 modify error routines to work internally. Add error codes and PBE init
7656 to library startup routines.
7659 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7660 packing functions to asn1 and evp. Changed function names and error
7661 codes along the way.
7664 *) PKCS12 integration: and so it begins... First of several patches to
7665 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7666 objects to objects.h
7669 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7670 and display support for Thawte strong extranet extension.
7673 *) Add LinuxPPC support.
7674 [Jeff Dubrule <igor@pobox.org>]
7676 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7677 bn_div_words in alpha.s.
7678 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7680 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7681 OAEP isn't supported when OpenSSL is built with RSAref.
7682 [Ulf Moeller <ulf@fitug.de>]
7684 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7685 so they no longer are missing under -DNOPROTO.
7686 [Soren S. Jorvang <soren@t.dk>]
7689 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7691 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7692 doesn't work when the session is reused. Coming soon!
7695 *) Fix a security hole, that allows sessions to be reused in the wrong
7696 context thus bypassing client cert protection! All software that uses
7697 client certs and session caches in multiple contexts NEEDS PATCHING to
7698 allow session reuse! A fuller solution is in the works.
7699 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7701 *) Some more source tree cleanups (removed obsolete files
7702 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7703 permission on "config" script to be executable) and a fix for the INSTALL
7705 [Ulf Moeller <ulf@fitug.de>]
7707 *) Remove some legacy and erroneous uses of malloc, free instead of
7709 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7711 *) Make rsa_oaep_test return non-zero on error.
7712 [Ulf Moeller <ulf@fitug.de>]
7714 *) Add support for native Solaris shared libraries. Configure
7715 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7716 if someone would make that last step automatic.
7717 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7719 *) ctx_size was not built with the right compiler during "make links". Fixed.
7722 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7723 except NULL ciphers". This means the default cipher list will no longer
7724 enable NULL ciphers. They need to be specifically enabled e.g. with
7725 the string "DEFAULT:eNULL".
7728 *) Fix to RSA private encryption routines: if p < q then it would
7729 occasionally produce an invalid result. This will only happen with
7730 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7733 *) Be less restrictive and allow also `perl util/perlpath.pl
7734 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7735 because this way one can also use an interpreter named `perl5' (which is
7736 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7737 installed as `perl').
7738 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7740 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7741 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7743 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7744 advapi32.lib to Win32 build and change the pem test comparision
7745 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7746 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7747 and crypto/des/ede_cbcm_enc.c.
7750 *) DES quad checksum was broken on big-endian architectures. Fixed.
7753 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7754 Win32 test batch file so it (might) work again. The Win32 test batch file
7755 is horrible: I feel ill....
7758 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7759 in e_os.h. Audit of header files to check ANSI and non ANSI
7760 sections: 10 functions were absent from non ANSI section and not exported
7761 from Windows DLLs. Fixed up libeay.num for new functions.
7764 *) Make `openssl version' output lines consistent.
7765 [Ralf S. Engelschall]
7767 *) Fix Win32 symbol export lists for BIO functions: Added
7768 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7769 to ms/libeay{16,32}.def.
7770 [Ralf S. Engelschall]
7772 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7773 fine under Unix and passes some trivial tests I've now added. But the
7774 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7775 added to make sure no one expects that this stuff really works in the
7776 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7777 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7779 [Ralf S. Engelschall]
7781 *) Fix the generation of two part addresses in perl.
7782 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7784 *) Add config entry for Linux on MIPS.
7785 [John Tobey <jtobey@channel1.com>]
7787 *) Make links whenever Configure is run, unless we are on Windoze.
7790 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7791 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7795 *) Add a useful kludge to allow package maintainers to specify compiler and
7796 other platforms details on the command line without having to patch the
7797 Configure script everytime: One now can use ``perl Configure
7798 <id>:<details>'', i.e. platform ids are allowed to have details appended
7799 to them (seperated by colons). This is treated as there would be a static
7800 pre-configured entry in Configure's %table under key <id> with value
7801 <details> and ``perl Configure <id>'' is called. So, when you want to
7802 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7803 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7804 now, which overrides the FreeBSD-elf entry on-the-fly.
7805 [Ralf S. Engelschall]
7807 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7810 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7811 on the `perl Configure ...' command line. This way one can compile
7812 OpenSSL libraries with Position Independent Code (PIC) which is needed
7813 for linking it into DSOs.
7814 [Ralf S. Engelschall]
7816 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7820 *) Cleaned up the LICENSE document: The official contact for any license
7821 questions now is the OpenSSL core team under openssl-core@openssl.org.
7822 And add a paragraph about the dual-license situation to make sure people
7823 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7824 to the OpenSSL toolkit.
7825 [Ralf S. Engelschall]
7827 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7828 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7829 Additonally cleaned up the `make links' target: Remove unnecessary
7830 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7831 to speed processing and no longer clutter the display with confusing
7832 stuff. Instead only the actually done links are displayed.
7833 [Ralf S. Engelschall]
7835 *) Permit null encryption ciphersuites, used for authentication only. It used
7836 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7837 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7841 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7842 signed attributes when verifying signatures (this would break them),
7843 the detached data encoding was wrong and public keys obtained using
7844 X509_get_pubkey() weren't freed.
7847 *) Add text documentation for the BUFFER functions. Also added a work around
7848 to a Win95 console bug. This was triggered by the password read stuff: the
7849 last character typed gets carried over to the next fread(). If you were
7850 generating a new cert request using 'req' for example then the last
7851 character of the passphrase would be CR which would then enter the first
7855 *) Added the new `Includes OpenSSL Cryptography Software' button as
7856 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7857 button and can be used by applications based on OpenSSL to show the
7858 relationship to the OpenSSL project.
7859 [Ralf S. Engelschall]
7861 *) Remove confusing variables in function signatures in files
7862 ssl/ssl_lib.c and ssl/ssl.h.
7863 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7865 *) Don't install bss_file.c under PREFIX/include/
7866 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7868 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7869 functions that return function pointers and has support for NT specific
7870 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7871 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7872 unsigned to signed types: this was killing the Win32 compile.
7875 *) Add new certificate file to stack functions,
7876 SSL_add_dir_cert_subjects_to_stack() and
7877 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7878 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7879 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7880 This means that Apache-SSL and similar packages don't have to mess around
7881 to add as many CAs as they want to the preferred list.
7884 *) Experiment with doxygen documentation. Currently only partially applied to
7886 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7887 openssl.doxy as the configuration file.
7890 *) Get rid of remaining C++-style comments which strict C compilers hate.
7891 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7893 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7894 compiled in by default: it has problems with large keys.
7897 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7898 DH private keys and/or callback functions which directly correspond to
7899 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7900 is needed for applications which have to configure certificates on a
7901 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7903 For the RSA certificate situation is makes no difference, but
7904 for the DSA certificate situation this fixes the "no shared cipher"
7905 problem where the OpenSSL cipher selection procedure failed because the
7906 temporary keys were not overtaken from the context and the API provided
7907 no way to reconfigure them.
7908 The new functions now let applications reconfigure the stuff and they
7909 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7910 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7911 non-public-API function ssl_cert_instantiate() is used as a helper
7912 function and also to reduce code redundancy inside ssl_rsa.c.
7913 [Ralf S. Engelschall]
7915 *) Move s_server -dcert and -dkey options out of the undocumented feature
7916 area because they are useful for the DSA situation and should be
7917 recognized by the users.
7918 [Ralf S. Engelschall]
7920 *) Fix the cipher decision scheme for export ciphers: the export bits are
7921 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7922 SSL_EXP_MASK. So, the original variable has to be used instead of the
7923 already masked variable.
7924 [Richard Levitte <levitte@stacken.kth.se>]
7926 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7927 [Richard Levitte <levitte@stacken.kth.se>]
7929 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7930 from `int' to `unsigned int' because it's a length and initialized by
7931 EVP_DigestFinal() which expects an `unsigned int *'.
7932 [Richard Levitte <levitte@stacken.kth.se>]
7934 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7935 script. Instead use the usual Shell->Perl transition trick.
7936 [Ralf S. Engelschall]
7938 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7939 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7940 -noout -modulus' as it's already the case for `openssl rsa -noout
7941 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7942 currently the public key is printed (a decision which was already done by
7943 `openssl dsa -modulus' in the past) which serves a similar purpose.
7944 Additionally the NO_RSA no longer completely removes the whole -modulus
7945 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7947 [Ralf S. Engelschall]
7949 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7950 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7951 [Arne Ansper <arne@ats.cyber.ee>]
7953 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7954 to be added. Now both 'req' and 'ca' can use new objects defined in the
7958 *) Add cool BIO that does syslog (or event log on NT).
7959 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7961 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7962 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7963 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7964 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7967 *) Add preliminary config info for new extension code.
7970 *) Make RSA_NO_PADDING really use no padding.
7971 [Ulf Moeller <ulf@fitug.de>]
7973 *) Generate errors when private/public key check is done.
7976 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7977 for some CRL extensions and new objects added.
7980 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7981 key usage extension and fuller support for authority key id.
7984 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7985 padding method for RSA, which is recommended for new applications in PKCS
7986 #1 v2.0 (RFC 2437, October 1998).
7987 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7988 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7989 against Bleichbacher's attack on RSA.
7990 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7993 *) Updates to the new SSL compression code
7994 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7996 *) Fix so that the version number in the master secret, when passed
7997 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7998 (because the server will not accept higher), that the version number
7999 is 0x03,0x01, not 0x03,0x00
8000 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8002 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8003 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8004 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8007 *) Support for RAW extensions where an arbitrary extension can be
8008 created by including its DER encoding. See apps/openssl.cnf for
8012 *) Make sure latest Perl versions don't interpret some generated C array
8013 code as Perl array code in the crypto/err/err_genc.pl script.
8014 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8016 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8017 not many people have the assembler. Various Win32 compilation fixes and
8018 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8022 *) Modify configure script 'Configure' to automatically create crypto/date.h
8023 file under Win32 and also build pem.h from pem.org. New script
8024 util/mkfiles.pl to create the MINFO file on environments that can't do a
8025 'make files': perl util/mkfiles.pl >MINFO should work.
8028 *) Major rework of DES function declarations, in the pursuit of correctness
8029 and purity. As a result, many evil casts evaporated, and some weirdness,
8030 too. You may find this causes warnings in your code. Zapping your evil
8031 casts will probably fix them. Mostly.
8034 *) Fix for a typo in asn1.h. Bug fix to object creation script
8035 obj_dat.pl. It considered a zero in an object definition to mean
8036 "end of object": none of the objects in objects.h have any zeros
8037 so it wasn't spotted.
8038 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8040 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8041 Masking (CBCM). In the absence of test vectors, the best I have been able
8042 to do is check that the decrypt undoes the encrypt, so far. Send me test
8043 vectors if you have them.
8046 *) Correct calculation of key length for export ciphers (too much space was
8047 allocated for null ciphers). This has not been tested!
8050 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8051 message is now correct (it understands "crypto" and "ssl" on its
8052 command line). There is also now an "update" option. This will update
8053 the util/ssleay.num and util/libeay.num files with any new functions.
8055 perl util/mkdef.pl crypto ssl update
8056 it will update them.
8059 *) Overhauled the Perl interface (perl/*):
8060 - ported BN stuff to OpenSSL's different BN library
8061 - made the perl/ source tree CVS-aware
8062 - renamed the package from SSLeay to OpenSSL (the files still contain
8063 their history because I've copied them in the repository)
8064 - removed obsolete files (the test scripts will be replaced
8065 by better Test::Harness variants in the future)
8066 [Ralf S. Engelschall]
8068 *) First cut for a very conservative source tree cleanup:
8069 1. merge various obsolete readme texts into doc/ssleay.txt
8070 where we collect the old documents and readme texts.
8071 2. remove the first part of files where I'm already sure that we no
8072 longer need them because of three reasons: either they are just temporary
8073 files which were left by Eric or they are preserved original files where
8074 I've verified that the diff is also available in the CVS via "cvs diff
8075 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8076 the crypto/md/ stuff).
8077 [Ralf S. Engelschall]
8079 *) More extension code. Incomplete support for subject and issuer alt
8080 name, issuer and authority key id. Change the i2v function parameters
8081 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8082 what that's for :-) Fix to ASN1 macro which messed up
8083 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8086 *) Preliminary support for ENUMERATED type. This is largely copied from the
8090 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8091 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8093 *) Make sure `make rehash' target really finds the `openssl' program.
8094 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8096 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8097 like to hear about it if this slows down other processors.
8100 *) Add CygWin32 platform information to Configure script.
8101 [Alan Batie <batie@aahz.jf.intel.com>]
8103 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8104 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8106 *) New program nseq to manipulate netscape certificate sequences
8109 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8113 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8114 but the BN code had some problems that would cause failures when
8115 doing certificate verification and some other functions.
8116 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8118 *) Add ASN1 and PEM code to support netscape certificate sequences.
8121 *) Add ASN1 and PEM code to support netscape certificate sequences.
8124 *) Add several PKIX and private extended key usage OIDs.
8127 *) Modify the 'ca' program to handle the new extension code. Modify
8128 openssl.cnf for new extension format, add comments.
8131 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8132 and add a sample to openssl.cnf so req -x509 now adds appropriate
8136 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8137 error code, add initial support to X509_print() and x509 application.
8140 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8141 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8142 stuff is currently isolated and isn't even compiled yet.
8145 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8146 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8147 Removed the versions check from X509 routines when loading extensions:
8148 this allows certain broken certificates that don't set the version
8149 properly to be processed.
8152 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8153 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8154 can still be regenerated with "make depend".
8157 *) Spelling mistake in C version of CAST-128.
8158 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8160 *) Changes to the error generation code. The perl script err-code.pl
8161 now reads in the old error codes and retains the old numbers, only
8162 adding new ones if necessary. It also only changes the .err files if new
8163 codes are added. The makefiles have been modified to only insert errors
8164 when needed (to avoid needlessly modifying header files). This is done
8165 by only inserting errors if the .err file is newer than the auto generated
8166 C file. To rebuild all the error codes from scratch (the old behaviour)
8167 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8168 or delete all the .err files.
8171 *) CAST-128 was incorrectly implemented for short keys. The C version has
8172 been fixed, but is untested. The assembler versions are also fixed, but
8173 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8174 to regenerate it if needed.
8175 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8176 Hagino <itojun@kame.net>]
8178 *) File was opened incorrectly in randfile.c.
8179 [Ulf Möller <ulf@fitug.de>]
8181 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8182 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8183 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8184 al: it's just almost always a UTCTime. Note this patch adds new error
8185 codes so do a "make errors" if there are problems.
8188 *) Correct Linux 1 recognition in config.
8189 [Ulf Möller <ulf@fitug.de>]
8191 *) Remove pointless MD5 hash when using DSA keys in ca.
8192 [Anonymous <nobody@replay.com>]
8194 *) Generate an error if given an empty string as a cert directory. Also
8195 generate an error if handed NULL (previously returned 0 to indicate an
8196 error, but didn't set one).
8197 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8199 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8202 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8203 parameters. This was causing a warning which killed off the Win32 compile.
8206 *) Remove C++ style comments from crypto/bn/bn_local.h.
8207 [Neil Costigan <neil.costigan@celocom.com>]
8209 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8210 based on a text string, looking up short and long names and finally
8211 "dot" format. The "dot" format stuff didn't work. Added new function
8212 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8213 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8214 OID is not part of the table.
8217 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8218 X509_LOOKUP_by_alias().
8221 *) Sort openssl functions by name.
8224 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8225 encryption from sample DSA keys (in case anyone is interested the password
8229 *) Make _all_ *_free functions accept a NULL pointer.
8230 [Frans Heymans <fheymans@isaserver.be>]
8232 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8234 [Anonymous <nobody@replay.com>]
8236 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8237 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8239 *) Don't blow it for numeric -newkey arguments to apps/req.
8240 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8242 *) Temp key "for export" tests were wrong in s3_srvr.c.
8243 [Anonymous <nobody@replay.com>]
8245 *) Add prototype for temp key callback functions
8246 SSL_CTX_set_tmp_{rsa,dh}_callback().
8249 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8250 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8253 *) X509_name_add_entry() freed the wrong thing after an error.
8254 [Arne Ansper <arne@ats.cyber.ee>]
8256 *) rsa_eay.c would attempt to free a NULL context.
8257 [Arne Ansper <arne@ats.cyber.ee>]
8259 *) BIO_s_socket() had a broken should_retry() on Windoze.
8260 [Arne Ansper <arne@ats.cyber.ee>]
8262 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8263 [Arne Ansper <arne@ats.cyber.ee>]
8265 *) Make sure the already existing X509_STORE->depth variable is initialized
8266 in X509_STORE_new(), but document the fact that this variable is still
8267 unused in the certificate verification process.
8268 [Ralf S. Engelschall]
8270 *) Fix the various library and apps files to free up pkeys obtained from
8271 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8274 *) Fix reference counting in X509_PUBKEY_get(). This makes
8275 demos/maurice/example2.c work, amongst others, probably.
8276 [Steve Henson and Ben Laurie]
8278 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8279 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8280 are no longer created. This way we have a single and consistent command
8281 line interface `openssl <command>', similar to `cvs <command>'.
8282 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8284 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8285 BIT STRING wrapper always have zero unused bits.
8288 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8291 *) Make the top-level INSTALL documentation easier to understand.
8294 *) Makefiles updated to exit if an error occurs in a sub-directory
8295 make (including if user presses ^C) [Paul Sutton]
8297 *) Make Montgomery context stuff explicit in RSA data structure.
8300 *) Fix build order of pem and err to allow for generated pem.h.
8303 *) Fix renumbering bug in X509_NAME_delete_entry().
8306 *) Enhanced the err-ins.pl script so it makes the error library number
8307 global and can add a library name. This is needed for external ASN1 and
8308 other error libraries.
8311 *) Fixed sk_insert which never worked properly.
8314 *) Fix ASN1 macros so they can handle indefinite length construted
8315 EXPLICIT tags. Some non standard certificates use these: they can now
8319 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8320 into a single doc/ssleay.txt bundle. This way the information is still
8321 preserved but no longer messes up this directory. Now it's new room for
8322 the new set of documenation files.
8323 [Ralf S. Engelschall]
8325 *) SETs were incorrectly DER encoded. This was a major pain, because they
8326 shared code with SEQUENCEs, which aren't coded the same. This means that
8327 almost everything to do with SETs or SEQUENCEs has either changed name or
8328 number of arguments.
8329 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8331 *) Fix test data to work with the above.
8334 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8335 was already fixed by Eric for 0.9.1 it seems.
8336 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8338 *) Autodetect FreeBSD3.
8341 *) Fix various bugs in Configure. This affects the following platforms:
8345 unixware-2.0-pentium
8349 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8350 before they are needed.
8353 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8357 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8359 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8360 changed SSLeay to OpenSSL in version strings.
8361 [Ralf S. Engelschall]
8363 *) Some fixups to the top-level documents.
8366 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8367 because the symlink to include/ was missing.
8368 [Ralf S. Engelschall]
8370 *) Incorporated the popular no-RSA/DSA-only patches
8371 which allow to compile a RSA-free SSLeay.
8372 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8374 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8375 when "ssleay" is still not found.
8376 [Ralf S. Engelschall]
8378 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8379 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8381 *) Updated the README file.
8382 [Ralf S. Engelschall]
8384 *) Added various .cvsignore files in the CVS repository subdirs
8385 to make a "cvs update" really silent.
8386 [Ralf S. Engelschall]
8388 *) Recompiled the error-definition header files and added
8389 missing symbols to the Win32 linker tables.
8390 [Ralf S. Engelschall]
8392 *) Cleaned up the top-level documents;
8393 o new files: CHANGES and LICENSE
8394 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8395 o merged COPYRIGHT into LICENSE
8396 o removed obsolete TODO file
8397 o renamed MICROSOFT to INSTALL.W32
8398 [Ralf S. Engelschall]
8400 *) Removed dummy files from the 0.9.1b source tree:
8401 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8402 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8403 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8404 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8405 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8406 [Ralf S. Engelschall]
8408 *) Added various platform portability fixes.
8411 *) The Genesis of the OpenSSL rpject:
8412 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8413 Young and Tim J. Hudson created while they were working for C2Net until
8415 [The OpenSSL Project]
8418 Changes between 0.9.0b and 0.9.1b [not released]
8420 *) Updated a few CA certificates under certs/
8423 *) Changed some BIGNUM api stuff.
8426 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8427 DGUX x86, Linux Alpha, etc.
8430 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8431 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8435 *) Add -strparse option to asn1pars program which parses nested
8437 [Dr Stephen Henson <shenson@bigfoot.com>]
8439 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8442 *) DSA fix for "ca" program.
8445 *) Added "-genkey" option to "dsaparam" program.
8448 *) Added RIPE MD160 (rmd160) message digest.
8451 *) Added -a (all) option to "ssleay version" command.
8454 *) Added PLATFORM define which is the id given to Configure.
8457 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8460 *) Extended the ASN.1 parser routines.
8463 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8466 *) Added a BN_CTX to the BN library.
8469 *) Fixed the weak key values in DES library
8472 *) Changed API in EVP library for cipher aliases.
8475 *) Added support for RC2/64bit cipher.
8478 *) Converted the lhash library to the crypto/mem.c functions.
8481 *) Added more recognized ASN.1 object ids.
8484 *) Added more RSA padding checks for SSL/TLS.
8487 *) Added BIO proxy/filter functionality.
8490 *) Added extra_certs to SSL_CTX which can be used
8491 send extra CA certificates to the client in the CA cert chain sending
8492 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8495 *) Now Fortezza is denied in the authentication phase because
8496 this is key exchange mechanism is not supported by SSLeay at all.
8499 *) Additional PKCS1 checks.
8502 *) Support the string "TLSv1" for all TLS v1 ciphers.
8505 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8506 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8509 *) Fixed a few memory leaks.
8512 *) Fixed various code and comment typos.
8515 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8516 bytes sent in the client random.
8517 [Edward Bishop <ebishop@spyglass.com>]
projects / thirdparty / openssl.git / blob