5 Changes between 0.9.8t and 0.9.8u [xx XXX xxxx]
9 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
11 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
12 Thanks to Antonio Martin, Enterprise Secure Access Research and
13 Development, Cisco Systems, Inc. for discovering this bug and
14 preparing a fix. (CVE-2012-0050)
17 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
19 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
20 of the Vaudenay padding oracle attack on CBC mode encryption
21 which enables an efficient plaintext recovery attack against
22 the OpenSSL implementation of DTLS. Their attack exploits timing
23 differences arising during decryption processing. A research
24 paper describing this attack can be found at:
25 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
26 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
27 Security Group at Royal Holloway, University of London
28 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
29 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
30 for preparing the fix. (CVE-2011-4108)
31 [Robin Seggelmann, Michael Tuexen]
33 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
34 [Ben Laurie, Kasper <ekasper@google.com>]
36 *) Clear bytes used for block padding of SSL 3.0 records.
38 [Adam Langley (Google)]
40 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
41 Kadianakis <desnacked@gmail.com> for discovering this issue and
42 Adam Langley for preparing the fix. (CVE-2011-4619)
43 [Adam Langley (Google)]
45 *) Prevent malformed RFC3779 data triggering an assertion failure.
46 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
47 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
48 [Rob Austein <sra@hactrn.net>]
50 *) Fix ssl_ciph.c set-up race.
51 [Adam Langley (Google)]
53 *) Fix spurious failures in ecdsatest.c.
54 [Emilia Käsper (Google)]
56 *) Fix the BIO_f_buffer() implementation (which was mixing different
57 interpretations of the '..._len' fields).
58 [Adam Langley (Google)]
60 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
61 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
62 threads won't reuse the same blinding coefficients.
64 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
65 lock to call BN_BLINDING_invert_ex, and avoids one use of
66 BN_BLINDING_update for each BN_BLINDING structure (previously,
67 the last update always remained unused).
68 [Emilia Käsper (Google)]
70 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
71 for multi-threaded use of ECDH.
72 [Adam Langley (Google)]
74 *) Fix x509_name_ex_d2i memory leak on bad inputs.
77 *) Add protection against ECDSA timing attacks as mentioned in the paper
78 by Billy Bob Brumley and Nicola Tuveri, see:
80 http://eprint.iacr.org/2011/232.pdf
82 [Billy Bob Brumley and Nicola Tuveri]
84 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
86 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
87 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
89 *) Fix bug in string printing code: if *any* escaping is enabled we must
90 escape the escape character (backslash) or the resulting string is
94 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
96 *) Disable code workaround for ancient and obsolete Netscape browsers
97 and servers: an attacker can use it in a ciphersuite downgrade attack.
98 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
101 *) Fixed J-PAKE implementation error, originally discovered by
102 Sebastien Martini, further info and confirmation from Stefan
103 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
106 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
108 *) Fix extension code to avoid race conditions which can result in a buffer
109 overrun vulnerability: resumed sessions must not be modified as they can
110 be shared by multiple threads. CVE-2010-3864
113 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
116 *) Don't reencode certificate when calculating signature: cache and use
117 the original encoding instead. This makes signature verification of
118 some broken encodings work correctly.
121 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
122 is also one of the inputs.
123 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
125 *) Don't repeatedly append PBE algorithms to table if they already exist.
126 Sort table on each new add. This effectively makes the table read only
127 after all algorithms are added and subsequent calls to PKCS12_pbe_add
131 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
133 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
136 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
137 access or freeing data twice (CVE-2010-0742)
138 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
140 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
141 common in certificates and some applications which only call
142 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
146 Reduce copying into .apps and .test in makevms.com
147 Don't try to use blank CA certificate in CA.com
148 Allow use of C files from original directories in maketests.com
149 [Steven M. Schweda" <sms@antinode.info>]
151 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
153 *) When rejecting SSL/TLS records due to an incorrect version number, never
154 update s->server with a new major version number. As of
155 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
156 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
157 the previous behavior could result in a read attempt at NULL when
158 receiving specific incorrect SSL/TLS records once record payload
159 protection is active. (CVE-2010-0740)
160 [Bodo Moeller, Adam Langley <agl@chromium.org>]
162 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
163 could be crashed if the relevant tables were not present (e.g. chrooted).
164 [Tomas Hoger <thoger@redhat.com>]
166 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
168 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
169 [Martin Olsson, Neel Mehta]
171 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
172 accommodate for stack sorting, always a write lock!).
175 *) On some versions of WIN32 Heap32Next is very slow. This can cause
176 excessive delays in the RAND_poll(): over a minute. As a workaround
177 include a time check in the inner Heap32Next loop too.
180 *) The code that handled flushing of data in SSL/TLS originally used the
181 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
182 the problem outlined in PR#1949. The fix suggested there however can
183 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
184 of Apache). So instead simplify the code to flush unconditionally.
185 This should be fine since flushing with no data to flush is a no op.
188 *) Handle TLS versions 2.0 and later properly and correctly use the
189 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
190 off ancient servers have a habit of sticking around for a while...
193 *) Modify compression code so it frees up structures without using the
194 ex_data callbacks. This works around a problem where some applications
195 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
196 restarting) then use compression (e.g. SSL with compression) later.
197 This results in significant per-connection memory leaks and
198 has caused some security issues including CVE-2008-1678 and
202 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
203 change when encrypting or decrypting.
206 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
207 connect and renegotiate with servers which do not support RI.
208 Until RI is more widely deployed this option is enabled by default.
211 *) Add "missing" ssl ctrls to clear options and mode.
214 *) If client attempts to renegotiate and doesn't support RI respond with
215 a no_renegotiation alert as required by RFC5746. Some renegotiating
216 TLS clients will continue a connection gracefully when they receive
217 the alert. Unfortunately OpenSSL mishandled this alert and would hang
218 waiting for a server hello which it will never receive. Now we treat a
219 received no_renegotiation alert as a fatal error. This is because
220 applications requesting a renegotiation might well expect it to succeed
221 and would have no code in place to handle the server denying it so the
222 only safe thing to do is to terminate the connection.
225 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
226 peer supports secure renegotiation and 0 otherwise. Print out peer
227 renegotiation support in s_client/s_server.
230 *) Replace the highly broken and deprecated SPKAC certification method with
231 the updated NID creation version. This should correctly handle UTF8.
234 *) Implement RFC5746. Re-enable renegotiation but require the extension
235 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
236 turns out to be a bad idea. It has been replaced by
237 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
238 SSL_CTX_set_options(). This is really not recommended unless you
239 know what you are doing.
240 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
242 *) Fixes to stateless session resumption handling. Use initial_ctx when
243 issuing and attempting to decrypt tickets in case it has changed during
244 servername handling. Use a non-zero length session ID when attempting
245 stateless session resumption: this makes it possible to determine if
246 a resumption has occurred immediately after receiving server hello
247 (several places in OpenSSL subtly assume this) instead of later in
251 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
252 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
253 fixes for a few places where the return code is not checked
255 [Julia Lawall <julia@diku.dk>]
257 *) Add --strict-warnings option to Configure script to include devteam
258 warnings in other configurations.
261 *) Add support for --libdir option and LIBDIR variable in makefiles. This
262 makes it possible to install openssl libraries in locations which
263 have names other than "lib", for example "/usr/lib64" which some
265 [Steve Henson, based on patch from Jeremy Utley]
267 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
268 X690 8.9.12 and can produce some misleading textual output of OIDs.
269 [Steve Henson, reported by Dan Kaminsky]
271 *) Delete MD2 from algorithm tables. This follows the recommendation in
272 several standards that it is not used in new applications due to
273 several cryptographic weaknesses. For binary compatibility reasons
274 the MD2 API is still compiled in by default.
277 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
281 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
282 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
284 [Guenter <lists@gknw.net>]
286 *) Fix the server certificate chain building code to use X509_verify_cert(),
287 it used to have an ad-hoc builder which was unable to cope with anything
288 other than a simple chain.
289 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
291 *) Don't check self signed certificate signatures in X509_verify_cert()
292 by default (a flag can override this): it just wastes time without
293 adding any security. As a useful side effect self signed root CAs
294 with non-FIPS digests are now usable in FIPS mode.
297 *) In dtls1_process_out_of_seq_message() the check if the current message
298 is already buffered was missing. For every new message was memory
299 allocated, allowing an attacker to perform an denial of service attack
300 with sending out of seq handshake messages until there is no memory
301 left. Additionally every future messege was buffered, even if the
302 sequence number made no sense and would be part of another handshake.
303 So only messages with sequence numbers less than 10 in advance will be
304 buffered. (CVE-2009-1378)
305 [Robin Seggelmann, discovered by Daniel Mentz]
307 *) Records are buffered if they arrive with a future epoch to be
308 processed after finishing the corresponding handshake. There is
309 currently no limitation to this buffer allowing an attacker to perform
310 a DOS attack with sending records with future epochs until there is no
311 memory left. This patch adds the pqueue_size() function to detemine
312 the size of a buffer and limits the record buffer to 100 entries.
314 [Robin Seggelmann, discovered by Daniel Mentz]
316 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
317 parent structure is freed. (CVE-2009-1379)
320 *) Handle non-blocking I/O properly in SSL_shutdown() call.
321 [Darryl Miles <darryl-mailinglists@netbauds.net>]
324 [Ilya O. <vrghost@gmail.com>]
326 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
328 *) Disable renegotiation completely - this fixes a severe security
329 problem (CVE-2009-3555) at the cost of breaking all
330 renegotiation. Renegotiation can be re-enabled by setting
331 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
332 run-time. This is really not recommended unless you know what
336 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
338 *) Don't set val to NULL when freeing up structures, it is freed up by
339 underlying code. If sizeof(void *) > sizeof(long) this can result in
340 zeroing past the valid field. (CVE-2009-0789)
341 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
343 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
344 checked correctly. This would allow some invalid signed attributes to
345 appear to verify correctly. (CVE-2009-0591)
346 [Ivan Nestlerode <inestlerode@us.ibm.com>]
348 *) Reject UniversalString and BMPString types with invalid lengths. This
349 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
350 a legal length. (CVE-2009-0590)
353 *) Set S/MIME signing as the default purpose rather than setting it
354 unconditionally. This allows applications to override it at the store
358 *) Permit restricted recursion of ASN1 strings. This is needed in practice
359 to handle some structures.
362 *) Improve efficiency of mem_gets: don't search whole buffer each time
364 [Jeremy Shapiro <jnshapir@us.ibm.com>]
366 *) New -hex option for openssl rand.
369 *) Print out UTF8String and NumericString when parsing ASN1.
372 *) Support NumericString type for name components.
375 *) Allow CC in the environment to override the automatically chosen
376 compiler. Note that nothing is done to ensure flags work with the
380 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
382 *) Properly check EVP_VerifyFinal() and similar return values
384 [Ben Laurie, Bodo Moeller, Google Security Team]
386 *) Enable TLS extensions by default.
389 *) Allow the CHIL engine to be loaded, whether the application is
390 multithreaded or not. (This does not release the developer from the
391 obligation to set up the dynamic locking callbacks.)
392 [Sander Temme <sander@temme.net>]
394 *) Use correct exit code if there is an error in dgst command.
395 [Steve Henson; problem pointed out by Roland Dirlewanger]
397 *) Tweak Configure so that you need to say "experimental-jpake" to enable
398 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
401 *) Add experimental JPAKE support, including demo authentication in
402 s_client and s_server.
405 *) Set the comparison function in v3_addr_canonize().
406 [Rob Austein <sra@hactrn.net>]
408 *) Add support for XMPP STARTTLS in s_client.
409 [Philip Paeps <philip@freebsd.org>]
411 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
412 to ensure that even with this option, only ciphersuites in the
413 server's preference list will be accepted. (Note that the option
414 applies only when resuming a session, so the earlier behavior was
415 just about the algorithm choice for symmetric cryptography.)
418 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
420 *) Fix NULL pointer dereference if a DTLS server received
421 ChangeCipherSpec as first record (CVE-2009-1386).
424 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
425 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
428 *) The fix in 0.9.8c that supposedly got rid of unsafe
429 double-checked locking was incomplete for RSA blinding,
430 addressing just one layer of what turns out to have been
431 doubly unsafe triple-checked locking.
433 So now fix this for real by retiring the MONT_HELPER macro
434 in crypto/rsa/rsa_eay.c.
436 [Bodo Moeller; problem pointed out by Marius Schilder]
438 *) Various precautionary measures:
440 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
442 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
443 (NB: This would require knowledge of the secret session ticket key
444 to exploit, in which case you'd be SOL either way.)
446 - Change bn_nist.c so that it will properly handle input BIGNUMs
447 outside the expected range.
449 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
452 [Neel Mehta, Bodo Moeller]
454 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
455 the load fails. Useful for distros.
456 [Ben Laurie and the FreeBSD team]
458 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
461 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
464 *) Expand ENGINE to support engine supplied SSL client certificate functions.
466 This work was sponsored by Logica.
469 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
470 keystores. Support for SSL/TLS client authentication too.
471 Not compiled unless enable-capieng specified to Configure.
473 This work was sponsored by Logica.
476 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
477 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
478 attribute creation routines such as certifcate requests and PKCS#12
482 Changes between 0.9.8g and 0.9.8h [28 May 2008]
484 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
485 handshake which could lead to a cilent crash as found using the
486 Codenomicon TLS test suite (CVE-2008-1672)
487 [Steve Henson, Mark Cox]
489 *) Fix double free in TLS server name extensions which could lead to
490 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
493 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
495 Clear the error queue to ensure that error entries left from
496 older function calls do not interfere with the correct operation.
497 [Lutz Jaenicke, Erik de Castro Lopo]
499 *) Remove root CA certificates of commercial CAs:
501 The OpenSSL project does not recommend any specific CA and does not
502 have any policy with respect to including or excluding any CA.
503 Therefore it does not make any sense to ship an arbitrary selection
504 of root CA certificates with the OpenSSL software.
507 *) RSA OAEP patches to fix two separate invalid memory reads.
508 The first one involves inputs when 'lzero' is greater than
509 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
510 before the beginning of from). The second one involves inputs where
511 the 'db' section contains nothing but zeroes (there is a one-byte
512 invalid read after the end of 'db').
513 [Ivan Nestlerode <inestlerode@us.ibm.com>]
515 *) Partial backport from 0.9.9-dev:
517 Introduce bn_mul_mont (dedicated Montgomery multiplication
518 procedure) as a candidate for BIGNUM assembler implementation.
519 While 0.9.9-dev uses assembler for various architectures, only
520 x86_64 is available by default here in the 0.9.8 branch, and
521 32-bit x86 is available through a compile-time setting.
523 To try the 32-bit x86 assembler implementation, use Configure
524 option "enable-montasm" (which exists only for this backport).
526 As "enable-montasm" for 32-bit x86 disclaims code stability
527 anyway, in this constellation we activate additional code
528 backported from 0.9.9-dev for further performance improvements,
529 namely BN_from_montgomery_word. (To enable this otherwise,
530 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
532 [Andy Polyakov (backport partially by Bodo Moeller)]
534 *) Add TLS session ticket callback. This allows an application to set
535 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
536 values. This is useful for key rollover for example where several key
537 sets may exist with different names.
540 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
541 This was broken until now in 0.9.8 releases, such that the only way
542 a registered ENGINE could be used (assuming it initialises
543 successfully on the host) was to explicitly set it as the default
544 for the relevant algorithms. This is in contradiction with 0.9.7
545 behaviour and the documentation. With this fix, when an ENGINE is
546 registered into a given algorithm's table of implementations, the
547 'uptodate' flag is reset so that auto-discovery will be used next
548 time a new context for that algorithm attempts to select an
550 [Ian Lister (tweaked by Geoff Thorpe)]
552 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
553 implemention in the following ways:
555 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
558 Lack of BER streaming support means one pass streaming processing is
559 only supported if data is detached: setting the streaming flag is
560 ignored for embedded content.
562 CMS support is disabled by default and must be explicitly enabled
563 with the enable-cms configuration option.
566 *) Update the GMP engine glue to do direct copies between BIGNUM and
567 mpz_t when openssl and GMP use the same limb size. Otherwise the
568 existing "conversion via a text string export" trick is still used.
569 [Paul Sheer <paulsheer@gmail.com>]
571 *) Zlib compression BIO. This is a filter BIO which compressed and
572 uncompresses any data passed through it.
575 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
576 RFC3394 compatible AES key wrapping.
579 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
580 sets string data without copying. X509_ALGOR_set0() and
581 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
582 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
583 from an X509_ATTRIBUTE structure optionally checking it occurs only
584 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
588 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
589 to get the expected BN_FLG_CONSTTIME behavior.
590 [Bodo Moeller (Google)]
594 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
595 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
596 - added some more tests to do_tests.pl
597 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
598 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
599 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
600 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
601 - various changes to netware.pl to enable gcc-cross builds on Win32
603 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
604 - various changes to fix missing prototype warnings
605 - fixed x86nasm.pl to create correct asm files for NASM COFF output
606 - added AES, WHIRLPOOL and CPUID assembler code to build files
607 - added missing AES assembler make rules to mk1mf.pl
608 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
609 [Guenter Knauf <eflash@gmx.net>]
611 *) Implement certificate status request TLS extension defined in RFC3546.
612 A client can set the appropriate parameters and receive the encoded
613 OCSP response via a callback. A server can query the supplied parameters
614 and set the encoded OCSP response in the callback. Add simplified examples
615 to s_client and s_server.
618 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
621 + Binary incompatibility of ssl_ctx_st structure
622 + DTLS interoperation with non-compliant servers
623 + Don't call get_session_cb() without proposed session
624 + Fix ia64 assembler code
625 [Andy Polyakov, Steve Henson]
627 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
629 *) DTLS Handshake overhaul. There were longstanding issues with
630 OpenSSL DTLS implementation, which were making it impossible for
631 RFC 4347 compliant client to communicate with OpenSSL server.
632 Unfortunately just fixing these incompatibilities would "cut off"
633 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
634 server keeps tolerating non RFC compliant syntax. The opposite is
635 not true, 0.9.8f client can not communicate with earlier server.
636 This update even addresses CVE-2007-4995.
639 *) Changes to avoid need for function casts in OpenSSL: some compilers
640 (gcc 4.2 and later) reject their use.
641 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
644 *) Add RFC4507 support to OpenSSL. This includes the corrections in
645 RFC4507bis. The encrypted ticket format is an encrypted encoded
646 SSL_SESSION structure, that way new session features are automatically
649 If a client application caches session in an SSL_SESSION structure
650 support is transparent because tickets are now stored in the encoded
653 The SSL_CTX structure automatically generates keys for ticket
654 protection in servers so again support should be possible
655 with no application modification.
657 If a client or server wishes to disable RFC4507 support then the option
658 SSL_OP_NO_TICKET can be set.
660 Add a TLS extension debugging callback to allow the contents of any client
661 or server extensions to be examined.
663 This work was sponsored by Google.
666 *) Add initial support for TLS extensions, specifically for the server_name
667 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
668 have new members for a host name. The SSL data structure has an
669 additional member SSL_CTX *initial_ctx so that new sessions can be
670 stored in that context to allow for session resumption, even after the
671 SSL has been switched to a new SSL_CTX in reaction to a client's
672 server_name extension.
674 New functions (subject to change):
677 SSL_get_servername_type()
680 New CTRL codes and macros (subject to change):
682 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
683 - SSL_CTX_set_tlsext_servername_callback()
684 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
685 - SSL_CTX_set_tlsext_servername_arg()
686 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
688 openssl s_client has a new '-servername ...' option.
690 openssl s_server has new options '-servername_host ...', '-cert2 ...',
691 '-key2 ...', '-servername_fatal' (subject to change). This allows
692 testing the HostName extension for a specific single host name ('-cert'
693 and '-key' remain fallbacks for handshakes without HostName
694 negotiation). If the unrecogninzed_name alert has to be sent, this by
695 default is a warning; it becomes fatal with the '-servername_fatal'
698 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
700 *) Add AES and SSE2 assembly language support to VC++ build.
703 *) Mitigate attack on final subtraction in Montgomery reduction.
706 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
707 (which previously caused an internal error).
710 *) Squeeze another 10% out of IGE mode when in != out.
713 *) AES IGE mode speedup.
714 [Dean Gaudet (Google)]
716 *) Add the Korean symmetric 128-bit cipher SEED (see
717 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
718 add SEED ciphersuites from RFC 4162:
720 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
721 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
722 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
723 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
725 To minimize changes between patchlevels in the OpenSSL 0.9.8
726 series, SEED remains excluded from compilation unless OpenSSL
727 is configured with 'enable-seed'.
730 *) Mitigate branch prediction attacks, which can be practical if a
731 single processor is shared, allowing a spy process to extract
732 information. For detailed background information, see
733 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
734 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
735 and Necessary Software Countermeasures"). The core of the change
736 are new versions BN_div_no_branch() and
737 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
738 respectively, which are slower, but avoid the security-relevant
739 conditional branches. These are automatically called by BN_div()
740 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
741 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
742 remove a conditional branch.
744 BN_FLG_CONSTTIME is the new name for the previous
745 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
746 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
747 in the exponent causes BN_mod_exp_mont() to use the alternative
748 implementation in BN_mod_exp_mont_consttime().) The old name
749 remains as a deprecated alias.
751 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
752 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
753 constant-time implementations for more than just exponentiation.
754 Here too the old name is kept as a deprecated alias.
756 BN_BLINDING_new() will now use BN_dup() for the modulus so that
757 the BN_BLINDING structure gets an independent copy of the
758 modulus. This means that the previous "BIGNUM *m" argument to
759 BN_BLINDING_new() and to BN_BLINDING_create_param() now
760 essentially becomes "const BIGNUM *m", although we can't actually
761 change this in the header file before 0.9.9. It allows
762 RSA_setup_blinding() to use BN_with_flags() on the modulus to
763 enable BN_FLG_CONSTTIME.
765 [Matthew D Wood (Intel Corp)]
767 *) In the SSL/TLS server implementation, be strict about session ID
768 context matching (which matters if an application uses a single
769 external cache for different purposes). Previously,
770 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
771 set. This did ensure strict client verification, but meant that,
772 with applications using a single external cache for quite
773 different requirements, clients could circumvent ciphersuite
774 restrictions for a given session ID context by starting a session
775 in a different context.
778 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
779 a ciphersuite string such as "DEFAULT:RSA" cannot enable
780 authentication-only ciphersuites.
783 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
784 not complete and could lead to a possible single byte overflow
785 (CVE-2007-5135) [Ben Laurie]
787 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
789 *) Since AES128 and AES256 (and similarly Camellia128 and
790 Camellia256) share a single mask bit in the logic of
791 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
792 kludge to work properly if AES128 is available and AES256 isn't
793 (or if Camellia128 is available and Camellia256 isn't).
796 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
797 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
798 When a point or a seed is encoded in a BIT STRING, we need to
799 prevent the removal of trailing zero bits to get the proper DER
800 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
801 of a NamedBitList, for which trailing 0 bits need to be removed.)
804 *) Have SSL/TLS server implementation tolerate "mismatched" record
805 protocol version while receiving ClientHello even if the
806 ClientHello is fragmented. (The server can't insist on the
807 particular protocol version it has chosen before the ServerHello
808 message has informed the client about his choice.)
811 *) Add RFC 3779 support.
812 [Rob Austein for ARIN, Ben Laurie]
814 *) Load error codes if they are not already present instead of using a
815 static variable. This allows them to be cleanly unloaded and reloaded.
816 Improve header file function name parsing.
819 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
820 or CAPABILITY handshake as required by RFCs.
823 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
825 *) Introduce limits to prevent malicious keys being able to
826 cause a denial of service. (CVE-2006-2940)
827 [Steve Henson, Bodo Moeller]
829 *) Fix ASN.1 parsing of certain invalid structures that can result
830 in a denial of service. (CVE-2006-2937) [Steve Henson]
832 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
833 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
835 *) Fix SSL client code which could crash if connecting to a
836 malicious SSLv2 server. (CVE-2006-4343)
837 [Tavis Ormandy and Will Drewry, Google Security Team]
839 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
840 match only those. Before that, "AES256-SHA" would be interpreted
841 as a pattern and match "AES128-SHA" too (since AES128-SHA got
842 the same strength classification in 0.9.7h) as we currently only
843 have a single AES bit in the ciphersuite description bitmap.
844 That change, however, also applied to ciphersuite strings such as
845 "RC4-MD5" that intentionally matched multiple ciphersuites --
846 namely, SSL 2.0 ciphersuites in addition to the more common ones
847 from SSL 3.0/TLS 1.0.
849 So we change the selection algorithm again: Naming an explicit
850 ciphersuite selects this one ciphersuite, and any other similar
851 ciphersuite (same bitmap) from *other* protocol versions.
852 Thus, "RC4-MD5" again will properly select both the SSL 2.0
853 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
855 Since SSL 2.0 does not have any ciphersuites for which the
856 128/256 bit distinction would be relevant, this works for now.
857 The proper fix will be to use different bits for AES128 and
858 AES256, which would have avoided the problems from the beginning;
859 however, bits are scarce, so we can only do this in a new release
860 (not just a patchlevel) when we can change the SSL_CIPHER
861 definition to split the single 'unsigned long mask' bitmap into
862 multiple values to extend the available space.
866 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
868 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
869 (CVE-2006-4339) [Ben Laurie and Google Security Team]
871 *) Add AES IGE and biIGE modes.
874 *) Change the Unix randomness entropy gathering to use poll() when
875 possible instead of select(), since the latter has some
876 undesirable limitations.
877 [Darryl Miles via Richard Levitte and Bodo Moeller]
879 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
880 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
881 cannot be implicitly activated as part of, e.g., the "AES" alias.
882 However, please upgrade to OpenSSL 0.9.9[-dev] for
883 non-experimental use of the ECC ciphersuites to get TLS extension
884 support, which is required for curve and point format negotiation
885 to avoid potential handshake problems.
888 *) Disable rogue ciphersuites:
890 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
891 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
892 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
894 The latter two were purportedly from
895 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
898 Also deactivate the remaining ciphersuites from
899 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
900 unofficial, and the ID has long expired.
903 *) Fix RSA blinding Heisenbug (problems sometimes occured on
904 dual-core machines) and other potential thread-safety issues.
907 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
908 versions), which is now available for royalty-free use
909 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
910 Also, add Camellia TLS ciphersuites from RFC 4132.
912 To minimize changes between patchlevels in the OpenSSL 0.9.8
913 series, Camellia remains excluded from compilation unless OpenSSL
914 is configured with 'enable-camellia'.
917 *) Disable the padding bug check when compression is in use. The padding
918 bug check assumes the first packet is of even length, this is not
919 necessarily true if compresssion is enabled and can result in false
920 positives causing handshake failure. The actual bug test is ancient
921 code so it is hoped that implementations will either have fixed it by
922 now or any which still have the bug do not support compression.
925 Changes between 0.9.8a and 0.9.8b [04 May 2006]
927 *) When applying a cipher rule check to see if string match is an explicit
928 cipher suite and only match that one cipher suite if it is.
931 *) Link in manifests for VC++ if needed.
932 [Austin Ziegler <halostatue@gmail.com>]
934 *) Update support for ECC-based TLS ciphersuites according to
935 draft-ietf-tls-ecc-12.txt with proposed changes (but without
936 TLS extensions, which are supported starting with the 0.9.9
937 branch, not in the OpenSSL 0.9.8 branch).
940 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
941 opaque EVP_CIPHER_CTX handling.
944 *) Fixes and enhancements to zlib compression code. We now only use
945 "zlib1.dll" and use the default __cdecl calling convention on Win32
946 to conform with the standards mentioned here:
947 http://www.zlib.net/DLL_FAQ.txt
948 Static zlib linking now works on Windows and the new --with-zlib-include
949 --with-zlib-lib options to Configure can be used to supply the location
950 of the headers and library. Gracefully handle case where zlib library
954 *) Several fixes and enhancements to the OID generation code. The old code
955 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
956 handle numbers larger than ULONG_MAX, truncated printing and had a
957 non standard OBJ_obj2txt() behaviour.
960 *) Add support for building of engines under engine/ as shared libraries
961 under VC++ build system.
964 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
965 Hopefully, we will not see any false combination of paths any more.
968 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
970 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
971 (part of SSL_OP_ALL). This option used to disable the
972 countermeasure against man-in-the-middle protocol-version
973 rollback in the SSL 2.0 server implementation, which is a bad
974 idea. (CVE-2005-2969)
976 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
977 for Information Security, National Institute of Advanced Industrial
978 Science and Technology [AIST], Japan)]
980 *) Add two function to clear and return the verify parameter flags.
983 *) Keep cipherlists sorted in the source instead of sorting them at
984 runtime, thus removing the need for a lock.
987 *) Avoid some small subgroup attacks in Diffie-Hellman.
988 [Nick Mathewson and Ben Laurie]
990 *) Add functions for well-known primes.
993 *) Extended Windows CE support.
994 [Satoshi Nakamura and Andy Polyakov]
996 *) Initialize SSL_METHOD structures at compile time instead of during
997 runtime, thus removing the need for a lock.
1000 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1001 attempting to decrypt each encrypted key in turn. Add support to
1005 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1007 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1010 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1013 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1014 key into the same file any more.
1017 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1020 *) Add -utf8 command line and config file option to 'ca'.
1021 [Stefan <stf@udoma.org]
1023 *) Removed the macro des_crypt(), as it seems to conflict with some
1024 libraries. Use DES_crypt().
1027 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1028 involves renaming the source and generated shared-libs for
1029 both. The engines will accept the corrected or legacy ids
1030 ('ncipher' and '4758_cca' respectively) when binding. NB,
1031 this only applies when building 'shared'.
1032 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1034 *) Add attribute functions to EVP_PKEY structure. Modify
1035 PKCS12_create() to recognize a CSP name attribute and
1036 use it. Make -CSP option work again in pkcs12 utility.
1039 *) Add new functionality to the bn blinding code:
1040 - automatic re-creation of the BN_BLINDING parameters after
1041 a fixed number of uses (currently 32)
1042 - add new function for parameter creation
1043 - introduce flags to control the update behaviour of the
1044 BN_BLINDING parameters
1045 - hide BN_BLINDING structure
1046 Add a second BN_BLINDING slot to the RSA structure to improve
1047 performance when a single RSA object is shared among several
1051 *) Add support for DTLS.
1052 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1054 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1055 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1058 *) Remove buggy and incompletet DH cert support from
1059 ssl/ssl_rsa.c and ssl/s3_both.c
1062 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1063 the apps/openssl applications.
1066 *) Compile clean with "-Wall -Wmissing-prototypes
1067 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1068 DEBUG_SAFESTACK must also be set.
1071 *) Change ./Configure so that certain algorithms can be disabled by default.
1072 The new counterpiece to "no-xxx" is "enable-xxx".
1074 The patented RC5 and MDC2 algorithms will now be disabled unless
1075 "enable-rc5" and "enable-mdc2", respectively, are specified.
1077 (IDEA remains enabled despite being patented. This is because IDEA
1078 is frequently required for interoperability, and there is no license
1079 fee for non-commercial use. As before, "no-idea" can be used to
1080 avoid this algorithm.)
1084 *) Add processing of proxy certificates (see RFC 3820). This work was
1085 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1086 EGEE (Enabling Grids for E-science in Europe).
1089 *) RC4 performance overhaul on modern architectures/implementations, such
1090 as Intel P4, IA-64 and AMD64.
1093 *) New utility extract-section.pl. This can be used specify an alternative
1094 section number in a pod file instead of having to treat each file as
1095 a separate case in Makefile. This can be done by adding two lines to the
1098 =for comment openssl_section:XXX
1100 The blank line is mandatory.
1104 *) New arguments -certform, -keyform and -pass for s_client and s_server
1105 to allow alternative format key and certificate files and passphrase
1109 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1110 update associated structures and add various utility functions.
1112 Add new policy related verify parameters, include policy checking in
1113 standard verify code. Enhance 'smime' application with extra parameters
1114 to support policy checking and print out.
1117 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1118 Nehemiah processors. These extensions support AES encryption in hardware
1119 as well as RNG (though RNG support is currently disabled).
1120 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1122 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1125 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1126 [Andy Polyakov and a number of other people]
1128 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1129 implementation contributed by IBM.
1130 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1132 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1133 exponent rather than 'unsigned long'. There is a corresponding change to
1134 the new 'rsa_keygen' element of the RSA_METHOD structure.
1135 [Jelte Jansen, Geoff Thorpe]
1137 *) Functionality for creating the initial serial number file is now
1138 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1140 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1141 number file to 1, which is bound to cause problems. To avoid
1142 the problems while respecting compatibility between different 0.9.7
1143 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1144 CA.pl for serial number initialization. With the new release 0.9.8,
1145 we can fix the problem directly in the 'ca' utility.)
1148 *) Reduced header interdepencies by declaring more opaque objects in
1149 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1150 give fewer recursive includes, which could break lazy source code - so
1151 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1152 developers should define this symbol when building and using openssl to
1153 ensure they track the recommended behaviour, interfaces, [etc], but
1154 backwards-compatible behaviour prevails when this isn't defined.
1157 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1160 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1161 This will generate a random key of the appropriate length based on the
1162 cipher context. The EVP_CIPHER can provide its own random key generation
1163 routine to support keys of a specific form. This is used in the des and
1164 3des routines to generate a key of the correct parity. Update S/MIME
1165 code to use new functions and hence generate correct parity DES keys.
1166 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1167 valid (weak or incorrect parity).
1170 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1171 as looking them up. This is useful when the verified structure may contain
1172 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1173 present unless the new PKCS7_NO_CRL flag is asserted.
1176 *) Extend ASN1 oid configuration module. It now additionally accepts the
1179 shortName = some long name, 1.2.3.4
1182 *) Reimplemented the BN_CTX implementation. There is now no more static
1183 limitation on the number of variables it can handle nor the depth of the
1184 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1185 information can now expand as required, and rather than having a single
1186 static array of bignums, BN_CTX now uses a linked-list of such arrays
1187 allowing it to expand on demand whilst maintaining the usefulness of
1188 BN_CTX's "bundling".
1191 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1192 to allow all RSA operations to function using a single BN_CTX.
1195 *) Preliminary support for certificate policy evaluation and checking. This
1196 is initially intended to pass the tests outlined in "Conformance Testing
1197 of Relying Party Client Certificate Path Processing Logic" v1.07.
1200 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1201 remained unused and not that useful. A variety of other little bignum
1202 tweaks and fixes have also been made continuing on from the audit (see
1206 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1207 associated ASN1, EVP and SSL functions and old ASN1 macros.
1210 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1211 and this should never fail. So the return value from the use of
1212 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1213 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1216 *) BN_CTX_get() should return zero-valued bignums, providing the same
1217 initialised value as BN_new().
1218 [Geoff Thorpe, suggested by Ulf Möller]
1220 *) Support for inhibitAnyPolicy certificate extension.
1223 *) An audit of the BIGNUM code is underway, for which debugging code is
1224 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1225 is considered valid when processing BIGNUMs, and causes execution to
1226 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1227 further steps are taken to deliberately pollute unused data in BIGNUM
1228 structures to try and expose faulty code further on. For now, openssl will
1229 (in its default mode of operation) continue to tolerate the inconsistent
1230 forms that it has tolerated in the past, but authors and packagers should
1231 consider trying openssl and their own applications when compiled with
1232 these debugging symbols defined. It will help highlight potential bugs in
1233 their own code, and will improve the test coverage for OpenSSL itself. At
1234 some point, these tighter rules will become openssl's default to improve
1235 maintainability, though the assert()s and other overheads will remain only
1236 in debugging configurations. See bn.h for more details.
1237 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1239 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1240 that can only be obtained through BN_CTX_new() (which implicitly
1241 initialises it). The presence of this function only made it possible
1242 to overwrite an existing structure (and cause memory leaks).
1245 *) Because of the callback-based approach for implementing LHASH as a
1246 template type, lh_insert() adds opaque objects to hash-tables and
1247 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1248 to clean up those corresponding objects before destroying the hash table
1249 (and losing the object pointers). So some over-zealous constifications in
1250 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1251 objects as "const" and the lh_doall[_arg] callback wrappers are not
1252 prototyped to have "const" restrictions on the object pointers they are
1253 given (and so aren't required to cast them away any more).
1256 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1257 (speed) prefers to use its own implementation. The two implementations
1258 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1259 its object type properly exposed (MS_TM) instead of casting to/from "char
1260 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1261 aren't necessarily the greatest nomenclatures - but this is what was used
1262 internally to the implementation so I've used that for now.
1265 *) Ensure that deprecated functions do not get compiled when
1266 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1267 the self-tests were still using deprecated key-generation functions so
1268 these have been updated also.
1271 *) Reorganise PKCS#7 code to separate the digest location functionality
1272 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1273 New function PKCS7_set_digest() to set the digest type for PKCS#7
1274 digestedData type. Add additional code to correctly generate the
1275 digestedData type and add support for this type in PKCS7 initialization
1279 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1280 structure of type "other".
1283 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1284 sure the loop does correctly stop and breaking ("division by zero")
1285 modulus operations are not performed. The (pre-generated) prime
1286 table crypto/bn/bn_prime.h was already correct, but it could not be
1287 re-generated on some platforms because of the "division by zero"
1288 situation in the script.
1289 [Ralf S. Engelschall]
1291 *) Update support for ECC-based TLS ciphersuites according to
1292 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1293 SHA-1 now is only used for "small" curves (where the
1294 representation of a field element takes up to 24 bytes); for
1295 larger curves, the field element resulting from ECDH is directly
1296 used as premaster secret.
1297 [Douglas Stebila (Sun Microsystems Laboratories)]
1299 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1300 curve secp160r1 to the tests.
1301 [Douglas Stebila (Sun Microsystems Laboratories)]
1303 *) Add the possibility to load symbols globally with DSO.
1304 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1306 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1307 control of the error stack.
1310 *) Add support for STORE in ENGINE.
1313 *) Add the STORE type. The intention is to provide a common interface
1314 to certificate and key stores, be they simple file-based stores, or
1315 HSM-type store, or LDAP stores, or...
1316 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1319 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1320 pass a list of arguments to any function as well as provide a way
1321 for a function to pass data back to the caller.
1324 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1325 works like BUF_strdup() but can be used to duplicate a portion of
1326 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1330 *) Add the function sk_find_ex() which works like sk_find(), but will
1331 return an index to an element even if an exact match couldn't be
1332 found. The index is guaranteed to point at the element where the
1333 searched-for key would be inserted to preserve sorting order.
1336 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1337 takes an extra flags argument for optional functionality. Currently,
1338 the following flags are defined:
1340 OBJ_BSEARCH_VALUE_ON_NOMATCH
1341 This one gets OBJ_bsearch_ex() to return a pointer to the first
1342 element where the comparing function returns a negative or zero
1345 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1346 This one gets OBJ_bsearch_ex() to return a pointer to the first
1347 element where the comparing function returns zero. This is useful
1348 if there are more than one element where the comparing function
1352 *) Make it possible to create self-signed certificates with 'openssl ca'
1353 in such a way that the self-signed certificate becomes part of the
1354 CA database and uses the same mechanisms for serial number generation
1355 as all other certificate signing. The new flag '-selfsign' enables
1356 this functionality. Adapt CA.sh and CA.pl.in.
1359 *) Add functionality to check the public key of a certificate request
1360 against a given private. This is useful to check that a certificate
1361 request can be signed by that key (self-signing).
1364 *) Make it possible to have multiple active certificates with the same
1365 subject in the CA index file. This is done only if the keyword
1366 'unique_subject' is set to 'no' in the main CA section (default
1367 if 'CA_default') of the configuration file. The value is saved
1368 with the database itself in a separate index attribute file,
1369 named like the index file with '.attr' appended to the name.
1372 *) Generate muti valued AVAs using '+' notation in config files for
1376 *) Support for nameConstraints certificate extension.
1379 *) Support for policyConstraints certificate extension.
1382 *) Support for policyMappings certificate extension.
1385 *) Make sure the default DSA_METHOD implementation only uses its
1386 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1387 and change its own handlers to be NULL so as to remove unnecessary
1388 indirection. This lets alternative implementations fallback to the
1389 default implementation more easily.
1392 *) Support for directoryName in GeneralName related extensions
1396 *) Make it possible to link applications using Makefile.shared.
1397 Make that possible even when linking against static libraries!
1400 *) Support for single pass processing for S/MIME signing. This now
1401 means that S/MIME signing can be done from a pipe, in addition
1402 cleartext signing (multipart/signed type) is effectively streaming
1403 and the signed data does not need to be all held in memory.
1405 This is done with a new flag PKCS7_STREAM. When this flag is set
1406 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1407 is done after the data is output (and digests calculated) in
1408 SMIME_write_PKCS7().
1411 *) Add full support for -rpath/-R, both in shared libraries and
1412 applications, at least on the platforms where it's known how
1416 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1417 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1418 will now compute a table of multiples of the generator that
1419 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1420 faster (notably in the case of a single point multiplication,
1421 scalar * generator).
1422 [Nils Larsch, Bodo Moeller]
1424 *) IPv6 support for certificate extensions. The various extensions
1425 which use the IP:a.b.c.d can now take IPv6 addresses using the
1426 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1430 *) Added an ENGINE that implements RSA by performing private key
1431 exponentiations with the GMP library. The conversions to and from
1432 GMP's mpz_t format aren't optimised nor are any montgomery forms
1433 cached, and on x86 it appears OpenSSL's own performance has caught up.
1434 However there are likely to be other architectures where GMP could
1435 provide a boost. This ENGINE is not built in by default, but it can be
1436 specified at Configure time and should be accompanied by the necessary
1437 linker additions, eg;
1438 ./config -DOPENSSL_USE_GMP -lgmp
1441 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1442 testing availability of engines with "-t" - the old behaviour is
1443 produced by increasing the feature's verbosity with "-tt".
1446 *) ECDSA routines: under certain error conditions uninitialized BN objects
1447 could be freed. Solution: make sure initialization is performed early
1448 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1452 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1453 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1454 software implementations. For DSA and DH, parameter generation can
1455 also be overriden by providing the appropriate method callbacks.
1458 *) Change the "progress" mechanism used in key-generation and
1459 primality testing to functions that take a new BN_GENCB pointer in
1460 place of callback/argument pairs. The new API functions have "_ex"
1461 postfixes and the older functions are reimplemented as wrappers for
1462 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1463 declarations of the old functions to help (graceful) attempts to
1464 migrate to the new functions. Also, the new key-generation API
1465 functions operate on a caller-supplied key-structure and return
1466 success/failure rather than returning a key or NULL - this is to
1467 help make "keygen" another member function of RSA_METHOD etc.
1469 Example for using the new callback interface:
1471 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1475 BN_GENCB_set(&my_cb, my_callback, my_arg);
1477 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1478 /* For the meaning of a, b in calls to my_callback(), see the
1479 * documentation of the function that calls the callback.
1480 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1481 * my_callback should return 1 if it wants BN_is_prime_ex()
1482 * to continue, or 0 to stop.
1487 *) Change the ZLIB compression method to be stateful, and make it
1488 available to TLS with the number defined in
1489 draft-ietf-tls-compression-04.txt.
1492 *) Add the ASN.1 structures and functions for CertificatePair, which
1493 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1495 CertificatePair ::= SEQUENCE {
1496 forward [0] Certificate OPTIONAL,
1497 reverse [1] Certificate OPTIONAL,
1498 -- at least one of the pair shall be present -- }
1500 Also implement the PEM functions to read and write certificate
1501 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1503 This needed to be defined, mostly for the sake of the LDAP
1504 attribute crossCertificatePair, but may prove useful elsewhere as
1508 *) Make it possible to inhibit symlinking of shared libraries in
1509 Makefile.shared, for Cygwin's sake.
1512 *) Extend the BIGNUM API by creating a function
1513 void BN_set_negative(BIGNUM *a, int neg);
1514 and a macro that behave like
1515 int BN_is_negative(const BIGNUM *a);
1517 to avoid the need to access 'a->neg' directly in applications.
1520 *) Implement fast modular reduction for pseudo-Mersenne primes
1521 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1522 EC_GROUP_new_curve_GFp() will now automatically use this
1524 [Nils Larsch <nla@trustcenter.de>]
1526 *) Add new lock type (CRYPTO_LOCK_BN).
1529 *) Change the ENGINE framework to automatically load engines
1530 dynamically from specific directories unless they could be
1531 found to already be built in or loaded. Move all the
1532 current engines except for the cryptodev one to a new
1534 The engines in engines/ are built as shared libraries if
1535 the "shared" options was given to ./Configure or ./config.
1536 Otherwise, they are inserted in libcrypto.a.
1537 /usr/local/ssl/engines is the default directory for dynamic
1538 engines, but that can be overriden at configure time through
1539 the usual use of --prefix and/or --openssldir, and at run
1540 time with the environment variable OPENSSL_ENGINES.
1541 [Geoff Thorpe and Richard Levitte]
1543 *) Add Makefile.shared, a helper makefile to build shared
1544 libraries. Addapt Makefile.org.
1547 *) Add version info to Win32 DLLs.
1548 [Peter 'Luna' Runestig" <peter@runestig.com>]
1550 *) Add new 'medium level' PKCS#12 API. Certificates and keys
1551 can be added using this API to created arbitrary PKCS#12
1552 files while avoiding the low level API.
1554 New options to PKCS12_create(), key or cert can be NULL and
1555 will then be omitted from the output file. The encryption
1556 algorithm NIDs can be set to -1 for no encryption, the mac
1557 iteration count can be set to 0 to omit the mac.
1559 Enhance pkcs12 utility by making the -nokeys and -nocerts
1560 options work when creating a PKCS#12 file. New option -nomac
1561 to omit the mac, NONE can be set for an encryption algorithm.
1562 New code is modified to use the enhanced PKCS12_create()
1563 instead of the low level API.
1566 *) Extend ASN1 encoder to support indefinite length constructed
1567 encoding. This can output sequences tags and octet strings in
1568 this form. Modify pk7_asn1.c to support indefinite length
1569 encoding. This is experimental and needs additional code to
1570 be useful, such as an ASN1 bio and some enhanced streaming
1573 Extend template encode functionality so that tagging is passed
1574 down to the template encoder.
1577 *) Let 'openssl req' fail if an argument to '-newkey' is not
1578 recognized instead of using RSA as a default.
1581 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1582 As these are not official, they are not included in "ALL";
1583 the "ECCdraft" ciphersuite group alias can be used to select them.
1584 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1586 *) Add ECDH engine support.
1587 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1589 *) Add ECDH in new directory crypto/ecdh/.
1590 [Douglas Stebila (Sun Microsystems Laboratories)]
1592 *) Let BN_rand_range() abort with an error after 100 iterations
1593 without success (which indicates a broken PRNG).
1596 *) Change BN_mod_sqrt() so that it verifies that the input value
1597 is really the square of the return value. (Previously,
1598 BN_mod_sqrt would show GIGO behaviour.)
1601 *) Add named elliptic curves over binary fields from X9.62, SECG,
1602 and WAP/WTLS; add OIDs that were still missing.
1604 [Sheueling Chang Shantz and Douglas Stebila
1605 (Sun Microsystems Laboratories)]
1607 *) Extend the EC library for elliptic curves over binary fields
1608 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1611 EC_GF2m_simple_method
1615 EC_GROUP_new_curve_GF2m
1616 EC_GROUP_set_curve_GF2m
1617 EC_GROUP_get_curve_GF2m
1618 EC_POINT_set_affine_coordinates_GF2m
1619 EC_POINT_get_affine_coordinates_GF2m
1620 EC_POINT_set_compressed_coordinates_GF2m
1622 Point compression for binary fields is disabled by default for
1623 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1626 As binary polynomials are represented as BIGNUMs, various members
1627 of the EC_GROUP and EC_POINT data structures can be shared
1628 between the implementations for prime fields and binary fields;
1629 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1630 are essentially identical to their ..._GFp counterparts.
1631 (For simplicity, the '..._GFp' prefix has been dropped from
1632 various internal method names.)
1634 An internal 'field_div' method (similar to 'field_mul' and
1635 'field_sqr') has been added; this is used only for binary fields.
1637 [Sheueling Chang Shantz and Douglas Stebila
1638 (Sun Microsystems Laboratories)]
1640 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1641 through methods ('mul', 'precompute_mult').
1643 The generic implementations (now internally called 'ec_wNAF_mul'
1644 and 'ec_wNAF_precomputed_mult') remain the default if these
1645 methods are undefined.
1647 [Sheueling Chang Shantz and Douglas Stebila
1648 (Sun Microsystems Laboratories)]
1650 *) New function EC_GROUP_get_degree, which is defined through
1651 EC_METHOD. For curves over prime fields, this returns the bit
1652 length of the modulus.
1654 [Sheueling Chang Shantz and Douglas Stebila
1655 (Sun Microsystems Laboratories)]
1657 *) New functions EC_GROUP_dup, EC_POINT_dup.
1658 (These simply call ..._new and ..._copy).
1660 [Sheueling Chang Shantz and Douglas Stebila
1661 (Sun Microsystems Laboratories)]
1663 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1664 Polynomials are represented as BIGNUMs (where the sign bit is not
1665 used) in the following functions [macros]:
1668 BN_GF2m_sub [= BN_GF2m_add]
1669 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1670 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1671 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1673 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1674 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1675 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1676 BN_GF2m_cmp [= BN_ucmp]
1678 (Note that only the 'mod' functions are actually for fields GF(2^m).
1679 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1681 For some functions, an the irreducible polynomial defining a
1682 field can be given as an 'unsigned int[]' with strictly
1683 decreasing elements giving the indices of those bits that are set;
1684 i.e., p[] represents the polynomial
1685 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1687 p[0] > p[1] > ... > p[k] = 0.
1688 This applies to the following functions:
1693 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1694 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1696 BN_GF2m_mod_sqrt_arr
1697 BN_GF2m_mod_solve_quad_arr
1701 Conversion can be performed by the following functions:
1706 bntest.c has additional tests for binary polynomial arithmetic.
1708 Two implementations for BN_GF2m_mod_div() are available.
1709 The default algorithm simply uses BN_GF2m_mod_inv() and
1710 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1711 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1712 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1714 [Sheueling Chang Shantz and Douglas Stebila
1715 (Sun Microsystems Laboratories)]
1717 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1718 functionality is disabled at compile-time.
1719 [Douglas Stebila <douglas.stebila@sun.com>]
1721 *) Change default behaviour of 'openssl asn1parse' so that more
1722 information is visible when viewing, e.g., a certificate:
1724 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1725 mode the content of non-printable OCTET STRINGs is output in a
1726 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1727 avoid the appearance of a printable string.
1728 [Nils Larsch <nla@trustcenter.de>]
1730 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1732 EC_GROUP_set_asn1_flag()
1733 EC_GROUP_get_asn1_flag()
1734 EC_GROUP_set_point_conversion_form()
1735 EC_GROUP_get_point_conversion_form()
1736 These control ASN1 encoding details:
1737 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1738 has been set to OPENSSL_EC_NAMED_CURVE.
1739 - Points are encoded in uncompressed form by default; options for
1740 asn1_for are as for point2oct, namely
1741 POINT_CONVERSION_COMPRESSED
1742 POINT_CONVERSION_UNCOMPRESSED
1743 POINT_CONVERSION_HYBRID
1745 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1748 EC_GROUP_get0_seed()
1749 EC_GROUP_get_seed_len()
1750 This is used only for ASN1 purposes (so far).
1751 [Nils Larsch <nla@trustcenter.de>]
1753 *) Add 'field_type' member to EC_METHOD, which holds the NID
1754 of the appropriate field type OID. The new function
1755 EC_METHOD_get_field_type() returns this value.
1756 [Nils Larsch <nla@trustcenter.de>]
1761 EC_POINT_point2hex()
1762 EC_POINT_hex2point()
1763 providing useful interfaces to EC_POINT_point2oct() and
1764 EC_POINT_oct2point().
1765 [Nils Larsch <nla@trustcenter.de>]
1767 *) Change internals of the EC library so that the functions
1768 EC_GROUP_set_generator()
1769 EC_GROUP_get_generator()
1770 EC_GROUP_get_order()
1771 EC_GROUP_get_cofactor()
1772 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1773 to methods, which would lead to unnecessary code duplication when
1774 adding different types of curves.
1775 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1777 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1778 arithmetic, and such that modified wNAFs are generated
1779 (which avoid length expansion in many cases).
1782 *) Add a function EC_GROUP_check_discriminant() (defined via
1783 EC_METHOD) that verifies that the curve discriminant is non-zero.
1785 Add a function EC_GROUP_check() that makes some sanity tests
1786 on a EC_GROUP, its generator and order. This includes
1787 EC_GROUP_check_discriminant().
1788 [Nils Larsch <nla@trustcenter.de>]
1790 *) Add ECDSA in new directory crypto/ecdsa/.
1792 Add applications 'openssl ecparam' and 'openssl ecdsa'
1793 (these are based on 'openssl dsaparam' and 'openssl dsa').
1795 ECDSA support is also included in various other files across the
1796 library. Most notably,
1797 - 'openssl req' now has a '-newkey ecdsa:file' option;
1798 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1799 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1800 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1801 them suitable for ECDSA where domain parameters must be
1802 extracted before the specific public key;
1803 - ECDSA engine support has been added.
1804 [Nils Larsch <nla@trustcenter.de>]
1806 *) Include some named elliptic curves, and add OIDs from X9.62,
1807 SECG, and WAP/WTLS. Each curve can be obtained from the new
1809 EC_GROUP_new_by_curve_name(),
1810 and the list of available named curves can be obtained with
1811 EC_get_builtin_curves().
1812 Also add a 'curve_name' member to EC_GROUP objects, which can be
1814 EC_GROUP_set_curve_name()
1815 EC_GROUP_get_curve_name()
1816 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1818 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1819 was actually never needed) and in BN_mul(). The removal in BN_mul()
1820 required a small change in bn_mul_part_recursive() and the addition
1821 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1822 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1823 bn_sub_words() and bn_add_words() except they take arrays with
1827 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
1829 *) Cleanse PEM buffers before freeing them since they may contain
1831 [Benjamin Bennett <ben@psc.edu>]
1833 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1834 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1835 authentication-only ciphersuites.
1838 *) Since AES128 and AES256 share a single mask bit in the logic of
1839 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1840 kludge to work properly if AES128 is available and AES256 isn't.
1843 *) Expand security boundary to match 1.1.1 module.
1846 *) Remove redundant features: hash file source, editing of test vectors
1847 modify fipsld to use external fips_premain.c signature.
1850 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
1851 run algorithm test programs.
1854 *) Make algorithm test programs more tolerant of whitespace.
1857 *) Have SSL/TLS server implementation tolerate "mismatched" record
1858 protocol version while receiving ClientHello even if the
1859 ClientHello is fragmented. (The server can't insist on the
1860 particular protocol version it has chosen before the ServerHello
1861 message has informed the client about his choice.)
1864 *) Load error codes if they are not already present instead of using a
1865 static variable. This allows them to be cleanly unloaded and reloaded.
1868 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
1870 *) Introduce limits to prevent malicious keys being able to
1871 cause a denial of service. (CVE-2006-2940)
1872 [Steve Henson, Bodo Moeller]
1874 *) Fix ASN.1 parsing of certain invalid structures that can result
1875 in a denial of service. (CVE-2006-2937) [Steve Henson]
1877 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1878 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1880 *) Fix SSL client code which could crash if connecting to a
1881 malicious SSLv2 server. (CVE-2006-4343)
1882 [Tavis Ormandy and Will Drewry, Google Security Team]
1884 *) Change ciphersuite string processing so that an explicit
1885 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
1886 will no longer include "AES128-SHA"), and any other similar
1887 ciphersuite (same bitmap) from *other* protocol versions (so that
1888 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
1889 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
1890 changes from 0.9.8b and 0.9.8d.
1893 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
1895 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1896 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1898 *) Change the Unix randomness entropy gathering to use poll() when
1899 possible instead of select(), since the latter has some
1900 undesirable limitations.
1901 [Darryl Miles via Richard Levitte and Bodo Moeller]
1903 *) Disable rogue ciphersuites:
1905 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1906 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1907 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1909 The latter two were purportedly from
1910 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1913 Also deactive the remaining ciphersuites from
1914 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1915 unofficial, and the ID has long expired.
1918 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1919 dual-core machines) and other potential thread-safety issues.
1922 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1924 *) Adapt fipsld and the build system to link against the validated FIPS
1925 module in FIPS mode.
1928 *) Fixes for VC++ 2005 build under Windows.
1931 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1932 from a Windows bash shell such as MSYS. It is autodetected from the
1933 "config" script when run from a VC++ environment. Modify standard VC++
1934 build to use fipscanister.o from the GNU make build.
1937 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1939 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1940 The value now differs depending on if you build for FIPS or not.
1941 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1942 safely run with a non-FIPSed libcrypto, as it may crash because of
1943 the difference induced by this change.
1946 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1948 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1949 (part of SSL_OP_ALL). This option used to disable the
1950 countermeasure against man-in-the-middle protocol-version
1951 rollback in the SSL 2.0 server implementation, which is a bad
1952 idea. (CVE-2005-2969)
1954 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1955 for Information Security, National Institute of Advanced Industrial
1956 Science and Technology [AIST], Japan)]
1958 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1959 mainly for FIPS compliance and not fully integrated at this stage.
1962 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1963 the exponentiation using a fixed-length exponent. (Otherwise,
1964 the information leaked through timing could expose the secret key
1965 after many signatures; cf. Bleichenbacher's attack on DSA with
1969 *) Make a new fixed-window mod_exp implementation the default for
1970 RSA, DSA, and DH private-key operations so that the sequence of
1971 squares and multiplies and the memory access pattern are
1972 independent of the particular secret key. This will mitigate
1973 cache-timing and potential related attacks.
1975 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1976 and this is automatically used by BN_mod_exp_mont() if the new flag
1977 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1978 will use this BN flag for private exponents unless the flag
1979 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1980 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1982 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1984 *) Change the client implementation for SSLv23_method() and
1985 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1986 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1987 (Previously, the SSL 2.0 backwards compatible Client Hello
1988 message format would be used even with SSL_OP_NO_SSLv2.)
1991 *) Add support for smime-type MIME parameter in S/MIME messages which some
1995 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1996 a threadsafe manner. Modify rsa code to use new function and add calls
1997 to dsa and dh code (which had race conditions before).
2000 *) Include the fixed error library code in the C error file definitions
2001 instead of fixing them up at runtime. This keeps the error code
2002 structures constant.
2005 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2007 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2010 *) Fixes for newer kerberos headers. NB: the casts are needed because
2011 the 'length' field is signed on one version and unsigned on another
2012 with no (?) obvious way to tell the difference, without these VC++
2013 complains. Also the "definition" of FAR (blank) is no longer included
2014 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2015 some needed definitions.
2018 *) Undo Cygwin change.
2021 *) Added support for proxy certificates according to RFC 3820.
2022 Because they may be a security thread to unaware applications,
2023 they must be explicitely allowed in run-time. See
2024 docs/HOWTO/proxy_certificates.txt for further information.
2027 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2029 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2030 server and client random values. Previously
2031 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2032 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2034 This change has negligible security impact because:
2036 1. Server and client random values still have 24 bytes of pseudo random
2039 2. Server and client random values are sent in the clear in the initial
2042 3. The master secret is derived using the premaster secret (48 bytes in
2043 size for static RSA ciphersuites) as well as client server and random
2046 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2049 [Stephen Henson, reported by UK NISCC]
2051 *) Use Windows randomness collection on Cygwin.
2054 *) Fix hang in EGD/PRNGD query when communication socket is closed
2055 prematurely by EGD/PRNGD.
2056 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2058 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2061 *) Back-port of selected performance improvements from development
2062 branch, as well as improved support for PowerPC platforms.
2065 *) Add lots of checks for memory allocation failure, error codes to indicate
2066 failure and freeing up memory if a failure occurs.
2067 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2069 *) Add new -passin argument to dgst.
2072 *) Perform some character comparisons of different types in X509_NAME_cmp:
2073 this is needed for some certificates that reencode DNs into UTF8Strings
2074 (in violation of RFC3280) and can't or wont issue name rollover
2078 *) Make an explicit check during certificate validation to see that
2079 the CA setting in each certificate on the chain is correct. As a
2080 side effect always do the following basic checks on extensions,
2081 not just when there's an associated purpose to the check:
2083 - if there is an unhandled critical extension (unless the user
2084 has chosen to ignore this fault)
2085 - if the path length has been exceeded (if one is set at all)
2086 - that certain extensions fit the associated purpose (if one has
2090 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2092 *) Avoid a race condition when CRLs are checked in a multi threaded
2093 environment. This would happen due to the reordering of the revoked
2094 entries during signature checking and serial number lookup. Now the
2095 encoding is cached and the serial number sort performed under a lock.
2096 Add new STACK function sk_is_sorted().
2099 *) Add Delta CRL to the extension code.
2102 *) Various fixes to s3_pkt.c so alerts are sent properly.
2103 [David Holmes <d.holmes@f5.com>]
2105 *) Reduce the chances of duplicate issuer name and serial numbers (in
2106 violation of RFC3280) using the OpenSSL certificate creation utilities.
2107 This is done by creating a random 64 bit value for the initial serial
2108 number when a serial number file is created or when a self signed
2109 certificate is created using 'openssl req -x509'. The initial serial
2110 number file is created using 'openssl x509 -next_serial' in CA.pl
2111 rather than being initialized to 1.
2114 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2116 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2117 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2118 [Joe Orton, Steve Henson]
2120 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2122 [Joe Orton, Steve Henson]
2124 *) Make it possible to have multiple active certificates with the same
2125 subject in the CA index file. This is done only if the keyword
2126 'unique_subject' is set to 'no' in the main CA section (default
2127 if 'CA_default') of the configuration file. The value is saved
2128 with the database itself in a separate index attribute file,
2129 named like the index file with '.attr' appended to the name.
2132 *) X509 verify fixes. Disable broken certificate workarounds when
2133 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2134 keyUsage extension present. Don't accept CRLs with unhandled critical
2135 extensions: since verify currently doesn't process CRL extensions this
2136 rejects a CRL with *any* critical extensions. Add new verify error codes
2140 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2141 A clarification of RFC2560 will require the use of OCTET STRINGs and
2142 some implementations cannot handle the current raw format. Since OpenSSL
2143 copies and compares OCSP nonces as opaque blobs without any attempt at
2144 parsing them this should not create any compatibility issues.
2147 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2148 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2149 this HMAC (and other) operations are several times slower than OpenSSL
2153 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2154 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2156 *) Use the correct content when signing type "other".
2159 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2161 *) Fix various bugs revealed by running the NISCC test suite:
2163 Stop out of bounds reads in the ASN1 code when presented with
2164 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2166 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2168 If verify callback ignores invalid public key errors don't try to check
2169 certificate signature with the NULL public key.
2173 *) New -ignore_err option in ocsp application to stop the server
2174 exiting on the first error in a request.
2177 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2178 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2182 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2183 extra data after the compression methods not only for TLS 1.0
2184 but also for SSL 3.0 (as required by the specification).
2185 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2187 *) Change X509_certificate_type() to mark the key as exported/exportable
2188 when it's 512 *bits* long, not 512 bytes.
2191 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2192 blocks during encryption.
2195 *) Various fixes to base64 BIO and non blocking I/O. On write
2196 flushes were not handled properly if the BIO retried. On read
2197 data was not being buffered properly and had various logic bugs.
2198 This also affects blocking I/O when the data being decoded is a
2202 *) Various S/MIME bugfixes and compatibility changes:
2203 output correct application/pkcs7 MIME type if
2204 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2205 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2206 of files as .eml work). Correctly handle very long lines in MIME
2210 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2212 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2213 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2214 a protocol version number mismatch like a decryption error
2215 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2218 *) Turn on RSA blinding by default in the default implementation
2219 to avoid a timing attack. Applications that don't want it can call
2220 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2221 They would be ill-advised to do so in most cases.
2222 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2224 *) Change RSA blinding code so that it works when the PRNG is not
2225 seeded (in this case, the secret RSA exponent is abused as
2226 an unpredictable seed -- if it is not unpredictable, there
2227 is no point in blinding anyway). Make RSA blinding thread-safe
2228 by remembering the creator's thread ID in rsa->blinding and
2229 having all other threads use local one-time blinding factors
2230 (this requires more computation than sharing rsa->blinding, but
2231 avoids excessive locking; and if an RSA object is not shared
2232 between threads, blinding will still be very fast).
2235 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2236 ENGINE as defaults for all supported algorithms irrespective of
2237 the 'flags' parameter. 'flags' is now honoured, so applications
2238 should make sure they are passing it correctly.
2241 *) Target "mingw" now allows native Windows code to be generated in
2242 the Cygwin environment as well as with the MinGW compiler.
2245 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2247 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2248 via timing by performing a MAC computation even if incorrrect
2249 block cipher padding has been found. This is a countermeasure
2250 against active attacks where the attacker has to distinguish
2251 between bad padding and a MAC verification error. (CVE-2003-0078)
2253 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2254 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2255 Martin Vuagnoux (EPFL, Ilion)]
2257 *) Make the no-err option work as intended. The intention with no-err
2258 is not to have the whole error stack handling routines removed from
2259 libcrypto, it's only intended to remove all the function name and
2260 reason texts, thereby removing some of the footprint that may not
2261 be interesting if those errors aren't displayed anyway.
2263 NOTE: it's still possible for any application or module to have it's
2264 own set of error texts inserted. The routines are there, just not
2265 used by default when no-err is given.
2268 *) Add support for FreeBSD on IA64.
2269 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2271 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2272 Kerberos function mit_des_cbc_cksum(). Before this change,
2273 the value returned by DES_cbc_cksum() was like the one from
2274 mit_des_cbc_cksum(), except the bytes were swapped.
2275 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2277 *) Allow an application to disable the automatic SSL chain building.
2278 Before this a rather primitive chain build was always performed in
2279 ssl3_output_cert_chain(): an application had no way to send the
2280 correct chain if the automatic operation produced an incorrect result.
2282 Now the chain builder is disabled if either:
2284 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2286 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2288 The reasoning behind this is that an application would not want the
2289 auto chain building to take place if extra chain certificates are
2290 present and it might also want a means of sending no additional
2291 certificates (for example the chain has two certificates and the
2295 *) Add the possibility to build without the ENGINE framework.
2296 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2298 *) Under Win32 gmtime() can return NULL: check return value in
2299 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2302 *) DSA routines: under certain error conditions uninitialized BN objects
2303 could be freed. Solution: make sure initialization is performed early
2304 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2305 Nils Larsch <nla@trustcenter.de> via PR#459)
2308 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2309 checked on reconnect on the client side, therefore session resumption
2310 could still fail with a "ssl session id is different" error. This
2311 behaviour is masked when SSL_OP_ALL is used due to
2312 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2313 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2314 followup to PR #377.
2317 *) IA-32 assembler support enhancements: unified ELF targets, support
2318 for SCO/Caldera platforms, fix for Cygwin shared build.
2321 *) Add support for FreeBSD on sparc64. As a consequence, support for
2322 FreeBSD on non-x86 processors is separate from x86 processors on
2323 the config script, much like the NetBSD support.
2324 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2326 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2328 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2331 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2332 code (06) was taken as the first octet of the session ID and the last
2333 octet was ignored consequently. As a result SSLv2 client side session
2334 caching could not have worked due to the session ID mismatch between
2336 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2340 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2341 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2345 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2346 seems that in spite of existing for more than a year, many application
2347 author have done nothing to provide the necessary callbacks, which
2348 means that this particular engine will not work properly anywhere.
2349 This is a very unfortunate situation which forces us, in the name
2350 of usability, to give the hw_ncipher.c a static lock, which is part
2352 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2353 appear in 0.9.8 or later. We EXPECT application authors to have
2354 dealt properly with this when 0.9.8 is released (unless we actually
2355 make such changes in the libcrypto locking code that changes will
2356 have to be made anyway).
2359 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2360 octets have been read, EOF or an error occurs. Without this change
2361 some truncated ASN1 structures will not produce an error.
2364 *) Disable Heimdal support, since it hasn't been fully implemented.
2365 Still give the possibility to force the use of Heimdal, but with
2366 warnings and a request that patches get sent to openssl-dev.
2369 *) Add the VC-CE target, introduce the WINCE sysname, and add
2370 INSTALL.WCE and appropriate conditionals to make it build.
2371 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2373 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2374 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2375 edit numbers of the version.
2376 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2378 *) Introduce safe string copy and catenation functions
2379 (BUF_strlcpy() and BUF_strlcat()).
2380 [Ben Laurie (CHATS) and Richard Levitte]
2382 *) Avoid using fixed-size buffers for one-line DNs.
2383 [Ben Laurie (CHATS)]
2385 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2386 resizing buffers containing secrets, and use where appropriate.
2387 [Ben Laurie (CHATS)]
2389 *) Avoid using fixed size buffers for configuration file location.
2390 [Ben Laurie (CHATS)]
2392 *) Avoid filename truncation for various CA files.
2393 [Ben Laurie (CHATS)]
2395 *) Use sizeof in preference to magic numbers.
2396 [Ben Laurie (CHATS)]
2398 *) Avoid filename truncation in cert requests.
2399 [Ben Laurie (CHATS)]
2401 *) Add assertions to check for (supposedly impossible) buffer
2403 [Ben Laurie (CHATS)]
2405 *) Don't cache truncated DNS entries in the local cache (this could
2406 potentially lead to a spoofing attack).
2407 [Ben Laurie (CHATS)]
2409 *) Fix various buffers to be large enough for hex/decimal
2410 representations in a platform independent manner.
2411 [Ben Laurie (CHATS)]
2413 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2414 resizing buffers containing secrets, and use where appropriate.
2415 [Ben Laurie (CHATS)]
2417 *) Add BIO_indent() to avoid much slightly worrying code to do
2419 [Ben Laurie (CHATS)]
2421 *) Convert sprintf()/BIO_puts() to BIO_printf().
2422 [Ben Laurie (CHATS)]
2424 *) buffer_gets() could terminate with the buffer only half
2426 [Ben Laurie (CHATS)]
2428 *) Add assertions to prevent user-supplied crypto functions from
2429 overflowing internal buffers by having large block sizes, etc.
2430 [Ben Laurie (CHATS)]
2432 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2434 [Ben Laurie (CHATS)]
2436 *) Eliminate unused copy of key in RC4.
2437 [Ben Laurie (CHATS)]
2439 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2440 [Ben Laurie (CHATS)]
2442 *) Fix off-by-one error in EGD path.
2443 [Ben Laurie (CHATS)]
2445 *) If RANDFILE path is too long, ignore instead of truncating.
2446 [Ben Laurie (CHATS)]
2448 *) Eliminate unused and incorrectly sized X.509 structure
2450 [Ben Laurie (CHATS)]
2452 *) Eliminate unused and dangerous function knumber().
2453 [Ben Laurie (CHATS)]
2455 *) Eliminate unused and dangerous structure, KSSL_ERR.
2456 [Ben Laurie (CHATS)]
2458 *) Protect against overlong session ID context length in an encoded
2459 session object. Since these are local, this does not appear to be
2461 [Ben Laurie (CHATS)]
2463 *) Change from security patch (see 0.9.6e below) that did not affect
2464 the 0.9.6 release series:
2466 Remote buffer overflow in SSL3 protocol - an attacker could
2467 supply an oversized master key in Kerberos-enabled versions.
2469 [Ben Laurie (CHATS)]
2471 *) Change the SSL kerb5 codes to match RFC 2712.
2474 *) Make -nameopt work fully for req and add -reqopt switch.
2475 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2477 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2478 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2480 *) Make sure tests can be performed even if the corresponding algorithms
2481 have been removed entirely. This was also the last step to make
2482 OpenSSL compilable with DJGPP under all reasonable conditions.
2483 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2485 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2486 to allow version independent disabling of normally unselected ciphers,
2487 which may be activated as a side-effect of selecting a single cipher.
2489 (E.g., cipher list string "RSA" enables ciphersuites that are left
2490 out of "ALL" because they do not provide symmetric encryption.
2491 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2492 [Lutz Jaenicke, Bodo Moeller]
2494 *) Add appropriate support for separate platform-dependent build
2495 directories. The recommended way to make a platform-dependent
2496 build directory is the following (tested on Linux), maybe with
2499 # Place yourself outside of the OpenSSL source tree. In
2500 # this example, the environment variable OPENSSL_SOURCE
2501 # is assumed to contain the absolute OpenSSL source directory.
2502 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2503 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2504 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2505 mkdir -p `dirname $F`
2506 ln -s $OPENSSL_SOURCE/$F $F
2509 To be absolutely sure not to disturb the source tree, a "make clean"
2510 is a good thing. If it isn't successfull, don't worry about it,
2511 it probably means the source directory is very clean.
2514 *) Make sure any ENGINE control commands make local copies of string
2515 pointers passed to them whenever necessary. Otherwise it is possible
2516 the caller may have overwritten (or deallocated) the original string
2517 data when a later ENGINE operation tries to use the stored values.
2518 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2520 *) Improve diagnostics in file reading and command-line digests.
2521 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2523 *) Add AES modes CFB and OFB to the object database. Correct an
2524 error in AES-CFB decryption.
2527 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2528 allows existing EVP_CIPHER_CTX structures to be reused after
2529 calling EVP_*Final(). This behaviour is used by encryption
2530 BIOs and some applications. This has the side effect that
2531 applications must explicitly clean up cipher contexts with
2532 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2535 *) Check the values of dna and dnb in bn_mul_recursive before calling
2536 bn_mul_comba (a non zero value means the a or b arrays do not contain
2537 n2 elements) and fallback to bn_mul_normal if either is not zero.
2540 *) Fix escaping of non-ASCII characters when using the -subj option
2541 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
2544 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
2545 form for "surname", serialNumber has no short form.
2546 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
2547 therefore remove "mail" short name for "internet 7".
2548 The OID for unique identifiers in X509 certificates is
2549 x500UniqueIdentifier, not uniqueIdentifier.
2550 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
2553 *) Add an "init" command to the ENGINE config module and auto initialize
2554 ENGINEs. Without any "init" command the ENGINE will be initialized
2555 after all ctrl commands have been executed on it. If init=1 the
2556 ENGINE is initailized at that point (ctrls before that point are run
2557 on the uninitialized ENGINE and after on the initialized one). If
2558 init=0 then the ENGINE will not be iniatialized at all.
2561 *) Fix the 'app_verify_callback' interface so that the user-defined
2562 argument is actually passed to the callback: In the
2563 SSL_CTX_set_cert_verify_callback() prototype, the callback
2564 declaration has been changed from
2567 int (*cb)(X509_STORE_CTX *,void *);
2568 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
2569 i=s->ctx->app_verify_callback(&ctx)
2570 has been changed into
2571 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
2573 To update applications using SSL_CTX_set_cert_verify_callback(),
2574 a dummy argument can be added to their callback functions.
2575 [D. K. Smetters <smetters@parc.xerox.com>]
2577 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
2578 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
2580 *) Add and OPENSSL_LOAD_CONF define which will cause
2581 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
2582 This allows older applications to transparently support certain
2583 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
2584 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
2585 load the config file and OPENSSL_add_all_algorithms_conf() which will
2586 always load it have also been added.
2589 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
2590 Adjust NIDs and EVP layer.
2591 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2593 *) Config modules support in openssl utility.
2595 Most commands now load modules from the config file,
2596 though in a few (such as version) this isn't done
2597 because it couldn't be used for anything.
2599 In the case of ca and req the config file used is
2600 the same as the utility itself: that is the -config
2601 command line option can be used to specify an
2605 *) Move default behaviour from OPENSSL_config(). If appname is NULL
2606 use "openssl_conf" if filename is NULL use default openssl config file.
2609 *) Add an argument to OPENSSL_config() to allow the use of an alternative
2610 config section name. Add a new flag to tolerate a missing config file
2611 and move code to CONF_modules_load_file().
2614 *) Support for crypto accelerator cards from Accelerated Encryption
2615 Processing, www.aep.ie. (Use engine 'aep')
2616 The support was copied from 0.9.6c [engine] and adapted/corrected
2617 to work with the new engine framework.
2618 [AEP Inc. and Richard Levitte]
2620 *) Support for SureWare crypto accelerator cards from Baltimore
2621 Technologies. (Use engine 'sureware')
2622 The support was copied from 0.9.6c [engine] and adapted
2623 to work with the new engine framework.
2626 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
2627 make the newer ENGINE framework commands for the CHIL engine work.
2628 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
2630 *) Make it possible to produce shared libraries on ReliantUNIX.
2631 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
2633 *) Add the configuration target debug-linux-ppro.
2634 Make 'openssl rsa' use the general key loading routines
2635 implemented in apps.c, and make those routines able to
2636 handle the key format FORMAT_NETSCAPE and the variant
2638 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2640 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2641 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2643 *) Add -keyform to rsautl, and document -engine.
2644 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2646 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2647 BIO_R_NO_SUCH_FILE error code rather than the generic
2648 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2651 *) Add new functions
2653 ERR_peek_last_error_line
2654 ERR_peek_last_error_line_data.
2655 These are similar to
2658 ERR_peek_error_line_data,
2659 but report on the latest error recorded rather than the first one
2660 still in the error queue.
2661 [Ben Laurie, Bodo Moeller]
2663 *) default_algorithms option in ENGINE config module. This allows things
2665 default_algorithms = ALL
2666 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2669 *) Prelminary ENGINE config module.
2672 *) New experimental application configuration code.
2675 *) Change the AES code to follow the same name structure as all other
2676 symmetric ciphers, and behave the same way. Move everything to
2677 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2678 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2680 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2681 [Ben Laurie and Theo de Raadt]
2683 *) Add option to output public keys in req command.
2684 [Massimiliano Pala madwolf@openca.org]
2686 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2687 (up to about 10% better than before for P-192 and P-224).
2690 *) New functions/macros
2692 SSL_CTX_set_msg_callback(ctx, cb)
2693 SSL_CTX_set_msg_callback_arg(ctx, arg)
2694 SSL_set_msg_callback(ssl, cb)
2695 SSL_set_msg_callback_arg(ssl, arg)
2697 to request calling a callback function
2699 void cb(int write_p, int version, int content_type,
2700 const void *buf, size_t len, SSL *ssl, void *arg)
2702 whenever a protocol message has been completely received
2703 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2704 protocol version according to which the SSL library interprets
2705 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2706 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2707 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2708 specification (change_cipher_spec(20), alert(21), handshake(22)).
2709 'buf' and 'len' point to the actual message, 'ssl' to the
2710 SSL object, and 'arg' is the application-defined value set by
2711 SSL[_CTX]_set_msg_callback_arg().
2713 'openssl s_client' and 'openssl s_server' have new '-msg' options
2714 to enable a callback that displays all protocol messages.
2717 *) Change the shared library support so shared libraries are built as
2718 soon as the corresponding static library is finished, and thereby get
2719 openssl and the test programs linked against the shared library.
2720 This still only happens when the keyword "shard" has been given to
2721 the configuration scripts.
2723 NOTE: shared library support is still an experimental thing, and
2724 backward binary compatibility is still not guaranteed.
2725 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2727 *) Add support for Subject Information Access extension.
2728 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2730 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2731 additional bytes when new memory had to be allocated, not just
2732 when reusing an existing buffer.
2735 *) New command line and configuration option 'utf8' for the req command.
2736 This allows field values to be specified as UTF8 strings.
2739 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2740 runs for the former and machine-readable output for the latter.
2743 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2744 of the e-mail address in the DN (i.e., it will go into a certificate
2745 extension only). The new configuration file option 'email_in_dn = no'
2746 has the same effect.
2747 [Massimiliano Pala madwolf@openca.org]
2749 *) Change all functions with names starting with des_ to be starting
2750 with DES_ instead. Add wrappers that are compatible with libdes,
2751 but are named _ossl_old_des_*. Finally, add macros that map the
2752 des_* symbols to the corresponding _ossl_old_des_* if libdes
2753 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2754 desired, the des_* symbols will be mapped to DES_*, with one
2757 Since we provide two compatibility mappings, the user needs to
2758 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2759 compatibility is desired. The default (i.e., when that macro
2760 isn't defined) is OpenSSL 0.9.6c compatibility.
2762 There are also macros that enable and disable the support of old
2763 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2764 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2765 are defined, the default will apply: to support the old des routines.
2767 In either case, one must include openssl/des.h to get the correct
2768 definitions. Do not try to just include openssl/des_old.h, that
2771 NOTE: This is a major break of an old API into a new one. Software
2772 authors are encouraged to switch to the DES_ style functions. Some
2773 time in the future, des_old.h and the libdes compatibility functions
2774 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2775 default), and then completely removed.
2778 *) Test for certificates which contain unsupported critical extensions.
2779 If such a certificate is found during a verify operation it is
2780 rejected by default: this behaviour can be overridden by either
2781 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2782 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2783 X509_supported_extension() has also been added which returns 1 if a
2784 particular extension is supported.
2787 *) Modify the behaviour of EVP cipher functions in similar way to digests
2788 to retain compatibility with existing code.
2791 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2792 compatibility with existing code. In particular the 'ctx' parameter does
2793 not have to be to be initialized before the call to EVP_DigestInit() and
2794 it is tidied up after a call to EVP_DigestFinal(). New function
2795 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2796 EVP_MD_CTX_copy() changed to not require the destination to be
2797 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2798 requires the destination to be valid.
2800 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2801 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2804 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2805 so that complete 'Handshake' protocol structures are kept in memory
2806 instead of overwriting 'msg_type' and 'length' with 'body' data.
2809 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2810 [Massimo Santin via Richard Levitte]
2812 *) Major restructuring to the underlying ENGINE code. This includes
2813 reduction of linker bloat, separation of pure "ENGINE" manipulation
2814 (initialisation, etc) from functionality dealing with implementations
2815 of specific crypto iterfaces. This change also introduces integrated
2816 support for symmetric ciphers and digest implementations - so ENGINEs
2817 can now accelerate these by providing EVP_CIPHER and EVP_MD
2818 implementations of their own. This is detailed in crypto/engine/README
2819 as it couldn't be adequately described here. However, there are a few
2820 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2821 were changed in the original introduction of ENGINE code have now
2822 reverted back - the hooking from this code to ENGINE is now a good
2823 deal more passive and at run-time, operations deal directly with
2824 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2825 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2826 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2827 they were not being used by the framework as there is no concept of a
2828 BIGNUM_METHOD and they could not be generalised to the new
2829 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2830 ENGINE_cpy() has been removed as it cannot be consistently defined in
2834 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2837 *) Change mkdef.pl to sort symbols that get the same entry number,
2838 and make sure the automatically generated functions ERR_load_*
2839 become part of libeay.num as well.
2842 *) New function SSL_renegotiate_pending(). This returns true once
2843 renegotiation has been requested (either SSL_renegotiate() call
2844 or HelloRequest/ClientHello receveived from the peer) and becomes
2845 false once a handshake has been completed.
2846 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2847 sends a HelloRequest, but does not ensure that a handshake takes
2848 place. SSL_renegotiate_pending() is useful for checking if the
2849 client has followed the request.)
2852 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2853 By default, clients may request session resumption even during
2854 renegotiation (if session ID contexts permit); with this option,
2855 session resumption is possible only in the first handshake.
2857 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2858 more bits available for options that should not be part of
2859 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2862 *) Add some demos for certificate and certificate request creation.
2865 *) Make maximum certificate chain size accepted from the peer application
2866 settable (SSL*_get/set_max_cert_list()), as proposed by
2867 "Douglas E. Engert" <deengert@anl.gov>.
2870 *) Add support for shared libraries for Unixware-7
2871 (Boyd Lynn Gerber <gerberb@zenez.com>).
2874 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2875 be done prior to destruction. Use this to unload error strings from
2876 ENGINEs that load their own error strings. NB: This adds two new API
2877 functions to "get" and "set" this destroy handler in an ENGINE.
2880 *) Alter all existing ENGINE implementations (except "openssl" and
2881 "openbsd") to dynamically instantiate their own error strings. This
2882 makes them more flexible to be built both as statically-linked ENGINEs
2883 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2884 Also, add stub code to each that makes building them as self-contained
2885 shared-libraries easier (see README.ENGINE).
2888 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2889 implementations into applications that are completely implemented in
2890 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2891 commands that can be used to configure what shared-library to load and
2892 to control aspects of the way it is handled. Also, made an update to
2893 the README.ENGINE file that brings its information up-to-date and
2894 provides some information and instructions on the "dynamic" ENGINE
2895 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2898 *) Make it possible to unload ranges of ERR strings with a new
2899 "ERR_unload_strings" function.
2902 *) Add a copy() function to EVP_MD.
2905 *) Make EVP_MD routines take a context pointer instead of just the
2906 md_data void pointer.
2909 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2910 that the digest can only process a single chunk of data
2911 (typically because it is provided by a piece of
2912 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2913 is only going to provide a single chunk of data, and hence the
2914 framework needn't accumulate the data for oneshot drivers.
2917 *) As with "ERR", make it possible to replace the underlying "ex_data"
2918 functions. This change also alters the storage and management of global
2919 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2920 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2921 index counters. The API functions that use this state have been changed
2922 to take a "class_index" rather than pointers to the class's local STACK
2923 and counter, and there is now an API function to dynamically create new
2924 classes. This centralisation allows us to (a) plug a lot of the
2925 thread-safety problems that existed, and (b) makes it possible to clean
2926 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2927 such data would previously have always leaked in application code and
2928 workarounds were in place to make the memory debugging turn a blind eye
2929 to it. Application code that doesn't use this new function will still
2930 leak as before, but their memory debugging output will announce it now
2931 rather than letting it slide.
2933 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2934 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2935 has a return value to indicate success or failure.
2938 *) Make it possible to replace the underlying "ERR" functions such that the
2939 global state (2 LHASH tables and 2 locks) is only used by the "default"
2940 implementation. This change also adds two functions to "get" and "set"
2941 the implementation prior to it being automatically set the first time
2942 any other ERR function takes place. Ie. an application can call "get",
2943 pass the return value to a module it has just loaded, and that module
2944 can call its own "set" function using that value. This means the
2945 module's "ERR" operations will use (and modify) the error state in the
2946 application and not in its own statically linked copy of OpenSSL code.
2949 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2950 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2951 the operation, and provides a more encapsulated way for external code
2952 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2953 to use these functions rather than manually incrementing the counts.
2955 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2958 *) Add EVP test program.
2961 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2964 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2965 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2966 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2967 These allow a CRL to be built without having to access X509_CRL fields
2968 directly. Modify 'ca' application to use new functions.
2971 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2972 bug workarounds. Rollback attack detection is a security feature.
2973 The problem will only arise on OpenSSL servers when TLSv1 is not
2974 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2975 Software authors not wanting to support TLSv1 will have special reasons
2976 for their choice and can explicitly enable this option.
2977 [Bodo Moeller, Lutz Jaenicke]
2979 *) Rationalise EVP so it can be extended: don't include a union of
2980 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2981 (similar to those existing for EVP_CIPHER_CTX).
2986 EVP_MD_CTX_init(&md); /* new function call */
2987 EVP_DigestInit(&md, EVP_sha1());
2988 EVP_DigestUpdate(&md, in, len);
2989 EVP_DigestFinal(&md, out, NULL);
2990 EVP_MD_CTX_cleanup(&md); /* new function call */
2994 *) Make DES key schedule conform to the usual scheme, as well as
2995 correcting its structure. This means that calls to DES functions
2996 now have to pass a pointer to a des_key_schedule instead of a
2997 plain des_key_schedule (which was actually always a pointer
3000 des_key_schedule ks;
3002 des_set_key_checked(..., &ks);
3003 des_ncbc_encrypt(..., &ks, ...);
3005 (Note that a later change renames 'des_...' into 'DES_...'.)
3008 *) Initial reduction of linker bloat: the use of some functions, such as
3009 PEM causes large amounts of unused functions to be linked in due to
3010 poor organisation. For example pem_all.c contains every PEM function
3011 which has a knock on effect of linking in large amounts of (unused)
3012 ASN1 code. Grouping together similar functions and splitting unrelated
3013 functions prevents this.
3016 *) Cleanup of EVP macros.
3019 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3020 correct _ecb suffix.
3023 *) Add initial OCSP responder support to ocsp application. The
3024 revocation information is handled using the text based index
3025 use by the ca application. The responder can either handle
3026 requests generated internally, supplied in files (for example
3027 via a CGI script) or using an internal minimal server.
3030 *) Add configuration choices to get zlib compression for TLS.
3033 *) Changes to Kerberos SSL for RFC 2712 compliance:
3034 1. Implemented real KerberosWrapper, instead of just using
3035 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3036 2. Implemented optional authenticator field of KerberosWrapper.
3038 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3039 and authenticator structs; see crypto/krb5/.
3041 Generalized Kerberos calls to support multiple Kerberos libraries.
3042 [Vern Staats <staatsvr@asc.hpc.mil>,
3043 Jeffrey Altman <jaltman@columbia.edu>
3044 via Richard Levitte]
3046 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3047 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3048 values for each of the key sizes rather than having just
3049 parameters (and 'speed' generating keys each time).
3052 *) Speed up EVP routines.
3055 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3056 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3057 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3058 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3060 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3061 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3062 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3065 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3067 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3070 *) Added the OS2-EMX target.
3071 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3073 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3074 to support NCONF routines in extension code. New function CONF_set_nconf()
3075 to allow functions which take an NCONF to also handle the old LHASH
3076 structure: this means that the old CONF compatible routines can be
3077 retained (in particular wrt extensions) without having to duplicate the
3078 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3081 *) Enhance the general user interface with mechanisms for inner control
3082 and with possibilities to have yes/no kind of prompts.
3085 *) Change all calls to low level digest routines in the library and
3086 applications to use EVP. Add missing calls to HMAC_cleanup() and
3087 don't assume HMAC_CTX can be copied using memcpy().
3088 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3090 *) Add the possibility to control engines through control names but with
3091 arbitrary arguments instead of just a string.
3092 Change the key loaders to take a UI_METHOD instead of a callback
3093 function pointer. NOTE: this breaks binary compatibility with earlier
3094 versions of OpenSSL [engine].
3095 Adapt the nCipher code for these new conditions and add a card insertion
3099 *) Enhance the general user interface with mechanisms to better support
3100 dialog box interfaces, application-defined prompts, the possibility
3101 to use defaults (for example default passwords from somewhere else)
3102 and interrupts/cancellations.
3105 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3106 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3109 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3110 tidy up some unnecessarily weird code in 'sk_new()').
3111 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3113 *) Change the key loading routines for ENGINEs to use the same kind
3114 callback (pem_password_cb) as all other routines that need this
3118 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3119 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3120 than this minimum value is recommended.
3123 *) New random seeder for OpenVMS, using the system process statistics
3124 that are easily reachable.
3127 *) Windows apparently can't transparently handle global
3128 variables defined in DLLs. Initialisations such as:
3130 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3132 wont compile. This is used by the any applications that need to
3133 declare their own ASN1 modules. This was fixed by adding the option
3134 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3135 needed for static libraries under Win32.
3138 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3139 setting of purpose and trust fields. New X509_STORE trust and
3140 purpose functions and tidy up setting in other SSL functions.
3143 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3144 structure. These are inherited by X509_STORE_CTX when it is
3145 initialised. This allows various defaults to be set in the
3146 X509_STORE structure (such as flags for CRL checking and custom
3147 purpose or trust settings) for functions which only use X509_STORE_CTX
3148 internally such as S/MIME.
3150 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3151 trust settings if they are not set in X509_STORE. This allows X509_STORE
3152 purposes and trust (in S/MIME for example) to override any set by default.
3154 Add command line options for CRL checking to smime, s_client and s_server
3158 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3159 are set then the CRL is looked up in the X509_STORE structure and
3160 its validity and signature checked, then if the certificate is found
3161 in the CRL the verify fails with a revoked error.
3163 Various new CRL related callbacks added to X509_STORE_CTX structure.
3165 Command line options added to 'verify' application to support this.
3167 This needs some additional work, such as being able to handle multiple
3168 CRLs with different times, extension based lookup (rather than just
3169 by subject name) and ultimately more complete V2 CRL extension
3173 *) Add a general user interface API (crypto/ui/). This is designed
3174 to replace things like des_read_password and friends (backward
3175 compatibility functions using this new API are provided).
3176 The purpose is to remove prompting functions from the DES code
3177 section as well as provide for prompting through dialog boxes in
3178 a window system and the like.
3181 *) Add "ex_data" support to ENGINE so implementations can add state at a
3182 per-structure level rather than having to store it globally.
3185 *) Make it possible for ENGINE structures to be copied when retrieved by
3186 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3187 This causes the "original" ENGINE structure to act like a template,
3188 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3189 operational state can be localised to each ENGINE structure, despite the
3190 fact they all share the same "methods". New ENGINE structures returned in
3191 this case have no functional references and the return value is the single
3192 structural reference. This matches the single structural reference returned
3193 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3197 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3198 needs to match any other type at all we need to manually clear the
3202 *) Changes to the "openssl engine" utility to include;
3203 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3204 about an ENGINE's available control commands.
3205 - executing control commands from command line arguments using the
3206 '-pre' and '-post' switches. '-post' is only used if '-t' is
3207 specified and the ENGINE is successfully initialised. The syntax for
3208 the individual commands are colon-separated, for example;
3209 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3212 *) New dynamic control command support for ENGINEs. ENGINEs can now
3213 declare their own commands (numbers), names (strings), descriptions,
3214 and input types for run-time discovery by calling applications. A
3215 subset of these commands are implicitly classed as "executable"
3216 depending on their input type, and only these can be invoked through
3217 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3218 can be based on user input, config files, etc). The distinction is
3219 that "executable" commands cannot return anything other than a boolean
3220 result and can only support numeric or string input, whereas some
3221 discoverable commands may only be for direct use through
3222 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3223 pointers, or other custom uses. The "executable" commands are to
3224 support parameterisations of ENGINE behaviour that can be
3225 unambiguously defined by ENGINEs and used consistently across any
3226 OpenSSL-based application. Commands have been added to all the
3227 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3228 control over shared-library paths without source code alterations.
3231 *) Changed all ENGINE implementations to dynamically allocate their
3232 ENGINEs rather than declaring them statically. Apart from this being
3233 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3234 this also allows the implementations to compile without using the
3235 internal engine_int.h header.
3238 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3239 'const' value. Any code that should be able to modify a RAND_METHOD
3240 should already have non-const pointers to it (ie. they should only
3241 modify their own ones).
3244 *) Made a variety of little tweaks to the ENGINE code.
3245 - "atalla" and "ubsec" string definitions were moved from header files
3246 to C code. "nuron" string definitions were placed in variables
3247 rather than hard-coded - allowing parameterisation of these values
3248 later on via ctrl() commands.
3249 - Removed unused "#if 0"'d code.
3250 - Fixed engine list iteration code so it uses ENGINE_free() to release
3251 structural references.
3252 - Constified the RAND_METHOD element of ENGINE structures.
3253 - Constified various get/set functions as appropriate and added
3254 missing functions (including a catch-all ENGINE_cpy that duplicates
3255 all ENGINE values onto a new ENGINE except reference counts/state).
3256 - Removed NULL parameter checks in get/set functions. Setting a method
3257 or function to NULL is a way of cancelling out a previously set
3258 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3259 and doesn't justify the extra error symbols and code.
3260 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3261 flags from engine_int.h to engine.h.
3262 - Changed prototypes for ENGINE handler functions (init(), finish(),
3263 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3266 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3267 to the algorithm using long division. The binary algorithm can be
3268 used only if the modulus is odd. On 32-bit systems, it is faster
3269 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3270 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3271 up to 450 bits. In 64-bit environments, the binary algorithm
3272 appears to be advantageous for much longer moduli; here we use it
3273 for moduli up to 2048 bits.
3276 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3277 could not support the combine flag in choice fields.
3280 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3281 extensions from a certificate request to the certificate.
3284 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3285 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3286 file: this allows the display of the certificate about to be
3287 signed to be customised, to allow certain fields to be included
3288 or excluded and extension details. The old system didn't display
3289 multicharacter strings properly, omitted fields not in the policy
3290 and couldn't display additional details such as extensions.
3293 *) Function EC_POINTs_mul for multiple scalar multiplication
3294 of an arbitrary number of elliptic curve points
3295 \sum scalars[i]*points[i],
3296 optionally including the generator defined for the EC_GROUP:
3297 scalar*generator + \sum scalars[i]*points[i].
3299 EC_POINT_mul is a simple wrapper function for the typical case
3300 that the point list has just one item (besides the optional
3304 *) First EC_METHODs for curves over GF(p):
3306 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3307 operations and provides various method functions that can also
3308 operate with faster implementations of modular arithmetic.
3310 EC_GFp_mont_method() reuses most functions that are part of
3311 EC_GFp_simple_method, but uses Montgomery arithmetic.
3313 [Bodo Moeller; point addition and point doubling
3314 implementation directly derived from source code provided by
3315 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3317 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3318 crypto/ec/ec_lib.c):
3320 Curves are EC_GROUP objects (with an optional group generator)
3321 based on EC_METHODs that are built into the library.
3323 Points are EC_POINT objects based on EC_GROUP objects.
3325 Most of the framework would be able to handle curves over arbitrary
3326 finite fields, but as there are no obvious types for fields other
3327 than GF(p), some functions are limited to that for now.
3330 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3331 that the file contains a complete HTTP response.
3334 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3335 change the def and num file printf format specifier from "%-40sXXX"
3336 to "%-39s XXX". The latter will always guarantee a space after the
3337 field while the former will cause them to run together if the field
3338 is 40 of more characters long.
3341 *) Constify the cipher and digest 'method' functions and structures
3342 and modify related functions to take constant EVP_MD and EVP_CIPHER
3346 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3347 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3350 *) Modify EVP_Digest*() routines so they now return values. Although the
3351 internal software routines can never fail additional hardware versions
3355 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3357 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3358 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3361 ERR_R_NESTED_ASN1_ERROR
3363 ERR_R_MISSING_ASN1_EOS
3364 were 4 .. 9, conflicting with
3365 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3367 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3368 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3370 Add new error code 'ERR_R_INTERNAL_ERROR'.
3373 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3377 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3378 sets the subject name for a new request or supersedes the
3379 subject name in a given request. Formats that can be parsed are
3380 'CN=Some Name, OU=myOU, C=IT'
3382 'CN=Some Name/OU=myOU/C=IT'.
3384 Add options '-batch' and '-verbose' to 'openssl req'.
3385 [Massimiliano Pala <madwolf@hackmasters.net>]
3387 *) Introduce the possibility to access global variables through
3388 functions on platform were that's the best way to handle exporting
3389 global variables in shared libraries. To enable this functionality,
3390 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3391 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3392 is normally done by Configure or something similar).
3394 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3395 in the source file (foo.c) like this:
3397 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3398 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3400 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3401 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3403 OPENSSL_DECLARE_GLOBAL(int,foo);
3404 #define foo OPENSSL_GLOBAL_REF(foo)
3405 OPENSSL_DECLARE_GLOBAL(double,bar);
3406 #define bar OPENSSL_GLOBAL_REF(bar)
3408 The #defines are very important, and therefore so is including the
3409 header file everywhere where the defined globals are used.
3411 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3412 of ASN.1 items, but that structure is a bit different.
3414 The largest change is in util/mkdef.pl which has been enhanced with
3415 better and easier to understand logic to choose which symbols should
3416 go into the Windows .def files as well as a number of fixes and code
3417 cleanup (among others, algorithm keywords are now sorted
3418 lexicographically to avoid constant rewrites).
3421 *) In BN_div() keep a copy of the sign of 'num' before writing the
3422 result to 'rm' because if rm==num the value will be overwritten
3423 and produce the wrong result if 'num' is negative: this caused
3424 problems with BN_mod() and BN_nnmod().
3427 *) Function OCSP_request_verify(). This checks the signature on an
3428 OCSP request and verifies the signer certificate. The signer
3429 certificate is just checked for a generic purpose and OCSP request
3433 *) Add OCSP_check_validity() function to check the validity of OCSP
3434 responses. OCSP responses are prepared in real time and may only
3435 be a few seconds old. Simply checking that the current time lies
3436 between thisUpdate and nextUpdate max reject otherwise valid responses
3437 caused by either OCSP responder or client clock inaccuracy. Instead
3438 we allow thisUpdate and nextUpdate to fall within a certain period of
3439 the current time. The age of the response can also optionally be
3440 checked. Two new options -validity_period and -status_age added to
3444 *) If signature or public key algorithm is unrecognized print out its
3445 OID rather that just UNKNOWN.
3448 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3449 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3450 ID to be generated from the issuer certificate alone which can then be
3451 passed to OCSP_id_issuer_cmp().
3454 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3455 ASN1 modules to export functions returning ASN1_ITEM pointers
3456 instead of the ASN1_ITEM structures themselves. This adds several
3457 new macros which allow the underlying ASN1 function/structure to
3458 be accessed transparently. As a result code should not use ASN1_ITEM
3459 references directly (such as &X509_it) but instead use the relevant
3460 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3461 use of the new ASN1 code on platforms where exporting structures
3462 is problematical (for example in shared libraries) but exporting
3463 functions returning pointers to structures is not.
3466 *) Add support for overriding the generation of SSL/TLS session IDs.
3467 These callbacks can be registered either in an SSL_CTX or per SSL.
3468 The purpose of this is to allow applications to control, if they wish,
3469 the arbitrary values chosen for use as session IDs, particularly as it
3470 can be useful for session caching in multiple-server environments. A
3471 command-line switch for testing this (and any client code that wishes
3472 to use such a feature) has been added to "s_server".
3473 [Geoff Thorpe, Lutz Jaenicke]
3475 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3476 of the form '#if defined(...) || defined(...) || ...' and
3477 '#if !defined(...) && !defined(...) && ...'. This also avoids
3478 the growing number of special cases it was previously handling.
3481 *) Make all configuration macros available for application by making
3482 sure they are available in opensslconf.h, by giving them names starting
3483 with "OPENSSL_" to avoid conflicts with other packages and by making
3484 sure e_os2.h will cover all platform-specific cases together with
3486 Additionally, it is now possible to define configuration/platform-
3487 specific names (called "system identities"). In the C code, these
3488 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3489 macro with the name beginning with "OPENSSL_SYS_", which is determined
3490 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3494 *) New option -set_serial to 'req' and 'x509' this allows the serial
3495 number to use to be specified on the command line. Previously self
3496 signed certificates were hard coded with serial number 0 and the
3497 CA options of 'x509' had to use a serial number in a file which was
3501 *) New options to 'ca' utility to support V2 CRL entry extensions.
3502 Currently CRL reason, invalidity date and hold instruction are
3503 supported. Add new CRL extensions to V3 code and some new objects.
3506 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3507 disable standard block padding (aka PKCS#5 padding) in the EVP
3508 API, which was previously mandatory. This means that the data is
3509 not padded in any way and so the total length much be a multiple
3510 of the block size, otherwise an error occurs.
3513 *) Initial (incomplete) OCSP SSL support.
3516 *) New function OCSP_parse_url(). This splits up a URL into its host,
3517 port and path components: primarily to parse OCSP URLs. New -url
3518 option to ocsp utility.
3521 *) New nonce behavior. The return value of OCSP_check_nonce() now
3522 reflects the various checks performed. Applications can decide
3523 whether to tolerate certain situations such as an absent nonce
3524 in a response when one was present in a request: the ocsp application
3525 just prints out a warning. New function OCSP_add1_basic_nonce()
3526 this is to allow responders to include a nonce in a response even if
3527 the request is nonce-less.
3530 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3531 skipped when using openssl x509 multiple times on a single input file,
3532 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3535 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3536 set string type: to handle setting ASN1_TIME structures. Fix ca
3537 utility to correctly initialize revocation date of CRLs.
3540 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
3541 the clients preferred ciphersuites and rather use its own preferences.
3542 Should help to work around M$ SGC (Server Gated Cryptography) bug in
3543 Internet Explorer by ensuring unchanged hash method during stepup.
3544 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
3547 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
3548 to aes and add a new 'exist' option to print out symbols that don't
3552 *) Additional options to ocsp utility to allow flags to be set and
3553 additional certificates supplied.
3556 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
3557 OCSP client a number of certificate to only verify the response
3561 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
3562 handle the new API. Currently only ECB, CBC modes supported. Add new
3565 Add TLS AES ciphersuites as described in RFC3268, "Advanced
3566 Encryption Standard (AES) Ciphersuites for Transport Layer
3567 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
3568 not enabled by default and were not part of the "ALL" ciphersuite
3569 alias because they were not yet official; they could be
3570 explicitly requested by specifying the "AESdraft" ciphersuite
3571 group alias. In the final release of OpenSSL 0.9.7, the group
3572 alias is called "AES" and is part of "ALL".)
3573 [Ben Laurie, Steve Henson, Bodo Moeller]
3575 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
3576 request to response.
3579 *) Functions for OCSP responders. OCSP_request_onereq_count(),
3580 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
3581 extract information from a certificate request. OCSP_response_create()
3582 creates a response and optionally adds a basic response structure.
3583 OCSP_basic_add1_status() adds a complete single response to a basic
3584 response and returns the OCSP_SINGLERESP structure just added (to allow
3585 extensions to be included for example). OCSP_basic_add1_cert() adds a
3586 certificate to a basic response and OCSP_basic_sign() signs a basic
3587 response with various flags. New helper functions ASN1_TIME_check()
3588 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
3589 (converts ASN1_TIME to GeneralizedTime).
3592 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
3593 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
3594 structure from a certificate. X509_pubkey_digest() digests the public_key
3595 contents: this is used in various key identifiers.
3598 *) Make sk_sort() tolerate a NULL argument.
3599 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
3601 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
3602 passed by the function are trusted implicitly. If any of them signed the
3603 response then it is assumed to be valid and is not verified.
3606 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
3607 to data. This was previously part of the PKCS7 ASN1 code. This
3608 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
3609 [Steve Henson, reported by Kenneth R. Robinette
3610 <support@securenetterm.com>]
3612 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
3613 routines: without these tracing memory leaks is very painful.
3614 Fix leaks in PKCS12 and PKCS7 routines.
3617 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
3618 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
3619 effectively meant GeneralizedTime would never be used. Now it
3620 is initialised to -1 but X509_time_adj() now has to check the value
3621 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
3622 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
3623 [Steve Henson, reported by Kenneth R. Robinette
3624 <support@securenetterm.com>]
3626 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
3627 result in a zero length in the ASN1_INTEGER structure which was
3628 not consistent with the structure when d2i_ASN1_INTEGER() was used
3629 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
3630 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
3631 where it did not print out a minus for negative ASN1_INTEGER.
3634 *) Add summary printout to ocsp utility. The various functions which
3635 convert status values to strings have been renamed to:
3636 OCSP_response_status_str(), OCSP_cert_status_str() and
3637 OCSP_crl_reason_str() and are no longer static. New options
3638 to verify nonce values and to disable verification. OCSP response
3639 printout format cleaned up.
3642 *) Add additional OCSP certificate checks. These are those specified
3643 in RFC2560. This consists of two separate checks: the CA of the
3644 certificate being checked must either be the OCSP signer certificate
3645 or the issuer of the OCSP signer certificate. In the latter case the
3646 OCSP signer certificate must contain the OCSP signing extended key
3647 usage. This check is performed by attempting to match the OCSP
3648 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3649 in the OCSP_CERTID structures of the response.
3652 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3653 and related routines. This uses the standard OpenSSL certificate
3654 verify routines to perform initial checks (just CA validity) and
3655 to obtain the certificate chain. Then additional checks will be
3656 performed on the chain. Currently the root CA is checked to see
3657 if it is explicitly trusted for OCSP signing. This is used to set
3658 a root CA as a global signing root: that is any certificate that
3659 chains to that CA is an acceptable OCSP signing certificate.
3662 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3663 extensions from a separate configuration file.
3664 As when reading extensions from the main configuration file,
3665 the '-extensions ...' option may be used for specifying the
3667 [Massimiliano Pala <madwolf@comune.modena.it>]
3669 *) New OCSP utility. Allows OCSP requests to be generated or
3670 read. The request can be sent to a responder and the output
3671 parsed, outputed or printed in text form. Not complete yet:
3672 still needs to check the OCSP response validity.
3675 *) New subcommands for 'openssl ca':
3676 'openssl ca -status <serial>' prints the status of the cert with
3677 the given serial number (according to the index file).
3678 'openssl ca -updatedb' updates the expiry status of certificates
3680 [Massimiliano Pala <madwolf@comune.modena.it>]
3682 *) New '-newreq-nodes' command option to CA.pl. This is like
3683 '-newreq', but calls 'openssl req' with the '-nodes' option
3684 so that the resulting key is not encrypted.
3685 [Damien Miller <djm@mindrot.org>]
3687 *) New configuration for the GNU Hurd.
3688 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3690 *) Initial code to implement OCSP basic response verify. This
3691 is currently incomplete. Currently just finds the signer's
3692 certificate and verifies the signature on the response.
3695 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3696 value of OPENSSLDIR. This is available via the new '-d' option
3697 to 'openssl version', and is also included in 'openssl version -a'.
3700 *) Allowing defining memory allocation callbacks that will be given
3701 file name and line number information in additional arguments
3702 (a const char* and an int). The basic functionality remains, as
3703 well as the original possibility to just replace malloc(),
3704 realloc() and free() by functions that do not know about these
3705 additional arguments. To register and find out the current
3706 settings for extended allocation functions, the following
3707 functions are provided:
3709 CRYPTO_set_mem_ex_functions
3710 CRYPTO_set_locked_mem_ex_functions
3711 CRYPTO_get_mem_ex_functions
3712 CRYPTO_get_locked_mem_ex_functions
3714 These work the same way as CRYPTO_set_mem_functions and friends.
3715 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3716 extended allocation function is enabled.
3717 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3718 a conventional allocation function is enabled.
3719 [Richard Levitte, Bodo Moeller]
3721 *) Finish off removing the remaining LHASH function pointer casts.
3722 There should no longer be any prototype-casting required when using
3723 the LHASH abstraction, and any casts that remain are "bugs". See
3724 the callback types and macros at the head of lhash.h for details
3725 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3728 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3729 If /dev/[u]random devices are not available or do not return enough
3730 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3732 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3733 /etc/entropy will be queried once each in this sequence, quering stops
3734 when enough entropy was collected without querying more sockets.
3737 *) Change the Unix RAND_poll() variant to be able to poll several
3738 random devices, as specified by DEVRANDOM, until a sufficient amount
3739 of data has been collected. We spend at most 10 ms on each file
3740 (select timeout) and read in non-blocking mode. DEVRANDOM now
3741 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3742 (previously it was just the string "/dev/urandom"), so on typical
3743 platforms the 10 ms delay will never occur.
3744 Also separate out the Unix variant to its own file, rand_unix.c.
3745 For VMS, there's a currently-empty rand_vms.c.
3748 *) Move OCSP client related routines to ocsp_cl.c. These
3749 provide utility functions which an application needing
3750 to issue a request to an OCSP responder and analyse the
3751 response will typically need: as opposed to those which an
3752 OCSP responder itself would need which will be added later.
3754 OCSP_request_sign() signs an OCSP request with an API similar
3755 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3756 response. OCSP_response_get1_basic() extracts basic response
3757 from response. OCSP_resp_find_status(): finds and extracts status
3758 information from an OCSP_CERTID structure (which will be created
3759 when the request structure is built). These are built from lower
3760 level functions which work on OCSP_SINGLERESP structures but
3761 wont normally be used unless the application wishes to examine
3762 extensions in the OCSP response for example.
3764 Replace nonce routines with a pair of functions.
3765 OCSP_request_add1_nonce() adds a nonce value and optionally
3766 generates a random value. OCSP_check_nonce() checks the
3767 validity of the nonce in an OCSP response.
3770 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3771 This doesn't copy the supplied OCSP_CERTID and avoids the
3772 need to free up the newly created id. Change return type
3773 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3774 This can then be used to add extensions to the request.
3775 Deleted OCSP_request_new(), since most of its functionality
3776 is now in OCSP_REQUEST_new() (and the case insensitive name
3777 clash) apart from the ability to set the request name which
3778 will be added elsewhere.
3781 *) Update OCSP API. Remove obsolete extensions argument from
3782 various functions. Extensions are now handled using the new
3783 OCSP extension code. New simple OCSP HTTP function which
3784 can be used to send requests and parse the response.
3787 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3788 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3789 uses the special reorder version of SET OF to sort the attributes
3790 and reorder them to match the encoded order. This resolves a long
3791 standing problem: a verify on a PKCS7 structure just after signing
3792 it used to fail because the attribute order did not match the
3793 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3794 it uses the received order. This is necessary to tolerate some broken
3795 software that does not order SET OF. This is handled by encoding
3796 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3797 to produce the required SET OF.
3800 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3801 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3802 files to get correct declarations of the ASN.1 item variables.
3805 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3806 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3807 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3808 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3809 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3810 ASN1_ITEM and no wrapper functions.
3813 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3814 replace the old function pointer based I/O routines. Change most of
3815 the *_d2i_bio() and *_d2i_fp() functions to use these.
3818 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3819 lines, recognice more "algorithms" that can be deselected, and make
3820 it complain about algorithm deselection that isn't recognised.
3823 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3824 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3825 to use new functions. Add NO_ASN1_OLD which can be set to remove
3826 some old style ASN1 functions: this can be used to determine if old
3827 code will still work when these eventually go away.
3830 *) New extension functions for OCSP structures, these follow the
3831 same conventions as certificates and CRLs.
3834 *) New function X509V3_add1_i2d(). This automatically encodes and
3835 adds an extension. Its behaviour can be customised with various
3836 flags to append, replace or delete. Various wrappers added for
3837 certifcates and CRLs.
3840 *) Fix to avoid calling the underlying ASN1 print routine when
3841 an extension cannot be parsed. Correct a typo in the
3842 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3845 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3846 entries for variables.
3849 *) Add functionality to apps/openssl.c for detecting locking
3850 problems: As the program is single-threaded, all we have
3851 to do is register a locking callback using an array for
3852 storing which locks are currently held by the program.
3855 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3856 SSL_get_ex_data_X509_STORE_idx(), which is used in
3857 ssl_verify_cert_chain() and thus can be called at any time
3858 during TLS/SSL handshakes so that thread-safety is essential.
3859 Unfortunately, the ex_data design is not at all suited
3860 for multi-threaded use, so it probably should be abolished.
3863 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3864 [Broadcom, tweaked and integrated by Geoff Thorpe]
3866 *) Move common extension printing code to new function
3867 X509V3_print_extensions(). Reorganise OCSP print routines and
3868 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3871 *) New function X509_signature_print() to remove duplication in some
3875 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3876 set (this was treated exactly the same as SET OF previously). This
3877 is used to reorder the STACK representing the structure to match the
3878 encoding. This will be used to get round a problem where a PKCS7
3879 structure which was signed could not be verified because the STACK
3880 order did not reflect the encoded order.
3883 *) Reimplement the OCSP ASN1 module using the new code.
3886 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3887 for its ASN1 operations. The old style function pointers still exist
3888 for now but they will eventually go away.
3891 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3892 completely replaces the old ASN1 functionality with a table driven
3893 encoder and decoder which interprets an ASN1_ITEM structure describing
3894 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3895 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3896 has also been converted to the new form.
3899 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3900 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3901 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3902 for negative moduli.
3905 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3906 of not touching the result's sign bit.
3909 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3913 *) Changed the LHASH code to use prototypes for callbacks, and created
3914 macros to declare and implement thin (optionally static) functions
3915 that provide type-safety and avoid function pointer casting for the
3916 type-specific callbacks.
3919 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3921 [Veers Staats <staatsvr@asc.hpc.mil>,
3922 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3924 *) Reformat the FAQ so the different questions and answers can be divided
3925 in sections depending on the subject.
3928 *) Have the zlib compression code load ZLIB.DLL dynamically under
3932 *) New function BN_mod_sqrt for computing square roots modulo a prime
3933 (using the probabilistic Tonelli-Shanks algorithm unless
3934 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3935 be handled deterministically).
3936 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3938 *) Make BN_mod_inverse faster by explicitly handling small quotients
3939 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3940 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3943 *) New function BN_kronecker.
3946 *) Fix BN_gcd so that it works on negative inputs; the result is
3947 positive unless both parameters are zero.
3948 Previously something reasonably close to an infinite loop was
3949 possible because numbers could be growing instead of shrinking
3950 in the implementation of Euclid's algorithm.
3953 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3954 sign of the number in question.
3956 Fix BN_is_word(a,w) to work correctly for w == 0.
3958 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3959 because its test if the absolute value of 'a' equals 'w'.
3960 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3961 it exists mostly for use in the implementations of BN_is_zero(),
3962 BN_is_one(), and BN_is_word().
3965 *) New function BN_swap.
3968 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3969 the exponentiation functions are more likely to produce reasonable
3970 results on negative inputs.
3973 *) Change BN_mod_mul so that the result is always non-negative.
3974 Previously, it could be negative if one of the factors was negative;
3975 I don't think anyone really wanted that behaviour.
3978 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3979 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3980 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3981 and add new functions:
3990 BN_mod_lshift1_quick
3994 These functions always generate non-negative results.
3996 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3997 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3999 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4000 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4001 be reduced modulo m.
4002 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4005 The following entry accidentily appeared in the CHANGES file
4006 distributed with OpenSSL 0.9.7. The modifications described in
4007 it do *not* apply to OpenSSL 0.9.7.
4009 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4010 was actually never needed) and in BN_mul(). The removal in BN_mul()
4011 required a small change in bn_mul_part_recursive() and the addition
4012 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4013 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4014 bn_sub_words() and bn_add_words() except they take arrays with
4019 *) In 'openssl passwd', verify passwords read from the terminal
4020 unless the '-salt' option is used (which usually means that
4021 verification would just waste user's time since the resulting
4022 hash is going to be compared with some given password hash)
4023 or the new '-noverify' option is used.
4025 This is an incompatible change, but it does not affect
4026 non-interactive use of 'openssl passwd' (passwords on the command
4027 line, '-stdin' option, '-in ...' option) and thus should not
4031 *) Remove all references to RSAref, since there's no more need for it.
4034 *) Make DSO load along a path given through an environment variable
4035 (SHLIB_PATH) with shl_load().
4038 *) Constify the ENGINE code as a result of BIGNUM constification.
4039 Also constify the RSA code and most things related to it. In a
4040 few places, most notable in the depth of the ASN.1 code, ugly
4041 casts back to non-const were required (to be solved at a later
4045 *) Make it so the openssl application has all engines loaded by default.
4048 *) Constify the BIGNUM routines a little more.
4051 *) Add the following functions:
4053 ENGINE_load_cswift()
4055 ENGINE_load_atalla()
4057 ENGINE_load_builtin_engines()
4059 That way, an application can itself choose if external engines that
4060 are built-in in OpenSSL shall ever be used or not. The benefit is
4061 that applications won't have to be linked with libdl or other dso
4062 libraries unless it's really needed.
4064 Changed 'openssl engine' to load all engines on demand.
4065 Changed the engine header files to avoid the duplication of some
4066 declarations (they differed!).
4069 *) 'openssl engine' can now list capabilities.
4072 *) Better error reporting in 'openssl engine'.
4075 *) Never call load_dh_param(NULL) in s_server.
4078 *) Add engine application. It can currently list engines by name and
4079 identity, and test if they are actually available.
4082 *) Improve RPM specification file by forcing symbolic linking and making
4083 sure the installed documentation is also owned by root.root.
4084 [Damien Miller <djm@mindrot.org>]
4086 *) Give the OpenSSL applications more possibilities to make use of
4087 keys (public as well as private) handled by engines.
4090 *) Add OCSP code that comes from CertCo.
4093 *) Add VMS support for the Rijndael code.
4096 *) Added untested support for Nuron crypto accelerator.
4099 *) Add support for external cryptographic devices. This code was
4100 previously distributed separately as the "engine" branch.
4101 [Geoff Thorpe, Richard Levitte]
4103 *) Rework the filename-translation in the DSO code. It is now possible to
4104 have far greater control over how a "name" is turned into a filename
4105 depending on the operating environment and any oddities about the
4106 different shared library filenames on each system.
4109 *) Support threads on FreeBSD-elf in Configure.
4112 *) Fix for SHA1 assembly problem with MASM: it produces
4113 warnings about corrupt line number information when assembling
4114 with debugging information. This is caused by the overlapping
4116 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4119 NCONF_get_number() has no error checking at all. As a replacement,
4120 NCONF_get_number_e() is defined (_e for "error checking") and is
4121 promoted strongly. The old NCONF_get_number is kept around for
4122 binary backward compatibility.
4123 Make it possible for methods to load from something other than a BIO,
4124 by providing a function pointer that is given a name instead of a BIO.
4125 For example, this could be used to load configuration data from an
4129 *) Fix for non blocking accept BIOs. Added new I/O special reason
4130 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4131 with non blocking I/O was not possible because no retry code was
4132 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4136 *) Added the beginnings of Rijndael support.
4139 *) Fix for bug in DirectoryString mask setting. Add support for
4140 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4141 to allow certificate printing to more controllable, additional
4142 'certopt' option to 'x509' to allow new printing options to be
4146 *) Clean old EAY MD5 hack from e_os.h.
4149 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4151 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4152 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4153 [Joe Orton, Steve Henson]
4155 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4157 *) Fix additional bug revealed by the NISCC test suite:
4159 Stop bug triggering large recursion when presented with
4160 certain ASN.1 tags (CVE-2003-0851)
4163 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4165 *) Fix various bugs revealed by running the NISCC test suite:
4167 Stop out of bounds reads in the ASN1 code when presented with
4168 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4170 If verify callback ignores invalid public key errors don't try to check
4171 certificate signature with the NULL public key.
4175 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4176 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4180 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4181 extra data after the compression methods not only for TLS 1.0
4182 but also for SSL 3.0 (as required by the specification).
4183 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4185 *) Change X509_certificate_type() to mark the key as exported/exportable
4186 when it's 512 *bits* long, not 512 bytes.
4189 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4191 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4192 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4193 a protocol version number mismatch like a decryption error
4194 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4197 *) Turn on RSA blinding by default in the default implementation
4198 to avoid a timing attack. Applications that don't want it can call
4199 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4200 They would be ill-advised to do so in most cases.
4201 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4203 *) Change RSA blinding code so that it works when the PRNG is not
4204 seeded (in this case, the secret RSA exponent is abused as
4205 an unpredictable seed -- if it is not unpredictable, there
4206 is no point in blinding anyway). Make RSA blinding thread-safe
4207 by remembering the creator's thread ID in rsa->blinding and
4208 having all other threads use local one-time blinding factors
4209 (this requires more computation than sharing rsa->blinding, but
4210 avoids excessive locking; and if an RSA object is not shared
4211 between threads, blinding will still be very fast).
4214 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4216 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4217 via timing by performing a MAC computation even if incorrrect
4218 block cipher padding has been found. This is a countermeasure
4219 against active attacks where the attacker has to distinguish
4220 between bad padding and a MAC verification error. (CVE-2003-0078)
4222 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4223 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4224 Martin Vuagnoux (EPFL, Ilion)]
4226 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4228 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4229 memory from it's contents. This is done with a counter that will
4230 place alternating values in each byte. This can be used to solve
4231 two issues: 1) the removal of calls to memset() by highly optimizing
4232 compilers, and 2) cleansing with other values than 0, since those can
4233 be read through on certain media, for example a swap space on disk.
4236 *) Bugfix: client side session caching did not work with external caching,
4237 because the session->cipher setting was not restored when reloading
4238 from the external cache. This problem was masked, when
4239 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4240 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4243 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4244 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4245 [Zeev Lieber <zeev-l@yahoo.com>]
4247 *) Undo an undocumented change introduced in 0.9.6e which caused
4248 repeated calls to OpenSSL_add_all_ciphers() and
4249 OpenSSL_add_all_digests() to be ignored, even after calling
4253 *) Change the default configuration reader to deal with last line not
4254 being properly terminated.
4257 *) Change X509_NAME_cmp() so it applies the special rules on handling
4258 DN values that are of type PrintableString, as well as RDNs of type
4259 emailAddress where the value has the type ia5String.
4260 [stefank@valicert.com via Richard Levitte]
4262 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4263 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4264 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4265 the bitwise-OR of the two for use by the majority of applications
4266 wanting this behaviour, and update the docs. The documented
4267 behaviour and actual behaviour were inconsistent and had been
4268 changing anyway, so this is more a bug-fix than a behavioural
4270 [Geoff Thorpe, diagnosed by Nadav Har'El]
4272 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4273 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4276 *) Fix initialization code race conditions in
4277 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4278 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4279 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4280 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4281 ssl2_get_cipher_by_char(),
4282 ssl3_get_cipher_by_char().
4283 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4285 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4286 the cached sessions are flushed, as the remove_cb() might use ex_data
4287 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4288 (see [openssl.org #212]).
4289 [Geoff Thorpe, Lutz Jaenicke]
4291 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4292 length, instead of the encoding length to d2i_ASN1_OBJECT.
4295 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4297 *) [In 0.9.6g-engine release:]
4298 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4299 [Lynn Gazis <lgazis@rainbow.com>]
4301 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4303 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4304 and get fix the header length calculation.
4305 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4306 Alon Kantor <alonk@checkpoint.com> (and others),
4309 *) Use proper error handling instead of 'assertions' in buffer
4310 overflow checks added in 0.9.6e. This prevents DoS (the
4311 assertions could call abort()).
4312 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4314 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4316 *) Add various sanity checks to asn1_get_length() to reject
4317 the ASN1 length bytes if they exceed sizeof(long), will appear
4318 negative or the content length exceeds the length of the
4320 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4322 *) Fix cipher selection routines: ciphers without encryption had no flags
4323 for the cipher strength set and where therefore not handled correctly
4324 by the selection routines (PR #130).
4327 *) Fix EVP_dsa_sha macro.
4331 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4332 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4333 that was added in OpenSSL 0.9.6d.
4335 As the countermeasure turned out to be incompatible with some
4336 broken SSL implementations, the new option is part of SSL_OP_ALL.
4337 SSL_OP_ALL is usually employed when compatibility with weird SSL
4338 implementations is desired (e.g. '-bugs' option to 's_client' and
4339 's_server'), so the new option is automatically set in many
4343 *) Changes in security patch:
4345 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4346 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4347 Air Force Materiel Command, USAF, under agreement number
4350 *) Add various sanity checks to asn1_get_length() to reject
4351 the ASN1 length bytes if they exceed sizeof(long), will appear
4352 negative or the content length exceeds the length of the
4353 supplied buffer. (CVE-2002-0659)
4354 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4356 *) Assertions for various potential buffer overflows, not known to
4358 [Ben Laurie (CHATS)]
4360 *) Various temporary buffers to hold ASCII versions of integers were
4361 too small for 64 bit platforms. (CVE-2002-0655)
4362 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4364 *) Remote buffer overflow in SSL3 protocol - an attacker could
4365 supply an oversized session ID to a client. (CVE-2002-0656)
4366 [Ben Laurie (CHATS)]
4368 *) Remote buffer overflow in SSL2 protocol - an attacker could
4369 supply an oversized client master key. (CVE-2002-0656)
4370 [Ben Laurie (CHATS)]
4372 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4374 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4375 encoded as NULL) with id-dsa-with-sha1.
4376 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4378 *) Check various X509_...() return values in apps/req.c.
4379 [Nils Larsch <nla@trustcenter.de>]
4381 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4382 an end-of-file condition would erronously be flagged, when the CRLF
4383 was just at the end of a processed block. The bug was discovered when
4384 processing data through a buffering memory BIO handing the data to a
4385 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4386 <ptsekov@syntrex.com> and Nedelcho Stanev.
4389 *) Implement a countermeasure against a vulnerability recently found
4390 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4391 before application data chunks to avoid the use of known IVs
4392 with data potentially chosen by the attacker.
4395 *) Fix length checks in ssl3_get_client_hello().
4398 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4399 to prevent ssl3_read_internal() from incorrectly assuming that
4400 ssl3_read_bytes() found application data while handshake
4401 processing was enabled when in fact s->s3->in_read_app_data was
4402 merely automatically cleared during the initial handshake.
4403 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4405 *) Fix object definitions for Private and Enterprise: they were not
4406 recognized in their shortname (=lowercase) representation. Extend
4407 obj_dat.pl to issue an error when using undefined keywords instead
4408 of silently ignoring the problem (Svenning Sorensen
4409 <sss@sss.dnsalias.net>).
4412 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4413 generators, i.e. generators other than 2 and 5. (Previously, the
4414 code did not properly initialise the 'add' and 'rem' values to
4415 BN_generate_prime().)
4417 In the new general case, we do not insist that 'generator' is
4418 actually a primitive root: This requirement is rather pointless;
4419 a generator of the order-q subgroup is just as good, if not
4423 *) Map new X509 verification errors to alerts. Discovered and submitted by
4424 Tom Wu <tom@arcot.com>.
4427 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4428 returning non-zero before the data has been completely received
4429 when using non-blocking I/O.
4430 [Bodo Moeller; problem pointed out by John Hughes]
4432 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4433 [Ben Laurie, Lutz Jaenicke]
4435 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4436 Yoram Zahavi <YoramZ@gilian.com>).
4439 *) Add information about CygWin 1.3 and on, and preserve proper
4440 configuration for the versions before that.
4441 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4443 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4444 check whether we deal with a copy of a session and do not delete from
4445 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4446 <izhar@checkpoint.com>.
4449 *) Do not store session data into the internal session cache, if it
4450 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4451 flag is set). Proposed by Aslam <aslam@funk.com>.
4454 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4458 *) [In 0.9.6d-engine release:]
4459 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4460 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4462 *) Add the configuration target linux-s390x.
4463 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4465 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4466 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4467 variable as an indication that a ClientHello message has been
4468 received. As the flag value will be lost between multiple
4469 invocations of ssl3_accept when using non-blocking I/O, the
4470 function may not be aware that a handshake has actually taken
4471 place, thus preventing a new session from being added to the
4474 To avoid this problem, we now set s->new_session to 2 instead of
4475 using a local variable.
4476 [Lutz Jaenicke, Bodo Moeller]
4478 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4479 if the SSL_R_LENGTH_MISMATCH error is detected.
4480 [Geoff Thorpe, Bodo Moeller]
4482 *) New 'shared_ldflag' column in Configure platform table.
4485 *) Fix EVP_CIPHER_mode macro.
4486 ["Dan S. Camper" <dan@bti.net>]
4488 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4489 type, we must throw them away by setting rr->length to 0.
4490 [D P Chang <dpc@qualys.com>]
4492 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4494 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4495 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4496 worked incorrectly for those cases where range = 10..._2 and
4497 3*range is two bits longer than range.)
4500 *) Only add signing time to PKCS7 structures if it is not already
4504 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4505 OBJ_ld_ce should be OBJ_id_ce.
4506 Also some ip-pda OIDs in crypto/objects/objects.txt were
4507 incorrect (cf. RFC 3039).
4508 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4510 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4511 returns early because it has nothing to do.
4512 [Andy Schneider <andy.schneider@bjss.co.uk>]
4514 *) [In 0.9.6c-engine release:]
4515 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4516 [Andy Schneider <andy.schneider@bjss.co.uk>]
4518 *) [In 0.9.6c-engine release:]
4519 Add support for Cryptographic Appliance's keyserver technology.
4520 (Use engine 'keyclient')
4521 [Cryptographic Appliances and Geoff Thorpe]
4523 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4524 is called via tools/c89.sh because arguments have to be
4525 rearranged (all '-L' options must appear before the first object
4527 [Richard Shapiro <rshapiro@abinitio.com>]
4529 *) [In 0.9.6c-engine release:]
4530 Add support for Broadcom crypto accelerator cards, backported
4532 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4534 *) [In 0.9.6c-engine release:]
4535 Add support for SureWare crypto accelerator cards from
4536 Baltimore Technologies. (Use engine 'sureware')
4537 [Baltimore Technologies and Mark Cox]
4539 *) [In 0.9.6c-engine release:]
4540 Add support for crypto accelerator cards from Accelerated
4541 Encryption Processing, www.aep.ie. (Use engine 'aep')
4542 [AEP Inc. and Mark Cox]
4544 *) Add a configuration entry for gcc on UnixWare.
4545 [Gary Benson <gbenson@redhat.com>]
4547 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
4548 messages are stored in a single piece (fixed-length part and
4549 variable-length part combined) and fix various bugs found on the way.
4552 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
4553 instead. BIO_gethostbyname() does not know what timeouts are
4554 appropriate, so entries would stay in cache even when they have
4556 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
4558 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
4559 faced with a pathologically small ClientHello fragment that does
4560 not contain client_version: Instead of aborting with an error,
4561 simply choose the highest available protocol version (i.e.,
4562 TLS 1.0 unless it is disabled). In practice, ClientHello
4563 messages are never sent like this, but this change gives us
4564 strictly correct behaviour at least for TLS.
4567 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
4568 never resets s->method to s->ctx->method when called from within
4569 one of the SSL handshake functions.
4570 [Bodo Moeller; problem pointed out by Niko Baric]
4572 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
4573 (sent using the client's version number) if client_version is
4574 smaller than the protocol version in use. Also change
4575 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
4576 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
4577 the client will at least see that alert.
4580 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
4584 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
4585 client receives HelloRequest while in a handshake.
4586 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
4588 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
4589 should end in 'break', not 'goto end' which circuments various
4590 cleanups done in state SSL_ST_OK. But session related stuff
4591 must be disabled for SSL_ST_OK in the case that we just sent a
4594 Also avoid some overhead by not calling ssl_init_wbio_buffer()
4595 before just sending a HelloRequest.
4596 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
4598 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
4599 reveal whether illegal block cipher padding was found or a MAC
4600 verification error occured. (Neither SSLerr() codes nor alerts
4601 are directly visible to potential attackers, but the information
4602 may leak via logfiles.)
4604 Similar changes are not required for the SSL 2.0 implementation
4605 because the number of padding bytes is sent in clear for SSL 2.0,
4606 and the extra bytes are just ignored. However ssl/s2_pkt.c
4607 failed to verify that the purported number of padding bytes is in
4611 *) Add OpenUNIX-8 support including shared libraries
4612 (Boyd Lynn Gerber <gerberb@zenez.com>).
4615 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
4616 'wristwatch attack' using huge encoding parameters (cf.
4617 James H. Manger's CRYPTO 2001 paper). Note that the
4618 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
4619 encoding parameters and hence was not vulnerable.
4622 *) BN_sqr() bug fix.
4623 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
4625 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
4626 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
4627 followed by modular reduction.
4628 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
4630 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
4631 equivalent based on BN_pseudo_rand() instead of BN_rand().
4634 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4635 This function was broken, as the check for a new client hello message
4636 to handle SGC did not allow these large messages.
4637 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4640 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4643 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4644 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4647 *) Rework the configuration and shared library support for Tru64 Unix.
4648 The configuration part makes use of modern compiler features and
4649 still retains old compiler behavior for those that run older versions
4650 of the OS. The shared library support part includes a variant that
4651 uses the RPATH feature, and is available through the special
4652 configuration target "alpha-cc-rpath", which will never be selected
4654 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4656 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4657 with the same message size as in ssl3_get_certificate_request().
4658 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4659 messages might inadvertently be reject as too long.
4660 [Petr Lampa <lampa@fee.vutbr.cz>]
4662 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4665 *) Modified SSL library such that the verify_callback that has been set
4666 specificly for an SSL object with SSL_set_verify() is actually being
4667 used. Before the change, a verify_callback set with this function was
4668 ignored and the verify_callback() set in the SSL_CTX at the time of
4669 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4670 to allow the necessary settings.
4673 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4674 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4675 done automatically (in contradiction to the requirements of the C
4676 standard). This made problems when used from OpenSSH.
4679 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4680 dh->length and always used
4682 BN_rand_range(priv_key, dh->p).
4684 BN_rand_range() is not necessary for Diffie-Hellman, and this
4685 specific range makes Diffie-Hellman unnecessarily inefficient if
4686 dh->length (recommended exponent length) is much smaller than the
4687 length of dh->p. We could use BN_rand_range() if the order of
4688 the subgroup was stored in the DH structure, but we only have
4693 BN_rand(priv_key, l, ...)
4695 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4701 RSA_eay_public_encrypt
4702 RSA_eay_private_decrypt
4703 RSA_eay_private_encrypt (signing)
4704 RSA_eay_public_decrypt (signature verification)
4706 (default implementations for RSA_public_encrypt,
4707 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4708 always reject numbers >= n.
4711 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4712 to synchronize access to 'locking_thread'. This is necessary on
4713 systems where access to 'locking_thread' (an 'unsigned long'
4714 variable) is not atomic.
4717 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4718 *before* setting the 'crypto_lock_rand' flag. The previous code had
4719 a race condition if 0 is a valid thread ID.
4720 [Travis Vitek <vitek@roguewave.com>]
4722 *) Add support for shared libraries under Irix.
4723 [Albert Chin-A-Young <china@thewrittenword.com>]
4725 *) Add configuration option to build on Linux on both big-endian and
4727 [Ralf Baechle <ralf@uni-koblenz.de>]
4729 *) Add the possibility to create shared libraries on HP-UX.
4732 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4734 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4735 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4736 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4737 PRNG state recovery was possible based on the output of
4738 one PRNG request appropriately sized to gain knowledge on
4739 'md' followed by enough consecutive 1-byte PRNG requests
4740 to traverse all of 'state'.
4742 1. When updating 'md_local' (the current thread's copy of 'md')
4743 during PRNG output generation, hash all of the previous
4744 'md_local' value, not just the half used for PRNG output.
4746 2. Make the number of bytes from 'state' included into the hash
4747 independent from the number of PRNG bytes requested.
4749 The first measure alone would be sufficient to avoid
4750 Markku-Juhani's attack. (Actually it had never occurred
4751 to me that the half of 'md_local' used for chaining was the
4752 half from which PRNG output bytes were taken -- I had always
4753 assumed that the secret half would be used.) The second
4754 measure makes sure that additional data from 'state' is never
4755 mixed into 'md_local' in small portions; this heuristically
4756 further strengthens the PRNG.
4759 *) Fix crypto/bn/asm/mips3.s.
4762 *) When only the key is given to "enc", the IV is undefined. Print out
4763 an error message in this case.
4766 *) Handle special case when X509_NAME is empty in X509 printing routines.
4769 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4770 positive and less than q.
4773 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4774 used: it isn't thread safe and the add_lock_callback should handle
4776 [Paul Rose <Paul.Rose@bridge.com>]
4778 *) Verify that incoming data obeys the block size in
4779 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4783 [Ulf Möller, Bodo Möller]
4785 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4786 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4787 when fixing the server behaviour for backwards-compatible 'client
4788 hello' messages. (Note that the attack is impractical against
4789 SSL 3.0 and TLS 1.0 anyway because length and version checking
4790 means that the probability of guessing a valid ciphertext is
4791 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4794 Before 0.9.5, the countermeasure (hide the error by generating a
4795 random 'decryption result') did not work properly because
4796 ERR_clear_error() was missing, meaning that SSL_get_error() would
4797 detect the supposedly ignored error.
4799 Both problems are now fixed.
4802 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4803 (previously it was 1024).
4806 *) Fix for compatibility mode trust settings: ignore trust settings
4807 unless some valid trust or reject settings are present.
4810 *) Fix for blowfish EVP: its a variable length cipher.
4813 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4814 parameters in DSA public key structures and return an error in the
4815 DSA routines if parameters are absent.
4818 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4819 in the current directory if neither $RANDFILE nor $HOME was set.
4820 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4821 caused some confusion to Windows users who haven't defined $HOME.
4822 Thus RAND_file_name() is changed again: e_os.h can define a
4823 DEFAULT_HOME, which will be used if $HOME is not set.
4824 For Windows, we use "C:"; on other platforms, we still require
4825 environment variables.
4827 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4828 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4829 having multiple threads call RAND_poll() concurrently.
4832 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4833 combination of a flag and a thread ID variable.
4834 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4835 flag), *other* threads can enter ssleay_add_bytes without obeying
4836 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4837 that they do not hold after the first thread unsets add_do_not_lock).
4840 *) Change bctest again: '-x' expressions are not available in all
4844 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4846 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4847 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4849 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4850 the default extension for executables, if any. Also, make the perl
4851 scripts that use symlink() to test if it really exists and use "cp"
4852 if it doesn't. All this made OpenSSL compilable and installable in
4856 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4857 If SEQUENCE is length is indefinite just set c->slen to the total
4858 amount of data available.
4859 [Steve Henson, reported by shige@FreeBSD.org]
4860 [This change does not apply to 0.9.7.]
4862 *) Change bctest to avoid here-documents inside command substitution
4863 (workaround for FreeBSD /bin/sh bug).
4864 For compatibility with Ultrix, avoid shell functions (introduced
4865 in the bctest version that searches along $PATH).
4868 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4869 with des_encrypt() defined on some operating systems, like Solaris
4873 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4874 On the Importance of Eliminating Errors in Cryptographic
4875 Computations, J. Cryptology 14 (2001) 2, 101-119,
4876 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4879 *) MIPS assembler BIGNUM division bug fix.
4882 *) Disabled incorrect Alpha assembler code.
4885 *) Fix PKCS#7 decode routines so they correctly update the length
4886 after reading an EOC for the EXPLICIT tag.
4888 [This change does not apply to 0.9.7.]
4890 *) Fix bug in PKCS#12 key generation routines. This was triggered
4891 if a 3DES key was generated with a 0 initial byte. Include
4892 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4893 (but broken) behaviour.
4896 *) Enhance bctest to search for a working bc along $PATH and print
4898 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4900 *) Fix memory leaks in err.c: free err_data string if necessary;
4901 don't write to the wrong index in ERR_set_error_data.
4904 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4908 *) Replace rdtsc with _emit statements for VC++ version 5.
4909 [Jeremy Cooper <jeremy@baymoo.org>]
4911 *) Make it possible to reuse SSLv2 sessions.
4914 *) In copy_email() check for >= 0 as a return value for
4915 X509_NAME_get_index_by_NID() since 0 is a valid index.
4916 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4918 *) Avoid coredump with unsupported or invalid public keys by checking if
4919 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4920 PKCS7_verify() fails with non detached data.
4923 *) Don't use getenv in library functions when run as setuid/setgid.
4924 New function OPENSSL_issetugid().
4927 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4928 due to incorrect handling of multi-threading:
4930 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4932 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4934 3. Count how many times MemCheck_off() has been called so that
4935 nested use can be treated correctly. This also avoids
4936 inband-signalling in the previous code (which relied on the
4937 assumption that thread ID 0 is impossible).
4940 *) Add "-rand" option also to s_client and s_server.
4943 *) Fix CPU detection on Irix 6.x.
4944 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4945 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4947 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4950 [This change does not apply to 0.9.7.]
4952 *) Use the cached encoding of an X509_NAME structure rather than
4953 copying it. This is apparently the reason for the libsafe "errors"
4954 but the code is actually correct.
4957 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4958 Bleichenbacher's DSA attack.
4959 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4960 to be set and top=0 forces the highest bit to be set; top=-1 is new
4961 and leaves the highest bit random.
4962 [Ulf Moeller, Bodo Moeller]
4964 *) In the NCONF_...-based implementations for CONF_... queries
4965 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4966 a temporary CONF structure with the data component set to NULL
4967 (which gives segmentation faults in lh_retrieve).
4968 Instead, use NULL for the CONF pointer in CONF_get_string and
4969 CONF_get_number (which may use environment variables) and directly
4970 return NULL from CONF_get_section.
4973 *) Fix potential buffer overrun for EBCDIC.
4976 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4977 keyUsage if basicConstraints absent for a CA.
4980 *) Make SMIME_write_PKCS7() write mail header values with a format that
4981 is more generally accepted (no spaces before the semicolon), since
4982 some programs can't parse those values properly otherwise. Also make
4983 sure BIO's that break lines after each write do not create invalid
4987 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4988 macros previously used would not encode an empty SEQUENCE OF
4989 and break the signature.
4991 [This change does not apply to 0.9.7.]
4993 *) Zero the premaster secret after deriving the master secret in
4997 *) Add some EVP_add_digest_alias registrations (as found in
4998 OpenSSL_add_all_digests()) to SSL_library_init()
4999 aka OpenSSL_add_ssl_algorithms(). This provides improved
5000 compatibility with peers using X.509 certificates
5001 with unconventional AlgorithmIdentifier OIDs.
5004 *) Fix for Irix with NO_ASM.
5005 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5007 *) ./config script fixes.
5008 [Ulf Moeller, Richard Levitte]
5010 *) Fix 'openssl passwd -1'.
5013 *) Change PKCS12_key_gen_asc() so it can cope with non null
5014 terminated strings whose length is passed in the passlen
5015 parameter, for example from PEM callbacks. This was done
5016 by adding an extra length parameter to asc2uni().
5017 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5019 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5020 call failed, free the DSA structure.
5023 *) Fix to uni2asc() to cope with zero length Unicode strings.
5024 These are present in some PKCS#12 files.
5027 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5028 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5029 when writing a 32767 byte record.
5030 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5032 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5033 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5035 (RSA objects have a reference count access to which is protected
5036 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5037 so they are meant to be shared between threads.)
5038 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5039 "Reddie, Steven" <Steven.Reddie@ca.com>]
5041 *) Fix a deadlock in CRYPTO_mem_leaks().
5044 *) Use better test patterns in bntest.
5047 *) rand_win.c fix for Borland C.
5050 *) BN_rshift bugfix for n == 0.
5053 *) Add a 'bctest' script that checks for some known 'bc' bugs
5054 so that 'make test' does not abort just because 'bc' is broken.
5057 *) Store verify_result within SSL_SESSION also for client side to
5058 avoid potential security hole. (Re-used sessions on the client side
5059 always resulted in verify_result==X509_V_OK, not using the original
5060 result of the server certificate verification.)
5063 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5064 SSL3_RT_APPLICATION_DATA, return 0.
5065 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5069 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5070 releases, have been re-implemented by renaming the previous
5071 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5072 and ssl3_read_internal, respectively, and adding 'peek' parameters
5073 to them. The new ssl[23]_{read,peek} functions are calls to
5074 ssl[23]_read_internal with the 'peek' flag set appropriately.
5075 A 'peek' parameter has also been added to ssl3_read_bytes, which
5076 does the actual work for ssl3_read_internal.
5079 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5080 the method-specific "init()" handler. Also clean up ex_data after
5081 calling the method-specific "finish()" handler. Previously, this was
5082 happening the other way round.
5085 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5086 The previous value, 12, was not always sufficient for BN_mod_exp().
5089 *) Make sure that shared libraries get the internal name engine with
5090 the full version number and not just 0. This should mark the
5091 shared libraries as not backward compatible. Of course, this should
5092 be changed again when we can guarantee backward binary compatibility.
5095 *) Fix typo in get_cert_by_subject() in by_dir.c
5096 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5098 *) Rework the system to generate shared libraries:
5100 - Make note of the expected extension for the shared libraries and
5101 if there is a need for symbolic links from for example libcrypto.so.0
5102 to libcrypto.so.0.9.7. There is extended info in Configure for
5105 - Make as few rebuilds of the shared libraries as possible.
5107 - Still avoid linking the OpenSSL programs with the shared libraries.
5109 - When installing, install the shared libraries separately from the
5113 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5115 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5116 and not in SSL_clear because the latter is also used by the
5117 accept/connect functions; previously, the settings made by
5118 SSL_set_read_ahead would be lost during the handshake.
5119 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5121 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5122 Previously, it would create entries for disableed algorithms no
5126 *) Added several new manual pages for SSL_* function.
5129 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5131 *) In ssl23_get_client_hello, generate an error message when faced
5132 with an initial SSL 3.0/TLS record that is too small to contain the
5133 first two bytes of the ClientHello message, i.e. client_version.
5134 (Note that this is a pathologic case that probably has never happened
5135 in real life.) The previous approach was to use the version number
5136 from the record header as a substitute; but our protocol choice
5137 should not depend on that one because it is not authenticated
5138 by the Finished messages.
5141 *) More robust randomness gathering functions for Windows.
5142 [Jeffrey Altman <jaltman@columbia.edu>]
5144 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5145 not set then we don't setup the error code for issuer check errors
5146 to avoid possibly overwriting other errors which the callback does
5147 handle. If an application does set the flag then we assume it knows
5148 what it is doing and can handle the new informational codes
5152 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5153 a general "ANY" type, as such it should be able to decode anything
5154 including tagged types. However it didn't check the class so it would
5155 wrongly interpret tagged types in the same way as their universal
5156 counterpart and unknown types were just rejected. Changed so that the
5157 tagged and unknown types are handled in the same way as a SEQUENCE:
5158 that is the encoding is stored intact. There is also a new type
5159 "V_ASN1_OTHER" which is used when the class is not universal, in this
5160 case we have no idea what the actual type is so we just lump them all
5164 *) On VMS, stdout may very well lead to a file that is written to
5165 in a record-oriented fashion. That means that every write() will
5166 write a separate record, which will be read separately by the
5167 programs trying to read from it. This can be very confusing.
5169 The solution is to put a BIO filter in the way that will buffer
5170 text until a linefeed is reached, and then write everything a
5171 line at a time, so every record written will be an actual line,
5172 not chunks of lines and not (usually doesn't happen, but I've
5173 seen it once) several lines in one record. BIO_f_linebuffer() is
5176 Currently, it's a VMS-only method, because that's where it has
5177 been tested well enough.
5180 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5181 it can return incorrect results.
5182 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5183 but it was in 0.9.6-beta[12].)
5186 *) Disable the check for content being present when verifying detached
5187 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5188 include zero length content when signing messages.
5191 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5192 BIO_ctrl (for BIO pairs).
5195 *) Add DSO method for VMS.
5198 *) Bug fix: Montgomery multiplication could produce results with the
5202 *) Add RPM specification openssl.spec and modify it to build three
5203 packages. The default package contains applications, application
5204 documentation and run-time libraries. The devel package contains
5205 include files, static libraries and function documentation. The
5206 doc package contains the contents of the doc directory. The original
5207 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5210 *) Add a large number of documentation files for many SSL routines.
5211 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5213 *) Add a configuration entry for Sony News 4.
5214 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5216 *) Don't set the two most significant bits to one when generating a
5217 random number < q in the DSA library.
5220 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5221 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5222 the underlying transport is blocking) if a handshake took place.
5223 (The default behaviour is needed by applications such as s_client
5224 and s_server that use select() to determine when to use SSL_read;
5225 but for applications that know in advance when to expect data, it
5226 just makes things more complicated.)
5229 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5233 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5234 work better on such systems.
5235 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5237 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5238 Update PKCS12_parse() so it copies the friendlyName and the
5239 keyid to the certificates aux info.
5242 *) Fix bug in PKCS7_verify() which caused an infinite loop
5243 if there was more than one signature.
5244 [Sven Uszpelkat <su@celocom.de>]
5246 *) Major change in util/mkdef.pl to include extra information
5247 about each symbol, as well as presentig variables as well
5248 as functions. This change means that there's n more need
5249 to rebuild the .num files when some algorithms are excluded.
5252 *) Allow the verify time to be set by an application,
5253 rather than always using the current time.
5256 *) Phase 2 verify code reorganisation. The certificate
5257 verify code now looks up an issuer certificate by a
5258 number of criteria: subject name, authority key id
5259 and key usage. It also verifies self signed certificates
5260 by the same criteria. The main comparison function is
5261 X509_check_issued() which performs these checks.
5263 Lot of changes were necessary in order to support this
5264 without completely rewriting the lookup code.
5266 Authority and subject key identifier are now cached.
5268 The LHASH 'certs' is X509_STORE has now been replaced
5269 by a STACK_OF(X509_OBJECT). This is mainly because an
5270 LHASH can't store or retrieve multiple objects with
5271 the same hash value.
5273 As a result various functions (which were all internal
5274 use only) have changed to handle the new X509_STORE
5275 structure. This will break anything that messed round
5276 with X509_STORE internally.
5278 The functions X509_STORE_add_cert() now checks for an
5279 exact match, rather than just subject name.
5281 The X509_STORE API doesn't directly support the retrieval
5282 of multiple certificates matching a given criteria, however
5283 this can be worked round by performing a lookup first
5284 (which will fill the cache with candidate certificates)
5285 and then examining the cache for matches. This is probably
5286 the best we can do without throwing out X509_LOOKUP
5287 entirely (maybe later...).
5289 The X509_VERIFY_CTX structure has been enhanced considerably.
5291 All certificate lookup operations now go via a get_issuer()
5292 callback. Although this currently uses an X509_STORE it
5293 can be replaced by custom lookups. This is a simple way
5294 to bypass the X509_STORE hackery necessary to make this
5295 work and makes it possible to use more efficient techniques
5296 in future. A very simple version which uses a simple
5297 STACK for its trusted certificate store is also provided
5298 using X509_STORE_CTX_trusted_stack().
5300 The verify_cb() and verify() callbacks now have equivalents
5301 in the X509_STORE_CTX structure.
5303 X509_STORE_CTX also has a 'flags' field which can be used
5304 to customise the verify behaviour.
5307 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5308 excludes S/MIME capabilities.
5311 *) When a certificate request is read in keep a copy of the
5312 original encoding of the signed data and use it when outputing
5313 again. Signatures then use the original encoding rather than
5314 a decoded, encoded version which may cause problems if the
5315 request is improperly encoded.
5318 *) For consistency with other BIO_puts implementations, call
5319 buffer_write(b, ...) directly in buffer_puts instead of calling
5322 In BIO_puts, increment b->num_write as in BIO_write.
5323 [Peter.Sylvester@EdelWeb.fr]
5325 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5326 BN_zero, we may not return a BIGNUM with an array consisting of
5330 *) Avoid calling abort() from within the library when problems are
5331 detected, except if preprocessor symbols have been defined
5332 (such as REF_CHECK, BN_DEBUG etc.).
5335 *) New openssl application 'rsautl'. This utility can be
5336 used for low level RSA operations. DER public key
5337 BIO/fp routines also added.
5340 *) New Configure entry and patches for compiling on QNX 4.
5341 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5343 *) A demo state-machine implementation was sponsored by
5344 Nuron (http://www.nuron.com/) and is now available in
5345 demos/state_machine.
5348 *) New options added to the 'dgst' utility for signature
5349 generation and verification.
5352 *) Unrecognized PKCS#7 content types are now handled via a
5353 catch all ASN1_TYPE structure. This allows unsupported
5354 types to be stored as a "blob" and an application can
5355 encode and decode it manually.
5358 *) Fix various signed/unsigned issues to make a_strex.c
5360 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5362 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5363 length if passed a buffer. ASN1_INTEGER_to_BN failed
5364 if passed a NULL BN and its argument was negative.
5365 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5367 *) Modification to PKCS#7 encoding routines to output definite
5368 length encoding. Since currently the whole structures are in
5369 memory there's not real point in using indefinite length
5370 constructed encoding. However if OpenSSL is compiled with
5371 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5374 *) Added BIO_vprintf() and BIO_vsnprintf().
5377 *) Added more prefixes to parse for in the the strings written
5378 through a logging bio, to cover all the levels that are available
5379 through syslog. The prefixes are now:
5381 PANIC, EMERG, EMR => LOG_EMERG
5382 ALERT, ALR => LOG_ALERT
5383 CRIT, CRI => LOG_CRIT
5384 ERROR, ERR => LOG_ERR
5385 WARNING, WARN, WAR => LOG_WARNING
5386 NOTICE, NOTE, NOT => LOG_NOTICE
5387 INFO, INF => LOG_INFO
5388 DEBUG, DBG => LOG_DEBUG
5390 and as before, if none of those prefixes are present at the
5391 beginning of the string, LOG_ERR is chosen.
5393 On Win32, the LOG_* levels are mapped according to this:
5395 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5396 LOG_WARNING => EVENTLOG_WARNING_TYPE
5397 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5401 *) Made it possible to reconfigure with just the configuration
5402 argument "reconf" or "reconfigure". The command line arguments
5403 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5404 and are retrieved from there when reconfiguring.
5408 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5410 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5413 *) The obj_dat.pl script was messing up the sorting of object
5414 names. The reason was that it compared the quoted version
5415 of strings as a result "OCSP" > "OCSP Signing" because
5416 " > SPACE. Changed script to store unquoted versions of
5417 names and add quotes on output. It was also omitting some
5418 names from the lookup table if they were given a default
5419 value (that is if SN is missing it is given the same
5420 value as LN and vice versa), these are now added on the
5421 grounds that if an object has a name we should be able to
5422 look it up. Finally added warning output when duplicate
5423 short or long names are found.
5426 *) Changes needed for Tandem NSK.
5427 [Scott Uroff <scott@xypro.com>]
5429 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5430 RSA_padding_check_SSLv23(), special padding was never detected
5431 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5432 version rollback attacks was not effective.
5434 In s23_clnt.c, don't use special rollback-attack detection padding
5435 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5436 client; similarly, in s23_srvr.c, don't do the rollback check if
5437 SSL 2.0 is the only protocol enabled in the server.
5440 *) Make it possible to get hexdumps of unprintable data with 'openssl
5441 asn1parse'. By implication, the functions ASN1_parse_dump() and
5442 BIO_dump_indent() are added.
5445 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5446 these print out strings and name structures based on various
5447 flags including RFC2253 support and proper handling of
5448 multibyte characters. Added options to the 'x509' utility
5449 to allow the various flags to be set.
5452 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5453 Also change the functions X509_cmp_current_time() and
5454 X509_gmtime_adj() work with an ASN1_TIME structure,
5455 this will enable certificates using GeneralizedTime in validity
5456 dates to be checked.
5459 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5460 negative public key encodings) on by default,
5461 NO_NEG_PUBKEY_BUG can be set to disable it.
5464 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5465 content octets. An i2c_ASN1_OBJECT is unnecessary because
5466 the encoding can be trivially obtained from the structure.
5469 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5470 not read locks (CRYPTO_r_[un]lock).
5473 *) A first attempt at creating official support for shared
5474 libraries through configuration. I've kept it so the
5475 default is static libraries only, and the OpenSSL programs
5476 are always statically linked for now, but there are
5477 preparations for dynamic linking in place.
5478 This has been tested on Linux and Tru64.
5481 *) Randomness polling function for Win9x, as described in:
5482 Peter Gutmann, Software Generation of Practically Strong
5486 *) Fix so PRNG is seeded in req if using an already existing
5490 *) New options to smime application. -inform and -outform
5491 allow alternative formats for the S/MIME message including
5492 PEM and DER. The -content option allows the content to be
5493 specified separately. This should allow things like Netscape
5494 form signing output easier to verify.
5497 *) Fix the ASN1 encoding of tags using the 'long form'.
5500 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5501 STRING types. These convert content octets to and from the
5502 underlying type. The actual tag and length octets are
5503 already assumed to have been read in and checked. These
5504 are needed because all other string types have virtually
5505 identical handling apart from the tag. By having versions
5506 of the ASN1 functions that just operate on content octets
5507 IMPLICIT tagging can be handled properly. It also allows
5508 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5509 and ASN1_INTEGER are identical apart from the tag.
5512 *) Change the handling of OID objects as follows:
5514 - New object identifiers are inserted in objects.txt, following
5515 the syntax given in objects.README.
5516 - objects.pl is used to process obj_mac.num and create a new
5518 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5521 This is currently kind of a hack, and the perl code in objects.pl
5522 isn't very elegant, but it works as I intended. The simplest way
5523 to check that it worked correctly is to look in obj_dat.h and
5524 check the array nid_objs and make sure the objects haven't moved
5525 around (this is important!). Additions are OK, as well as
5526 consistent name changes.
5529 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5532 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5533 The given file adds to whatever has already been seeded into the
5534 random pool through the RANDFILE configuration file option or
5535 environment variable, or the default random state file.
5538 *) mkstack.pl now sorts each macro group into lexical order.
5539 Previously the output order depended on the order the files
5540 appeared in the directory, resulting in needless rewriting
5544 *) Patches to make OpenSSL compile under Win32 again. Mostly
5545 work arounds for the VC++ problem that it treats func() as
5546 func(void). Also stripped out the parts of mkdef.pl that
5547 added extra typesafe functions: these no longer exist.
5550 *) Reorganisation of the stack code. The macros are now all
5551 collected in safestack.h . Each macro is defined in terms of
5552 a "stack macro" of the form SKM_<name>(type, a, b). The
5553 DEBUG_SAFESTACK is now handled in terms of function casts,
5554 this has the advantage of retaining type safety without the
5555 use of additional functions. If DEBUG_SAFESTACK is not defined
5556 then the non typesafe macros are used instead. Also modified the
5557 mkstack.pl script to handle the new form. Needs testing to see
5558 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
5559 the default if no major problems. Similar behaviour for ASN1_SET_OF
5560 and PKCS12_STACK_OF.
5563 *) When some versions of IIS use the 'NET' form of private key the
5564 key derivation algorithm is different. Normally MD5(password) is
5565 used as a 128 bit RC4 key. In the modified case
5566 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
5567 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
5568 as the old Netscape_RSA functions except they have an additional
5569 'sgckey' parameter which uses the modified algorithm. Also added
5570 an -sgckey command line option to the rsa utility. Thanks to
5571 Adrian Peck <bertie@ncipher.com> for posting details of the modified
5572 algorithm to openssl-dev.
5575 *) The evp_local.h macros were using 'c.##kname' which resulted in
5576 invalid expansion on some systems (SCO 5.0.5 for example).
5577 Corrected to 'c.kname'.
5578 [Phillip Porch <root@theporch.com>]
5580 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
5581 a STACK of email addresses from a certificate or request, these look
5582 in the subject name and the subject alternative name extensions and
5583 omit any duplicate addresses.
5586 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
5587 This makes DSA verification about 2 % faster.
5590 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
5591 (meaning that now 2^5 values will be precomputed, which is only 4 KB
5592 plus overhead for 1024 bit moduli).
5593 This makes exponentiations about 0.5 % faster for 1024 bit
5594 exponents (as measured by "openssl speed rsa2048").
5597 *) Rename memory handling macros to avoid conflicts with other
5599 Malloc => OPENSSL_malloc
5600 Malloc_locked => OPENSSL_malloc_locked
5601 Realloc => OPENSSL_realloc
5602 Free => OPENSSL_free
5605 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
5606 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
5609 *) CygWin32 support.
5610 [John Jarvie <jjarvie@newsguy.com>]
5612 *) The type-safe stack code has been rejigged. It is now only compiled
5613 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
5614 by default all type-specific stack functions are "#define"d back to
5615 standard stack functions. This results in more streamlined output
5616 but retains the type-safety checking possibilities of the original
5620 *) The STACK code has been cleaned up, and certain type declarations
5621 that didn't make a lot of sense have been brought in line. This has
5622 also involved a cleanup of sorts in safestack.h to more correctly
5623 map type-safe stack functions onto their plain stack counterparts.
5624 This work has also resulted in a variety of "const"ifications of
5625 lots of the code, especially "_cmp" operations which should normally
5626 be prototyped with "const" parameters anyway.
5629 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
5630 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
5631 (The PRNG state consists of two parts, the large pool 'state' and 'md',
5632 where all of 'md' is used each time the PRNG is used, but 'state'
5633 is used only indexed by a cyclic counter. As entropy may not be
5634 well distributed from the beginning, 'md' is important as a
5635 chaining variable. However, the output function chains only half
5636 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5637 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5638 in all of 'state' being rewritten, with the new values depending
5639 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5642 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5643 the handshake is continued after ssl_verify_cert_chain();
5644 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5645 can lead to 'unexplainable' connection aborts later.
5646 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5648 *) Major EVP API cipher revision.
5649 Add hooks for extra EVP features. This allows various cipher
5650 parameters to be set in the EVP interface. Support added for variable
5651 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5652 setting of RC2 and RC5 parameters.
5654 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5657 Remove lots of duplicated code from the EVP library. For example *every*
5658 cipher init() function handles the 'iv' in the same way according to the
5659 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5660 for CFB and OFB modes they zero ctx->num.
5662 New functionality allows removal of S/MIME code RC2 hack.
5664 Most of the routines have the same form and so can be declared in terms
5667 By shifting this to the top level EVP_CipherInit() it can be removed from
5668 all individual ciphers. If the cipher wants to handle IVs or keys
5669 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5672 Change lots of functions like EVP_EncryptUpdate() to now return a
5673 value: although software versions of the algorithms cannot fail
5674 any installed hardware versions can.
5677 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5678 this option is set, tolerate broken clients that send the negotiated
5679 protocol version number instead of the requested protocol version
5683 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5684 i.e. non-zero for export ciphersuites, zero otherwise.
5685 Previous versions had this flag inverted, inconsistent with
5686 rsa_tmp_cb (..._TMP_RSA_CB).
5687 [Bodo Moeller; problem reported by Amit Chopra]
5689 *) Add missing DSA library text string. Work around for some IIS
5690 key files with invalid SEQUENCE encoding.
5693 *) Add a document (doc/standards.txt) that list all kinds of standards
5694 and so on that are implemented in OpenSSL.
5697 *) Enhance c_rehash script. Old version would mishandle certificates
5698 with the same subject name hash and wouldn't handle CRLs at all.
5699 Added -fingerprint option to crl utility, to support new c_rehash
5703 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5706 *) Fix for SSL server purpose checking. Server checking was
5707 rejecting certificates which had extended key usage present
5708 but no ssl client purpose.
5709 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5711 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5712 is a little unclear about how a blank password is handled.
5713 Since the password in encoded as a BMPString with terminating
5714 double NULL a zero length password would end up as just the
5715 double NULL. However no password at all is different and is
5716 handled differently in the PKCS#12 key generation code. NS
5717 treats a blank password as zero length. MSIE treats it as no
5718 password on export: but it will try both on import. We now do
5719 the same: PKCS12_parse() tries zero length and no password if
5720 the password is set to "" or NULL (NULL is now a valid password:
5721 it wasn't before) as does the pkcs12 application.
5724 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5725 perror when PEM_read_bio_X509_REQ fails, the error message must
5726 be obtained from the error queue.
5729 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5730 it in ERR_remove_state if appropriate, and change ERR_get_state
5731 accordingly to avoid race conditions (this is necessary because
5732 thread_hash is no longer constant once set).
5735 *) Bugfix for linux-elf makefile.one.
5738 *) RSA_get_default_method() will now cause a default
5739 RSA_METHOD to be chosen if one doesn't exist already.
5740 Previously this was only set during a call to RSA_new()
5741 or RSA_new_method(NULL) meaning it was possible for
5742 RSA_get_default_method() to return NULL.
5745 *) Added native name translation to the existing DSO code
5746 that will convert (if the flag to do so is set) filenames
5747 that are sufficiently small and have no path information
5748 into a canonical native form. Eg. "blah" converted to
5749 "libblah.so" or "blah.dll" etc.
5752 *) New function ERR_error_string_n(e, buf, len) which is like
5753 ERR_error_string(e, buf), but writes at most 'len' bytes
5754 including the 0 terminator. For ERR_error_string_n, 'buf'
5756 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5758 *) CONF library reworked to become more general. A new CONF
5759 configuration file reader "class" is implemented as well as a
5760 new functions (NCONF_*, for "New CONF") to handle it. The now
5761 old CONF_* functions are still there, but are reimplemented to
5762 work in terms of the new functions. Also, a set of functions
5763 to handle the internal storage of the configuration data is
5764 provided to make it easier to write new configuration file
5765 reader "classes" (I can definitely see something reading a
5766 configuration file in XML format, for example), called _CONF_*,
5767 or "the configuration storage API"...
5769 The new configuration file reading functions are:
5771 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5772 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5774 NCONF_default, NCONF_WIN32
5776 NCONF_dump_fp, NCONF_dump_bio
5778 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5779 NCONF_new creates a new CONF object. This works in the same way
5780 as other interfaces in OpenSSL, like the BIO interface.
5781 NCONF_dump_* dump the internal storage of the configuration file,
5782 which is useful for debugging. All other functions take the same
5783 arguments as the old CONF_* functions wth the exception of the
5784 first that must be a `CONF *' instead of a `LHASH *'.
5786 To make it easer to use the new classes with the old CONF_* functions,
5787 the function CONF_set_default_method is provided.
5790 *) Add '-tls1' option to 'openssl ciphers', which was already
5791 mentioned in the documentation but had not been implemented.
5792 (This option is not yet really useful because even the additional
5793 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5796 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5797 OpenSSL-based applications) load shared libraries and bind to
5798 them in a portable way.
5799 [Geoff Thorpe, with contributions from Richard Levitte]
5801 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5803 *) Make sure _lrotl and _lrotr are only used with MSVC.
5805 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5806 (the default implementation of RAND_status).
5808 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5809 to '-clrext' (= clear extensions), as intended and documented.
5810 [Bodo Moeller; inconsistency pointed out by Michael Attili
5813 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5814 was larger than the MD block size.
5815 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5817 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5818 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5819 using the passed key: if the passed key was a private key the result
5820 of X509_print(), for example, would be to print out all the private key
5824 *) des_quad_cksum() byte order bug fix.
5825 [Ulf Möller, using the problem description in krb4-0.9.7, where
5826 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5828 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5830 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5832 *) For easily testing in shell scripts whether some command
5833 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5834 returns with exit code 0 iff no command of the given name is available.
5835 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5836 the output goes to stdout and nothing is printed to stderr.
5837 Additional arguments are always ignored.
5839 Since for each cipher there is a command of the same name,
5840 the 'no-cipher' compilation switches can be tested this way.
5842 ('openssl no-XXX' is not able to detect pseudo-commands such
5843 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5846 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5849 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5850 is set; it will be thrown away anyway because each handshake creates
5852 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5853 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5854 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5855 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5858 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5859 'Q' and 'R' lose their special meanings (quit/renegotiate).
5860 This is part of what -quiet does; unlike -quiet, -ign_eof
5861 does not suppress any output.
5864 *) Add compatibility options to the purpose and trust code. The
5865 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5866 accepts a certificate or CA, this was the previous behaviour,
5867 with all the associated security issues.
5869 X509_TRUST_COMPAT is the old trust behaviour: only and
5870 automatically trust self signed roots in certificate store. A
5871 new trust setting X509_TRUST_DEFAULT is used to specify that
5872 a purpose has no associated trust setting and it should instead
5873 use the value in the default purpose.
5876 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5877 and fix a memory leak.
5880 *) In util/mkerr.pl (which implements 'make errors'), preserve
5881 reason strings from the previous version of the .c file, as
5882 the default to have only downcase letters (and digits) in
5883 automatically generated reasons codes is not always appropriate.
5886 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5887 using strerror. Previously, ERR_reason_error_string() returned
5888 library names as reason strings for SYSerr; but SYSerr is a special
5889 case where small numbers are errno values, not library numbers.
5892 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5893 converts DSA parameters into DH parameters. (When creating parameters,
5894 DSA_generate_parameters is used.)
5897 *) Include 'length' (recommended exponent length) in C code generated
5898 by 'openssl dhparam -C'.
5901 *) The second argument to set_label in perlasm was already being used
5902 so couldn't be used as a "file scope" flag. Moved to third argument
5906 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5907 instead of RAND_bytes for encryption IVs and salts.
5910 *) Include RAND_status() into RAND_METHOD instead of implementing
5911 it only for md_rand.c Otherwise replacing the PRNG by calling
5912 RAND_set_rand_method would be impossible.
5915 *) Don't let DSA_generate_key() enter an infinite loop if the random
5916 number generation fails.
5919 *) New 'rand' application for creating pseudo-random output.
5922 *) Added configuration support for Linux/IA64
5923 [Rolf Haberrecker <rolf@suse.de>]
5925 *) Assembler module support for Mingw32.
5928 *) Shared library support for HPUX (in shlib/).
5929 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5931 *) Shared library support for Solaris gcc.
5932 [Lutz Behnke <behnke@trustcenter.de>]
5934 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5936 *) PKCS7_encrypt() was adding text MIME headers twice because they
5937 were added manually and by SMIME_crlf_copy().
5940 *) In bntest.c don't call BN_rand with zero bits argument.
5941 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5943 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5944 case was implemented. This caused BN_div_recp() to fail occasionally.
5947 *) Add an optional second argument to the set_label() in the perl
5948 assembly language builder. If this argument exists and is set
5949 to 1 it signals that the assembler should use a symbol whose
5950 scope is the entire file, not just the current function. This
5951 is needed with MASM which uses the format label:: for this scope.
5952 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5954 *) Change the ASN1 types so they are typedefs by default. Before
5955 almost all types were #define'd to ASN1_STRING which was causing
5956 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5960 *) Change names of new functions to the new get1/get0 naming
5961 convention: After 'get1', the caller owns a reference count
5962 and has to call ..._free; 'get0' returns a pointer to some
5963 data structure without incrementing reference counters.
5964 (Some of the existing 'get' functions increment a reference
5965 counter, some don't.)
5966 Similarly, 'set1' and 'add1' functions increase reference
5967 counters or duplicate objects.
5970 *) Allow for the possibility of temp RSA key generation failure:
5971 the code used to assume it always worked and crashed on failure.
5974 *) Fix potential buffer overrun problem in BIO_printf().
5975 [Ulf Möller, using public domain code by Patrick Powell; problem
5976 pointed out by David Sacerdote <das33@cornell.edu>]
5978 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5979 RAND_egd() and RAND_status(). In the command line application,
5980 the EGD socket can be specified like a seed file using RANDFILE
5984 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5985 Some CAs (e.g. Verisign) distribute certificates in this form.
5988 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5989 list to exclude them. This means that no special compilation option
5990 is needed to use anonymous DH: it just needs to be included in the
5994 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5995 EVP_MD_type. The old functionality is available in a new macro called
5996 EVP_MD_md(). Change code that uses it and update docs.
5999 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6000 where the 'void *' argument is replaced by a function pointer argument.
6001 Previously 'void *' was abused to point to functions, which works on
6002 many platforms, but is not correct. As these functions are usually
6003 called by macros defined in OpenSSL header files, most source code
6004 should work without changes.
6007 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6008 sections with information on -D... compiler switches used for
6009 compiling the library so that applications can see them. To enable
6010 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6011 must be defined. E.g.,
6012 #define OPENSSL_ALGORITHM_DEFINES
6013 #include <openssl/opensslconf.h>
6014 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6015 [Richard Levitte, Ulf and Bodo Möller]
6017 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6021 *) Change the 'other' type in certificate aux info to a STACK_OF
6022 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6023 the required ASN1 format: arbitrary types determined by an OID.
6026 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6027 argument to 'req'. This is not because the function is newer or
6028 better than others it just uses the work 'NEW' in the certificate
6029 request header lines. Some software needs this.
6032 *) Reorganise password command line arguments: now passwords can be
6033 obtained from various sources. Delete the PEM_cb function and make
6034 it the default behaviour: i.e. if the callback is NULL and the
6035 usrdata argument is not NULL interpret it as a null terminated pass
6036 phrase. If usrdata and the callback are NULL then the pass phrase
6037 is prompted for as usual.
6040 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6041 the support is automatically enabled. The resulting binaries will
6042 autodetect the card and use it if present.
6043 [Ben Laurie and Compaq Inc.]
6045 *) Work around for Netscape hang bug. This sends certificate request
6046 and server done in one record. Since this is perfectly legal in the
6047 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6048 the bugs/SSLv3 entry for more info.
6051 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6054 *) Add -rand argument to smime and pkcs12 applications and read/write
6058 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6061 *) Add command line password options to the remaining applications.
6064 *) Bug fix for BN_div_recp() for numerators with an even number of
6068 *) More tests in bntest.c, and changed test_bn output.
6071 *) ./config recognizes MacOS X now.
6074 *) Bug fix for BN_div() when the first words of num and divsor are
6075 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6078 *) Add support for various broken PKCS#8 formats, and command line
6079 options to produce them.
6082 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6083 get temporary BIGNUMs from a BN_CTX.
6086 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6090 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6091 include a #define from the old name to the new. The original intent
6092 was that statically linked binaries could for example just call
6093 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6094 link with digests. This never worked becayse SSLeay_add_all_digests()
6095 and SSLeay_add_all_ciphers() were in the same source file so calling
6096 one would link with the other. They are now in separate source files.
6099 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6102 *) Use a less unusual form of the Miller-Rabin primality test (it used
6103 a binary algorithm for exponentiation integrated into the Miller-Rabin
6104 loop, our standard modexp algorithms are faster).
6107 *) Support for the EBCDIC character set completed.
6108 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6110 *) Source code cleanups: use const where appropriate, eliminate casts,
6111 use void * instead of char * in lhash.
6114 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6115 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6116 this the server could overwrite ephemeral keys that the client
6120 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6121 using 50 iterations of the Rabin-Miller test.
6123 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6124 iterations of the Rabin-Miller test as required by the appendix
6125 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6126 As BN_is_prime_fasttest includes trial division, DSA parameter
6127 generation becomes much faster.
6129 This implies a change for the callback functions in DSA_is_prime
6130 and DSA_generate_parameters: The callback function is called once
6131 for each positive witness in the Rabin-Miller test, not just
6132 occasionally in the inner loop; and the parameters to the
6133 callback function now provide an iteration count for the outer
6134 loop rather than for the current invocation of the inner loop.
6135 DSA_generate_parameters additionally can call the callback
6136 function with an 'iteration count' of -1, meaning that a
6137 candidate has passed the trial division test (when q is generated
6138 from an application-provided seed, trial division is skipped).
6141 *) New function BN_is_prime_fasttest that optionally does trial
6142 division before starting the Rabin-Miller test and has
6143 an additional BN_CTX * argument (whereas BN_is_prime always
6144 has to allocate at least one BN_CTX).
6145 'callback(1, -1, cb_arg)' is called when a number has passed the
6146 trial division stage.
6149 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6153 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6156 *) New function BN_pseudo_rand().
6159 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6160 bignum version of BN_from_montgomery() with the working code from
6161 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6165 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6166 made it impossible to use the same SSL_SESSION data structure in
6167 SSL2 clients in multiple threads.
6170 *) The return value of RAND_load_file() no longer counts bytes obtained
6171 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6172 to seed the PRNG (previously an explicit byte count was required).
6173 [Ulf Möller, Bodo Möller]
6175 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6176 used (char *) instead of (void *) and had casts all over the place.
6179 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6182 *) Retain source code compatibility for BN_prime_checks macro:
6183 BN_is_prime(..., BN_prime_checks, ...) now uses
6184 BN_prime_checks_for_size to determine the appropriate number of
6185 Rabin-Miller iterations.
6188 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6189 DH_CHECK_P_NOT_SAFE_PRIME.
6190 (Check if this is true? OpenPGP calls them "strong".)
6193 *) Merge the functionality of "dh" and "gendh" programs into a new program
6194 "dhparam". The old programs are retained for now but will handle DH keys
6195 (instead of parameters) in future.
6198 *) Make the ciphers, s_server and s_client programs check the return values
6199 when a new cipher list is set.
6202 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6203 ciphers. Before when the 56bit ciphers were enabled the sorting was
6206 The syntax for the cipher sorting has been extended to support sorting by
6207 cipher-strength (using the strength_bits hard coded in the tables).
6208 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6210 Fix a bug in the cipher-command parser: when supplying a cipher command
6211 string with an "undefined" symbol (neither command nor alphanumeric
6212 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6213 an error is flagged.
6215 Due to the strength-sorting extension, the code of the
6216 ssl_create_cipher_list() function was completely rearranged. I hope that
6217 the readability was also increased :-)
6218 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6220 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6221 for the first serial number and places 2 in the serial number file. This
6222 avoids problems when the root CA is created with serial number zero and
6223 the first user certificate has the same issuer name and serial number
6227 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6228 the new code. Add documentation for this stuff.
6231 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6232 X509_*() to X509at_*() on the grounds that they don't handle X509
6233 structures and behave in an analagous way to the X509v3 functions:
6234 they shouldn't be called directly but wrapper functions should be used
6237 So we also now have some wrapper functions that call the X509at functions
6238 when passed certificate requests. (TO DO: similar things can be done with
6239 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6240 things. Some of these need some d2i or i2d and print functionality
6241 because they handle more complex structures.)
6244 *) Add missing #ifndefs that caused missing symbols when building libssl
6245 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6246 NO_RSA in ssl/s2*.c.
6247 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6249 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6250 has a return value which indicates the quality of the random data
6251 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6252 error queue. New function RAND_pseudo_bytes() generates output that is
6253 guaranteed to be unique but not unpredictable. RAND_add is like
6254 RAND_seed, but takes an extra argument for an entropy estimate
6255 (RAND_seed always assumes full entropy).
6258 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6259 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6260 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6261 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6262 false-positive rate of at most 2^-80 for random input.
6265 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6268 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6269 in the 0.9.5 release), this returns the chain
6270 from an X509_CTX structure with a dup of the stack and all
6271 the X509 reference counts upped: so the stack will exist
6272 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6275 Also make SSL_SESSION_print() print out the verify return
6279 *) Add manpage for the pkcs12 command. Also change the default
6280 behaviour so MAC iteration counts are used unless the new
6281 -nomaciter option is used. This improves file security and
6282 only older versions of MSIE (4.0 for example) need it.
6285 *) Honor the no-xxx Configure options when creating .DEF files.
6288 *) Add PKCS#10 attributes to field table: challengePassword,
6289 unstructuredName and unstructuredAddress. These are taken from
6290 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6291 international characters are used.
6293 More changes to X509_ATTRIBUTE code: allow the setting of types
6294 based on strings. Remove the 'loc' parameter when adding
6295 attributes because these will be a SET OF encoding which is sorted
6299 *) Initial changes to the 'req' utility to allow request generation
6300 automation. This will allow an application to just generate a template
6301 file containing all the field values and have req construct the
6304 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6305 used all over the place including certificate requests and PKCS#7
6306 structures. They are currently handled manually where necessary with
6307 some primitive wrappers for PKCS#7. The new functions behave in a
6308 manner analogous to the X509 extension functions: they allow
6309 attributes to be looked up by NID and added.
6311 Later something similar to the X509V3 code would be desirable to
6312 automatically handle the encoding, decoding and printing of the
6313 more complex types. The string types like challengePassword can
6314 be handled by the string table functions.
6316 Also modified the multi byte string table handling. Now there is
6317 a 'global mask' which masks out certain types. The table itself
6318 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6319 is useful when for example there is only one permissible type
6320 (as in countryName) and using the mask might result in no valid
6324 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6325 SSL_get_peer_finished to allow applications to obtain the latest
6326 Finished messages sent to the peer or expected from the peer,
6327 respectively. (SSL_get_peer_finished is usually the Finished message
6328 actually received from the peer, otherwise the protocol will be aborted.)
6330 As the Finished message are message digests of the complete handshake
6331 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6332 be used for external authentication procedures when the authentication
6333 provided by SSL/TLS is not desired or is not enough.
6336 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6337 the host supports BWX extension and if Compaq C is present on the
6338 $PATH. Just exploiting of the BWX extension results in 20-30%
6339 performance kick for some algorithms, e.g. DES and RC4 to mention
6340 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6344 *) Add support for MS "fast SGC". This is arguably a violation of the
6345 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6346 weak crypto and after checking the certificate is SGC a second one
6347 with strong crypto. MS SGC stops the first handshake after receiving
6348 the server certificate message and sends a second client hello. Since
6349 a server will typically do all the time consuming operations before
6350 expecting any further messages from the client (server key exchange
6351 is the most expensive) there is little difference between the two.
6353 To get OpenSSL to support MS SGC we have to permit a second client
6354 hello message after we have sent server done. In addition we have to
6355 reset the MAC if we do get this second client hello.
6358 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6359 if a DER encoded private key is RSA or DSA traditional format. Changed
6360 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6361 format DER encoded private key. Newer code should use PKCS#8 format which
6362 has the key type encoded in the ASN1 structure. Added DER private key
6363 support to pkcs8 application.
6366 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6367 ciphersuites has been selected (as required by the SSL 3/TLS 1
6368 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6369 is set, we interpret this as a request to violate the specification
6370 (the worst that can happen is a handshake failure, and 'correct'
6371 behaviour would result in a handshake failure anyway).
6374 *) In SSL_CTX_add_session, take into account that there might be multiple
6375 SSL_SESSION structures with the same session ID (e.g. when two threads
6376 concurrently obtain them from an external cache).
6377 The internal cache can handle only one SSL_SESSION with a given ID,
6378 so if there's a conflict, we now throw out the old one to achieve
6382 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6383 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6384 some routines that use cipher OIDs: some ciphers do not have OIDs
6385 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6389 *) Simplify the trust setting structure and code. Now we just have
6390 two sequences of OIDs for trusted and rejected settings. These will
6391 typically have values the same as the extended key usage extension
6392 and any application specific purposes.
6394 The trust checking code now has a default behaviour: it will just
6395 check for an object with the same NID as the passed id. Functions can
6396 be provided to override either the default behaviour or the behaviour
6397 for a given id. SSL client, server and email already have functions
6398 in place for compatibility: they check the NID and also return "trusted"
6399 if the certificate is self signed.
6402 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6403 traditional format into an EVP_PKEY structure.
6406 *) Add a password callback function PEM_cb() which either prompts for
6407 a password if usr_data is NULL or otherwise assumes it is a null
6408 terminated password. Allow passwords to be passed on command line
6409 environment or config files in a few more utilities.
6412 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6413 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6414 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6415 Update documentation.
6418 *) Support for ASN1 "NULL" type. This could be handled before by using
6419 ASN1_TYPE but there wasn't any function that would try to read a NULL
6420 and produce an error if it couldn't. For compatibility we also have
6421 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6422 don't allocate anything because they don't need to.
6425 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6427 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6429 *) Rebuild of the memory allocation routines used by OpenSSL code and
6430 possibly others as well. The purpose is to make an interface that
6431 provide hooks so anyone can build a separate set of allocation and
6432 deallocation routines to be used by OpenSSL, for example memory
6433 pool implementations, or something else, which was previously hard
6434 since Malloc(), Realloc() and Free() were defined as macros having
6435 the values malloc, realloc and free, respectively (except for Win32
6436 compilations). The same is provided for memory debugging code.
6437 OpenSSL already comes with functionality to find memory leaks, but
6438 this gives people a chance to debug other memory problems.
6440 With these changes, a new set of functions and macros have appeared:
6442 CRYPTO_set_mem_debug_functions() [F]
6443 CRYPTO_get_mem_debug_functions() [F]
6444 CRYPTO_dbg_set_options() [F]
6445 CRYPTO_dbg_get_options() [F]
6446 CRYPTO_malloc_debug_init() [M]
6448 The memory debug functions are NULL by default, unless the library
6449 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6450 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6451 gives the standard debugging functions that come with OpenSSL) or
6452 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6453 provided by the library user) must be used. When the standard
6454 debugging functions are used, CRYPTO_dbg_set_options can be used to
6455 request additional information:
6456 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6457 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6459 Also, things like CRYPTO_set_mem_functions will always give the
6460 expected result (the new set of functions is used for allocation
6461 and deallocation) at all times, regardless of platform and compiler
6464 To finish it up, some functions that were never use in any other
6465 way than through macros have a new API and new semantic:
6468 CRYPTO_dbg_realloc()
6471 All macros of value have retained their old syntax.
6472 [Richard Levitte and Bodo Moeller]
6474 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6475 ordering of SMIMECapabilities wasn't in "strength order" and there
6476 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6480 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6481 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6482 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6484 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6485 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6486 functionality to handle multipart/signed properly) and a utility
6487 called 'smime' to call all this stuff. This is based on code I
6488 originally wrote for Celo who have kindly allowed it to be
6489 included in OpenSSL.
6492 *) Add variants des_set_key_checked and des_set_key_unchecked of
6493 des_set_key (aka des_key_sched). Global variable des_check_key
6494 decides which of these is called by des_set_key; this way
6495 des_check_key behaves as it always did, but applications and
6496 the library itself, which was buggy for des_check_key == 1,
6497 have a cleaner way to pick the version they need.
6500 *) New function PKCS12_newpass() which changes the password of a
6504 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6505 dynamic mix. In both cases the ids can be used as an index into the
6506 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6507 functions so they accept a list of the field values and the
6508 application doesn't need to directly manipulate the X509_TRUST
6512 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6516 *) Modify the way the V3 extension code looks up extensions. This now
6517 works in a similar way to the object code: we have some "standard"
6518 extensions in a static table which is searched with OBJ_bsearch()
6519 and the application can add dynamic ones if needed. The file
6520 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6521 updated whenever a new extension is added to the core code and kept
6522 in ext_nid order. There is a simple program 'tabtest.c' which checks
6523 this. New extensions are not added too often so this file can readily
6524 be maintained manually.
6526 There are two big advantages in doing things this way. The extensions
6527 can be looked up immediately and no longer need to be "added" using
6528 X509V3_add_standard_extensions(): this function now does nothing.
6529 [Side note: I get *lots* of email saying the extension code doesn't
6530 work because people forget to call this function]
6531 Also no dynamic allocation is done unless new extensions are added:
6532 so if we don't add custom extensions there is no need to call
6533 X509V3_EXT_cleanup().
6536 *) Modify enc utility's salting as follows: make salting the default. Add a
6537 magic header, so unsalted files fail gracefully instead of just decrypting
6538 to garbage. This is because not salting is a big security hole, so people
6539 should be discouraged from doing it.
6542 *) Fixes and enhancements to the 'x509' utility. It allowed a message
6543 digest to be passed on the command line but it only used this
6544 parameter when signing a certificate. Modified so all relevant
6545 operations are affected by the digest parameter including the
6546 -fingerprint and -x509toreq options. Also -x509toreq choked if a
6547 DSA key was used because it didn't fix the digest.
6550 *) Initial certificate chain verify code. Currently tests the untrusted
6551 certificates for consistency with the verify purpose (which is set
6552 when the X509_STORE_CTX structure is set up) and checks the pathlength.
6554 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
6555 this is because it will reject chains with invalid extensions whereas
6556 every previous version of OpenSSL and SSLeay made no checks at all.
6558 Trust code: checks the root CA for the relevant trust settings. Trust
6559 settings have an initial value consistent with the verify purpose: e.g.
6560 if the verify purpose is for SSL client use it expects the CA to be
6561 trusted for SSL client use. However the default value can be changed to
6562 permit custom trust settings: one example of this would be to only trust
6563 certificates from a specific "secure" set of CAs.
6565 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
6566 which should be used for version portability: especially since the
6567 verify structure is likely to change more often now.
6569 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
6570 to set them. If not set then assume SSL clients will verify SSL servers
6573 Two new options to the verify program: -untrusted allows a set of
6574 untrusted certificates to be passed in and -purpose which sets the
6575 intended purpose of the certificate. If a purpose is set then the
6576 new chain verify code is used to check extension consistency.
6579 *) Support for the authority information access extension.
6582 *) Modify RSA and DSA PEM read routines to transparently handle
6583 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
6584 public keys in a format compatible with certificate
6585 SubjectPublicKeyInfo structures. Unfortunately there were already
6586 functions called *_PublicKey_* which used various odd formats so
6587 these are retained for compatibility: however the DSA variants were
6588 never in a public release so they have been deleted. Changed dsa/rsa
6589 utilities to handle the new format: note no releases ever handled public
6590 keys so we should be OK.
6592 The primary motivation for this change is to avoid the same fiasco
6593 that dogs private keys: there are several incompatible private key
6594 formats some of which are standard and some OpenSSL specific and
6595 require various evil hacks to allow partial transparent handling and
6596 even then it doesn't work with DER formats. Given the option anything
6597 other than PKCS#8 should be dumped: but the other formats have to
6598 stay in the name of compatibility.
6600 With public keys and the benefit of hindsight one standard format
6601 is used which works with EVP_PKEY, RSA or DSA structures: though
6602 it clearly returns an error if you try to read the wrong kind of key.
6604 Added a -pubkey option to the 'x509' utility to output the public key.
6605 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
6606 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
6607 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
6608 that do the same as the EVP_PKEY_assign_*() except they up the
6609 reference count of the added key (they don't "swallow" the
6613 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
6614 CRLs would fail if the file contained no certificates or no CRLs:
6615 added a new function to read in both types and return the number
6616 read: this means that if none are read it will be an error. The
6617 DER versions of the certificate and CRL reader would always fail
6618 because it isn't possible to mix certificates and CRLs in DER format
6619 without choking one or the other routine. Changed this to just read
6620 a certificate: this is the best we can do. Also modified the code
6621 in apps/verify.c to take notice of return codes: it was previously
6622 attempting to read in certificates from NULL pointers and ignoring
6623 any errors: this is one reason why the cert and CRL reader seemed
6624 to work. It doesn't check return codes from the default certificate
6625 routines: these may well fail if the certificates aren't installed.
6628 *) Code to support otherName option in GeneralName.
6631 *) First update to verify code. Change the verify utility
6632 so it warns if it is passed a self signed certificate:
6633 for consistency with the normal behaviour. X509_verify
6634 has been modified to it will now verify a self signed
6635 certificate if *exactly* the same certificate appears
6636 in the store: it was previously impossible to trust a
6637 single self signed certificate. This means that:
6638 openssl verify ss.pem
6639 now gives a warning about a self signed certificate but
6640 openssl verify -CAfile ss.pem ss.pem
6644 *) For servers, store verify_result in SSL_SESSION data structure
6645 (and add it to external session representation).
6646 This is needed when client certificate verifications fails,
6647 but an application-provided verification callback (set by
6648 SSL_CTX_set_cert_verify_callback) allows accepting the session
6649 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6650 but returns 1): When the session is reused, we have to set
6651 ssl->verify_result to the appropriate error code to avoid
6653 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6655 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6656 case in PKCS7_dataInit() where the signed PKCS7 structure
6657 didn't contain any existing data because it was being created.
6658 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6660 *) Add a salt to the key derivation routines in enc.c. This
6661 forms the first 8 bytes of the encrypted file. Also add a
6662 -S option to allow a salt to be input on the command line.
6665 *) New function X509_cmp(). Oddly enough there wasn't a function
6666 to compare two certificates. We do this by working out the SHA1
6667 hash and comparing that. X509_cmp() will be needed by the trust
6671 *) SSL_get1_session() is like SSL_get_session(), but increments
6672 the reference count in the SSL_SESSION returned.
6673 [Geoff Thorpe <geoff@eu.c2.net>]
6675 *) Fix for 'req': it was adding a null to request attributes.
6676 Also change the X509_LOOKUP and X509_INFO code to handle
6677 certificate auxiliary information.
6680 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6684 *) Add the possibility to add extra information to the memory leak
6685 detecting output, to form tracebacks, showing from where each
6686 allocation was originated: CRYPTO_push_info("constant string") adds
6687 the string plus current file name and line number to a per-thread
6688 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6689 is like calling CYRPTO_pop_info() until the stack is empty.
6690 Also updated memory leak detection code to be multi-thread-safe.
6693 *) Add options -text and -noout to pkcs7 utility and delete the
6694 encryption options which never did anything. Update docs.
6697 *) Add options to some of the utilities to allow the pass phrase
6698 to be included on either the command line (not recommended on
6699 OSes like Unix) or read from the environment. Update the
6700 manpages and fix a few bugs.
6703 *) Add a few manpages for some of the openssl commands.
6706 *) Fix the -revoke option in ca. It was freeing up memory twice,
6707 leaking and not finding already revoked certificates.
6710 *) Extensive changes to support certificate auxiliary information.
6711 This involves the use of X509_CERT_AUX structure and X509_AUX
6712 functions. An X509_AUX function such as PEM_read_X509_AUX()
6713 can still read in a certificate file in the usual way but it
6714 will also read in any additional "auxiliary information". By
6715 doing things this way a fair degree of compatibility can be
6716 retained: existing certificates can have this information added
6717 using the new 'x509' options.
6719 Current auxiliary information includes an "alias" and some trust
6720 settings. The trust settings will ultimately be used in enhanced
6721 certificate chain verification routines: currently a certificate
6722 can only be trusted if it is self signed and then it is trusted
6726 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6727 The problem was that one of the replacement routines had not been working
6728 since SSLeay releases. For now the offending routine has been replaced
6729 with non-optimised assembler. Even so, this now gives around 95%
6730 performance improvement for 1024 bit RSA signs.
6733 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6734 handling. Most clients have the effective key size in bits equal to
6735 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6736 A few however don't do this and instead use the size of the decrypted key
6737 to determine the RC2 key length and the AlgorithmIdentifier to determine
6738 the effective key length. In this case the effective key length can still
6739 be 40 bits but the key length can be 168 bits for example. This is fixed
6740 by manually forcing an RC2 key into the EVP_PKEY structure because the
6741 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6742 the key length and effective key length are equal.
6745 *) Add a bunch of functions that should simplify the creation of
6746 X509_NAME structures. Now you should be able to do:
6747 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6748 and have it automatically work out the correct field type and fill in
6749 the structures. The more adventurous can try:
6750 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6751 and it will (hopefully) work out the correct multibyte encoding.
6754 *) Change the 'req' utility to use the new field handling and multibyte
6755 copy routines. Before the DN field creation was handled in an ad hoc
6756 way in req, ca, and x509 which was rather broken and didn't support
6757 BMPStrings or UTF8Strings. Since some software doesn't implement
6758 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6759 using the dirstring_type option. See the new comment in the default
6760 openssl.cnf for more info.
6763 *) Make crypto/rand/md_rand.c more robust:
6764 - Assure unique random numbers after fork().
6765 - Make sure that concurrent threads access the global counter and
6766 md serializably so that we never lose entropy in them
6767 or use exactly the same state in multiple threads.
6768 Access to the large state is not always serializable because
6769 the additional locking could be a performance killer, and
6770 md should be large enough anyway.
6773 *) New file apps/app_rand.c with commonly needed functionality
6774 for handling the random seed file.
6776 Use the random seed file in some applications that previously did not:
6778 dsaparam -genkey (which also ignored its '-rand' option),
6781 x509 (when signing).
6782 Except on systems with /dev/urandom, it is crucial to have a random
6783 seed file at least for key creation, DSA signing, and for DH exchanges;
6784 for RSA signatures we could do without one.
6786 gendh and gendsa (unlike genrsa) used to read only the first byte
6787 of each file listed in the '-rand' option. The function as previously
6788 found in genrsa is now in app_rand.c and is used by all programs
6789 that support '-rand'.
6792 *) In RAND_write_file, use mode 0600 for creating files;
6793 don't just chmod when it may be too late.
6796 *) Report an error from X509_STORE_load_locations
6797 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6800 *) New function ASN1_mbstring_copy() this copies a string in either
6801 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6802 into an ASN1_STRING type. A mask of permissible types is passed
6803 and it chooses the "minimal" type to use or an error if not type
6807 *) Add function equivalents to the various macros in asn1.h. The old
6808 macros are retained with an M_ prefix. Code inside the library can
6809 use the M_ macros. External code (including the openssl utility)
6810 should *NOT* in order to be "shared library friendly".
6813 *) Add various functions that can check a certificate's extensions
6814 to see if it usable for various purposes such as SSL client,
6815 server or S/MIME and CAs of these types. This is currently
6816 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6817 verification. Also added a -purpose flag to x509 utility to
6818 print out all the purposes.
6821 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6825 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6826 for, obtain and decode and extension and obtain its critical flag.
6827 This allows all the necessary extension code to be handled in a
6828 single function call.
6831 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6832 platforms. See crypto/rc4/rc4_enc.c for further details.
6835 *) New -noout option to asn1parse. This causes no output to be produced
6836 its main use is when combined with -strparse and -out to extract data
6837 from a file (which may not be in ASN.1 format).
6840 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6841 when producing the local key id.
6842 [Richard Levitte <levitte@stacken.kth.se>]
6844 *) New option -dhparam in s_server. This allows a DH parameter file to be
6845 stated explicitly. If it is not stated then it tries the first server
6846 certificate file. The previous behaviour hard coded the filename
6850 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6851 a public key to be input or output. For example:
6852 openssl rsa -in key.pem -pubout -out pubkey.pem
6853 Also added necessary DSA public key functions to handle this.
6856 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6857 in the message. This was handled by allowing
6858 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6859 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6861 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6862 to the end of the strings whereas this didn't. This would cause problems
6863 if strings read with d2i_ASN1_bytes() were later modified.
6864 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6866 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6867 data and it contains EOF it will end up returning an error. This is
6868 caused by input 46 bytes long. The cause is due to the way base64
6869 BIOs find the start of base64 encoded data. They do this by trying a
6870 trial decode on each line until they find one that works. When they
6871 do a flag is set and it starts again knowing it can pass all the
6872 data directly through the decoder. Unfortunately it doesn't reset
6873 the context it uses. This means that if EOF is reached an attempt
6874 is made to pass two EOFs through the context and this causes the
6875 resulting error. This can also cause other problems as well. As is
6876 usual with these problems it takes *ages* to find and the fix is
6877 trivial: move one line.
6878 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6880 *) Ugly workaround to get s_client and s_server working under Windows. The
6881 old code wouldn't work because it needed to select() on sockets and the
6882 tty (for keypresses and to see if data could be written). Win32 only
6883 supports select() on sockets so we select() with a 1s timeout on the
6884 sockets and then see if any characters are waiting to be read, if none
6885 are present then we retry, we also assume we can always write data to
6886 the tty. This isn't nice because the code then blocks until we've
6887 received a complete line of data and it is effectively polling the
6888 keyboard at 1s intervals: however it's quite a bit better than not
6889 working at all :-) A dedicated Windows application might handle this
6890 with an event loop for example.
6893 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6894 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6895 will be called when RSA_sign() and RSA_verify() are used. This is useful
6896 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6897 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6898 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6899 This necessitated the support of an extra signature type NID_md5_sha1
6900 for SSL signatures and modifications to the SSL library to use it instead
6901 of calling RSA_public_decrypt() and RSA_private_encrypt().
6904 *) Add new -verify -CAfile and -CApath options to the crl program, these
6905 will lookup a CRL issuers certificate and verify the signature in a
6906 similar way to the verify program. Tidy up the crl program so it
6907 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6908 less strict. It will now permit CRL extensions even if it is not
6909 a V2 CRL: this will allow it to tolerate some broken CRLs.
6912 *) Initialize all non-automatic variables each time one of the openssl
6913 sub-programs is started (this is necessary as they may be started
6914 multiple times from the "OpenSSL>" prompt).
6915 [Lennart Bang, Bodo Moeller]
6917 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6918 removing all other RSA functionality (this is what NO_RSA does). This
6919 is so (for example) those in the US can disable those operations covered
6920 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6924 *) Non-copying interface to BIO pairs.
6925 (still largely untested)
6928 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6929 ASCII string. This was handled independently in various places before.
6932 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6933 UTF8 strings a character at a time.
6936 *) Use client_version from client hello to select the protocol
6937 (s23_srvr.c) and for RSA client key exchange verification
6938 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6941 *) Add various utility functions to handle SPKACs, these were previously
6942 handled by poking round in the structure internals. Added new function
6943 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6944 print, verify and generate SPKACs. Based on an original idea from
6945 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6948 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6951 *) Allow the config file extension section to be overwritten on the
6952 command line. Based on an original idea from Massimiliano Pala
6953 <madwolf@comune.modena.it>. The new option is called -extensions
6954 and can be applied to ca, req and x509. Also -reqexts to override
6955 the request extensions in req and -crlexts to override the crl extensions
6959 *) Add new feature to the SPKAC handling in ca. Now you can include
6960 the same field multiple times by preceding it by "XXXX." for example:
6963 this is the same syntax as used in the req config file.
6966 *) Allow certificate extensions to be added to certificate requests. These
6967 are specified in a 'req_extensions' option of the req section of the
6968 config file. They can be printed out with the -text option to req but
6969 are otherwise ignored at present.
6972 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6973 data read consists of only the final block it would not decrypted because
6974 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6975 A misplaced 'break' also meant the decrypted final block might not be
6976 copied until the next read.
6979 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6980 a few extra parameters to the DH structure: these will be useful if
6981 for example we want the value of 'q' or implement X9.42 DH.
6984 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6985 provides hooks that allow the default DSA functions or functions on a
6986 "per key" basis to be replaced. This allows hardware acceleration and
6987 hardware key storage to be handled without major modification to the
6988 library. Also added low level modexp hooks and CRYPTO_EX structure and
6989 associated functions.
6992 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6993 as "read only": it can't be written to and the buffer it points to will
6994 not be freed. Reading from a read only BIO is much more efficient than
6995 a normal memory BIO. This was added because there are several times when
6996 an area of memory needs to be read from a BIO. The previous method was
6997 to create a memory BIO and write the data to it, this results in two
6998 copies of the data and an O(n^2) reading algorithm. There is a new
6999 function BIO_new_mem_buf() which creates a read only memory BIO from
7000 an area of memory. Also modified the PKCS#7 routines to use read only
7004 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7005 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7006 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7007 but a retry condition occured while trying to read the rest.
7010 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7011 NID_pkcs7_encrypted by default: this was wrong since this should almost
7012 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7013 the encrypted data type: this is a more sensible place to put it and it
7014 allows the PKCS#12 code to be tidied up that duplicated this
7018 *) Changed obj_dat.pl script so it takes its input and output files on
7019 the command line. This should avoid shell escape redirection problems
7023 *) Initial support for certificate extension requests, these are included
7024 in things like Xenroll certificate requests. Included functions to allow
7025 extensions to be obtained and added.
7028 *) -crlf option to s_client and s_server for sending newlines as
7029 CRLF (as required by many protocols).
7032 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7034 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7035 [Ralf S. Engelschall]
7037 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7038 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7040 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7044 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7045 DH parameters/keys (q is lost during that conversion, but the resulting
7046 DH parameters contain its length).
7048 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7049 much faster than DH_generate_parameters (which creates parameters
7050 where p = 2*q + 1), and also the smaller q makes DH computations
7051 much more efficient (160-bit exponentiation instead of 1024-bit
7052 exponentiation); so this provides a convenient way to support DHE
7053 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7054 utter importance to use
7055 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7057 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7058 when such DH parameters are used, because otherwise small subgroup
7059 attacks may become possible!
7062 *) Avoid memory leak in i2d_DHparams.
7065 *) Allow the -k option to be used more than once in the enc program:
7066 this allows the same encrypted message to be read by multiple recipients.
7069 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7070 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7071 it will always use the numerical form of the OID, even if it has a short
7075 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7076 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7077 otherwise bn_mod_exp was called. In the case of hardware keys for example
7078 no private key components need be present and it might store extra data
7079 in the RSA structure, which cannot be accessed from bn_mod_exp.
7080 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7081 private key operations.
7084 *) Added support for SPARC Linux.
7087 *) pem_password_cb function type incompatibly changed from
7088 typedef int pem_password_cb(char *buf, int size, int rwflag);
7090 ....(char *buf, int size, int rwflag, void *userdata);
7091 so that applications can pass data to their callbacks:
7092 The PEM[_ASN1]_{read,write}... functions and macros now take an
7093 additional void * argument, which is just handed through whenever
7094 the password callback is called.
7095 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7097 New function SSL_CTX_set_default_passwd_cb_userdata.
7099 Compatibility note: As many C implementations push function arguments
7100 onto the stack in reverse order, the new library version is likely to
7101 interoperate with programs that have been compiled with the old
7102 pem_password_cb definition (PEM_whatever takes some data that
7103 happens to be on the stack as its last argument, and the callback
7104 just ignores this garbage); but there is no guarantee whatsoever that
7107 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7108 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7109 problems not only on Windows, but also on some Unix platforms.
7110 To avoid problematic command lines, these definitions are now in an
7111 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7112 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7115 *) MIPS III/IV assembler module is reimplemented.
7118 *) More DES library cleanups: remove references to srand/rand and
7119 delete an unused file.
7122 *) Add support for the the free Netwide assembler (NASM) under Win32,
7123 since not many people have MASM (ml) and it can be hard to obtain.
7124 This is currently experimental but it seems to work OK and pass all
7125 the tests. Check out INSTALL.W32 for info.
7128 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7129 without temporary keys kept an extra copy of the server key,
7130 and connections with temporary keys did not free everything in case
7134 *) New function RSA_check_key and new openssl rsa option -check
7135 for verifying the consistency of RSA keys.
7136 [Ulf Moeller, Bodo Moeller]
7138 *) Various changes to make Win32 compile work:
7139 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7140 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7141 comparison" warnings.
7142 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7145 *) Add a debugging option to PKCS#5 v2 key generation function: when
7146 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7147 derived keys are printed to stderr.
7150 *) Copy the flags in ASN1_STRING_dup().
7151 [Roman E. Pavlov <pre@mo.msk.ru>]
7153 *) The x509 application mishandled signing requests containing DSA
7154 keys when the signing key was also DSA and the parameters didn't match.
7156 It was supposed to omit the parameters when they matched the signing key:
7157 the verifying software was then supposed to automatically use the CA's
7158 parameters if they were absent from the end user certificate.
7160 Omitting parameters is no longer recommended. The test was also
7161 the wrong way round! This was probably due to unusual behaviour in
7162 EVP_cmp_parameters() which returns 1 if the parameters match.
7163 This meant that parameters were omitted when they *didn't* match and
7164 the certificate was useless. Certificates signed with 'ca' didn't have
7166 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7168 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7169 The interface is as follows:
7170 Applications can use
7171 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7172 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7173 "off" is now the default.
7174 The library internally uses
7175 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7176 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7177 to disable memory-checking temporarily.
7179 Some inconsistent states that previously were possible (and were
7180 even the default) are now avoided.
7182 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7183 with each memory chunk allocated; this is occasionally more helpful
7184 than just having a counter.
7186 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7188 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7192 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7193 which largely parallels "options", but is for changing API behaviour,
7194 whereas "options" are about protocol behaviour.
7195 Initial "mode" flags are:
7197 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7198 a single record has been written.
7199 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7200 retries use the same buffer location.
7201 (But all of the contents must be
7205 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7208 *) Fix problems with no-hmac etc.
7209 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7211 *) New functions RSA_get_default_method(), RSA_set_method() and
7212 RSA_get_method(). These allows replacement of RSA_METHODs without having
7213 to mess around with the internals of an RSA structure.
7216 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7217 Also really enable memory leak checks in openssl.c and in some
7219 [Chad C. Mulligan, Bodo Moeller]
7221 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7222 up the length of negative integers. This has now been simplified to just
7223 store the length when it is first determined and use it later, rather
7224 than trying to keep track of where data is copied and updating it to
7226 [Steve Henson, reported by Brien Wheeler
7227 <bwheeler@authentica-security.com>]
7229 *) Add a new function PKCS7_signatureVerify. This allows the verification
7230 of a PKCS#7 signature but with the signing certificate passed to the
7231 function itself. This contrasts with PKCS7_dataVerify which assumes the
7232 certificate is present in the PKCS#7 structure. This isn't always the
7233 case: certificates can be omitted from a PKCS#7 structure and be
7234 distributed by "out of band" means (such as a certificate database).
7237 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7238 function prototypes in pem.h, also change util/mkdef.pl to add the
7239 necessary function names.
7242 *) mk1mf.pl (used by Windows builds) did not properly read the
7243 options set by Configure in the top level Makefile, and Configure
7244 was not even able to write more than one option correctly.
7245 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7248 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7249 file to be loaded from a BIO or FILE pointer. The BIO version will
7250 for example allow memory BIOs to contain config info.
7253 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7254 Whoever hopes to achieve shared-library compatibility across versions
7255 must use this, not the compile-time macro.
7256 (Exercise 0.9.4: Which is the minimum library version required by
7258 Note: All this applies only to multi-threaded programs, others don't
7262 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7263 through a BIO pair triggered the default case, i.e.
7264 SSLerr(...,SSL_R_UNKNOWN_STATE).
7267 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7268 can use the SSL library even if none of the specific BIOs is
7272 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7273 for the encoded length.
7274 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7276 *) Add initial documentation of the X509V3 functions.
7279 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7280 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7281 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7282 secure PKCS#8 private key format with a high iteration count.
7285 *) Fix determination of Perl interpreter: A perl or perl5
7286 _directory_ in $PATH was also accepted as the interpreter.
7287 [Ralf S. Engelschall]
7289 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7290 wrong with it but it was very old and did things like calling
7291 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7295 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7296 to use the new extension code.
7299 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7300 with macros. This should make it easier to change their form, add extra
7301 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7305 *) Add to configuration table a new entry that can specify an alternative
7306 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7307 according to Mark Crispin <MRC@Panda.COM>.
7311 *) DES CBC did not update the IV. Weird.
7314 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7315 Changing the behaviour of the former might break existing programs --
7316 where IV updating is needed, des_ncbc_encrypt can be used.
7319 *) When bntest is run from "make test" it drives bc to check its
7320 calculations, as well as internally checking them. If an internal check
7321 fails, it needs to cause bc to give a non-zero result or make test carries
7322 on without noticing the failure. Fixed.
7325 *) DES library cleanups.
7328 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7329 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7330 ciphers. NOTE: although the key derivation function has been verified
7331 against some published test vectors it has not been extensively tested
7332 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7336 *) Instead of "mkdir -p", which is not fully portable, use new
7337 Perl script "util/mkdir-p.pl".
7340 *) Rewrite the way password based encryption (PBE) is handled. It used to
7341 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7342 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7343 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7344 the 'parameter' field of the AlgorithmIdentifier is passed to the
7345 underlying key generation function so it must do its own ASN1 parsing.
7346 This has also changed the EVP_PBE_CipherInit() function which now has a
7347 'parameter' argument instead of literal salt and iteration count values
7348 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7351 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7352 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7353 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7354 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7355 value was just used as a "magic string" and not used directly its
7356 value doesn't matter.
7359 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7363 *) "linux-sparc64" configuration (ultrapenguin).
7364 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7365 "linux-sparc" configuration.
7366 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7368 *) config now generates no-xxx options for missing ciphers.
7371 *) Support the EBCDIC character set (work in progress).
7372 File ebcdic.c not yet included because it has a different license.
7373 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7375 *) Support BS2000/OSD-POSIX.
7376 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7378 *) Make callbacks for key generation use void * instead of char *.
7381 *) Make S/MIME samples compile (not yet tested).
7384 *) Additional typesafe stacks.
7387 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7391 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7393 *) New configuration variant "sco5-gcc".
7395 *) Updated some demos.
7396 [Sean O Riordain, Wade Scholine]
7398 *) Add missing BIO_free at exit of pkcs12 application.
7401 *) Fix memory leak in conf.c.
7404 *) Updates for Win32 to assembler version of MD5.
7407 *) Set #! path to perl in apps/der_chop to where we found it
7408 instead of using a fixed path.
7411 *) SHA library changes for irix64-mips4-cc.
7414 *) Improvements for VMS support.
7418 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7420 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7421 This also avoids the problems with SC4.2 and unpatched SC5.
7422 [Andy Polyakov <appro@fy.chalmers.se>]
7424 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7425 These are required because of the typesafe stack would otherwise break
7426 existing code. If old code used a structure member which used to be STACK
7427 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7428 sk_num or sk_value it would produce an error because the num, data members
7429 are not present in STACK_OF. Now it just produces a warning. sk_set
7430 replaces the old method of assigning a value to sk_value
7431 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7432 that does this will no longer work (and should use sk_set instead) but
7433 this could be regarded as a "questionable" behaviour anyway.
7436 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7437 correctly handle encrypted S/MIME data.
7440 *) Change type of various DES function arguments from des_cblock
7441 (which means, in function argument declarations, pointer to char)
7442 to des_cblock * (meaning pointer to array with 8 char elements),
7443 which allows the compiler to do more typechecking; it was like
7444 that back in SSLeay, but with lots of ugly casts.
7446 Introduce new type const_des_cblock.
7449 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7450 problems: find RecipientInfo structure that matches recipient certificate
7451 and initialise the ASN1 structures properly based on passed cipher.
7454 *) Belatedly make the BN tests actually check the results.
7457 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7458 to and from BNs: it was completely broken. New compilation option
7459 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7460 key elements as negative integers.
7463 *) Reorganize and speed up MD5.
7464 [Andy Polyakov <appro@fy.chalmers.se>]
7467 [Richard Levitte <richard@levitte.org>]
7469 *) New option -out to asn1parse to allow the parsed structure to be
7470 output to a file. This is most useful when combined with the -strparse
7471 option to examine the output of things like OCTET STRINGS.
7474 *) Make SSL library a little more fool-proof by not requiring any longer
7475 that SSL_set_{accept,connect}_state be called before
7476 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7477 in many applications because usually everything *appeared* to work as
7478 intended anyway -- now it really works as intended).
7481 *) Move openssl.cnf out of lib/.
7484 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7485 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7486 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7487 [Ralf S. Engelschall]
7489 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7490 handle PKCS#7 enveloped data properly.
7491 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7493 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7494 copying pointers. The cert_st handling is changed by this in
7495 various ways (and thus what used to be known as ctx->default_cert
7496 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7497 any longer when s->cert does not give us what we need).
7498 ssl_cert_instantiate becomes obsolete by this change.
7499 As soon as we've got the new code right (possibly it already is?),
7500 we have solved a couple of bugs of the earlier code where s->cert
7501 was used as if it could not have been shared with other SSL structures.
7503 Note that using the SSL API in certain dirty ways now will result
7504 in different behaviour than observed with earlier library versions:
7505 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7506 does not influence s as it used to.
7508 In order to clean up things more thoroughly, inside SSL_SESSION
7509 we don't use CERT any longer, but a new structure SESS_CERT
7510 that holds per-session data (if available); currently, this is
7511 the peer's certificate chain and, for clients, the server's certificate
7512 and temporary key. CERT holds only those values that can have
7513 meaningful defaults in an SSL_CTX.
7516 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7517 from the internal representation. Various PKCS#7 fixes: remove some
7518 evil casts and set the enc_dig_alg field properly based on the signing
7522 *) Allow PKCS#12 password to be set from the command line or the
7523 environment. Let 'ca' get its config file name from the environment
7524 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7528 *) Allow certificate policies extension to use an IA5STRING for the
7529 organization field. This is contrary to the PKIX definition but
7530 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7534 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7535 without disallowing inline assembler and the like for non-pedantic builds.
7538 *) Support Borland C++ builder.
7539 [Janez Jere <jj@void.si>, modified by Ulf Möller]
7544 *) SHA-1 cleanups and performance enhancements.
7545 [Andy Polyakov <appro@fy.chalmers.se>]
7547 *) Sparc v8plus assembler for the bignum library.
7548 [Andy Polyakov <appro@fy.chalmers.se>]
7550 *) Accept any -xxx and +xxx compiler options in Configure.
7553 *) Update HPUX configuration.
7556 *) Add missing sk_<type>_unshift() function to safestack.h
7557 [Ralf S. Engelschall]
7559 *) New function SSL_CTX_use_certificate_chain_file that sets the
7560 "extra_cert"s in addition to the certificate. (This makes sense
7561 only for "PEM" format files, as chains as a whole are not
7565 *) Support verify_depth from the SSL API.
7566 x509_vfy.c had what can be considered an off-by-one-error:
7567 Its depth (which was not part of the external interface)
7568 was actually counting the number of certificates in a chain;
7569 now it really counts the depth.
7572 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
7573 instead of X509err, which often resulted in confusing error
7574 messages since the error codes are not globally unique
7575 (e.g. an alleged error in ssl3_accept when a certificate
7576 didn't match the private key).
7578 *) New function SSL_CTX_set_session_id_context that allows to set a default
7579 value (so that you don't need SSL_set_session_id_context for each
7580 connection using the SSL_CTX).
7583 *) OAEP decoding bug fix.
7586 *) Support INSTALL_PREFIX for package builders, as proposed by
7590 *) New Configure options "threads" and "no-threads". For systems
7591 where the proper compiler options are known (currently Solaris
7592 and Linux), "threads" is the default.
7595 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
7598 *) Install various scripts to $(OPENSSLDIR)/misc, not to
7599 $(INSTALLTOP)/bin -- they shouldn't clutter directories
7600 such as /usr/local/bin.
7603 *) "make linux-shared" to build shared libraries.
7604 [Niels Poppe <niels@netbox.org>]
7606 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
7609 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
7610 extension adding in x509 utility.
7613 *) Remove NOPROTO sections and error code comments.
7616 *) Partial rewrite of the DEF file generator to now parse the ANSI
7620 *) New Configure options --prefix=DIR and --openssldir=DIR.
7623 *) Complete rewrite of the error code script(s). It is all now handled
7624 by one script at the top level which handles error code gathering,
7625 header rewriting and C source file generation. It should be much better
7626 than the old method: it now uses a modified version of Ulf's parser to
7627 read the ANSI prototypes in all header files (thus the old K&R definitions
7628 aren't needed for error creation any more) and do a better job of
7629 translating function codes into names. The old 'ASN1 error code imbedded
7630 in a comment' is no longer necessary and it doesn't use .err files which
7631 have now been deleted. Also the error code call doesn't have to appear all
7632 on one line (which resulted in some large lines...).
7635 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7638 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7639 0 (which usually indicates a closed connection), but continue reading.
7642 *) Fix some race conditions.
7645 *) Add support for CRL distribution points extension. Add Certificate
7646 Policies and CRL distribution points documentation.
7649 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7652 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7653 8 of keying material. Merlin has also confirmed interop with this fix
7654 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7655 [Merlin Hughes <merlin@baltimore.ie>]
7657 *) Fix lots of warnings.
7658 [Richard Levitte <levitte@stacken.kth.se>]
7660 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7661 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7662 [Richard Levitte <levitte@stacken.kth.se>]
7664 *) Fix problems with sizeof(long) == 8.
7665 [Andy Polyakov <appro@fy.chalmers.se>]
7667 *) Change functions to ANSI C.
7670 *) Fix typos in error codes.
7671 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7673 *) Remove defunct assembler files from Configure.
7676 *) SPARC v8 assembler BIGNUM implementation.
7677 [Andy Polyakov <appro@fy.chalmers.se>]
7679 *) Support for Certificate Policies extension: both print and set.
7680 Various additions to support the r2i method this uses.
7683 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7684 return a const string when you are expecting an allocated buffer.
7687 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7688 types DirectoryString and DisplayText.
7691 *) Add code to allow r2i extensions to access the configuration database,
7692 add an LHASH database driver and add several ctx helper functions.
7695 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7696 fail when they extended the size of a BIGNUM.
7699 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7700 support typesafe stack.
7703 *) Fix typo in SSL_[gs]et_options().
7704 [Nils Frostberg <nils@medcom.se>]
7706 *) Delete various functions and files that belonged to the (now obsolete)
7707 old X509V3 handling code.
7710 *) New Configure option "rsaref".
7713 *) Don't auto-generate pem.h.
7716 *) Introduce type-safe ASN.1 SETs.
7719 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7720 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7722 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7723 that links with OpenSSL (well at least cause lots of warnings), but fear
7724 not: the conversion is trivial, and it eliminates loads of evil casts. A
7725 few STACKed things have been converted already. Feel free to convert more.
7726 In the fullness of time, I'll do away with the STACK type altogether.
7729 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7730 specified in <certfile> by updating the entry in the index.txt file.
7731 This way one no longer has to edit the index.txt file manually for
7732 revoking a certificate. The -revoke option does the gory details now.
7733 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7735 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7736 `-text' option at all and this way the `-noout -text' combination was
7737 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7738 [Ralf S. Engelschall]
7740 *) Make sure a corresponding plain text error message exists for the
7741 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7742 verify callback function determined that a certificate was revoked.
7743 [Ralf S. Engelschall]
7745 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7746 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7747 all available cipers including rc5, which was forgotten until now.
7748 In order to let the testing shell script know which algorithms
7749 are available, a new (up to now undocumented) command
7750 "openssl list-cipher-commands" is used.
7753 *) Bugfix: s_client occasionally would sleep in select() when
7754 it should have checked SSL_pending() first.
7757 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7758 the raw DSA values prior to ASN.1 encoding.
7761 *) Tweaks to Configure
7762 [Niels Poppe <niels@netbox.org>]
7764 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7768 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7771 *) New config option to avoid instructions that are illegal on the 80386.
7772 The default code is faster, but requires at least a 486.
7775 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7776 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7777 same as SSL2_VERSION anyway.
7780 *) New "-showcerts" option for s_client.
7783 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7784 application. Various cleanups and fixes.
7787 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7788 modify error routines to work internally. Add error codes and PBE init
7789 to library startup routines.
7792 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7793 packing functions to asn1 and evp. Changed function names and error
7794 codes along the way.
7797 *) PKCS12 integration: and so it begins... First of several patches to
7798 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7799 objects to objects.h
7802 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7803 and display support for Thawte strong extranet extension.
7806 *) Add LinuxPPC support.
7807 [Jeff Dubrule <igor@pobox.org>]
7809 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7810 bn_div_words in alpha.s.
7811 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7813 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7814 OAEP isn't supported when OpenSSL is built with RSAref.
7815 [Ulf Moeller <ulf@fitug.de>]
7817 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7818 so they no longer are missing under -DNOPROTO.
7819 [Soren S. Jorvang <soren@t.dk>]
7822 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7824 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7825 doesn't work when the session is reused. Coming soon!
7828 *) Fix a security hole, that allows sessions to be reused in the wrong
7829 context thus bypassing client cert protection! All software that uses
7830 client certs and session caches in multiple contexts NEEDS PATCHING to
7831 allow session reuse! A fuller solution is in the works.
7832 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7834 *) Some more source tree cleanups (removed obsolete files
7835 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7836 permission on "config" script to be executable) and a fix for the INSTALL
7838 [Ulf Moeller <ulf@fitug.de>]
7840 *) Remove some legacy and erroneous uses of malloc, free instead of
7842 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7844 *) Make rsa_oaep_test return non-zero on error.
7845 [Ulf Moeller <ulf@fitug.de>]
7847 *) Add support for native Solaris shared libraries. Configure
7848 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7849 if someone would make that last step automatic.
7850 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7852 *) ctx_size was not built with the right compiler during "make links". Fixed.
7855 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7856 except NULL ciphers". This means the default cipher list will no longer
7857 enable NULL ciphers. They need to be specifically enabled e.g. with
7858 the string "DEFAULT:eNULL".
7861 *) Fix to RSA private encryption routines: if p < q then it would
7862 occasionally produce an invalid result. This will only happen with
7863 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7866 *) Be less restrictive and allow also `perl util/perlpath.pl
7867 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7868 because this way one can also use an interpreter named `perl5' (which is
7869 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7870 installed as `perl').
7871 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7873 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7874 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7876 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7877 advapi32.lib to Win32 build and change the pem test comparision
7878 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7879 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7880 and crypto/des/ede_cbcm_enc.c.
7883 *) DES quad checksum was broken on big-endian architectures. Fixed.
7886 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7887 Win32 test batch file so it (might) work again. The Win32 test batch file
7888 is horrible: I feel ill....
7891 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7892 in e_os.h. Audit of header files to check ANSI and non ANSI
7893 sections: 10 functions were absent from non ANSI section and not exported
7894 from Windows DLLs. Fixed up libeay.num for new functions.
7897 *) Make `openssl version' output lines consistent.
7898 [Ralf S. Engelschall]
7900 *) Fix Win32 symbol export lists for BIO functions: Added
7901 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7902 to ms/libeay{16,32}.def.
7903 [Ralf S. Engelschall]
7905 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7906 fine under Unix and passes some trivial tests I've now added. But the
7907 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7908 added to make sure no one expects that this stuff really works in the
7909 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7910 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7912 [Ralf S. Engelschall]
7914 *) Fix the generation of two part addresses in perl.
7915 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7917 *) Add config entry for Linux on MIPS.
7918 [John Tobey <jtobey@channel1.com>]
7920 *) Make links whenever Configure is run, unless we are on Windoze.
7923 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7924 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7928 *) Add a useful kludge to allow package maintainers to specify compiler and
7929 other platforms details on the command line without having to patch the
7930 Configure script everytime: One now can use ``perl Configure
7931 <id>:<details>'', i.e. platform ids are allowed to have details appended
7932 to them (seperated by colons). This is treated as there would be a static
7933 pre-configured entry in Configure's %table under key <id> with value
7934 <details> and ``perl Configure <id>'' is called. So, when you want to
7935 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7936 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7937 now, which overrides the FreeBSD-elf entry on-the-fly.
7938 [Ralf S. Engelschall]
7940 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7943 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7944 on the `perl Configure ...' command line. This way one can compile
7945 OpenSSL libraries with Position Independent Code (PIC) which is needed
7946 for linking it into DSOs.
7947 [Ralf S. Engelschall]
7949 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7953 *) Cleaned up the LICENSE document: The official contact for any license
7954 questions now is the OpenSSL core team under openssl-core@openssl.org.
7955 And add a paragraph about the dual-license situation to make sure people
7956 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7957 to the OpenSSL toolkit.
7958 [Ralf S. Engelschall]
7960 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7961 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7962 Additonally cleaned up the `make links' target: Remove unnecessary
7963 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7964 to speed processing and no longer clutter the display with confusing
7965 stuff. Instead only the actually done links are displayed.
7966 [Ralf S. Engelschall]
7968 *) Permit null encryption ciphersuites, used for authentication only. It used
7969 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7970 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7974 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7975 signed attributes when verifying signatures (this would break them),
7976 the detached data encoding was wrong and public keys obtained using
7977 X509_get_pubkey() weren't freed.
7980 *) Add text documentation for the BUFFER functions. Also added a work around
7981 to a Win95 console bug. This was triggered by the password read stuff: the
7982 last character typed gets carried over to the next fread(). If you were
7983 generating a new cert request using 'req' for example then the last
7984 character of the passphrase would be CR which would then enter the first
7988 *) Added the new `Includes OpenSSL Cryptography Software' button as
7989 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7990 button and can be used by applications based on OpenSSL to show the
7991 relationship to the OpenSSL project.
7992 [Ralf S. Engelschall]
7994 *) Remove confusing variables in function signatures in files
7995 ssl/ssl_lib.c and ssl/ssl.h.
7996 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7998 *) Don't install bss_file.c under PREFIX/include/
7999 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8001 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8002 functions that return function pointers and has support for NT specific
8003 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8004 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8005 unsigned to signed types: this was killing the Win32 compile.
8008 *) Add new certificate file to stack functions,
8009 SSL_add_dir_cert_subjects_to_stack() and
8010 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8011 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8012 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8013 This means that Apache-SSL and similar packages don't have to mess around
8014 to add as many CAs as they want to the preferred list.
8017 *) Experiment with doxygen documentation. Currently only partially applied to
8019 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8020 openssl.doxy as the configuration file.
8023 *) Get rid of remaining C++-style comments which strict C compilers hate.
8024 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8026 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8027 compiled in by default: it has problems with large keys.
8030 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8031 DH private keys and/or callback functions which directly correspond to
8032 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8033 is needed for applications which have to configure certificates on a
8034 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8036 For the RSA certificate situation is makes no difference, but
8037 for the DSA certificate situation this fixes the "no shared cipher"
8038 problem where the OpenSSL cipher selection procedure failed because the
8039 temporary keys were not overtaken from the context and the API provided
8040 no way to reconfigure them.
8041 The new functions now let applications reconfigure the stuff and they
8042 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8043 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8044 non-public-API function ssl_cert_instantiate() is used as a helper
8045 function and also to reduce code redundancy inside ssl_rsa.c.
8046 [Ralf S. Engelschall]
8048 *) Move s_server -dcert and -dkey options out of the undocumented feature
8049 area because they are useful for the DSA situation and should be
8050 recognized by the users.
8051 [Ralf S. Engelschall]
8053 *) Fix the cipher decision scheme for export ciphers: the export bits are
8054 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8055 SSL_EXP_MASK. So, the original variable has to be used instead of the
8056 already masked variable.
8057 [Richard Levitte <levitte@stacken.kth.se>]
8059 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8060 [Richard Levitte <levitte@stacken.kth.se>]
8062 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8063 from `int' to `unsigned int' because it's a length and initialized by
8064 EVP_DigestFinal() which expects an `unsigned int *'.
8065 [Richard Levitte <levitte@stacken.kth.se>]
8067 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8068 script. Instead use the usual Shell->Perl transition trick.
8069 [Ralf S. Engelschall]
8071 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8072 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8073 -noout -modulus' as it's already the case for `openssl rsa -noout
8074 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8075 currently the public key is printed (a decision which was already done by
8076 `openssl dsa -modulus' in the past) which serves a similar purpose.
8077 Additionally the NO_RSA no longer completely removes the whole -modulus
8078 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8080 [Ralf S. Engelschall]
8082 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8083 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8084 [Arne Ansper <arne@ats.cyber.ee>]
8086 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8087 to be added. Now both 'req' and 'ca' can use new objects defined in the
8091 *) Add cool BIO that does syslog (or event log on NT).
8092 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8094 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8095 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8096 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8097 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8100 *) Add preliminary config info for new extension code.
8103 *) Make RSA_NO_PADDING really use no padding.
8104 [Ulf Moeller <ulf@fitug.de>]
8106 *) Generate errors when private/public key check is done.
8109 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8110 for some CRL extensions and new objects added.
8113 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8114 key usage extension and fuller support for authority key id.
8117 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8118 padding method for RSA, which is recommended for new applications in PKCS
8119 #1 v2.0 (RFC 2437, October 1998).
8120 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8121 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8122 against Bleichbacher's attack on RSA.
8123 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8126 *) Updates to the new SSL compression code
8127 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8129 *) Fix so that the version number in the master secret, when passed
8130 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8131 (because the server will not accept higher), that the version number
8132 is 0x03,0x01, not 0x03,0x00
8133 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8135 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8136 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8137 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8140 *) Support for RAW extensions where an arbitrary extension can be
8141 created by including its DER encoding. See apps/openssl.cnf for
8145 *) Make sure latest Perl versions don't interpret some generated C array
8146 code as Perl array code in the crypto/err/err_genc.pl script.
8147 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8149 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8150 not many people have the assembler. Various Win32 compilation fixes and
8151 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8155 *) Modify configure script 'Configure' to automatically create crypto/date.h
8156 file under Win32 and also build pem.h from pem.org. New script
8157 util/mkfiles.pl to create the MINFO file on environments that can't do a
8158 'make files': perl util/mkfiles.pl >MINFO should work.
8161 *) Major rework of DES function declarations, in the pursuit of correctness
8162 and purity. As a result, many evil casts evaporated, and some weirdness,
8163 too. You may find this causes warnings in your code. Zapping your evil
8164 casts will probably fix them. Mostly.
8167 *) Fix for a typo in asn1.h. Bug fix to object creation script
8168 obj_dat.pl. It considered a zero in an object definition to mean
8169 "end of object": none of the objects in objects.h have any zeros
8170 so it wasn't spotted.
8171 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8173 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8174 Masking (CBCM). In the absence of test vectors, the best I have been able
8175 to do is check that the decrypt undoes the encrypt, so far. Send me test
8176 vectors if you have them.
8179 *) Correct calculation of key length for export ciphers (too much space was
8180 allocated for null ciphers). This has not been tested!
8183 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8184 message is now correct (it understands "crypto" and "ssl" on its
8185 command line). There is also now an "update" option. This will update
8186 the util/ssleay.num and util/libeay.num files with any new functions.
8188 perl util/mkdef.pl crypto ssl update
8189 it will update them.
8192 *) Overhauled the Perl interface (perl/*):
8193 - ported BN stuff to OpenSSL's different BN library
8194 - made the perl/ source tree CVS-aware
8195 - renamed the package from SSLeay to OpenSSL (the files still contain
8196 their history because I've copied them in the repository)
8197 - removed obsolete files (the test scripts will be replaced
8198 by better Test::Harness variants in the future)
8199 [Ralf S. Engelschall]
8201 *) First cut for a very conservative source tree cleanup:
8202 1. merge various obsolete readme texts into doc/ssleay.txt
8203 where we collect the old documents and readme texts.
8204 2. remove the first part of files where I'm already sure that we no
8205 longer need them because of three reasons: either they are just temporary
8206 files which were left by Eric or they are preserved original files where
8207 I've verified that the diff is also available in the CVS via "cvs diff
8208 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8209 the crypto/md/ stuff).
8210 [Ralf S. Engelschall]
8212 *) More extension code. Incomplete support for subject and issuer alt
8213 name, issuer and authority key id. Change the i2v function parameters
8214 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8215 what that's for :-) Fix to ASN1 macro which messed up
8216 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8219 *) Preliminary support for ENUMERATED type. This is largely copied from the
8223 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8224 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8226 *) Make sure `make rehash' target really finds the `openssl' program.
8227 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8229 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8230 like to hear about it if this slows down other processors.
8233 *) Add CygWin32 platform information to Configure script.
8234 [Alan Batie <batie@aahz.jf.intel.com>]
8236 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8237 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8239 *) New program nseq to manipulate netscape certificate sequences
8242 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8246 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8247 but the BN code had some problems that would cause failures when
8248 doing certificate verification and some other functions.
8249 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8251 *) Add ASN1 and PEM code to support netscape certificate sequences.
8254 *) Add ASN1 and PEM code to support netscape certificate sequences.
8257 *) Add several PKIX and private extended key usage OIDs.
8260 *) Modify the 'ca' program to handle the new extension code. Modify
8261 openssl.cnf for new extension format, add comments.
8264 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8265 and add a sample to openssl.cnf so req -x509 now adds appropriate
8269 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8270 error code, add initial support to X509_print() and x509 application.
8273 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8274 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8275 stuff is currently isolated and isn't even compiled yet.
8278 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8279 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8280 Removed the versions check from X509 routines when loading extensions:
8281 this allows certain broken certificates that don't set the version
8282 properly to be processed.
8285 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8286 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8287 can still be regenerated with "make depend".
8290 *) Spelling mistake in C version of CAST-128.
8291 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8293 *) Changes to the error generation code. The perl script err-code.pl
8294 now reads in the old error codes and retains the old numbers, only
8295 adding new ones if necessary. It also only changes the .err files if new
8296 codes are added. The makefiles have been modified to only insert errors
8297 when needed (to avoid needlessly modifying header files). This is done
8298 by only inserting errors if the .err file is newer than the auto generated
8299 C file. To rebuild all the error codes from scratch (the old behaviour)
8300 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8301 or delete all the .err files.
8304 *) CAST-128 was incorrectly implemented for short keys. The C version has
8305 been fixed, but is untested. The assembler versions are also fixed, but
8306 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8307 to regenerate it if needed.
8308 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8309 Hagino <itojun@kame.net>]
8311 *) File was opened incorrectly in randfile.c.
8312 [Ulf Möller <ulf@fitug.de>]
8314 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8315 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8316 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8317 al: it's just almost always a UTCTime. Note this patch adds new error
8318 codes so do a "make errors" if there are problems.
8321 *) Correct Linux 1 recognition in config.
8322 [Ulf Möller <ulf@fitug.de>]
8324 *) Remove pointless MD5 hash when using DSA keys in ca.
8325 [Anonymous <nobody@replay.com>]
8327 *) Generate an error if given an empty string as a cert directory. Also
8328 generate an error if handed NULL (previously returned 0 to indicate an
8329 error, but didn't set one).
8330 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8332 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8335 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8336 parameters. This was causing a warning which killed off the Win32 compile.
8339 *) Remove C++ style comments from crypto/bn/bn_local.h.
8340 [Neil Costigan <neil.costigan@celocom.com>]
8342 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8343 based on a text string, looking up short and long names and finally
8344 "dot" format. The "dot" format stuff didn't work. Added new function
8345 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8346 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8347 OID is not part of the table.
8350 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8351 X509_LOOKUP_by_alias().
8354 *) Sort openssl functions by name.
8357 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8358 encryption from sample DSA keys (in case anyone is interested the password
8362 *) Make _all_ *_free functions accept a NULL pointer.
8363 [Frans Heymans <fheymans@isaserver.be>]
8365 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8367 [Anonymous <nobody@replay.com>]
8369 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8370 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8372 *) Don't blow it for numeric -newkey arguments to apps/req.
8373 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8375 *) Temp key "for export" tests were wrong in s3_srvr.c.
8376 [Anonymous <nobody@replay.com>]
8378 *) Add prototype for temp key callback functions
8379 SSL_CTX_set_tmp_{rsa,dh}_callback().
8382 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8383 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8386 *) X509_name_add_entry() freed the wrong thing after an error.
8387 [Arne Ansper <arne@ats.cyber.ee>]
8389 *) rsa_eay.c would attempt to free a NULL context.
8390 [Arne Ansper <arne@ats.cyber.ee>]
8392 *) BIO_s_socket() had a broken should_retry() on Windoze.
8393 [Arne Ansper <arne@ats.cyber.ee>]
8395 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8396 [Arne Ansper <arne@ats.cyber.ee>]
8398 *) Make sure the already existing X509_STORE->depth variable is initialized
8399 in X509_STORE_new(), but document the fact that this variable is still
8400 unused in the certificate verification process.
8401 [Ralf S. Engelschall]
8403 *) Fix the various library and apps files to free up pkeys obtained from
8404 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8407 *) Fix reference counting in X509_PUBKEY_get(). This makes
8408 demos/maurice/example2.c work, amongst others, probably.
8409 [Steve Henson and Ben Laurie]
8411 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8412 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8413 are no longer created. This way we have a single and consistent command
8414 line interface `openssl <command>', similar to `cvs <command>'.
8415 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8417 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8418 BIT STRING wrapper always have zero unused bits.
8421 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8424 *) Make the top-level INSTALL documentation easier to understand.
8427 *) Makefiles updated to exit if an error occurs in a sub-directory
8428 make (including if user presses ^C) [Paul Sutton]
8430 *) Make Montgomery context stuff explicit in RSA data structure.
8433 *) Fix build order of pem and err to allow for generated pem.h.
8436 *) Fix renumbering bug in X509_NAME_delete_entry().
8439 *) Enhanced the err-ins.pl script so it makes the error library number
8440 global and can add a library name. This is needed for external ASN1 and
8441 other error libraries.
8444 *) Fixed sk_insert which never worked properly.
8447 *) Fix ASN1 macros so they can handle indefinite length construted
8448 EXPLICIT tags. Some non standard certificates use these: they can now
8452 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8453 into a single doc/ssleay.txt bundle. This way the information is still
8454 preserved but no longer messes up this directory. Now it's new room for
8455 the new set of documenation files.
8456 [Ralf S. Engelschall]
8458 *) SETs were incorrectly DER encoded. This was a major pain, because they
8459 shared code with SEQUENCEs, which aren't coded the same. This means that
8460 almost everything to do with SETs or SEQUENCEs has either changed name or
8461 number of arguments.
8462 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8464 *) Fix test data to work with the above.
8467 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8468 was already fixed by Eric for 0.9.1 it seems.
8469 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8471 *) Autodetect FreeBSD3.
8474 *) Fix various bugs in Configure. This affects the following platforms:
8478 unixware-2.0-pentium
8482 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8483 before they are needed.
8486 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8490 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8492 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8493 changed SSLeay to OpenSSL in version strings.
8494 [Ralf S. Engelschall]
8496 *) Some fixups to the top-level documents.
8499 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8500 because the symlink to include/ was missing.
8501 [Ralf S. Engelschall]
8503 *) Incorporated the popular no-RSA/DSA-only patches
8504 which allow to compile a RSA-free SSLeay.
8505 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8507 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8508 when "ssleay" is still not found.
8509 [Ralf S. Engelschall]
8511 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8512 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8514 *) Updated the README file.
8515 [Ralf S. Engelschall]
8517 *) Added various .cvsignore files in the CVS repository subdirs
8518 to make a "cvs update" really silent.
8519 [Ralf S. Engelschall]
8521 *) Recompiled the error-definition header files and added
8522 missing symbols to the Win32 linker tables.
8523 [Ralf S. Engelschall]
8525 *) Cleaned up the top-level documents;
8526 o new files: CHANGES and LICENSE
8527 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8528 o merged COPYRIGHT into LICENSE
8529 o removed obsolete TODO file
8530 o renamed MICROSOFT to INSTALL.W32
8531 [Ralf S. Engelschall]
8533 *) Removed dummy files from the 0.9.1b source tree:
8534 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8535 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8536 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
8537 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
8538 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
8539 [Ralf S. Engelschall]
8541 *) Added various platform portability fixes.
8544 *) The Genesis of the OpenSSL rpject:
8545 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
8546 Young and Tim J. Hudson created while they were working for C2Net until
8548 [The OpenSSL Project]
8551 Changes between 0.9.0b and 0.9.1b [not released]
8553 *) Updated a few CA certificates under certs/
8556 *) Changed some BIGNUM api stuff.
8559 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
8560 DGUX x86, Linux Alpha, etc.
8563 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
8564 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
8568 *) Add -strparse option to asn1pars program which parses nested
8570 [Dr Stephen Henson <shenson@bigfoot.com>]
8572 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
8575 *) DSA fix for "ca" program.
8578 *) Added "-genkey" option to "dsaparam" program.
8581 *) Added RIPE MD160 (rmd160) message digest.
8584 *) Added -a (all) option to "ssleay version" command.
8587 *) Added PLATFORM define which is the id given to Configure.
8590 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
8593 *) Extended the ASN.1 parser routines.
8596 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
8599 *) Added a BN_CTX to the BN library.
8602 *) Fixed the weak key values in DES library
8605 *) Changed API in EVP library for cipher aliases.
8608 *) Added support for RC2/64bit cipher.
8611 *) Converted the lhash library to the crypto/mem.c functions.
8614 *) Added more recognized ASN.1 object ids.
8617 *) Added more RSA padding checks for SSL/TLS.
8620 *) Added BIO proxy/filter functionality.
8623 *) Added extra_certs to SSL_CTX which can be used
8624 send extra CA certificates to the client in the CA cert chain sending
8625 process. It can be configured with SSL_CTX_add_extra_chain_cert().
8628 *) Now Fortezza is denied in the authentication phase because
8629 this is key exchange mechanism is not supported by SSLeay at all.
8632 *) Additional PKCS1 checks.
8635 *) Support the string "TLSv1" for all TLS v1 ciphers.
8638 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8639 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8642 *) Fixed a few memory leaks.
8645 *) Fixed various code and comment typos.
8648 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8649 bytes sent in the client random.
8650 [Edward Bishop <ebishop@spyglass.com>]
projects / thirdparty / openssl.git / blob