5 Changes between 0.9.8zg and 0.9.8zh [3 Dec 2015]
7 *) X509_ATTRIBUTE memory leak
9 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak
10 memory. This structure is used by the PKCS#7 and CMS routines so any
11 application which reads PKCS#7 or CMS data from untrusted sources is
12 affected. SSL/TLS is not affected.
14 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using
19 Changes between 0.9.8zf and 0.9.8zg [11 Jun 2015]
21 *) Malformed ECParameters causes infinite loop
23 When processing an ECParameters structure OpenSSL enters an infinite loop
24 if the curve specified is over a specially malformed binary polynomial
27 This can be used to perform denial of service against any
28 system which processes public keys, certificate requests or
29 certificates. This includes TLS clients and TLS servers with
30 client authentication enabled.
32 This issue was reported to OpenSSL by Joseph Barr-Pixton.
36 *) Exploitable out-of-bounds read in X509_cmp_time
38 X509_cmp_time does not properly check the length of the ASN1_TIME
39 string and can read a few bytes out of bounds. In addition,
40 X509_cmp_time accepts an arbitrary number of fractional seconds in the
43 An attacker can use this to craft malformed certificates and CRLs of
44 various sizes and potentially cause a segmentation fault, resulting in
45 a DoS on applications that verify certificates or CRLs. TLS clients
46 that verify CRLs are affected. TLS clients and servers with client
47 authentication enabled may be affected if they use custom verification
50 This issue was reported to OpenSSL by Robert Swiecki (Google), and
51 independently by Hanno Böck.
55 *) PKCS7 crash with missing EnvelopedContent
57 The PKCS#7 parsing code does not handle missing inner EncryptedContent
58 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs
59 with missing content and trigger a NULL pointer dereference on parsing.
61 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7
62 structures from untrusted sources are affected. OpenSSL clients and
63 servers are not affected.
65 This issue was reported to OpenSSL by Michal Zalewski (Google).
69 *) CMS verify infinite loop with unknown hash function
71 When verifying a signedData message the CMS code can enter an infinite loop
72 if presented with an unknown hash function OID. This can be used to perform
73 denial of service against any system which verifies signedData messages using
75 This issue was reported to OpenSSL by Johannes Bauer.
79 *) Race condition handling NewSessionTicket
81 If a NewSessionTicket is received by a multi-threaded client when attempting to
82 reuse a previous ticket then a race condition can occur potentially leading to
83 a double free of the ticket data.
87 Changes between 0.9.8ze and 0.9.8zf [19 Mar 2015]
89 *) Segmentation fault in ASN1_TYPE_cmp fix
91 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is
92 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check
93 certificate signature algorithm consistency this can be used to crash any
94 certificate verification operation and exploited in a DoS attack. Any
95 application which performs certificate verification is vulnerable including
96 OpenSSL clients and servers which enable client authentication.
100 *) ASN.1 structure reuse memory corruption fix
102 Reusing a structure in ASN.1 parsing may allow an attacker to cause
103 memory corruption via an invalid write. Such reuse is and has been
104 strongly discouraged and is believed to be rare.
106 Applications that parse structures containing CHOICE or ANY DEFINED BY
107 components may be affected. Certificate parsing (d2i_X509 and related
108 functions) are however not affected. OpenSSL clients and servers are
113 *) PKCS7 NULL pointer dereferences fix
115 The PKCS#7 parsing code does not handle missing outer ContentInfo
116 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with
117 missing content and trigger a NULL pointer dereference on parsing.
119 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or
120 otherwise parse PKCS#7 structures from untrusted sources are
121 affected. OpenSSL clients and servers are not affected.
123 This issue was reported to OpenSSL by Michal Zalewski (Google).
127 *) DoS via reachable assert in SSLv2 servers fix
129 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in
130 servers that both support SSLv2 and enable export cipher suites by sending
131 a specially crafted SSLv2 CLIENT-MASTER-KEY message.
133 This issue was discovered by Sean Burford (Google) and Emilia Käsper
134 (OpenSSL development team).
138 *) Use After Free following d2i_ECPrivatekey error fix
140 A malformed EC private key file consumed via the d2i_ECPrivateKey function
141 could cause a use after free condition. This, in turn, could cause a double
142 free in several private key parsing functions (such as d2i_PrivateKey
143 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption
144 for applications that receive EC private keys from untrusted
145 sources. This scenario is considered rare.
147 This issue was discovered by the BoringSSL project and fixed in their
152 *) X509_to_X509_REQ NULL pointer deref fix
154 The function X509_to_X509_REQ will crash with a NULL pointer dereference if
155 the certificate key is invalid. This function is rarely used in practice.
157 This issue was discovered by Brian Carpenter.
161 *) Removed the export and SSLv2 ciphers from the DEFAULT ciphers
164 Changes between 0.9.8zd and 0.9.8ze [15 Jan 2015]
166 *) Build fixes for the Windows and OpenVMS platforms
167 [Matt Caswell and Richard Levitte]
169 Changes between 0.9.8zc and 0.9.8zd [8 Jan 2015]
171 *) Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS
172 message can cause a segmentation fault in OpenSSL due to a NULL pointer
173 dereference. This could lead to a Denial Of Service attack. Thanks to
174 Markus Stenberg of Cisco Systems, Inc. for reporting this issue.
178 *) Fix issue where no-ssl3 configuration sets method to NULL. When openssl is
179 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl
180 method would be set to NULL which could later result in a NULL pointer
181 dereference. Thanks to Frank Schmirler for reporting this issue.
185 *) Abort handshake if server key exchange message is omitted for ephemeral
188 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for
189 reporting this issue.
193 *) Remove non-export ephemeral RSA code on client and server. This code
194 violated the TLS standard by allowing the use of temporary RSA keys in
195 non-export ciphersuites and could be used by a server to effectively
196 downgrade the RSA key length used to a value smaller than the server
197 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at
198 INRIA or reporting this issue.
202 *) Fix various certificate fingerprint issues.
204 By using non-DER or invalid encodings outside the signed portion of a
205 certificate the fingerprint can be changed without breaking the signature.
206 Although no details of the signed portion of the certificate can be changed
207 this can cause problems with some applications: e.g. those using the
208 certificate fingerprint for blacklists.
210 1. Reject signatures with non zero unused bits.
212 If the BIT STRING containing the signature has non zero unused bits reject
213 the signature. All current signature algorithms require zero unused bits.
215 2. Check certificate algorithm consistency.
217 Check the AlgorithmIdentifier inside TBS matches the one in the
218 certificate signature. NB: this will result in signature failure
219 errors for some broken certificates.
221 Thanks to Konrad Kraszewski from Google for reporting this issue.
223 3. Check DSA/ECDSA signatures use DER.
225 Reencode DSA/ECDSA signatures and compare with the original received
226 signature. Return an error if there is a mismatch.
228 This will reject various cases including garbage after signature
229 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS
230 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs
231 (negative or with leading zeroes).
233 Further analysis was conducted and fixes were developed by Stephen Henson
234 of the OpenSSL core team.
239 *) Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect
240 results on some platforms, including x86_64. This bug occurs at random
241 with a very low probability, and is not known to be exploitable in any
242 way, though its exact impact is difficult to determine. Thanks to Pieter
243 Wuille (Blockstream) who reported this issue and also suggested an initial
244 fix. Further analysis was conducted by the OpenSSL development team and
245 Adam Langley of Google. The final fix was developed by Andy Polyakov of
246 the OpenSSL core team.
250 Changes between 0.9.8zb and 0.9.8zc [15 Oct 2014]
252 *) Session Ticket Memory Leak.
254 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the
255 integrity of that ticket is first verified. In the event of a session
256 ticket integrity check failing, OpenSSL will fail to free memory
257 causing a memory leak. By sending a large number of invalid session
258 tickets an attacker could exploit this issue in a Denial Of Service
263 *) Build option no-ssl3 is incomplete.
265 When OpenSSL is configured with "no-ssl3" as a build option, servers
266 could accept and complete a SSL 3.0 handshake, and clients could be
267 configured to send them.
269 [Akamai and the OpenSSL team]
271 *) Add support for TLS_FALLBACK_SCSV.
272 Client applications doing fallback retries should call
273 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV).
275 [Adam Langley, Bodo Moeller]
277 *) Add additional DigestInfo checks.
279 Reencode DigestInto in DER and check against the original when
280 verifying RSA signature: this will reject any improperly encoded
281 DigestInfo structures.
283 Note: this is a precautionary measure and no attacks are currently known.
287 Changes between 0.9.8za and 0.9.8zb [6 Aug 2014]
289 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject
290 to a denial of service attack. A malicious server can crash the client
291 with a null pointer dereference (read) by specifying an anonymous (EC)DH
292 ciphersuite and sending carefully crafted handshake messages.
294 Thanks to Felix Gröbert (Google) for discovering and researching this
299 *) By sending carefully crafted DTLS packets an attacker could cause openssl
300 to leak memory. This can be exploited through a Denial of Service attack.
301 Thanks to Adam Langley for discovering and researching this issue.
305 *) An attacker can force openssl to consume large amounts of memory whilst
306 processing DTLS handshake messages. This can be exploited through a
307 Denial of Service attack.
308 Thanks to Adam Langley for discovering and researching this issue.
312 *) An attacker can force an error condition which causes openssl to crash
313 whilst processing DTLS packets due to memory being freed twice. This
314 can be exploited through a Denial of Service attack.
315 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching
320 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as
321 X509_name_oneline, X509_name_print_ex et al. to leak some information
322 from the stack. Applications may be affected if they echo pretty printing
323 output to the attacker.
325 Thanks to Ivan Fratric (Google) for discovering this issue.
327 [Emilia Käsper, and Steve Henson]
329 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
330 for corner cases. (Certain input points at infinity could lead to
331 bogus results, with non-infinity inputs mapped to infinity too.)
334 Changes between 0.9.8y and 0.9.8za [5 Jun 2014]
336 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
337 handshake can force the use of weak keying material in OpenSSL
338 SSL/TLS clients and servers.
340 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
341 researching this issue. (CVE-2014-0224)
342 [KIKUCHI Masashi, Steve Henson]
344 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
345 OpenSSL DTLS client the code can be made to recurse eventually crashing
348 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
350 [Imre Rad, Steve Henson]
352 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
353 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
354 client or server. This is potentially exploitable to run arbitrary
355 code on a vulnerable client or server.
357 Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195)
358 [Jüri Aedla, Steve Henson]
360 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
361 are subject to a denial of service attack.
363 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
364 this issue. (CVE-2014-3470)
365 [Felix Gröbert, Ivan Fratric, Steve Henson]
367 *) Fix for the attack described in the paper "Recovering OpenSSL
368 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
369 by Yuval Yarom and Naomi Benger. Details can be obtained from:
370 http://eprint.iacr.org/2014/140
372 Thanks to Yuval Yarom and Naomi Benger for discovering this
373 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
374 [Yuval Yarom and Naomi Benger]
376 Thanks to mancha for backporting the fix to the 0.9.8 branch.
378 *) Fix handling of warning-level alerts in SSL23 client mode so they
379 don't cause client-side termination (eg. on SNI unrecognized_name
380 warnings). Add client and server support for six additional alerts
381 per RFC 6066 and RFC 4279.
384 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
385 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
386 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
387 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
388 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
389 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
390 [Rob Stradling, Adam Langley]
392 Changes between 0.9.8x and 0.9.8y [5 Feb 2013]
394 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
396 This addresses the flaw in CBC record processing discovered by
397 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
398 at: http://www.isg.rhul.ac.uk/tls/
400 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
401 Security Group at Royal Holloway, University of London
402 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
403 Emilia Käsper for the initial patch.
405 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
407 *) Return an error when checking OCSP signatures when key is NULL.
408 This fixes a DoS attack. (CVE-2013-0166)
411 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
412 the right response is stapled. Also change SSL_get_certificate()
413 so it returns the certificate actually sent.
414 See http://rt.openssl.org/Ticket/Display.html?id=2836.
416 [Rob Stradling <rob.stradling@comodo.com>]
418 *) Fix possible deadlock when decoding public keys.
421 Changes between 0.9.8w and 0.9.8x [10 May 2012]
423 *) Sanity check record length before skipping explicit IV in DTLS
426 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
427 fuzzing as a service testing platform.
431 *) Initialise tkeylen properly when encrypting CMS messages.
432 Thanks to Solar Designer of Openwall for reporting this issue.
435 Changes between 0.9.8v and 0.9.8w [23 Apr 2012]
437 *) The fix for CVE-2012-2110 did not take into account that the
438 'len' argument to BUF_MEM_grow and BUF_MEM_grow_clean is an
439 int in OpenSSL 0.9.8, making it still vulnerable. Fix by
440 rejecting negative len parameter. (CVE-2012-2131)
441 [Tomas Hoger <thoger@redhat.com>]
443 Changes between 0.9.8u and 0.9.8v [19 Apr 2012]
445 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
446 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
447 in CRYPTO_realloc_clean.
449 Thanks to Tavis Ormandy, Google Security Team, for discovering this
450 issue and to Adam Langley <agl@chromium.org> for fixing it.
452 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
454 Changes between 0.9.8t and 0.9.8u [12 Mar 2012]
456 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
457 in CMS and PKCS7 code. When RSA decryption fails use a random key for
458 content decryption and always return the same error. Note: this attack
459 needs on average 2^20 messages so it only affects automated senders. The
460 old behaviour can be reenabled in the CMS code by setting the
461 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
462 an MMA defence is not necessary.
463 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
464 this issue. (CVE-2012-0884)
467 *) Fix CVE-2011-4619: make sure we really are receiving a
468 client hello before rejecting multiple SGC restarts. Thanks to
469 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
472 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
474 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
475 Thanks to Antonio Martin, Enterprise Secure Access Research and
476 Development, Cisco Systems, Inc. for discovering this bug and
477 preparing a fix. (CVE-2012-0050)
480 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
482 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
483 of the Vaudenay padding oracle attack on CBC mode encryption
484 which enables an efficient plaintext recovery attack against
485 the OpenSSL implementation of DTLS. Their attack exploits timing
486 differences arising during decryption processing. A research
487 paper describing this attack can be found at:
488 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
489 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
490 Security Group at Royal Holloway, University of London
491 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
492 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
493 for preparing the fix. (CVE-2011-4108)
494 [Robin Seggelmann, Michael Tuexen]
496 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
497 [Ben Laurie, Kasper <ekasper@google.com>]
499 *) Clear bytes used for block padding of SSL 3.0 records.
501 [Adam Langley (Google)]
503 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
504 Kadianakis <desnacked@gmail.com> for discovering this issue and
505 Adam Langley for preparing the fix. (CVE-2011-4619)
506 [Adam Langley (Google)]
508 *) Prevent malformed RFC3779 data triggering an assertion failure.
509 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
510 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
511 [Rob Austein <sra@hactrn.net>]
513 *) Fix ssl_ciph.c set-up race.
514 [Adam Langley (Google)]
516 *) Fix spurious failures in ecdsatest.c.
517 [Emilia Käsper (Google)]
519 *) Fix the BIO_f_buffer() implementation (which was mixing different
520 interpretations of the '..._len' fields).
521 [Adam Langley (Google)]
523 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
524 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
525 threads won't reuse the same blinding coefficients.
527 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
528 lock to call BN_BLINDING_invert_ex, and avoids one use of
529 BN_BLINDING_update for each BN_BLINDING structure (previously,
530 the last update always remained unused).
531 [Emilia Käsper (Google)]
533 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
534 for multi-threaded use of ECDH.
535 [Adam Langley (Google)]
537 *) Fix x509_name_ex_d2i memory leak on bad inputs.
540 *) Add protection against ECDSA timing attacks as mentioned in the paper
541 by Billy Bob Brumley and Nicola Tuveri, see:
543 http://eprint.iacr.org/2011/232.pdf
545 [Billy Bob Brumley and Nicola Tuveri]
547 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
549 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
550 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
552 *) Fix bug in string printing code: if *any* escaping is enabled we must
553 escape the escape character (backslash) or the resulting string is
557 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
559 *) Disable code workaround for ancient and obsolete Netscape browsers
560 and servers: an attacker can use it in a ciphersuite downgrade attack.
561 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
564 *) Fixed J-PAKE implementation error, originally discovered by
565 Sebastien Martini, further info and confirmation from Stefan
566 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
569 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
571 *) Fix extension code to avoid race conditions which can result in a buffer
572 overrun vulnerability: resumed sessions must not be modified as they can
573 be shared by multiple threads. CVE-2010-3864
576 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
579 *) Don't reencode certificate when calculating signature: cache and use
580 the original encoding instead. This makes signature verification of
581 some broken encodings work correctly.
584 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
585 is also one of the inputs.
586 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
588 *) Don't repeatedly append PBE algorithms to table if they already exist.
589 Sort table on each new add. This effectively makes the table read only
590 after all algorithms are added and subsequent calls to PKCS12_pbe_add
594 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
596 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
599 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
600 access or freeing data twice (CVE-2010-0742)
601 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
603 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
604 common in certificates and some applications which only call
605 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
609 Reduce copying into .apps and .test in makevms.com
610 Don't try to use blank CA certificate in CA.com
611 Allow use of C files from original directories in maketests.com
612 [Steven M. Schweda" <sms@antinode.info>]
614 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
616 *) When rejecting SSL/TLS records due to an incorrect version number, never
617 update s->server with a new major version number. As of
618 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
619 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
620 the previous behavior could result in a read attempt at NULL when
621 receiving specific incorrect SSL/TLS records once record payload
622 protection is active. (CVE-2010-0740)
623 [Bodo Moeller, Adam Langley <agl@chromium.org>]
625 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
626 could be crashed if the relevant tables were not present (e.g. chrooted).
627 [Tomas Hoger <thoger@redhat.com>]
629 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
631 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
632 [Martin Olsson, Neel Mehta]
634 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
635 accommodate for stack sorting, always a write lock!).
638 *) On some versions of WIN32 Heap32Next is very slow. This can cause
639 excessive delays in the RAND_poll(): over a minute. As a workaround
640 include a time check in the inner Heap32Next loop too.
643 *) The code that handled flushing of data in SSL/TLS originally used the
644 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
645 the problem outlined in PR#1949. The fix suggested there however can
646 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
647 of Apache). So instead simplify the code to flush unconditionally.
648 This should be fine since flushing with no data to flush is a no op.
651 *) Handle TLS versions 2.0 and later properly and correctly use the
652 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
653 off ancient servers have a habit of sticking around for a while...
656 *) Modify compression code so it frees up structures without using the
657 ex_data callbacks. This works around a problem where some applications
658 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
659 restarting) then use compression (e.g. SSL with compression) later.
660 This results in significant per-connection memory leaks and
661 has caused some security issues including CVE-2008-1678 and
665 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
666 change when encrypting or decrypting.
669 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
670 connect and renegotiate with servers which do not support RI.
671 Until RI is more widely deployed this option is enabled by default.
674 *) Add "missing" ssl ctrls to clear options and mode.
677 *) If client attempts to renegotiate and doesn't support RI respond with
678 a no_renegotiation alert as required by RFC5746. Some renegotiating
679 TLS clients will continue a connection gracefully when they receive
680 the alert. Unfortunately OpenSSL mishandled this alert and would hang
681 waiting for a server hello which it will never receive. Now we treat a
682 received no_renegotiation alert as a fatal error. This is because
683 applications requesting a renegotiation might well expect it to succeed
684 and would have no code in place to handle the server denying it so the
685 only safe thing to do is to terminate the connection.
688 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
689 peer supports secure renegotiation and 0 otherwise. Print out peer
690 renegotiation support in s_client/s_server.
693 *) Replace the highly broken and deprecated SPKAC certification method with
694 the updated NID creation version. This should correctly handle UTF8.
697 *) Implement RFC5746. Re-enable renegotiation but require the extension
698 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
699 turns out to be a bad idea. It has been replaced by
700 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
701 SSL_CTX_set_options(). This is really not recommended unless you
702 know what you are doing.
703 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
705 *) Fixes to stateless session resumption handling. Use initial_ctx when
706 issuing and attempting to decrypt tickets in case it has changed during
707 servername handling. Use a non-zero length session ID when attempting
708 stateless session resumption: this makes it possible to determine if
709 a resumption has occurred immediately after receiving server hello
710 (several places in OpenSSL subtly assume this) instead of later in
714 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
715 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
716 fixes for a few places where the return code is not checked
718 [Julia Lawall <julia@diku.dk>]
720 *) Add --strict-warnings option to Configure script to include devteam
721 warnings in other configurations.
724 *) Add support for --libdir option and LIBDIR variable in makefiles. This
725 makes it possible to install openssl libraries in locations which
726 have names other than "lib", for example "/usr/lib64" which some
728 [Steve Henson, based on patch from Jeremy Utley]
730 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
731 X690 8.9.12 and can produce some misleading textual output of OIDs.
732 [Steve Henson, reported by Dan Kaminsky]
734 *) Delete MD2 from algorithm tables. This follows the recommendation in
735 several standards that it is not used in new applications due to
736 several cryptographic weaknesses. For binary compatibility reasons
737 the MD2 API is still compiled in by default.
740 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
744 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
745 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
747 [Guenter <lists@gknw.net>]
749 *) Fix the server certificate chain building code to use X509_verify_cert(),
750 it used to have an ad-hoc builder which was unable to cope with anything
751 other than a simple chain.
752 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
754 *) Don't check self signed certificate signatures in X509_verify_cert()
755 by default (a flag can override this): it just wastes time without
756 adding any security. As a useful side effect self signed root CAs
757 with non-FIPS digests are now usable in FIPS mode.
760 *) In dtls1_process_out_of_seq_message() the check if the current message
761 is already buffered was missing. For every new message was memory
762 allocated, allowing an attacker to perform an denial of service attack
763 with sending out of seq handshake messages until there is no memory
764 left. Additionally every future messege was buffered, even if the
765 sequence number made no sense and would be part of another handshake.
766 So only messages with sequence numbers less than 10 in advance will be
767 buffered. (CVE-2009-1378)
768 [Robin Seggelmann, discovered by Daniel Mentz]
770 *) Records are buffered if they arrive with a future epoch to be
771 processed after finishing the corresponding handshake. There is
772 currently no limitation to this buffer allowing an attacker to perform
773 a DOS attack with sending records with future epochs until there is no
774 memory left. This patch adds the pqueue_size() function to detemine
775 the size of a buffer and limits the record buffer to 100 entries.
777 [Robin Seggelmann, discovered by Daniel Mentz]
779 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
780 parent structure is freed. (CVE-2009-1379)
783 *) Handle non-blocking I/O properly in SSL_shutdown() call.
784 [Darryl Miles <darryl-mailinglists@netbauds.net>]
787 [Ilya O. <vrghost@gmail.com>]
789 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
791 *) Disable renegotiation completely - this fixes a severe security
792 problem (CVE-2009-3555) at the cost of breaking all
793 renegotiation. Renegotiation can be re-enabled by setting
794 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
795 run-time. This is really not recommended unless you know what
799 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
801 *) Don't set val to NULL when freeing up structures, it is freed up by
802 underlying code. If sizeof(void *) > sizeof(long) this can result in
803 zeroing past the valid field. (CVE-2009-0789)
804 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
806 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
807 checked correctly. This would allow some invalid signed attributes to
808 appear to verify correctly. (CVE-2009-0591)
809 [Ivan Nestlerode <inestlerode@us.ibm.com>]
811 *) Reject UniversalString and BMPString types with invalid lengths. This
812 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
813 a legal length. (CVE-2009-0590)
816 *) Set S/MIME signing as the default purpose rather than setting it
817 unconditionally. This allows applications to override it at the store
821 *) Permit restricted recursion of ASN1 strings. This is needed in practice
822 to handle some structures.
825 *) Improve efficiency of mem_gets: don't search whole buffer each time
827 [Jeremy Shapiro <jnshapir@us.ibm.com>]
829 *) New -hex option for openssl rand.
832 *) Print out UTF8String and NumericString when parsing ASN1.
835 *) Support NumericString type for name components.
838 *) Allow CC in the environment to override the automatically chosen
839 compiler. Note that nothing is done to ensure flags work with the
843 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
845 *) Properly check EVP_VerifyFinal() and similar return values
847 [Ben Laurie, Bodo Moeller, Google Security Team]
849 *) Enable TLS extensions by default.
852 *) Allow the CHIL engine to be loaded, whether the application is
853 multithreaded or not. (This does not release the developer from the
854 obligation to set up the dynamic locking callbacks.)
855 [Sander Temme <sander@temme.net>]
857 *) Use correct exit code if there is an error in dgst command.
858 [Steve Henson; problem pointed out by Roland Dirlewanger]
860 *) Tweak Configure so that you need to say "experimental-jpake" to enable
861 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
864 *) Add experimental JPAKE support, including demo authentication in
865 s_client and s_server.
868 *) Set the comparison function in v3_addr_canonize().
869 [Rob Austein <sra@hactrn.net>]
871 *) Add support for XMPP STARTTLS in s_client.
872 [Philip Paeps <philip@freebsd.org>]
874 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
875 to ensure that even with this option, only ciphersuites in the
876 server's preference list will be accepted. (Note that the option
877 applies only when resuming a session, so the earlier behavior was
878 just about the algorithm choice for symmetric cryptography.)
881 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
883 *) Fix NULL pointer dereference if a DTLS server received
884 ChangeCipherSpec as first record (CVE-2009-1386).
887 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
888 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
891 *) The fix in 0.9.8c that supposedly got rid of unsafe
892 double-checked locking was incomplete for RSA blinding,
893 addressing just one layer of what turns out to have been
894 doubly unsafe triple-checked locking.
896 So now fix this for real by retiring the MONT_HELPER macro
897 in crypto/rsa/rsa_eay.c.
899 [Bodo Moeller; problem pointed out by Marius Schilder]
901 *) Various precautionary measures:
903 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
905 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
906 (NB: This would require knowledge of the secret session ticket key
907 to exploit, in which case you'd be SOL either way.)
909 - Change bn_nist.c so that it will properly handle input BIGNUMs
910 outside the expected range.
912 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
915 [Neel Mehta, Bodo Moeller]
917 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
918 the load fails. Useful for distros.
919 [Ben Laurie and the FreeBSD team]
921 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
924 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
927 *) Expand ENGINE to support engine supplied SSL client certificate functions.
929 This work was sponsored by Logica.
932 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
933 keystores. Support for SSL/TLS client authentication too.
934 Not compiled unless enable-capieng specified to Configure.
936 This work was sponsored by Logica.
939 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
940 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
941 attribute creation routines such as certifcate requests and PKCS#12
945 Changes between 0.9.8g and 0.9.8h [28 May 2008]
947 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
948 handshake which could lead to a cilent crash as found using the
949 Codenomicon TLS test suite (CVE-2008-1672)
950 [Steve Henson, Mark Cox]
952 *) Fix double free in TLS server name extensions which could lead to
953 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
956 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
958 Clear the error queue to ensure that error entries left from
959 older function calls do not interfere with the correct operation.
960 [Lutz Jaenicke, Erik de Castro Lopo]
962 *) Remove root CA certificates of commercial CAs:
964 The OpenSSL project does not recommend any specific CA and does not
965 have any policy with respect to including or excluding any CA.
966 Therefore it does not make any sense to ship an arbitrary selection
967 of root CA certificates with the OpenSSL software.
970 *) RSA OAEP patches to fix two separate invalid memory reads.
971 The first one involves inputs when 'lzero' is greater than
972 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
973 before the beginning of from). The second one involves inputs where
974 the 'db' section contains nothing but zeroes (there is a one-byte
975 invalid read after the end of 'db').
976 [Ivan Nestlerode <inestlerode@us.ibm.com>]
978 *) Partial backport from 0.9.9-dev:
980 Introduce bn_mul_mont (dedicated Montgomery multiplication
981 procedure) as a candidate for BIGNUM assembler implementation.
982 While 0.9.9-dev uses assembler for various architectures, only
983 x86_64 is available by default here in the 0.9.8 branch, and
984 32-bit x86 is available through a compile-time setting.
986 To try the 32-bit x86 assembler implementation, use Configure
987 option "enable-montasm" (which exists only for this backport).
989 As "enable-montasm" for 32-bit x86 disclaims code stability
990 anyway, in this constellation we activate additional code
991 backported from 0.9.9-dev for further performance improvements,
992 namely BN_from_montgomery_word. (To enable this otherwise,
993 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
995 [Andy Polyakov (backport partially by Bodo Moeller)]
997 *) Add TLS session ticket callback. This allows an application to set
998 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
999 values. This is useful for key rollover for example where several key
1000 sets may exist with different names.
1003 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1004 This was broken until now in 0.9.8 releases, such that the only way
1005 a registered ENGINE could be used (assuming it initialises
1006 successfully on the host) was to explicitly set it as the default
1007 for the relevant algorithms. This is in contradiction with 0.9.7
1008 behaviour and the documentation. With this fix, when an ENGINE is
1009 registered into a given algorithm's table of implementations, the
1010 'uptodate' flag is reset so that auto-discovery will be used next
1011 time a new context for that algorithm attempts to select an
1013 [Ian Lister (tweaked by Geoff Thorpe)]
1015 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1016 implemention in the following ways:
1018 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1021 Lack of BER streaming support means one pass streaming processing is
1022 only supported if data is detached: setting the streaming flag is
1023 ignored for embedded content.
1025 CMS support is disabled by default and must be explicitly enabled
1026 with the enable-cms configuration option.
1029 *) Update the GMP engine glue to do direct copies between BIGNUM and
1030 mpz_t when openssl and GMP use the same limb size. Otherwise the
1031 existing "conversion via a text string export" trick is still used.
1032 [Paul Sheer <paulsheer@gmail.com>]
1034 *) Zlib compression BIO. This is a filter BIO which compressed and
1035 uncompresses any data passed through it.
1038 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1039 RFC3394 compatible AES key wrapping.
1042 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1043 sets string data without copying. X509_ALGOR_set0() and
1044 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1045 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1046 from an X509_ATTRIBUTE structure optionally checking it occurs only
1047 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1051 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1052 to get the expected BN_FLG_CONSTTIME behavior.
1053 [Bodo Moeller (Google)]
1057 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1058 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1059 - added some more tests to do_tests.pl
1060 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1061 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1062 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1063 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1064 - various changes to netware.pl to enable gcc-cross builds on Win32
1066 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1067 - various changes to fix missing prototype warnings
1068 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1069 - added AES, WHIRLPOOL and CPUID assembler code to build files
1070 - added missing AES assembler make rules to mk1mf.pl
1071 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1072 [Guenter Knauf <eflash@gmx.net>]
1074 *) Implement certificate status request TLS extension defined in RFC3546.
1075 A client can set the appropriate parameters and receive the encoded
1076 OCSP response via a callback. A server can query the supplied parameters
1077 and set the encoded OCSP response in the callback. Add simplified examples
1078 to s_client and s_server.
1081 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1083 *) Fix various bugs:
1084 + Binary incompatibility of ssl_ctx_st structure
1085 + DTLS interoperation with non-compliant servers
1086 + Don't call get_session_cb() without proposed session
1087 + Fix ia64 assembler code
1088 [Andy Polyakov, Steve Henson]
1090 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1092 *) DTLS Handshake overhaul. There were longstanding issues with
1093 OpenSSL DTLS implementation, which were making it impossible for
1094 RFC 4347 compliant client to communicate with OpenSSL server.
1095 Unfortunately just fixing these incompatibilities would "cut off"
1096 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1097 server keeps tolerating non RFC compliant syntax. The opposite is
1098 not true, 0.9.8f client can not communicate with earlier server.
1099 This update even addresses CVE-2007-4995.
1102 *) Changes to avoid need for function casts in OpenSSL: some compilers
1103 (gcc 4.2 and later) reject their use.
1104 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1107 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1108 RFC4507bis. The encrypted ticket format is an encrypted encoded
1109 SSL_SESSION structure, that way new session features are automatically
1112 If a client application caches session in an SSL_SESSION structure
1113 support is transparent because tickets are now stored in the encoded
1116 The SSL_CTX structure automatically generates keys for ticket
1117 protection in servers so again support should be possible
1118 with no application modification.
1120 If a client or server wishes to disable RFC4507 support then the option
1121 SSL_OP_NO_TICKET can be set.
1123 Add a TLS extension debugging callback to allow the contents of any client
1124 or server extensions to be examined.
1126 This work was sponsored by Google.
1129 *) Add initial support for TLS extensions, specifically for the server_name
1130 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1131 have new members for a host name. The SSL data structure has an
1132 additional member SSL_CTX *initial_ctx so that new sessions can be
1133 stored in that context to allow for session resumption, even after the
1134 SSL has been switched to a new SSL_CTX in reaction to a client's
1135 server_name extension.
1137 New functions (subject to change):
1139 SSL_get_servername()
1140 SSL_get_servername_type()
1143 New CTRL codes and macros (subject to change):
1145 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1146 - SSL_CTX_set_tlsext_servername_callback()
1147 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1148 - SSL_CTX_set_tlsext_servername_arg()
1149 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1151 openssl s_client has a new '-servername ...' option.
1153 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1154 '-key2 ...', '-servername_fatal' (subject to change). This allows
1155 testing the HostName extension for a specific single host name ('-cert'
1156 and '-key' remain fallbacks for handshakes without HostName
1157 negotiation). If the unrecogninzed_name alert has to be sent, this by
1158 default is a warning; it becomes fatal with the '-servername_fatal'
1161 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1163 *) Add AES and SSE2 assembly language support to VC++ build.
1166 *) Mitigate attack on final subtraction in Montgomery reduction.
1169 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1170 (which previously caused an internal error).
1173 *) Squeeze another 10% out of IGE mode when in != out.
1176 *) AES IGE mode speedup.
1177 [Dean Gaudet (Google)]
1179 *) Add the Korean symmetric 128-bit cipher SEED (see
1180 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1181 add SEED ciphersuites from RFC 4162:
1183 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1184 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1185 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1186 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1188 To minimize changes between patchlevels in the OpenSSL 0.9.8
1189 series, SEED remains excluded from compilation unless OpenSSL
1190 is configured with 'enable-seed'.
1191 [KISA, Bodo Moeller]
1193 *) Mitigate branch prediction attacks, which can be practical if a
1194 single processor is shared, allowing a spy process to extract
1195 information. For detailed background information, see
1196 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1197 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1198 and Necessary Software Countermeasures"). The core of the change
1199 are new versions BN_div_no_branch() and
1200 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1201 respectively, which are slower, but avoid the security-relevant
1202 conditional branches. These are automatically called by BN_div()
1203 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1204 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1205 remove a conditional branch.
1207 BN_FLG_CONSTTIME is the new name for the previous
1208 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1209 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1210 in the exponent causes BN_mod_exp_mont() to use the alternative
1211 implementation in BN_mod_exp_mont_consttime().) The old name
1212 remains as a deprecated alias.
1214 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1215 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1216 constant-time implementations for more than just exponentiation.
1217 Here too the old name is kept as a deprecated alias.
1219 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1220 the BN_BLINDING structure gets an independent copy of the
1221 modulus. This means that the previous "BIGNUM *m" argument to
1222 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1223 essentially becomes "const BIGNUM *m", although we can't actually
1224 change this in the header file before 0.9.9. It allows
1225 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1226 enable BN_FLG_CONSTTIME.
1228 [Matthew D Wood (Intel Corp)]
1230 *) In the SSL/TLS server implementation, be strict about session ID
1231 context matching (which matters if an application uses a single
1232 external cache for different purposes). Previously,
1233 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1234 set. This did ensure strict client verification, but meant that,
1235 with applications using a single external cache for quite
1236 different requirements, clients could circumvent ciphersuite
1237 restrictions for a given session ID context by starting a session
1238 in a different context.
1241 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1242 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1243 authentication-only ciphersuites.
1246 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1247 not complete and could lead to a possible single byte overflow
1248 (CVE-2007-5135) [Ben Laurie]
1250 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
1252 *) Since AES128 and AES256 (and similarly Camellia128 and
1253 Camellia256) share a single mask bit in the logic of
1254 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
1255 kludge to work properly if AES128 is available and AES256 isn't
1256 (or if Camellia128 is available and Camellia256 isn't).
1259 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
1260 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
1261 When a point or a seed is encoded in a BIT STRING, we need to
1262 prevent the removal of trailing zero bits to get the proper DER
1263 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
1264 of a NamedBitList, for which trailing 0 bits need to be removed.)
1267 *) Have SSL/TLS server implementation tolerate "mismatched" record
1268 protocol version while receiving ClientHello even if the
1269 ClientHello is fragmented. (The server can't insist on the
1270 particular protocol version it has chosen before the ServerHello
1271 message has informed the client about his choice.)
1274 *) Add RFC 3779 support.
1275 [Rob Austein for ARIN, Ben Laurie]
1277 *) Load error codes if they are not already present instead of using a
1278 static variable. This allows them to be cleanly unloaded and reloaded.
1279 Improve header file function name parsing.
1282 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
1283 or CAPABILITY handshake as required by RFCs.
1286 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
1288 *) Introduce limits to prevent malicious keys being able to
1289 cause a denial of service. (CVE-2006-2940)
1290 [Steve Henson, Bodo Moeller]
1292 *) Fix ASN.1 parsing of certain invalid structures that can result
1293 in a denial of service. (CVE-2006-2937) [Steve Henson]
1295 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
1296 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
1298 *) Fix SSL client code which could crash if connecting to a
1299 malicious SSLv2 server. (CVE-2006-4343)
1300 [Tavis Ormandy and Will Drewry, Google Security Team]
1302 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
1303 match only those. Before that, "AES256-SHA" would be interpreted
1304 as a pattern and match "AES128-SHA" too (since AES128-SHA got
1305 the same strength classification in 0.9.7h) as we currently only
1306 have a single AES bit in the ciphersuite description bitmap.
1307 That change, however, also applied to ciphersuite strings such as
1308 "RC4-MD5" that intentionally matched multiple ciphersuites --
1309 namely, SSL 2.0 ciphersuites in addition to the more common ones
1310 from SSL 3.0/TLS 1.0.
1312 So we change the selection algorithm again: Naming an explicit
1313 ciphersuite selects this one ciphersuite, and any other similar
1314 ciphersuite (same bitmap) from *other* protocol versions.
1315 Thus, "RC4-MD5" again will properly select both the SSL 2.0
1316 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
1318 Since SSL 2.0 does not have any ciphersuites for which the
1319 128/256 bit distinction would be relevant, this works for now.
1320 The proper fix will be to use different bits for AES128 and
1321 AES256, which would have avoided the problems from the beginning;
1322 however, bits are scarce, so we can only do this in a new release
1323 (not just a patchlevel) when we can change the SSL_CIPHER
1324 definition to split the single 'unsigned long mask' bitmap into
1325 multiple values to extend the available space.
1329 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
1331 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
1332 (CVE-2006-4339) [Ben Laurie and Google Security Team]
1334 *) Add AES IGE and biIGE modes.
1337 *) Change the Unix randomness entropy gathering to use poll() when
1338 possible instead of select(), since the latter has some
1339 undesirable limitations.
1340 [Darryl Miles via Richard Levitte and Bodo Moeller]
1342 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
1343 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
1344 cannot be implicitly activated as part of, e.g., the "AES" alias.
1345 However, please upgrade to OpenSSL 0.9.9[-dev] for
1346 non-experimental use of the ECC ciphersuites to get TLS extension
1347 support, which is required for curve and point format negotiation
1348 to avoid potential handshake problems.
1351 *) Disable rogue ciphersuites:
1353 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1354 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1355 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1357 The latter two were purportedly from
1358 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1361 Also deactivate the remaining ciphersuites from
1362 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1363 unofficial, and the ID has long expired.
1366 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1367 dual-core machines) and other potential thread-safety issues.
1370 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
1371 versions), which is now available for royalty-free use
1372 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
1373 Also, add Camellia TLS ciphersuites from RFC 4132.
1375 To minimize changes between patchlevels in the OpenSSL 0.9.8
1376 series, Camellia remains excluded from compilation unless OpenSSL
1377 is configured with 'enable-camellia'.
1380 *) Disable the padding bug check when compression is in use. The padding
1381 bug check assumes the first packet is of even length, this is not
1382 necessarily true if compresssion is enabled and can result in false
1383 positives causing handshake failure. The actual bug test is ancient
1384 code so it is hoped that implementations will either have fixed it by
1385 now or any which still have the bug do not support compression.
1388 Changes between 0.9.8a and 0.9.8b [04 May 2006]
1390 *) When applying a cipher rule check to see if string match is an explicit
1391 cipher suite and only match that one cipher suite if it is.
1394 *) Link in manifests for VC++ if needed.
1395 [Austin Ziegler <halostatue@gmail.com>]
1397 *) Update support for ECC-based TLS ciphersuites according to
1398 draft-ietf-tls-ecc-12.txt with proposed changes (but without
1399 TLS extensions, which are supported starting with the 0.9.9
1400 branch, not in the OpenSSL 0.9.8 branch).
1403 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
1404 opaque EVP_CIPHER_CTX handling.
1407 *) Fixes and enhancements to zlib compression code. We now only use
1408 "zlib1.dll" and use the default __cdecl calling convention on Win32
1409 to conform with the standards mentioned here:
1410 http://www.zlib.net/DLL_FAQ.txt
1411 Static zlib linking now works on Windows and the new --with-zlib-include
1412 --with-zlib-lib options to Configure can be used to supply the location
1413 of the headers and library. Gracefully handle case where zlib library
1417 *) Several fixes and enhancements to the OID generation code. The old code
1418 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
1419 handle numbers larger than ULONG_MAX, truncated printing and had a
1420 non standard OBJ_obj2txt() behaviour.
1423 *) Add support for building of engines under engine/ as shared libraries
1424 under VC++ build system.
1427 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
1428 Hopefully, we will not see any false combination of paths any more.
1431 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
1433 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1434 (part of SSL_OP_ALL). This option used to disable the
1435 countermeasure against man-in-the-middle protocol-version
1436 rollback in the SSL 2.0 server implementation, which is a bad
1437 idea. (CVE-2005-2969)
1439 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1440 for Information Security, National Institute of Advanced Industrial
1441 Science and Technology [AIST], Japan)]
1443 *) Add two function to clear and return the verify parameter flags.
1446 *) Keep cipherlists sorted in the source instead of sorting them at
1447 runtime, thus removing the need for a lock.
1450 *) Avoid some small subgroup attacks in Diffie-Hellman.
1451 [Nick Mathewson and Ben Laurie]
1453 *) Add functions for well-known primes.
1456 *) Extended Windows CE support.
1457 [Satoshi Nakamura and Andy Polyakov]
1459 *) Initialize SSL_METHOD structures at compile time instead of during
1460 runtime, thus removing the need for a lock.
1463 *) Make PKCS7_decrypt() work even if no certificate is supplied by
1464 attempting to decrypt each encrypted key in turn. Add support to
1468 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
1470 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
1473 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
1476 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
1477 key into the same file any more.
1480 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
1483 *) Add -utf8 command line and config file option to 'ca'.
1484 [Stefan <stf@udoma.org]
1486 *) Removed the macro des_crypt(), as it seems to conflict with some
1487 libraries. Use DES_crypt().
1490 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
1491 involves renaming the source and generated shared-libs for
1492 both. The engines will accept the corrected or legacy ids
1493 ('ncipher' and '4758_cca' respectively) when binding. NB,
1494 this only applies when building 'shared'.
1495 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
1497 *) Add attribute functions to EVP_PKEY structure. Modify
1498 PKCS12_create() to recognize a CSP name attribute and
1499 use it. Make -CSP option work again in pkcs12 utility.
1502 *) Add new functionality to the bn blinding code:
1503 - automatic re-creation of the BN_BLINDING parameters after
1504 a fixed number of uses (currently 32)
1505 - add new function for parameter creation
1506 - introduce flags to control the update behaviour of the
1507 BN_BLINDING parameters
1508 - hide BN_BLINDING structure
1509 Add a second BN_BLINDING slot to the RSA structure to improve
1510 performance when a single RSA object is shared among several
1514 *) Add support for DTLS.
1515 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
1517 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
1518 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
1521 *) Remove buggy and incompletet DH cert support from
1522 ssl/ssl_rsa.c and ssl/s3_both.c
1525 *) Use SHA-1 instead of MD5 as the default digest algorithm for
1526 the apps/openssl applications.
1529 *) Compile clean with "-Wall -Wmissing-prototypes
1530 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
1531 DEBUG_SAFESTACK must also be set.
1534 *) Change ./Configure so that certain algorithms can be disabled by default.
1535 The new counterpiece to "no-xxx" is "enable-xxx".
1537 The patented RC5 and MDC2 algorithms will now be disabled unless
1538 "enable-rc5" and "enable-mdc2", respectively, are specified.
1540 (IDEA remains enabled despite being patented. This is because IDEA
1541 is frequently required for interoperability, and there is no license
1542 fee for non-commercial use. As before, "no-idea" can be used to
1543 avoid this algorithm.)
1547 *) Add processing of proxy certificates (see RFC 3820). This work was
1548 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
1549 EGEE (Enabling Grids for E-science in Europe).
1552 *) RC4 performance overhaul on modern architectures/implementations, such
1553 as Intel P4, IA-64 and AMD64.
1556 *) New utility extract-section.pl. This can be used specify an alternative
1557 section number in a pod file instead of having to treat each file as
1558 a separate case in Makefile. This can be done by adding two lines to the
1561 =for comment openssl_section:XXX
1563 The blank line is mandatory.
1567 *) New arguments -certform, -keyform and -pass for s_client and s_server
1568 to allow alternative format key and certificate files and passphrase
1572 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
1573 update associated structures and add various utility functions.
1575 Add new policy related verify parameters, include policy checking in
1576 standard verify code. Enhance 'smime' application with extra parameters
1577 to support policy checking and print out.
1580 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
1581 Nehemiah processors. These extensions support AES encryption in hardware
1582 as well as RNG (though RNG support is currently disabled).
1583 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
1585 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
1588 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
1589 [Andy Polyakov and a number of other people]
1591 *) Improved PowerPC platform support. Most notably BIGNUM assembler
1592 implementation contributed by IBM.
1593 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
1595 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
1596 exponent rather than 'unsigned long'. There is a corresponding change to
1597 the new 'rsa_keygen' element of the RSA_METHOD structure.
1598 [Jelte Jansen, Geoff Thorpe]
1600 *) Functionality for creating the initial serial number file is now
1601 moved from CA.pl to the 'ca' utility with a new option -create_serial.
1603 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
1604 number file to 1, which is bound to cause problems. To avoid
1605 the problems while respecting compatibility between different 0.9.7
1606 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
1607 CA.pl for serial number initialization. With the new release 0.9.8,
1608 we can fix the problem directly in the 'ca' utility.)
1611 *) Reduced header interdepencies by declaring more opaque objects in
1612 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
1613 give fewer recursive includes, which could break lazy source code - so
1614 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
1615 developers should define this symbol when building and using openssl to
1616 ensure they track the recommended behaviour, interfaces, [etc], but
1617 backwards-compatible behaviour prevails when this isn't defined.
1620 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
1623 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
1624 This will generate a random key of the appropriate length based on the
1625 cipher context. The EVP_CIPHER can provide its own random key generation
1626 routine to support keys of a specific form. This is used in the des and
1627 3des routines to generate a key of the correct parity. Update S/MIME
1628 code to use new functions and hence generate correct parity DES keys.
1629 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
1630 valid (weak or incorrect parity).
1633 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
1634 as looking them up. This is useful when the verified structure may contain
1635 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
1636 present unless the new PKCS7_NO_CRL flag is asserted.
1639 *) Extend ASN1 oid configuration module. It now additionally accepts the
1642 shortName = some long name, 1.2.3.4
1645 *) Reimplemented the BN_CTX implementation. There is now no more static
1646 limitation on the number of variables it can handle nor the depth of the
1647 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
1648 information can now expand as required, and rather than having a single
1649 static array of bignums, BN_CTX now uses a linked-list of such arrays
1650 allowing it to expand on demand whilst maintaining the usefulness of
1651 BN_CTX's "bundling".
1654 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
1655 to allow all RSA operations to function using a single BN_CTX.
1658 *) Preliminary support for certificate policy evaluation and checking. This
1659 is initially intended to pass the tests outlined in "Conformance Testing
1660 of Relying Party Client Certificate Path Processing Logic" v1.07.
1663 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
1664 remained unused and not that useful. A variety of other little bignum
1665 tweaks and fixes have also been made continuing on from the audit (see
1669 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
1670 associated ASN1, EVP and SSL functions and old ASN1 macros.
1673 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
1674 and this should never fail. So the return value from the use of
1675 BN_set_word() (which can fail due to needless expansion) is now deprecated;
1676 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
1679 *) BN_CTX_get() should return zero-valued bignums, providing the same
1680 initialised value as BN_new().
1681 [Geoff Thorpe, suggested by Ulf Möller]
1683 *) Support for inhibitAnyPolicy certificate extension.
1686 *) An audit of the BIGNUM code is underway, for which debugging code is
1687 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
1688 is considered valid when processing BIGNUMs, and causes execution to
1689 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
1690 further steps are taken to deliberately pollute unused data in BIGNUM
1691 structures to try and expose faulty code further on. For now, openssl will
1692 (in its default mode of operation) continue to tolerate the inconsistent
1693 forms that it has tolerated in the past, but authors and packagers should
1694 consider trying openssl and their own applications when compiled with
1695 these debugging symbols defined. It will help highlight potential bugs in
1696 their own code, and will improve the test coverage for OpenSSL itself. At
1697 some point, these tighter rules will become openssl's default to improve
1698 maintainability, though the assert()s and other overheads will remain only
1699 in debugging configurations. See bn.h for more details.
1700 [Geoff Thorpe, Nils Larsch, Ulf Möller]
1702 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
1703 that can only be obtained through BN_CTX_new() (which implicitly
1704 initialises it). The presence of this function only made it possible
1705 to overwrite an existing structure (and cause memory leaks).
1708 *) Because of the callback-based approach for implementing LHASH as a
1709 template type, lh_insert() adds opaque objects to hash-tables and
1710 lh_doall() or lh_doall_arg() are typically used with a destructor callback
1711 to clean up those corresponding objects before destroying the hash table
1712 (and losing the object pointers). So some over-zealous constifications in
1713 LHASH have been relaxed so that lh_insert() does not take (nor store) the
1714 objects as "const" and the lh_doall[_arg] callback wrappers are not
1715 prototyped to have "const" restrictions on the object pointers they are
1716 given (and so aren't required to cast them away any more).
1719 *) The tmdiff.h API was so ugly and minimal that our own timing utility
1720 (speed) prefers to use its own implementation. The two implementations
1721 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
1722 its object type properly exposed (MS_TM) instead of casting to/from "char
1723 *". This may still change yet if someone realises MS_TM and "ms_time_***"
1724 aren't necessarily the greatest nomenclatures - but this is what was used
1725 internally to the implementation so I've used that for now.
1728 *) Ensure that deprecated functions do not get compiled when
1729 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
1730 the self-tests were still using deprecated key-generation functions so
1731 these have been updated also.
1734 *) Reorganise PKCS#7 code to separate the digest location functionality
1735 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
1736 New function PKCS7_set_digest() to set the digest type for PKCS#7
1737 digestedData type. Add additional code to correctly generate the
1738 digestedData type and add support for this type in PKCS7 initialization
1742 *) New function PKCS7_set0_type_other() this initializes a PKCS7
1743 structure of type "other".
1746 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
1747 sure the loop does correctly stop and breaking ("division by zero")
1748 modulus operations are not performed. The (pre-generated) prime
1749 table crypto/bn/bn_prime.h was already correct, but it could not be
1750 re-generated on some platforms because of the "division by zero"
1751 situation in the script.
1752 [Ralf S. Engelschall]
1754 *) Update support for ECC-based TLS ciphersuites according to
1755 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
1756 SHA-1 now is only used for "small" curves (where the
1757 representation of a field element takes up to 24 bytes); for
1758 larger curves, the field element resulting from ECDH is directly
1759 used as premaster secret.
1760 [Douglas Stebila (Sun Microsystems Laboratories)]
1762 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
1763 curve secp160r1 to the tests.
1764 [Douglas Stebila (Sun Microsystems Laboratories)]
1766 *) Add the possibility to load symbols globally with DSO.
1767 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
1769 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
1770 control of the error stack.
1773 *) Add support for STORE in ENGINE.
1776 *) Add the STORE type. The intention is to provide a common interface
1777 to certificate and key stores, be they simple file-based stores, or
1778 HSM-type store, or LDAP stores, or...
1779 NOTE: The code is currently UNTESTED and isn't really used anywhere.
1782 *) Add a generic structure called OPENSSL_ITEM. This can be used to
1783 pass a list of arguments to any function as well as provide a way
1784 for a function to pass data back to the caller.
1787 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
1788 works like BUF_strdup() but can be used to duplicate a portion of
1789 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
1793 *) Add the function sk_find_ex() which works like sk_find(), but will
1794 return an index to an element even if an exact match couldn't be
1795 found. The index is guaranteed to point at the element where the
1796 searched-for key would be inserted to preserve sorting order.
1799 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
1800 takes an extra flags argument for optional functionality. Currently,
1801 the following flags are defined:
1803 OBJ_BSEARCH_VALUE_ON_NOMATCH
1804 This one gets OBJ_bsearch_ex() to return a pointer to the first
1805 element where the comparing function returns a negative or zero
1808 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
1809 This one gets OBJ_bsearch_ex() to return a pointer to the first
1810 element where the comparing function returns zero. This is useful
1811 if there are more than one element where the comparing function
1815 *) Make it possible to create self-signed certificates with 'openssl ca'
1816 in such a way that the self-signed certificate becomes part of the
1817 CA database and uses the same mechanisms for serial number generation
1818 as all other certificate signing. The new flag '-selfsign' enables
1819 this functionality. Adapt CA.sh and CA.pl.in.
1822 *) Add functionality to check the public key of a certificate request
1823 against a given private. This is useful to check that a certificate
1824 request can be signed by that key (self-signing).
1827 *) Make it possible to have multiple active certificates with the same
1828 subject in the CA index file. This is done only if the keyword
1829 'unique_subject' is set to 'no' in the main CA section (default
1830 if 'CA_default') of the configuration file. The value is saved
1831 with the database itself in a separate index attribute file,
1832 named like the index file with '.attr' appended to the name.
1835 *) Generate muti valued AVAs using '+' notation in config files for
1839 *) Support for nameConstraints certificate extension.
1842 *) Support for policyConstraints certificate extension.
1845 *) Support for policyMappings certificate extension.
1848 *) Make sure the default DSA_METHOD implementation only uses its
1849 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
1850 and change its own handlers to be NULL so as to remove unnecessary
1851 indirection. This lets alternative implementations fallback to the
1852 default implementation more easily.
1855 *) Support for directoryName in GeneralName related extensions
1859 *) Make it possible to link applications using Makefile.shared.
1860 Make that possible even when linking against static libraries!
1863 *) Support for single pass processing for S/MIME signing. This now
1864 means that S/MIME signing can be done from a pipe, in addition
1865 cleartext signing (multipart/signed type) is effectively streaming
1866 and the signed data does not need to be all held in memory.
1868 This is done with a new flag PKCS7_STREAM. When this flag is set
1869 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
1870 is done after the data is output (and digests calculated) in
1871 SMIME_write_PKCS7().
1874 *) Add full support for -rpath/-R, both in shared libraries and
1875 applications, at least on the platforms where it's known how
1879 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
1880 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
1881 will now compute a table of multiples of the generator that
1882 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
1883 faster (notably in the case of a single point multiplication,
1884 scalar * generator).
1885 [Nils Larsch, Bodo Moeller]
1887 *) IPv6 support for certificate extensions. The various extensions
1888 which use the IP:a.b.c.d can now take IPv6 addresses using the
1889 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
1893 *) Added an ENGINE that implements RSA by performing private key
1894 exponentiations with the GMP library. The conversions to and from
1895 GMP's mpz_t format aren't optimised nor are any montgomery forms
1896 cached, and on x86 it appears OpenSSL's own performance has caught up.
1897 However there are likely to be other architectures where GMP could
1898 provide a boost. This ENGINE is not built in by default, but it can be
1899 specified at Configure time and should be accompanied by the necessary
1900 linker additions, eg;
1901 ./config -DOPENSSL_USE_GMP -lgmp
1904 *) "openssl engine" will not display ENGINE/DSO load failure errors when
1905 testing availability of engines with "-t" - the old behaviour is
1906 produced by increasing the feature's verbosity with "-tt".
1909 *) ECDSA routines: under certain error conditions uninitialized BN objects
1910 could be freed. Solution: make sure initialization is performed early
1911 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
1915 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
1916 and DH_METHOD (eg. by ENGINE implementations) to override the normal
1917 software implementations. For DSA and DH, parameter generation can
1918 also be overriden by providing the appropriate method callbacks.
1921 *) Change the "progress" mechanism used in key-generation and
1922 primality testing to functions that take a new BN_GENCB pointer in
1923 place of callback/argument pairs. The new API functions have "_ex"
1924 postfixes and the older functions are reimplemented as wrappers for
1925 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
1926 declarations of the old functions to help (graceful) attempts to
1927 migrate to the new functions. Also, the new key-generation API
1928 functions operate on a caller-supplied key-structure and return
1929 success/failure rather than returning a key or NULL - this is to
1930 help make "keygen" another member function of RSA_METHOD etc.
1932 Example for using the new callback interface:
1934 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
1938 BN_GENCB_set(&my_cb, my_callback, my_arg);
1940 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
1941 /* For the meaning of a, b in calls to my_callback(), see the
1942 * documentation of the function that calls the callback.
1943 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
1944 * my_callback should return 1 if it wants BN_is_prime_ex()
1945 * to continue, or 0 to stop.
1950 *) Change the ZLIB compression method to be stateful, and make it
1951 available to TLS with the number defined in
1952 draft-ietf-tls-compression-04.txt.
1955 *) Add the ASN.1 structures and functions for CertificatePair, which
1956 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
1958 CertificatePair ::= SEQUENCE {
1959 forward [0] Certificate OPTIONAL,
1960 reverse [1] Certificate OPTIONAL,
1961 -- at least one of the pair shall be present -- }
1963 Also implement the PEM functions to read and write certificate
1964 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
1966 This needed to be defined, mostly for the sake of the LDAP
1967 attribute crossCertificatePair, but may prove useful elsewhere as
1971 *) Make it possible to inhibit symlinking of shared libraries in
1972 Makefile.shared, for Cygwin's sake.
1975 *) Extend the BIGNUM API by creating a function
1976 void BN_set_negative(BIGNUM *a, int neg);
1977 and a macro that behave like
1978 int BN_is_negative(const BIGNUM *a);
1980 to avoid the need to access 'a->neg' directly in applications.
1983 *) Implement fast modular reduction for pseudo-Mersenne primes
1984 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
1985 EC_GROUP_new_curve_GFp() will now automatically use this
1987 [Nils Larsch <nla@trustcenter.de>]
1989 *) Add new lock type (CRYPTO_LOCK_BN).
1992 *) Change the ENGINE framework to automatically load engines
1993 dynamically from specific directories unless they could be
1994 found to already be built in or loaded. Move all the
1995 current engines except for the cryptodev one to a new
1997 The engines in engines/ are built as shared libraries if
1998 the "shared" options was given to ./Configure or ./config.
1999 Otherwise, they are inserted in libcrypto.a.
2000 /usr/local/ssl/engines is the default directory for dynamic
2001 engines, but that can be overriden at configure time through
2002 the usual use of --prefix and/or --openssldir, and at run
2003 time with the environment variable OPENSSL_ENGINES.
2004 [Geoff Thorpe and Richard Levitte]
2006 *) Add Makefile.shared, a helper makefile to build shared
2007 libraries. Addapt Makefile.org.
2010 *) Add version info to Win32 DLLs.
2011 [Peter 'Luna' Runestig" <peter@runestig.com>]
2013 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2014 can be added using this API to created arbitrary PKCS#12
2015 files while avoiding the low level API.
2017 New options to PKCS12_create(), key or cert can be NULL and
2018 will then be omitted from the output file. The encryption
2019 algorithm NIDs can be set to -1 for no encryption, the mac
2020 iteration count can be set to 0 to omit the mac.
2022 Enhance pkcs12 utility by making the -nokeys and -nocerts
2023 options work when creating a PKCS#12 file. New option -nomac
2024 to omit the mac, NONE can be set for an encryption algorithm.
2025 New code is modified to use the enhanced PKCS12_create()
2026 instead of the low level API.
2029 *) Extend ASN1 encoder to support indefinite length constructed
2030 encoding. This can output sequences tags and octet strings in
2031 this form. Modify pk7_asn1.c to support indefinite length
2032 encoding. This is experimental and needs additional code to
2033 be useful, such as an ASN1 bio and some enhanced streaming
2036 Extend template encode functionality so that tagging is passed
2037 down to the template encoder.
2040 *) Let 'openssl req' fail if an argument to '-newkey' is not
2041 recognized instead of using RSA as a default.
2044 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2045 As these are not official, they are not included in "ALL";
2046 the "ECCdraft" ciphersuite group alias can be used to select them.
2047 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2049 *) Add ECDH engine support.
2050 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2052 *) Add ECDH in new directory crypto/ecdh/.
2053 [Douglas Stebila (Sun Microsystems Laboratories)]
2055 *) Let BN_rand_range() abort with an error after 100 iterations
2056 without success (which indicates a broken PRNG).
2059 *) Change BN_mod_sqrt() so that it verifies that the input value
2060 is really the square of the return value. (Previously,
2061 BN_mod_sqrt would show GIGO behaviour.)
2064 *) Add named elliptic curves over binary fields from X9.62, SECG,
2065 and WAP/WTLS; add OIDs that were still missing.
2067 [Sheueling Chang Shantz and Douglas Stebila
2068 (Sun Microsystems Laboratories)]
2070 *) Extend the EC library for elliptic curves over binary fields
2071 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2074 EC_GF2m_simple_method
2078 EC_GROUP_new_curve_GF2m
2079 EC_GROUP_set_curve_GF2m
2080 EC_GROUP_get_curve_GF2m
2081 EC_POINT_set_affine_coordinates_GF2m
2082 EC_POINT_get_affine_coordinates_GF2m
2083 EC_POINT_set_compressed_coordinates_GF2m
2085 Point compression for binary fields is disabled by default for
2086 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2089 As binary polynomials are represented as BIGNUMs, various members
2090 of the EC_GROUP and EC_POINT data structures can be shared
2091 between the implementations for prime fields and binary fields;
2092 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2093 are essentially identical to their ..._GFp counterparts.
2094 (For simplicity, the '..._GFp' prefix has been dropped from
2095 various internal method names.)
2097 An internal 'field_div' method (similar to 'field_mul' and
2098 'field_sqr') has been added; this is used only for binary fields.
2100 [Sheueling Chang Shantz and Douglas Stebila
2101 (Sun Microsystems Laboratories)]
2103 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2104 through methods ('mul', 'precompute_mult').
2106 The generic implementations (now internally called 'ec_wNAF_mul'
2107 and 'ec_wNAF_precomputed_mult') remain the default if these
2108 methods are undefined.
2110 [Sheueling Chang Shantz and Douglas Stebila
2111 (Sun Microsystems Laboratories)]
2113 *) New function EC_GROUP_get_degree, which is defined through
2114 EC_METHOD. For curves over prime fields, this returns the bit
2115 length of the modulus.
2117 [Sheueling Chang Shantz and Douglas Stebila
2118 (Sun Microsystems Laboratories)]
2120 *) New functions EC_GROUP_dup, EC_POINT_dup.
2121 (These simply call ..._new and ..._copy).
2123 [Sheueling Chang Shantz and Douglas Stebila
2124 (Sun Microsystems Laboratories)]
2126 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2127 Polynomials are represented as BIGNUMs (where the sign bit is not
2128 used) in the following functions [macros]:
2131 BN_GF2m_sub [= BN_GF2m_add]
2132 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2133 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2134 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2136 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2137 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2138 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2139 BN_GF2m_cmp [= BN_ucmp]
2141 (Note that only the 'mod' functions are actually for fields GF(2^m).
2142 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2144 For some functions, an the irreducible polynomial defining a
2145 field can be given as an 'unsigned int[]' with strictly
2146 decreasing elements giving the indices of those bits that are set;
2147 i.e., p[] represents the polynomial
2148 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2150 p[0] > p[1] > ... > p[k] = 0.
2151 This applies to the following functions:
2156 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2157 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2159 BN_GF2m_mod_sqrt_arr
2160 BN_GF2m_mod_solve_quad_arr
2164 Conversion can be performed by the following functions:
2169 bntest.c has additional tests for binary polynomial arithmetic.
2171 Two implementations for BN_GF2m_mod_div() are available.
2172 The default algorithm simply uses BN_GF2m_mod_inv() and
2173 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2174 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2175 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2177 [Sheueling Chang Shantz and Douglas Stebila
2178 (Sun Microsystems Laboratories)]
2180 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2181 functionality is disabled at compile-time.
2182 [Douglas Stebila <douglas.stebila@sun.com>]
2184 *) Change default behaviour of 'openssl asn1parse' so that more
2185 information is visible when viewing, e.g., a certificate:
2187 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2188 mode the content of non-printable OCTET STRINGs is output in a
2189 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2190 avoid the appearance of a printable string.
2191 [Nils Larsch <nla@trustcenter.de>]
2193 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2195 EC_GROUP_set_asn1_flag()
2196 EC_GROUP_get_asn1_flag()
2197 EC_GROUP_set_point_conversion_form()
2198 EC_GROUP_get_point_conversion_form()
2199 These control ASN1 encoding details:
2200 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2201 has been set to OPENSSL_EC_NAMED_CURVE.
2202 - Points are encoded in uncompressed form by default; options for
2203 asn1_for are as for point2oct, namely
2204 POINT_CONVERSION_COMPRESSED
2205 POINT_CONVERSION_UNCOMPRESSED
2206 POINT_CONVERSION_HYBRID
2208 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2211 EC_GROUP_get0_seed()
2212 EC_GROUP_get_seed_len()
2213 This is used only for ASN1 purposes (so far).
2214 [Nils Larsch <nla@trustcenter.de>]
2216 *) Add 'field_type' member to EC_METHOD, which holds the NID
2217 of the appropriate field type OID. The new function
2218 EC_METHOD_get_field_type() returns this value.
2219 [Nils Larsch <nla@trustcenter.de>]
2224 EC_POINT_point2hex()
2225 EC_POINT_hex2point()
2226 providing useful interfaces to EC_POINT_point2oct() and
2227 EC_POINT_oct2point().
2228 [Nils Larsch <nla@trustcenter.de>]
2230 *) Change internals of the EC library so that the functions
2231 EC_GROUP_set_generator()
2232 EC_GROUP_get_generator()
2233 EC_GROUP_get_order()
2234 EC_GROUP_get_cofactor()
2235 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2236 to methods, which would lead to unnecessary code duplication when
2237 adding different types of curves.
2238 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2240 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2241 arithmetic, and such that modified wNAFs are generated
2242 (which avoid length expansion in many cases).
2245 *) Add a function EC_GROUP_check_discriminant() (defined via
2246 EC_METHOD) that verifies that the curve discriminant is non-zero.
2248 Add a function EC_GROUP_check() that makes some sanity tests
2249 on a EC_GROUP, its generator and order. This includes
2250 EC_GROUP_check_discriminant().
2251 [Nils Larsch <nla@trustcenter.de>]
2253 *) Add ECDSA in new directory crypto/ecdsa/.
2255 Add applications 'openssl ecparam' and 'openssl ecdsa'
2256 (these are based on 'openssl dsaparam' and 'openssl dsa').
2258 ECDSA support is also included in various other files across the
2259 library. Most notably,
2260 - 'openssl req' now has a '-newkey ecdsa:file' option;
2261 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
2262 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
2263 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
2264 them suitable for ECDSA where domain parameters must be
2265 extracted before the specific public key;
2266 - ECDSA engine support has been added.
2267 [Nils Larsch <nla@trustcenter.de>]
2269 *) Include some named elliptic curves, and add OIDs from X9.62,
2270 SECG, and WAP/WTLS. Each curve can be obtained from the new
2272 EC_GROUP_new_by_curve_name(),
2273 and the list of available named curves can be obtained with
2274 EC_get_builtin_curves().
2275 Also add a 'curve_name' member to EC_GROUP objects, which can be
2277 EC_GROUP_set_curve_name()
2278 EC_GROUP_get_curve_name()
2279 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
2281 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
2282 was actually never needed) and in BN_mul(). The removal in BN_mul()
2283 required a small change in bn_mul_part_recursive() and the addition
2284 of the functions bn_cmp_part_words(), bn_sub_part_words() and
2285 bn_add_part_words(), which do the same thing as bn_cmp_words(),
2286 bn_sub_words() and bn_add_words() except they take arrays with
2290 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
2292 *) Cleanse PEM buffers before freeing them since they may contain
2294 [Benjamin Bennett <ben@psc.edu>]
2296 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2297 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2298 authentication-only ciphersuites.
2301 *) Since AES128 and AES256 share a single mask bit in the logic of
2302 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2303 kludge to work properly if AES128 is available and AES256 isn't.
2306 *) Expand security boundary to match 1.1.1 module.
2309 *) Remove redundant features: hash file source, editing of test vectors
2310 modify fipsld to use external fips_premain.c signature.
2313 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
2314 run algorithm test programs.
2317 *) Make algorithm test programs more tolerant of whitespace.
2320 *) Have SSL/TLS server implementation tolerate "mismatched" record
2321 protocol version while receiving ClientHello even if the
2322 ClientHello is fragmented. (The server can't insist on the
2323 particular protocol version it has chosen before the ServerHello
2324 message has informed the client about his choice.)
2327 *) Load error codes if they are not already present instead of using a
2328 static variable. This allows them to be cleanly unloaded and reloaded.
2331 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
2333 *) Introduce limits to prevent malicious keys being able to
2334 cause a denial of service. (CVE-2006-2940)
2335 [Steve Henson, Bodo Moeller]
2337 *) Fix ASN.1 parsing of certain invalid structures that can result
2338 in a denial of service. (CVE-2006-2937) [Steve Henson]
2340 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2341 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2343 *) Fix SSL client code which could crash if connecting to a
2344 malicious SSLv2 server. (CVE-2006-4343)
2345 [Tavis Ormandy and Will Drewry, Google Security Team]
2347 *) Change ciphersuite string processing so that an explicit
2348 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
2349 will no longer include "AES128-SHA"), and any other similar
2350 ciphersuite (same bitmap) from *other* protocol versions (so that
2351 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
2352 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
2353 changes from 0.9.8b and 0.9.8d.
2356 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
2358 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2359 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2361 *) Change the Unix randomness entropy gathering to use poll() when
2362 possible instead of select(), since the latter has some
2363 undesirable limitations.
2364 [Darryl Miles via Richard Levitte and Bodo Moeller]
2366 *) Disable rogue ciphersuites:
2368 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2369 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2370 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2372 The latter two were purportedly from
2373 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2376 Also deactive the remaining ciphersuites from
2377 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2378 unofficial, and the ID has long expired.
2381 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2382 dual-core machines) and other potential thread-safety issues.
2385 Changes between 0.9.7i and 0.9.7j [04 May 2006]
2387 *) Adapt fipsld and the build system to link against the validated FIPS
2388 module in FIPS mode.
2391 *) Fixes for VC++ 2005 build under Windows.
2394 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
2395 from a Windows bash shell such as MSYS. It is autodetected from the
2396 "config" script when run from a VC++ environment. Modify standard VC++
2397 build to use fipscanister.o from the GNU make build.
2400 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
2402 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
2403 The value now differs depending on if you build for FIPS or not.
2404 BEWARE! A program linked with a shared FIPSed libcrypto can't be
2405 safely run with a non-FIPSed libcrypto, as it may crash because of
2406 the difference induced by this change.
2409 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
2411 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2412 (part of SSL_OP_ALL). This option used to disable the
2413 countermeasure against man-in-the-middle protocol-version
2414 rollback in the SSL 2.0 server implementation, which is a bad
2415 idea. (CVE-2005-2969)
2417 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2418 for Information Security, National Institute of Advanced Industrial
2419 Science and Technology [AIST], Japan)]
2421 *) Minimal support for X9.31 signatures and PSS padding modes. This is
2422 mainly for FIPS compliance and not fully integrated at this stage.
2425 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
2426 the exponentiation using a fixed-length exponent. (Otherwise,
2427 the information leaked through timing could expose the secret key
2428 after many signatures; cf. Bleichenbacher's attack on DSA with
2432 *) Make a new fixed-window mod_exp implementation the default for
2433 RSA, DSA, and DH private-key operations so that the sequence of
2434 squares and multiplies and the memory access pattern are
2435 independent of the particular secret key. This will mitigate
2436 cache-timing and potential related attacks.
2438 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
2439 and this is automatically used by BN_mod_exp_mont() if the new flag
2440 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
2441 will use this BN flag for private exponents unless the flag
2442 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
2443 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
2445 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
2447 *) Change the client implementation for SSLv23_method() and
2448 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
2449 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
2450 (Previously, the SSL 2.0 backwards compatible Client Hello
2451 message format would be used even with SSL_OP_NO_SSLv2.)
2454 *) Add support for smime-type MIME parameter in S/MIME messages which some
2458 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
2459 a threadsafe manner. Modify rsa code to use new function and add calls
2460 to dsa and dh code (which had race conditions before).
2463 *) Include the fixed error library code in the C error file definitions
2464 instead of fixing them up at runtime. This keeps the error code
2465 structures constant.
2468 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
2470 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
2473 *) Fixes for newer kerberos headers. NB: the casts are needed because
2474 the 'length' field is signed on one version and unsigned on another
2475 with no (?) obvious way to tell the difference, without these VC++
2476 complains. Also the "definition" of FAR (blank) is no longer included
2477 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
2478 some needed definitions.
2481 *) Undo Cygwin change.
2484 *) Added support for proxy certificates according to RFC 3820.
2485 Because they may be a security thread to unaware applications,
2486 they must be explicitely allowed in run-time. See
2487 docs/HOWTO/proxy_certificates.txt for further information.
2490 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
2492 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
2493 server and client random values. Previously
2494 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
2495 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
2497 This change has negligible security impact because:
2499 1. Server and client random values still have 24 bytes of pseudo random
2502 2. Server and client random values are sent in the clear in the initial
2505 3. The master secret is derived using the premaster secret (48 bytes in
2506 size for static RSA ciphersuites) as well as client server and random
2509 The OpenSSL team would like to thank the UK NISCC for bringing this issue
2512 [Stephen Henson, reported by UK NISCC]
2514 *) Use Windows randomness collection on Cygwin.
2517 *) Fix hang in EGD/PRNGD query when communication socket is closed
2518 prematurely by EGD/PRNGD.
2519 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
2521 *) Prompt for pass phrases when appropriate for PKCS12 input format.
2524 *) Back-port of selected performance improvements from development
2525 branch, as well as improved support for PowerPC platforms.
2528 *) Add lots of checks for memory allocation failure, error codes to indicate
2529 failure and freeing up memory if a failure occurs.
2530 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
2532 *) Add new -passin argument to dgst.
2535 *) Perform some character comparisons of different types in X509_NAME_cmp:
2536 this is needed for some certificates that reencode DNs into UTF8Strings
2537 (in violation of RFC3280) and can't or wont issue name rollover
2541 *) Make an explicit check during certificate validation to see that
2542 the CA setting in each certificate on the chain is correct. As a
2543 side effect always do the following basic checks on extensions,
2544 not just when there's an associated purpose to the check:
2546 - if there is an unhandled critical extension (unless the user
2547 has chosen to ignore this fault)
2548 - if the path length has been exceeded (if one is set at all)
2549 - that certain extensions fit the associated purpose (if one has
2553 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
2555 *) Avoid a race condition when CRLs are checked in a multi threaded
2556 environment. This would happen due to the reordering of the revoked
2557 entries during signature checking and serial number lookup. Now the
2558 encoding is cached and the serial number sort performed under a lock.
2559 Add new STACK function sk_is_sorted().
2562 *) Add Delta CRL to the extension code.
2565 *) Various fixes to s3_pkt.c so alerts are sent properly.
2566 [David Holmes <d.holmes@f5.com>]
2568 *) Reduce the chances of duplicate issuer name and serial numbers (in
2569 violation of RFC3280) using the OpenSSL certificate creation utilities.
2570 This is done by creating a random 64 bit value for the initial serial
2571 number when a serial number file is created or when a self signed
2572 certificate is created using 'openssl req -x509'. The initial serial
2573 number file is created using 'openssl x509 -next_serial' in CA.pl
2574 rather than being initialized to 1.
2577 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
2579 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
2580 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
2581 [Joe Orton, Steve Henson]
2583 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
2585 [Joe Orton, Steve Henson]
2587 *) Make it possible to have multiple active certificates with the same
2588 subject in the CA index file. This is done only if the keyword
2589 'unique_subject' is set to 'no' in the main CA section (default
2590 if 'CA_default') of the configuration file. The value is saved
2591 with the database itself in a separate index attribute file,
2592 named like the index file with '.attr' appended to the name.
2595 *) X509 verify fixes. Disable broken certificate workarounds when
2596 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
2597 keyUsage extension present. Don't accept CRLs with unhandled critical
2598 extensions: since verify currently doesn't process CRL extensions this
2599 rejects a CRL with *any* critical extensions. Add new verify error codes
2603 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
2604 A clarification of RFC2560 will require the use of OCTET STRINGs and
2605 some implementations cannot handle the current raw format. Since OpenSSL
2606 copies and compares OCSP nonces as opaque blobs without any attempt at
2607 parsing them this should not create any compatibility issues.
2610 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
2611 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
2612 this HMAC (and other) operations are several times slower than OpenSSL
2616 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
2617 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2619 *) Use the correct content when signing type "other".
2622 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
2624 *) Fix various bugs revealed by running the NISCC test suite:
2626 Stop out of bounds reads in the ASN1 code when presented with
2627 invalid tags (CVE-2003-0543 and CVE-2003-0544).
2629 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
2631 If verify callback ignores invalid public key errors don't try to check
2632 certificate signature with the NULL public key.
2636 *) New -ignore_err option in ocsp application to stop the server
2637 exiting on the first error in a request.
2640 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
2641 if the server requested one: as stated in TLS 1.0 and SSL 3.0
2645 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
2646 extra data after the compression methods not only for TLS 1.0
2647 but also for SSL 3.0 (as required by the specification).
2648 [Bodo Moeller; problem pointed out by Matthias Loepfe]
2650 *) Change X509_certificate_type() to mark the key as exported/exportable
2651 when it's 512 *bits* long, not 512 bytes.
2654 *) Change AES_cbc_encrypt() so it outputs exact multiple of
2655 blocks during encryption.
2658 *) Various fixes to base64 BIO and non blocking I/O. On write
2659 flushes were not handled properly if the BIO retried. On read
2660 data was not being buffered properly and had various logic bugs.
2661 This also affects blocking I/O when the data being decoded is a
2665 *) Various S/MIME bugfixes and compatibility changes:
2666 output correct application/pkcs7 MIME type if
2667 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
2668 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
2669 of files as .eml work). Correctly handle very long lines in MIME
2673 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
2675 *) Countermeasure against the Klima-Pokorny-Rosa extension of
2676 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
2677 a protocol version number mismatch like a decryption error
2678 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
2681 *) Turn on RSA blinding by default in the default implementation
2682 to avoid a timing attack. Applications that don't want it can call
2683 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
2684 They would be ill-advised to do so in most cases.
2685 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
2687 *) Change RSA blinding code so that it works when the PRNG is not
2688 seeded (in this case, the secret RSA exponent is abused as
2689 an unpredictable seed -- if it is not unpredictable, there
2690 is no point in blinding anyway). Make RSA blinding thread-safe
2691 by remembering the creator's thread ID in rsa->blinding and
2692 having all other threads use local one-time blinding factors
2693 (this requires more computation than sharing rsa->blinding, but
2694 avoids excessive locking; and if an RSA object is not shared
2695 between threads, blinding will still be very fast).
2698 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
2699 ENGINE as defaults for all supported algorithms irrespective of
2700 the 'flags' parameter. 'flags' is now honoured, so applications
2701 should make sure they are passing it correctly.
2704 *) Target "mingw" now allows native Windows code to be generated in
2705 the Cygwin environment as well as with the MinGW compiler.
2708 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
2710 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
2711 via timing by performing a MAC computation even if incorrrect
2712 block cipher padding has been found. This is a countermeasure
2713 against active attacks where the attacker has to distinguish
2714 between bad padding and a MAC verification error. (CVE-2003-0078)
2716 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
2717 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
2718 Martin Vuagnoux (EPFL, Ilion)]
2720 *) Make the no-err option work as intended. The intention with no-err
2721 is not to have the whole error stack handling routines removed from
2722 libcrypto, it's only intended to remove all the function name and
2723 reason texts, thereby removing some of the footprint that may not
2724 be interesting if those errors aren't displayed anyway.
2726 NOTE: it's still possible for any application or module to have it's
2727 own set of error texts inserted. The routines are there, just not
2728 used by default when no-err is given.
2731 *) Add support for FreeBSD on IA64.
2732 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
2734 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
2735 Kerberos function mit_des_cbc_cksum(). Before this change,
2736 the value returned by DES_cbc_cksum() was like the one from
2737 mit_des_cbc_cksum(), except the bytes were swapped.
2738 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
2740 *) Allow an application to disable the automatic SSL chain building.
2741 Before this a rather primitive chain build was always performed in
2742 ssl3_output_cert_chain(): an application had no way to send the
2743 correct chain if the automatic operation produced an incorrect result.
2745 Now the chain builder is disabled if either:
2747 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
2749 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
2751 The reasoning behind this is that an application would not want the
2752 auto chain building to take place if extra chain certificates are
2753 present and it might also want a means of sending no additional
2754 certificates (for example the chain has two certificates and the
2758 *) Add the possibility to build without the ENGINE framework.
2759 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2761 *) Under Win32 gmtime() can return NULL: check return value in
2762 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
2765 *) DSA routines: under certain error conditions uninitialized BN objects
2766 could be freed. Solution: make sure initialization is performed early
2767 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
2768 Nils Larsch <nla@trustcenter.de> via PR#459)
2771 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
2772 checked on reconnect on the client side, therefore session resumption
2773 could still fail with a "ssl session id is different" error. This
2774 behaviour is masked when SSL_OP_ALL is used due to
2775 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
2776 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2777 followup to PR #377.
2780 *) IA-32 assembler support enhancements: unified ELF targets, support
2781 for SCO/Caldera platforms, fix for Cygwin shared build.
2784 *) Add support for FreeBSD on sparc64. As a consequence, support for
2785 FreeBSD on non-x86 processors is separate from x86 processors on
2786 the config script, much like the NetBSD support.
2787 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
2789 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
2791 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
2794 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
2795 code (06) was taken as the first octet of the session ID and the last
2796 octet was ignored consequently. As a result SSLv2 client side session
2797 caching could not have worked due to the session ID mismatch between
2799 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
2803 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
2804 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
2808 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
2809 seems that in spite of existing for more than a year, many application
2810 author have done nothing to provide the necessary callbacks, which
2811 means that this particular engine will not work properly anywhere.
2812 This is a very unfortunate situation which forces us, in the name
2813 of usability, to give the hw_ncipher.c a static lock, which is part
2815 NOTE: This is for the 0.9.7 series ONLY. This hack will never
2816 appear in 0.9.8 or later. We EXPECT application authors to have
2817 dealt properly with this when 0.9.8 is released (unless we actually
2818 make such changes in the libcrypto locking code that changes will
2819 have to be made anyway).
2822 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
2823 octets have been read, EOF or an error occurs. Without this change
2824 some truncated ASN1 structures will not produce an error.
2827 *) Disable Heimdal support, since it hasn't been fully implemented.
2828 Still give the possibility to force the use of Heimdal, but with
2829 warnings and a request that patches get sent to openssl-dev.
2832 *) Add the VC-CE target, introduce the WINCE sysname, and add
2833 INSTALL.WCE and appropriate conditionals to make it build.
2834 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
2836 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
2837 cygssl-x.y.z.dll, where x, y and z are the major, minor and
2838 edit numbers of the version.
2839 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
2841 *) Introduce safe string copy and catenation functions
2842 (BUF_strlcpy() and BUF_strlcat()).
2843 [Ben Laurie (CHATS) and Richard Levitte]
2845 *) Avoid using fixed-size buffers for one-line DNs.
2846 [Ben Laurie (CHATS)]
2848 *) Add BUF_MEM_grow_clean() to avoid information leakage when
2849 resizing buffers containing secrets, and use where appropriate.
2850 [Ben Laurie (CHATS)]
2852 *) Avoid using fixed size buffers for configuration file location.
2853 [Ben Laurie (CHATS)]
2855 *) Avoid filename truncation for various CA files.
2856 [Ben Laurie (CHATS)]
2858 *) Use sizeof in preference to magic numbers.
2859 [Ben Laurie (CHATS)]
2861 *) Avoid filename truncation in cert requests.
2862 [Ben Laurie (CHATS)]
2864 *) Add assertions to check for (supposedly impossible) buffer
2866 [Ben Laurie (CHATS)]
2868 *) Don't cache truncated DNS entries in the local cache (this could
2869 potentially lead to a spoofing attack).
2870 [Ben Laurie (CHATS)]
2872 *) Fix various buffers to be large enough for hex/decimal
2873 representations in a platform independent manner.
2874 [Ben Laurie (CHATS)]
2876 *) Add CRYPTO_realloc_clean() to avoid information leakage when
2877 resizing buffers containing secrets, and use where appropriate.
2878 [Ben Laurie (CHATS)]
2880 *) Add BIO_indent() to avoid much slightly worrying code to do
2882 [Ben Laurie (CHATS)]
2884 *) Convert sprintf()/BIO_puts() to BIO_printf().
2885 [Ben Laurie (CHATS)]
2887 *) buffer_gets() could terminate with the buffer only half
2889 [Ben Laurie (CHATS)]
2891 *) Add assertions to prevent user-supplied crypto functions from
2892 overflowing internal buffers by having large block sizes, etc.
2893 [Ben Laurie (CHATS)]
2895 *) New OPENSSL_assert() macro (similar to assert(), but enabled
2897 [Ben Laurie (CHATS)]
2899 *) Eliminate unused copy of key in RC4.
2900 [Ben Laurie (CHATS)]
2902 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
2903 [Ben Laurie (CHATS)]
2905 *) Fix off-by-one error in EGD path.
2906 [Ben Laurie (CHATS)]
2908 *) If RANDFILE path is too long, ignore instead of truncating.
2909 [Ben Laurie (CHATS)]
2911 *) Eliminate unused and incorrectly sized X.509 structure
2913 [Ben Laurie (CHATS)]
2915 *) Eliminate unused and dangerous function knumber().
2916 [Ben Laurie (CHATS)]
2918 *) Eliminate unused and dangerous structure, KSSL_ERR.
2919 [Ben Laurie (CHATS)]
2921 *) Protect against overlong session ID context length in an encoded
2922 session object. Since these are local, this does not appear to be
2924 [Ben Laurie (CHATS)]
2926 *) Change from security patch (see 0.9.6e below) that did not affect
2927 the 0.9.6 release series:
2929 Remote buffer overflow in SSL3 protocol - an attacker could
2930 supply an oversized master key in Kerberos-enabled versions.
2932 [Ben Laurie (CHATS)]
2934 *) Change the SSL kerb5 codes to match RFC 2712.
2937 *) Make -nameopt work fully for req and add -reqopt switch.
2938 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
2940 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
2941 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
2943 *) Make sure tests can be performed even if the corresponding algorithms
2944 have been removed entirely. This was also the last step to make
2945 OpenSSL compilable with DJGPP under all reasonable conditions.
2946 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
2948 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
2949 to allow version independent disabling of normally unselected ciphers,
2950 which may be activated as a side-effect of selecting a single cipher.
2952 (E.g., cipher list string "RSA" enables ciphersuites that are left
2953 out of "ALL" because they do not provide symmetric encryption.
2954 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
2955 [Lutz Jaenicke, Bodo Moeller]
2957 *) Add appropriate support for separate platform-dependent build
2958 directories. The recommended way to make a platform-dependent
2959 build directory is the following (tested on Linux), maybe with
2962 # Place yourself outside of the OpenSSL source tree. In
2963 # this example, the environment variable OPENSSL_SOURCE
2964 # is assumed to contain the absolute OpenSSL source directory.
2965 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
2966 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
2967 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
2968 mkdir -p `dirname $F`
2969 ln -s $OPENSSL_SOURCE/$F $F
2972 To be absolutely sure not to disturb the source tree, a "make clean"
2973 is a good thing. If it isn't successfull, don't worry about it,
2974 it probably means the source directory is very clean.
2977 *) Make sure any ENGINE control commands make local copies of string
2978 pointers passed to them whenever necessary. Otherwise it is possible
2979 the caller may have overwritten (or deallocated) the original string
2980 data when a later ENGINE operation tries to use the stored values.
2981 [Götz Babin-Ebell <babinebell@trustcenter.de>]
2983 *) Improve diagnostics in file reading and command-line digests.
2984 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
2986 *) Add AES modes CFB and OFB to the object database. Correct an
2987 error in AES-CFB decryption.
2990 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
2991 allows existing EVP_CIPHER_CTX structures to be reused after
2992 calling EVP_*Final(). This behaviour is used by encryption
2993 BIOs and some applications. This has the side effect that
2994 applications must explicitly clean up cipher contexts with
2995 EVP_CIPHER_CTX_cleanup() or they will leak memory.
2998 *) Check the values of dna and dnb in bn_mul_recursive before calling
2999 bn_mul_comba (a non zero value means the a or b arrays do not contain
3000 n2 elements) and fallback to bn_mul_normal if either is not zero.
3003 *) Fix escaping of non-ASCII characters when using the -subj option
3004 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3007 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3008 form for "surname", serialNumber has no short form.
3009 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3010 therefore remove "mail" short name for "internet 7".
3011 The OID for unique identifiers in X509 certificates is
3012 x500UniqueIdentifier, not uniqueIdentifier.
3013 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3016 *) Add an "init" command to the ENGINE config module and auto initialize
3017 ENGINEs. Without any "init" command the ENGINE will be initialized
3018 after all ctrl commands have been executed on it. If init=1 the
3019 ENGINE is initailized at that point (ctrls before that point are run
3020 on the uninitialized ENGINE and after on the initialized one). If
3021 init=0 then the ENGINE will not be iniatialized at all.
3024 *) Fix the 'app_verify_callback' interface so that the user-defined
3025 argument is actually passed to the callback: In the
3026 SSL_CTX_set_cert_verify_callback() prototype, the callback
3027 declaration has been changed from
3030 int (*cb)(X509_STORE_CTX *,void *);
3031 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3032 i=s->ctx->app_verify_callback(&ctx)
3033 has been changed into
3034 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3036 To update applications using SSL_CTX_set_cert_verify_callback(),
3037 a dummy argument can be added to their callback functions.
3038 [D. K. Smetters <smetters@parc.xerox.com>]
3040 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3041 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3043 *) Add and OPENSSL_LOAD_CONF define which will cause
3044 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3045 This allows older applications to transparently support certain
3046 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3047 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3048 load the config file and OPENSSL_add_all_algorithms_conf() which will
3049 always load it have also been added.
3052 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3053 Adjust NIDs and EVP layer.
3054 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3056 *) Config modules support in openssl utility.
3058 Most commands now load modules from the config file,
3059 though in a few (such as version) this isn't done
3060 because it couldn't be used for anything.
3062 In the case of ca and req the config file used is
3063 the same as the utility itself: that is the -config
3064 command line option can be used to specify an
3068 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3069 use "openssl_conf" if filename is NULL use default openssl config file.
3072 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3073 config section name. Add a new flag to tolerate a missing config file
3074 and move code to CONF_modules_load_file().
3077 *) Support for crypto accelerator cards from Accelerated Encryption
3078 Processing, www.aep.ie. (Use engine 'aep')
3079 The support was copied from 0.9.6c [engine] and adapted/corrected
3080 to work with the new engine framework.
3081 [AEP Inc. and Richard Levitte]
3083 *) Support for SureWare crypto accelerator cards from Baltimore
3084 Technologies. (Use engine 'sureware')
3085 The support was copied from 0.9.6c [engine] and adapted
3086 to work with the new engine framework.
3089 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3090 make the newer ENGINE framework commands for the CHIL engine work.
3091 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3093 *) Make it possible to produce shared libraries on ReliantUNIX.
3094 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3096 *) Add the configuration target debug-linux-ppro.
3097 Make 'openssl rsa' use the general key loading routines
3098 implemented in apps.c, and make those routines able to
3099 handle the key format FORMAT_NETSCAPE and the variant
3101 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3103 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3104 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3106 *) Add -keyform to rsautl, and document -engine.
3107 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3109 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3110 BIO_R_NO_SUCH_FILE error code rather than the generic
3111 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3114 *) Add new functions
3116 ERR_peek_last_error_line
3117 ERR_peek_last_error_line_data.
3118 These are similar to
3121 ERR_peek_error_line_data,
3122 but report on the latest error recorded rather than the first one
3123 still in the error queue.
3124 [Ben Laurie, Bodo Moeller]
3126 *) default_algorithms option in ENGINE config module. This allows things
3128 default_algorithms = ALL
3129 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3132 *) Prelminary ENGINE config module.
3135 *) New experimental application configuration code.
3138 *) Change the AES code to follow the same name structure as all other
3139 symmetric ciphers, and behave the same way. Move everything to
3140 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3141 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3143 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3144 [Ben Laurie and Theo de Raadt]
3146 *) Add option to output public keys in req command.
3147 [Massimiliano Pala madwolf@openca.org]
3149 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3150 (up to about 10% better than before for P-192 and P-224).
3153 *) New functions/macros
3155 SSL_CTX_set_msg_callback(ctx, cb)
3156 SSL_CTX_set_msg_callback_arg(ctx, arg)
3157 SSL_set_msg_callback(ssl, cb)
3158 SSL_set_msg_callback_arg(ssl, arg)
3160 to request calling a callback function
3162 void cb(int write_p, int version, int content_type,
3163 const void *buf, size_t len, SSL *ssl, void *arg)
3165 whenever a protocol message has been completely received
3166 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3167 protocol version according to which the SSL library interprets
3168 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3169 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3170 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3171 specification (change_cipher_spec(20), alert(21), handshake(22)).
3172 'buf' and 'len' point to the actual message, 'ssl' to the
3173 SSL object, and 'arg' is the application-defined value set by
3174 SSL[_CTX]_set_msg_callback_arg().
3176 'openssl s_client' and 'openssl s_server' have new '-msg' options
3177 to enable a callback that displays all protocol messages.
3180 *) Change the shared library support so shared libraries are built as
3181 soon as the corresponding static library is finished, and thereby get
3182 openssl and the test programs linked against the shared library.
3183 This still only happens when the keyword "shard" has been given to
3184 the configuration scripts.
3186 NOTE: shared library support is still an experimental thing, and
3187 backward binary compatibility is still not guaranteed.
3188 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3190 *) Add support for Subject Information Access extension.
3191 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3193 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3194 additional bytes when new memory had to be allocated, not just
3195 when reusing an existing buffer.
3198 *) New command line and configuration option 'utf8' for the req command.
3199 This allows field values to be specified as UTF8 strings.
3202 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3203 runs for the former and machine-readable output for the latter.
3206 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3207 of the e-mail address in the DN (i.e., it will go into a certificate
3208 extension only). The new configuration file option 'email_in_dn = no'
3209 has the same effect.
3210 [Massimiliano Pala madwolf@openca.org]
3212 *) Change all functions with names starting with des_ to be starting
3213 with DES_ instead. Add wrappers that are compatible with libdes,
3214 but are named _ossl_old_des_*. Finally, add macros that map the
3215 des_* symbols to the corresponding _ossl_old_des_* if libdes
3216 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3217 desired, the des_* symbols will be mapped to DES_*, with one
3220 Since we provide two compatibility mappings, the user needs to
3221 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3222 compatibility is desired. The default (i.e., when that macro
3223 isn't defined) is OpenSSL 0.9.6c compatibility.
3225 There are also macros that enable and disable the support of old
3226 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3227 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3228 are defined, the default will apply: to support the old des routines.
3230 In either case, one must include openssl/des.h to get the correct
3231 definitions. Do not try to just include openssl/des_old.h, that
3234 NOTE: This is a major break of an old API into a new one. Software
3235 authors are encouraged to switch to the DES_ style functions. Some
3236 time in the future, des_old.h and the libdes compatibility functions
3237 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3238 default), and then completely removed.
3241 *) Test for certificates which contain unsupported critical extensions.
3242 If such a certificate is found during a verify operation it is
3243 rejected by default: this behaviour can be overridden by either
3244 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3245 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3246 X509_supported_extension() has also been added which returns 1 if a
3247 particular extension is supported.
3250 *) Modify the behaviour of EVP cipher functions in similar way to digests
3251 to retain compatibility with existing code.
3254 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
3255 compatibility with existing code. In particular the 'ctx' parameter does
3256 not have to be to be initialized before the call to EVP_DigestInit() and
3257 it is tidied up after a call to EVP_DigestFinal(). New function
3258 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
3259 EVP_MD_CTX_copy() changed to not require the destination to be
3260 initialized valid and new function EVP_MD_CTX_copy_ex() added which
3261 requires the destination to be valid.
3263 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
3264 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
3267 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
3268 so that complete 'Handshake' protocol structures are kept in memory
3269 instead of overwriting 'msg_type' and 'length' with 'body' data.
3272 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
3273 [Massimo Santin via Richard Levitte]
3275 *) Major restructuring to the underlying ENGINE code. This includes
3276 reduction of linker bloat, separation of pure "ENGINE" manipulation
3277 (initialisation, etc) from functionality dealing with implementations
3278 of specific crypto iterfaces. This change also introduces integrated
3279 support for symmetric ciphers and digest implementations - so ENGINEs
3280 can now accelerate these by providing EVP_CIPHER and EVP_MD
3281 implementations of their own. This is detailed in crypto/engine/README
3282 as it couldn't be adequately described here. However, there are a few
3283 API changes worth noting - some RSA, DSA, DH, and RAND functions that
3284 were changed in the original introduction of ENGINE code have now
3285 reverted back - the hooking from this code to ENGINE is now a good
3286 deal more passive and at run-time, operations deal directly with
3287 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
3288 dereferencing through an ENGINE pointer any more. Also, the ENGINE
3289 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
3290 they were not being used by the framework as there is no concept of a
3291 BIGNUM_METHOD and they could not be generalised to the new
3292 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
3293 ENGINE_cpy() has been removed as it cannot be consistently defined in
3297 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
3300 *) Change mkdef.pl to sort symbols that get the same entry number,
3301 and make sure the automatically generated functions ERR_load_*
3302 become part of libeay.num as well.
3305 *) New function SSL_renegotiate_pending(). This returns true once
3306 renegotiation has been requested (either SSL_renegotiate() call
3307 or HelloRequest/ClientHello receveived from the peer) and becomes
3308 false once a handshake has been completed.
3309 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
3310 sends a HelloRequest, but does not ensure that a handshake takes
3311 place. SSL_renegotiate_pending() is useful for checking if the
3312 client has followed the request.)
3315 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
3316 By default, clients may request session resumption even during
3317 renegotiation (if session ID contexts permit); with this option,
3318 session resumption is possible only in the first handshake.
3320 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
3321 more bits available for options that should not be part of
3322 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
3325 *) Add some demos for certificate and certificate request creation.
3328 *) Make maximum certificate chain size accepted from the peer application
3329 settable (SSL*_get/set_max_cert_list()), as proposed by
3330 "Douglas E. Engert" <deengert@anl.gov>.
3333 *) Add support for shared libraries for Unixware-7
3334 (Boyd Lynn Gerber <gerberb@zenez.com>).
3337 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
3338 be done prior to destruction. Use this to unload error strings from
3339 ENGINEs that load their own error strings. NB: This adds two new API
3340 functions to "get" and "set" this destroy handler in an ENGINE.
3343 *) Alter all existing ENGINE implementations (except "openssl" and
3344 "openbsd") to dynamically instantiate their own error strings. This
3345 makes them more flexible to be built both as statically-linked ENGINEs
3346 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
3347 Also, add stub code to each that makes building them as self-contained
3348 shared-libraries easier (see README.ENGINE).
3351 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
3352 implementations into applications that are completely implemented in
3353 self-contained shared-libraries. The "dynamic" ENGINE exposes control
3354 commands that can be used to configure what shared-library to load and
3355 to control aspects of the way it is handled. Also, made an update to
3356 the README.ENGINE file that brings its information up-to-date and
3357 provides some information and instructions on the "dynamic" ENGINE
3358 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
3361 *) Make it possible to unload ranges of ERR strings with a new
3362 "ERR_unload_strings" function.
3365 *) Add a copy() function to EVP_MD.
3368 *) Make EVP_MD routines take a context pointer instead of just the
3369 md_data void pointer.
3372 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
3373 that the digest can only process a single chunk of data
3374 (typically because it is provided by a piece of
3375 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
3376 is only going to provide a single chunk of data, and hence the
3377 framework needn't accumulate the data for oneshot drivers.
3380 *) As with "ERR", make it possible to replace the underlying "ex_data"
3381 functions. This change also alters the storage and management of global
3382 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
3383 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
3384 index counters. The API functions that use this state have been changed
3385 to take a "class_index" rather than pointers to the class's local STACK
3386 and counter, and there is now an API function to dynamically create new
3387 classes. This centralisation allows us to (a) plug a lot of the
3388 thread-safety problems that existed, and (b) makes it possible to clean
3389 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
3390 such data would previously have always leaked in application code and
3391 workarounds were in place to make the memory debugging turn a blind eye
3392 to it. Application code that doesn't use this new function will still
3393 leak as before, but their memory debugging output will announce it now
3394 rather than letting it slide.
3396 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
3397 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
3398 has a return value to indicate success or failure.
3401 *) Make it possible to replace the underlying "ERR" functions such that the
3402 global state (2 LHASH tables and 2 locks) is only used by the "default"
3403 implementation. This change also adds two functions to "get" and "set"
3404 the implementation prior to it being automatically set the first time
3405 any other ERR function takes place. Ie. an application can call "get",
3406 pass the return value to a module it has just loaded, and that module
3407 can call its own "set" function using that value. This means the
3408 module's "ERR" operations will use (and modify) the error state in the
3409 application and not in its own statically linked copy of OpenSSL code.
3412 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
3413 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
3414 the operation, and provides a more encapsulated way for external code
3415 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
3416 to use these functions rather than manually incrementing the counts.
3418 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
3421 *) Add EVP test program.
3424 *) Add symmetric cipher support to ENGINE. Expect the API to change!
3427 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
3428 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
3429 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
3430 These allow a CRL to be built without having to access X509_CRL fields
3431 directly. Modify 'ca' application to use new functions.
3434 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
3435 bug workarounds. Rollback attack detection is a security feature.
3436 The problem will only arise on OpenSSL servers when TLSv1 is not
3437 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
3438 Software authors not wanting to support TLSv1 will have special reasons
3439 for their choice and can explicitly enable this option.
3440 [Bodo Moeller, Lutz Jaenicke]
3442 *) Rationalise EVP so it can be extended: don't include a union of
3443 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
3444 (similar to those existing for EVP_CIPHER_CTX).
3449 EVP_MD_CTX_init(&md); /* new function call */
3450 EVP_DigestInit(&md, EVP_sha1());
3451 EVP_DigestUpdate(&md, in, len);
3452 EVP_DigestFinal(&md, out, NULL);
3453 EVP_MD_CTX_cleanup(&md); /* new function call */
3457 *) Make DES key schedule conform to the usual scheme, as well as
3458 correcting its structure. This means that calls to DES functions
3459 now have to pass a pointer to a des_key_schedule instead of a
3460 plain des_key_schedule (which was actually always a pointer
3463 des_key_schedule ks;
3465 des_set_key_checked(..., &ks);
3466 des_ncbc_encrypt(..., &ks, ...);
3468 (Note that a later change renames 'des_...' into 'DES_...'.)
3471 *) Initial reduction of linker bloat: the use of some functions, such as
3472 PEM causes large amounts of unused functions to be linked in due to
3473 poor organisation. For example pem_all.c contains every PEM function
3474 which has a knock on effect of linking in large amounts of (unused)
3475 ASN1 code. Grouping together similar functions and splitting unrelated
3476 functions prevents this.
3479 *) Cleanup of EVP macros.
3482 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
3483 correct _ecb suffix.
3486 *) Add initial OCSP responder support to ocsp application. The
3487 revocation information is handled using the text based index
3488 use by the ca application. The responder can either handle
3489 requests generated internally, supplied in files (for example
3490 via a CGI script) or using an internal minimal server.
3493 *) Add configuration choices to get zlib compression for TLS.
3496 *) Changes to Kerberos SSL for RFC 2712 compliance:
3497 1. Implemented real KerberosWrapper, instead of just using
3498 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
3499 2. Implemented optional authenticator field of KerberosWrapper.
3501 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
3502 and authenticator structs; see crypto/krb5/.
3504 Generalized Kerberos calls to support multiple Kerberos libraries.
3505 [Vern Staats <staatsvr@asc.hpc.mil>,
3506 Jeffrey Altman <jaltman@columbia.edu>
3507 via Richard Levitte]
3509 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
3510 already does with RSA. testdsa.h now has 'priv_key/pub_key'
3511 values for each of the key sizes rather than having just
3512 parameters (and 'speed' generating keys each time).
3515 *) Speed up EVP routines.
3518 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
3519 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
3520 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
3521 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
3523 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
3524 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
3525 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
3528 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
3530 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
3533 *) Added the OS2-EMX target.
3534 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
3536 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
3537 to support NCONF routines in extension code. New function CONF_set_nconf()
3538 to allow functions which take an NCONF to also handle the old LHASH
3539 structure: this means that the old CONF compatible routines can be
3540 retained (in particular wrt extensions) without having to duplicate the
3541 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
3544 *) Enhance the general user interface with mechanisms for inner control
3545 and with possibilities to have yes/no kind of prompts.
3548 *) Change all calls to low level digest routines in the library and
3549 applications to use EVP. Add missing calls to HMAC_cleanup() and
3550 don't assume HMAC_CTX can be copied using memcpy().
3551 [Verdon Walker <VWalker@novell.com>, Steve Henson]
3553 *) Add the possibility to control engines through control names but with
3554 arbitrary arguments instead of just a string.
3555 Change the key loaders to take a UI_METHOD instead of a callback
3556 function pointer. NOTE: this breaks binary compatibility with earlier
3557 versions of OpenSSL [engine].
3558 Adapt the nCipher code for these new conditions and add a card insertion
3562 *) Enhance the general user interface with mechanisms to better support
3563 dialog box interfaces, application-defined prompts, the possibility
3564 to use defaults (for example default passwords from somewhere else)
3565 and interrupts/cancellations.
3568 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
3569 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
3572 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
3573 tidy up some unnecessarily weird code in 'sk_new()').
3574 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
3576 *) Change the key loading routines for ENGINEs to use the same kind
3577 callback (pem_password_cb) as all other routines that need this
3581 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
3582 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
3583 than this minimum value is recommended.
3586 *) New random seeder for OpenVMS, using the system process statistics
3587 that are easily reachable.
3590 *) Windows apparently can't transparently handle global
3591 variables defined in DLLs. Initialisations such as:
3593 const ASN1_ITEM *it = &ASN1_INTEGER_it;
3595 wont compile. This is used by the any applications that need to
3596 declare their own ASN1 modules. This was fixed by adding the option
3597 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
3598 needed for static libraries under Win32.
3601 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
3602 setting of purpose and trust fields. New X509_STORE trust and
3603 purpose functions and tidy up setting in other SSL functions.
3606 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
3607 structure. These are inherited by X509_STORE_CTX when it is
3608 initialised. This allows various defaults to be set in the
3609 X509_STORE structure (such as flags for CRL checking and custom
3610 purpose or trust settings) for functions which only use X509_STORE_CTX
3611 internally such as S/MIME.
3613 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
3614 trust settings if they are not set in X509_STORE. This allows X509_STORE
3615 purposes and trust (in S/MIME for example) to override any set by default.
3617 Add command line options for CRL checking to smime, s_client and s_server
3621 *) Initial CRL based revocation checking. If the CRL checking flag(s)
3622 are set then the CRL is looked up in the X509_STORE structure and
3623 its validity and signature checked, then if the certificate is found
3624 in the CRL the verify fails with a revoked error.
3626 Various new CRL related callbacks added to X509_STORE_CTX structure.
3628 Command line options added to 'verify' application to support this.
3630 This needs some additional work, such as being able to handle multiple
3631 CRLs with different times, extension based lookup (rather than just
3632 by subject name) and ultimately more complete V2 CRL extension
3636 *) Add a general user interface API (crypto/ui/). This is designed
3637 to replace things like des_read_password and friends (backward
3638 compatibility functions using this new API are provided).
3639 The purpose is to remove prompting functions from the DES code
3640 section as well as provide for prompting through dialog boxes in
3641 a window system and the like.
3644 *) Add "ex_data" support to ENGINE so implementations can add state at a
3645 per-structure level rather than having to store it globally.
3648 *) Make it possible for ENGINE structures to be copied when retrieved by
3649 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
3650 This causes the "original" ENGINE structure to act like a template,
3651 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
3652 operational state can be localised to each ENGINE structure, despite the
3653 fact they all share the same "methods". New ENGINE structures returned in
3654 this case have no functional references and the return value is the single
3655 structural reference. This matches the single structural reference returned
3656 by ENGINE_by_id() normally, when it is incremented on the pre-existing
3660 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
3661 needs to match any other type at all we need to manually clear the
3665 *) Changes to the "openssl engine" utility to include;
3666 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
3667 about an ENGINE's available control commands.
3668 - executing control commands from command line arguments using the
3669 '-pre' and '-post' switches. '-post' is only used if '-t' is
3670 specified and the ENGINE is successfully initialised. The syntax for
3671 the individual commands are colon-separated, for example;
3672 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
3675 *) New dynamic control command support for ENGINEs. ENGINEs can now
3676 declare their own commands (numbers), names (strings), descriptions,
3677 and input types for run-time discovery by calling applications. A
3678 subset of these commands are implicitly classed as "executable"
3679 depending on their input type, and only these can be invoked through
3680 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
3681 can be based on user input, config files, etc). The distinction is
3682 that "executable" commands cannot return anything other than a boolean
3683 result and can only support numeric or string input, whereas some
3684 discoverable commands may only be for direct use through
3685 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
3686 pointers, or other custom uses. The "executable" commands are to
3687 support parameterisations of ENGINE behaviour that can be
3688 unambiguously defined by ENGINEs and used consistently across any
3689 OpenSSL-based application. Commands have been added to all the
3690 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
3691 control over shared-library paths without source code alterations.
3694 *) Changed all ENGINE implementations to dynamically allocate their
3695 ENGINEs rather than declaring them statically. Apart from this being
3696 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
3697 this also allows the implementations to compile without using the
3698 internal engine_int.h header.
3701 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
3702 'const' value. Any code that should be able to modify a RAND_METHOD
3703 should already have non-const pointers to it (ie. they should only
3704 modify their own ones).
3707 *) Made a variety of little tweaks to the ENGINE code.
3708 - "atalla" and "ubsec" string definitions were moved from header files
3709 to C code. "nuron" string definitions were placed in variables
3710 rather than hard-coded - allowing parameterisation of these values
3711 later on via ctrl() commands.
3712 - Removed unused "#if 0"'d code.
3713 - Fixed engine list iteration code so it uses ENGINE_free() to release
3714 structural references.
3715 - Constified the RAND_METHOD element of ENGINE structures.
3716 - Constified various get/set functions as appropriate and added
3717 missing functions (including a catch-all ENGINE_cpy that duplicates
3718 all ENGINE values onto a new ENGINE except reference counts/state).
3719 - Removed NULL parameter checks in get/set functions. Setting a method
3720 or function to NULL is a way of cancelling out a previously set
3721 value. Passing a NULL ENGINE parameter is just plain stupid anyway
3722 and doesn't justify the extra error symbols and code.
3723 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
3724 flags from engine_int.h to engine.h.
3725 - Changed prototypes for ENGINE handler functions (init(), finish(),
3726 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
3729 *) Implement binary inversion algorithm for BN_mod_inverse in addition
3730 to the algorithm using long division. The binary algorithm can be
3731 used only if the modulus is odd. On 32-bit systems, it is faster
3732 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
3733 roughly 5-15% for 256-bit moduli), so we use it only for moduli
3734 up to 450 bits. In 64-bit environments, the binary algorithm
3735 appears to be advantageous for much longer moduli; here we use it
3736 for moduli up to 2048 bits.
3739 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
3740 could not support the combine flag in choice fields.
3743 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
3744 extensions from a certificate request to the certificate.
3747 *) Allow multiple 'certopt' and 'nameopt' options to be separated
3748 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
3749 file: this allows the display of the certificate about to be
3750 signed to be customised, to allow certain fields to be included
3751 or excluded and extension details. The old system didn't display
3752 multicharacter strings properly, omitted fields not in the policy
3753 and couldn't display additional details such as extensions.
3756 *) Function EC_POINTs_mul for multiple scalar multiplication
3757 of an arbitrary number of elliptic curve points
3758 \sum scalars[i]*points[i],
3759 optionally including the generator defined for the EC_GROUP:
3760 scalar*generator + \sum scalars[i]*points[i].
3762 EC_POINT_mul is a simple wrapper function for the typical case
3763 that the point list has just one item (besides the optional
3767 *) First EC_METHODs for curves over GF(p):
3769 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
3770 operations and provides various method functions that can also
3771 operate with faster implementations of modular arithmetic.
3773 EC_GFp_mont_method() reuses most functions that are part of
3774 EC_GFp_simple_method, but uses Montgomery arithmetic.
3776 [Bodo Moeller; point addition and point doubling
3777 implementation directly derived from source code provided by
3778 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
3780 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
3781 crypto/ec/ec_lib.c):
3783 Curves are EC_GROUP objects (with an optional group generator)
3784 based on EC_METHODs that are built into the library.
3786 Points are EC_POINT objects based on EC_GROUP objects.
3788 Most of the framework would be able to handle curves over arbitrary
3789 finite fields, but as there are no obvious types for fields other
3790 than GF(p), some functions are limited to that for now.
3793 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
3794 that the file contains a complete HTTP response.
3797 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
3798 change the def and num file printf format specifier from "%-40sXXX"
3799 to "%-39s XXX". The latter will always guarantee a space after the
3800 field while the former will cause them to run together if the field
3801 is 40 of more characters long.
3804 *) Constify the cipher and digest 'method' functions and structures
3805 and modify related functions to take constant EVP_MD and EVP_CIPHER
3809 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
3810 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
3813 *) Modify EVP_Digest*() routines so they now return values. Although the
3814 internal software routines can never fail additional hardware versions
3818 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
3820 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
3821 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
3824 ERR_R_NESTED_ASN1_ERROR
3826 ERR_R_MISSING_ASN1_EOS
3827 were 4 .. 9, conflicting with
3828 ERR_LIB_RSA (= ERR_R_RSA_LIB)
3830 ERR_LIB_PEM (= ERR_R_PEM_LIB).
3831 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
3833 Add new error code 'ERR_R_INTERNAL_ERROR'.
3836 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
3840 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
3841 sets the subject name for a new request or supersedes the
3842 subject name in a given request. Formats that can be parsed are
3843 'CN=Some Name, OU=myOU, C=IT'
3845 'CN=Some Name/OU=myOU/C=IT'.
3847 Add options '-batch' and '-verbose' to 'openssl req'.
3848 [Massimiliano Pala <madwolf@hackmasters.net>]
3850 *) Introduce the possibility to access global variables through
3851 functions on platform were that's the best way to handle exporting
3852 global variables in shared libraries. To enable this functionality,
3853 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
3854 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
3855 is normally done by Configure or something similar).
3857 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
3858 in the source file (foo.c) like this:
3860 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
3861 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
3863 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
3864 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
3866 OPENSSL_DECLARE_GLOBAL(int,foo);
3867 #define foo OPENSSL_GLOBAL_REF(foo)
3868 OPENSSL_DECLARE_GLOBAL(double,bar);
3869 #define bar OPENSSL_GLOBAL_REF(bar)
3871 The #defines are very important, and therefore so is including the
3872 header file everywhere where the defined globals are used.
3874 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
3875 of ASN.1 items, but that structure is a bit different.
3877 The largest change is in util/mkdef.pl which has been enhanced with
3878 better and easier to understand logic to choose which symbols should
3879 go into the Windows .def files as well as a number of fixes and code
3880 cleanup (among others, algorithm keywords are now sorted
3881 lexicographically to avoid constant rewrites).
3884 *) In BN_div() keep a copy of the sign of 'num' before writing the
3885 result to 'rm' because if rm==num the value will be overwritten
3886 and produce the wrong result if 'num' is negative: this caused
3887 problems with BN_mod() and BN_nnmod().
3890 *) Function OCSP_request_verify(). This checks the signature on an
3891 OCSP request and verifies the signer certificate. The signer
3892 certificate is just checked for a generic purpose and OCSP request
3896 *) Add OCSP_check_validity() function to check the validity of OCSP
3897 responses. OCSP responses are prepared in real time and may only
3898 be a few seconds old. Simply checking that the current time lies
3899 between thisUpdate and nextUpdate max reject otherwise valid responses
3900 caused by either OCSP responder or client clock inaccuracy. Instead
3901 we allow thisUpdate and nextUpdate to fall within a certain period of
3902 the current time. The age of the response can also optionally be
3903 checked. Two new options -validity_period and -status_age added to
3907 *) If signature or public key algorithm is unrecognized print out its
3908 OID rather that just UNKNOWN.
3911 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
3912 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
3913 ID to be generated from the issuer certificate alone which can then be
3914 passed to OCSP_id_issuer_cmp().
3917 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
3918 ASN1 modules to export functions returning ASN1_ITEM pointers
3919 instead of the ASN1_ITEM structures themselves. This adds several
3920 new macros which allow the underlying ASN1 function/structure to
3921 be accessed transparently. As a result code should not use ASN1_ITEM
3922 references directly (such as &X509_it) but instead use the relevant
3923 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
3924 use of the new ASN1 code on platforms where exporting structures
3925 is problematical (for example in shared libraries) but exporting
3926 functions returning pointers to structures is not.
3929 *) Add support for overriding the generation of SSL/TLS session IDs.
3930 These callbacks can be registered either in an SSL_CTX or per SSL.
3931 The purpose of this is to allow applications to control, if they wish,
3932 the arbitrary values chosen for use as session IDs, particularly as it
3933 can be useful for session caching in multiple-server environments. A
3934 command-line switch for testing this (and any client code that wishes
3935 to use such a feature) has been added to "s_server".
3936 [Geoff Thorpe, Lutz Jaenicke]
3938 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
3939 of the form '#if defined(...) || defined(...) || ...' and
3940 '#if !defined(...) && !defined(...) && ...'. This also avoids
3941 the growing number of special cases it was previously handling.
3944 *) Make all configuration macros available for application by making
3945 sure they are available in opensslconf.h, by giving them names starting
3946 with "OPENSSL_" to avoid conflicts with other packages and by making
3947 sure e_os2.h will cover all platform-specific cases together with
3949 Additionally, it is now possible to define configuration/platform-
3950 specific names (called "system identities"). In the C code, these
3951 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
3952 macro with the name beginning with "OPENSSL_SYS_", which is determined
3953 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
3957 *) New option -set_serial to 'req' and 'x509' this allows the serial
3958 number to use to be specified on the command line. Previously self
3959 signed certificates were hard coded with serial number 0 and the
3960 CA options of 'x509' had to use a serial number in a file which was
3964 *) New options to 'ca' utility to support V2 CRL entry extensions.
3965 Currently CRL reason, invalidity date and hold instruction are
3966 supported. Add new CRL extensions to V3 code and some new objects.
3969 *) New function EVP_CIPHER_CTX_set_padding() this is used to
3970 disable standard block padding (aka PKCS#5 padding) in the EVP
3971 API, which was previously mandatory. This means that the data is
3972 not padded in any way and so the total length much be a multiple
3973 of the block size, otherwise an error occurs.
3976 *) Initial (incomplete) OCSP SSL support.
3979 *) New function OCSP_parse_url(). This splits up a URL into its host,
3980 port and path components: primarily to parse OCSP URLs. New -url
3981 option to ocsp utility.
3984 *) New nonce behavior. The return value of OCSP_check_nonce() now
3985 reflects the various checks performed. Applications can decide
3986 whether to tolerate certain situations such as an absent nonce
3987 in a response when one was present in a request: the ocsp application
3988 just prints out a warning. New function OCSP_add1_basic_nonce()
3989 this is to allow responders to include a nonce in a response even if
3990 the request is nonce-less.
3993 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
3994 skipped when using openssl x509 multiple times on a single input file,
3995 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
3998 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
3999 set string type: to handle setting ASN1_TIME structures. Fix ca
4000 utility to correctly initialize revocation date of CRLs.
4003 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4004 the clients preferred ciphersuites and rather use its own preferences.
4005 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4006 Internet Explorer by ensuring unchanged hash method during stepup.
4007 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4010 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4011 to aes and add a new 'exist' option to print out symbols that don't
4015 *) Additional options to ocsp utility to allow flags to be set and
4016 additional certificates supplied.
4019 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4020 OCSP client a number of certificate to only verify the response
4024 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4025 handle the new API. Currently only ECB, CBC modes supported. Add new
4028 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4029 Encryption Standard (AES) Ciphersuites for Transport Layer
4030 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4031 not enabled by default and were not part of the "ALL" ciphersuite
4032 alias because they were not yet official; they could be
4033 explicitly requested by specifying the "AESdraft" ciphersuite
4034 group alias. In the final release of OpenSSL 0.9.7, the group
4035 alias is called "AES" and is part of "ALL".)
4036 [Ben Laurie, Steve Henson, Bodo Moeller]
4038 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4039 request to response.
4042 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4043 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4044 extract information from a certificate request. OCSP_response_create()
4045 creates a response and optionally adds a basic response structure.
4046 OCSP_basic_add1_status() adds a complete single response to a basic
4047 response and returns the OCSP_SINGLERESP structure just added (to allow
4048 extensions to be included for example). OCSP_basic_add1_cert() adds a
4049 certificate to a basic response and OCSP_basic_sign() signs a basic
4050 response with various flags. New helper functions ASN1_TIME_check()
4051 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4052 (converts ASN1_TIME to GeneralizedTime).
4055 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4056 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4057 structure from a certificate. X509_pubkey_digest() digests the public_key
4058 contents: this is used in various key identifiers.
4061 *) Make sk_sort() tolerate a NULL argument.
4062 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4064 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4065 passed by the function are trusted implicitly. If any of them signed the
4066 response then it is assumed to be valid and is not verified.
4069 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4070 to data. This was previously part of the PKCS7 ASN1 code. This
4071 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4072 [Steve Henson, reported by Kenneth R. Robinette
4073 <support@securenetterm.com>]
4075 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4076 routines: without these tracing memory leaks is very painful.
4077 Fix leaks in PKCS12 and PKCS7 routines.
4080 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4081 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4082 effectively meant GeneralizedTime would never be used. Now it
4083 is initialised to -1 but X509_time_adj() now has to check the value
4084 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4085 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4086 [Steve Henson, reported by Kenneth R. Robinette
4087 <support@securenetterm.com>]
4089 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4090 result in a zero length in the ASN1_INTEGER structure which was
4091 not consistent with the structure when d2i_ASN1_INTEGER() was used
4092 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4093 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4094 where it did not print out a minus for negative ASN1_INTEGER.
4097 *) Add summary printout to ocsp utility. The various functions which
4098 convert status values to strings have been renamed to:
4099 OCSP_response_status_str(), OCSP_cert_status_str() and
4100 OCSP_crl_reason_str() and are no longer static. New options
4101 to verify nonce values and to disable verification. OCSP response
4102 printout format cleaned up.
4105 *) Add additional OCSP certificate checks. These are those specified
4106 in RFC2560. This consists of two separate checks: the CA of the
4107 certificate being checked must either be the OCSP signer certificate
4108 or the issuer of the OCSP signer certificate. In the latter case the
4109 OCSP signer certificate must contain the OCSP signing extended key
4110 usage. This check is performed by attempting to match the OCSP
4111 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4112 in the OCSP_CERTID structures of the response.
4115 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4116 and related routines. This uses the standard OpenSSL certificate
4117 verify routines to perform initial checks (just CA validity) and
4118 to obtain the certificate chain. Then additional checks will be
4119 performed on the chain. Currently the root CA is checked to see
4120 if it is explicitly trusted for OCSP signing. This is used to set
4121 a root CA as a global signing root: that is any certificate that
4122 chains to that CA is an acceptable OCSP signing certificate.
4125 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4126 extensions from a separate configuration file.
4127 As when reading extensions from the main configuration file,
4128 the '-extensions ...' option may be used for specifying the
4130 [Massimiliano Pala <madwolf@comune.modena.it>]
4132 *) New OCSP utility. Allows OCSP requests to be generated or
4133 read. The request can be sent to a responder and the output
4134 parsed, outputed or printed in text form. Not complete yet:
4135 still needs to check the OCSP response validity.
4138 *) New subcommands for 'openssl ca':
4139 'openssl ca -status <serial>' prints the status of the cert with
4140 the given serial number (according to the index file).
4141 'openssl ca -updatedb' updates the expiry status of certificates
4143 [Massimiliano Pala <madwolf@comune.modena.it>]
4145 *) New '-newreq-nodes' command option to CA.pl. This is like
4146 '-newreq', but calls 'openssl req' with the '-nodes' option
4147 so that the resulting key is not encrypted.
4148 [Damien Miller <djm@mindrot.org>]
4150 *) New configuration for the GNU Hurd.
4151 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4153 *) Initial code to implement OCSP basic response verify. This
4154 is currently incomplete. Currently just finds the signer's
4155 certificate and verifies the signature on the response.
4158 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4159 value of OPENSSLDIR. This is available via the new '-d' option
4160 to 'openssl version', and is also included in 'openssl version -a'.
4163 *) Allowing defining memory allocation callbacks that will be given
4164 file name and line number information in additional arguments
4165 (a const char* and an int). The basic functionality remains, as
4166 well as the original possibility to just replace malloc(),
4167 realloc() and free() by functions that do not know about these
4168 additional arguments. To register and find out the current
4169 settings for extended allocation functions, the following
4170 functions are provided:
4172 CRYPTO_set_mem_ex_functions
4173 CRYPTO_set_locked_mem_ex_functions
4174 CRYPTO_get_mem_ex_functions
4175 CRYPTO_get_locked_mem_ex_functions
4177 These work the same way as CRYPTO_set_mem_functions and friends.
4178 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4179 extended allocation function is enabled.
4180 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4181 a conventional allocation function is enabled.
4182 [Richard Levitte, Bodo Moeller]
4184 *) Finish off removing the remaining LHASH function pointer casts.
4185 There should no longer be any prototype-casting required when using
4186 the LHASH abstraction, and any casts that remain are "bugs". See
4187 the callback types and macros at the head of lhash.h for details
4188 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4191 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4192 If /dev/[u]random devices are not available or do not return enough
4193 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4195 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4196 /etc/entropy will be queried once each in this sequence, quering stops
4197 when enough entropy was collected without querying more sockets.
4200 *) Change the Unix RAND_poll() variant to be able to poll several
4201 random devices, as specified by DEVRANDOM, until a sufficient amount
4202 of data has been collected. We spend at most 10 ms on each file
4203 (select timeout) and read in non-blocking mode. DEVRANDOM now
4204 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4205 (previously it was just the string "/dev/urandom"), so on typical
4206 platforms the 10 ms delay will never occur.
4207 Also separate out the Unix variant to its own file, rand_unix.c.
4208 For VMS, there's a currently-empty rand_vms.c.
4211 *) Move OCSP client related routines to ocsp_cl.c. These
4212 provide utility functions which an application needing
4213 to issue a request to an OCSP responder and analyse the
4214 response will typically need: as opposed to those which an
4215 OCSP responder itself would need which will be added later.
4217 OCSP_request_sign() signs an OCSP request with an API similar
4218 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4219 response. OCSP_response_get1_basic() extracts basic response
4220 from response. OCSP_resp_find_status(): finds and extracts status
4221 information from an OCSP_CERTID structure (which will be created
4222 when the request structure is built). These are built from lower
4223 level functions which work on OCSP_SINGLERESP structures but
4224 wont normally be used unless the application wishes to examine
4225 extensions in the OCSP response for example.
4227 Replace nonce routines with a pair of functions.
4228 OCSP_request_add1_nonce() adds a nonce value and optionally
4229 generates a random value. OCSP_check_nonce() checks the
4230 validity of the nonce in an OCSP response.
4233 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4234 This doesn't copy the supplied OCSP_CERTID and avoids the
4235 need to free up the newly created id. Change return type
4236 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4237 This can then be used to add extensions to the request.
4238 Deleted OCSP_request_new(), since most of its functionality
4239 is now in OCSP_REQUEST_new() (and the case insensitive name
4240 clash) apart from the ability to set the request name which
4241 will be added elsewhere.
4244 *) Update OCSP API. Remove obsolete extensions argument from
4245 various functions. Extensions are now handled using the new
4246 OCSP extension code. New simple OCSP HTTP function which
4247 can be used to send requests and parse the response.
4250 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
4251 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
4252 uses the special reorder version of SET OF to sort the attributes
4253 and reorder them to match the encoded order. This resolves a long
4254 standing problem: a verify on a PKCS7 structure just after signing
4255 it used to fail because the attribute order did not match the
4256 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
4257 it uses the received order. This is necessary to tolerate some broken
4258 software that does not order SET OF. This is handled by encoding
4259 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
4260 to produce the required SET OF.
4263 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
4264 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
4265 files to get correct declarations of the ASN.1 item variables.
4268 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
4269 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
4270 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
4271 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
4272 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
4273 ASN1_ITEM and no wrapper functions.
4276 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
4277 replace the old function pointer based I/O routines. Change most of
4278 the *_d2i_bio() and *_d2i_fp() functions to use these.
4281 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
4282 lines, recognice more "algorithms" that can be deselected, and make
4283 it complain about algorithm deselection that isn't recognised.
4286 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
4287 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
4288 to use new functions. Add NO_ASN1_OLD which can be set to remove
4289 some old style ASN1 functions: this can be used to determine if old
4290 code will still work when these eventually go away.
4293 *) New extension functions for OCSP structures, these follow the
4294 same conventions as certificates and CRLs.
4297 *) New function X509V3_add1_i2d(). This automatically encodes and
4298 adds an extension. Its behaviour can be customised with various
4299 flags to append, replace or delete. Various wrappers added for
4300 certifcates and CRLs.
4303 *) Fix to avoid calling the underlying ASN1 print routine when
4304 an extension cannot be parsed. Correct a typo in the
4305 OCSP_SERVICELOC extension. Tidy up print OCSP format.
4308 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
4309 entries for variables.
4312 *) Add functionality to apps/openssl.c for detecting locking
4313 problems: As the program is single-threaded, all we have
4314 to do is register a locking callback using an array for
4315 storing which locks are currently held by the program.
4318 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
4319 SSL_get_ex_data_X509_STORE_idx(), which is used in
4320 ssl_verify_cert_chain() and thus can be called at any time
4321 during TLS/SSL handshakes so that thread-safety is essential.
4322 Unfortunately, the ex_data design is not at all suited
4323 for multi-threaded use, so it probably should be abolished.
4326 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
4327 [Broadcom, tweaked and integrated by Geoff Thorpe]
4329 *) Move common extension printing code to new function
4330 X509V3_print_extensions(). Reorganise OCSP print routines and
4331 implement some needed OCSP ASN1 functions. Add OCSP extensions.
4334 *) New function X509_signature_print() to remove duplication in some
4338 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
4339 set (this was treated exactly the same as SET OF previously). This
4340 is used to reorder the STACK representing the structure to match the
4341 encoding. This will be used to get round a problem where a PKCS7
4342 structure which was signed could not be verified because the STACK
4343 order did not reflect the encoded order.
4346 *) Reimplement the OCSP ASN1 module using the new code.
4349 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
4350 for its ASN1 operations. The old style function pointers still exist
4351 for now but they will eventually go away.
4354 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
4355 completely replaces the old ASN1 functionality with a table driven
4356 encoder and decoder which interprets an ASN1_ITEM structure describing
4357 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
4358 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
4359 has also been converted to the new form.
4362 *) Change BN_mod_exp_recp so that negative moduli are tolerated
4363 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
4364 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
4365 for negative moduli.
4368 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
4369 of not touching the result's sign bit.
4372 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
4376 *) Changed the LHASH code to use prototypes for callbacks, and created
4377 macros to declare and implement thin (optionally static) functions
4378 that provide type-safety and avoid function pointer casting for the
4379 type-specific callbacks.
4382 *) Added Kerberos Cipher Suites to be used with TLS, as written in
4384 [Veers Staats <staatsvr@asc.hpc.mil>,
4385 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
4387 *) Reformat the FAQ so the different questions and answers can be divided
4388 in sections depending on the subject.
4391 *) Have the zlib compression code load ZLIB.DLL dynamically under
4395 *) New function BN_mod_sqrt for computing square roots modulo a prime
4396 (using the probabilistic Tonelli-Shanks algorithm unless
4397 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
4398 be handled deterministically).
4399 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4401 *) Make BN_mod_inverse faster by explicitly handling small quotients
4402 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
4403 512 bits], about 30% for larger ones [1024 or 2048 bits].)
4406 *) New function BN_kronecker.
4409 *) Fix BN_gcd so that it works on negative inputs; the result is
4410 positive unless both parameters are zero.
4411 Previously something reasonably close to an infinite loop was
4412 possible because numbers could be growing instead of shrinking
4413 in the implementation of Euclid's algorithm.
4416 *) Fix BN_is_word() and BN_is_one() macros to take into account the
4417 sign of the number in question.
4419 Fix BN_is_word(a,w) to work correctly for w == 0.
4421 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
4422 because its test if the absolute value of 'a' equals 'w'.
4423 Note that BN_abs_is_word does *not* handle w == 0 reliably;
4424 it exists mostly for use in the implementations of BN_is_zero(),
4425 BN_is_one(), and BN_is_word().
4428 *) New function BN_swap.
4431 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
4432 the exponentiation functions are more likely to produce reasonable
4433 results on negative inputs.
4436 *) Change BN_mod_mul so that the result is always non-negative.
4437 Previously, it could be negative if one of the factors was negative;
4438 I don't think anyone really wanted that behaviour.
4441 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
4442 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
4443 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
4444 and add new functions:
4453 BN_mod_lshift1_quick
4457 These functions always generate non-negative results.
4459 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
4460 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
4462 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
4463 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
4464 be reduced modulo m.
4465 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
4468 The following entry accidentily appeared in the CHANGES file
4469 distributed with OpenSSL 0.9.7. The modifications described in
4470 it do *not* apply to OpenSSL 0.9.7.
4472 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4473 was actually never needed) and in BN_mul(). The removal in BN_mul()
4474 required a small change in bn_mul_part_recursive() and the addition
4475 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4476 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4477 bn_sub_words() and bn_add_words() except they take arrays with
4482 *) In 'openssl passwd', verify passwords read from the terminal
4483 unless the '-salt' option is used (which usually means that
4484 verification would just waste user's time since the resulting
4485 hash is going to be compared with some given password hash)
4486 or the new '-noverify' option is used.
4488 This is an incompatible change, but it does not affect
4489 non-interactive use of 'openssl passwd' (passwords on the command
4490 line, '-stdin' option, '-in ...' option) and thus should not
4494 *) Remove all references to RSAref, since there's no more need for it.
4497 *) Make DSO load along a path given through an environment variable
4498 (SHLIB_PATH) with shl_load().
4501 *) Constify the ENGINE code as a result of BIGNUM constification.
4502 Also constify the RSA code and most things related to it. In a
4503 few places, most notable in the depth of the ASN.1 code, ugly
4504 casts back to non-const were required (to be solved at a later
4508 *) Make it so the openssl application has all engines loaded by default.
4511 *) Constify the BIGNUM routines a little more.
4514 *) Add the following functions:
4516 ENGINE_load_cswift()
4518 ENGINE_load_atalla()
4520 ENGINE_load_builtin_engines()
4522 That way, an application can itself choose if external engines that
4523 are built-in in OpenSSL shall ever be used or not. The benefit is
4524 that applications won't have to be linked with libdl or other dso
4525 libraries unless it's really needed.
4527 Changed 'openssl engine' to load all engines on demand.
4528 Changed the engine header files to avoid the duplication of some
4529 declarations (they differed!).
4532 *) 'openssl engine' can now list capabilities.
4535 *) Better error reporting in 'openssl engine'.
4538 *) Never call load_dh_param(NULL) in s_server.
4541 *) Add engine application. It can currently list engines by name and
4542 identity, and test if they are actually available.
4545 *) Improve RPM specification file by forcing symbolic linking and making
4546 sure the installed documentation is also owned by root.root.
4547 [Damien Miller <djm@mindrot.org>]
4549 *) Give the OpenSSL applications more possibilities to make use of
4550 keys (public as well as private) handled by engines.
4553 *) Add OCSP code that comes from CertCo.
4556 *) Add VMS support for the Rijndael code.
4559 *) Added untested support for Nuron crypto accelerator.
4562 *) Add support for external cryptographic devices. This code was
4563 previously distributed separately as the "engine" branch.
4564 [Geoff Thorpe, Richard Levitte]
4566 *) Rework the filename-translation in the DSO code. It is now possible to
4567 have far greater control over how a "name" is turned into a filename
4568 depending on the operating environment and any oddities about the
4569 different shared library filenames on each system.
4572 *) Support threads on FreeBSD-elf in Configure.
4575 *) Fix for SHA1 assembly problem with MASM: it produces
4576 warnings about corrupt line number information when assembling
4577 with debugging information. This is caused by the overlapping
4579 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
4582 NCONF_get_number() has no error checking at all. As a replacement,
4583 NCONF_get_number_e() is defined (_e for "error checking") and is
4584 promoted strongly. The old NCONF_get_number is kept around for
4585 binary backward compatibility.
4586 Make it possible for methods to load from something other than a BIO,
4587 by providing a function pointer that is given a name instead of a BIO.
4588 For example, this could be used to load configuration data from an
4592 *) Fix for non blocking accept BIOs. Added new I/O special reason
4593 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
4594 with non blocking I/O was not possible because no retry code was
4595 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
4599 *) Added the beginnings of Rijndael support.
4602 *) Fix for bug in DirectoryString mask setting. Add support for
4603 X509_NAME_print_ex() in 'req' and X509_print_ex() function
4604 to allow certificate printing to more controllable, additional
4605 'certopt' option to 'x509' to allow new printing options to be
4609 *) Clean old EAY MD5 hack from e_os.h.
4612 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
4614 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
4615 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
4616 [Joe Orton, Steve Henson]
4618 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
4620 *) Fix additional bug revealed by the NISCC test suite:
4622 Stop bug triggering large recursion when presented with
4623 certain ASN.1 tags (CVE-2003-0851)
4626 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
4628 *) Fix various bugs revealed by running the NISCC test suite:
4630 Stop out of bounds reads in the ASN1 code when presented with
4631 invalid tags (CVE-2003-0543 and CVE-2003-0544).
4633 If verify callback ignores invalid public key errors don't try to check
4634 certificate signature with the NULL public key.
4638 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4639 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4643 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4644 extra data after the compression methods not only for TLS 1.0
4645 but also for SSL 3.0 (as required by the specification).
4646 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4648 *) Change X509_certificate_type() to mark the key as exported/exportable
4649 when it's 512 *bits* long, not 512 bytes.
4652 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
4654 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4655 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4656 a protocol version number mismatch like a decryption error
4657 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4660 *) Turn on RSA blinding by default in the default implementation
4661 to avoid a timing attack. Applications that don't want it can call
4662 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4663 They would be ill-advised to do so in most cases.
4664 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4666 *) Change RSA blinding code so that it works when the PRNG is not
4667 seeded (in this case, the secret RSA exponent is abused as
4668 an unpredictable seed -- if it is not unpredictable, there
4669 is no point in blinding anyway). Make RSA blinding thread-safe
4670 by remembering the creator's thread ID in rsa->blinding and
4671 having all other threads use local one-time blinding factors
4672 (this requires more computation than sharing rsa->blinding, but
4673 avoids excessive locking; and if an RSA object is not shared
4674 between threads, blinding will still be very fast).
4677 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
4679 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4680 via timing by performing a MAC computation even if incorrrect
4681 block cipher padding has been found. This is a countermeasure
4682 against active attacks where the attacker has to distinguish
4683 between bad padding and a MAC verification error. (CVE-2003-0078)
4685 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4686 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4687 Martin Vuagnoux (EPFL, Ilion)]
4689 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
4691 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
4692 memory from it's contents. This is done with a counter that will
4693 place alternating values in each byte. This can be used to solve
4694 two issues: 1) the removal of calls to memset() by highly optimizing
4695 compilers, and 2) cleansing with other values than 0, since those can
4696 be read through on certain media, for example a swap space on disk.
4699 *) Bugfix: client side session caching did not work with external caching,
4700 because the session->cipher setting was not restored when reloading
4701 from the external cache. This problem was masked, when
4702 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
4703 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
4706 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
4707 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
4708 [Zeev Lieber <zeev-l@yahoo.com>]
4710 *) Undo an undocumented change introduced in 0.9.6e which caused
4711 repeated calls to OpenSSL_add_all_ciphers() and
4712 OpenSSL_add_all_digests() to be ignored, even after calling
4716 *) Change the default configuration reader to deal with last line not
4717 being properly terminated.
4720 *) Change X509_NAME_cmp() so it applies the special rules on handling
4721 DN values that are of type PrintableString, as well as RDNs of type
4722 emailAddress where the value has the type ia5String.
4723 [stefank@valicert.com via Richard Levitte]
4725 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
4726 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
4727 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
4728 the bitwise-OR of the two for use by the majority of applications
4729 wanting this behaviour, and update the docs. The documented
4730 behaviour and actual behaviour were inconsistent and had been
4731 changing anyway, so this is more a bug-fix than a behavioural
4733 [Geoff Thorpe, diagnosed by Nadav Har'El]
4735 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
4736 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
4739 *) Fix initialization code race conditions in
4740 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
4741 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
4742 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
4743 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
4744 ssl2_get_cipher_by_char(),
4745 ssl3_get_cipher_by_char().
4746 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
4748 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
4749 the cached sessions are flushed, as the remove_cb() might use ex_data
4750 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
4751 (see [openssl.org #212]).
4752 [Geoff Thorpe, Lutz Jaenicke]
4754 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
4755 length, instead of the encoding length to d2i_ASN1_OBJECT.
4758 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
4760 *) [In 0.9.6g-engine release:]
4761 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
4762 [Lynn Gazis <lgazis@rainbow.com>]
4764 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
4766 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
4767 and get fix the header length calculation.
4768 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
4769 Alon Kantor <alonk@checkpoint.com> (and others),
4772 *) Use proper error handling instead of 'assertions' in buffer
4773 overflow checks added in 0.9.6e. This prevents DoS (the
4774 assertions could call abort()).
4775 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
4777 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
4779 *) Add various sanity checks to asn1_get_length() to reject
4780 the ASN1 length bytes if they exceed sizeof(long), will appear
4781 negative or the content length exceeds the length of the
4783 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4785 *) Fix cipher selection routines: ciphers without encryption had no flags
4786 for the cipher strength set and where therefore not handled correctly
4787 by the selection routines (PR #130).
4790 *) Fix EVP_dsa_sha macro.
4794 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
4795 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
4796 that was added in OpenSSL 0.9.6d.
4798 As the countermeasure turned out to be incompatible with some
4799 broken SSL implementations, the new option is part of SSL_OP_ALL.
4800 SSL_OP_ALL is usually employed when compatibility with weird SSL
4801 implementations is desired (e.g. '-bugs' option to 's_client' and
4802 's_server'), so the new option is automatically set in many
4806 *) Changes in security patch:
4808 Changes marked "(CHATS)" were sponsored by the Defense Advanced
4809 Research Projects Agency (DARPA) and Air Force Research Laboratory,
4810 Air Force Materiel Command, USAF, under agreement number
4813 *) Add various sanity checks to asn1_get_length() to reject
4814 the ASN1 length bytes if they exceed sizeof(long), will appear
4815 negative or the content length exceeds the length of the
4816 supplied buffer. (CVE-2002-0659)
4817 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
4819 *) Assertions for various potential buffer overflows, not known to
4821 [Ben Laurie (CHATS)]
4823 *) Various temporary buffers to hold ASCII versions of integers were
4824 too small for 64 bit platforms. (CVE-2002-0655)
4825 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
4827 *) Remote buffer overflow in SSL3 protocol - an attacker could
4828 supply an oversized session ID to a client. (CVE-2002-0656)
4829 [Ben Laurie (CHATS)]
4831 *) Remote buffer overflow in SSL2 protocol - an attacker could
4832 supply an oversized client master key. (CVE-2002-0656)
4833 [Ben Laurie (CHATS)]
4835 Changes between 0.9.6c and 0.9.6d [9 May 2002]
4837 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
4838 encoded as NULL) with id-dsa-with-sha1.
4839 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
4841 *) Check various X509_...() return values in apps/req.c.
4842 [Nils Larsch <nla@trustcenter.de>]
4844 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
4845 an end-of-file condition would erronously be flagged, when the CRLF
4846 was just at the end of a processed block. The bug was discovered when
4847 processing data through a buffering memory BIO handing the data to a
4848 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
4849 <ptsekov@syntrex.com> and Nedelcho Stanev.
4852 *) Implement a countermeasure against a vulnerability recently found
4853 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
4854 before application data chunks to avoid the use of known IVs
4855 with data potentially chosen by the attacker.
4858 *) Fix length checks in ssl3_get_client_hello().
4861 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
4862 to prevent ssl3_read_internal() from incorrectly assuming that
4863 ssl3_read_bytes() found application data while handshake
4864 processing was enabled when in fact s->s3->in_read_app_data was
4865 merely automatically cleared during the initial handshake.
4866 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
4868 *) Fix object definitions for Private and Enterprise: they were not
4869 recognized in their shortname (=lowercase) representation. Extend
4870 obj_dat.pl to issue an error when using undefined keywords instead
4871 of silently ignoring the problem (Svenning Sorensen
4872 <sss@sss.dnsalias.net>).
4875 *) Fix DH_generate_parameters() so that it works for 'non-standard'
4876 generators, i.e. generators other than 2 and 5. (Previously, the
4877 code did not properly initialise the 'add' and 'rem' values to
4878 BN_generate_prime().)
4880 In the new general case, we do not insist that 'generator' is
4881 actually a primitive root: This requirement is rather pointless;
4882 a generator of the order-q subgroup is just as good, if not
4886 *) Map new X509 verification errors to alerts. Discovered and submitted by
4887 Tom Wu <tom@arcot.com>.
4890 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
4891 returning non-zero before the data has been completely received
4892 when using non-blocking I/O.
4893 [Bodo Moeller; problem pointed out by John Hughes]
4895 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
4896 [Ben Laurie, Lutz Jaenicke]
4898 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
4899 Yoram Zahavi <YoramZ@gilian.com>).
4902 *) Add information about CygWin 1.3 and on, and preserve proper
4903 configuration for the versions before that.
4904 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4906 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
4907 check whether we deal with a copy of a session and do not delete from
4908 the cache in this case. Problem reported by "Izhar Shoshani Levi"
4909 <izhar@checkpoint.com>.
4912 *) Do not store session data into the internal session cache, if it
4913 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
4914 flag is set). Proposed by Aslam <aslam@funk.com>.
4917 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
4921 *) [In 0.9.6d-engine release:]
4922 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4923 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4925 *) Add the configuration target linux-s390x.
4926 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
4928 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
4929 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
4930 variable as an indication that a ClientHello message has been
4931 received. As the flag value will be lost between multiple
4932 invocations of ssl3_accept when using non-blocking I/O, the
4933 function may not be aware that a handshake has actually taken
4934 place, thus preventing a new session from being added to the
4937 To avoid this problem, we now set s->new_session to 2 instead of
4938 using a local variable.
4939 [Lutz Jaenicke, Bodo Moeller]
4941 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
4942 if the SSL_R_LENGTH_MISMATCH error is detected.
4943 [Geoff Thorpe, Bodo Moeller]
4945 *) New 'shared_ldflag' column in Configure platform table.
4948 *) Fix EVP_CIPHER_mode macro.
4949 ["Dan S. Camper" <dan@bti.net>]
4951 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
4952 type, we must throw them away by setting rr->length to 0.
4953 [D P Chang <dpc@qualys.com>]
4955 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
4957 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
4958 <Dominikus.Scherkl@biodata.com>. (The previous implementation
4959 worked incorrectly for those cases where range = 10..._2 and
4960 3*range is two bits longer than range.)
4963 *) Only add signing time to PKCS7 structures if it is not already
4967 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
4968 OBJ_ld_ce should be OBJ_id_ce.
4969 Also some ip-pda OIDs in crypto/objects/objects.txt were
4970 incorrect (cf. RFC 3039).
4971 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
4973 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
4974 returns early because it has nothing to do.
4975 [Andy Schneider <andy.schneider@bjss.co.uk>]
4977 *) [In 0.9.6c-engine release:]
4978 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
4979 [Andy Schneider <andy.schneider@bjss.co.uk>]
4981 *) [In 0.9.6c-engine release:]
4982 Add support for Cryptographic Appliance's keyserver technology.
4983 (Use engine 'keyclient')
4984 [Cryptographic Appliances and Geoff Thorpe]
4986 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
4987 is called via tools/c89.sh because arguments have to be
4988 rearranged (all '-L' options must appear before the first object
4990 [Richard Shapiro <rshapiro@abinitio.com>]
4992 *) [In 0.9.6c-engine release:]
4993 Add support for Broadcom crypto accelerator cards, backported
4995 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
4997 *) [In 0.9.6c-engine release:]
4998 Add support for SureWare crypto accelerator cards from
4999 Baltimore Technologies. (Use engine 'sureware')
5000 [Baltimore Technologies and Mark Cox]
5002 *) [In 0.9.6c-engine release:]
5003 Add support for crypto accelerator cards from Accelerated
5004 Encryption Processing, www.aep.ie. (Use engine 'aep')
5005 [AEP Inc. and Mark Cox]
5007 *) Add a configuration entry for gcc on UnixWare.
5008 [Gary Benson <gbenson@redhat.com>]
5010 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5011 messages are stored in a single piece (fixed-length part and
5012 variable-length part combined) and fix various bugs found on the way.
5015 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5016 instead. BIO_gethostbyname() does not know what timeouts are
5017 appropriate, so entries would stay in cache even when they have
5019 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5021 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5022 faced with a pathologically small ClientHello fragment that does
5023 not contain client_version: Instead of aborting with an error,
5024 simply choose the highest available protocol version (i.e.,
5025 TLS 1.0 unless it is disabled). In practice, ClientHello
5026 messages are never sent like this, but this change gives us
5027 strictly correct behaviour at least for TLS.
5030 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5031 never resets s->method to s->ctx->method when called from within
5032 one of the SSL handshake functions.
5033 [Bodo Moeller; problem pointed out by Niko Baric]
5035 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5036 (sent using the client's version number) if client_version is
5037 smaller than the protocol version in use. Also change
5038 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5039 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5040 the client will at least see that alert.
5043 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5047 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5048 client receives HelloRequest while in a handshake.
5049 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5051 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5052 should end in 'break', not 'goto end' which circuments various
5053 cleanups done in state SSL_ST_OK. But session related stuff
5054 must be disabled for SSL_ST_OK in the case that we just sent a
5057 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5058 before just sending a HelloRequest.
5059 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5061 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5062 reveal whether illegal block cipher padding was found or a MAC
5063 verification error occured. (Neither SSLerr() codes nor alerts
5064 are directly visible to potential attackers, but the information
5065 may leak via logfiles.)
5067 Similar changes are not required for the SSL 2.0 implementation
5068 because the number of padding bytes is sent in clear for SSL 2.0,
5069 and the extra bytes are just ignored. However ssl/s2_pkt.c
5070 failed to verify that the purported number of padding bytes is in
5074 *) Add OpenUNIX-8 support including shared libraries
5075 (Boyd Lynn Gerber <gerberb@zenez.com>).
5078 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5079 'wristwatch attack' using huge encoding parameters (cf.
5080 James H. Manger's CRYPTO 2001 paper). Note that the
5081 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5082 encoding parameters and hence was not vulnerable.
5085 *) BN_sqr() bug fix.
5086 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5088 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5089 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5090 followed by modular reduction.
5091 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5093 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5094 equivalent based on BN_pseudo_rand() instead of BN_rand().
5097 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5098 This function was broken, as the check for a new client hello message
5099 to handle SGC did not allow these large messages.
5100 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5103 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5106 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5107 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5110 *) Rework the configuration and shared library support for Tru64 Unix.
5111 The configuration part makes use of modern compiler features and
5112 still retains old compiler behavior for those that run older versions
5113 of the OS. The shared library support part includes a variant that
5114 uses the RPATH feature, and is available through the special
5115 configuration target "alpha-cc-rpath", which will never be selected
5117 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5119 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5120 with the same message size as in ssl3_get_certificate_request().
5121 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5122 messages might inadvertently be reject as too long.
5123 [Petr Lampa <lampa@fee.vutbr.cz>]
5125 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5128 *) Modified SSL library such that the verify_callback that has been set
5129 specificly for an SSL object with SSL_set_verify() is actually being
5130 used. Before the change, a verify_callback set with this function was
5131 ignored and the verify_callback() set in the SSL_CTX at the time of
5132 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5133 to allow the necessary settings.
5136 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5137 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5138 done automatically (in contradiction to the requirements of the C
5139 standard). This made problems when used from OpenSSH.
5142 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5143 dh->length and always used
5145 BN_rand_range(priv_key, dh->p).
5147 BN_rand_range() is not necessary for Diffie-Hellman, and this
5148 specific range makes Diffie-Hellman unnecessarily inefficient if
5149 dh->length (recommended exponent length) is much smaller than the
5150 length of dh->p. We could use BN_rand_range() if the order of
5151 the subgroup was stored in the DH structure, but we only have
5156 BN_rand(priv_key, l, ...)
5158 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5164 RSA_eay_public_encrypt
5165 RSA_eay_private_decrypt
5166 RSA_eay_private_encrypt (signing)
5167 RSA_eay_public_decrypt (signature verification)
5169 (default implementations for RSA_public_encrypt,
5170 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5171 always reject numbers >= n.
5174 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5175 to synchronize access to 'locking_thread'. This is necessary on
5176 systems where access to 'locking_thread' (an 'unsigned long'
5177 variable) is not atomic.
5180 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5181 *before* setting the 'crypto_lock_rand' flag. The previous code had
5182 a race condition if 0 is a valid thread ID.
5183 [Travis Vitek <vitek@roguewave.com>]
5185 *) Add support for shared libraries under Irix.
5186 [Albert Chin-A-Young <china@thewrittenword.com>]
5188 *) Add configuration option to build on Linux on both big-endian and
5190 [Ralf Baechle <ralf@uni-koblenz.de>]
5192 *) Add the possibility to create shared libraries on HP-UX.
5195 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5197 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5198 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5199 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5200 PRNG state recovery was possible based on the output of
5201 one PRNG request appropriately sized to gain knowledge on
5202 'md' followed by enough consecutive 1-byte PRNG requests
5203 to traverse all of 'state'.
5205 1. When updating 'md_local' (the current thread's copy of 'md')
5206 during PRNG output generation, hash all of the previous
5207 'md_local' value, not just the half used for PRNG output.
5209 2. Make the number of bytes from 'state' included into the hash
5210 independent from the number of PRNG bytes requested.
5212 The first measure alone would be sufficient to avoid
5213 Markku-Juhani's attack. (Actually it had never occurred
5214 to me that the half of 'md_local' used for chaining was the
5215 half from which PRNG output bytes were taken -- I had always
5216 assumed that the secret half would be used.) The second
5217 measure makes sure that additional data from 'state' is never
5218 mixed into 'md_local' in small portions; this heuristically
5219 further strengthens the PRNG.
5222 *) Fix crypto/bn/asm/mips3.s.
5225 *) When only the key is given to "enc", the IV is undefined. Print out
5226 an error message in this case.
5229 *) Handle special case when X509_NAME is empty in X509 printing routines.
5232 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5233 positive and less than q.
5236 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5237 used: it isn't thread safe and the add_lock_callback should handle
5239 [Paul Rose <Paul.Rose@bridge.com>]
5241 *) Verify that incoming data obeys the block size in
5242 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5246 [Ulf Möller, Bodo Möller]
5248 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
5249 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
5250 when fixing the server behaviour for backwards-compatible 'client
5251 hello' messages. (Note that the attack is impractical against
5252 SSL 3.0 and TLS 1.0 anyway because length and version checking
5253 means that the probability of guessing a valid ciphertext is
5254 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
5257 Before 0.9.5, the countermeasure (hide the error by generating a
5258 random 'decryption result') did not work properly because
5259 ERR_clear_error() was missing, meaning that SSL_get_error() would
5260 detect the supposedly ignored error.
5262 Both problems are now fixed.
5265 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
5266 (previously it was 1024).
5269 *) Fix for compatibility mode trust settings: ignore trust settings
5270 unless some valid trust or reject settings are present.
5273 *) Fix for blowfish EVP: its a variable length cipher.
5276 *) Fix various bugs related to DSA S/MIME verification. Handle missing
5277 parameters in DSA public key structures and return an error in the
5278 DSA routines if parameters are absent.
5281 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
5282 in the current directory if neither $RANDFILE nor $HOME was set.
5283 RAND_file_name() in 0.9.6a returned NULL in this case. This has
5284 caused some confusion to Windows users who haven't defined $HOME.
5285 Thus RAND_file_name() is changed again: e_os.h can define a
5286 DEFAULT_HOME, which will be used if $HOME is not set.
5287 For Windows, we use "C:"; on other platforms, we still require
5288 environment variables.
5290 *) Move 'if (!initialized) RAND_poll()' into regions protected by
5291 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
5292 having multiple threads call RAND_poll() concurrently.
5295 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
5296 combination of a flag and a thread ID variable.
5297 Otherwise while one thread is in ssleay_rand_bytes (which sets the
5298 flag), *other* threads can enter ssleay_add_bytes without obeying
5299 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
5300 that they do not hold after the first thread unsets add_do_not_lock).
5303 *) Change bctest again: '-x' expressions are not available in all
5307 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
5309 *) Fix a couple of memory leaks in PKCS7_dataDecode()
5310 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
5312 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
5313 the default extension for executables, if any. Also, make the perl
5314 scripts that use symlink() to test if it really exists and use "cp"
5315 if it doesn't. All this made OpenSSL compilable and installable in
5319 *) Fix for asn1_GetSequence() for indefinite length constructed data.
5320 If SEQUENCE is length is indefinite just set c->slen to the total
5321 amount of data available.
5322 [Steve Henson, reported by shige@FreeBSD.org]
5323 [This change does not apply to 0.9.7.]
5325 *) Change bctest to avoid here-documents inside command substitution
5326 (workaround for FreeBSD /bin/sh bug).
5327 For compatibility with Ultrix, avoid shell functions (introduced
5328 in the bctest version that searches along $PATH).
5331 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
5332 with des_encrypt() defined on some operating systems, like Solaris
5336 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
5337 On the Importance of Eliminating Errors in Cryptographic
5338 Computations, J. Cryptology 14 (2001) 2, 101-119,
5339 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
5342 *) MIPS assembler BIGNUM division bug fix.
5345 *) Disabled incorrect Alpha assembler code.
5348 *) Fix PKCS#7 decode routines so they correctly update the length
5349 after reading an EOC for the EXPLICIT tag.
5351 [This change does not apply to 0.9.7.]
5353 *) Fix bug in PKCS#12 key generation routines. This was triggered
5354 if a 3DES key was generated with a 0 initial byte. Include
5355 PKCS12_BROKEN_KEYGEN compilation option to retain the old
5356 (but broken) behaviour.
5359 *) Enhance bctest to search for a working bc along $PATH and print
5361 [Tim Rice <tim@multitalents.net> via Richard Levitte]
5363 *) Fix memory leaks in err.c: free err_data string if necessary;
5364 don't write to the wrong index in ERR_set_error_data.
5367 *) Implement ssl23_peek (analogous to ssl23_read), which previously
5371 *) Replace rdtsc with _emit statements for VC++ version 5.
5372 [Jeremy Cooper <jeremy@baymoo.org>]
5374 *) Make it possible to reuse SSLv2 sessions.
5377 *) In copy_email() check for >= 0 as a return value for
5378 X509_NAME_get_index_by_NID() since 0 is a valid index.
5379 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
5381 *) Avoid coredump with unsupported or invalid public keys by checking if
5382 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
5383 PKCS7_verify() fails with non detached data.
5386 *) Don't use getenv in library functions when run as setuid/setgid.
5387 New function OPENSSL_issetugid().
5390 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
5391 due to incorrect handling of multi-threading:
5393 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
5395 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
5397 3. Count how many times MemCheck_off() has been called so that
5398 nested use can be treated correctly. This also avoids
5399 inband-signalling in the previous code (which relied on the
5400 assumption that thread ID 0 is impossible).
5403 *) Add "-rand" option also to s_client and s_server.
5406 *) Fix CPU detection on Irix 6.x.
5407 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
5408 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5410 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
5413 [This change does not apply to 0.9.7.]
5415 *) Use the cached encoding of an X509_NAME structure rather than
5416 copying it. This is apparently the reason for the libsafe "errors"
5417 but the code is actually correct.
5420 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
5421 Bleichenbacher's DSA attack.
5422 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
5423 to be set and top=0 forces the highest bit to be set; top=-1 is new
5424 and leaves the highest bit random.
5425 [Ulf Moeller, Bodo Moeller]
5427 *) In the NCONF_...-based implementations for CONF_... queries
5428 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
5429 a temporary CONF structure with the data component set to NULL
5430 (which gives segmentation faults in lh_retrieve).
5431 Instead, use NULL for the CONF pointer in CONF_get_string and
5432 CONF_get_number (which may use environment variables) and directly
5433 return NULL from CONF_get_section.
5436 *) Fix potential buffer overrun for EBCDIC.
5439 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
5440 keyUsage if basicConstraints absent for a CA.
5443 *) Make SMIME_write_PKCS7() write mail header values with a format that
5444 is more generally accepted (no spaces before the semicolon), since
5445 some programs can't parse those values properly otherwise. Also make
5446 sure BIO's that break lines after each write do not create invalid
5450 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
5451 macros previously used would not encode an empty SEQUENCE OF
5452 and break the signature.
5454 [This change does not apply to 0.9.7.]
5456 *) Zero the premaster secret after deriving the master secret in
5460 *) Add some EVP_add_digest_alias registrations (as found in
5461 OpenSSL_add_all_digests()) to SSL_library_init()
5462 aka OpenSSL_add_ssl_algorithms(). This provides improved
5463 compatibility with peers using X.509 certificates
5464 with unconventional AlgorithmIdentifier OIDs.
5467 *) Fix for Irix with NO_ASM.
5468 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
5470 *) ./config script fixes.
5471 [Ulf Moeller, Richard Levitte]
5473 *) Fix 'openssl passwd -1'.
5476 *) Change PKCS12_key_gen_asc() so it can cope with non null
5477 terminated strings whose length is passed in the passlen
5478 parameter, for example from PEM callbacks. This was done
5479 by adding an extra length parameter to asc2uni().
5480 [Steve Henson, reported by <oddissey@samsung.co.kr>]
5482 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
5483 call failed, free the DSA structure.
5486 *) Fix to uni2asc() to cope with zero length Unicode strings.
5487 These are present in some PKCS#12 files.
5490 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
5491 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
5492 when writing a 32767 byte record.
5493 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
5495 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
5496 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
5498 (RSA objects have a reference count access to which is protected
5499 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
5500 so they are meant to be shared between threads.)
5501 [Bodo Moeller, Geoff Thorpe; original patch submitted by
5502 "Reddie, Steven" <Steven.Reddie@ca.com>]
5504 *) Fix a deadlock in CRYPTO_mem_leaks().
5507 *) Use better test patterns in bntest.
5510 *) rand_win.c fix for Borland C.
5513 *) BN_rshift bugfix for n == 0.
5516 *) Add a 'bctest' script that checks for some known 'bc' bugs
5517 so that 'make test' does not abort just because 'bc' is broken.
5520 *) Store verify_result within SSL_SESSION also for client side to
5521 avoid potential security hole. (Re-used sessions on the client side
5522 always resulted in verify_result==X509_V_OK, not using the original
5523 result of the server certificate verification.)
5526 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
5527 SSL3_RT_APPLICATION_DATA, return 0.
5528 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
5532 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
5533 releases, have been re-implemented by renaming the previous
5534 implementations of ssl2_read and ssl3_read to ssl2_read_internal
5535 and ssl3_read_internal, respectively, and adding 'peek' parameters
5536 to them. The new ssl[23]_{read,peek} functions are calls to
5537 ssl[23]_read_internal with the 'peek' flag set appropriately.
5538 A 'peek' parameter has also been added to ssl3_read_bytes, which
5539 does the actual work for ssl3_read_internal.
5542 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
5543 the method-specific "init()" handler. Also clean up ex_data after
5544 calling the method-specific "finish()" handler. Previously, this was
5545 happening the other way round.
5548 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
5549 The previous value, 12, was not always sufficient for BN_mod_exp().
5552 *) Make sure that shared libraries get the internal name engine with
5553 the full version number and not just 0. This should mark the
5554 shared libraries as not backward compatible. Of course, this should
5555 be changed again when we can guarantee backward binary compatibility.
5558 *) Fix typo in get_cert_by_subject() in by_dir.c
5559 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
5561 *) Rework the system to generate shared libraries:
5563 - Make note of the expected extension for the shared libraries and
5564 if there is a need for symbolic links from for example libcrypto.so.0
5565 to libcrypto.so.0.9.7. There is extended info in Configure for
5568 - Make as few rebuilds of the shared libraries as possible.
5570 - Still avoid linking the OpenSSL programs with the shared libraries.
5572 - When installing, install the shared libraries separately from the
5576 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
5578 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
5579 and not in SSL_clear because the latter is also used by the
5580 accept/connect functions; previously, the settings made by
5581 SSL_set_read_ahead would be lost during the handshake.
5582 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
5584 *) Correct util/mkdef.pl to be selective about disabled algorithms.
5585 Previously, it would create entries for disableed algorithms no
5589 *) Added several new manual pages for SSL_* function.
5592 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
5594 *) In ssl23_get_client_hello, generate an error message when faced
5595 with an initial SSL 3.0/TLS record that is too small to contain the
5596 first two bytes of the ClientHello message, i.e. client_version.
5597 (Note that this is a pathologic case that probably has never happened
5598 in real life.) The previous approach was to use the version number
5599 from the record header as a substitute; but our protocol choice
5600 should not depend on that one because it is not authenticated
5601 by the Finished messages.
5604 *) More robust randomness gathering functions for Windows.
5605 [Jeffrey Altman <jaltman@columbia.edu>]
5607 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
5608 not set then we don't setup the error code for issuer check errors
5609 to avoid possibly overwriting other errors which the callback does
5610 handle. If an application does set the flag then we assume it knows
5611 what it is doing and can handle the new informational codes
5615 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
5616 a general "ANY" type, as such it should be able to decode anything
5617 including tagged types. However it didn't check the class so it would
5618 wrongly interpret tagged types in the same way as their universal
5619 counterpart and unknown types were just rejected. Changed so that the
5620 tagged and unknown types are handled in the same way as a SEQUENCE:
5621 that is the encoding is stored intact. There is also a new type
5622 "V_ASN1_OTHER" which is used when the class is not universal, in this
5623 case we have no idea what the actual type is so we just lump them all
5627 *) On VMS, stdout may very well lead to a file that is written to
5628 in a record-oriented fashion. That means that every write() will
5629 write a separate record, which will be read separately by the
5630 programs trying to read from it. This can be very confusing.
5632 The solution is to put a BIO filter in the way that will buffer
5633 text until a linefeed is reached, and then write everything a
5634 line at a time, so every record written will be an actual line,
5635 not chunks of lines and not (usually doesn't happen, but I've
5636 seen it once) several lines in one record. BIO_f_linebuffer() is
5639 Currently, it's a VMS-only method, because that's where it has
5640 been tested well enough.
5643 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
5644 it can return incorrect results.
5645 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
5646 but it was in 0.9.6-beta[12].)
5649 *) Disable the check for content being present when verifying detached
5650 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
5651 include zero length content when signing messages.
5654 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
5655 BIO_ctrl (for BIO pairs).
5658 *) Add DSO method for VMS.
5661 *) Bug fix: Montgomery multiplication could produce results with the
5665 *) Add RPM specification openssl.spec and modify it to build three
5666 packages. The default package contains applications, application
5667 documentation and run-time libraries. The devel package contains
5668 include files, static libraries and function documentation. The
5669 doc package contains the contents of the doc directory. The original
5670 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
5673 *) Add a large number of documentation files for many SSL routines.
5674 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5676 *) Add a configuration entry for Sony News 4.
5677 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
5679 *) Don't set the two most significant bits to one when generating a
5680 random number < q in the DSA library.
5683 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
5684 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
5685 the underlying transport is blocking) if a handshake took place.
5686 (The default behaviour is needed by applications such as s_client
5687 and s_server that use select() to determine when to use SSL_read;
5688 but for applications that know in advance when to expect data, it
5689 just makes things more complicated.)
5692 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
5696 *) Add a few more EBCDIC conditionals that make `req' and `x509'
5697 work better on such systems.
5698 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
5700 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
5701 Update PKCS12_parse() so it copies the friendlyName and the
5702 keyid to the certificates aux info.
5705 *) Fix bug in PKCS7_verify() which caused an infinite loop
5706 if there was more than one signature.
5707 [Sven Uszpelkat <su@celocom.de>]
5709 *) Major change in util/mkdef.pl to include extra information
5710 about each symbol, as well as presentig variables as well
5711 as functions. This change means that there's n more need
5712 to rebuild the .num files when some algorithms are excluded.
5715 *) Allow the verify time to be set by an application,
5716 rather than always using the current time.
5719 *) Phase 2 verify code reorganisation. The certificate
5720 verify code now looks up an issuer certificate by a
5721 number of criteria: subject name, authority key id
5722 and key usage. It also verifies self signed certificates
5723 by the same criteria. The main comparison function is
5724 X509_check_issued() which performs these checks.
5726 Lot of changes were necessary in order to support this
5727 without completely rewriting the lookup code.
5729 Authority and subject key identifier are now cached.
5731 The LHASH 'certs' is X509_STORE has now been replaced
5732 by a STACK_OF(X509_OBJECT). This is mainly because an
5733 LHASH can't store or retrieve multiple objects with
5734 the same hash value.
5736 As a result various functions (which were all internal
5737 use only) have changed to handle the new X509_STORE
5738 structure. This will break anything that messed round
5739 with X509_STORE internally.
5741 The functions X509_STORE_add_cert() now checks for an
5742 exact match, rather than just subject name.
5744 The X509_STORE API doesn't directly support the retrieval
5745 of multiple certificates matching a given criteria, however
5746 this can be worked round by performing a lookup first
5747 (which will fill the cache with candidate certificates)
5748 and then examining the cache for matches. This is probably
5749 the best we can do without throwing out X509_LOOKUP
5750 entirely (maybe later...).
5752 The X509_VERIFY_CTX structure has been enhanced considerably.
5754 All certificate lookup operations now go via a get_issuer()
5755 callback. Although this currently uses an X509_STORE it
5756 can be replaced by custom lookups. This is a simple way
5757 to bypass the X509_STORE hackery necessary to make this
5758 work and makes it possible to use more efficient techniques
5759 in future. A very simple version which uses a simple
5760 STACK for its trusted certificate store is also provided
5761 using X509_STORE_CTX_trusted_stack().
5763 The verify_cb() and verify() callbacks now have equivalents
5764 in the X509_STORE_CTX structure.
5766 X509_STORE_CTX also has a 'flags' field which can be used
5767 to customise the verify behaviour.
5770 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
5771 excludes S/MIME capabilities.
5774 *) When a certificate request is read in keep a copy of the
5775 original encoding of the signed data and use it when outputing
5776 again. Signatures then use the original encoding rather than
5777 a decoded, encoded version which may cause problems if the
5778 request is improperly encoded.
5781 *) For consistency with other BIO_puts implementations, call
5782 buffer_write(b, ...) directly in buffer_puts instead of calling
5785 In BIO_puts, increment b->num_write as in BIO_write.
5786 [Peter.Sylvester@EdelWeb.fr]
5788 *) Fix BN_mul_word for the case where the word is 0. (We have to use
5789 BN_zero, we may not return a BIGNUM with an array consisting of
5793 *) Avoid calling abort() from within the library when problems are
5794 detected, except if preprocessor symbols have been defined
5795 (such as REF_CHECK, BN_DEBUG etc.).
5798 *) New openssl application 'rsautl'. This utility can be
5799 used for low level RSA operations. DER public key
5800 BIO/fp routines also added.
5803 *) New Configure entry and patches for compiling on QNX 4.
5804 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
5806 *) A demo state-machine implementation was sponsored by
5807 Nuron (http://www.nuron.com/) and is now available in
5808 demos/state_machine.
5811 *) New options added to the 'dgst' utility for signature
5812 generation and verification.
5815 *) Unrecognized PKCS#7 content types are now handled via a
5816 catch all ASN1_TYPE structure. This allows unsupported
5817 types to be stored as a "blob" and an application can
5818 encode and decode it manually.
5821 *) Fix various signed/unsigned issues to make a_strex.c
5823 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
5825 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
5826 length if passed a buffer. ASN1_INTEGER_to_BN failed
5827 if passed a NULL BN and its argument was negative.
5828 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
5830 *) Modification to PKCS#7 encoding routines to output definite
5831 length encoding. Since currently the whole structures are in
5832 memory there's not real point in using indefinite length
5833 constructed encoding. However if OpenSSL is compiled with
5834 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
5837 *) Added BIO_vprintf() and BIO_vsnprintf().
5840 *) Added more prefixes to parse for in the the strings written
5841 through a logging bio, to cover all the levels that are available
5842 through syslog. The prefixes are now:
5844 PANIC, EMERG, EMR => LOG_EMERG
5845 ALERT, ALR => LOG_ALERT
5846 CRIT, CRI => LOG_CRIT
5847 ERROR, ERR => LOG_ERR
5848 WARNING, WARN, WAR => LOG_WARNING
5849 NOTICE, NOTE, NOT => LOG_NOTICE
5850 INFO, INF => LOG_INFO
5851 DEBUG, DBG => LOG_DEBUG
5853 and as before, if none of those prefixes are present at the
5854 beginning of the string, LOG_ERR is chosen.
5856 On Win32, the LOG_* levels are mapped according to this:
5858 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
5859 LOG_WARNING => EVENTLOG_WARNING_TYPE
5860 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
5864 *) Made it possible to reconfigure with just the configuration
5865 argument "reconf" or "reconfigure". The command line arguments
5866 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
5867 and are retrieved from there when reconfiguring.
5871 [Assar Westerlund <assar@sics.se>, Richard Levitte]
5873 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
5876 *) The obj_dat.pl script was messing up the sorting of object
5877 names. The reason was that it compared the quoted version
5878 of strings as a result "OCSP" > "OCSP Signing" because
5879 " > SPACE. Changed script to store unquoted versions of
5880 names and add quotes on output. It was also omitting some
5881 names from the lookup table if they were given a default
5882 value (that is if SN is missing it is given the same
5883 value as LN and vice versa), these are now added on the
5884 grounds that if an object has a name we should be able to
5885 look it up. Finally added warning output when duplicate
5886 short or long names are found.
5889 *) Changes needed for Tandem NSK.
5890 [Scott Uroff <scott@xypro.com>]
5892 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
5893 RSA_padding_check_SSLv23(), special padding was never detected
5894 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
5895 version rollback attacks was not effective.
5897 In s23_clnt.c, don't use special rollback-attack detection padding
5898 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
5899 client; similarly, in s23_srvr.c, don't do the rollback check if
5900 SSL 2.0 is the only protocol enabled in the server.
5903 *) Make it possible to get hexdumps of unprintable data with 'openssl
5904 asn1parse'. By implication, the functions ASN1_parse_dump() and
5905 BIO_dump_indent() are added.
5908 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
5909 these print out strings and name structures based on various
5910 flags including RFC2253 support and proper handling of
5911 multibyte characters. Added options to the 'x509' utility
5912 to allow the various flags to be set.
5915 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
5916 Also change the functions X509_cmp_current_time() and
5917 X509_gmtime_adj() work with an ASN1_TIME structure,
5918 this will enable certificates using GeneralizedTime in validity
5919 dates to be checked.
5922 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
5923 negative public key encodings) on by default,
5924 NO_NEG_PUBKEY_BUG can be set to disable it.
5927 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
5928 content octets. An i2c_ASN1_OBJECT is unnecessary because
5929 the encoding can be trivially obtained from the structure.
5932 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
5933 not read locks (CRYPTO_r_[un]lock).
5936 *) A first attempt at creating official support for shared
5937 libraries through configuration. I've kept it so the
5938 default is static libraries only, and the OpenSSL programs
5939 are always statically linked for now, but there are
5940 preparations for dynamic linking in place.
5941 This has been tested on Linux and Tru64.
5944 *) Randomness polling function for Win9x, as described in:
5945 Peter Gutmann, Software Generation of Practically Strong
5949 *) Fix so PRNG is seeded in req if using an already existing
5953 *) New options to smime application. -inform and -outform
5954 allow alternative formats for the S/MIME message including
5955 PEM and DER. The -content option allows the content to be
5956 specified separately. This should allow things like Netscape
5957 form signing output easier to verify.
5960 *) Fix the ASN1 encoding of tags using the 'long form'.
5963 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
5964 STRING types. These convert content octets to and from the
5965 underlying type. The actual tag and length octets are
5966 already assumed to have been read in and checked. These
5967 are needed because all other string types have virtually
5968 identical handling apart from the tag. By having versions
5969 of the ASN1 functions that just operate on content octets
5970 IMPLICIT tagging can be handled properly. It also allows
5971 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
5972 and ASN1_INTEGER are identical apart from the tag.
5975 *) Change the handling of OID objects as follows:
5977 - New object identifiers are inserted in objects.txt, following
5978 the syntax given in objects.README.
5979 - objects.pl is used to process obj_mac.num and create a new
5981 - obj_dat.pl is used to create a new obj_dat.h, using the data in
5984 This is currently kind of a hack, and the perl code in objects.pl
5985 isn't very elegant, but it works as I intended. The simplest way
5986 to check that it worked correctly is to look in obj_dat.h and
5987 check the array nid_objs and make sure the objects haven't moved
5988 around (this is important!). Additions are OK, as well as
5989 consistent name changes.
5992 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
5995 *) Addition of the command line parameter '-rand file' to 'openssl req'.
5996 The given file adds to whatever has already been seeded into the
5997 random pool through the RANDFILE configuration file option or
5998 environment variable, or the default random state file.
6001 *) mkstack.pl now sorts each macro group into lexical order.
6002 Previously the output order depended on the order the files
6003 appeared in the directory, resulting in needless rewriting
6007 *) Patches to make OpenSSL compile under Win32 again. Mostly
6008 work arounds for the VC++ problem that it treats func() as
6009 func(void). Also stripped out the parts of mkdef.pl that
6010 added extra typesafe functions: these no longer exist.
6013 *) Reorganisation of the stack code. The macros are now all
6014 collected in safestack.h . Each macro is defined in terms of
6015 a "stack macro" of the form SKM_<name>(type, a, b). The
6016 DEBUG_SAFESTACK is now handled in terms of function casts,
6017 this has the advantage of retaining type safety without the
6018 use of additional functions. If DEBUG_SAFESTACK is not defined
6019 then the non typesafe macros are used instead. Also modified the
6020 mkstack.pl script to handle the new form. Needs testing to see
6021 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6022 the default if no major problems. Similar behaviour for ASN1_SET_OF
6023 and PKCS12_STACK_OF.
6026 *) When some versions of IIS use the 'NET' form of private key the
6027 key derivation algorithm is different. Normally MD5(password) is
6028 used as a 128 bit RC4 key. In the modified case
6029 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6030 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6031 as the old Netscape_RSA functions except they have an additional
6032 'sgckey' parameter which uses the modified algorithm. Also added
6033 an -sgckey command line option to the rsa utility. Thanks to
6034 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6035 algorithm to openssl-dev.
6038 *) The evp_local.h macros were using 'c.##kname' which resulted in
6039 invalid expansion on some systems (SCO 5.0.5 for example).
6040 Corrected to 'c.kname'.
6041 [Phillip Porch <root@theporch.com>]
6043 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6044 a STACK of email addresses from a certificate or request, these look
6045 in the subject name and the subject alternative name extensions and
6046 omit any duplicate addresses.
6049 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6050 This makes DSA verification about 2 % faster.
6053 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6054 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6055 plus overhead for 1024 bit moduli).
6056 This makes exponentiations about 0.5 % faster for 1024 bit
6057 exponents (as measured by "openssl speed rsa2048").
6060 *) Rename memory handling macros to avoid conflicts with other
6062 Malloc => OPENSSL_malloc
6063 Malloc_locked => OPENSSL_malloc_locked
6064 Realloc => OPENSSL_realloc
6065 Free => OPENSSL_free
6068 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6069 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6072 *) CygWin32 support.
6073 [John Jarvie <jjarvie@newsguy.com>]
6075 *) The type-safe stack code has been rejigged. It is now only compiled
6076 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6077 by default all type-specific stack functions are "#define"d back to
6078 standard stack functions. This results in more streamlined output
6079 but retains the type-safety checking possibilities of the original
6083 *) The STACK code has been cleaned up, and certain type declarations
6084 that didn't make a lot of sense have been brought in line. This has
6085 also involved a cleanup of sorts in safestack.h to more correctly
6086 map type-safe stack functions onto their plain stack counterparts.
6087 This work has also resulted in a variety of "const"ifications of
6088 lots of the code, especially "_cmp" operations which should normally
6089 be prototyped with "const" parameters anyway.
6092 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6093 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6094 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6095 where all of 'md' is used each time the PRNG is used, but 'state'
6096 is used only indexed by a cyclic counter. As entropy may not be
6097 well distributed from the beginning, 'md' is important as a
6098 chaining variable. However, the output function chains only half
6099 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6100 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6101 in all of 'state' being rewritten, with the new values depending
6102 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6105 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6106 the handshake is continued after ssl_verify_cert_chain();
6107 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6108 can lead to 'unexplainable' connection aborts later.
6109 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6111 *) Major EVP API cipher revision.
6112 Add hooks for extra EVP features. This allows various cipher
6113 parameters to be set in the EVP interface. Support added for variable
6114 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6115 setting of RC2 and RC5 parameters.
6117 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6120 Remove lots of duplicated code from the EVP library. For example *every*
6121 cipher init() function handles the 'iv' in the same way according to the
6122 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6123 for CFB and OFB modes they zero ctx->num.
6125 New functionality allows removal of S/MIME code RC2 hack.
6127 Most of the routines have the same form and so can be declared in terms
6130 By shifting this to the top level EVP_CipherInit() it can be removed from
6131 all individual ciphers. If the cipher wants to handle IVs or keys
6132 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6135 Change lots of functions like EVP_EncryptUpdate() to now return a
6136 value: although software versions of the algorithms cannot fail
6137 any installed hardware versions can.
6140 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6141 this option is set, tolerate broken clients that send the negotiated
6142 protocol version number instead of the requested protocol version
6146 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6147 i.e. non-zero for export ciphersuites, zero otherwise.
6148 Previous versions had this flag inverted, inconsistent with
6149 rsa_tmp_cb (..._TMP_RSA_CB).
6150 [Bodo Moeller; problem reported by Amit Chopra]
6152 *) Add missing DSA library text string. Work around for some IIS
6153 key files with invalid SEQUENCE encoding.
6156 *) Add a document (doc/standards.txt) that list all kinds of standards
6157 and so on that are implemented in OpenSSL.
6160 *) Enhance c_rehash script. Old version would mishandle certificates
6161 with the same subject name hash and wouldn't handle CRLs at all.
6162 Added -fingerprint option to crl utility, to support new c_rehash
6166 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6169 *) Fix for SSL server purpose checking. Server checking was
6170 rejecting certificates which had extended key usage present
6171 but no ssl client purpose.
6172 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6174 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6175 is a little unclear about how a blank password is handled.
6176 Since the password in encoded as a BMPString with terminating
6177 double NULL a zero length password would end up as just the
6178 double NULL. However no password at all is different and is
6179 handled differently in the PKCS#12 key generation code. NS
6180 treats a blank password as zero length. MSIE treats it as no
6181 password on export: but it will try both on import. We now do
6182 the same: PKCS12_parse() tries zero length and no password if
6183 the password is set to "" or NULL (NULL is now a valid password:
6184 it wasn't before) as does the pkcs12 application.
6187 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6188 perror when PEM_read_bio_X509_REQ fails, the error message must
6189 be obtained from the error queue.
6192 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6193 it in ERR_remove_state if appropriate, and change ERR_get_state
6194 accordingly to avoid race conditions (this is necessary because
6195 thread_hash is no longer constant once set).
6198 *) Bugfix for linux-elf makefile.one.
6201 *) RSA_get_default_method() will now cause a default
6202 RSA_METHOD to be chosen if one doesn't exist already.
6203 Previously this was only set during a call to RSA_new()
6204 or RSA_new_method(NULL) meaning it was possible for
6205 RSA_get_default_method() to return NULL.
6208 *) Added native name translation to the existing DSO code
6209 that will convert (if the flag to do so is set) filenames
6210 that are sufficiently small and have no path information
6211 into a canonical native form. Eg. "blah" converted to
6212 "libblah.so" or "blah.dll" etc.
6215 *) New function ERR_error_string_n(e, buf, len) which is like
6216 ERR_error_string(e, buf), but writes at most 'len' bytes
6217 including the 0 terminator. For ERR_error_string_n, 'buf'
6219 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6221 *) CONF library reworked to become more general. A new CONF
6222 configuration file reader "class" is implemented as well as a
6223 new functions (NCONF_*, for "New CONF") to handle it. The now
6224 old CONF_* functions are still there, but are reimplemented to
6225 work in terms of the new functions. Also, a set of functions
6226 to handle the internal storage of the configuration data is
6227 provided to make it easier to write new configuration file
6228 reader "classes" (I can definitely see something reading a
6229 configuration file in XML format, for example), called _CONF_*,
6230 or "the configuration storage API"...
6232 The new configuration file reading functions are:
6234 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6235 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6237 NCONF_default, NCONF_WIN32
6239 NCONF_dump_fp, NCONF_dump_bio
6241 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6242 NCONF_new creates a new CONF object. This works in the same way
6243 as other interfaces in OpenSSL, like the BIO interface.
6244 NCONF_dump_* dump the internal storage of the configuration file,
6245 which is useful for debugging. All other functions take the same
6246 arguments as the old CONF_* functions wth the exception of the
6247 first that must be a `CONF *' instead of a `LHASH *'.
6249 To make it easer to use the new classes with the old CONF_* functions,
6250 the function CONF_set_default_method is provided.
6253 *) Add '-tls1' option to 'openssl ciphers', which was already
6254 mentioned in the documentation but had not been implemented.
6255 (This option is not yet really useful because even the additional
6256 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
6259 *) Initial DSO code added into libcrypto for letting OpenSSL (and
6260 OpenSSL-based applications) load shared libraries and bind to
6261 them in a portable way.
6262 [Geoff Thorpe, with contributions from Richard Levitte]
6264 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
6266 *) Make sure _lrotl and _lrotr are only used with MSVC.
6268 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
6269 (the default implementation of RAND_status).
6271 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
6272 to '-clrext' (= clear extensions), as intended and documented.
6273 [Bodo Moeller; inconsistency pointed out by Michael Attili
6276 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
6277 was larger than the MD block size.
6278 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
6280 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
6281 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
6282 using the passed key: if the passed key was a private key the result
6283 of X509_print(), for example, would be to print out all the private key
6287 *) des_quad_cksum() byte order bug fix.
6288 [Ulf Möller, using the problem description in krb4-0.9.7, where
6289 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
6291 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
6293 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
6295 *) For easily testing in shell scripts whether some command
6296 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
6297 returns with exit code 0 iff no command of the given name is available.
6298 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
6299 the output goes to stdout and nothing is printed to stderr.
6300 Additional arguments are always ignored.
6302 Since for each cipher there is a command of the same name,
6303 the 'no-cipher' compilation switches can be tested this way.
6305 ('openssl no-XXX' is not able to detect pseudo-commands such
6306 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
6309 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
6312 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
6313 is set; it will be thrown away anyway because each handshake creates
6315 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
6316 to parameters -- in previous versions (since OpenSSL 0.9.3) the
6317 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
6318 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
6321 *) New s_client option -ign_eof: EOF at stdin is ignored, and
6322 'Q' and 'R' lose their special meanings (quit/renegotiate).
6323 This is part of what -quiet does; unlike -quiet, -ign_eof
6324 does not suppress any output.
6327 *) Add compatibility options to the purpose and trust code. The
6328 purpose X509_PURPOSE_ANY is "any purpose" which automatically
6329 accepts a certificate or CA, this was the previous behaviour,
6330 with all the associated security issues.
6332 X509_TRUST_COMPAT is the old trust behaviour: only and
6333 automatically trust self signed roots in certificate store. A
6334 new trust setting X509_TRUST_DEFAULT is used to specify that
6335 a purpose has no associated trust setting and it should instead
6336 use the value in the default purpose.
6339 *) Fix the PKCS#8 DSA private key code so it decodes keys again
6340 and fix a memory leak.
6343 *) In util/mkerr.pl (which implements 'make errors'), preserve
6344 reason strings from the previous version of the .c file, as
6345 the default to have only downcase letters (and digits) in
6346 automatically generated reasons codes is not always appropriate.
6349 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
6350 using strerror. Previously, ERR_reason_error_string() returned
6351 library names as reason strings for SYSerr; but SYSerr is a special
6352 case where small numbers are errno values, not library numbers.
6355 *) Add '-dsaparam' option to 'openssl dhparam' application. This
6356 converts DSA parameters into DH parameters. (When creating parameters,
6357 DSA_generate_parameters is used.)
6360 *) Include 'length' (recommended exponent length) in C code generated
6361 by 'openssl dhparam -C'.
6364 *) The second argument to set_label in perlasm was already being used
6365 so couldn't be used as a "file scope" flag. Moved to third argument
6369 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
6370 instead of RAND_bytes for encryption IVs and salts.
6373 *) Include RAND_status() into RAND_METHOD instead of implementing
6374 it only for md_rand.c Otherwise replacing the PRNG by calling
6375 RAND_set_rand_method would be impossible.
6378 *) Don't let DSA_generate_key() enter an infinite loop if the random
6379 number generation fails.
6382 *) New 'rand' application for creating pseudo-random output.
6385 *) Added configuration support for Linux/IA64
6386 [Rolf Haberrecker <rolf@suse.de>]
6388 *) Assembler module support for Mingw32.
6391 *) Shared library support for HPUX (in shlib/).
6392 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
6394 *) Shared library support for Solaris gcc.
6395 [Lutz Behnke <behnke@trustcenter.de>]
6397 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
6399 *) PKCS7_encrypt() was adding text MIME headers twice because they
6400 were added manually and by SMIME_crlf_copy().
6403 *) In bntest.c don't call BN_rand with zero bits argument.
6404 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
6406 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
6407 case was implemented. This caused BN_div_recp() to fail occasionally.
6410 *) Add an optional second argument to the set_label() in the perl
6411 assembly language builder. If this argument exists and is set
6412 to 1 it signals that the assembler should use a symbol whose
6413 scope is the entire file, not just the current function. This
6414 is needed with MASM which uses the format label:: for this scope.
6415 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
6417 *) Change the ASN1 types so they are typedefs by default. Before
6418 almost all types were #define'd to ASN1_STRING which was causing
6419 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
6423 *) Change names of new functions to the new get1/get0 naming
6424 convention: After 'get1', the caller owns a reference count
6425 and has to call ..._free; 'get0' returns a pointer to some
6426 data structure without incrementing reference counters.
6427 (Some of the existing 'get' functions increment a reference
6428 counter, some don't.)
6429 Similarly, 'set1' and 'add1' functions increase reference
6430 counters or duplicate objects.
6433 *) Allow for the possibility of temp RSA key generation failure:
6434 the code used to assume it always worked and crashed on failure.
6437 *) Fix potential buffer overrun problem in BIO_printf().
6438 [Ulf Möller, using public domain code by Patrick Powell; problem
6439 pointed out by David Sacerdote <das33@cornell.edu>]
6441 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
6442 RAND_egd() and RAND_status(). In the command line application,
6443 the EGD socket can be specified like a seed file using RANDFILE
6447 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
6448 Some CAs (e.g. Verisign) distribute certificates in this form.
6451 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
6452 list to exclude them. This means that no special compilation option
6453 is needed to use anonymous DH: it just needs to be included in the
6457 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
6458 EVP_MD_type. The old functionality is available in a new macro called
6459 EVP_MD_md(). Change code that uses it and update docs.
6462 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
6463 where the 'void *' argument is replaced by a function pointer argument.
6464 Previously 'void *' was abused to point to functions, which works on
6465 many platforms, but is not correct. As these functions are usually
6466 called by macros defined in OpenSSL header files, most source code
6467 should work without changes.
6470 *) <openssl/opensslconf.h> (which is created by Configure) now contains
6471 sections with information on -D... compiler switches used for
6472 compiling the library so that applications can see them. To enable
6473 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
6474 must be defined. E.g.,
6475 #define OPENSSL_ALGORITHM_DEFINES
6476 #include <openssl/opensslconf.h>
6477 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
6478 [Richard Levitte, Ulf and Bodo Möller]
6480 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
6484 *) Change the 'other' type in certificate aux info to a STACK_OF
6485 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
6486 the required ASN1 format: arbitrary types determined by an OID.
6489 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
6490 argument to 'req'. This is not because the function is newer or
6491 better than others it just uses the work 'NEW' in the certificate
6492 request header lines. Some software needs this.
6495 *) Reorganise password command line arguments: now passwords can be
6496 obtained from various sources. Delete the PEM_cb function and make
6497 it the default behaviour: i.e. if the callback is NULL and the
6498 usrdata argument is not NULL interpret it as a null terminated pass
6499 phrase. If usrdata and the callback are NULL then the pass phrase
6500 is prompted for as usual.
6503 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
6504 the support is automatically enabled. The resulting binaries will
6505 autodetect the card and use it if present.
6506 [Ben Laurie and Compaq Inc.]
6508 *) Work around for Netscape hang bug. This sends certificate request
6509 and server done in one record. Since this is perfectly legal in the
6510 SSL/TLS protocol it isn't a "bug" option and is on by default. See
6511 the bugs/SSLv3 entry for more info.
6514 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
6517 *) Add -rand argument to smime and pkcs12 applications and read/write
6521 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
6524 *) Add command line password options to the remaining applications.
6527 *) Bug fix for BN_div_recp() for numerators with an even number of
6531 *) More tests in bntest.c, and changed test_bn output.
6534 *) ./config recognizes MacOS X now.
6537 *) Bug fix for BN_div() when the first words of num and divsor are
6538 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
6541 *) Add support for various broken PKCS#8 formats, and command line
6542 options to produce them.
6545 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
6546 get temporary BIGNUMs from a BN_CTX.
6549 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
6553 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
6554 include a #define from the old name to the new. The original intent
6555 was that statically linked binaries could for example just call
6556 SSLeay_add_all_ciphers() to just add ciphers to the table and not
6557 link with digests. This never worked becayse SSLeay_add_all_digests()
6558 and SSLeay_add_all_ciphers() were in the same source file so calling
6559 one would link with the other. They are now in separate source files.
6562 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
6565 *) Use a less unusual form of the Miller-Rabin primality test (it used
6566 a binary algorithm for exponentiation integrated into the Miller-Rabin
6567 loop, our standard modexp algorithms are faster).
6570 *) Support for the EBCDIC character set completed.
6571 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
6573 *) Source code cleanups: use const where appropriate, eliminate casts,
6574 use void * instead of char * in lhash.
6577 *) Bugfix: ssl3_send_server_key_exchange was not restartable
6578 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
6579 this the server could overwrite ephemeral keys that the client
6583 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
6584 using 50 iterations of the Rabin-Miller test.
6586 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
6587 iterations of the Rabin-Miller test as required by the appendix
6588 to FIPS PUB 186[-1]) instead of DSA_is_prime.
6589 As BN_is_prime_fasttest includes trial division, DSA parameter
6590 generation becomes much faster.
6592 This implies a change for the callback functions in DSA_is_prime
6593 and DSA_generate_parameters: The callback function is called once
6594 for each positive witness in the Rabin-Miller test, not just
6595 occasionally in the inner loop; and the parameters to the
6596 callback function now provide an iteration count for the outer
6597 loop rather than for the current invocation of the inner loop.
6598 DSA_generate_parameters additionally can call the callback
6599 function with an 'iteration count' of -1, meaning that a
6600 candidate has passed the trial division test (when q is generated
6601 from an application-provided seed, trial division is skipped).
6604 *) New function BN_is_prime_fasttest that optionally does trial
6605 division before starting the Rabin-Miller test and has
6606 an additional BN_CTX * argument (whereas BN_is_prime always
6607 has to allocate at least one BN_CTX).
6608 'callback(1, -1, cb_arg)' is called when a number has passed the
6609 trial division stage.
6612 *) Fix for bug in CRL encoding. The validity dates weren't being handled
6616 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
6619 *) New function BN_pseudo_rand().
6622 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
6623 bignum version of BN_from_montgomery() with the working code from
6624 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
6628 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
6629 made it impossible to use the same SSL_SESSION data structure in
6630 SSL2 clients in multiple threads.
6633 *) The return value of RAND_load_file() no longer counts bytes obtained
6634 by stat(). RAND_load_file(..., -1) is new and uses the complete file
6635 to seed the PRNG (previously an explicit byte count was required).
6636 [Ulf Möller, Bodo Möller]
6638 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
6639 used (char *) instead of (void *) and had casts all over the place.
6642 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
6645 *) Retain source code compatibility for BN_prime_checks macro:
6646 BN_is_prime(..., BN_prime_checks, ...) now uses
6647 BN_prime_checks_for_size to determine the appropriate number of
6648 Rabin-Miller iterations.
6651 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
6652 DH_CHECK_P_NOT_SAFE_PRIME.
6653 (Check if this is true? OpenPGP calls them "strong".)
6656 *) Merge the functionality of "dh" and "gendh" programs into a new program
6657 "dhparam". The old programs are retained for now but will handle DH keys
6658 (instead of parameters) in future.
6661 *) Make the ciphers, s_server and s_client programs check the return values
6662 when a new cipher list is set.
6665 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
6666 ciphers. Before when the 56bit ciphers were enabled the sorting was
6669 The syntax for the cipher sorting has been extended to support sorting by
6670 cipher-strength (using the strength_bits hard coded in the tables).
6671 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
6673 Fix a bug in the cipher-command parser: when supplying a cipher command
6674 string with an "undefined" symbol (neither command nor alphanumeric
6675 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
6676 an error is flagged.
6678 Due to the strength-sorting extension, the code of the
6679 ssl_create_cipher_list() function was completely rearranged. I hope that
6680 the readability was also increased :-)
6681 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6683 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
6684 for the first serial number and places 2 in the serial number file. This
6685 avoids problems when the root CA is created with serial number zero and
6686 the first user certificate has the same issuer name and serial number
6690 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
6691 the new code. Add documentation for this stuff.
6694 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
6695 X509_*() to X509at_*() on the grounds that they don't handle X509
6696 structures and behave in an analagous way to the X509v3 functions:
6697 they shouldn't be called directly but wrapper functions should be used
6700 So we also now have some wrapper functions that call the X509at functions
6701 when passed certificate requests. (TO DO: similar things can be done with
6702 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
6703 things. Some of these need some d2i or i2d and print functionality
6704 because they handle more complex structures.)
6707 *) Add missing #ifndefs that caused missing symbols when building libssl
6708 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
6709 NO_RSA in ssl/s2*.c.
6710 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
6712 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
6713 has a return value which indicates the quality of the random data
6714 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
6715 error queue. New function RAND_pseudo_bytes() generates output that is
6716 guaranteed to be unique but not unpredictable. RAND_add is like
6717 RAND_seed, but takes an extra argument for an entropy estimate
6718 (RAND_seed always assumes full entropy).
6721 *) Do more iterations of Rabin-Miller probable prime test (specifically,
6722 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
6723 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
6724 in crypto/bn/bn_prime.c for the complete table). This guarantees a
6725 false-positive rate of at most 2^-80 for random input.
6728 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
6731 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
6732 in the 0.9.5 release), this returns the chain
6733 from an X509_CTX structure with a dup of the stack and all
6734 the X509 reference counts upped: so the stack will exist
6735 after X509_CTX_cleanup() has been called. Modify pkcs12.c
6738 Also make SSL_SESSION_print() print out the verify return
6742 *) Add manpage for the pkcs12 command. Also change the default
6743 behaviour so MAC iteration counts are used unless the new
6744 -nomaciter option is used. This improves file security and
6745 only older versions of MSIE (4.0 for example) need it.
6748 *) Honor the no-xxx Configure options when creating .DEF files.
6751 *) Add PKCS#10 attributes to field table: challengePassword,
6752 unstructuredName and unstructuredAddress. These are taken from
6753 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
6754 international characters are used.
6756 More changes to X509_ATTRIBUTE code: allow the setting of types
6757 based on strings. Remove the 'loc' parameter when adding
6758 attributes because these will be a SET OF encoding which is sorted
6762 *) Initial changes to the 'req' utility to allow request generation
6763 automation. This will allow an application to just generate a template
6764 file containing all the field values and have req construct the
6767 Initial support for X509_ATTRIBUTE handling. Stacks of these are
6768 used all over the place including certificate requests and PKCS#7
6769 structures. They are currently handled manually where necessary with
6770 some primitive wrappers for PKCS#7. The new functions behave in a
6771 manner analogous to the X509 extension functions: they allow
6772 attributes to be looked up by NID and added.
6774 Later something similar to the X509V3 code would be desirable to
6775 automatically handle the encoding, decoding and printing of the
6776 more complex types. The string types like challengePassword can
6777 be handled by the string table functions.
6779 Also modified the multi byte string table handling. Now there is
6780 a 'global mask' which masks out certain types. The table itself
6781 can use the flag STABLE_NO_MASK to ignore the mask setting: this
6782 is useful when for example there is only one permissible type
6783 (as in countryName) and using the mask might result in no valid
6787 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
6788 SSL_get_peer_finished to allow applications to obtain the latest
6789 Finished messages sent to the peer or expected from the peer,
6790 respectively. (SSL_get_peer_finished is usually the Finished message
6791 actually received from the peer, otherwise the protocol will be aborted.)
6793 As the Finished message are message digests of the complete handshake
6794 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
6795 be used for external authentication procedures when the authentication
6796 provided by SSL/TLS is not desired or is not enough.
6799 *) Enhanced support for Alpha Linux is added. Now ./config checks if
6800 the host supports BWX extension and if Compaq C is present on the
6801 $PATH. Just exploiting of the BWX extension results in 20-30%
6802 performance kick for some algorithms, e.g. DES and RC4 to mention
6803 a couple. Compaq C in turn generates ~20% faster code for MD5 and
6807 *) Add support for MS "fast SGC". This is arguably a violation of the
6808 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
6809 weak crypto and after checking the certificate is SGC a second one
6810 with strong crypto. MS SGC stops the first handshake after receiving
6811 the server certificate message and sends a second client hello. Since
6812 a server will typically do all the time consuming operations before
6813 expecting any further messages from the client (server key exchange
6814 is the most expensive) there is little difference between the two.
6816 To get OpenSSL to support MS SGC we have to permit a second client
6817 hello message after we have sent server done. In addition we have to
6818 reset the MAC if we do get this second client hello.
6821 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
6822 if a DER encoded private key is RSA or DSA traditional format. Changed
6823 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
6824 format DER encoded private key. Newer code should use PKCS#8 format which
6825 has the key type encoded in the ASN1 structure. Added DER private key
6826 support to pkcs8 application.
6829 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
6830 ciphersuites has been selected (as required by the SSL 3/TLS 1
6831 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
6832 is set, we interpret this as a request to violate the specification
6833 (the worst that can happen is a handshake failure, and 'correct'
6834 behaviour would result in a handshake failure anyway).
6837 *) In SSL_CTX_add_session, take into account that there might be multiple
6838 SSL_SESSION structures with the same session ID (e.g. when two threads
6839 concurrently obtain them from an external cache).
6840 The internal cache can handle only one SSL_SESSION with a given ID,
6841 so if there's a conflict, we now throw out the old one to achieve
6845 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
6846 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
6847 some routines that use cipher OIDs: some ciphers do not have OIDs
6848 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
6852 *) Simplify the trust setting structure and code. Now we just have
6853 two sequences of OIDs for trusted and rejected settings. These will
6854 typically have values the same as the extended key usage extension
6855 and any application specific purposes.
6857 The trust checking code now has a default behaviour: it will just
6858 check for an object with the same NID as the passed id. Functions can
6859 be provided to override either the default behaviour or the behaviour
6860 for a given id. SSL client, server and email already have functions
6861 in place for compatibility: they check the NID and also return "trusted"
6862 if the certificate is self signed.
6865 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
6866 traditional format into an EVP_PKEY structure.
6869 *) Add a password callback function PEM_cb() which either prompts for
6870 a password if usr_data is NULL or otherwise assumes it is a null
6871 terminated password. Allow passwords to be passed on command line
6872 environment or config files in a few more utilities.
6875 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
6876 keys. Add some short names for PKCS#8 PBE algorithms and allow them
6877 to be specified on the command line for the pkcs8 and pkcs12 utilities.
6878 Update documentation.
6881 *) Support for ASN1 "NULL" type. This could be handled before by using
6882 ASN1_TYPE but there wasn't any function that would try to read a NULL
6883 and produce an error if it couldn't. For compatibility we also have
6884 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
6885 don't allocate anything because they don't need to.
6888 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
6890 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
6892 *) Rebuild of the memory allocation routines used by OpenSSL code and
6893 possibly others as well. The purpose is to make an interface that
6894 provide hooks so anyone can build a separate set of allocation and
6895 deallocation routines to be used by OpenSSL, for example memory
6896 pool implementations, or something else, which was previously hard
6897 since Malloc(), Realloc() and Free() were defined as macros having
6898 the values malloc, realloc and free, respectively (except for Win32
6899 compilations). The same is provided for memory debugging code.
6900 OpenSSL already comes with functionality to find memory leaks, but
6901 this gives people a chance to debug other memory problems.
6903 With these changes, a new set of functions and macros have appeared:
6905 CRYPTO_set_mem_debug_functions() [F]
6906 CRYPTO_get_mem_debug_functions() [F]
6907 CRYPTO_dbg_set_options() [F]
6908 CRYPTO_dbg_get_options() [F]
6909 CRYPTO_malloc_debug_init() [M]
6911 The memory debug functions are NULL by default, unless the library
6912 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
6913 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
6914 gives the standard debugging functions that come with OpenSSL) or
6915 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
6916 provided by the library user) must be used. When the standard
6917 debugging functions are used, CRYPTO_dbg_set_options can be used to
6918 request additional information:
6919 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
6920 the CRYPTO_MDEBUG_xxx macro when compiling the library.
6922 Also, things like CRYPTO_set_mem_functions will always give the
6923 expected result (the new set of functions is used for allocation
6924 and deallocation) at all times, regardless of platform and compiler
6927 To finish it up, some functions that were never use in any other
6928 way than through macros have a new API and new semantic:
6931 CRYPTO_dbg_realloc()
6934 All macros of value have retained their old syntax.
6935 [Richard Levitte and Bodo Moeller]
6937 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
6938 ordering of SMIMECapabilities wasn't in "strength order" and there
6939 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
6943 *) Some ASN1 types with illegal zero length encoding (INTEGER,
6944 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
6945 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
6947 *) Merge in my S/MIME library for OpenSSL. This provides a simple
6948 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
6949 functionality to handle multipart/signed properly) and a utility
6950 called 'smime' to call all this stuff. This is based on code I
6951 originally wrote for Celo who have kindly allowed it to be
6952 included in OpenSSL.
6955 *) Add variants des_set_key_checked and des_set_key_unchecked of
6956 des_set_key (aka des_key_sched). Global variable des_check_key
6957 decides which of these is called by des_set_key; this way
6958 des_check_key behaves as it always did, but applications and
6959 the library itself, which was buggy for des_check_key == 1,
6960 have a cleaner way to pick the version they need.
6963 *) New function PKCS12_newpass() which changes the password of a
6967 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
6968 dynamic mix. In both cases the ids can be used as an index into the
6969 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
6970 functions so they accept a list of the field values and the
6971 application doesn't need to directly manipulate the X509_TRUST
6975 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
6979 *) Modify the way the V3 extension code looks up extensions. This now
6980 works in a similar way to the object code: we have some "standard"
6981 extensions in a static table which is searched with OBJ_bsearch()
6982 and the application can add dynamic ones if needed. The file
6983 crypto/x509v3/ext_dat.h now has the info: this file needs to be
6984 updated whenever a new extension is added to the core code and kept
6985 in ext_nid order. There is a simple program 'tabtest.c' which checks
6986 this. New extensions are not added too often so this file can readily
6987 be maintained manually.
6989 There are two big advantages in doing things this way. The extensions
6990 can be looked up immediately and no longer need to be "added" using
6991 X509V3_add_standard_extensions(): this function now does nothing.
6992 [Side note: I get *lots* of email saying the extension code doesn't
6993 work because people forget to call this function]
6994 Also no dynamic allocation is done unless new extensions are added:
6995 so if we don't add custom extensions there is no need to call
6996 X509V3_EXT_cleanup().
6999 *) Modify enc utility's salting as follows: make salting the default. Add a
7000 magic header, so unsalted files fail gracefully instead of just decrypting
7001 to garbage. This is because not salting is a big security hole, so people
7002 should be discouraged from doing it.
7005 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7006 digest to be passed on the command line but it only used this
7007 parameter when signing a certificate. Modified so all relevant
7008 operations are affected by the digest parameter including the
7009 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7010 DSA key was used because it didn't fix the digest.
7013 *) Initial certificate chain verify code. Currently tests the untrusted
7014 certificates for consistency with the verify purpose (which is set
7015 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7017 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7018 this is because it will reject chains with invalid extensions whereas
7019 every previous version of OpenSSL and SSLeay made no checks at all.
7021 Trust code: checks the root CA for the relevant trust settings. Trust
7022 settings have an initial value consistent with the verify purpose: e.g.
7023 if the verify purpose is for SSL client use it expects the CA to be
7024 trusted for SSL client use. However the default value can be changed to
7025 permit custom trust settings: one example of this would be to only trust
7026 certificates from a specific "secure" set of CAs.
7028 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7029 which should be used for version portability: especially since the
7030 verify structure is likely to change more often now.
7032 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7033 to set them. If not set then assume SSL clients will verify SSL servers
7036 Two new options to the verify program: -untrusted allows a set of
7037 untrusted certificates to be passed in and -purpose which sets the
7038 intended purpose of the certificate. If a purpose is set then the
7039 new chain verify code is used to check extension consistency.
7042 *) Support for the authority information access extension.
7045 *) Modify RSA and DSA PEM read routines to transparently handle
7046 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7047 public keys in a format compatible with certificate
7048 SubjectPublicKeyInfo structures. Unfortunately there were already
7049 functions called *_PublicKey_* which used various odd formats so
7050 these are retained for compatibility: however the DSA variants were
7051 never in a public release so they have been deleted. Changed dsa/rsa
7052 utilities to handle the new format: note no releases ever handled public
7053 keys so we should be OK.
7055 The primary motivation for this change is to avoid the same fiasco
7056 that dogs private keys: there are several incompatible private key
7057 formats some of which are standard and some OpenSSL specific and
7058 require various evil hacks to allow partial transparent handling and
7059 even then it doesn't work with DER formats. Given the option anything
7060 other than PKCS#8 should be dumped: but the other formats have to
7061 stay in the name of compatibility.
7063 With public keys and the benefit of hindsight one standard format
7064 is used which works with EVP_PKEY, RSA or DSA structures: though
7065 it clearly returns an error if you try to read the wrong kind of key.
7067 Added a -pubkey option to the 'x509' utility to output the public key.
7068 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7069 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7070 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7071 that do the same as the EVP_PKEY_assign_*() except they up the
7072 reference count of the added key (they don't "swallow" the
7076 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7077 CRLs would fail if the file contained no certificates or no CRLs:
7078 added a new function to read in both types and return the number
7079 read: this means that if none are read it will be an error. The
7080 DER versions of the certificate and CRL reader would always fail
7081 because it isn't possible to mix certificates and CRLs in DER format
7082 without choking one or the other routine. Changed this to just read
7083 a certificate: this is the best we can do. Also modified the code
7084 in apps/verify.c to take notice of return codes: it was previously
7085 attempting to read in certificates from NULL pointers and ignoring
7086 any errors: this is one reason why the cert and CRL reader seemed
7087 to work. It doesn't check return codes from the default certificate
7088 routines: these may well fail if the certificates aren't installed.
7091 *) Code to support otherName option in GeneralName.
7094 *) First update to verify code. Change the verify utility
7095 so it warns if it is passed a self signed certificate:
7096 for consistency with the normal behaviour. X509_verify
7097 has been modified to it will now verify a self signed
7098 certificate if *exactly* the same certificate appears
7099 in the store: it was previously impossible to trust a
7100 single self signed certificate. This means that:
7101 openssl verify ss.pem
7102 now gives a warning about a self signed certificate but
7103 openssl verify -CAfile ss.pem ss.pem
7107 *) For servers, store verify_result in SSL_SESSION data structure
7108 (and add it to external session representation).
7109 This is needed when client certificate verifications fails,
7110 but an application-provided verification callback (set by
7111 SSL_CTX_set_cert_verify_callback) allows accepting the session
7112 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7113 but returns 1): When the session is reused, we have to set
7114 ssl->verify_result to the appropriate error code to avoid
7116 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7118 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7119 case in PKCS7_dataInit() where the signed PKCS7 structure
7120 didn't contain any existing data because it was being created.
7121 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7123 *) Add a salt to the key derivation routines in enc.c. This
7124 forms the first 8 bytes of the encrypted file. Also add a
7125 -S option to allow a salt to be input on the command line.
7128 *) New function X509_cmp(). Oddly enough there wasn't a function
7129 to compare two certificates. We do this by working out the SHA1
7130 hash and comparing that. X509_cmp() will be needed by the trust
7134 *) SSL_get1_session() is like SSL_get_session(), but increments
7135 the reference count in the SSL_SESSION returned.
7136 [Geoff Thorpe <geoff@eu.c2.net>]
7138 *) Fix for 'req': it was adding a null to request attributes.
7139 Also change the X509_LOOKUP and X509_INFO code to handle
7140 certificate auxiliary information.
7143 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7147 *) Add the possibility to add extra information to the memory leak
7148 detecting output, to form tracebacks, showing from where each
7149 allocation was originated: CRYPTO_push_info("constant string") adds
7150 the string plus current file name and line number to a per-thread
7151 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7152 is like calling CYRPTO_pop_info() until the stack is empty.
7153 Also updated memory leak detection code to be multi-thread-safe.
7156 *) Add options -text and -noout to pkcs7 utility and delete the
7157 encryption options which never did anything. Update docs.
7160 *) Add options to some of the utilities to allow the pass phrase
7161 to be included on either the command line (not recommended on
7162 OSes like Unix) or read from the environment. Update the
7163 manpages and fix a few bugs.
7166 *) Add a few manpages for some of the openssl commands.
7169 *) Fix the -revoke option in ca. It was freeing up memory twice,
7170 leaking and not finding already revoked certificates.
7173 *) Extensive changes to support certificate auxiliary information.
7174 This involves the use of X509_CERT_AUX structure and X509_AUX
7175 functions. An X509_AUX function such as PEM_read_X509_AUX()
7176 can still read in a certificate file in the usual way but it
7177 will also read in any additional "auxiliary information". By
7178 doing things this way a fair degree of compatibility can be
7179 retained: existing certificates can have this information added
7180 using the new 'x509' options.
7182 Current auxiliary information includes an "alias" and some trust
7183 settings. The trust settings will ultimately be used in enhanced
7184 certificate chain verification routines: currently a certificate
7185 can only be trusted if it is self signed and then it is trusted
7189 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7190 The problem was that one of the replacement routines had not been working
7191 since SSLeay releases. For now the offending routine has been replaced
7192 with non-optimised assembler. Even so, this now gives around 95%
7193 performance improvement for 1024 bit RSA signs.
7196 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7197 handling. Most clients have the effective key size in bits equal to
7198 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7199 A few however don't do this and instead use the size of the decrypted key
7200 to determine the RC2 key length and the AlgorithmIdentifier to determine
7201 the effective key length. In this case the effective key length can still
7202 be 40 bits but the key length can be 168 bits for example. This is fixed
7203 by manually forcing an RC2 key into the EVP_PKEY structure because the
7204 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7205 the key length and effective key length are equal.
7208 *) Add a bunch of functions that should simplify the creation of
7209 X509_NAME structures. Now you should be able to do:
7210 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7211 and have it automatically work out the correct field type and fill in
7212 the structures. The more adventurous can try:
7213 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7214 and it will (hopefully) work out the correct multibyte encoding.
7217 *) Change the 'req' utility to use the new field handling and multibyte
7218 copy routines. Before the DN field creation was handled in an ad hoc
7219 way in req, ca, and x509 which was rather broken and didn't support
7220 BMPStrings or UTF8Strings. Since some software doesn't implement
7221 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7222 using the dirstring_type option. See the new comment in the default
7223 openssl.cnf for more info.
7226 *) Make crypto/rand/md_rand.c more robust:
7227 - Assure unique random numbers after fork().
7228 - Make sure that concurrent threads access the global counter and
7229 md serializably so that we never lose entropy in them
7230 or use exactly the same state in multiple threads.
7231 Access to the large state is not always serializable because
7232 the additional locking could be a performance killer, and
7233 md should be large enough anyway.
7236 *) New file apps/app_rand.c with commonly needed functionality
7237 for handling the random seed file.
7239 Use the random seed file in some applications that previously did not:
7241 dsaparam -genkey (which also ignored its '-rand' option),
7244 x509 (when signing).
7245 Except on systems with /dev/urandom, it is crucial to have a random
7246 seed file at least for key creation, DSA signing, and for DH exchanges;
7247 for RSA signatures we could do without one.
7249 gendh and gendsa (unlike genrsa) used to read only the first byte
7250 of each file listed in the '-rand' option. The function as previously
7251 found in genrsa is now in app_rand.c and is used by all programs
7252 that support '-rand'.
7255 *) In RAND_write_file, use mode 0600 for creating files;
7256 don't just chmod when it may be too late.
7259 *) Report an error from X509_STORE_load_locations
7260 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
7263 *) New function ASN1_mbstring_copy() this copies a string in either
7264 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
7265 into an ASN1_STRING type. A mask of permissible types is passed
7266 and it chooses the "minimal" type to use or an error if not type
7270 *) Add function equivalents to the various macros in asn1.h. The old
7271 macros are retained with an M_ prefix. Code inside the library can
7272 use the M_ macros. External code (including the openssl utility)
7273 should *NOT* in order to be "shared library friendly".
7276 *) Add various functions that can check a certificate's extensions
7277 to see if it usable for various purposes such as SSL client,
7278 server or S/MIME and CAs of these types. This is currently
7279 VERY EXPERIMENTAL but will ultimately be used for certificate chain
7280 verification. Also added a -purpose flag to x509 utility to
7281 print out all the purposes.
7284 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
7288 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
7289 for, obtain and decode and extension and obtain its critical flag.
7290 This allows all the necessary extension code to be handled in a
7291 single function call.
7294 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
7295 platforms. See crypto/rc4/rc4_enc.c for further details.
7298 *) New -noout option to asn1parse. This causes no output to be produced
7299 its main use is when combined with -strparse and -out to extract data
7300 from a file (which may not be in ASN.1 format).
7303 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
7304 when producing the local key id.
7305 [Richard Levitte <levitte@stacken.kth.se>]
7307 *) New option -dhparam in s_server. This allows a DH parameter file to be
7308 stated explicitly. If it is not stated then it tries the first server
7309 certificate file. The previous behaviour hard coded the filename
7313 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
7314 a public key to be input or output. For example:
7315 openssl rsa -in key.pem -pubout -out pubkey.pem
7316 Also added necessary DSA public key functions to handle this.
7319 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
7320 in the message. This was handled by allowing
7321 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
7322 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
7324 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
7325 to the end of the strings whereas this didn't. This would cause problems
7326 if strings read with d2i_ASN1_bytes() were later modified.
7327 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
7329 *) Fix for base64 decode bug. When a base64 bio reads only one line of
7330 data and it contains EOF it will end up returning an error. This is
7331 caused by input 46 bytes long. The cause is due to the way base64
7332 BIOs find the start of base64 encoded data. They do this by trying a
7333 trial decode on each line until they find one that works. When they
7334 do a flag is set and it starts again knowing it can pass all the
7335 data directly through the decoder. Unfortunately it doesn't reset
7336 the context it uses. This means that if EOF is reached an attempt
7337 is made to pass two EOFs through the context and this causes the
7338 resulting error. This can also cause other problems as well. As is
7339 usual with these problems it takes *ages* to find and the fix is
7340 trivial: move one line.
7341 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
7343 *) Ugly workaround to get s_client and s_server working under Windows. The
7344 old code wouldn't work because it needed to select() on sockets and the
7345 tty (for keypresses and to see if data could be written). Win32 only
7346 supports select() on sockets so we select() with a 1s timeout on the
7347 sockets and then see if any characters are waiting to be read, if none
7348 are present then we retry, we also assume we can always write data to
7349 the tty. This isn't nice because the code then blocks until we've
7350 received a complete line of data and it is effectively polling the
7351 keyboard at 1s intervals: however it's quite a bit better than not
7352 working at all :-) A dedicated Windows application might handle this
7353 with an event loop for example.
7356 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
7357 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
7358 will be called when RSA_sign() and RSA_verify() are used. This is useful
7359 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
7360 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
7361 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
7362 This necessitated the support of an extra signature type NID_md5_sha1
7363 for SSL signatures and modifications to the SSL library to use it instead
7364 of calling RSA_public_decrypt() and RSA_private_encrypt().
7367 *) Add new -verify -CAfile and -CApath options to the crl program, these
7368 will lookup a CRL issuers certificate and verify the signature in a
7369 similar way to the verify program. Tidy up the crl program so it
7370 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
7371 less strict. It will now permit CRL extensions even if it is not
7372 a V2 CRL: this will allow it to tolerate some broken CRLs.
7375 *) Initialize all non-automatic variables each time one of the openssl
7376 sub-programs is started (this is necessary as they may be started
7377 multiple times from the "OpenSSL>" prompt).
7378 [Lennart Bang, Bodo Moeller]
7380 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
7381 removing all other RSA functionality (this is what NO_RSA does). This
7382 is so (for example) those in the US can disable those operations covered
7383 by the RSA patent while allowing storage and parsing of RSA keys and RSA
7387 *) Non-copying interface to BIO pairs.
7388 (still largely untested)
7391 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
7392 ASCII string. This was handled independently in various places before.
7395 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
7396 UTF8 strings a character at a time.
7399 *) Use client_version from client hello to select the protocol
7400 (s23_srvr.c) and for RSA client key exchange verification
7401 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
7404 *) Add various utility functions to handle SPKACs, these were previously
7405 handled by poking round in the structure internals. Added new function
7406 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
7407 print, verify and generate SPKACs. Based on an original idea from
7408 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
7411 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
7414 *) Allow the config file extension section to be overwritten on the
7415 command line. Based on an original idea from Massimiliano Pala
7416 <madwolf@comune.modena.it>. The new option is called -extensions
7417 and can be applied to ca, req and x509. Also -reqexts to override
7418 the request extensions in req and -crlexts to override the crl extensions
7422 *) Add new feature to the SPKAC handling in ca. Now you can include
7423 the same field multiple times by preceding it by "XXXX." for example:
7426 this is the same syntax as used in the req config file.
7429 *) Allow certificate extensions to be added to certificate requests. These
7430 are specified in a 'req_extensions' option of the req section of the
7431 config file. They can be printed out with the -text option to req but
7432 are otherwise ignored at present.
7435 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
7436 data read consists of only the final block it would not decrypted because
7437 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
7438 A misplaced 'break' also meant the decrypted final block might not be
7439 copied until the next read.
7442 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
7443 a few extra parameters to the DH structure: these will be useful if
7444 for example we want the value of 'q' or implement X9.42 DH.
7447 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
7448 provides hooks that allow the default DSA functions or functions on a
7449 "per key" basis to be replaced. This allows hardware acceleration and
7450 hardware key storage to be handled without major modification to the
7451 library. Also added low level modexp hooks and CRYPTO_EX structure and
7452 associated functions.
7455 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
7456 as "read only": it can't be written to and the buffer it points to will
7457 not be freed. Reading from a read only BIO is much more efficient than
7458 a normal memory BIO. This was added because there are several times when
7459 an area of memory needs to be read from a BIO. The previous method was
7460 to create a memory BIO and write the data to it, this results in two
7461 copies of the data and an O(n^2) reading algorithm. There is a new
7462 function BIO_new_mem_buf() which creates a read only memory BIO from
7463 an area of memory. Also modified the PKCS#7 routines to use read only
7467 *) Bugfix: ssl23_get_client_hello did not work properly when called in
7468 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
7469 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
7470 but a retry condition occured while trying to read the rest.
7473 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
7474 NID_pkcs7_encrypted by default: this was wrong since this should almost
7475 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
7476 the encrypted data type: this is a more sensible place to put it and it
7477 allows the PKCS#12 code to be tidied up that duplicated this
7481 *) Changed obj_dat.pl script so it takes its input and output files on
7482 the command line. This should avoid shell escape redirection problems
7486 *) Initial support for certificate extension requests, these are included
7487 in things like Xenroll certificate requests. Included functions to allow
7488 extensions to be obtained and added.
7491 *) -crlf option to s_client and s_server for sending newlines as
7492 CRLF (as required by many protocols).
7495 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
7497 *) Install libRSAglue.a when OpenSSL is built with RSAref.
7498 [Ralf S. Engelschall]
7500 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
7501 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
7503 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
7507 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
7508 DH parameters/keys (q is lost during that conversion, but the resulting
7509 DH parameters contain its length).
7511 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
7512 much faster than DH_generate_parameters (which creates parameters
7513 where p = 2*q + 1), and also the smaller q makes DH computations
7514 much more efficient (160-bit exponentiation instead of 1024-bit
7515 exponentiation); so this provides a convenient way to support DHE
7516 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
7517 utter importance to use
7518 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7520 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
7521 when such DH parameters are used, because otherwise small subgroup
7522 attacks may become possible!
7525 *) Avoid memory leak in i2d_DHparams.
7528 *) Allow the -k option to be used more than once in the enc program:
7529 this allows the same encrypted message to be read by multiple recipients.
7532 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
7533 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
7534 it will always use the numerical form of the OID, even if it has a short
7538 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
7539 method only got called if p,q,dmp1,dmq1,iqmp components were present,
7540 otherwise bn_mod_exp was called. In the case of hardware keys for example
7541 no private key components need be present and it might store extra data
7542 in the RSA structure, which cannot be accessed from bn_mod_exp.
7543 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
7544 private key operations.
7547 *) Added support for SPARC Linux.
7550 *) pem_password_cb function type incompatibly changed from
7551 typedef int pem_password_cb(char *buf, int size, int rwflag);
7553 ....(char *buf, int size, int rwflag, void *userdata);
7554 so that applications can pass data to their callbacks:
7555 The PEM[_ASN1]_{read,write}... functions and macros now take an
7556 additional void * argument, which is just handed through whenever
7557 the password callback is called.
7558 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
7560 New function SSL_CTX_set_default_passwd_cb_userdata.
7562 Compatibility note: As many C implementations push function arguments
7563 onto the stack in reverse order, the new library version is likely to
7564 interoperate with programs that have been compiled with the old
7565 pem_password_cb definition (PEM_whatever takes some data that
7566 happens to be on the stack as its last argument, and the callback
7567 just ignores this garbage); but there is no guarantee whatsoever that
7570 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
7571 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
7572 problems not only on Windows, but also on some Unix platforms.
7573 To avoid problematic command lines, these definitions are now in an
7574 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
7575 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
7578 *) MIPS III/IV assembler module is reimplemented.
7581 *) More DES library cleanups: remove references to srand/rand and
7582 delete an unused file.
7585 *) Add support for the the free Netwide assembler (NASM) under Win32,
7586 since not many people have MASM (ml) and it can be hard to obtain.
7587 This is currently experimental but it seems to work OK and pass all
7588 the tests. Check out INSTALL.W32 for info.
7591 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
7592 without temporary keys kept an extra copy of the server key,
7593 and connections with temporary keys did not free everything in case
7597 *) New function RSA_check_key and new openssl rsa option -check
7598 for verifying the consistency of RSA keys.
7599 [Ulf Moeller, Bodo Moeller]
7601 *) Various changes to make Win32 compile work:
7602 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
7603 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
7604 comparison" warnings.
7605 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
7608 *) Add a debugging option to PKCS#5 v2 key generation function: when
7609 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
7610 derived keys are printed to stderr.
7613 *) Copy the flags in ASN1_STRING_dup().
7614 [Roman E. Pavlov <pre@mo.msk.ru>]
7616 *) The x509 application mishandled signing requests containing DSA
7617 keys when the signing key was also DSA and the parameters didn't match.
7619 It was supposed to omit the parameters when they matched the signing key:
7620 the verifying software was then supposed to automatically use the CA's
7621 parameters if they were absent from the end user certificate.
7623 Omitting parameters is no longer recommended. The test was also
7624 the wrong way round! This was probably due to unusual behaviour in
7625 EVP_cmp_parameters() which returns 1 if the parameters match.
7626 This meant that parameters were omitted when they *didn't* match and
7627 the certificate was useless. Certificates signed with 'ca' didn't have
7629 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
7631 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
7632 The interface is as follows:
7633 Applications can use
7634 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
7635 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
7636 "off" is now the default.
7637 The library internally uses
7638 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
7639 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
7640 to disable memory-checking temporarily.
7642 Some inconsistent states that previously were possible (and were
7643 even the default) are now avoided.
7645 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
7646 with each memory chunk allocated; this is occasionally more helpful
7647 than just having a counter.
7649 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
7651 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
7655 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
7656 which largely parallels "options", but is for changing API behaviour,
7657 whereas "options" are about protocol behaviour.
7658 Initial "mode" flags are:
7660 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
7661 a single record has been written.
7662 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
7663 retries use the same buffer location.
7664 (But all of the contents must be
7668 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
7671 *) Fix problems with no-hmac etc.
7672 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
7674 *) New functions RSA_get_default_method(), RSA_set_method() and
7675 RSA_get_method(). These allows replacement of RSA_METHODs without having
7676 to mess around with the internals of an RSA structure.
7679 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
7680 Also really enable memory leak checks in openssl.c and in some
7682 [Chad C. Mulligan, Bodo Moeller]
7684 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
7685 up the length of negative integers. This has now been simplified to just
7686 store the length when it is first determined and use it later, rather
7687 than trying to keep track of where data is copied and updating it to
7689 [Steve Henson, reported by Brien Wheeler
7690 <bwheeler@authentica-security.com>]
7692 *) Add a new function PKCS7_signatureVerify. This allows the verification
7693 of a PKCS#7 signature but with the signing certificate passed to the
7694 function itself. This contrasts with PKCS7_dataVerify which assumes the
7695 certificate is present in the PKCS#7 structure. This isn't always the
7696 case: certificates can be omitted from a PKCS#7 structure and be
7697 distributed by "out of band" means (such as a certificate database).
7700 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
7701 function prototypes in pem.h, also change util/mkdef.pl to add the
7702 necessary function names.
7705 *) mk1mf.pl (used by Windows builds) did not properly read the
7706 options set by Configure in the top level Makefile, and Configure
7707 was not even able to write more than one option correctly.
7708 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
7711 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
7712 file to be loaded from a BIO or FILE pointer. The BIO version will
7713 for example allow memory BIOs to contain config info.
7716 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
7717 Whoever hopes to achieve shared-library compatibility across versions
7718 must use this, not the compile-time macro.
7719 (Exercise 0.9.4: Which is the minimum library version required by
7721 Note: All this applies only to multi-threaded programs, others don't
7725 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
7726 through a BIO pair triggered the default case, i.e.
7727 SSLerr(...,SSL_R_UNKNOWN_STATE).
7730 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
7731 can use the SSL library even if none of the specific BIOs is
7735 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
7736 for the encoded length.
7737 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
7739 *) Add initial documentation of the X509V3 functions.
7742 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
7743 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
7744 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
7745 secure PKCS#8 private key format with a high iteration count.
7748 *) Fix determination of Perl interpreter: A perl or perl5
7749 _directory_ in $PATH was also accepted as the interpreter.
7750 [Ralf S. Engelschall]
7752 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
7753 wrong with it but it was very old and did things like calling
7754 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
7758 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
7759 to use the new extension code.
7762 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
7763 with macros. This should make it easier to change their form, add extra
7764 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
7768 *) Add to configuration table a new entry that can specify an alternative
7769 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
7770 according to Mark Crispin <MRC@Panda.COM>.
7774 *) DES CBC did not update the IV. Weird.
7777 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
7778 Changing the behaviour of the former might break existing programs --
7779 where IV updating is needed, des_ncbc_encrypt can be used.
7782 *) When bntest is run from "make test" it drives bc to check its
7783 calculations, as well as internally checking them. If an internal check
7784 fails, it needs to cause bc to give a non-zero result or make test carries
7785 on without noticing the failure. Fixed.
7788 *) DES library cleanups.
7791 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
7792 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
7793 ciphers. NOTE: although the key derivation function has been verified
7794 against some published test vectors it has not been extensively tested
7795 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
7799 *) Instead of "mkdir -p", which is not fully portable, use new
7800 Perl script "util/mkdir-p.pl".
7803 *) Rewrite the way password based encryption (PBE) is handled. It used to
7804 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
7805 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
7806 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
7807 the 'parameter' field of the AlgorithmIdentifier is passed to the
7808 underlying key generation function so it must do its own ASN1 parsing.
7809 This has also changed the EVP_PBE_CipherInit() function which now has a
7810 'parameter' argument instead of literal salt and iteration count values
7811 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
7814 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
7815 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
7816 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
7817 KEY" because this clashed with PKCS#8 unencrypted string. Since this
7818 value was just used as a "magic string" and not used directly its
7819 value doesn't matter.
7822 *) Introduce some semblance of const correctness to BN. Shame C doesn't
7826 *) "linux-sparc64" configuration (ultrapenguin).
7827 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
7828 "linux-sparc" configuration.
7829 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
7831 *) config now generates no-xxx options for missing ciphers.
7834 *) Support the EBCDIC character set (work in progress).
7835 File ebcdic.c not yet included because it has a different license.
7836 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7838 *) Support BS2000/OSD-POSIX.
7839 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7841 *) Make callbacks for key generation use void * instead of char *.
7844 *) Make S/MIME samples compile (not yet tested).
7847 *) Additional typesafe stacks.
7850 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
7854 Changes between 0.9.3 and 0.9.3a [29 May 1999]
7856 *) New configuration variant "sco5-gcc".
7858 *) Updated some demos.
7859 [Sean O Riordain, Wade Scholine]
7861 *) Add missing BIO_free at exit of pkcs12 application.
7864 *) Fix memory leak in conf.c.
7867 *) Updates for Win32 to assembler version of MD5.
7870 *) Set #! path to perl in apps/der_chop to where we found it
7871 instead of using a fixed path.
7874 *) SHA library changes for irix64-mips4-cc.
7877 *) Improvements for VMS support.
7881 Changes between 0.9.2b and 0.9.3 [24 May 1999]
7883 *) Bignum library bug fix. IRIX 6 passes "make test" now!
7884 This also avoids the problems with SC4.2 and unpatched SC5.
7885 [Andy Polyakov <appro@fy.chalmers.se>]
7887 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
7888 These are required because of the typesafe stack would otherwise break
7889 existing code. If old code used a structure member which used to be STACK
7890 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
7891 sk_num or sk_value it would produce an error because the num, data members
7892 are not present in STACK_OF. Now it just produces a warning. sk_set
7893 replaces the old method of assigning a value to sk_value
7894 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
7895 that does this will no longer work (and should use sk_set instead) but
7896 this could be regarded as a "questionable" behaviour anyway.
7899 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
7900 correctly handle encrypted S/MIME data.
7903 *) Change type of various DES function arguments from des_cblock
7904 (which means, in function argument declarations, pointer to char)
7905 to des_cblock * (meaning pointer to array with 8 char elements),
7906 which allows the compiler to do more typechecking; it was like
7907 that back in SSLeay, but with lots of ugly casts.
7909 Introduce new type const_des_cblock.
7912 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
7913 problems: find RecipientInfo structure that matches recipient certificate
7914 and initialise the ASN1 structures properly based on passed cipher.
7917 *) Belatedly make the BN tests actually check the results.
7920 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
7921 to and from BNs: it was completely broken. New compilation option
7922 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
7923 key elements as negative integers.
7926 *) Reorganize and speed up MD5.
7927 [Andy Polyakov <appro@fy.chalmers.se>]
7930 [Richard Levitte <richard@levitte.org>]
7932 *) New option -out to asn1parse to allow the parsed structure to be
7933 output to a file. This is most useful when combined with the -strparse
7934 option to examine the output of things like OCTET STRINGS.
7937 *) Make SSL library a little more fool-proof by not requiring any longer
7938 that SSL_set_{accept,connect}_state be called before
7939 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
7940 in many applications because usually everything *appeared* to work as
7941 intended anyway -- now it really works as intended).
7944 *) Move openssl.cnf out of lib/.
7947 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
7948 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
7949 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
7950 [Ralf S. Engelschall]
7952 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
7953 handle PKCS#7 enveloped data properly.
7954 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
7956 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
7957 copying pointers. The cert_st handling is changed by this in
7958 various ways (and thus what used to be known as ctx->default_cert
7959 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
7960 any longer when s->cert does not give us what we need).
7961 ssl_cert_instantiate becomes obsolete by this change.
7962 As soon as we've got the new code right (possibly it already is?),
7963 we have solved a couple of bugs of the earlier code where s->cert
7964 was used as if it could not have been shared with other SSL structures.
7966 Note that using the SSL API in certain dirty ways now will result
7967 in different behaviour than observed with earlier library versions:
7968 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
7969 does not influence s as it used to.
7971 In order to clean up things more thoroughly, inside SSL_SESSION
7972 we don't use CERT any longer, but a new structure SESS_CERT
7973 that holds per-session data (if available); currently, this is
7974 the peer's certificate chain and, for clients, the server's certificate
7975 and temporary key. CERT holds only those values that can have
7976 meaningful defaults in an SSL_CTX.
7979 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
7980 from the internal representation. Various PKCS#7 fixes: remove some
7981 evil casts and set the enc_dig_alg field properly based on the signing
7985 *) Allow PKCS#12 password to be set from the command line or the
7986 environment. Let 'ca' get its config file name from the environment
7987 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
7991 *) Allow certificate policies extension to use an IA5STRING for the
7992 organization field. This is contrary to the PKIX definition but
7993 VeriSign uses it and IE5 only recognises this form. Document 'x509'
7997 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
7998 without disallowing inline assembler and the like for non-pedantic builds.
8001 *) Support Borland C++ builder.
8002 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8007 *) SHA-1 cleanups and performance enhancements.
8008 [Andy Polyakov <appro@fy.chalmers.se>]
8010 *) Sparc v8plus assembler for the bignum library.
8011 [Andy Polyakov <appro@fy.chalmers.se>]
8013 *) Accept any -xxx and +xxx compiler options in Configure.
8016 *) Update HPUX configuration.
8019 *) Add missing sk_<type>_unshift() function to safestack.h
8020 [Ralf S. Engelschall]
8022 *) New function SSL_CTX_use_certificate_chain_file that sets the
8023 "extra_cert"s in addition to the certificate. (This makes sense
8024 only for "PEM" format files, as chains as a whole are not
8028 *) Support verify_depth from the SSL API.
8029 x509_vfy.c had what can be considered an off-by-one-error:
8030 Its depth (which was not part of the external interface)
8031 was actually counting the number of certificates in a chain;
8032 now it really counts the depth.
8035 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8036 instead of X509err, which often resulted in confusing error
8037 messages since the error codes are not globally unique
8038 (e.g. an alleged error in ssl3_accept when a certificate
8039 didn't match the private key).
8041 *) New function SSL_CTX_set_session_id_context that allows to set a default
8042 value (so that you don't need SSL_set_session_id_context for each
8043 connection using the SSL_CTX).
8046 *) OAEP decoding bug fix.
8049 *) Support INSTALL_PREFIX for package builders, as proposed by
8053 *) New Configure options "threads" and "no-threads". For systems
8054 where the proper compiler options are known (currently Solaris
8055 and Linux), "threads" is the default.
8058 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8061 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8062 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8063 such as /usr/local/bin.
8066 *) "make linux-shared" to build shared libraries.
8067 [Niels Poppe <niels@netbox.org>]
8069 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8072 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8073 extension adding in x509 utility.
8076 *) Remove NOPROTO sections and error code comments.
8079 *) Partial rewrite of the DEF file generator to now parse the ANSI
8083 *) New Configure options --prefix=DIR and --openssldir=DIR.
8086 *) Complete rewrite of the error code script(s). It is all now handled
8087 by one script at the top level which handles error code gathering,
8088 header rewriting and C source file generation. It should be much better
8089 than the old method: it now uses a modified version of Ulf's parser to
8090 read the ANSI prototypes in all header files (thus the old K&R definitions
8091 aren't needed for error creation any more) and do a better job of
8092 translating function codes into names. The old 'ASN1 error code imbedded
8093 in a comment' is no longer necessary and it doesn't use .err files which
8094 have now been deleted. Also the error code call doesn't have to appear all
8095 on one line (which resulted in some large lines...).
8098 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8101 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8102 0 (which usually indicates a closed connection), but continue reading.
8105 *) Fix some race conditions.
8108 *) Add support for CRL distribution points extension. Add Certificate
8109 Policies and CRL distribution points documentation.
8112 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8115 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8116 8 of keying material. Merlin has also confirmed interop with this fix
8117 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8118 [Merlin Hughes <merlin@baltimore.ie>]
8120 *) Fix lots of warnings.
8121 [Richard Levitte <levitte@stacken.kth.se>]
8123 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8124 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8125 [Richard Levitte <levitte@stacken.kth.se>]
8127 *) Fix problems with sizeof(long) == 8.
8128 [Andy Polyakov <appro@fy.chalmers.se>]
8130 *) Change functions to ANSI C.
8133 *) Fix typos in error codes.
8134 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8136 *) Remove defunct assembler files from Configure.
8139 *) SPARC v8 assembler BIGNUM implementation.
8140 [Andy Polyakov <appro@fy.chalmers.se>]
8142 *) Support for Certificate Policies extension: both print and set.
8143 Various additions to support the r2i method this uses.
8146 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8147 return a const string when you are expecting an allocated buffer.
8150 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8151 types DirectoryString and DisplayText.
8154 *) Add code to allow r2i extensions to access the configuration database,
8155 add an LHASH database driver and add several ctx helper functions.
8158 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8159 fail when they extended the size of a BIGNUM.
8162 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8163 support typesafe stack.
8166 *) Fix typo in SSL_[gs]et_options().
8167 [Nils Frostberg <nils@medcom.se>]
8169 *) Delete various functions and files that belonged to the (now obsolete)
8170 old X509V3 handling code.
8173 *) New Configure option "rsaref".
8176 *) Don't auto-generate pem.h.
8179 *) Introduce type-safe ASN.1 SETs.
8182 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8183 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8185 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8186 that links with OpenSSL (well at least cause lots of warnings), but fear
8187 not: the conversion is trivial, and it eliminates loads of evil casts. A
8188 few STACKed things have been converted already. Feel free to convert more.
8189 In the fullness of time, I'll do away with the STACK type altogether.
8192 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8193 specified in <certfile> by updating the entry in the index.txt file.
8194 This way one no longer has to edit the index.txt file manually for
8195 revoking a certificate. The -revoke option does the gory details now.
8196 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8198 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8199 `-text' option at all and this way the `-noout -text' combination was
8200 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8201 [Ralf S. Engelschall]
8203 *) Make sure a corresponding plain text error message exists for the
8204 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8205 verify callback function determined that a certificate was revoked.
8206 [Ralf S. Engelschall]
8208 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8209 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8210 all available cipers including rc5, which was forgotten until now.
8211 In order to let the testing shell script know which algorithms
8212 are available, a new (up to now undocumented) command
8213 "openssl list-cipher-commands" is used.
8216 *) Bugfix: s_client occasionally would sleep in select() when
8217 it should have checked SSL_pending() first.
8220 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8221 the raw DSA values prior to ASN.1 encoding.
8224 *) Tweaks to Configure
8225 [Niels Poppe <niels@netbox.org>]
8227 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8231 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8234 *) New config option to avoid instructions that are illegal on the 80386.
8235 The default code is faster, but requires at least a 486.
8238 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8239 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8240 same as SSL2_VERSION anyway.
8243 *) New "-showcerts" option for s_client.
8246 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8247 application. Various cleanups and fixes.
8250 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
8251 modify error routines to work internally. Add error codes and PBE init
8252 to library startup routines.
8255 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
8256 packing functions to asn1 and evp. Changed function names and error
8257 codes along the way.
8260 *) PKCS12 integration: and so it begins... First of several patches to
8261 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
8262 objects to objects.h
8265 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
8266 and display support for Thawte strong extranet extension.
8269 *) Add LinuxPPC support.
8270 [Jeff Dubrule <igor@pobox.org>]
8272 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
8273 bn_div_words in alpha.s.
8274 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
8276 *) Make sure the RSA OAEP test is skipped under -DRSAref because
8277 OAEP isn't supported when OpenSSL is built with RSAref.
8278 [Ulf Moeller <ulf@fitug.de>]
8280 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
8281 so they no longer are missing under -DNOPROTO.
8282 [Soren S. Jorvang <soren@t.dk>]
8285 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
8287 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
8288 doesn't work when the session is reused. Coming soon!
8291 *) Fix a security hole, that allows sessions to be reused in the wrong
8292 context thus bypassing client cert protection! All software that uses
8293 client certs and session caches in multiple contexts NEEDS PATCHING to
8294 allow session reuse! A fuller solution is in the works.
8295 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
8297 *) Some more source tree cleanups (removed obsolete files
8298 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
8299 permission on "config" script to be executable) and a fix for the INSTALL
8301 [Ulf Moeller <ulf@fitug.de>]
8303 *) Remove some legacy and erroneous uses of malloc, free instead of
8305 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
8307 *) Make rsa_oaep_test return non-zero on error.
8308 [Ulf Moeller <ulf@fitug.de>]
8310 *) Add support for native Solaris shared libraries. Configure
8311 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
8312 if someone would make that last step automatic.
8313 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
8315 *) ctx_size was not built with the right compiler during "make links". Fixed.
8318 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
8319 except NULL ciphers". This means the default cipher list will no longer
8320 enable NULL ciphers. They need to be specifically enabled e.g. with
8321 the string "DEFAULT:eNULL".
8324 *) Fix to RSA private encryption routines: if p < q then it would
8325 occasionally produce an invalid result. This will only happen with
8326 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
8329 *) Be less restrictive and allow also `perl util/perlpath.pl
8330 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
8331 because this way one can also use an interpreter named `perl5' (which is
8332 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
8333 installed as `perl').
8334 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8336 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
8337 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8339 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
8340 advapi32.lib to Win32 build and change the pem test comparision
8341 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
8342 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
8343 and crypto/des/ede_cbcm_enc.c.
8346 *) DES quad checksum was broken on big-endian architectures. Fixed.
8349 *) Comment out two functions in bio.h that aren't implemented. Fix up the
8350 Win32 test batch file so it (might) work again. The Win32 test batch file
8351 is horrible: I feel ill....
8354 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
8355 in e_os.h. Audit of header files to check ANSI and non ANSI
8356 sections: 10 functions were absent from non ANSI section and not exported
8357 from Windows DLLs. Fixed up libeay.num for new functions.
8360 *) Make `openssl version' output lines consistent.
8361 [Ralf S. Engelschall]
8363 *) Fix Win32 symbol export lists for BIO functions: Added
8364 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
8365 to ms/libeay{16,32}.def.
8366 [Ralf S. Engelschall]
8368 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
8369 fine under Unix and passes some trivial tests I've now added. But the
8370 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
8371 added to make sure no one expects that this stuff really works in the
8372 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
8373 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
8375 [Ralf S. Engelschall]
8377 *) Fix the generation of two part addresses in perl.
8378 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
8380 *) Add config entry for Linux on MIPS.
8381 [John Tobey <jtobey@channel1.com>]
8383 *) Make links whenever Configure is run, unless we are on Windoze.
8386 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
8387 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
8391 *) Add a useful kludge to allow package maintainers to specify compiler and
8392 other platforms details on the command line without having to patch the
8393 Configure script everytime: One now can use ``perl Configure
8394 <id>:<details>'', i.e. platform ids are allowed to have details appended
8395 to them (seperated by colons). This is treated as there would be a static
8396 pre-configured entry in Configure's %table under key <id> with value
8397 <details> and ``perl Configure <id>'' is called. So, when you want to
8398 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
8399 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
8400 now, which overrides the FreeBSD-elf entry on-the-fly.
8401 [Ralf S. Engelschall]
8403 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
8406 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
8407 on the `perl Configure ...' command line. This way one can compile
8408 OpenSSL libraries with Position Independent Code (PIC) which is needed
8409 for linking it into DSOs.
8410 [Ralf S. Engelschall]
8412 *) Remarkably, export ciphers were totally broken and no-one had noticed!
8416 *) Cleaned up the LICENSE document: The official contact for any license
8417 questions now is the OpenSSL core team under openssl-core@openssl.org.
8418 And add a paragraph about the dual-license situation to make sure people
8419 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
8420 to the OpenSSL toolkit.
8421 [Ralf S. Engelschall]
8423 *) General source tree makefile cleanups: Made `making xxx in yyy...'
8424 display consistent in the source tree and replaced `/bin/rm' by `rm'.
8425 Additonally cleaned up the `make links' target: Remove unnecessary
8426 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
8427 to speed processing and no longer clutter the display with confusing
8428 stuff. Instead only the actually done links are displayed.
8429 [Ralf S. Engelschall]
8431 *) Permit null encryption ciphersuites, used for authentication only. It used
8432 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
8433 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
8437 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
8438 signed attributes when verifying signatures (this would break them),
8439 the detached data encoding was wrong and public keys obtained using
8440 X509_get_pubkey() weren't freed.
8443 *) Add text documentation for the BUFFER functions. Also added a work around
8444 to a Win95 console bug. This was triggered by the password read stuff: the
8445 last character typed gets carried over to the next fread(). If you were
8446 generating a new cert request using 'req' for example then the last
8447 character of the passphrase would be CR which would then enter the first
8451 *) Added the new `Includes OpenSSL Cryptography Software' button as
8452 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
8453 button and can be used by applications based on OpenSSL to show the
8454 relationship to the OpenSSL project.
8455 [Ralf S. Engelschall]
8457 *) Remove confusing variables in function signatures in files
8458 ssl/ssl_lib.c and ssl/ssl.h.
8459 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8461 *) Don't install bss_file.c under PREFIX/include/
8462 [Lennart Bong <lob@kulthea.stacken.kth.se>]
8464 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
8465 functions that return function pointers and has support for NT specific
8466 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
8467 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
8468 unsigned to signed types: this was killing the Win32 compile.
8471 *) Add new certificate file to stack functions,
8472 SSL_add_dir_cert_subjects_to_stack() and
8473 SSL_add_file_cert_subjects_to_stack(). These largely supplant
8474 SSL_load_client_CA_file(), and can be used to add multiple certs easily
8475 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
8476 This means that Apache-SSL and similar packages don't have to mess around
8477 to add as many CAs as they want to the preferred list.
8480 *) Experiment with doxygen documentation. Currently only partially applied to
8482 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
8483 openssl.doxy as the configuration file.
8486 *) Get rid of remaining C++-style comments which strict C compilers hate.
8487 [Ralf S. Engelschall, pointed out by Carlos Amengual]
8489 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
8490 compiled in by default: it has problems with large keys.
8493 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
8494 DH private keys and/or callback functions which directly correspond to
8495 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
8496 is needed for applications which have to configure certificates on a
8497 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
8499 For the RSA certificate situation is makes no difference, but
8500 for the DSA certificate situation this fixes the "no shared cipher"
8501 problem where the OpenSSL cipher selection procedure failed because the
8502 temporary keys were not overtaken from the context and the API provided
8503 no way to reconfigure them.
8504 The new functions now let applications reconfigure the stuff and they
8505 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
8506 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
8507 non-public-API function ssl_cert_instantiate() is used as a helper
8508 function and also to reduce code redundancy inside ssl_rsa.c.
8509 [Ralf S. Engelschall]
8511 *) Move s_server -dcert and -dkey options out of the undocumented feature
8512 area because they are useful for the DSA situation and should be
8513 recognized by the users.
8514 [Ralf S. Engelschall]
8516 *) Fix the cipher decision scheme for export ciphers: the export bits are
8517 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
8518 SSL_EXP_MASK. So, the original variable has to be used instead of the
8519 already masked variable.
8520 [Richard Levitte <levitte@stacken.kth.se>]
8522 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
8523 [Richard Levitte <levitte@stacken.kth.se>]
8525 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
8526 from `int' to `unsigned int' because it's a length and initialized by
8527 EVP_DigestFinal() which expects an `unsigned int *'.
8528 [Richard Levitte <levitte@stacken.kth.se>]
8530 *) Don't hard-code path to Perl interpreter on shebang line of Configure
8531 script. Instead use the usual Shell->Perl transition trick.
8532 [Ralf S. Engelschall]
8534 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
8535 (in addition to RSA certificates) to match the behaviour of `openssl dsa
8536 -noout -modulus' as it's already the case for `openssl rsa -noout
8537 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
8538 currently the public key is printed (a decision which was already done by
8539 `openssl dsa -modulus' in the past) which serves a similar purpose.
8540 Additionally the NO_RSA no longer completely removes the whole -modulus
8541 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
8543 [Ralf S. Engelschall]
8545 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
8546 BIO. See the source (crypto/evp/bio_ok.c) for more info.
8547 [Arne Ansper <arne@ats.cyber.ee>]
8549 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
8550 to be added. Now both 'req' and 'ca' can use new objects defined in the
8554 *) Add cool BIO that does syslog (or event log on NT).
8555 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
8557 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
8558 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
8559 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
8560 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
8563 *) Add preliminary config info for new extension code.
8566 *) Make RSA_NO_PADDING really use no padding.
8567 [Ulf Moeller <ulf@fitug.de>]
8569 *) Generate errors when private/public key check is done.
8572 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
8573 for some CRL extensions and new objects added.
8576 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
8577 key usage extension and fuller support for authority key id.
8580 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
8581 padding method for RSA, which is recommended for new applications in PKCS
8582 #1 v2.0 (RFC 2437, October 1998).
8583 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
8584 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
8585 against Bleichbacher's attack on RSA.
8586 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
8589 *) Updates to the new SSL compression code
8590 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8592 *) Fix so that the version number in the master secret, when passed
8593 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
8594 (because the server will not accept higher), that the version number
8595 is 0x03,0x01, not 0x03,0x00
8596 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8598 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
8599 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
8600 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
8603 *) Support for RAW extensions where an arbitrary extension can be
8604 created by including its DER encoding. See apps/openssl.cnf for
8608 *) Make sure latest Perl versions don't interpret some generated C array
8609 code as Perl array code in the crypto/err/err_genc.pl script.
8610 [Lars Weber <3weber@informatik.uni-hamburg.de>]
8612 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
8613 not many people have the assembler. Various Win32 compilation fixes and
8614 update to the INSTALL.W32 file with (hopefully) more accurate Win32
8618 *) Modify configure script 'Configure' to automatically create crypto/date.h
8619 file under Win32 and also build pem.h from pem.org. New script
8620 util/mkfiles.pl to create the MINFO file on environments that can't do a
8621 'make files': perl util/mkfiles.pl >MINFO should work.
8624 *) Major rework of DES function declarations, in the pursuit of correctness
8625 and purity. As a result, many evil casts evaporated, and some weirdness,
8626 too. You may find this causes warnings in your code. Zapping your evil
8627 casts will probably fix them. Mostly.
8630 *) Fix for a typo in asn1.h. Bug fix to object creation script
8631 obj_dat.pl. It considered a zero in an object definition to mean
8632 "end of object": none of the objects in objects.h have any zeros
8633 so it wasn't spotted.
8634 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
8636 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
8637 Masking (CBCM). In the absence of test vectors, the best I have been able
8638 to do is check that the decrypt undoes the encrypt, so far. Send me test
8639 vectors if you have them.
8642 *) Correct calculation of key length for export ciphers (too much space was
8643 allocated for null ciphers). This has not been tested!
8646 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
8647 message is now correct (it understands "crypto" and "ssl" on its
8648 command line). There is also now an "update" option. This will update
8649 the util/ssleay.num and util/libeay.num files with any new functions.
8651 perl util/mkdef.pl crypto ssl update
8652 it will update them.
8655 *) Overhauled the Perl interface (perl/*):
8656 - ported BN stuff to OpenSSL's different BN library
8657 - made the perl/ source tree CVS-aware
8658 - renamed the package from SSLeay to OpenSSL (the files still contain
8659 their history because I've copied them in the repository)
8660 - removed obsolete files (the test scripts will be replaced
8661 by better Test::Harness variants in the future)
8662 [Ralf S. Engelschall]
8664 *) First cut for a very conservative source tree cleanup:
8665 1. merge various obsolete readme texts into doc/ssleay.txt
8666 where we collect the old documents and readme texts.
8667 2. remove the first part of files where I'm already sure that we no
8668 longer need them because of three reasons: either they are just temporary
8669 files which were left by Eric or they are preserved original files where
8670 I've verified that the diff is also available in the CVS via "cvs diff
8671 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
8672 the crypto/md/ stuff).
8673 [Ralf S. Engelschall]
8675 *) More extension code. Incomplete support for subject and issuer alt
8676 name, issuer and authority key id. Change the i2v function parameters
8677 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
8678 what that's for :-) Fix to ASN1 macro which messed up
8679 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
8682 *) Preliminary support for ENUMERATED type. This is largely copied from the
8686 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
8687 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8689 *) Make sure `make rehash' target really finds the `openssl' program.
8690 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
8692 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
8693 like to hear about it if this slows down other processors.
8696 *) Add CygWin32 platform information to Configure script.
8697 [Alan Batie <batie@aahz.jf.intel.com>]
8699 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
8700 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
8702 *) New program nseq to manipulate netscape certificate sequences
8705 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
8709 *) Fixes to BN code. Previously the default was to define BN_RECURSION
8710 but the BN code had some problems that would cause failures when
8711 doing certificate verification and some other functions.
8712 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
8714 *) Add ASN1 and PEM code to support netscape certificate sequences.
8717 *) Add ASN1 and PEM code to support netscape certificate sequences.
8720 *) Add several PKIX and private extended key usage OIDs.
8723 *) Modify the 'ca' program to handle the new extension code. Modify
8724 openssl.cnf for new extension format, add comments.
8727 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
8728 and add a sample to openssl.cnf so req -x509 now adds appropriate
8732 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
8733 error code, add initial support to X509_print() and x509 application.
8736 *) Takes a deep breath and start addding X509 V3 extension support code. Add
8737 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
8738 stuff is currently isolated and isn't even compiled yet.
8741 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
8742 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
8743 Removed the versions check from X509 routines when loading extensions:
8744 this allows certain broken certificates that don't set the version
8745 properly to be processed.
8748 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
8749 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
8750 can still be regenerated with "make depend".
8753 *) Spelling mistake in C version of CAST-128.
8754 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
8756 *) Changes to the error generation code. The perl script err-code.pl
8757 now reads in the old error codes and retains the old numbers, only
8758 adding new ones if necessary. It also only changes the .err files if new
8759 codes are added. The makefiles have been modified to only insert errors
8760 when needed (to avoid needlessly modifying header files). This is done
8761 by only inserting errors if the .err file is newer than the auto generated
8762 C file. To rebuild all the error codes from scratch (the old behaviour)
8763 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
8764 or delete all the .err files.
8767 *) CAST-128 was incorrectly implemented for short keys. The C version has
8768 been fixed, but is untested. The assembler versions are also fixed, but
8769 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
8770 to regenerate it if needed.
8771 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
8772 Hagino <itojun@kame.net>]
8774 *) File was opened incorrectly in randfile.c.
8775 [Ulf Möller <ulf@fitug.de>]
8777 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
8778 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
8779 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
8780 al: it's just almost always a UTCTime. Note this patch adds new error
8781 codes so do a "make errors" if there are problems.
8784 *) Correct Linux 1 recognition in config.
8785 [Ulf Möller <ulf@fitug.de>]
8787 *) Remove pointless MD5 hash when using DSA keys in ca.
8788 [Anonymous <nobody@replay.com>]
8790 *) Generate an error if given an empty string as a cert directory. Also
8791 generate an error if handed NULL (previously returned 0 to indicate an
8792 error, but didn't set one).
8793 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
8795 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
8798 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
8799 parameters. This was causing a warning which killed off the Win32 compile.
8802 *) Remove C++ style comments from crypto/bn/bn_local.h.
8803 [Neil Costigan <neil.costigan@celocom.com>]
8805 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
8806 based on a text string, looking up short and long names and finally
8807 "dot" format. The "dot" format stuff didn't work. Added new function
8808 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
8809 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
8810 OID is not part of the table.
8813 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
8814 X509_LOOKUP_by_alias().
8817 *) Sort openssl functions by name.
8820 *) Get the gendsa program working (hopefully) and add it to app list. Remove
8821 encryption from sample DSA keys (in case anyone is interested the password
8825 *) Make _all_ *_free functions accept a NULL pointer.
8826 [Frans Heymans <fheymans@isaserver.be>]
8828 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
8830 [Anonymous <nobody@replay.com>]
8832 *) s_server should send the CAfile as acceptable CAs, not its own cert.
8833 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8835 *) Don't blow it for numeric -newkey arguments to apps/req.
8836 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
8838 *) Temp key "for export" tests were wrong in s3_srvr.c.
8839 [Anonymous <nobody@replay.com>]
8841 *) Add prototype for temp key callback functions
8842 SSL_CTX_set_tmp_{rsa,dh}_callback().
8845 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
8846 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
8849 *) X509_name_add_entry() freed the wrong thing after an error.
8850 [Arne Ansper <arne@ats.cyber.ee>]
8852 *) rsa_eay.c would attempt to free a NULL context.
8853 [Arne Ansper <arne@ats.cyber.ee>]
8855 *) BIO_s_socket() had a broken should_retry() on Windoze.
8856 [Arne Ansper <arne@ats.cyber.ee>]
8858 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
8859 [Arne Ansper <arne@ats.cyber.ee>]
8861 *) Make sure the already existing X509_STORE->depth variable is initialized
8862 in X509_STORE_new(), but document the fact that this variable is still
8863 unused in the certificate verification process.
8864 [Ralf S. Engelschall]
8866 *) Fix the various library and apps files to free up pkeys obtained from
8867 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
8870 *) Fix reference counting in X509_PUBKEY_get(). This makes
8871 demos/maurice/example2.c work, amongst others, probably.
8872 [Steve Henson and Ben Laurie]
8874 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
8875 `openssl' and second, the shortcut symlinks for the `openssl <command>'
8876 are no longer created. This way we have a single and consistent command
8877 line interface `openssl <command>', similar to `cvs <command>'.
8878 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
8880 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
8881 BIT STRING wrapper always have zero unused bits.
8884 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
8887 *) Make the top-level INSTALL documentation easier to understand.
8890 *) Makefiles updated to exit if an error occurs in a sub-directory
8891 make (including if user presses ^C) [Paul Sutton]
8893 *) Make Montgomery context stuff explicit in RSA data structure.
8896 *) Fix build order of pem and err to allow for generated pem.h.
8899 *) Fix renumbering bug in X509_NAME_delete_entry().
8902 *) Enhanced the err-ins.pl script so it makes the error library number
8903 global and can add a library name. This is needed for external ASN1 and
8904 other error libraries.
8907 *) Fixed sk_insert which never worked properly.
8910 *) Fix ASN1 macros so they can handle indefinite length construted
8911 EXPLICIT tags. Some non standard certificates use these: they can now
8915 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
8916 into a single doc/ssleay.txt bundle. This way the information is still
8917 preserved but no longer messes up this directory. Now it's new room for
8918 the new set of documenation files.
8919 [Ralf S. Engelschall]
8921 *) SETs were incorrectly DER encoded. This was a major pain, because they
8922 shared code with SEQUENCEs, which aren't coded the same. This means that
8923 almost everything to do with SETs or SEQUENCEs has either changed name or
8924 number of arguments.
8925 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
8927 *) Fix test data to work with the above.
8930 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
8931 was already fixed by Eric for 0.9.1 it seems.
8932 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
8934 *) Autodetect FreeBSD3.
8937 *) Fix various bugs in Configure. This affects the following platforms:
8941 unixware-2.0-pentium
8945 *) Eliminate generated files from CVS. Reorder tests to regenerate files
8946 before they are needed.
8949 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
8953 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
8955 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
8956 changed SSLeay to OpenSSL in version strings.
8957 [Ralf S. Engelschall]
8959 *) Some fixups to the top-level documents.
8962 *) Fixed the nasty bug where rsaref.h was not found under compile-time
8963 because the symlink to include/ was missing.
8964 [Ralf S. Engelschall]
8966 *) Incorporated the popular no-RSA/DSA-only patches
8967 which allow to compile a RSA-free SSLeay.
8968 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
8970 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
8971 when "ssleay" is still not found.
8972 [Ralf S. Engelschall]
8974 *) Added more platforms to Configure: Cray T3E, HPUX 11,
8975 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
8977 *) Updated the README file.
8978 [Ralf S. Engelschall]
8980 *) Added various .cvsignore files in the CVS repository subdirs
8981 to make a "cvs update" really silent.
8982 [Ralf S. Engelschall]
8984 *) Recompiled the error-definition header files and added
8985 missing symbols to the Win32 linker tables.
8986 [Ralf S. Engelschall]
8988 *) Cleaned up the top-level documents;
8989 o new files: CHANGES and LICENSE
8990 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
8991 o merged COPYRIGHT into LICENSE
8992 o removed obsolete TODO file
8993 o renamed MICROSOFT to INSTALL.W32
8994 [Ralf S. Engelschall]
8996 *) Removed dummy files from the 0.9.1b source tree:
8997 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
8998 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
8999 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9000 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9001 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9002 [Ralf S. Engelschall]
9004 *) Added various platform portability fixes.
9007 *) The Genesis of the OpenSSL rpject:
9008 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9009 Young and Tim J. Hudson created while they were working for C2Net until
9011 [The OpenSSL Project]
9014 Changes between 0.9.0b and 0.9.1b [not released]
9016 *) Updated a few CA certificates under certs/
9019 *) Changed some BIGNUM api stuff.
9022 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9023 DGUX x86, Linux Alpha, etc.
9026 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9027 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9031 *) Add -strparse option to asn1pars program which parses nested
9033 [Dr Stephen Henson <shenson@bigfoot.com>]
9035 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9038 *) DSA fix for "ca" program.
9041 *) Added "-genkey" option to "dsaparam" program.
9044 *) Added RIPE MD160 (rmd160) message digest.
9047 *) Added -a (all) option to "ssleay version" command.
9050 *) Added PLATFORM define which is the id given to Configure.
9053 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9056 *) Extended the ASN.1 parser routines.
9059 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9062 *) Added a BN_CTX to the BN library.
9065 *) Fixed the weak key values in DES library
9068 *) Changed API in EVP library for cipher aliases.
9071 *) Added support for RC2/64bit cipher.
9074 *) Converted the lhash library to the crypto/mem.c functions.
9077 *) Added more recognized ASN.1 object ids.
9080 *) Added more RSA padding checks for SSL/TLS.
9083 *) Added BIO proxy/filter functionality.
9086 *) Added extra_certs to SSL_CTX which can be used
9087 send extra CA certificates to the client in the CA cert chain sending
9088 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9091 *) Now Fortezza is denied in the authentication phase because
9092 this is key exchange mechanism is not supported by SSLeay at all.
9095 *) Additional PKCS1 checks.
9098 *) Support the string "TLSv1" for all TLS v1 ciphers.
9101 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9102 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9105 *) Fixed a few memory leaks.
9108 *) Fixed various code and comment typos.
9111 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9112 bytes sent in the client random.
9113 [Edward Bishop <ebishop@spyglass.com>]
projects / FreeBSD / releng / 9.3.git / blob